WO2022206248A1 - Procédé et appareil de sélection de ressource de transmission, et équipement utilisateur - Google Patents

Procédé et appareil de sélection de ressource de transmission, et équipement utilisateur Download PDF

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Publication number
WO2022206248A1
WO2022206248A1 PCT/CN2022/078229 CN2022078229W WO2022206248A1 WO 2022206248 A1 WO2022206248 A1 WO 2022206248A1 CN 2022078229 W CN2022078229 W CN 2022078229W WO 2022206248 A1 WO2022206248 A1 WO 2022206248A1
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Prior art keywords
activation time
resource set
resource
time
data
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PCT/CN2022/078229
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English (en)
Chinese (zh)
Inventor
刘星
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展讯通信（上海）有限公司
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Publication of WO2022206248A1 publication Critical patent/WO2022206248A1/fr

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H04L5/0001—Arrangements for dividing the transmission path
    • H04L5/0003—Two-dimensional division
    • H04L5/0005—Time-frequency
    • H04L5/0007—Time-frequency the frequencies being orthogonal, e.g. OFDM(A), DMT
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H04L5/0091—Signaling for the administration of the divided path
    • H04L5/0096—Indication of changes in allocation
    • H04L5/0098—Signalling of the activation or deactivation of component carriers, subcarriers or frequency bands
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L67/00—Network arrangements or protocols for supporting network services or applications
    • H04L67/01—Protocols
    • 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]
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
    • Y02D30/00—Reducing energy consumption in communication networks
    • Y02D30/70—Reducing energy consumption in communication networks in wireless communication networks

Definitions

  • the present invention relates to the field of communication technologies, and in particular, to a transmission resource selection method, apparatus, and user equipment.
  • 5G NR is a global 5G standard system based on the new air interface design of OFDM (Orthogonal Frequency Division Multiplexing, Orthogonal Frequency Division Multiplexing).
  • the link between the device and the user equipment is called SL (sidelink, direct link), and the interface is called the PC5 interface.
  • SL sidelink, direct link
  • the Mode 1 resource allocation method is the centralized allocation method of the base station, that is, the base station allocates resources to the sender's user equipment, and the sender's user equipment directly uses the resources allocated by the base station to send data to the receiver's user equipment; and the Mode 2 resource allocation method is the sender's user equipment.
  • the user equipment autonomously selects available resources from the resource pool for data transmission by means of perception.
  • a DRX Discontinuous Reception, discontinuous reception
  • the user equipment When the user equipment is configured with DRX, the user equipment only monitors control information from the network equipment under specific conditions or within a specific time period. In this way, after the DRX is configured on the SL, the first user equipment sends data to the second user equipment through the SL, and needs to first send SCI (Sidelink Control Information, side link control information), and the second user equipment obtains data reception by monitoring the SCI necessary information to receive the data correctly.
  • SCI Segmentlink Control Information, side link control information
  • the second user equipment should only need to monitor the SCI in a certain period of time, instead of continuously monitoring.
  • the state in which data can be received, this part of the time is usually called the activation time.
  • the first user equipment After DRX is introduced on the SL, in the Mode 2 resource allocation method on the SL, the first user equipment adopts the Mode 2 resource allocation method.
  • the Mode 2 resource allocation method When selecting resources for sending data to the second user equipment, how to ensure that the selected resources can be placed in the first user equipment.
  • the activation time of the second user equipment there is currently no effective solution in the industry.
  • Embodiments of the present invention provide a transmission resource selection method, apparatus, and user equipment, so that the resource selected by the sender can fall within the activation time of the receiver, thereby ensuring the reliability of data transmission.
  • An embodiment of the present invention provides a transmission resource selection method, the method includes:
  • the first device obtains an optional resource set
  • a transmission resource for sending the data service is selected from the set of preferred resources.
  • the activation time includes an activation time for periodic activation and an activation time for aperiodic activation.
  • the periodically activated activation time includes the running time of the duration timer
  • the aperiodically activated activation time includes the running time of the inactive timer and/or the running time of the retransmission timer.
  • the service type of the data to be sent is aperiodic service
  • the determining of the preferred resource set according to the service type of the data to be sent and the optional resource set includes:
  • the transmission resources in the optional resource set within the periodic activation time and the aperiodic activation time are added to the preferred resource set.
  • the service type of the data to be sent is a periodic service
  • the determining of the preferred resource set according to the service type of the data to be sent and the optional resource set includes:
  • the transmission resources in the optional resource set within the periodically activated activation time are added to the preferred resource set.
  • the determining the preferred resource set according to the data service type to be sent and the optional resource set further includes:
  • the transmission resources in the optional resource set within the aperiodic activation time are added to the preferred resource set.
  • the method further includes:
  • the set period is any of the following One: Set the reserved period and duration of the number.
  • the method further includes:
  • the first device sends the set period to the second device.
  • An embodiment of the present invention further provides an apparatus for selecting transmission resources, the apparatus comprising:
  • the information acquisition module is used to acquire the optional resource collection
  • the preferred resource set determination module is configured to determine the preferred resource set according to at least one of the following: the service type of the data to be sent, the activation time, and the optional resource set;
  • a resource selection module configured to select a transmission resource for sending the data service from the preferred resource set.
  • the activation time includes an activation time for periodic activation and an activation time for aperiodic activation.
  • the periodically activated activation time includes the running time of the duration timer
  • the aperiodically activated activation time includes the running time of the inactive timer and/or the running time of the retransmission timer.
  • the service type of the data to be sent is aperiodic service
  • the resource selection module is specifically configured to add the transmission resources in the optional resource set within the periodic activation time and the aperiodic activation time to the preferred resource set.
  • the service type of the data to be sent is a periodic service
  • the resource selection module is specifically configured to add the transmission resources in the optional resource set within the activation time of the periodic start to the preferred resource set.
  • the resource selection module is further configured to add the transmission resources within the aperiodic activation time in the optional resource set to the preferred resource set.
  • the device further includes:
  • the resource selection module is further configured to use the resource indicated in the latest scheduling information as the initial resource, and take the time that occurs within the set period after the initial resource and takes the reservation period as the period as the reservation activation time ;
  • the set time period is any one of the following: a set number of reserved periods and a set duration.
  • the device further includes:
  • an information indication module configured to send indication information, where the indication information is used to indicate the set period.
  • An embodiment of the present invention further provides a user equipment, which is characterized by comprising the foregoing transmission resource selection apparatus.
  • Embodiments of the present invention further provide a computer-readable storage medium, where the computer-readable storage medium is a non-volatile storage medium or a non-transitory storage medium, on which a computer program is stored, and the computer program is executed by a processor perform the steps of the above method.
  • the computer-readable storage medium is a non-volatile storage medium or a non-transitory storage medium, on which a computer program is stored, and the computer program is executed by a processor perform the steps of the above method.
  • An embodiment of the present invention further provides an electronic device, including a memory and a processor, the memory stores a computer program that can be run on the processor, and the processor executes the steps of the above method when the computer program runs .
  • the transmission resource selection method, device, and user equipment provided by the embodiments of the present invention are designed to ensure that the selected resources can fall within the activation time of the receiver when the Mode 2 resource allocation method is adopted after DRX is introduced on the SL.
  • the selected resource set such as the optional resource set specified in the existing relevant protocols, or the optional resource set defined in the prior art, or the optional resource set proposed by other subsequent related technical solutions, according to the data to be sent
  • At least one of the service type, activation time, and optional resource set generates a preferred resource set, and then selects transmission resources from the preferred resource set to send data, so that the resource selected by the sender can be activated by the receiver. Time to ensure the reliability of data transmission.
  • FIG. 1 is a schematic diagram of the DRX cycle mechanism in the prior art
  • FIG. 2 is a schematic diagram of an inactive timer in the DRX cycle in the prior art
  • FIG. 3 is a flowchart of a method for selecting transmission resources according to an embodiment of the present invention.
  • FIG. 4 is a schematic diagram of a preferred resource set for aperiodic services in an embodiment of the present invention.
  • FIG. 5 is a schematic diagram of a preferred resource set for periodic services in an embodiment of the present invention.
  • FIG. 6 is another flowchart of a transmission resource selection method according to an embodiment of the present invention.
  • FIG. 7 is a schematic diagram of a reservation activation time configured for periodic services in an embodiment of the present invention.
  • FIG. 8 is a structural block diagram of an apparatus for selecting a transmission resource according to an embodiment of the present invention.
  • the technical solution of the present application can be applied to the fifth generation (5th Generation, 5G) communication system, also to the fourth generation (4th Generation, 4G), the third generation (3rd Generation, 3G) communication system, and also to the future Various new communication systems, such as the sixth generation (6th Generation, 6G), the seventh generation (7th Generation, 7G), etc., are not limited in this embodiment of the present application.
  • the technical solution of the present application is also applicable to different network architectures, including but not limited to relay network architecture, dual-link architecture, vehicle-to-everything (V2X) architecture, device-to-device communication (Device- to-Device, D2D) and other architectures.
  • relay network architecture dual-link architecture
  • V2X vehicle-to-everything
  • D2D device-to-device communication
  • D2D device-to-device communication
  • the device in the embodiment of the present application includes a base station and a base station controller of an access network, and may also include a terminal.
  • a base station (base station, BS) in the embodiments of the present application is a device deployed in a radio access network (RAN) to provide a wireless communication function.
  • the equipment providing the base station function in the 2G network includes the base transceiver station (Base Transceiver Station, BTS), the equipment providing the base station function in the 3G network includes the Node B (NodeB), and the equipment providing the base station function in the 4G network includes the evolved Node B (evolved NodeB, eNB), in the wireless local area network (Wireless Local Area Networks, WLAN), the device that provides the base station function is the access point (Access Point, AP), 5G New Radio (New Radio, NR) in the The device gNB that provides base station functions, and the node B (ng-eNB) that continues to evolve, wherein the NR technology is used for communication between the gNB and the terminal, and the evolved universal terrestrial wireless access (Evolved Universal Terrestrial Access)
  • BTS base transceiver Station
  • the base station in the embodiment of the present application also includes a device that provides a base station function in a new communication system in the future, and the like.
  • the base station controller in the embodiments of the present application which may also be referred to as base station controller equipment, is a device for managing base stations, such as a base station controller (Base Station Controller, BSC) in a 2G network, and a wireless network control in a 3G network.
  • BSC Base Station Controller
  • RNC Radio Network Controller
  • the Radio Network Controller can also refer to the device that controls and manages the base station in the new communication system in the future.
  • the terminal in the embodiments of this application may also be referred to as terminal equipment, and may refer to various forms of user equipment (User Equipment, UE for short), access terminals, subscriber units, subscriber stations, mobile stations, and mobile stations (Mobile Station, MS), remote station, remote terminal, mobile device, user terminal, wireless communication device, user agent or user equipment.
  • User Equipment User Equipment
  • MS Mobile Station
  • the terminal device may also be a cellular phone, a cordless phone, a Session Initiation Protocol (SIP) phone, a Wireless Local Loop (WLL) station, a Personal Digital Assistant (PDA), a wireless Communication-enabled handheld devices, computing devices or other processing devices connected to wireless modems, in-vehicle devices, wearable devices, terminal devices in future 5G networks or in future evolved Public Land Mobile Networks (PLMN) terminal equipment, etc., which are not limited in this embodiment of the present application.
  • SIP Session Initiation Protocol
  • WLL Wireless Local Loop
  • PDA Personal Digital Assistant
  • PLMN Public Land Mobile Networks
  • the embodiment of the present application defines the unidirectional communication link from the access network to the terminal as the downlink, the data transmitted on the downlink is the downlink data, and the transmission direction of the downlink data is called the downlink direction;
  • the unidirectional communication link is the uplink, the data transmitted on the uplink is the uplink data, and the transmission direction of the uplink data is called the uplink direction.
  • the terminal When the terminal is configured with DRX, the terminal only monitors control information from network devices under specific conditions or within a specific time period, such as DCI (Downlink Control information) carried on the PDCCH (Physical downlink control channel). , downlink control information), the control information includes control information for scheduling uplink and downlink resources, control information for adjusting the transmit power of the terminal, and the like. Since the terminal does not need to detect the control information all the time, energy consumption can be reduced.
  • DCI Downlink Control information
  • PDCCH Physical downlink control channel
  • the DRX cycle mechanism is shown in Figure 1.
  • the terminal periodically starts a duration timer (on duration timer).
  • the duration timer the terminal needs to monitor the downlink control information.
  • the terminal does not need to monitor the downlink control information.
  • the duration of the DRX cycle and duration timers are configurable.
  • DRX only introduces the DRX period and duration timer, it will cause the following problem: that is, when the data arrives just before the duration timer expires, the base station has only a short time to schedule the terminal, and then only waits for the next duration timer. the device starts. If a service requires a large amount of data, the base station needs to schedule multiple times to complete the transmission, and part of the data will be delayed to the next duration timer, resulting in a delay.
  • the current DRX mechanism also introduces an inactivity timer.
  • the inactivity timer receives a control information (indicating the newly transmitted DCI) at the terminal for scheduling a new transmission. start up.
  • the DRX mechanism stipulates that as long as there is a timer running, the terminal needs to monitor the downlink control information, which avoids the problem that the terminal enters the DRX state due to the timeout of the duration timer before the base station has completed the scheduling.
  • the DRX mechanism also considers the situation of retransmission: when the terminal receives a downlink data but fails to decode it successfully, it will feed back NACK to the base station and request the base station to retransmit. When the activation timer expires, the terminal enters a dormant state and cannot receive retransmission scheduling. To this end, the DRX mechanism also sets a retransmission timer (retransmission timer) for receiving retransmission scheduling. When the terminal feeds back NACK to the base station, it will start the HARQ (Hybrid Automatic Repeat re Quest, hybrid automatic repeat request) RTT (Round-TripTime, round trip time) timer.
  • HARQ Hybrid Automatic Repeat re Quest, hybrid automatic repeat request
  • RTT Red-TripTime, round trip time
  • the terminal does not detect PDCCH scheduling; when When the HARQ RTT timer expires, the terminal starts the retransmission timer. During the operation of the retransmission timer, when the retransmission schedule is received, the retransmission timer is stopped.
  • the above describes the application of DRX between the base station and the terminal.
  • the two user equipments on the SL need to send data, they must first send the SCI.
  • the function of the SCI on the SL is similar to the function of the DCI on the Uu, so the DRX
  • the working principle of the inactive timer and retransmission timer in SL DRX is also similar to that in Uu DRX. For example, on SL, when the SCI for new transmission is received, the inactive timer is started.
  • the Mode 2 resource allocation method is that the sender's user equipment autonomously selects available resources from the resource pool for data transmission through perception.
  • the resource pool is usually shared by multiple user equipments. Before sending data, each user equipment needs to monitor or sense for a period of time to determine the resources that are not used or interfered by other user equipments to form an available resource set, and then randomly select from the resource set. Resource usage, the set of optional or available resources is actually some or all of the time-frequency resources within a period of time and a frequency range.
  • embodiments of the present invention provide a transmission resource selection method, device, and user equipment, which select a corresponding resource from an optional resource set according to the service type and activation time of the data to be sent, generate a preferred resource set, and then select from A transmission resource is selected from the preferred resource set to send data.
  • FIG. 3 it is a flowchart of a method for selecting transmission resources according to an embodiment of the present invention, including the following steps:
  • Step 301 the first device acquires an optional resource set.
  • the first device may be an SL sender, or may be an arbitrary sender that selects resources in a self-service resource selection manner.
  • the optional resource set may be the optional resource set specified in the existing related protocols, or the optional resource set defined in the prior art, or the optional resource set proposed by other subsequent related technical solutions.
  • the embodiment does not limit this.
  • Step 302 Determine the preferred resource set according to at least one of the following: the service type of the data to be sent, the activation time, and the optional resource set.
  • the service type of the data to be sent may include: aperiodic service and periodic service.
  • the activation time may be the activation time between the sender user equipment and the receiver user equipment.
  • the activation time may include a periodical activation activation time and aperiodic activation activation time.
  • the activation time of the periodic startup may include the running time of the duration timer in the prior art
  • the activation time of the aperiodic startup may include the running time of the inactive timer in the prior art and/or or the time the retransmission timer runs.
  • the selected resources are within the activation time of the receiver. Therefore, when selecting resources, the optional resources set in the periodical activation time and the aperiodic service can be selected.
  • the transmission resources within the activation time are added to the preferred resource set, as shown in FIG. 4 .
  • the transmission resources in the optional resource set within the activation time of the periodic start may be added to the preferred resource set, as shown in FIG. 5 . Since the period of the periodically activated activation time is the same as the period of the transmission resources in the preferred resource set, it can be guaranteed that each subsequent transmission resource can fall within the activation time of the receiver.
  • transmission resources in the optional resource set within the periodic activation time and in the inactive timer may also be added to the preferred resource set.
  • the transmission resources in the optional resource set within the periodic activation time and within the retransmission timer may also be added to the preferred resource set.
  • the transmission resources located in the periodic activation time and the aperiodic activation time in the optional resource set may also be added to the preferred resource set, wherein the aperiodic activation time The time includes the time the inactivity timer runs and the time the retransmission timer runs.
  • the periodic activation time may be an already activated periodic activation time, or a potentially activated periodic activation time. For example, since the duration timer is periodically activated with a DRX cycle, even if the next DRX cycle Not yet, but the potential duration timer runs are still expected.
  • the aperiodic activation time may be an already activated aperiodic time.
  • Step 303 Select a transmission resource for sending the data service from the preferred resource set.
  • the transmission resource selection method when the Mode 2 resource allocation method is adopted after DRX is introduced on the SL, in order to ensure that the selected resources can fall within the activation time of the receiver, on the basis of the optional resource set , such as the optional resource set specified in the existing related protocols, or the optional resource set defined in the prior art, or the optional resource set proposed by other subsequent related technical solutions, according to the characteristics of the service type of the data to be sent, the activation time, further restrict the set of optional resources, select corresponding resources from them to generate a set of preferred resources, and then select transmission resources from the set of preferred resources to send data, so that the resources selected by the sender can be placed in the receiver's During the activation time, the reliability of data transmission is guaranteed.
  • the optional resource set such as the optional resource set specified in the existing related protocols, or the optional resource set defined in the prior art, or the optional resource set proposed by other subsequent related technical solutions
  • a new activation time may be further introduced, which is referred to as a reserved activation time for the convenience of description, which will be described in detail below.
  • FIG. 6 it is another flowchart of the transmission resource selection method according to the embodiment of the present invention, including the following steps:
  • Step 601 the first device acquires an optional resource set.
  • Step 602 For the aperiodic service, add the transmission resources in the optional resource set within the periodic activation time and the aperiodic activation time to the preferred resource set.
  • Step 603 For the periodic service, add the transmission resources within the periodic activation time and the transmission resources within the aperiodic activation time in the optional resource set to the preferred resource set.
  • Step 604 Select a transmission resource for sending the data service from the preferred resource set.
  • Step 605 Send scheduling information to indicate the transmission resource.
  • Step 606 taking the transmission resource indicated in the latest scheduling information as the initial resource, and taking the time that occurs within the set period after the initial resource and takes the reservation period as the period as the reservation activation time.
  • the reservation interval (reservation interval) is not 0, indicating that the resource is a periodic reserved resource, and the reservation period is the period; if the reservation period is 0, it indicates that the resource is a one-time resource , so the receiving user equipment can add subsequent activation time accordingly.
  • both the sender and the receiver believe that: starting from the resource indicated in the last scheduling information that is not 0, such as the resource indicated in the SCI, and taking the reservation period as the period, before the possible release time of the periodic resource, the All subsequent possible resource locations are set to reserve activation time.
  • step 606 may not depend on steps 601 to 605, that is, no matter what method the terminal adopts, including the prior art or other technologies, to determine the transmission resource for sending the data service, after sending the scheduling information, all The reserved activation time may be determined according to the manner described in step 606 .
  • the resource indicated in the latest scheduling information is used as the initial resource, and the time that occurs within the set period after the initial resource and takes the reservation period as the period is used as the reservation activation time.
  • time, the transmission resources within the reservation activation time are added to the preferred resource set; the set time period may be any one of the following: the number of reservation periods and the set duration.
  • the number of the reserved period and the set duration are configurable parameters, for example, the sl-Reselect After parameter is used to represent the number of the reserved period, and the sl-Reselect Long parameter is used to represent the set duration.
  • the first device may interact with the second device, that is, the recipient device, and send the configuration parameter to the recipient in advance, for example, the configuration parameter may be carried through a specific message.
  • the configuration parameter can be used to control the sender to release the periodic resource: when the sender does not use the periodic resource of the reserved period for consecutive s1-ReselectAfter times, the periodic resource can be released and the resource selection can be performed again.
  • sl-ReselectAfter is 2, it may be considered that the time at which the resource positions of the subsequent two reservation periods are located is the reservation activation time.
  • the configurable parameters can be sent to the receiver through the first data exchange. This enables both parties to establish a unified understanding of the subsequent reservation activation time, thereby effectively ensuring the correct reception of subsequent data.
  • the activation time determines the preferred resource set, for periodic services, not only add the transmission resources in the optional resource set within the activation time of the periodic start to the preferred resource set, but also add the transmission resources within the aperiodic activation time to the preferred resource set
  • the transmission resources are added to the preferred resource set, and by introducing the reservation activation time and corresponding configuration parameters, both parties can establish a unified understanding of the subsequent reservation activation time; and then select transmission resources from the preferred resource set to send data, so that the sender can The selected resource can fall within the activation time of the receiver to
  • an embodiment of the present invention further provides an apparatus for selecting transmission resources, as shown in FIG. 8 , which is a structural block diagram of the apparatus.
  • the device includes the following modules:
  • an information acquisition module 801, configured to acquire an optional resource set and an activation time that needs to monitor downlink control information
  • the preferred resource set determining module 802 is configured to determine the preferred resource set according to the service type of the data to be sent, the activation time and the optional resource set;
  • a resource selection module 803, configured to select a transmission resource for sending the data service from the preferred resource set.
  • the optional resource set may be an optional resource set specified in an existing related protocol, or an optional resource set defined in the prior art, or may be proposed by other subsequent related technical solutions An optional resource set, which is not limited in this embodiment of the present invention.
  • the activation time may include a periodical activation activation time and aperiodic activation activation time.
  • the activation time of the periodic startup includes the running time of the duration timer in the prior art
  • the activation time of the aperiodic startup may include the running time of the inactive timer in the prior art and/or The time the retransmission timer runs.
  • the service type of the data to be sent may include: aperiodic service and periodic service.
  • the preferred resource set determining module 802 may select corresponding resources from the optional resource sets according to the characteristics of different service types to generate a preferred resource set.
  • the preferred resource set determining module 802 may determine that the optional resource set is located in the periodic activation time The transmission resources within the time and aperiodic activation time are added to the preferred resource set,
  • the preferred resource set determining module 802 may add the transmission resources in the optional resource set within the activation time of the periodic start to the preferred resource set. Since the period of the periodically activated activation time, such as DRX, is the same as the period of the transmission resources in the preferred resource set, it can be guaranteed that each subsequent transmission resource can fall within the activation time of the receiver.
  • the preferred resource set determining module 802 may further add transmission resources in the optional resource set within the aperiodic activation time to the preferred resource set.
  • the transmission resource selection device provided by the embodiment of the present invention, when the Mode 2 resource allocation method is adopted after DRX is introduced on the SL, in order to ensure that the selected resources can fall within the activation time of the receiver, on the basis of the optional resource set , such as the optional resource set specified in the existing related protocols, or the optional resource set defined in the prior art, or the optional resource set proposed by other subsequent related technical solutions, according to the characteristics of the service type of the data to be sent, the activation time, further restrict the set of optional resources, select corresponding resources from them to generate a set of preferred resources, and then select transmission resources from the set of preferred resources to send data, so that the resources selected by the sender can be placed in the receiver's During the activation time, the reliability of data transmission is guaranteed.
  • the optional resource set such as the optional resource set specified in the existing related protocols, or the optional resource set defined in the prior art, or the optional resource set proposed by other subsequent related technical solutions
  • a new activation time may be further introduced, that is, the reserved activation time mentioned in the foregoing method embodiments of the present invention.
  • the preferred resource set determining module 802 may also use the resource indicated in the latest scheduling information as the starting resource, and the resource that is located within the set period after the starting resource and the reservation period is The time when the period occurs is regarded as the reserved activation time; the set period is any one of the following: a set number of reserved periods and a set duration. The number of the reserved periods and the set duration are configurable parameters.
  • the apparatus further includes: an information indication module (not shown), configured to send indication information, where the indication information is used to indicate the set period. That is, the indication information is sent to the recipient device.
  • an information indication module (not shown), configured to send indication information, where the indication information is used to indicate the set period. That is, the indication information is sent to the recipient device.
  • the transmission resource selection device and user equipment provided by the embodiments of the present invention, when the Mode 2 resource allocation method is adopted after DRX is introduced on the SL, in order to ensure that the selected resources can fall within the activation time of the receiver, in the optional resources
  • the set such as the optional resource set specified in the existing related protocols, or the optional resource set defined in the prior art, or the optional resource set proposed by other subsequent related technical solutions, according to the service of the data to be sent Type characteristics, activation time, determine the preferred resource set, for periodic services, not only add the transmission resources in the optional resource set within the activation time of the periodic start to the preferred resource set, but also add the transmission resources located in the aperiodic service.
  • the transmission resources within the active activation time are added to the preferred resource set, and by introducing the reserved activation time and corresponding configuration parameters, both parties can establish a unified understanding of the subsequent reserved activation time; and then select the transmission resources from the preferred resource set to send data. , so that the resource selected by the sender can fall within the activation time of the receiver to ensure the reliability of data transmission.
  • an embodiment of the present invention further provides a user equipment, including the transmission resource selection apparatus in each of the foregoing embodiments.
  • the above-mentioned transmission resource selection device may correspond to a chip with a specific transmission resource selection function in the user equipment, such as a SOC (System-On-a-Chip, system on chip), a baseband chip, etc.; A chip module with transmission resource selection function; or a chip module corresponding to a chip with data processing function.
  • a SOC System-On-a-Chip, system on chip
  • a baseband chip etc.
  • a chip module with transmission resource selection function or a chip module corresponding to a chip with data processing function.
  • each module/unit included in each device and product described in the above embodiments it may be a software module/unit, a hardware module/unit, or a part of a software module/unit, a part of which is a software module/unit. is a hardware module/unit.
  • each module/unit included therein may be implemented by hardware such as circuits, or at least some of the modules/units may be implemented by a software program.
  • Running on the processor integrated inside the chip the remaining (if any) part of the modules/units can be implemented by hardware such as circuits; for each device and product applied to or integrated in the chip module, the modules/units contained therein can be They are all implemented by hardware such as circuits, and different modules/units can be located in the same component of the chip module (such as chips, circuit modules, etc.) or in different components, or at least some of the modules/units can be implemented by software programs.
  • the software program runs on the processor integrated inside the chip module, and the remaining (if any) part of the modules/units can be implemented by hardware such as circuits; for each device and product applied to or integrated in the terminal, each module contained in it
  • the units/units may all be implemented in hardware such as circuits, and different modules/units may be located in the same component (eg, chip, circuit module, etc.) or in different components in the terminal, or at least some of the modules/units may be implemented by software programs Realization, the software program runs on the processor integrated inside the terminal, and the remaining (if any) part of the modules/units can be implemented in hardware such as circuits.
  • An embodiment of the present invention further provides a computer-readable storage medium, where the computer-readable storage medium is a non-volatile storage medium or a non-transitory storage medium, on which a computer program is stored, and the computer program is executed by a processor
  • the steps of the transmission resource selection method provided by the above-mentioned embodiment corresponding to FIG. 3 are executed at runtime.
  • the steps of the transmission resource selection method provided by the above-mentioned embodiment corresponding to FIG. 3 are executed.
  • An embodiment of the present invention further provides another transmission resource selection device, including a memory and a processor, where the memory stores a computer program that can be run on the processor, and the processor executes the computer program when the processor runs the computer program.
  • FIG. 3 corresponds to the steps of the transmission resource selection method provided by the embodiment.
  • An embodiment of the present invention further provides an electronic device, including a memory and a processor, the memory stores a computer program that can run on the processor, and the processor executes the above-mentioned FIG. 3 when the computer program runs. It corresponds to the steps of the transmission resource selection method provided by the embodiment.

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

Abstract

L'invention concerne un procédé et un appareil de sélection de ressource de transmission, et un équipement utilisateur. Le procédé comprend les étapes suivantes : un premier dispositif acquiert un ensemble de ressources sélectionnables ; détermine un ensemble de ressources préféré en fonction d'au moins l'un des éléments suivants : le type de service de données devant être envoyées, un instant d'activation et l'ensemble de ressources sélectionnables ; et sélectionne, dans l'ensemble de ressources préféré, les ressources de transmission utilisées pour transmettre un service de données. En utilisant la présente invention, des ressources sélectionnées par un expéditeur peuvent tomber dans l'instant d'activation d'un récepteur, ce qui garantit la fiabilité d'une transmission de données.
PCT/CN2022/078229 2021-03-31 2022-02-28 Procédé et appareil de sélection de ressource de transmission, et équipement utilisateur WO2022206248A1 (fr)

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