1371 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.

A cellular network having radio access network (RAN) nodes where each RAN node includes (i) a central unit (CU) that resides on a public cloud of the cellular network, (ii) a distributed unit (DU) that resides on a private cloud of the cellular network such that the DU is in communication with the CU on the public cloud of the cellular network, and (iii) a radio unit (RU) under control of the DU. The cellular network also has network repository functions (NRFs) that are distributed on the cellular network and reside on at least the public cloud of the cellular network where the NRFs control operation of cell sites and local data centers (LDCs) on the cellular network. The network also has processors configured to control data collection edge applications residing with the NRFs that are distributed on the cellular network.

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.

Provided herein are techniques to facilitate conflict management in a shared Open Radio Access Network (O-RAN) architecture. In one instance, a method can be performed by a conflict manager of a near-real-time RAN intelligent controller of a shared RAN including radio unit (RU) nodes provided by a host operator. The method can include obtaining each of a requested radio unit (RU) configuration from each of a distributed unit (DU) node operated by each of a tenant operator and determining whether there are any conflicts among RU configuration parameters for each requested RU configuration. In one instance, upon determining one or more conflicts among the RU configuration parameters for each requested RU configuration, the method may include providing a response to each DU node indicating that each DU node is allowed to configure the plurality of RU nodes using each requested RU configuration in accordance with a modification.

Techniques for dynamically transferring cell traffic to reduce power consumption are disclosed. A method for dynamically transferring cell traffic to reduce power consumption begins by determining a load on radio units that service a geographic area. A determination is made that the load on a first radio unit fails to satisfy a reduce power threshold. A determination is made that the load on the first radio unit satisfies a transfer threshold. The load on the first radio unit is transferred to at least a second radio unit such that the first radio unit satisfies the reduce power threshold. Then, a component associated with the first radio unit to turn off is selected. The component is turned off, causing the first radio unit to enter a reduced-power state.

Apparatuses, systems, and techniques to perform an API to indicate an allocation of wireless signal processing operations. In at least one embodiment, a distributed unit and radio unit perform one or more operations based, at least in part, on an indicated allocation. In at least one embodiment, a processor comprising one or more circuits performs an application programming interface (API) to indicate an allocation of wireless signal processing operations between one or more Open Radio Access Network (O-RAN) radio units (RUs) and one or more O-RAN distributed units (DUs).

A method for providing enhanced resiliency of a radio access network (RAN) cell site having multiple sectors includes: providing a first radio unit (RU) simultaneously serving a first set of sectors with a first set of antenna streams; providing a second RU simultaneously serving at least a second set of sectors with a second set of antenna streams; providing a third RU simultaneously serving at least a third set of sectors with a third set of antenna streams; and reconfiguring, by a network management unit, at least the first set of sectors with a reduced antenna configuration in the case of one of a failure or shutdown of the first RU, and all sectors of the cell site are served by the second RU and the third RU to remain in service.

[Problem] Provided are a radio unit, a management device, and a communication control method that enable a company such as a microoperator to easily introduce a local network using a mobile communication system such as 5G. [Solution] A radio unit of the present disclosure is a radio unit belonging to a local network domain, and includes a communication processing unit that connects to a first distributed unit and performs first communication between the first distributed unit and a terminal device, and connects to a second distributed unit belonging to a public network domain and performs second communication between the second distributed unit and the terminal device or another terminal device.

Embodiments of the present disclosure provide a method of communication in a base station (BS). The BS comprising a distributed unit (DU) and at least one radio unit (RU), said DU performs High-PHY processing and said RU performs low-PHY processing. The method comprises transmitting, by the DU, a control information to the at least one RU using at least one of a c-plane message and a m-plane message, and data using au-plane message. The u-plane message is transmitted in one of a semi persistent and periodic technique. The transmitting of the at least one of a c-plane message and am-plane message indicates the u-plane data as one of a semi persistent and a periodic, said transmitting is valid for the u-plane messages carrying the u-plane data for a predetermined time period.

Apparatuses, systems, and techniques to perform an API to indicate an allocation of wireless signal processing operations. In at least one embodiment, a distributed unit and radio unit perform one or more operations based, at least in part, on an indicated allocation. In at least one embodiment, a processor comprising one or more circuits performs an application programming interface (API) to indicate an allocation of wireless signal processing operations between one or more Open Radio Access Network (O-RAN) radio units (RUs) and one or more O-RAN distributed units (DUs).

A cellular network having radio access network (RAN) nodes where each RAN node includes (i) a central unit (CU) that resides on a public cloud of the cellular network, (ii) a distributed unit (DU) that resides on a private cloud of the cellular network such that the DU is in communication with the CU on the public cloud of the cellular network, and (iii) a radio unit (RU) under control of the DU. The cellular network also has network repository functions (NRFs) that are distributed on the cellular network and reside on at least the public cloud of the cellular network where the NRFs control operation of cell sites and local data centers (LDCs) on the cellular network. The network also has processors configured to control data collection edge applications residing with the NRFs that are distributed on the cellular network.

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.

A method for optimizing uplink performance of Open Radio Access Network (O-RAN) system implementing O-RAN split option 7-2x-based uplink (UL) multiple-input multiple-output (MIMO) operation includes: selectively utilizing non-port reduced DMRS symbols and non-port reduced DMRS measurements to mitigate performance degradation of the UL MIMO in conditions involving high mobility for a user equipment (UE) and / or high interference. The non-port reduced DMRS symbols are DMRS symbols from multiple antenna streams before digital beamforming operation, and non-port reduced DMRS measurements are measurements derived from the non-port reduced DMRS symbols. A radio unit (RU) of the O-RAN system i) extracts the non-port reduced DMRS symbols, and ii) transmits the non-port reduced DMRS measurements to a distributed unit (DU) of the O-RAN system. The DU transmits combining and / or digital beamforming matrix elements to the RU for combining and / or digital beamforming matrix application.

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.

A wireless communication method whereinamong a signal processing function and a communication function provided by a wireless communication device,a centralized unit having a signal processing function transmits an optical signal having a form corresponding to a downstream radio signal to be a transmission target in the communication function, to a communication target radio unit which communicates with an external communication device among two or more radio units having a communication function connected to the centralized unit via an optical fiber, and performs beam forming control of the communication target radio unit,and the communication target radio unit, according to control of the centralized unit, communicates with the external communication device.

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.

The present disclosure relates to an antenna filter unit (AFU) (280) communicatively coupled to a Radio Frequency (RF) Front End Module (RFEM) (250). The AFU (280) comprises a plurality of cavity filters and a Multiple-Input-Multiple-Output (MIMO) antenna unit to enable beam forming to multiple users.

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).

Techniques are described for mitigating the negative effects of temporary loss of connectivity or temporary loss of service between a RU and a BU. In embodiments of the present disclosure, the radio unit is configured to transmit reference signals during a temporary loss of connectivity with the baseband unit to allow the UEs served by the radio unit to maintain synchronization with the radio unit and avoid or minimize radio link failures. Applying these techniques, the UEs served by the radio unit can maintain connection with the radio unit during the temporary outage and avoid the need to engage in Radio Resource Control (RRC) signaling to re-establish a connection with the radio unit and / or handover to neighboring radio units.

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.

Method for implementing a dynamical antenna array reconfiguration through a C-Plane within an O-RAN, the method includes: receiving, by a distributed unit (O-DU) from a radio unit (O-RU), configuration capability information via management plane (M-Plane) messaging from the O-RU; receiving, by the O-DU from a higher-layer network function, a request to reconfigure an antenna array; based on the configuration capability information from the O-RU and based on the request to reconfigure the antenna array from the higher-layer network function, determining, by the O-DU, an antenna array configuration supported by the O-RU; and applying, by the O-DU, the supported antenna array configuration via C-Plane messaging or M-Plane messaging to the O-RU.

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.

Disclosed is a method performed by a BBU system of a wireless communication network, comprising a distributed base station system (100), which comprises a BBU (110) and an RRU (120) connected over a fronthaul link (140). The method comprises determining first and second parts of beamforming weights based on a determined downlink channel estimate, and compressing the second part of the beamforming weights. The first part of the beamforming weights is determined for performing interference cancellation between user-layer signals, and the second part is determined for expanding the user-layer signals to antenna signals. The BBU then sends the first part and the compressed second part of the beamforming weights to the RRU, as well as the user-layer signals, over the fronthaul link (140). The RRU (120) then beamforms the user-layer signals according to the first and the second parts of the beamforming weights before sending the signals to a number of UEs (131, 132, 133).