WO2019154330A1 - Procédé de rétroaction, système, dispositif électronique et support de stockage lisible par ordinateur - Google Patents

Procédé de rétroaction, système, dispositif électronique et support de stockage lisible par ordinateur Download PDF

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Publication number
WO2019154330A1
WO2019154330A1 PCT/CN2019/074471 CN2019074471W WO2019154330A1 WO 2019154330 A1 WO2019154330 A1 WO 2019154330A1 CN 2019074471 W CN2019074471 W CN 2019074471W WO 2019154330 A1 WO2019154330 A1 WO 2019154330A1
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WIPO (PCT)
Prior art keywords
data
feedback information
node
resource
receiving node
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PCT/CN2019/074471
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English (en)
Chinese (zh)
Inventor
冯媛
彭莹
赵锐
郑石磊
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电信科学技术研究院有限公司
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Publication of WO2019154330A1 publication Critical patent/WO2019154330A1/fr

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00—Arrangements for detecting or preventing errors in the information received
    • H04L1/12—Arrangements for detecting or preventing errors in the information received by using return channel
    • H04L1/16—Arrangements for detecting or preventing errors in the information received by using return channel in which the return channel carries supervisory signals, e.g. repetition request signals
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00—Arrangements for detecting or preventing errors in the information received
    • H04L1/12—Arrangements for detecting or preventing errors in the information received by using return channel
    • H04L1/16—Arrangements for detecting or preventing errors in the information received by using return channel in which the return channel carries supervisory signals, e.g. repetition request signals
    • H04L1/1607—Details of the supervisory signal
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/04—Wireless resource allocation
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/04—Wireless resource allocation
    • H04W72/044—Wireless resource allocation based on the type of the allocated resource
    • H04W72/0446—Resources in time domain, e.g. slots or frames
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/12—Wireless traffic scheduling
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/12—Wireless traffic scheduling
    • H04W72/1263—Mapping of traffic onto schedule, e.g. scheduled allocation or multiplexing of flows

Definitions

  • PC5 transmits data between user equipment (UE) and the UE.
  • UE user equipment
  • the interface already supports the transmission of basic road safety-based service data.
  • the size of the transmitted data packet is between 50 and 1200 bytes.
  • the resource scheduling mechanism adopted by the receiving node and the transmitting node during data transmission is based on perceptual semi-persistent scheduling and probability. Specifically, each node senses the resource occupancy of other nodes and the subsequent resource occupation in real time. When any node (sending node) needs to select a resource, select an appropriate idle resource according to the resource occupancy of other nodes perceived in real time. transfer data. After the idle node selects an idle resource, it continues to occupy under certain conditions (for example, configured to use 5 times), and the other resources are reselected until the trigger condition of the reselection is satisfied.
  • Embodiments of the present invention provide a feedback method, system, electronic device, and computer readable storage medium for solving the problem of continuous collision of resources.
  • An embodiment of the present invention provides a feedback method, including: receiving, by a receiving node, first data sent by a sending node; the receiving node determining, according to the first data, feedback information; the feedback information is used to identify whether a resource collision exists; The receiving node groups the feedback information and the second data according to a preset format to form target data; the second data is service data to be transmitted by the receiving node; and the second data is used by the receiving node.
  • the occupied resource sends the target data to the sending node, so that the sending node determines whether to reselect the resource according to the feedback information in the target data.
  • the receiving node grouping the feedback information with the second data, including: the receiving node, the feedback information is in the form of a media access control control unit MAC CE The second data is grouped.
  • the preset format includes a first preset location in the MAC CE
  • the receiving node groups the feedback information in the form of a MAC CE with the second data, including: the receiving node
  • the feedback information is added to the first preset location of the MAC CE, and is grouped with the second data.
  • the preset format further includes a second preset location of the MAC header;
  • the feedback information further includes a resource identifier and/or a node identifier, where the resource identifier and/or the node identifier is used to identify that the feedback information is corresponding.
  • the resource and the node; the receiving node adds the feedback information to the first preset location of the MAC CE, and performs grouping with the second data, including: the receiving node according to the second preset location Adding a field indicating the length of the feedback information, and adding the feedback information to a first preset location of the MAC CE, and grouping the second data.
  • the receiving node grouping the feedback information with the second data, including: after the receiving node determines that the sending node sends the first data as the last transmission, according to the The preset format groups the feedback information and the second data.
  • the first data includes scheduling allocation information and service data associated with the scheduling allocation information; the feedback information is negative feedback information; and the receiving node determines the feedback information according to the first data, including: The receiving node parses the first data, and the parsing result satisfies a preset condition, and generates the negative feedback information; the preset condition includes any one of the following contents: the scheduling allocation information is successfully parsed and the sending node is to be transmitted.
  • the service data analysis fails; the last scheduling allocation information is determined to determine that the target resource is reserved, and the corresponding scheduling allocation information is not correctly parsed on the target resource; the scheduling allocation information is successfully parsed, and the node in the analysis result is The identity does not match the node ID of the previous appointment.
  • the method further includes: receiving, by the receiving node, third data sent by the sending node; The third data is sent after the sending node reselects the resource.
  • the embodiment of the present invention provides a feedback system, including: a receiving node and a sending node, where the receiving node includes: a receiving unit, configured to receive first data sent by the sending node; and a processing unit, configured to use, according to the first Determining feedback information; the feedback information is used to identify whether there is a resource collision; the feedback information is grouped with the second data according to a preset format to form target data; and the second data is the receiving node to be transmitted.
  • the sending unit is configured to send the target data to the sending node by using the resource occupied by the second data, so that the sending node determines whether to reselect the resource according to the feedback information in the target data.
  • the processing unit is configured to: group the feedback information with the second data in a form of a media access control control unit MAC CE.
  • the preset format includes a first preset location in the MAC CE
  • the processing unit is configured to: add the feedback information to a first preset location of the MAC CE, and The second data is grouped.
  • the preset format further includes a second preset location of the MAC header;
  • the feedback information further includes a resource identifier and/or a node identifier, where the resource identifier and/or the node identifier is used to identify that the feedback information is corresponding.
  • the processing unit is configured to: add a field indicating the length of the feedback information according to the second preset location, and add the feedback information to the first preset location of the MAC CE, and The second data is grouped.
  • the processing unit is configured to: after determining that the sending node sends the first data as the last transmission, grouping the feedback information and the second data according to the preset format.
  • the first data includes scheduling allocation information and service data associated with the scheduling allocation information; the feedback information is negative feedback information; and the processing unit is configured to: parse the first data, and parse If the result meets the preset condition, the negative feedback information is generated; the preset condition includes any one of the following: the scheduling allocation information is successfully parsed and the service data to be transmitted by the sending node fails to be parsed; and the last scheduling allocation information is determined.
  • the target resource is reserved, and the corresponding scheduling allocation information is not correctly parsed on the target resource; the scheduling allocation information is successfully parsed, and the node identifier in the analysis result does not match the node identifier of the last reservation.
  • the receiving unit is further configured to: receive third data sent by the sending node, where the third data is sent after the sending node reselects a resource.
  • An embodiment of the present invention provides an electronic device, including: a memory, configured to store a program instruction, a processor, configured to determine, according to the first data, feedback information, where the feedback information is used to identify whether a resource collision exists; Formatting the feedback information and the second data to form target data; the second data is service data to be transmitted by the receiving node; and the receiver is configured to receive first data sent by the sending node; The resource occupied by the second data sends the target data to the sending node, so that the sending node determines whether to reselect the resource according to the feedback information in the target data.
  • the processor is configured to: group the feedback information with the second data in a form of a media access control control unit MAC CE.
  • the preset format includes a first preset location in the MAC CE
  • the processor is configured to: add the feedback information to a first preset location of the MAC CE, and The second data is grouped.
  • the preset format further includes a second preset location of the MAC header;
  • the feedback information further includes a resource identifier and/or a node identifier, where the resource identifier and/or the node identifier is used to identify that the feedback information is corresponding.
  • a processor configured to: add a field indicating the length of the feedback information according to the second preset location, and add the feedback information to the first preset location of the MAC CE, and The second data is grouped.
  • the processor is configured to: after determining that the sending node sends the first data as the last transmission, grouping the feedback information and the second data according to the preset format.
  • the first data includes scheduling allocation information and service data associated with the scheduling allocation information;
  • the feedback information is negative feedback information;
  • the processor is configured to: parse the first data, and parse If the result meets the preset condition, the negative feedback information is generated;
  • the preset condition includes any one of the following: the scheduling allocation information is successfully parsed and the service data to be transmitted by the sending node fails to be parsed; and the last scheduling allocation information is determined.
  • the target resource is reserved, and the corresponding scheduling allocation information is not correctly parsed on the target resource; the scheduling allocation information is successfully parsed, and the node identifier in the analysis result does not match the node identifier of the last reservation.
  • the transceiver is further configured to: receive third data sent by the sending node, where the third data is sent after the sending node reselects a resource.
  • Embodiments of the present invention provide a computer readable storage medium storing computer executable instructions for causing the computer to perform the feedback method described above.
  • the receiving node determines the feedback information according to the first data sent by the sending node; and the feedback information is used to identify whether there is a resource collision; therefore, the receiving node determines whether it needs to be based on the feedback information in the received target data. Re-selecting resources helps to avoid the constant collision of resources.
  • the receiving node combines the feedback information with the second data according to a preset format to form target data, and when the target data is sent to the sending node, does not need to allocate resources specifically for the feedback information, and is occupied by the second data.
  • the resource sends the target data to the sending node; thus, the resource collision can be further avoided.
  • FIG. 1 is a schematic structural diagram of a communication system according to an embodiment of the present invention.
  • FIG. 2 is a schematic flowchart of a method for a feedback method according to an embodiment of the present invention
  • FIG. 3 is a schematic structural diagram of a receiving node in a feedback system according to an embodiment of the present disclosure
  • FIG. 4 is a schematic structural diagram of an electronic device according to an embodiment of the present invention.
  • FIG. 1 is a schematic diagram showing the architecture of a communication system to which an embodiment of the present invention is applied.
  • the system architecture can include a transmitting node 101 and a receiving node 102. Data can be transmitted between the transmitting node 101 and the receiving node 102 through the PC5 interface.
  • the system may be a V2X system, and the transmitting node 101 and/or the receiving node 102 may be a V2V terminal, a V2I terminal, or a V2P terminal or the like.
  • FIG. 1 illustrates an example in which the transmitting node 101 and the receiving node 102 are both vehicles.
  • FIG. 2 exemplarily shows a schematic flowchart of a feedback method provided by an embodiment of the present invention.
  • the feedback method includes the following steps:
  • Step 201 The receiving node receives the first data sent by the sending node.
  • Step 202 The receiving node determines, according to the first data, feedback information, where the feedback information is used to identify whether there is a resource collision.
  • Step 203 The receiving node groups the feedback information and the second data according to a preset format to form target data, where the second data is service data to be transmitted by the receiving node.
  • Step 204 The receiving node sends the target data to the sending node by using the resource occupied by the second data, so that the sending node determines whether to reselect the resource according to the feedback information in the target data.
  • the receiving node determines the feedback information according to the first data sent by the sending node; and the feedback information is used to identify whether there is a resource collision; therefore, the receiving node determines whether it needs to be based on the feedback information in the received target data. Re-selecting resources helps to avoid the constant collision of resources.
  • the receiving node combines the feedback information with the second data according to a preset format to form target data, and when the target data is sent to the sending node, does not need to allocate resources specifically for the feedback information, and is occupied by the second data.
  • the resource sends the target data to the sending node; thus, the resource collision can be further avoided.
  • the resource is a time slot or a time-frequency block.
  • the preset format may be pre-configured in a car-linked system.
  • the embodiment of the present invention provides a specific implementation manner in which the receiving node groups the feedback information and the second data according to the preset format: the receiving node controls the feedback information by using media access control.
  • the unit MAC CE form is grouped with the second data.
  • the sending node can determine the feedback information as soon as possible after receiving the target data, thereby determining whether the resource needs to be reselected.
  • the receiving node may send the information together to the sending node on a physical Sidelink Shared Channel (PSSCH).
  • PSSCH physical Sidelink Shared Channel
  • the preset format includes a first preset location in the MAC CE
  • the receiving node groups the feedback information in the form of a MAC CE with the second data, including: the receiving node
  • the feedback information is added to the first preset location of the MAC CE, and is grouped with the second data.
  • the preset format further includes a second preset location of the MAC header;
  • the feedback information further includes a resource identifier and/or a node identifier, where the resource identifier and/or the node identifier is used to identify a resource corresponding to the feedback information.
  • the receiving node adds the feedback information to the first preset location of the MAC CE, and performs grouping with the second data, including: the receiving node adds an indication according to the second preset location And feeding back a field of the information length, and adding the feedback information to the first preset location of the MAC CE, and grouping the second data.
  • the feedback information may be at a first preset position of the MAC CE.
  • the acknowledgement character (Acknowledgement, ACK) or Negative Acknowledgement (NACK) of 1 bit may be performed at the first preset position of the MAC CE; the receiving node identifier of several bits may also be superimposed; according to a preset format Ok, no specific restrictions are made here.
  • the feedback information is variable. Therefore, it is necessary to indicate the length of the feedback information in the MAC header.
  • a second preset position indicating the length of the feedback information is included in the preset format.
  • the feedback information further includes a resource identifier and/or a node identifier, which is a resource identifier and a user identifier that are dynamically broadcasted when the group is broadcasted in the group, and therefore is known to all nodes in the group.
  • a bitmap can be used.
  • the feedback information includes positive feedback information and negative feedback information; the receiving node may perform feedback when determining that the feedback information is negative feedback information; when it is determined that the feedback information is positive feedback, no feedback is performed. It is also possible to perform feedback regardless of whether the feedback information is positive feedback information or negative feedback information.
  • the receiving node determines the feedback information according to the first data, including:
  • the receiving node parses the first data, and the parsing result satisfies a preset condition, and generates the negative feedback information
  • the preset condition includes any one of the following contents:
  • the first data sent by the sending node to the receiving node includes scheduling allocation information and service data associated with the scheduling allocation information.
  • the resource identifier and/or the node identifier may identify a resource with or without a resource collision and an identifier of a node at which the resource collides.
  • the sending node when the sending node determines that the feedback information in the target data is negative feedback, it indicates that the resource currently selected by the sending node has a resource collision problem, and the resource needs to be reselected to avoid continuous collision of resources.
  • the sending node determines that the feedback information is negative feedback information
  • the resource is immediately reselected. Specifically, it may be: releasing the current resource and reselecting the resource. Therefore, the problem of continuous collision can be avoided.
  • the receiving node 1 and the transmitting node 2 are unicast nodes, and the resources occupied by the receiving node 1 are on the Transmission Time Interval (TTI) X, and the resources occupied by the transmitting node 2 are on the TTI Y. Then: the receiving node 1 makes feedback to the transmitting node 2 on the TTI X; the transmitting node 2 gives feedback to the receiving node 1 on the TTI Y.
  • TTI Transmission Time Interval
  • Manner 1 The receiving node 1 adds the feedback information to a first preset location of the MAC CE, and performs grouping with the second data, and uses target data formed after the group packet to be occupied by the second data. The resource is sent to the sending node 2.
  • Manner 2 The receiving node 1 adds a field indicating the length of the feedback information according to the second preset location, and adds the feedback information to the first preset location of the MAC CE, and the second data.
  • the group packet is sent, and the target data formed after the group packet is sent to the sending node 2 by the resource occupied by the second data.
  • the receiving node 1 and the transmitting node 2 are multicast nodes, the resources occupied by the receiving node 1 are on the TTI X, and the resources occupied by the transmitting node 2 are on the TTI Y. Then: the receiving node 1 makes feedback to the transmitting node 2 on the TTI X; the transmitting node 2 gives feedback to the receiving node 1 on the TTI Y.
  • the specific feedback methods can be as follows:
  • Method 1 Feedback is provided on both positive feedback information and negative feedback information.
  • the receiving node 1 adds a field indicating the length of the feedback information according to the second preset location, and adds the feedback information to the first preset location of the MAC CE, and the second data.
  • the group packet is sent, and the target data formed after the group packet is sent to the sending node 2 by the resource occupied by the second data.
  • Method 2 Only feedback on negative feedback or only positive feedback.
  • the receiving node determines that the feedback information is negative feedback information according to the first data, adding a field indicating the length of the feedback information according to the second preset location, and adding the feedback information to the MAC
  • the first preset location of the CE is grouped with the second data, and the target data formed after the group packet is sent to the sending node 2 by using the resource occupied by the second data.
  • the receiving node after the receiving node sends the target data to the sending node by using the resource occupied by the second data, the receiving node further includes: receiving, by the receiving node, third data sent by the sending node; The third data is sent after the sending node reselects the resource.
  • the sending node when the sending node determines that the feedback information in the target data is positive feedback information, it indicates that there is no collision problem using the resource, and the sending node may continuously occupy the resource until the condition for triggering resource reselection is satisfied. .
  • the receiving node groups the feedback information and the second data according to the preset format, including: after the receiving node determines that the sending node sends the first data as the last transmission, And, the feedback information and the second data are grouped according to the preset format.
  • the feedback is performed after determining that the first data sent by the sending node is the last data. Therefore, the feedback is per TB level; thus, in the case of continuously reducing the continuous collision of resources, Reduce the probability of resource reselection, and thus reduce feedback overhead.
  • the resources occupied by the sending node are TTI 5 and TTI 10; the resources occupied by the receiving node are TTI 6 and TTI 15; the transmitting node transmits the data to be transmitted of the transmitting node to the receiving node for the first time by using the resource of TTI5, and the receiving node is the first time.
  • the data of the receiving node is transmitted to the transmitting node by using the resource of the TTI 6.
  • the receiving node determines that the data to be transmitted for the first transmission is successfully received, and the receiving node does not perform feedback.
  • the transmitting node transmits the data to be transmitted of the transmitting node to the receiving node for the second time by using the resource of the TTI 10, and the receiving node determines that the data to be transmitted transmitted by the transmitting node by using the resource of the TTI 10 is the last data, the receiving node is the second time.
  • the data to be transmitted and the feedback information of the receiving node are transmitted to the transmitting node by using the resources of the TTI 15.
  • the receiving node determines the feedback information according to the first data sent by the sending node; and the feedback information is used to identify whether there is a resource collision; therefore, the receiving node determines whether the feedback information in the received target data is based on Need to re-select resources to help avoid the constant collision of resources.
  • the receiving node combines the feedback information with the second data according to a preset format to form target data, and when the target data is sent to the sending node, does not need to allocate resources specifically for the feedback information, and is occupied by the second data.
  • the resource sends the target data to the sending node; thus, the resource collision can be further avoided.
  • FIG. 3 is a schematic structural diagram of a receiving node in a feedback system according to an embodiment of the present invention.
  • the receiving node 300 includes a receiving unit 301, a processing unit 302, and a sending unit 303. among them:
  • a receiving unit configured to receive first data sent by the sending node
  • a processing unit configured to determine feedback information according to the first data; the feedback information is used to identify whether there is a resource collision; and the feedback information is combined with the second data according to a preset format to form target data;
  • the second data is service data to be transmitted by the receiving node;
  • a sending unit configured to send the target data to the sending node by using the resource occupied by the second data, so that the sending node determines whether to reselect the resource according to the feedback information in the target data.
  • the processing unit is configured to: group the feedback information with the second data in a form of a media access control control unit MAC CE.
  • the preset format includes a first preset location in the MAC CE
  • the processing unit is configured to: add the feedback information to a first preset location of the MAC CE, and The second data is grouped.
  • the preset format further includes a second preset location of the MAC header;
  • the feedback information further includes a resource identifier and/or a node identifier, where the resource identifier and/or the node identifier is used to identify that the feedback information is corresponding.
  • the processing unit is configured to: add a field indicating the length of the feedback information according to the second preset location, and add the feedback information to the first preset location of the MAC CE, and The second data is grouped.
  • the processing unit is configured to: after determining that the sending node sends the first data as the last transmission, grouping the feedback information and the second data according to the preset format.
  • the first data includes scheduling allocation information and service data associated with the scheduling allocation information; the feedback information is negative feedback information; and the processing unit is configured to: parse the first data, and parse If the result meets the preset condition, the negative feedback information is generated; the preset condition includes any one of the following: the scheduling allocation information is successfully parsed and the service data to be transmitted by the sending node fails to be parsed; and the last scheduling allocation information is determined.
  • the target resource is reserved, and the corresponding scheduling allocation information is not correctly parsed on the target resource; the scheduling allocation information is successfully parsed, and the node identifier in the analysis result does not match the node identifier of the last reservation.
  • the receiving unit is further configured to: receive third data sent by the sending node, where the third data is sent after the sending node reselects a resource.
  • the receiving node determines the feedback information according to the first data sent by the sending node; and the feedback information is used to identify whether there is a resource collision; therefore, the receiving node determines whether the feedback information in the received target data is based on Need to re-select resources to help avoid the constant collision of resources.
  • the receiving node combines the feedback information with the second data according to a preset format to form target data, and when the target data is sent to the sending node, does not need to allocate resources specifically for the feedback information, and is occupied by the second data.
  • the resource sends the target data to the sending node; thus, the resource collision can be further avoided.
  • FIG. 4 is a schematic structural diagram of an electronic device provided by the present application.
  • the electronic device 400 includes a processor 401, a memory 402, and a transceiver 403; wherein the processor 401, the memory 402, and the transceiver 403 are connected to one another via a bus 404.
  • the memory 402 is used to store programs; in particular, the programs may include program code, the program code including computer operating instructions.
  • the memory 402 may include a volatile memory such as a random-access memory (RAM); the memory may also include a non-volatile memory such as a flash memory.
  • RAM random-access memory
  • HDD hard disk drive
  • SSD solid-state drive
  • Memory 402 stores the following elements, executable modules or data structures, or subsets thereof, or their extended sets:
  • Operation instructions include various operation instructions for implementing various operations.
  • Operating system Includes a variety of system programs for implementing various basic services and handling hardware-based tasks.
  • the bus 404 can be a peripheral component interconnect (PCI) bus or an extended industry standard architecture (EISA) bus.
  • PCI peripheral component interconnect
  • EISA extended industry standard architecture
  • the bus can be divided into an address bus, a data bus, a control bus, and the like. For ease of representation, only one thick line is shown in Figure 4, but it does not mean that there is only one bus or one type of bus.
  • the processor 401 may be a central processing unit (CPU), a network processor (NP), or a combination of a CPU and an NP. It can also be a hardware chip.
  • the hardware chip may be an application-specific integrated circuit (ASIC), a programmable logic device (PLD), or a combination thereof.
  • the PLD may be a complex programmable logic device (CPLD), a field-programmable gate array (FPGA), a general array logic (GAL), or any combination thereof.
  • the processor 401 is configured to read a program in the memory 402, and perform the following method: determining feedback information according to the first data; the feedback information is used to identify whether a resource collision exists; The feedback information is grouped with the second data to form target data; the second data is service data to be transmitted by the receiving node;
  • the memory 402 is configured to store one or more executable programs, and may store data used by the processor 401 when performing an operation;
  • the transceiver 403 is configured to receive first data sent by the sending node under the control of the processor 401, and send the target data to the sending node by using resources occupied by the second data, so that The sending node determines whether to reselect the resource according to the feedback information in the target data.
  • the processor is configured to: group the feedback information with the second data in a form of a media access control control unit MAC CE.
  • the preset format includes a first preset location in the MAC CE
  • the processor is configured to: add the feedback information to a first preset location of the MAC CE, and The second data is grouped.
  • the preset format further includes a second preset location of the MAC header;
  • the feedback information further includes a resource identifier and/or a node identifier, where the resource identifier and/or the node identifier is used to identify that the feedback information is corresponding.
  • a processor configured to: add a field indicating the length of the feedback information according to the second preset location, and add the feedback information to the first preset location of the MAC CE, and The second data is grouped.
  • the processor is configured to: after determining that the sending node sends the first data as the last transmission, grouping the feedback information and the second data according to the preset format.
  • the first data includes scheduling allocation information and service data associated with the scheduling allocation information;
  • the feedback information is negative feedback information;
  • the processor is configured to: parse the first data, and parse If the result meets the preset condition, the negative feedback information is generated;
  • the preset condition includes any one of the following: the scheduling allocation information is successfully parsed and the service data to be transmitted by the sending node fails to be parsed; and the last scheduling allocation information is determined.
  • the target resource is reserved, and the corresponding scheduling allocation information is not correctly parsed on the target resource; the scheduling allocation information is successfully parsed, and the node identifier in the analysis result does not match the node identifier of the last reservation.
  • the transceiver is further configured to: receive third data sent by the sending node, where the third data is sent after the sending node reselects a resource.
  • the receiving unit 301 can be implemented by a transceiver
  • the processing unit 302 can be implemented by a processor.
  • electronic device 400 can include a processor 401, a transceiver 403, and a memory 402.
  • the memory 402 can be used to store a program/code pre-installed at the time of shipment of the electronic device 400, and can also store a code or the like for execution of the processor 401.
  • the receiving node determines the feedback information according to the first data sent by the sending node; and the feedback information is used to identify whether there is a resource collision; therefore, receiving The node determines whether it is necessary to re-select resources according to the feedback information in the received target data, which helps to avoid continuous collision of resources.
  • the receiving node combines the feedback information with the second data according to a preset format to form target data, and when the target data is sent to the sending node, does not need to allocate resources specifically for the feedback information, and is occupied by the second data.
  • the resource sends the target data to the sending node; thus, the resource collision can be further avoided.
  • the computer program product includes one or more instructions.
  • the computer can be a general purpose computer, a special purpose computer, a computer network, or other programmable device.
  • the instructions may be stored in a computer storage medium or transferred from one computer storage medium to another computer storage medium, for example, the instructions may be wired from a website site, computer, server or data center (eg, coaxial cable, Fiber, Digital Subscriber Line (DSL) or wireless (eg infrared, wireless, microwave, etc.) is transmitted to another website, computer, server or data center.
  • the computer storage medium can be any available media that can be accessed by a computer or a data storage device such as a server, data center, or the like that includes one or more available media.
  • the usable medium may be a magnetic medium (eg, a floppy disk, a hard disk, a magnetic tape, a magneto-optical disk (MO), etc.), an optical medium (eg, CD, DVD, BD, HVD, etc.), or a semiconductor medium (eg, ROM, EPROM, EEPROM, non-volatile memory (NAND FLASH), solid state disk (SSD), etc.
  • a magnetic medium eg, a floppy disk, a hard disk, a magnetic tape, a magneto-optical disk (MO), etc.
  • an optical medium eg, CD, DVD, BD, HVD, etc.
  • a semiconductor medium eg, ROM, EPROM, EEPROM, non-volatile memory (NAND FLASH), solid state disk (SSD), etc.
  • SSD solid state disk
  • Embodiments of the present application are described with reference to flowchart illustrations and/or block diagrams of methods, devices (systems), and computer program products according to embodiments of the present application. It will be understood that each flow and/or block of the flowcharts and/or block diagrams, and combinations of flow and/or blocks in the flowcharts and/or ⁇ RTIgt; These instructions can be provided to a processor of a general purpose computer, special purpose computer, embedded processor, or other programmable data processing device to produce a machine such that instructions executed by a processor of a computer or other programmable data processing device are utilized for implementation A means of function specified in a flow or a flow and/or a block diagram of a block or blocks.
  • the instructions can also be stored in a computer readable memory that can direct a computer or other programmable data processing device to operate in a particular manner, such that the instructions stored in the computer readable memory produce an article of manufacture comprising the instruction device.

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

Abstract

La présente invention concerne un procédé de rétroaction, un système, un dispositif électronique et un support de stockage lisible par ordinateur, destinés à être utilisés dans la résolution du problème de collision continue de ressources dans l'état de la technique. Dans les modes de réalisation de la présente invention, un nœud de réception reçoit des premières données envoyées par un nœud d'envoi ; le nœud de réception détermine des informations de rétroaction selon les premières données, les informations de rétroaction étant utilisées pour identifier si une collision de ressources existe ; le nœud de réception met en paquet les informations de rétroaction et les secondes données en un format prédéfini pour former des données cibles, les secondes données étant des données de service qui doivent être transmises par le nœud de réception ; le nœud de réception envoie les données cibles au nœud d'envoi en utilisant des ressources occupées par les secondes données, de sorte que le noeud d'envoi détermine, selon les informations de rétroaction dans les données cibles, s'il faut resélectionner des ressources. Par conséquent, le nœud de réception détermine si une resélection de ressource est requise selon les informations de rétroaction reçues dans les données cibles, et évite ainsi une collision continue de ressources ; de plus, l'attribution de ressources spécifiquement pour les informations de rétroaction n'est pas requise, de façon à éviter davantage la collision continue des ressources.
PCT/CN2019/074471 2018-02-09 2019-02-01 Procédé de rétroaction, système, dispositif électronique et support de stockage lisible par ordinateur WO2019154330A1 (fr)

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CN201810136866.3 2018-02-09

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