CN115988662B - Data feedback method and device, electronic equipment and storage medium - Google Patents
Data feedback method and device, electronic equipment and storage medium Download PDFInfo
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Abstract
The embodiment of the application provides a data feedback method, a data feedback device, electronic equipment and a storage medium. In this embodiment, when it is determined that the configured response type of the specified user terminal is a fast response type, the transmission direction of the OFDM symbol of the downlink slot D-slot is temporarily modified to an uplink transmission direction, so that the user terminal feeds back a response data packet according to the OFDM symbol of which the modified transmission direction is the uplink transmission direction, thereby implementing fast response of the user terminal and meeting the requirement of low delay in the service scenario of the URLLC class; further, only when the configured response type of the appointed user terminal is determined to be the quick response type, the transmission direction of the OFDM symbol of the downlink time slot D-slot is temporarily modified to be the uplink transmission direction, so that the quick response of the user terminal is realized, the original time slot configuration scheme is not changed, and the modification is small.
Description
Technical Field
The present disclosure relates to the field of communications technologies, and in particular, to a data feedback method, a device, an electronic device, and a storage medium.
Background
At present, the ratio of a typical downlink time slot to an uplink time slot in a 5G network is 8:2, i.e. 80% of the time slots are used for the base station to transmit data to the user terminal, and 20% of the time slots are used for the user terminal to transmit data to the base station. Fig. 1 shows a typical timeslot matching chart, as shown in fig. 1, when a base station issues data in timeslot 0, it is first required to wait for timeslot 7 to obtain response information, and if uplink congestion is caused, it is even required to wait for timeslot 8 or timeslot 9 to obtain response information, which is not applicable to low-latency, low-latency and high-reliability traffic scenarios (such as emergency calls, etc.) of the URLLC class, where a user terminal needs to respond quickly.
Disclosure of Invention
In view of this, the embodiments of the present application provide a data feedback method, apparatus, electronic device, and storage medium, so as to implement quick response of a user terminal by temporarily modifying a transmission direction of an OFDM symbol of a downlink slot D-slot into an uplink transmission direction, thereby meeting requirements of low latency in a service scenario of a URLLC class.
According to a first aspect of embodiments of the present application, there is provided a data feedback method, where the method is applied to a base station, the method includes:
when transmitting a data packet to a designated user terminal through a current downlink time slot D-slot, the response type of the designated user terminal is configured to be a quick response type, if the current downlink time slot is found to meet a first condition, wherein the first condition is that the number of remaining OFDM symbols except for the number of target OFDM symbols Symbol occupied by the data packet in the current downlink time slot is greater than or equal to the number of OFDM symbols required by the designated user terminal to respond to the data packet, the transmission direction of an OFDM Symbol required by the designated user terminal to respond to the data packet in the remaining OFDM symbols is changed from the current downlink transmission direction to an uplink transmission direction, and the position of the uplink OFDM Symbol is indicated to the designated user terminal, so that the designated user terminal uses the uplink OFDM Symbol of the current downlink time slot to feed back the response data packet;
if the current downlink time slot does not meet the first condition and the next time slot of the current downlink time slot is a downlink time slot, modifying the transmission direction of an OFDM symbol required by the appointed user terminal for responding to the data packet in the OFDM symbol of the next downlink time slot of the current downlink time slot from the current downlink transmission direction to an uplink transmission direction, and indicating the position of the uplink OFDM symbol to the appointed user terminal so that the appointed user terminal feeds back the response data packet by using the uplink OFDM symbol of the next downlink time slot.
According to a second aspect of embodiments of the present application, there is provided a data feedback method, the method being applied to a user terminal, the method including:
when a data packet sent by a base station is received, if the current time slot for transmitting the data packet is a downlink time slot D-slot, identifying whether an Orthogonal Frequency Division Multiplexing (OFDM) Symbol with the transmission direction being the uplink transmission direction exists in the current time slot;
if the OFDM symbol with the transmission direction being the uplink transmission direction exists in the current time slot, the response data packet is fed back by using the OFDM symbol with the transmission direction being the uplink transmission direction.
According to a third aspect of embodiments of the present application, there is provided a data feedback apparatus, the apparatus being applied to a base station, the apparatus comprising:
a first transmission direction modifying module, configured to, when transmitting a data packet to a specified user terminal through a current downlink slot D-slot, modify a transmission direction of an OFDM Symbol required for the specified user terminal to respond to the data packet in a remaining OFDM Symbol from a current downlink transmission direction to an uplink transmission direction, and indicate an uplink OFDM Symbol position to the specified user terminal if the current downlink slot is found to satisfy a first condition, where the first condition is that a number of remaining OFDM symbols in the current downlink slot, excluding a number of target OFDM symbols Symbol symbols occupied by the data packet, is greater than or equal to a number of OFDM symbols required for the specified user terminal to respond to the data packet, so that the specified user terminal uses an uplink OFDM Symbol feedback response data packet of the current downlink slot;
and the second transmission direction modification module is used for modifying the transmission direction of an OFDM symbol which is used for the appointed user terminal to respond to the data packet in the OFDM symbol of the next downlink time slot of the current downlink time slot from the current downlink transmission direction to the uplink transmission direction if the current downlink time slot does not meet the first condition and the next time slot of the current downlink time slot is the downlink time slot, and indicating the position of the uplink OFDM symbol to the appointed user terminal so that the appointed user terminal feeds back the response data packet by using the uplink OFDM symbol of the next downlink time slot.
According to a fourth aspect of embodiments of the present application, there is provided a data feedback apparatus, the apparatus being applied to a user terminal, the apparatus comprising:
the identification module is used for identifying whether an Orthogonal Frequency Division Multiplexing (OFDM) Symbol with the transmission direction being the uplink transmission direction exists in a current time slot for transmitting a data packet sent by a base station when the data packet is received and the current time slot is a downlink time slot D-slot;
and the response module is used for feeding back a response data packet by using the OFDM symbol with the transmission direction being the uplink transmission direction if the OFDM symbol with the transmission direction being the uplink transmission direction exists in the current time slot.
According to a fifth aspect of embodiments of the present application, there is provided an electronic device, including: a processor and a memory;
wherein the memory is configured to store machine-executable instructions;
the processor is configured to read and execute the machine executable instructions stored in the memory, so as to implement the method according to the first aspect.
According to a sixth aspect of embodiments of the present application, there is provided a machine readable storage medium having stored thereon a program which, when executed by a processor, implements a method as described in the first aspect.
The technical scheme provided by the embodiment of the application can comprise the following beneficial effects:
in the embodiment of the application, when the configured response type of the appointed user terminal is determined to be the quick response type, the transmission direction of the OFDM symbol of the downlink slot D-slot is temporarily modified to be the uplink transmission direction, so that the user terminal feeds back the response data packet according to the OFDM symbol of which the modified transmission direction is the uplink transmission direction, the quick response of the user terminal is realized, and the requirement of low time delay of the service scene of the URLLC class is met;
further, only when the configured response type of the appointed user terminal is determined to be the quick response type, the transmission direction of the OFDM symbol of the downlink time slot D-slot is temporarily modified to be the uplink transmission direction, so that the quick response of the user terminal is realized, the original time slot configuration scheme is not changed, and the modification is small.
Drawings
Fig. 1 is a typical timeslot proportioning example diagram provided in an embodiment of the present application.
Fig. 2 is a flowchart of a data feedback method according to an embodiment of the present application.
Fig. 3 is an exemplary diagram of a transmission direction of an OFDM symbol of a modified downlink slot according to an embodiment of the present application.
Fig. 4 is a flowchart of another data feedback method provided in an embodiment of the present application.
Fig. 5 is a block diagram of a data feedback device according to an embodiment of the present application.
Fig. 6 is a block diagram of another data feedback device provided in an embodiment of the present application.
Fig. 7 is a block diagram of a data feedback system provided in an embodiment of the present application.
Fig. 8 is a block diagram of an electronic device according to an embodiment of the present application.
Detailed Description
Reference will now be made in detail to exemplary embodiments, examples of which are illustrated in the accompanying drawings. When the following description refers to the accompanying drawings, the same numbers in different drawings refer to the same or similar elements, unless otherwise indicated. The implementations described in the following exemplary examples are not representative of all implementations consistent with the present application. Rather, they are merely examples of apparatus and methods consistent with some aspects of the present application as detailed in the accompanying claims.
The terminology used in the present application is for the purpose of describing particular embodiments only and is not intended to be limiting of the present application. As used in this application and the appended claims, the singular forms "a," "an," and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise. It should also be understood that the term "and/or" as used herein refers to and encompasses any or all possible combinations of one or more of the associated listed items.
It should be understood that although the terms first, second, third, etc. may be used herein to describe various information, these information should not be limited by these terms. These terms are only used to distinguish one type of information from another. For example, a first message may also be referred to as a second message, and similarly, a second message may also be referred to as a first message, without departing from the scope of the present application. The word "if" as used herein may be interpreted as "at … …" or "at … …" or "responsive to a determination", depending on the context.
Next, embodiments of the present specification will be described in detail.
Referring to fig. 2, fig. 2 is a flowchart of a data feedback method according to an embodiment of the present application. The method is applied to a base station.
As shown in fig. 2, the process may include the steps of:
s210: when transmitting a data packet to a designated user terminal through a current downlink slot D-slot, the response type of the designated user terminal is configured to be a quick response type, if the current downlink slot is found to meet a first condition, the transmission direction of an OFDM symbol required by the designated user terminal for responding to the data packet in the remaining OFDM symbols is modified from the current downlink transmission direction to an uplink transmission direction, and the position of the uplink OFDM symbol is indicated to the designated user terminal, so that the designated user terminal feeds back the response data packet by using the uplink OFDM symbol of the current downlink slot.
Illustratively, in the present embodiment, the user terminal may be of various types, such as a numerical control machine of a factory, a device of a hospital, and the like, and the embodiment of the present application is not particularly limited.
In this embodiment, the data packet transmitted by the base station to the specified user terminal corresponds to the type of the user terminal, for example, when the specified user terminal is a numerical control machine of a factory, the data packet may be control data of the numerical control machine.
Illustratively, in this embodiment, before performing this step, configuration needs to be performed between the base station and the user terminal, specifically, the user terminal sends its configuration information to the base station so that the base station stores the configuration information, where the configuration information of the user terminal may include: the response type of the user terminal and the service information.
The response types of the user terminal may include: the fast reaction type and the non-fast reaction type, wherein the fast reaction type may be a response time of less than or equal to 0.1s, and embodiments of the present application are not particularly limited.
The service information may be the number of OFDM symbols required for each service type and for the user terminal to respond to the data packet for each service type, for example, a type a service-4 OFDM symbols; type B traffic-5 OFDM symbols.
In this embodiment, the response type of the specified user terminal may be obtained by querying from the configuration information of each user terminal stored in the base station, that is, by using the identifier (for example, MAC address, IP address, etc.) of the specified user terminal as a key, and querying the recorded configuration information of each user terminal for the response type of the specified user terminal, where the user terminal information at least includes: a user terminal identifier and a response type of the user terminal; and determining whether the response type of the appointed user terminal is a quick response type according to the inquired response type.
As another example, the first condition may be that the number of remaining OFDM symbols in the current downlink slot other than the number of OFDM symbols of the target OFDM Symbol occupied by the data packet is greater than or equal to the number of OFDM symbols required for the specified user terminal to respond to the data packet, and as another example, the number of remaining OFDM symbols in the current downlink slot other than the number of OFDM symbols of the target OFDM Symbol occupied by the data packet is greater than or equal to the sum of the number of OFDM symbols required for the specified user terminal to respond to the data packet and the number of specified intervals (e.g., 2 OFDM symbols), which is not particularly limited in this embodiment.
In this embodiment, the number of OFDM symbols required for the specified user terminal to respond to the data packet may be obtained by querying from configuration information of each user terminal stored in the base station, that is, the type of the data packet is used as a key, and the number of OFDM symbols required for the specified user terminal to respond to the data packet is queried in the queried configuration information of the specified user terminal.
In this embodiment, if the current downlink timeslot is found to meet the first condition, the transmission direction of the OFDM symbol required for the specified user terminal to respond to the data packet in the remaining OFDM symbols is modified from the current downlink transmission direction to the uplink transmission direction, and the uplink OFDM symbol position is indicated to the specified user terminal, so that the specified user terminal feeds back the response data packet by using the uplink OFDM symbol of the current downlink timeslot.
Here, the uplink OFDM symbol position may be transmitted to the designated user terminal together with the data packet, for example, the uplink OFDM symbol position may be encapsulated together with the data packet in a data frame corresponding to the downlink slot, where the uplink OFDM symbol position may be encapsulated in a frame header of the data frame, and embodiments of the present application are not specifically limited.
S220: if the current downlink time slot does not meet the first condition and the next time slot of the current downlink time slot is the downlink time slot, modifying the transmission direction of an OFDM symbol required by the appointed user terminal for responding to the data packet in the OFDM symbol of the next downlink time slot of the current downlink time slot from the current downlink transmission direction to the uplink transmission direction, and indicating the position of the uplink OFDM symbol to the appointed user terminal so that the appointed user terminal feeds back the response data packet by using the uplink OFDM symbol of the next downlink time slot.
In this embodiment, when transmitting a data packet to a specified user terminal through a current downlink slot D-slot, if the current downlink slot is found not to satisfy the first condition, the type of the next slot of the current slot is determined, if the next slot of the current slot is a downlink slot, the transmission direction of an OFDM symbol required for the specified user terminal to respond to the data packet in the OFDM symbol of the next downlink slot of the current downlink slot is modified from the current downlink transmission direction to an uplink transmission direction, and the uplink OFDM symbol position is indicated to the specified user terminal, so that the specified user terminal uses the uplink OFDM symbol feedback response data packet of the next downlink slot.
If the next time slot of the current time slot is the uplink time slot U-slot or the self-contained time slot S-slot, the processing is carried out according to the processing flow of the uplink time slot U-slot and the self-contained time slot S-slot.
Thus, the flow shown in fig. 2 is completed.
As can be seen from the flow shown in fig. 2, in the embodiment of the present application, when it is determined that the configured response type of the specified user terminal is a fast response type, the transmission direction of the OFDM symbol of the downlink slot D-slot is temporarily modified to be the uplink transmission direction, so that the user terminal feeds back the response data packet according to the OFDM symbol with the modified transmission direction being the uplink transmission direction, thereby implementing the fast response of the user terminal, and meeting the requirement of low delay in the service scenario of the URLLC class;
further, only when the configured response type of the appointed user terminal is determined to be the quick response type, the transmission direction of the OFDM symbol of the downlink time slot D-slot is temporarily modified to be the uplink transmission direction, so that the quick response of the user terminal is realized, the original time slot configuration scheme is not changed, and the modification is small.
As an optional implementation manner of the embodiment of the present application, in the step S110, modifying, from a current downlink transmission direction to an uplink transmission direction, a transmission direction of an OFDM symbol required for specifying that the user terminal responds to the data packet in the remaining OFDM symbols includes:
firstly, taking the first M OFDM symbols in the rest OFDM symbols as intervals, wherein M is greater than or equal to 1; the interval is used to designate the user terminal to switch from the data reception state to the data transmission state.
Next, N OFDM symbols after M OFDM symbols are used as OFDM symbols required for designating the user terminal to respond to the data packet.
Illustratively, in the present embodiment, M may be any value greater than or equal to 1, for example, 2, which is not particularly limited in the embodiments of the present application.
In the present embodiment, in order to ensure that a specified user terminal has sufficient time to switch from the data reception state to the data transmission state, the first M OFDM symbols among the remaining OFDM symbols are taken as intervals.
In this embodiment, N OFDM symbols after M OFDM symbols are used as OFDM symbols required for a specified user terminal to respond to a data packet, specifically, N consecutive OFDM symbols after M OFDM symbols and adjacent to M symbols may be used as OFDM symbols required for a specified user terminal to respond to a data packet, or N consecutive OFDM symbols after M OFDM symbols and not adjacent to M symbols may be used as OFDM symbols required for a specified user terminal to respond to a data packet, which is not particularly limited in this embodiment.
Fig. 3 is an exemplary diagram of a transmission direction of a symbol of a downlink slot, where, as shown in fig. 3, one of the downlink slots D-slot includes 14 OFDM symbols, and when a data packet transmitted to a designated user terminal needs 8 OFDM symbols and the number of OFDM symbols required for the designated user terminal to respond to the data packet is 4 OFDM symbols, OFDM symbols No. 0 to No. 7 are used for transmitting the data packet transmitted from the base station to the user terminal, OFDM symbols No. 8 to No. 9 are used as intervals, and the transmission direction of OFDM symbols No. 10 to No. 13 is modified from the downlink transmission direction to the uplink transmission direction as OFDM symbols required for the designated user terminal to respond to the data packet.
As an optional implementation manner of the embodiment of the present application, in the step S120, a transmission direction of an OFDM symbol used to specify an OFDM symbol required for a user terminal to respond to a data packet in an OFDM symbol of a next downlink slot of a current downlink slot is modified from a current downlink transmission direction to an uplink transmission direction, including:
firstly, taking the first M OFDM symbols in the OFDM symbols of the next downlink time slot as intervals, wherein M is greater than or equal to 1; the interval is used to designate the user terminal to switch from the data reception state to the data transmission state;
next, N OFDM symbols after M OFDM symbols are used as OFDM symbols required for designating the user terminal to respond to the data packet.
Illustratively, in the present embodiment, M may be any value greater than or equal to 1, for example, 2, which is not particularly limited in the embodiments of the present application.
In the present embodiment, in order to ensure that a specified user terminal has sufficient time to switch from the data reception state to the data transmission state, the first M OFDM symbols among the remaining OFDM symbols are taken as intervals.
In this embodiment, N OFDM symbols after M OFDM symbols are used as OFDM symbols required for a specified user terminal to respond to a data packet, specifically, N consecutive OFDM symbols after M OFDM symbols and adjacent to M symbols may be used as OFDM symbols required for a specified user terminal to respond to a data packet, or N consecutive OFDM symbols after M OFDM symbols and not adjacent to M symbols may be used as OFDM symbols required for a specified user terminal to respond to a data packet, which is not particularly limited in this embodiment.
In the embodiment of the present application, when the two cases of modifying the transmission direction of the OFDM symbol are described above, a response identifier is set for the current slot, and when the user terminal is specified to receive the data packet, based on the set response identifier, the response data packet is fed back by using the uplink OFDM symbol of the current downlink slot or the uplink OFDM symbol of the next downlink slot.
Illustratively, in this embodiment, the response identifier is used to indicate that the current timeslot requires the user terminal to respond quickly, where the response identifier may be letters, characters, numbers, or a combination of two or three of the foregoing, and the embodiment of the present application is not specifically limited.
When the current time slot is the current downlink time slot, the user terminal is appointed to feed back a response data packet by using an uplink OFDM symbol of the current downlink time slot based on the set response identifier; when the current time slot is the next downlink time slot of the current downlink time slot, designating the user terminal to feed back the response data packet by using the uplink OFDM symbol of the next downlink time slot based on the set response identification when the user terminal receives the data packet.
In this embodiment, the response identifier may also be encapsulated in a frame header of a data frame and sent to the designated user terminal, which is not particularly limited in this embodiment.
In this embodiment, when the specified user terminal receives the data packet and searches the response identifier from the frame header corresponding to the data packet, the response data packet is fed back by using the uplink OFDM symbol of the current downlink slot or the uplink OFDM symbol of the next downlink OFDM slot.
When the designated ue does not query the response data, it is unnecessary to use the uplink OFDM symbol of the current downlink slot or the uplink OFDM symbol of the next downlink slot to feed back the response data packet.
Referring to fig. 4, fig. 4 is a flowchart of a data feedback method according to an embodiment of the present application. The method is applied to the user terminal.
As shown in fig. 4, the process may include the steps of:
s410: when receiving a data packet sent by a base station, if the current time slot for transmitting the data packet is a downlink time slot D-slot, identifying whether an OFDM symbol with the transmission direction being the uplink transmission direction exists in the current time slot.
S420: if the OFDM symbol with the transmission direction being the uplink transmission direction exists in the current time slot, the response data packet is fed back by using the OFDM symbol with the transmission direction being the uplink transmission direction.
The detailed description is referred to the above description of the embodiments, and will not be repeated here.
Thus, the description of the flow of the method shown in fig. 4 is completed.
Corresponding to the embodiments of the foregoing method, embodiments of the present application further provide an apparatus, a system, and a terminal to which the apparatus, the system, and the terminal are applied.
As shown in fig. 5, fig. 5 is a block diagram of a data feedback device according to an embodiment of the present application, where the data feedback device is applied to a base station, and the data feedback device includes:
the first transmission direction modifying module is configured to modify a transmission direction of an OFDM Symbol required for the specified user terminal to respond to the data packet from a current downlink transmission direction to an uplink transmission direction when the specified user terminal transmits the data packet through the current downlink slot D-slot, and indicate an uplink OFDM Symbol position to the specified user terminal if the current downlink slot is found to satisfy a first condition, wherein the first condition is that the number of remaining OFDM symbols in the current downlink slot except for a target OFDM Symbol occupied by the data packet is greater than or equal to the number of OFDM symbols required by the specified user terminal to respond to the data packet, so that the specified user terminal uses the uplink OFDM Symbol of the current downlink slot to feed back the response data packet;
and the second transmission direction modification module is used for modifying the transmission direction of the OFDM symbol required by the appointed user terminal for responding to the data packet in the OFDM symbol of the next downlink time slot of the current downlink time slot from the current downlink transmission direction to the uplink transmission direction if the current downlink time slot does not meet the first condition and the next time slot of the current downlink time slot is the downlink time slot, and indicating the position of the uplink OFDM symbol to the appointed user terminal so that the appointed user terminal feeds back the response data packet by using the uplink OFDM symbol of the next downlink time slot.
As an optional implementation manner of the embodiment of the present application, the first transmission direction modification module is specifically configured to:
taking the first M OFDM symbols in the rest OFDM symbols as intervals, wherein M is greater than or equal to 1; the interval is used to designate the user terminal to switch from the data reception state to the data transmission state;
and taking N OFDM symbols after the M OFDM symbols as OFDM symbols required by the designated user terminal for responding to the data packet.
As an optional implementation manner of the embodiment of the present application, the second transmission direction modification module is specifically configured to:
taking the first M OFDM symbols in the OFDM symbols of the next downlink time slot as intervals, wherein M is greater than or equal to 1; the interval is used to designate the user terminal to switch from the data reception state to the data transmission state;
and taking N OFDM symbols after the M OFDM symbols as OFDM symbols required by the designated user terminal for responding to the data packet.
As an optional implementation manner of the embodiment of the present application, when modifying, from a current downlink transmission direction to an uplink transmission direction, a transmission direction of an OFDM symbol required for a user terminal to respond to a data packet in remaining OFDM symbols, the data feedback device further includes:
the first setting module is used for setting a response identifier for the current downlink time slot, wherein the response identifier is used for indicating that the specified user terminal feeds back a response data packet by using an uplink OFDM symbol of the current downlink time slot based on the set response identifier when receiving the data packet;
when the transmission direction of the OFDM symbol, which is used for designating the user terminal to respond to the data packet, in the OFDM symbol of the next downlink time slot of the current downlink time slot is modified from the current downlink transmission direction to the uplink transmission direction, the data feedback device further comprises:
the second setting module is configured to set a response identifier for a next downlink time slot of the current downlink time slot, where the response identifier is used to instruct the specified user terminal to feedback the response data packet by using an uplink OFDM symbol of the next downlink time slot based on the set response identifier when the specified user terminal receives the data packet.
This completes the description of the block diagram shown in fig. 5.
As shown in fig. 6, fig. 6 is a block diagram of a data feedback device according to an embodiment of the present application, where the data feedback device is applied to a user terminal, and the data feedback device includes:
the identification module is used for identifying whether an OFDM symbol with the transmission direction being the uplink transmission direction exists in the current time slot of the transmission data packet when the data packet sent by the base station is received and if the current time slot of the transmission data packet is the downlink time slot D-slot;
and the response module is used for feeding back a response data packet by using the OFDM symbol with the transmission direction being the uplink transmission direction if the OFDM symbol with the transmission direction being the uplink transmission direction exists in the current time slot.
This completes the description of the block diagram shown in fig. 6.
The implementation process of the functions and roles of each unit in the above device is specifically shown in the implementation process of the corresponding steps in the above method, and will not be described herein again.
As shown in fig. 7, fig. 7 is a block diagram of a data feedback system provided in an embodiment of the present application, where the data feedback device includes:
and the base station is used for executing the steps of the data feedback method when the execution main body is the base station.
And the user terminal is used for executing the steps of the data feedback method when the execution subject is the user terminal.
This completes the description of the block diagram shown in fig. 7.
The detailed description is referred to the above description of the embodiments, and will not be repeated here.
For the device embodiments, reference is made to the description of the method embodiments for the relevant points, since they essentially correspond to the method embodiments. The apparatus embodiments described above are merely illustrative, wherein the modules illustrated as separate components may or may not be physically separate, and the components shown as modules may or may not be physical, i.e., may be located in one place, or may be distributed over a plurality of network modules. Some or all of the modules may be selected according to actual needs to achieve the purposes of the present description. Those of ordinary skill in the art will understand and implement the present invention without undue burden.
Correspondingly, the embodiment of the application also provides a hardware structure diagram of the device shown in fig. 5 or the device shown in fig. 6, and in particular, as shown in fig. 8, the electronic device may be a device for implementing the method. As shown in fig. 8, the hardware structure includes: a processor and a memory.
Wherein the memory is configured to store machine-executable instructions;
the processor is configured to read and execute the machine executable instructions stored in the memory, so as to implement the corresponding data feedback method embodiment as shown above.
The memory may be any electronic, magnetic, optical, or other physical storage device that may contain or store information, such as executable instructions, data, or the like, for one embodiment. For example, the memory may be: volatile memory, nonvolatile memory, or similar storage medium. In particular, the memory may be RAM (Radom Access Memory, random access memory), flash memory, a storage drive (e.g., hard drive), a solid state disk, any type of storage disk (e.g., optical disk, DVD, etc.), or a similar storage medium, or a combination thereof.
Thus, the description of the electronic device shown in fig. 8 is completed.
The embodiment of the application further provides a machine-readable storage medium, on which a program is stored, which when executed by a processor, implements a data feedback method according to any of the preceding embodiments.
Embodiments of the present application may take the form of a computer program product embodied on one or more storage media (including, but not limited to, disk storage, CD-ROM, optical storage, etc.) having program code embodied therein. Machine-readable storage media include both permanent and non-permanent, removable and non-removable media, and information storage may be implemented by any method or technology. The information may be computer readable instructions, data structures, modules of a program, or other data. Examples of machine-readable storage media include, but are not limited to: phase change memory (PRAM), static Random Access Memory (SRAM), dynamic Random Access Memory (DRAM), other types of Random Access Memory (RAM), read Only Memory (ROM), electrically Erasable Programmable Read Only Memory (EEPROM), flash memory or other memory technology, compact disc read only memory (CD-ROM), digital Versatile Disks (DVD) or other optical storage, magnetic cassettes, magnetic tape magnetic disk storage or other magnetic storage devices, or any other non-transmission medium, may be used to store information that may be accessed by the computing device.
The foregoing describes specific embodiments of the present disclosure. Other embodiments are within the scope of the following claims. In some cases, the actions or steps recited in the claims can be performed in a different order than in the embodiments and still achieve desirable results. In addition, the processes depicted in the accompanying figures do not necessarily require the particular order shown, or sequential order, to achieve desirable results. In some embodiments, multitasking and parallel processing are also possible or may be advantageous.
Other embodiments of the present description will be apparent to those skilled in the art from consideration of the specification and practice of the invention disclosed herein. This specification is intended to cover any variations, uses, or adaptations of the specification following, in general, the principles of the specification and including such departures from the present disclosure as come within known or customary practice within the art to which the specification pertains. It is intended that the specification and examples be considered as exemplary only, with a true scope and spirit of the specification being indicated by the following claims.
It is to be understood that the present description is not limited to the precise arrangements and instrumentalities shown in the drawings, which have been described above, and that various modifications and changes may be made without departing from the scope thereof. The scope of the present description is limited only by the appended claims.
The foregoing description of the preferred embodiments is provided for the purpose of illustration only, and is not intended to limit the scope of the disclosure, since any modifications, equivalents, improvements, etc. that fall within the spirit and principles of the disclosure are intended to be included within the scope of the disclosure.
Claims (10)
1. A data feedback method, wherein the method is applied to a base station, the method comprising:
when transmitting a data packet to a designated user terminal through a current downlink time slot D-slot, the response type of the designated user terminal is configured to be a quick response type, if the current downlink time slot is found to meet a first condition, wherein the first condition is that the number of remaining OFDM symbols except for the number of target OFDM symbols Symbol occupied by the data packet in the current downlink time slot is greater than or equal to the number of OFDM symbols required by the designated user terminal to respond to the data packet, the transmission direction of an OFDM Symbol required by the designated user terminal to respond to the data packet in the remaining OFDM symbols is changed from the current downlink transmission direction to an uplink transmission direction, and the position of the uplink OFDM Symbol is indicated to the designated user terminal, so that the designated user terminal uses the uplink OFDM Symbol of the current downlink time slot to feed back the response data packet;
if the current downlink time slot does not meet the first condition and the next time slot of the current downlink time slot is a downlink time slot, modifying the transmission direction of an OFDM symbol required by the appointed user terminal for responding to the data packet in the OFDM symbol of the next downlink time slot of the current downlink time slot from the current downlink transmission direction to an uplink transmission direction, and indicating the position of the uplink OFDM symbol to the appointed user terminal so that the appointed user terminal feeds back the response data packet by using the uplink OFDM symbol of the next downlink time slot.
2. The method according to claim 1, wherein modifying the transmission direction of the OFDM symbol required for the specified user terminal to respond to the data packet from the current downlink transmission direction to the uplink transmission direction in the remaining OFDM symbols comprises:
taking the first M OFDM symbols in the rest OFDM symbols as intervals, wherein M is greater than or equal to 1; the interval is used for switching the designated user terminal from a data receiving state to a data transmitting state;
and taking N OFDM symbols after M OFDM symbols as OFDM symbols required by the specified user terminal to respond to the data packet.
3. The method according to claim 1, wherein modifying the transmission direction of the OFDM symbol required for the specified user terminal to respond to the data packet in the OFDM symbol of the next downlink slot of the current downlink slot from the current downlink transmission direction to the uplink transmission direction comprises:
taking the first M OFDM symbols in the OFDM symbols of the next downlink time slot as intervals, wherein M is greater than or equal to 1; the interval is used for switching the designated user terminal from a data receiving state to a data transmitting state;
and taking N OFDM symbols after M OFDM symbols as OFDM symbols required by the specified user terminal to respond to the data packet.
4. The method according to claim 1, wherein when the transmission direction of the OFDM symbol required for the specified user terminal to respond to the data packet among the remaining OFDM symbols is modified from the current downlink transmission direction to the uplink transmission direction, the method further comprises:
setting a response identifier for the current downlink time slot, wherein the response identifier is used for indicating a designated user terminal to feed back a response data packet by using an uplink OFDM symbol of the current downlink time slot based on the set response identifier when receiving the data packet;
when the transmission direction of the OFDM symbol required for the specified user terminal to respond to the data packet in the OFDM symbol of the next downlink slot of the current downlink slot is modified from the current downlink transmission direction to the uplink transmission direction, the method further includes:
setting a response identifier for the next downlink time slot of the current downlink time slot, wherein the response identifier is used for indicating a designated user terminal to feed back a response data packet by using an uplink OFDM symbol of the next downlink time slot based on the set response identifier when receiving the data packet.
5. A data feedback method, wherein the method is applied to a user terminal, the method comprising:
when a data packet sent by a base station is received, if a current time slot for transmitting the data packet is a downlink time slot D-slot, identifying whether an Orthogonal Frequency Division Multiplexing (OFDM) Symbol with a transmission direction being an uplink transmission direction exists in the current time slot, wherein the OFDM Symbol with the transmission direction being the uplink transmission direction is obtained by modifying the transmission direction of an OFDM Symbol required by a user terminal for responding the data packet from the current downlink transmission direction to the uplink transmission direction in the remaining OFDM symbols except for the number of OFDM symbols occupied by the data packet in the current downlink time slot when the base station meets a first condition, and the first condition is that the number of the remaining OFDM symbols except for the number of the OFDM symbols occupied by the data packet in the current downlink time slot is larger than or equal to the number of OFDM symbols required by the user terminal for responding the data packet;
if the OFDM symbol with the transmission direction being the uplink transmission direction exists in the current time slot, feeding back a response data packet by using the OFDM symbol with the transmission direction being the uplink transmission direction;
if the current time slot is identified to have no OFDM symbol with the transmission direction being the uplink transmission direction, if the next time slot of the current time slot is a downlink time slot and the next time slot has an OFDM symbol with the transmission direction being the uplink transmission direction, the response data packet is fed back by using the OFDM symbol with the transmission direction being the uplink transmission direction in the next time slot, wherein the OFDM symbol with the transmission direction being the uplink transmission direction in the next time slot is obtained by modifying the transmission direction of the OFDM symbol required by the user terminal to respond to the data packet from the current downlink transmission direction to the uplink transmission direction when the base station does not meet the first condition in the current time slot and the next time slot of the current time slot is the downlink time slot.
6. A data feedback device, wherein the device is applied to a base station, the device comprising:
a first transmission direction modifying module, configured to, when transmitting a data packet to a specified user terminal through a current downlink slot D-slot, modify a transmission direction of an OFDM Symbol required for the specified user terminal to respond to the data packet in a remaining OFDM Symbol from a current downlink transmission direction to an uplink transmission direction, and indicate an uplink OFDM Symbol position to the specified user terminal if the current downlink slot is found to satisfy a first condition, where the first condition is that a number of remaining OFDM symbols in the current downlink slot, excluding a number of target OFDM symbols Symbol symbols occupied by the data packet, is greater than or equal to a number of OFDM symbols required for the specified user terminal to respond to the data packet, so that the specified user terminal uses an uplink OFDM Symbol feedback response data packet of the current downlink slot;
and the second transmission direction modification module is used for modifying the transmission direction of an OFDM symbol which is used for the appointed user terminal to respond to the data packet in the OFDM symbol of the next downlink time slot of the current downlink time slot from the current downlink transmission direction to the uplink transmission direction if the current downlink time slot does not meet the first condition and the next time slot of the current downlink time slot is the downlink time slot, and indicating the position of the uplink OFDM symbol to the appointed user terminal so that the appointed user terminal feeds back the response data packet by using the uplink OFDM symbol of the next downlink time slot.
7. The apparatus of claim 6, wherein the first transmission direction modification module is specifically configured to:
taking the first M OFDM symbols in the rest OFDM symbols as intervals, wherein M is greater than or equal to 1; the interval is used for switching the designated user terminal from a data receiving state to a data transmitting state;
taking N OFDM symbols after M OFDM symbols as OFDM symbols required by the appointed user terminal to respond to the data packet;
the second transmission direction modification module is specifically configured to:
taking the first M OFDM symbols in the OFDM symbols of the next downlink time slot as intervals, wherein M is greater than or equal to 1; the interval is used for switching the designated user terminal from a data receiving state to a data transmitting state;
taking N OFDM symbols after M OFDM symbols as OFDM symbols required by the appointed user terminal to respond to the data packet;
when the transmission direction of the OFDM symbol required for the specified user terminal to respond to the data packet in the remaining OFDM symbols is modified from the current downlink transmission direction to the uplink transmission direction, the apparatus further includes:
the first setting module is used for setting a response identifier for the current downlink time slot, wherein the response identifier is used for indicating a designated user terminal to feed back a response data packet by using an uplink OFDM symbol of the current downlink time slot based on the set response identifier when receiving the data packet;
when the transmission direction of the OFDM symbol required for the specified user terminal to respond to the data packet in the OFDM symbol of the next downlink slot of the current downlink slot is modified from the current downlink transmission direction to the uplink transmission direction, the apparatus further includes:
and the second setting module is used for setting a response identifier for the next downlink time slot of the current downlink time slot, wherein the response identifier is used for indicating a designated user terminal to feed back a response data packet by using an uplink OFDM symbol of the next downlink time slot based on the set response identifier when the designated user terminal receives the data packet.
8. A data feedback device, wherein the device is applied to a user terminal, the device comprising:
the identifying module is configured to identify, when a data packet sent by a base station is received, if a current time slot in which the data packet is transmitted is a downlink time slot D-slot, whether an Orthogonal Frequency Division Multiplexing (OFDM) Symbol with a transmission direction being an uplink transmission direction exists in the current time slot, where the OFDM Symbol with the transmission direction being the uplink transmission direction is obtained by modifying, from a current downlink transmission direction to an uplink transmission direction, a transmission direction of an OFDM Symbol required for the user terminal to respond to the data packet, from remaining OFDM symbols except for the number of OFDM symbols occupied by the data packet in the current downlink time slot, when the base station satisfies a first condition, where the number of remaining OFDM symbols except for the number of OFDM symbols occupied by the data packet in the current downlink time slot is greater than or equal to a required number of OFDM symbols required for the user terminal to respond to the data packet;
a response module, configured to, if it is identified that the current slot has an OFDM symbol with a transmission direction that is an uplink transmission direction, feed back a response packet by using the OFDM symbol with the transmission direction that is the uplink transmission direction;
if the current time slot is identified to have no OFDM symbol with the transmission direction being the uplink transmission direction, if the next time slot of the current time slot is a downlink time slot and the next time slot has an OFDM symbol with the transmission direction being the uplink transmission direction, the response data packet is fed back by using the OFDM symbol with the transmission direction being the uplink transmission direction in the next time slot, wherein the OFDM symbol with the transmission direction being the uplink transmission direction in the next time slot is obtained by modifying the transmission direction of the OFDM symbol required by the user terminal to respond to the data packet from the current downlink transmission direction to the uplink transmission direction when the base station does not meet the first condition in the current time slot and the next time slot of the current time slot is the downlink time slot.
9. An electronic device, characterized in that the electronic device comprises: a processor and a memory;
wherein the memory is configured to store machine-executable instructions;
the processor is configured to read and execute the machine executable instructions stored in the memory to implement the method according to any one of claims 1 to 5.
10. A machine readable storage medium having stored thereon a program which, when executed by a processor, implements the method of any of claims 1-5.
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