CN110365452B - Uplink data transmission method and device - Google Patents
Uplink data transmission method and device Download PDFInfo
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- CN110365452B CN110365452B CN201810322341.9A CN201810322341A CN110365452B CN 110365452 B CN110365452 B CN 110365452B CN 201810322341 A CN201810322341 A CN 201810322341A CN 110365452 B CN110365452 B CN 110365452B
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L1/00—Arrangements for detecting or preventing errors in the information received
- H04L1/12—Arrangements for detecting or preventing errors in the information received by using return channel
- H04L1/16—Arrangements for detecting or preventing errors in the information received by using return channel in which the return channel carries supervisory signals, e.g. repetition request signals
- H04L1/18—Automatic repetition systems, e.g. Van Duuren systems
- H04L1/1812—Hybrid protocols; Hybrid automatic repeat request [HARQ]
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L1/00—Arrangements for detecting or preventing errors in the information received
- H04L1/12—Arrangements for detecting or preventing errors in the information received by using return channel
- H04L1/16—Arrangements for detecting or preventing errors in the information received by using return channel in which the return channel carries supervisory signals, e.g. repetition request signals
- H04L1/18—Automatic repetition systems, e.g. Van Duuren systems
- H04L1/1829—Arrangements specially adapted for the receiver end
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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
- H04L5/0048—Allocation of pilot signals, i.e. of signals known to the receiver
Abstract
The invention provides a method and a device for transmitting uplink data, wherein the method comprises the following steps: a terminal receives first uplink authorization information sent by network equipment, wherein the first uplink authorization information comprises first indication information, the first indication information is used for representing that the network equipment indicates that uplink data sent by the terminal is first data, the first data is data indicated by second indication information in second uplink authorization information, and the second uplink authorization information is previous uplink authorization information received by the terminal; the terminal determines target data from the first data and second data according to a time interval between the receiving time of the first uplink authorization information and the receiving time of the second uplink authorization information, wherein the second data is data which is not transmitted to the network equipment; and the terminal transmits the target data to the network equipment. The invention avoids the limitation of only using the indication information and improves the judgment accuracy.
Description
Technical Field
The present invention relates to the field of communications, and in particular, to a method and an apparatus for transmitting uplink data.
Background
In a Long Term Evolution (LTE) system, a terminal (UE) needs to send data on a Physical Uplink Shared CHannel (PUSCH), and needs to obtain an effective Uplink grant indication allocated by a base station. The uplink grant indication may be dynamically configured on a Physical Downlink Control CHannel (PDCCH) or in a random access response, or configured semi-statically, where the uplink grant indication includes a carrier at which time the terminal can transmit data and an adopted modulation and coding scheme. After obtaining the uplink grant indication allocated by the base station, the terminal may send uplink data on the designated time-frequency domain resource. In order to transmit uplink data, it is necessary to obtain information of a related Hybrid Automatic Repeat reQuest (HARQ).
In the current protocol, for the same HARQ process, the terminal needs to determine whether the uplink grant is used for indicating retransmission or indicating new transmission each time according to the uplink grant information sent by the base station. In the related art, the determination may be performed by using indication information used in the current uplink grant, for example, an NDI value, and locally stored indication information used in the last uplink grant.
However, if the data transmission between the terminal and the base station is abnormal, the indication information cannot accurately reflect actual situations such as whether uplink grant occurs or not and whether transmission is completed or not, and therefore, the judgment is performed only by the indication information, which may cause a judgment error.
Disclosure of Invention
The invention provides a method and a device for transmitting uplink data, which aim to solve the problem that judgment errors can be caused by only depending on indication information for judgment.
According to a first aspect of the present invention, a method for transmitting uplink data is provided, including:
a terminal receives first uplink authorization information sent by network equipment, wherein the first uplink authorization information comprises first indication information, the first indication information is used for representing that the network equipment indicates that uplink data sent by the terminal is first data, the first data is data indicated by second indication information in second uplink authorization information, and the second uplink authorization information is previous uplink authorization information received by the terminal;
the terminal determines target data from the first data and second data according to a time interval between the receiving time of the first uplink authorization information and the receiving time of the second uplink authorization information, wherein the second data is data which is not transmitted to the network equipment;
and the terminal transmits the target data to the network equipment.
Optionally, the determining, by the terminal, target data from the first data and the second data according to a time interval between the receiving time of the first uplink grant information and the receiving time of the second uplink grant information, includes:
if the time interval is greater than the reference time, the terminal determines that the second data is the target data;
and if the time interval is less than or equal to the reference time, the terminal determines that the first data is the target data.
Optionally, the first uplink grant information and the second uplink grant information are uplink grant information of the same hybrid automatic repeat request HARQ process;
the reference time is determined according to the maximum transmission times of the HARQ process and the round trip delay of the HARQ process.
Optionally, the reference time is a product of the maximum transmission number and the round trip delay.
Optionally, the first indication information and the second indication information are new data indication NDI information;
optionally, the method further includes:
the terminal receives third uplink authorization information sent by the network device, where the third uplink authorization information includes third indication information, the third indication information is used to characterize that uplink data sent by the terminal is indicated by the network device as third data, and the third data is data that is not transmitted to the network device;
transmitting the third data to the network device.
According to a second aspect of the present invention, there is provided an uplink data transmission apparatus, including:
a first receiving module, configured to receive first uplink grant information sent by a network device, where the first uplink grant information includes first indication information, and the first indication information is used to characterize that uplink data sent by an indication terminal of the network device is first data, the first data is data indicated by second indication information in second uplink grant information, and the second uplink grant information is previous uplink grant information received by the terminal;
a determining module, configured to determine target data from the first data and second data according to a time interval between a receiving time of the first uplink grant information and a receiving time of the second uplink grant information, where the second data is data that is not transmitted to the network device;
and the first transmission module is used for transmitting the target data to the network equipment.
Optionally, the first determining module is specifically configured to:
if the time interval is greater than the reference time, the terminal determines that the second data is the target data;
and if the time interval is less than or equal to the reference time, the terminal determines that the first data is the target data.
Optionally, the first uplink grant information and the second uplink grant information are uplink grant information of the same hybrid automatic repeat request HARQ process;
the reference time is determined according to the maximum transmission times of the HARQ process and the round trip delay of the HARQ process.
Optionally, the reference time is a product of the maximum transmission number and the round trip delay.
Optionally, the first indication information and the second indication information are new data indication NDI information;
optionally, the apparatus further includes:
a second receiving module, configured to receive third uplink grant information sent by the network device, where the third uplink grant information includes third indication information, and the third indication information is used to characterize that uplink data sent by the terminal is indicated by the network device as third data, and the third data is data that is not transmitted to the network device;
a second transmission module, configured to transmit the third data to the network device.
According to a third aspect of the present invention, there is provided an electronic apparatus comprising: a memory, a processor and a computer program, the computer program being stored in the memory, the processor running the computer program to perform the first aspect and a method of upstream data transmission that may be involved therewith.
According to a fourth aspect of the present invention, there is provided a storage medium storing a computer program which, when executed, implements the first aspect and a method of upstream data transmission that may be involved therewith.
According to the method and the device for transmitting the uplink data, the terminal determines the target data from the first data and the second data according to the time interval between the receiving time of the first uplink authorization information and the receiving time of the second uplink authorization information, and the second data is data which is not transmitted to the network equipment.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
Fig. 1 is a schematic view of an application scenario provided in an embodiment of the present application;
fig. 2 is a schematic diagram of a frame structure of uplink data provided in the prior art;
fig. 3 is a schematic diagram of a method for transmitting uplink data according to an embodiment of the present application;
fig. 4 is a schematic diagram of another uplink data transmission method according to an embodiment of the present application;
fig. 5 is a schematic diagram of another uplink data transmission method according to an embodiment of the present application;
fig. 6 is a schematic structural diagram of an uplink data transmission apparatus according to an embodiment of the present application;
fig. 7 is a schematic structural diagram of another uplink data transmission apparatus according to an embodiment of the present application;
fig. 8 is a schematic structural diagram of an electronic device according to an embodiment of the present application.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
The terms "first," "second," "third," "fourth," and the like in the description and in the claims, as well as in the drawings, if any, are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used is interchangeable under appropriate circumstances such that the embodiments of the invention described herein are capable of operation in sequences other than those illustrated or described herein. Furthermore, the terms "comprises," "comprising," and "having," and any variations thereof, are intended to cover a non-exclusive inclusion, such that a process, method, system, article, or apparatus that comprises a list of steps or elements is not necessarily limited to those steps or elements expressly listed, but may include other steps or elements not expressly listed or inherent to such process, method, article, or apparatus.
The technical solution of the present invention will be described in detail below with specific examples. The following several specific embodiments may be combined with each other, and details of the same or similar concepts or processes may not be repeated in some embodiments.
Fig. 1 is a schematic view of an application scenario provided in an embodiment of the present application.
Referring to fig. 1, the present invention may be applied to a scenario including a network device and at least one terminal (UE), where the network device may be a Base Station (BS).
The main function of a base station is understood to be wireless coverage, i.e. enabling wireless signal transmission between a wired communication network and a terminal. Referring to fig. 1, a base station NodeB1 may cover a cell 1.1, a cell 1.2, and a cell 1.3, a base station NodeB2 may cover a cell 2.1, a cell 2.2, and a cell 2.3, and a base station NodeB3 may cover a cell 3.1, a cell 3.2, and a cell 3.3. Terminals in a cell may be in signaling with a base station, e.g., terminal UE3 in cell 1.3, terminal UE1 in cell 1.1 may be in signaling with base station NodeB 1; a terminal UE2 in cell 2.2 may be in signaling communication with a base station NodeB 2.
It can be seen that a base station can be in communication connection with multiple terminals. The terminal may include, but is not limited to, at least one of: a Mobile phone, a tablet computer, a palm computer, a Personal Digital Assistant (PDA), a Mobile Internet Device (MID), and a smart wearable Device such as a smart watch and a smart band.
The following explains each term of art:
HARQ, Hybrid Automatic Repeat reQuest, refers to Hybrid Automatic Repeat reQuest, which can be understood as a technology that combines Forward Error Correction (FEC) coding and Automatic Repeat reQuest (ARQ).
PUSCH, Physical Uplink Shared Channel, may be understood as a Physical Uplink Shared Channel.
PDCCH, physical Downlink Control Channel, which may be understood as a physical Downlink Control Channel.
RTT, Round-Trip Time, which can be understood as Round Trip delay.
CRC, Cyclic Redundancy Check, which can be understood as a Cyclic Redundancy Check.
SFN, System Frame Number, which may be understood as a System Frame Number.
DCI, Downlink Control Information, which may be understood as Downlink Control Information.
RLC, Radio Link Control, which may be understood as a Radio Link Control layer protocol.
PDCP, Packet Data Convergence Protocol, which is understood to be a Packet Data Convergence Protocol.
HFN, Hyper Frame Number, which may be understood as a Hyper Frame Number.
NDI, New Data Indicator, which may be understood as a New Data Indicator.
Retransmission is understood to be the transmission of data that has been previously authorized for transmission.
A new transmission is understood to mean the first transmission of data that has not been transmitted previously.
The following describes the cause of the error in the determination of new transmission or retransmission in the prior art by taking three times of authorization of the same process as an example:
in the first authorization, after the terminal receives the uplink authorization information of the first authorization sent by the base station and completes the transmission of the required data, the terminal locally stores the current indication information, for example, NDI information with a value of 0, if the data received by the base station is deemed to be correct in CRC, the changed indication information, for example, NDI information with a value of 1, is used in the next scheduling of the same process, that is, in the second authorization, the indication information in the uplink authorization information of the second authorization sent by the base station is different from that in the first authorization.
However, if a situation similar to the situation that the terminal fails to receive the uplink grant information of the second grant occurs, the indication information locally stored by the terminal is still the indication information received during the first grant, for example, the NDI information with a value of 0, and is not updated, and meanwhile, the base station does not succeed in the new transmission scheduling and the retransmission scheduling implemented for the second grant, and the data to be transmitted at this time is not successfully transmitted, that is, the grant and the transmission at this time fail.
In the third authorization, when the base station sends the uplink authorization information of the third authorization, the indication information included therein is changed again, for example, may be the same as the indication information sent in the first authorization, that is, the same as the indication information locally stored by the terminal, and specifically, may be NDI information with a value of 0. At this time, when the terminal receives the uplink grant information granted for the third time, it is determined that the uplink grant information granted for the third time is used for indicating retransmission because the value of the indication information is the same as that of the locally stored indication information, thereby causing an error in judgment of retransmission of new transmission.
If the judgment is wrong, the terminal retransmits the data required to be transmitted by the first authorization to the base station, so that the base station receives repeated uplink data.
Fig. 2 is a schematic diagram of a frame structure of uplink data provided in the prior art.
Referring to fig. 2, if the indication information is NDI data:
the data frame granted for the first time may refer to the data frame SFN0, where subframe 1 indicates that the terminal receives the first newly transmitted downlink control information DCI0, and corresponds to NDI information with a value of 0, that is, the value of NDI information locally stored by the terminal is 0.
The data frame of the second grant may refer to data frame SFN1, data frame SFN2, data frame SFN3, and data frame SFN4, where subframe 1 of data frame SFN1 indicates that the base station sends the second newly transmitted downlink control information DCI0, and corresponds to NDI information with a value of 1, it is seen that, compared with the first grant, the NDI information changes, and since the terminal does not receive the information, and the maximum transmission frequency of HARQ is assumed to be 4, after the data frame SFN2, data frame SFN3, and data frame SFN4 are subjected to retransmission scheduling for three times, data is still not transmitted.
The data frame authorized for the third time may refer to the data frame SFN5, and subframe 1 of the data frame SFN5 indicates that the base station sends the third newly transmitted downlink control information DCI0, and corresponds to the NDI information with a value of 0, it can be seen that the value of the NDI information is the same as that of the first authorization, that is, the value of the NDI information is the same as that of the NDI information stored locally at the terminal, so that the terminal may consider that this authorization indicates retransmission of data required to be transmitted by the first authorization, and further repeat transmission occurs.
For the repeatedly transmitted data, if the time difference between the time and the last indicated transmission time of the same process is short, the RLC layer and the PDCP layer can detect the reception of the repeated data, and subsequent errors are not caused. However, in the case that the time gap is long and other processes are always transmitting data on the bearer, the RLC and the PDCP cannot determine whether the data just received is the repeated data, and further the HFN of the PDCP is turned over. It is seen that repeated transmissions can lead to subsequent errors.
Fig. 3 is a schematic diagram of a method for transmitting uplink data according to an embodiment of the present application.
Referring to fig. 3, the method for transmitting uplink data includes:
s11: the terminal receives first uplink authorization information sent by the network equipment.
The first uplink authorization information includes first indication information, where the first indication information is used to characterize that uplink data sent by the terminal is indicated by the network device as first data, the first data is data indicated by second indication information in second uplink authorization information, and the second uplink authorization information is previous uplink authorization information received by the terminal.
It can be understood as: the first indication information is identified by the terminal as being used for indicating that the uplink data required to be sent is the first data indicated by the second uplink authorization information received before retransmission, that is, the first indication information indicates retransmission.
S12: and the terminal determines target data from the first data and the second data according to the time interval between the receiving time of the first uplink authorization information and the receiving time of the second uplink authorization information.
The second data is data that is not transmitted to the network device, and therefore, if the second data is determined to be target data, it may also be understood that the current transmission is determined to be a new transmission instead of a retransmission, and if the first data is determined to be target data, it may also be understood that the current transmission is determined to be a retransmission instead of a new transmission.
S13: and the terminal transmits the target data to the network equipment.
In the method for transmitting uplink data provided in this embodiment, the terminal determines, according to the time interval between the receiving time of the first uplink grant information and the receiving time of the second uplink grant information, the target data from the first data and the second data, and the second data is data that is not transmitted to the network device.
Fig. 4 is a schematic diagram of another uplink data transmission method according to an embodiment of the present application.
Referring to fig. 4, the method for transmitting uplink data includes:
s21: the terminal receives first uplink authorization information sent by the network equipment.
The first uplink authorization information includes first indication information, where the first indication information is used to characterize that uplink data sent by the terminal is indicated by the network device as first data, the first data is data indicated by second indication information in second uplink authorization information, and the second uplink authorization information is previous uplink authorization information received by the terminal.
It can be understood as: the first indication information is identified by the terminal as being used for indicating that the uplink data required to be sent is the first data indicated by the second uplink authorization information received before retransmission, that is, the first indication information indicates retransmission. After further determination in the subsequent steps, the terminal may select whether to perform current transmission using the first data as uplink data, that is, select whether to perform retransmission.
In addition, the first uplink grant information may further include information of which carrier the terminal may transmit data on and the modulation and coding scheme used at which time.
In one embodiment, the first uplink grant information and the second uplink grant information are uplink grant information of the same HARQ process.
In one embodiment, the first indication information and the second indication information are new data indication NDI information, and the value of the NDI information may be 0 or 1.
S22: and the terminal determines target data from the first data and the second data according to the time interval between the receiving time of the first uplink authorization information and the receiving time of the second uplink authorization information.
The second data is data that is not transmitted to the network device, and therefore, if the second data is determined to be target data, it may also be understood that the current transmission is determined to be a new transmission instead of a retransmission, and if the first data is determined to be target data, it may also be understood that the current transmission is determined to be a retransmission instead of a new transmission.
The first indication information indicating retransmission includes at least two cases, one of which is: the transmission is actually the case of needing retransmission, and the two are: however, after receiving the second uplink authorization information, the terminal fails to successfully receive the uplink authorization information sent by the network device between the first uplink authorization information and the second uplink authorization information, and thus the indication information fails to accurately reflect the data to be transmitted, so that the time interval is introduced to perform further determination, so that the determined target data is more accurate.
Fig. 5 is a schematic diagram of another uplink data transmission method according to an embodiment of the present application.
In one embodiment, step S22 includes:
s221: whether the time interval is greater than a reference time.
If yes, go to step S222: and the terminal determines the second data as the target data. Which may be understood as determining that the current transmission is a new transmission.
If not, step S223 is performed: and the terminal determines the first data as the target data. Which may be understood as determining that the current transmission is a retransmission.
In one embodiment, the reference time is determined according to the maximum transmission times of the HARQ process and the RTT of the HARQ process. In a specific implementation process, the reference time is a product of the maximum transmission time and the RTT. Since each scheduling within the maximum transmission times may correspond to one RTT, and if the maximum transmission times is four times, a new transmission scheduling and a retransmission scheduling for three times within the maximum transmission times respectively correspond to one RTT, and for one-time authorization, if the time of the four-time scheduling is exceeded, that is, the reference time is exceeded, it may be generally determined that one or more uplink authorization information cannot be successfully received by the terminal, and further, the subsequent first indication information may not accurately reflect the data to be transmitted, so that a new transmission may be directly performed through step S222.
S23: and the terminal transmits the target data to the network equipment.
In addition to the above steps S21 to S23, in other alternative embodiments, the method may further include steps S24 and S25, which may be implemented after step S23 as shown in fig. 4, or may be implemented independently from steps S21 to S23.
S24: and the terminal receives the third uplink authorization information sent by the network equipment.
The third uplink authorization information includes third indication information, where the third indication information is used to characterize that the network device indicates that the uplink data sent by the terminal is third data.
The third data is data that is not transmitted to the network device. Therefore, the third indication information can be understood as indicating a new transmission.
S25: and the terminal transmits the third data to the network equipment.
Therefore, under the condition that the uplink authorization information indicates new transmission, the judgment can be carried out without introducing a time interval, and the transmission of the newly transmitted third data can be directly carried out.
In the method for transmitting uplink data provided in this embodiment, the terminal determines, according to the time interval between the receiving time of the first uplink grant information and the receiving time of the second uplink grant information, the target data from the first data and the second data, and the second data is data that is not transmitted to the network device.
Fig. 6 is a schematic structural diagram of an uplink data transmission apparatus according to an embodiment of the present application.
Referring to fig. 6, the apparatus 300 for transmitting uplink data includes:
a first receiving module 301, configured to receive first uplink grant information sent by a network device, where the first uplink grant information includes first indication information, and the first indication information is used to characterize that uplink data sent by an indication terminal of the network device is first data, the first data is data indicated by second indication information in second uplink grant information, and the second uplink grant information is previous uplink grant information received by the terminal.
A determining module 302, configured to determine, according to a time interval between a receiving time of the first uplink grant information and a receiving time of the second uplink grant information, target data from the first data and second data, where the second data is data that is not transmitted to the network device.
A first transmission module 303, configured to transmit the target data to the network device.
In the uplink data transmission apparatus provided in this embodiment, the target data is determined from the first data and the second data according to the time interval between the receiving time of the first uplink grant information and the receiving time of the second uplink grant information, and the second data is data that is not transmitted to the network device.
Fig. 7 is a schematic structural diagram of another uplink data transmission apparatus according to an embodiment of the present application.
Referring to fig. 7, an apparatus 400 for transmitting uplink data includes:
a first receiving module 401, configured to receive first uplink grant information sent by a network device, where the first uplink grant information includes first indication information, and the first indication information is used to characterize that uplink data sent by an indication terminal of the network device is first data, the first data is data indicated by second indication information in second uplink grant information, and the second uplink grant information is previous uplink grant information received by the terminal.
A determining module 402, configured to determine, according to a time interval between a receiving time of the first uplink grant information and a receiving time of the second uplink grant information, target data from the first data and second data, where the second data is data that is not transmitted to the network device.
A first transmission module 403, configured to transmit the target data to the network device.
Optionally, the first determining module 401 is specifically configured to:
if the time interval is greater than the reference time, the terminal determines that the second data is the target data;
and if the time interval is less than or equal to the reference time, the terminal determines that the first data is the target data.
Optionally, the first uplink grant information and the second uplink grant information are uplink grant information of the same hybrid automatic repeat request HARQ process;
the reference time is determined according to the maximum transmission times of the HARQ process and the round trip delay of the HARQ process.
Optionally, the reference time is a product of the maximum transmission number and the round trip delay.
Optionally, the first indication information and the second indication information are new data indication NDI information;
optionally, the apparatus for transmitting uplink data further includes:
a second receiving module 404, configured to receive third uplink grant information sent by the network device, where the third uplink grant information includes third indication information, and the third indication information is used to characterize that uplink data sent by the terminal is indicated by the network device as third data, and the third data is data that is not transmitted to the network device.
A second transmission module 405, configured to transmit the third data to the network device.
In the uplink data transmission apparatus provided in this embodiment, the target data is determined from the first data and the second data according to the time interval between the receiving time of the first uplink grant information and the receiving time of the second uplink grant information, and the second data is data that is not transmitted to the network device.
Fig. 8 is a schematic structural diagram of an electronic device according to an embodiment of the present application.
Referring to fig. 8, the present embodiment further provides an electronic device 50 including: a processor 51 and a memory 52; wherein:
a memory 52 for storing a computer program, which may also be a flash (flash memory).
And a processor 51 for executing the execution instructions stored in the memory to implement the steps of the above method. Reference may be made in particular to the description relating to the preceding method embodiment.
Alternatively, the memory 52 may be separate or integrated with the processor 51.
When the memory 52 is a device independent from the processor 51, the electronic device 50 may further include:
a bus 53 for connecting the memory 52 and the processor 51.
The present embodiment also provides a readable storage medium, in which an execution instruction is stored, and when at least one processor of the electronic device executes the execution instruction, the electronic device executes the method provided in the foregoing various embodiments.
The present embodiments also provide a program product comprising execution instructions stored in a readable storage medium. The at least one processor of the electronic device may read the execution instructions from the readable storage medium, and the execution of the execution instructions by the at least one processor causes the terminal to implement the methods provided by the various embodiments described above.
Those of ordinary skill in the art will understand that: all or a portion of the steps of implementing the above-described method embodiments may be performed by hardware associated with program instructions. The program may be stored in a computer-readable storage medium. When executed, the program performs steps comprising the method embodiments described above; and the aforementioned storage medium includes: various media that can store program codes, such as ROM, RAM, magnetic or optical disks.
Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; while the invention has been described in detail and with reference to the foregoing embodiments, it will be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; and the modifications or the substitutions do not make the essence of the corresponding technical solutions depart from the scope of the technical solutions of the embodiments of the present invention.
Claims (8)
1. A method for transmitting uplink data, comprising:
a terminal receives first uplink authorization information sent by network equipment, wherein the first uplink authorization information comprises first indication information, the first indication information is used for representing that the network equipment indicates that uplink data sent by the terminal is first data, the first data is data indicated by second indication information in second uplink authorization information, and the second uplink authorization information is previous uplink authorization information received by the terminal;
the terminal determines target data from the first data and second data according to a time interval between the receiving time of the first uplink authorization information and the receiving time of the second uplink authorization information, wherein the second data is data which is not transmitted to the network equipment; the terminal transmits the target data to the network equipment;
the terminal determines target data from the first data and the second data according to a time interval between the receiving time of the first uplink authorization information and the receiving time of the second uplink authorization information, and the method includes:
if the time interval is greater than the reference time, the terminal determines that the second data is the target data;
if the time interval is less than or equal to the reference time, the terminal determines the first data as the target data;
the first uplink authorization information and the second uplink authorization information are uplink authorization information of the same hybrid automatic repeat request (HARQ) process;
the reference time is determined according to the maximum transmission times of the HARQ process and the round-trip delay of the HARQ process;
the reference time is the product of the maximum transmission times and the round trip delay.
2. The method of claim 1, wherein the first indication information and the second indication information are New Data Indication (NDI) information.
3. The method of claim 1, further comprising:
the terminal receives third uplink authorization information sent by the network device, where the third uplink authorization information includes third indication information, the third indication information is used to characterize that uplink data sent by the terminal is indicated by the network device as third data, and the third data is data that is not transmitted to the network device;
transmitting the third data to the network device.
4. An apparatus for transmitting uplink data, comprising:
a first receiving module, configured to receive first uplink grant information sent by a network device, where the first uplink grant information includes first indication information, and the first indication information is used to characterize that uplink data sent by an indication terminal of the network device is first data, the first data is data indicated by second indication information in second uplink grant information, and the second uplink grant information is previous uplink grant information received by the terminal;
a determining module, configured to determine target data from the first data and second data according to a time interval between a receiving time of the first uplink grant information and a receiving time of the second uplink grant information, where the second data is data that is not transmitted to the network device;
a first transmission module, configured to transmit the target data to the network device;
the determining module is specifically configured to:
if the time interval is greater than the reference time, the terminal determines that the second data is the target data;
if the time interval is less than or equal to the reference time, the terminal determines the first data as the target data;
the first uplink authorization information and the second uplink authorization information are uplink authorization information of the same hybrid automatic repeat request (HARQ) process;
the reference time is determined according to the maximum transmission times of the HARQ process and the round-trip delay of the HARQ process;
the reference time is the product of the maximum transmission times and the round trip delay.
5. The apparatus of claim 4, wherein the first indication information and the second indication information are New Data Indication (NDI) information.
6. The apparatus of claim 4, further comprising:
a second receiving module, configured to receive third uplink grant information sent by the network device, where the third uplink grant information includes third indication information, and the third indication information is used to characterize that uplink data sent by the terminal is indicated by the network device as third data, and the third data is data that is not transmitted to the network device;
a second transmission module, configured to transmit the third data to the network device.
7. An electronic device, comprising: a memory, a processor, and a computer program, the computer program being stored in the memory, the processor executing the computer program to perform the method for transmitting upstream data according to any one of claims 1 to 3.
8. A storage medium storing a computer program which, when executed by a processor, implements the method for transmitting upstream data according to any one of claims 1 to 3.
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