Control signal for device type
By configuring monitoring occasions based on A-IoT device types within wireless communication systems, the method addresses the challenge of varying device capabilities, optimizing resource use and reducing latency for control signal reception.
Patent Information
- Application Number
- PCT/CN2023/135292
- Authority / Receiving Office
- WO · WO
- Patent Type
- Applications
- Current Assignee / Owner
- Filing Date
- 2023-11-30
- Publication Date
- 2025-06-05
AI Technical Summary
Existing wireless communication systems face challenges in efficiently monitoring and receiving control signals by ambient Internet of Things (A-IoT) devices, due to differences in device capabilities such as clock stability and energy storage, which affect the appropriate guard interval sizes for control signals in monitoring occasions.
The method involves configuring monitoring occasions based on the type of A-IoT device, with varying guard intervals to accommodate different device capabilities. This includes transmitting a monitoring occasion configuration to the A-IoT device, which then monitors for control signals within the specified occasion, and using query signals and device IDs to ensure accurate signal transmission.
This approach optimizes the use of signaling resources and reduces latency by ensuring that monitoring occasions are tailored to the specific capabilities of each A-IoT device type, thereby enhancing the efficiency and reliability of control signal reception.
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Figure CN2023135292_05062025_PF_FP_ABST
Abstract
Description
CONTROL SIGNAL FOR DEVICE TYPE
[0001] FIELD OF THE DISCLOSURE
[0002] Aspects of the present disclosure generally relate to wireless communication and specifically relate to techniques, apparatuses, and methods for monitoring a control signal for a device type.BACKGROUND
[0003] Wireless communication systems are widely deployed to provide various services that may include carrying voice, text, messaging, video, data, and / or other traffic. The services may include unicast, multicast, and / or broadcast services. Typical wireless communication systems may employ multiple-access radio access technologies (RATs) capable of supporting communication with multiple users by sharing available system resources (e.g., time domain resources, frequency domain resources, spatial domain resources, and / or device transmit power) . Aspects of such multiple-access RATs include code division multiple access (CDMA) systems, time division multiple access (TDMA) systems, frequency division multiple access (FDMA) systems, orthogonal frequency division multiple access (OFDMA) systems, single-carrier frequency division multiple access (SC-FDMA) systems, and time division synchronous code division multiple access (TD-SCDMA) systems.
[0004] The above multiple-access RATs have been adopted in various telecommunication standards to provide common protocols that enable different wireless communication devices to communicate on a municipal, national, regional, or global level. An telecommunication standard, in some aspects, is New Radio (NR) . NR, which may also be referred to as 5G, is part of a continuous mobile broadband evolution promulgated by the Third Generation Partnership Project (3GPP) . NR (and other mobile broadband evolutions beyond NR) may be designed to better support Internet of things (IoT) and reduced capability device deployments, industrial connectivity, millimeter wave (mmWave) expansion, licensed and unlicensed spectrum access, non-terrestrial network (NTN) deployment, sidelink and other device-to-device direct communication technologies (e.g., cellular vehicle-to-everything (CV2X) communication) , massive multiple-input multiple-output (MIMO) , disaggregated network architectures and network topology expansions, multiple-subscriber implementations, high-precision positioning, and / or radio frequency (RF) sensing. As the demand for mobile broadband access continues to increase, further improvements in NR may be implemented, and other radio access technologies such as 6G may be introduced, to further advance mobile broadband evolution.SUMMARY
[0005] Some aspects described herein relate to a method of wireless communication performed by a wireless device. The method may include receiving a monitoring occasion configuration that is associated with a device capability. The method may include monitoring for a control signal in a monitoring occasion in accordance with the monitoring occasion configuration.
[0006] Some aspects described herein relate to a method of wireless communication performed by a transmitting device. The method may include transmitting a monitoring occasion configuration in accordance with an indicated device capability. The method may include transmitting a control signal in a monitoring occasion in accordance with the monitoring occasion configuration.
[0007] Some aspects described herein relate to a method of wireless communication performed by a wireless device. The method may include receiving a query signal. The method may include transmitting a device identifier (ID) of the wireless device. The method may include receiving feedback with the device ID. The method may include receiving a control signal that uses the device ID.
[0008] Some aspects described herein relate to a method of wireless communication performed by a transmitting device. The method may include transmitting a query signal. The method may include receiving a device ID of an ambient internet of things (A-IoT) device. The method may include transmitting feedback with the device ID. The method may include transmitting a control signal using the device ID.
[0009] Some aspects described herein relate to an apparatus for wireless communication at a wireless device. The apparatus may include one or more memories and one or more processors coupled to the one or more memories. The one or more processors may be configured to receive a monitoring occasion configuration that is associated with a device capability. The one or more processors may be configured to monitor for a control signal in a monitoring occasion in accordance with the monitoring occasion configuration.
[0010] Some aspects described herein relate to an apparatus for wireless communication at a transmitting device. The apparatus may include one or more memories and one or more processors coupled to the one or more memories. The one or more processors may be configured to transmit a monitoring occasion configuration in accordance with an indicated device capability. The one or more processors may be configured to transmit a control signal in a monitoring occasion in accordance with the monitoring occasion configuration.
[0011] Some aspects described herein relate to an apparatus for wireless communication at a wireless device. The apparatus may include one or more memories and one or more processors coupled to the one or more memories. The one or more processors may be configured to receive a query signal. The one or more processors may be configured to transmit a device ID of the wireless device. The one or more processors may be configured to receive feedback with the device ID. The one or more processors may be configured to receive a control signal that uses the device ID.
[0012] Some aspects described herein relate to an apparatus for wireless communication at a transmitting device. The apparatus may include one or more memories and one or more processors coupled to the one or more memories. The one or more processors may be configured to transmit a query signal. The one or more processors may be configured to receive a device ID of an A-IoT device. The one or more processors may be configured to transmit feedback with the device ID. The one or more processors may be configured to transmit a control signal using the device ID.
[0013] Some aspects described herein relate to a non-transitory computer-readable medium that stores a set of instructions for wireless communication by a wireless device. The set of instructions, when executed by one or more processors of the wireless device, may cause the wireless device to receive a monitoring occasion configuration that is associated with a device capability. The set of instructions, when executed by one or more processors of the wireless device, may cause the wireless device to monitor for a control signal in a monitoring occasion in accordance with the monitoring occasion configuration.
[0014] Some aspects described herein relate to a non-transitory computer-readable medium that stores a set of instructions for wireless communication by a transmitting device. The set of instructions, when executed by one or more processors of the transmitting device, may cause the transmitting device to transmit a monitoring occasion configuration in accordance with an indicated device capability. The set of instructions, when executed by one or more processors of the transmitting device, may cause the transmitting device to transmit a control signal in a monitoring occasion in accordance with the monitoring occasion configuration.
[0015] Some aspects described herein relate to a non-transitory computer-readable medium that stores a set of instructions for wireless communication by a wireless device. The set of instructions, when executed by one or more processors of the wireless device, may cause the wireless device to receive a query signal. The set of instructions, when executed by one or more processors of the wireless device, may cause the wireless device to transmit a device ID of the wireless device. The set of instructions, when executed by one or more processors of the wireless device, may cause the wireless device to receive feedback with the device ID. The set of instructions, when executed by one or more processors of the wireless device, may cause the wireless device to receive a control signal that uses the device ID.
[0016] Some aspects described herein relate to a non-transitory computer-readable medium that stores a set of instructions for wireless communication by a transmitting device. The set of instructions, when executed by one or more processors of the network entity, may cause the transmitting device to transmit a query signal. The set of instructions, when executed by one or more processors of the transmitting device, may cause the transmitting device to receive a device ID of an A-IoT device. The set of instructions, when executed by one or more processors of the transmitting device, may cause the transmitting device to transmit feedback with the device ID. The set of instructions, when executed by one or more processors of the transmitting device, may cause the transmitting device to transmit a control signal using the device ID.
[0017] Some aspects described herein relate to an apparatus for wireless communication. The apparatus may include means for receiving a monitoring occasion configuration that is associated with a device capability. The apparatus may include means for monitoring for a control signal in a monitoring occasion in accordance with the monitoring occasion configuration.
[0018] Some aspects described herein relate to an apparatus for wireless communication. The apparatus may include means for transmitting a monitoring occasion configuration in accordance with an indicated device capability. The apparatus may include means for transmitting a control signal in a monitoring occasion in accordance with the monitoring occasion configuration.
[0019] Some aspects described herein relate to an apparatus for wireless communication. The apparatus may include means for receiving a query signal. The apparatus may include means for transmitting a device ID of the apparatus. The apparatus may include means for receiving feedback with the device ID. The apparatus may include means for receiving a control signal that uses the device ID.
[0020] Some aspects described herein relate to an apparatus for wireless communication. The apparatus may include means for transmitting a query signal. The apparatus may include means for receiving a device ID of another apparatus. The apparatus may include means for transmitting feedback with the device ID. The apparatus may include means for transmitting a control signal using the device ID.
[0021] Aspects of the present disclosure may generally be implemented by or as a method, apparatus, system, computer program product, non-transitory computer-readable medium, user equipment, base station, network node, network entity, wireless communication device, and / or processing system as substantially described with reference to, and as illustrated by, the specification and accompanying drawings.
[0022] The foregoing paragraphs of this section have broadly summarized some aspects of the present disclosure. These and additional aspects and associated advantages will be described hereinafter. The disclosed aspects may be used as a basis for modifying or designing other aspects for carrying out the same or similar purposes of the present disclosure. Such equivalent aspects do not depart from the scope of the appended claims. Characteristics of the aspects disclosed herein, both their organization and method of operation, together with associated advantages, will be better understood from the following description when considered in connection with the accompanying drawings.BRIEF DESCRIPTION OF THE DRAWINGS
[0023] The appended drawings illustrate some aspects of the present disclosure, but are not limiting of the scope of the present disclosure because the description may enable other aspects. Each of the drawings is provided for purposes of illustration and description, and not as a definition of the limits of the claims. The same or similar reference numbers in different drawings may identify the same or similar elements.
[0024] Fig. 1 is a diagram illustrating an aspect of a wireless communication network in accordance with the present disclosure.
[0025] Fig. 2 is a diagram illustrating a network node in communication with a user equipment (UE) in a wireless network in accordance with the present disclosure.
[0026] Fig. 3 is a diagram illustrating a disaggregated base station architecture in accordance with the present disclosure.
[0027] Fig. 4 is a diagram illustrating an aspect of energy harvesting, in accordance with the present disclosure.
[0028] Fig. 5 is a diagram illustrating an aspect of backscatter communication, in accordance with the present disclosure.
[0029] Fig. 6 is a diagram illustrating aspects of monitoring occasion configurations, in accordance with the present disclosure.
[0030] Fig. 7 is a diagram illustrating an aspect associated with monitoring occasion configurations, in accordance with the present disclosure.
[0031] Fig. 8 is a diagram illustrating aspects of identifying a control signal, in accordance with the present disclosure.
[0032] Fig. 9 is a diagram illustrating an aspect associated with receiving a control signal, in accordance with the present disclosure.
[0033] Fig. 10 is a diagram illustrating a process performed, in some aspects, at a wireless device or an apparatus of a wireless device, in accordance with the present disclosure.
[0034] Fig. 11 is a diagram illustrating a process performed, in some aspects, at a transmitting device or an apparatus of a transmitting device, in accordance with the present disclosure.
[0035] Fig. 12 is a diagram illustrating a process performed, in some aspects, at a wireless device or an apparatus of a wireless device, in accordance with the present disclosure.
[0036] Fig. 13 is a diagram illustrating a process performed, in some aspects, at a transmitting device or an apparatus of a transmitting device, in accordance with the present disclosure.
[0037] Fig. 14 is a diagram of an apparatus for wireless communication, in accordance with the present disclosure.
[0038] Fig. 15 is a diagram of an apparatus for wireless communication, in accordance with the present disclosure.DETAILED DESCRIPTION
[0039] Various aspects of the present disclosure are described hereinafter with reference to the accompanying drawings. However, aspects of the present disclosure may be embodied in many different forms and is not to be construed as limited to any specific aspect illustrated by or described with reference to an accompanying drawing or otherwise presented in this disclosure. Rather, these aspects are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the disclosure to those skilled in the art. One skilled in the art may appreciate that the scope of the disclosure is intended to cover any aspect of the disclosure disclosed herein, whether implemented independently of or in combination with any other aspect of the disclosure. In some aspects, an apparatus may be implemented or a method may be practiced using various combinations or quantities of the aspects set forth herein. In addition, the scope of the disclosure is intended to cover an apparatus having, or a method that is practiced using, other structures and / or functionalities in addition to or other than the structures and / or functionalities with which various aspects of the disclosure set forth herein may be practiced. Any aspect of the disclosure disclosed herein may be embodied by one or more elements of a claim.
[0040] Several aspects of telecommunication systems will now be presented with reference to various methods, operations, apparatuses, and techniques. These methods, operations, apparatuses, and techniques will be described in the following detailed description and illustrated in the accompanying drawings by various blocks, modules, components, circuits, steps, processes, or algorithms (collectively referred to as “elements” ) . These elements may be implemented using hardware, software, or a combination of hardware and software. Whether such elements are implemented as hardware or software depends upon the particular application and design constraints imposed on the overall system.
[0041] A low capability device, such as an ambient internet of things (A-IoT) device or a radio frequency identifier (RFID) tag, may rely on passive communication technologies, such as backscatter communication. Backscatter communication involves using a radio frequency (RF) signal to write or transmit data without a battery or a power source. A transmitter / reader may be an RF source that transmits a continuous wave (CW) signal that may be received by multiple devices, such as a reader. A wireless device, such as a passive user equipment (UE) (e.g., a tag, an ambient IoT device, a UE without energy source, a backscattering device) , may harvest energy (e.g., tens or hundreds of microwatts of electricity) from the signal. The passive UE may use passive reflection and modulation of the signal to transmit a backscatter signal using the harvested energy. That is, the passive UE may modulate the signal to encode data and then reflect a fraction of the wave to the reader or to the transmitter / reader. The backscatter signal may be encoded with information bits (e.g., identifying information, sensor information) of the passive UE. The reader may receive the backscatter signal and read the information bits.
[0042] A-IoT devices may be categorized according to A-IoT device types. In some aspects, an A-IoT device of type A may have no energy storage and no independent signal generation (i.e., backscattering transmission) . An A-IoT device of type B may have energy storage but no independent signal generation (i.e., backscattering transmission) . An A-IoT device of type C may have energy storage and independent signal generation (i.e., active RF component for transmission) .
[0043] An A-IoT device may monitor for and receive a control signal for configuration and control purposes. The A-IoT device may monitor for the control signal in monitoring occasions. However, different A-IoT device types may have different capabilities (e.g., filtering, clock stability, energy storage) and may expect different guard interval sizes around a control signal in a monitoring occasion. If the guard interval is too small, communications may degrade. Degraded communications increase latency and waste signaling resources. If the guard interval is too big, signaling resources are wasted.
[0044] Various aspects relate generally to wireless communications for A-IoT devices. Some aspects more specifically relate to receiving control signals at A-IoT devices. According to various aspects described herein, an A-IoT device may be configured with a monitoring occasion that is appropriate for the A-IoT device type. In some aspects, the guard interval in a monitoring occasion may be based at least in part on an A-IoT device type of the A-IoT device. Therefore, a monitoring occasion configuration for one A-IoT device type may be different than a monitoring occasion configuration for another A-IoT device type. In some aspects, the guard interval for A-IoT device type B may be different than for A-IoT device type C because a type B A-IoT device may have a different clock stability than a type B A-IoT device. The type B A-IoT device may have looser clock stability due to lower costs and a lower energy storage capability, as compared to a type C A-IoT device.
[0045] In some aspects, if the control signal is for a type A A-IoT device, the transmitting device may not preconfigure the control signal monitoring occasions. The type A A-IoT device may not have enough energy to monitor for a control signal. The type A A-IoT device may have to quickly determine whether the control signal is for the A-IoT device.
[0046] In some aspects, the transmitting device may transmit a query signal, and the A-IoT device may transmit its device ID. If the A-IoT device is the target device of the transmitting device, the transmitting device may acknowledge the A-IoT device (with the device ID) and transmit a control signal to the A-IoT device. The use of the query signal may allow the A-IoT device to not have to maintain a connected status with the transmitting device.
[0047] Particular aspects of the subject matter described in this disclosure can be implemented to realize one or more of the following potential advantages. In some aspects, by using a monitoring occasion configuration that is based at least in part on the A-IoT device type, different types of A-IoT devices may have different monitoring occasions (e.g., different guard intervals) that are appropriate for the A-IoT device types. As a result of more appropriate monitoring occasions, signaling resources are conserved and unnecessary latency is reduced.
[0048] Multiple-access radio access technologies (RATs) have been adopted in various telecommunication standards to provide common protocols that enable wireless communication devices to communicate on a municipal, enterprise, national, regional, or global level. In some aspects, 5G New Radio (NR) is part of a continuous mobile broadband evolution promulgated by the Third Generation Partnership Project (3GPP) . 5G NR supports various technologies and use cases including enhanced mobile broadband (eMBB) , ultra-reliable low-latency communication (URLLC) , massive machine-type communication (mMTC) , millimeter wave (mmWave) technology, beamforming, network slicing, edge computing, Internet of Things (IoT) connectivity and management, and network function virtualization (NFV) .
[0049] As the demand for broadband access increases and as technologies supported by wireless communication networks evolve, further technological improvements may be adopted in or implemented for 5G NR or future RATs, such as 6G, to further advance the evolution of wireless communication for a wide variety of existing and new use cases and applications. Such technological improvements may be associated with new frequency band expansion, licensed and unlicensed spectrum access, overlapping spectrum use, small cell deployments, non-terrestrial network (NTN) deployments, disaggregated network architectures and network topology expansion, device aggregation, advanced duplex communication, sidelink and other device-to-device direct communication, IoT (including passive or ambient IoT) networks, reduced capability (RedCap) UE functionality, industrial connectivity, multiple-subscriber implementations, high-precision positioning, radio frequency (RF) sensing, and / or artificial intelligence or machine learning (AI / ML) . These technological improvements may support use cases such as wireless backhauls, wireless data centers, extended reality (XR) and metaverse applications, meta services for supporting vehicle connectivity, holographic and mixed reality communication, autonomous and collaborative robots, vehicle platooning and cooperative maneuvering, sensing networks, gesture monitoring, human-brain interfacing, digital twin applications, asset management, and universal coverage applications using non-terrestrial and / or aerial platforms. The methods, operations, apparatuses, and techniques described herein may enable one or more of the foregoing technologies and / or support one or more of the foregoing use cases.
[0050] Fig. 1 is a diagram illustrating an aspect of a wireless communication network 100 in accordance with the present disclosure. The wireless communication network 100 may be or may include elements of a 5G (or NR) network or a 6G network. The wireless communication network 100 may include multiple network nodes 110, shown as a network node (NN) 110a, a network node 110b, a network node 110c, and a network node 110d. The network nodes 110 may support communications with multiple UEs 120, shown as a UE 120a, a UE 120b, a UE 120c, a UE 120d, and a UE 120e.
[0051] The network nodes 110 and the UEs 120 of the wireless communication network 100 may communicate using the electromagnetic spectrum, which may be subdivided by frequency or wavelength into various classes, bands, carriers, and / or channels. In some aspects, devices of the wireless communication network 100 may communicate using one or more operating bands. In some aspects, multiple wireless networks 100 may be deployed in a given geographic area. Each wireless communication network 100 may support a particular radio access technology (RAT) (which may also be referred to as an air interface) and may operate on one or more carrier frequencies in one or more frequency ranges. Aspects of RATs include a 4G RAT, a 5G / NR RAT, and / or a 6G RAT. In some aspects, when multiple RATs are deployed in a given geographic area, each RAT in the geographic area may operate on different frequencies to avoid interference with one another.
[0052] Various operating bands have been defined as frequency range designations FR1 (410 MHz through 7.125 GHz) , FR2 (24.25 GHz through 52.6 GHz) , FR3 (7.125 GHz through 24.25 GHz) , FR4a or FR4-1 (52.6 GHz through 71 GHz) , FR4 (52.6 GHz through 114.25 GHz) , and FR5 (114.25 GHz through 300 GHz) . Although a portion of FR1 is greater than 6 GHz, FR1 is often referred to (interchangeably) as a “Sub-6 GHz” band in some documents and articles. Similarly, FR2 is often referred to (interchangeably) as a “millimeter wave” band in some documents and articles, despite being different than the extremely high frequency (EHF) band (30 GHz through 300 GHz) , which is identified by the International Telecommunications Union (ITU) as a “millimeter wave” band. The frequencies between FR1 and FR2 are often referred to as mid-band frequencies, which include FR3. Frequency bands falling within FR3 may inherit FR1 characteristics or FR2 characteristics, and thus may effectively extend features of FR1 or FR2 into mid-band frequencies. Thus, “sub-6 GHz, ” if used herein, may broadly refer to frequencies that are less than 6 GHz, that are within FR1, and / or that are included in mid-band frequencies. Similarly, the term “millimeter wave, ” if used herein, may broadly refer to frequencies that are included in mid-band frequencies, that are within FR2, FR4, FR4-a or FR4-1, or FR5, and / or that are within the EHF band. Higher frequency bands may extend 5G NR operation, 6G operation, and / or other RATs beyond 52.6 GHz. In some aspects, each of FR4a, FR4-1, FR4, and FR5 falls within the EHF band. In some aspects, the wireless communication network 100 may implement dynamic spectrum sharing (DSS) , in which multiple RATs (e.g., 4G / LTE and 5G / NR) are implemented with dynamic bandwidth allocation (e.g., based on user demand) in a single frequency band. It is contemplated that the frequencies included in these operating bands (e.g., FR1, FR2, FR3, FR4, FR4-a, FR4-1, and / or FR5) may be modified, and techniques described herein may be applicable to those modified frequency ranges.
[0053] A network node 110 may include one or more devices, components, or systems that enable communication between a UE 120 and one or more devices, components, or systems of the wireless communication network 100. A network node 110 may be, may include, or may also be referred to as an NR network node, a 5G network node, a 6G network node, a Node B, an eNB, a gNB, an access point (AP) , a transmission reception point (TRP) , a mobility element, a core, a network entity, a network element, a network equipment, and / or another type of device, component, or system included in a radio access network (RAN) .
[0054] A network node 110 may be implemented as a single physical node (e.g., a single physical structure) or may be implemented as two or more physical nodes (e.g., two or more distinct physical structures) . In some aspects, a network node 110 may be a device or system that implements part of a radio protocol stack, a device or system that implements a full radio protocol stack (such as a full gNB protocol stack) , or a collection of devices or systems that collectively implement the full radio protocol stack. In some aspects, and as shown, a network node 110 may be an aggregated network node (having an aggregated architecture) , meaning that the network node 110 may implement a full radio protocol stack that is physically and logically integrated within a single node (e.g., a single physical structure) in the wireless communication network 100. In some aspects, an aggregated network node 110 may consist of a single standalone base station or a single TRP that uses a full radio protocol stack to enable or facilitate communication between a UE 120 and a core network of the wireless communication network 100.
[0055] Alternatively, and as also shown, a network node 110 may be a disaggregated network node (sometimes referred to as a disaggregated base station) , meaning that the network node 110 may implement a radio protocol stack that is physically distributed and / or logically distributed among two or more nodes in the same geographic location or in different geographic locations. In some aspects, a disaggregated network node may have a disaggregated architecture. In some deployments, disaggregated network nodes 110 may be used in an integrated access and backhaul (IAB) network, in an open radio access network (O-RAN) (such as a network configuration in compliance with the O-RAN Alliance) , or in a virtualized radio access network (vRAN) , also known as a cloud radio access network (C-RAN) , to facilitate scaling by separating base station functionality into multiple units that can be individually deployed.
[0056] The network nodes 110 of the wireless communication network 100 may include one or more central units (CUs) , one or more distributed units (DUs) , and / or one or more radio units (RUs) . A CU may host one or more higher layer control functions, such as radio resource control (RRC) functions, packet data convergence protocol (PDCP) functions, and / or service data adaptation protocol (SDAP) functions. A DU may host one or more of a radio link control (RLC) layer, a medium access control (MAC) layer, and / or one or more higher physical (PHY) layers depending, at least in part, on a functional split, such as a functional split defined by the 3GPP. In some aspects, a DU also may host one or more lower PHY layer functions, such as a fast Fourier transform (FFT) , an inverse FFT (iFFT) , beamforming, physical random access channel (PRACH) extraction and filtering, and / or scheduling of resources for one or more UEs 120. An RU may host RF processing functions or lower PHY layer functions, such as an FFT, an iFFT, beamforming, or PRACH extraction and filtering, in some aspects, according to a functional split, such as a lower layer functional split. In such an architecture, each RU can be operated to handle over the air (OTA) communication with one or more UEs 120.
[0057] In some aspects, a single network node 110 may include a combination of one or more CUs, one or more DUs, and / or one or more RUs. Additionally or alternatively, a network node 110 may include one or more Near-Real Time (Near-RT) RAN Intelligent Controllers (RICs) and / or one or more Non-Real Time (Non-RT) RICs. In some aspects, a CU, a DU, and / or an RU may be implemented as a virtual unit, such as a virtual central unit (VCU) , a virtual distributed unit (VDU) , or a virtual radio unit (VRU) . A virtual unit may be implemented as a virtual network function, such as associated with a cloud deployment.
[0058] Some network nodes 110 (e.g., a base station, an RU, or a TRP) may provide communication coverage for a particular geographic area. In the 3GPP, the term “cell” can refer to a coverage area of a network node 110 or to a network node 110 itself, depending on the context in which the term is used. A network node 110 may support one or multiple (e.g., three) cells. In some aspects, a network node 110 may provide communication coverage for a macro cell, a pico cell, a femto cell, or another type of cell. A macro cell may cover a relatively large geographic area (e.g., several kilometers in radius) and may allow unrestricted access by UEs 120 with service subscriptions. A pico cell may cover a relatively small geographic area and may allow unrestricted access by UEs 120 with service subscriptions. A femto cell may cover a relatively small geographic area (e.g., a home) and may allow restricted access by UEs 120 having association with the femto cell (e.g., UEs 120 in a closed subscriber group (CSG) ) . A network node 110 for a macro cell may be referred to as a macro network node. A network node 110 for a pico cell may be referred to as a pico network node. A network node 110 for a femto cell may be referred to as a femto network node or an in-home network node. In some aspects, a cell may not necessarily be stationary. In some aspects, the geographic area of the cell may move according to the location of an associated mobile network node 110 (e.g., a train, a satellite base station, an unmanned aerial vehicle, or a non-terrestrial network (NTN) network node) .
[0059] The wireless communication network 100 may be a heterogeneous network that includes network nodes 110 of different types, such as macro network nodes, pico network nodes, femto network nodes, relay network nodes, aggregated network nodes, and / or disaggregated network nodes. In Fig. 1, the network node 110a may be a macro network node for a macro cell 130a, the network node 110b may be a pico network node for a pico cell 130b, and the network node 110c may be a femto network node for a femto cell 130c. Various different types of network nodes 110 may generally transmit at different power levels, serve different coverage areas, and / or have different impacts on interference in the wireless communication network 100 than other types of network nodes 110. In some aspects, macro network nodes may have a high transmit power level (e.g., 5 to 40 watts) , whereas pico network nodes, femto network nodes, and relay network nodes may have lower transmit power levels (e.g., 0.1 to 2 watts) .
[0060] In some aspects, a network node 110 may be, may include, or may operate as an RU, a TRP, or a base station that communicates with one or more UEs 120 via a radio access link (which may be referred to as a “Uu” link) . The radio access link may include a downlink and an uplink. “Downlink” (or “DL” ) refers to a communication direction from a network node 110 to a UE 120, and “uplink” (or “UL” ) refers to a communication direction from a UE 120 to a network node 110. Downlink channels may include one or more control channels and one or more data channels. A downlink control channel may be used to transmit downlink control information (DCI) (e.g., scheduling information, reference signals, and / or configuration information) from a network node 110 to a UE 120. A downlink data channel may be used to transmit downlink data (e.g., user data associated with a UE 120) from a network node 110 to a UE 120. Downlink control channels may include one or more physical downlink control channels (PDCCHs) , and downlink data channels may include one or more physical downlink shared channels (PDSCHs) . Uplink channels may similarly include one or more control channels and one or more data channels. An uplink control channel may be used to transmit uplink control information (UCI) (e.g., reference signals and / or feedback corresponding to one or more downlink transmissions) from a UE 120 to a network node 110. An uplink data channel may be used to transmit uplink data (e.g., user data associated with a UE 120) from a UE 120 to a network node 110. Uplink control channels may include one or more physical uplink control channels (PUCCHs) , and uplink data channels may include one or more physical uplink shared channels (PUSCHs) . The downlink and the uplink may each include a set of resources on which the network node 110 and the UE 120 may communicate.
[0061] Downlink and uplink resources may include time domain resources (frames, subframes, slots, and / or symbols) , frequency domain resources (frequency bands, component carriers, subcarriers, resource blocks, and / or resource elements) , and / or spatial domain resources (particular transmit directions and / or beam parameters) . Frequency domain resources of some bands may be subdivided into bandwidth parts (BWPs) . A BWP may be a continuous block of frequency domain resources (e.g., a continuous block of resource blocks) that are allocated for one or more UEs 120. A UE 120 may be configured with both an uplink BWP and a downlink BWP (where the uplink BWP and the downlink BWP may be the same BWP or different BWPs) . A BWP may be dynamically configured (e.g., by a network node 110 transmitting a DCI configuration to the one or more UEs 120) and / or reconfigured, which means that a BWP can be adjusted in real-time (or near-real-time) based on changing network conditions in the wireless communication network 100 and / or based on the specific requirements of the one or more UEs 120. This enables more efficient use of the available frequency domain resources in the wireless communication network 100 because fewer frequency domain resources may be allocated to a BWP for a UE 120 (which may reduce the quantity of frequency domain resources that a UE 120 is required to monitor) , leaving more frequency domain resources to be spread across multiple UEs 120. Thus, BWPs may also assist in the implementation of lower-capability UEs 120 by facilitating the configuration of smaller bandwidths for communication by such UEs 120.
[0062] As described above, in some aspects, the wireless communication network 100 may be, may include, or may be included in, an IAB network. In an IAB network, at least one network node 110 is an anchor network node that communicates with a core network. An anchor network node 110 may also be referred to as an IAB donor (or “IAB-donor” ) . The anchor network node 110 may connect to the core network via a wired backhaul link. In some aspects, an Ng interface of the anchor network node 110 may terminate at the core network. Additionally or alternatively, an anchor network node 110 may connect to one or more devices of the core network that provide a core access and mobility management function (AMF) . An IAB network also generally includes multiple non-anchor network nodes 110, which may also be referred to as relay network nodes or simply as IAB nodes (or “IAB-nodes” ) . Each non-anchor network node 110 may communicate directly with the anchor network node 110 via a wireless backhaul link to access the core network, or may communicate indirectly with the anchor network node 110 via one or more other non-anchor network nodes 110 and associated wireless backhaul links that form a backhaul path to the core network. Some anchor network node 110 or other non-anchor network node 110 may also communicate directly with one or more UEs 120 via wireless access links that carry access traffic. In some aspects, network resources for wireless communication (such as time resources, frequency resources, and / or spatial resources) may be shared between access links and backhaul links.
[0063] In some aspects, any network node 110 that relays communications may be referred to as a relay network node, a relay station, or simply as a relay. A relay may receive a transmission of a communication from an upstream station (e.g., another network node 110 or a UE 120) and transmit the communication to a downstream station (e.g., a UE 120 or another network node 110) . In this case, the wireless communication network 100 may include or be referred to as a “multi-hop network. ” In Fig. 1, the network node 110d (e.g., a relay network node) may communicate with the network node 110a (e.g., a macro network node) and the UE 120d in order to facilitate communication between the network node 110a and the UE 120d. Additionally or alternatively, a UE 120 may be or may operate as a relay station that can relay transmissions to or from other UEs 120. A UE 120 that relays communications may be referred to as a UE relay or a relay UE.
[0064] The UEs 120 may be physically dispersed throughout the wireless communication network 100, and each UE 120 may be stationary or mobile. A UE 120 may be, may include, or may be included in an access terminal, another terminal, a mobile station, or a subscriber unit. A UE 120 may be, include, or be coupled with a cellular phone (e.g., a smart phone) , a personal digital assistant (PDA) , a wireless modem, a wireless communication device, a handheld device, a laptop computer, a cordless phone, a wireless local loop (WLL) station, a tablet, a camera, a gaming device, a netbook, a smartbook, an ultrabook, a medical device, a biometric device, a wearable device (e.g., a smart watch, smart clothing, smart glasses, a smart wristband, and / or smart jewelry, such as a smart ring or a smart bracelet) , an entertainment device (e.g., a music device, a video device, and / or a satellite radio) , an extended reality (XR) device, a vehicular component or sensor, a smart meter or sensor, industrial manufacturing equipment, a Global Navigation Satellite System (GNSS) device (such as a Global Positioning System device or another type of positioning device) , a UE function of a network node, and / or any other suitable device or function that may communicate via a wireless medium.
[0065] A UE 120 and / or a network node 110 may include one or more chips, system-on-chips (SoCs) , chipsets, packages, or devices that individually or collectively constitute or comprise a processing system. The processing system includes processor (or “processing” ) circuitry in the form of one or multiple processors, microprocessors, processing units (such as central processing units (CPUs) , graphics processing units (GPUs) , neural processing units (NPUs) and / or digital signal processors (DSPs) ) , processing blocks, application-specific integrated circuits (ASIC) , programmable logic devices (PLDs) (such as field programmable gate arrays (FPGAs) ) , or other discrete gate or transistor logic or circuitry (all of which may be generally referred to herein individually as “processors” or collectively as “the processor” or “the processor circuitry” ) . One or more of the processors may be individually or collectively configurable or configured to perform various functions or operations described herein. A group of processors collectively configurable or configured to perform a set of functions may include a first processor configurable or configured to perform a first function of the set and a second processor configurable or configured to perform a second function of the set, or may include the group of processors all being configured or configurable to perform the set of functions.
[0066] The processing system may further include memory circuitry in the form of one or more memory devices, memory blocks, memory elements or other discrete gate or transistor logic or circuitry, each of which may include tangible storage media such as random-access memory (RAM) or read-only memory (ROM) , or combinations thereof (all of which may be generally referred to herein individually as “memories” or collectively as “the memory” or “the memory circuitry” ) . One or more of the memories may be coupled (e.g., operatively coupled, communicatively coupled, electronically coupled, or electrically coupled) with one or more of the processors and may individually or collectively store processor-executable code (such as software) that, when executed by one or more of the processors, may configure one or more of the processors to perform various functions or operations described herein. Additionally or alternatively, in some aspects, one or more of the processors may be preconfigured to perform various functions or operations described herein without requiring configuration by software. The processing system may further include or be coupled with one or more modems (such as a Wi-Fi (e.g., IEEE compliant) modem or a cellular (e.g., 3GPP 4G LTE, 5G, or 6G compliant) modem) . In some implementations, one or more processors of the processing system include or implement one or more of the modems. The processing system may further include or be coupled with multiple radios (collectively “the radio” ) , multiple RF chains, or multiple transceivers, each of which may in turn be coupled with one or more of multiple antennas. In some implementations, one or more processors of the processing system include or implement one or more of the radios, RF chains or transceivers. The UE 120 may include or may be included in a housing that houses components associated with the UE 120 including the processing system.
[0067] Some UEs 120 may be considered machine-type communication (MTC) UEs, evolved or enhanced machine-type communication (eMTC) , UEs, further enhanced eMTC (feMTC) UEs, or enhanced feMTC (efeMTC) UEs, or further evolutions thereof, all of which may be simply referred to as “MTC UEs” ) . An MTC UE may be, may include, or may be included in or coupled with a robot, an uncrewed aerial vehicle, a remote device, a sensor, a meter, a monitor, and / or a location tag. Some UEs 120 may be considered IoT devices and / or may be implemented as NB-IoT (narrowband IoT) devices. An IoT UE or NB-IoT device may be, may include, or may be included in or coupled with an industrial machine, an appliance, a refrigerator, a doorbell camera device, a home automation device, and / or a light fixture. Some UEs 120 may be considered Customer Premises Equipment, which may include telecommunications devices that are installed at a customer location (such as a home or office) to enable access to a service provider's network (such as included in or in communication with the wireless communication network 100) .
[0068] Some UEs 120 may be classified according to different categories in association with different complexities and / or different capabilities. UEs 120 in a first category may facilitate massive IoT in the wireless communication network 100, and may offer low complexity and / or cost relative to UEs 120 in a second category. UEs 120 in a second category may include mission-critical IoT devices, legacy UEs, baseline UEs, high-tier UEs, advanced UEs, full-capability UEs, and / or premium UEs that are capable of ultra-reliable low-latency communication (URLLC) , enhanced mobile broadband (eMBB) , and / or precise positioning in the wireless communication network 100. A third category of UEs 120 may have mid-tier complexity and / or capability (e.g., a capability between UEs 120 of the first category and UEs 120 of the second capability) . A UE 120 of the third category may be referred to as a reduced capacity UE ( “RedCap UE” ) , a mid-tier UE, an NR-Light UE, and / or an NR-Lite UE. RedCap UEs may bridge a gap between the capability and complexity of NB-IoT devices and / or eMTC UEs, and mission-critical IoT devices and / or premium UEs. RedCap UEs may include wearable devices, IoT devices, industrial sensors, and / or cameras that are associated with a limited bandwidth, power capacity, and / or transmission range. RedCap UEs may support healthcare environments, building automation, electrical distribution, process automation, transport and logistics, and / or smart city deployments.
[0069] In some aspects, two or more UEs 120 (shown as UE 120a and UE 120e) may communicate directly with one another using sidelink communications (without communicating by way of a network node 110 as an intermediary) . As an aspect, the UE 120a may directly transmit data, control information, or other signaling as a sidelink communication to the UE 120e. This is in contrast to the UE 120a first transmitting data in an UL communication to a network node 110, which then transmits the data to the UE 120e in a DL communication. In various aspects, the UEs 120 may transmit and receive sidelink communications using peer-to-peer (P2P) communication protocols, device-to-device (D2D) communication protocols, vehicle-to-everything (V2X) communication protocols (which may include vehicle-to-vehicle (V2V) protocols, vehicle-to-infrastructure (V2I) protocols, and / or vehicle-to-pedestrian (V2P) protocols) , and / or mesh network communication protocols. In some deployments and configurations, a network node 110 may schedule and / or allocate resources for sidelink communications between UEs 120 in the wireless communication network 100. In some other deployments and configurations, a UE 120 (instead of a network node 110) may perform, or collaborate or negotiate with one or more other UEs to perform, scheduling operations, resource selection operations, and / or other operations for sidelink communications.
[0070] In various aspects, some of the network nodes 110 and the UEs 120 of the wireless communication network 100 may be configured for full-duplex operation in addition to half-duplex operation. A network node 110 or a UE 120 operating in a half-duplex mode may perform only one of transmission or reception during particular time resources, such as during particular slots, symbols, or other time periods. Half-duplex operation may involve time-division duplexing (TDD) , in which DL transmissions of the network node 110 and UL transmissions of the UE 120 do not occur in the same time resources (that is, the transmissions do not overlap in time) . In contrast, a network node 110 or a UE 120 operating in a full-duplex mode can transmit and receive communications concurrently (e.g., in the same time resources) . By operating in a full-duplex mode, network nodes 110 and / or UEs 120 may generally increase the capacity of the network and the radio access link. In some aspects, full-duplex operation may involve frequency-division duplexing (FDD) , in which DL transmissions of the network node 110 are performed in a first frequency band or on a first component carrier and transmissions of the UE 120 are performed in a second frequency band or on a second component carrier different than the first frequency band or the first component carrier, respectively. In some aspects, full-duplex operation may be enabled for a UE 120 but not for a network node 110. In some aspects, a UE 120 may simultaneously transmit an UL transmission to a first network node 110 and receive a DL transmission from a second network node 110 in the same time resources. In some other aspects, full-duplex operation may be enabled for a network node 110 but not for a UE 120. In some aspects, a network node 110 may simultaneously transmit a DL transmission to a first UE 120 and receive an UL transmission from a second UE 120 in the same time resources. In some other aspects, full-duplex operation may be enabled for both a network node 110 and a UE 120.
[0071] In some aspects, the UEs 120 and the network nodes 110 may perform MIMO communication. “MIMO” generally refers to transmitting or receiving multiple signals (such as multiple layers or multiple data streams) simultaneously over the same time and frequency resources. MIMO techniques generally exploit multipath propagation. MIMO may be implemented using various spatial processing or spatial multiplexing operations. In some aspects, MIMO may support simultaneous transmission to multiple receivers, referred to as multi-user MIMO (MU-MIMO) . Some radio access technologies (RATs) may employ advanced MIMO techniques, such as mTRP operation (including redundant transmission or reception on multiple TRPs) , reciprocity in the time domain or the frequency domain, single-frequency-network (SFN) transmission, or non-coherent joint transmission (NCJT) .
[0072] In some aspects, a wireless device (e.g., a UE 120 without a power source, an A-IoT device) may include a communication manager 140. As described in more detail elsewhere herein, the communication manager 140 may receive a monitoring occasion configuration that is associated with a device capability. The communication manager 140 may monitor for a control signal in a monitoring occasion in accordance with the monitoring occasion configuration.
[0073] In some aspects, the communication manager 140 may receive a query signal. The communication manager 140 may transmit a device ID of the wireless device; receive feedback with the device ID. The communication manager 140 may receive a control signal that uses the device ID. Additionally, or alternatively, the communication manager 140 may perform one or more other operations described herein.
[0074] In some aspects, a transmitting device (e.g., a network node 110, a UE 120) may include a communication manager 150. As described in more detail elsewhere herein, the communication manager 150 may transmit a monitoring occasion configuration in accordance with an indicated device capability. The communication manager 150 may transmit a control signal in a monitoring occasion in accordance with the monitoring occasion configuration. Additionally, or alternatively, the communication manager 150 may perform one or more other operations described herein.
[0075] In some aspects, the communication manager 150 may transmit a query signal. The communication manager 150 may receive a device ID of an ambient internet of things (IoT) device. The communication manager 150 may transmit feedback with the device ID. The communication manager 150 may transmit a control signal using the device ID. Additionally, or alternatively, the communication manager 150 may perform one or more other operations described herein.
[0076] As indicated above, Fig. 1 is provided as an aspect. Other aspects may differ from what is described with regard to Fig. 1.
[0077] Fig. 2 is a diagram illustrating, in some aspects, a network node 110 in communication with a UE 120 in a wireless network in accordance with the present disclosure.
[0078] As shown in Fig. 2, the network node 110 may include a data source 212, a transmit processor 214, a transmit (TX) MIMO processor 216, a set of modems 232 (shown as 232a through 232t, where t ≥ 1) , a set of antennas 234 (shown as 234a through 234v, where v ≥ 1) , a MIMO detector 236, a receive processor 238, a data sink 239, a controller / processor 240, a memory 242, a communication unit 244, a scheduler 246, and / or a communication manager 150. In some configurations, one or a combination of the antenna (s) 234, the modem (s) 232, the MIMO detector 236, the receive processor 238, the transmit processor 214, and / or the TX MIMO processor 216 may be included in a transceiver of the network node 110. The transceiver may be under control of and used by one or more processors, such as the controller / processor 240, and in some aspects in conjunction with processor-readable code stored in the memory 242, to perform aspects of the methods, processes, and / or operations described herein. In some aspects, the network node 110 may include one or more interfaces, communication components, and / or other components that facilitate communication with the UE 120 or another network node.
[0079] The terms “processor, ” “controller, ” or “controller / processor” may refer to one or more controllers and / or one or more processors. In some aspects, reference to “a / the processor, ” “a / the controller / processor, ” or the like (in the singular) should be understood to refer to any one or more of the processors described in connection with Fig. 2, such as a single processor or a combination of multiple different processors. Reference to “one or more processors” should be understood to refer to any one or more of the processors described in connection with Fig. 2. In some aspects, one or more processors of the network node 110 may include transmit processor 214, TX MIMO processor 216, MIMO detector 236, receive processor 238, and / or controller / processor 240. Similarly, one or more processors of the UE 120 may include MIMO detector 256, receive processor 258, transmit processor 264, TX MIMO processor 266, and / or controller / processor 280.
[0080] In some aspects, a single processor may perform all of the operations described as being performed by the one or more processors. In some aspects, a first set of (one or more) processors of the one or more processors may perform a first operation described as being performed by the one or more processors, and a second set of (one or more) processors of the one or more processors may perform a second operation described as being performed by the one or more processors. The first set of processors and the second set of processors may be the same set of processors or may be different sets of processors. Reference to “one or more memories” should be understood to refer to any one or more memories of a corresponding device, such as the memory described in connection with Fig. 2. In some aspects, operation described as being performed by one or more memories can be performed by the same subset of the one or more memories or different subsets of the one or more memories.
[0081] For downlink communication from the network node 110 to the UE 120, the transmit processor 214 may receive data ( “downlink data” ) intended for the UE 120 (or a set of UEs that includes the UE 120) from the data source 212 (such as a data pipeline or a data queue) . In some aspects, the transmit processor 214 may select one or more MCSs for the UE 120 in accordance with one or more channel quality indicators (CQIs) received from the UE 120. The network node 110 may process the data (e.g., including encoding the data) for transmission to the UE 120 on a downlink in accordance with the MCS (s) selected for the UE 120 to generate data symbols. The transmit processor 214 may process system information (e.g., semi-static resource partitioning information (SRPI) ) and / or control information (e.g., CQI requests, grants, and / or upper layer signaling) and provide overhead symbols and / or control symbols. The transmit processor 214 may generate reference symbols for reference signals (e.g., a cell-specific reference signal (CRS) , a demodulation reference signal (DMRS) , or a channel state information (CSI) reference signal (CSI-RS) ) and / or synchronization signals (e.g., a primary synchronization signal (PSS) or a secondary synchronization signals (SSS) ) .
[0082] The TX MIMO processor 216 may perform spatial processing (e.g., precoding) on the data symbols, the control symbols, the overhead symbols, and / or the reference symbols, if applicable, and may provide a set of output symbol streams (e.g., T output symbol streams) to the set of modems 232. In some aspects, each output symbol stream may be provided to a respective modulator component (shown as MOD) of a modem 232. Each modem 232 may use the respective modulator component to process (e.g., to modulate) a respective output symbol stream (e.g., for orthogonal frequency division multiplexing ( (OFDM) ) to obtain an output sample stream. Each modem 232 may further use the respective modulator component to process (e.g., convert to analog, amplify, filter, and / or upconvert) the output sample stream to obtain a time domain downlink signal. The modems 232a through 232t may together transmit a set of downlink signals (e.g., T downlink signals) via the corresponding set of antennas 234.
[0083] A downlink signal may include a DCI communication, a MAC control element (MAC CE) communication, an RRC communication, a downlink reference signal, or another type of downlink communication. Downlink signals may be transmitted on a PDCCH, a PDSCH, and / or on another downlink channel. A downlink signal may carry one or more transport blocks (TBs) of data. A TB may be a unit of data that is transmitted over an air interface in the wireless communication network 100. A data stream (e.g., from the data source 212) may be encoded into multiple TBs for transmission over the air interface. The quantity of TBs used to carry the data associated with a particular data stream may be associated with a TB size common to the multiple TBs. The TB size may be based on or otherwise associated with radio channel conditions of the air interface, the MCS used for encoding the data, the downlink resources allocated for transmitting the data, and / or another parameter. In general, the larger the TB size, the greater the amount of data that can be transmitted in a single transmission, which reduces signaling overhead. However, larger TB sizes may be more prone to transmission and / or reception errors than smaller TB sizes, but such errors may be mitigated by more robust error correction techniques.
[0084] For uplink communication from the UE 120 to the network node 110, uplink signals from the UE 120 may be received by an antenna 234, may be processed by a modem 232 (e.g., a demodulator component, shown as DEMOD, of a modem 232) , may be detected by the MIMO detector 236 (e.g., a receive (Rx) MIMO processor) if applicable, and / or may be further processed by the receive processor 238 to obtain decoded data and / or control information. The receive processor 238 may provide the decoded data to a data sink 239 (which may be a data pipeline, a data queue, and / or another type of data sink) and provide the decoded control information to a processor, such as the controller / processor 240.
[0085] The network node 110 may use the scheduler 246 to schedule one or more UEs 120 for downlink or uplink communications. In some aspects, the scheduler 246 may use DCI to dynamically schedule DL transmissions to the UE 120 and / or UL transmissions from the UE 120. In some aspects, the scheduler 246 may allocate recurring time domain resources and / or frequency domain resources that the UE 120 may use to transmit and / or receive communications using an RRC configuration (e.g., a semi-static configuration) , in some aspects, to perform semi-persistent scheduling (SPS) or to configure a configured grant (CG) for the UE 120.
[0086] One or more of the transmit processor 214, the TX MIMO processor 216, the modem 232, the antenna 234, the MIMO detector 236, the receive processor 238, and / or the controller / processor 240 may be included in an RF chain of the network node 110. An RF chain may include one or more filters, mixers, oscillators, amplifiers, analog-to-digital converters (ADCs) , and / or other devices that convert between an analog signal (such as for transmission or reception via an air interface) and a digital signal (such as for processing by one or more processors of the network node 110) . In some aspects, the RF chain may be or may be included in a transceiver of the network node 110.
[0087] In some aspects, the network node 110 may use the communication unit 244 to communicate with a core network and / or with other network nodes. The communication unit 244 may support wired and / or wireless communication protocols and / or connections, such as Ethernet, optical fiber, common public radio interface (CPRI) , and / or a wired or wireless backhaul. The network node 110 may use the communication unit 244 to transmit and / or receive data associated with the UE 120 or to perform network control signaling. The communication unit 244 may include a transceiver and / or an interface, such as a network interface.
[0088] The UE 120 may include a set of antennas 252 (shown as antennas 252a through 252r, where r ≥ 1) , a set of modems 254 (shown as modems 254a through 254u, where u ≥ 1) , a MIMO detector 256, a receive processor 258, a data sink 260, a data source 262, a transmit processor 264, a TX MIMO processor 266, a controller / processor 280, a memory 282, and / or a communication manager 140. One or more of the components of the UE 120 may be included in a housing 284. In some aspects, one or a combination of the antenna (s) 252, the modem (s) 254, the MIMO detector 256, the receive processor 258, the transmit processor 264, or the TX MIMO processor 266 may be included in a transceiver that is included in the UE 120. The transceiver may be under control of and used by one or more processors, such as the controller / processor 280, and in some aspects in conjunction with processor-readable code stored in the memory 282, to perform aspects of the methods, processes, or operations described herein. In some aspects, the UE 120 may include another interface, another communication component, and / or another component that facilitates communication with the network node 110 and / or another UE 120.
[0089] For downlink communication from the network node 110 to the UE 120, the set of antennas 252 may receive the downlink communications or signals from the network node 110 and may provide a set of received downlink signals (e.g., R received signals) to the set of modems 254. In some aspects, each received signal may be provided to a respective demodulator component (shown as DEMOD) of a modem 254. Each modem 254 may use the respective demodulator component to condition (e.g., filter, amplify, downconvert, and / or digitize) a received signal to obtain input samples. Each modem 254 may use the respective demodulator component to further demodulate or process the input samples (e.g., for OFDM) to obtain received symbols. The MIMO detector 256 may obtain received symbols from the set of modems 254, may perform MIMO detection on the received symbols if applicable, and may provide detected symbols. The receive processor 258 may process (e.g., decode) the detected symbols, may provide decoded data for the UE 120 to the data sink 260 (which may include a data pipeline, a data queue, and / or an application executed on the UE 120) , and may provide decoded control information and system information to the controller / processor 280.
[0090] For uplink communication from the UE 120 to the network node 110, the transmit processor 264 may receive and process data ( “uplink data” ) from a data source 262 (such as a data pipeline, a data queue, and / or an application executed on the UE 120) and control information from the controller / processor 280. The control information may include one or more parameters, feedback, one or more signal measurements, and / or other types of control information. In some aspects, the receive processor 258 and / or the controller / processor 280 may determine, for a received signal (such as received from the network node 110 or another UE) , one or more parameters relating to transmission of the uplink communication. The one or more parameters may include a reference signal received power (RSRP) parameter, a received signal strength indicator (RSSI) parameter, a reference signal received quality (RSRQ) parameter, a channel quality indicator (CQI) parameter, or a transmit power control (TPC) parameter. The control information may include an indication of the RSRP parameter, the RSSI parameter, the RSRQ parameter, the CQI parameter, the TPC parameter, and / or another parameter. The control information may facilitate parameter selection and / or scheduling for the UE 120 by the network node 110.
[0091] The transmit processor 264 may generate reference symbols for one or more reference signals, such as an uplink DMRS, an uplink sounding reference signal (SRS) , and / or another type of reference signal. The symbols from the transmit processor 264 may be precoded by the TX MIMO processor 266, if applicable, and further processed by the set of modems 254 (e.g., for DFT-s-OFDM or CP-OFDM) . The TX MIMO processor 266 may perform spatial processing (e.g., precoding) on the data symbols, the control symbols, the overhead symbols, and / or the reference symbols, if applicable, and may provide a set of output symbol streams (e.g., U output symbol streams) to the set of modems 254. In some aspects, each output symbol stream may be provided to a respective modulator component (shown as MOD) of a modem 254. Each modem 254 may use the respective modulator component to process (e.g., to modulate) a respective output symbol stream (e.g., for OFDM) to obtain an output sample stream. Each modem 254 may further use the respective modulator component to process (e.g., convert to analog, amplify, filter, and / or upconvert) the output sample stream to obtain an uplink signal.
[0092] The modems 254a through 254u may transmit a set of uplink signals (e.g., R uplink signals or U uplink symbols) via the corresponding set of antennas 252. An uplink signal may include a UCI communication, a MAC CE communication, an RRC communication, or another type of uplink communication. Uplink signals may be transmitted on a PUSCH, a PUCCH, and / or another type of uplink channel. An uplink signal may carry one or more TBs of data. Sidelink data and control transmissions (that is, transmissions directly between two or more UEs 120) may generally use similar techniques as were described for uplink data and control transmission, and may use sidelink-specific channels such as a physical sidelink shared channel (PSSCH) , a physical sidelink control channel (PSCCH) , and / or a physical sidelink feedback channel (PSFCH) .
[0093] One or more antennas of the set of antennas 252 or the set of antennas 234 may include, or may be included within, one or more antenna panels, one or more antenna groups, one or more sets of antenna elements, or one or more antenna arrays. An antenna panel, an antenna group, a set of antenna elements, or an antenna array may include one or more antenna elements (within a single housing or multiple housings) , a set of coplanar antenna elements, a set of non-coplanar antenna elements, or one or more antenna elements coupled with one or more transmission or reception components, such as one or more components of Fig. 2. As used herein, “antenna” can refer to one or more antennas, one or more antenna panels, one or more antenna groups, one or more sets of antenna elements, or one or more antenna arrays. “Antenna panel” can refer to a group of antennas (such as antenna elements) arranged in an array or panel, which may facilitate beamforming by manipulating parameters of the group of antennas. “Antenna module” may refer to circuitry including one or more antennas, which may also include one or more other components (such as filters, amplifiers, or processors) associated with integrating the antenna module into a wireless communication device.
[0094] In some aspects, each of the antenna elements of an antenna 234 or an antenna 252 may include one or more sub-elements for radiating or receiving radio frequency signals. In some aspects, a single antenna element may include a first sub-element cross-polarized with a second sub-element that can be used to independently transmit cross-polarized signals. The antenna elements may include patch antennas, dipole antennas, and / or other types of antennas arranged in a linear pattern, a two-dimensional pattern, or another pattern. A spacing between antenna elements may be such that signals with a desired wavelength transmitted separately by the antenna elements may interact or interfere constructively and destructively along various directions (such as to form a desired beam) . In some aspects, given an expected range of wavelengths or frequencies, the spacing may provide a quarter wavelength, a half wavelength, or another fraction of a wavelength of spacing between neighboring antenna elements to allow for the desired constructive and destructive interference patterns of signals transmitted by the separate antenna elements within that expected range.
[0095] The amplitudes and / or phases of signals transmitted via antenna elements and / or sub-elements may be modulated and shifted relative to each other (such as by manipulating phase shift, phase offset, and / or amplitude) to generate one or more beams, which is referred to as beamforming. The term “beam” may refer to a directional transmission of a wireless signal toward a receiving device or otherwise in a desired direction. “Beam” may also generally refer to a direction associated with such a directional signal transmission, a set of directional resources associated with the signal transmission (e.g., an angle of arrival, a horizontal direction, and / or a vertical direction) , and / or a set of parameters that indicate one or more aspects of a directional signal, a direction associated with the signal, and / or a set of directional resources associated with the signal. In some implementations, antenna elements may be individually selected or deselected for directional transmission of a signal (or signals) by controlling amplitudes of one or more corresponding amplifiers and / or phases of the signal (s) to form one or more beams. The shape of a beam (such as the amplitude, width, and / or presence of side lobes) and / or the direction of a beam (such as an angle of the beam relative to a surface of an antenna array) can be dynamically controlled by modifying the phase shifts, phase offsets, and / or amplitudes of the multiple signals relative to each other.
[0096] Different UEs 120 or network nodes 110 may include different numbers of antenna elements. In some aspects, a UE 120 may include a single antenna element, two antenna elements, four antenna elements, eight antenna elements, or a different number of antenna elements. As another aspect, a network node 110 may include eight antenna elements, 24 antenna elements, 64 antenna elements, 128 antenna elements, or a different number of antenna elements. Generally, a larger number of antenna elements may provide increased control over parameters for beam generation relative to a smaller number of antenna elements, whereas a smaller number of antenna elements may be less complex to implement and may use less power than a larger number of antenna elements. Multiple antenna elements may support multiple-layer transmission, in which a first layer of a communication (which may include a first data stream) and a second layer of a communication (which may include a second data stream) are transmitted using the same time and frequency resources with spatial multiplexing.
[0097] While blocks in Fig. 2 are illustrated as distinct components, the functions described above with respect to the blocks may be implemented in a single hardware, software, or combination component or in various combinations of components. In some aspects, the functions described with respect to the transmit processor 264, the receive processor 258, and / or the TX MIMO processor 266 may be performed by or under the control of the controller / processor 280.
[0098] Fig. 3 is a diagram illustrating, in some aspects, disaggregated base station architecture 300 in accordance with the present disclosure. One or more components of the disaggregated base station architecture 300 may be, may include, or may be included in one or more network nodes (such one or more network nodes 110) . The disaggregated base station architecture 300 may include a CU 310 that can communicate directly with a core network 320 via a backhaul link, or that can communicate indirectly with the core network 320 via one or more disaggregated control units, such as a Non-RT RIC 350 associated with a Service Management and Orchestration (SMO) Framework 360 and / or a Near-RT RIC 370 (e.g., via an E2 link) . The CU 310 may communicate with one or more DUs 330 via respective midhaul links, such as via F1 interfaces. Each of the DUs 330 may communicate with one or more RUs 340 via respective fronthaul links. Each of the RUs 340 may communicate with one or more UEs 120 via respective RF access links. In some deployments, a UE 120 may be simultaneously served by multiple RUs 340.
[0099] Each of the components of the disaggregated base station architecture 300, including the CUs 310, the DUs 330, the RUs 340, the Near-RT RICs 370, the Non-RT RICs 350, and the SMO Framework 360, may include one or more interfaces or may be coupled with one or more interfaces for receiving or transmitting signals, such as data or information, via a wired or wireless transmission medium.
[0100] In some aspects, the CU 310 may be logically split into one or more CU user plane (CU-UP) units and one or more CU control plane (CU-CP) units. A CU-UP unit may communicate bidirectionally with a CU-CP unit via an interface, such as the E1 interface when implemented in an O-RAN configuration. The CU 310 may be deployed to communicate with one or more DUs 330, as necessary, for network control and signaling. Each DU 330 may correspond to a logical unit that includes one or more base station functions to control the operation of one or more RUs 340. In some aspects, a DU 330 may host various layers, such as an RLC layer, a MAC layer, or one or more PHY layers, such as one or more high PHY layers or one or more low PHY layers. Each layer (which also may be referred to as a module) may be implemented with an interface for communicating signals with other layers (and modules) hosted by the DU 330, or for communicating signals with the control functions hosted by the CU 310. Each RU 340 may implement lower layer functionality. In some aspects, real-time and non-real-time aspects of control and user plane communication with the RU (s) 340 may be controlled by the corresponding DU 330.
[0101] The SMO Framework 360 may support RAN deployment and provisioning of non-virtualized and virtualized network elements. For non-virtualized network elements, the SMO Framework 360 may support the deployment of dedicated physical resources for RAN coverage requirements, which may be managed via an operations and maintenance interface, such as an O1 interface. For virtualized network elements, the SMO Framework 360 may interact with a cloud computing platform (such as an open cloud (O-Cloud) platform 390) to perform network element life cycle management (such as to instantiate virtualized network elements) via a cloud computing platform interface, such as an O2 interface. A virtualized network element may include, but is not limited to, a CU 310, a DU 330, an RU 340, a non-RT RIC 350, and / or a Near-RT RIC 370. In some aspects, the SMO Framework 360 may communicate with a hardware aspect of a 4G RAN, a 5G NR RAN, and / or a 6G RAN, such as an open eNB (O-eNB) 380, via an O1 interface. Additionally or alternatively, the SMO Framework 360 may communicate directly with each of one or more RUs 340 via a respective O1 interface. In some deployments, this configuration can enable each DU 330 and the CU 310 to be implemented in a cloud-based RAN architecture, such as a vRAN architecture.
[0102] The Non-RT RIC 350 may include or may implement a logical function that enables non-real-time control and optimization of RAN elements and resources, artificial intelligence and / or machine learning (AI / ML) workflows including model training and updates, and / or policy-based guidance of applications and / or features in the Near-RT RIC 370. The Non-RT RIC 350 may be coupled to or may communicate with (such as via an A1 interface) the Near-RT RIC 370. The Near-RT RIC 370 may include or may implement a logical function that enables near-real-time control and optimization of RAN elements and resources via data collection and actions via an interface (such as via an E2 interface) connecting one or more CUs 310, one or more DUs 330, and / or an O-eNB with the Near-RT RIC 370.
[0103] In some aspects, to generate AI / ML models to be deployed in the Near-RT RIC 370, the Non-RT RIC 350 may receive parameters or external enrichment information from external servers. Such information may be utilized by the Near-RT RIC 370 and may be received at the SMO Framework 360 or the Non-RT RIC 350 from non-network data sources or from network functions. In some aspects, the Non-RT RIC 350 or the Near-RT RIC 370 may tune RAN behavior or performance. In some aspects, the Non-RT RIC 350 may monitor long-term trends and patterns for performance and may employ AI / ML models to perform corrective actions via the SMO Framework 360 (such as reconfiguration via an O1 interface) or via creation of RAN management policies (such as A1 interface policies) .
[0104] As indicated above, Fig. 3 is provided as an aspect. Other aspects may differ from what is described with regard to Fig. 3.
[0105] The network node 110, the controller / processor 240 of the network node 110, the UE 120, the controller / processor 280 of the UE 120, the CU 310, the DU 330, the RU 340, or any other component (s) of Figs. 1, 2, or 3 may implement one or more techniques or perform one or more operations associated with monitoring for a control signal at an A-IoT device, as described in more detail elsewhere herein. In some aspects, the controller / processor 240 of the network node 110, the controller / processor 280 of the UE 120, any other component (s) of Fig. 2, the CU 310, the DU 330, or the RU 340 may perform or direct operations of, in some aspects, process 1000 of Fig. 10, process 1100 of Fig. 11, process 1200 of Fig. 12, process 1300 of Fig. 13, or other processes as described herein (alone or in conjunction with one or more other processors) . In some aspects, the wireless device (e.g., A-IoT device) described herein is the UE 120 without a power source, is included in the UE 120, or includes one or more components of the UE 120 shown in Fig. 2. In some aspects, the transmitting device described herein is the network node 110 or the UE 120, is included in the network node 110 or the UE 120, or includes one or more components of the network node 110 or the UE 120 shown in Fig. 2. The memory 242 may store data and program codes for the network node 110, the network node 110, the CU 310, the DU 330, or the RU 340. The memory 282 may store data and program codes for the UE 120. In some aspects, the memory 242 or the memory 282 may include a non-transitory computer-readable medium storing a set of instructions (in some aspects, code or program code) for wireless communication. The memory 242 may include one or more memories, such as a single memory or multiple different memories (of the same type or of different types) . The memory 282 may include one or more memories, such as a single memory or multiple different memories (of the same type or of different types) . In some aspects, the set of instructions, when executed (e.g., directly, or after compiling, converting, or interpreting) by one or more processors of the network node 110, the UE 120, the CU 310, the DU 330, or the RU 340, may cause the one or more processors to perform process 1000 of Fig. 10, process 1100 of Fig. 11, process 1200 of Fig. 12, process 1300 of Fig. 13, or other processes as described herein. In some aspects, executing instructions may include running the instructions, converting the instructions, compiling the instructions, and / or interpreting the instructions.
[0106] In some aspects, a wireless device (e.g., a UE 120 without a power source, an A-IoT device) includes means for receiving a monitoring occasion configuration that is associated with a device capability; and / or means for monitoring for a control signal in a monitoring occasion in accordance with the monitoring occasion configuration.
[0107] In some aspects, the wireless device includes means for receiving a query signal; means for transmitting a device ID of the wireless device; means for receiving feedback with the device ID; and / or means for receiving a control signal that uses the device ID. In some aspects, the means for the wireless device to perform operations described herein may include, in some aspects, one or more of communication manager 140, antenna 252, modem 254, receive processor 258, transmit processor 264, controller / processor 280, or memory 282.
[0108] In some aspects, a transmitting device (e.g., a network node 110, a UE 120) includes means for transmitting a monitoring occasion configuration in accordance with an indicated device capability; and / or means for transmitting a control signal in a monitoring occasion in accordance with the monitoring occasion configuration.
[0109] In some aspects, the transmitting device includes means for transmitting a query signal; means for receiving a device ID of an ambient internet of things (IoT) device; means for transmitting feedback with the device ID; and / or means for transmitting a control signal using the device ID. In some aspects, the means for the transmitting device to perform operations described herein may include, in some aspects, one or more of communication manager 150, transmit processor 220, TX MIMO processor 230, modem 232, antenna 234, MIMO detector 236, receive processor 238, controller / processor 240, memory 242, or scheduler 246. In some aspects, the means for the transmitting device to perform operations described herein may include, in some aspects, one or more of communication manager 140, antenna 252, modem 254, MIMO detector 256, receive processor 258, transmit processor 264, TX MIMO processor 266, controller / processor 280, or memory 282.
[0110] Fig. 4 is a diagram illustrating an aspect 400 of energy harvesting, in accordance with the present disclosure.
[0111] Energy harvesting includes a device obtaining energy from a source other than an on-device battery. This may include obtaining energy from a source outside of the device. Devices that use energy harvesting may have a small energy storage device or battery (e.g., smart watch, RedCap devices, eRedCap devices) or no energy storage device or battery (e.g., zero-power devices, IoT devices, wearables, or financial devices) . Such devices may be categorized based on energy storage capacities. Some devices may have no energy storage (storage capacity 1) . Some devices may store up to E1 Joules (storage capacity 2) . Some devices may store up to E2 Joules (storage capacity 3) .
[0112] Energy harvesting may include converting RF energy transferred from another device. The harvesting of RF energy may not fully charge a battery but may be used for some tasks like data decoding, operating some filters, data reception, data encoding, data reception, and / or data transmission. The energy may be accumulated over time. Energy harvesting may also be a part of self-sustainable networks, where a node in the network can interact in the network through the energy harvested in the network through transmissions.
[0113] As shown in Fig. 4, an RF receiver (e.g., a UE 120) may receive signals (e.g., radio signals carried on radio waves) from an RF transmitter (e.g., a network node 110 or UE 120) and convert electromagnetic energy of the signals (e.g., using a rectenna comprising a dipole antenna with an RF diode) into direct current electricity for use by the RF receiver. The RF receiver may be a low-power device or a zero-power device. The RF transmitter may be referred to as a “charging device. ”
[0114] As shown by reference number 405, in some aspects, the RF receiver may use a separated receiver architecture, where a first set of antennas is configured to harvest energy (e.g., using energy harvester 406) , and a second set of antennas is configured to receive data (e.g., using information receiver 408) . In this scenario, each set of antennas may be separately configured to receive signals at certain times, frequencies, and / or via one or more particular beams, such that all signals received by the first set of antennas are harvested for energy, and all signals received by the second set of antennas are processed to receive information.
[0115] As shown by reference number 410, in some aspects, the RF receiver may use a time-switching architecture (e.g., with time switcher 412) to harvest energy. The time switching architecture may use one or more antennas to receive signals, and whether the signals are harvested for energy or processed to receive information depends on the time at which the signals are received. In some aspects, one or more first time slots may be time slots during which received signals are sent to one or more energy harvesting components, such as energy harvester 406, to harvest energy, and one or more second time slots may be time slots during which received signals are processed and decoded by one or more information receivers 408 to receive information. In some aspects, the time slots may be pre-configured (e.g., by the RF receiver, the RF transmitter, or another device) .
[0116] As shown by reference number 415, in some aspects, the RF receiver may use a power splitting architecture (e.g., with power splitter 416) to harvest energy. The power splitting architecture may use one or more antennas to receive signals, and the signals are handled by one or both of the energy harvesting and / or information receiving components according to an energy harvesting rate. In some aspects, the RF receiver may be configured to use a first portion of received signals for energy harvesting and the remaining received signals for information receiving. The energy harvesting mode for a device may be semi-statistically configured by RRC messaging. In some aspects, the energy harvesting rate may be pre-configured (e.g., by the RF receiver, the RF transmitter, or another device) . Communications with a network entity may be required, even in the energy harvesting mode, but with a reduced radio capability to reduce power consumption.
[0117] The RF receiver may receive signals for energy harvesting on certain resources (e.g., time, frequency, and / or spatial resources) and at a certain power level that results in a particular charging rate. Energy harvested by the RF receiver may be used and / or stored for later use. In some aspects, in some aspects, the RF receiver may be powered directly by the harvested energy. In some aspects, the RF receiver may use an energy storage device, such as a battery, capacitor, and / or supercapacitor, to gather and store harvested energy for immediate and / or later use.
[0118] The energy harvesting device may have a low-power or wake-up radio that is configured to detect a low-power wake up signal (WUS) but not perform other communications. The energy harvesting device may have a main radio that is configured to perform communications and that consumes more power than the low-power radio or wake-up radio. The energy harvesting device may have limited RF capabilities (less than enhanced UE) or full RF capabilities (comparable to enhanced UE) .
[0119] Energy harvesting devices, more generally, may rely equally or differently on different energy harvesting techniques such as solar power, vibration, thermal energy, or RF energy harvesting. Energy harvesting can be predictable or unpredictable due to the energy being intermittently available. Current communications use fixed activity cycles for transmission and reception, such as an on duration of an active discontinuous reception (DRX) cycle. The active DRX cycle may include a part of the DRX cycle when a DRX on-duration timer (for a time that the UE is monitoring for PDCCH communications) or a DRX inactivity timer (time UE is active after successfully decoding a PDCCH communication) is running. A timer may run once it is started, until it is stopped or until it expires; otherwise, it is not running. A timer may start if it is not running or restarted if it is running. A timer may be started or restarted from its initial value.
[0120] As indicated above, Fig. 4 is provided as an aspect. Other aspects may differ from what is described with regard to Fig. 4.
[0121] Fig. 5 is a diagram illustrating an aspect 500 of backscatter communication, in accordance with the present disclosure.
[0122] Energy harvesting (EH) devices may include A-IoT devices (e.g., RFID tags) that rely on passive communication technologies, such as backscatter communication. An A-IoT may also be referred to as an “ambient IoT, ” “passive UE, ” “ambient backscatter device, ” or “backscatter device. ” Backscatter communication involves using an RF signal to write or transmit data without a battery or a power source. A transmitter / reader 502 may be an RF source that transmits a continuous wave (CW) signal (radio wave denoted as x (n) ) that may be received by multiple devices, such as a reader 504. A wireless device, such as passive UE 506 (e.g., a tag, an ambient IoT device, a passive UE, a UE 120 without energy source, a backscattering device) , may harvest energy (e.g., tens or hundreds of microwatts of electricity) from the signal. The passive UE 506 may use passive reflection and modulation of the signal to transmit a backscatter signal using the harvested energy. That is, the passive UE 506 may modulate the signal to encode data and then reflect a fraction of the wave to the reader 504 or to the transmitter / reader 502. The backscatter signal may be encoded with information bits (e.g., identifying information, sensor information) of the passive UE 506. The reader 504 may receive the backscatter signal and read the information bits. In some scenarios, the passive UE 506 may use information commands (e.g., write, transmit) or bits (e.g., data, configuration, indications) modulated in a received data or control signal to write commands or bits to the passive UE 506 itself.
[0123] In aspect 500, D1 is for the transmitter / reader 502, D2 is for the reader 504, and T is for the passive UE 506 for transmitted signal h. As shown by reference number 508, a CW signal may be represented by hD1D2 (n) . One modulation method for backscattering includes amplitude shift keying (ASK) , which switches on the reflection when transmitting information bit “1” and switches off the reflection when transmitting information bit “0” . Reference number 510 shows information bits by a backscattering device, represented as σfhD1T (n) hTD2 (n) s (n) ) . If the information bits of a backscattering device are s (n) ∈ {0, 1} , the received signal at the reader 504 may be y (n) = (hD1D2 (n) +σfhD1T (n) hTD2 (n) s (n) ) x (n) +noise, as shown by reference number 512. When s (n) =0, reflection is switched off at the passive UE 506 such that the reader 504 only receives a direct link signal (y (n) =hD1D2 (n) x (n) +noise) . When s (n) =1, reflection is switched on at the passive UE 506 such that the reader 504 receives the superposition of both the direct link signal and the backscatter, which is represented as y (n) = (hD1D2 (n) +σfhD1T (n) hTD2 (n) s (n) ) x (n) +noise, where σf denotes the reflection coefficient. The modulated wave from the passive UE 506 may involve ASK or frequency-shift keying (FSK) .
[0124] To receive the transmitted information bits by the passive UE 506, the reader 504 may first decode x (n) based on the known hD1D2 (n) , by treating the backscatter link signal as interference. The reader 504 may then detect the existence of the term σfhD1T (n) hTD2 (n) s (n) x (n) by subtracting hD1D2 (n) x (n) from y (n) .
[0125] There is a tradeoff between harvested energy at the passive UE 506 and a received signal-to-noise ratio (SNR) at a reader (e.g., the reader 504) . The harvested energy at the passive UE 506 is a function of a first channel (forwarding link (FL) ) between the transmitter / reader 502 and the passive UE 506, and the SNR at the reader 504 is a function of both the first channel and a second channel (backscattering link (BL) ) between the passive UE 506 and the reader 504. Due to the difference between the first channel and the second channel and the energy harvester nonlinearity, the optimal transmit waveform design for SNR and the optimal transmit waveform design for energy maximization are different.
[0126] A topology may be monostatic, where the RF source and the reader are the same device. A topology may be bistatic, where the RF source and the reader are different devices, such as shown in aspect 500. While an RFID tag may have a simple structure and an envelope detector for a carrier wave from a reader, an ambient IoT (A-IoT) device may involve a topology that includes a network entity (e.g., gNB, a UE, and a tag (UE as relay) ) or a topology that includes a UE and a tag. The A-IoT tag can be more powerful and may harvest and store energy.
[0127] A-IoT devices may be categorized according to A-IoT device types. In some aspects, an A-IoT device of type A may have no energy storage and no independent signal generation (i.e., backscattering transmission) . An A-IoT device of type A may have no passive filtering capability, and thus a transmitting device may not transmit a signal to difference devices at the same time but with different frequencies. An A-IoT device of type B may have energy storage but no independent signal generation (i.e., backscattering transmission) . An A-IoT device of type A or an A-IoT device of type B may have no energy to maintain a clock (e.g., preconfiguring the monitoring occasion for a downlink signal may not work) . The use of stored energy may include amplification for reflected signals. An A-IoT device of type C may have energy storage and independent signal generation (i.e., active RF component for transmission) . An A-IoT device of type B or type C may have energy to maintain the clock, but the clock stability may be loose.
[0128] In some aspects, A-IoT devices or A-IoT device types may be placed into groups. Groups (grouping 1) may include a group for indoor devices, a group for outdoor devices, and a group for both indoor / outdoor devices. Other groups (grouping B) may include a group of inventory devices, a group of sensors, a group of positioning devices, or a group of command devices. Grouping A and grouping B may be separate or together (e.g., group first by A, and second by B) .
[0129] An A-IoT device may monitor for and receive a control signal for configuration and control purposes. The A-IoT device may monitor for the control signal in monitoring occasions. However, different A-IoT device types may have different capabilities (e.g., filtering, clock stability, energy storage) and may expect different guard interval sizes around a control signal in a monitoring occasion. If the guard interval is too small, communications may degrade. Degraded communications increases latency and wastes signaling resources. If the guard interval is too big, signaling resources are wasted.
[0130] As indicated above, Fig. 5 is provided as an aspect. Other aspects may differ from what is described with regard to Fig. 5.
[0131] Fig. 6 is a diagram illustrating aspects 600, 602, and 604 of monitoring occasion configurations, in accordance with the present disclosure.
[0132] According to various aspects described herein, an A-IoT device may be configured with a monitoring occasion that is appropriate for the A-IoT device type. In some aspects, the guard interval in a monitoring occasion may be based at least in part on an A-IoT device type of the A-IoT device. Therefore, a monitoring occasion configuration for one A-IoT device type may be different than a monitoring occasion configuration for another A-IoT device type. In some aspects, the guard interval for A-IoT device type B may be different than for A-IoT device type C because a type B A-IoT device may have a different clock stability than a type C A-IoT device. The type B A-IoT device may have looser clock stability due to lower costs and a lower energy storage capability as compared to a type C A-IoT device. By using a monitoring occasion configuration that is based at least in part on the A-IoT device type, different types of A-IoT devices may have different monitoring occasions (e.g., different guard intervals) that are appropriate for the A-IoT device types. As a result of more appropriate monitoring occasions, signaling resources are conserved and unnecessary latency is reduced.
[0133] Aspect 600 shows monitoring occasions for type C A-IoT devices (A-IoT device 620 and A-IoT device 618) and a type B A-IoT device (A-IoT device 614) . A block with solid fill in Fig. 6 is used to show an actual control signal transmission occasion. A block with a lighter pattern fill is used to show a monitoring occasion. Monitoring occasions may differ in length, guard interval, periodicity, and / or time location. Monitoring occasion 616 (for A-IoT device 614) may have a larger guard interval than monitoring occasion 612 (for A-IoT device 620) and monitoring occasion 620 (for A-IoT device 618) . In some aspects, an A-IoT device may receive a control signal with a cyclic redundancy check (control signal + CRC) .
[0134] In some aspects, control signal transmission occasions (and thus monitoring occasions) for different A-IoT devices may be time division multiplexed (TDMed) . The duration of a monitoring occasion may be longer than the duration of the corresponding control signal transmission. This is shown by aspect 600. As shown in aspect 602, the monitoring occasions may partially overlap.
[0135] In some aspects, the monitoring occasions for different A-IoT devices may be frequency division multiplexed (FDMed) . In aspect 604, A-IoT device 622 and A-IoT device 610 share monitoring occasion 612, A-IoT device 624 and A-IoT device 614 share monitoring occasion 616, and A-IoT device 626 and A-IoT device 618 share monitoring occasion 620. The monitoring occasions may be FDMed if the A-IoT devices support bandpass filtering. The guard durations of monitoring occasions may depend on the filtering capability of the A-IoT devices.
[0136] As indicated above, Fig. 6 provides some aspects. Other aspects may differ from what is described with regard to Fig. 6.
[0137] Fig. 7 is a diagram illustrating an aspect 700 associated with monitoring occasion configurations, in accordance with the present disclosure. As shown in Fig. 7, a transmitting device 710 (e.g., network node 110, UE 120, transmitter / reader 502) and an A-IoT device 720 (e.g., UE 120 without a power source, passive UE 506) may communicate with one another.
[0138] As shown by reference number 725, the transmitting device 710 may generate a monitoring occasion configuration 726 based at least in part on an A-IoT device type of the A-IoT device 720. The monitoring occasion configuration 726 may account for a device capability (e.g., energy storage capability, clock stability capability, bandpass filtering capability) of the A-IoT device 720. The transmitting device 710 may have information about the capabilities of the A-IoT device 720 from earlier configurations or from an indication from the A-IoT device 720. The transmitting device 710 may select a guard interval and / or a length of the monitoring occasions. As shown by reference number 730, the transmitting device 710 may transmit the monitoring occasion configuration 726 to the A-IoT device 720.
[0139] As shown by reference number 735, the A-IoT device 720 may monitor for a control signal in a monitoring occasion 736 according to the monitoring occasion configuration 726. As shown by reference number 740, the transmitting device 710 may transmit a control signal in the monitoring occasion 736. The A-IoT device 720 may receive the control signal in the monitoring occasion 736. Because the monitoring occasions are configured according to A-IoT device type, the A-IoT device 720 may have a high probability of receiving the control signal according to the A-IoT device type of the A-IoT device 720.
[0140] As indicated above, Fig. 7 is provided as an aspect. Other aspects may differ from what is described with respect to Fig. 7.
[0141] Fig. 8 is a diagram illustrating aspects 800, 802, 804, 806, and 808 of identifying a control signal, in accordance with the present disclosure.
[0142] Monitoring occasions for different A-IoT devices may be the same (shared or FDMed) . In some aspects, a control signal may be transmitted with other information that an A-IoT device may use to identify whether the control signal that is meant for the A-IoT device.
[0143] In some aspects, a transmitting device may transmit a control signal with a preamble, as shown by aspect 800. The preamble may be specific to an A-IoT device, an A-IoT device type, and / or an A-IoT device group. An A-IoT device may use the preamble to identify whether the control signal is for the A-IoT device. The transmitting device may also transmit a CRC with the control signal (preamble + control signal + CRC) . The CRC may be specific to an A-IoT device, an A-IoT device type, and / or an A-IoT device group. An A-IoT device may use the CRC, in addition to the preamble, to identify whether the control signal is for the A-IoT device.
[0144] In some aspects, the transmitting device may transmit a control signal with a device ID (for the A-IoT device or an A-IoT device type) and / or a group ID (for a group of A-IoT devices of an A-IoT device type) . The transmitting device may also transmit an CRC with the control signal (device ID / group ID + control signal + CRC) , as shown by aspect 802. An A-IoT device may use the device ID / group ID and / or CRC to identify whether the control signal is for the A-IoT device.
[0145] In some aspects, the transmitting device may use two CRC parts (device ID / group ID + CRC 1 + control signal + CRC 2) . The parity length of CRC 1 and CRC 2 may be different, as shown by aspect 804. The parity length of CRC 1 may be less than the parity length of CRC 2. Compared with aspect 802, the use of two CRCs may reduce the power consumption of the A-IoT device. The A-IoT device may use the shorter CRC 1 to first detect whether the A-IoT device is a target for itself before using the CRC 2.
[0146] In some aspects, the transmitting device may transmit a control signal with a CRC that is specific to the A-IoT device or the A-IoT device type of the A-IoT device. As shown by aspect 806, the transmitting device may scramble the CRC with a scrambling that is specific to the A-IoT device or the A-IoT device type of the A-IoT device and / or a group associated with the A-IoT device type of the A-IoT device (control signal + specified CRC) . The A-IoT device may identify whether the control signal is for the A-IoT device by the scrambling that is used for the CRC.
[0147] In some aspects, as shown by aspect 808, the transmitting device may transmit a control signal that is scrambled according to a specific A-IoT device type and / or group of A-IoT devices. The A-IoT device may identify whether the control signal is for the A-IoT device by the scrambling used for the control signal.
[0148] When it comes to a device-specific (or device-type-specific) CRC or a group-specific CRC, the length of the CRC may be compared to the length of a device ID for the A-IoT device. If the length of the CRC is less than the length of the device ID or if a truncated device ID is used to scramble the CRC, the power consumption may be reduced. The transmitting device may predefine a rule for a truncated device ID, such as using the N most significant bits (MSB) or the N least significant bits (LSB) of the device ID. The transmitting device may use a hash of the device ID.
[0149] If the length of the CRC is greater than or equal to the length of the device ID, this may increase the power consumption of the A-IoT device, but the CRC may be more robust than when the length of the CRC is less than the length of the device ID.
[0150] In some aspects, the whole device ID or group ID may be used for the CRC or the control signal scrambling. In some aspects, a short device ID or a short group ID may be used. A short ID may be a truncated ID or a hash of the actual ID. If the number of the A-IoT devices is large, there may be multiple A-IoT devices that have the same or a similar short ID (i.e., only a few bits are different) . To avoid confusion, the transmitting device may avoid configuring the same monitoring occasion for the A-IoT devices that share the same or similar short ID. The transmitting device may further consider the clock stability of the A-IoT device. The transmitting device may avoid configuring the N adjacent monitoring occasions for the A-IoT devices that share the same or similar short device / group ID. The value of N may depend on the clock stability of the A-IoT device and the duration of the monitoring occasion.
[0151] As indicated above, Fig. 8 is provided as an aspect. Other aspects may differ from what is described with regard to Fig. 8.
[0152] Fig. 9 is a diagram illustrating an aspect 900 associated with receiving a control signal, in accordance with the present disclosure. As shown in Fig. 9, a transmitting device 910 (e.g., network node 110, UE 120, transmitter / reader 502) and an A-IoT device 920 (e.g., UE 120 without a power source, passive UE 506) may communicate with one another.
[0153] In some aspects, if the control signal is for a type A A-IoT device, the transmitting device may not preconfigure the control signal monitoring occasions. The type A A-IoT device may not have enough energy to monitor for a control signal. The type A A-IoT device may have to determine whether the control signal is for the A-IoT device quickly.
[0154] In some aspects, the A-IoT device 920 may use a Q-based response, where the transmitting device 910 transmits a query signal (as shown by reference number 925) and the A-IoT device 920 may transmit its device ID (as shown by reference number 930) when Q = 0. The query signal may indicate the value of the Q, and an A-IoT device may preload a value between 0 and 2Q–1 into its slot counter. Only the A-IoT device that selects Q where (2Q–1 = 0) may respond.
[0155] If the A-IoT device 920 is the target device of the transmitting device 910, the transmitting device 910 may acknowledge (e.g., provide an acknowledgement (ACK) ) to the A-IoT device 920 (with the device ID) , as shown by reference number 935, and transmit a control signal to the A-IoT device 920, as shown by reference number 940. The device ID may be a short ID, as explained in connection with Fig. 8 for type B and type C A-IoT devices. The transmitting device 910 may preconfigure the duration between the ACK and the control signal. The use of the query signal may allow the A-IoT device 920 to not have to maintain a connected status with the transmitting device 910.
[0156] In some aspects, a transmitting device 910 may transmit a control signal with a preamble, as describe in connection with aspect 800. The preamble may be specific to the A-IoT device 920, an A-IoT device type, and / or an A-IoT device group. In some aspects, the transmitting device may use two CRC parts (device ID / group ID + CRC 1 + control signal + CRC 2) , as described in connection with aspect 804.
[0157] As indicated above, Fig. 9 is provided as an aspect. Other aspects may differ from what is described with respect to Fig. 9.
[0158] Fig. 10 is a diagram illustrating an aspect process 1000 performed, in some aspects, at a wireless device or an apparatus of a wireless device, in accordance with the present disclosure. Process 1000 is an aspect where the apparatus or the wireless device (e.g., A-IoT device 720) performs operations associated with monitoring for a control signal for an A-IoT device type.
[0159] As shown in Fig. 10, in some aspects, process 1000 may include receiving a monitoring occasion configuration that is associated with a device capability (block 1010) . In some aspects, the wireless device (e.g., using reception component 1402 and / or communication manager 1406, depicted in Fig. 14) may receive a monitoring occasion configuration that is associated with a device capability, as described above.
[0160] As further shown in Fig. 10, in some aspects, process 1000 may include monitoring for a control signal in a monitoring occasion in accordance with the monitoring occasion configuration (block 1020) . In some aspects, the wireless device (e.g., using communication manager 1406, depicted in Fig. 14) may monitor for a control signal in a monitoring occasion in accordance with the monitoring occasion configuration, as described above.
[0161] Process 1000 may include additional aspects, such as any single aspect or any combination of aspects described below and / or in connection with one or more other processes described elsewhere herein.
[0162] In a first aspect, process 1000 includes receiving the control signal in the monitoring occasion in connection with monitoring for the control signal.
[0163] In a second aspect, alone or in combination with the first aspect, the device capability is associated with clock stability.
[0164] In a third aspect, alone or in combination with one or more of the first and second aspects, the device capability includes a filtering capability.
[0165] In a fourth aspect, alone or in combination with one or more of the first through third aspects, the device capability is associated with a guard interval for a monitoring occasion.
[0166] In a fifth aspect, alone or in combination with one or more of the first through fourth aspects, the device capability is associated with an A-IoT device type.
[0167] In a sixth aspect, alone or in combination with one or more of the first through fifth aspects, the monitoring occasion configuration indicates that monitoring occasions for different devices are TDMed and are to overlap.
[0168] In a seventh aspect, alone or in combination with one or more of the first through sixth aspects, the monitoring occasion configuration indicates that monitoring occasions for different devices are FDMed.
[0169] In an eighth aspect, alone or in combination with one or more of the first through seventh aspects, monitoring for the control signal includes monitoring for the control signal with a CRC that is specific to a device type of the wireless device or a group of the wireless device.
[0170] In a ninth aspect, alone or in combination with one or more of the first through eighth aspects, a length of the CRC is less than a length of a device ID of the wireless device.
[0171] In a tenth aspect, alone or in combination with one or more of the first through ninth aspects, the CRC is scrambled with a truncated version of the device ID or a hash of the device ID.
[0172] In an eleventh aspect, alone or in combination with one or more of the first through tenth aspects, a length of the CRC is greater than or equal to a length of a device ID of the wireless device.
[0173] In a twelfth aspect, alone or in combination with one or more of the first through eleventh aspects, monitoring for the control signal includes monitoring for the control signal with a preamble that is specific to a device type of the wireless device or a group of the wireless device and a CRC that is specific to the device type of the wireless device or the group of the wireless device.
[0174] In a thirteenth aspect, alone or in combination with one or more of the first through twelfth aspects, monitoring for the control signal includes monitoring for the control signal with a device ID or a group ID of the wireless device.
[0175] In a fourteenth aspect, alone or in combination with one or more of the first through thirteenth aspects, monitoring for the control signal includes monitoring for the control signal with a CRC that is specific to a device type of the wireless device or a group of the wireless device.
[0176] In a fifteenth aspect, alone or in combination with one or more of the first through fourteenth aspects, monitoring for the control signal includes monitoring for the control signal with a first CRC and a second CRC, and the first CRC has a parity length that is less than a parity length of the second CRC.
[0177] In a sixteenth aspect, alone or in combination with one or more of the first through fifteenth aspects, the device ID is a truncated device ID or a hash of the device ID.
[0178] In a seventeenth aspect, alone or in combination with one or more of the first through sixteenth aspects, monitoring for the control signal includes monitoring for the control signal with a scrambling sequence that is specific to a device type of the wireless device or a group of the wireless device.
[0179] Although Fig. 10 shows blocks of process 1000, in some aspects, process 1000 may include additional blocks, fewer blocks, different blocks, or differently arranged blocks than those depicted in Fig. 10. Additionally, or alternatively, two or more of the blocks of process 1000 may be performed in parallel.
[0180] Fig. 11 is a diagram illustrating a process 1100 performed, in some aspects, at a transmitting device or an apparatus of a transmitting device, in accordance with the present disclosure. Process 1100 is an aspect where the apparatus or the transmitting device (e.g., transmitting device 710) performs operations associated with transmitting a control signal for an A-IoT device type.
[0181] As shown in Fig. 11, in some aspects, process 1100 may include transmitting a monitoring occasion configuration in accordance with an indicated device capability (block 1110) . In some aspects, the transmitting device (e.g., using transmission component 1404 or 1504 and / or communication manager 1406 or 1506, depicted in Fig. 14 or 15) may transmit a monitoring occasion configuration in accordance with an indicated device capability, as described above.
[0182] As further shown in Fig. 11, in some aspects, process 1100 may include transmitting a control signal in a monitoring occasion in accordance with the monitoring occasion configuration (block 1120) . In some aspects, the transmitting device (e.g., using transmission component 1404 or 1504 and / or communication manager 1406 or 1506, depicted in Fig. 14 or 15) may transmit a control signal in a monitoring occasion in accordance with the monitoring occasion configuration, as described above.
[0183] Process 1100 may include additional aspects, such as any single aspect or any combination of aspects described below and / or in connection with one or more other processes described elsewhere herein.
[0184] In a first aspect, the monitoring occasion configuration is for a first device type that has a different clock stability than a second device type.
[0185] In a second aspect, alone or in combination with the first aspect, the monitoring occasion configuration is for a first device type that has a different filtering capability than a second device type.
[0186] In a third aspect, alone or in combination with one or more of the first and second aspects, the monitoring occasion configuration specifies a guard interval for a monitoring occasion for a first device type that is different than a guard interval for a monitoring occasion for a second device type.
[0187] Although Fig. 11 shows blocks of process 1100, in some aspects, process 1100 may include additional blocks, fewer blocks, different blocks, or differently arranged blocks than those depicted in Fig. 11. Additionally, or alternatively, two or more of the blocks of process 1100 may be performed in parallel.
[0188] Fig. 12 is a diagram illustrating a process 1200 performed, in some aspects, at a wireless device or an apparatus of a wireless device, in accordance with the present disclosure. Process 1200 is an aspect where the apparatus or the wireless device (e.g., A-IoT device 920) performs operations associated with receiving a control signal for an A-IoT device type.
[0189] As shown in Fig. 12, in some aspects, process 1200 may include receiving a query signal (block 1210) . In some aspects, the wireless device (e.g., using reception component 1402 and / or communication manager 1406, depicted in Fig. 14) may receive a query signal, as described above.
[0190] As further shown in Fig. 12, in some aspects, process 1200 may include transmitting a device ID of the wireless device (block 1220) . In some aspects, the wireless device (e.g., using transmission component 1404 and / or communication manager 1406, depicted in Fig. 14) may transmit a device ID of the wireless device, as described above.
[0191] As further shown in Fig. 12, in some aspects, process 1200 may include receiving feedback with the device ID (block 1230) . In some aspects, the wireless device (e.g., using reception component 1402 and / or communication manager 1406, depicted in Fig. 14) may receive feedback with the device ID, as described above.
[0192] As further shown in Fig. 12, in some aspects, process 1200 may include receiving a control signal that uses the device ID (block 1240) . In some aspects, the wireless device (e.g., using reception component 1402 and / or communication manager 1406, depicted in Fig. 14) may receive a control signal that uses the device ID, as described above.
[0193] Process 1200 may include additional aspects, such as any single aspect or any combination of aspects described below and / or in connection with one or more other processes described elsewhere herein.
[0194] In a first aspect, receiving the control signal includes receiving the control signal with a preamble that is specific to an ambient internet of things (A-IoT) device type of the wireless device or a group of the wireless device and a cyclic redundancy check that is specific to the ambient IoT device type of the wireless device or the group of the wireless device.
[0195] In a second aspect, alone or in combination with the first aspect, receiving the control signal includes receiving the control signal with the device ID or a group ID of the wireless device.
[0196] In a third aspect, alone or in combination with one or more of the first and second aspects, receiving the control signal includes receiving the control signal with a first CRC and a second CRC, and the first CRC has a parity length that is less than a parity length of the second CRC.
[0197] Although Fig. 12 shows blocks of process 1200, in some aspects, process 1200 may include additional blocks, fewer blocks, different blocks, or differently arranged blocks than those depicted in Fig. 12. Additionally, or alternatively, two or more of the blocks of process 1200 may be performed in parallel.
[0198] Fig. 13 is a diagram illustrating a process 1300 performed, in some aspects, at a transmitting device or an apparatus of a transmitting device, in accordance with the present disclosure. Process 1300 is an aspect where the apparatus or the transmitting device (e.g., transmitting device 910) performs operations associated with transmitting a control signal for an A-IoT device type.
[0199] As shown in Fig. 13, in some aspects, process 1300 may include transmitting a query signal (block 1310) . In some aspects, the transmitting device (e.g., using transmission component 1404 or 1504 and / or communication manager 1406 or 1506, depicted in Fig. 14 or 15) may transmit a query signal, as described above.
[0200] As further shown in Fig. 13, in some aspects, process 1300 may include receiving a device ID of an A-IoT device (block 1320) . In some aspects, the transmitting device (e.g., using reception component 1402 or 1502 and / or communication manager 1406 or 1506, depicted in Fig. 14 or 15) may receive a device ID of an A-IoT device, as described above.
[0201] As further shown in Fig. 13, in some aspects, process 1300 may include transmitting feedback with the device ID (block 1330) . In some aspects, the transmitting device (e.g., using transmission component 1504 and / or communication manager 1406 or 1506, depicted in Fig. 14 or 15) may transmit feedback with the device ID, as described above.
[0202] As further shown in Fig. 13, in some aspects, process 1300 may include transmitting a control signal using the device ID (block 1340) . In some aspects, the transmitting device (e.g., using transmission component 1404 or 1504 and / or communication manager 1406 or 1506, depicted in Fig. 14 or 15) may transmit a control signal using the device ID, as described above.
[0203] Process 1300 may include additional aspects, such as any single aspect or any combination of aspects described below and / or in connection with one or more other processes described elsewhere herein.
[0204] In a first aspect, transmitting the control signal includes transmitting the control signal with a preamble that is specific to an ambient IoT device type of the ambient IoT device or a group of the ambient IoT device and a cyclic redundancy check that is specific to the ambient IoT device type of the ambient IoT device or the group of the ambient IoT device.
[0205] In a second aspect, alone or in combination with the first aspect, transmitting the control signal includes transmitting the control signal with the device ID or a group ID of the ambient IoT device.
[0206] In a third aspect, alone or in combination with one or more of the first and second aspects, transmitting the control signal includes transmitting the control signal with a first CRC and a second CRC, and the first CRC has a parity length that is less than a parity length of the second CRC.
[0207] Although Fig. 13 shows blocks of process 1300, in some aspects, process 1300 may include additional blocks, fewer blocks, different blocks, or differently arranged blocks than those depicted in Fig. 13. Additionally, or alternatively, two or more of the blocks of process 1300 may be performed in parallel.
[0208] Fig. 14 is a diagram, in some aspects, of an apparatus 1400 for wireless communication, in accordance with the present disclosure. The apparatus 1400 may be a wireless device, or a wireless device may include the apparatus 1400. In some aspects, the apparatus 1400 includes a reception component 1402, a transmission component 1404, and / or a communication manager 1406, which may be in communication with one another (in some aspects, via one or more buses and / or one or more other components) . In some aspects, the communication manager 1406 is the communication manager 140 described in connection with Fig. 1. As shown, the apparatus 1400 may communicate with another apparatus 1408, such as a UE or a network node (such as a CU, a DU, an RU, or a base station) , using the reception component 1402 and the transmission component 1404.
[0209] In some aspects, the apparatus 1400 may be configured to perform one or more operations described herein in connection with Figs. 1-9. Additionally, or alternatively, the apparatus 1400 may be configured to perform one or more processes described herein, such as process 1000 of Fig. 10, process 1100 of Fig. 11, process 1200 of Fig. 12, process 1300 of Fig. 13, or a combination thereof. In some aspects, the apparatus 1400 and / or one or more components shown in Fig. 14 may include one or more components of the wireless device described in connection with Fig. 2. Additionally, or alternatively, one or more components shown in Fig. 14 may be implemented within one or more components described in connection with Fig. 2. Additionally, or alternatively, one or more components of the set of components may be implemented at least in part as software stored in one or more memories. In some aspects, a component (or a portion of a component) may be implemented as instructions or code stored in a non-transitory computer-readable medium and executable by one or more controllers or one or more processors to perform the functions or operations of the component.
[0210] The reception component 1402 may receive communications, such as reference signals, control information, data communications, or a combination thereof, from the apparatus 1408. The reception component 1402 may provide received communications to one or more other components of the apparatus 1400. In some aspects, the reception component 1402 may perform signal processing on the received communications (such as filtering, amplification, demodulation, analog-to-digital conversion, demultiplexing, deinterleaving, de-mapping, equalization, interference cancellation, or decoding) , and may provide the processed signals to the one or more other components of the apparatus 1400. In some aspects, the reception component 1402 may include one or more antennas, one or more modems, one or more demodulators, one or more MIMO detectors, one or more receive processors, one or more controllers / processors, one or more memories, or a combination thereof, of the wireless device described in connection with Fig. 2.
[0211] The transmission component 1404 may transmit communications, such as reference signals, control information, data communications, or a combination thereof, to the apparatus 1408. In some aspects, one or more other components of the apparatus 1400 may generate communications and may provide the generated communications to the transmission component 1404 for transmission to the apparatus 1408. In some aspects, the transmission component 1404 may perform signal processing on the generated communications (such as filtering, amplification, modulation, digital-to-analog conversion, multiplexing, interleaving, mapping, or encoding) , and may transmit the processed signals to the apparatus 1408. In some aspects, the transmission component 1404 may include one or more antennas, one or more modems, one or more modulators, one or more transmit MIMO processors, one or more transmit processors, one or more controllers / processors, one or more memories, or a combination thereof, of the wireless device described in connection with Fig. 2. In some aspects, the transmission component 1404 may be co-located with the reception component 1402 in one or more transceivers.
[0212] The communication manager 1406 may support operations of the reception component 1402 and / or the transmission component 1404. In some aspects, the communication manager 1406 may receive information associated with configuring reception of communications by the reception component 1402 and / or transmission of communications by the transmission component 1404. Additionally, or alternatively, the communication manager 1406 may generate and / or provide control information to the reception component 1402 and / or the transmission component 1404 to control reception and / or transmission of communications.
[0213] In some aspects as a wireless device, the reception component 1402 may receive a monitoring occasion configuration that is associated with a device capability. The communication manager 1406 may monitor for a control signal in a monitoring occasion in accordance with the monitoring occasion configuration. The reception component 1402 may receive the control signal in the monitoring occasion in connection with monitoring for the control signal.
[0214] In some aspects as a wireless device, the reception component 1402 may receive a query signal. The transmission component 1404 may transmit a device ID of the wireless device. The reception component 1402 may receive feedback with the device ID. The reception component 1402 may receive a control signal that uses the device ID.
[0215] In some aspects as a transmitting device, the transmission component 1504 may transmit a monitoring occasion configuration in accordance with an indicated device capability. The transmission component 1504 may transmit a control signal in a monitoring occasion in accordance with the monitoring occasion configuration.
[0216] In some aspects as a transmitting device, the transmission component 1504 may transmit a query signal. The reception component 1502 may receive a device ID of an A-IoT device. The transmission component 1504 may transmit feedback with the device ID. The transmission component 1504 may transmit a control signal using the device ID.
[0217] The number and arrangement of components shown in Fig. 14 are provided as an aspect. In practice, there may be additional components, fewer components, different components, or differently arranged components than those shown in Fig. 14. Furthermore, two or more components shown in Fig. 14 may be implemented within a single component, or a single component shown in Fig. 14 may be implemented as multiple, distributed components. Additionally, or alternatively, a set of (one or more) components shown in Fig. 14 may perform one or more functions described as being performed by another set of components shown in Fig. 14.
[0218] Fig. 15 is a diagram, in some aspects, of an apparatus 1500 for wireless communication, in accordance with the present disclosure. The apparatus 1500 may be a network entity, or a network entity may include the apparatus 1500. In some aspects, the apparatus 1500 includes a reception component 1502, a transmission component 1504, and / or a communication manager 1506, which may be in communication with one another (in some aspects, via one or more buses and / or one or more other components) . In some aspects, the communication manager 1506 is the communication manager 150 described in connection with Fig. 1. As shown, the apparatus 1500 may communicate with another apparatus 1508, such as a UE or a network node (such as a CU, a DU, an RU, or a base station) , using the reception component 1502 and the transmission component 1504.
[0219] In some aspects, the apparatus 1500 may be configured to perform one or more operations described herein in connection with Figs. 1-9. Additionally, or alternatively, the apparatus 1500 may be configured to perform one or more processes described herein, such as process 1100 of Fig. 11, process 1300 of Fig. 13, or a combination thereof. In some aspects, the apparatus 1500 and / or one or more components shown in Fig. 15 may include one or more components of the network entity described in connection with Fig. 2. Additionally, or alternatively, one or more components shown in Fig. 15 may be implemented within one or more components described in connection with Fig. 2. Additionally, or alternatively, one or more components of the set of components may be implemented at least in part as software stored in one or more memories. In some aspects, a component (or a portion of a component) may be implemented as instructions or code stored in a non-transitory computer-readable medium and executable by one or more controllers or one or more processors to perform the functions or operations of the component.
[0220] The reception component 1502 may receive communications, such as reference signals, control information, data communications, or a combination thereof, from the apparatus 1508. The reception component 1502 may provide received communications to one or more other components of the apparatus 1500. In some aspects, the reception component 1502 may perform signal processing on the received communications (such as filtering, amplification, demodulation, analog-to-digital conversion, demultiplexing, deinterleaving, de-mapping, equalization, interference cancellation, or decoding) , and may provide the processed signals to the one or more other components of the apparatus 1500. In some aspects, the reception component 1502 may include one or more antennas, one or more modems, one or more demodulators, one or more MIMO detectors, one or more receive processors, one or more controllers / processors, one or more memories, or a combination thereof, of the network entity described in connection with Fig. 2.
[0221] The transmission component 1504 may transmit communications, such as reference signals, control information, data communications, or a combination thereof, to the apparatus 1508. In some aspects, one or more other components of the apparatus 1500 may generate communications and may provide the generated communications to the transmission component 1504 for transmission to the apparatus 1508. In some aspects, the transmission component 1504 may perform signal processing on the generated communications (such as filtering, amplification, modulation, digital-to-analog conversion, multiplexing, interleaving, mapping, or encoding) , and may transmit the processed signals to the apparatus 1508. In some aspects, the transmission component 1504 may include one or more antennas, one or more modems, one or more modulators, one or more transmit MIMO processors, one or more transmit processors, one or more controllers / processors, one or more memories, or a combination thereof, of the network entity described in connection with Fig. 2. In some aspects, the transmission component 1504 may be co-located with the reception component 1502 in one or more transceivers.
[0222] The communication manager 1506 may support operations of the reception component 1502 and / or the transmission component 1504. In some aspects, the communication manager 1506 may receive information associated with configuring reception of communications by the reception component 1502 and / or transmission of communications by the transmission component 1504. Additionally, or alternatively, the communication manager 1506 may generate and / or provide control information to the reception component 1502 and / or the transmission component 1504 to control reception and / or transmission of communications.
[0223] In some aspects, the transmission component 1504 may transmit a monitoring occasion configuration in accordance with an indicated device capability. The transmission component 1504 may transmit a control signal in a monitoring occasion in accordance with the monitoring occasion configuration.
[0224] In some aspects, the transmission component 1504 may transmit a query signal. The reception component 1502 may receive a device ID of an A-IoT device. The transmission component 1504 may transmit feedback with the device ID. The transmission component 1504 may transmit a control signal using the device ID.
[0225] The number and arrangement of components shown in Fig. 15 are provided as an aspect. In practice, there may be additional components, fewer components, different components, or differently arranged components than those shown in Fig. 15. Furthermore, two or more components shown in Fig. 15 may be implemented within a single component, or a single component shown in Fig. 15 may be implemented as multiple, distributed components. Additionally, or alternatively, a set of (one or more) components shown in Fig. 15 may perform one or more functions described as being performed by another set of components shown in Fig. 15.
[0226] The following provides an overview of some Aspects of the present disclosure:
[0227] Aspect 1: A method of wireless communication performed by a wireless device, comprising: receiving a monitoring occasion configuration that is associated with a device capability; and monitoring for a control signal in a monitoring occasion in accordance with the monitoring occasion configuration.
[0228] Aspect 2: The method of Aspect 1, further comprising receiving the control signal in the monitoring occasion in connection with monitoring for the control signal.
[0229] Aspect 3: The method of any of Aspects 1-2, wherein the device capability is associated with clock stability.
[0230] Aspect 4: The method of any of Aspects 1-3, wherein the device capability includes a filtering capability.
[0231] Aspect 5: The method of any of Aspects 1-4, wherein the device capability is associated with a guard interval for a monitoring occasion.
[0232] Aspect 6: The method of any of Aspects 1-5, wherein the device capability is associated with an ambient internet of things (IoT) device type.
[0233] Aspect 7: The method of any of Aspects 1-6, wherein the monitoring occasion configuration indicates that monitoring occasions for different devices are time division multiplexed and are to overlap.
[0234] Aspect 8: The method of any of Aspects 1-7, wherein the monitoring occasion configuration indicates that monitoring occasions for different devices are frequency division multiplexed.
[0235] Aspect 9: The method of any of Aspects 1-8, wherein monitoring for the control signal includes monitoring for the control signal with a cyclic redundancy check (CRC) that is specific to a device type of the wireless device or a group of the wireless device.
[0236] Aspect 10: The method of Aspect 9, wherein a length of the CRC is less than a length of a device identifier (ID) of the wireless device.
[0237] Aspect 11: The method of Aspect 10, wherein the CRC is scrambled with a truncated version of the device ID or a hash of the device ID.
[0238] Aspect 12: The method of Aspect 9, wherein a length of the CRC is greater than or equal to a length of a device identifier of the wireless device.
[0239] Aspect 13: The method of any of Aspects 1-12, wherein monitoring for the control signal includes monitoring for the control signal with a preamble that is specific to a device type of the wireless device or a group of the wireless device and a cyclic redundancy check that is specific to the device type of the wireless device or the group of the wireless device.
[0240] Aspect 14: The method of any of Aspects 1-13, wherein monitoring for the control signal includes monitoring for the control signal with a device identifier (ID) or a group ID of the wireless device.
[0241] Aspect 15: The method of Aspect 14, wherein monitoring for the control signal includes monitoring for the control signal with a cyclic redundancy check (CRC) that is specific to a device type of the wireless device or a group of the wireless device.
[0242] Aspect 16: The method of Aspect 14, wherein monitoring for the control signal includes monitoring for the control signal with a first cyclic redundancy check (CRC) and a second CRC, and wherein the first CRC has a parity length that is less than a parity length of the second CRC.
[0243] Aspect 17: The method of Aspect 14, wherein the device ID is a truncated device ID or a hash of the device ID.
[0244] Aspect 18: The method of any of Aspects 1-17, wherein monitoring for the control signal includes monitoring for the control signal with a scrambling sequence that is specific to a device type of the wireless device or a group of the wireless device.
[0245] Aspect 19: A method of wireless communication performed by a transmitting device, comprising: transmitting a monitoring occasion configuration in accordance with an indicated device capability; and transmitting a control signal in a monitoring occasion in accordance with the monitoring occasion configuration.
[0246] Aspect 20: The method of Aspect 19, wherein the monitoring occasion configuration is for a first device type that has a different clock stability than a second device type.
[0247] Aspect 21: The method of any of Aspects 19-20, wherein the monitoring occasion configuration is for a first device type that has a different filtering capability than a second device type.
[0248] Aspect 22: The method of any of Aspects 19-21, wherein the monitoring occasion configuration specifies a guard interval for a monitoring occasion for a first device type that is different than a guard interval for a monitoring occasion for a second device type.
[0249] Aspect 23: A method of wireless communication performed by a wireless device, comprising: receiving a query signal; transmitting a device identifier (ID) of the wireless device; receiving feedback with the device ID; and receiving a control signal that uses the device ID.
[0250] Aspect 24: The method of Aspect 23, wherein receiving the control signal includes receiving the control signal with a preamble that is specific to an ambient internet of things (IoT) device type of the wireless device or a group of the wireless device and a cyclic redundancy check that is specific to the ambient IoT device type of the wireless device or the group of the wireless device.
[0251] Aspect 25: The method of any of Aspects 23-24, wherein receiving the control signal includes receiving the control signal with the device ID or a group ID of the wireless device.
[0252] Aspect 26: The method of Aspect 25, wherein receiving the control signal includes receiving the control signal with a first cyclic redundancy check (CRC) and a second CRC, and wherein the first CRC has a parity length that is less than a parity length of the second CRC.
[0253] Aspect 27: A method of wireless communication performed by a transmitting device, comprising: transmitting a query signal; receiving a device identifier (ID) of an ambient internet of things (IoT) device; transmitting feedback with the device ID; and transmitting a control signal using the device ID.
[0254] Aspect 28: The method of Aspect 27, wherein transmitting the control signal includes transmitting the control signal with a preamble that is specific to an ambient IoT device type of the ambient IoT device or a group of the ambient IoT device and a cyclic redundancy check that is specific to the ambient IoT device type of the ambient IoT device or the group of the ambient IoT device.
[0255] Aspect 29: The method of any of Aspects 27-28, wherein transmitting the control signal includes transmitting the control signal with the device ID or a group ID of the ambient IoT device.
[0256] Aspect 30: The method of Aspect 29, wherein transmitting the control signal includes transmitting the control signal with a first cyclic redundancy check (CRC) and a second CRC, and wherein the first CRC has a parity length that is less than a parity length of the second CRC.
[0257] Aspect 31: An apparatus for wireless communication at a device, the apparatus comprising one or more processors; one or more memories coupled with 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 of one or more of Aspects 1-30.
[0258] Aspect 32: 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 configured to cause the device to perform the method of one or more of Aspects 1-30.
[0259] Aspect 33: An apparatus for wireless communication, the apparatus comprising at least one means for performing the method of one or more of Aspects 1-30.
[0260] Aspect 34: A non-transitory computer-readable medium storing code for wireless communication, the code comprising instructions executable by one or more processors to perform the method of one or more of Aspects 1-30.
[0261] Aspect 35: 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 of one or more of Aspects 1-30.
[0262] Aspect 36: A device for wireless communication, the device comprising a processing system that includes one or more processors and one or more memories coupled with the one or more processors, the processing system configured to cause the device to perform the method of one or more of Aspects 1-30.
[0263] Aspect 37: 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 individually or collectively configured to cause the device to perform the method of one or more of Aspects 1-30.
[0264] The foregoing disclosure provides illustration and description but is not intended to be exhaustive or to limit the aspects to the precise forms disclosed. Modifications and variations may be made in light of the above disclosure or may be acquired from practice of the aspects.
[0265] As used herein, the term “component” is intended to be broadly construed as hardware or a combination of hardware and at least one of software or firmware. “Software” shall be construed broadly to mean instructions, instruction sets, code, code segments, program code, programs, subprograms, software modules, applications, software applications, software packages, routines, subroutines, objects, executables, threads of execution, procedures, or functions, in some aspects, whether referred to as software, firmware, middleware, microcode, hardware description language, or otherwise. As used herein, a “processor” is implemented in hardware or a combination of hardware and software. It will be apparent that systems or methods described herein may be implemented in different forms of hardware or a combination of hardware and software. The actual specialized control hardware or software code used to implement these systems or methods is not limiting of the aspects. Thus, the operation and behavior of the systems or methods are described herein without reference to specific software code, because those skilled in the art will understand that software and hardware can be designed to implement the systems or methods based, at least in part, on the description herein. A component being configured to perform a function means that the component has a capability to perform the function, and does not require the function to be actually performed by the component, unless noted otherwise.
[0266] As used herein, “satisfying a threshold” may, depending on the context, refer to a value being 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, or not equal to the threshold.
[0267] As used herein, a phrase referring to “at least one of” a list of items refers to any combination of those items, including single members. As an aspect, “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 with multiples of the same element (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) .
[0268] No element, act, or instruction used herein should be construed as critical or essential unless explicitly described as such. Also, as used herein, the articles “a” and “an” are intended to include one or more items and may be used interchangeably with “one or more. ” Further, as used herein, the article “the” is intended to include one or more items referenced in connection with the article “the” and may be used interchangeably with “the one or more. ” Furthermore, as used herein, the terms “set” and “group” are intended to include one or more items and may be used interchangeably with “one or more. ” Where only one item is intended, the phrase “only one” or similar language is used. Also, as used herein, the terms “has, ” “have, ” “having, ” and similar terms are intended to be open-ended terms that do not limit an element that they modify (e.g., an element “having” A may also have B) . Further, the phrase “based on” is intended to mean “based on or otherwise in association with” unless explicitly stated otherwise. Also, as used herein, the term “or” is intended to be inclusive when used in a series and may be used interchangeably with “and / or, ” unless explicitly stated otherwise (e.g., if used in combination with “either” or “only one of” ) . It should be understood that “one or more” is equivalent to “at least one. ”
[0269] Even though particular combinations of features are recited in the claims 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 recited in the claims or disclosed in the specification. The disclosure of various aspects includes each dependent claim in combination with every other claim in the claim set.
Claims
1.An apparatus for wireless communication at a wireless device, comprising:one or more memories; andone or more processors, coupled to the one or more memories, individually or collectively configured to cause the wireless device to:receive a monitoring occasion configuration that is associated with a device capability; andmonitor for a control signal in a monitoring occasion in accordance with the monitoring occasion configuration.2.The apparatus of claim 1, wherein the one or more processors are individually or collectively configured to cause the wireless device to receive the control signal in the monitoring occasion in connection with monitoring for the control signal.3.The apparatus of claim 1, wherein the device capability is associated with clock stability.4.The apparatus of claim 1, wherein the device capability includes a filtering capability.5.The apparatus of claim 1, wherein the device capability is associated with a guard interval for a monitoring occasion.6.The apparatus of claim 1, wherein the device capability is associated with an ambient internet of things (IoT) device type.7.The apparatus of claim 1, wherein the one or more processors are individually or collectively configured to cause the wireless device to overlap.8.The apparatus of claim 1, wherein the monitoring occasion configuration indicates that monitoring occasions for different devices are frequency division multiplexed.9.The apparatus of claim 1, wherein to monitor for the control signal, the one or more processors are individually or collectively configured to cause the wireless device to monitor for the control signal with a cyclic redundancy check (CRC) that is specific to a device type of the wireless device or a group of the wireless device.10.The apparatus of claim 9, wherein a length of the CRC is less than a length of a device identifier (ID) of the wireless device.11.The apparatus of claim 10, wherein the CRC is scrambled with a truncated version of the device ID or a hash of the device ID.12.The apparatus of claim 9, wherein a length of the CRC is greater than or equal to a length of a device identifier of the wireless device.13.The apparatus of claim 1, wherein to monitor for the control signal, the one or more processors are individually or collectively configured to cause the wireless device to monitor for the control signal with a preamble that is specific to a device type of the wireless device or a group of the wireless device and a cyclic redundancy check that is specific to the device type of the wireless device or the group of the wireless device.14.The apparatus of claim 1, wherein to monitor for the control signal, the one or more processors are individually or collectively configured to cause the wireless device to monitor for the control signal with a device identifier (ID) or a group ID of the wireless device.15.The apparatus of claim 14, wherein to monitor for the control signal, the one or more processors are individually or collectively configured to cause the wireless device to monitor for the control signal with a cyclic redundancy check (CRC) that is specific to a device type of the wireless device or a group of the wireless device.16.The apparatus of claim 14, wherein to monitor for the control signal, the one or more processors are individually or collectively configured to cause the wireless device to monitor for the control signal with a first cyclic redundancy check (CRC) and a second CRC, and wherein the first CRC has a parity length that is less than a parity length of the second CRC.17.The apparatus of claim 14, wherein the device ID is a truncated device ID or a hash of the device ID.18.The apparatus of claim 1, wherein to monitor for the control signal, the one or more processors are individually or collectively configured to cause the wireless device to monitor for the control signal with a scrambling sequence that is specific to a device type of the wireless device or a group of the wireless device.19.An apparatus for wireless communication at a transmitting device, comprising:one or more memories; andone or more processors, coupled to the one or more memories, individually or collectively configured to cause the transmitting device to:transmit a monitoring occasion configuration in accordance with an indicated device capability; andtransmit a control signal in a monitoring occasion in accordance with the monitoring occasion configuration.20.The apparatus of claim 19, wherein the monitoring occasion configuration is for a first device type that has a different clock stability than a second device type.21.The apparatus of claim 19, wherein the monitoring occasion configuration is for a first device type that has a different filtering capability than a second device type.22.The apparatus of claim 19, wherein the monitoring occasion configuration specifies a guard interval for a monitoring occasion for a first device type that is different than a guard interval for a monitoring occasion for a second device type.23.An apparatus for wireless communication at a wireless device, comprising:one or more memories; andone or more processors, coupled to the one or more memories, individually or collectively configured to cause the wireless device to:receive a query signal;transmit a device identifier (ID) of the wireless device;receive feedback with the device ID; andreceive a control signal that uses the device ID.24.The apparatus of claim 23, wherein to receive the control signal, the one or more processors are individually or collectively configured to cause the wireless device to receive the control signal with a preamble that is specific to an ambient internet of things (IoT) device type of the wireless device or a group of the wireless device and a cyclic redundancy check that is specific to the ambient IoT device type of the wireless device or the group of the wireless device.25.The apparatus of claim 23, wherein to receive the control signal, the one or more processors are individually or collectively configured to cause the wireless device to receive the control signal with the device ID or a group ID of the wireless device.26.The apparatus of claim 25, wherein to receive the control signal, the one or more processors are individually or collectively configured to cause the wireless device to receive the control signal with a first cyclic redundancy check (CRC) and a second CRC, and wherein the first CRC has a parity length that is less than a parity length of the second CRC.27.An apparatus for wireless communication at a transmitting device, comprising:one or more memories; andone or more processors, coupled to the one or more memories, individually or collectively configured to cause the transmitting device to:transmit a query signal;receive a device identifier (ID) of an ambient internet of things (IoT) device;transmit feedback with the device ID; andtransmit a control signal using the device ID.28.The apparatus of claim 27, wherein to transmit the control signal, the one or more processors are individually or collectively configured to cause the transmitting device to transmit the control signal with a preamble that is specific to an ambient IoT device type of the ambient IoT device or a group of the ambient IoT device and a cyclic redundancy check that is specific to the ambient IoT device type of the ambient IoT device or the group of the ambient IoT device.29.The apparatus of claim 27, wherein to transmit the control signal, the one or more processors are individually or collectively configured to cause the transmitting device to transmit the control signal with the device ID or a group ID of the ambient IoT device.30.The apparatus of claim 29, wherein to transmit the control signal, the one or more processors are individually or collectively configured to cause the transmitting device to transmit the control signal with a first cyclic redundancy check (CRC) and a second CRC, and wherein the first CRC has a parity length that is less than a parity length of the second CRC.
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