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WO2024168620A1 - Configuration de ressource dynamique pour rétroaction de liaison latérale - Google Patents

Configuration de ressource dynamique pour rétroaction de liaison latérale Download PDF

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Publication number
WO2024168620A1
WO2024168620A1 PCT/CN2023/076274 CN2023076274W WO2024168620A1 WO 2024168620 A1 WO2024168620 A1 WO 2024168620A1 CN 2023076274 W CN2023076274 W CN 2023076274W WO 2024168620 A1 WO2024168620 A1 WO 2024168620A1
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WO
WIPO (PCT)
Prior art keywords
transmission
resource
new
resources
indication
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.)
Ceased
Application number
PCT/CN2023/076274
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English (en)
Inventor
Yong Liu
Laura Luque SANCHEZ
Jianguo Liu
Torsten WILDSCHEK
Nuno Manuel KIILERICH PRATAS
Renato Barbosa ABREU
Thomas Haaning Jacobsen
Naizheng ZHENG
Timo Erkki Lunttila
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.)
Nokia Shanghai Bell Co Ltd
Nokia Solutions and Networks Oy
Nokia Technologies Oy
Original Assignee
Nokia Shanghai Bell Co Ltd
Nokia Solutions and Networks Oy
Nokia Technologies Oy
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 Nokia Shanghai Bell Co Ltd, Nokia Solutions and Networks Oy, Nokia Technologies Oy filed Critical Nokia Shanghai Bell Co Ltd
Priority to CN202380091285.1A priority Critical patent/CN120530705A/zh
Priority to PCT/CN2023/076274 priority patent/WO2024168620A1/fr
Publication of WO2024168620A1 publication Critical patent/WO2024168620A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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Classifications

    • 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
    • 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
    • H04L1/1829—Arrangements specially adapted for the receiver end
    • H04L1/1854—Scheduling and prioritising arrangements
    • 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
    • H04L1/1829—Arrangements specially adapted for the receiver end
    • H04L1/1861—Physical mapping arrangements

Definitions

  • Various example embodiments of the present disclosure generally relate to the field of telecommunication and in particular, to methods, devices, apparatuses and computer readable storage medium for dynamic resource configuration for sidelink feedback.
  • Hybrid automatic repeat request (HARQ) feedback is allowed for sidelink communication in licensed spectrum.
  • a physical sidelink feedback channel (PSFCH) for sidelink communication is defined to carry HARQ feedback to a physical sidelink shared channel (PSSCH) over sidelink between user equipment (UEs) .
  • resources for PSFCHs (or “PSFCH resources” ) may be preconfigured for sidelink communication in unlicensed spectrum.
  • Multi-consecutive slots transmission (MCSt) for sidelink in unlicensed spectrum (SL-U) is supported in the third-generation partnership project (3GPP) .
  • MCSt which is performed by a UE and continues during PSFCH symbols, may cause other UEs unable to use preconfigured PSFCH resources for PSFCHs.
  • a method comprises: performing a first transmission, the first transmission preventing a second transmission on a sidelink feedback channel in a first preconfigured resource; and transmitting an indication of a new resource for the sidelink feedback channel.
  • a method comprises receiving a third transmission on a sidelink data channel; receiving an indication of a new resource for a sidelink feedback channel, wherein the indication is received from a first device performing a first transmission, the first transmission preventing a second transmission of feedback for the third transmission on a sidelink feedback channel in a first preconfigured resource; and transmitting, based on the indication, in the new resource, feedback for the third transmission.
  • a method comprises performing a third transmission on a sidelink data channel; receiving an indication of a new resource for a sidelink feedback channel, wherein the indication is received from a first device performing a first transmission, the first transmission preventing a second transmission of feedback for the third transmission on a sidelink feedback channel in a first preconfigured resource; and detecting, based on the indication, in the new resource, feedback for the third transmission.
  • a first device comprises at least one processor; and at least one memory storing instructions that, when executed by the at least one processor, cause the first device at least to perform: performing a first transmission, the first transmission preventing a second transmission on a sidelink feedback channel in a first preconfigured resource; and transmitting an indication of a new resource for the sidelink feedback channel.
  • a third device comprises at least one processor; and at least one memory storing instructions that, when executed by the at least one processor, cause the third device at least to perform: receiving a third transmission on a sidelink data channel; receiving an indication of a new resource for a sidelink feedback channel, wherein the indication is received from a first device performing a first transmission, the first transmission preventing a second transmission of feedback for the third transmission on a sidelink feedback channel in a first preconfigured resource; and transmitting, based on the indication, in the new resource, feedback for the third transmission.
  • a second device comprises at least one processor; and at least one memory storing instructions that, when executed by the at least one processor, cause the second device at least to perform: performing a third transmission on a sidelink data channel; receiving an indication of a new resource for a sidelink feedback channe, wherein the indication is received from a first device performing a first transmission, the first transmission preventing a second transmission of feedback for the third transmission on a sidelink feedback channel in a first preconfigured resource; and detecting, based on the indication, in the new resource, feedback for the third transmission.
  • an apparatus comprising means for performing a first transmission, the first transmission preventing a second transmission on a sidelink feedback channel in a first preconfigured resource; and means for transmitting an indication of a new resource for the sidelink feedback channel.
  • an apparatus comprising means for receiving a third transmission on a sidelink data channel; means for receiving an indication of a new resource for a sidelink feedback channel, wherein the indication is received from a first device performing a first transmission, the first transmission preventing a second transmission of feedback for the third transmission on a sidelink feedback channel in a first preconfigured resource; and means for transmitting, based on the indication, in the new resource, feedback for the third transmission.
  • an apparatus comprising means for performing a third transmission on a sidelink data channel; means for receiving an indication of a new resource for a sidelink feedback channel, wherein the indication is received from a first device performing a first transmission, the first transmission preventing a second transmission of feedback for the third transmission on a sidelink feedback channel in a first preconfigured resource; and means for detecting, based on the indication, in the new resource, feedback for the third transmission.
  • a computer readable medium comprises instructions stored thereon for causing an apparatus to perform at least the method according to the fourth aspect.
  • a computer readable medium comprises instructions stored thereon for causing an apparatus to perform at least the method according to the fifth aspect.
  • a computer readable medium comprises instructions stored thereon for causing an apparatus to perform at least the method according to the sixth aspect.
  • FIG. 1 illustrates an example communication environment in which example embodiments of the present disclosure can be implemented
  • FIG. 2A illustrates an example frame structure of a sidelink slot with a physical sidelink control channel (PSCCH) , a PSSCH and a PSFCH according to some example embodiments of the present disclosure
  • FIG. 2B illustrates example mapping between PSSCHs and PSFCHs according to some example embodiments of the present disclosure
  • FIG. 2C illustrates example prevention in a preconfigured PSFCH resource according to some example embodiments of the present disclosure
  • FIG. 3 illustrates an example signaling diagram of process for dynamically configuring a resource for a sidelink feedback channel according to some example embodiments of the present disclosure
  • FIG. 4 illustrates an example configuration of the new resource according to some example embodiments of the present disclosure
  • FIG. 5A illustrates an example process at a receiving device according to some example embodiments of the present disclosure
  • FIG. 5B illustrates an example process at a transmitting device according to some example embodiments of the present disclosure
  • FIG. 6 illustrates a flowchart of an example method implemented at a first device in accordance with some example embodiments of the present disclosure
  • FIG. 7 illustrates a flowchart of a method implemented at a third device according to some example embodiments of the present disclosure
  • FIG. 8 illustrates a flowchart of a method implemented at a second device according to some example embodiments of the present disclosure
  • FIG. 9 illustrates a simplified block diagram of a device that is suitable for implementing example embodiments of the present disclosure.
  • FIG. 10 illustrates a block diagram of an example computer readable medium in accordance with some example embodiments of the present disclosure.
  • references in the present disclosure to “one embodiment, ” “an embodiment, ” “an example embodiment, ” and the like indicate that the embodiment 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 are not necessarily referring to the same embodiment. 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, ” “second” and 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. For example, a first element could be termed a second element, and similarly, a second element could be termed a first element, without departing from the scope of example embodiments.
  • the term “and/or” includes any and all combinations of one or more of the listed terms.
  • performing a step “in response to A” does not indicate that the step is performed immediately after “A” occurs and one or more intervening steps may be included.
  • circuitry may refer to one or more or all of the following:
  • circuitry also covers an implementation of merely a hardware circuit or processor (or multiple processors) or portion of a hardware circuit or processor and its (or their) accompanying software and/or firmware.
  • circuitry also covers, for example and if applicable to the particular claim element, a baseband integrated circuit or processor integrated circuit for a mobile device or a similar integrated circuit in server, a cellular network device, or other computing or network device.
  • the term “communication network” refers to a network following any suitable communication standards, such as New Radio (NR) , Long Term Evolution (LTE) , LTE-Advanced (LTE-A) , Wideband Code Division Multiple Access (WCDMA) , High-Speed Packet Access (HSPA) , Narrow Band Internet of Things (NB-IoT) and so on.
  • NR New Radio
  • LTE Long Term Evolution
  • LTE-A LTE-Advanced
  • WCDMA Wideband Code Division Multiple Access
  • HSPA High-Speed Packet Access
  • NB-IoT Narrow Band Internet of Things
  • the communications between a terminal device 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 fourth generation (4G) , 4.5G, the fifth generation (5G) communication protocols, and/or any other protocols either currently known or to be developed in the future.
  • 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 fourth generation (4G) , 4.5G, the fifth generation (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 of course also be future type communication technologies and systems with which the present disclosure may be embodied. It should not be seen as limiting the scope of the present disclosure to only the aforementioned system
  • the term “network device” refers to a node in a communication network via which a terminal device accesses the network and receives 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) , an evolved NodeB (eNodeB or eNB) , an NR NB (also referred to as a gNB) , a Remote Radio Unit (RRU) , a radio header (RH) , a remote radio head (RRH) , a relay, an Integrated Access and Backhaul (IAB) node, a low power node such as a femto, a pico, a non-terrestrial network (NTN) or non-ground network device such as a satellite network device, a low earth orbit (LEO) satellite and a geosynchronous earth orbit (GEO) satellite, an aircraft network device, and so forth, depending on the applied terminology and technology
  • radio access network (RAN) split architecture comprises a Centralized Unit (CU) and a Distributed Unit (DU) at an IAB donor node.
  • An IAB node comprises a Mobile Terminal (IAB-MT) part that behaves like a UE toward the parent node, and a DU part of an IAB node behaves like a base station toward the next-hop IAB node.
  • IAB-MT Mobile Terminal
  • terminal device refers to any end device that may be capable of wireless communication.
  • a terminal device may also be referred to as a communication device, user equipment (UE) , a Subscriber Station (SS) , a Portable Subscriber Station, a Mobile Station (MS) , or an Access Terminal (AT) .
  • UE user equipment
  • SS Subscriber Station
  • MS Mobile Station
  • AT Access Terminal
  • the terminal device may include, but not limited to, a mobile phone, a cellular phone, a smart phone, voice over IP (VoIP) phones, wireless local loop phones, a tablet, a wearable terminal device, a personal digital assistant (PDA) , portable computers, desktop computer, image capture terminal devices such as digital cameras, gaming terminal devices, music storage and playback appliances, vehicle-mounted wireless terminal devices, wireless endpoints, mobile stations, laptop-embedded equipment (LEE) , laptop-mounted equipment (LME) , USB dongles, smart devices, wireless customer-premises equipment (CPE) , an Internet of Things (IoT) device, a watch or other wearable, a head-mounted display (HMD) , a vehicle, a drone, a medical device and applications (e.g., remote surgery) , an industrial device and applications (e.g., a robot and/or other wireless devices operating in an industrial and/or an automated processing chain contexts) , a consumer electronics device, a device operating on commercial and/
  • the terminal device may also correspond to a Mobile Termination (MT) part of an IAB node (e.g., a relay node) .
  • MT Mobile Termination
  • IAB node e.g., a relay node
  • the terms “terminal device” , “communication device” , “terminal” , “user equipment” and “UE” may be used interchangeably.
  • resource may refer to any resource for performing a communication, for example, a communication between a terminal device and a network device, such as a resource in time domain, a resource in frequency domain, a resource in space domain, a resource in code domain, or any other resource enabling a communication, and the like.
  • a resource in both frequency domain and time domain will be used as an example of a transmission resource for describing some example embodiments of the present disclosure. It is noted that example embodiments of the present disclosure are equally applicable to other resources in other domains.
  • sidelink refers to a communication link between terminal devices. Resources in sidelink may be configured by the network. Sidelink communication in unlicensed band may be a use case in industrial automation of a private network.
  • a PSFCH for sidelink communication is defined to carry HARQ feedback over the sidelink (at physical layer) from user equipment (UE) which is an intended recipient of a transmission over a physical sidelink shared channel (PSSCH) (henceforth also referred to an Rx UE) to a UE which performs the transmission (henceforth also referred to a Tx UE) .
  • PSSCH physical sidelink shared channel
  • PSFCH resources may be preconfigured for sidelink communication in unlicensed spectrum.
  • a sequence is transmitted in one physical resource block (PRB) repeated over two Orthogonal Frequency Division Multiplexing (OFDM) symbols, the first of which can be used for Automatic Generation Control (AGC) , near the end of a sidelink resource in a slot.
  • the sequence as base sequence may be (pre-) configured per sidelink resource pool.
  • an NR NB for example, gNB
  • the time occasion for PSFCH is determined from K.
  • HARQ feedback is in slot n+a where a is the smallest integer larger than or equal to K with the condition that slot n+a contains PSFCH resources.
  • MCSt multi-consecutive slots transmission
  • SL-U multi-consecutive slots transmission
  • MCSt may be used to reduce the need or frequency of listen-before-talk (LBT) performed by a UE to access a channel once it has acquired a channel occupancy time (COT) , to retain the COT to transmit data as much as possible and to be able to transmit data as soon as possible in the following slot.
  • LBT listen-before-talk
  • COT channel occupancy time
  • MCSt which is performed by a UE and continues during PSFCH symbols, may cause other UEs unable to use preconfigured PSFCH resources for PSFCHs.
  • Example embodiments of the present disclosure propose an enhancement scheme of dynamic resource configuration for sidelink communication.
  • a preconfigured resource for a sidelink feedback channel such as a PSFCH is impacted by a transmission (referred to as a first transmission) performed or initiated by a device such as a UE
  • the device which is preventing other devices from using the preconfigured resource (due to performing the first transmission which overlaps in a time domain with the preconfigured resource) dynamically configures (or indicates) a new resource that replaces the impacted preconfigured resource.
  • the new resource may also be referred to as a dynamic resource.
  • FIG. 1 illustrates an example communication environment 100 in which example embodiments of the present disclosure can be implemented.
  • a plurality of communication devices including a first device 110, a second device 120 and a third device 130, can communicate with each other, which are shown to be UEs, for example.
  • the first, second and third devices 110, 120 and 130 operating as terminal devices (such as UEs) and communicating in sidelink (SL) .
  • SL communications one of the devices 110, 120 and 130 is a transmitting (TX) device (or a transmitter)
  • another one of the devices 110, 120 and 130 is a receiving (RX) device (or a receiver)
  • TX transmitting
  • RX receiving
  • any or all of the devices 110, 120 and 130 may operate as network devices or other devices.
  • Communications in the communication environment 100 may be implemented according to any proper communication protocol (s) , comprising, but not limited to, cellular communication protocols of the first generation (1G) , the second generation (2G) , the third generation (3G) , the fourth generation (4G) , the fifth generation (5G) , the sixth generation (6G) , and the like, wireless local network communication protocols such as Institute for Electrical and Electronics Engineers (IEEE) 802.11 and the like, and/or any other protocols currently known or to be developed in the future.
  • s cellular communication protocols of the first generation (1G) , the second generation (2G) , the third generation (3G) , the fourth generation (4G) , the fifth generation (5G) , the sixth generation (6G) , and the like
  • wireless local network communication protocols such as Institute for Electrical and Electronics Engineers (IEEE) 802.11 and the like, and/or any other protocols currently known or to be developed in the future.
  • the communication may utilize any proper wireless communication technology, comprising but not limited to: Code Division Multiple Access (CDMA) , Frequency Division Multiple Access (FDMA) , Time Division Multiple Access (TDMA) , Frequency Division Duplex (FDD) , Time Division Duplex (TDD) , Multiple-Input Multiple-Output (MIMO) , Orthogonal Frequency Division Multiple (OFDM) , Discrete Fourier Transform spread OFDM (DFT-s-OFDM) and/or any other technologies currently known or to be developed in the future.
  • CDMA Code Division Multiple Access
  • FDMA Frequency Division Multiple Access
  • TDMA Time Division Multiple Access
  • FDD Frequency Division Duplex
  • TDD Time Division Duplex
  • MIMO Multiple-Input Multiple-Output
  • OFDM Orthogonal Frequency Division Multiple
  • DFT-s-OFDM Discrete Fourier Transform spread OFDM
  • the second and third devices 120 and 130 may communicate over a sidelink control channel such as a physical sidelink control channel (PSCCH) , a sidelink data channel such as PSSCH, and a sidelink feedback channel such as PSFCH.
  • a sidelink control channel such as a physical sidelink control channel (PSCCH)
  • PSSCH sidelink data channel
  • PSFCH sidelink feedback channel
  • FIG. 2A An example of a slot format of PSCCH, PSSCH, and PSFCH is shown in FIG. 2A.
  • the time resources for PSFCH may be (pre-) configured to occur once in every 1, 2, or 4 slots.
  • the HARQ feedback resource (on PSFCHs) may be derived from the resource location of PSCCH and/or PSSCH. For example, for a PSSCH transmission with its last symbol in slot n, HARQ feedback for a PSSCH with the last symbol in slot n may be in slot n+a where a is the smallest integer larger than or equal to K which is configured by the network.
  • FIG. 2B shows example mapping between PSSCHs and PSFCHs according to some example embodiments of the present disclosure.
  • the period of PSFCH resources is configured as 2, and K is configured as 2.
  • Two sets of resources 205 and 210 may be preconfigured for PSFCHs to carry HARQ feedback for earlier transmissions on PSSCHs.
  • a set of resources 205 or 210 may comprise a plurality of resources, for example, labeled as resource #0, ..., resource #7.
  • the first device 110 may perform a first transmission which overlaps in a time domain with the preconfigured resource for a PSFCH such as resource #1 in the set of resources 205 in FIG. 2B.
  • the first transmission may be a consecutive transmission such as MCSt and other transmissions using a channel occupation time (COT) .
  • COT channel occupation time
  • the first device 110 may choose to occupy all the symbols of a slot for PSFCHs by using rate matching.
  • the first device 110 may continuously capture the channel for the MCSt, which may improve resource efficiency.
  • the preconfigured resource for PSFCHs (or “PSFCH resource” ) overlapped by the first transmission performed by the first device 110 may not be used by other devices for their transmissions of PSFCHs (or “PSFCH transmissions” ) .
  • a transmission (referred to as a second transmission) in the preconfigured resource may be prevented by the first transmission.
  • FIG. 2C shows an example of prevention in a preconfigured PSFCH resource according to some example embodiments of the present disclosure.
  • the MCSt performed by the first device 110 occupies all the symbols of a slot (labeled as slot 2) in a resource 215 which overlaps with the set of resources 205 for PSFCHs.
  • other devices such as the second device 120 or the third device 130 may not use the set of resources 205 for PSFCH transmission.
  • the first device 110 configures a new resource to take the place of the impacted preconfigured resource.
  • FIG. 3 shows an example signaling diagram of process 300 for dynamically configuring a resource for a sidelink feedback channel according to some example embodiments of the present disclosure. For the purposes of discussion, the process 300 will be discussed with reference to FIG. 1.
  • the second device 120 performs (302) a transmission (referred to as a third transmission) to the third device 130 on a sidelink data channel such as a PSSCH.
  • the second device 120 may transmit to the third device 130 data on the PSSCH and signaling on a PSCCH and/or the PSSCH.
  • the third device 130 receives (304) the third transmission from the sidelink data channel.
  • the second device 120 operates as a transmitting device or transmitter
  • the third device 130 operates as a receiving device or a receiver.
  • the third device 130 may transmit feedback for the third transmission.
  • the feedback may be transmitted in a preconfigured resource on a sidelink feedback channel such as a PSFCH.
  • the first device 110 performs (306) the first transmission, such as MCSt and a transmission in a COT, which prevents the second transmission on the sidelink feedback channel.
  • the first transmission may occupy a resource (such as the resource 215 in FIG. 2C) overlapping in a time domain with a first preconfigured resource (such as resource #1 in the set of resources 205 in FIG. 2C) for the sidelink feedback channel.
  • the occupied resource and the first preconfigured resource may be in a resource block (RB) set.
  • the third device 130 may perform LBT over an RB set (such as 20MHz) before transmission.
  • the continuous first transmission from the first device 110 may span from a time point before the first preconfigured resource to a time point after the first preconfigured resource, which would make the LBT fail.
  • the first device 110 transmits (308) an indication of a new resource for the sidelink feedback channel.
  • the new resource may be dynamically configured by the first device 110 to take the place of the impacted preconfigured resource for the sidelink feedback channel. For example, based on its own resource selection for the first transmission (such as MCSt) and resources (pre-) configured by a network for sidelink feedback channels, the first device 110 may determine whether the first transmission impacts the second transmission in the first preconfigured resource.
  • a set of new resources may be configured by the first device 110 to replace a first set of preconfigured resources (such as the set of resources 205 in FIG. 2C) for sidelink feedback channels which contains the first preconfigured resource (such as resource #1 in the set of resources 205 in FIG. 2C) .
  • the new resource may be configured in a time occasion of a second set of preconfigured resources (such as the set of resources 210 in FIG. 2C) for sidelink feedback channels, next to the duration of the first transmission.
  • the set of new resources may be configured within a last one of a plurality of time intervals (such as slots) for the first transmission and after the first transmission.
  • the whole impacted preconfigured resources may be moved to the last slot of the first transmission, which is a suitable place such that latency requirements of PSFCH transmissions may be met.
  • An example configuration of the set of new resources is shown in FIG. 4.
  • the set of preconfigured resources 205 is dynamically moved to a set of dynamic resources 405 in a time occasion of the set of preconfigured resources 210 at the last slot of the first transmission.
  • the new resource may have a frequency offset with respect to the first preconfigured resource.
  • a frequency offset may be applied to the new resource with respect to the preconfigured resource to avoid collision with other transmissions that are mapped to the second set of preconfigured resources.
  • the new resource may be outside the second set of preconfigured resources.
  • a size of the set of new resources may be determined based on some factors such as channel busy ratio (CBR) .
  • the CBR may comprise CBR of a PSSCH and/or a PSFCH. For example, if such CBR is lower, which means that fewer PSFCH transmissions may be performed in the preconfigured resources, then a smaller size of the set of new resources may be configured. Otherwise, a larger size of the set of new resources may be configured.
  • CBR channel busy ratio
  • availability of resources for the set of new resources may be considered in determining size of the set of new resources. For example, if less resources may be used, a smaller size of the set of new resources may be configured. Otherwise, a larger size of the set of new resources may be configured.
  • required usage of resources in the first set of preconfigured resources may be considered. For example, the first device 110 may decode SCIs from other devices (which may indicate actual usage of PSFCH resources) and thus determined the usage required for resources in the first set of preconfigured resources. If the required usage is smaller, a smaller size of the set of new resources may be configured. Otherwise, a larger size of the set of new resources may be configured.
  • the size of the set of new resources may be set to be smaller than a size of the first set of preconfigured resources.
  • a first size of cyclic shift pairs (for example, ) for the set of new resources may be set to be larger than a second size of cyclic shift pairs for the first set of preconfigured resources to further improve resource efficiency.
  • the first size of cyclic shift pairs for the dynamic PSFCH resources may be set double of the second size of cyclic shift pairs for impacted PSFCH resources. Thus, the amount of dynamic PSFCH resources needed may be halved.
  • the new resource may be determined from the set of new resources according to positioning of the first preconfigured resource in the first set of preconfigured resources, based on the first size of cyclic shift pairs for the new resources and the second size of cyclic shift pairs for the preconfigured resources.
  • the set of new resources may be configured to have a half size of the preconfigured resources.
  • both resource #0 and resource #4 in the set of resources 205 may be mapped to resource #0 in the set of resources 405, both resource #1 and resource #5 in the set of resources 205 may be mapped to resource #1 in the set of resources 405, and so on.
  • the new resource may be associated with an identification (ID) of the first device to further avoid the collisions between the transmissions on the sidelink feedback channel.
  • ID an identification
  • the sequence of the sidelink feedback channel may be associated with the ID of the second device 120 performing the third transmission on the sidelink data channel.
  • the first device 110 may decode SCI (s) from the second device 120 and then obtain the ID of the second device 120. The first device 110 may know that the second device 120 may perform the third transmission on the sidelink data channel.
  • a frequency location of the new resource with respect to a starting frequency of the set of the new resources and a sequence of the new resource may be associated with at least one ID of at least one device including the first device 110 and/or the second device.
  • the first device 110 may configure the frequency and/or code (i.e. sequence) resource for the sidelink feedback channel based on its own ID and the ID of the second device 120 to further avoid the collisions between the second transmission from the third device 130 using the new resource and other transmissions using the resources overlapping with the new resource.
  • This indication may be transmitted in sidelink control information (SCI) .
  • SCI sidelink control information
  • the reuse of the SCI to indicate the new resource may minimize signaling overhead.
  • this indication may be included in SCI (s) from the first device 110 during the MCSt or the COT.
  • the SCI of the first slot of the MCSt which indicates that the MCSt transmission is ongoing and what is the duration of the MCSt, may be used to indicate the new resource for the sidelink feedback channel.
  • the indication of the new resource may be transmitted repeatedly in SCI within a plurality of time intervals for the first transmission, such as within each slot of the MCSt.
  • the first device 110 may repeatedly transmit (310) the indication of the new resource to further improve the transmission efficiency of the indication. This may increase the chance for other devices decoding the information of dynamic resources so that other devices can use the new resources for HARQ feedback promptly.
  • the indication of the new resource may be an explicit or implicit indication in the SCI.
  • some new field (s) of the SCI message may be used to explicitly indicate the new resource.
  • the indication may be associated with a time offset of the new resource.
  • the SCI may include the time offset (in slots) between the slot with the SCI transmitted and the slot of the new resource.
  • the time offset of the new resource may be a time offset with respect to the first preconfigured resource.
  • the latency requirements of the sidelink feedback channel may be used as a criterion to decide the time offset of the new resource.
  • the indication of the new resource may be associated with a frequency offset of the new resource.
  • the SCI includes the frequency offset of the new resources or the relative frequency offset (the frequency offset relative to the impacted preconfigured resources) .
  • the indication may be associated with a sequence for the sidelink feedback channel in the new resource.
  • the SCI may include the sequence employed by the sidelink feedback channel transmitted in the new resource.
  • the sequence may be associated with the ID of the first device 110 to avoid collisions.
  • the sequence may be associated with the ID of the second device 120.
  • the indication of the new resource may comprise an indication of the set of new resources which may be associated with at least one of a common time offset, a common frequency offset, or a common sequence for the set of new resources.
  • the indication of the new resource may be associated with a frequency offset of a starting frequency of the set of the new resources, or a frequency offset with respect to a starting frequency of the first set of preconfigured resources.
  • the new resource may be implicitly indicated by reusing the existing fields of the SCI message. For example, an indication for a duration of the first transmission in the SCI may be used to implicitly indicate that the set of new resources is configured in a time occasion of the second set of preconfigured resources for sidelink feedback channels, next to the duration of the first transmission.
  • the indication of the new resource may be transmitted separated from the first transmission.
  • the indication may be transmitted by the first device 110 before the first device 110 performing the MSCt or initiating the COT, which may be even transmitted before the PSSCH transmission.
  • a monitoring UE may receive the indication of the new resource and then know that feedback for the third transmission on the sidelink data channel may be transmitted using the new resource.
  • both the second device 120 and the third device 130 receive (312, 314) the indication of the new resource.
  • the first device 110 may transmit (310) the indication repeatedly
  • the second device 120 and the third device 130 may receive (316, 318) the indication of the new resource, repeatedly.
  • the third device 130 transmits (320) a feedback for the third transmission on the sidelink feedback channel in the new resource.
  • the second device 120 detects (322) the feedback in the new resource. In this way, the impact of possible COT loss due to interruption in PSFCH transmission may be reduced effectively and efficiently.
  • the third device 130 may transmit (324) the feedback using the first preconfigured resource. For example, before preconfigured resource, the third device 130 may perform LBT. If the LBT succeeds, the third device 130 may transmit the feedback for the third transmission from the second device 120. The second device 120 may detect (326) the feedback from the third device 130. In this way, the transmission efficiency of the feedback may be further improved.
  • the indication of the new resource may be carried in SCI (s) of the first device 110 performing MCSt (as an example of the first transmission) that will impact HARQ feedback (as an example of the second transmission) from the third device 130 to the second device 120 via a PSFCH as an example of the sidelink feedback channel.
  • FIG. 5A shows an example process 500 at the third device 130 as a receiving device according to some example embodiments of the present disclosure.
  • the third device 130 may decode SCI (s) from the first device 110 performing MCSt.
  • the third device 130 may check whether a new resource is configured. For example, the third device 130 may check whether its PSFCH transmission will be impacted by the MCSt and then know that it may wait until the next available PSFCH that does not overlap with the current MCSt.
  • the third device 130 may perform LBT before the preconfigured PSFCH resource. If the LBT fails, the process 500 returns to block 502 where the third device 130 may continue decoding SCI (s) from the first device 110. If the LBT succeeds, at block 508, the third device 130 may transmit feedback in the preconfigured resource. If it is determined that a new resource is configured, at block 510, the third device 130 may transmit feedback in the new resource. For example, the third device 130 may transmit the PSFCH containing HARQ feedback to the second device 120. Optionally, in the case that a new resource is configured, the third device 130 may also perform the LBT and then transmit the feedback if the LBT succeeds, so as to improve the transmission efficiency of the feedback.
  • FIG. 5B shows an example process 520 at the second device 120 as a transmitting device according to some example embodiments of the present disclosure.
  • the second device 120 may decode SCI (s) from the first device 110 performing MCSt.
  • the second device 120 may check whether a new resource is configured. For example, the second device 120 may check whether its PSFCH transmission will be impacted by the MCSt and then know that it may wait until the next available PSFCH resource that does not overlap with the current MCSt.
  • the second device 120 may try to detect PSFCH from the third device 130. At block 526, the second device 120 may determine whether the feedback is detected in the preconfigured resource. If the detection fails, the process 520 returns to block 522 where the second device 120 may continue decoding SCI (s) from the first device 110 performing MCSt.
  • the second device 120 may detect feedback in the new resource.
  • the second device 120 may also detect the feedback in the preconfigured resource even if a new resource is configured, so as to further improve the transmission efficiency of the feedback.
  • FIG. 6 shows a flowchart of an example method 600 in accordance with some example embodiments of the present disclosure. For the purpose of discussion, the method 600 will be described from the perspective of the first device 110 in FIG. 1.
  • the first device 110 performs a first transmission, the first transmission preventing a second transmission on a sidelink feedback channel in a first preconfigured resource.
  • the first device 110 transmits an indication of a new resource for the sidelink feedback channel.
  • the first transmission may occupy a resource overlapping in a time domain with the first preconfigured resource for the sidelink feedback channel, and the occupied resource and the first preconfigured resource are in a resource block set.
  • the new resource may be configured after the first transmission.
  • the new resource may be configured within a last one of a plurality of time intervals for the first transmission and after the first transmission.
  • the indication may be associated with at least one of: a time offset of the new resource, a frequency offset of the new resource, or a sequence for the sidelink feedback channel in the new resource.
  • the sequence may be associated with at least one identification of at least one device.
  • the at least one device may include a first device performing the first transmission, and/or a second device performing a third transmission on a sidelink data channel associated with the sidelink feedback channel.
  • the new resource may be determined from a set of new resources for sidelink feedback channels.
  • the set of new resources may be configured to replace a first set of preconfigured resources for the sidelink feedback channels, and the first set of preconfigured resources may contain the first preconfigured resource and have a time occasion of the first preconfigured resource.
  • the indication of the new resource may comprise an indication of the set of new resources associated with at least one of a common time offset, a common frequency offset, or a common sequence for the set of new resources.
  • the indication may be transmitted in sidelink control information.
  • the indication may be transmitted repeatedly in sidelink control information within a plurality of time intervals for the first transmission.
  • the indication may comprise an indication for a duration of the first transmission in the sidelink control information, to implicitly indicate that the new resource is configured in a time occasion of a second set of preconfigured resources for sidelink feedback channels, next to the duration of the first transmission.
  • the new resource may have a frequency offset with respect to the first preconfigured resource, and/or the new resource is outside the second set of preconfigured resources.
  • a size of the set of new resources may be determined based on at least one of: channel busy ratio, availability of resources for the set of new resources, or required usage of resources in the first set of preconfigured resources.
  • the size of the set of new resources may be set to be smaller than a size of the first set of preconfigured resources.
  • the indication of the new resource may be associated with a frequency offset of a starting frequency of the set of the new resources.
  • the indication of the new resource may be associated with a frequency offset with respect to a starting frequency of the first set of preconfigured resources.
  • a first size of cyclic shift pairs for the set of new resources may be set to be larger than a second size of cyclic shift pairs for the first set of preconfigured resources.
  • the new resource may be determined from the set of new resources according to positioning of the first preconfigured resource in the first set of preconfigured resources, based on the first and second sizes of cyclic shift pairs.
  • a frequency location of the new resource with respect to a starting frequency of the set of the new resources and a sequence of the new resource may be associated with at least one identification of at least one device.
  • the at least one device may include a first device performing the first transmission, and/or a second device performing a third transmission on a sidelink data channel associated with the sidelink feedback channel.
  • the first transmission may be a consecutive transmission.
  • FIG. 7 shows a flowchart of an example method 700 in accordance with some example embodiments of the present disclosure. For the purpose of discussion, the method 700 will be described from the perspective of the third device 130 in FIG. 1.
  • the third device 130 receives a third transmission on a sidelink data channel.
  • the third device 130 receives an indication of a new resource for a sidelink feedback channel. The indication is received from a first device performing a first transmission, the first transmission preventing a second transmission of feedback for the third transmission on a sidelink feedback channel in a first preconfigured resource.
  • the third device 130 transmits, based on the indication, in the new resource, feedback for the third transmission.
  • the first transmission may occupy a resource overlapping in a time domain with the first preconfigured resource for the sidelink feedback channel, and the occupied resource and the first preconfigured resource are in a resource block set.
  • the new resource may be configured after the first transmission.
  • the new resource may be configured within a last one of a plurality of time intervals for the first transmission and after the first transmission.
  • the indication may be associated with at least one of: a time offset of the new resource, a frequency offset of the new resource, or a sequence for the sidelink feedback channel in the new resource.
  • the sequence may be associated with at least one identification of at least one device.
  • the at least one device may include the first device, and/or a second device performing the third transmission on the sidelink data channel.
  • the new resource may be determined from a set of new resources for sidelink feedback channels.
  • the set of new resources may be configured to replace a first set of preconfigured resources for the sidelink feedback channels, and the first set of preconfigured resources may contain the first preconfigured resource and have a time occasion of the first preconfigured resource.
  • the indication of the new resource may comprise an indication of the set of new resources associated with at least one of a common time offset, a common frequency offset, or a common sequence for the set of new resources.
  • the indication may be received in sidelink control information.
  • the indication may be received in sidelink control information within at least one time interval of a plurality of time intervals for the first transmission.
  • the indication may comprise an indication for a duration of the first transmission in the sidelink control information, to implicitly indicate that the new resource is configured in a time occasion of a second set of preconfigured resources for sidelink feedback channels, next to the duration of the first transmission.
  • the new resource may have a frequency offset with respect to the first preconfigured resource, and/or the new resource is outside the second set of preconfigured resources.
  • the indication of the new resource may be associated with a frequency offset of a starting frequency of the set of the new resources.
  • the indication of the new resource may be associated with a frequency offset with respect to a starting frequency of the first set of preconfigured resources.
  • a first size of cyclic shift pairs for the set of new resources may be set to be larger than a second size of cyclic shift pairs for the first set of preconfigured resources.
  • a frequency location of the new resource with respect to a starting frequency of the set of the new resources and a sequence of the new resource may be associated with at least one identification of at least one device.
  • the at least one device may include a first device performing the first transmission, and/or a second device performing a third transmission on a sidelink data channel associated with the sidelink feedback channel.
  • the first transmission may be a consecutive transmission.
  • FIG. 8 shows a flowchart of an example method 800 in accordance with some example embodiments of the present disclosure. For the purpose of discussion, the method 800 will be described from the perspective of the second device 120 in FIG. 1.
  • the second device 120 performs a third transmission on a sidelink data channel.
  • the second device 120 receives an indication of a new resource for a sidelink feedback channel. The indication may be received from a first device performing a first transmission, the first transmission preventing a second transmission of feedback for the third transmission on a sidelink feedback channel in a first preconfigured resource.
  • the second device 120 detects, based on the indication, in the new resource, feedback for the third transmission.
  • the first transmission may occupy a resource overlapping in a time domain with the first preconfigured resource for the sidelink feedback channel, and the occupied resource and the first preconfigured resource are in a resource block set.
  • the second device 120 may detect the feedback in the first preconfigured resource for the sidelink feedback channel.
  • the new resource may be configured after the first transmission.
  • the new resource may be configured within a last one of a plurality of time intervals for the first transmission and after the first transmission.
  • the indication may be associated with at least one of: a time offset of the new resource, a frequency offset of the new resource, or a sequence for the sidelink feedback channel in the new resource.
  • the sequence may be associated with at least one identification of at least one device.
  • the at least one device may include the first device, and/or a second device performing the third transmission on the sidelink data channel.
  • the new resource may be determined from a set of new resources for sidelink feedback channels.
  • the set of new resources may be configured to replace a first set of preconfigured resources for the sidelink feedback channels, and the first set of preconfigured resources may contain the first preconfigured resource and have a time occasion of the first preconfigured resource.
  • the indication of the new resource may comprise an indication of the set of new resources associated with at least one of a common time offset, a common frequency offset, or a common sequence for the set of new resources.
  • the indication may be received in sidelink control information.
  • the indication may be received in sidelink control information within at least one time interval of a plurality of time intervals for the first transmission.
  • the indication may comprise an indication for a duration of the first transmission in the sidelink control information, to implicitly indicate that the new resource is configured in a time occasion of a second set of preconfigured resources for sidelink feedback channels, next to the duration of the first transmission.
  • the new resource may have a frequency offset with respect to the first preconfigured resource, and/or the new resource is outside the second set of preconfigured resources.
  • the indication of the new resource may be associated with a frequency offset of a starting frequency of the set of the new resources.
  • the indication of the new resource may be associated with a frequency offset with respect to a starting frequency of the first set of preconfigured resources.
  • a first size of cyclic shift pairs for the set of new resources may be set to be larger than a second size of cyclic shift pairs for the first set of preconfigured resources.
  • a frequency location of the new resource with respect to a starting frequency of the set of the new resources and a sequence of the new resource may be associated with at least one identification of at least one device.
  • the at least one device may include a first device performing the first transmission, and/or a second device performing a third transmission on a sidelink data channel associated with the sidelink feedback channel.
  • the first transmission may be a consecutive transmission.
  • an apparatus capable of performing any of the method 600 may comprise means for performing the respective operations of the method 600.
  • the means may be implemented in any suitable form.
  • the means may be implemented in a circuitry or software module.
  • the apparatus may be implemented as or included in the first device 110 in FIG. 1.
  • the apparatus comprises means for performing a first transmission, the first transmission preventing a second transmission on a sidelink feedback channel in a first preconfigured resource; and means for transmitting an indication of a new resource for the sidelink feedback channel.
  • the first transmission occupies a resource overlapping in a time domain with the first preconfigured resource for the sidelink feedback channel, and the occupied resource and the first preconfigured resource are in a resource block set.
  • the new resource is configured after the first transmission.
  • the new resource is configured within a last one of a plurality of time intervals for the first transmission and after the first transmission.
  • the indication is associated with at least one of: a time offset of the new resource, a frequency offset of the new resource, or a sequence for the sidelink feedback channel in the new resource.
  • the sequence is associated with at least one identification of at least one device.
  • the new resource is determined from a set of new resources for sidelink feedback channels, and the set of new resources may be configured to replace a first set of preconfigured resources for the sidelink feedback channels, the first set of preconfigured resources containing the first preconfigured resource and having a time occasion of the first preconfigured resource.
  • the indication of the new resource comprises an indication of the set of new resources associated with at least one of a common time offset, a common frequency offset, or a common sequence for the set of new resources.
  • the indication is transmitted in sidelink control information.
  • the indication is transmitted repeatedly in sidelink control information within a plurality of time intervals for the first transmission.
  • the indication comprises an indication for a duration of the first transmission in the sidelink control information, to implicitly indicate that the new resource is configured in a time occasion of a second set of preconfigured resources for sidelink feedback channels, next to the duration of the first transmission.
  • the new resource has a frequency offset with respect to the first preconfigured resource, and/or the new resource is outside the second set of preconfigured resources.
  • a size of the set of new resources is determined based on at least one of: channel busy ratio, availability of resources for the set of new resources, or required usage of resources in the first set of preconfigured resources.
  • the size of the set of new resources is set to be smaller than a size of the first set of preconfigured resources.
  • the indication of the new resource is associated with a frequency offset of a starting frequency of the set of the new resources.
  • the indication of the new resource is associated with a frequency offset with respect to a starting frequency of the first set of preconfigured resources.
  • a first size of cyclic shift pairs for the set of new resources is set to be larger than a second size of cyclic shift pairs for the first set of preconfigured resources.
  • the new resource is determined from the set of new resources according to positioning of the first preconfigured resource in the first set of preconfigured resources, based on the first and second sizes of cyclic shift pairs.
  • a frequency location of the new resource with respect to a starting frequency of the set of the new resources and a sequence of the new resource are associated with at least one identification of at least one device.
  • the at least one device includes a first device performing the first transmission, and/or a second device performing a third transmission on a sidelink data channel associated with the sidelink feedback channel.
  • the first transmission is a consecutive transmission.
  • the apparatus further comprises means for performing other operations in some example embodiments of the method 600 or the first device 110.
  • the means comprises at least one processor; and at least one memory storing instructions that, when executed by the at least one processor, cause the performance of the apparatus.
  • an apparatus capable of performing any of the method 700 may comprise means for performing the respective operations of the method 700.
  • the means may be implemented in any suitable form.
  • the means may be implemented in a circuitry or software module.
  • the apparatus may be implemented as or included in the third device 130 in FIG. 1.
  • the apparatus comprises means for receiving a third transmission on a sidelink data channel; means for receiving an indication of a new resource for a sidelink feedback channel, wherein the indication is received from a first device performing a first transmission, the first transmission preventing a second transmission of feedback for the third transmission on a sidelink feedback channel in a first preconfigured resource; and means for transmitting, based on the indication, in the new resource, feedback for the third transmission.
  • the first transmission occupies a resource overlapping in a time domain with the first preconfigured resource for the sidelink feedback channel, and the occupied resource and the first preconfigured resource are in a resource block set.
  • the new resource is configured after the first transmission.
  • the new resource is configured within a last one of a plurality of time intervals for the first transmission and after the first transmission.
  • the indication is associated with at least one of: a time offset of the new resource, a frequency offset of the new resource, or a sequence for the sidelink feedback channel in the new resource.
  • the sequence is associated with at least one identification of at least one device.
  • the new resource is determined from a set of new resources for sidelink feedback channels.
  • the set of new resources is configured to replace a first set of preconfigured resources for the sidelink feedback channels, the first set of preconfigured resources containing the first preconfigured resource and having a time occasion of the first preconfigured resource.
  • the indication of the new resource comprises an indication of the set of new resources associated with at least one of a common time offset, a common frequency offset, or a common sequence for the set of new resources.
  • the indication is received in sidelink control information.
  • the indication is received in sidelink control information within at least one time interval of a plurality of time intervals for the first transmission.
  • the indication comprises an indication for a duration of the first transmission in the sidelink control information, to implicitly indicate that the new resource is configured in a time occasion of a second set of preconfigured resources for sidelink feedback channels, next to the duration of the first transmission.
  • the new resource has a frequency shift with respect to the first preconfigured resource, and/or the new resource is outside the second set of preconfigured resources.
  • the indication of the new resource is associated with a frequency offset of a starting frequency of the set of the new resources.
  • the indication of the new resource is associated with a frequency offset with respect to a starting frequency of the first set of preconfigured resources.
  • a first size of cyclic shift pairs for the set of new resources is set to be larger than a second size of cyclic shift pairs for the first set of preconfigured resources.
  • a frequency location of the new resource with respect to a starting frequency of the set of the new resources and a sequence of the new resource is associated with at least one identification of at least one device.
  • the at least one device includes a first device performing the first transmission, and/or a second device performing a third transmission on a sidelink data channel associated with the sidelink feedback channel.
  • the first transmission is a consecutive transmission.
  • the apparatus further comprises means for performing other operations in some example embodiments of the method 700 or the third device 130.
  • the means comprises at least one processor; and at least one memory storing instructions that, when executed by the at least one processor, cause the performance of the apparatus.
  • an apparatus capable of performing any of the method 800 may comprise means for performing the respective operations of the method 800.
  • the means may be implemented in any suitable form.
  • the means may be implemented in a circuitry or software module.
  • the apparatus may be implemented as or included in the second device 120 in FIG. 1.
  • the apparatus comprises means for performing a third transmission on a sidelink data channel; means for receiving an indication of a new resource for a sidelink feedback channel, wherein the indication is received from a first device performing a first transmission, the first transmission preventing a second transmission of feedback for the third transmission on a sidelink feedback channel in a first preconfigured resource; and means for detecting, based on the indication, in the new resource, feedback for the third transmission.
  • the first transmission occupies a resource overlapping in a time domain with the first preconfigured resource for the sidelink feedback channel, and the occupied resource and the first preconfigured resource are in a resource block set.
  • the apparatus further comprises: means for detecting the feedback in the first preconfigured resource for the sidelink feedback channel.
  • the new resource is configured after the first transmission.
  • the new resource is configured within a last one of a plurality of time intervals for the first transmission and after the first transmission.
  • the indication is associated with at least one of: a time offset of the new resource, a frequency offset of the new resource, or a sequence for the sidelink feedback channel in the new resource.
  • the sequence is associated with at least one identification of at least one device.
  • the new resource is determined from a set of new resources for sidelink feedback channels.
  • the set of new resources is configured to replace a first set of preconfigured resources for the sidelink feedback channels, the first set of preconfigured resources containing the first preconfigured resource and having a time occasion of the first preconfigured resource.
  • the indication of the new resource comprises an indication of the set of new resources associated with at least one of a common time offset, a common frequency offset, or a common sequence for the set of new resources.
  • the indication is received in sidelink control information.
  • the indication is received in sidelink control information within at least one time interval of a plurality of time intervals for the first transmission.
  • the indication comprises an indication for a duration of the first transmission in the sidelink control information, to implicitly indicate that the new resource is configured in a time occasion of a second set of preconfigured resources for sidelink feedback channels, next to the duration of the first transmission.
  • the new resource has a frequency offset with respect to the first preconfigured resource, and/or the new resource is outside the second set of preconfigured resources.
  • the indication of the new resource is associated with a frequency offset of a starting frequency of the set of the new resources.
  • the indication of the new resource is associated with a frequency offset with respect to a starting frequency of the first set of preconfigured resources.
  • a first size of cyclic shift pairs for the set of new resources is set to be larger than a second size of cyclic shift pairs for the first set of preconfigured resources.
  • a frequency location of the new resource with respect to a starting frequency of the set of the new resources and a sequence of the new resource are associated with at least one identification of at least one device.
  • the at least one device includes a first device performing the first transmission, and/or a second device performing a third transmission on a sidelink data channel associated with the sidelink feedback channel.
  • the first transmission is a consecutive transmission.
  • the apparatus further comprises means for performing other operations in some example embodiments of the method 800 or the second device 120.
  • the means comprises at least one processor; and at least one memory storing instructions that, when executed by the at least one processor, cause the performance of the apparatus.
  • FIG. 9 is a simplified block diagram of a device 900 that is suitable for implementing example embodiments of the present disclosure.
  • the device 900 may be provided to implement a communication device, for example, the first device 110, or the second device 120, or the third device 130 as shown in FIG. 1.
  • the device 900 includes one or more processors 910, one or more memories 920 coupled to the processor 910, and one or more communication modules 940 coupled to the processor 910.
  • the communication module 940 is for bidirectional communications.
  • the communication module 940 has one or more communication interfaces to facilitate communication with one or more other modules or devices.
  • the communication interfaces may represent any interface that is necessary for communication with other network elements.
  • the communication module 940 may include at least one antenna.
  • the processor 910 may be of any type suitable to the local technical network and may include one or more of the following: general purpose computers, special purpose computers, microprocessors, digital signal processors (DSPs) and processors based on multicore processor architecture, as non-limiting examples.
  • the device 900 may have multiple processors, such as an application specific integrated circuit chip that is slaved in time to a clock which synchronizes the main processor.
  • the memory 920 may include one or more non-volatile memories and one or more volatile memories.
  • the non-volatile memories include, but are not limited to, a Read Only Memory (ROM) 924, an electrically programmable read only memory (EPROM) , a flash memory, a hard disk, a compact disc (CD) , a digital video disk (DVD) , an optical disk, a laser disk, and other magnetic storage and/or optical storage.
  • ROM Read Only Memory
  • EPROM electrically programmable read only memory
  • flash memory a hard disk
  • CD compact disc
  • DVD digital video disk
  • optical disk a laser disk
  • RAM random access memory
  • a computer program 930 includes computer executable instructions that are executed by the associated processor 910.
  • the instructions of the program 930 may include instructions for performing operations/acts of some example embodiments of the present disclosure.
  • the program 930 may be stored in the memory, e.g., the ROM 924.
  • the processor 910 may perform any suitable actions and processing by loading the program 930 into the RAM 922.
  • the example embodiments of the present disclosure may be implemented by means of the program 930 so that the device 900 may perform any process of the disclosure as discussed with reference to FIG. 1 to FIG. 8.
  • the example embodiments of the present disclosure may also be implemented by hardware or by a combination of software and hardware.
  • the program 930 may be tangibly contained in a computer readable medium which may be included in the device 900 (such as in the memory 920) or other storage devices that are accessible by the device 900.
  • the device 900 may load the program 930 from the computer readable medium to the RAM 922 for execution.
  • the computer readable medium may include any types of non-transitory storage medium, such as ROM, EPROM, a flash memory, a hard disk, CD, DVD, and the like.
  • the term “non-transitory, ” as used herein, is a limitation of the medium itself (i.e., tangible, not a signal) as opposed to a limitation on data storage persistency (e.g., RAM vs. ROM) .
  • FIG. 10 shows an example of the computer readable medium 1000 which may be in form of CD, DVD or other optical storage disk.
  • the computer readable medium 1000 has the program 930 stored thereon.
  • various embodiments of the present disclosure may be implemented in hardware or special purpose circuits, software, logic or any combination thereof. Some aspects may be implemented in hardware, while other aspects may be implemented in firmware or software which may be executed by a controller, microprocessor or other computing device. While various aspects of embodiments of the present disclosure are illustrated and described as block diagrams, flowcharts, or using some other pictorial representations, it is to be understood that the block, apparatus, system, technique or method described herein may be implemented in, as non-limiting examples, hardware, software, firmware, special purpose circuits or logic, general purpose hardware or controller or other computing devices, or some combination thereof.
  • Some example embodiments of the present disclosure also provide at least one computer program product tangibly stored on a computer readable medium, such as a non-transitory computer readable medium.
  • the computer program product includes computer-executable instructions, such as those included in program modules, being executed in a device on a target physical or virtual processor, to carry out any of the methods as described above.
  • program modules include routines, programs, libraries, objects, classes, components, data structures, or the like that perform particular tasks or implement particular abstract data types.
  • the functionality of the program modules may be combined or split between program modules as desired in various embodiments.
  • Machine-executable instructions for program modules may be executed within a local or distributed device. In a distributed device, program modules may be located in both local and remote storage media.
  • Program code for carrying out methods of the present disclosure may be written in any combination of one or more programming languages.
  • the program code may be provided to a processor or controller of a general purpose computer, special purpose computer, or other programmable data processing apparatus, such that the program code, when executed by the processor or controller, cause the functions/operations specified in the flowcharts and/or block diagrams to be implemented.
  • the program code may execute entirely on a machine, partly on the machine, as a stand-alone software package, partly on the machine and partly on a remote machine or entirely on the remote machine or server.
  • the computer program code or related data may be carried by any suitable carrier to enable the device, apparatus or processor to perform various processes and operations as described above.
  • Examples of the carrier include a signal, computer readable medium, and the like.
  • the computer readable medium may be a computer readable signal medium or a computer readable storage medium.
  • a computer readable medium may include but not limited to an electronic, magnetic, optical, electromagnetic, infrared, or semiconductor system, apparatus, or device, or any suitable combination of the foregoing. More specific examples of the computer readable storage medium would include 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) , an optical fiber, a portable compact disc read-only memory (CD-ROM) , an optical storage device, a magnetic storage device, or any suitable combination of the foregoing.

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  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Mobile Radio Communication Systems (AREA)

Abstract

Des modes de réalisation donnés à titre d'exemple de la présente divulgation concernent des procédés, des dispositifs, des appareils et un support de stockage lisible par ordinateur destinés à une configuration de ressource dynamique pour une rétroaction de liaison latérale. Un procédé consiste à effectuer une première transmission, la première transmission empêchant une deuxième transmission sur un canal de rétroaction de liaison latérale dans une première ressource préconfigurée ; et à transmettre une indication d'une nouvelle ressource pour le canal de rétroaction de liaison latérale.
PCT/CN2023/076274 2023-02-15 2023-02-15 Configuration de ressource dynamique pour rétroaction de liaison latérale Ceased WO2024168620A1 (fr)

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CN202380091285.1A CN120530705A (zh) 2023-02-15 2023-02-15 用于侧链路反馈的动态资源配置
PCT/CN2023/076274 WO2024168620A1 (fr) 2023-02-15 2023-02-15 Configuration de ressource dynamique pour rétroaction de liaison latérale

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EP3820062A2 (fr) * 2019-11-07 2021-05-12 Apple Inc. Traitement des informations de commande de liaison latérale
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US20200313805A1 (en) * 2019-03-26 2020-10-01 Kt Corporation Method and apparatus for transmitting and receiving sidelink harq feedback information
US20220046628A1 (en) * 2019-04-30 2022-02-10 Fujitsu Limited Methods and apparatuses for transmitting and receiving sidelink data
US20210105126A1 (en) * 2019-10-02 2021-04-08 Comcast Cable Communications, Llc Feedback for Wireless Communications
EP3820062A2 (fr) * 2019-11-07 2021-05-12 Apple Inc. Traitement des informations de commande de liaison latérale

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