7951 results about "Random access" patented technology

The present disclosure relates to a communication technique which combines a 5th generation (5G) communication system for supporting a higher data transmission rate beyond a 4G system with an internet of things (IoT) technique and a system thereof. The present disclosure may be applied to intelligent services (e.g., a smart home, a smart building, a smart city, a smart car or a connected car, health care, digital education, retail business, security and safety related services, etc.) based on 5G communication technology and IoT related technology. According to various embodiments of the present disclosure, in a wireless communication system, a terminal may include at least one transceiver and at least one processor coupled with the at least one transceiver, the at least one processor may be configured to receive system information from a cell of a base station, determine whether the cell supports new radio (NR) lite, based on the system information, and if the cell supports the NR lite, perform a random access procedure for the cell, and for the terminal performing the NR lite, at least one of a subcarrier spacing (SCS), a transport block (TB) size, or a bandwidth part (BWP) is reduced to a designated value, compared to other terminal not performing the NR lite.

Embodiments of the present disclosure relate to methods, devices and computer storage media for communication. According to this solution, a terminal device detects a beam failure on a first component carrier (CC). The terminal device applies at least one ne quasi co-location (QCL) parameters as the ones associated with a first reference signal for downlink reception on the first CC until a first timing, or applies a spatial domain filter as the one associated with the first reference signal or as for a physical random access channel (PRACH) transmission for uplink transmission on the first CC until the first timing. In this way, the failed CC can still be under control of common beam update / activation.

A wireless device receives, from a base station, a UE capability enquiry message and transmits a UE capability information message indicating a maximum number of candidate cells for ETA. The UE receives, from the base station, an RRC reconfiguration message comprising a LTM configuration comprising a first configuration for layer 1 measurement reporting, a second configuration of resource, for the layer 1 measurement reporting, and a configuration for a candidate cell. The UE transmits, to the base station and based on the first configuration and the second configuration, a layer 1 measurement report and receives, from the base station, a downlink control information indicating the candidate cell for ETA. The UE transmits via the candidate cell a random access preamble for ETA, receives a cell switch command, for LTM, indicating the configuration of the candidate cell and a TA value of the candidate cell, and applies the configuration of the candidate cell and transmits, based on the TA value and via the candidate cell, a physical uplink shared channel (PUSCH).

The invention relates to a power field Text2SQL (Structured Query Language) data analysis method based on LLM (Logical Language Model) and RAG (Random Access Gateway), and solves the defects that a retrieval result contains noise and redundancy and a large model still has a large number of illusion phenomena due to the absence of a vectorization model in a specific field and the singleness of knowledge base types and dimensions in the RAG technology compared with the prior art. The method comprises the following steps: constructing a data set of a Text2SQL data analysis method in the power field; constructing a multi-dimensional text knowledge base of the Text2SQL data analysis method in the power field; fine adjustment of an LLM base of a Text2SQL data analysis method in the electric power field; constructing an RAG retrieval module of the Text2SQL data analysis method in the power field; and constructing an Agent data analysis module of the Text2SQL data analysis method in the power field, and performing data analysis processing. According to the method, related information required by Text2SQL data analysis in the electric power field can be obtained by a large language model through retrieval on the basis of an RAG technology, meanwhile, the privacy and timely updating of the data are ensured by field data stored in a knowledge base form, and the model training cost is also greatly reduced by the LLM-based Text2SQL data analysis method taking a prompt project as a main part; and by setting the mixed retrieval parameters, the retrieval result has relatively high accuracy, and the effect of Text2SQL data analysis is ensured.

In the present disclosure, a method for operating a terminal in a wireless communication may include receiving, by the terminal, a synchronization signal from a base station, transmitting a random access preamble to the base station based on the synchronization signal, receiving a random access response based on the random access preamble, performing connection with the base station after receiving the random access response, receiving at least any one of AI / ML model information and model performance feedback-related information for an AI / ML model from the base station, and performing model inference in the AI / ML model based on the AI / ML model information and determining, through model performance evaluation, whether or not to transmit MPF of the AI / ML model to the base station.

A method for operating a user equipment (UE) in a wireless communication includes obtaining resource configuration information of an uplink signal; obtaining resource configuration information for two-step random access based on the resource configuration information of the uplink signal; determining resources for transmission for the two-step random access based on the resource configuration information for the two-step random access; and performing the transmission for the two-step random access, wherein the transmission for the two-step random access comprises transmitting a preamble on a random access occasion (RO) and transmitting data for the two-step random access on a physical uplink shared channel (PUSCH).

Methods, apparatuses, and computer-readable medium for reducing signaling overhead for a RedCap UE are provided. An example method may include receiving, from a base station, a grant associated with a set of random access channel (RACH) resources, a first part of the set of RACH resources for a reduced capability report including a set of overlapping resources that overlaps with a second part of the set of RACH resources for a physical uplink shared channel (PUSCH) repetition request. The example method may further include transmitting, in the set of overlapping resources to the base station, one or more repetition requests or one or more repetition number indications.

Disclosed are systems, apparatuses, methods, and computer-readable media for use in a wireless network for facilitating radio access synchronization. The method includes receiving, from a user equipment (UE) a message having a media access control (MAC) control element (CE) format and comprising a MAC protocol data unit (PDU) structure, the message being formed by multiplexing one or more MAC service data units (SDUs). The method further includes generating a response message to the received message by multiplexing a MAC random access response (RAR) with one or more MAC SDUs. The method then transmits the response message to the UE.

A wireless device receives, from a base station, a radio resource control (RRC) reconfiguration message comprising a layer 1 / layer 2 triggered mobility (LTM) configuration. The LTM configuration comprises an LTM candidate configuration of a candidate cell and a value of a time alignment timer for determining whether a timing advance (TA) value of the candidate cell is valid. The wireless device receives, from the base station, a downlink control information (DCI) indicating the candidate cell and to transmit a random access preamble for acquiring the TA value of the candidate cell. Based on the DCI, the wireless device transmits, via the candidate cell, the random access preamble for acquiring the TA value of the candidate cell. The wireless device receives, from the base station, a medium access control (MAC) control element (CE) indicating an identifier of the LTM candidate configuration of the candidate cell and the TA value.

The invention relates to the technical field of satellite communication, in particular to a time synchronization method, device and equipment for satellite communication, a medium and a program product. A terminal receives a synchronization signal block broadcasted by a satellite base station to perform preliminary synchronization, and decodes a main information block broadcasted by the satellite base station to obtain a cell-level public timing advance parameter and a time-frequency resource; selecting a lead code and a time-frequency resource in combination with a cell-level public timing advance parameter, initiating a random access request, and sending a first message to a satellite base station; receiving a second message from the satellite base station, wherein the second message comprises a timing advance instruction fed back according to the detection result of the lead code; and adjusting uplink timing synchronization according to the timing advance instruction, and sending a third message to the satellite base station through the physical uplink shared channel. According to the invention, on the premise that an existing preamble format and a timing advance indication range do not need to be changed, a terminal without GNSS capability can also realize initial random access and maintain uplink time synchronization.

Systems, apparatuses, and methods are described for wireless communications. Wireless communications between a base station and one or more wireless devices are described. A wireless device may use power ramping for transmissions and / or retransmissions. Power ramping may be used during a random access procedure. A wireless device may fail a channel access procedure (e.g., a listen before talk procedure) before sending a preamble or a transport block on an unlicensed band. The wireless device may use power ramping to determine a power of transmission of the preamble and / or transport block based on the prior preamble or a transport block transmission. Power ramping may be determined using a power ramping counter value and / or a power ramping step value, which may be shared or associated with the preamble and / or a transport block.

An operation method of a terminal in a communication system may comprise receiving first random access (RA) configuration information and second RA configuration information from a base station; transmitting a Msg1 to the base station based on the second RA configuration information; receiving a Msg2, which is a response to the Msg1, from the base station; and repeatedly transmitting a Msg3 K times to the base station.

A method of wireless communication performed by a user equipment (UE) includes receiving, from a base station (BS), a random access configuration associated with a plurality of random access occasions, wherein at least a first portion of the plurality of random access occasions is configured for PRACH message repetitions. The method further includes transmitting, to the BS based on the random access configuration, at least one random access communication, the at least one random access communication including a plurality of PRACH message repetitions in two or more of the plurality of random access occasions, wherein at least one of a random access occasion index associated with the at least one random access communication or the random access preamble indicates the at least one random access communication includes at least two PRACH message repetitions.

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.

The invention discloses a natural language-to-SQL (Structured Query Language) method and system based on RAG (Random Access Gateway) enhancement, and the method comprises the steps: constructing a query intention graph through dependency syntax analysis, recognizing and complementing semantic missing components, and forming complete semantic representation; vector representation is carried out on the business term segments by adopting vectorization coding, accurate definitions of business terms are obtained from a factory structured knowledge base, and an enhanced context set is formed through expansion retrieval in a low-confidence region; an SQL template mapping network is established based on historical query records, a mapping relation matrix is generated through field candidate matching, mapping conflict positions are identified, and multiple SQL candidate sequences are generated; grammar verification is carried out on the candidate sequence to identify grammar errors, semantic consistency verification is carried out to calculate the intention alignment degree, and an optimal SQL statement is selected through a deviation correction factor; and performing formatting processing and statistical abstract on an execution result, and providing data query capability for scenes such as factory quality management and equipment maintenance.

A wireless device transmits a first signal, based on a first protocol stack, to establish a first connection with a first cell. The wireless device transmits a second signal, based on a second protocol stack, to establish a second connection with a second cell. The wireless device deactivates the first protocol stack based on receiving a response to the second signal.

Apparatus, methods, and computer-readable media for facilitating SSB-subset selection based RACH with base station-side beam prediction are disclosed herein. An example method for wireless communication at a user equipment (UE) includes measuring one or more synchronization signal block (SSB) subsets of an SSB burst set including multiple SSBs grouped into SSB subsets. The example method also includes transmitting, to a base station, a random access message indicating information for at least one SSB subset from the one or more SSB subsets and measurement information for one or more SSBs of the at least one SSB subset.

A method performed by a WTRU may include receiving a random access channel (RACH) configuration indicating a plurality of RACH occasions. The RACH occasions within respective subsets are frequency division multiplexed. The method includes receiving configuration information indicating at least one transmit power threshold and information indicating resources associated with a mode of operation, and receiving criteria for selecting a RACH occasion that defines a group of RACH occasions from at least one subset that overlap with at least one uplink subband. The method includes sending a preamble transmission using a calculated transmit power in a selected RACH occasion, wherein, on a condition the calculated transmit power exceeds the transmit power threshold, the selected RACH occasion is selected from the defined group of the plurality of RACH occasions that overlap with the at least one uplink subband.

First transmission power can be determined (1110) for a first PRACH preamble in a 2-step random access procedure based on a first set of power control parameters. The first PRACH preamble can be transmitted (1120) in the 2-step random access procedure based on the first transmission power. A determination can be made (1130) to switch from the 2-step random access procedure to a 4-step random access procedure. Second transmission power can be determined (1140) based on the first set of power control parameters and a second set of power control parameters for a subsequent second PRACH preamble transmission for the 4-step random access procedure. The subsequent second PRACH preamble can be transmitted (1150) in the 4-step random access procedure based on the second transmission power.

Methods and apparatuses for radio frequency exposure mitigation via beam selection for random access procedure. A method for performing a random access (RA) procedure includes receiving information for a set of downlink reference signals (DL RSs). The method further includes determining: a set of DL reference signal received powers (RSRPs) corresponding to the set of DL RSs, a set of spatial filters corresponding to the set of DL RSs, a set of exposure levels corresponding to the set of spatial filters, a first DL RS from the set of DL RSs based on the set of DL RSRPs and the set of exposure levels, and a first spatial filter corresponding to the first DL RS. The method further includes transmitting a physical random access channel (PRACH), a physical uplink shared channel (PUSCH), or a physical uplink control channel (PUCCH) using the first spatial filter.

Example embodiments of the present disclosure relate to methods, devices, apparatuses and computer readable storage medium for power ramping procedure. In a method, a first apparatus performs a first random access transmission with a transmission power determined based on a power ramping counter. The first random access 5 transmission is associated with a first random access procedure initiated by a physical downlink control channel (PDCCH) order. The first apparatus stores a value of the power ramping counter.

A terminal receives a reference signal from an access network device. The terminal determines, based on a received power of the reference signal and a first set, a quantity of repetition times of sending a random access preamble by the terminal, where the first set is a set of quantities of times of repeatedly sending the random access preamble by the terminal, and the first set includes at least one or more of the following elements: an integer multiple of 3, an integer multiple of 5, or an integer multiple of 7. The terminal repeatedly sends the random access preamble to the access network device on a random access occasion RO based on the quantity of repetition times.

A random access method and apparatus, a terminal, a network device, and a medium, are provided. The random access method includes: executing, by a terminal, random access in a random access mode, where the random access mode is used for determining resources used by a target transmission, and the target transmission includes at least one of the following: a Physical Random Access CHannel (PRACH) transmission corresponding to the random access or a target uplink transmission during a process of the random access.

A wireless device receives, from a base station, one or more radio resource control (RRC) messages indicating two-step random access resources of a two-step random access type. The wireless device transmits, while the two-step random access type and a four-step random access type are available for receiving a preamble a random access procedure and based on the two-step random access resources comprising contention-free two-step random access resources, a preamble via the contention-free two-step random access resources.

Methods to enhance the coverage of NR systems for coverage-limited wireless devices are disclosed. A user equipment (UE) may receive, from a base station, information indicating that a coverage enhancement mode is supported. The UE may determine whether to enter the coverage enhancement mode based on a downlink signal synchronization block (DL SSB). In response to determining to enter the coverage enhancement mode, the UE may transmit a reserved preamble to the base station to initiate random access for the coverage enhancement mode.

Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment (UE) may transmit a message 1 (msg1) report message, of a four-step random access channel (RACH) procedure, identifying information associated with a plurality of synchronization signal blocks (SSBs), wherein the information includes a plurality of SSB indices associated with the plurality of SSBs. The UE may receive, based at least in part on transmitting the msg1 report message, a message 2 (msg2) update message, of the four-step RACH procedure, with an indication of a downlink beam associated with an SSB index of the plurality of SSB indices. The UE may transmit a response message, based at least in part on receiving the msg2 update message, indicating a confirmation of the SSB index indicated in the msg2 update message or indicating a reversion to a different SSB index.

A WTRU may detect a reflected SSB transmission from a RIS. The reflected SSB is associated with an index. The WTRU may determine a source device of the reflected SSB transmission based on the index. For example, the WTRU may determine that the reflected SSB transmission was reflected by the RIS based on the index associated with the RIS. The WTRU may perform a random access procedure with a network device via the RIS based on the index. The SSB transmission may be associated with an SSB burst transmission comprising a plurality of SSB transmissions, where each of the plurality of SSB transmissions may be associated with the index. The plurality of SSB transmissions may comprise SSB transmissions reflected by the RIS and / or SSB transmissions not reflected by the RIS. The spatial state of the RIS may be maintained constant and / or may change during the SSB burst transmission.

The invention belongs to the field of memory control, and provides a mapping table management method and a storage device.The method comprises the steps that a write-in instruction from a host system is received; judging an access mode of the write-in instruction according to an access feature of a logic address corresponding to the write-in instruction; if the access mode of the write-in instruction is judged to be a continuous access mode, updating a mapping relation from a logic address to a physical address corresponding to the write-in instruction to a main mapping table; and if it is judged that the access mode of the write-in instruction is a random access mode, recording and managing a mapping relation from a logic address to a physical address corresponding to the write-in instruction through a temporary mapping table arranged in a buffer memory, and delaying updating of a main mapping table. Therefore, the random write-in performance of the storage device is improved, and the service life is prolonged.

The invention relates to a ZNS SSD-based B + tree index construction method for dynamic placement of cold and hot data. A persistent memory PM, a dynamic random access memory DRAM and a ZNS SSD hard disk are included. The persistent memory PM and the dynamic random access memory DRAM are directly connected with a CPU memory bus and have the capability of being accessed by the CPU according to bytes; internal nodes of the B + tree are stored in a dynamic random access memory (DRAM), and the internal nodes only store index information used for positioning leaf nodes; the pseudo leaf nodes of the B + tree are stored in a persistent memory PM, and only the key index information of the leaf nodes is stored in the pseudo leaf nodes; leaf nodes really storing the key value pairs in the B + tree are divided into hot leaf nodes and cold leaf nodes according to the data access frequency, the hot leaf nodes are stored in a persistent memory PM, and the cold leaf nodes are stored in a ZNS SSD. According to the method, the leaf nodes are quickly positioned by using the DRAM, so that the query time is shortened; hot leaf nodes are stored in the PM, and the real-time service read-write requirement is met; and hot data is stored in a high-speed DRAM and PM, so that the random read-write delay is reduced, and the performance is excellent in scenes such as big data analysis and the like.

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.