17results about How to "Reduce signaling overhead" patented technology

A cell switch-off method, a terminal device, a network device, and a storage medium, used for reducing the signaling overhead of switching off a first cell, such that the network device achieves fast energy saving. The method comprises: a terminal device receives an indication message sent by a network device, the indication message being used for indicating that the network device will close a first cell.

This invention belongs to the field of mobile communication technology and discloses a RIS-assisted high-speed railway tunnel communication resource scheduling method and system. By acquiring real-time train location information, it dynamically judges and selects direct links or RIS-assisted links to adapt to changes in the tunnel propagation environment, effectively alleviating non-line-of-sight transmission problems caused by tunnel obstruction and improving the continuity and stability of communication links. When an auxiliary link is selected, the RIS target phase configuration is determined based on real-time location information, eliminating the need to frequently acquire full instantaneous channel information, reducing computational complexity and signaling overhead, and improving engineering practicality. Based on the selected link type and channel state information, the achievable rate of each service flow is determined, the resource amount required for its QoS requirements is estimated, and the scheduling priority index is calculated by combining the service flow priority weights. Transmission resources are allocated within available resources, taking into account the QoS requirements of multiple services and resource utilization efficiency, giving full play to the coverage advantages of RIS assistance, and ensuring stable transmission of multiple services in tunnel scenarios.

The invention discloses a self-adaptive multi-path redundant data transmission method and device based on multi-strategy configuration. The method comprises the following steps of: pre-configuring a logic table for defining a service type and transmission logic; obtaining service data, querying the logic table according to the service type identifier to determine the data copy number and the optimal port combination, and copying the data according to the data copy number and the optimal port combination; a multi-port connection state is maintained by a double-frequency dynamic mechanism, and the mechanism is switched to high-frequency keep-alive when service data exists and is recovered to low-frequency keep-alive when no service exists; and selecting an available port for data replication and sending the available port based on a preferred port combination and a real-time port connection state in the logic. According to the invention, differentiated redundancy transmission can be carried out according to service importance, the real-time performance and signaling overhead of link state detection are balanced through a double-frequency keep-alive mechanism, and the data transmission reliability and the resource utilization rate in a heterogeneous network environment are improved.

This application provides a communications method and apparatus. The method includes: receiving neighboring cell reporting indication information from a network device; and determining, based on a target cell obtained through measurement and the neighboring cell reporting indication information, whether to report a cell global identifier (CGI) of the target cell to the network device. According to the communications method provided in this application, during maintenance of a neighboring relation table, a terminal device can selectively report, based on an indication of the network device, only a CGI of a target cell that meets a requirement, to reduce unnecessary reporting, reduce energy consumption of the terminal device, and reduce signaling overheads.

This application provides a communication method and a related device that are related to data transmission in vehicle-to-everything. The method includes: A terminal device obtains a first parameter value of an uplink and a second parameter value of a sidelink; and the terminal device determines, based on a comparison between the first parameter value and the second parameter value, to transmit to-be-transmitted uplink data or to-be-transmitted sidelink data. Through implementation of this method, a vehicle-mounted terminal device in the vehicle-to-everything can better satisfy uplink and sidelink transmission requirements.

Disclosed are a beam switching method and apparatus, relating to the technical field of wireless communications, and used for reducing beam switching time and reducing the signaling overhead of switching. The method comprises: determining a beam that needs to be switched, and obtaining the beam identifier of a switched beam and physical random access channel (PRACH) resource indication information; and after the switching of the beam is completed, transmitting, to a network device on the time frequency resource of the switched beam indicated by the PRACH resource indication information, a PRACH signal used for indicating that the switching of the beam is completed. By means of the beam switching method, a beam switching process does not need to transmit an RRC signaling to the network device, and does not need to wait to establish an RRC connection with the network device, thereby being capable of reducing the beam switching time and simultaneously reducing the signaling overhead of switching.

UE comprises: on the basis that transmission of first HARQ-ACK information overlaps a downlink symbol in a first slot in which the transmission of the first HARQ-ACK information for first SPS PDSCH reception is scheduled, deferring the transmission of the first HARQ-ACK information to a second slot: in the second slot in which transmission of second HARQ-ACK information for PDSCH reception, based on first downlink control information (DCI), is scheduled, determining a first HARQ-ACK codebook including the first HARQ-ACK information and the second HARQ-ACK information; receiving second DCI for triggering retransmission of the first HARQ-ACK codebook; and transmitting, on the basis of the second DCI, a second HARQ-ACK codebook in a third slot that is subsequent to the second slot. The second HARQ-ACK codebook does not include the first HARQ-ACK information but includes the first HARQ-ACK information.

A system and method for artificial intelligence (AI) and machine learning (ML) based channel state information (CSI) prediction is disclosed. The method includes receiving, by a user equipment (UE), a CSI reference signal (RS) from a base station; storing, by the UE, a series of CSI measurements corresponding to the received CSI-RS; receiving, by the UE, a CSI reporting configuration, the CSI reporting configuration including an indication that an artificial intelligence machine learning (AIML) CSI prediction is applied; in response to receiving the indication that the AIML CSI prediction is applied, generating, by the UE, a predicted CSI based on the stored CSI measurements using a trained AIML model; and transmitting, by the UE, the predicted CSI to the base station.

Disclosed in the present application are a method and device used in a communication node for wireless communication. A communication node determines that wireless connection failure occurs in a first cell and generates a first failure message; transmits a first signaling when a first set of conditions is satisfied; transmits a second signaling when the set of first conditions is not satisfied; and receives a third signaling. The first signaling is used to initiate wireless connection recovery for the first cell, and the first signaling comprises a first failure sub-message; the first failure message comprises the first failure sub-message; the second signaling is used to request radio resource control re-establishment; the first set of conditions comprises a phrase determining that the wireless connection failure occurs in the first cell; the third signaling is used to update the wireless connection; when the set of first conditions is satisfied, the first signaling is used to trigger the third signaling, and when the set of first conditions is not satisfied, the second signaling is used to trigger the third signaling.

Embodiments of this application provide a communication method and a related device. The method includes: receiving, by a first node, a data packet from a second node, where the data packet includes first indication information, and the first indication information includes a logical channel identity LCID corresponding to the data packet; or the data packet includes second indication information, and the second indication information includes indication information of an access traffic or indication information of a backhaul traffic; or receiving, by the first node, third indication information, where the third indication information indicates a correspondence between an RLC layer entity and an upper protocol layer entity of an RLC layer of the first node; and delivering, by the first node, the data to an upper protocol layer of the RLC layer of the first node based on the first indication information, the second indication information, or the third indication information. Implementation of the method can enable a network device to accurately distinguish between the backhaul traffic and the access traffic, thereby improving information processing efficiency of an integrated access and backhaul network.

The application discloses an encoder training method based on decoder side assistance, a feedback method, a terminal device, a network device and a system. The method comprises the following steps: a terminal device acquires decoder side assistance training data; the terminal device encodes target channel state information in a local training data set to obtain feedback load, and reconstructs the feedback load by using the decoder side assistance training data to obtain reconstructed channel state information; finally, a loss function constructed by using the target channel state information and the reconstructed channel state information is used to train an encoder to obtain a trained encoder. The application can make the encoder more adaptive to the channel characteristics of the terminal device, better exert the active adaptation capability of the terminal device, and improve the reconstruction quality of the channel state information while ensuring the intercommunication of the encoder and the decoder, thereby improving the transmission performance of the whole communication system.

Disclosed in the present application are a method and device used in a communication node for wireless communication. A communication node determines that wireless connection failure occurs in a first cell and generates a first failure message; transmits a first signaling when a first set of conditions is satisfied; transmits a second signaling when the set of first conditions is not satisfied; and receives a third signaling. The first signaling is used to initiate wireless connection recovery for the first cell, and the first signaling comprises a first failure sub-message; the first failure message comprises the first failure sub-message; the second signaling is used to request radio resource control re-establishment; the first set of conditions comprises a phrase determining that the wireless connection failure occurs in the first cell; the third signaling is used to update the wireless connection; when the set of first conditions is satisfied, the first signaling is used to trigger the third signaling, and when the set of first conditions is not satisfied, the second signaling is used to trigger the third signaling.

This disclosure relates to a communication processing method, apparatus, terminal, and storage medium. The method provided in this disclosure is applied to a terminal with multiple user identification cards (SIM cards), comprising: when a trigger information for switching a first SIM card to a second SIM card is detected, disconnecting a first data channel between the first SIM card and the terminal's communication module, and maintaining a first network connection between the communication module and a first network device; when the second SIM card switches back to the first SIM card, reconstructing the first data channel, so that the first SIM card can perform network communication through the first network connection and the reconstructed first data channel. Through the technical solution of this disclosure, SIM cards can be switched quickly, and because the first network connection is maintained, data can be quickly restored after switching back to the first SIM card.

A method and apparatus for transmitting and receiving inactive multicast services are disclosed. The method for transmitting inactive multicast services includes: transmitting first indication information and / or second indication information, wherein the first indication information indicates receiving multicast services in an inactive state, and the second indication information indicates conditions that need to be met to receive multicast services in an inactive state; and transmitting multicast service data. This invention enables the determination of inactive multicast service transmission.

The application discloses a kind of based on pre-shared key's aviation broadband communication system key management method, it is related to information security and aviation communication technical field.The method includes: based on the generation of symmetric key of multistage key structure, based on pre-shared key's key distribution, based on the key storage of domestic cryptographic card, the key update of dynamic cross-domain scene-oriented and based on the key revocation of symmetric key.The application pre-sets root key by offline mode, and gradually derives master key and session key between aircraft node, ground safety gateway and ground station in combination with key derivation function, and adopts the cryptographic card that meets national commercial cryptographic standard to carry out encrypted storage and integrity protection to key.When switching across ground station, key update is triggered by ground safety gateway, and the dynamic replacement of master key and session key is realized.The application enhances the security and service continuity in cross-domain switching process, and realizes the whole life cycle management of key.

The present disclosure provides an information indicating method and apparatus, a user equipment (UE), a base station, and a storage medium, and belongs to the technical field of communications. The method comprises: a UE acquiring indication information sent by a base station (101), the indication information comprising at least one TCI state ID corresponding to at least one codepoint; the UE then determining that a TCI state corresponding to the at least one TCI state ID is a joint TCI state and / or a separate TCI state, and / or determining that the TCI state is applicable to uplink transmission and / or downlink reception (102). Thus, in the embodiments of the present disclosure, unified TCI state indication is implemented, reducing signaling overhead and improving DCI signaling reliability.