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WO2025189793A1 - Modulation à bande latérale d'un dispositif iot - Google Patents

Modulation à bande latérale d'un dispositif iot

Info

Publication number
WO2025189793A1
WO2025189793A1 PCT/CN2024/130573 CN2024130573W WO2025189793A1 WO 2025189793 A1 WO2025189793 A1 WO 2025189793A1 CN 2024130573 W CN2024130573 W CN 2024130573W WO 2025189793 A1 WO2025189793 A1 WO 2025189793A1
Authority
WO
WIPO (PCT)
Prior art keywords
transmission
modulation
sideband
supports
scheduling information
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
PCT/CN2024/130573
Other languages
English (en)
Inventor
Zhennian SUN
Haipeng Lei
Xiaodong Yu
Xin Guo
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Lenovo Beijing Ltd
Original Assignee
Lenovo Beijing Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Lenovo Beijing Ltd filed Critical Lenovo Beijing Ltd
Priority to PCT/CN2024/130573 priority Critical patent/WO2025189793A1/fr
Publication of WO2025189793A1 publication Critical patent/WO2025189793A1/fr
Pending legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/12—Wireless traffic scheduling
    • H04W72/1263—Mapping of traffic onto schedule, e.g. scheduled allocation or multiplexing of flows
    • H04W72/1273—Mapping of traffic onto schedule, e.g. scheduled allocation or multiplexing of flows of downlink data flows
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H04L5/003—Arrangements for allocating sub-channels of the transmission path
    • H04L5/0053—Allocation of signalling, i.e. of overhead other than pilot signals
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W4/00—Services specially adapted for wireless communication networks; Facilities therefor
    • H04W4/70—Services for machine-to-machine communication [M2M] or machine type communication [MTC]

Definitions

  • the present disclosure relates to wireless communications, and more specifically to sideband modulation of an ambient Internet of things (A-IoT) device.
  • A-IoT ambient Internet of things
  • a wireless communications system may include one or multiple network communication devices, such as base stations (BSs) , which may be otherwise known as an eNodeB (eNB) , a next-generation NodeB (gNB) , or other suitable terminology.
  • BSs base stations
  • eNB eNodeB
  • gNB next-generation NodeB
  • Each network communication device such as a base station may support wireless communications for one or multiple user communication devices, which may be otherwise known as user equipment (UE) , or other suitable terminology.
  • the wireless communications system may support wireless communications with one or multiple user communication devices by utilizing resources of the wireless communication system (e.g., time resources (e.g., symbols, slots, subframes, frames, or the like) or frequency resources (e.g., subcarriers, carriers) .
  • time resources e.g., symbols, slots, subframes, frames, or the like
  • frequency resources e.g., subcarriers, carriers
  • the wireless communications system may support wireless communications across various radio access technologies including third generation (3G) radio access technology, fourth generation (4G) radio access technology, fifth generation (5G) radio access technology, among other suitable radio access technologies beyond 5G (e.g., sixth generation (6G) ) .
  • 3G third generation
  • 4G fourth generation
  • 5G fifth generation
  • 6G sixth generation
  • a wireless communication system may include an A-IoT device, which has a lower capability in terms of complexity and power consumption.
  • the wireless communication system may also be referred to as an A-IoT system.
  • Multiple topologies for example, Topologies 1 to 4, are supported for the A-IoT device.
  • Topology 1 the A-IoT device directly and bidirectionally communicates with a BS.
  • Topology 2 the A-IoT device communicates bidirectionally with an intermediate node between the A-IoT device and a BS.
  • Topology 3 the A-IoT device communicates uidirectionally with a BS and communicates uidirectionally with an assisting node.
  • the A-IoT device communicates bidirectionally with a UE.
  • some transmission enhancements in the A-IoT system especially, sideband modulation of the A-IoT device considering one or more of the above topologies, are still needed.
  • the present disclosure relates to methods, apparatuses, and systems that support sideband modulation of the A-IoT device. With the apparatuses and methods, it is possible to improve communication performance in the A-IoT system efficiently.
  • a first device comprising at least one memory, and at least one processor coupled with the at least one memory and configured to cause the first device to: receive, from a second device, a first transmission, wherein whether the second device supports a single sideband (1SB) modulation is indicated based on the first transmission, transmit, to the second device, scheduling information for a second transmission from the second device, and receive, from the second device, the second transmission based on at least one of the scheduling information or whether the second device supports the 1SB modulation.
  • 1SB single sideband
  • a method performed by the first device comprises: receiving, from a second device, a first transmission, wherein whether the second device supports a single sideband (1SB) modulation is indicated based on the first transmission, transmitting, to the second device, scheduling information for a second transmission from the second device, and receiving, from the second device, the second transmission based on at least one of the scheduling information or whether the second device supports the 1SB modulation.
  • 1SB single sideband
  • a processor for wireless communication comprises at least one controller coupled with at least one memory and configured to cause the processor to: receive, from a second device, a first transmission, wherein whether the second device supports a single sideband (1SB) modulation is indicated based on the first transmission, transmit, to the second device, scheduling information for a second transmission from the second device, and receive, from the second device, the second transmission based on at least one of the scheduling information or whether the second device supports the 1SB modulation.
  • 1SB single sideband
  • Some implementations of the method and the first device described herein may further include one of the following: determining that the second device does not support the 1SB modulation based on determining that the first transmission is detected on two sidebands, or determining that the second device supports the 1SB modulation based on determining that the first transmission is detected on one sideband.
  • some implementations of the method and the first device described herein may further include one of the following: determining a sideband used for the second transmission as a same sideband as that used for the first transmission, determining a sideband used for the second transmission as a sideband indicated in the first transmission, or determining a sideband used for the second transmission based on a random identifier associated with the second device indicated in the first transmission.
  • the first transmission may be a physical device-to-reader channel (PDRCH) transmission carrying a message 1 (MSG1) .
  • the second transmission may be a PDRCH transmission carrying a message 3 (MSG3) .
  • the scheduling information may be carried by a physical reader-to-device channel (PRDCH) carrying a message 2 (MSG2) .
  • PRDCH physical reader-to-device channel
  • the first device may comprise one of a relay, an integrated access backhaul (IAB) node, a user equipment (UE) , a repeater, or a base station (BS)
  • the second device may comprise an A-IoT device.
  • a second device comprising at least one memory, and at least one processor coupled with the at least one memory and configured to cause the second device to: perform a first transmission to a first device, wherein whether the second device supports a single sideband (1SB) modulation is indicated based on the first transmission, receive, from the first device, scheduling information for the second transmission to the first device, and perform the second transmission based on at least one of the scheduling information or whether the second device supports the 1SB modulation.
  • 1SB single sideband
  • a method performed by the second device comprises: performing a first transmission to a first device, wherein whether the second device supports a single sideband (1SB) modulation is indicated based on the first transmission, receiving, from the first device, scheduling information for the second transmission to the first device, and performing the second transmission based on at least one of the scheduling information or whether the second device supports the 1SB modulation.
  • 1SB single sideband
  • a processor for wireless communication comprises at least one controller coupled with at least one memory and configured to cause the processor to: perform a first transmission to a first device, wherein whether the second device supports a single sideband (1SB) modulation is indicated based on the first transmission, receive, from the first device, scheduling information for the second transmission to the first device, and perform the second transmission based on at least one of the scheduling information or whether the second device supports the 1SB modulation.
  • the processor comprises at least one controller coupled with at least one memory and configured to cause the processor to: perform a first transmission to a first device, wherein whether the second device supports a single sideband (1SB) modulation is indicated based on the first transmission, receive, from the first device, scheduling information for the second transmission to the first device, and perform the second transmission based on at least one of the scheduling information or whether the second device supports the 1SB modulation.
  • 1SB single sideband
  • performing the first transmission may comprise one of the following: performing the first transmission on two sidebands if the second device does not support the 1SB modulation, or performing the first transmission on one sideband if the second device supports the 1SB modulation.
  • the first transmission may comprise an indication indicating whether the second device supports the 1SB modulation.
  • the indication may further indicate a sideband to be used for a subsequent transmission if the second device supports the 1SB modulation.
  • the scheduling information may comprise an indication indicating whether the 1SB modulation is to be used for the second transmission.
  • the indication may further indicate a sideband to be used for the second transmission if the 1SB modulation is to be used for the second transmission.
  • performing the second transmission may comprise one of the following: performing the second transmission with a double sideband (2SB) modulation if the second device does not support the 1SB modulation, or performing the second transmission with the 1SB modulation if the second device supports the 1SB modulation.
  • 2SB double sideband
  • some implementations of the method and the second device described herein may further include one of the following: determining a sideband used for the second transmission as a same sideband as that used for the first transmission, determining a sideband used for the second transmission as a sideband indicated in the first transmission, or determining a sideband used for the second transmission based on a random identifier associated with the second device.
  • the first transmission may be a physical device-to-reader channel (PDRCH) transmission carrying a message 1 (MSG1) .
  • the second transmission may be a PDRCH transmission carrying a message 3 (MSG3) .
  • the scheduling information may be carried by a physical reader-to-device channel (PRDCH) carrying a message 2 (MSG2) .
  • PRDCH physical reader-to-device channel
  • the first device may comprise one of a relay, an integrated access backhaul (IAB) node, a user equipment (UE) , a repeater, or a base station (BS)
  • the second device may comprise an A-IoT device.
  • FIG. 1A illustrates an example of a wireless communications system that supports sideband modulation of the A-IoT device in accordance with aspects of the present disclosure
  • FIG. 1B illustrates an example of Topology 1 associated with aspects of the present disclosure
  • FIG. 1C illustrates an example of Topology 2 associated with aspects of the present disclosure
  • FIG. 1D illustrates an example of Topology 3 associated with aspects of the present disclosure
  • FIG. 1E illustrates an example of Topology 4 associated with aspects of the present disclosure
  • FIG. 1F illustrates another example of a wireless communications system associated with aspects of the present disclosure
  • FIGS. 1G to 1J illustrate example small frequency shifts associated with aspects of the present disclosure
  • FIG. 2 illustrates an example process flow in accordance with some example embodiments of the present disclosure
  • FIG. 3 illustrates an example of a device that supports sideband modulation of the A-IoT device in accordance with aspects of the present disclosure
  • FIG. 4 illustrates an example of a processor that supports sideband modulation of the A-IoT device in accordance with aspects of the present disclosure
  • FIGS. 5 through 6 illustrate flowcharts of methods that support sideband modulation of the A-IoT device in accordance with aspects of the present disclosure.
  • references in the present disclosure to “one embodiment, ” “an example embodiment, ” “an embodiment, ” “some embodiments, ” and the like indicate that the embodiment (s) described may include a particular feature, structure, or characteristic, but it is not necessary that every embodiment includes the particular feature, structure, or characteristic. Moreover, such phrases do not necessarily refer to the same embodiment (s) . Further, when a particular feature, structure, or characteristic is described in connection with an embodiment, it is submitted that it is within the knowledge of one skilled in the art to affect such feature, structure, or characteristic in connection with other embodiments whether or not explicitly described.
  • first and second or the like may be used herein to describe various elements, these elements should not be limited by these terms. These terms are only used to distinguish one element from another element. For example, a first element could also be termed as a second element, and similarly, a second element could also be termed as a first element, without departing from the scope of embodiments. As used herein, the term “and/or” includes any and all combinations of one or more of the listed terms.
  • the communications between a UE and a network device in the communication network may be performed according to any suitable generation communication protocols, including but not limited to, the first generation (1G) , the second generation (2G) , 2.5G, 2.75G, the third generation (3G) , the 4G, 4.5G, the 5G communication protocols, and/or any other protocols either currently known or to be developed in the future.
  • any suitable generation communication protocols including but not limited to, the first generation (1G) , the second generation (2G) , 2.5G, 2.75G, the third generation (3G) , the 4G, 4.5G, the 5G communication protocols, and/or any other protocols either currently known or to be developed in the future.
  • Embodiments of the present disclosure may be applied in various communication systems. Given the rapid development in communications, there will also be future type communication technologies and systems in which the present disclosure may be embodied. It should not be seen as limiting the scope of the present disclosure to only the aforementioned systems.
  • the term “network device” generally refers to a node in a communication network via which a UE can access the communication network and receive services therefrom.
  • the network device may refer to a base station (BS) or an access point (AP) , for example, a node B (NodeB or NB) , a radio access network (RAN) node, an evolved NodeB (eNodeB or eNB) , an NR NB (also referred to as a gNB) , a Remote Radio Unit (RRU) , a radio header (RH) , an infrastructure device for a vehicle-to-everything (V2X) communication, a transmission and reception point (TRP) , a reception point (RP) , a remote radio head (RRH) , a relay, an integrated access and backhaul (IAB) node, a low power node such as a femto a base station (BS) , a pico BS, and so forth, a
  • the network device may further refer to a network function (NF) in the core network, for example, a service management function (SMF) , an access and mobility management function (AMF) , a policy control function (PCF) , a user plane function (UPF) or devices with the same function in future network architectures, and so forth.
  • NF network function
  • SMF service management function
  • AMF access and mobility management function
  • PCF policy control function
  • UPF user plane function
  • UE user equipment
  • a UE generally refers to any end device that may be capable of wireless communications.
  • a UE may also be referred to as a communication device, a terminal device, an end user device, a subscriber station (SS) , an unmanned aerial vehicle (UAV) , a portable subscriber station, a mobile station (MS) , or an access terminal (AT) .
  • SS subscriber station
  • UAV unmanned aerial vehicle
  • MS mobile station
  • AT access terminal
  • the UE may include, but is not limited to, a mobile phone, a cellular phone, a smart phone, a voice over IP (VoIP) phone, a wireless local loop phone, a tablet, a wearable UE, a personal digital assistant (PDA) , a portable computer, a desktop computer, an image capture UE such as a digital camera, a gaming UE, a music storage and playback appliance, a vehicle-mounted wireless UE, a wireless endpoint, a mobile station, laptop-embedded equipment (LEE) , laptop-mounted equipment (LME) , a USB dongle, a smart device, wireless customer-premises equipment (CPE) , an Internet of Things (loT) device, a watch or other wearable, a head-mounted display (HMD) , a vehicle, a drone, a medical device (for example, a remote surgery device) , an industrial device (for example, a robot and/or other wireless devices operating in an industrial and/or an automated processing chain
  • the term “A-IoT device” refers to a device without batteries or with limited energy storage capabilities.
  • energy is provided by harvesting radio waves, light, motion, heat, or any other suitable source.
  • the A-IoT device can also be called a zero-power terminal, a near-zero power terminal, a passive IoT device, an ambient backscatter communication (AmBC) device, a tag, etc.
  • AmBC ambient backscatter communication
  • A-IoT has lower complexity and lower power consumption, and is suitable for more application scenarios.
  • D2R transmission refers to a transmission initiated by an A-IoT device and transmitted to a reader (such as a BS, an intermediate node, an assisting node, or a UE) .
  • R2D transmission refers to a transmission initiated by a reader and transmitted to an A-IoT device.
  • FIG. 1A illustrates an example of a wireless communications system (or referred to as a communication network) 100 that supports sideband modulation of the A- IoT device in accordance with aspects of the present disclosure.
  • the wireless communications system 100 may include one or more network entities 102 (also referred to as network equipment) , one or more UEs 104, a core network 106, and a packet data network 108.
  • the wireless communications system 100 may support various radio access technologies.
  • the wireless communications system 100 may be a 4G network, such as an LTE network or an LTE-Advanced (LTE-A) network.
  • LTE-A LTE-Advanced
  • the wireless communications system 100 may be a 5G network, such as an NR network.
  • the wireless communications system 100 may be a combination of a 4G network and a 5G network, or other suitable radio access technology including Institute of Electrical and Electronics Engineers (IEEE) 802.11 (Wi-Fi) , IEEE 802.16 (WiMAX) , IEEE 802.20.
  • IEEE Institute of Electrical and Electronics Engineers
  • Wi-Fi Wi-Fi
  • WiMAX IEEE 802.16
  • IEEE 802.20 The wireless communications system 100 may support radio access technologies beyond 5G. Additionally, the wireless communications system 100 may support technologies, such as time division multiple access (TDMA) , frequency division multiple access (FDMA) , or code division multiple access (CDMA) , etc.
  • TDMA time division multiple access
  • FDMA frequency division multiple access
  • CDMA code division multiple access
  • the one or more network entities 102 may be dispersed throughout a geographic region to form the wireless communications system 100.
  • One or more of the network entities 102 described herein may be or include or may be referred to as a network node, a base station, a network element, a radio access network (RAN) , a base transceiver station, an access point, a NodeB, an eNodeB (eNB) , a next-generation NodeB (gNB) , or other suitable terminology.
  • a network entity 102 and a UE 104 may communicate via a communication link 110, which may be a wireless or wired connection.
  • a network entity 102 and a UE 104 may perform wireless communication (e.g., receive signaling, transmit signaling) over a Uu interface.
  • a network entity 102 may provide a geographic coverage area 112 for which the network entity 102 may support services (e.g., voice, video, packet data, messaging, broadcast, etc. ) for one or more UEs 104 within the geographic coverage area 112.
  • a network entity 102 and a UE 104 may support wireless communication of signals related to services (e.g., voice, video, packet data, messaging, broadcast, etc. ) according to one or multiple radio access technologies.
  • a network entity 102 may be moveable, for example, a satellite associated with a non-terrestrial network.
  • different geographic coverage areas 112 associated with the same or different radio access technologies may overlap, but the different geographic coverage areas 112 may be associated with different network entities 102.
  • Information and signals described herein may be represented using any of a variety of different technologies and techniques.
  • data, instructions, commands, information, signals, bits, symbols, and chips that may be referenced throughout the description may be represented by voltages, currents, electromagnetic waves, magnetic fields or particles, optical fields or particles, or any combination thereof.
  • the one or more UEs 104 may be dispersed throughout a geographic region of the wireless communications system 100.
  • a UE 104 may include or may be referred to as a mobile device, a wireless device, a remote device, a remote unit, a handheld device, or a subscriber device, or some other suitable terminology.
  • the UE 104 may be referred to as a unit, a station, a terminal, or a client, among other examples.
  • the UE 104 may be referred to as an Internet-of-Things (IoT) device, an Internet-of-Everything (IoE) device, or machine-type communication (MTC) device, among other examples.
  • IoT Internet-of-Things
  • IoE Internet-of-Everything
  • MTC machine-type communication
  • a UE 104 may be stationary in the wireless communications system 100.
  • a UE 104 may be mobile in the wireless communications system 100.
  • the one or more UEs 104 may be devices in different forms or having different capabilities. Some examples of UEs 104 are illustrated in FIG. 1A.
  • a UE 104 may be capable of communicating with various types of devices, such as the network entities 102, other UEs 104, or network equipment (e.g., the core network 106, the packet data network 108, a relay device, an integrated access and backhaul (IAB) node, or another network equipment) , as shown in FIG. 1A.
  • a UE 104 may support communication with other network entities 102 or UEs 104, which may act as relays in the wireless communications system 100.
  • a UE 104 may also be able to support wireless communication directly with other UEs 104 over a communication link 114.
  • a UE 104 may support wireless communication directly with another UE 104 over a device-to-device (D2D) communication link.
  • D2D device-to-device
  • the communication link 114 may be referred to as a sidelink.
  • a UE 104 may support wireless communication directly with another UE 104 over a PC5 interface.
  • a network entity 102 may support communications with the core network 106, or with another network entity 102, or both.
  • a network entity 102 may interface with the core network 106 through one or more backhaul links 116 (e.g., via an S1, N2, N2, or another network interface) .
  • the network entities 102 may communicate with each other over the backhaul links 116 (e.g., via an X2, Xn, or another network interface) .
  • the network entities 102 may communicate with each other directly (e.g., between the network entities 102) .
  • the network entities 102 may communicate with each other or indirectly (e.g., via the core network 106) .
  • one or more network entities 102 may include subcomponents, such as an access network entity, which may be an example of an access node controller (ANC) .
  • An ANC may communicate with the one or more UEs 104 through one or more other access network transmission entities, which may be referred to as a radio heads, smart radio heads, or transmission-reception points (TRPs) .
  • TRPs transmission-reception points
  • a network entity 102 may be configured in a disaggregated architecture, which may be configured to utilize a protocol stack physically or logically distributed among two or more network entities 102, such as an integrated access backhaul (IAB) network, an open RAN (O-RAN) (e.g., a network configuration sponsored by the O-RAN Alliance) , or a virtualized RAN (vRAN) (e.g., a cloud RAN (C-RAN) ) .
  • IAB integrated access backhaul
  • O-RAN open RAN
  • vRAN virtualized RAN
  • C-RAN cloud RAN
  • a network entity 102 may include one or more of a central unit (CU) , a distributed unit (DU) , a radio unit (RU) , a RAN Intelligent Controller (RIC) (e.g., a Near-Real Time RIC (Near-RT RIC) , a Non-Real Time RIC (Non-RT RIC) ) , a Service Management and Orchestration (SMO) system, or any combination thereof.
  • CU central unit
  • DU distributed unit
  • RU radio unit
  • RIC RAN Intelligent Controller
  • RIC e.g., a Near-Real Time RIC (Near-RT RIC) , a Non-Real Time RIC (Non-RT RIC)
  • SMO Service Management and Orchestration
  • An RU may also be referred to as a radio head, a smart radio head, a remote radio head (RRH) , a remote radio unit (RRU) , or a transmission reception point (TRP) .
  • One or more components of the network entities 102 in a disaggregated RAN architecture may be co-located, or one or more components of the network entities 102 may be located in distributed locations (e.g., separate physical locations) .
  • one or more network entities 102 of a disaggregated RAN architecture may be implemented as virtual units (e.g., a virtual CU (VCU) , a virtual DU (VDU) , a virtual RU (VRU) ) .
  • VCU virtual CU
  • VDU virtual DU
  • VRU virtual RU
  • Split of functionality between a CU, a DU, and an RU may be flexible and may support different functionalities depending upon which functions (e.g., network layer functions, protocol layer functions, baseband functions, radio frequency functions, and any combinations thereof) are performed at a CU, a DU, or an RU.
  • functions e.g., network layer functions, protocol layer functions, baseband functions, radio frequency functions, and any combinations thereof
  • a functional split of a protocol stack may be employed between a CU and a DU such that the CU may support one or more layers of the protocol stack and the DU may support one or more different layers of the protocol stack.
  • the CU may host upper protocol layer (e.g., a layer 3 (L3) , a layer 2 (L2) ) functionality and signaling (e.g., radio resource control (RRC) , service data adaption protocol (SDAP) , Packet Data Convergence Protocol (PDCP) ) .
  • RRC radio resource control
  • SDAP service data adaption protocol
  • PDCP Packet Data Convergence Protocol
  • the CU may be connected to one or more DUs or RUs, and the one or more DUs or RUs may host lower protocol layers, such as a layer 1 (L1) (e.g., physical (PHY) layer) or an L2 (e.g., radio link control (RLC) layer, MAC layer) functionality and signaling, and may each be at least partially controlled by the CU.
  • L1 e.g., physical (PHY) layer
  • L2 radio link control
  • a functional split of the protocol stack may be employed between a DU and an RU such that the DU may support one or more layers of the protocol stack and the RU may support one or more different layers of the protocol stack.
  • the DU may support one or multiple different cells (e.g., via one or more RUs) .
  • a functional split between a CU and a DU, or between a DU and an RU may be within a protocol layer (e.g., some functions for a protocol layer may be performed by one of a CU, a DU, or an RU, while other functions of the protocol layer are performed by a different one of the CU, the DU, or the RU) .
  • a CU may be functionally split further into CU control plane (CU-CP) and CU user plane (CU-UP) functions.
  • a CU may be connected to one or more DUs via a midhaul communication link (e.g., F1, F1-c, F1-u)
  • a DU may be connected to one or more RUs via a fronthaul communication link (e.g., open fronthaul (FH) interface)
  • FH open fronthaul
  • a midhaul communication link or a fronthaul communication link may be implemented in accordance with an interface (e.g., a channel) between layers of a protocol stack supported by respective network entities 102 that are in communication via such communication links.
  • the core network 106 may support user authentication, access authorization, tracking, connectivity, and other access, routing, or mobility functions.
  • the core network 106 may be an evolved packet core (EPC) , or a 5G core (5GC) , which may include a control plane entity that manages access and mobility (e.g., a mobility management entity (MME) , an access and mobility management functions (AMF) ) and a user plane entity that routes packets or interconnects to external networks (e.g., a serving gateway (S-GW) , a Packet Data Network (PDN) gateway (P-GW) , or a user plane function (UPF) ) .
  • EPC evolved packet core
  • 5GC 5G core
  • MME mobility management entity
  • AMF access and mobility management functions
  • S-GW serving gateway
  • PDN gateway Packet Data Network gateway
  • UPF user plane function
  • control plane entity may manage non-access stratum (NAS) functions, such as mobility, authentication, and bearer management (e.g., data bearers, signal bearers, etc. ) for the one or more UEs 104 served by the one or more network entities 102 associated with the core network 106.
  • NAS non-access stratum
  • the core network 106 may communicate with the packet data network 108 over one or more backhaul links 116 (e.g., via an S1, N2, N2, or another network interface) .
  • the packet data network 108 may include an application server 118.
  • one or more UEs 104 may communicate with the application server 118.
  • a UE 104 may establish a session (e.g., a protocol data unit (PDU) session, or the like) with the core network 106 via a network entity 102.
  • the core network 106 may route traffic (e.g., control information, data, and the like) between the UE 104 and the application server 118 using the established session (e.g., the established PDU session) .
  • the PDU session may be an example of a logical connection between the UE 104 and the core network 106 (e.g., one or more network functions of the core network 106) .
  • the network entities 102 and the UEs 104 may use resources of the wireless communications system 100 (e.g., time resources (e.g., symbols, slots, subframes, frames, or the like) or frequency resources (e.g., subcarriers, carriers) ) to perform various operations (e.g., wireless communications) .
  • the network entities 102 and the UEs 104 may support different resource structures.
  • the network entities 102 and the UEs 104 may support different frame structures.
  • the network entities 102 and the UEs 104 may support a single frame structure.
  • the network entities 102 and the UEs 104 may support various frame structures (i.e., multiple frame structures) .
  • the network entities 102 and the UEs 104 may support various frame structures based on one or more numerologies.
  • One or more numerologies may be supported in the wireless communications system 100, and a numerology may include a subcarrier spacing and a cyclic prefix.
  • a first subcarrier spacing e.g., 15 kHz
  • a normal cyclic prefix e.g. 15 kHz
  • the first numerology associated with the first subcarrier spacing (e.g., 15 kHz) may utilize one slot per subframe.
  • a time interval of a resource may be organized according to frames (also referred to as radio frames) .
  • Each frame may have a duration, for example, a 10 millisecond (ms) duration.
  • each frame may include multiple subframes.
  • each frame may include 10 subframes, and each subframe may have a duration, for example, a 1 ms duration.
  • each frame may have the same duration.
  • each subframe of a frame may have the same duration.
  • a time interval of a resource may be organized according to slots.
  • a subframe may include a number (e.g., quantity) of slots.
  • the number of slots in each subframe may also depend on the one or more numerologies supported in the wireless communications system 100.
  • a slot For a normal cyclic prefix, a slot may include 14 symbols.
  • a slot For an extended cyclic prefix (e.g., applicable for 60 kHz subcarrier spacing) , a slot may include 12 symbols.
  • the network entities 102 and the UEs 104 may perform wireless communications over one or more of the operating frequency bands.
  • FR1 may be used by the network entities 102 and the UEs 104, among other equipment or devices for cellular communications traffic (e.g., control information, data) .
  • FR2 may be used by the network entities 102 and the UEs 104, among other equipment or devices for short-range, high data rate capabilities.
  • FIG. 1B illustrates an example of Topology 1 associated with aspects of the present disclosure.
  • an A-IoT device 121 communicates with a BS 122 directly and bi-directionally.
  • the communication between the BS 122 and the A-IoT device 121 includes A-IoT data and/or signalling.
  • This topology includes a possibility of a transmission from the BS 122 to the A-IoT device 121 and a different possibility of a transmission from the A-IoT device 121 to the BS 122.
  • FIG. 1C illustrates an example of Topology 2 associated with aspects of the present disclosure.
  • an A-IoT device 131 communicates bidirectionally with an intermediate node 132 between the A-IoT device 131 and base station 133.
  • the intermediate node 132 may be a relay node, an IAB node, a UE, a repeater, etc., which is capable of A-IoT.
  • the intermediate node 132 transfers A-IoT data and/or signalling between the BS 133 and the A-IoT device 131.
  • Topology 3 may comprise two topology types, i.e., Topology 3A and Topology 3B.
  • FIG. 1D illustrates an example of Topology 3 with a topology type of 3B associated with aspects of the present disclosure.
  • an A-IoT device 141 receives data/signalling from a BS 142 and transmits data/signalling to an assisting node 143.
  • the assisting node 143 may be a relay, IAB, UE, repeater, etc. which is capable of A-IoT.
  • the example illustration of FIG. 1D also applies, only with the difference that it has the opposite direction of the A-IoT data/signaling.
  • an A-IoT device 141 transmits data/signalling to a BS 142, and receives data/signalling from an assisting node 143.
  • FIG. 1E illustrates an example of Topology 4 associated with aspects of the present disclosure.
  • an A-IoT device 151 communicates bidirectionally with a UE 152.
  • the communication between the UE 152 and the A-IoT device 151 includes A-IoT data and/or signalling.
  • the above communicate devices involved in Topologies 1 to 4 with reference to FIG. 1B to FIG. 1E may be implemented by devices involved in the wireless communications system 100 as described herein with reference to FIG. 1A.
  • the BS 122, the BS 133, or the BS 142 may be implemented by the base station 102 in FIG. 1A.
  • the BS intermediate node 132 (when implemented by a UE) , the assisting node 143 (when implemented by a UE) , or the UE 152 may be implemented by the UE 104 in FIG. 1A.
  • FIG. 1F illustrates another example of a wireless communications system 160 associated with aspects of the present disclosure.
  • the wireless communications system 160 may comprise a first device 161 and a second device 162.
  • the first device 161 may perform communications with the second device 162.
  • the communication between the first device 161 and the second device 162 may be direct or indirect.
  • the first device 161 and/or the second device 162 may communicate with one or more further devices not shown in FIG. 1F.
  • the first device 161 may comprise the BS 122, and the second device 162 may comprise the A-IoT device 121.
  • the first device 161 may comprise the intermediate node 132, and the second device 162 may comprise the A-IoT device 131.
  • the first device 161 may comprise the BS 142 or the assisting node 143, and the second device 162 may comprise the A-IoT device 141.
  • the first device 161 may comprise the UE 152, and the second device 162 may comprise the A-IoT device 151.
  • the communications system 160 may include any suitable number of communication devices and any suitable number of communication links for implementing embodiments of the present disclosure.
  • ⁇ Option 2 By multiplying the Manchester codeword with a square wave corresponding to the small frequency-shift.
  • ⁇ Potential purposes include:
  • D2R of the D2R transmissions associated with one/each single-tone of a carrier-wave capture FIG. 1G for small frequency-shift by: Manchester with option 1, and if no D2R line-code is used (i.e., by using a square-wave corresponding to the small frequency-shift) in the TR, where:
  • ⁇ Fc is the carrier-wave frequency, at least when externally generated
  • ⁇ FSx depicts examples of amount of small frequency shift
  • +FSx and -FSx parts are included.
  • D2R of the D2R transmissions associated with one/each single-tone of a carrier-wave capture the FIG. 1H for small frequency-shift by: Manchester with option 1, and if no D2R line-code is used (i.e., by using a square-wave corresponding to the small frequency-shift) in the TR, where:
  • ⁇ Fc is the carrier-wave frequency, at least when externally generated
  • ⁇ FSx depicts examples of amount of small frequency shift
  • D2R of the D2R transmissions associated with one/each single-tone of a carrier-wave capture FIG. 1I for small frequency-shift by: Manchester with option 2, and by Miller line-code in the TR:
  • D2R of the D2R transmissions associated with one/each single-tone of a carrier-wave capture FIG. 1J for small frequency-shift by: Manchester with option 2, and by Miller line-code in the TR, where:
  • ⁇ Fc is the carrier-wave frequency, at least when externally generated
  • ⁇ FSx depicts examples of amount of small frequency shift
  • the modulation of a PDRCH may comprise double sideband (2SB) modulation and single sideband (1SB) modulation.
  • 2SB modulation is feasible for all A-IoT devices, and the feasibility and necessity of the 1SB modulation may depend on the impacts due to issues including device-side filtering requirements (i.e. image suppression) , RF resource usage /spectral efficiency, etc.
  • 3GPP third generation partnership project
  • the 1SB modulation requires the capability of image suppression, however, the 1SB modulation has better spectral efficiency than the 2SB modulation.
  • the 1SB modulation may be only supported by some A-IoT devices, and the other A-IoT devices may only support the 2SB modulation.
  • a device 1 (such as with device type A) may only support the 2SB modulation and a device 2a and device 2b (such as with device type B) may support both the 2SB modulation and the 1SB modulation.
  • an A-IoT device with the 1SB modulation may only use 1 sideband, and the other sideband band of the same small frequency shifter may be used by another A-IoT device with the 1 SB modulation.
  • a first device receives, from a second device (for example, an A-IoT device) , a first transmission. Whether the second device supports a single sideband (1SB) modulation is indicated based on the first transmission.
  • the first device transmits, to the second device, scheduling information for a second transmission from the second device to the first device.
  • the first device receives, from the second device, the second transmission based on at least one of the scheduling information or whether the second device supports the 1SB modulation.
  • this solution can facilitate the reporting of the modulation capability of the second device and the subsequent transmission considering the modulation capability. In this way, it is possible to improve communication performance in the A-IoT system efficiently.
  • FIG. 2 illustrates an example process flow 200 in accordance with some example embodiments of the present disclosure.
  • the processes 200 will be described with reference to FIG. 1F. It is to be understood that the steps and the order of the steps in FIG. 2 are merely for illustration, and not for limitation. It is to be understood that the process 200 may further include additional blocks not shown and/or omit some shown blocks, and the scope of the present disclosure is not limited in this regard.
  • the second device 162 performs (205) a transmission (also referred to as a first transmission) to the first device 161. Accordingly, the first device 161 receives the first transmission from the second device 162.
  • the first transmission may comprise multiple types of transmissions.
  • the first transmission may also comprise any other types of transmissions, and the scope of the present disclosure will not be limited in this regard.
  • the second device 162 may inform the first device 161 whether it supports the 1SB modulation based on the first transmission to assist the subsequent scheduling. Based on the reception of the first transmission, the first device 161 may determine the modulation capability of the second device 162, which may then facilitate the following scheduling and further communication.
  • the second device 162 may implicitly indicate the modulation capability (i.e., whether the second device 162 supports the 1SB modulation) based on the first transmission.
  • the modulation capability may be indicated based on which one or more sidebands are used.
  • the second device 162 may perform the first transmission on two sidebands (i.e., with the 2SB modulation) if the second device 162 does not support the 1SB modulation (for example, if the second device 162 is with the device type A) .
  • the first device 161 may determine that the second device 162 does not support the 1SB modulation if the first transmission is detected on two sidebands.
  • the second device 162 may perform the D2R transmission carrying the MSG1 with the 2SB modulation if the second device 162 is of the type A, and accordingly, if the same random identifier (ID) in the MSG1 on two sidebands is detected, the first device 161 may identify that the second device 162 only supports the 2SB modulation.
  • the second device 162 may perform the first transmission on one sideband (i.e., with the 1SB modulation) if the second device 162 supports the 1SB modulation (for example, if the second device 162 is with device type B) .
  • the first device 161 may determine that the second device 162 supports the 1SB modulation if the first transmission is detected on one sideband.
  • the second device 162 may perform the D2R transmission carrying the MSG1 with the 1SB modulation if the second device 162 is of the type B, and accordingly, if the first device 161 detects a PDRCH carrying the MSG1 associated with a random ID on only one sideband (for example, the first device 161 only detects a PDRCH carrying the MSG1 on F c -FS X or F c +FS X ) , it may determine that the second device 162 supports both the 2SB modulation and the 1SB modulation.
  • Which sideband to be used for the first transmission may be up to the implementation of the second device 162.
  • the second device 162 may randomly select one sideband from the two sidebands, for example, F c -FS X or F c +FS X .
  • the second device 162 may explicitly indicate the modulation capability (i.e., whether the second device 162 supports the 1SB modulation) in the first transmission.
  • the first transmission may comprise an indication (or in other words, indicator) indicating whether the second device 162 supports the 1SB modulation.
  • the second device 162 may explicitly indicate whether it supports the 1SB modulation or not via an indicator carried by the PDRCH transmission carrying the MSG1. No matter whether the second device 162 is with the device type A or the device type B, it may transmit the PDRCH carrying the MSG1 with the 2SB modulation, regardless of whether the 1SB modulation is supported by second device 162.
  • What kinds of indicators may be used to indicate whether the second device 162 supports the 1SB modulation may be considered.
  • a bit may be used to indicate whether the second device 162 supports the 1SB modulation or not.
  • a bit could be carried in the L1 control channel or higher layer signaling.
  • a value ‘0’ of the bit may mean that the second device 162 only supports the 2SB modulation
  • a value ‘1’ of the bit may mean that the second device 162 supports both the 2SB modulation and the 1SB modulation.
  • the indicator may further indicate a sideband (i.e., a preferred sideband) to be used for a subsequent transmission if the second device 162 supports the 1SB modulation.
  • 2 bits may be used to indicate whether the second device 162 supports the 1SB modulation and the preferred sideband for the subsequent PDRCH transmission if the second device 162 supports the 1SB modulation.
  • a value ‘00’ of the 2 bits may mean that the second device 162 only supports the 2SB modulation
  • a value ‘01’ may mean that the second device 162 supports the 1SB modulation and prefers the sideband with F c -FS X for the subsequent PDRCH transmission
  • a value ‘10’ may mean that the second device 162 supports the 1SB modulation and prefers the sideband with F c +FS X for the subsequent PDRCH transmission.
  • the first device 161 After receiving the first transmission from the second device 162 and determining the modulation capability of the second device 162 as described above, the first device 161 transmits (210) , to the second device 162, scheduling information for another transmission (also referred to as a second transmission) from the second device 162 to the first device 161.
  • the second device 162 then performs (215) the second transmission based on at least one of the scheduling information or whether the second device 162 supports the 1SB modulation.
  • the second transmission may comprise multiple types of transmissions and the scheduling information may comprise multiple types of information.
  • the scheduling information may be carried by a PRDCH carrying an MSG2 and the second transmission may comprise a PDRCH transmission carrying an MSG3.
  • the second transmission may also comprise any other types of transmissions and the scheduling information may also comprise any other types of information, and the scope of the present disclosure will not be limited in this regard.
  • the first device 161 may schedule the second transmission based on the modulation capability.
  • the first device 161 may schedule the PDRCH transmission carrying the MSG3 based on the reporting of whether the second device 162 supports the 1SB modulation.
  • the first device 161 may transmit a PRDCH carrying the MSG2 to schedule the PDRCH transmission carrying the MSG3 based on the reporting from the second device 162.
  • the following approaches may be considered for the scheduling of the second transmission.
  • an indication may be included in the scheduling information (such as the PRDCH carrying the MSG2 associated with the second device 162) to indicate whether the 1SB modulation is to be used for the second transmission (i.e., to indicate the corresponding modulation scheme, such as the 2SB modulation or the 1SB modulation for the PDRCH carrying the MSG3) .
  • the indicator may further indicate a sideband (i.e., a preferred sideband) to be used for the second transmission if the 1SB modulation is to be used for the second transmission.
  • a value of ‘00’ of the indicator may mean that the second device 162 should perform the second transmission (for example, transmit the PDRCH carrying the MSG3) with two sidebands
  • a value of ‘01’ of the indicator may mean that the second device 162 should perform the second transmission (for example, transmit the PDRCH carrying the MSG3) with one sideband
  • the sideband is F c -FS X
  • a value of ‘10’ of the indicator may mean that the second device 162 should perform the second transmission (for example, transmit the PDRCH carrying the MSG3) , and the sideband is F c +FS X .
  • no explicit indication regarding the modulation scheme to be used for the second transmission may be comprised in the scheduling information.
  • the second device 162 may perform the second transmission and the first device 161 may receive the second transmission based on the aligned understanding between the first device 161 and the second device 162.
  • the first device 161 may transmit the PRDCH carrying the MSG2 to schedule the PDRCH carrying the MSG3, and the second device 162 may transmit the PDRCH carrying the MSG3 with the 2SB modulation or the 1SB modulation based on the previous transmission or reporting from the second device 162.
  • the second device 162 may perform the second transmission with the 2SB modulation if it does not support the 1SB modulation. Accordingly, the first device 161 may determine that the 2SB modulation is used for the second transmission if it is indicated in the first transmission that the second device 162 does not support the 1SB modulation. In the embodiment where the second transmission comprises the MSG 3 transmission, if the second device 162 indicates that it only supports the 2SB modulation, it may transmit the PDRCH carrying the MSG3 with the 2SB modulation. As another example, the second device 162 may perform the second transmission with the 1SB modulation if it supports the 1SB modulation.
  • the first device 161 may determine that the 1SB modulation is used for the second transmission if it is indicated in the first transmission that the second device 162 supports the 1SB modulation.
  • the second transmission comprises the MSG 3 transmission
  • the second device 162 may transmit the PDRCH carrying the MSG3 with the 1SB modulation.
  • which sideband to be used for the second transmission may be determined in multiple ways as will be discussed below.
  • the sideband used for the second transmission may be determined as the same sideband as that used for the first transmission.
  • the sideband to be used to transmit the PDRCH carrying the MSG3 may be associated with the previous sideband used to transmit the PDRCH carrying the MSG1.
  • the second device 162 may transmit the PDRCH carrying the MSG1 with only one sideband, and the same sideband may be used to transmit the PDRCH carrying the MSG3.
  • the sideband used for the second transmission may be determined as the sideband indicated in the first transmission.
  • the sideband to be used to transmit the PDRCH carrying the MSG3 may be the same as the preferred sideband reported in the first transmission.
  • the sideband used for the second transmission may be determined based on a random ID associated with the second device 162 indicated in the first transmission.
  • the sideband to be used to transmit the PDRCH carrying the MSG3 may be associated with the random ID of the second device 162 transmitted in the MSG1.
  • the left sideband may be associated with an even random ID
  • the right sideband may be associated with an odd random ID.
  • FIG. 3 illustrates an example of a device 300 that supports sideband modulation of the A-IoT device in accordance with aspects of the present disclosure.
  • the device 300 may be an example of a first device 161 or a second device 162 as described herein.
  • the device 300 may support wireless communication with one or more other devices in the A-IoT system.
  • the device 300 may include components for bi-directional communications including components for transmitting and receiving communications, such as a processor 302, a memory 304, a transceiver 306, and, optionally, an I/O controller 308. These components may be in electronic communication or otherwise coupled (e.g., operatively, communicatively, functionally, electronically, electrically) via one or more interfaces (e.g., buses) .
  • the processor 302, the memory 304, the transceiver 306, or various combinations thereof or various components thereof may be examples of means for performing various aspects of the present disclosure as described herein.
  • the processor 302, the memory 304, the transceiver 306, or various combinations or components thereof may support a method for performing one or more of the operations described herein.
  • the processor 302, the memory 304, the transceiver 306, or various combinations or components thereof may be implemented in hardware (e.g., in communications management circuitry) .
  • the hardware may include a processor, a digital signal processor (DSP) , an application-specific integrated circuit (ASIC) , a field- programmable gate array (FPGA) or other programmable logic device, a discrete gate or transistor logic, discrete hardware components, or any combination thereof configured as or otherwise supporting a means for performing the functions described in the present disclosure.
  • the processor 302 and the memory 304 coupled with the processor 302 may be configured to perform one or more of the functions described herein (e.g., executing, by the processor 302, instructions stored in the memory 304) .
  • the processor 302 may support wireless communication at the device 300 in accordance with examples as disclosed herein.
  • the processor 302 may be configured to operable to support a means for receiving, from a second device, a first transmission, wherein whether the second device supports a single sideband (1SB) modulation is indicated based on the first transmission; a means for transmitting, to the second device, scheduling information for a second transmission from the second device; and a means for receiving, from the second device, the second transmission based on at least one of the scheduling information or whether the second device supports the 1SB modulation.
  • a means for receiving, from a second device, a first transmission, wherein whether the second device supports a single sideband (1SB) modulation is indicated based on the first transmission a means for transmitting, to the second device, scheduling information for a second transmission from the second device
  • a means for receiving, from the second device, the second transmission based on at least one of the scheduling information or whether the second device supports the 1SB modulation.
  • the processor 302 may be configured to operable to support a means for performing a first transmission to a first device, wherein whether the second device supports a single sideband (1SB) modulation is indicated based on the first transmission; a means for receiving, from the first device, scheduling information for the second transmission to the first device; and a means for performing the second transmission based on at least one of the scheduling information or whether the second device supports the 1SB modulation.
  • a means for performing a first transmission to a first device wherein whether the second device supports a single sideband (1SB) modulation is indicated based on the first transmission
  • a means for receiving, from the first device, scheduling information for the second transmission to the first device and a means for performing the second transmission based on at least one of the scheduling information or whether the second device supports the 1SB modulation.
  • the processor 302 may include an intelligent hardware device (e.g., a general-purpose processor, a DSP, a CPU, a microcontroller, an ASIC, an FPGA, a programmable logic device, a discrete gate or transistor logic component, a discrete hardware component, or any combination thereof) .
  • the processor 302 may be configured to operate a memory array using a memory controller.
  • a memory controller may be integrated into the processor 302.
  • the processor 302 may be configured to execute computer-readable instructions stored in a memory (e.g., the memory 304) to cause the device 300 to perform various functions of the present disclosure.
  • the memory 304 may include random access memory (RAM) and read-only memory (ROM) .
  • the memory 304 may store computer-readable, computer-executable code including instructions that, when executed by the processor 302 cause the device 300 to perform various functions described herein.
  • the code may be stored in a non-transitory computer-readable medium such as system memory or another type of memory.
  • the code may not be directly executable by the processor 302 but may cause a computer (e.g., when compiled and executed) to perform functions described herein.
  • the memory 304 may include, among other things, a basic I/O system (BIOS) which may control basic hardware or software operation such as the interaction with peripheral components or devices.
  • BIOS basic I/O system
  • the I/O controller 308 may manage input and output signals for the device 300.
  • the I/O controller 308 may also manage peripherals not integrated into the device M02.
  • the I/O controller 308 may represent a physical connection or port to an external peripheral.
  • the I/O controller 308 may utilize an operating system such as or another known operating system.
  • the I/O controller 308 may be implemented as part of a processor, such as the processor 302.
  • a user may interact with the device 300 via the I/O controller 308 or via hardware components controlled by the I/O controller 308.
  • the device 300 may include a single antenna 310. However, in some other implementations, the device 300 may have more than one antenna 310 (i.e., multiple antennas) , including multiple antenna panels or antenna arrays, which may be capable of concurrently transmitting or receiving multiple wireless transmissions.
  • the transceiver 306 may communicate bi-directionally, via the one or more antennas 310, wired, or wireless links as described herein.
  • the transceiver 306 may represent a wireless transceiver and may communicate bi-directionally with another wireless transceiver.
  • the transceiver 306 may also include a modem to modulate the packets, to provide the modulated packets to one or more antennas 310 for transmission, and to demodulate packets received from the one or more antennas 310.
  • the transceiver 306 may include one or more transmit chains, one or more receive chains, or a combination thereof.
  • a transmit chain may be configured to generate and transmit signals (e.g., control information, data, packets) .
  • the transmit chain may include at least one modulator for modulating data onto a carrier signal, preparing the signal for transmission over a wireless medium.
  • the at least one modulator may be configured to support one or more techniques such as amplitude modulation (AM) , frequency modulation (FM) , or digital modulation schemes like phase-shift keying (PSK) or quadrature amplitude modulation (QAM) .
  • the transmit chain may also include at least one power amplifier configured to amplify the modulated signal to an appropriate power level suitable for transmission over the wireless medium.
  • the transmit chain may also include one or more antennas 310 for transmitting the amplified signal into the air or wireless medium.
  • a receive chain may be configured to receive signals (e.g., control information, data, packets) over a wireless medium.
  • the receive chain may include one or more antennas 310 for receive the signal over the air or wireless medium.
  • the receive chain may include at least one amplifier (e.g., a low-noise amplifier (LNA) ) configured to amplify the received signal.
  • the receive chain may include at least one demodulator configured to demodulate the receive signal and obtain the transmitted data by reversing the modulation technique applied during transmission of the signal.
  • the receive chain may include at least one decoder for decoding the processing the demodulated signal to receive the transmitted data.
  • FIG. 4 illustrates an example of a processor 400 that supports sideband modulation of the A-IoT device in accordance with aspects of the present disclosure.
  • the processor 400 may be an example of a processor configured to perform various operations in accordance with examples as described herein.
  • the processor 400 may include a controller 402 configured to perform various operations in accordance with examples as described herein.
  • the processor 400 may optionally include at least one memory 404, such as L1/L2/L3 cache. Additionally, or alternatively, the processor 400 may optionally include one or more arithmetic-logic units (ALUs) 406.
  • ALUs arithmetic-logic units
  • the processor 400 may be a processor chipset and include a protocol stack (e.g., a software stack) executed by the processor chipset to perform various operations (e.g., receiving, obtaining, retrieving, transmitting, outputting, forwarding, storing, determining, identifying, accessing, writing, reading) in accordance with examples as described herein.
  • a protocol stack e.g., a software stack
  • operations e.g., receiving, obtaining, retrieving, transmitting, outputting, forwarding, storing, determining, identifying, accessing, writing, reading
  • the processor chipset may include one or more cores, one or more caches (e.g., memory local to or included in the processor chipset (e.g., the processor 400) or other memory (e.g., random access memory (RAM) , read-only memory (ROM) , dynamic RAM (DRAM) , synchronous dynamic RAM (SDRAM) , static RAM (SRAM) , ferroelectric RAM (FeRAM) , magnetic RAM (MRAM) , resistive RAM (RRAM) , flash memory, phase change memory (PCM) , and others) .
  • RAM random access memory
  • ROM read-only memory
  • DRAM dynamic RAM
  • SDRAM synchronous dynamic RAM
  • SRAM static RAM
  • FeRAM ferroelectric RAM
  • MRAM magnetic RAM
  • RRAM resistive RAM
  • PCM phase change memory
  • the controller 402 may be configured to manage and coordinate various operations (e.g., signaling, receiving, obtaining, retrieving, transmitting, outputting, forwarding, storing, determining, identifying, accessing, writing, reading) of the processor 400 to cause the processor 400 to support various operations in accordance with examples as described herein.
  • the controller 402 may operate as a control unit of the processor 400, generating control signals that manage the operation of various components of the processor 400. These control signals include enabling or disabling functional units, selecting data paths, initiating memory access, and coordinating timing of operations.
  • the controller 402 may be configured to fetch (e.g., obtain, retrieve, receive) instructions from the memory 404 and determine subsequent instruction (s) to be executed to cause the processor 400 to support various operations in accordance with examples as described herein.
  • the controller 402 may be configured to track memory address of instructions associated with the memory 404.
  • the controller 402 may be configured to decode instructions to determine the operation to be performed and the operands involved.
  • the controller 402 may be configured to interpret the instruction and determine control signals to be output to other components of the processor 400 to cause the processor 400 to support various operations in accordance with examples as described herein.
  • the controller 402 may be configured to manage flow of data within the processor 400.
  • the controller 402 may be configured to control transfer of data between registers, arithmetic logic units (ALUs) , and other functional units of the processor 400.
  • ALUs arithmetic logic units
  • the memory 404 may include one or more caches (e.g., memory local to or included in the processor 400 or other memory, such RAM, ROM, DRAM, SDRAM, SRAM, MRAM, flash memory, etc. In some implementations, the memory 404 may reside within or on a processor chipset (e.g., local to the processor 400) . In some other implementations, the memory 404 may reside external to the processor chipset (e.g., remote to the processor 400) .
  • caches e.g., memory local to or included in the processor 400 or other memory, such RAM, ROM, DRAM, SDRAM, SRAM, MRAM, flash memory, etc.
  • the memory 404 may reside within or on a processor chipset (e.g., local to the processor 400) . In some other implementations, the memory 404 may reside external to the processor chipset (e.g., remote to the processor 400) .
  • the one or more ALUs 406 may be configured to support various operations in accordance with examples as described herein.
  • the one or more ALUs 406 may reside within or on a processor chipset (e.g., the processor 400) .
  • the one or more ALUs 406 may reside external to the processor chipset (e.g., the processor 400) .
  • One or more ALUs 406 may perform one or more computations such as addition, subtraction, multiplication, and division on data.
  • one or more ALUs 406 may receive input operands and an operation code, which determines an operation to be executed.
  • One or more ALUs 406 be configured with a variety of logical and arithmetic circuits, including adders, subtractors, shifters, and logic gates, to process and manipulate the data according to the operation. Additionally, or alternatively, the one or more ALUs 406 may support logical operations such as AND, OR, exclusive-OR (XOR) , not-OR (NOR) , and not-AND (NAND) , enabling the one or more ALUs 406 to handle conditional operations, comparisons, and bitwise operations.
  • logical operations such as AND, OR, exclusive-OR (XOR) , not-OR (NOR) , and not-AND (NAND) , enabling the one or more ALUs 406 to handle conditional operations, comparisons, and bitwise operations.
  • the processor 400 may support wireless communication in accordance with examples as disclosed herein.
  • the processor 400 may be configured to or operable to support a means for receiving, from a second device, a first transmission, wherein whether the second device supports a single sideband (1SB) modulation is indicated based on the first transmission; a means for transmitting, to the second device, scheduling information for a second transmission from the second device; and a means for receiving, from the second device, the second transmission based on at least one of the scheduling information or whether the second device supports the 1SB modulation.
  • a means for receiving, from a second device, a first transmission, wherein whether the second device supports a single sideband (1SB) modulation is indicated based on the first transmission a means for transmitting, to the second device, scheduling information for a second transmission from the second device
  • a means for receiving, from the second device, the second transmission based on at least one of the scheduling information or whether the second device supports the 1SB modulation.
  • the processor 400 may be configured to or operable to support a means for performing a first transmission to a first device, wherein whether the second device supports a single sideband (1SB) modulation is indicated based on the first transmission; a means for receiving, from the first device, scheduling information for the second transmission to the first device; and a means for performing the second transmission based on at least one of the scheduling information or whether the second device supports the 1SB modulation.
  • a means for performing a first transmission to a first device wherein whether the second device supports a single sideband (1SB) modulation is indicated based on the first transmission
  • a means for receiving, from the first device, scheduling information for the second transmission to the first device and a means for performing the second transmission based on at least one of the scheduling information or whether the second device supports the 1SB modulation.
  • FIG. 5 illustrates a flowchart of a method 500 that supports sideband modulation of the A-IoT device in accordance with aspects of the present disclosure.
  • the operations of the method 500 may be implemented by a device or its components as described herein.
  • the operations of the method 500 may be performed by a first device 151 as described herein.
  • the device may execute a set of instructions to control the function elements of the device to perform the described functions. Additionally, or alternatively, the device may perform aspects of the described functions using special-purpose hardware.
  • the method may include receiving, from a second device, a first transmission, wherein whether the second device supports a single sideband (1SB) modulation is indicated based on the first transmission.
  • the operations of 510 may be performed in accordance with examples as described herein. In some implementations, aspects of the operations of 510 may be performed by a first device 161 as described with reference to FIG. 1F.
  • the method may include transmitting, to the second device, scheduling information for a second transmission from the second device.
  • the operations of 520 may be performed in accordance with examples as described herein. In some implementations, aspects of the operations of 520 may be performed by a first device 161 as described with reference to FIG. 1F.
  • the method may include receiving, from the second device, the second transmission based on at least one of the scheduling information or whether the second device supports the 1SB modulation.
  • the operations of 530 may be performed in accordance with examples as described herein. In some implementations, aspects of the operations of 530 may be performed by a first device 161 as described with reference to FIG. 1F.
  • the method may include performing a first transmission to a first device, wherein whether the second device supports a single sideband (1SB) modulation is indicated based on the first transmission.
  • the operations of 610 may be performed in accordance with examples as described herein. In some implementations, aspects of the operations of 610 may be performed by a second device 162 with reference to FIG. 1F.
  • the method may include receiving, from the first device, scheduling information for the second transmission to the first device.
  • the operations of 620 may be performed in accordance with examples as described herein. In some implementations, aspects of the operations of 620 may be performed by a second device 162 with reference to FIG. 1F.
  • the method may include performing the second transmission based on at least one of the scheduling information or whether the second device supports the 1SB modulation.
  • the operations of 630 may be performed in accordance with examples as described herein. In some implementations, aspects of the operations of 630 may be performed by a second device 162 with reference to FIG. 1F.
  • a general-purpose processor may be a microprocessor, but in the alternative, the processor may be any processor, controller, microcontroller, or state machine.
  • a processor may also be implemented as a combination of computing devices (e.g., a combination of a DSP and a microprocessor, multiple microprocessors, one or more microprocessors in conjunction with a DSP core, or any other such configuration.
  • the functions described herein may be implemented in hardware, software executed by a processor, firmware, or any combination thereof. If implemented in software executed by a processor, the functions may be stored on or transmitted over as one or more instructions or code on a computer-readable medium. Other examples and implementations are within the scope of the disclosure and appended claims. For example, due to the nature of software, functions described herein may be implemented using software executed by a processor, hardware, firmware, hardwiring, or combinations of any of these. Features implementing functions may also be physically located at various positions, including being distributed such that portions of functions are implemented at different physical locations.
  • Computer-readable media includes both non-transitory computer storage media and communication media including any medium that facilitates transfer of a computer program from one place to another.
  • a non-transitory storage medium may be any available medium that may be accessed by a general-purpose or special-purpose computer.
  • non-transitory computer-readable media may include RAM, ROM, electrically erasable programmable ROM (EEPROM) , flash memory, compact disk (CD) ROM or other optical disk storage, magnetic disk storage or other magnetic storage devices, or any other non-transitory medium that may be used to carry or store desired program code means in the form of instructions or data structures and that may be accessed by a general-purpose or special-purpose computer, or a general-purpose or special-purpose processor.
  • an article “a” before an element is unrestricted and understood to refer to “at least one” of those elements or “one or more” of those elements.
  • the terms “a, ” “at least one, ” “one or more, ” and “at least one of one or more” may be interchangeable.
  • a list of items indicates an inclusive list such that, for example, a list of at least one of A, B, or C means A or B or C or AB or AC or BC or ABC (i.e., A and B and C) .
  • the phrase “based on” shall not be construed as a reference to a closed set of conditions. For example, an example step that is described as “based on condition A” may be based on both a condition A and a condition B without departing from the scope of the present disclosure.
  • the phrase “based on” shall be construed in the same manner as the phrase “based at least in part on.
  • a “set” may include one or more elements.

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  • Computer Networks & Wireless Communication (AREA)
  • Mobile Radio Communication Systems (AREA)

Abstract

Divers aspects de la présente divulgation concernent la modulation à bande latérale d'un dispositif de l'Internet des objets ambiant (A-IoT). Selon un aspect, un premier dispositif (par exemple, un lecteur) reçoit une première transmission depuis un second dispositif (par exemple, un dispositif A-IoT). La première transmission indique si le second dispositif prend en charge une modulation à bande latérale unique (1SB). De plus, le premier dispositif transmet au second dispositif des informations de planification pour une seconde transmission entre le second dispositif et la première transmission. De plus, le premier dispositif reçoit la seconde transmission depuis le second dispositif sur la base des informations de planification et/ou de la prise en charge par le second dispositif de la modulation 1SB. De cette manière, il est possible d'améliorer efficacement les performances de communication.
PCT/CN2024/130573 2024-11-07 2024-11-07 Modulation à bande latérale d'un dispositif iot Pending WO2025189793A1 (fr)

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