US20230276364A1 - Sidelink discontinuous reception configuration - Google Patents

Sidelink discontinuous reception configuration Download PDF

Info

Publication number
US20230276364A1
US20230276364A1 US18/016,052 US202118016052A US2023276364A1 US 20230276364 A1 US20230276364 A1 US 20230276364A1 US 202118016052 A US202118016052 A US 202118016052A US 2023276364 A1 US2023276364 A1 US 2023276364A1
Authority
US
United States
Prior art keywords
sidelink
discontinuous reception
reception configuration
user equipment
duration
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
US18/016,052
Other languages
English (en)
Inventor
Prateek Basu Mallick
Karthikeyan Ganesan
Joachim Loehr
Dimitrios Karampatsis
Ravi Kuchibhotla
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 Singapore Pte Ltd
Original Assignee
Lenovo Singapore Pte 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 Singapore Pte Ltd filed Critical Lenovo Singapore Pte Ltd
Priority to US18/016,052 priority Critical patent/US20230276364A1/en
Assigned to LENOVO (SINGAPORE) PTE. LTD. reassignment LENOVO (SINGAPORE) PTE. LTD. ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: KARAMPATSIS, DIMITRIOS, BASU MALLICK, PRATEEK, LOEHR, JOACHIM, GANESAN, KARTHIKEYAN, KUCHIBHOTLA, RAVI
Publication of US20230276364A1 publication Critical patent/US20230276364A1/en
Pending legal-status Critical Current

Links

Images

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W52/00—Power management, e.g. TPC [Transmission Power Control], power saving or power classes
    • H04W52/02—Power saving arrangements
    • H04W52/0209—Power saving arrangements in terminal devices
    • H04W52/0225—Power saving arrangements in terminal devices using monitoring of external events, e.g. the presence of a signal
    • H04W52/0245—Power saving arrangements in terminal devices using monitoring of external events, e.g. the presence of a signal according to signal strength
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W52/00—Power management, e.g. TPC [Transmission Power Control], power saving or power classes
    • H04W52/02—Power saving arrangements
    • H04W52/0209—Power saving arrangements in terminal devices
    • H04W52/0225—Power saving arrangements in terminal devices using monitoring of external events, e.g. the presence of a signal
    • H04W52/0235—Power saving arrangements in terminal devices using monitoring of external events, e.g. the presence of a signal where the received signal is a power saving command
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00—Arrangements for detecting or preventing errors in the information received
    • H04L1/12—Arrangements for detecting or preventing errors in the information received by using return channel
    • H04L1/16—Arrangements for detecting or preventing errors in the information received by using return channel in which the return channel carries supervisory signals, e.g. repetition request signals
    • H04L1/18—Automatic repetition systems, e.g. Van Duuren systems
    • H04L1/1812—Hybrid protocols; Hybrid automatic repeat request [HARQ]
    • 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 signaling, i.e. of overhead other than pilot signals
    • H04L5/0055—Physical resource allocation for ACK/NACK
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W28/00—Network traffic management; Network resource management
    • H04W28/02—Traffic management, e.g. flow control or congestion control
    • H04W28/0268—Traffic management, e.g. flow control or congestion control using specific QoS parameters for wireless networks, e.g. QoS class identifier [QCI] or guaranteed bit rate [GBR]
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W52/00—Power management, e.g. TPC [Transmission Power Control], power saving or power classes
    • H04W52/02—Power saving arrangements
    • H04W52/0209—Power saving arrangements in terminal devices
    • H04W52/0212—Power saving arrangements in terminal devices managed by the network, e.g. network or access point is master and terminal is slave
    • H04W52/0216—Power saving arrangements in terminal devices managed by the network, e.g. network or access point is master and terminal is slave using a pre-established activity schedule, e.g. traffic indication frame
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/04—Wireless resource allocation
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/20—Control channels or signalling for resource management
    • H04W72/23—Control channels or signalling for resource management in the downlink direction of a wireless link, i.e. towards a terminal
    • H04W72/232—Control channels or signalling for resource management in the downlink direction of a wireless link, i.e. towards a terminal the control data signalling from the physical layer, e.g. DCI signalling
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/20—Control channels or signalling for resource management
    • H04W72/25—Control channels or signalling for resource management between terminals via a wireless link, e.g. sidelink
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/40—Resource management for direct mode communication, e.g. D2D or sidelink
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W76/00—Connection management
    • H04W76/10—Connection setup
    • H04W76/14—Direct-mode setup
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W76/00—Connection management
    • H04W76/20—Manipulation of established connections
    • H04W76/28—Discontinuous transmission [DTX]; Discontinuous reception [DRX]
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00—Arrangements for detecting or preventing errors in the information received
    • H04L1/12—Arrangements for detecting or preventing errors in the information received by using return channel
    • H04L1/16—Arrangements for detecting or preventing errors in the information received by using return channel in which the return channel carries supervisory signals, e.g. repetition request signals
    • H04L1/18—Automatic repetition systems, e.g. Van Duuren systems
    • H04L1/1867—Arrangements specially adapted for the transmitter end
    • H04L1/188—Time-out mechanisms
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W88/00—Devices specially adapted for wireless communication networks, e.g. terminals, base stations or access point devices
    • H04W88/02—Terminal devices
    • H04W88/04—Terminal devices adapted for relaying to or from another terminal or user
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W92/00—Interfaces specially adapted for wireless communication networks
    • H04W92/16—Interfaces between hierarchically similar devices
    • H04W92/18—Interfaces between hierarchically similar devices between terminal devices
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
    • Y02D30/00—Reducing energy consumption in communication networks
    • Y02D30/70—Reducing energy consumption in communication networks in wireless communication networks

Definitions

  • the subject matter disclosed herein relates generally to wireless communications and more particularly relates to sidelink discontinuous reception configuration.
  • a configuration for sidelink discontinuous reception may be inefficient.
  • a sidelink discontinuous reception configuration may be updated and/or provided to a user equipment.
  • One embodiment of a method includes accessing a sidelink discontinuous reception configuration.
  • the sidelink discontinuous reception configuration corresponds to: a quality of service class; an identifier of the quality of service class; at least one attribute of the quality of service class; a range corresponding to the at least one attribute of the quality of service class; or some combination thereof.
  • the method includes performing sidelink communication based on the sidelink discontinuous reception configuration.
  • One apparatus for sidelink discontinuous reception configuration includes a processor that: accesses a sidelink discontinuous reception configuration, wherein the sidelink discontinuous reception configuration corresponds to: a quality of service class; an identifier of the quality of service class; at least one attribute of the quality of service class; a range corresponding to the at least one attribute of the quality of service class; or some combination thereof; and performs sidelink communication based on the sidelink discontinuous reception configuration.
  • Another embodiment of a method for sidelink discontinuous reception configuration includes determining, at a first user equipment, at least one parameter for a sidelink discontinuous reception configuration. In some embodiments, the method includes transmitting the at least one parameter for the sidelink discontinuous reception configuration to a second user equipment. In certain embodiments, the method includes receiving feedback from the second user equipment indicating acceptance of the at least one parameter for the sidelink discontinuous reception configuration.
  • Another apparatus for sidelink discontinuous reception configuration includes a first user equipment.
  • the apparatus includes a processor that determines at least one parameter for a sidelink discontinuous reception configuration.
  • the apparatus includes a transmitter that transmits the at least one parameter for the sidelink discontinuous reception configuration to a second user equipment.
  • the apparatus includes a receiver that receives feedback from the second user equipment indicating acceptance of the at least one parameter for the sidelink discontinuous reception configuration.
  • a method for sidelink discontinuous reception configuration includes accessing a sidelink discontinuous reception configuration.
  • the sidelink discontinuous reception configuration includes a first offset for an on-duration, an on-duration timer, and a periodicity.
  • the method includes determining a second offset for the on-duration.
  • the method includes transmitting data based on the sidelink discontinuous reception configuration and the second offset for the on-duration.
  • Yet another apparatus for sidelink discontinuous reception configuration includes a processor that: accesses a sidelink discontinuous reception configuration, wherein the sidelink discontinuous reception configuration comprises a first offset for an on-duration, an on-duration timer, and a periodicity; and determines a second offset for the on-duration.
  • the apparatus includes a transmitter that transmits data based on the sidelink discontinuous reception configuration and the second offset for the on-duration.
  • a further embodiment of a method for sidelink discontinuous reception configuration includes accessing a sidelink discontinuous reception configuration.
  • the sidelink discontinuous reception configuration includes an offset for an on-duration, an on-duration timer, and a periodicity.
  • the method includes transmitting sidelink data, receiving the sidelink data, or a combination thereof.
  • the method includes, in response to transmitting the sidelink data, receiving the sidelink data, or a combination thereof, starting a sidelink inactivity timer.
  • the method includes restarting the sidelink inactivity timer in response to: indicating a negative acknowledgement on a physical uplink control channel to request a retransmission grant to a base station; indicating an acknowledgement on the physical uplink control channel and in response to having a non-empty sidelink buffer to the base station; receiving hybrid automatic repeat request feedback on a physical sidelink feedback channel from a sidelink receiver user equipment; transmitting a sidelink scheduling request to a base station; transmitting a sidelink buffer status report to the base station; requesting a channel state information report on sidelink from a peer user equipment; receiving a request for a channel state information report on sidelink from a peer user equipment; receiving sidelink control information from the sidelink transmitter user equipment; receiving data from the sidelink transmitter user equipment; transmitting a physical sidelink feedback channel negative acknowledgement feedback to the sidelink transmitter user equipment; transmitting sidelink control information requesting sidelink physical sidelink feedback channel feedback; transmitting non-last sidelink control information while performing blind re-transmissions; transmitting non
  • a further apparatus for sidelink discontinuous reception configuration includes a processor that accesses a sidelink discontinuous reception configuration.
  • the sidelink discontinuous reception configuration includes an offset for an on-duration, an on-duration timer, and a periodicity.
  • the apparatus includes a transmitter.
  • the apparatus includes a receiver. The transmitter transmits sidelink data, the receiver receives the sidelink data, or a combination thereof. In response to the transmitter transmitting sidelink data, the receiver receiving the sidelink data, or a combination thereof, the processor starts a sidelink inactivity timer.
  • the processor restarts the sidelink inactivity timer in response to: indicating a negative acknowledgement on a physical uplink control channel to request a retransmission grant to a base station; indicating an acknowledgement on the physical uplink control channel and in response to having a non-empty sidelink buffer to the base station; receiving hybrid automatic repeat request feedback on a physical sidelink feedback channel from a sidelink receiver user equipment; transmitting a sidelink scheduling request to a base station; transmitting a sidelink buffer status report to the base station; requesting a channel state information report on sidelink from a peer user equipment; receiving a request for a channel state information report on sidelink from a peer user equipment; receiving sidelink control information from the sidelink transmitter user equipment; receiving data from the sidelink transmitter user equipment; transmitting a physical sidelink feedback channel negative acknowledgement feedback to the sidelink transmitter user equipment; transmitting sidelink control information requesting sidelink physical sidelink feedback channel feedback; transmitting non-last sidelink control information while performing blind re-transmissions; transmitting non-last data while performing
  • FIG. 1 is a schematic block diagram illustrating one embodiment of a wireless communication system for sidelink discontinuous reception configuration
  • FIG. 2 is a schematic block diagram illustrating one embodiment of an apparatus that may be used for sidelink discontinuous reception configuration
  • FIG. 3 is a schematic block diagram illustrating one embodiment of an apparatus that may be used for sidelink discontinuous reception configuration
  • FIG. 4 is a timing diagram illustrating one embodiment of a SL DRX configuration
  • FIG. 5 is a timing diagram illustrating one embodiment of two SL DRX configurations corresponding to a first PQI range and a second PQI range;
  • FIG. 6 is a network communications diagram illustrating one embodiment of a negotiation of SL DRX configuration for unicast communication
  • FIG. 7 is a network communications diagram illustrating one embodiment of a negotiation of SL DRX configuration for groupcast communication
  • FIG. 8 is a network communications diagram illustrating one embodiment of Uu negotiation to align Uu and SL DRX;
  • FIG. 9 is a timing diagram illustrating one embodiment of SL DRX interplay with timers
  • FIG. 10 is a flow chart diagram illustrating one embodiment of a method for sidelink discontinuous reception configuration
  • FIG. 11 is a flow chart diagram illustrating another embodiment of a method for sidelink discontinuous reception configuration
  • FIG. 12 is a flow chart diagram illustrating yet another embodiment of a method for sidelink discontinuous reception configuration.
  • FIG. 13 is a flow chart diagram illustrating a further embodiment of a method for sidelink discontinuous reception configuration.
  • embodiments may be embodied as a system, apparatus, method, or program product. Accordingly, embodiments may take the form of an entirely hardware embodiment, an entirely software embodiment (including firmware, resident software, micro-code, etc.) or an embodiment combining software and hardware aspects that may all generally be referred to herein as a “circuit,” “module” or “system.” Furthermore, embodiments may take the form of a program product embodied in one or more computer readable storage devices storing machine readable code, computer readable code, and/or program code, referred hereafter as code. The storage devices may be tangible, non-transitory, and/or non-transmission. The storage devices may not embody signals. In a certain embodiment, the storage devices only employ signals for accessing code.
  • modules may be implemented as a hardware circuit comprising custom very-large-scale integration (“VLSI”) circuits or gate arrays, off-the-shelf semiconductors such as logic chips, transistors, or other discrete components.
  • VLSI very-large-scale integration
  • a module may also be implemented in programmable hardware devices such as field programmable gate arrays, programmable array logic, programmable logic devices or the like.
  • Modules may also be implemented in code and/or software for execution by various types of processors.
  • An identified module of code may, for instance, include one or more physical or logical blocks of executable code which may, for instance, be organized as an object, procedure, or function. Nevertheless, the executables of an identified module need not be physically located together, but may include disparate instructions stored in different locations which, when joined logically together, include the module and achieve the stated purpose for the module.
  • a module of code may be a single instruction, or many instructions, and may even be distributed over several different code segments, among different programs, and across several memory devices.
  • operational data may be identified and illustrated herein within modules, and may be embodied in any suitable form and organized within any suitable type of data structure. The operational data may be collected as a single data set, or may be distributed over different locations including over different computer readable storage devices.
  • the software portions are stored on one or more computer readable storage devices.
  • the computer readable medium may be a computer readable storage medium.
  • the computer readable storage medium may be a storage device storing the code.
  • the storage device may be, for example, but not limited to, an electronic, magnetic, optical, electromagnetic, infrared, holographic, micromechanical, or semiconductor system, apparatus, or device, or any suitable combination of the foregoing.
  • a storage device More specific examples (a non-exhaustive list) of the storage device would include the following: an electrical connection having one or more wires, a portable computer diskette, a hard disk, a random access memory (“RAM”), a read-only memory (“ROM”), an erasable programmable read-only memory (“EPROM” or Flash memory), a portable compact disc read-only memory (“CD-ROM”), an optical storage device, a magnetic storage device, or any suitable combination of the foregoing.
  • a computer readable storage medium may be any tangible medium that can contain, or store a program for use by or in connection with an instruction execution system, apparatus, or device.
  • Code for carrying out operations for embodiments may be any number of lines and may be written in any combination of one or more programming languages including an object oriented programming language such as Python, Ruby, Java, Smalltalk, C++, or the like, and conventional procedural programming languages, such as the “C” programming language, or the like, and/or machine languages such as assembly languages.
  • the code may execute entirely on the user's computer, partly on the user's computer, as a stand-alone software package, partly on the user's computer and partly on a remote computer or entirely on the remote computer or server.
  • the remote computer may be connected to the user's computer through any type of network, including a local area network (“LAN”) or a wide area network (“WAN”), or the connection may be made to an external computer (for example, through the Internet using an Internet Service Provider).
  • LAN local area network
  • WAN wide area network
  • Internet Service Provider an Internet Service Provider
  • the code may also be stored in a storage device that can direct a computer, other programmable data processing apparatus, or other devices to function in a particular manner, such that the instructions stored in the storage device produce an article of manufacture including instructions which implement the function/act specified in the schematic flowchart diagrams and/or schematic block diagrams block or blocks.
  • the code may also be loaded onto a computer, other programmable data processing apparatus, or other devices to cause a series of operational steps to be performed on the computer, other programmable apparatus or other devices to produce a computer implemented process such that the code which execute on the computer or other programmable apparatus provide processes for implementing the functions/acts specified in the flowchart and/or block diagram block or blocks.
  • each block in the schematic flowchart diagrams and/or schematic block diagrams may represent a module, segment, or portion of code, which includes one or more executable instructions of the code for implementing the specified logical function(s).
  • FIG. 1 depicts an embodiment of a wireless communication system 100 for sidelink discontinuous reception configuration.
  • the wireless communication system 100 includes remote units 102 and network units 104 . Even though a specific number of remote units 102 and network units 104 are depicted in FIG. 1 , one of skill in the art will recognize that any number of remote units 102 and network units 104 may be included in the wireless communication system 100 .
  • the remote units 102 may include computing devices, such as desktop computers, laptop computers, personal digital assistants (“PDAs”), tablet computers, smart phones, smart televisions (e.g., televisions connected to the Internet), set-top boxes, game consoles, security systems (including security cameras), vehicle on-board computers, network devices (e.g., routers, switches, modems), aerial vehicles, drones, or the like.
  • the remote units 102 include wearable devices, such as smart watches, fitness bands, optical head-mounted displays, or the like.
  • the remote units 102 may be referred to as subscriber units, mobiles, mobile stations, users, terminals, mobile terminals, fixed terminals, subscriber stations, UE, user terminals, a device, or by other terminology used in the art.
  • the remote units 102 may communicate directly with one or more of the network units 104 via UL communication signals. In certain embodiments, the remote units 102 may communicate directly with other remote units 102 via sidelink communication.
  • the network units 104 may be distributed over a geographic region.
  • a network unit 104 may also be referred to and/or may include one or more of an access point, an access terminal, a base, a base station, a location server, a core network (“CN”), a radio network entity, a Node-B, an evolved node-B (“eNB”), a 5G node-B (“gNB”), a Home Node-B, a relay node, a device, a core network, an aerial server, a radio access node, an access point (“AP”), new radio (“NR”), a network entity, an access and mobility management function (“AMF”), a unified data management (“UDM”), a unified data repository (“UDR”), a UDM/UDR, a policy control function (“PCF”), a radio access network (“RAN”), a network slice selection function (“NSSF”), an operations, administration, and management (“OAM”), a session management function (“SMF”), a user
  • the network units 104 are generally part of a radio access network that includes one or more controllers communicably coupled to one or more corresponding network units 104 .
  • the radio access network is generally communicably coupled to one or more core networks, which may be coupled to other networks, like the Internet and public switched telephone networks, among other networks. These and other elements of radio access and core networks are not illustrated but are well known generally by those having ordinary skill in the art.
  • the wireless communication system 100 is compliant with NR protocols standardized in third generation partnership project (“3GPP”), wherein the network unit 104 transmits using an OFDM modulation scheme on the downlink (“DL”) and the remote units 102 transmit on the uplink (“UL”) using a single-carrier frequency division multiple access (“SC-FDMA”) scheme or an orthogonal frequency division multiplexing (“OFDM”) scheme.
  • 3GPP third generation partnership project
  • SC-FDMA single-carrier frequency division multiple access
  • OFDM orthogonal frequency division multiplexing
  • the wireless communication system 100 may implement some other open or proprietary communication protocol, for example, WiMAX, institute of electrical and electronics engineers (“IEEE”) 802.11 variants, global system for mobile communications (“GSM”), general packet radio service (“GPRS”), universal mobile telecommunications system (“UMTS”), long term evolution (“LTE”) variants, code division multiple access 2000 (“CDMA2000”), Bluetooth®, ZigBee, Sigfoxx, among other protocols.
  • WiMAX institute of electrical and electronics engineers
  • IEEE institute of electrical and electronics engineers
  • GSM global system for mobile communications
  • GPRS general packet radio service
  • UMTS universal mobile telecommunications system
  • LTE long term evolution
  • CDMA2000 code division multiple access 2000
  • Bluetooth® ZigBee
  • ZigBee ZigBee
  • Sigfoxx among other protocols.
  • the network units 104 may serve a number of remote units 102 within a serving area, for example, a cell or a cell sector via a wireless communication link.
  • the network units 104 transmit DL communication signals to serve the remote units 102 in the time, frequency, and/or spatial domain.
  • a remote unit 102 may access a sidelink discontinuous reception configuration.
  • the sidelink discontinuous reception configuration corresponds to: a quality of service class; an identifier of the quality of service class; at least one attribute of the quality of service class; a range corresponding to the at least one attribute of the quality of service class; or some combination thereof.
  • the remote unit 102 may perform sidelink communication based on the sidelink discontinuous reception configuration. Accordingly, the remote unit 102 may be used for sidelink discontinuous reception configuration.
  • a remote unit 102 may determine, at a first user equipment, at least one parameter for a sidelink discontinuous reception configuration. In some embodiments, the remote unit 102 may transmit the at least one parameter for the sidelink discontinuous reception configuration to a second user equipment. In certain embodiments, the remote unit 102 may receive feedback from the second user equipment indicating acceptance of the at least one parameter for the sidelink discontinuous reception configuration. Accordingly, the remote unit 102 may be used for sidelink discontinuous reception configuration.
  • a remote unit 102 may access a sidelink discontinuous reception configuration.
  • the sidelink discontinuous reception configuration includes a first offset for an on-duration, an on-duration timer, and a periodicity.
  • the remote unit 102 may determine a second offset for the on-duration.
  • the remote unit 102 may transmit data based on the sidelink discontinuous reception configuration and the second offset for the on-duration. Accordingly, the remote unit 102 may be used for sidelink discontinuous reception configuration.
  • a remote unit 102 may access a sidelink discontinuous reception configuration.
  • the sidelink discontinuous reception configuration includes an offset for an on-duration, an on-duration timer, and a periodicity.
  • the remote unit 102 may transmit sidelink data, receive the sidelink data, or a combination thereof.
  • the remote unit 102 may, in response to transmitting the sidelink data, receiving the sidelink data, or a combination thereof, start a sidelink inactivity timer.
  • the remote unit 102 may restart the sidelink inactivity timer in response to: indicating a negative acknowledgement on a physical uplink control channel to request a retransmission grant to a base station; indicating an acknowledgement on the physical uplink control channel and in response to having a non-empty sidelink buffer to the base station; receiving hybrid automatic repeat request feedback on a physical sidelink feedback channel from a sidelink receiver user equipment; transmitting a sidelink scheduling request to a base station; transmitting a sidelink buffer status report to the base station; requesting a channel state information report on sidelink from a peer user equipment; receiving a request for a channel state information report on sidelink from a peer user equipment; receiving sidelink control information from the sidelink transmitter user equipment; receiving data from the sidelink transmitter user equipment; transmitting a physical sidelink feedback channel negative acknowledgement feedback to the sidelink transmitter user equipment; transmitting sidelink control information requesting sidelink physical sidelink feedback channel feedback; transmitting non-last sidelink control information while performing blind re-transmissions; transmit
  • FIG. 2 depicts one embodiment of an apparatus 200 that may be used for sidelink discontinuous reception configuration.
  • the apparatus 200 includes one embodiment of the remote unit 102 .
  • the remote unit 102 may include a processor 202 , a memory 204 , an input device 206 , a display 208 , a transmitter 210 , and a receiver 212 .
  • the input device 206 and the display 208 are combined into a single device, such as a touchscreen.
  • the remote unit 102 may not include any input device 206 and/or display 208 .
  • the remote unit 102 may include one or more of the processor 202 , the memory 204 , the transmitter 210 , and the receiver 212 , and may not include the input device 206 and/or the display 208 .
  • the processor 202 may include any known controller capable of executing computer-readable instructions and/or capable of performing logical operations.
  • the processor 202 may be a microcontroller, a microprocessor, a central processing unit (“CPU”), a graphics processing unit (“GPU”), an auxiliary processing unit, a field programmable gate array (“FPGA”), or similar programmable controller.
  • the processor 202 executes instructions stored in the memory 204 to perform the methods and routines described herein.
  • the processor 202 is communicatively coupled to the memory 204 , the input device 206 , the display 208 , the transmitter 210 , and the receiver 212 .
  • the memory 204 in one embodiment, is a computer readable storage medium.
  • the memory 204 includes volatile computer storage media.
  • the memory 204 may include a RAM, including dynamic RAM (“DRAM”), synchronous dynamic RAM (“SDRAM”), and/or static RAM (“SRAM”).
  • the memory 204 includes non-volatile computer storage media.
  • the memory 204 may include a hard disk drive, a flash memory, or any other suitable non-volatile computer storage device.
  • the memory 204 includes both volatile and non-volatile computer storage media.
  • the memory 204 also stores program code and related data, such as an operating system or other controller algorithms operating on the remote unit 102 .
  • the input device 206 may include any known computer input device including a touch panel, a button, a keyboard, a stylus, a microphone, or the like.
  • the input device 206 may be integrated with the display 208 , for example, as a touchscreen or similar touch-sensitive display.
  • the input device 206 includes a touchscreen such that text may be input using a virtual keyboard displayed on the touchscreen and/or by handwriting on the touchscreen.
  • the input device 206 includes two or more different devices, such as a keyboard and a touch panel.
  • the display 208 may include any known electronically controllable display or display device.
  • the display 208 may be designed to output visual, audible, and/or haptic signals.
  • the display 208 includes an electronic display capable of outputting visual data to a user.
  • the display 208 may include, but is not limited to, a liquid crystal display (“LCD”), a light emitting diode (“LED”) display, an organic light emitting diode (“OLED”) display, a projector, or similar display device capable of outputting images, text, or the like to a user.
  • the display 208 may include a wearable display such as a smart watch, smart glasses, a heads-up display, or the like.
  • the display 208 may be a component of a smart phone, a personal digital assistant, a television, a table computer, a notebook (laptop) computer, a personal computer, a vehicle dashboard, or the like.
  • the display 208 includes one or more speakers for producing sound.
  • the display 208 may produce an audible alert or notification (e.g., a beep or chime).
  • the display 208 includes one or more haptic devices for producing vibrations, motion, or other haptic feedback.
  • all or portions of the display 208 may be integrated with the input device 206 .
  • the input device 206 and display 208 may form a touchscreen or similar touch-sensitive display.
  • the display 208 may be located near the input device 206 .
  • the processor 202 accesses a sidelink discontinuous reception configuration, wherein the sidelink discontinuous reception configuration corresponds to: a quality of service class; an identifier of the quality of service class; at least one attribute of the quality of service class; a range corresponding to the at least one attribute of the quality of service class; or some combination thereof; and performs sidelink communication based on the sidelink discontinuous reception configuration.
  • the processor 202 determines at least one parameter for a sidelink discontinuous reception configuration.
  • the transmitter 210 transmits the at least one parameter for the sidelink discontinuous reception configuration to a second user equipment.
  • the receiver 212 receives feedback from the second user equipment indicating acceptance of the at least one parameter for the sidelink discontinuous reception configuration.
  • the processor 202 accesses a sidelink discontinuous reception configuration, wherein the sidelink discontinuous reception configuration comprises a first offset for an on-duration, an on-duration timer, and a periodicity; and determines a second offset for the on-duration.
  • the transmitter 210 transmits data based on the sidelink discontinuous reception configuration and the second offset for the on-duration.
  • the processor 202 accesses a sidelink discontinuous reception configuration.
  • the sidelink discontinuous reception configuration includes an offset for an on-duration, an on-duration timer, and a periodicity.
  • the transmitter 210 transmits sidelink data
  • the receiver 212 receives the sidelink data, or a combination thereof.
  • the processor 202 starts a sidelink inactivity timer.
  • the processor 202 restarts the sidelink inactivity timer in response to: indicating a negative acknowledgement on a physical uplink control channel to request a retransmission grant to a base station; indicating an acknowledgement on the physical uplink control channel and in response to having a non-empty sidelink buffer to the base station; receiving hybrid automatic repeat request feedback on a physical sidelink feedback channel from a sidelink receiver user equipment; transmitting a sidelink scheduling request to a base station; transmitting a sidelink buffer status report to the base station; requesting a channel state information report on sidelink from a peer user equipment; receiving a request for a channel state information report on sidelink from a peer user equipment; receiving sidelink control information from the sidelink transmitter user equipment; receiving data from the sidelink transmitter user equipment; transmitting a physical sidelink feedback channel negative acknowledgement feedback to the sidelink transmitter user equipment; transmitting sidelink control information requesting sidelink physical sidelink feedback channel feedback; transmitting non-last sidelink control information while performing blind re-transmissions; transmitting non-last data
  • the remote unit 102 may have any suitable number of transmitters 210 and receivers 212 .
  • the transmitter 210 and the receiver 212 may be any suitable type of transmitters and receivers.
  • the transmitter 210 and the receiver 212 may be part of a transceiver.
  • FIG. 3 depicts one embodiment of an apparatus 300 that may be used for sidelink discontinuous reception configuration.
  • the apparatus 300 includes one embodiment of the network unit 104 .
  • the network unit 104 may include a processor 302 , a memory 304 , an input device 306 , a display 308 , a transmitter 310 , and a receiver 312 .
  • the processor 302 , the memory 304 , the input device 306 , the display 308 , the transmitter 310 , and the receiver 312 may be substantially similar to the processor 202 , the memory 204 , the input device 206 , the display 208 , the transmitter 210 , and the receiver 212 of the remote unit 102 , respectively.
  • a discontinuous reception (“DRX”) configuration may be brought to a vehicle to everything (“V2X”) layer (e.g., instead of at an access stratum layer).
  • V2X vehicle to everything
  • Such embodiments may cause a duplication of work (e.g., specification, implementation, and testing).
  • a standard sidelink (“SL”) on-duration may be used.
  • a standard SL on-duration may start at a known point in time and a SL user equipment (“UE”) may remain active until a known timer (e.g., on-duration-timer) is running.
  • the standard SL on-duration may start at a fixed time offset (e.g., offset_std_On-duration) from Time_ 0 based on a synchronization source from global navigation satellite system (“GNSS”) or gNB directly or indirectly from sidelink synchronization signals (“SLSS”).
  • GNSS global navigation satellite system
  • gNB global navigation satellite system
  • SLSS sidelink synchronization signals
  • active time may refer to a time period where a SL UE transmits and receives data on a UE to UE interface (“PC5”) interface. This is different than a UE to network interface (“Uu”) interface active time which only refers to a time period in which a UE is monitoring physical downlink control channel (“PDCCH”).
  • a SL-DRX-configuration is defined as a combination of offset_std_On-duration, On-duration-timer, and periodicity as shown in FIG.
  • QoS quality of service
  • QCI QoS class identifier
  • PQI performance quality index
  • FIG. 4 is a timing diagram 400 illustrating one embodiment of a SL DRX configuration.
  • the timing diagram 400 illustrates timing from Time_ 0 402 over time 404 , an offset_std_On-duration 406 , a periodicity 408 , and an On-duration-timer 410 .
  • a first SL DRX configuration (e.g., SL-DRX-configuration_1) is for basic safety messages and a second SL DRX configuration (e.g., SL-DRX-configuration_2) is for advanced safety messages in V2X communication.
  • a first SL DRX configuration (e.g., SL-DRX-configuration_1) is for vehicular communication and a second SL DRX configuration (e.g., SL-DRX-configuration_) is for public safety related communication.
  • a first SL DRX configuration (e.g., SL-DRX-configuration_1) is for pedestrian (e.g., vulnerable road user (“VRU”)) and a second SL DRX configuration (e.g., SL-DRX-configuration_2) is vehicular messages in V2X communication.
  • VRU vulnerable road user
  • a first SL DRX configuration (e.g., SL-DRX-configuration_1) is for a first PQI range (e.g., x1 to y1) and a second SL DRX configuration (e.g., SL-DRX-configuration_2) is for a second PQI range (e.g., x2 to y2).
  • a first SL DRX configuration (e.g., SL-DRX-configuration_1) is for a first QCI range (e.g., x1 to y1) and a second SL DRX configuration (e.g., SL-DRX-configuration_2) is for a second PQI range (e.g., x2 to y2).
  • only one single SL DRX configuration (e.g., SL-DRX-configuration_1) is used for any kind of sidelink communication using DRX based power savings.
  • FIG. 5 is a timing diagram 500 illustrating one embodiment of two SL DRX configurations corresponding to a first PQI range and a second PQI range.
  • the timing diagram 500 illustrates timing from Time_ 0 502 over time 504 for a SL DRX configuration corresponding to a first PQI-range, an offset_std_On-duration 506 , a periodicity 508 , and an On-duration-timer 510 .
  • the timing diagram 500 also illustrates timing from the Time_ 0 502 over time 516 for a SL DRX configuration corresponding to a second PQI-range, an offset_std_On-duration 518 , a periodicity 520 , and an On-duration-timer 522 .
  • not all SL DRX configuration parameters need to be unique across different (e.g., all) SL DRX configurations.
  • one or two of the parameters offset_std_On-duration, On-duration-timer, and periodicity may have a common value across different (e.g., all) SL DRX configurations.
  • the On-duration-timer may be small (e.g., some milliseconds) for applications with a small periodical data.
  • the On-duration-timer may be large (e.g., approaching infinity) for high latency sensitive applications—as long as the application remains live.
  • the values for the SL DRX configuration may be configurable and indicated to a UE using non-access stratum (“NAS”) or radio resource configuration (“RRC”) signaling where an application management function (“AMF”) or a gNB lets a SL UE know the SL DRX configuration for its geographical area like a radio access network (“RAN”) based notification area, UE's registration area (e.g., timing advance (“TA”) list), just cell areas, and/or just tracking areas. Preconfiguration of a SL DRX configuration may also be done.
  • NAS non-access stratum
  • RRC radio resource configuration
  • AMF application management function
  • a gNB lets a SL UE know the SL DRX configuration for its geographical area like a radio access network (“RAN”) based notification area, UE's registration area (e.g., timing advance (“TA”) list), just cell areas, and/or just tracking areas.
  • RAN radio access network
  • TA timing advance
  • one or more SL DRX configurations between a pair of peer UEs in a unicast connection may be aligned.
  • one of the peer UEs may negotiate an On-duration start time (e.g., offset_common_On-duration) different from a offset_std_On-duration to align and/or overlap with one or more existing On-durations—so, a UE may request its peer UE to move the On-duration start time to a offset_common_On-duration.
  • the negotiation may be done using PC5, NAS, or RRC signaling.
  • FIG. 6 is a network communications 600 diagram illustrating one embodiment of a negotiation of SL DRX configuration for unicast communication.
  • the communications 600 are illustrated between a first SL UE 602 and a second SL UE 604 .
  • Each of the communications 600 may include one or more messages.
  • the first SL UE 602 transmits a SL DRX reconfiguration message (e.g., new offset_common_On-duration) to the second SL UE 604 .
  • a SL DRX reconfiguration message e.g., new offset_common_On-duration
  • the second SL UE 604 transmits a SL DRX reconfiguration complete message to the first SL UE 602 .
  • the new SL DRX configuration is applied to the first SL UE 602 and the second SL UE 604 .
  • the first SL UE 602 aligns a SL DRX configuration with other SL DRX configurations to enable maximizing of its sleep time.
  • alignment of On-durations between a group of UEs in a groupcast communication is used as shown in FIG. 7 where all group members at a moment communicate using one or more standard known SL DRX configurations.
  • one group member e.g., a group leader
  • realizes opportunity for further power saving e.g., realizes that there are more than one SL DRX configurations in use
  • the group member requests that other group members (e.g., using a reconfiguration query) move to a different On-duration starting time called offset_common_On-duration.
  • the reconfiguration query may be sent using a groupcast (“GC”) signaling (e.g., addressed to a layer 2 (“L2”) GC destination identifier (“ID”)).
  • the offset_common_On-duration may be one of the offset_std_On-durations.
  • the group members may respond with a reconfiguration accept or a reconfiguration reject—that may be sent in a unicast (“UC”) manner to the initiating group member (e.g., to the group leader) or in a GC manner to the all group members.
  • UC unicast
  • a reconfiguration reject sent by any member UE may lead to a negotiation failure or a new offset_common_On-duration may need to be negotiated.
  • the initiating group member e.g., the group leader
  • group members e.g., an initiating group member such as a group leader
  • an offset_common_On-duration is advertised for each and/or any offset_std_On-duration relevant for communication relevant to a group—this helps a new group member to find the offset_common_On-duration.
  • the offset_common_On-duration may be advertised by a group member (e.g., group leader) or by a roadside unit (“RSU”).
  • a request and/or negotiation as shown in FIG. 8 may be done using NAS, RRC, or lower layer signaling.
  • a reconfiguration query that arrives later may be ignored by a group member; 2) a reconfiguration query from a UE with a smaller (or larger) member ID may be accepted; or 3) only a group leader can send a reconfiguration query.
  • FIG. 7 is a network communications 700 diagram illustrating one embodiment of a negotiation of SL DRX configuration for groupcast communication.
  • the communications 700 are illustrated between a first SL UE 702 , a second SL UE 704 , a third SL UE 706 , and an Nth SL UE 708 .
  • Each of the communications 700 may include one or more messages.
  • each of the first SL UE 702 , the second SL UE 704 , the third SL UE 706 , and the Nth SL UE 708 group of UEs may follow a default SL DRX configuration.
  • the first SL UE 702 transmits a reconfiguration query message (e.g., new offset_common_On-duration) to the second SL UE 704 , the third SL UE 706 , and the Nth SL UE 708 .
  • a reconfiguration query message e.g., new offset_common_On-duration
  • the second SL UE 704 , the third SL UE 706 , and the Nth SL UE 708 respectively transmit a reconfiguration accept message to the first SL UE 702 .
  • the first SL UE 702 transmits a reconfiguration message (e.g., new offset_std_On-duration) to the second SL UE 704 , the third SL UE 706 , and the Nth SL UE 708 .
  • the new SL DRX configuration is applied to the first SL UE 702 , the second SL UE 704 , the third SL UE 706 , and the Nth SL UE 708 .
  • an offset_common_On-duration is randomly picked from a set of offset values to facilitate proper resource utilization.
  • the set of offset values may be configured, preconfigured, or specified.
  • a possible configuration of the set of offset values may be achieved using RRC signaling, NAS signaling, or the set of offset values may be provided by the V2X layer.
  • a SL DRX configuration is done in a manner similar to sidelink resource block (“SLRB”) configuration. This may be applicable for a unicast, a groupcast, and a broadcast connection. Further, this may be applicable to: 1) Mode 1: dedicated DRX configurations; and 2) Mode 2: broadcast DRX configurations (or pre-configured).
  • SLRB sidelink resource block
  • a SL DRX configuration may be achieved by configuring resource pools such that SL resources are available only periodically.
  • a UE may sleep in time periods where there are no SL resources available and may wake up on certain time occasions periodically if the SL resources again become available, to be able to use the SL resources for transmission and reception.
  • any reconfiguration of a SL resource may be done in advance and communicated to UEs accordingly. This may be done using: 1) a longer modification period—each modification period may contain more than one occasion of SL resources; or 2) the reconfiguration may only be carried out after ‘N’ modification periods.
  • SL resource pools may be given (e.g., by way of preconfiguration or specification). In such embodiments, the resource pools may not change or get reconfigured. The UE assumes that the transmission and reception time are according to known SL resource pool configurations and therefore may sleep if SL resources are not available.
  • IE sidelink resource pool information element
  • SL-ResourcePool-r16 SEQUENCE ⁇ sl-PSCCH-Config-r16 SetupRelease ⁇ SL-PSCCH-Config-r16 ⁇ OPTIONAL, -- Need M sl-PSSCH-Config-r16 SetupRelease ⁇ SL-PSSCH-Config-r16 ⁇ OPTIONAL, -- Need M sl-PSFCH-Config-r16 SetupRelease ⁇ SL-PSFCH-Config-r16 ⁇ OPTIONAL, -- Need M sl-offset_std_On-duration INTEGER (0..1024*5) OPTIONAL, sl-On-duration-timer ENUMERATED ⁇ ms2, ms20, ms200, infinite ⁇ OPTIONAL, sl-Periodicity ENUMERATED ⁇ one-fourth,
  • a half-duplex (“HD”) issue may exist if multiple UEs buffering data for transmission attempt to transmit simultaneously at a start of a DRX On-duration.
  • At least one re-transmission may be made for which a time of re-transmission is chosen randomly from a time window starting at an offset after a transmission has been made.
  • the time window may be preconfigured, configured, or specified.
  • each member e.g., in UC or GC transmits in a round-robin fashion once an On-duration-timer is started. For example, a first member transmits in a first slot, a second member transmits in a second slot, and so forth.
  • at least one transmission is made by each member even if just to notify that there is no-data-available.
  • the notification of no-data-available may be done using a medium access control (“MAC”) control element (“CE”), physical layer sidelink control information (“SCI”), or other signaling.
  • MAC medium access control
  • CE control element
  • SCI physical layer sidelink control information
  • a SL UE requests that a serving gNB align a Uu DRX cycle according to its SL DRX configuration.
  • the SL UE sends UE assisted information (“UAI”) to the gNB, as shown in FIG.
  • UAI UE assisted information
  • SL DRX configuration parameters e.g., offset_std_On-duration, On-duration-timer, and periodicity
  • the gNB may send back a Uu DRX configuration (e.g., RRCReconfiguration) that maximizes overlap of a Uu and a SL active time for the SL UE; 2) the gNB may send back a Uu DRX configuration (e.g., RRCReconfiguration) that does not necessarily maximize overlap of the Uu and the SL active time but rather attempts to average out system load and/or resource efficiency; or 3) the gNB may send back a Uu DRX configuration (e.g., RRCReconfiguration) that achieves a balance between the above two options.
  • a Uu DRX configuration e.g., RRCReconfiguration
  • FIG. 8 is a network communications 800 diagram illustrating one embodiment of Uu negotiation to align Uu and SL DRX.
  • the communications 800 are illustrated between a UE 802 and a network 804 .
  • Each of the communications 800 may include one or more messages.
  • the UE 802 transmits UE assistance information (e.g., part of SL DRX configuration) to the network 804 .
  • UE assistance information e.g., part of SL DRX configuration
  • the network 804 transmits an RRCReconfiguration message to the UE 802 .
  • the UE 802 applies the received Uu DRX configuration (e.g., RRCReconfiguration).
  • a SL UE upon transmitting or receiving data, may start and/or restart a SL inactivity timer (e.g., SL-inactivity-timer). If both the On-duration-timer (e.g., on duration timer) and the SL-inactivity-timer expire, the SL UE enters DRX sleep as shown in FIG. 9 .
  • a SL inactivity timer e.g., SL-inactivity-timer
  • the SL-inactivity-timer may also be started and/or restarted at one or more of the following occasions: 1) when indicating a negative acknowledgement (“NACK”) on a physical uplink control channel (“PUCCH”) to request a re-transmission grant; 2) when indicating an acknowledgement (“ACK”) on a PUCCH and having a non-empty SL buffer; 3) when it receives hybrid automatic repeat request (“HARQ”) feedback on a physical sidelink feedback channel (“PSFCH”); 4) when transmitting a SL scheduling request (“SR”) (“SL-SR”) and/or a SL buffer status report (“BSR”) (“SL-BSR”) to a gNB; 5) when requesting a channel state information (“CSI”) report on SL from a peer UE; 6) when having received a request for a CSI-report on SL from a peer UE; 7) when receiving SCI (e.g., PUCCH) which may contain a relevant source (“SRC”) layer 2 identifier (“L2ID
  • FIG. 9 is a timing diagram 900 illustrating one embodiment of SL DRX interplay with timers.
  • the timing diagram 900 illustrates a sleep time 902 , a start 904 of an On-duration-timer, a time to wake-up 906 , an event 908 triggering the start and/or restart of a SL-inactivity-timer, a start 910 of the SL-inactivity-timer, an expiration 912 of the On-duration-timer, and an expiration 914 of the SL-inactivity-timer.
  • a resource pool configuration (e.g., from a network) and usage (e.g., from a UE) may be different for the following: 1) resource pool specific DRX: every resource pool has a configured SL DRX configuration—a SL UE chooses the SL DRX configuration according to its power saving needs and frequency of data transmission and/or reception for serving periodic applications; and 2) separate resource pools for vehicular traffic, for pedestrian UEs, for public safety, and/or for commercial SL UEs.
  • a pedestrian (e.g., VRU) UE interested only in communicating with other pedestrian (e.g., VRU) UEs may use only a corresponding resource pool to receive and transmit messages.
  • a vehicular UE may only transmit to pedestrian (e.g., VRU) UEs in that resource pool.
  • FIG. 10 is a flow chart diagram illustrating one embodiment of a method 1000 for sidelink discontinuous reception configuration.
  • the method 1000 is performed by an apparatus, such as the remote unit 102 .
  • the method 1000 may be performed by a processor executing program code, for example, a microcontroller, a microprocessor, a CPU, a GPU, an auxiliary processing unit, a FPGA, or the like.
  • the method 1000 includes accessing 1002 a sidelink discontinuous reception configuration.
  • the sidelink discontinuous reception configuration corresponds to: a quality of service class; an identifier of the quality of service class; at least one attribute of the quality of service class; a range corresponding to the at least one attribute of the quality of service class; or some combination thereof.
  • the method 1000 includes performing 1004 sidelink communication based on the sidelink discontinuous reception configuration.
  • the sidelink discontinuous reception configuration comprises an offset from a fixed time reference for an on-duration, an on-duration timer, a periodicity, or some combination thereof.
  • the method 1000 further comprises receiving information indicating the offset for the on-duration, the on-duration timer, the periodicity, or some combination thereof.
  • the information indicating the offset for the on-duration, the on-duration timer, the periodicity, or some combination thereof is received via non-access stratum signaling or radio resource control signaling.
  • the quality of service class comprises a quality of service class identifier for sidelink communication.
  • FIG. 11 is a flow chart diagram illustrating another embodiment of a method 1100 for sidelink discontinuous reception configuration.
  • the method 1100 is performed by an apparatus, such as the remote unit 102 .
  • the method 1100 may be performed by a processor executing program code, for example, a microcontroller, a microprocessor, a CPU, a GPU, an auxiliary processing unit, a FPGA, or the like.
  • the method 1100 includes determining 1102 , at a first user equipment, at least one parameter for a sidelink discontinuous reception configuration. In some embodiments, the method 1100 includes transmitting 1104 the at least one parameter for the sidelink discontinuous reception configuration to a second user equipment. In certain embodiments, the method 1100 includes receiving 1106 feedback from the second user equipment indicating acceptance of the at least one parameter for the sidelink discontinuous reception configuration.
  • the method 1100 further comprises communicating with the second user equipment based on the sidelink discontinuous reception configuration.
  • the at least one parameter comprises an offset for an on-duration, an on-duration timer, a periodicity, or some combination thereof.
  • determining the at least one parameter for the sidelink discontinuous reception configuration comprises determining a change to the at least one parameter from a prior sidelink discontinuous reception configuration used by the first user equipment and the second user equipment.
  • the at least one parameter for the sidelink discontinuous reception configuration is transmitted to the second user equipment using a sidelink interface, non-access stratum signaling, or sidelink radio resource control signaling. In certain embodiments, determining the at least one parameter for the sidelink discontinuous reception configuration is based on information received from a network device for the first user equipment to the network device discontinuous reception alignment or based on a time at which there is data available for transmission.
  • FIG. 12 is a flow chart diagram illustrating yet another embodiment of a method 1200 for sidelink discontinuous reception configuration.
  • the method 1200 is performed by an apparatus, such as the remote unit 102 .
  • the method 1200 may be performed by a processor executing program code, for example, a microcontroller, a microprocessor, a CPU, a GPU, an auxiliary processing unit, a FPGA, or the like.
  • the method 1200 includes accessing 1202 a sidelink discontinuous reception configuration.
  • the sidelink discontinuous reception configuration includes a first offset for an on-duration, an on-duration timer, and a periodicity.
  • the method 1200 includes determining 1204 a second offset for the on-duration.
  • the method 1200 includes transmitting 1206 data based on the sidelink discontinuous reception configuration and the second offset for the on-duration.
  • the data is transmitted at a time after the start of the on-duration timer that is offset by the second offset for the on-duration.
  • the method 1200 further comprises retransmitting the data at a second offset, wherein the second offset is randomly from a set of values.
  • the second offset for the on-duration is determined based on a number of user equipments transmitting data.
  • FIG. 13 is a flow chart diagram illustrating a further embodiment of a method 1300 for sidelink discontinuous reception configuration.
  • the method 1300 is performed by an apparatus, such as the remote unit 102 .
  • the method 1300 may be performed by a processor executing program code, for example, a microcontroller, a microprocessor, a CPU, a GPU, an auxiliary processing unit, a FPGA, or the like.
  • the method 1300 includes accessing 1302 a sidelink discontinuous reception configuration.
  • the sidelink discontinuous reception configuration includes an offset for an on-duration, an on-duration timer, and a periodicity.
  • the method 1300 includes transmitting 1304 sidelink data, receiving the sidelink data, or a combination thereof.
  • the method 1300 includes, in response to transmitting the sidelink data, receiving 1306 the sidelink data, or a combination thereof, starting a sidelink inactivity timer.
  • the method 1300 includes restarting 1308 the sidelink inactivity timer in response to: indicating a negative acknowledgement on a physical uplink control channel to request a retransmission grant to a base station; indicating an acknowledgement on the physical uplink control channel and in response to having a non-empty sidelink buffer to the base station; receiving hybrid automatic repeat request feedback on a physical sidelink feedback channel from a sidelink receiver user equipment; transmitting a sidelink scheduling request to a base station; transmitting a sidelink buffer status report to the base station; requesting a channel state information report on sidelink from a peer user equipment; receiving a request for a channel state information report on sidelink from a peer user equipment; receiving sidelink control information from the sidelink transmitter user equipment; receiving data from the sidelink transmitter user equipment; transmitting a physical sidelink feedback channel negative acknowledgement feedback to the sidelink transmitter user equipment; transmitting sidelink control information requesting sidelink physical sidelink feedback channel feedback; transmitting non-last sidelink control information while performing blind re-transmissions
  • the method 1300 further comprises, in response to the on-duration timer expiring and the sidelink inactivity timer expiring, entering a sleep mode.
  • a method comprises: accessing a sidelink discontinuous reception configuration, wherein the sidelink discontinuous reception configuration corresponds to: a quality of service class; an identifier of the quality of service class; at least one attribute of the quality of service class; a range corresponding to the at least one attribute of the quality of service class; or some combination thereof; and performing sidelink communication based on the sidelink discontinuous reception configuration.
  • the sidelink discontinuous reception configuration comprises an offset from a fixed time reference for an on-duration, an on-duration timer, a periodicity, or some combination thereof.
  • the method further comprises receiving information indicating the offset for the on-duration, the on-duration timer, the periodicity, or some combination thereof.
  • the information indicating the offset for the on-duration, the on-duration timer, the periodicity, or some combination thereof is received via non-access stratum signaling or radio resource control signaling.
  • the quality of service class comprises a quality of service class identifier for sidelink communication.
  • an apparatus comprises: a processor that: accesses a sidelink discontinuous reception configuration, wherein the sidelink discontinuous reception configuration corresponds to: a quality of service class; an identifier of the quality of service class; at least one attribute of the quality of service class; a range corresponding to the at least one attribute of the quality of service class; or some combination thereof; and performs sidelink communication based on the sidelink discontinuous reception configuration.
  • the sidelink discontinuous reception configuration comprises an offset from a fixed time reference for an on-duration, an on-duration timer, a periodicity, or some combination thereof.
  • the apparatus further comprises a receiver that receives information indicating the offset for the on-duration, the on-duration timer, the periodicity, or some combination thereof.
  • the information indicating the offset for the on-duration, the on-duration timer, the periodicity, or some combination thereof is received via non-access stratum signaling or radio resource control signaling.
  • the quality of service class comprises a quality of service class identifier for sidelink communication.
  • a method comprises: determining, at a first user equipment, at least one parameter for a sidelink discontinuous reception configuration; transmitting the at least one parameter for the sidelink discontinuous reception configuration to a second user equipment; and receiving feedback from the second user equipment indicating acceptance of the at least one parameter for the sidelink discontinuous reception configuration.
  • the method further comprises communicating with the second user equipment based on the sidelink discontinuous reception configuration.
  • the at least one parameter comprises an offset for an on-duration, an on-duration timer, a periodicity, or some combination thereof.
  • determining the at least one parameter for the sidelink discontinuous reception configuration comprises determining a change to the at least one parameter from a prior sidelink discontinuous reception configuration used by the first user equipment and the second user equipment.
  • the at least one parameter for the sidelink discontinuous reception configuration is transmitted to the second user equipment using a sidelink interface, non-access stratum signaling, or sidelink radio resource control signaling.
  • determining the at least one parameter for the sidelink discontinuous reception configuration is based on information received from a network device for the first user equipment to the network device discontinuous reception alignment or based on a time at which there is data available for transmission.
  • an apparatus comprising a first user equipment.
  • the apparatus further comprises: a processor that determines at least one parameter for a sidelink discontinuous reception configuration; a transmitter that transmits the at least one parameter for the sidelink discontinuous reception configuration to a second user equipment; and a receiver that receives feedback from the second user equipment indicating acceptance of the at least one parameter for the sidelink discontinuous reception configuration.
  • the transmitter and the receiver communicate with the second user equipment based on the sidelink discontinuous reception configuration.
  • the at least one parameter comprises an offset for an on-duration, an on-duration timer, a periodicity, or some combination thereof.
  • the processor determining the at least one parameter for the sidelink discontinuous reception configuration comprises the processor determining a change to the at least one parameter from a prior sidelink discontinuous reception configuration used by the first user equipment and the second user equipment.
  • the at least one parameter for the sidelink discontinuous reception configuration is transmitted to the second user equipment using a sidelink interface, non-access stratum signaling, or sidelink radio resource control signaling.
  • the processor determining the at least one parameter for the sidelink discontinuous reception configuration is based on information received from a network device for the first user equipment to the network device discontinuous reception alignment or based on a time at which there is data available for transmission.
  • a method comprises: accessing a sidelink discontinuous reception configuration, wherein the sidelink discontinuous reception configuration comprises a first offset for an on-duration, an on-duration timer, and a periodicity; determining a second offset for the on-duration; and transmitting data based on the sidelink discontinuous reception configuration and the second offset for the on-duration.
  • the data is transmitted at a time after the start of the on-duration timer that is offset by the second offset for the on-duration.
  • the method further comprises retransmitting the data at a second offset, wherein the second offset is randomly from a set of values.
  • the second offset for the on-duration is determined based on a number of user equipments transmitting data.
  • an apparatus comprises: a processor that: accesses a sidelink discontinuous reception configuration, wherein the sidelink discontinuous reception configuration comprises a first offset for an on-duration, an on-duration timer, and a periodicity; and determines a second offset for the on-duration; and a transmitter that transmits data based on the sidelink discontinuous reception configuration and the second offset for the on-duration.
  • the data is transmitted at a time after the start of the on-duration timer that is offset by the second offset for the on-duration.
  • the transmitter retransmits the data at a second offset, wherein the second offset is randomly from a set of values.
  • the second offset for the on-duration is determined based on a number of user equipments transmitting data.
  • a method comprises: accessing a sidelink discontinuous reception configuration, wherein the sidelink discontinuous reception configuration comprises an offset for an on-duration, an on-duration timer, and a periodicity; transmitting sidelink data, receiving the sidelink data, or a combination thereof; in response to transmitting the sidelink data, receiving the sidelink data, or a combination thereof, starting a sidelink inactivity timer; and restarting the sidelink inactivity timer in response to: indicating a negative acknowledgement on a physical uplink control channel to request a retransmission grant to a base station; indicating an acknowledgement on the physical uplink control channel and in response to having a non-empty is sidelink buffer to the base station; receiving hybrid automatic repeat request feedback on a physical sidelink feedback channel from a sidelink receiver user equipment; transmitting a sidelink scheduling request to a base station; transmitting a sidelink buffer status report to the base station; requesting a channel state information report on sidelink from a peer user equipment; receiving a request for a
  • the method further comprises, in response to the on-duration timer expiring and the sidelink inactivity timer expiring, entering a sleep mode.
  • an apparatus comprises: a processor that accesses a sidelink discontinuous reception configuration, wherein the sidelink discontinuous reception configuration comprises an offset for an on-duration, an on-duration timer, and a periodicity; a transmitter; and a receiver, wherein the transmitter transmits sidelink data, the receiver receives the sidelink data, or a combination thereof wherein: in response to the transmitter transmitting sidelink data, the receiver receiving the sidelink data, or a combination thereof, the processor starts a sidelink inactivity timer; the processor restarts the sidelink inactivity timer in response to: indicating a negative acknowledgement on a physical uplink control channel to request a retransmission grant to a base station; indicating an acknowledgement on the physical uplink control channel and in response to having a non-empty sidelink buffer to the base station; receiving hybrid automatic repeat request feedback on a physical sidelink feedback channel from a sidelink receiver user equipment; transmitting a sidelink scheduling request to a base station; transmitting a sidelink buffer status report to the base
  • the processor in response to the on-duration timer expiring and the sidelink inactivity timer expiring, enters a sleep mode.

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Mobile Radio Communication Systems (AREA)
  • Quality & Reliability (AREA)
  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Detection And Prevention Of Errors In Transmission (AREA)
  • Data Exchanges In Wide-Area Networks (AREA)
  • Input Circuits Of Receivers And Coupling Of Receivers And Audio Equipment (AREA)
  • Measuring Pulse, Heart Rate, Blood Pressure Or Blood Flow (AREA)
  • Databases & Information Systems (AREA)
US18/016,052 2020-07-13 2021-07-10 Sidelink discontinuous reception configuration Pending US20230276364A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
US18/016,052 US20230276364A1 (en) 2020-07-13 2021-07-10 Sidelink discontinuous reception configuration

Applications Claiming Priority (6)

Application Number Priority Date Filing Date Title
US202063051207P 2020-07-13 2020-07-13
US202063051184P 2020-07-13 2020-07-13
US202063051233P 2020-07-13 2020-07-13
US202063051217P 2020-07-13 2020-07-13
PCT/IB2021/056209 WO2022013699A2 (en) 2020-07-13 2021-07-10 Sidelink discontinuous reception configuration
US18/016,052 US20230276364A1 (en) 2020-07-13 2021-07-10 Sidelink discontinuous reception configuration

Publications (1)

Publication Number Publication Date
US20230276364A1 true US20230276364A1 (en) 2023-08-31

Family

ID=76959021

Family Applications (4)

Application Number Title Priority Date Filing Date
US18/016,119 Pending US20230276527A1 (en) 2020-07-13 2021-07-10 Discontinuous reception configuration parameters for communication
US18/016,052 Pending US20230276364A1 (en) 2020-07-13 2021-07-10 Sidelink discontinuous reception configuration
US18/016,151 Pending US20230262738A1 (en) 2020-07-13 2021-07-10 Indication of a request for sidelink resources
US18/016,147 Pending US20230262601A1 (en) 2020-07-13 2021-07-12 Radio resource configuration for power saving

Family Applications Before (1)

Application Number Title Priority Date Filing Date
US18/016,119 Pending US20230276527A1 (en) 2020-07-13 2021-07-10 Discontinuous reception configuration parameters for communication

Family Applications After (2)

Application Number Title Priority Date Filing Date
US18/016,151 Pending US20230262738A1 (en) 2020-07-13 2021-07-10 Indication of a request for sidelink resources
US18/016,147 Pending US20230262601A1 (en) 2020-07-13 2021-07-12 Radio resource configuration for power saving

Country Status (10)

Country Link
US (4) US20230276527A1 (zh)
EP (4) EP4179795A2 (zh)
JP (2) JP2023534266A (zh)
KR (2) KR20230038192A (zh)
CN (4) CN115804240A (zh)
AU (1) AU2021307585A1 (zh)
BR (3) BR112023000507A2 (zh)
CA (2) CA3182840A1 (zh)
MX (2) MX2023000592A (zh)
WO (4) WO2022013699A2 (zh)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20220225297A1 (en) * 2021-01-13 2022-07-14 Qualcomm Incorporated Techniques for sidelink control signaling
US20230073478A1 (en) * 2021-09-06 2023-03-09 Qualcomm Incorporated Discontinuous reception (drx) configuration for sidelink communications by a user equipment (ue)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2022077395A1 (zh) * 2020-10-15 2022-04-21 Oppo广东移动通信有限公司 侧行链路的传输方法和终端
EP4171151A4 (en) * 2020-10-22 2023-11-29 LG Electronics Inc. METHOD AND APPARATUS FOR SENDING/RECEIVING A COORDINATION MESSAGE BETWEEN USER DEVICES IN NR V2X
US20220295408A1 (en) * 2021-03-15 2022-09-15 Qualcomm Incorporated Power saving in sidelink
US11889497B2 (en) * 2021-07-28 2024-01-30 Qualcomm Incorporated Scheduling sidelink communications
US11576122B1 (en) * 2021-08-05 2023-02-07 Qualcomm Incorporated Sidelink discontinuous reception (DRX) support indication and detection
WO2024087762A1 (en) * 2023-07-24 2024-05-02 Lenovo (Beijing) Limited Sl wus resource (pre) configuration

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CA2817781C (en) * 2010-11-15 2019-02-26 Research In Motion Limited Managing communications across a wireless network using discontinuous reception
EP3228129B1 (en) * 2014-12-02 2020-04-08 Telefonaktiebolaget LM Ericsson (publ) Wake-up for d2d communication
EP3466161B1 (en) * 2016-05-24 2023-04-19 Telefonaktiebolaget LM Ericsson (publ) Methods and apparatus for configuring a discontinuous reception mode in a wireless network
DE112017003646T5 (de) * 2016-07-21 2019-04-04 Samsung Electronics Co., Ltd. SYSTEM UND VERFAHREN ZUM ERKENNEN VON BENUTZERGERÄTEN (UEs) ÜBER SIDE-LINK IN VORRICHTUNG-ZU-VORRICHTUNG (D2D) -KOMMUNIKATION
CN108307486A (zh) * 2016-08-11 2018-07-20 索尼公司 用于网络控制端和网络节点的电子设备和方法
EP3603223A4 (en) * 2017-03-24 2021-01-13 Apple Inc. WAKE-UP SIGNAL FOR MACHINE-TYPE COMMUNICATION AND NARROW-BAND INTERNET OF OBJECTS
US11218964B2 (en) * 2017-04-26 2022-01-04 Lg Electronics Inc. Method and apparatus for receiving wake-up signal in wireless communication system
US11729857B2 (en) * 2018-09-17 2023-08-15 Apple Inc. Systems, methods, and devices for signaling for power saving
WO2021016817A1 (zh) * 2019-07-29 2021-02-04 北京小米移动软件有限公司 直连通信方法、装置及存储介质

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20220225297A1 (en) * 2021-01-13 2022-07-14 Qualcomm Incorporated Techniques for sidelink control signaling
US20230073478A1 (en) * 2021-09-06 2023-03-09 Qualcomm Incorporated Discontinuous reception (drx) configuration for sidelink communications by a user equipment (ue)

Also Published As

Publication number Publication date
EP4179795A2 (en) 2023-05-17
KR20230038192A (ko) 2023-03-17
WO2022013698A2 (en) 2022-01-20
JP2023535892A (ja) 2023-08-22
US20230262738A1 (en) 2023-08-17
WO2022013699A3 (en) 2022-02-24
JP2023534266A (ja) 2023-08-08
CN115804240A (zh) 2023-03-14
MX2023000591A (es) 2023-02-13
EP4179794A1 (en) 2023-05-17
WO2022013717A3 (en) 2022-02-24
US20230262601A1 (en) 2023-08-17
MX2023000592A (es) 2023-02-13
BR112023000507A2 (pt) 2023-01-31
BR112023000651A2 (pt) 2023-01-31
WO2022013700A1 (en) 2022-01-20
EP4179836A2 (en) 2023-05-17
EP4179669A2 (en) 2023-05-17
KR20230038199A (ko) 2023-03-17
CN115769638A (zh) 2023-03-07
WO2022013717A2 (en) 2022-01-20
WO2022013698A3 (en) 2022-02-24
US20230276527A1 (en) 2023-08-31
BR112023000610A2 (pt) 2023-01-31
WO2022013699A2 (en) 2022-01-20
CN115769663A (zh) 2023-03-07
AU2021307585A1 (en) 2023-03-09
CA3182835A1 (en) 2022-01-20
CN115918007A (zh) 2023-04-04
CA3182840A1 (en) 2022-01-20

Similar Documents

Publication Publication Date Title
US20230276364A1 (en) Sidelink discontinuous reception configuration
US20230291514A1 (en) Determining transmissions to avoid
CN113574930B (zh) 用于移动性事件的v2x通信资源的装置、方法和系统
US20230299897A1 (en) Configuring a sidelink hybrid automatic repeat request
US20240172038A1 (en) Traffic communication pattern mapping
WO2020150986A1 (en) Resource configuration
WO2023061616A1 (en) Relaying data volume information
US20240040593A1 (en) Configuring resources corresponding to discontinuous reception
US20230199642A1 (en) Transmitting sidelink control information indicating no sidelink data
US20230261839A1 (en) Monitoring downlink control information formats
WO2022018587A1 (en) Radio resource control inactive state sidelink communications
WO2022178713A1 (en) Sidelink discontinuous reception configuration
WO2023072419A1 (en) Communicating and storing aerial system security information
WO2023007407A1 (en) Determining a resource based on a resource assignment

Legal Events

Date Code Title Description
AS Assignment

Owner name: LENOVO (SINGAPORE) PTE. LTD., SINGAPORE

Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNORS:BASU MALLICK, PRATEEK;GANESAN, KARTHIKEYAN;LOEHR, JOACHIM;AND OTHERS;SIGNING DATES FROM 20230103 TO 20230202;REEL/FRAME:062620/0043

STPP Information on status: patent application and granting procedure in general

Free format text: DOCKETED NEW CASE - READY FOR EXAMINATION