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CN106922032B - Data time domain transmission method, control method, terminal, base station and baseband chip - Google Patents

Data time domain transmission method, control method, terminal, base station and baseband chip Download PDF

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Publication number
CN106922032B
CN106922032B CN201710108734.5A CN201710108734A CN106922032B CN 106922032 B CN106922032 B CN 106922032B CN 201710108734 A CN201710108734 A CN 201710108734A CN 106922032 B CN106922032 B CN 106922032B
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Prior art keywords
continuous transmission
scheduling information
data
transmission scheduling
base station
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CN106922032A (en
Inventor
孙立新
丁颖哲
周明宇
陈华敏
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Baicells Technologies Co Ltd
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Baicells Technologies Co Ltd
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Priority to CN201710108734.5A priority Critical patent/CN106922032B/en
Publication of CN106922032A publication Critical patent/CN106922032A/en
Priority to PCT/CN2018/076046 priority patent/WO2018153286A1/en
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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
    • H04L1/1848—Time-out mechanisms
    • H04L1/1851—Time-out mechanisms using multiple timers
    • 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
    • H04L1/1864—ARQ related signaling
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/12—Wireless traffic scheduling
    • H04W72/1221—Wireless traffic scheduling based on age of data to be sent
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/20—Control channels or signalling for resource management
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/20—Control channels or signalling for resource management
    • H04W72/23—Control channels or signalling for resource management in the downlink direction of a wireless link, i.e. towards a terminal
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W76/00—Connection management
    • H04W76/20—Manipulation of established connections
    • H04W76/27—Transitions between radio resource control [RRC] states

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

Abstract

The invention provides a data time domain transmission method, a control method, a terminal, a base station and a baseband chip, wherein the data time domain transmission method is used for transmitting data in an unauthorized frequency band and comprises the following steps: acquiring continuous transmission scheduling information issued by a base station in the current channel occupation time; and according to the continuous transmission scheduling information, performing data continuous transmission within the current channel occupation time, wherein the data continuous transmission comprises the steps that the terminal uploads data to the base station and/or the base station sends data to the terminal. By the technical scheme of the invention, the condition of data transmission failure caused by incomplete repeated transmission of data in the occupied time of a single channel can be avoided, the repeated transmission of the data in an unauthorized frequency band by the communication equipment is realized, and the success rate of the repeated transmission is improved.

Description

Data time domain transmission method, control method, terminal, base station and baseband chip
[ technical field ] A method for producing a semiconductor device
The present invention relates to the field of communications technologies, and in particular, to a data time domain transmission method, a control method, a terminal, a base station, and a baseband chip.
[ background of the invention ]
The MulteFire technology is a wireless access technology for extending LTE (Long Term Evolution) to an unlicensed frequency band, and in the technology, a carrier wave of the unlicensed frequency band can independently provide service without the help of a carrier wave of the licensed frequency band.
At present, in order to enable a plurality of unlicensed band devices (e.g., Wi-Fi devices) to fairly occupy an unlicensed band channel and avoid mutual interference between the unlicensed band devices, a Listen-Before-Talk (LBT) mechanism similar to a Wi-Fi carrier monitoring technique is introduced into an mf (multefire) physical layer, when a base station or a terminal monitors that the unlicensed band channel is occupied, that is, when LBT fails, a signal must not be sent, and when the unlicensed band channel is monitored to be idle, that is, when LBT succeeds, the signal is sent.
However, for some unauthorized frequency band devices located in some special geographic locations, for example, water meters and electric meters located in basements, since channel fading at the geographic location is relatively large and the signal penetration loss is relatively large, it is necessary to perform CE (Coverage Enhancement) on each physical channel to enhance the signal quality and extend the transmission distance.
In the related art, for the first to fourth generation mobile communication systems, since it is on the licensed band, the channel is always available. For the mobile communication system using the MulteFire technology, because a plurality of unlicensed frequency band devices need to coexist and operate under the LBT mechanism, the MCOT (Maximum channel occupancy Time) after a single unlicensed frequency band device accesses a channel each Time is affected by the LBT mechanism, the channel is not always available for the unlicensed frequency band device, for example, the longest channel occupancy Time of the MulteFire device may not exceed 10ms at present, and if the unlicensed frequency band device does not complete repetitive transmission within the channel occupancy Time of itself, data transmission failure may be caused, and a communication function is affected.
Therefore, how to strengthen the coverage enhancement of the communication device for data in the unlicensed frequency band and improve the success rate of transmission becomes a technical problem to be solved urgently at present.
[ summary of the invention ]
The embodiment of the invention provides a data time domain transmission method, a control method, a terminal, a base station and a baseband chip, aiming at solving the technical problems of realizing the repetitive transmission of data of communication equipment in an unauthorized frequency band and improving the success rate of the repetitive transmission, realizing the coverage enhancement of a data channel of the unauthorized frequency band and improving the reliability of a communication function.
In a first aspect, an embodiment of the present invention provides a data time domain transmission method, configured to transmit data in an unlicensed frequency band, where the method includes: acquiring continuous transmission scheduling information issued by a base station in the current channel occupation time; and according to the continuous transmission scheduling information, performing data continuous transmission within the current channel occupation time, wherein the data continuous transmission comprises the steps that the terminal uploads data to the base station and/or the base station sends data to the terminal.
In the above embodiment of the present invention, optionally, before the step of obtaining the continuous transmission scheduling information issued by the base station, the method further includes: detecting the interval duration of the ending time point of the prior channel occupation time and the starting time point of the current channel occupation time; according to the interval duration, determining the continuous transmission scheduling information issued by the base station to be detected under the condition that the interval duration is less than or equal to a preset duration; and detecting the continuous transmission scheduling information issued by the base station, wherein when the continuous transmission scheduling information issued by the base station is detected, the step of acquiring the continuous transmission scheduling information issued by the base station is carried out.
In the above embodiment of the present invention, optionally, the step of continuing data transmission within the current channel occupation time according to the continuous transmission scheduling information specifically includes: determining a first time point and repeated transmission times in the current channel occupation time according to the continuous transmission scheduling information, wherein the repeated transmission times comprise: the time domain repeated transmission times and the frequency domain repeated transmission times; and continuing data transmission from the first time point according to the repeated transmission times.
In the above embodiment of the present invention, optionally, the step of determining the first time point within the current channel occupation time according to the transmission continuation scheduling information specifically includes: detecting whether the continuous transmission scheduling information carries an ending time point of a time window for sending the continuous transmission scheduling information; when the detection result is yes, acquiring the ending time point from the continuous transmission scheduling information; when the detection result is negative, acquiring the length of the predefined time window, detecting the starting time point of the current channel occupation time, and adding the starting time point and the length of the time window to obtain the ending time point of the time window; acquiring the time interval between the ending time point and the first time point; and adding the ending time point and the time interval to obtain the first time point.
In the above embodiment of the present invention, optionally, the step of determining the first time point within the current channel occupation time according to the transmission continuation scheduling information specifically includes: determining a second time point when the terminal detects the continuous transmission scheduling information and a time interval between the second time point and the first time point; and adding the second time point and the time interval to obtain the first time point.
In the foregoing embodiment of the present invention, optionally, the step of obtaining the continuous transmission scheduling information issued by the base station includes: whether continuous transmission scheduling information issued by a base station exists in a common control channel is detected, wherein the common control channel is an original common control channel or a common control channel of newly allocated resources.
In the foregoing embodiment of the present invention, optionally, the step of obtaining the continuous transmission scheduling information issued by the base station includes: detecting whether multi-user shared continuous transmission scheduling information issued by a base station exists in a downlink control channel; when the fact that the multi-user shared continuous transmission scheduling information exists in the downlink control channel is detected, obtaining a continuous transmission control indication corresponding to the user identification from the multi-user shared continuous transmission scheduling information according to the user identification of the terminal, wherein the continuous transmission control indication comprises a continuous transmission indication and a non-continuous transmission indication; and when the continuous transmission control indication is the continuous transmission indication, allowing data continuous transmission.
In the foregoing embodiment of the present invention, optionally, the step of obtaining the continuous transmission scheduling information issued by the base station includes: and in a newly allocated time frequency resource, detecting whether a new physical channel has continuous transmission scheduling information issued by a base station, wherein the continuous transmission scheduling information is a sequence.
In a second aspect, an embodiment of the present invention provides a terminal, configured to transmit data in an unlicensed frequency band, where the terminal includes: the continuous transmission scheduling information acquisition unit is used for acquiring continuous transmission scheduling information issued by the base station in the current channel occupation time; and the data continuous transmission unit is used for carrying out data continuous transmission within the current channel occupation time according to the continuous transmission scheduling information, wherein the data continuous transmission comprises the data uploading of the terminal to the base station and/or the data sending of the base station to the terminal.
In the above embodiment of the present invention, optionally, the method further includes: the first pre-detection unit detects the interval duration between the ending time point of the prior channel occupation time and the starting time point of the current channel occupation time before the continuous transmission scheduling information acquisition unit acquires the continuous transmission scheduling information issued by the base station; the determining unit is used for determining the continuous transmission scheduling information issued by the base station to be detected according to the interval duration under the condition that the interval duration is less than or equal to the preset duration; and the second pre-detection unit is used for detecting the continuous transmission scheduling information issued by the base station, wherein when the continuous transmission scheduling information issued by the base station is detected, the continuous transmission scheduling information issued by the base station is acquired by the continuous transmission scheduling information acquisition unit.
In the above embodiment of the present invention, optionally, the data resuming unit includes: a transmission resuming parameter determining unit, configured to determine, according to the transmission resuming scheduling information, a first time point and a number of repeated transmissions within the current channel occupation time, where the number of repeated transmissions includes: the time domain repeated transmission times and the frequency domain repeated transmission times; the data resuming unit is specifically configured to: and continuing data transmission from the first time point according to the repeated transmission times.
In the above embodiment of the present invention, optionally, the continuation parameter determining unit is configured to: detecting whether the continuous transmission scheduling information carries an ending time point of a time window for sending the continuous transmission scheduling information, wherein when the detection result is yes, the ending time point is obtained from the continuous transmission scheduling information, and when the detection result is no, the length of the time window which is defined in advance is obtained, the starting time point of the current channel occupation time is detected, and the starting time point and the length of the time window are added to obtain the ending time point of the time window; and is also used for: and acquiring the time interval between the ending time point and the first time point, and adding the ending time point and the time interval to obtain the first time point.
In the above embodiment of the present invention, optionally, the continuation parameter determining unit is configured to: and determining a second time point when the terminal detects the continuous transmission scheduling information and a time interval between the second time point and the first time point, and adding the second time point and the time interval to obtain the first time point.
In the above embodiment of the present invention, optionally, the continuous transmission scheduling information obtaining unit includes: the first execution unit detects whether the continuous transmission scheduling information issued by the base station exists in a common control channel, wherein the common control channel is an original common control channel or a common control channel of newly allocated resources.
In the above embodiment of the present invention, optionally, the continuous transmission scheduling information obtaining unit includes: and a second execution unit, configured to detect whether a downlink control channel has multi-user shared continuous transmission scheduling information issued by a base station, wherein when it is detected that the downlink control channel has the multi-user shared continuous transmission scheduling information, a continuous transmission control indication corresponding to a user identifier is obtained from the multi-user shared continuous transmission scheduling information according to the user identifier of the terminal, the continuous transmission control indication includes a continuous transmission indication and a non-continuous transmission indication, and when the continuous transmission control indication is the continuous transmission indication, data continuous transmission is allowed.
In the above embodiment of the present invention, optionally, the continuous transmission scheduling information obtaining unit includes: and the third execution unit detects whether the continuous transmission scheduling information issued by the base station exists in a new physical channel in a newly allocated time-frequency resource, wherein the continuous transmission scheduling information is a sequence.
In a third aspect, an embodiment of the present invention provides a data time domain transmission control method, configured to control data transmission in an unlicensed frequency band, where the method includes: detecting whether there is an outstanding data transmission within a previous channel occupancy time; when detecting that the previous channel occupation time has unfinished data transmission, issuing continuous transmission scheduling information corresponding to the unfinished data transmission in the current channel occupation time so as to perform data continuous transmission according to the continuous transmission scheduling information issued by the base station, wherein the data continuous transmission comprises that the terminal uploads data to the base station and/or the base station issues data to the terminal.
In the above embodiment of the present invention, optionally, before the step of issuing the continuous transmission scheduling information corresponding to the uncompleted data transmission within the current channel occupation time, the method further includes: and issuing initial scheduling information at a previous channel occupation time before the current channel occupation time, wherein the initial scheduling information is the same as or different from the continuous transmission scheduling information.
In the above embodiment of the present invention, optionally, the step of issuing the continuous transmission scheduling information corresponding to the uncompleted data transmission specifically includes: and issuing the continuous transmission scheduling information through a common control channel of the newly allocated resources or an original control channel.
In the above embodiment of the present invention, optionally, the step of issuing the continuous transmission scheduling information corresponding to the uncompleted data transmission specifically includes: and issuing multi-user shared continuous transmission scheduling information through downlink control channel multicast, wherein the multi-user shared continuous transmission scheduling information comprises continuous transmission control instructions corresponding to a plurality of terminals, and the continuous transmission control instructions comprise continuous transmission instructions and non-continuous transmission instructions.
In the above embodiment of the present invention, optionally, the step of issuing the continuous transmission scheduling information corresponding to the uncompleted data transmission specifically includes: and issuing continuous transmission scheduling information through a new physical channel multicast, wherein the continuous transmission scheduling information is a sequence. When the user detects the continuous transmission scheduling information, the continuous transmission is judged; and when the user cannot detect the continuous transmission scheduling information, judging that the continuous transmission is not performed. Further, the resource occupied by the new physical channel is shared by multiple users.
In a fourth aspect, an embodiment of the present invention provides a base station, configured to control data transmission in an unlicensed frequency band, where the base station includes: the data continuous transmission detection unit detects whether unfinished data transmission exists in the previous channel occupation time; and when the data continuous transmission detection unit detects that the previous channel occupation time has unfinished data transmission, the continuous transmission scheduling information release unit releases continuous transmission scheduling information corresponding to the unfinished data transmission in the current channel occupation time so as to carry out data continuous transmission according to the continuous transmission scheduling information released by the base station, wherein the data continuous transmission comprises that the terminal uploads data to the base station and/or the base station sends data to the terminal.
In the above embodiment of the present invention, optionally, the method further includes: and an initial scheduling information issuing unit that issues initial scheduling information at a previous channel occupation time before the current channel occupation time before the transmission resuming scheduling information is issued by the transmission resuming scheduling information issuing unit, wherein the initial scheduling information is the same as or different from the transmission resuming scheduling information.
In the above embodiment of the present invention, optionally, the continuous transmission scheduling information issuing unit is configured to: and issuing the continuous transmission scheduling information through a common control channel of the newly allocated resources or an original control channel.
In the above embodiment of the present invention, optionally, the continuous transmission scheduling information issuing unit is configured to: and issuing multi-user shared continuous transmission scheduling information through downlink control channel multicast, wherein the multi-user shared continuous transmission scheduling information comprises continuous transmission control instructions corresponding to a plurality of terminals, and the continuous transmission control instructions comprise continuous transmission instructions and non-continuous transmission instructions.
In the above embodiment of the present invention, optionally, the continuous transmission scheduling information issuing unit is configured to: and issuing continuous transmission scheduling information through a new physical channel multicast, wherein the continuous transmission scheduling information is a sequence.
In a fifth aspect, an embodiment of the present invention provides a terminal, including: a processor; and a memory having stored therein instructions executable by the processor, and the processor is configured to invoke the instructions stored by the memory to perform the following operations: acquiring continuous transmission scheduling information issued by a base station in the current channel occupation time; and according to the continuous transmission scheduling information, performing data continuous transmission within the current channel occupation time, wherein the data continuous transmission comprises the steps that the terminal uploads data to the base station and/or the base station sends data to the terminal.
In a sixth aspect, an embodiment of the present invention provides a baseband chip, for a terminal, including: a processor; and a memory having stored therein instructions executable by the processor, and the processor is configured to invoke the instructions stored by the memory to perform the following operations: acquiring continuous transmission scheduling information issued by a base station for a terminal within the current channel occupation time; and according to the continuous transmission scheduling information, performing data continuous transmission within the current channel occupation time, wherein the data continuous transmission comprises the steps that the terminal uploads data to the base station and/or the base station sends data to the terminal.
In a seventh aspect, an embodiment of the present invention provides a base station, including: a processor; and a memory having stored therein instructions executable by the processor, and the processor is configured to invoke the instructions stored by the memory to perform the following operations: detecting whether there is an outstanding data transmission within a previous channel occupancy time; when detecting that the previous channel occupation time has unfinished data transmission, issuing continuous transmission scheduling information corresponding to the unfinished data transmission in the current channel occupation time so as to perform data continuous transmission according to the continuous transmission scheduling information issued by the base station, wherein the data continuous transmission comprises that the terminal uploads data to the base station and/or the base station issues data to the terminal.
In the above technical solution, aiming at the technical problems of how to strengthen the coverage enhancement of data in an unlicensed frequency band by a communication device and improve the success rate of transmission in the related art, in the process of data transmission through a physical uplink shared channel or a physical downlink shared channel, if a base station detects that there is unfinished data transmission within the previous channel occupation time, the base station may issue the continuous transmission scheduling information, and when the terminal detects the continuous transmission scheduling information, the terminal may perform data continuous transmission within the current channel occupation time according to the indication content of the continuous transmission scheduling information.
Therefore, the situation of data transmission failure caused by incomplete repeated data transmission within the single channel occupation time can be avoided, the coverage enhancement of the data channel of the unauthorized frequency band and the data continuous transmission spanning multiple channel occupation times in the unauthorized frequency band can be realized, the communication reliability is improved, and the user experience is improved.
[ description of the drawings ]
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings needed to be used in the embodiments 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 it is obvious for those skilled in the art to obtain other drawings based on these drawings without inventive labor.
Fig. 1 shows a flow chart of a data time domain transmission method of an embodiment of the present invention;
fig. 2 shows a flow chart of a data time domain transmission method of another embodiment of the present invention;
FIG. 3 shows a flow chart for calculating a first point in time in the embodiment shown in FIG. 2;
FIG. 4 is a schematic diagram illustrating time domain transmission of data in the embodiment shown in FIG. 2;
FIG. 5 shows a flow chart for calculating a first point in time in a further embodiment of the invention;
FIG. 6 is a schematic diagram illustrating time domain transmission of data in the embodiment shown in FIG. 5;
FIG. 7 shows a block diagram of a terminal of one embodiment of the invention;
fig. 8 is a flowchart illustrating a data time domain transmission control method according to an embodiment of the present invention;
FIG. 9 shows a block diagram of a base station of one embodiment of the present invention;
FIG. 10 shows a block diagram of a terminal of one embodiment of the invention;
FIG. 11 shows a block diagram of a baseband chip of one embodiment of the invention;
fig. 12 shows a block diagram of a base station of another embodiment of the invention.
[ detailed description ] embodiments
For better understanding of the technical solutions of the present invention, the following detailed descriptions of the embodiments of the present invention are provided with reference to the accompanying drawings.
It should be understood that the described embodiments are only some embodiments of the invention, and not all 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 terminology used in the embodiments of the invention is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used in the examples of the present invention 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.
Example one
Fig. 1 shows a flow chart of a data time domain transmission method according to an embodiment of the present invention.
As shown in fig. 1, a data time domain transmission method according to an embodiment of the present invention is used for transmitting data in an unlicensed frequency band, and includes:
and 102, acquiring continuous transmission scheduling information issued by the base station in the current channel occupation time.
The continuous transmission scheduling information is information indicating when and what way the terminal performs repetitive data continuous transmission within the current channel occupation time, and the data continuous transmission refers to that the terminal uploads data to the base station and/or the base station sends data to the terminal, and of course, the data continuous transmission can also be data interaction performed between two terminals.
Therefore, in the process of data transmission through the physical uplink shared channel or the physical downlink shared channel, if the base station detects that unfinished data transmission exists in the previous channel occupation time, the continuous transmission scheduling information can be issued for the terminal to use, that is, no matter who both sides of the data continuous transmission are, the base station controls the data continuous transmission process and issues the continuous transmission scheduling information.
And step 104, continuing data transmission within the current channel occupation time according to the continuous transmission scheduling information.
When the terminal detects the continuous transmission scheduling information, the terminal can continuously transmit data within the current channel occupation time according to the indication content of the continuous transmission scheduling information. Therefore, the situation of data transmission failure caused by incomplete repeated data transmission within the single channel occupation time can be avoided, data continuous transmission spanning multiple channel occupation times in an unauthorized frequency band is realized, the reliability of communication is improved, and the user experience is improved.
The description is supplemented and refined by two pairs of embodiments one.
Example two
Fig. 2 shows a flow chart of a data time domain transmission method according to another embodiment of the present invention.
As shown in fig. 2, a data time domain transmission method according to another embodiment of the present invention is used for transmitting data in an unlicensed frequency band, and includes:
step 202, detecting the starting time point of the current channel occupation time of the base station side. That is, the time point at which the acquisition base station starts to occupy the current channel.
Step 204, detecting the interval duration between the time point of stopping data transmission in the previous channel occupation time and the starting time point of the current channel occupation time.
The time point of the data transmission stop can be any point in the previous channel occupation time, and can also be the ending time point of the previous channel occupation time, so that the interval duration from the time of the data transmission stop to the time of the current channel occupation time can be accurately calculated, and the interval duration is a basis for further judging whether the continuous transmission scheduling information issued by the base station needs to be detected, so that the interval duration is accurately calculated, and the accuracy of the subsequent steps can be improved.
In some cases, in order to improve the convenience of the detection step, the interval duration between the ending time point of the previous channel occupation time and the starting time point of the current channel occupation time may also be directly calculated as a basis for further determination.
And step 206, judging whether the continuous transmission scheduling information issued by the base station needs to be detected or not according to the interval duration, entering step 208 when the judgment result is yes, and ending the process when the judgment result is no.
And under the condition that the interval duration is less than or equal to the preset duration, the judgment result is that the continuous transmission scheduling information issued by the base station needs to be detected.
The predetermined duration is a higher layer signaling, such as RRC (Radio Resource Control protocol) signaling, configured by the base station and shared by multiple users or specific to a single user. Generally, the predetermined duration may be understood as the lowest interval duration during which data can be continuously transmitted within the current channel occupancy after the data transmission interruption of the previous channel occupancy, and thus, the actual interval duration may be compared with the predetermined duration to determine whether data transmission is likely to be successfully performed.
When the interval duration is less than or equal to the predetermined duration, the interval duration does not exceed the minimum interval duration capable of continuously transmitting data within the current channel occupation time, which indicates that data continuous transmission is still possible, at this time, step 208 is entered, and whether continuous transmission scheduling information issued by the base station can be acquired is detected, so as to determine whether data continuous transmission exists within the current channel occupation time.
And if the judgment result is that the interval duration is longer than the preset duration, the terminal does not need to detect whether the continuous transmission scheduling information issued by the base station can be acquired. That is, if the actual interval duration is longer than the predetermined duration, it indicates that the interruption time of the repetitive data transmission is too long, and the continuous transmission cannot be performed or is not necessary.
And 208, detecting the continuous transmission scheduling information issued by the base station, wherein when the continuous transmission scheduling information issued by the base station is detected, the step 210 is entered, and when the continuous transmission scheduling information issued by the base station is not detected, the process can be directly ended. Alternatively, not shown in fig. 2, the detection is continued for a certain period of time, and if the detection is not continued, the process is ended.
Step 210, obtaining the continuous transmission scheduling information issued by the base station in the current channel occupation time.
Step 212, according to the continuous transmission scheduling information, determining a first time point and repeated transmission times in the current channel occupation time.
And 214, continuing data transmission from the first time point according to the repeated transmission times.
The first time point is a time point when data continuous transmission starts within the current channel occupation time, and the repeated transmission times comprise time domain repeated transmission times and frequency domain repeated transmission times, and indicate time frequency resources required by data continuous transmission.
One implementation of determining a first time point within the current channel occupancy time according to the continuous transmission scheduling information is described below with reference to fig. 3 and 4.
As shown in fig. 3, the step of calculating the first time point includes:
step 302, detecting whether the continuous transmission scheduling information carries an ending time point of a time window for sending the continuous transmission scheduling information, if so, entering step 304, and if not, entering step 306.
And step 304, acquiring an end time point from the continuous transmission scheduling information.
Since the base station transmits the continuous transmission scheduling information in a specific time window, the end time point of the time window can be directly recorded in the continuous transmission scheduling information.
Step 306, obtaining the length of the predefined time window, and detecting the starting time point of the current channel occupation time.
Step 308, add the starting time point and the length of the time window to obtain the ending time point of the time window.
It should be understood that the time window may start at the beginning of the current channel occupancy time or may start at a third time of the current channel occupancy time. Further, the length of the time window is predefined, or configured by the base station, or derived by the user through the subframe index where the time window configured by the base station ends.
In steps 306 and 308, the length of the time window is predefined, so the terminal may also detect the starting time point of the current channel occupation time and add the length of the predefined time window to calculate the ending time point of the time window.
In step 310, the time interval between the ending time point and the first time point is obtained.
Step 312, add the ending time point and the time interval to obtain a first time point.
The time interval refers to the time interval required for data transmission after the time window end time point, that is, the time interval
Wherein,k is the time interval between the subframe index and the first time point, k is more than or equal to 0,the subframe index for the first time point, i.e. the beginning of the repetitive data transmission. Here, the time interval may be predefined or may be transmitted in the dynamic continuous transmission scheduling information.
For example, when k is 0, a Transmission Time Interval (TTI) at the end of the Time window starts to transmit repeated continuous Transmission data.
For another example, as shown in fig. 4, the previous channel occupation time 211 has incomplete repetitive data transmission, and when the terminal detects that the base station performs transmission of the continuous transmission scheduling information in the time window 221 of the current channel occupation time, the continuous transmission scheduling information is obtained, where the TTI marked as a is a time point of transmitting the continuous transmission scheduling information in the time window 221, and when detecting that k is 1 in the continuous transmission scheduling information, repetitive data transmission may be started in a first TTI after a subframe index at which the time window 221 ends, that is, the TTI marked as B in fig. 4, where a duration of the repetitive data transmission is shown as a time window 231.
EXAMPLE III
On the basis of the embodiment shown in fig. 2, there may be another implementation manner shown in fig. 5 and fig. 6 that is used to determine the first time point within the current channel occupation time according to the continuous transmission scheduling information.
As shown in fig. 5, includes:
step 502, determining a second time point when the terminal detects the continuous transmission scheduling information, and a time interval between the second time point and the first time point.
Step 504, adding the second time point and the time interval to obtain the first time point. The time interval refers to the time interval required for data transmission after the second time point, that is, the time interval
Wherein,a second time point when the terminal detects the continuous transmission of the scheduling information, k is the time interval between the second time point and the first time point, k is more than or equal to 0,the subframe index for the first time point, i.e. the beginning of the repetitive data transmission.
For example, when the value of k is 0, the repeated continuous transmission data starts to be transmitted in the TTI at the second time point.
For another example, as shown in fig. 6, the previous channel occupation time 311 has incomplete repetitive data transmission, when the terminal detects that the base station has performed transmission of the continuous transmission scheduling information within the current channel occupation time 321, a second time point of transmitting the continuous transmission scheduling information, that is, a TTI marked as a in fig. 6, is obtained, and when it detects that k is 1 in the continuous transmission scheduling information, repetitive data continuous transmission may be started in a first TTI after the second time point, that is, a TTI marked as C in fig. 6. Wherein the repetitive data transmission is performed for a period of time as shown in time window 331.
It should be added that, in the first to third embodiments, the step of obtaining the continuous transmission scheduling information issued by the base station further has the following multiple implementation manners:
in an optional implementation manner, it may be detected whether the persistent scheduling information issued by the base station exists in the common control channel, where the common control channel is an original common control channel or a common control channel to which resources are newly allocated, and all users in the cell determine whether there is data to be persistently transmitted based on the persistent scheduling information.
That is, the original common control channel can be used to acquire the continuous transmission scheduling information issued by the base station, and here, new indication information needs to be additionally introduced to indicate continuous transmission. For example, 1 bit indicates information indicating whether the user has continuous transmission. Or, the new time-frequency resource can be used, and the common control channel where the new time-frequency resource is located is used to acquire the continuous transmission scheduling information issued by the base station, so that the problem that the original common control channel with weak transmission capability is still used when data transmission is interrupted due to the weak transmission capability of the original common control channel is avoided, the data continuous transmission failure is avoided, and the communication efficiency is improved.
In another optional implementation manner, whether shared continuous transmission scheduling information issued by a base station exists in a downlink control channel is detected; when detecting that the downlink control channel has multi-user shared continuous transmission scheduling information, acquiring a continuous transmission control indication corresponding to a user identifier from the multi-user shared continuous transmission scheduling information according to the user identifier of a terminal, wherein the continuous transmission control indication comprises a continuous transmission indication and a non-continuous transmission indication; and when the continuous transmission control indication is the continuous transmission indication, allowing the data to be continuously transmitted.
The base station can directly issue a plurality of shared continuous transmission scheduling information, each shared continuous transmission scheduling information bears a plurality of continuous transmission control instructions, wherein different shared continuous transmission scheduling information corresponds to different groups of communication equipment, and different continuous transmission control instructions in the same multi-user shared continuous transmission scheduling information correspond to different communication equipment. Therefore, after the terminal detects that the multiple users share the continuous transmission scheduling information, the continuous transmission control indication corresponding to the user identification of the terminal can be directly identified in the continuous transmission scheduling information so as to complete the continuous transmission of the data. Therefore, the base station reduces the frequency of issuing the continuous transmission scheduling information and improves the communication efficiency.
In another alternative implementation, in a newly allocated time-frequency resource, it is detected whether a new physical channel has the continuous transmission scheduling information issued by the base station, where the continuous transmission scheduling information is a sequence. The continuous transmission scheduling information is set as a sequence, so that the terminal can start to continuously transmit data only when detecting the sequence in the detection process, and the terminal does not continuously transmit data when not detecting the sequence, thereby simplifying the step of judging whether to continuously transmit the data by the terminal and improving the working efficiency of the terminal. Further, the newly allocated time-frequency resource is shared by multiple users. I.e. one sequence may correspond to a plurality of users indicating whether to continue transmission.
Example four
Fig. 7 shows a block diagram of a terminal of an embodiment of the invention.
As shown in fig. 7, a terminal 700 according to an embodiment of the present invention is configured to repeatedly transmit data in an unlicensed frequency band, and includes a retransmission scheduling information obtaining unit 702 and a data retransmission unit 704.
The continuous transmission scheduling information obtaining unit 702 is configured to obtain continuous transmission scheduling information issued by the base station in the current channel occupation time.
The data resuming unit 704 is configured to resume data resuming within the current channel occupation time according to the resuming scheduling information, where the data resuming includes data uploading from the terminal to the base station and/or data sending from the base station to the terminal.
In an optional implementation manner of this embodiment, the data resuming unit 704 includes a resuming parameter determining unit 7042.
The transmission resuming parameter determining unit 7042 is configured to determine, according to the transmission resuming scheduling information, a first time point and a number of repeated transmissions within the current channel occupation time, where the number of repeated transmissions includes: the number of time domain repetitive transmissions and the number of frequency domain repetitive transmissions.
The data resuming unit 704 is specifically configured to: and continuing data transmission from the first time point according to the repeated transmission times.
Further, in an optional implementation manner of this embodiment, the continuation parameter determining unit 7042 is configured to: detecting whether the continuous transmission scheduling information carries an end time point of a time window for sending the continuous transmission scheduling information, wherein when the detection result is yes, the end time point is obtained from the continuous transmission scheduling information, and when the detection result is no, the length of a predefined time window is obtained, the start time point of the current channel occupation time is detected, and the start time point and the length of the time window are added to obtain the end time point of the time window; and is also used for: and acquiring the time interval between the ending time point and the first time point, and adding the ending time point and the time interval to obtain the first time point.
Further, in an alternative implementation of the present embodiment, the continuation parameter determination unit 7042 is configured to: and determining a second time point when the terminal detects the continuous transmission of the scheduling information and a time interval between the second time point and the first time point, and adding the second time point and the time interval to obtain the first time point.
In an optional implementation manner of this embodiment, the terminal 700 further includes a first pre-detection unit 706, a determination unit 708, and a second pre-detection unit 710.
The first pre-detection unit 706 is configured to detect an interval duration between an end time point of a previous channel occupation time and a start time point of a current channel occupation time before the continuous transmission scheduling information obtaining unit 702 obtains the continuous transmission scheduling information issued by the base station.
The determining unit 708 is configured to determine, according to the interval duration, that the continuous transmission scheduling information issued by the base station needs to be detected when the interval duration is less than or equal to a predetermined duration.
The second pre-detection unit 710 is configured to detect whether the continuous transmission scheduling information issued by the base station can be acquired, where when the detection result is yes, the continuous transmission scheduling information issued by the base station is acquired by the continuous transmission scheduling information acquisition unit 702.
It should be added that, in an optional implementation manner of this embodiment, the resuming scheduling information obtaining unit 702 includes: a first executing unit 7022, configured to detect whether there is continuous transmission scheduling information issued by the base station in a common control channel, where the common control channel is an original common control channel or a common control channel to which resources are newly allocated.
It should be added that, in an optional implementation manner of this embodiment, the resuming scheduling information obtaining unit 702 includes: a second executing unit 7024, configured to detect whether there is multi-user shared continuous transmission scheduling information issued by the base station in the downlink control channel, where when it is detected that there is multi-user shared continuous transmission scheduling information in the downlink control channel, a continuous transmission control indication corresponding to a user identifier is obtained from the multi-user shared continuous transmission scheduling information according to the user identifier of the terminal, the continuous transmission control indication includes a continuous transmission indication and a non-continuous transmission indication, and when the continuous transmission control indication is the continuous transmission indication, data continuous transmission is allowed to be performed.
It should be added that, in an optional implementation manner of this embodiment, the resuming scheduling information obtaining unit 702 includes: a third executing unit 7026 detects whether there is any continuous transmission scheduling information issued by the base station in a new physical channel in a newly allocated time-frequency resource, where the continuous transmission scheduling information is a sequence.
The terminal 700 in this embodiment may use the data time domain transmission method according to any one of the first to third embodiments, so that all technical effects of the first to third embodiments are achieved, and details are not described herein.
EXAMPLE five
Fig. 8 shows a flowchart of a data time domain transmission control method according to an embodiment of the present invention.
As shown in fig. 8, a data time domain transmission control method according to an embodiment of the present invention is used for controlling repeated data transmission in an unlicensed frequency band, and includes:
step 802, detecting whether there is an outstanding data transmission within a previous channel occupancy time.
If there is unfinished data transmission, continuous transmission scheduling information can be issued so as to finish the data transmission and improve the effectiveness of communication, and if there is no unfinished data transmission, the base station does not need to act.
Step 804, when detecting that there is unfinished data transmission in the previous channel occupation time, issuing continuous transmission scheduling information corresponding to the unfinished data transmission in the current channel occupation time, so as to perform data continuous transmission according to the continuous transmission scheduling information issued by the base station.
The data continuous transmission includes that the terminal uploads data to the base station and/or the base station sends data to the terminal, that is, in the process of data transmission through a physical uplink shared channel or a physical downlink shared channel, if the base station detects that unfinished data transmission exists in the previous channel occupation time, the continuous transmission scheduling information can be issued.
Therefore, the situation of data transmission failure caused by incomplete repeated data transmission within the single channel occupation time can be avoided, data continuous transmission spanning multiple channel occupation times in the unauthorized frequency band is realized, the regulation and control capability of the base station side on the unauthorized frequency band data transmission is improved, and the user experience is improved.
In the above embodiment of the present invention, optionally, before step 804, further includes: and issuing initial scheduling information at a previous channel occupation time before the current channel occupation time, wherein the initial scheduling information is the same as or different from the continuous transmission scheduling information.
The initial scheduling information and the continuous transmission scheduling information both include time-frequency resources used for data transmission, wherein the continuous transmission scheduling information is carried on a control channel, and for convenience of data transmission, the continuous transmission scheduling information and the initial scheduling information corresponding to data may use the same control signaling, that is, the scheduling information includes the same indication fields and has the same values.
However, when the time-frequency resource of the initial scheduling information is unavailable or has low efficiency to cause interruption of data transmission, the continuous transmission scheduling information may also indicate a new time-frequency resource different from the initial scheduling information, for continuous transmission, where the new time-frequency resource includes a resource in a frequency domain, a number of repeated transmissions in a current channel occupation time, and the like, and the number of repeated transmissions here includes a number of repeated transmissions in the frequency domain and a number of repeated transmissions in a time domain, which may be different from the previous channel occupation time. Therefore, the success rate of data continuous transmission can be further improved.
In an optional implementation manner of this embodiment, step 804 specifically includes: and issuing continuous transmission scheduling information through the common control channel of the newly allocated resources or the original control channel.
That is, the base station may issue the continuous transmission scheduling information using the original common control channel, and all users in the cell determine whether there is continuous transmission of data based on the continuous transmission scheduling information, where new indication information needs to be additionally introduced to indicate continuous transmission. For example, 1 bit indicates information indicating whether the user has continuous transmission.
Or, the new time-frequency resource can be used, and the common control channel where the new time-frequency resource is located is used for issuing the continuous transmission scheduling information, so that the problem that the original common control channel with weak transmission capability is still used when data transmission is interrupted due to the weak transmission capability of the original common control channel is avoided, the data continuous transmission failure is avoided, and the communication efficiency is improved.
In another optional implementation manner of this embodiment, step 804 specifically includes: the step of issuing the continuous transmission scheduling information corresponding to the uncompleted data transmission specifically includes: and issuing multi-user shared continuous transmission scheduling information through downlink control channel multicast, wherein the multi-user shared continuous transmission scheduling information comprises continuous transmission control instructions corresponding to a plurality of terminals, and the continuous transmission control instructions comprise a continuous transmission instruction and a non-continuous transmission instruction.
The base station can directly issue a plurality of shared continuous transmission scheduling information, each shared continuous transmission scheduling information bears a plurality of continuous transmission control instructions, wherein different shared continuous transmission scheduling information corresponds to different groups of communication equipment, and different continuous transmission control instructions in the same multi-user shared continuous transmission scheduling information correspond to different communication equipment. Therefore, after the terminal detects that the multiple users share the continuous transmission scheduling information, the continuous transmission control indication corresponding to the user identification of the terminal can be directly identified in the continuous transmission scheduling information so as to complete the continuous transmission of the data. Therefore, the base station reduces the frequency of issuing the continuous transmission scheduling information and improves the communication efficiency.
In yet another optional implementation manner of this embodiment, step 804 specifically includes: the step of issuing the continuous transmission scheduling information corresponding to the uncompleted data transmission specifically includes: and issuing the continuous transmission scheduling information through a new physical channel multicast, wherein the continuous transmission scheduling information is a sequence.
The continuous transmission scheduling information is set into a group of sequences, so that the content issued by the base station is simpler, the working efficiency of the base station is improved, meanwhile, in the detection process, the terminal can start to perform continuous transmission of data only by detecting the sequences, and if the sequences cannot be detected, the continuous transmission of the data is not performed, the step of judging whether to perform continuous transmission of the data by the terminal is simplified, and the working efficiency of the terminal is improved.
EXAMPLE six
Fig. 9 shows a block diagram of a base station of an embodiment of the invention.
As shown in fig. 9, a base station 900 according to an embodiment of the present invention is configured to control data transmission in an unlicensed frequency band, and the base station 900 includes a data retransmission detecting unit 902 and a retransmission scheduling information issuing unit 904.
The data continuous transmission detection unit 902 is configured to detect whether there is an unfinished data transmission in the previous channel occupation time.
The continuous transmission scheduling information issuing unit 904 is configured to issue continuous transmission scheduling information corresponding to uncompleted data transmission within the current channel occupation time when the data continuous transmission detecting unit 902 detects that there is uncompleted data transmission within the previous channel occupation time, so as to perform data continuous transmission according to the continuous transmission scheduling information issued by the base station.
The data continuous transmission comprises the steps that the terminal uploads data to the base station and/or the base station sends the data to the terminal.
In an optional implementation manner of this embodiment, the base station 900 further includes an initial scheduling information issuing unit 906, and the initial scheduling information issuing unit 906 is configured to issue the initial scheduling information at a previous channel occupation time before the current channel occupation time before the transmission resuming scheduling information issuing unit 904 issues the transmission resuming scheduling information.
The initial scheduling information is the same as or different from the continuous transmission scheduling information.
In an optional implementation manner of this embodiment, the continuous transmission scheduling information issuing unit 904 is configured to: and issuing continuous transmission scheduling information through the common control channel of the newly allocated resources or the original control channel.
In another optional implementation manner of this embodiment, the continuous transmission scheduling information issuing unit 904 is configured to: and issuing multi-user shared continuous transmission scheduling information through downlink control channel multicast, wherein the multi-user shared continuous transmission scheduling information comprises continuous transmission control instructions corresponding to a plurality of terminals, and the continuous transmission control instructions comprise a continuous transmission instruction and a non-continuous transmission instruction.
In yet another optional implementation manner of this embodiment, the continuous transmission scheduling information issuing unit 904 is configured to: and issuing the continuous transmission scheduling information through a new physical channel multicast, wherein the continuous transmission scheduling information is a sequence.
The base station 900 in this embodiment may use the data time domain transmission control method in any technical solution of the fifth embodiment, so that all technical effects described in the fifth embodiment are achieved, and details are not described herein.
Fig. 10 shows a block diagram of a terminal of an embodiment of the invention.
As shown in fig. 10, terminal 1000 can include: a processor 1004 and a memory 1002, the memory 1002 having stored therein instructions executable by the processor 1004, and the processor 1004 being configured to invoke the instructions stored by the memory 1002 to perform the following operations: acquiring continuous transmission scheduling information issued by a base station in the current channel occupation time; and according to the continuous transmission scheduling information, performing continuous transmission of data in the current channel occupation time, wherein the continuous transmission of the data comprises the steps that the terminal uploads the data to the base station and/or the base station sends the data to the terminal.
FIG. 11 shows a block diagram of a baseband chip of one embodiment of the invention.
As shown in fig. 11, the baseband chip 1100 includes: a processor 1104 and a memory 1102, the memory 1102 having stored therein instructions executable by the processor 1104, and the processor 1104 being configured to invoke the instructions stored by the memory 1102 to perform the following operations: acquiring continuous transmission scheduling information issued by a base station for a terminal within the current channel occupation time; and according to the continuous transmission scheduling information, performing continuous transmission of data in the current channel occupation time, wherein the continuous transmission of the data comprises the steps that the terminal uploads the data to the base station and/or the base station sends the data to the terminal.
Fig. 12 shows a block diagram of a base station of another embodiment of the invention.
As shown in fig. 12, the base station 1200 includes: a processor 1204 and a memory 1202, the memory 1202 having stored therein instructions executable by the processor 1204, and the processor 1204 being configured to invoke the instructions stored by the memory 1202 to perform the following operations: detecting whether there is an outstanding data transmission within a previous channel occupancy time; when detecting that unfinished data transmission exists in the previous channel occupation time, issuing continuous transmission scheduling information corresponding to the unfinished data transmission in the current channel occupation time so as to carry out data continuous transmission according to the continuous transmission scheduling information issued by the base station, wherein the data continuous transmission comprises the steps that the terminal uploads data to the base station and/or the base station issues data to the terminal.
The technical scheme of the invention is described in detail in combination with the attached drawings, and by the technical scheme of the invention, the condition of data transmission failure caused by incomplete repeated transmission of data in single channel occupation time can be avoided, data continuous transmission spanning multiple channel occupation times in an unauthorized frequency band is realized, the reliability of communication is increased, and the user experience is improved.
The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
It should be understood that although the terms first, second, etc. may be used to describe points in time in embodiments of the present invention, these points in time should not be limited by these terms. These terms are only used to distinguish points in time from one another. For example, the first time point may also be referred to as a second time point, and similarly, the second time point may also be referred to as a first time point without departing from the scope of the embodiments of the present invention.
The word "if" as used herein may be interpreted as "at … …" or "when … …" or "in response to a determination" or "in response to a detection", depending on the context. Similarly, the phrases "if determined" or "if detected (a stated condition or event)" may be interpreted as "when determined" or "in response to a determination" or "when detected (a stated condition or event)" or "in response to a detection (a stated condition or event)", depending on the context.
It should be noted that the terminal according to the embodiment of the present invention may include, but is not limited to, a Personal Computer (PC), a Personal Digital Assistant (PDA), a wireless handheld device, a Tablet Computer (Tablet Computer), a mobile phone, an MP3 player, an MP4 player, and the like.
In the embodiments provided in the present invention, it should be understood that the disclosed system, apparatus and method may be implemented in other ways. For example, the above-described apparatus embodiments are merely illustrative, and for example, the division of the units is only one logical division, and there may be other divisions in actual implementation, for example, a plurality of units or components may be combined or integrated into another system, or some features may be omitted, or not executed. In addition, the shown or discussed mutual coupling or direct coupling or communication connection may be an indirect coupling or communication connection through some interfaces, devices or units, and may be in an electrical, mechanical or other form.
In addition, functional units in the embodiments of the present invention may be integrated into one processing unit, or each unit may exist alone physically, or two or more units are integrated into one unit. The integrated unit can be realized in a form of hardware, or in a form of hardware plus a software functional unit.
The integrated unit implemented in the form of a software functional unit may be stored in a computer readable storage medium. The software functional unit is stored in a storage medium and includes several instructions for causing a computer device (which may be a personal computer, a server, or a network device) or a Processor (Processor) to execute some steps of the methods according to the embodiments of the present invention. And the aforementioned storage medium includes: various media capable of storing program codes, such as a usb disk, a removable hard disk, a Read-Only Memory (ROM), a Random Access Memory (RAM), a magnetic disk, or an optical disk.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents, improvements and the like made within the spirit and principle of the present invention should be included in the scope of the present invention.

Claims (19)

1. A data time domain transmission method, configured to transmit data in an unlicensed frequency band, the method comprising:
acquiring continuous transmission scheduling information issued by a base station in the current channel occupation time;
according to the continuous transmission scheduling information, data continuous transmission is carried out in the current channel occupation time, wherein the data continuous transmission comprises the steps that a terminal uploads data to a base station and/or the base station sends data to the terminal;
the step of obtaining the continuous transmission scheduling information issued by the base station includes:
detecting whether multi-user shared continuous transmission scheduling information issued by a base station exists in a downlink control channel;
when the fact that the multi-user shared continuous transmission scheduling information exists in the downlink control channel is detected, obtaining a continuous transmission control indication corresponding to the user identification from the multi-user shared continuous transmission scheduling information according to the user identification of the terminal, wherein the continuous transmission control indication comprises a continuous transmission indication and a non-continuous transmission indication;
when the continuous transmission control indication is the continuous transmission indication, allowing data continuous transmission;
the continuous transmission scheduling information comprises a plurality of shared continuous transmission scheduling information, each shared continuous transmission scheduling information bears a plurality of continuous transmission control instructions, different shared continuous transmission scheduling information corresponds to different groups of communication equipment, and different continuous transmission control instructions in the same multi-user shared continuous transmission scheduling information correspond to different communication equipment.
2. The method of claim 1, wherein before the step of obtaining the continuous transmission scheduling information issued by the base station, the method further comprises:
detecting the interval duration of the ending time point of the prior channel occupation time and the starting time point of the current channel occupation time;
according to the interval duration, determining the continuous transmission scheduling information issued by the base station to be detected under the condition that the interval duration is less than or equal to a preset duration; and
and detecting the continuous transmission scheduling information issued by the base station, wherein when the continuous transmission scheduling information issued by the base station is detected, the step of acquiring the continuous transmission scheduling information issued by the base station is carried out.
3. The method according to claim 1 or 2, wherein the step of continuing data transmission within the current channel occupation time according to the continuous transmission scheduling information specifically includes:
determining a first time point and repeated transmission times in the current channel occupation time according to the continuous transmission scheduling information, wherein the repeated transmission times comprise: the time domain repeated transmission times and the frequency domain repeated transmission times;
and continuing data transmission from the first time point according to the repeated transmission times.
4. The method according to claim 3, wherein the step of determining the first time point within the current channel occupancy time according to the continuous transmission scheduling information specifically includes:
when the continuous transmission scheduling information carries an end time point of a time window for sending the continuous transmission scheduling information, acquiring the end time point from the continuous transmission scheduling information;
acquiring the time interval between the ending time point and the first time point;
and adding the ending time point and the time interval to obtain the first time point.
5. The method according to claim 3, wherein the step of determining the first time point within the current channel occupancy time according to the continuous transmission scheduling information specifically includes:
when the continuous transmission scheduling information does not carry the ending time point of the time window used for sending the continuous transmission scheduling information, acquiring the length of the time window which is defined in advance, detecting the starting time point of the occupied time of the current channel, and adding the starting time point and the length of the time window to obtain the ending time point of the time window;
and
acquiring the time interval between the ending time point and the first time point;
and adding the ending time point and the time interval to obtain the first time point.
6. The method according to claim 3, wherein the step of determining the first time point within the current channel occupancy time according to the continuous transmission scheduling information specifically includes:
determining a second time point when the terminal detects the continuous transmission scheduling information and a time interval between the second time point and the first time point; and
and adding the second time point and the time interval to obtain the first time point.
7. A terminal configured to transmit data in an unlicensed frequency band, the terminal comprising:
the continuous transmission scheduling information acquisition unit is used for acquiring continuous transmission scheduling information issued by the base station in the current channel occupation time;
the data continuous transmission unit is used for carrying out data continuous transmission within the current channel occupation time according to the continuous transmission scheduling information, wherein the data continuous transmission comprises the steps that the terminal uploads data to the base station and/or the base station sends data to the terminal;
the continuous transmission scheduling information obtaining unit comprises:
a second execution unit, configured to detect whether a downlink control channel has multi-user shared continuous transmission scheduling information issued by a base station, where when it is detected that the downlink control channel has the multi-user shared continuous transmission scheduling information, a continuous transmission control indication corresponding to a user identifier is obtained from the multi-user shared continuous transmission scheduling information according to the user identifier of the terminal, where the continuous transmission control indication includes a continuous transmission available indication and a non-continuous transmission available indication, and when the continuous transmission control indication is the continuous transmission available indication, data continuous transmission is allowed;
the continuous transmission scheduling information comprises a plurality of shared continuous transmission scheduling information, each shared continuous transmission scheduling information bears a plurality of continuous transmission control instructions, different shared continuous transmission scheduling information corresponds to different groups of communication equipment, and different continuous transmission control instructions in the same multi-user shared continuous transmission scheduling information correspond to different communication equipment.
8. The terminal of claim 7, further comprising:
the first pre-detection unit detects the interval duration between the ending time point of the prior channel occupation time and the starting time point of the current channel occupation time before the continuous transmission scheduling information acquisition unit acquires the continuous transmission scheduling information issued by the base station;
the determining unit is used for determining the continuous transmission scheduling information issued by the base station to be detected according to the interval duration under the condition that the interval duration is less than or equal to the preset duration; and
and the second pre-detection unit is used for detecting the continuous transmission scheduling information issued by the base station, wherein when the continuous transmission scheduling information issued by the base station is detected, the continuous transmission scheduling information issued by the base station is acquired through the continuous transmission scheduling information acquisition unit.
9. The terminal according to claim 7 or 8, wherein the data resuming unit comprises:
a transmission resuming parameter determining unit, configured to determine, according to the transmission resuming scheduling information, a first time point and a number of repeated transmissions within the current channel occupation time, where the number of repeated transmissions includes: the time domain repeated transmission times and the frequency domain repeated transmission times;
the data resuming unit is specifically configured to:
and continuing data transmission from the first time point according to the repeated transmission times.
10. The terminal of claim 9, wherein the continuation parameter determining unit is configured to:
when the continuous transmission scheduling information carries an end time point of a time window for sending the continuous transmission scheduling information, acquiring the end time point from the continuous transmission scheduling information, acquiring a time interval between the end time point and the first time point, and adding the end time point and the time interval to obtain the first time point.
11. The terminal of claim 9, wherein the continuation parameter determining unit is configured to:
when the continuous transmission scheduling information does not carry the ending time point of the time window used for sending the continuous transmission scheduling information, the length of the time window which is defined in advance is obtained, the starting time point of the current channel occupation time is detected, the starting time point and the length of the time window are added to obtain the ending time point of the time window, the time interval between the ending time point and the first time point is obtained, and the ending time point and the time interval are added to obtain the first time point.
12. The terminal of claim 9, wherein the continuation parameter determining unit is configured to:
and determining a second time point when the terminal detects the continuous transmission scheduling information and a time interval between the second time point and the first time point, and adding the second time point and the time interval to obtain the first time point.
13. A data time domain transmission control method for controlling data transmission in an unlicensed frequency band, the method comprising:
detecting whether there is an outstanding data transmission within a previous channel occupancy time;
when detecting that the previous channel occupation time has unfinished data transmission, issuing continuous transmission scheduling information corresponding to the unfinished data transmission in the current channel occupation time so as to perform data continuous transmission according to the continuous transmission scheduling information issued by the base station, wherein the data continuous transmission comprises that the terminal uploads data to the base station and/or the base station issues data to the terminal;
the step of issuing the continuous transmission scheduling information corresponding to the uncompleted data transmission specifically includes:
the method comprises the steps of issuing multi-user shared continuous transmission scheduling information through a downlink control channel in a multicast mode, wherein the multi-user shared continuous transmission scheduling information comprises continuous transmission control instructions corresponding to a plurality of terminals, and the continuous transmission control instructions comprise continuous transmission instructions and non-continuous transmission instructions;
the continuous transmission scheduling information comprises a plurality of shared continuous transmission scheduling information, each shared continuous transmission scheduling information bears a plurality of continuous transmission control instructions, different shared continuous transmission scheduling information corresponds to different groups of communication equipment, and different continuous transmission control instructions in the same multi-user shared continuous transmission scheduling information correspond to different communication equipment.
14. The method of claim 13, wherein before the step of issuing the continuous transmission scheduling information corresponding to the uncompleted data transmission within the current channel occupation time, the method further comprises:
issuing initial scheduling information at a previous channel occupancy time prior to the current channel occupancy time, wherein,
the initial scheduling information is the same as or different from the continuous transmission scheduling information.
15. A base station for controlling data transmission in an unlicensed frequency band, the base station comprising:
the data continuous transmission detection unit detects whether unfinished data transmission exists in the previous channel occupation time;
a continuous transmission scheduling information issuing unit, configured to issue continuous transmission scheduling information corresponding to the uncompleted data transmission within the current channel occupation time when the data continuous transmission detecting unit detects that there is uncompleted data transmission within the previous channel occupation time, so as to perform data continuous transmission according to the continuous transmission scheduling information issued by the base station, where the data continuous transmission includes that the terminal uploads data to the base station and/or the base station issues data to the terminal;
the continuous transmission scheduling information issuing unit is used for:
the method comprises the steps of issuing multi-user shared continuous transmission scheduling information through a downlink control channel in a multicast mode, wherein the multi-user shared continuous transmission scheduling information comprises continuous transmission control instructions corresponding to a plurality of terminals, and the continuous transmission control instructions comprise continuous transmission instructions and non-continuous transmission instructions;
the continuous transmission scheduling information comprises a plurality of shared continuous transmission scheduling information, each shared continuous transmission scheduling information bears a plurality of continuous transmission control instructions, different shared continuous transmission scheduling information corresponds to different groups of communication equipment, and different continuous transmission control instructions in the same multi-user shared continuous transmission scheduling information correspond to different communication equipment.
16. The base station of claim 15, further comprising:
and an initial scheduling information issuing unit that issues initial scheduling information at a previous channel occupation time before the current channel occupation time before the transmission resuming scheduling information is issued by the transmission resuming scheduling information issuing unit, wherein the initial scheduling information is the same as or different from the transmission resuming scheduling information.
17. A terminal, comprising:
a processor; and
a memory for storing a plurality of data to be transmitted,
the memory has stored therein instructions executable by the processor, and the processor is configured to invoke the instructions stored by the memory to perform the following operations:
acquiring continuous transmission scheduling information issued by a base station in the current channel occupation time;
according to the continuous transmission scheduling information, data continuous transmission is carried out in the current channel occupation time, wherein the data continuous transmission comprises the steps that a terminal uploads data to a base station and/or the base station sends data to the terminal;
the step of obtaining the continuous transmission scheduling information issued by the base station includes:
detecting whether multi-user shared continuous transmission scheduling information issued by a base station exists in a downlink control channel;
when the fact that the multi-user shared continuous transmission scheduling information exists in the downlink control channel is detected, obtaining a continuous transmission control indication corresponding to the user identification from the multi-user shared continuous transmission scheduling information according to the user identification of the terminal, wherein the continuous transmission control indication comprises a continuous transmission indication and a non-continuous transmission indication;
when the continuous transmission control indication is the continuous transmission indication, allowing data continuous transmission;
the continuous transmission scheduling information comprises a plurality of shared continuous transmission scheduling information, each shared continuous transmission scheduling information bears a plurality of continuous transmission control instructions, different shared continuous transmission scheduling information corresponds to different groups of communication equipment, and different continuous transmission control instructions in the same multi-user shared continuous transmission scheduling information correspond to different communication equipment.
18. A baseband chip for a terminal, comprising:
a processor; and
a memory for storing a plurality of data to be transmitted,
the memory has stored therein instructions executable by the processor, and the processor is configured to invoke the instructions stored by the memory to perform the following operations:
acquiring continuous transmission scheduling information issued by a base station for a terminal within the current channel occupation time;
according to the continuous transmission scheduling information, data continuous transmission is carried out in the current channel occupation time, wherein the data continuous transmission comprises the steps that a terminal uploads data to a base station and/or the base station sends data to the terminal;
the step of obtaining the continuous transmission scheduling information issued by the base station includes:
detecting whether multi-user shared continuous transmission scheduling information issued by a base station exists in a downlink control channel;
when the fact that the multi-user shared continuous transmission scheduling information exists in the downlink control channel is detected, obtaining a continuous transmission control indication corresponding to the user identification from the multi-user shared continuous transmission scheduling information according to the user identification of the terminal, wherein the continuous transmission control indication comprises a continuous transmission indication and a non-continuous transmission indication;
when the continuous transmission control indication is the continuous transmission indication, allowing data continuous transmission;
the continuous transmission scheduling information comprises a plurality of shared continuous transmission scheduling information, each shared continuous transmission scheduling information bears a plurality of continuous transmission control instructions, different shared continuous transmission scheduling information corresponds to different groups of communication equipment, and different continuous transmission control instructions in the same multi-user shared continuous transmission scheduling information correspond to different communication equipment.
19. A base station, comprising:
a processor; and
a memory for storing a plurality of data to be transmitted,
the memory has stored therein instructions executable by the processor, and the processor is configured to invoke the instructions stored by the memory to perform the following operations:
detecting whether there is an outstanding data transmission within a previous channel occupancy time;
when detecting that the previous channel occupation time has unfinished data transmission, issuing continuous transmission scheduling information corresponding to the unfinished data transmission in the current channel occupation time so as to perform data continuous transmission according to the continuous transmission scheduling information issued by the base station, wherein the data continuous transmission comprises that the terminal uploads data to the base station and/or the base station issues data to the terminal;
the step of issuing the continuous transmission scheduling information corresponding to the uncompleted data transmission specifically includes:
the method comprises the steps of issuing multi-user shared continuous transmission scheduling information through a downlink control channel in a multicast mode, wherein the multi-user shared continuous transmission scheduling information comprises continuous transmission control instructions corresponding to a plurality of terminals, and the continuous transmission control instructions comprise continuous transmission instructions and non-continuous transmission instructions;
the continuous transmission scheduling information comprises a plurality of shared continuous transmission scheduling information, each shared continuous transmission scheduling information bears a plurality of continuous transmission control instructions, different shared continuous transmission scheduling information corresponds to different groups of communication equipment, and different continuous transmission control instructions in the same multi-user shared continuous transmission scheduling information correspond to different communication equipment.
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Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106922032B (en) * 2017-02-27 2019-12-24 北京佰才邦技术有限公司 Data time domain transmission method, control method, terminal, base station and baseband chip
EP3675585B1 (en) 2017-09-25 2022-08-24 Huawei Technologies Co., Ltd. Communication method and apparatus
CN116506087A (en) 2018-01-19 2023-07-28 华为技术有限公司 Method and apparatus for managing channel occupancy of unlicensed frequency bands
US11917660B2 (en) * 2018-09-20 2024-02-27 Beijing Xiaomi Mobile Software Co., Ltd. Method for control instruction transmission, base station, and terminal
CN111491392B (en) * 2019-01-29 2022-05-24 华为技术有限公司 Communication method, terminal equipment and access network equipment
CN113455092B (en) * 2019-02-15 2024-12-13 苹果公司 System and method for channel occupancy time (COT) sharing in unlicensed spectrum
CN111800235B (en) 2019-04-08 2021-11-09 华为技术有限公司 Sending method and device of COT (chip on Table) indication information
EP4030661B1 (en) * 2019-09-12 2025-06-04 Hytera Communications Corporation Limited Data transmission method, system, and device, terminal, and storage device
WO2021062853A1 (en) 2019-10-01 2021-04-08 Oppo广东移动通信有限公司 Information transmission method and apparatus, and mobile terminal and storage medium
WO2021127960A1 (en) * 2019-12-24 2021-07-01 Qualcomm Incorporated Signaling for channel occupancy time sharing in frame based equipment mode

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105072690A (en) * 2015-09-06 2015-11-18 魅族科技（中国）有限公司 Unlicensed spectrum-based data transmission method and device
CN105187173A (en) * 2015-09-08 2015-12-23 魅族科技（中国）有限公司 Data retransmission method for non-authorized frequency spectrums, and device
CN105376861A (en) * 2014-08-22 2016-03-02 中兴通讯股份有限公司 Sending method by occupying unlicensed carriers, system and access point
CN105634687A (en) * 2014-11-04 2016-06-01 夏普株式会社 Unauthorized spectrum communication retransmission method, base station and user equipment
CN106304100A (en) * 2015-06-28 2017-01-04 上海无线通信研究中心 A kind of many communication systems time sharing transmissions method coexisting in unlicensed frequency band

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9819459B2 (en) * 2014-12-22 2017-11-14 Microsoft Technology Licensing, Llc Channel sensing enhancement
US10277366B2 (en) * 2015-01-30 2019-04-30 Electronics And Telecommunications Research Institute Method and apparatus for transmitting signal using unlicensed band in cellular system
CN106304369B (en) * 2015-05-15 2019-08-23 上海诺基亚贝尔股份有限公司 The method and device of resource contention based on access priority
CN106376089B (en) * 2015-07-24 2020-02-14 中国移动通信集团公司 Data transmission method, system, user equipment and base station
CN106922032B (en) * 2017-02-27 2019-12-24 北京佰才邦技术有限公司 Data time domain transmission method, control method, terminal, base station and baseband chip

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105376861A (en) * 2014-08-22 2016-03-02 中兴通讯股份有限公司 Sending method by occupying unlicensed carriers, system and access point
CN105634687A (en) * 2014-11-04 2016-06-01 夏普株式会社 Unauthorized spectrum communication retransmission method, base station and user equipment
CN106304100A (en) * 2015-06-28 2017-01-04 上海无线通信研究中心 A kind of many communication systems time sharing transmissions method coexisting in unlicensed frequency band
CN105072690A (en) * 2015-09-06 2015-11-18 魅族科技（中国）有限公司 Unlicensed spectrum-based data transmission method and device
CN105187173A (en) * 2015-09-08 2015-12-23 魅族科技（中国）有限公司 Data retransmission method for non-authorized frequency spectrums, and device

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