Indication of non-stationary interference conditions

Abstract

Various aspects of the present disclosure generally relate to wireless communications. In some aspects, a distributed unit (DU) may receive an indication of a non-stationary interference condition from a radio unit (RU) associated with the DU. The DU may use the indication to adjust a parameter of at least one cell associated with the RU. Numerous other aspects are described.

Description

[0001] Cross-references to related applications

[0002] This patent application claims priority to U.S. Patent Application No. 18 / 469,380, filed September 18, 2023, entitled “INDICATION OF NON-STATIONARY INTERFERENCE CONDITION,” which is assigned to the assignee of this application. The disclosure of the earlier application is considered part of this patent application and is incorporated herein by reference. Technical Field

[0003] All aspects of this disclosure relate to wireless communication, and to techniques and apparatus for indicating non-stationary interference conditions. Background Technology

[0004] Wireless communication systems are widely deployed to provide a variety of telecommunications services, such as telephone, video, data, messaging, broadcasting, or other similar services. These wireless communication systems may employ multiple access technologies that enable communication with multiple users by sharing available wireless communication system resources.

[0005] Despite significant technological advancements in wireless communication systems over the years, challenges remain. For example, complex and dynamic environments can still attenuate or block signals between wireless transmitters and receivers. Therefore, there is a continuous expectation for improving the technical performance of wireless communication systems, including, for example: improving communication speed and data carrying capacity; improving the efficiency of shared communication media; reducing the power used by transmitters and receivers during communication; improving the reliability of wireless communication; avoiding redundant transmission and / or reception and related processing; improving the coverage area of ​​wireless communication; increasing the number and types of devices that can access the wireless communication system; increasing the ability of different types of devices to communicate with each other; and increasing the number and types of available wireless communication media. Therefore, there is a need for further improvements to wireless communication systems to overcome the aforementioned technical challenges and other obstacles. Summary of the Invention

[0006] Some aspects described herein relate to a method of wireless communication performed by a distributed unit (DU). The method may include receiving an indication of a non-stationary interference condition from a radio unit (RU) associated with the DU. The method may include using the indication to adjust parameters of at least one cell associated with the RU.

[0007] Some aspects described herein relate to a method for wireless communication performed by a RU. The method may include sending an indication to a DU associated with the RU regarding a non-stationary interference condition at that RU. The method may also include receiving adjustments to parameters of at least one cell associated with the RU using that indication.

[0008] Other aspects provide: an apparatus capable of operating to, configured to, or otherwise adapted to perform any or more of the foregoing methods and / or those methods described herein with reference to the accompanying drawings and illustrated therein; a non-transitory computer-readable medium comprising processor-executable instructions that, when executed by a processor of the apparatus, cause the apparatus to perform the foregoing methods and / or those methods described herein with reference to the accompanying drawings and illustrated therein; a computer program product embodied on a computer-readable storage medium including code for performing the foregoing methods and / or those methods described herein with reference to the accompanying drawings and illustrated therein; and / or an apparatus comprising components for performing the foregoing methods and / or those methods described herein with reference to the accompanying drawings and illustrated therein. By way of example, an apparatus may include a processing system, a device having a processing system, or a processing system cooperating via one or more networks.

[0009] The features and technical advantages of the examples according to this disclosure have been summarized rather extensively above in order to better understand the detailed description below. Additional features and advantages will be described below. The disclosed concepts and specific examples can be readily used as the basis for modifying or designing other structures for achieving the same purpose as this disclosure. Such equivalent constructions do not depart from the scope of the appended claims. The characteristics of the concepts disclosed herein, in both their organization and manner of operation, and the associated advantages, will be better understood by considering the following description in conjunction with the accompanying drawings. Each of the drawings provided is for illustrative and descriptive purposes and not as a definition of limitation of the claims.

[0010] While aspects are described herein by way of example, those skilled in the art will understand that such aspects can be implemented in many different arrangements and scenarios. The techniques described herein can be implemented using different platform types, devices, systems, shapes, sizes, and / or package arrangements. For example, some aspects can be implemented via integrated chip implementations or other devices based on non-modular components (e.g., end-user equipment, vehicles, communication equipment, computing devices, industrial equipment, retail / shopping devices, medical devices, and / or artificial intelligence devices). Aspects can be implemented in chip-level components, modular components, non-modular components, non-chip-level components, device-level components, and / or system-level components. Devices incorporating the described aspects and features may include additional components and features for implementing and practicing the claimed and described aspects. For example, the transmission and reception of wireless signals may include one or more components for analog and digital purposes (e.g., hardware components including antennas, radio frequency (RF) chains, power amplifiers, modulators, buffers, processors, interleavers, adders, and / or summers). The aspects described herein are intended to be practiced in a wide variety of devices, components, systems, distributed arrangements, and / or end-user equipment of various sizes, shapes, and configurations. Attached Figure Description

[0011] To gain a full understanding of the foregoing features of this disclosure, a more specific description of the invention, briefly outlined above, can be obtained by referring to various aspects, some of which are illustrated in the accompanying drawings. However, it should be noted that the drawings illustrate only certain typical aspects of this disclosure and are therefore not to be considered as limiting its scope, as other equally valid aspects are permissible in this description. The same reference numerals in different drawings may identify the same or similar elements.

[0012] Figure 1 An example of a wireless communication network according to this disclosure is depicted.

[0013] Figure 2 Various aspects of an example base station and user equipment (UE) according to this disclosure are described.

[0014] Figure 3 An example decomposed base station architecture according to this disclosure is described.

[0015] Figure 4A , Figure 4B , Figure 4C and Figure 4D Various aspects of the data structure of the wireless communication network according to this disclosure are described.

[0016] Figure 5 This is a diagram illustrating an example of signaling associated with the operation of an interference-aware base station in a distributed topology according to this disclosure.

[0017] Figure 6 This is a flowchart of an example method for wireless communication.

[0018] Figure 7 This is a flowchart of an example method for wireless communication.

[0019] Figure 8 The diagram illustrates an example of a specific implementation of the code and circuitry for a communication device according to this disclosure.

[0020] Figure 9 The diagram illustrates an example of a specific implementation of the code and circuitry for a communication device according to this disclosure. Detailed Implementation

[0021] Various aspects of this disclosure provide apparatus, methods, processing systems, and computer-readable media for indicating non-stationary interference conditions.

[0022] Wireless communication networks can combine several base stations, which can provide access to the wireless communication network through cells. Some wireless communication networks can implement a split architecture for base stations. For example, a split architecture may involve some functions of the base station being performed by a first network entity (such as a Radio Unit (RU)) and other functions of the base station being performed by a second network entity (such as a Distributed Unit (DU)). In some examples, the RU may host a radio frequency (RF) subsystem, and the DU may perform higher-level configuration and management of the RU. In some examples, the DU may be associated with multiple RUs. For example, the DU may provide cells via multiple RUs and may manage some operations of multiple RUs.

[0023] The RU can perform certain operations to manage the transmit power at the RU. For example, the RU can perform open-loop automatic gain control (AGC). Open-loop AGC involves the RU performing measurements (such as Received Signal Strength Indicator (RSSI) measurements) and increasing or decreasing the transmit power based on such measurements.

[0024] RUs may experience some degree of interference. Interference can originate from stationary sources (e.g., stationary over a relatively long timescale), such as other RUs. Alternatively, interference can originate from non-stationary sources, such as user equipment (UEs) not associated with an RU (e.g., UEs in neighboring cells, UEs at the cell edge of a cell provided by an RU). Non-stationary interference sources may be referred to herein as jammers. Interference from stationary sources can be mitigated by various means, such as inter-cell interference coordination / cancellation (ICIC) or network planning. For example, stationary sources may be associated with consistent interference characteristics, which can make their interference easier to mitigate than that of jammers. However, jammer interference may begin and end over a relatively short timescale, such as a shorter timescale than that that can be mitigated through network planning. Furthermore, network planning techniques may not be able to address interference from non-stationary sources that may move through the coverage area of ​​an RU or between the coverage areas of different RUs. The presence of interference from jammers may cause RUs performing open-loop AGC to adjust parameters (e.g., transmit power parameters) to avoid saturation, resulting in throughput degradation and sensitivity degradation. Furthermore, the DU may not have access to information about the interference conditions at each RU. Without such information, the DU may find it difficult to configure the RUs to mitigate interference, especially on timescales associated with jammers. This can lead to frequent performance degradation at the RUs, particularly in environments with frequent jammers.

[0025] This disclosure relates generally to split-architecture networks. Some aspects relate more specifically to interference mitigation in split-architecture networks. In some aspects, the RU can send an indication to the DU of a non-stationary interference condition, such as a condition indicating the presence of an interference source. The DU can use this indication to adjust parameters of at least one cell associated with the RU. Thus, the DU can receive information indicating the interference condition at the RU and can take action to mitigate the interference, thereby improving the performance of the RU. In some aspects, the indication of a non-stationary interference condition can indicate that the number of time slots with a threshold interference level within a time window meets a time slot counting threshold. For example, the length of the time window can be configured to indicate that the interference source is non-stationary.

[0026] Various aspects of this disclosure can be used to achieve one or more of the following potential advantages. In some aspects, by providing an indication of the non-stationary interference condition at the RU, the RU (to the DU) provides information indicating the interference condition at the RU. The DU can then take action to mitigate the interference, thereby improving the performance of the RU. In some aspects, by providing an indication that the number of time slots with a threshold interference level within a time window satisfies a time slot counting threshold, the RU provides an indication of the presence of a jammer. In this case, the DU can take action to reconfigure the RU, another RU, or another parameter to mitigate the effects of the jammer, which reduces the likelihood of throughput and sensitivity degradation due to the open-loop AGC at the RU failing to account for the presence of the jammer.

[0027] Various aspects of this disclosure are described more fully below with reference to the accompanying drawings. However, this disclosure may be embodied in many different forms and should not be construed as limited to any particular structure or function presented throughout this disclosure. Rather, these aspects are provided to make this disclosure thorough and complete, and to fully convey the scope of this disclosure to those skilled in the art. Those skilled in the art will appreciate that the scope of this disclosure is intended to cover any aspect of this disclosure disclosed herein, whether implemented independently or in combination with any other aspect of this disclosure. For example, any number of aspects set forth herein may be used to implement an apparatus or method of practice. Furthermore, the scope of this disclosure is intended to cover such apparatuses or methods implemented using structures, functions, or structures and functions other than or different from the aspects of the disclosure set forth herein. It should be understood that any aspect of this disclosure disclosed herein may be embodied by one or more elements of the present claims.

[0028] Various devices and techniques will now be used to illustrate several aspects of a telecommunications system. These devices and techniques will be described in detail below and illustrated in the accompanying drawings by various blocks, modules, components, circuits, steps, processes, or algorithms (collectively, “elements”). These elements can be implemented using hardware, software, or a combination thereof. Whether such elements are implemented as hardware or software depends on the specific application and the design constraints imposed on the system as a whole.

[0029] Although terms generally associated with 5G or New Radio (NR) Radio Access Technology (RAT) may be used herein to describe aspects, aspects of this disclosure may be applied to other RATs, such as 3G RAT, 4G RAT and / or 5G and later (e.g., 6G) RATs.

[0030] Figure 1 An example of a wireless communication network 100 according to this disclosure is depicted.

[0031] Generally, wireless communication network 100 includes various network entities (optionally, network elements or network nodes). Network entities are typically communication devices and / or communication functions performed by communication devices (e.g., UEs, base stations (BSs), components of BSs, servers, etc.). For example, various functions of the network and various devices associated with and interacting with the network can be considered network entities. Furthermore, wireless communication network 100 includes a terrestrial aspect such as terrestrial network entities (e.g., BS 110) and a non-terrestrial aspect such as satellite 140 and aircraft 145. The non-terrestrial aspect may include onboard network entities (e.g., one or more BSs) capable of communicating with other network elements (e.g., terrestrial BSs) and UEs.

[0032] In the depicted example, the wireless communication network 100 includes a BS 110, a UE 120, and one or more core networks (such as an evolved packet core (EPC) 160 and a 5G core (5GC) 190) that interoperate to provide communication services over various communication links, including wired and wireless links.

[0033] Figure 1 Various example UEs 120 are described, which may include cellular phones, smartphones, Session Initiation Protocol (SIP) phones, laptops, personal digital assistants (PDAs), satellite radios, Global Positioning System (GPS) devices, multimedia devices, video devices, digital audio players, cameras, game consoles, tablets, smart devices, wearable devices, vehicles, electricity meters, air pumps, kitchen appliances, healthcare devices, implants, sensors / actuators, displays, Internet of Things (IoT) devices, Always On (AON) devices, edge processing devices, or other similar devices. UE 120 may also be referred to as mobile devices, wireless devices, wireless communication devices, stations, mobile stations, subscriber stations, mobile subscriber stations, mobile units, subscriber units, wireless units, remote units, remote devices, access terminals, mobile terminals, wireless terminals, remote terminals, or mobile phones, etc.

[0034] BS 110 can wirelessly communicate with UE 120 via communication link 170 (e.g., transmit signals to or receive signals from the UE). Communication link 170 between BS 110 and UE 120 can carry uplink (UL) (also known as reverse link) transmission from UE 120 to BS 110 and / or downlink (DL) (also known as forward link) transmission from BS 110 to UE 120. In various aspects, communication link 170 may utilize multiple-input multiple-output (MIMO) antenna technologies, including spatial multiplexing, beamforming, and / or transmit diversity.

[0035] BS 110 may include, for example, NodeBs, enhanced NodeBs (eNBs), next-generation enhanced NodeBs (ng-eNBs), next-generation NodeBs (gNBs or gNodeBs), access points, transceiver base stations, radio base stations, radio transceivers, transceiver functions, transmit / receive points, etc. BS 110 may provide communication coverage for a corresponding geographic coverage area 112, which may sometimes be referred to as a cell, and in some cases may overlap (e.g., a small cell provided by BS 110a may have a coverage area 112' that overlaps with the coverage area 112 of a macro cell). For example, BS 110 may provide communication coverage for macro cells (covering a relatively large geographic area), pico cells (covering a relatively small geographic area, such as a stadium), femtocells (covering a relatively small geographic area (e.g., a home)), and / or other types of cells.

[0036] While the BS 110 is described as a single communication device in various aspects, it can be implemented in a variety of configurations. For example, one or more components of the base station can be decomposed, including a central unit (CU), one or more DUs, one or more RUs, a near-real-time (near-RT) radio access network (RAN) intelligent controller (RIC), or a non-real-time (non-RT) RIC, to name a few. In another example, various aspects of the base station can be virtualized. More generally, a BS (e.g., BS 110) can include components located in a single physical location or components located in various physical locations. In the example where the BS includes components located in various physical locations, each component can perform its own function, such that the various components collectively achieve functionality similar to a BS located in a single physical location. In some aspects, a BS including components located in various physical locations can be referred to as having a decomposed RAN architecture, such as an open RAN (O-RAN) architecture or a virtualized RAN (vRAN) architecture. Figure 3 An example decomposed BS architecture is depicted and described.

[0037] Different BSs 110 within the wireless communication network 100 can also be configured to support different radio access technologies (such as 3G, 4G, and / or 5G, etc.). For example, a BS 110 configured for 4G LTE (collectively referred to as Evolved Universal Mobile Telecommunications System (UMTS) Terrestrial Radio Access Network (E-UTRAN)) can interface with an EPC 160 via a first backhaul link 132 (e.g., an S1 interface). A BS 110 configured for 5G (e.g., 5G NR or Next Generation RAN (NG-RAN)) can interface with a 5GC 190 via a second backhaul link 184. BSs 110 can communicate with each other directly or indirectly (e.g., via EPC 160 or 5GC 190) via a third backhaul link 134 (e.g., an X2 interface), which can be wired or wireless.

[0038] Wireless communication network 100 can subdivide the electromagnetic spectrum into various categories, bands, channels, or other characteristics. In some respects, the subdivision is based on wavelength and frequency, where frequency may also be referred to as carrier, subcarrier, channel, tone, or subband. For example, 3GPP currently defines frequency range 1 (FR1) as including 410MHz-7125MHz, which is often (interchangeably) referred to as “sub-6GHz”. Similarly, the 3rd Generation Partnership Project (3GPP) currently defines frequency range 2 (FR2) as including 24,250MHz-52,600MHz, which is sometimes (interchangeably) referred to as “millimeter wave” (“mmW” or “mmWave”). Base stations configured to communicate using mmWave or near-mmWave radio bands (e.g., mmWave base stations such as BS 110b) can utilize beamforming with UEs (e.g., 120) (e.g., as shown by 182) to improve path loss and range.

[0039] The communication link 170 between BS 110 and, for example, UE 120, can be via one or more carriers, which can have different bandwidths (e.g., 5MHz, 10MHz, 15MHz, 20MHz, 100MHz, 400MHz, and / or other bandwidths) and can be aggregated in various ways. The carriers can be adjacent to each other or not. In some examples, carrier allocation can be asymmetric with respect to DL and UL (e.g., more or fewer carriers can be allocated to DL compared to UL).

[0040] Compared to lower-frequency communication, communication using higher frequency bands may have higher path loss and shorter range. Accordingly, some base stations (e.g., Figure 1Base station 110b can utilize beamforming with UE 120 to improve path loss and range, as shown at 182. For example, BS 110b and UE 120 may each include multiple antennas, such as antenna elements, antenna panels, and / or antenna arrays, to facilitate beamforming. In some cases, BS 110b can transmit beamformed signals to UE 120 in one or more transmit directions 182'. UE 120 can receive beamformed signals from BS 110b in one or more receive directions 182''. UE 120 can also transmit beamformed signals to BS 110b in one or more transmit directions 182''. BS 110b can also receive beamformed signals from UE 120 in one or more receive directions 182''. BS 110b and UE 120 can then perform beamforming training to determine the optimal receive and transmit directions for each of BS 110b and UE 120. It is worth noting that the transmission and reception directions of BS 110b can be the same or different. Similarly, the transmission and reception directions of UE 120 can be the same or different.

[0041] The wireless communication network 100 also includes a Wi-Fi access point 150 that communicates with a Wi-Fi station (STA) 152 via a communication link 154 in, for example, unlicensed spectrum in 2.4 GHz and / or 5 GHz.

[0042] Some UEs 120 may use device-to-device (D2D) communication link 158 to communicate with each other. The D2D communication link 158 may use one or more sidelink channels, such as physical sidelink broadcast channel (PSBCH), physical sidelink discovery channel (PSDCH), physical sidelink shared channel (PSSCH), physical sidelink control channel (PSCCH), and / or physical sidelink feedback channel (PSFCH).

[0043] EPC 160 may include various functional components, including: Mobility Management Entity (MME) 161, other MMEs 162, Serving Gateway 163, Multimedia Broadcast Multicast Service (MBMS) Gateway 164, Broadcast Multicast Service Center (BM-SC) 165, and / or Packet Data Network (PDN) Gateway 166, as in the illustrated example. MME 161 may communicate with Home Subscriber Server (HSS) 167. MME 161 is the control node that handles signaling between UE 120 and EPC 160. Generally, MME 161 provides bearer and connectivity management.

[0044] Generally, user Internet Protocol (IP) packets are transmitted through Serving Gateway 163, which is connected to PDN Gateway 166. PDN Gateway 166 provides UE IP address allocation and other functions. PDN Gateway 166 and BM-SC 165 are connected to IP services 168, which may include, for example, the Internet, intranets, IP Multimedia Subsystem (IMS), packet-switched (PS) streaming services, and / or other IP services.

[0045] The BM-SC 165 provides functionality for MBMS user service dispatch and delivery. The BM-SC 165 can serve as an entry point for content provider MBMS transmissions, can be used to authorize and initiate MBMS bearer services within a Public Land Mobile Network (PLMN), and / or can be used to schedule MBMS transmissions. The MBMS gateway 164 can distribute MBMS services to BS 110 belonging to a Broadcast-Specific Service Single Frequency Network (MBSFN) area, and / or can be responsible for session management (start / stop) and collecting eMBMS-related billing information.

[0046] 5GC 190 may include various functional components, including: Access and Mobility Management Function (AMF) 191, other AMFs 192, Session Management Function (SMF) 193, and User Plane Function (UPF) 194. AMF 191 can communicate with Unified Data Management (UDM) 195.

[0047] AMF 191 is the control node that handles signaling between UE 120 and 5GC 190. AMF 191 provides services such as Quality of Service (QoS) flow and session management.

[0048] IP packets are transmitted via UPF 194, which connects to IP service 196 and provides UE IP address allocation and other functions for 5GC 190. IP service 196 may include, for example, the Internet, intranet, IMS, PS streaming service and / or other IP services.

[0049] In various aspects, to give a few examples, network entities or network nodes can be implemented as aggregated base stations, decomposed base stations, components of base stations, integrated access and backhaul (IAB) nodes, relay nodes, sidelink nodes, transmit and receive points (TRPs), or combinations thereof.

[0050] As indicated above, Figure 1 This is provided as an example. Other examples are available with reference to [the relevant information]. Figure 1 The examples described are different.

[0051] Figure 2 Various aspects of example BS 110 and UE 120 according to this disclosure are depicted.

[0052] Generally, BS 110 includes various processors (e.g., 220, 230, 238, and 240), antennas 234a-234t (collectively referred to as 234), transceivers 232a-232t (collectively referred to as 232) including modulators and demodulators, and other aspects that enable the wireless transmission of data (e.g., data source 212) and the wireless reception of data (e.g., data sink 239). For example, BS 110 can transmit and receive data between BS 110 and UE 120. BS 110 includes a controller / processor 240 that can be configured to implement the various functions described herein related to wireless communication.

[0053] Generally, UE 120 includes various processors (e.g., 258, 264, 266, and 280), antennas 252a-252r (collectively referred to as 252), transceivers 254a-254r (collectively referred to as 254) including modulators and demodulators, and other aspects that enable the wireless transmission of data (e.g., retrieved from data source 262) and the wireless reception of data (e.g., provided to data sink 260). UE 120 includes a controller / processor 280 that can be configured to implement the various functions described herein related to wireless communication.

[0054] For example downlink transmission, BS 110 includes a transmission processor 220 that can receive data from data source 212 and control information from controller / processor 240. This control information may be for the Physical Broadcast Channel (PBCH), Physical Control Format Indicator Channel (PCFICH), Physical Hybrid Automatic Repeat Request (HARQ) Indicator Channel (PHICH), Physical Downlink Control Channel (PDCCH), Group Common PDCCH (GC PDCCH), and / or other channels. In some examples, this data may be for the Physical Downlink Shared Channel (PDSCH).

[0055] Transmitter processor 220 can process (e.g., encode and symbol map) data and control information to obtain data symbols and control symbols, respectively. Transmitter processor 220 can also generate reference symbols such as those for primary synchronization signals (PSS), secondary synchronization signals (SSS), PBCH demodulation reference signals (DMRS), or channel state information reference signals (CSI-RS).

[0056] The transmit (TX) MIMO processor 230 can perform spatial processing (e.g., pre-decoding) on ​​data symbols, control symbols, and / or reference symbols where applicable, and can provide the output symbol stream to the modulators (MODs) in transceivers 232a-232t. Each modulator in transceivers 232a-232t can process its corresponding output symbol stream to obtain an output sample stream. Each modulator can further process (e.g., convert to analog, amplify, filter, and up-convert) the output sample stream to obtain a downlink signal. The downlink signal from the modulators in transceivers 232a-232t can be transmitted via antennas 234a-234t, respectively.

[0057] UE 120 includes antennas 252a-252r that receive downlink signals from BS 110 and provide the received signals to demodulators (DEMODs) in transceivers 254a-254r respectively. Each demodulator in transceivers 254a-254r can modulate (e.g., filter, amplify, down-convert, and digitize) the corresponding received signal to obtain an input sample. Each demodulator can further process the input sample to obtain the received symbols.

[0058] The receive (RX) MIMO detector 256 acquires received symbols from all demodulators in transceivers 254a-254r, performs MIMO detection on the received symbols where applicable, and provides the detected symbols. The receive processor 258 processes (e.g., demodulates, deinterleaves, and decodes) the detected symbols, provides the decoded data for UE 120 to data sink 260, and provides the decoded control information to controller / processor 280.

[0059] For example uplink transmission, UE 120 also includes a transmit processor 264 that receives and processes data from data source 262 (e.g., for the Physical Uplink Shared Channel (PUSCH)) and control information from controller / processor 280 (e.g., for the Physical Uplink Control Channel (PUCCH)). Transmit processor 264 can also generate reference symbols for reference signals (e.g., for Sounding Reference Signals (SRS)). Symbols from transmit processor 264 may be pre-decoded by TX MIMO processor 266, where applicable, further processed by modulators in transceivers 254a-254r (e.g., for SC-FDM), and transmitted to BS 110.

[0060] At BS 110, uplink signals from UE 120 can be received by antennas 234a to 234t, processed by demodulators in transceivers 232a to 232t, detected by MIMO detector 236 where applicable, and further processed by receiver processor 238 to obtain decoded data and control information transmitted by UE 120. Receiver processor 238 can provide the decoded data to data sink 239 and the decoded control information to controller / processor 240. Memory 242 and memory 282 can store data and program code (e.g., processor-executable instructions, computer-executable instructions) for BS 110 and UE 120, respectively. Scheduler 244 can schedule UE to perform data transmission on downlink and / or uplink.

[0061] In various respects, BS 110 can be described as transmitting and receiving various types of data associated with the methods described herein. In these contexts, "transmitting" can refer to various mechanisms that output data, such as from data source 212, scheduler 244, memory 242, transmit processor 220, controller / processor 240, TX MIMO processor 230, transceiver 232a-232t, antenna 234a-234t, and / or other aspects described herein. Similarly, "receiving" can refer to various mechanisms that acquire data, such as from antenna 234a-234t, transceiver 232a-232t, RX MIMO detector 236, controller / processor 240, receive processor 238, scheduler 244, memory 242, network interface, and / or other aspects described herein.

[0062] In various respects, UE 120 can also be described as transmitting and receiving various types of data associated with the methods described herein. In these contexts, “transmitting” can refer to various mechanisms for outputting data, such as from data source 262, memory 282, transmit processor 264, controller / processor 280, TX MIMO processor 266, transceiver 254a-254t, antenna 252a-252t, and / or other aspects described herein. Similarly, “receiving” can refer to various mechanisms for acquiring data, such as from antenna 252a-252t, transceiver 254a-254t, RX MIMO detector 256, controller / processor 280, receive processor 258, memory 282, and / or other aspects described herein.

[0063] In some aspects, processors may be configured to perform various operations (such as those associated with the methods described herein) and to send (output) data to or receive data from another interface configured to send or receive data, respectively. In some aspects, individual processors may perform all the functions described as being performed by the one or more processors. In some aspects, the one or more processors may jointly perform a set of functions. For example, a first set (one or more) of processors may perform a first function described as being performed by the one or more processors, and a second set (one or more) of processors may perform a second function described as being performed by the one or more processors. The processors of the first set and the processors of the second set may be the same set of processors or may be different sets of processors. The reference to “one or more processors” should be understood as referring to a combination of... Figure 2 Any one or more processors described. The reference to "one or more memories" should be understood to refer to any one or more memories of the corresponding device, such as those in conjunction with... Figure 2 The memory described. For example, a function described as being performed by one or more memories can be performed by the same subset of the one or more memories or by different subsets of the one or more memories.

[0064] Although Figure 2 The boxes in the diagram are illustrated as different components, but the functions described above with respect to these boxes may be implemented in a single hardware, software, or combined component, or in various combinations of components. For example, the functions described with respect to transmit processor 264, receive processor 258, and / or TX MIMO processor 266 may be performed by or under the control of controller / processor 280.

[0065] As indicated above, Figure 2 This is provided as an example. Other examples are available with reference to [the relevant information]. Figure 2 The examples described are different.

[0066] Communication systems (such as 5G NR systems) can be deployed in various ways with a variety of components or parts. In a 5G NR system or network, network nodes, network entities, network mobility elements, RAN nodes, core network nodes, network elements, base stations, or network equipment can be implemented in a converged or decomposed architecture. For example, a base station (such as a Node B (NB), evolved NB (eNB), NR BS, 5G NB, access point (AP), TRP, or cell, etc.) or one or more units (or components) that perform base station functions can be implemented as a converged base station (also known as a standalone base station or monolithic base station) or a decomposed base station. A "network entity" or "network node" can refer to a decomposed base station or one or more units of a decomposed base station (such as one or more CUs, one or more DUs, one or more RUs, or combinations thereof).

[0067] Aggregated base stations (e.g., aggregated network nodes) can be configured to utilize a radio protocol stack that is physically or logically integrated within a single RAN node (e.g., within a single device or cell). Decomposed base stations (e.g., decomposed network nodes) can be configured to utilize a protocol stack that is physically or logically distributed across two or more cells (such as one or more CUs, one or more DUs, or one or more RUs). In some examples, the CU may be implemented within a network node, and one or more DUs may be co-located with the CU, or alternatively, may be geographically or virtually distributed across one or more other network nodes. DUs may be implemented to communicate with one or more RUs. Each of the CU, DU, and RU can also be implemented as a virtual cell, such as a Virtual Central Unit (VCU), a Virtual Distributed Unit (VDU), or a Virtual Radio Unit (VRU), etc.

[0068] Base station type operation or network design can take into account the aggregation characteristics of base station functionality. For example, decomposed base stations can be utilized in IAB networks, O-RAN (such as network configurations initiated by the O-RAN Consortium), or vRAN (also known as cloud RAN (C-RAN)) to facilitate the scaling of communication systems by separating base station functionality into one or more units that can be deployed individually. Decomposed base stations may include functionality implemented by two or more units across various physical locations, as well as functionality virtually implemented for at least one unit, which enables flexibility in network design. Each unit of a decomposed base station can be configured for wired or wireless communication with at least one other unit of the decomposed base station.

[0069] Figure 3An example disaggregated base station 300 architecture according to this disclosure is depicted. The disaggregated base station 300 architecture may include one or more CUs 310, which may communicate directly with the core network 320 via a backhaul link, or indirectly with the core network 320 through one or more disaggregated base station units (such as near-RT RICs 325 via E2 links, or non-RT RICs 315 associated with a Service Management and Orchestration (SMO) framework 305, or both). CUs 310 may communicate with one or more DUs 330 via corresponding midhaul links (such as F1 interfaces). DUs 330 may communicate with one or more RUs 340 via corresponding fronthaul links. RUs 340 may communicate with corresponding UEs 120 via one or more RF access links. In some specific implementations, a UE 120 may be served simultaneously by multiple RUs 340.

[0070] Each of the units (e.g., CU 310, DU 330, RU 340, and near-RT RIC 325, non-RT RIC 315, and SMO frame 305) may include or be coupled to one or more interfaces configured to receive or transmit signals, data, or information (collectively, signals) via wired or wireless transmission media. Each unit in the unit, or an associated processor or controller providing instructions to the unit's communication interface, may be configured to communicate with one or more other units via transmission media. For example, these units may include wired interfaces configured to receive signals or transmit signals to one or more other units via wired transmission media. Additionally or alternatively, these units may include wireless interfaces, which may include receivers, transmitters, or transceivers (such as RF transceivers), configured to receive signals or transmit signals to one or more other units via wireless transmission media, or both.

[0071] In some aspects, the CU 310 can host one or more higher-level control functions. Such control functions may include Radio Resource Control (RRC), Packet Data Convergence Protocol (PDCP), Serving Data Adaptation Protocol (SDAP), etc. Each control function can be implemented using an interface configured to signal to other control functions hosted by the CU 310. The CU 310 can be configured to handle user plane functions (e.g., Central Unit-User Plane (CU-UP)), control plane functions (e.g., Central Unit-Control Plane (CU-CP)), or combinations thereof. In some implementations, the CU 310 can be logically divided into one or more CU-UP units and one or more CU-CP units. When implemented in an O-RAN configuration, the CU-UP units can communicate bidirectionally with the CU-CP units via an interface such as an E1 interface. The CU 310 can be implemented to communicate with the DU 330 for network control and signaling, as needed.

[0072] DU 330 may correspond to a logical unit including one or more base station functions for controlling the operation of one or more RU 340s. DU 330 controlling the operation of RU 340 may be referred to as associated with RU 340, and RU 340 may be referred to as associated with DU 330. In some aspects, DU 330 may, at least in part, host one or more of the Radio Link Control (RLC) layer, Medium Access Control (MAC) layer, and one or more high physical (PHY) layers (such as modules for forward error correction (FEC) encoding and decoding, scrambling, modulation and demodulation, etc.) depending on functional splits (such as those defined by 3GPP). In some aspects, DU 330 may further host one or more low PHY layers. Each layer (or module) may be implemented using an interface configured to communicate signals with other layers (and modules) hosted by DU 330 or with control functions hosted by CU 310.

[0073] Lower-layer functionality can be implemented by one or more RU 340s. In some deployments, an RU340 controlled by a DU 330 may correspond to a logical node that hosts RF processing functions or low-PHY layer functions (such as performing Fast Fourier Transform (FFT), Inverse FFT (iFFT), digital beamforming, Physical Random Access Channel (PRACH) extraction and filtering, open-loop AGC, etc.) or both, at least in part based on functional decomposition (such as lower-layer functional decomposition). In such architectures, the RU 340 may be implemented to handle over-the-air (OTA) communications with one or more UE 120s. In some specific implementations, the real-time and non-real-time aspects of control plane and user plane communications with the RU 340 may be controlled by the corresponding DU 330. In some scenarios, this configuration allows the DU 330 and CU 310 to be implemented in cloud-based RAN architectures such as vRAN architectures.

[0074] The SMO framework 305 can be configured to support RAN deployment and provisioning of both non-virtualized and virtualized network elements. For non-virtualized network elements, the SMO framework 305 can be configured to support the deployment of dedicated physical resources for RAN coverage requirements, which can be managed via operation and maintenance interfaces such as the O1 interface. For virtualized network elements, the SMO framework 305 can be configured to interact with a cloud computing platform such as the Open Cloud (O-Cloud) 385 to perform network element lifecycle management (such as instantiating virtualized network elements) via a cloud computing platform interface such as the O2 interface. Such virtualized network elements may include, but are not limited to, CU 310, DU 330, RU 340, and near-RT RIC 325. In some implementations, the SMO framework 305 can communicate with hardware aspects of the 4G RAN, such as the Open eNB (O-eNB) 311, via the O1 interface. Additionally, in some implementations, the SMO framework 305 can communicate directly with one or more RUs 340 via the O1 interface. SMO framework 305 may also include a non-RT RIC 315 configured to support the functionality of SMO framework 305.

[0075] The non-RT RIC 315 can be configured to include logical functions enabling non-real-time control and optimization of RAN elements and resources, including artificial intelligence / machine learning (AI / ML) workflows for model training and updates, or policy-based guidance for applications / features in the near-RT RIC 325. The non-RT RIC 315 can be coupled to or communicate with the near-RT RIC 325, such as via an A1 interface. The near-RT RIC 325 can be configured to include logical functions enabling near real-time control and optimization of RAN elements and resources via data collection and actions through an interface such as an E2 interface, connecting one or more CU 310s, one or more DU 330s, or both, and O-eNBs to the near-RT RIC 325.

[0076] In some implementations, to generate AI / ML models to be deployed in the near-RT RIC 325, the non-RT RIC 315 may receive parameters or external enrichment information from an external server. This information can be utilized by the near-RT RIC 325 and may be received from non-network data sources or network functions at the SMO framework 305 or the non-RT RIC 315. In some examples, the non-RT RIC 315 or near-RT RIC 325 may be configured to tune RAN behavior or performance. For example, the non-RT RIC 315 may monitor long-term trends and patterns in performance and employ AI / ML models to perform corrective actions via the SMO framework 305 (such as reconfiguration via O1) or by creating RAN management policies (such as A1 policies).

[0077] Figure 3 This includes jammer 390. Jammer 390 can include any interference source, but in some examples it can include UE120. Jammer 390 may cause interference at RU 340 (such as RU 340a and 340b), which provide coverage areas in the vicinity of jammer 390. Jammer 390 may be referred to as a non-stationary interference source. The techniques described herein provide an identification of non-stationary interference conditions that can indicate the presence, influence, or interference of jammer 390.

[0078] As indicated above, Figure 3 This is provided as an example. Other examples are available with reference to [the relevant information]. Figure 3 The examples described are different.

[0079] Figure 4A , Figure 4B , Figure 4C and Figure 4D The present disclosure describes a method for use in wireless communication networks (such as...) Figure 1 All aspects of the data structure of the wireless communication network 100. Figure 4AFigure 400 is an example of the first subframe within a 5G (e.g., 5G NR) frame structure. Figure 4B Figure 430 illustrates an example of a DL channel within a 5G subframe. Figure 4C Figure 450 illustrates an example of the second subframe within a 5G frame structure, and Figure 4D Figure 480 illustrates an example of a UL channel within a 5G subframe.

[0080] Wireless communication systems can utilize Orthogonal Frequency Division Multiplexing (OFDM) with a cyclic prefix (CP) on both the uplink and downlink. Such systems can also support half-duplex operation using time-division duplex. OFDM and single-carrier frequency division multiplexing (SC-FDM) will (e.g., as...) Figure 4B and Figure 4D The system bandwidth (as depicted in the text) is divided into multiple orthogonal subcarriers. Each subcarrier can be modulated with data. Modulation symbols can be transmitted in the frequency domain using OFDM and / or in the time domain using SC-FDM.

[0081] Wireless communication frame structures can be frequency division duplex (FDD), where for a specific set of subcarriers, subframes within that set are dedicated to either deep (DL) or ultra-low (UL). Wireless communication frame structures can also be time division duplex (TDD), where for a specific set of subcarriers, subframes within that set are dedicated to both DL and UL.

[0082] exist Figure 4A and Figure 4C In this example, the wireless communication frame structure is TDD, where D stands for DL, U for UL, and F is flexibly used between DL and UL. The UE can utilize the slot format for configuration via the received Slot Format Indicator (SFI) (dynamically configured via DL Control Information (DCI) or semi-statically / statically configured via RRC signaling). In the depicted example, a 10ms frame is divided into 10 equal-sized 1ms subframes. Each subframe may include one or more slots. In some examples, each slot may include 7 or 14 symbols, depending on the slot format. Subframes may also include micro-slots, which typically have fewer symbols than the entire slot. Other wireless communication technologies may have different frame structures and / or different channels.

[0083] In some respects, the number of time slots within a subframe is based on the time slot configuration and parameter set. For example, for time slot configuration 0, different parameter sets (μ) 0 to 5 allow for 1, 2, 4, 8, 16, and 32 time slots per subframe, respectively. For time slot configuration 1, different parameter sets 0 to 2 allow for 2, 4, and 8 time slots per subframe, respectively. Accordingly, for time slot configuration 0 and parameter set μ, there are 14 symbols per time slot and 2 per subframe. µEach time slot. Subcarrier spacing and symbol length / duration are functions of the parameter set. Subcarrier spacing can be equal to 2. μ ×15kHz, where μ is the parameter set index, which can be selected from values ​​0 to 5. Therefore, the subcarrier spacing is 15kHz for parameter set µ=0 and 480kHz for parameter set µ=5. Other parameter sets and subcarrier spacings can be used. Symbol length / duration is negatively correlated with subcarrier spacing. Figure 4A , Figure 4B , Figure 4C and Figure 4D Examples are provided for slot configuration 0 with 14 symbols per slot and parameter set µ=2 with 4 slots per subframe. The slot duration is 0.25 ms, the subcarrier spacing is 60 kHz, and the symbol duration is approximately 16.67 μs.

[0084] like Figure 4A , Figure 4B , Figure 4C and Figure 4D As depicted, the resource grid can be used to represent the frame structure. Each time slot includes a resource block (RB) (also known as a physical RB (PRB)) extending for, for example, 12 consecutive subcarriers. The resource grid is divided into multiple resource elements (REs). The number of bits carried by each RE depends on the modulation scheme.

[0085] like Figure 4A As illustrated, some REs carry reference (pilot) signals (RS) for the UE (e.g., UE 120). The RS may include DMRS and / or CSI-RS for channel estimation at the UE. The RS may also include beam measurement RS (BRS), beam refinement RS (BRRS), and / or phase tracking RS (PT-RS).

[0086] Figure 4B Examples of various DL channels within a subframe of a frame are illustrated. The PDCCH carries the DCI within one or more Control Channel Elements (CCEs), each CCE comprising, for example, nine RE groups (REGs), each REG comprising, for example, four consecutive REs in an OFDM symbol.

[0087] The PSS can be located within symbol 2 of a specific subframe of the frame. The PSS is used by the UE (e.g., UE 120) to determine subframe / symbol timing and physical layer identification.

[0088] The SSS can be located within symbol 4 of a specific subframe of the frame. The SSS is used by the UE to determine the physical layer cell identifier group number and radio frame timing.

[0089] Based on the Physical Layer Identifier and Physical Layer Cell Identifier Group Number, the UE can determine the Physical Cell Identifier (PCI). Based on the PCI, the UE can determine the location of the aforementioned DMRS. The PBCH carrying the Master Information Block (MIB) can be logically grouped with the PSS and SSS to form a Synchronization Signal (SS) / PBCH block (also known as an SS block (SSB)). The MIB provides the System Frame Number (SFN) and the number of RBs in the system bandwidth. The PDSCH carries user data, broadcast system information not transmitted via the PBCH (such as System Information Block (SIB)), and / or paging messages.

[0090] like Figure 4C As illustrated, some REs in the REs carry DMRS for channel estimation at the base station (indicated as R for a particular configuration, but other DMRS configurations are possible). The UE can transmit DMRS for PUCCH and DMRS for PUSCH. PUSCH DMRS can be transmitted, for example, in the first or second symbol before the PUSCH. PUCCH DMRS can be transmitted in different configurations depending on whether a short or long PUCCH is being transmitted and depending on the specific PUCCH format used. UE 120 can transmit SRS. SRS can be transmitted, for example, in the last symbol of a subframe. SRS can have a comb structure, and the UE can transmit SRS on one of these comb teeth. SRS can be used by the base station for channel quality estimation to enable frequency-dependent scheduling of the UL.

[0091] Figure 4D Examples of various UL channels within a subframe of a frame are illustrated. The PUCCH can be located as indicated in one configuration. The PUCCH carries uplink control information (UCI), such as scheduling requests, channel quality indicators (CQI), pre-decoding matrix indicators (PMI), rank indicators (RI), and HARQ ACK / NACK feedback. The PUSCH carries data and may additionally be used to carry buffer status reports (BSR), power clearance reports (PHR), and / or UCI.

[0092] As indicated above, Figure 4 is provided as an example. Other examples may differ from those described with respect to Figure 4.

[0093] Figure 5This is a diagram illustrating example 500 of signaling associated with the operation of an interference-aware base station in a distributed topology according to this disclosure. Example 500 includes DU 510 (e.g., BS 110, DU 330) and RU 520 (e.g., BS 110, RU 340). In some aspects, DU 510 may be referred to as a network entity. In some aspects, RU 520 may be referred to as a network entity. DU 510 may be associated with RU 520. For example, DU 510 may control the operation of RU 520. As another example, DU 510 may have a signaling interface with RU 520.

[0094] As indicated by reference numeral 530 in the attached figure, RU 520 can identify non-stationary interference conditions. In some aspects, non-stationary interference conditions can be based at least in part on interference levels in several time slots. For example, a non-stationary interference condition can indicate that the number of time slots is associated with a threshold interference level, that the number of time slots occurs within a time window, and / or that the number of time slots meets a time slot counting threshold. As another example, a non-stationary interference condition can indicate that the number of time slots meets one or more metrics indicating the presence of a jammer, which can be based on or derived from one or more of the following: measurement comparisons at different points on the data path, RSSI / SINR / RSRP statistics over time, threshold performance degradation, periodic measurements, bandwidth estimation, etc. For example, a non-stationary interference condition (indicating the presence of a jammer) can be met when RU 520 identifies an interference indicator. In some aspects, a time slot associated with a threshold interference level can indicate that the time slot is associated at least with an interference level indicating the presence of a jammer (e.g., jammer 390) in the coverage area of ​​RU 520 or otherwise associated with that coverage area. If the threshold interference level is not met, or if one or more metrics do not indicate the presence of a jammer, the RU 520 may not be associated with an interference level that indicates the presence of a jammer. The interference level can be measured using any suitable value, such as the Reference Signal Received Power (RSRP) value, RSSI value, Signal-to-Interference and Noise Ratio (SINR) value, etc.

[0095] If the number of time slots occurs within a time window, this can indicate that a jammer is within a threshold distance or has moved through the coverage area of ​​RU 520, subjecting RU 520 to interference from the jammer. For example, the length of the time window can be configured to indicate that the interference source (e.g., a jammer) associated with a non-stationary interference condition is non-stationary. If a time slot counting threshold is met, this can indicate that RU 520 has detected a jammer in a sufficient number of time slots, allowing corrective actions (e.g., adjustments to parameters associated with the RU, as described below) to improve the performance of RU 520. In some aspects, the time window can be defined as a certain number of time slots, such as the most recent XA time window can be defined as a specific group of time slots, such as a time window that begins in the first time slot and ends in the second time slot.

[0096] The slot counting threshold can indicate the number of slots associated with at least a threshold interference level, or the number of slots whose presence is indicated by one or more metrics. In some aspects, if the slot counting threshold is not met, the RU 520 may not identify a non-stationary interference condition and / or may not send an indication of a non-stationary interference condition. In some aspects, if the number of slots with a threshold interference level or whose presence is indicated by one or more metrics meets the slot counting threshold, but the number of slots does not occur within the length of the time window, the RU 520 may not identify a non-stationary interference condition and / or may not send an indication of a non-stationary interference condition.

[0097] In some aspects, the DU 510 (or the CU associated with the DU 510) can transmit a configuration, and the RU 520 can receive that configuration. This configuration can indicate one or more parameters associated with a non-stationary interference condition. For example, one or more parameters can indicate one or more of a slot counting threshold, an interference threshold, one or more metrics, the length of a time window, and / or one or more reporting parameters (e.g., the time for sending a report). In some aspects, the configuration can indicate resources on which interference for a non-stationary interference condition is to be measured. For example, this resource may include a zero-power channel state information reference signal resource.

[0098] As indicated by reference numeral 540 in the accompanying drawings, RU 520 can transmit an indication of a non-stationary interference condition, and DU 510 can receive such an indication. In some aspects, the indication of a non-stationary interference condition can indicate that a slot count threshold is met within a time window. In some aspects, the indication of a non-stationary interference condition can identify the number of slots and / or the slot count threshold. Additionally or alternatively, the indication of a non-stationary interference condition can identify a time window, such as the start time, end time, and / or length of the time window. Additionally or alternatively, the indication of a non-stationary interference condition can identify a threshold interference level, a measured interference level, one or more metrics, and / or one or more values ​​associated with one or more metrics. In some aspects, RU 520 can transmit the indication of a non-stationary interference condition according to a configuration (such as on a resource indicated by the configuration).

[0099] As indicated by reference numeral 550 in the accompanying drawings, DU 510 can use an instruction to adjust parameters associated with RU 520. For example, DU 510 can adjust parameters of at least one cell associated with RU 520 (e.g., a cell provided by RU 520, a cell provided by DU 510, a cell adjacent to the cell provided by RU 520, etc.). DU 510 can use the instruction to adjust parameters because DU 510 can adjust the parameters such that interference from interference sources from non-stationary interference conditions associated with the instruction is mitigated. In some aspects, DU 510 can reconfigure RU 520, such as by providing RU 520 with adjustments to the parameters. In some aspects, DU 510 can signal updated parameter values ​​to RU 520.

[0100] In some respects, DU 510 can adjust radio resource management (RRM) parameters. RRM parameters may include, for example, transmit power, resource allocation parameters, data rates, handover criteria or thresholds, error decoding schemes, resource allocation parameters, or combinations thereof. For example, DU 510 can change the frequency resource allocation of the jammer or RU 520 or the interfered UE, which can reduce sensitivity degradation. As another example, DU 510 can configure (e.g., synchronize) the time resource allocation of the jammer or RU 520, which can reduce interference. As another example, DU 510 can reduce or request a reduction in the transmit power of the jammer. As another example, DU 510 can transfer the jammer or the interfered UE to another RU, which can reduce interference. Additionally or alternatively, DU 510 can adjust the modulation and decoding scheme (MCS) associated with RU 520. For example, DU 510 can adjust the MCS and / or RRM parameters to reduce throughput and / or coverage degradation at RU 520 in the presence of the jammer. In some respects, the DU 510 can reduce the MCS, allowing communications transmitted or received by the RU 520 to use a more conservative modulation scheme and / or code rate. In other respects, the DU 510 can reconfigure handover criteria or thresholds, allowing a UE (e.g., the interfered UE, the jammer) to be transferred to another RU 520, as mentioned above.

[0101] In some aspects, parameters may include ICIC parameters. For example, DU 510 may coordinate with a second DU to mitigate interference from sources of interference in non-stationary interference conditions. Adjusting ICIC parameters may include configuring a UE associated with DU 510 and / or RU 520 to use different resources (e.g., frequency resources, spatial resources, and / or temporal resources) than a UE associated with another DU and / or another RU associated with that other DU (e.g., an jammer). Additionally or alternatively, adjusting ICIC parameters may include configuring an RU associated with an jammer to use different resources than RU 520. By configuring the UE or RU to communicate using different resources, interference between RU 520 and another UE or RU is reduced.

[0102] As indicated above, Figure 5 This is provided as an example. Other examples are available with reference to [the relevant information]. Figure 5 The examples described are different.

[0103] Figure 6 This is a flowchart of an example method 600 for wireless communication. Method 600 can be performed at a device such as a DU (e.g., BS 110, DU330, DU 510) or a DU.

[0104] Method 600 begins at 610, receiving an indication of a non-stationary interference condition from an RU (e.g., BS 110, RU 340, RU 520) associated with the DU. For example, the DU can receive an indication of a non-stationary interference condition from an RU associated with the DU, as described above in conjunction with, for example... Figure 5 And as described at 540.

[0105] Then, method 600 continues at 620, using instructions to adjust parameters of at least one cell associated with the RU. For example, the DU can use instructions to adjust parameters of at least one cell associated with the RU, as described above in conjunction with, for example... Figure 5 And as described at 550.

[0106] In some respects, adjusting parameters includes using instructions to adjust the radio resource management parameters of at least one cell.

[0107] In some respects, adjusting parameters includes using instructions to perform inter-cell interference coordination with the second DU.

[0108] In some respects, adjusting parameters includes adjusting scheduling parameters associated with the RU.

[0109] In some respects, adjusting parameters includes adjusting the modulation and decoding schemes associated with the RU.

[0110] In some respects, the number of time slots associated with the threshold interference level within the indication time window for non-stationary interference conditions meets the time slot counting threshold.

[0111] In some respects, the number of time slots is indicated for non-stationary interference conditions.

[0112] In some respects, the indication time window for non-stationary interference conditions.

[0113] In some respects, the threshold level for indicating non-stationary interference conditions is used to indicate the interference level.

[0114] In some respects, the length of the time window is configured to indicate that the interference source associated with the non-stationary interference condition is non-stationary.

[0115] In one aspect, method 600 or any aspect thereof may be made by means of a device (such as...) Figure 8 The communication device 800 performs the method, which includes various components capable of operating, configured, or adapted to perform the method 600. The communication device 800 is described in more detail below.

[0116] although Figure 6 An example box of method 600 is shown, but in some respects, method 600 may include... Figure 6 The boxes depicted in the diagram may be fewer, different, or arranged differently than additional boxes. Alternatively, two or more boxes in the diagram of method 600 may be executed in parallel.

[0117] Figure 7 This is a flowchart of an example method 700 for wireless communication. Method 700 can be performed at a device such as an RU (e.g., BS 110, RU340, RU 520) or an RU.

[0118] Method 700 begins at 710 by sending an indication of a non-stationary interference condition at the RU to the DU associated with the RU. For example, the RU may send an indication of a non-stationary interference condition at the RU to the DU associated with the RU, as described above in conjunction with, for example... Figure 5 And as described at 540.

[0119] Then, method 700 continues at 720, receiving adjustments to parameters of at least one cell associated with the RU using an indication. For example, the RU may receive adjustments to parameters of at least one cell associated with the RU using an indication, as described above in conjunction with, for example... Figure 5 And as described at 550.

[0120] In some respects, the number of time slots associated with the threshold interference level within the indication time window for non-stationary interference conditions meets the time slot counting threshold.

[0121] In some respects, the number of time slots is indicated for non-stationary interference conditions.

[0122] In some respects, the indication time window for non-stationary interference conditions.

[0123] In some respects, the threshold level for indicating non-stationary interference conditions is used to indicate the interference level.

[0124] In some respects, the length of the time window is configured to indicate that the interference source associated with the non-stationary interference condition is non-stationary.

[0125] In one aspect, method 700 or any aspect thereof may be made by means of a device (such as...) Figure 9 The communication device 900 performs the operation, and the device includes various components capable of operating, configured, or adapted to perform the method 700. The communication device 900 is described in more detail below.

[0126] although Figure 7 An example box of method 700 is shown, but in some respects, method 700 may include... Figure 7 The boxes depicted in the diagram may be fewer, different, or arranged differently than additional boxes. Alternatively, two or more boxes in the diagram of method 700 may be executed in parallel.

[0127] Figure 8 This is a diagram illustrating an example of a specific implementation of code and circuitry for a communication device 800 according to this disclosure. The communication device 800 may be a DU (such as BS 110, DU 330, or DU 510), or a DU may include the communication device 800.

[0128] The communication device 800 includes a processing system 802 coupled to a transceiver 808 (e.g., a transmitter and / or receiver, and which may include a single transceiver or multiple transceivers capable of performing various operations described herein). The transceiver 808 is configured to transmit and receive signals for the communication device 800 via an antenna 810 (e.g., one or more antennas), such as various signals as described herein. A network interface 812 is configured to transmit signals via a communication link (such as those described herein). Figure 3 The described backhaul link, midhaul link, and / or fronthaul link receive and transmit signals for the communication device 800. The processing system 802 can be configured to perform the processing functions of the communication device 800, including processing signals received by the communication device 800 and / or to be transmitted by the communication device.

[0129] Processing system 802 includes one or more processors 820. In various aspects, the one or more processors 820 may include one or more of a receive processor 238, a transmit processor 220, a TX MIMO processor 230, and / or a controller / processor 240, as per [reference to...]. Figure 2 As described. One or more processors 820 are coupled to a computer-readable medium / memory 830 via a bus 806. In various aspects, the computer-readable medium / memory 830 may include one or more memories, such as memory 242, as described above. Figure 2 As described. In some aspects, the computer-readable medium / memory 830 is configured to store instructions (e.g., computer-executable code, processor-executable instructions) that, when executed by one or more processors 820, cause one or more processors 820 to perform actions regarding Figure 6 The method 600 described herein or any aspect thereof. It should be noted that references to a processor performing a function of the communication device 800 may include one or more processors performing that function of the communication device 800. It should also be noted that references to one or more processors performing multiple functions may include a first processor performing a first function of the multiple functions and a second processor performing a second function of the multiple functions.

[0130] like Figure 8 As shown, the communication device 800 may include circuitry (circuit 835) for receiving an indication of a non-stationary interference condition from an RU associated with the DU.

[0131] like Figure 8 As shown, the communication device 800 may include code (code 840) stored in a computer-readable medium / memory 830 for receiving an indication of a non-stationary interference condition from an RU associated with the DU.

[0132] like Figure 8 As shown, the communication device 800 may include circuitry (circuit 845) for adjusting parameters of at least one cell associated with the RU using an instruction.

[0133] like Figure 8 As shown, the communication device 800 may include code (code 850) stored in a computer-readable medium / memory 830 for adjusting parameters of at least one cell associated with the RU using instructions.

[0134] The various components of the communication device 800 can provide for performing tasks related to... Figure 6 The described method 600 or any components related thereto. For example, components for transmitting, conveying, or outputting for transmission may include the transceiver 232 and / or antenna 234 of BS 110, and / or Figure 8The communication device 800 includes a transceiver 808 and / or an antenna 810. Components for receiving or acquiring data may include the transceiver 232 and / or antenna 234 of BS 110, and / or... Figure 8 The transceiver 808 and antenna 810 of the communication device 800.

[0135] Figure 8 This is provided as an example. Other examples can be combined with it. Figure 8 The examples described are different.

[0136] Figure 9 This is a diagram illustrating an example of a specific implementation of code and circuitry for a communication device 900 according to this disclosure. The communication device 900 may be an RU (such as BS 110, RU 340, or RU 520), or an RU may include the communication device 900.

[0137] Communication device 900 includes a processing system 902 coupled to transceiver 908 (e.g., a transmitter and / or receiver, and which may include a single transceiver or multiple transceivers capable of performing various operations described herein). Transceiver 908 is configured to transmit and receive signals for communication device 900 via antenna 910 (e.g., one or more antennas), such as various signals as described herein. Network interface 912 is configured to transmit signals via communication links (such as those described herein, such as those related to...). Figure 3 The described backhaul link, midhaul link, and / or fronthaul link receive and transmit signals for the communication device 900. The processing system 902 can be configured to perform the processing functions of the communication device 900, including processing signals received by the communication device 900 and / or to be transmitted by the communication device.

[0138] Processing system 902 includes one or more processors 920. In various aspects, the one or more processors 920 may include one or more of a receive processor 238, a transmit processor 220, a TX MIMO processor 230, and / or a controller / processor 240, as per [reference to...]. Figure 2 As described. One or more processors 920 are coupled to computer-readable medium / memory 930 via bus 906. In various aspects, computer-readable medium / memory 930 may include one or more memories, such as memory 242, as described above. Figure 2 As described. In some aspects, the computer-readable medium / memory 930 is configured to store instructions (e.g., computer-executable code, processor-executable code) that, when executed by one or more processors 920, cause one or more processors 920 to perform actions regarding Figure 7The method 700 described herein or any aspect thereof. It should be noted that references to a processor performing the functions of the communication device 900 may include one or more processors performing that function of the communication device 900. It should also be noted that references to one or more processors performing multiple functions may include a first processor performing a first function of the multiple functions and a second processor performing a second function of the multiple functions.

[0139] like Figure 9 As shown, the communication device 900 may include circuitry (circuit 935) for sending an indication of non-stationary interference conditions at the RU to the DU associated with the RU.

[0140] like Figure 9 As shown, the communication device 900 may include code (code 940) stored in a computer-readable medium / memory 930 for sending an indication of non-stationary interference conditions at the RU to a DU associated with the RU.

[0141] like Figure 9 As shown, the communication device 900 may include circuitry (circuit 945) for receiving adjustments to parameters of at least one cell associated with the RU.

[0142] like Figure 9 As shown, the communication device 900 may include code (code 950) stored in a computer-readable medium / memory 930 for receiving and using an instruction to adjust parameters of at least one cell associated with the RU.

[0143] The various components of the communication device 900 can provide for performing tasks related to... Figure 7 The described method 700 or any components related thereto. For example, components for transmitting, conveying, or outputting for transmission may include the transceiver 232 and / or antenna 234 of BS 110, and / or Figure 9 The transceiver 908 and / or antenna 910 of the communication device 900 in the BS 110. Components for receiving or acquiring may include the transceiver 232 and / or antenna 234 of the BS 110, and / or Figure 9 The transceiver 908 and antenna 910 of the communication device 900.

[0144] Figure 9 This is provided as an example. Other examples can be combined with it. Figure 9 The examples described are different.

[0145] The following provides an overview of some aspects of this disclosure: Aspect 1: A method of wireless communication performed by a distributed unit (DU), the method comprising: receiving an indication of a non-stationary interference condition from a radio unit (RU) associated with the DU; and using the indication to adjust parameters of at least one cell associated with the RU.

[0146] Aspect 2: According to the method of aspect 1, adjusting the parameters includes using the indication to adjust the radio resource management parameters of the at least one cell.

[0147] Aspect 3: The method according to any one of Aspects 1 to 2, wherein adjusting the parameters includes using the indication to perform inter-cell interference coordination with the second DU.

[0148] Aspect 4: The method according to any one of Aspects 1 to 3, wherein adjusting the parameters includes adjusting the scheduling parameters associated with the RU.

[0149] Aspect 5: The method according to any one of Aspects 1 to 4, wherein adjusting the parameters includes adjusting the modulation and decoding scheme associated with the RU.

[0150] Aspect 6: The method according to any one of Aspects 1 to 5, wherein the number of time slots associated with the threshold interference level in the indication time window for the non-stationary interference condition satisfies the time slot counting threshold.

[0151] Aspect 7: The method according to aspect 6, wherein the indication of the non-stationary interference condition indicates the number of time slots.

[0152] Aspect 8: According to the method of aspect 6, wherein the indication for the non-stationary interference condition indicates the time window.

[0153] Aspect 9: According to the method of aspect 6, wherein the indication of the non-stationary interference condition indicates the threshold interference level.

[0154] Aspect 10: According to the method of aspect 6, the length of the time window is configured to indicate that the interference source associated with the non-stationary interference condition is non-stationary.

[0155] Aspect 11: A method of wireless communication performed by a radio unit (RU), the method comprising: transmitting an indication of a non-stationary interference condition at the RU to a distributed unit (DU) associated with the RU; and receiving an adjustment of parameters of at least one cell associated with the RU using the indication.

[0156] Aspect 12: According to the method of aspect 11, wherein the number of time slots associated with the threshold interference level in the indication time window for the non-stationary interference condition satisfies the time slot counting threshold.

[0157] Aspect 13: The method according to aspect 12, wherein the indication of the non-stationary interference condition indicates the number of time slots.

[0158] Aspect 14: The method according to aspect 12, wherein the indication for the non-stationary interference condition indicates the time window.

[0159] Aspect 15: The method according to aspect 12, wherein the indication of the non-stationary interference condition indicates the threshold interference level.

[0160] Aspect 16: According to the method of aspect 12, the length of the time window is configured to indicate that the interference source associated with the non-stationary interference condition is non-stationary.

[0161] Aspect 17: The method according to aspect 2, wherein the radio resource management parameters include at least one of time resource allocation, frequency resource allocation, transmit power adjustment, or handover criteria.

[0162] Aspect 18: The method according to aspect 1, wherein the non-stationary interference condition is based at least in part on one or more metrics indicating the presence of an interference device.

[0163] Aspect 19: An apparatus for wireless communication at a device, the apparatus comprising: one or more processors; one or more memories coupled to the one or more processors; and instructions stored in the one or more memories and executable by the one or more processors to cause the apparatus to perform the method according to one or more of aspects 1 to 18.

[0164] Aspect 20: An apparatus for wireless communication at a device, the apparatus comprising: one or more memories; and one or more processors coupled to the one or more memories, the one or more processors being configured to cause the device to perform the method according to one or more of aspects 1 to 18.

[0165] Aspect 21: An apparatus for wireless communication, the apparatus comprising at least one component for performing the method according to one or more of aspects 1 to 18.

[0166] Aspect 22: A non-transitory computer-readable medium storing code for wireless communication, the code including instructions executable by one or more processors to perform the method according to one or more of aspects 1 to 18.

[0167] Aspect 23: A non-transitory computer-readable medium storing a set of instructions for wireless communication, the set of instructions comprising one or more instructions that, when executed by one or more processors of a device, cause the device to perform the method according to one or more of aspects 1 to 18.

[0168] Aspect 24: A device for wireless communication, the device including a processing system comprising one or more processors and one or more memories coupled to the one or more processors, the processing system being configured to cause the device to perform the method according to one or more of aspects 1 to 18.

[0169] Aspect 25: An apparatus for wireless communication at a device, the apparatus comprising: one or more memories; and one or more processors coupled to the one or more memories, the one or more processors being individually or collectively configured to cause the device to perform the method according to one or more of aspects 1 to 18.

[0170] While the foregoing disclosure provides examples and descriptions, it is not intended to be exhaustive or to limit the aspects to the precise form disclosed. Modifications and variations may be made based on the foregoing disclosure, or from various forms of practice.

[0171] As used herein, the term "component" is intended to be interpreted broadly as hardware and / or a combination of hardware and software. Whether referred to as software, firmware, middleware, microcode, hardware description language, or other names, "software" should be interpreted broadly as meaning instructions, instruction sets, code, code segments, program code, programs, subroutines, software modules, applications, software applications, software packages, routines, subroutines, objects, executable files, threads of execution, procedures, and / or functions, etc. As used herein, a "processor" is implemented in hardware and / or a combination of hardware and software. It will be apparent to those skilled in the art that the systems and / or methods described herein can be implemented in various forms of hardware and / or combinations of hardware and software. The actual dedicated control hardware or software code used to implement these systems and / or methods is not limiting in any way. Therefore, no specific software code is referenced herein to describe the operation and behavior of the systems and / or methods, as those skilled in the art will understand that the software and hardware can be designed, at least in part, based on the descriptions herein, to implement the systems and / or methods.

[0172] As used in this article, depending on the context, "meeting the threshold" can mean a value greater than the threshold, greater than or equal to the threshold, less than the threshold, less than or equal to the threshold, equal to the threshold, not equal to the threshold, etc.

[0173] Although specific combinations of features are set forth in the claims and / or disclosed in the specification, these combinations are not intended to limit the disclosure of various aspects. Many of these features may be combined in ways not specifically set forth in the claims and / or not disclosed in the specification. The disclosure of various aspects includes each dependent claim in combination with each other claim in the claim set. As used herein, the phrase referring to “at least one of” the list of entries means any combination of these entries, including a single member. As an example, “at least one of a, b, or c” is intended to cover: a, b, c, a+b, a+c, b+c, and a+b+c, as well as any combination having multiple identical elements (e.g., a+a, a+a+a, a+a+b, a+a+c, a+b+b, a+c+c, b+b, b+b+b, b+b+c, c+c, and c+c+c, or any other ordering of a, b, and c).

[0174] No element, action, or instruction used herein should be construed as essential or necessary unless explicitly stated otherwise. Furthermore, as used herein, the articles “a” and “an” are intended to include one or more items and are used interchangeably with “one or more.” Furthermore, as used herein, the article “described” is intended to include one or more items mentioned in connection with the article “described” and is used interchangeably with “one or more.” Furthermore, as used herein, the terms “group” and “cluster” are intended to include one or more items and are used interchangeably with “one or more.” If only one item is desired, the phrase “only one” or similar terminology will be used. Furthermore, as used herein, the terms “having” and the like are intended to be open-ended terms that do not limit the elements they modify (e.g., an element “having” A may also have B). Furthermore, the phrase “based on” is intended to mean “at least partially based on” unless otherwise explicitly stated. Furthermore, as used herein, the term “or” is intended to be open-ended when used in a series and is interchangeable with “and / or” unless otherwise explicitly stated (e.g., if used in conjunction with “any” or “only one”).

[0175] The foregoing description is provided to enable any person skilled in the art to practice the various aspects described herein. The examples discussed herein do not limit the scope, applicability, or aspects set forth in the claims. Various modifications to these aspects will be apparent to those skilled in the art, and the general principles defined herein may be applied to other aspects. For example, the function and arrangement of the elements discussed may be changed without departing from the scope of this disclosure. Various processes or components may be omitted, substituted, or added as appropriate in various examples. For example, the described methods may be performed in a different order than described, and various actions may be added, omitted, or combined. Furthermore, features described with respect to some examples may be combined in some other examples. For example, any number of aspects set forth herein may be used to implement an apparatus or practice. Moreover, the scope of this disclosure is intended to cover such apparatuses or methods practiced using other structures, functionalities, or structures and functionalities that complement or replace the various aspects of this disclosure set forth herein. It should be understood that any aspect of this disclosure disclosed herein may be embodied by one or more elements of these claims.

[0176] The various exemplary logic blocks, modules, and circuits described in this disclosure can be implemented or performed using a general-purpose processor, digital signal processor (DSP), application-specific integrated circuit (ASIC), field-programmable gate array (FPGA) or other programmable logic device (PLD), discrete gate or transistor logic unit, discrete hardware component, or any combination thereof designed to perform the functions described herein. While the general-purpose processor may be a microprocessor, in alternative embodiments, the processor may be any commercially available processor, controller, microcontroller, or state machine. The processor may also be implemented as a combination of computing devices (e.g., a combination of a DSP and a microprocessor, multiple microprocessors, one or more microprocessors working in conjunction with a DSP core, a system-on-a-chip (SoC), or any other such configuration).

[0177] As used herein, the term "determine" encompasses a wide variety of actions. For example, "determine" can include calculation, operation, processing, deduction, investigation, lookup (e.g., searching in a table, database, or other data structure), assertion, etc. Additionally, "determine" can include receiving (e.g., receiving information), accessing (e.g., accessing data in memory), etc. Furthermore, "determine" can include parsing, selecting, picking, building, etc.

[0178] References to elements in the singular form are not intended to mean “only one” (unless specifically stated otherwise), but rather “one or more”. For example, unless specifically stated otherwise, references to elements (e.g., “processor”, “controller”, “memory”, etc.) should be understood to mean one or more elements (e.g., “one or more processors”, “one or more controllers”, “one or more memories”, etc.).

[0179] When referring to one or more elements that perform functions (e.g., steps of a method), one element may perform all functions, or more than one element may jointly perform these functions. When more than one element jointly performs these functions, each function does not need to be performed by every single element (e.g., different functions may be performed by different elements), and / or each function does not need to be performed by only one element as a whole (e.g., different elements may perform different sub-functions of a function). Similarly, when referring to one or more elements configured to cause another element (e.g., a device) to perform functions, one element may be configured to cause another element to perform all functions, or more than one element may be jointly configured to cause another element to perform these functions.

[0180] The methods disclosed herein include one or more actions for implementing the methods. These method actions may be interchanged without departing from the scope of the claims. In other words, unless a specified order of actions is given, the order and / or use of a particular action may be modified without departing from the scope of the claims. Furthermore, the various operations of the methods described above may be performed by any suitable component capable of performing the corresponding function. These components may include various hardware and / or software components and / or modules, including but not limited to circuits, application-specific integrated circuits (ASICs), or processors.

[0181] The following claims are not intended to be limited to the aspects shown herein, but should be given the full scope consistent with the language of the claims. Within the claims, unless specifically stated otherwise, reference to the singular form of an element is not intended to mean “one and only one,” but rather “one or more.” Unless specifically stated otherwise, the term “some” refers to one or more. No element of any claim shall be interpreted in accordance with 35 USC §112(f) unless that element is explicitly stated using the phrase “for a component of.” All structural and functional equivalents of the elements throughout the various aspects described herein that are known to a person of ordinary skill in the art, or will later be known, are expressly incorporated herein by reference and are intended to be covered by the claims. Furthermore, nothing disclosed herein is intended to be offered to the public, whether or not such disclosure is explicitly recited in the claims.

Claims

1. An apparatus for wireless communication, the apparatus comprising: One or more memories, the one or more memories including processor-executable instructions; and One or more processors, the one or more processors being configured to execute processor-executable instructions and cause the device to: Receive indication of non-stationary interference conditions from the radio unit (RU) associated with the device; and Use the instructions to adjust the parameters of at least one cell associated with the RU.

2. The apparatus of claim 1, wherein, in order for the apparatus to adjust the parameters, the one or more processors are configured to cause the apparatus to use the indication to adjust the radio resource management parameters of the at least one cell.

3. The apparatus of claim 2, wherein the radio resource management parameters include at least one of the following: Time resource allocation, Frequency resource allocation, Transmit power adjustment, or Transfer guidelines.

4. The apparatus of claim 1, wherein, in order for the apparatus to adjust the parameters, the one or more processors are configured to cause the apparatus to use the instructions to perform inter-cell interference coordination with the distributed unit.

5. The apparatus of claim 1, wherein, in order for the apparatus to adjust the parameters, the one or more processors are configured to cause the apparatus to adjust scheduling parameters associated with the RU.

6. The apparatus of claim 1, wherein, in order for the apparatus to adjust the parameters, the one or more processors are configured to cause the apparatus to adjust a modulation and decoding scheme associated with the RU.

7. The apparatus of claim 1, wherein the number of time slots associated with the threshold interference level in the indication time window for the non-stationary interference condition satisfies a time slot counting threshold.

8. The apparatus of claim 7, wherein the indication of the non-stationary interference condition indicates the number of time slots.

9. The apparatus of claim 7, wherein the indication of the non-stationary interference condition indicates the time window.

10. The apparatus of claim 7, wherein the indication of the non-stationary interference condition indicates the threshold interference level.

11. The apparatus of claim 7, wherein the length of the time window is configured to indicate that the interference source associated with the non-stationary interference condition is non-stationary.

12. The apparatus of claim 1, wherein the non-stationary interference condition is based at least in part on one or more metrics indicating the presence of an interference device.

13. An apparatus for wireless communication, the apparatus comprising: One or more memories, the one or more memories including processor-executable instructions; and One or more processors, the one or more processors being configured to execute processor-executable instructions and cause the device to: Send an indication of non-stationary interference conditions at the device to the distributed unit (DU) associated with the device; as well as Receives adjustments to parameters of at least one cell associated with the device using the indicated method.

14. The apparatus of claim 13, wherein the number of time slots associated with the threshold interference level in the indication time window for the non-stationary interference condition satisfies a time slot counting threshold.

15. The apparatus of claim 14, wherein the indication of the non-stationary interference condition indicates the number of time slots.

16. The apparatus of claim 14, wherein the indication of the non-stationary interference condition indicates the time window.

17. The apparatus of claim 14, wherein the indication of the non-stationary interference condition indicates the threshold interference level.

18. The apparatus of claim 14, wherein the length of the time window is configured to indicate that the interference source associated with the non-stationary interference condition is non-stationary.

19. A method for wireless communication performed by a distributed unit (DU), the method comprising: Receive an indication of non-stationary interference conditions from the radio unit (RU) associated with the DU; as well as Use the instructions to adjust the parameters of at least one cell associated with the RU.

20. A method for wireless communication performed by a radio unit (RU), the method comprising: Send an indication of the non-stationary interference condition at the RU to the distributed unit (DU) associated with the RU; as well as Receives adjustments to parameters of at least one cell associated with the RU using the indicated method.

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