232 results about "Uplink channel" patented technology

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 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.

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.

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.

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.

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.

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).

This invention provides a method, system, and medium for channel prediction in a massive MIMO TDD system using a base-extended extrapolation model. The method includes: modeling the uplink channel using a base-extended model, representing the uplink channel as a small number of unknown BEM coefficients, and reconstructing the uplink channel by estimating these unknown BEM coefficients; representing the estimated uplink channel as a linear combination of a discrete ellipsoidal BEM and its corresponding coefficients to reduce the complexity of downlink channel prediction; predicting the coefficients of a downlink time-varying DPS-BEM, and using the predicted DPS-BEM coefficients for downlink channel recovery. This invention alleviates the channel aging problem in massive MIMO TDD systems.

An uplink frequency selection scheduling method and apparatus, and a storage medium. The uplink frequency selection scheduling method comprises: acquiring a first uplink signal-to-interference-plus-noise ratio (SINR) of each frequency-domain resource block (RB) that is measured on the basis of a sounding reference signal (SRS), and a second uplink SINR of each RB that is measured on the basis of a demodulation reference signal (DMRS); obtaining uplink channel quality data of the RB on the basis of the first uplink SINR and the second uplink SINR; and determining a frequency selection threshold on the basis of the uplink channel quality data, and determining a target RB on the basis of the uplink channel quality data and the frequency selection threshold.

This disclosure provides an uplink channel configuration method, an uplink channel transmission method, a network-side device, and a terminal. The uplink channel configuration method is applied to a network-side device and includes: sending indication information to a terminal, where the indication information is used to indicate an uplink channel related transmission parameter, the transmission parameter corresponds to N uplink channels and / or at least two target transmissions of a target uplink channel, and N is an integer greater than 1.

The invention provides a performance optimization method of an electric power 5G-Advanced communication and inductance integrated wireless control system, and belongs to the technical field of electric power 5G-A networks. Comprising the following steps: through orthogonal reference signal switching, respectively carrying out transmitting and receiving channel calibration on a base station and a first straight-through user side, and generating a corresponding calibration matrix; jointly estimating an uplink channel and an interference channel of the cellular user and the second straight-through user by using the orthogonal DMRS; compensating an estimation channel based on the calibration matrix, constructing an interference covariance matrix and generating an MMSE precoding vector; respectively mapping downlink data of a cellular user and straight-through data of a straight-through user to an airspace, and combining the calibration matrix and the precoding vector to carry out airspace filtering processing to generate a synchronous transmission signal; and transmitting the synchronous transmission signal in the same resource block, and performing interference suppression decoding on the basis of the compensated channel by a receiving end. According to the method, the performance of the wireless control system can be optimized by combining subcarrier-level channel compensation with dynamic construction of the spatial filtering matrix.

Provided are a communication method and device, a network device sending first information and second information to a terminal device, the first information being used for indicating a plurality of reference signal resources, the second information being used for indicating the network device to receive the plurality of reference signal resources by using the same beam, and / or sending the plurality of reference signal resources to the terminal device. The terminal equipment adopts different beams to send a plurality of reference signal resources; and the terminal equipment sends the plurality of reference signal resources by adopting different beams based on the first information and the second information, correspondingly, the network device receives a plurality of reference signal resources by using the same beam based on the first information and the second information, the plurality of reference signal resources being used for determining the first beam of the terminal device. Compared with determining the sending beam of the terminal equipment by using the reciprocity of the uplink and downlink channels, the determined sending beam of the terminal equipment is more suitable for the environment of the uplink channel, and the accuracy is improved.

Provided are a data sending method and apparatus, a data receiving method and apparatus, a first node, and a second node. The data sending method includes that in the case of the inactive state or in the case where the radio resource control state is the idle state, data is sent to a second node through a first uplink channel; and that downlink control channels in a first search space are detected.

The invention discloses a 5G indoor high-precision positioning method in a metal environment, and the method comprises the steps: dividing a positioning service region in a ship into a plurality of point locations, traversing ship cabins and channels through user equipment, and collecting the uplink and downlink signal fingerprint information of a service cell where each point location is located and a plurality of adjacent cells; uplink fingerprint positioning: sending a sounding reference signal and a demodulation reference signal for uplink channel estimation to a serving cell and a neighbor cell base station, uploading the collected data to a cloud by the base station, and calculating the position information of the user equipment by a cloud positioning algorithm through a weighted average method; and downlink fingerprint positioning: carrying out data acquisition on downlink positioning reference signals, broadcast signals and demodulation reference signals of the service cell and the adjacent cell, uploading the data to a cloud end for processing, and calculating position information of the user equipment through a weighted average method by a cloud end positioning algorithm based on the received fingerprint information. The method has the advantages of high positioning precision, low deployment cost, high positioning stability and the like.

This application discloses a method, apparatus, device, and storage medium for configuring a transmission strategy, relating to the field of wireless communication. The method, applied to a terminal device, includes: sending configuration signaling to a first terminal, the configuration signaling including a transmission strategy for an uplink channel; wherein the transmission strategy is used to determine a first transmission resource and a second transmission resource for two adjacent repeated transmissions of the uplink channel, where different transmission beams are used to transmit to different transmission points (TRPs) of the same network device; the first transmission resource and the second transmission resource have a beam switching time for switching beam directions; the first transmission resource corresponds to the earlier transmission opportunity among two adjacent transmission opportunities for uplink channel transmission; and the second transmission resource corresponds to the later transmission opportunity among two adjacent transmission opportunities for uplink channel transmission. This method can introduce beam switching time into the uplink channel transmission.

Embodiments of the present application provide a channel state information measurement method and device, electronic equipment and storage medium. The method comprises: a primary cell base station configuring a first set of CSI resource information for a target terminal; wherein the target terminal is a terminal in the primary cell that is pre-selected to require joint multi-point coordinated transmission with a secondary cell base station; the primary cell base station sends first reference signal configuration information to the secondary cell base station, so that the secondary cell base station generates a first CSI reference signal based on the first reference signal configuration information, and sends the first CSI reference signal to the target terminal; the primary cell base station receives a first CSI feedback signal sent by the target terminal, and obtains a downlink channel measurement result between the secondary cell base station and the target terminal based on the first CSI feedback signal. Compared with a scheme in which uplink channel measurement results are used to replace downlink channel measurement results, the multi-point coordinated transmission technology can enhance the improvement effect on the cell edge throughput and the cell edge user spectral efficiency.

According to one aspect of the present disclosure, a method performed by a user equipment in a wireless communication system is provided, comprising: receiving a first configuration message configuring inter-node carrier aggregation transmitted by a first node, determining resource configuration for transmitting uplink control information using an uplink channel.

Disclosed are a downlink channel prediction method, apparatus, device, medium and program product, applied to an access point (AP) in a wireless network, the wireless network including the AP and a site (STA) associated therewith, the method comprising: obtaining training data, the training data comprising first uplink data and a first sample tag, the first uplink data is used for determining first uplink channel state information UL CSI, and the first sample label is first real downlink channel state information DL CSI acquired through a channel detection process; training a basic model based on the training data to obtain a trained first target model, a loss function of the basic model being determined based on a first prediction DL CSI output by the basic model and a first sample label; acquiring second uplink data sent by the STA, wherein the second uplink data is used for determining second UL CSI; and inputting the second UL CSI into the first target model to perform downlink channel prediction processing, and generating a second predicted DL CSI, thereby improving the reliability and effectiveness of downlink channel state information acquisition.

The invention discloses a communication method, apparatus and device, a chip, a storage medium, a product and a program. The method comprises the following steps: a terminal device sends an uplink channel and / or an uplink signal to a first network device by using one or more spatial filters; the first network equipment is network equipment which does not support downlink transmission; the uplink channels and / or uplink signals sent by the one or more spatial filters are used by the first network device to determine a first TA value of the first network device; and the terminal device receives first information sent by a second network device, the first information being used for indicating the first TA value, and the first TA value being used for uplink transmission between the terminal device and the first network device.

The invention discloses a 5G network ultra-far coverage method, system and device for marine economy and a medium, and belongs to the technical field of wireless communication, and the method comprises the steps: building a geometric propagation relation based on the earth curvature according to the hanging height of an antenna and the height of a terminal device, and calculating a sight distance coverage distance through a geometric figure formed by a base station antenna, a terminal and the earth center; adaptively selecting a working frequency band according to the sight distance coverage distance and the service bandwidth requirement, determining an antenna gain requirement and a beam width requirement according to the wavelength characteristic of the working frequency band, and selecting an antenna; when a time division duplex system is adopted, the cyclic prefix length and the guard interval length are configured according to the propagation time delay so as to expand the coverage distance; and when the frequency of the working frequency band is relatively high, a multi-cell joint receiving and uplink channel quality enhancement technology is configured. According to the method, the sight distance coverage range is accurately calculated by establishing the geometric propagation model based on the earth curvature, and ultra-long-distance coverage of the sea area is realized through frequency band antenna collaborative optimization and frame structure parameter configuration.

Apparatus, methods, and computer-readable media for multiplexing of overlapped uplink channel transmission repetitions are disclosed herein. A user equipment (UE) may determine whether a first subset of a first set of uplink channel transmission repetitions overlaps with a downlink transmission and determine whether to transmit a second subset of the first set of uplink channel transmission repetitions when the first subset overlaps with the downlink transmission. In some aspects, the second subset includes one or more uplink channel transmission repetitions that do not overlap with the downlink transmission. The UE may transmit, to a base station over an uplink channel, a second set of uplink channel transmission repetitions having the first subset and the second subset of the first set of uplink channel transmission repetitions when the second subset is determined to be transmitted. Thus, the reliability of uplink repetitions can be increased.

This application discloses a method, apparatus, and terminal for determining power control PC parameters, belonging to the field of communication technology. The method includes: a terminal receiving common beam information, the common beam information including N TCI status information; when the TCI status information is associated with or contains PC parameters, the terminal determines the PC parameters of the uplink channel using the TCI status information as the PC parameters associated with or contained in the TCI status information; and / or, when the TCI status information is not associated with or does not contain PC parameters, the terminal determines the PC parameters of the uplink channel using the TCI status information according to target parameters; the target parameters include at least one of the following: PC parameters included in the configuration information of the uplink channel; PC parameters associated with the uplink channel; default PC parameters agreed upon by the network configuration or protocol; PC parameters included in the spatial relationship information; and PC parameters indicated by the downlink control information for scheduling the uplink channel.