556 results about "Mobile communication systems" patented technology

The present disclosure relates to a 5G or 6G communication system for supporting higher data transmission rates. Disclosed are a method and a device for supporting access by a terminal to a NES cell, the method comprising the steps of: receiving, in a radio resource control (RRC) inactive mode or an RRC idle mode, system information from a camp-on first cell; acquiring, from the system information, system information about a second cell that does not perform system information transmission; determining, on the basis of threshold value information about the reception signal strength included in the system information about the second cell, whether a condition for access to the second cell is satisfied; and performing, if the condition is satisfied, a random access procedure for the access to the second cell.

To provide a communication method, user equipment, a mobile communication system, a program, and a chip set for allowing the user equipment in an RRC inactive state to perform multicast reception, in a mobile communication system providing a multicast / broadcast service (MBS).SOLUTION: User equipment UE 100, which is in a ratio resource control (RRC) inactive state and participates in a multicast session, receives a paging message for notifying the start of the multicast session from a network node gNB 200, and determines whether to make a transition from the RRC inactive state to an RRC connected state. The paging message includes session information on the multicast session, and identification information for specifying one or more pieces of user equipment UE 100 to be transitioned to the RRC connected state.SELECTED DRAWING: Figure 9

The present disclosure relates to a 5G or 6G communication system for supporting a higher data transmission rate. Provided is a method performed by a first network entity that performs a session management function (SMF) and a packet data network gateway-control plane function (PGW-C) of a mobile communication system. The method comprises the steps of acquiring, from a user equipment (UE), an indicator indicating a UE route selection policy (URSP) provisioning support in an evolved packet system (EPS);transmitting, based on the indicator, a session management (SM) policy control update request message to a second network entity that performs a policy control function (PCF) related to a session; and receiving, from the second network entity, an SM policy control update response message including URSP information generated by a third network entity that performs a PCF related to the UE.

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 by which a terminal collects information related to handover performance and efficiently reports the information to a base station.

The disclosure relates to a communication technique for fusing a 5G communication system with IoT technology to support higher data rate after the 4G system and a system thereof. The disclosure may be applied to an intelligent service (e.g., smart home, smart building, smart city, smart or connected car, healthcare, digital education, retail, security and safety related services, etc.) based on 5G communication technology and IoT-related technology. The disclosure discloses a method for allowing a UE to normally receive a MBS service in various scenarios.

The present disclosure relates to a 5G or 6G communication system for supporting higher data transmission rates. The present disclosure relates to a method performed by a terminal in a wireless communication system, and a device for performing same, wherein the method comprises the steps of: storing measurement information obtained through slice-based cell reselection in a radio resource control (RRC) standby state or RRC inactive state; transmitting the measurement information obtained through the slice-based cell reselection to a base station after the terminal switches to an RRC connected state; and receiving, from the base station, information for configuring a cell supporting a slice for the terminal on the basis of the measurement information obtained through the slice-based cell reselection.

The disclosure relates to a communication technique and system for combining an IoT technology with a 5G communication system for supporting a higher data rate than a 4G system. The disclosure is applicable to intelligent services (e.g., smart home, smart building, smart city, smart car or connected car, healthcare, digital education, retail business, security and safety-related service, and the like) on the basis of a 5G communication technology and an IoT-related technology. The disclosure provides a method and apparatus for effectively performing a header compression or decompression procedure in a next-generation mobile communication system.

The disclosure relates to a 5G or 6G communication system for supporting a higher data transmission rate. A method for Artificial Intelligence / Machine Learning (AI / ML)-based beam management in a mobile communications system comprising a User Equipment (UE) and a network, the method comprising: prioritizing, based on an inference from a beam management AI / ML model, one or more beams among a plurality of beams for communication between the UE and the network; and performing communication between the UE and the network based on the prioritized one or more beams.

The present disclosure relates to a communication technique merging IoT technology with a 5th generation (5G) or pre-5G communication system for supporting a data transmission rate higher than that of a 4th generation (4G) communication system such as long term evolution (LTE), and a system therefor. The present disclosure may be applied to intelligent services (for example, smart homes, smart buildings, smart cities, smart cars or connected cars, health care, digital education, retail, and security and safety related services) on the basis of 5G communication technologies and IoT-related technologies. Various embodiments of the present disclosure may provide a method and a device for bandwidth part switching in consideration of a dormant bandwidth part.

An NCR-UE (control terminal) that controls an NCR apparatus (relay apparatus) that relays a radio signal between a gNB (base station) and a UE (user equipment) in a mobile communication system receives, from the gNB, configuration information used by the NCR apparatus to direct a beam to the UE, and controls the NCR apparatus to direct the beam to the UE, based on the configuration information.

The disclosure relates to a 5G or 6G communication system for supporting a higher data transmission rate. The disclosure provides a method and a device for discarding RLC AM data in a wireless communication system. The method of a terminal comprise: receiving, from a base station, a message comprising information on a timer for a radio link control (RLC) service data unit (SDU) discard at an RLC entity of the terminal; receiving, from the base station, an acknowledged mode (AM) data (AMD) protocol data unit (PDU) with a sequence number (SN) x; when an AMD PDU with a SN y lower than x is not received, starting the timer; and when the timer expires, discarding at least one AMD PDU from a buffer with a SN lower than x+1.

A communication method performed by a user equipment in a mobile communication system that provides a multicast / broadcast service (MBS) includes receiving a multicast session from a network in a radio resource control (RRC) connected state using a first multicast radio bearer (MRB) for the RRC connected state, receiving, from the network, an RRC release message for causing the user equipment to transition to an RRC inactive state, the RRC release message including configuration information indicating a configuration of a second MRB used for reception of the multicast session in the RRC inactive state, and establishing the second MRB by applying the configuration information before suspending the first MRB in response to the reception of the RRC release message.

The disclosure relates to a 5G or 6G communication system for supporting a higher data transmission rate. A method performed by a base station in a mobile communication system is provided. The method includes receiving a downlink (DL) data for a user equipment (UE), determining whether a volume of the DL data is less than a data volume threshold, and in case that the volume of the DL data is less than the data volume threshold, transmitting, to the UE, a paging message including an inactive radio network temporary identifier (I-RNTI) and a mobile terminated small data transmission (MT-SDT) indication.

A communication method used in a mobile communication system for providing a multicast / broadcast service (MBS) includes: providing, by a base station, two types of multicast control channels (MCCHs) being a first MCCH for a broadcast communication service and a second MCCH for a multicast communication service; and transmitting, by the base station to a user equipment, mapping information indicating a correspondence relationship between an MBS session identifier of an MBS session and a type of the MCCH for transmitting a Point-to-Multipoint (PTM) configuration corresponding to the MBS session.

The invention firstly discloses a terminal uplink power control method. The method comprises the following steps of: determining whether uplink signal transmission is in a communication interference coexistence state with an adjacent station sensing signal or not; if so, generating or acquiring an uplink power control parameter or an inductance interference constraint factor aiming at the state; and determining the transmitting power of the uplink signal of the terminal based on the parameter or the factor. The invention further comprises network side equipment, terminal side equipment, communication equipment, a storage medium and a system which are used for implementing the method. According to the method and the device, the problems that the existing power control mechanism lacks targeted interference constraints and is insufficient in dynamic coordination capability when the same-frequency interference of the uplink signal of the terminal and the sensing signal of the adjacent station coexist in the communication and sensing fusion network are solved, and the method and the device are particularly suitable for the scene of communication and sensing service fusion deployment in 5G and subsequent mobile communication systems.

The disclosure relates to a 5G or 6G communication system for supporting higher data transmission rates. The disclosure relates to the operation of a terminal and a base station in a wireless communication system and, specifically, relates to a method for transmitting and receiving an uplink reference signal in a wireless communication system, and an apparatus capable of performing same. The disclosure provides an apparatus and a method capable of providing services effectively in a mobile communication system.

A communication system is provided that, if a large number of small cells are installed, is capable of configuring an operation suitable for small cells through simple operation and administration. A small cell judges whether a target cell is a macro cell in cell search. The cell broadcasts an indicator as to whether a target cell is a macro cell. The cell may broadcast an indicator as to whether it supports the macro support mode. As a result of cell search, the small cell receives the broadcast information of a cell having reception quality not less than a predetermined threshold, thereby checking an indicator as to whether the cell supports the macro cell support mode. The small cell notifies network equipment of capability information indicating its own capability, for example, a capability parameter indicating its own capability, thereby notifying the network equipment of its own capability, including (1) an indication that a cell is a small cell, (2) information on a mode to be supported, (3) cell identification information of a coverage cell detected in cell search by the small cell, (4) reception quality of (3) above, (5) information on the installation place of the small cell, (6) transmission power, which may be the rank of a base station, or (7) combination of (1) to (6).

The present document relates to a handover support method for an important communication service, and an apparatus therefor. To this end, the method by which a target network device allowing a user equipment (UE) to perform handover supports handover of the UE in a mobile communication system comprises: receiving, by the target network device, a handover request message of the UE, the handover request message including bearer information configured such that the UE receives a source network device and one communication service flow through two or more bearers; and transmitting a handover request response message on the basis of the bearer information.

A user equipment is a user equipment for performing wireless communication with a node in a mobile communication system, the user equipment including: a receiver that receives a first reference signal transmitted by the node; a controller that measures a resource of the first reference signal, calculates a precoder to be used for transmitting a physical uplink shared channel based on the measurement of the resource of the first reference signal, and applies the precoder to the physical uplink shared channel; and a transmitter that transmits, to the node, the physical uplink shared channel to which the precoder has been applied.

The disclosure relates to a communication technique for convergence between an IoT technology and a 5G communication system for supporting higher data transmission rate than a 4G system, and a system thereof. The disclosure may be applied to intelligence services (e.g., smart homes, smart buildings, smart cities, smart cars or connected cars, healthcare, digital education, retail businesses, security and safety related services, etc.) on the basis of a 5G communication technology and an IoT-related technology. According to an embodiment of the present discourse, a method of a terminal in a communication system may comprise the steps of: receiving, from a base station, at least one segmented radio resource control (RRC) message including a part of an RRC message which has a size larger than a preconfigured size; storing the at least one received segmented RRC message; identifying that a radio link failure (RLF) has occurred with respect to the base station; and discarding the stored segmented RRC message upon the occurrence of the radio link failure.

To suppress a network load by setting a data transmission path for each user terminal group.SOLUTION: An information processing system includes an acquisition unit 11 that acquires past location information of each of a plurality of user terminals 2 based on the location information of each user terminal 2 associated with a location registration request signal transmitted from each of the plurality of user terminals 2, an operation unit 14 that performs an operation of a trained recurrent neural network by giving the past location information of each of the plurality of user terminals 2 as an unknown input and outputs future location information of each of the plurality of user terminals 2, a first determination unit 16 that determines, based on the future location information of each of the user terminals 2 output by the operation unit 14, a user terminal group 20 that moves on the same route among the plurality of user terminals 2, and a communication control unit 18 that instructs a core network to set the same data transmission path for the user terminal group 20.SELECTED DRAWING: Figure 1

The present disclosure relates to a 5G or 6G communication system for supporting higher data transmission rates. In addition, a method performed by a user equipment in a wireless communication system according to various embodiments of the present disclosure may comprise the operations of: receiving a radio resource control (RRC) message including measurement configuration information from a base station; transmitting, to the base station, a first message including user equipment capability information on the basis of the RRC message; receiving, from the base station, an RRC connection release message including idle mode measurement configuration information; identifying whether idle mode measurement interval information is included in the idle mode measurement configuration information on the basis of the RRC connection release message; and when the RRC connection release message does not include the idle mode measurement interval information, deleting the stored measurement information.

The embodiments of the present application relate to the technical field of terminals. Provided are a resource management method, a communication system, and a related apparatus. The method comprises: receiving first information, wherein the first information is used for indicating the release of an ambient Internet-of-Things (AIoT) resource, the AIoT resource is used for a wireless transmission of AIoT service data, the first information comprises at least one of a first format indication, an AIoT resource indication, or an identifier of a first terminal device, the first format indication is used for indicating the release of the AIoT resource, and the AIoT resource indication is used for indicating at least one AIoT resource; and on the basis of the first information, releasing the AIoT resource. In this way, an AIoT resource can be released in a timely manner, such that the utilization rate of the AIoT resource is increased, thereby reducing the occurrence probability of it being impossible for a first device to obtain an AIoT service of a mobile communication network (or a mobile communication system) in the timely manner, and thus enabling the mobile communication system to provide the AIoT service for more AIoT devices.

A method and apparatus for accessing a NR cell in a mobile communication system are provided. Method for accessing a NR cell includes receiving in a first cell, by a terminal from a base station, a Master Information Block (MIB) and a System Information Block1 (SIB1), determining, by the terminal, if the first cell is barred and performing by the terminal a first operation group if the cell is barred and perform, if the first cell is not barred, a second operation group.

This application provides an LDPC multi-level coded transmission method, apparatus, and electronic device, introducing a multi-level coded modulation scheme to achieve inter-stream and inter-bit code rate allocation based on channel quality differences, and implementing joint iterative optimization of detection and decoding at the receiver. At the transmitter, multi-level coded modulation is performed according to a pre-constructed parameter table, which allocates code rates at the sub-stream level and between bits for single-stream or multi-stream data. High-reliability streams / bits use higher code rates, while low-reliability streams / bits use lower code rates, thus achieving fine-grained code rate allocation. At the receiver, MIMO detection, demodulation, and decoding are jointly iteratively processed according to the corresponding multi-level coded modulation structure based on the same parameter table. Joint optimization of detection and decoding performance is achieved through hard or soft information feedback mechanisms, providing a high-spectral-efficiency and high-reliability transmission scheme for future mobile communication systems.

A method, apparatus, and computer program are described comprising: obtaining information from a mobile communication system, wherein the mobile communication system comprises a reconfigurable intelligent surface, RIS, that is configured to support communications between a network node and user equipment of at least a first cell of the mobile communication system, and wherein the information is indicative of the RIS being configured to provide said support; and determining during a cell selection or reselection procedure to camp on the first cell based at least in part on the obtained information.

This communication method executed by aerial user equipment in a mobile communication system includes: receiving, from a network node, a conditional handover (CHO) configuration including information about candidate cells and information about CHO execution conditions; executing CHO, on the basis of the received CHO configuration, for one candidate cell in response to a trigger condition being satisfied for the one candidate cell; retaining all or part of the CHO configuration after executing the CHO; and executing a subsequent CHO, on the basis of the retained CHO configuration, for another candidate cell in response to the trigger condition being satisfied for the other candidate cell.

A device capable of using a service provided via a satellite-based non-terrestrial network of a mobile communication system acquires (S111) an emergency service code from the mobile communication system, the emergency service code to be used in an emergency mode. If the device is in the emergency mode, an emergency report is generated (S113), the emergency report comprising at least the identification and location of the device. When the device is in a coverage area of a satellite of a non-terrestrial network, an emergency reporting request is sent (S115) to the satellite, the emergency reporting request comprising an emergency report and an emergency service code.

This disclosure relates to fifth-generation (5G) or sixth-generation (6G) communication systems for supporting higher data rates. A method performed by a terminal in a wireless communication system. The method includes: receiving a Radio Resource Control (RRC) release message including measurement configuration information from a base station; entering an RRC idle state or an RRC inactive state based on the RRC release message; receiving system information from the base station, the system information including information indicating whether the terminal performs measurements while camped in a cell and reports measurement availability in the case of establishing or resuming a connection in the cell; performing measurements based on the measurement configuration information in the RRC idle state or the RRC inactive state; performing an RRC connection procedure with the base station; receiving a User Equipment (UE) information request message including a request for verified measurements from the base station; and sending a UE information response message including verified measurements to the base station.