373 results about "Store and forward" patented technology

Certain aspects of the present disclosure provide techniques for data transmission in a store and forward non-terrestrial network (NTN). A method for wireless communication by a user equipment (UE), the method includes obtaining information of one or more NTN entities configured to store UE data. The method includes selecting one of the one or more NTN entities based on the information. The method includes outputting uplink data to the NTN entity.

Methods, systems, and apparatuses are provided for handling Non-Terrestrial Network (NTN) store and forward (S&F) configurations in a wireless communication system, wherein a method of a User Equipment (UE) comprises being provided with an indication or a configuration about traffic type for an S&F operation from a network, and determining whether to use the S&P operation based on the indication or the configuration

A user equipment (UE) communicates with remote endpoints by accessing a space vehicle (SV) in a store and forward (S&F) mode when the SV has no feeder link to a network. The SV includes RAN and CN capability to enable the UE to communicate with an on board proxy. The UE sends mobile originated voice and data to the remote endpoints via the proxy and a second proxy in an S&F center (SFC) and similarly receives mobile terminated data from the remote endpoints. Secure access by the UE to the SV and by the second proxy to a ground network is enabled by providing, to the SV and SFC, UE security key data derived non-reversibly from a security key on the UE USIM. The derived security key data avoids exposing the USIM security key and enables SV access without pre-subscription to an SV operator.

Presented are systems and methods for timing enhancement in store and forward mode. A wireless communication node may configure a waiting duration indicative of a duration to a next service period of a satellite, and a serving duration indicative of a duration of a service period of the satellite. The wireless communication node may send the waiting duration and the serving duration, to be used by a wireless communication device during a random access procedure.

A wireless device sends, to a mobility management node via a base station of a satellite network, an indication of support for a store and forward (S&F) mode of operation. The wireless device receives, from the mobility management node, a de-registration timer parameter for the S&F mode.

A mobility management node receives, from a wireless device, a first message requesting registration of a store and forward (SF) mode, and sends, to an authentication management node, an authentication request message indicating the SF mode. The mobility management node receives, from the authentication management node, an authentication response message, and sends, to the wireless device, a second message requesting authentication.

Methods, systems, and apparatuses are provided for time information of Non-Terrestrial Network (NTN) store and forward operations in a wireless communication system such that User Equipment (UE) can apply Store and Forward (S&F) operations more efficiently, wherein a method of a UE comprises receiving a time information for an S&F operation for an NTN cell, and determining when to enter or leave an S&F mode for the NTN cell based on the time information.

Embodiments herein disclose methods and systems for managing satellite communication using a store and forward (S&F) service with at least one network node onboarding a satellite (400). The method includes determining, by a User Equipment (UE) (500), that a network supports the S&F service. Further, the method includes determining, by the UE (500), at least one new value of a timer and provide the estimated delivery time to upper layers of the UE (500), to use the at least one new value of the timer by an application layer based on at least one estimated delivery time received from a core network node (600). The method includes initiating, by the UE (500), at least one Non-Access Stratum (NAS) procedure with the network based on the determined at least one new value of the timer.

The invention provides a method, a device, equipment and a medium for realizing an on-satellite store-and-forward function, and solves the problem of how to assist a network to realize on-satellite communication service by an application enabling layer in a scene of satisfying satellite access. The method for realizing the on-satellite store-and-forward function comprises the following steps of: determining a third on-satellite store-and-forward parameter according to one or more of a data service request, terminal capability information, a first on-satellite store-and-forward parameter sent by core network equipment and a pre-configured second on-satellite store-and-forward parameter; according to the invention, satellite storage and forwarding parameters are obtained through equipment related to satellite communication service, and the network is assisted to realize satellite communication service.

A wireless device supporting a store and forward (S&F) mode of a satellite system starts, based on sending a first registration request message, a timer using a NAS period value. The wireless device restarts the timer based on a configuration parameter of the S&F mode and sends a second registration request message in response to expiration of the timer.

A wireless device receives one or more parameters for a store and forward (SF) mode for an application, and determines whether to send a packet of the application based on at least one of the one or more parameters or that the network operates in the SF mode. The wireless device sends, to a base station, a message comprising at least one of a non-access stratum (NAS) message comprising the packet, or a value of at least one of the one or more parameters.

Techniques are described to enable a user equipment (UE) to communicate with remote endpoints by accessing a space vehicle (SV) in a store and forward (S&F) mode when the SV does not have a feeder link to a ground based network. The SV can include on board radio access network and core network capability which can enable the UE to communicate with an on board proxy for the remote endpoints. The proxy stores mobile originated (MO) voice and data sent by the UE and returns mobile terminated (MT) voice and data sent by the remote endpoints. When the SV has a feeder link, the proxy forwards MO data to a second proxy in an S&F center for forwarding to the remote endpoints and can receive MT data from the second proxy for the UE. UEs can access SVs without restriction and are registered only while accessing an SV.

A user equipment (UE) communicates with remote endpoints by accessing a space vehicle (SV) in store and forward (S&F) mode when the SV has no feeder link to a network. The SV includes RAN and CN capability to enable the UE to communicate with an on board proxy. The UE sends mobile originated (MO) voice and data to the proxy in a packaged data set and receives mobile terminated voice and data from the remote endpoints also as a packaged data set. When the SV has a feeder link, the proxy forwards the packaged MO data set to a second proxy in an S&F center. The second proxy may unpackage the packaged MO data set and forward the MO data to the remote endpoints or forward the packaged MO data set for unpackaging by a remote endpoint. The packaging can significantly reduce SV access time by the UE.

A wireless terminal that communicates with an access node on a satellite via a service link comprises receiver circuitry and processor circuitry. The receiver circuitry is configured to receive, from the access node, store and forward (S&F) information comprising (1) S&F operation mode status indicating that the access node provides S&F service, and (2) access control information, the access control information for the S&F service. The processor circuitry is configured, based on the S&F information, to make a decision whether an access attempt is allowed. The S&F service comprises storing and forwarding of user data.

According to one embodiment of this specification, there is provided an operation method of user equipment (UE). The method may comprise: receiving a Store and Forward (S&F) satellite operation parameter; starting a timer T3451 with a S&F wait timer duration value provided in the S&F satellite operation parameter; and while the timer T3451 is running, not initiating a non-access stratum (NAS) procedure over a S&F satellite cell in a tracking area identifier (TAI) list assigned to the UE, unless the S&F satellite cell broadcasts a same satellite identifier (ID) broadcasted by the S&F satellite cell from which an accept message was received.

Methods, systems, and apparatuses are provided for Non-Terrestrial Network (NTN) Store and Forward (S&F) procedures in a wireless communication system, with a method of a first network node comprising receiving a transmission from a User Equipment (UE), and determining to respond to the transmission to the UE based on a feeder link of the first network node being not available and a service associated with the transmission is a Short Message Service (SMS).

The invention provides an on-satellite store-and-forward service using method and device, a terminal and a satellite. The method is applied to a terminal, the terminal signs a satellite store-and-forward service, and the method comprises the following steps: receiving parameter information which is sent by a satellite and is related to satellite store-and-forward, the parameter information comprising at least one of the following items: a real-time communication connection state between the satellite and a ground network and a satellite store-and-forward service parameter; and determining to use or stop using the on-satellite store-and-forward service according to the parameter information. Through the scheme, the terminal signed with the satellite store-and-forward service can determine whether the satellite store-and-forward service needs to be used or not based on the real-time communication connection state between the satellite and the ground network sent by the satellite, and the problem that an existing mode for activating the satellite store-and-forward service does not have practical operability is solved.

Methods, systems, and apparatuses are provided for wait timers of Non-Terrestrial Network (NTN) Store and Forward (S&F) in a wireless communication system, wherein a method for a UE comprises initiating a first procedure to a first network, wherein the first procedure is an attach, tracking area update (TAU) procedure, or a service request procedure, receiving a configuration of a wait time for an S&F operation, starting a first timer based on the wait time, wherein the UE is prohibited to initiate the first procedure to the first network for the S&F operation when the first timer is running, and stopping the first timer if the UE initiates or successfully completes a second procedure in a cell of a second network, wherein the second procedure is an attach, TAU procedure, or a service request procedure.

Systems and methods for operating a satellite equipped with a base station include: indicating, to a user equipment "UE" attempting to connect to the satellite, that the satellite supports both: (i) direct transfer; and (ii) store and forward "S&F" modes of operation; receiving, from the UE, a set of data comprising an indication of which mode of operation the satellite should use to transmit the set of data; and based on the mode of operation indicated by the UE, either: (a) transmitting the set of data to one of: a second satellite; or a ground station; or (b) storing the set of data in a data storage and transmitting the set of data to the ground station at a later point in time.

A wireless communication method and a terminal device are provided. The method includes: a terminal device receiving first indication information, which is used for determining that a first satellite successfully receives mobile-originated (MO) data sent by the terminal device, wherein the MO data is transmitted by using a storage and forwarding mode of the first satellite; and the terminal device caching the MO data, wherein the cached MO data is cleared away in the following cases: the terminal device determining that the MO data is successfully submitted to a core network and / or the cached MO data is invalid.

The invention provides a satellite access charging method and device, electronic equipment and a computer readable storage medium, and relates to the technical field of communication. The method comprises the following steps: in a session establishment process, a session management function selects a ground user plane function and an on-satellite user plane function for a user terminal; the session management function sends a charging quota request and a charging data request containing data such as satellite information, storage and forwarding instructions and actual quota management information to the charging function, and the charging function generates quota charging data according to the charging quota request, generates actual charging data according to the charging data request and sends the actual charging data to the session management function; according to the embodiment of the invention, based on the storage and forwarding functions of the satellite user plane data, the charging of the user traffic use condition is completed, so that the time delay tolerant data service charging of massive Internet of Things equipment in the space-air-ground discontinuous feeder scene is realized.

An aspect of this disclosure includes a method of a Radio Access Network, RAN, node. The method includes sending, to a first core network node, a first message including Store and Forward, S&F, related information. The method includes receiving, from the first core network node, a second message including S&F related information of a second core network node.

Example embodiments of the present disclosure relate to store-and-forward operations in non-terrestrial networks (NTN). In an aspect, a first non-terrestrial network (NTN) device based on receiving a first registration request from a terminal device and not having a connectivity with a terrestrial network (TN) device, store the first registration request. The first NTN device transmit an identifier assigned to the terminal device to the terminal device. In this way, the registration procedure, authentication procedure, security, and UE subscription data is during store-and-forward scenarios.

The present invention is related to a method of exchanging data in a wireless communication system, the method being implemented by a wireless device of the wireless communication system, wherein the wireless device comprises a communication unit configured to exchange data with a radio access network (RAN) of the wireless communication system. The method comprises being provided with an indication of store and forward (S&F) operations from a base station of the wireless communication system, and when / if the store and forward (S&F) operation is enabled, then the wireless device does not send low priority service data to base station and stores them in the wireless device buffer, until the store and forward (S&F) operation ends or another network node not operating in store and forward mode is accessed.

The present disclosure relates to the technical field of communications, and disclosed are an information processing method, an apparatus, and a readable storage medium, so as to perfect the processing mechanism in on-satellite storage and forwarding. The method comprises: determining a transmission state of transmission of data to a first satellite; and on the basis of the transmission state, executing a deregistration process or a registration update process, or establishing an association between untransmitted data and the first satellite.

The invention provides an information transmission method and device, a terminal and network equipment, and relates to the technical field of communication. The information transmission method comprises the following steps: sending first information to network equipment; wherein the first information is used for indicating the satellite equipment to release the storage space allocated to the terminal under the condition that a first condition is met, and the first condition comprises that the stored data of the terminal is forwarded completely; or the first information is used for indicating the satellite equipment to adjust the data storage duration of the terminal and / or adjust the data storage capacity allocated to the terminal by the satellite equipment. According to the scheme, the dynamic adjustment of the storage space and / or the data storage duration can be realized, so that the utilization rate of the storage space of the satellite equipment is improved, the storage and forwarding requirements of more terminals are met, and high-quality on-satellite storage and forwarding services are provided.

The embodiment of the invention provides a non-ground network communication method and device which are applied to an NTN scene, in the communication method, based on an NTN storage and forwarding mechanism, a network device can send a first message to a terminal, the first message is used for indicating that the network device located on a high-altitude platform such as a satellite does not cache downlink data of the terminal in a coverage area of the network device, and the network device can send the downlink data to the terminal. According to the embodiment of the invention, the terminals do not monitor paging messages or do not establish RRC connection, so that the terminals can save power consumption in a store-and-forward scene of NTN communication.

Provided in the embodiments of the present application are a store-and-forward-based satellite communication method, and a device, which are applied to the technical field of communications. The method is applied to a first satellite base station, wherein a satellite base station network comprises at least one satellite base station, the satellite base station network comprises the first satellite base station and a second satellite base station, the first satellite base station respectively establishes communication connections with the second satellite base station and a user equipment, the second satellite base station respectively establishes communication connections with the first satellite base station and a ground station, and the user equipment is in a non-store-and-forward mode. The method comprises: when the communication between a second satellite base station and a ground station is disconnected or the communication between a first satellite base station and the second satellite base station is disconnected, the first satellite base station generating a first mode switching instruction; and the first satellite base station sending the first mode switching instruction to a user equipment, wherein the first mode switching instruction is used for instructing the user equipment to switch the communication mode thereof from the current non-store-and-forward mode to a store-and-forward mode.

Provided are: a means for executing, in satellite-routed communication between a network and UE, with a store-and-forward function taken into account, management of a timer for transmitting / receiving appropriate control information between the network and the UE so as to retransmit an appropriate control message based on the control information between the network and the UE, management of the number of times a message is retransmitted, and retransmission of appropriate messages; and a method for executing appropriate processing based on the control information.

Provided is a method for transmission control. The method includes that a terminal device receives first information from a network device, where the first information is used for indicating whether data of a first service or of a first Radio Bearer (RB) is allowed to be transmitted using a store and forward mode of a satellite. There is also provided a corresponding terminal device and a corresponding network device.