1334 results about "Radio access network" patented technology

Embodiments include methods method for a user equipment (UE) configured to communicate with a radio access network (RAN) via a master cell group (MCG) provided by a first RAN node and a secondary cell group (SCG) provided by a second RAN node. Such methods include, based on detecting a failure condition in the MCG and determining that the SCG is neither deactivated nor suspended, transmitting an MCG failure report to the second RAN node via the SCG and initiating a timer associated with a fast MCG recovery procedure. Such methods include storing information associated with the fast MCG recovery procedure and subsequently transmitting, to a third RAN node, a message including the information associated with the fast MCG recovery procedure. Other embodiments include complementary methods for the first RAN node and the third RAN node, as well as UEs and RAN nodes configured to perform such methods.

A wireless transmit-receive unit (WTRU) may camp on a non-terrestrial network (NTN) cell and evaluate one or more terrestrial network (TN) cells, for example, to determine whether to change a radio access network (RAN) based notification area (RNA). In examples, the WTRU may receive an indication to change from a first TN cell to the NTN cell. The WTRU may perform, based on the indication, a cell reselection to the NTN cell. The first TN cell may be associated with a first RNA. The WTRU may evaluate a second TN cell associated with a second RNA. The WTRU may determine that a cell reselection condition associated with the second TN cell is satisfied. The WTRU may perform, based on the determination that the cell reselection condition is satisfied, a cell reselection to the second TN cell.

A wireless communication network is described, which includes one or more relay devices and one or more user devices, UEs. A relay devices provides a first bidirectional link having first relay resources, and a second bidirectional link having second relay resources, the first and second bidirectional links using a first interface for a communication with a radio access network, RAN, of the wireless communication network, e.g., the Uu interface. A UE is to perform a direct communication with a network entity of the wireless communication network via the relay device on one or more the first relay resources or on one more of the first and second relay resources using a second interface for a device-to-device, D2D, or sidelink, SL, communication in the wireless communication network, e.g., the PC5 interface.

Methods, systems, and devices for wireless communications are described. A remote unit (RU) may transmit, to a distributed unit (DU), an indication of a skew time parameter associated with providing compensated samples for a plurality of symbols associated with a slot. The RU may store a set of samples associated with a first subset of the plurality of symbols associated with the slot, the storing based on a processing delay associated with receiving demodulation reference signals during a portion of the first subset of the plurality of symbols associated with the slot. The RU may transmit, to the DU, a burst of compensated samples for the plurality of symbols in a transmission window that is offset in time from a beginning symbol of the slot according to the skew time parameter.

This application provides a radio access network architecture. The radio access network architecture includes a cluster node and a serving node. The serving node provides task scheduling and executing functions, and the cluster node provides a region-level centralized collaboration function for the serving node and a collaboration function between cross-region cluster nodes.

An Open Radio Access Network (O-RAN) communication system includes a GNB Central Unit Control Plane (GNB-CUCP) to establish a connection with a Near-RT RIC via an E2 interface; a User Equipment (UE); a plurality of cells in a Tracking Area (TA) of the GNB-CUCP; and an O-RAN Near-Real Time (Near-RT) RAN Intelligent Controller (RIC) to host an xApp and initiate a subscription procedure with the UE. The GNB-CUCP sends cell location information of the UE to the Near-RT RIC upon a UE context release procedure, the Near-RT RIC creates and maintains a record of the cell location information received from the GNB-CUCP via the xApp, and the GNB-CUCP pages the UE in a subset of cells from the plurality of cells in the TA, the subset of cells corresponding to the record of cell location information created and maintained by via the xApp.

Embodiments include methods for a user equipment (UE) configured to communicate with a radio access network (RAN) node via a serving cell. Such methods include obtaining a configuration that defines one or more conditions that trigger lower layer measurements on one or more candidate cells for L1 / L2 inter-cell mobility. Such methods include performing one or more of the following measurements: lower layer measurements of the serving cell, first L3 measurements of the serving cell, and second L3 measurements of at least one of the candidate cells. Such methods include, based on detecting that the performed measurements fulfil at least one of the conditions, initiating lower layer measurements of at least one candidate cell associated with the fulfilled at least one condition, and sending to the RAN node a lower layer measurement report that includes results of the lower layer measurements performed on the at least one candidate cell.

A method of scheduling data transmission in a radio access network is provided. The radio access network comprises a scheduler configured to orchestrate communication of data between one or more base stations and a plurality of User Equipments, UEs, according to a set of instructions. The method comprises receiving real-time network usage data. The method further comprises dynamically modifying the set of instructions based on the network usage data. The method further comprises implementing the modified set of instructions so that the scheduler is configured to orchestrate communication of data between the one or more base stations and the plurality of UEs according to the modified set of instructions.

A radio access network (RAN) participating in a multicast and broadcast services (MBS) session can implement a method for managing MBS communication. The method includes: (a) transmitting, to a user equipment (UE), a first command to transition from a connected state to an inactive state in which a radio connection between the UE and the RAN is suspended, the command including a first multicast configuration with an MBS radio bearer (MRB) parameter, for receiving MBS data; (b) transmitting, to the UE operating in the inactive state, MBS data according to the first multicast configuration; (c) receiving, from the UE, a request to resume the radio connection; and (d) transmitting, to the UE and in response to the request, a second command to resume the radio connection, the command including a second multicast configuration for continuing to receive the MBS data in the connected state.

Aspects relate to paging optimizations in relay operations. A remote UE may provide one or more paging identifiers identifying the remote UE to one or more relay UEs over respective relay links therebetween. Each relay UE may provide the paging identifier(s) of the remote UE to a respective serving radio access network (RAN) node, which may further provide the paging identifier(s) of the remote UE to an anchor RAN node and / or core network node to optimize paging of the remote UE. For example, paging of the remote UE may be limited to the cell(s) including the relay UE(s). The remote UE may further be configured to select to receive the paging message from one of the relay UEs or may receive the paging message from each of the relay UEs. A relay UE may further transmit a page reject message to reject a paging message.

Embodiments include methods for a first radio access network (RAN) node configured to serve one or more cells. Such methods include identifying a first cell served by a RAN node with which the first RAN node does not have a connection for communication and, in response to identifying the first cell, obtaining the following information from a tracking node associated with the RAN: an identifier of a second RAN node that serves the first cell, and an indication that a connection configuration for the identified second RAN node is available from one or more third RAN nodes. Such methods include obtaining the connection configuration for the second RAN node from one of the indicated third RAN nodes. Other embodiments include complementary methods for the tracking node and the second RAN node, as well as network nodes or functions configured to perform such methods.

In one aspect, a computer-implemented method performed by a first network node in a radio access network (RAN) is provided. The method includes obtaining an output from a machine learning (ML) model. The method includes obtaining an output feedback identifier for the output, wherein the output feedback identifier uniquely identifies the output. The method includes generating a first message, wherein the first message comprises the output feedback identifier. The method includes transmitting, towards a third network node, the first message comprising the output feedback identifier.

A method and apparatus for notifying of a disaster situation by a radio access network (RAN) node. When the RAN node detects that a problem in an interface between the RAN node and a core network related to a public land mobile network (PLMN) has occurred, the RAN node stops transmitting a broadcast message currently being transmitted to a user equipment (UE), and transmits a disaster broadcast message to the UE. The disaster broadcast message includes: (i) information indicating that a disaster condition applies to a first PLMN; and (ii) information regarding a second PLMN related to the disaster condition. The disaster condition corresponds to the problem in the interface between the RAN node and the core network related to the first PLMN. The UE adjusts priorities of an PLMN selection based on information included in the disaster broadcast message for selecting the second PLMN.

Various embodiments herein provide techniques related to communication between a non real-time (Non-RT) radio access network (RAN) intelligent controller (RIC) and a near real-time (Near-RT) RIC. Specifically, the Non-RT RIC may identify physical positioning information related to a user equipment (UE); generate enrichment information (EI) related to the physical positioning information; and transmit the EI over an A1 interface to the Near-RT RIC. Other embodiments may be described and / or claimed.

Embodiments include methods for a user equipment (UE) configured to operate in a cell served by a radio access network (RAN) node. Such methods include receiving at least the following information from the RAN node during a first procedure: downlink (DL) data associated with an application hosted by the UE, and a timing advance (TA) command applicable to UE uplink (UL) transmissions to the RAN node. Such methods include initiating a time alignment timer (TAT) in response to receiving the TA command. Such methods include, after completion of the first procedure and based on determining that the TAT has not expired, transmitting to the RAN node one or more messages according to a timing adjusted based on the TA command. Other embodiments include complementary methods for a RAN node, as well as UEs and RAN nodes configured to perform such methods.

In a registration method, a user equipment (UE) includes a non-terrestrial network (NTN) communication module and a mobile communication module. The mobile communication module obtains registration information of the NTN communication module. After the mobile communication module registers with a terrestrial network (TN) core network (CN), the NTN communication module performs a registration procedure of an NTN core network (NTN-CN) via the mobile communication module, a TN radio access network (RAN), and the TN-CN. After finding an NTN radio access network (NTN-RAN), the NTN communication module accesses the NTN-CN. In this way, after the UE finds an NTN, because the UE has performed the registration procedure of the NTN in a TN, and the NTN-CN stores registration information of the UE, the UE does not need to perform the registration procedure in the NTN.

Approaches are described herein for mitigating terrestrial network (TN) uplink and downlink co-channel interference on non-terrestrial network (NTN) uplinks using scheduled orthogonalization. The scheduled orthogonalization can include temporal, spectral, and / or code-based orthogonalization. For example, there is a terrestrial radio access network (T-RAN) and a non-terrestrial RAN (NT-RAN) having some amount of coordination. For each TN cell in each of several temporal frames, a determination is made as to whether there is a potential co-channel interference condition between the TN cell and an NTN beam for that temporal frame. If so, a first orthogonalization scheme is scheduled for application to the TN communications for the cell in the temporal frame, and a second orthogonalization scheme is scheduled for application to the NTN communications for the beam in the temporal frame, such that the first and second orthogonalization schema are orthogonal in at least one of time, frequency, or code.

According to various examples, a radio access network controller is described comprising a processor configured to determine whether a mobile terminal is located at a center region of a radio cell of a communication network or an edge region of the radio cell, and control the communication network to serve the mobile terminal by a plurality of radio units of a plurality of radio cells using coherent joint transmission by allocating the same time, frequency, code and spatial resources, if the processor determines that the mobile terminal is in the edge region of the radio cell and control the communication network to serve the mobile terminal by one radio unit of the radio cell using single-cell processing if the processor determines that the mobile terminal is in the center region of the radio cell.

A method can include receiving, by a base station distributed unit (BS-DU) from a base station central unit (BS-CU), one or more first messages. The first messages can include a prediction of a coverage and capacity issue of a first cell. The coverage and capacity issue can include at least one of a coverage issue or a cell edge capacity issue. The prediction can also include an identifier of the first cell, for example, corresponding to the issue. The method can further include sending, by the BS-DU to the BS-CU and after receiving the one or more first messages, one or more second messages that include an indication of a coverage modification of one or more second cells.

Systems, methods, and instrumentalities are described herein related to providing information about multi-modal services to a radio access network (RAN). In examples, a first network node may receive information associated with an application layer session and a multi-modal service identifier (MMSID) that may be associated with the application layer session. The first network node may generate a policy and charging control (PCC) rule for a wireless transmit / receive unit (WTRU) using the received information. The MMSID may be used to generate an association ID. The PCC rule may be sent to a second network node. The PCC rule may include the association ID.

Embodiments include methods for a user equipment (UE) configured to communicate with a radio access network (RAN) node comprising a central unit (CU) and a distributed unit (DU) that provides a serving cell for the UE. Such methods include receiving from the DU a lower layer signalling message indicating that the UE should perform L1 / L2-based inter-cell mobility to a first candidate cell provided by a candidate DU. The lower layer signaling message includes an indicator or identity of the first candidate cell, and an indication of a first TCI state to be used by the UE for communicating with the first candidate cell. Such methods include performing) an L1 / L2 mobility procedure towards the first candidate cell and communicating in the first candidate cell based on the first TCI state. Other embodiments include complementary methods for serving and candidate DUs, as well as UEs and DUs configured to perform such methods.

A method and a system of configuring custom operator defined rules for managing radio resources of user equipment in a wireless communication system. The system includes a plurality of User Equipment (UE), a plurality of wireless base stations configured to host Centralized Unit (CU) and Distributed Unit (DU) software, a rules engine, a first Application Programming Interface (API) wherein the rules engine is programmed with operator defined rules via the first API, and a second API coupled with the CU and DU software and configured to invoke the rules engine upon an occurrence of one or more defined events, wherein one or more of the operator defined rules is invoked via API calls to execute operator defined rules that match one or more inputs provided by at least one of the CU and DU hosted by at least one of the plurality of base stations.

Methods and apparatus of monitoring artificial intelligence (AI) model in radio access network (RAN) are disclosed. The apparatus includes a receiver that receives a first configuration signalling for monitoring performance of one or more Artificial Intelligence (AI) models that are activated, and a second configuration signalling for reporting a result of the performance monitoring; a processor that generates a performance report of the AI models according to the first configuration signalling and the second configuration signalling; and a transmitter that transmits the performance report.

An example Radio Access Network Intelligent Controller (RIC) determines that operation of a first instance of an application satisfies one or more criteria for scaling the application, the first instance of the application processing cluster messages generated by the RAN. The RIC, in response to determining that the operation of the first instance of the application satisfies the one or more criteria, determines a first virtual cluster and a second virtual cluster of the RAN. The first virtual cluster includes first one or more resources of the RAN and the second virtual cluster includes second one or more resources of the RAN. The RIC instantiates a second instance of the application. The RIC routes cluster messages from the second one or more resources of the second virtual cluster to the second instance of the application.

The disclosure relates to a 5th generation (5G) or pre-5G communication system for supporting a data transmission rate higher than that of 4th generation (4G) communication systems, such as long term evolution (LTE). A method of performed by a radio access network intelligence controller (RIC) for guaranteeing a service level agreement in a wireless communication system is provided. The method includes transmitting, to an open radio access network distributed unit (O-DU), a subscription request message including configuration information for reporting whether the service level agreement is satisfied for each network slice or network slice group, receiving, from the O-DU through an E2 interface, an instruction message including information about whether the service level agreement is satisfied, and transmitting, to the O-DU, a control message including scheduling information set based on the instruction message.

An example computing system includes a Radio Access Network (RAN) Intelligent Controller (RIC). The RIC includes storage media configured to store configuration update information. The configuration update information includes one or more configuration parameters and is indicative of a change in the one or more configuration parameters by an application of the RIC. The RIC includes a conflict manager. The conflict manager is configured to determine, based on the configuration update information that a first parameter associated with the one or more configuration parameters has been previously updated. The conflict manager is configured to determine, based on the first parameter being previously updated, a conflict. The conflict manager is configured to apply, based on determining the conflict, a policy to determine to update the one or more configuration parameters and update the one or more configuration parameters in accordance with the policy.

The invention provides a communication method and a communication device for a wireless access network and a core network, and the method comprises the steps that terminal equipment can determine a first reference point list, the first reference point list comprises a plurality of points where beams are projected to the ground, and a second beam is determined based on the first reference point list and the motion direction of a first satellite. When the access beam is selected, the movement direction of the first satellite is considered, so that the problem of beam switching in the access process caused by satellite movement can be avoided, a broadcast beam with the largest beam coverage range in the movement direction is selected based on the reference points in the first reference point list, and smooth access is ensured.

Disclosed is a method and device for dynamically modifying radio access network (RAN) configuration at a user plane during a RAN layer processing. The method comprises determining a data packet loss ratio during a transmission of a plurality of data packets via a transmission channel. The method further comprises comparing the determined data packet loss ratio with a first threshold value to determine good channel conditions. Based on a result of comparison, the method comprises determining whether a current condition of the transmission channel is reliable or unreliable. Further, the method comprises incrementing a timestamp corresponding to a time at which the current condition of the transmission channel is determined as reliable. Subsequently, the method comprises dynamically modifying the RAN configuration at the user plane upon a determination that the incremented timestamp value is greater than the second threshold value.

There is provided mechanisms for performance degradation handling between a first radio access network node that operates in a first frequency band and provides network access for subscribers of a first mobile network operator and a second radio access network node that operates in a second frequency band and provides network access for subscribers of a second mobile network operator. A method is performed by the first radio access network node. The method comprises identifying performance degradation impacting the network access for the subscribers of the first mobile network operator. The performance degradation is identified as originating from a particular direction relative the first radio access network node and as caused by the second radio access network node. The method comprises providing, towards the second radio access network node, an indication of the performance degradation. The indication specifies the particular direction and identifies the second radio access network node as causing the performance degradation.