5012results about "Transmission rate adaptation" patented technology

The invention provides a task load scheduling optimization method and system for distributed network nodes, and the method comprises the steps: determining a task transmission path between the distributed network nodes according to historical task congestion data and a real-time link load prediction result; adjusting a modulation coding strategy in a task transmission process according to the channel quality parameter on the task transmission path to obtain an adjusted modulation coding strategy; according to an energy consumption demand corresponding to the adjusted modulation coding strategy, combining load distribution of each communication link and each node on the task transmission path to generate a voltage frequency adjustment instruction corresponding to the distributed network node; performing collaborative optimization on the task transmission path, the channel quality parameter and the voltage frequency regulation instruction to generate a task load scheduling strategy; according to the invention, through collaborative optimization of dynamic path selection, adaptive modulation coding adjustment and precise energy consumption regulation, the transmission reliability, energy efficiency balance and system stability of the distributed network in a high dynamic environment are improved.

Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment (UE) may receive, from a base station, a first physical downlink shared channel (PDSCH) transmission transmitted using a first modulation and coding scheme (MCS). The UE may transmit, to the base station, feedback based at least in part on decoding the first PDSCH transmission, wherein the feedback includes an acknowledgement (ACK) or negative acknowledgement (NACK) and a channel state information (CSI) report that includes at least an indication of a second MCS based at least in part on a target block error rate (BLER) and a target charging rate for energy harvesting. Numerous other aspects are described.

Systems, methods, and instrumentalities are described herein regarding power control and link adaptation for cross-division duplex (XDD). A wireless transmit / receive unit (WTRU) may receive a grant associated with transmission of an uplink (UL) signal. The grant may indicate a first set of resource blocks (RBs). The WTRU may determine a frequency gap (FG) between the first set of RBs and a reference RB. The WTRU may adjust one or more transmit (Tx) parameters based on the determined FG. When the determined FG is less than a pre-defined threshold, the WTRU may reduce one or more of a transmit power or a modulation coding scheme (MCS) level associated with transmission of the UL signal scheduled by the grant. The WTRU may transmit the UL signal using the adjusted one or more Tx parameters.

The invention relates to the technical field of vehicle network control, in particular to an efficient vehicle network control system and method based on CAN-FD, and the system comprises a data transmission optimization module, a bandwidth management module, a signal scheduling control module, an encryption security control module and an anomaly detection module. In the invention, the bit rate of a data frame, the length of a data packet and the proportion of filling bytes are optimized, the transmission efficiency is improved, the bandwidth occupied by invalid data is reduced, a priority screening mechanism is called, the stable transmission of high-priority signals is ensured, the bandwidth allocation is adjusted based on the flow state and node frequency monitoring, the burst flow congestion is relieved, and the resource allocation is balanced; in combination with arbitration priority and bus conflict state, non-emergency signal priority is optimized, key data blocking risk is reduced, encryption and integrity verification are adopted, data security is ensured, tampering and leakage are prevented, data abnormity score and detection are introduced, abnormal data are screened, identification capability is improved, and network potential safety hazard is reduced.

The invention relates to an intelligent power grid communication optimization method based on HPLC and HRF dual-mode communication, and the method is characterized in that the method comprises the following steps: S1, obtaining power grid communication data, and carrying out the preprocessing of the data; s2, according to the preprocessed intelligent power grid communication data, a feature extractor based on a deep neural network automatically extracts two-channel time-frequency domain features, feature importance of different modes is dynamically weighted through an attention mechanism, and a unified channel state matrix CSM after fusion is obtained; s3, constructing a routing strategy model based on reinforcement learning, and obtaining an optimal path decision according to the CSM matrix, the power grid network topology and the service priority label; s4, according to the path obtained by the optimal path decision, adaptive modulation coding is adopted to obtain an optimal modulation coding scheme and a dynamic adaptive channel condition; and S5, performing communication according to the optimal modulation coding scheme and the dynamic adaptive channel condition. According to the method, the communication state sensing capability in a complex scene is remarkably improved.

A method of operating a user equipment (UE) in a wireless communication system is provided. The method comprises receiving system information block 1 (SIB1) from a base station (BS), separately determining, based on the SIB1, whether an intra-slot frequency hopping (FH) is enabled and whether a time domain orthogonal cover code (OCC) is enabled, performing a random access on the BS, and transmitting, to the BS, a physical uplink control channel (PUCCH) for a hybrid automatic repeat request (HARQ) feedback of a message 4 (Msg4) or a message B (MsgB) of the random access based on whether the intra-slot frequency hopping is enabled and whether the time domain OCC is enabled.

Proposed are a method for performing federated learning in a wireless communication system, and an apparatus therefor. The method performed by a terminal may comprise the steps of: generating a Q-ary code including i) a restriction-based system part and ii) a parity part by coding restriction-based Q-ary information; determining, on the basis of a preset method, the number T of transmissions of the parity part of the Q-ary code; on the basis of specific channel information from among channel information between a plurality of terminals and a base station participating in the federated learning, allocating power to the system part and T parity parts; and transmitting, on the basis of the allocated power, the system part and the T parity parts to the base station.

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.

The invention relates to the technical field of remote control, in particular to an intelligent device remote cooperative control method and system based on the Internet of Things, and the method comprises the following steps: monitoring and adjusting the CPU utilization rate and memory usage of an intelligent device based on an Internet of Things platform, optimizing the data collection and network resource distribution, and improving the intelligent device remote cooperative control efficiency. By analyzing equipment performance and a network load balance index, equipment connection priority ranking and task load management are realized, and task execution and connection frequency is dynamically adjusted, so that real-time task requirements are met, and system efficiency is improved. According to the method, the performance index of the equipment is monitored in real time, the data transmission interval is dynamically adjusted, the data processing speed is remarkably increased, resource waste is reduced, efficient use of network resources is ensured through real-time load analysis and optimization of network nodes, the problem of data delay caused by network congestion is avoided, and in the aspect of equipment connection management, the data transmission efficiency is improved. An intelligent priority decision mechanism allows the key device to quickly access the network in an emergency.

The embodiment of the invention discloses a modulation and coding strategy indication method and a corresponding device. The present application is applied to a wireless local area network system that supports one or more of an IEEE 802.11 ax next generation Wi-Fi protocol (e.g., 802.11 be, Wi-Fi 7 or EHT), an IEEE 802.11 be next generation Wi-Fi protocol (e.g., 802.11 bn, Wi-Fi 8, UHR), a Wi-Fi AI, a millimeter wave (mmWave), an ultra wide band (UWB), and a sensing. The method comprises: generating a physical layer protocol data unit (PPDU), the PPDU comprising a first field and a second field, the first field being used for indicating a first modulation and coding policy (MCS) combination, and the second field being used for indicating the number of spatial streams corresponding to one or more MCSs in the first MCS combination; the PPDU is sent; the bit overhead can be saved.

The disclosure pertains to methods and apparatus for enabling single DCI scheduling of multiple cells. A method implemented in a wireless transmit / receive unit (WTRU), includes receiving, by the WTRU, a single downlink control information (DCI). The method additionally includes determining, by the WTRU, scheduling of multiple cells based on the single DCI. The method also includes performing wireless communications, by the WTRU, based on the determination.

Disclosed are a method and device for performing random access in a wireless communication system. The method for performing, by a terminal, a random access procedure in a wireless communication system, according to one embodiment of the present disclosure, may comprise the steps of: receiving, from a base station, information about a modulation and coding scheme (MCS) index group for a message 3 physical uplink shared channel (Msg3 PUSCH), on the basis that repetition transmission for the Msg3 PUSCH is configured, the MCS index group comprising at least one MCS index value; receiving, from the base station, MCS information indicating a specific MCS index value among the at least one MCS index value; and transmitting the Msg3 PUSCH on the basis of the specific MCS index value indicated by the MCS information.

There is disclosed a method for transmitting a physical uplink shared channel (PUSCH) to a base station by a user equipment in a wireless communication system. The user equipment may receive a first physical downlink control channel (PDCCH) including first downlink control information (DCI) from the base station, and release the activated configuration for repetitive transmission of the PUSCH based on the received DCI.

Certain aspects of the present disclosure provide techniques and apparatus for transmit-power-aware rate adaptation in wireless communications. An example method of wireless communication includes determining a transmit power associated with a first signal. The method further includes determining a first information transfer rate associated with the first signal based at least in part on the determined transmit power. The method further includes transmitting the first signal at the transmit power based at least in part on the first information transfer rate.

The invention relates to a satellite link dynamic regulation and control device and method. The device comprises an upper-layer strategy scheduler, a middle-layer predictor and a lower-layer real-time controller. And the upper-layer strategy scheduler obtains a link state prediction result output by the middle-layer predictor and a current link state reported by the lower-layer real-time controller, selects an initial strategy, a dynamic regulation and control strategy or a conventional communication recovery strategy according to task requirements, and issues a link parameter configuration instruction. And a middle-layer predictor performs link state prediction by using a pre-trained random forest model based on an input feature set extracted in a historical sliding window. And the lower-layer real-time controller executes transmission power and modulation coding scheme adjustment according to the instruction, executes emergency regulation and control when the link margin is abnormal, and gradually adjusts to a conventional communication mode after the link is recovered. According to the invention, dynamic prediction and rapid adaptive regulation and control of the satellite link can be realized.

A wireless device that supports sidelink communication may transmit a sidelink transmission in a first set of one or more slots. The wireless device may measure a received signal strength indicator (RSSI) in a second set of slots, the RSSI indicative of a channel busy ratio (CBR) over a combined set of slots including both the first set of one or more slots and the second set of slots and transmit the sidelink communication based on the CBR associated with the combined set of slots.

Certain aspects of the present disclosure generally relate to techniques for selecting a base graph to be used for wireless communications. Selection can be based on a variety of factors. A base graph can be used to derive a low-density parity-check (LDPC) code used for encoding a retransmission of an original transmission. An exemplary method generally includes selecting, based on a modulation and coding scheme (MCS) and a resource allocation (RA) for transmitting a codeword, a base graph (BG), from which to derive a low density parity check (LDPC) code for use in encoding data bits in the codeword (e.g., encoding data bits of a bitstream such that some redundant bits are included in the codeword), encoding the data bits to generate the codeword using the LDPC code derived from the selected BG, and transmitting the codeword using the MCS via resources of the RA.

The invention relates to the technical field of Internet of Things communication, and provides a low-power-consumption semiconductor communication method based on Internet of Things, which comprises the following steps: acquiring temperature, electromagnetic interference intensity and signal attenuation coefficient data through a multi-mode sensor node, and generating an original environment data set; performing dynamic noise classification on the original environment data set, dividing noise levels and marking noise types; performing hierarchical processing on the data by adopting a multi-stage self-adaptive noise reduction algorithm to generate a preprocessed data set; extracting dynamic characteristic parameters of a communication channel, constructing an energy efficiency prediction model, and dynamically calculating a combination of optimal transmitting frequency, power and modulation order; generating a multi-system modulation signal, superposing a dynamic coding strategy, and adjusting the symbol block length and the error correction code density; and the receiving end analyzes the signal quality index, feeds back the signal quality index to the transmitting end to optimize the parameters and updates the energy efficiency prediction model. According to the invention, the energy efficiency ratio and the anti-interference capability of the Internet of Things communication system can be improved.

A base station and a user equipment (UE) may perform a dynamic waveform switching for physical uplink shared channel (PUSCH) transmissions. The base station may send a configuration for dedicated waveform switching associated with the PUSCH transmissions, and transmit, to the UE, an indication of a first waveform for transmitting the PUSCH, the indication being independent of the bandwidth part (BWP) configuration for the PUSCH. Based on the configuration for the dedicated waveform switching associated with the PUSCH transmissions and the indication of the first waveform for the PUSCH transmission, the UE may transmit the PUSCH, at least one PUSCH repetition, and at least one retransmission of the PUSCH, and the base station may receive the PUSCH, at least one PUSCH repetition, and at least one retransmission of the PUSCH.

Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a network node may receive a group common downlink control information transmission comprising a cross-link interference (CLI) measurement request indication. The network node may determine a channel state information interference measurement during an interference measurement occasion, wherein the interference measurement occasion is indicated by the CLI measurement request indication. Numerous other aspects are described.

Methods, systems, and devices for wireless communications are described. Some wireless communications systems may support cross link interference (CLI) mitigation in full-duplex operations. For example, a first user equipment (UE) may encode and precode a first portion of a message according to a first modulation and coding scheme (MCS) and a first precoding matrix and a second portion of the message according to a second MCS and a second precoding matrix. The first precoding matrix may be based on a first communication link between the first UE and a network entity and the second precoding matrix may be based on the first communication link and a second communication link between the first UE and a second UE. The first UE may transmit the first portion of the message and the second portion of the message via beams associated with respective precoding matrices.

An operation method of a terminal in a communication system may include: selecting one or more control elements among a plurality of control elements included first UCI in consideration of a size of an uplink resource; generating multiplexed UCIs by multiplexing second UCI with the one or more control elements; and transmitting the multiplexed UCIs to a base station by using the uplink resource.

The invention relates to an ultra-high-speed large-flow Ethernet data generation system and method. The system comprises a software unit and an FPGA unit. The software unit is used for generating stream template data and issuing the stream template data to the FPGA unit; the stream template data comprises stream template configuration items and dynamic configuration parameters; the flow template configuration item comprises protocol header information, scheduling configuration information, frame length configuration information and load configuration information; the dynamic configuration parameters comprise dynamic jump configuration information, routing table configuration information and the like; and the FPGA unit is used for storing, reading and calculating the issued stream template data, realizing intra-frame jump value calculation, message and IP head checksum generation, Ethernet frame construction and transmission. Through combination of software and hardware methods, the demand quantity of hardware resources can be reduced, the consumption of logic resources of the FPGA unit can be reduced, the phenomena of high and low speed operation environments, network congestion and the like in the existing network can be simulated, and diversified simulation environments can be provided.

The invention discloses a satellite signal modulation recognition method based on an enhanced multi-scale feature attention network, and the method comprises the steps: obtaining a to-be-recognized satellite signal, inputting the to-be-recognized satellite signal into a trained enhanced multi-scale feature attention network, and obtaining a satellite signal modulation recognition result. The training process of the enhanced multi-scale feature attention network comprises the following steps: acquiring a satellite communication data set, and performing sample expansion to obtain an augmented sample; performing noise removal processing and feature extraction on the augmented sample to obtain denoised data features; inputting the de-noised data features into a global context sensing module, extracting modulation features of different frequencies and time scales, and performing feature fusion on the modulation features and the de-noised data features to obtain fusion features; and performing feature reconstruction and channel recovery on the fusion features, inputting the fusion features into a Softmax classifier, performing classification prediction, calculating classification loss, and optimizing network parameters through the classification loss. Under a complete blind recognition scene, the accuracy of a satellite signal modulation recognition result can be obviously improved.

The invention relates to the technical field of low earth orbit satellites, and discloses a method and equipment for improving the signal-to-noise ratio of a low earth orbit satellite signal, and the method comprises the steps: carrying out the multi-dimensional signal collection and processing of a received signal of a low earth orbit satellite downlink, and obtaining a signal tensor model; executing structured decomposition based on the signal tensor model to obtain a channel factor matrix group; performing multi-stage sequential processing according to the channel factor matrix group to obtain low-orbit satellite channel state information; inputting the low-orbit satellite channel state information into an interference identification module for feature extraction and interference type analysis to obtain an interference type and probability distribution thereof; performing multi-dimensional adaptive filtering on the received signal to obtain a target signal; and performing modulation coding and beam forming parameter joint optimization on the target signal and the low-earth-orbit satellite channel state information to obtain a low-earth-orbit satellite communication link, thereby solving the problem of large fluctuation of the signal-to-noise ratio in a satellite rapid moving scene, and realizing balance of power efficiency and anti-interference performance at the same time.

The present disclosure relates to a communication method and system for converging a 5th-Generation (5G) communication system for supporting higher data rates beyond a 4th-Generation (4G) system with a technology for Internet of Things (IoT). The present disclosure may be applied to intelligent services based on the 5G communication technology and the IoT-related technology, such as smart home, smart building, smart city, smart car, connected car, health care, digital education, smart retail, security and safety services. Disclosed is a method of operating a non-terrestrial network comprising the step of: configuring a Timing Advance, TA, value comprising a cell-specific common TA and a residual TA, wherein the cell-specific common TA is broadcast by a satellite in connection with a particular cell.

Certain aspects of the present disclosure provide a method for wireless communications at a wireless node. The wireless node may decide whether to perform probabilistic shaping based on single-bit level shaping or multiple-bit level shaping on a bit sequence of a signal. The bit sequence includes a set of bits. The wireless node may make this decision based on a modulation order and / or a modulation and coding scheme (MCS) index value. The wireless node may perform the probabilistic shaping on the bit sequence, in accordance with the decision.

A communication method and device are applied to the technical field of communication, can be applied to a wireless local area network system of a next generation Wi-Fi protocol of IEEE 802.11 ax, such as 802.11 be, Wi-Fi 7 or EHT, and 802.11 series protocols such as 802.11 bn, Wi-Fi 8, UHR, Wi-Fi AI, millimeter wave (MMW) and the like, and can also be applied to a WPAN system supporting UWB, a sensing system and the like. A first communication device generates a PPDU and transmits the PPDU. The second communication device receives the PPDU and analyzes the PPDU. The PPDU comprises first indication information, the first indication information can be used for indicating a first modulation mode set and a coding rate, and the first modulation mode set is one of N modulation mode sets divided based on W modulation modes. The Q modulation modes in the first modulation mode set are used for modulating the PPDU.

Methods and apparatuses for transmitting and receiving information of different priorities. A method of operating a UE includes receiving a first PDCCH providing a first DCI format. The first DCI format schedules a reception of a PDSCH, includes an MCS field, and includes a priority indicator field. The method further includes determining an MCS table, from a first predetermined MCS table or a second predetermined MCS table, based on a value of the priority indicator field in the first DCI format; determining a modulation order and a code rate from the MCS table based on a value of the MCS field; receiving a TB in the PDSCH according to the modulation order and the code rate; and determining a priority of HARQ-ACK information in response to the TB reception based on the value of the priority indicator field in the first DCI format.