WO2018171563A1 - 一种数据反馈资源的确定方法及装置 - Google Patents
一种数据反馈资源的确定方法及装置 Download PDFInfo
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- WO2018171563A1 WO2018171563A1 PCT/CN2018/079505 CN2018079505W WO2018171563A1 WO 2018171563 A1 WO2018171563 A1 WO 2018171563A1 CN 2018079505 W CN2018079505 W CN 2018079505W WO 2018171563 A1 WO2018171563 A1 WO 2018171563A1
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- 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
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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
- H04L5/003—Arrangements for allocating sub-channels of the transmission path
- H04L5/0053—Allocation of signaling, i.e. of overhead other than pilot signals
- H04L5/0055—Physical resource allocation for ACK/NACK
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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
- H04L5/0091—Signaling for the administration of the divided path
- H04L5/0094—Indication of how sub-channels of the path are allocated
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W4/00—Services specially adapted for wireless communication networks; Facilities therefor
- H04W4/30—Services specially adapted for particular environments, situations or purposes
- H04W4/40—Services specially adapted for particular environments, situations or purposes for vehicles, e.g. vehicle-to-pedestrians [V2P]
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W72/00—Local resource management
- H04W72/50—Allocation or scheduling criteria for wireless resources
- H04W72/51—Allocation or scheduling criteria for wireless resources based on terminal or device properties
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W76/00—Connection management
- H04W76/10—Connection setup
- H04W76/11—Allocation or use of connection identifiers
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- 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
- the present application relates to the field of wireless communication technologies, and in particular, to a method and an apparatus for determining data feedback resources.
- the vehicle networking system aims to improve road safety, improve traffic efficiency and provide users with rich streaming services through communication between vehicles and other devices (V2X), including other vehicles.
- V2X vehicles and other devices
- the communication between the vehicles and other devices includes Vehicle to Vehicle (V2V), Vehicle to Pedestrian (V2P) , Vehicle to Network (V2N), etc.
- V2V, V2P, V2I are collectively referred to as V2X.
- LTE Long Term Evolution
- 4G systems has advantages of high rate, low delay, large coverage, and support for high-speed mobile terminals.
- the communication between the vehicle and the external information in the cellular network can make full use of a central scheduler, such as a base station (eNB), to perform dynamic scheduling of transmission resources, thereby reducing the probability of communication collisions and solving the problem of uncontrollable delay.
- eNB base station
- LTE-V2X technology is a technology for information exchange between vehicles based on LTE cellular networks and other devices, and is an extension of existing cellular network technologies.
- the vehicle transmits its own state information to other vehicles or nodes in the surrounding manner by broadcasting, and does not need the base station to perform data forwarding, as shown in FIG. 1A; in the second mode, the vehicle first states its own state. The information is sent to the base station, and the base station transmits the received data to other vehicles or nodes by means of unicast or broadcast, as shown in FIG. 1B.
- the vehicle as the transmitting end can only determine whether the data to be transmitted is completed or not. Since there is no feedback resource for defining the data, the vehicle as the transmitting end cannot determine whether the transmitted data is successfully received, and the data is The reliability of transmission is low.
- the present application provides a method and a device for determining data feedback resources, which are used to solve the problem of poor data transmission reliability existing in the existing vehicle networking technology.
- a method for determining a data feedback resource including:
- the first terminal determines a feedback resource of the first data, where the feedback resource of the first data is a feedback resource in a feedback resource pool;
- the first terminal sends feedback information of the first data to the second terminal on the feedback resource, where the feedback information is used to indicate a receiving state of the first data.
- the beneficial effect is that, after the first terminal receives the first data sent by the second terminal, the first terminal can send the first data to the second terminal on the feedback resource of the first data determined in the feedback resource pool. Feedback information, therefore, the second terminal as the transmitting end can determine whether the transmitted first data is successfully received by detecting the feedback information, thereby improving the reliability of data transmission.
- the determining, by the first terminal, the feedback resource of the first data includes: determining, by the first terminal, time-frequency information and/or a code of the feedback resource of the first data
- the domain information includes frequency domain resource start location information, a frequency domain resource length, and time domain resource indication information, where the code domain information includes a codeword used to send the feedback information.
- the first terminal determines the feedback resource of the first data, including:
- the first terminal acquires configuration information of the feedback resource pool
- the first terminal determines a feedback resource of the first data according to the configuration information of the feedback resource pool.
- the first data determines the feedback resource of the first data according to the configuration information of the feedback resource pool, and the manner is simple, and the feedback resource of the first data is determined in advance, which can prevent the conflict of the feedback resources.
- the first terminal acquires configuration information of the feedback resource pool, including:
- the first terminal acquires configuration information of the feedback resource pool by using pre-configuration information.
- the configuration information of the feedback resource pool can be obtained from the network side or locally in the first terminal, and the implementation manner is flexible and diverse.
- the first terminal acquires configuration information of the feedback resource pool, including:
- the first terminal acquires at least one of frequency domain resource start location information, frequency domain resource length information, time domain subframe offset information, and subframe bitmap information of the feedback resource pool.
- one possible design includes:
- the number of frequency domain resources of the feedback resource pool is determined by the number of subbands of the data resource pool in which the first data is located.
- the first terminal determines the feedback resource of the first data, including:
- the first terminal determines time-frequency information of the feedback resource of the first data according to the time-frequency resource information of the first data.
- the time-frequency information of the feedback resource of the first data is associated with the time-frequency information of the first data, so that the first terminal can quickly determine the feedback resource of the first data according to the time-frequency information of the first data. Frequency information to improve data transmission reliability.
- the time-frequency resource information of the first data acquired by the first terminal includes:
- Time-frequency resource information of the SCI carrying the first data and/or time-frequency resource information of the service data carrying the first data are examples of time-frequency resource information of the SCI carrying the first data and/or time-frequency resource information of the service data carrying the first data.
- the determining, by the first terminal, the feedback resource of the first data includes: determining, by the first terminal, code domain information of the feedback resource of the first data, including:
- the first terminal Obtaining, by the first terminal, the time-frequency resource information of the first data, the ID information of the first terminal, and the ID information of the second terminal, where the first terminal acquires according to the At least one type of information determines code domain information of the feedback resource of the first data.
- the same feedback channel can be multiplexed by code division to provide a solution condition for resource conflicts.
- the first terminal sends the feedback information of the first data to the second terminal on the feedback resource, including:
- the first terminal acquires time domain information that the third terminal sends the second data
- the first terminal determines that the time domain information of the feedback resource of the first data is the same as the time domain information that the third terminal sends the second data, the first terminal delays sending the first subframe by k subframes. Feedback information for a data, where k is an integer greater than zero.
- the foregoing manner can be used to avoid collision of the feedback resources and improve the data.
- Feedback efficiency improves the reliability of data transmission.
- a method for determining a data feedback resource including:
- the second terminal determines a feedback resource of the first data, where the feedback resource of the first data is a feedback resource in a feedback resource pool;
- the second terminal receives, on the feedback resource, feedback information that the first terminal sends the first data, where the feedback information is used to indicate a receiving state of the first data.
- the beneficial effect is that, after the second terminal sends the first data to the first terminal, the feedback information of the first data sent by the first terminal can be received on the feedback resource of the first data determined in the feedback resource pool, and therefore, The second terminal at the transmitting end can determine whether the transmitted first data is successfully received by detecting the feedback information, thereby improving the reliability of the data transmission.
- the determining, by the first terminal, the feedback resource of the first data includes: determining, by the first terminal, time-frequency information and/or a code of the feedback resource of the first data
- the domain information includes frequency domain resource start location information, a frequency domain resource length, and time domain resource indication information, where the code domain information includes a codeword used to send the feedback information.
- the second terminal determines the feedback resource of the first data, including:
- the second terminal acquires configuration information of the feedback resource pool
- the second terminal determines the feedback resource of the first data according to the configuration information of the feedback resource pool.
- the first data determines the feedback resource of the first data according to the configuration information of the feedback resource pool, and the manner is simple, and the feedback resource of the first data is determined in advance, which can prevent the conflict of the feedback resources.
- the second terminal acquires configuration information of the feedback resource pool, including:
- the second terminal acquires configuration information of the feedback resource pool by using pre-configuration information.
- the configuration information of the feedback resource pool can be obtained from the network side or locally in the second terminal, and the implementation manner is flexible and diverse.
- the second terminal acquires configuration information of the feedback resource pool, including:
- the second terminal acquires at least one of frequency domain resource start location information, frequency domain resource length information, time domain subframe offset information, and subframe bitmap information of the feedback resource pool.
- one possible design includes:
- the number of frequency domain resources of the feedback resource pool is determined by the number of subbands of the data resource pool in which the first data is located.
- the second terminal determines the feedback resource of the first data, including:
- the second terminal determines time-frequency information of the feedback resource of the first data according to the time-frequency resource information of the first data.
- the time-frequency information of the feedback resource of the first data is associated with the time-frequency information of the first data, so that the second terminal can quickly determine the time of the feedback resource of the first data according to the time-frequency information of the first data. Frequency information to improve data transmission reliability.
- the time-frequency resource information of the first data acquired by the second terminal includes:
- Time-frequency resource information of the SCI carrying the first data and/or time-frequency resource information of the service data carrying the first data are examples of time-frequency resource information of the SCI carrying the first data and/or time-frequency resource information of the service data carrying the first data.
- the determining, by the second terminal, the feedback resource of the first data includes: determining, by the second terminal, code domain information of the feedback resource of the first data, including:
- time-frequency resource information of the first data at least one of ID information of the first terminal, ID information of the second terminal, and the second terminal according to the acquiring At least one type of information determines code domain information of the feedback resource of the first data.
- the same feedback channel can be multiplexed by code division to provide a solution condition for resource conflicts.
- the receiving, by the second terminal, the feedback information that the first terminal sends the first data on the feedback resource includes:
- the second terminal acquires time domain information that the third terminal sends the second data, where
- the second terminal determines that the time domain information of the feedback resource of the first data is the same as the time domain information of the third terminal that is sent by the third terminal, the second terminal delays receiving the first subframe by k subframes. Feedback information for a data, where k is an integer greater than zero.
- the foregoing manner may be adopted to avoid conflicts of the feedback resources and improve the data.
- Feedback efficiency improves the reliability of data transmission.
- a device for determining data feedback resources including:
- a receiving unit configured to receive first data sent by the peer device
- a processing unit configured to determine a feedback resource of the first data, where the feedback resource of the first data is a feedback resource in a feedback resource pool;
- a sending unit configured to send feedback information of the first data to the peer device on the feedback resource, where the feedback information is used to indicate a receiving state of the first data.
- the processing unit is specifically configured to:
- the code domain information includes a codeword used to send the feedback information.
- the processing unit when the processing unit determines the feedback resource of the first data, the processing unit is specifically configured to:
- the processing unit when the processing unit acquires configuration information of the feedback resource pool, the processing unit is specifically configured to:
- the processing unit when the processing unit acquires configuration information of the feedback resource pool, the processing unit is specifically configured to:
- the number of frequency domain resources of the feedback resource pool is determined by the number of subbands of the data resource pool in which the first data is located.
- the processing unit when the processing unit determines the feedback resource of the first data, the processing unit is specifically configured to:
- the time-frequency resource information of the first data acquired by the processing unit includes:
- Time-frequency resource information of the SCI carrying the first data and/or time-frequency resource information of the service data carrying the first data are examples of time-frequency resource information of the SCI carrying the first data and/or time-frequency resource information of the service data carrying the first data.
- the processing unit when the processing unit determines the feedback resource of the first data, the processing unit is specifically configured to: determine code domain information of the feedback resource of the first data, including:
- the sending unit when the sending unit sends the feedback information of the first data to the peer device on the feedback resource, specifically:
- the processing unit determines that the time domain information of the feedback resource of the first data is the same as the time domain information of the second data sent by the another terminal, delaying k subframes to send feedback information of the first data, Where k is an integer greater than zero.
- a fourth aspect provides a device for determining a data feedback resource, including:
- a sending unit configured to send the first data to the peer device
- a processing unit configured to determine a feedback resource of the first data, where the feedback resource of the first data is a feedback resource in a feedback resource pool;
- a receiving unit configured to receive, on the feedback resource, feedback information that the peer device sends the first data, where the feedback information is used to indicate a receiving state of the first data.
- the processing unit is specifically configured to:
- time-frequency information and/or code domain information of the feedback resource of the first data Determining time-frequency information and/or code domain information of the feedback resource of the first data, where the time-frequency information includes frequency domain resource start location information, length of a frequency domain resource, and time domain resource indication information, where the code domain
- the information includes the codeword used to send the feedback information.
- the processing unit when the processing unit determines the feedback resource of the first data, the processing unit is specifically configured to:
- the processing unit when the processing unit acquires configuration information of the feedback resource pool, the processing unit is specifically configured to:
- the processing unit when the processing unit acquires configuration information of the feedback resource pool, the processing unit is specifically configured to:
- the number of frequency domain resources of the feedback resource pool is determined by the number of subbands of the data resource pool in which the first data is located.
- the processing unit when the processing unit determines the feedback resource of the first data, the processing unit is specifically configured to:
- the time-frequency resource information of the first data acquired by the processing unit includes:
- Time-frequency resource information of the SCI carrying the first data and/or time-frequency resource information of the service data carrying the first data are examples of time-frequency resource information of the SCI carrying the first data and/or time-frequency resource information of the service data carrying the first data.
- the processing unit when the processing unit determines the feedback resource of the first data, the processing unit is specifically configured to: determine code domain information of the feedback resource of the first data, including:
- time-frequency resource information of the first data at least one of the ID information of the peer device, and the ID information of the device, determining the first data according to the acquired at least one information
- the code domain information of the feedback resource Obtaining time-frequency resource information of the first data, at least one of the ID information of the peer device, and the ID information of the device, determining the first data according to the acquired at least one information
- the code domain information of the feedback resource Obtaining time-frequency resource information of the first data, at least one of the ID information of the peer device, and the ID information of the device, determining the first data according to the acquired at least one information
- the code domain information of the feedback resource Obtaining time-frequency resource information of the first data, at least one of the ID information of the peer device, and the ID information of the device, determining the first data according to the acquired at least one information
- the code domain information of the feedback resource Obtaining time-frequency resource information of the first data, at least one of the ID information of the peer device, and the ID information of the device,
- the receiving unit when the receiving unit receives the feedback information that the peer device sends the first data on the feedback resource, the receiving unit is specifically configured to:
- the processing unit determines that the time domain information of the feedback resource of the first data is the same as the time domain information that the another terminal sends the second data, delaying k subframes to receive feedback information of the first data, Where k is an integer greater than zero.
- a terminal device in a fifth aspect, includes a transceiver, a memory, and a processor, wherein the memory is configured to store a set of programs, and the processor is configured to invoke the program stored by the memory to execute A method as described in any of the preceding aspects.
- a terminal device in a sixth aspect, includes a transceiver, a memory, and a processor, wherein the memory is configured to store a set of programs, and the processor is configured to invoke the program stored by the memory to execute A method as described in the second terminal of any of the preceding aspects.
- the present application further provides a computer readable storage medium, configured to store computer software instructions for performing the functions of any of the above first aspect, the first aspect, including A program designed by any one of the methods of designing the first aspect.
- the present application further provides a computer readable storage medium, configured to store computer software instructions for performing the functions of any of the above second aspect and the second aspect, including The program designed by the method of any of the two aspects and the second aspect.
- FIGS. 1A and 1B are schematic diagrams of communication between a vehicle and other nodes provided by the present application.
- FIG. 2 is a flowchart of a method for determining a data feedback resource provided by the present application
- 3A and 3B are schematic diagrams showing feedback resources provided by the present application.
- FIG. 4 is a schematic diagram of a vehicle formation driving scene provided by the present application.
- FIG. 5 is a schematic structural diagram of a device for determining data feedback resources provided by the present application.
- FIG. 6 is a schematic structural diagram of a device for determining a data feedback resource provided by the present application.
- FIG. 7 is a schematic structural diagram of a device for determining data feedback resources provided by the present application.
- FIG. 8 is a schematic structural diagram of a device for determining a data feedback resource provided by the present application.
- the embodiments of the present application may be applied to, but not limited to, device to device (D2D) and V2X communication.
- the terminal in the embodiment of the present application may also be referred to as a user equipment (User Equipment, UE) and a mobile station (Mobile). Station, MS), mobile terminal, etc., optionally, the terminal can be a vehicle, a mobile phone, a tablet, a personal digital assistant (PDA), a point of sale (POS), a vehicle Computers, set-top boxes, etc.
- the V2X communication may include, but is not limited to, vehicle to vehicle (V2V) communication, vehicle-to-infrastructure (V2I) communication, and vehicle and pedestrian (Vehicle-to- Pedestrian, V2P) communication, communication between Vehicle-to-Network (V2N), etc.; among them, V2I communication may include, but is not limited to, vehicle-to-base communication, vehicle-to-roadside unit communication, and vehicle and traffic Communication module communication on the lamp, etc.
- V2V vehicle to vehicle
- V2I vehicle-to-infrastructure
- V2P vehicle and pedestrian communication
- V2N Vehicle-to-Network
- V2I communication may include, but is not limited to, vehicle-to-base communication, vehicle-to-roadside unit communication, and vehicle and traffic Communication module communication on the lamp, etc.
- a V2X system there are usually two ways to communicate between a vehicle and other nodes.
- the vehicle broadcasts its own state information to other vehicles in the vicinity.
- the base station does not need to perform data forwarding.
- This communication method is similar to the D2D system, as shown in FIG. 1A;
- the data of the vehicle is forwarded by the base station.
- the vehicle first transmits the data to the base station, and the base station transmits the received data to other vehicles or nodes by means of unicast or broadcast.
- Figure 1B As shown in Figure 1B.
- the terminal transmits data by means of D2D broadcast, and data may be transmitted in mode 1 or mode 2.
- the base station allocates the determined transmission resource to the terminal; in mode 2, the terminal is in the base station.
- the configured resource pool or the pre-configured resource pool independently selects resources for data transmission.
- D2D communication is a direct transmission of data between two terminals, using a scheduling allocation (SA) part + data (Data) part of the mechanism; SA, usually also known as sidelink control information (Sidelink control information, SCI ), is used to indicate control information of data sent from the originating end, such as time-frequency resource information of data, Modulation and Coding Scheme (MCS) information, frequency hopping indication, timing advance information, receiving group ID information, data Priority information, resource reservation information, retransmission indication information, and the like.
- MCS Modulation and Coding Scheme
- the data refers to the service data sent by the sender in the format indicated by the SA at the time-frequency resource location indicated by the SA, so that the receiving end can receive the data according to the indication of the SA.
- the first terminal After the first terminal in the embodiment of the present application receives the first data sent by the second terminal, the first terminal can send the feedback information of the first data to the second terminal on the feedback resource of the determined first data. Therefore, the second terminal as the transmitting end can determine whether the transmitted first data is successfully received by detecting the feedback information, thereby improving the reliability of the data transmission.
- the method for determining data feedback resources is as follows:
- Step 21 The first terminal receives the first data sent by the second terminal.
- Step 22 The first terminal determines a feedback resource of the first data.
- the feedback resource of the first data is a feedback resource in a feedback resource pool; the feedback resource pool is a set of time-frequency resources, and the feedback resource pool includes at least one resource for transmitting feedback information, and a feedback resource.
- the number of frequency domain resources of the pool is determined by the number of subbands of the data resource pool in which the first data is located.
- the determining, by the first terminal, the feedback resource of the first data includes: determining, by the first terminal, time-frequency information and/or code domain information of a feedback resource of the first data, where the time-frequency information includes a frequency The domain resource start location information, the length of the frequency domain resource, and the time domain resource indication information, where the code domain information includes a codeword used to send the feedback information.
- the first terminal may be determined by the following two implementation manners by using the following two implementation manners.
- a data feedback resource :
- the first terminal acquires configuration information of the feedback resource pool, and determines a feedback resource of the first data according to the configuration information of the feedback resource pool.
- the first terminal acquires configuration information of the feedback resource pool from the network side, for example, may be acquired from a network side device such as a base station or a central controller.
- the first terminal acquires the configuration information of the feedback resource pool by using the pre-configuration information. At this time, the terminal acquires the pre-configuration information from the pre-configuration information.
- the first terminal acquires configuration information of the feedback resource pool, and specifically includes: the first terminal acquires frequency domain resource start location information, frequency domain resource length information, and time domain subframe offset of the feedback resource pool. Information, at least one of the information of the sub-frame bitmap information.
- the first terminal acquires time-frequency resource information of the first data, and determines time-frequency information of the feedback resource of the first data according to the time-frequency resource information of the first data.
- the time-frequency position of the feedback resource is determined by the time-frequency position of the corresponding received first data.
- the received first data includes the SA and the service data
- the feedback resource The time-frequency location is determined by the time-frequency resource of the corresponding SCI carrying the first data, or the time-frequency location of the feedback resource is determined by the time-frequency resource of the service data in the corresponding received first data, specifically FIG. 3A and FIG. 3B are schematic diagrams showing the correspondence between the feedback resource and the time-frequency resource of the first data.
- time-frequency resource information of the first data acquired by the first terminal includes: time-frequency resource information including an SCI that carries the first data, and/or a service that carries the first data. Time-frequency resource information of the data.
- the feedback resource has a corresponding relationship with the time-frequency resource of the corresponding first data, that is, the time-frequency position of the feedback resource can be determined by the time-frequency position of the first data.
- An example of a possible implementation is as follows: :
- M is the total number of sub-bands in one sub-frame
- N is the total number of feedback resources in one subframe.
- each k subband corresponds to one feedback resource, ie
- multiple feedback channels may be multiplexed in a coded manner on a feedback resource. Therefore, when the first terminal determines the feedback resource of the first data, the first The code domain information of a data feedback resource, the specific process is:
- the first terminal Obtaining, by the first terminal, the time-frequency resource information of the first data, the ID information of the first terminal, and the ID information of the second terminal, where the first terminal acquires according to the At least one type of information determines code domain information of the feedback resource of the first data.
- Res data represents the time-frequency position of the data resource
- UE ID tx represents the ID of the data transmitting end
- UE ID rx represents the data receiving The ID of the end.
- Step 23 The first terminal sends feedback information of the first data to the second terminal on the feedback resource, where the feedback information is used to indicate a receiving state of the first data.
- the first terminal successfully receives the first data, it sends an acknowledgement (ACK) message to the second terminal; if no data is received, the feedback information is not sent to the second terminal.
- ACK acknowledgement
- the first terminal sends feedback information of the first data to the second terminal on the feedback resource, where the feedback information is used to describe a channel quality of a transmission channel where the first data is located.
- the first terminal when the first terminal sends the feedback information of the first data to the second terminal, the first terminal acquires time domain information that the third terminal sends the second data, if the first terminal Determining the time domain information of the feedback resource of the first data and the time domain information of the third terminal sending the second data, the first terminal delays sending feedback information of the first data in k subframes, Where k is an integer greater than zero.
- the second data sent by the third terminal may be service data or feedback information.
- the terminal C obtains the terminal C. If the terminal C is the leader vehicle in the vehicle formation, the time domain information of the data is transmitted; if the terminal A sends the subframe of the feedback resource and the terminal C sends the data.
- the subframes are the same, and the terminal A delays k (k is an integer greater than 0) subframes to transmit feedback information.
- the first terminal that is the receiving end determines the feedback resource of the first data after receiving the first data, and sends the first data to the second terminal that is the transmitting end on the determined feedback resource by using the determining method of the car network data feedback resource.
- the feedback information is such that the second terminal as the transmitting end can determine whether the transmitted first data is successfully received, thereby improving the reliability of the data transmission.
- the method for determining the above-mentioned vehicle network data feedback resource can be applied to the process of selecting the first vehicle resource in the vehicle formation driving scene shown in FIG. 4.
- the team leader vehicle In the vehicle formation driving scene, the team leader vehicle periodically broadcasts its own position, direction, speed and other information, and the information does not need to be fed back by the receiving end.
- the team's first vehicle is responsible for the management of the entire fleet, such as controlling the speed of the team, the distance between the cars, joining other vehicles to the team, leaving the team, etc., so the team's first vehicle needs to be unicast or broadcast communication with the team members, and Team members are required to provide feedback.
- the team's first vehicle has two ways to send information that needs feedback:
- the first way periodic transmission, such as the periodic transmission of vehicle spacing information, vehicle speed information, acceleration and deceleration information, etc.; for the information periodically transmitted, the existing V2X listening and selection process can be followed. I will not repeat them here.
- the second way the sending of the event triggering class: if the first vehicle receives the joining request of the other vehicle other than the team, the first vehicle needs to respond to the request; or the first vehicle receives the leaving request of the vehicle within the team, the team The first vehicle needs to respond to the request;
- the terminal when the terminal has data information that needs to be fed back, the resource is reselected, and the terminal selects an available resource to send the data.
- the reserved resource is used to transmit data information that needs to be fed back.
- the network side pre-configured resource is used to transmit data information that needs to be fed back, and sends configuration information of the pre-configured resource to the terminal, where the terminal Receiving configuration information, acquiring pre-configured resources according to the configuration information, and selecting resources from the pre-configured resources for data information transmission.
- the method for determining the above-mentioned vehicle network data feedback resource can also be applied to the resource selection process of other vehicles except the team leader vehicle in the vehicle formation driving scene.
- the resources that need to be excluded in the resource selection window include:
- the terminal excludes the subframes that may be used for the first vehicle in the process of resource selection, thereby avoiding the situation that the terminal and the leader vehicle use the same subframe for data transmission, and the terminal cannot receive the team head vehicle data.
- the embodiment of the present application may divide the functional unit into the terminal according to the foregoing method example.
- each functional unit may be divided according to each function, or two or more functions may be integrated into one processing unit.
- the above integrated unit can be implemented in the form of hardware or in the form of a software functional unit. It should be noted that the division of the unit in the embodiment of the present application is schematic, and is only a logical function division. In actual implementation, there may be another division manner.
- FIG. 5 is a schematic structural diagram of a device for determining data feedback resources provided by an embodiment of the present application.
- the apparatus 500 includes a receiving unit 501, a processing unit 502, and a transmitting unit 503, where:
- the receiving unit 501 is configured to receive first data sent by the peer device.
- the processing unit 502 is configured to determine a feedback resource of the first data, where the feedback resource of the first data is a feedback resource in a feedback resource pool;
- the sending unit 503 is configured to send feedback information of the first data to the peer device on the feedback resource, where the feedback information is used to indicate a receiving state of the first data.
- processing unit 502 is specifically configured to:
- the code domain information includes a codeword used to send the feedback information.
- the processing unit 502 is specifically configured to: when determining the feedback resource of the first data:
- the processing unit 502 when the processing unit 502 obtains the configuration information of the feedback resource pool, the processing unit 502 is specifically configured to:
- the processing unit 502 when the processing unit 502 obtains the configuration information of the feedback resource pool, the processing unit 502 is specifically configured to:
- the number of frequency domain resources of the feedback resource pool is determined by the number of subbands of the data resource pool where the first data is located.
- the processing unit 502 is specifically configured to: when determining the feedback resource of the first data:
- the time-frequency resource information of the first data acquired by the processing unit 502 includes:
- Time-frequency resource information of the SCI carrying the first data and/or time-frequency resource information of the service data carrying the first data are examples of time-frequency resource information of the SCI carrying the first data and/or time-frequency resource information of the service data carrying the first data.
- the determining, by the processing unit 502, when determining the feedback resource of the first data specifically: determining the code domain information of the feedback resource of the first data, including:
- the sending unit 503 when the sending unit 503 sends the feedback information of the first data to the peer device on the feedback resource, the sending unit 503 is specifically configured to:
- processing unit 502 determines that the time domain information of the feedback resource of the first data is the same as the time domain information of the second data sent by the another terminal, delaying transmission of the feedback information of the first data by delaying k subframes Where k is an integer greater than zero.
- the processing unit 502 may be implemented by a processor
- the receiving unit 501 may be implemented by a receiver
- the sending unit 503 may be implemented by a transmitter
- the receiver and the transmitter may be combined into a transceiver implementation.
- the data feedback resource determining device 600 can include a processor 610, a transceiver 620, and a memory 630.
- the memory 630 can be used to store the program/code pre-installed by the device 600 at the factory, or to store code and the like for the execution of the processor 610.
- the processor 610 may be a general-purpose CPU, a microprocessor, an ASIC, or one or more integrated circuits for performing related operations to implement the technical solutions provided by the embodiments of the present invention.
- the device 600 shown in FIG. 6 only shows the processor 610, the transceiver 620, and the memory 630, in a specific implementation process, those skilled in the art will appreciate that the device 600 also includes a normal operation. Other devices that are required. At the same time, those skilled in the art will appreciate that the device 600 may also include hardware devices that implement other additional functions, depending on the particular needs. Moreover, those skilled in the art will appreciate that the device may also only include the devices or modules necessary to implement the embodiments of the present invention, and do not necessarily include all of the devices shown in FIG.
- FIG. 7 is a schematic structural diagram of a device for determining data feedback resources provided by an embodiment of the present application.
- the apparatus 700 includes a transmitting unit 701, a processing unit 702, and a receiving unit 703, where:
- the sending unit 701 is configured to send the first data to the peer device.
- the processing unit 702 is configured to determine a feedback resource of the first data, where the feedback resource of the first data is a feedback resource in a feedback resource pool;
- the receiving unit 703 is configured to receive, on the feedback resource, feedback information that the peer device sends the first data, where the feedback information is used to indicate a receiving state of the first data.
- processing unit 702 is specifically configured to:
- time-frequency information and/or code domain information of the feedback resource of the first data Determining time-frequency information and/or code domain information of the feedback resource of the first data, where the time-frequency information includes frequency domain resource start location information, length of a frequency domain resource, and time domain resource indication information, where the code domain
- the information includes the codeword used to send the feedback information.
- the processing unit 702 is specifically configured to: when determining the feedback resource of the first data:
- the processing unit 702 when the processing unit 702 obtains the configuration information of the feedback resource pool, the processing unit 702 is specifically configured to:
- the processing unit 702 when the processing unit 702 obtains the configuration information of the feedback resource pool, the processing unit 702 is specifically configured to:
- the number of frequency domain resources of the feedback resource pool is determined by the number of subbands of the data resource pool where the first data is located.
- the processing unit 702 is specifically configured to: when determining the feedback resource of the first data:
- the time-frequency resource information of the first data acquired by the processing unit 702 includes:
- Time-frequency resource information of the SCI carrying the first data and/or time-frequency resource information of the service data carrying the first data are examples of time-frequency resource information of the SCI carrying the first data and/or time-frequency resource information of the service data carrying the first data.
- the determining, by the processing unit 702, the code domain information of the feedback resource of the first data, when determining the feedback resource of the first data includes:
- time-frequency resource information of the first data at least one of the ID information of the peer device, and the ID information of the device, determining the first data according to the acquired at least one information
- the code domain information of the feedback resource Obtaining time-frequency resource information of the first data, at least one of the ID information of the peer device, and the ID information of the device, determining the first data according to the acquired at least one information
- the code domain information of the feedback resource Obtaining time-frequency resource information of the first data, at least one of the ID information of the peer device, and the ID information of the device, determining the first data according to the acquired at least one information
- the code domain information of the feedback resource Obtaining time-frequency resource information of the first data, at least one of the ID information of the peer device, and the ID information of the device, determining the first data according to the acquired at least one information
- the code domain information of the feedback resource Obtaining time-frequency resource information of the first data, at least one of the ID information of the peer device, and the ID information of the device,
- the receiving unit 703 when the receiving unit 703 receives the feedback information that the peer device sends the first data on the feedback resource, the receiving unit 703 is specifically configured to:
- processing unit 702 determines that the time domain information of the feedback resource of the first data is the same as the time domain information of the second data sent by the another terminal, delaying k subframes to receive feedback information of the first data Where k is an integer greater than zero.
- the processing unit 702 may be implemented by a processor
- the receiving unit 703 may be implemented by a receiver
- the sending unit 701 may be implemented by a transmitter
- the receiver and the transmitter may be combined into a transceiver implementation.
- the determination device 800 of the data feedback resource may include a processor 810, a transceiver 820, and a memory 830.
- the memory 830 can be used to store the program/code pre-installed when the device 800 is shipped from the factory, or to store code and the like when the processor 810 is executed.
- the processor 810 may be a general-purpose CPU, a microprocessor, an ASIC, or one or more integrated circuits for performing related operations to implement the technical solutions provided by the embodiments of the present invention.
- the device 800 shown in FIG. 8 only shows the processor 810, the transceiver 820, and the memory 830, in a specific implementation process, those skilled in the art will appreciate that the device 800 also includes a normal operation. Other devices that are required. At the same time, those skilled in the art will appreciate that the device 800 may also include hardware devices that implement other additional functions, depending on the particular needs. Moreover, those skilled in the art will appreciate that the device may also include only the devices or modules necessary to implement the embodiments of the present invention, and do not necessarily include all of the devices shown in FIG.
- the embodiment of the present application further provides a computer readable storage medium for storing computer software instructions required to execute the foregoing processor, which includes a program for executing the above-mentioned processor.
- embodiments of the present application can be provided as a method, system, or computer program product.
- the present application can take the form of an entirely hardware embodiment, an entirely software embodiment, or an embodiment in combination of software and hardware.
- the application can take the form of a computer program product embodied on one or more computer-usable storage media (including but not limited to disk storage, CD-ROM, optical storage, etc.) including computer usable program code.
- the computer program 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.
- the apparatus implements the functions specified in one or more blocks of a flow or a flow and/or block diagram of the flowchart.
- These computer program instructions can also be loaded onto a computer or other programmable data processing device such that a series of operational steps are performed on a computer or other programmable device to produce computer-implemented processing for execution on a computer or other programmable device.
- the instructions provide steps for implementing the functions specified in one or more of the flow or in a block or blocks of a flow diagram.
Abstract
Description
Claims (40)
- 一种数据反馈资源的确定方法,其特征在于,包括:第一终端接收第二终端发送的第一数据;所述第一终端确定所述第一数据的反馈资源;其中,所述第一数据的反馈资源是反馈资源池中的一个反馈资源;所述第一终端在所述反馈资源上向所述第二终端发送所述第一数据的反馈信息,所述反馈信息用于指示所述第一数据的接收状态。
- 如权利要求1所述的方法,其特征在于,所述第一终端确定所述第一数据的反馈资源包括:所述第一终端确定所述第一数据的反馈资源的时频信息和/或码域信息,所述时频信息包括频域资源起始位置信息,频域资源的长度和时域资源指示信息,所述码域信息包括发送所述反馈信息所使用的码字。
- 如权利要求2所述的方法,其特征在于,所述第一终端确定所述第一数据的反馈资源,包括:所述第一终端获取所述反馈资源池的配置信息;所述第一终端根据所述反馈资源池的配置信息确定所述第一数据的反馈资源。
- 如权利要求3所述的方法,其特征在于,所述第一终端获取所述反馈资源池的的配置信息,包括:所述第一终端从网络侧获取所述反馈资源池的配置信息;或者,所述第一终端通过预配置信息获取所述反馈资源池的配置信息。
- 如权利要求3或4所述的方法,其特征在于,所述第一终端获取所述反馈资源池的配置信息,包括:所述第一终端获取所述反馈资源池的频域资源起始位置信息,频域资源长度信息,时域的子帧偏移量信息,子帧位图信息中的至少一种信息。
- 如权利要求1-5任一项所述的方法,其特征在于,包括:所述反馈资源池的频域资源数由所述第一数据所在的数据资源池的子带数确定。
- 如权利要求2-6任一项所述的方法,其特征在于,所述第一终端确定所述第一数据的反馈资源,包括:所述第一终端获取所述第一数据的时频资源信息;所述第一终端根据所述第一数据的时频资源信息确定所述第一数据的反馈资源的时频信息。
- 如权利要求7所述的方法,其特征在于,所述第一终端获取的所述第一数据的时频资源信息,包括:承载所述第一数据的SCI的时频资源信息和/或承载所述第一数据的业务数据的时频资源信息。
- 如权利要求2至6所述的任一方法,其特征在于,所述第一终端确定所述第一数据的反馈资源,包括:所述第一终端确定所述第一数据的反馈资源的码域信息,包括:所述第一终端获取所述第一数据的时频资源信息,所述第一终端的ID信息,所述第二终端的ID信息中的至少一种信息,所述第一终端根据所述获取的至少一种信息确定所述第一数据的反馈资源的码域信息。
- 如权利要求1-9任一项所述的方法,其特征在于,所述第一终端在所述反馈资源上向所述第二终端发送所述第一数据的反馈信息,包括:所述第一终端获取第三终端发送第二数据的时域信息;如果所述第一终端确定所述第一数据的反馈资源的时域信息和所述第三终端发送所述第二数据的时域信息相同,所述第一终端延迟k个子帧发送所述第一数据的反馈信息,其中k是大于0的整数。
- 一种数据反馈资源的确定方法,其特征在于,包括:第二终端向第一终端发送第一数据;所述第二终端确定所述第一数据的反馈资源;其中,所述第一数据的反馈资源是反馈资源池中的一个反馈资源;所述第二终端在所述反馈资源上接收所述第一终端发送所述第一数据的反馈信息,所述反馈信息用于指示所述第一数据的接收状态。
- 如权利要求11所述的方法,其特征在于,所述第一终端确定所述第一数据的反馈资源包括:所述第一终端确定所述第一数据的反馈资源的时频信息和/或码域信息,所述时频信息包括频域资源起始位置信息,频域资源的长度和时域资源指示信息,所述码域信息包括发送所述反馈信息所使用的码字。
- 如权利要求12所述的方法,其特征在于,所述第二终端确定所述第一数据的反馈资源,包括:所述第二终端获取所述反馈资源池的配置信息;所述第二终端根据所述反馈资源池的配置信息确定所述第一数据的反馈资源。
- 如权利要求13所述的方法,其特征在于,所述第二终端获取所述反馈资源池的配置信息,包括:所述第二终端从网络侧获取所述反馈资源池的配置信息;或者,所述第二终端通过预配置信息获取所述反馈资源池的配置信息。
- 如权利要求13或14所述的方法,其特征在于,所述第二终端获取所述反馈资源池的配置信息,包括:所述第二终端获取所述反馈资源池的频域资源起始位置信息,频域资源长度信息,时域的子帧偏移量信息,子帧位图信息中的至少一种信息。
- 如权利要求11-15任一项所述的方法,其特征在于,包括:所述反馈资源池的频域资源数由所述第一数据所在的数据资源池的子带数确定。
- 如权利要求12-16任一项所述的方法,其特征在于,所述第二终端确定所述第一数据的反馈资源,包括:所述第二终端获取所述第一数据的时频资源信息;所述第二终端根据所述第一数据的时频资源信息确定所述第一数据的反馈资源的时频信息。
- 如权利要求17所述的方法,其特征在于,所述第二终端获取的所述第一数据的时频资源信息,包括:承载所述第一数据的SCI的时频资源信息和/或承载所述第一数据的业务数据的时频资源信息。
- 如权利要求12-16任一项所述的方法,其特征在于,所述第二终端确定所述第一 数据的反馈资源,包括:所述第二终端确定所述第一数据的反馈资源的码域信息,包括:所述第二终端获取所述第一数据的时频资源信息,所述第一终端的ID信息,所述第二终端的ID信息中的至少一种信息,所述第二终端根据所述获取的至少一种信息确定所述第一数据的反馈资源的码域信息。
- 如权利要求11-19任一项所述的方法,其特征在于,所述第二终端在所述反馈资源上接收所述第一终端发送所述第一数据的反馈信息,包括:所述第二终端获取第三终端发送第二数据的时域信息,如果所述第二终端确定所述第一数据的反馈资源的时域信息和所述第三终端发送所述第二数据的时域信息相同,所述第二终端延迟k个子帧接收所述第一数据的反馈信息,其中k是大于0的整数。
- 一种数据反馈资源的确定设备,其特征在于,包括:接收单元,用于接收对端设备发送的第一数据;处理单元,用于确定所述第一数据的反馈资源;其中,所述第一数据的反馈资源是反馈资源池中的一个反馈资源;发送单元,用于在所述反馈资源上向所述对端设备发送所述第一数据的反馈信息,所述反馈信息用于指示所述第一数据的接收状态。
- 如权利要求21所述的设备,其特征在于,所述处理单元具体用于:确定所述第一终端确定所述第一数据的反馈资源的时频信息和/或码域信息,所述时频信息包括频域资源起始位置信息,频域资源的长度和时域资源指示信息,所述码域信息包括发送所述反馈信息所使用的码字。
- 如权利要求22所述的设备,其特征在于,所述处理单元在确定所述第一数据的反馈资源时,具体用于:获取所述反馈资源池的配置信息;根据所述反馈资源池的配置信息确定所述第一数据的反馈资源。
- 如权利要求23所述的设备,其特征在于,所述处理单元在获取所述反馈资源池的的配置信息时,具体用于:从网络侧获取所述反馈资源池的配置信息;或者,通过预配置信息获取所述反馈资源池的配置信息。
- 如权利要求23或24所述的设备,其特征在于,所述处理单元在获取所述反馈资源池的配置信息时,具体用于:获取所述反馈资源池的频域资源起始位置信息,频域资源长度信息,时域的子帧偏移量信息,子帧位图信息中的至少一种信息。
- 如权利要求21-25任一项所述的设备,其特征在于,包括:所述反馈资源池的频域资源数由所述第一数据所在的数据资源池的子带数确定。
- 如权利要求22-26任一项所述的设备,其特征在于,所述处理单元在确定所述第一数据的反馈资源时,具体用于:获取所述第一数据的时频资源信息;根据所述第一数据的时频资源信息确定所述第一数据的反馈资源的时频信息。
- 如权利要求27所述的设备,其特征在于,所述处理单元获取的所述第一数据的时频资源信息,包括:承载所述第一数据的SCI的时频资源信息和/或承载所述第一数据的业务数据的时频资源信息。
- 如权利要求22至26所述的任一设备,其特征在于,所述处理单元在确定所述第一数据的反馈资源时,具体用于:确定所述第一数据的反馈资源的码域信息,包括:获取所述第一数据的时频资源信息,所述设备的ID信息,所述对端设备的ID信息中的至少一种信息,根据所述获取的至少一种信息确定所述第一数据的反馈资源的码域信息。
- 如权利要求21-29任一项所述的设备,其特征在于,所述发送单元在所述反馈资源上向所述对端设备发送所述第一数据的反馈信息时,具体用于:获取另一终端发送第二数据的时域信息;如果所述处理单元确定所述第一数据的反馈资源的时域信息和所述另一终端发送所述第二数据的时域信息相同,延迟k个子帧发送所述第一数据的反馈信息,其中k是大于0的整数。
- 一种数据反馈资源的确定设备,其特征在于,包括:发送单元,用于向对端设备发送第一数据;处理单元,用于确定所述第一数据的反馈资源;其中,所述第一数据的反馈资源是反馈资源池中的一个反馈资源;接收单元,用于在所述反馈资源上接收所述对端设备发送所述第一数据的反馈信息,所述反馈信息用于指示所述第一数据的接收状态。
- 如权利要求31所述的设备,其特征在于,所述处理单元具体用于:确定所述第一数据的反馈资源的时频信息和/或码域信息,所述时频信息包括频域资源起始位置信息,频域资源的长度和时域资源指示信息,所述码域信息包括发送所述反馈信息所使用的码字。
- 如权利要求32所述的设备,其特征在于,所述处理单元在确定所述第一数据的反馈资源时,具体用于:获取所述反馈资源池的配置信息;根据所述反馈资源池的配置信息确定所述第一数据的反馈资源。
- 如权利要求33所述的设备,其特征在于,所述处理单元在获取所述反馈资源池的配置信息时,具体用于:从网络侧获取所述反馈资源池的配置信息;或者,通过预配置信息获取所述反馈资源池的配置信息。
- 如权利要求33或34所述的设备,其特征在于,所述处理单元在获取所述反馈资源池的配置信息时,具体用于:获取所述反馈资源池的频域资源起始位置信息,频域资源长度信息,时域的子帧偏移量信息,子帧位图信息中的至少一种信息。
- 如权利要求31-35任一项所述的设备,其特征在于,包括:所述反馈资源池的频域资源数由所述第一数据所在的数据资源池的子带数确定。
- 如权利要求32-36任一项所述的设备,其特征在于,所述处理单元在确定所述第一数据的反馈资源时,具体用于:获取所述第一数据的时频资源信息;根据所述第一数据的时频资源信息确定所述第一数据的反馈资源的时频信息。
- 如权利要求37所述的设备,其特征在于,所述处理单元获取的所述第一数据的时频资源信息,包括:承载所述第一数据的SCI的时频资源信息和/或承载所述第一数据的业务数据的时频资源信息。
- 如权利要求32-36任一项所述的设备,其特征在于,所述处理单元在确定所述第一数据的反馈资源时,具体用于:确定所述第一数据的反馈资源的码域信息,包括:获取所述第一数据的时频资源信息,所述对端设备的ID信息,所述设备的ID信息中的至少一种信息,根据所述获取的至少一种信息确定所述第一数据的反馈资源的码域信息。
- 如权利要求31-39任一项所述的设备,其特征在于,所述接收单元在所述反馈资源上接收所述对端设备发送所述第一数据的反馈信息时,具体用于:获取另一终端发送第二数据的时域信息,如果所述处理单元确定所述第一数据的反馈资源的时域信息和所述另一终端发送所述第二数据的时域信息相同,延迟k个子帧接收所述第一数据的反馈信息,其中k是大于0的整数。
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US11330561B2 (en) | 2022-05-10 |
CN108631968B (zh) | 2021-02-09 |
BR112019019560A2 (pt) | 2020-04-22 |
EP3588829A4 (en) | 2020-03-04 |
US11937216B2 (en) | 2024-03-19 |
CN112929143A (zh) | 2021-06-08 |
CN112671523A (zh) | 2021-04-16 |
CN108631968A (zh) | 2018-10-09 |
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US20200015198A1 (en) | 2020-01-09 |
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