978 results about "Radio unit" patented technology

A method performed by a radio unit (RU) is provided. The method includes receiving, by the RU, sounding reference signals (SRSs), receiving, by the RU from a distributed unit (DU) via a fronthaul interface, a control plane (C-plane) message including SRS configuration information, performing, by the RU, channel estimation based on the SRSs and the SRS configuration information, and performing, by the RU, beamforming on the basis of the channel estimation.

System and method for implementing advanced sleep modes in an O-RAN, the method includes collecting measurement data for training an AI / ML model; based on the collected measurement data, training an A / ML model and deploying the AI / ML model in the nRT-RIC; activating the trained AI / ML model in the nRT-RIC; monitoring energy optimization data for AI / ML model inference from an open radio unit (O-RU) via an E2 node; activating at least one advanced sleep mode (ASM) in the nRT-RIC; based on the activation of the ASM, collecting data to temporarily deactivate O-RU components; based on the activated AI / ML model and the ASM, evaluating, the collected data to temporarily deactivate O-RU components; based on the evaluating, requesting to initiate the ASM to the O-RU; based on the ASM initiation request, implementing the ASM, by the E2 node and the O-RU.

The present disclosure relates to a user equipment, UE, comprising the following. A receiver of the UE receives, from a base station, a first control signal that is common to a radio cell or to a group of UEs, to which the UE belongs, wherein the first control signal indicates a target bandwidth part, BWP, for operation. Processing circuitry of the UE operates according to the indicated target BWP.

An apparatus and method for time synchronization in 5th generation (5G) networks are presented. Time sync Reference Unit (TRU) instances are used to calculate synchronization deltas between Radio Units (RUs) and Distributed Units (DUs) and time offsets between antennas of an RU. Time synchronization data are collected from the antennas with reference signals synchronized using precision time protocol (PTP) signals, deltas calculated, and averaged to determine a synchronization offset that is applied to adjust the timing of the RUs and DUs. An artificial intelligence (AI) model is used to process timing data, accounting for environmental and network variables. The synchronization offsets are published for application adjustments, and feedback is collected to refine the AI model and enhance future synchronization accuracy.

The method for detecting the radio frequency channel connection relation and channel calibration of the base station antenna comprises the steps that a sample from a calibration network is received, the sample is a coupling signal of a radio frequency channel in the base station antenna and a signal obtained after a phase identifier is added to the calibration network, the phase identifier is a phase value, and the phase value is a phase value; the antenna port marking module is used for marking an antenna port connected with a remote radio unit (RRU) port in a radio frequency channel; and obtaining the antenna port actually connected with the RRU port according to the phase identifier. According to the technical scheme provided by the embodiment of the invention, no device needs to be added, no product size needs to be increased, and the problem of high-cost detection of the connection relationship between the RRU port and the antenna port in the radio frequency channel is effectively solved.

Techniques for cluster failure management in telecommunications systems are provided. In one example, a cellular network includes: a first radio unit (RU) that supports a first cell of the network, a second RU that supports a second cell, and a server system in communication with both RUs. The server system comprises a first server and a second server. A first pod acting as a distributed unit for the first RU is active on the first server and instantiated on the second server. A second pod acting as a distributed unit for the second RU is instantiated on the first server and active on the second server. A control plane executing on the first server manages execution of both pods, in response to determining that a pod is no longer active on a server, activates the pod on the other server.

Systems, devices, and automated processes are described to provide collection of wireless network status data, such as a 5G or other mobile network, and to automatically respond to queries regarding the status of the network. Systems and automated processes may obtain status data from a plurality of network components, for example a radio unit (RU), a distributed unit (DU), and a centralized unit (CU) associated with a cell site, ingest the obtained status data, including processing the status data with a machine learning model system, store the ingested status data in a data store, receive a user query related to the network, ingest the received user query using the MLM system, retrieve a result corresponding to the ingested query from the data store using the MLM system, generate, using the MLM system, a summary of the retrieved status data, and present the generated summary via a user interface.

There is provided a method of operating an Open Radio Access Network (O-RAN) having an O-RAN radio unit (O-RU) and an O-RU controller. The method includes sending, from the O-RU to the O-RU controller, (i) a message informing that the O-RU supports a feature such as (a) a plurality of delay management profiles, and / or (b) a plurality of transmission window sizes, and (ii) a report of capabilities of the O-RU, where the report includes a parameter such as (a) a quantity of supported delay management profiles, (b) supported window sizes for each of the plurality of delay management profiles, and / or (c) a supported window offset for each of the plurality of delay management profiles. The O-RU controller configures the O-RU based on the feature and the parameter.

Disclosed is a method performed by a first radio unit, RU, (140) of a distributed base station system (100), the first RU (140) comprising Ni antennas (141, 142), the distributed base station system (100) further comprising a first aggregation unit, AU, (120) connected to the first RU (140) via a first AU fronthaul, FH, link (145) and a second RU (150) connected to the first AU (120) via a second AU FH link (155), the second RU (150) comprising N2 antennas (151, 152), the distributed base station system (100) further comprising a BBU (110) connected to the first AU (120) over a first BBU FH link (115). The method comprises receiving, from a first number of UEs (181, 182, 183), uplink, UL, data streams comprising first user layers of the first number of UEs (181, 182, 183). The method further comprises obtaining a first channel estimate of a communication channel between the first number of UEs (181, 182, 183) and the first RU (140), determining first intermediate beamforming weights, BFW, sending, to the first AU (120), the first intermediate BFW and obtaining first part of BFW based on the first UL channel estimate. The method further comprises beamforming the received UL data streams based on the obtained first part of BFW into intermediately-beamformed UL data streams that are sent to the first AU (120), or receiving, from the first AU (120), first RU-adapted second part of BFW determined based on an inverse calculation of a combination of the first intermediate BFW and second intermediate BFW, determined by the second RU (150), determining final BFW for the first RU based on the first part of BFW and the first RU-adapted second part of BFW, beamforming the UL data streams of the first user layers based on the determined final BFW for the first RU into completely beamformed UL data streams, and sending the completely beamformed UL data streams to the first AU (120).

An example communication system includes a distributed unit of a fronthaul communication system architecture, wherein the distributed unit is in communication with a core network of the communication system, a radio unit of the fronthaul communication system architecture, wherein the radio unit is electrically coupled with at least one cellular antenna, and the radio unit is configured to transmit and receive wireless cellular signals, and a wireless communication link between the distributed unit and the radio unit. The wireless communication link includes a first system-on-chip (SoC) device electrically coupled with the radio unit, and a second SoC device electrically coupled with the distributed unit, wherein the first SoC device and the second SoC device are configured to wirelessly transmit communication signals between the radio unit and the distributed unit at a frequency of at least sixty Gigahertz.

A method, system and apparatus are disclosed. A method in a network node is described. The network node includes a distributed unit (DU), where the DU is configured to communicate with a radio unit (RU) via a fronthaul interface (FI). The FI is in a signal path between the DU and the RU. The method includes selecting a plurality of identifiers to create one or more subgroups within an identifier group. The identifier group is represented by a group identifier, and each identifier represents a processing entity in the RU. The method also includes creating the one or more subgroups within the identifier group and determining one or more section extensions usable by one or more control plane (C-plane) messages sent with the group identifier to specify one subgroup of the one or more subgroups. The one subgroup is associated to a C-plane section.

A method, apparatus, and system for Service Management and Orchestration (SMO) network energy saving (NES) using an O1 interface may be provided and may include, receiving, by a SMO of an Open Radio Access Network (O-RAN), NES information from at least one of a O-RAN Distributed Unit (O-DU) and a O-RAN Centralized Unit (O-CU) wherein the NES information includes capability exposing information received from an O-RAN Radio Unit (O-RU); determining, by the SMO based at least in part on the NES information, whether to activate an NES use-case; based on determining to activate the NES use-case, sending, by the SMO, a trigger to activate the NES use-case; and receiving, by the SMO, a first notification indicating a change in a state of the NES use-case.

Systems, devices, and automated processes are described to provide collection of wireless network status data, such as for a 5G or other mobile network, and to automatically created user interactable dashboards providing various status information regarding the operation of the network. Systems and automated processes may obtain status data from a plurality of network components, for example radio units (RU), distributed units (DU), and centralized units (CU) associated with a cell sites, determine an operational state for each of the network components based on the obtained data, aggregate the determined operational states to determine an operational state of the cell sites, generate a dashboard having an indication of the operational states, provide the dashboard to a user interface, receive a user selection from the dashboard, and provide a report detailing the determined operational state.

Methods, systems, and devices for wireless communication are described. Some wireless communications network may operate in accordance with an open-RAN (ORAN) network specification which may support functional splitting between the ORAN distributed unit (O-DU) and the ORAN radio unit (RU). The O-DU may communicate with the O-RU using control messaging. The control message may include a resource resource element (RE) mask and a resource symbol mask, the resource RE mask indicating frequency resources to be allocated for a reference signal transmission across a set of antenna ports and the resource symbol mask indicating time resources to be allocated for the reference signal transmission. Additionally or alternatively, the O-DU may transmit a control message including a puncturing resource RE mask indicating frequency resources for applying a puncturing pattern and a symbol mask indicating time resources for applying the puncturing pattern during a transmission.

Disclosed herein are a small cell base station antenna apparatus and a connector for same. The small cell base station antenna apparatus comprises: a radio Unit (RU); at least one antenna module installed to be tiltable and steerable with respect to the a radio unit; and multifunction link configured to mediate the installation of each antenna module to the radio unit, wherein the multifunction link comprises: a center body; a first fixture connected between one end of the center body and the antenna module; and a second fixture connected between the other end of the center body and the radio unit, and wherein the first fixture and the second fixture are coupled via a ball joint to enable the antenna module to be installed to perform tilting rotation and steering rotation motions with respect to the radio unit.

A method and device for testing a base station comprising one or more radio units and a baseband unit connectable to the one or more radio units, wherein the device includes a configuration module configured to generate a first test case configuration associated with the one or more radio units and the baseband unit, where the first test case configuration includes a first protocol stack including a first protocol associated with a first layer and a second protocol associated with a second layer, and where a first set of protocol parameters associated with the first protocol is in a first namespace and a second set of protocol parameters associated with the second protocol is in a second namespace that is distinct from the first name space.

The present disclosure describes a method, and a system to identify call flows in Radio Unit (RU) or Centralized Unit (CU) and Distributed Units (DU) for cell-to-pod remapping. The method comprising receiving call flow traffic data of a plurality of DUs from an associated CU. Subsequently, the method comprises determining a first DU and a second DU among the plurality of DUs based on the call flow traffic data. Thereafter, the method comprises determining a new configuration for each of the first DU and the second DU based on at least one of the call flow traffic data, historical data, and pre-determined rules using a prediction model. Lastly, the method comprises transmitting the new configuration for each of the first DU and the second DU to the associated CU for remapping of a RU.

One embodiment is a system having a master unit coupled to first and second base station sources having different OTA frame boundary timings, where an access point coupled to the master unit receives fronthaul data for the first and second base station sources, determines a common OTA frame boundary timing, and aligns OTA symbols and frames for the first and second base station sources to the common OTA frame boundary timing. Another embodiment is a system having a base station synchronized with a timing grandmaster and a master unit, synchronized with the timing grandmaster, coupled to the base station. The master unit determines the time of day using the synchronization, identifies a system frame and subframe number using the time of day, acquires configuration information for communications with the base station using the system frame and subframe number, and identifies frame boundary timing using the configuration information.

A test device tests conditions associated with a fronthaul in an Open Radio Access Network (O-RAN). The test device can field test an O-RAN radio unit (O-RU) installed at a cell site by emulating an O-RAN distributed unit (O-DU) in the O-RAN connected to the O-RU via the fronthaul of the O-RAN. The testing includes testing connectivity of the O-RU to the fronthaul. The testing includes executing managing plane (M-plane) and synchronization plane (S-plane) messaging to test management session establishment, device setting testing, and master clock synchronization testing. Additionally, optical insertion loss in the fronthaul and frequency and power of signals transmitted from the O-RU can be tested.

Apparatuses, systems, and techniques to perform dynamic mapping between one or more Open Radio Access Network (O-RAN) radio units (RUs) and one or more O-RAN distributed units (DUs). For example, processors or computing systems to perform switching of mappings between open radio unit (O-RU) and open distributed unit (O-DU) in an open radio access network (O-RAN). In at least one embodiment, a processor including circuitry performs a program to cause reassigning of mappings between radio unit (RUs) and distributed unit (DUs) without the need of restarting or reconfiguration of RUs and / or DUs in an O-RAN network.

The present disclosure relates to systems, methods, and computer-readable media for increasing resiliency in distributed units of a virtual radio access network (vRAN) of a telecommunications network (e.g., a 5G telecommunications network), particularly when performing a planned handover operation between the distributed units. The examples described herein specifically relate to implementing an inter-distributed unit handover between distributed units that are serviced by the same radio unit. In some examples, this handover is initiated by a middlebox entity that is positioned between the distributed units and a centralized unit. In some instances, features of the middlebox entity are implemented within the framework of a centralized unit. By allowing a quick handover as described herein, the distributed units can provide uninterrupted service to a UE while allowing the distributed units to perform various upgrades or modifications to the distributed unit without service interruptions.

A method for wireless communication performed by a distributed unit (DU) includes receiving, from a radio unit (RU), a management-plane message including information about a control-plane message supported by the RU, generating, based on the management-plane message, a first control-plane message including a field indicating a first user equipment identifier (UE ID) and a first section extension field, and transmitting, to the RU through a fronthaul interface, the first control-plane message during a time period longer than a slot. The first section extension field includes a parameter indicating a number of UE IDs of a user associated with the first UE ID.

Various arrangements of a hybrid cellular network system are detailed herein. The system can include a cellular radio access network (RAN) comprising a plurality of base stations (BSs). Each BS can include an antenna, a physical router; a radio units (RU), and a distributed unit (DU). The system can include multiple pass-through edge data centers (P-EDCs). Each P-EDC is in communication with a different subset of BSs. The system can include an aggregation data center (ADC) in communication with the P-EDCs. The system can further include a breakout edge data center (EDC) executed at an EDC of a cloud computing platform, the B-EDC including a second transit gateway and a virtual router.

Various hybrid cellular network arrangements are presented herein. Multiple light base stations may be present, in each light base station of the plurality of light base stations, a radio unit and an antenna may be present, but not a distributed unit. A local data center can be present, which can include a distributed unit host server system. This system can be communicatively connected with each light base station of the plurality of light base stations. The distributed unit host server system of the local data center can host an instantiation of a distributed unit for each light 5G base station of the plurality of light base stations. The local data center can be geographically remote from the light 5G base stations.

A communication system includes a core network and a radio access network including a central unit communicatively coupled to (i) the core network via a backhaul network, and (ii) a plurality of distributed units via a fronthaul network. Each of the distributed units is co-located with a radio unit and comprises a multi-access edge computing (MEC) module. The MEC module of each of the distributed units comprises one or more processors and memory storing one or more programs to be executed by the one or more processors, the one or more programs including instructions for controlling a time-sensitive networking (TSN) configuration and executing one or more MEC applications using the TSN configuration.

The present invention relates to a small cell base station antenna apparatus and, more particularly, comprises: a rotatable housing having an internal space open in the back / forth direction; a steering ball joint unit coupled to the rear side of the open internal space of the rotatable housing and guiding the rotatable housing to enable steering rotation in thereof the horizontal direction with reference to an arbitrary rotation center point in the internal space of the rotatable housing; a tilting ball joint unit which is coupled to the front side of the open internal space of the rotatable housing, and tilted and rotated in the vertical direction while the front end thereof, to which an antenna module is coupled, is guided by the rotatable housing with reference to the arbitrary rotation center point of the internal space; and a multi-strand coaxial cable provided for electrical connection between a radio unit (RRH) and the antenna module.

A network node in a communications network can be configured to provide a radio unit, RU The network node can determine (1240) a symbol pattern that the RU is capable of using to transmit a signal-to-interference-plus-noise, SINR, report to a distributed unit, DU. The network node can transmit (1250) an indication to the DU of the symbol pattern that the RU is capable of using to transmit the SINR report to the DU. The network node can transmit (1260) the SINR report to the DU using the symbol pattern.

There is provided a method performed by a wireless device for communicating with a network node in a wireless communication network. The method includes using a field in a Master Information Block (MIB) received by the wireless device, as an indication of a presence of an extended MIB (eMIB) and identifying which candidate resource of at least one candidate resource that contains the eMIB based on the indication of the presence of the eMIB. There is also provided a corresponding wireless device for communicating with a network node, a method perform by a network node, and a network node.

The embodiment of the invention provides a remote radio unit (RRU) merging method, a base station, a terminal and a storage medium. The RRU merging method comprises the following steps: the base station sends different channel state information reference signal (CSI-RS) resources under different RRUs; the plurality of CSI-RS resources are used for the terminal to carry out layer 1 reference signal receiving power L1-RSRP measurement on the plurality of CSI-RS resources; receiving a target CSI-RS resource sent by the terminal and an L1-RSRP measurement result corresponding to the target CSI-RS resource; the target CSI-RS resources are the CSI-RS resources corresponding to the first N L1-RSRP measurement values which are ranked from large to small, and the first N L1-RSRP measurement values are ranked from large to small; n is a positive integer; based on the L1-RSRP measurement result, determining an RRU to which the terminal belongs from target RRUs corresponding to the target CSI-RS resources; and performing uplink radio frequency combination according to the affiliated RRU.

According to embodiments, a method performed by a radio unit (RU) may comprise an operation of receiving configuration information for a remote interference management (RIM)-reference signal (RS) from a distributed unit (DU). The method may comprise an operation of receiving a message containing bit data for the RIM-RS from the DU. The method may comprise an operation of generating a complex-valued symbol corresponding to the bit data for the RIM-RS. The method may comprise an operation of generating a RIM-RS signal by performing at least one of phase rotation or phase difference compensation for the complex-valued symbol on the basis of the configuration information. The method may comprise an operation of generating a baseband signal corresponding to the RIM-RS signal on the basis of an inverse fast fourier transform (IFFT) and cyclic prefix (CP) insertion of the RU.