WO2020237521A1 - Gestion des ressources dans la communication latérale - Google Patents

Gestion des ressources dans la communication latérale Download PDF

Info

Publication number
WO2020237521A1
WO2020237521A1 PCT/CN2019/088981 CN2019088981W WO2020237521A1 WO 2020237521 A1 WO2020237521 A1 WO 2020237521A1 CN 2019088981 W CN2019088981 W CN 2019088981W WO 2020237521 A1 WO2020237521 A1 WO 2020237521A1
Authority
WO
WIPO (PCT)
Prior art keywords
resource
message
transport block
released
assigned
Prior art date
Application number
PCT/CN2019/088981
Other languages
English (en)
Inventor
Yong Liu
Dong Li
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 PCT/CN2019/088981 priority Critical patent/WO2020237521A1/fr
Publication of WO2020237521A1 publication Critical patent/WO2020237521A1/fr

Links

Images

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/02—Selection of wireless resources by user or terminal
    • 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
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W76/00—Connection management
    • H04W76/30—Connection release
    • H04W76/34—Selective release of ongoing connections
    • 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

Definitions

  • Embodiments of the present disclosure generally relate to the field of telecommunication and in particular, to a method, device, apparatus and computer readable storage medium for resource management in a sidelink communication.
  • V2X communications are enabled in 5G New Radio (NR) .
  • NR 5G New Radio
  • a sidelink transmission via a physical sidelink control channel (PSCCH) and a physical sidelink share channel (PSSCH) has been studied to enable communication between terminal devices.
  • NR V2X sidelink supports two resource allocation modes: mode 1 where sidelink resource is allocated by a network device dynamically or semi-statically, and mode 2 where a terminal device autonomously selects the sidelink resource.
  • mode 1 where sidelink resource is allocated by a network device dynamically or semi-statically
  • mode 2 where a terminal device autonomously selects the sidelink resource.
  • diverse data traffic needs to be supported, e.g. periodic traffic with large packet size variation.
  • an improved solution for resource management in mode 1 needs to be designed accordingly.
  • example embodiments of the present disclosure provide a solution for resource management in a sidelink communication.
  • a method comprises determining, by a first device, whether a resource assigned to the first device can be released; and in response to a determination that the resource can be released, transmitting a message from the first device to a second device over a direct communication link between the first and second devices, the message indicating availability of the resource for use by the second device.
  • a method comprises receiving, by a second device, a message from a first device over a direct communication link between the first and second devices, the message indicating availability of a resource assigned to the first device for use by the second device; and using the resource for aperiodic transmission.
  • a method comprises receiving, by a third device serving a first device, information on traffic characteristic parameters from the first device, the traffic characteristic parameters at least comprising a transport block size range; and assigning a periodic resource to the first device based on an upper limit in the transport block size range.
  • a method comprises determining, by a first device, whether a resource assigned to the first device can be released; and in response to a determination that the resource can be released, transmitting, to a third device serving the first device, a message indicating availability of the resource for use by a second device.
  • a method comprises receiving, by a third device serving a first device, a message from the first device, the message indicating availability of a resource assigned to the first device for use by a second device; and assigning the resource to the second device for use in transmission.
  • a device comprising at least one processor; and at least one memory including computer program codes; the at least one memory and the computer program codes are configured to, with the at least one processor, cause the device to: determine, by a first device, whether a resource assigned to the first device can be released; and in response to a determination that the resource can be released, transmit a message from the first device to a second device over a direct communication link between the first and second devices, the message indicating availability of the resource for use by the second device.
  • a device comprising at least one processor; and at least one memory including computer program codes; the at least one memory and the computer program codes are configured to, with the at least one processor, cause the device to: receive, by a second device, a message from a first device over a direct communication link between the first and second devices, the message indicating availability of a resource assigned to the first device for use by the second device; and use the resource for aperiodic transmission.
  • a device comprising at least one processor; and at least one memory including computer program codes; the at least one memory and the computer program codes are configured to, with the at least one processor, cause the device to: receive, by a third device serving a first device, information on traffic characteristic parameters from the first device, the traffic characteristic parameters at least comprising a transport block size range; and assign a periodic resource to the first device based on an upper limit in the transport block size range.
  • a device comprising at least one processor; and at least one memory including computer program codes; the at least one memory and the computer program codes are configured to, with the at least one processor, cause the device to: determine, by a first device, whether a resource assigned to the first device can be released; and in response to a determination that the resource can be released, transmit, to a third device serving the first device, a message indicating availability of the resource for use by a second device.
  • a device comprising at least one processor; and at least one memory including computer program codes; the at least one memory and the computer program codes are configured to, with the at least one processor, cause the device to: receive, by a third device serving a first device, a message from the first device, the message indicating availability of a resource assigned to the first device for use by a second device; and assign the resource to the second device for use in transmission.
  • an apparatus comprising means for determining, by a first device, whether a resource assigned to the first device can be released; and means for transmitting, in response to a determination that the resource can be released, a message from the first device to a second device over a direct communication link between the first and second devices, the message indicating availability of the resource for use by the second device.
  • an apparatus comprising means for receiving, by a second device, a message from a first device over a direct communication link between the first and second devices, the message indicating availability of a resource assigned to the first device for use by the second device; and means for using the resource for aperiodic transmission.
  • an apparatus comprising means for receiving, by a third device serving a first device, information on traffic characteristic parameters from the first device, the traffic characteristic parameters at least comprising a transport block size range; and means for assigning a periodic resource to the first device based on an upper limit in the transport block size range.
  • an apparatus comprising means for determining, by a first device, whether a resource assigned to the first device can be released; and means for transmitting, in response to a determination that the resource can be released, a message to a third device serving the first device, the message indicating availability of the resource for use by a second device.
  • an apparatus comprising means for receiving, by a third device serving a first device, a message from the first device, the message indicating availability of a resource assigned to the first device for use by a second device; and means for assigning the resource to the second device for use in transmission.
  • a non-transitory computer readable medium comprising program instructions for causing an apparatus to perform at least the method according to any one of the above first to fifth aspects.
  • Fig. 1 illustrates an example communication network in which embodiments of the present disclosure may be implemented
  • Fig. 2 illustrates a flowchart illustrating a process for resource management according to a first example embodiment of the present disclosure
  • Fig. 3 illustrates a flowchart of a method implemented at a first device according to the first example embodiment of the present disclosure
  • Fig. 4 illustrates a flowchart of a method implemented at a second device according to the first example embodiment of the present disclosure
  • Fig. 5 illustrates a flowchart of a method implemented at a third device according to the first example embodiment of the present disclosure
  • Fig. 6 illustrates a flowchart illustrating a process for resource management according to a second example embodiment of the present disclosure
  • Fig. 7 illustrates a flowchart of a method implemented at a first device according to the second example embodiment of the present disclosure
  • Fig. 8 illustrates a flowchart of a method implemented at a third device according to the second example embodiment of the present disclosure
  • Fig. 9 illustrates a flowchart illustrating a process for resource management according to a third example embodiment of the present disclosure
  • Fig. 10 illustrates a flowchart of a method implemented at a first device according to the third example embodiment of the present disclosure
  • Fig. 11 illustrates a flowchart of a method implemented at a third device according to the third example embodiment of the present disclosure
  • Fig. 12 illustrates a simplified block diagram of an apparatus that is suitable for implementing embodiments of the present disclosure.
  • Fig. 13 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 and second etc. 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.
  • 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 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.
  • 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 future 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 future 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 a
  • 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) , a NR next generation NodeB (also referred to as a gNB) , a Remote Radio Unit (RRU) , a radio header (RH) , a remote radio head (RRH) , a relay, a low power node such as a femto, a pico, and so forth, depending on the applied terminology and technology.
  • An RAN split architecture comprises a gNB-CU (Centralized unit, hosting RRC, SDAP and PDCP) controlling a plurality of gNB-DUs (Distributed unit, hosting RLC, MAC and PHY) .
  • 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/
  • a user equipment apparatus such as a cell phone or tablet computer or laptop computer or desktop computer or mobile IoT device or fixed IoT device
  • This user equipment apparatus can, for example, be furnished with corresponding capabilities as described in connection with the fixed and/or the wireless network node (s) , as appropriate.
  • the user equipment apparatus may be the user equipment and/or or a control device, such as a chipset or processor, configured to control the user equipment when installed therein. Examples of such functionalities include the bootstrapping server function and/or the home subscriber server, which may be implemented in the user equipment apparatus by providing the user equipment apparatus with software configured to cause the user equipment apparatus to perform from the point of view of these functions/nodes.
  • the transmitting device Upon a packet arrives at a transmitting device in sidelink communication, the transmitting device transmits a schedule request (SR) to a network device serving the transmitting device and the network device responds with an uplink grant to the transmitting device. Then the transmitting device transmits a buffer status report (BSR) to the network device. After performing scheduling, the network device transmits resource allocation information to the transmitting device via downlink control information (DCI) .
  • SR schedule request
  • BSR buffer status report
  • DCI downlink control information
  • Embodiments of the present disclosure provide an improved solution for resource management, so as to solve the above problems and one or more of other potential problems.
  • a transmitting device in sidelink communication determines a surplus or lack of a resource assigned to the transmitting device and informs the surplus or lack of the resource to other devices so that the surplus resource can be reused by the other devices or the lack resource can be reassigned to the transmitting device.
  • periodic sidelink data traffic with large packet size variations can be better supported, and resource utilization can be enhanced.
  • FIG. 1 illustrates a schematic diagram of an example communication system 100 in which embodiments of the present disclosure can be implemented.
  • the communication system 100 may include a first device 110, a second device 120 and a third device 130 that can communicate with each other.
  • the first device 110 and the second device 120 are illustrated as terminal devices
  • the third device 130 is illustrated as a network device serving the terminal devices.
  • the serving area of the third device 130 is called as a cell as shown in dash line.
  • the system 100 may include any suitable number of network devices and terminal devices adapted for implementing embodiments of the present disclosure. Although not shown, it would be appreciated that more terminal devices may be located in the cell and served by the third device 130.
  • the third device 130 may communicate with the first and second devices 110 and 120 via channels (such as, wireless communication channels) 111 and 121, respectively.
  • the channels 111 and 121 may be a physical uplink control channel (PUCCH) /physical uplink share channel (PUSCH) in a link from the first and second device 110 and 120 to the third device 130 or a physical downlink control channel (PDCCH) /physical downlink share channel (PDSCH) in a link from the third device 130 to the first and second device 110 and 120.
  • PUCCH physical uplink control channel
  • PUSCH physical uplink share channel
  • the first and second devices 110 and 120 are shown in FIG. 1 as mobile phones which enable V2X communications. It is to be understood that embodiments of the present disclosure are also applicable to other devices than mobile phones, such as vehicles, sensors and so on.
  • the first device 110 may communicate with the second device 120 via a sidelink. For example, the first device 110 may transmit information to the second device 120 via a PSSCH/PSCCH 131.
  • the third device 130 may perform resource allocation for sidelink transmission between the first and second devices 110 and 120, and transmit an assigned resource to the first and second devices 110 and 120 via the channels 111 and 121.
  • the first and second devices 110 and 120 may directly communicate with each other over the assigned resource.
  • the third device 130 may schedule a periodic resource for transmission of the periodic traffic.
  • the periodic resource may be fixed in size.
  • Communications in the communication system 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) and the fifth generation (5G) and on 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) and the fifth generation (5G) and on 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.
  • IEEE Institute for Electrical and Electronics Engineers
  • 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
  • a transmitting device for example, the first device 110
  • packet sizes of periodic data traffic have a large variation
  • mode 1 resource allocation is considered.
  • a periodic sidelink resource for maximal TB size is assigned, and for each arrived packet, a sidelink signaling is transmitted from a device to release unused sidelink resource to other devices promptly.
  • Fig. 2 illustrates a flowchart illustrating a process 200 for resource management according to a first example embodiment of the present disclosure.
  • the process 200 will be described with reference to Fig. 1.
  • the process 200 may involve the first, second and third devices 110, 120 and 130 as illustrated in Fig. 1. It would be appreciated that although the process 200 for link has been described in the communication system 100 of Fig. 1, this process may be likewise applied to other communication scenarios where different network devices are jointly deployed to provide respective serving cells.
  • the first device 110 may transmit 210 information (also referred as assistant information below) on traffic characteristic parameters to the third device 130, for example, via a radio resource control (RRC) signaling.
  • the traffic characteristic parameters may be used for describing the periodic sidelink data traffic.
  • the traffic characteristic parameters may include at least one or more of the following: a preferred/expected semi-persistent scheduling (SPS) interval, a transport block (TB) size range, and quality of service (QoS) .
  • the traffic characteristic parameters may include a TB size range [a, b] , wherein a and b are integers, and b is larger than a.
  • traffic characteristic parameters are not limited by the above examples, and it may include any other suitable parameters. As more information on transport block size is reported as traffic characteristic parameters, it facilitates a better resource allocation at the third device 130.
  • the third device 130 may perform sidelink SPS for the first device so as to assign 215 a resource to the first device 110.
  • the third device 130 may assign a periodic resource (also referred as SPS configured resource below) to the first device 110.
  • the third device 130 may assign the periodic resource based on QoS requirement information reported in the information on traffic characteristic parameters.
  • the third device 130 may determine the periodic resource based on an upper limit of the TB size range, for example, maximum TB size in the traffic. It can result in stringent low latency and high reliability.
  • the third device 130 transmits 220 a message on the periodic resource to the first device 110.
  • the third device 130 may send a configured grant including the SPS configured resource to the first device 110 via a RRC signaling.
  • the third device 130 may send a DCI to the first device 110 to activate periodic transmissions.
  • the periodic resource may be surplus for periodic traffic transmission.
  • the first device 110 may determine 225 whether a resource assigned to the first device 110 can be released.
  • the first device 110 may determine the size of a resource required for transmission of the packet, and if the required resource size is smaller than the size of the periodic resource, the first device 110 may determine that unused resource can be released.
  • the resource may comprise at least a portion of the periodic resource assigned to the first device 110.
  • the resource may be all of the periodic resource. In some example alternative embodiments, the resource may be zero.
  • the first device 110 may only release the resource for current SPS occasion, and continue using configured resource for subsequent SPS occasions. In some example embodiments, the first device 110 may determine whether there is a packet arriving in the current SPS occasion, and if no packet arrives, release all SPS configured resource.
  • the first device 110 may transmit 230 a message to a second device (also referred as other devices) , the message indicating availability of the resource for use by other devices.
  • the other devices may be the second device 120.
  • the other devices may be any devices other than the second device 120 in the cell of the third device 130. For convenience, the other devices are shown in Fig. 2 as the second device 120.
  • the first device 110 may transmit a sidelink signaling to release unused sidelink resource to other devices promptly.
  • the first device 110 may transmit 230 the message to the second device 120 over a direct communication link between the first and second devices.
  • the first device 110 may transmit the message in a sidelink control information (SCI) over a stand-alone PSCCH.
  • SCI sidelink control information
  • the PSCCH can be sent as early as possible to leave more time for other devices to sense and then use the released resource.
  • the first device 110 may transmit the message over a PSCCH transmitted in the same slot as a PSSCH associated with the PSCCH.
  • the second device 120 may use 235 the released resource in transport block transmission.
  • the second device 120 may operate in mode 2, that is, autonomously select a sidelink resource
  • the second device 120 may perform persistent sensing and identify the released resource by decoding the PSCCH.
  • the second device 120 may use the released resource for transmissions of aperiodic packets. Thereby, mode 1/mode 2 resource sharing is achieved. It should be note that the second device 120 may also use the released resource for any suitable packet transmissions.
  • the process 200 as shown in Fig. 2 is merely an example, and may have additional operations.
  • the first device 110 may transmit the TB at sidelink over the configured periodic resource.
  • the first example embodiment described above it is suitable for the use case requiring stringent low latency and high reliability.
  • the message on the unused resource is transmitted to other devices over a direct communication link, a low latency and increased efficiency of sidelink resource usage can be achieved.
  • the periodic resource is determined based on an upper limit of a TB size range, high reliability can be achieved.
  • FIG. 3 illustrates a flowchart of a method 300 implemented at a first device according to the first example embodiment of the present disclosure. For the purpose of discussion, the method 300 will be described from the perspective of the first device 110 with reference to Fig. 1.
  • the first device 110 determines whether a resource assigned to the first device 110 can be released.
  • the first device 110 may transmit information on traffic characteristic parameters, to the third device 130 serving the first device 110, the traffic characteristic parameters at least comprising a transport block size range, and receive, from the third device 130, a periodic resource assigned to the first device 110 based on an upper limit in the transport block size range.
  • the first device 110 may determine the size of a resource required for transmission of a current transport block, and if the required resource size is smaller than the size of a periodic resource assigned to the first device, determine that the resource can be released.
  • the released resource may comprise at least a portion of a periodic resource assigned to the first device 110.
  • the released resource may be all of the periodic resource. In some example alternative embodiments, the released resource may be zero.
  • the first device 110 determines that a resource assigned to the first device 110 can be released, at block 320, the first device 110 transmits a message from the first device to a second device (e.g. the second device 120) over a direct communication link between the first and second devices 110 and 120, the message indicating availability of the released resource for use by the second device 120.
  • the first device 110 may transmit the message over a stand-alone PSCCH.
  • the first device 110 may transmit the message over a PSCCH transmitted in the same slot as a PSSCH associated with the PSCCH.
  • the processing at blocks 310 and 320 may correspond to that described at 225 and 230 in Fig. 2, and its other details are not repeated here.
  • the message on the unused resource is transmitted to other devices over a direct communication link, and thus a low latency and an increased efficiency of sidelink resource usage can be achieved.
  • Fig. 4 illustrates a flowchart of a method 400 implemented at a second device according to the first example embodiment of the present disclosure. For the purpose of discussion, the method 400 will be described from the perspective of the second device 120 with reference to Fig. 1.
  • the second device 120 receives a message from the first device 110 over a direct communication link between the first and second devices 110 and 120.
  • the message indicates availability of the released resource for use by the second device 120.
  • the second device 120 may receive the message over a stand-alone PSCCH.
  • the second device 120 may receive the message over a PSCCH transmitted in the same slot as a PSSCH associated with the PSCCH.
  • the second device 120 uses the released resource for transport block transmission.
  • the second device 120 may perform persistent sensing and identify the released resource by decoding the PSCCH.
  • the second device 120 may use the released resource in transport block transmission.
  • the second device 120 may operate in mode 2, that is, may autonomously select a sidelink resource, the second device 120 may use the released resource for transmissions of aperiodic packets.
  • the processing at blocks 410 and 420 may correspond to that described at 235 in Fig. 2, and its other details are not repeated here.
  • the message on the released resource from a first device is received directly by a second device over a direct communication link, and thus a low latency and increased efficiency of sidelink resource usage can be achieved.
  • Fig. 5 illustrates a flowchart of a method 500 implemented at a third device according to the first example embodiment of the present disclosure. For the purpose of discussion, the method 500 will be described from the perspective of the third device 130 with reference to Fig. 1.
  • the third device 130 receives information on traffic characteristic parameters from the first device.
  • the traffic characteristic parameters at least comprise a transport block size range.
  • the traffic characteristic parameters may include at least one or more of the following: a preferred/expected semi-persistent scheduling (SPS) interval, a transport block (TB) size range, and quality of service (QoS) . It facilitates a better resource allocation at the third device 130.
  • SPS semi-persistent scheduling
  • TB transport block
  • QoS quality of service
  • the third device 130 assigns a periodic resource to the first device based on an upper limit in the transport block size range, for example, maximum TB size in the traffic.
  • the processing at blocks 510 and 520 may correspond to that described at 210, 215 and 220 in Fig. 2, and its other details are not repeated here.
  • the periodic resource is determined based on an upper limit of a TB size range, high reliability can be achieved.
  • This example embodiment is similar with the first example embodiment except that a message indicating the released resource is transmitted from a first device to a third device serving the first device at a Uu interface, rather than transmitting the message to a second device over a sidelink.
  • Fig. 6 illustrates a flowchart illustrating a process 600 for resource management according to a second example embodiment of the present disclosure.
  • the process 600 will be described with reference to Fig. 1.
  • the process 600 may involve the first, second and third devices 110, 120 and 130 as illustrated in Fig. 1. It would be appreciated that although the process 600 for link has been described in the communication system 100 of Fig. 1, this process may be likewise applied to other communication scenarios where different network devices are jointly deployed to provide respective serving cells.
  • the first device 110 may transmit 610 information on traffic characteristic parameters to the third device 130.
  • the traffic characteristic parameters may be used for describing the periodic sidelink data traffic.
  • the traffic characteristic parameters may include at least one or more of the following: a preferred/expected semi-persistent scheduling (SPS) interval, a transport block (TB) size range, and quality of service (QoS) .
  • SPS semi-persistent scheduling
  • TB transport block
  • QoS quality of service
  • the traffic characteristic parameters are not limited by the above examples, and it may include any other suitable parameters. As more information on transport block size is reported as traffic characteristic parameters, it facilitates a better resource allocation at the third device 130.
  • the third device 130 may perform sidelink SPS for the first device so as to assign 615 a resource to the first device 110.
  • the third device 130 may determine the periodic resource based on an upper limit of the TB size range, for example, maximum TB size in the traffic.
  • the third device 130 may configure for the first device 110 a resource for transmission of a schedule request (SR) .
  • SR schedule request
  • the third device 130 may configure a periodic SR resource for use by the first device 110 to release the unused sidelink resource to the third device 130.
  • the third device 130 transmits 620 a configured grant including sidelink SPS resource and SR resource to the first device 110 over a Uu interface.
  • the third device 130 may send the configured grant to the first device 110 via a RRC signaling.
  • the third device 130 may send a DCI to the first device 110 to activate periodic transmissions.
  • the first device 110 may determine 625 whether a resource assigned to the first device 110 can be released. In some example embodiments, the first device 110 may determine the size of a resource required for transmission of the packet, and if the required resource size is smaller than the size of the periodic resource, the first device 110 may determine that unused resource can be released. In some example embodiments, the resource may comprise at least a portion of the periodic resource assigned to the first device 110. In some example embodiments, the resource may be all of the periodic resource. In some example alternative embodiments, the resource may be zero.
  • the first device 110 may only release the resource for current SPS occasion, and continue using configured resource for subsequent SPS occasions. In some example embodiments, the first device 110 may determine whether there is a packet arriving in the current SPS occasion, and if no packet arrives, release all SPS configured resource.
  • the first device 110 may transmit 630 a message to the third device 130, e.g. over the configured SR resource.
  • the message indicates availability of the resource for use by a second device such as the second device 120.
  • the first device 110 may determine bit information corresponding to the size of the resource, and transmit the bit information in the message to the third device 130. In this way, signalling overhead can be saved.
  • the first device 110 may determine the bit information based on a predetermined mapping between the bit information and the size of the released resource.
  • the mapping may be configured by the third device 130.
  • the first device 110 may determine a value of bits based on the size of the released resource, a predetermined number of bits, and a TB size range, and determine the value of bits as the bit information.
  • the mapping may be implicitly derived from the following equation (1) :
  • n is the TB size which the size of the released resource can accommodate
  • m is the value of bits conveyed by the PUCCH
  • N is the number of bits conveyed by the PUCCH
  • a and b is a lower limit and an upper limit of the TB size range.
  • 2 information bits are conveyed by a PUCCH using configured SR resource.
  • the mapping between the value of bits conveyed by the PUCCH and the size of the released resource can be set as follows:
  • the third device 130 determines 635 the released resource.
  • the third device 130 may receive bit information corresponding to the size of the released resource, and determine the released resource based on the bit information.
  • the determination of the released resource may be made based on a predetermined mapping between the bit information and the size of the released resource.
  • the third device 130 may determine the number of bits and a value of bits comprised in the bit information, and determine the size of the released resource based on the number of bits, the value of bits, and a transport block size range.
  • the size of the released resource may be derived from the above equation (1) .
  • the released resource may be determined based on information on the size of the released resource.
  • the third device 130 Upon determining the released resource, the third device 130 assigns 640 the released resource to other devices (in this example, the second device 120) for use in transmission.
  • the process 600 as shown in Fig. 6 is merely an example, and may have additional operations.
  • the first device 110 may transmit the TB at a sidelink over the configured periodic resource.
  • the message on the released resource is transmitted to the third device as a serving node in a low signaling overhead, a low latency and increased efficiency of sidelink resource usage can be achieved.
  • the periodic resource is determined based on an upper limit of a TB size range, high reliability can be achieved.
  • FIG. 7 illustrates a flowchart of a method 700 implemented at a first device according to the second example embodiment of the present disclosure. For the purpose of discussion, the method 700 will be described from the perspective of the first device 110 with reference to Fig. 1.
  • the first device 110 determines whether a resource assigned to the first device 110 can be released.
  • the processing at block 710 is similar with that at block 310.
  • the first device 110 may transmit information on traffic characteristic parameters, to the third device 130 serving the first device 110, the traffic characteristic parameters at least comprising a transport block size range, and receive, from the third device 130, a periodic resource assigned to the first device 110 based on an upper limit in the transport block size range. Additionally, the first device 110 may receive, from the third device 130, a resource assigned to the first device 110 for transmission of a SR.
  • the first device 110 may determine the size of a resource required for transmission of a current transport block, and if the required resource size is smaller than the size of a periodic resource assigned to the first device, determine that the resource can be released.
  • the released resource may comprise at least a portion of a periodic resource assigned to the first device 110.
  • the released resource may be all of the periodic resource. In some example alternative embodiments, the released resource may be zero.
  • the first device 110 determines that a resource assigned to the first device 110 can be released, at block 720, the first device 110 transmits a message from the first device to the third device 130, the message indicating availability of the resource for use by other devices such as the second device 120.
  • the first device 110 may transmit the message over a configured SR resource.
  • the first device 110 may transmit the message over a configured periodic SR resource.
  • the first device 110 may determine bit information corresponding to the size of the released resource, and transmit the bit information to the third device 130. In this way, signalling overhead can be saved.
  • the first device 110 may determine the bit information based on a predetermined mapping between the bit information and the size of the released resource. In some example embodiments, the first device 110 may determine a value of bits based on the size of the released resource, a predetermined number of bits, and a TB size range, and determine the value of bits as the bit information. For example, the mapping may be implicitly derived from the above equation (1) .
  • the processing at blocks 710 and 720 may correspond to that described at 625 and 630 in Fig. 6, and thus other details are not repeated here.
  • the message on the unused resource is transmitted to the third device as a serving node in a low signaling overhead, and thus a low latency and increased efficiency of sidelink resource usage can be achieved.
  • Fig. 8 illustrates a flowchart of a method 800 implemented at a third device according to the second example embodiment of the present disclosure.
  • the method 800 will be described from the perspective of the third device 130 with reference to Fig. 1.
  • the third device 130 receives a message from the first device 110, the message indicating availability of the resource assigned to the first device 110 for use by other devices such as the second device 120.
  • the third device 130 may configure a resource for transmission of a SR to the first device 110, and receive the message over the configured SR resource.
  • the third device 130 may configure periodic SR resource for the first device 110 and receive the message over the configured periodic SR resource.
  • the third device 130 may receive bit information corresponding to the size of the released resource in the message, and determine the released resource based on the bit information. In this way, signalling overhead can be saved.
  • the third device 130 may determine the size of the released resource based on a predetermined mapping between the bit information and the size of the released resource. In some example embodiments, the third device 130 may determine the size of the released resource based on a value of bits, a predetermined number of bits, and a TB size range. For example, the size of the released resource may be derived from the above equation (1) . In the case that the first device 110 uses the assigned resource in a predetermined order, the released resource may be determined based on information on the size of the released resource.
  • the third device 130 may receive information on traffic characteristic parameters from the first device 110, the traffic characteristic parameters at least comprising a transport block size range, and assign a periodic resource to the first device 110 based on an upper limit in the transport block size range.
  • the third device 130 assigns the released resource to other devices such as the second device 120.
  • the processing at blocks 810 and 820 may correspond to that described at 635 and 640 in Fig. 6, and thus other details are not repeated here.
  • the message on the unused resource is received in a low signaling overhead, and thus a low latency and increased efficiency of sidelink resource usage can be achieved.
  • a periodic resource is assigned to accommodate a basis packet size, e.g. minimal packet size, and a PUCCH is sent to a device as a serving node to request sidelink resources to accommodate an extra TB size beyond the basis packet size. It is suitable for a user case having less stringent latency requirement.
  • Fig. 9 illustrates a flowchart illustrating a process 900 for resource management according to a third example embodiment of the present disclosure.
  • the process 900 will be described with reference to Fig. 1.
  • the process 900 may involve the first device 110 and the third device 130 as illustrated in Fig. 1. It would be appreciated that although the process 900 for link has been described in the communication system 100 of Fig. 1, this process may be likewise applied to other communication scenarios where different network devices are jointly deployed to provide respective serving cells.
  • the first device 110 may transmit 910 information on traffic characteristic parameters to the third device 130.
  • the traffic characteristic parameters may be used for describing the periodic sidelink data traffic.
  • the traffic characteristic parameters may include at least one or more of the following: a preferred/expected semi-persistent scheduling (SPS) interval, a transport block (TB) size range, and quality of service (QoS) .
  • SPS semi-persistent scheduling
  • TB transport block
  • QoS quality of service
  • the traffic characteristic parameters are not limited by the above examples, and it may include any other suitable parameters. As more information on transport block size is reported as traffic characteristic parameters, it facilitates a better resource allocation at the third device 130.
  • the third device 130 may perform sidelink SPS for the first device so as to assign 915 a resource to the first device 110.
  • the third device 130 may determine the periodic resource based on a lower limit of the TB size range, for example, minimum TB size in the traffic.
  • the third device 130 may configure for the first device 110 a resource for transmission of a SR.
  • the third device 130 may configure a periodic SR resource for use by the first device 110 to transmit a SR to the third device 130 for packet transmission.
  • the third device 130 transmits 920 a configured grant including sidelink SPS resource and SR resource to the first device 110 at a Uu interface.
  • the third device 130 may send the configured grant to the first device 110 via a RRC signaling.
  • the third device 130 may send a DCI to the first device 110 to activate periodic transmissions.
  • the processing at 910, 915 and 920 is similar with that at 610, 615 and 620.
  • the first device 110 may determine 925 whether a resource other than a periodic resource assigned to the first device 110 is required to be assigned to the first device. In some example embodiments, the first device 110 may determine the size of a resource required for transmission of a current transport block, and if the required resource size is larger than the size of a periodic resource assigned to the first device, determine that the resource other than the periodic resource assigned to the first device is required. That is, an extra resource is required to be reassigned to the first device.
  • the first device 110 Upon determining that the resource other than the periodic resource is required, the first device 110 transmits 930 a message to the third device 130, the message indicating that the resource other than the periodic resource is required. In some example embodiments, the first device 110 may transmit the message over a configured SR resource. In some example embodiments, the first device 110 may transmit the message over a configured periodic SR resource.
  • the first device 110 may determine bit information corresponding to the size of the required resource, and transmit the bit information in the SR. In some example embodiments, the first device 110 may determine the bit information based on a predetermined mapping between the bit information and the size of the released resource. In some example embodiments, the mapping may be configured by the third device 130. In some example embodiments, the first device 110 may determine a value of bits based on the size of the resource, a predetermined number of bits, and a transport block size range, and determine the value of bits as the bit information. For example, the value of bits may be derived based on the above equation (1) .
  • the third device 130 determines 935 the required resource.
  • the third device 130 may receive bit information corresponding to the size of the required extra resource, and determine the required resource based on the bit information.
  • the determination of the required resource may be made based on a predetermined mapping between the bit information and the size of the required resource.
  • the third device 130 may determine the number of bits and a value of bits included in the bit information, and determine the size of the required resource based on the number of bits, the value of bits, and a transport block size range.
  • the size of the required resource may be derived from the above equation (1) .
  • the third device 130 Upon determining the size of the required resource, the third device 130 assigns 940 the required resource to the first device 110 for transport block transmission. In some example embodiments, the third device 130 may perform dynamic resource allocation for the SR and use a DCI to dynamically grant the required resource.
  • the message on the required resource is transmitted to the third device as a serving node in a low signaling overhead.
  • the periodic resource is determined based on a lower limit of a TB size range, and dynamic resource request and allocation are performed for an extra resource beyond the periodic resource, an increased efficiency of sidelink resource usage can be achieved.
  • FIG. 10 illustrates a flowchart of a method 1000 implemented at a first device according to the third example embodiment of the present disclosure.
  • the method 1000 will be described from the perspective of the first device 110 with reference to Fig. 1.
  • the first device 110 determine whether a resource other than a periodic resource assigned to the first device 110 is required to be assigned to the first device 110.
  • the first device 110 may determine the size of a resource required for transmission of a current transport block, and if the required resource size is larger than the size of a periodic resource assigned to the first device, determine that the resource other than the periodic resource assigned to the first device is required.
  • the first device 110 may transmit information on traffic characteristic parameters, to the third device 130 serving the first device 110, the traffic characteristic parameters at least comprising a transport block size range, and receive, from the third device 130, a periodic resource assigned to the first device 110 based on a lower limit in the transport block size range. Additionally, the first device 110 may receive, from the third device 130, a resource assigned to the first device 110 for transmission of a SR.
  • the first device 110 determines that the resource other than the periodic resource is required, at block 1020, the first device 110 transmits a message to the third device 130, the message indicating the resource other than the periodic resource is required. In some example embodiments, the first device 110 may transmit the message over a configured SR resource. In some example embodiments, the first device 110 may transmit the message over a configured periodic SR resource.
  • the first device 110 may determine bit information corresponding to the size of the required resource, and transmit the bit information to the third device 130. In this way, signalling overhead can be saved.
  • the first device 110 may determine the bit information based on a predetermined mapping between the bit information and the size of the required resource. In some example embodiments, the first device 110 may determine a value of bits based on the size of the required resource, a predetermined number of bits, and a TB size range, and determine the value of bits as the bit information. For example, the value of bits may be derived from the above equation (1) .
  • the processing at blocks 1010 and 1020 may correspond to that described at 925 and 930 in Fig. 9, and thus other details are not repeated here.
  • Fig. 11 illustrates a flowchart of a method 1100 implemented at a third device according to the third example embodiment of the present disclosure. For the purpose of discussion, the method 1100 will be described from the perspective of the third device 130 with reference to Fig. 1.
  • the third device 130 receive a message from the first device 110, the message indicating that a resource other than a periodic resource assigned to the first device 110 is required.
  • the third device 130 may receive bit information corresponding to the size of the required resource, and determine the required resource based on the bit information.
  • the determination of the required resource may be made based on a predetermined mapping between the bit information and the size of the required resource.
  • the third device 130 may determine the number of bits and a value of bits included in the bit information, and determine the size of the required resource based on the number of bits, the value of bits, and a transport block size range.
  • the size of the required resource may be derived from the above equation (1) .
  • the third device 130 assigns the required resource to the first device for TB transmission.
  • the third device 130 may perform dynamic resource allocation for the SR and use a DCI to dynamically grant the required resource.
  • the processing at blocks 1110 and 1120 may correspond to that described at 935 and 940 in Fig. 9, and thus other details is not repeated here.
  • Example embodiments of the present disclosure also provide the following solutions.
  • Clause 6 The method of any of clauses 1-5, further comprising: receiving, from the third device, information on a resource assigned to the first device for transmission of a schedule request, and
  • transmitting the message comprises: transmitting the message over the resource assigned to the first device for transmission of a schedule request.
  • Clause 7 The method of any of clauses 1-6, wherein the first device is a terminal device, and the third device is a network device.
  • determining the resource based on the number of bits, the value of bits, and a transport block size range.
  • an apparatus capable of performing any of the method 300 may comprise means for performing the respective steps of the method 300.
  • the means may be implemented in any suitable form.
  • the means may be implemented in a circuitry or software module.
  • the apparatus comprises means for transmitting, in response to a determination that the resource can be released, a message from the first device to a second device over a direct communication link between the first and second devices, the message indicating availability of the resource for use by the second device.
  • the apparatus further comprises means for performing other steps in some embodiments of the method 300.
  • the means comprises at least one processor; and at least one memory including computer program code, the at least one memory and computer program code configured to, with the at least one processor, cause the performance of the apparatus.
  • an apparatus capable of performing any of the method 400 may comprise means for performing the respective steps of the method 400.
  • the means may be implemented in any suitable form.
  • the means may be implemented in a circuitry or software module.
  • the apparatus comprises: means for receiving, by a second device, a message from a first device over a direct communication link between the first and second devices, the message indicating availability of a resource assigned to the first device for use by the second device; and means for using the resource for transport block transmission.
  • the apparatus further comprises means for performing other steps in some embodiments of the method 400.
  • the means comprises at least one processor; and at least one memory including computer program code, the at least one memory and computer program code configured to, with the at least one processor, cause the performance of the apparatus.
  • an apparatus capable of performing any of the method 500 may comprise means for performing the respective steps of the method 500.
  • the means may be implemented in any suitable form.
  • the means may be implemented in a circuitry or software module.
  • the apparatus comprises: means for receiving, by a third device serving a first device, information on traffic characteristic parameters from the first device, the traffic characteristic parameters at least comprising a transport block size range; and means for assigning a periodic resource to the first device based on an upper limit in the transport block size range.
  • the apparatus further comprises means for performing other steps in some embodiments of the method 500.
  • the means comprises at least one processor; and at least one memory including computer program code, the at least one memory and computer program code configured to, with 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 steps 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 comprises: means for determining, by a first device, whether a resource assigned to the first device can be released; and means for transmitting, in response to a determination that the resource can be released, a message to a third device serving the first device, the message indicating availability of the resource for use by a second device.
  • the apparatus further comprises means for performing other steps in some embodiments of the method 700.
  • the means comprises at least one processor; and at least one memory including computer program code, the at least one memory and computer program code configured to, with 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 steps 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 comprises: means for receiving, by a third device serving a first device, a message from the first device, the message indicating availability of a resource assigned to the first device for use by a second device; and means for assigning the resource to the second device for use in transmission.
  • the apparatus further comprises means for performing other steps in some embodiments of the method 800.
  • the means comprises at least one processor; and at least one memory including computer program code, the at least one memory and computer program code configured to, with the at least one processor, cause the performance of the apparatus.
  • an apparatus capable of performing any of the method 1000 may comprise means for performing the respective steps of the method 1000.
  • the means may be implemented in any suitable form.
  • the means may be implemented in a circuitry or software module.
  • the apparatus comprises: means for determining, by a first device, whether a resource other than a periodic resource assigned to the first device is required to be assigned to the first device; and means for transmitting, in response to a determination that the resource is required, a message to a third device serving the first device, the message indicating that the resource is required.
  • the apparatus further comprises means for performing other steps in some embodiments of the method 1000.
  • the means comprises at least one processor; and at least one memory including computer program code, the at least one memory and computer program code configured to, with the at least one processor, cause the performance of the apparatus.
  • an apparatus capable of performing any of the method 1100 may comprise means for performing the respective steps of the method 1100.
  • the means may be implemented in any suitable form.
  • the means may be implemented in a circuitry or software module.
  • the apparatus comprises: means for receiving, by a third device serving a first device, a message from the first device, the message indicating that a resource other than a periodic resource assigned to the first device is required; and means for assigning the resource to the first device for transport block transmission.
  • the apparatus further comprises means for performing other steps in some embodiments of the method 1100.
  • the means comprises at least one processor; and at least one memory including computer program code, the at least one memory and computer program code configured to, with the at least one processor, cause the performance of the apparatus.
  • Fig. 12 is a simplified block diagram of a device 1200 that is suitable for implementing embodiments of the present disclosure.
  • the device 1200 may be provided to implement the communication device, for example the first device 110, the second device 120 or the third device 130 as shown in Fig. 1.
  • the device 1200 includes one or more processors 1210, one or more memories 1220 coupled to the processor 1210, and one or more communication modules 1240 coupled to the processor 1210.
  • the communication module 1240 is for bidirectional communications.
  • the communication module 1240 has at least one antenna to facilitate communication.
  • the communication interface may represent any interface that is necessary for communication with other network elements.
  • the processor 1210 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 1200 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 1220 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) 1224, an electrically programmable read only memory (EPROM) , a flash memory, a hard disk, a compact disc (CD) , a digital video disk (DVD) , and other magnetic storage and/or optical storage.
  • the volatile memories include, but are not limited to, a random access memory (RAM) 1222 and other volatile memories that will not last in the power-down duration.
  • a computer program 1230 includes computer executable instructions that are executed by the associated processor 1210.
  • the program 1230 may be stored in the ROM 1220.
  • the processor 1210 may perform any suitable actions and processing by loading the program 1230 into the RAM 1220.
  • the embodiments of the present disclosure may be implemented by means of the program 1230 so that the device 1200 may perform any process of the disclosure as discussed with reference to Figs. 2 to 11.
  • the embodiments of the present disclosure may also be implemented by hardware or by a combination of software and hardware.
  • the program 1230 may be tangibly contained in a computer readable medium which may be included in the device 1200 (such as in the memory 1220) or other storage devices that are accessible by the device 1200.
  • the device 1200 may load the program 1230 from the computer readable medium to the RAM 1222 for execution.
  • the computer readable medium may include any types of tangible non-volatile storage, such as ROM, EPROM, a flash memory, a hard disk, CD, DVD, and the like.
  • Fig. 13 shows an example of the computer readable medium 1300 in form of CD or DVD.
  • the computer readable medium has the program 1230 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.
  • the present disclosure also provides at least one computer program product tangibly stored on a non-transitory computer readable storage medium.
  • the computer program product includes computer-executable instructions, such as those included in program modules, being executed in a device on a target real or virtual processor, to carry out the method 300, 400, 500, 700, 800, 1000 or 1100 as described above with reference to Figs. 2-11.
  • 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. These program codes 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 codes, 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 codes 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.

Landscapes

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

Abstract

Les modes de réalisation de la présente invention ont trait à la gestion des ressources dans la communication latérale. Selon un aspect de la présente invention, un troisième dispositif desservant un premier dispositif peut recevoir des informations sur des paramètres de caractéristiques de trafic provenant du premier dispositif, les paramètres de caractéristiques de trafic comprenant au moins une plage de taille de bloc de transport, et attribuer une ressource périodique au premier dispositif sur la base d'une limite supérieure dans la plage de taille de bloc de transport. Le premier dispositif peut déterminer si une ressource attribuée au premier dispositif peut être libérée et en réponse à une détermination indiquant que la ressource peut être libérée, transmettre un message du premier dispositif à un second dispositif sur une liaison de communication directe entre les premier et second dispositifs, le message indiquant la disponibilité de la ressource destinée à être utilisée par le second dispositif. Lors de la réception du message, le second dispositif utilise la ressource libérée pour la transmission de bloc de transport. La gestion de ressources selon la présente invention permet d'obtenir une faible latence, une fiabilité élevée et une efficacité accrue d'utilisation de ressources de liaison latérale.
PCT/CN2019/088981 2019-05-29 2019-05-29 Gestion des ressources dans la communication latérale WO2020237521A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PCT/CN2019/088981 WO2020237521A1 (fr) 2019-05-29 2019-05-29 Gestion des ressources dans la communication latérale

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/CN2019/088981 WO2020237521A1 (fr) 2019-05-29 2019-05-29 Gestion des ressources dans la communication latérale

Publications (1)

Publication Number Publication Date
WO2020237521A1 true WO2020237521A1 (fr) 2020-12-03

Family

ID=73553010

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CN2019/088981 WO2020237521A1 (fr) 2019-05-29 2019-05-29 Gestion des ressources dans la communication latérale

Country Status (1)

Country Link
WO (1) WO2020237521A1 (fr)

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105309038A (zh) * 2014-03-19 2016-02-03 华为技术有限公司 半静态调度sps的方法和装置
US20160345381A1 (en) * 2014-01-31 2016-11-24 Nokia Solutions And Networks Oy Methods and apparatuses for transfer of dedicated channel resources
US20180070367A1 (en) * 2015-05-15 2018-03-08 Kyocera Corporation Radio terminal
WO2018118341A1 (fr) * 2016-12-22 2018-06-28 Qualcomm Incorporated Planification semi-persistante de communications à faible latence ultrafiables (urllc) adaptatives
US20180184443A1 (en) * 2016-12-22 2018-06-28 Qualcomm Incorporated Semi-persistent scheduling for low-latency communications

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20160345381A1 (en) * 2014-01-31 2016-11-24 Nokia Solutions And Networks Oy Methods and apparatuses for transfer of dedicated channel resources
CN105309038A (zh) * 2014-03-19 2016-02-03 华为技术有限公司 半静态调度sps的方法和装置
US20180070367A1 (en) * 2015-05-15 2018-03-08 Kyocera Corporation Radio terminal
WO2018118341A1 (fr) * 2016-12-22 2018-06-28 Qualcomm Incorporated Planification semi-persistante de communications à faible latence ultrafiables (urllc) adaptatives
US20180184443A1 (en) * 2016-12-22 2018-06-28 Qualcomm Incorporated Semi-persistent scheduling for low-latency communications

Similar Documents

Publication Publication Date Title
CA3149831A1 (fr) Partage de processus harq par de multiples ressources a octroi configurees
CN113708902B (zh) 用于休眠的带宽部分的信道信息报告
WO2022036590A1 (fr) Mécanisme de priorisation de transmissions
WO2020237521A1 (fr) Gestion des ressources dans la communication latérale
US20240080834A1 (en) Uplink Skipping
WO2024174141A1 (fr) Améliorations d'autorisation configurée
WO2023225923A1 (fr) Activation de retransmission de transmission initiale de cg-sdt
WO2021208096A1 (fr) Mise à jour dynamique de restrictions de mappage pour canal logique
WO2024092572A1 (fr) Planification multi-créneau dans un contexte de sbfd
WO2024168715A1 (fr) Opération d'autorisation configurée
WO2023035148A1 (fr) Demande de cot proactive
WO2023035140A1 (fr) Demande de cot proactive
WO2024168829A1 (fr) Mappage de sous-canaux et de blocs de ressources physiques
WO2024098229A1 (fr) Déclenchement d'informations de faisceau pour activation de cellule
WO2023010270A1 (fr) Saut d'autorisation pour une procédure de transmission de petites données
WO2023225874A1 (fr) Procédé et appareil de rapport de marge de puissance
WO2021203322A1 (fr) Rapport de faisceau déclenché par transmission de données
WO2023212870A1 (fr) Mécanisme d'économie d'énergie d'ue
WO2024036621A1 (fr) Sélection d'autorisation de liaison montante pour économie d'énergie d'un équipement utilisateur
WO2024168848A1 (fr) Mesure de validation pour activation de cellule
WO2024164323A1 (fr) Opération d'autorisation configurée
WO2024207277A1 (fr) Gestion de collision
WO2024159405A1 (fr) Relâchement de temps de traitement
WO2024092672A1 (fr) Activation de (re) transmissions avec transmission discontinue/réception discontinue de réseau
WO2024020926A1 (fr) Perfectionnements apportés à une transmission à multiples points d'émission et de réception

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 19930533

Country of ref document: EP

Kind code of ref document: A1

NENP Non-entry into the national phase

Ref country code: DE

122 Ep: pct application non-entry in european phase

Ref document number: 19930533

Country of ref document: EP

Kind code of ref document: A1