398 results about "Uplink channel" patented technology

Disclosed is a method for transmitting an uplink (UL) signal or receiving a downlink (DL) signal by a terminal in a wireless communication system. Particularly, the method may comprise: receiving information related to at least one first time interval unavailable for the transmission or reception; and transmitting the UL signal or receiving the DL signal through at least one second time interval other than the at least one first time interval, wherein the transmission of the UL signal and the reception of the DL signal are not performed in the at least one first time interval, and the information related to the at least one first time interval is received through downlink control information (DCI) or a medium access control-control element (MAC-CE).

First information of a DL assignment for a first PDSCH of a serving cell can be received. A first PUCCH resource and a second PUCCH resource can be identified for HARQ-ACK feedback of the first PDSCH. A starting symbol of the second PUCCH resource can be later than a starting symbol of the first PUCCH resource. Second information of a DL assignment for a second PDSCH of the serving cell can be received. A starting symbol of the second PDSCH can be later than a starting symbol of the first PDSCH. A determination can be made as to whether to delay the HARQ-ACK feedback of the first PDSCH for processing of the second PDSCH. HARQ-ACK information of the first PDSCH can be transmitted on the second PUCCH resource in response to determining to delay the HARQ-ACK feedback of the first PDSCH.

A method and device for determining channel state information (CSI) are provided. The method includes: receiving uplink pilot signals sent by a terminal at T consecutive moments; performing uplink channel estimation on the uplink pilot signals to determine uplink channel information at each moment, wherein T is an integer greater than 1; determining a channel state information reference signal (CSI-RS) beam according to the uplink channel information; sending a beamformed CSI-RS to the terminal according to the CSI-RS beam; and receiving CSI reported by the terminal.

A wireless device receives one or more configuration parameters indicating at least two sounding reference signal (SRS) resources linked for bandwidth aggregation. The at least two SRS resources comprise a first SRS resource of a first component carrier and a second SRS resource of a second component carrier without at least one uplink channel. The wireless device receives downlink control information (DCI) scheduling a transmission, where the transmission is a downlink transmission or an uplink transmission and the transmission overlaps in time with the first and second SRS resources. The wireless device drops SRS transmissions via the at least two SRS resources based on whether a time period between a last symbol of the DCI and a starting symbol of the at least two SRS resources is equal to, or greater than, a number of symbols plus a guard period.

The invention provides a secondary cell activation method, device and system, and the method can be suitable for a secondary cell activation scene. In the method, a terminal device receives a first signaling sent by a network device, the first signaling is used for triggering activation of a secondary cell, and the first signaling carries first indication information through a reserved bit, and the first indication information is used for indicating the terminal device to send a first sounding reference signal to the network device, the first sounding reference signal is used for determining uplink channel state information. And the terminal device determines a transmission resource corresponding to the secondary cell from a pre-configured transmission resource set based on the first indication information, the transmission resource being used for guiding the transmission of the first sounding reference signal. And then, the terminal equipment sends the first sounding reference signal to the network equipment by using the transmission resource. Therefore, according to the method, the first indication information can be carried through the reserved bit in the first signaling, the first signaling does not need to be transformed, and correct analysis of the first signaling is ensured.

The invention discloses a feedback method of a channel state information report, a terminal and network side equipment, and belongs to the technical field of wireless communication, the feedback method of the channel state information report in the embodiment of the invention comprises the following steps: the terminal determines a plurality of uplink channel resources associated with at least one target CSI (Channel State Information) report, under the condition that the number of the target CSI reports is multiple, at least one target CSI report in the multiple target CSI reports is associated with multiple uplink channel resources; and the terminal feeds back the at least one target CSI report based on the plurality of determined uplink channel resources.

An operating method of a terminal in a wireless communication system may include receiving, from a base station, configuration information for repetitive transmissions of uplink data, based on the configuration information, determining a redundancy value (RV) value of the uplink data, and transmitting the uplink data based on the RV value, wherein the determining of the RV value may include determining the RV value by comparing a number of symbols configured by the base station with a number of symbols used for the repetitive transmissions of the uplink data.

The invention provides a channel state information feedback enhancement method and system based on bidirectional channel correlation, and the method is executed at a base station end, and comprises the steps: receiving a downlink channel state information semantic vector which is coded, compressed and quantized by a user end through a deep joint source channel; carrying out inverse quantization on the semantic vector to obtain an intermediate semantic vector; based on the intermediate semantic vector, retrieving a related historical uplink semantic vector from an uplink channel semantic knowledge base; performing fusion enhancement on the intermediate semantic vector and the retrieval result through an attention mechanism to generate an enhanced semantic vector; inputting the enhanced semantic vector into a decoder, and outputting a reconstructed downlink channel state information matrix; wherein the encoder, the enhancement module and the decoder perform end-to-end joint training optimization by minimizing a reconstruction error. According to the method, the semantics is enhanced at the receiving end by utilizing the correlation of the uplink and downlink channels, the feedback precision and the system robustness are remarkably improved, and the method is suitable for a frequency division duplex system.

The invention discloses a channel estimation method and device, relates to the technical field of communication, and can shorten the time of estimating an uplink channel and improve the accuracy of estimating the uplink channel. The method comprises the following steps: a terminal receives downlink reference signals of J time units; and the terminal determines time domain information according to the downlink reference signals of the J time units and reports the time domain information. And the terminal sends the first uplink reference signal. The base station determines an uplink channel according to the time domain information and the first uplink reference signal, the uplink channel is an uplink channel of J1 time units, J and J1 are both positive integers, and J is greater than J1. According to the scheme, the terminal determines the time domain information according to the downlink reference signals of the J time units, and the base station determines the uplink channels corresponding to the J1 time units through the time domain information and the first uplink reference signal. Therefore, the base station does not need to wait for the terminal to send the uplink reference signals in the J1 time units, and does not need to determine the uplink channels corresponding to the J1 time units according to the uplink reference signals.

A spatial adaptive multi-user service modulation and demodulation method suitable for various channel environments is characterized in that an uplink channel is configured with multiple paths of general carriers and multiple paths of helicopter special carriers in a frequency division mode, and the general carriers support uplink adaptive information transmission of terminals of various types and sizes in an MF-TDMA (Multimedia Frequency-Time Division Multiple Access) system; the on-satellite demodulator obtains a modulation coding mode of a burst data segment by identifying mode word information in a physical layer frame header, and demodulates a corresponding mode; the carrier special for the helicopter uses a continuous carrier mode, and multi-rate channel error correction coding and decoding under rotor wing shielding are supported in a channel interleaving mode. Downlink transmission is carried out in a fixed time slot and free time slot time division mode, and downlink information transmission for universal multi-type terminals and helicopter terminals can be supported at the same time. Compared with a common spatial modulation and demodulation method, the modulation and demodulation scheme provided by the invention can support adaptive transmission of general services of multiple types of terminals and helicopter service information on both an uplink and a downlink by using one satellite-borne modem.

The invention provides a signal transmission method, apparatus and device, a medium and a program product. The method comprises the steps of sending an access response message and an uplink measurement signal configuration signaling to a target terminal; receiving an uplink measurement signal periodically sent by the target terminal according to the uplink measurement signal configuration signaling; obtaining uplink channel quality information; the target terminal is indicated to report downlink channel quality information; determining a target main link and a target auxiliary link with the target terminal according to the uplink channel quality information and the downlink channel quality information, and sending a main link configuration signaling of the target main link to the target terminal; receiving a main link configuration completion signaling sent by the target terminal according to the main link configuration signaling; and sending a link resource configuration signaling to the target terminal through the target main link. According to the invention, the main link and the auxiliary link are determined based on the channel states of the two links, so that the resource utilization rate and the transmission reliability are effectively improved.

The application relates to the field of communication and is a space-air-ground communication resource multi-target optimization method based on a Pareto optimal solution set, which solves the problem of unreasonable communication resource allocation schemes in the prior art. The application relates to a ground Internet of Things terminal, a UAV and a low-orbit satellite, and comprises the following steps: 1. calculating uplink channel capacity from the ground Internet of Things terminal to the low-orbit satellite; 2. optimizing a target function modeling: taking the minimum uplink channel capacity of each category of Internet of Things terminal in step 1 as an optimization target; 3. iterative optimization based on an evolutionary algorithm framework; the application flexibly designs the deployment position of the UAV and the bandwidth allocation scheme among the Internet of Things devices, adopts a directional resource adjustment scheme, and optimizes the uplink channel capacity of each category of ground Internet of Things terminal through the UAV relay to the low-orbit satellite in a fair manner, so that the uplink channel capacity among the same type of Internet of Things devices is as equal as possible and the uplink channel capacity of each category of Internet of Things device is as large as possible.

Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment (UE) may receive a configuration for a sounding reference signal (SRS) resource set that includes a first SRS resource associated with a first SRS resource indicator (SRI) and a first antenna of the UE, and a second SRS resource associated with a second SRI and a second antenna of the UE. The UE may receive first downlink control information (DCI) that schedules a first uplink communication on a first uplink channel, wherein the first DCI indicates the first SRI. The UE may transmit, using the first antenna, the first uplink communication using a transmit power that is based at least in part on a weighted average of a first pathloss associated with the first antenna and a second pathloss associated with the second antenna. Numerous other aspects are described.

A terminal according to one aspect of the present disclosure includes a receiving section that receives downlink control information and a downlink shared channel scheduled by the downlink control information on a cell different from a cell for the downlink control information, and a control section that determines, on the basis of at least one of a TCI state (Transmission Configuration Indication state) list or spatial relation list configured for each cell and information notified by the downlink control information, a spatial relation or TCI state applied to an uplink channel corresponding to the downlink control information.

Apparatuses and methods for transmission of uplink channels with repetitions in a wireless communication system. A method includes receiving first information that includes a modulation and coding scheme (MCS) field associated with transmission of a physical uplink shared channel (PUSCH). The MCS field includes a number of bits, a first value of a first number of bits, from the number of bits, indicates a first number of repetitions for the transmission of the PUSCH, and a second value of a third number of bits, from the number of bits excluding the first number of bits, indicates an MCS index for the transmission of the PUSCH. The method further includes determining the first number of repetitions based on the first value; determining an MCS for the transmission of the PUSCH based on the second value; and transmitting the PUSCH with the first number of repetitions and the MCS.

A terminal according to one aspect of the present disclosure includes a control section that, when a physical uplink control channel (PUCCH) for transmission of hybrid automatic repeat reQuest acknowledgement (HARQ-ACK) information for a multicast physical downlink shared channel (PDSCH) overlaps with an uplink channel in a time domain, determines at least one channel of the PUCCH and the uplink channel, and a transmitting section that transmits the channel. According to one aspect of the present disclosure, it is possible to appropriately performs processing of the HARQ-ACK for multicast downlink data.

The application provides an information prediction method and device, a network device and a node device. The method comprises: sending service transmission prediction information of a terminal scheduled at a first time to a first node; the service transmission prediction information comprises an uplink interference prediction value and / or a channel matrix prediction value; the first time is after a second time, and the first node obtains an uplink reference signal sent by the terminal at the second time. By using the method, the first network device can send service transmission prediction information of a terminal scheduled at a first time to a first node, the first time is after a second time at which an uplink reference signal sent by the terminal is obtained, so that the first node can determine uplink channel quality according to the service transmission prediction information of the terminal scheduled at the first time, ensure that the selected MCS value can conform to the channel quality at the uplink PUSCH data service transmission time, and avoid the problem that the selected MCS value does not conform to the channel quality at the uplink PUSCH data service transmission time.

Methods, systems, and devices for wireless communications are described. In some wireless communications systems, a user equipment (UE) may receive, from a base station, an indication of a configuration for transmitting subslot-based feedback messages (e.g., via an uplink channel) associated with downlink transmissions (e.g., received via a downlink channel). In some cases, the UE and base station may generate a feedback codebook for the feedback messages according to a subslot-based codebook generation procedure. For example, the UE and base station may generate the feedback codebook based on a quantity of downlink transmission opportunities ending during each subslot of the uplink channel. The UE may then transmit, to the base station via the uplink channel, the feedback messages in accordance with the feedback codebook.

In line with development of communication systems, there is a need for an effective method for transmitting an uplink channel or signal. The disclosure relates to a fifth generation (5G) or sixth generation (6G) communication system for supporting higher date rates. More particularly, the disclosure relates to an apparatus capable of performing an Msg3 physical uplink shared channel (PUSCH) transmission by a terminal.

This application discloses a full-duplex communication processing method, apparatus, terminal, and network-side device, belonging to the field of communication technology. The method includes: a terminal receiving a first object in a first time unit, the first time unit including: a first subband supporting the reception of the first object and a second subband supporting the transmission of a second object, the first object including at least one of a downlink channel and a downlink signal, and the second object including at least one of an uplink channel and an uplink signal; the terminal sending first target feedback information for the first object, the first target feedback information being used to indicate whether the terminal can decode the first object.

A method, performed by a terminal, for receiving a downlink signal and channel in a wireless communication system comprises the steps of: receiving a synchronization signals and PBCH block (SSB) from a base station; and transmitting an uplink channel to the base station on the basis of the SSB.

The application provides an uplink control information transmission method, a receiving method, a terminal and a network device, and the method comprises the following steps: in the case that a first uplink channel carrying a first HARQ-ACK and a second uplink channel carrying a second HARQ-ACK overlap in the time domain, determining a reference bit number of the second HARQ-ACK according to the bit number of the first HARQ-ACK; and transmitting the second HARQ-ACK and the first HARQ-ACK simultaneously on the same uplink channel according to the reference bit number. The application can ensure that the terminal and the network device have consistent understanding of the bit number of the HARQ-ACK transmitted by the terminal.

To improve communication quality / throughput.SOLUTION: A terminal has: a receiving section that receives report settings for a beam report started by the terminal, wherein a component carrier (CC) to which the report settings are set and a CC corresponding to a reference signal of an object to be measured in the report settings are different from each other; and a control section that determines the CC transmitting an uplink channel for carrying the beam report on the basis of the report settings.SELECTED DRAWING: Figure 2

A transmission processing method and a terminal are provided. The transmission processing method includes: detecting, by the terminal through a first channel, first information sent by a network side device; and determining, by the terminal, a first transmission behavior of the terminal based on the detected first information. The first transmission behavior includes at least one of the following: performing or skipping uplink channel sending on a first resource; or performing or skipping downlink channel receiving on the first resource.

The present application belongs to the technical field of communications. Disclosed are an uplink information sending method, devices, and a storage medium. The method comprises: when a first resource and a muting resource overlap, transmitting, on the basis of a preset rule, first information by means of a first uplink channel in part of the first resource, wherein the first resource is a resource for transmitting the first uplink channel. In the technical solution provided in the embodiments of the present application, when a first resource and a muting resource overlap, a terminal determines, on the basis of a preset rule, the resource within the first resource that is used for transmitting first information and sends the first information to a network device, thereby ensuring that the first information is transmitted in a first uplink channel, and avoiding conflicts between the muting resource and the resource for transmitting the first information, and thus improving the efficiency and reliability of uplink information transmission.

The embodiment of the application discloses a link reestablishment method and device, relates to the field of communication, and solves the problem that data cannot be continuously transmitted and communication is interrupted due to shielding in the process of communication between a base station and a UE. The specific scheme is as follows: when the UE detects that a first downlink beam pair set is invalid, the UE sends a first uplink signal to the base station by using a first uplink beam pair set through a first uplink channel at an n moment, and the first uplink signal is used to inform the base station that the first downlink beam pair set is invalid; the UE detects a first downlink signal sent by the base station through a first downlink channel by using a second downlink beam pair set at an n+k moment, obtains a first detection result, and the first downlink signal is used to confirm that the base station receives the first uplink signal. The embodiment of the application is used in the process of link reestablishment.

A method for sending a sounding reference signal (SRS) includes: sending SRS configuration information for uplink channel state information (CSI) acquisition to a terminal, the SRS configuration information including one or more SRS resource sets, the one or more SRS resource sets being associated with one or more transmission and reception points (TRPs) for an uplink physical uplink shared channel (PUSCH) transmission, and each SRS resource set comprising at least one SRS resource; and dynamically adjusting a resource configuration of the one or more SRS resource sets according to target information.

This application provides a method and apparatus for sending and receiving information, which can be applied to vehicle-to-everything (V2X), LTE-V, V2V, etc., or to fields such as D2D, intelligent driving, and intelligent connected vehicles. When the uplink channel corresponding to the first uplink information and the uplink channel corresponding to the second uplink information overlap completely or partially, the terminal sends the higher-priority information between the first and second uplink information according to priority order. This fully considers the importance of different uplink and sidelink information and the tolerance for latency, reducing the probability of communication errors while maximizing the reliability of uplink transmission in scenarios where Uu links and sidelinks coexist.

A coherent transmitter (100, 200) for use in a time division multiple access (TDMA) system is operated in multiple states to enable coherent burst transmission. In an OFF state, the transmitter (100, 200) generates a dummy laser output (fd) from either a dummy laser (102) or an active laser (52) tuned to a dummy frequency different from an active frequency (fa), thereby maintaining thermal and bias stability without adding excess power on an upstream channel (22). In an ON state, the active laser (52) produces an active laser output (fa) that is modulated by a quad-parallel Mach-Zehnder (QPMZ) modulator (60) to transmit data. A thermoelectric cooler (TEC) (58) stabilizes laser temperatures, and a variable optical attenuator (VOA) (54) controls output power. The transmitter (100, 200) is suitable for an optical network unit (ONU) (14) in a passive optical network (PON) (10) communicating with an optical line terminal (OLT) (12).

The disclosure relates to a 5G or 6G communication system for supporting a higher data transmission rate. A method and apparatus for transmission and reception of an uplink signal are provided. The method includes receiving second information that indicates a hybrid automatic repeat request-acknowledgement (HARQ-ACK) feedback mode, resolving overlapping for uplink channels associated with a same value of a control resource set (CORESET) pool index parameter, and in case that the second information indicates the HARQ-ACK feedback mode as joint, resolving overlapping for uplink channels associated with different values of the CORESET pool index parameter. The invention provides an enhanced uplink signal transmission method.