CN105451358B - A kind of ascending transmission method, base station and terminal - Google Patents

Abstract

The invention discloses a kind of ascending transmission methods, are applied to base station side；The described method includes: receiving uplink scheduling request message；Uplink scheduling authorization signaling is determined according to the uplink scheduling request message, and sends the uplink scheduling authorization signaling；Wherein, the uplink scheduling authorization signaling indicates the different subframes of N number of different moments；The N is the positive integer more than or equal to 2.The invention also discloses a kind of base stations, terminal.

Description

An uplink transmission method, base station and terminal

technical field

The present invention relates to wireless communication technologies, and in particular, to an uplink transmission method, a base station and a terminal.

Background technique

The Long Term Evolution (LTE, Long Term Evolution) system adopts a deterministic scheduling method based on the authorization of the base station; specifically, in the LTE system, the terminal makes an uplink scheduling request to the base station, and after obtaining the scheduling authorization of the base station, Send uplink service data after a period of time; here, in the LTE system, the uplink scheduling request and the actual uplink service data transmission process have a relatively definite timing relationship; The licensed frequency band is designed, therefore, there will be no services of other systems in the LTE system, and the problem of signal interference is controllable.

The widespread deployment of the LTE system has led to more and more limited spectrum resources; therefore, the coexistence problem of the LTE system with other technologies in the unlicensed frequency band has become one of the problems to be solved urgently today; wherein, in the coexistence problem A particularly prominent problem is the mutual interference between the LTE system technology and wireless fidelity (wifi) and other technologies; the interference mainly comes from two methods:

First, the interference of the wifi to the LTE system; because the LTE system uses unlicensed spectrum, the wifi channel will occupy the unlicensed spectrum, so it will bring service in the LTE system in the unlicensed spectrum. Moreover, the service in Wifi technology has a short transmission time and a back-off mechanism, that is, the wifi can detect whether the channel is occupied, and if the channel is occupied, it will take back-off measures, so it can adapt to the sudden interference on the unlicensed spectrum. The problem. However, the LTE system adopts the design idea in the licensed frequency band and lacks a similar back-off mechanism, thus causing difficulties in the use of the LTE technology in the unlicensed spectrum;

Second, the LTE system interferes with technologies such as wifi;

Therefore, there is an urgent need for a method that can not only avoid the interference of wifi on the LTE system, but also avoid the interference of the LTE system with technologies such as wifi.

SUMMARY OF THE INVENTION

In order to solve the existing technical problems, the embodiments of the present invention provide an uplink transmission method, a base station and a terminal, which can realize the transmission of uplink service data in an unlicensed frequency band.

An embodiment of the present invention provides an uplink transmission method, and the method is applied to the base station side; the method includes:

Receive an uplink scheduling request message;

Determine uplink scheduling grant signaling according to the uplink scheduling request message, and send the uplink scheduling grant signaling; wherein, the uplink scheduling grant signaling indicates N different subframes at different times; N is greater than or equal to 2 positive integer of .

In the above solution, the N different subframes at different times indicated in the uplink scheduling grant signaling correspond to the channels corresponding to the unlicensed spectrum in the long-term evolution system.

In the above solution, the frequency band corresponding to the uplink scheduling authorization signaling identifies itself as a frequency band on a licensed spectrum or a frequency band on an unlicensed spectrum.

In the above scheme, the method also includes:

Receive uplink service data;

demodulating the uplink service data;

A demodulation result of the uplink service data is determined.

In the above solution, the determining the demodulation result of the uplink service data includes:

When it is determined that the uplink service data is successfully demodulated, a confirmation success message is sent;

When it is determined that the demodulation of the uplink service data fails, a confirmation failure message is sent.

The embodiment of the present invention also provides an uplink transmission method, and the method is applied to the terminal side; the method includes:

Send an uplink scheduling request message;

Receive the uplink scheduling grant signaling determined according to the uplink scheduling request message; wherein, the uplink scheduling grant signaling indicates N different subframes at different times; the N is a positive integer greater than or equal to 2.

In the above solution, the N different subframes at different times indicated in the uplink scheduling grant signaling correspond to the channels corresponding to the unlicensed spectrum in the long-term evolution system.

In the above scheme, the method also includes:

determining a frequency band corresponding to the first subframe at the first moment in the different subframes at the N different times;

When it is determined that the frequency band parameter value of the frequency band corresponding to the first subframe at the first time in the different subframes at the N different times is smaller than the preset threshold, the first time in the different subframes at the N different times The uplink service data corresponding to the uplink scheduling request message is sent on the frequency band corresponding to the first subframe.

In the above scheme, the method also includes:

When the frequency band parameter value of the frequency band corresponding to the first subframe at the first time in the different subframes at the N different times is greater than or equal to a preset threshold, determine the second frequency band in the different subframes at the N different times The frequency band corresponding to the second subframe at the time is determined, and it is determined whether the frequency band parameter value of the frequency band corresponding to the second subframe at the second time among the different subframes at the second time is less than a preset threshold.

In the above scheme, the method also includes:

When the frequency band parameter value of the frequency band corresponding to the Xth subframe at the Xth time in the different subframes at the N different times is smaller than the preset threshold, at the Xth time in the different subframes at the N different times Send the uplink service data corresponding to the uplink scheduling request message on the frequency band corresponding to the Xth subframe;

receiving a confirmation failure message that the uplink service data demodulation failed;

According to the confirmation failure message or the preset rule, determine a retransmission instruction; the retransmission instruction indicates the third subframe at the third moment, or indicates M different subframes at different moments;

Wherein, the third subframe at the third time is a subframe corresponding to any one of the different subframes at the N different times; the different subframes at the M different times are the N different times Any M different subframes at different times in the different subframes of M; the M is a positive integer greater than or equal to 2 and less than or equal to N; the X is a positive integer greater than or equal to 1 and less than or equal to N.

In the above scheme, the method also includes:

According to the retransmission instruction, the uplink service data corresponding to the uplink scheduling request message is retransmitted on each frequency band corresponding to Y different subframes at different times in the M different subframes at different times;

Wherein, the Y is a positive integer greater than or equal to 2 and less than or equal to M.

In the above solution, the uplink service data corresponding to the uplink scheduling request message is retransmitted on each frequency band corresponding to the Y subframes at different times in the M different subframes at different times, including:

When it is determined that the frequency band parameter values of the frequency bands corresponding to the frequency bands corresponding to the Y subframes at different times in the M different subframes at different times are all smaller than the preset threshold, the Y values in the different subframes at the M different times The uplink service data corresponding to the uplink scheduling request message is retransmitted on each frequency band corresponding to different subframes at different times.

In the above scheme, the method also includes:

According to the retransmission instruction, when it is determined that the frequency band parameter value of the frequency band corresponding to the first subframe at the first time in the different subframes at the M different times is smaller than the preset threshold, the difference between the M different times sending the uplink service data corresponding to the uplink scheduling request message on the frequency band corresponding to the first subframe at the first moment in the subframe;

According to the retransmission instruction, when it is determined that the frequency band parameter value of the frequency band corresponding to the first subframe at the first moment in the M different subframes at different times is greater than or equal to a preset threshold, determine the Whether the frequency band parameter value of the frequency band corresponding to the second subframe at the second moment in the different subframes is smaller than the preset threshold.

In the above scheme, the method also includes:

When the frequency band parameter value of the frequency band corresponding to the Xth subframe at the Xth time in the different subframes at the N different times is smaller than the preset threshold, at the Xth time in the different subframes at the N different times Send the uplink service data corresponding to the uplink scheduling request message on the frequency band corresponding to the Xth subframe;

receiving a confirmation success message that the uplink service data is successfully demodulated;

determining, according to the confirmation success message, the remaining N-X different subframes at different times among the N different subframes at different times;

Sending other uplink service data except the uplink service data corresponding to the uplink scheduling request message on the frequency bands corresponding to the remaining N-X different subframes at different times in the determined N different subframes at different times;

Wherein, the X is a positive integer greater than or equal to 1 and less than or equal to N-1.

An embodiment of the present invention further provides a base station, where the base station includes:

a first message receiving unit, configured to receive an uplink scheduling request message;

A grant signaling determination unit, configured to determine uplink scheduling grant signaling according to the uplink scheduling request message; wherein, the uplink scheduling grant signaling indicates N different subframes at different times; the N is a positive value greater than or equal to 2 integer;

A grant signaling sending unit, configured to send the uplink scheduling grant signaling.

In the above solution, the N different subframes at different times indicated in the uplink scheduling grant signaling correspond to the channels corresponding to the unlicensed spectrum in the long-term evolution system.

In the above solution, the frequency band corresponding to the uplink scheduling authorization signaling identifies itself as a frequency band on a licensed spectrum or a frequency band on an unlicensed spectrum.

In the above solution, the base station further includes: a demodulation unit and a demodulation result determination unit;

Wherein, the first message receiving unit is further configured to receive uplink service data;

the demodulation unit, configured to demodulate the uplink service data;

The demodulation result determination unit is configured to determine the demodulation result of the uplink service data.

In the above solution, the demodulation result determining unit is further configured to send a confirmation success message when it is determined that the uplink service data is successfully demodulated; and when it is determined that the uplink service data demodulation fails, send a confirmation failure message.

An embodiment of the present invention further provides a terminal, where the terminal includes:

a request message sending unit, configured to send an uplink scheduling request message;

A grant signaling receiving unit, configured to receive the uplink scheduling grant signaling determined according to the uplink scheduling request message; wherein, the uplink scheduling grant signaling indicates N different subframes at different times; the N is greater than or equal to A positive integer of 2.

In the above solution, the N different subframes at different times indicated in the uplink scheduling grant signaling correspond to the channels corresponding to the unlicensed spectrum in the long-term evolution system.

In the above solution, the terminal further includes: a first determining unit, a judging unit and a data sending unit; wherein,

the first determining unit, configured to determine the frequency band corresponding to the first subframe at the first moment in the different subframes at the N different moments;

the judging unit, configured to judge whether the frequency band parameter value of the frequency band corresponding to the first subframe at the first moment in the N different subframes at different times is smaller than a preset threshold;

The data sending unit is configured to, when the frequency band parameter value of the frequency band corresponding to the first subframe at the first time in the different subframes at the N different times is smaller than the preset threshold, the difference at the N different times is different. The uplink service data corresponding to the uplink scheduling request message is sent on the frequency band corresponding to the first subframe at the first moment in the subframe.

In the above solution, the terminal further includes: a second determining unit; wherein,

The second determination unit is configured to trigger the first subframe when it is determined that the frequency band parameter value of the frequency band corresponding to the first subframe at the first moment in the N different subframes at different times is greater than or equal to a preset threshold determine the unit; correspondingly,

The first determining unit is further configured to determine the frequency band corresponding to the second subframe at the second moment in the different subframes at the N different moments; correspondingly,

The judging unit is further configured to judge whether the frequency band parameter value of the frequency band corresponding to the second subframe at the second time in the N different subframes at different times is smaller than a preset threshold.

In the above solution, the terminal further includes: a third determining unit, a second message receiving unit and a fourth determining unit; wherein,

The third determining unit is configured to trigger the data sending unit when it is determined that the frequency band parameter value of the frequency band corresponding to the Xth subframe at the Xth time in the different subframes at the N different times is less than a preset threshold;

The data sending unit is further configured to send the uplink service data corresponding to the uplink scheduling request message on the frequency band corresponding to the Xth subframe at the Xth time in the different subframes at the N different times;

the second message receiving unit, configured to receive a confirmation failure message of the uplink service data demodulation failure;

The fourth determining unit is configured to determine a retransmission instruction according to the confirmation failure message or a preset rule; the retransmission instruction indicates the third subframe at a third moment, or indicates M different subframes at different moments ;

Wherein, the third subframe at the third time is a subframe corresponding to any one of the different subframes at the N different times; the different subframes at the M different times are the N different times Any M different subframes at different times in the different subframes of M; the M is a positive integer greater than or equal to 2 and less than or equal to N; the X is a positive integer greater than or equal to 1 and less than or equal to N.

In the above solution, the terminal further includes:

a first retransmission unit, configured to, according to the retransmission instruction, retransmit the uplink scheduling request message on each frequency band corresponding to Y different subframes at different times in the M different subframes at different times Corresponding uplink service data;

Wherein, the Y is a positive integer greater than or equal to 2 and less than or equal to M.

In the above solution, the first retransmission unit includes:

a first determination subunit, configured to trigger the retransmission subunit when the frequency band parameter values of the frequency bands corresponding to the frequency bands corresponding to the Y subframes at different times in the M different subframes at different times are all less than a preset threshold;

The first retransmission subunit is configured to retransmit the uplink service data corresponding to the uplink scheduling request message on each frequency band corresponding to the different subframes at Y different times in the M different subframes at different times.

In the above solution, the terminal further includes: a fifth determination unit and a sixth determination unit; wherein,

The judging unit is configured to judge, according to the retransmission instruction, whether the frequency band parameter value of the frequency band corresponding to the first subframe at the first moment in the M different subframes at different times is smaller than a preset threshold;

The fifth determining unit is configured to trigger the data sending unit when the frequency band parameter value of the frequency band corresponding to the first subframe at the first moment in the M different subframes at different times is less than a preset threshold;

the data sending unit, configured to send the uplink service data corresponding to the uplink scheduling request message on the frequency band corresponding to the first subframe at the first moment in the M different subframes at different times;

The sixth determination unit is configured to trigger the determination unit when the frequency band parameter value of the frequency band corresponding to the first subframe at the first moment of the M different subframes at different times is greater than or equal to a preset threshold;

Correspondingly, the judging unit is further configured to judge whether the frequency band parameter value of the frequency band corresponding to the second subframe at the second time in the M different subframes at different times is smaller than a preset threshold.

In the above solution, the terminal further includes: an eighth determining unit, a third message receiving unit and a seventh determining unit; wherein,

The eighth determining unit is configured to trigger the data sending unit when the frequency band parameter value of the frequency band corresponding to the Xth subframe at the Xth moment in the different subframes at the N different times is less than a preset threshold;

the data sending unit, configured to send the uplink service data corresponding to the uplink scheduling request message on the frequency band corresponding to the Xth subframe at the Xth time in the different subframes at the N different times;

the third message receiving unit, configured to receive a confirmation success message that the uplink service data is successfully demodulated;

the seventh determining unit, configured to determine, according to the confirmation success message, the remaining N-X different subframes at different times in the N different subframes at different times;

The data sending unit is further configured to send, on the frequency bands corresponding to the remaining N-X different subframes at different times in the determined N different subframes at different times, the uplink service excluding the uplink scheduling request message corresponding to the Other uplink service data other than data.

The uplink transmission method, base station, and terminal provided by the embodiments of the present invention use multiple uplink scheduling opportunities indicated in the uplink scheduling authorization signaling authorized by the base station, that is, multiple different subframes at different times, and the terminal uses the multiple uplink scheduling opportunities. The uplink scheduling opportunity detects the frequency band corresponding to each uplink scheduling opportunity. When the detected uplink scheduling opportunity meets the preset requirements, the terminal transmits the uplink service data on the frequency band corresponding to the uplink scheduling opportunity that meets the preset requirements. The purpose of detecting and monitoring the channel, so that when the LTE system is interfered in the unlicensed frequency band, that is, when the channel corresponding to the unlicensed frequency band of the pre-transmission uplink service data is occupied, the transmission in the occupied channel can be avoided. The upstream service data cannot effectively transmit the upstream service data.

Description of drawings

1 is a schematic diagram 1 of an implementation flow of an uplink transmission method according to an embodiment of the present invention;

FIG. 2 is a schematic diagram of the composition and structure of a base station according to an embodiment of the present invention;

3 is a schematic diagram 2 of an implementation flow of an uplink transmission method according to an embodiment of the present invention;

FIG. 4 is a schematic diagram of a composition structure of a terminal according to an embodiment of the present invention;

5 is a schematic flowchart 1 of a specific implementation of an uplink transmission method according to an embodiment of the present invention;

6 is a second schematic flowchart of a specific implementation of an uplink transmission method according to an embodiment of the present invention;

FIG. 7 is a schematic flowchart 3 of a specific implementation of an uplink transmission method according to an embodiment of the present invention;

FIG. 8 is a fourth schematic flowchart of a specific implementation of an uplink transmission method according to an embodiment of the present invention.

Detailed ways

In order to be able to understand the features and technical content of the present invention in more detail, the implementation of the present invention is described in detail below with reference to the accompanying drawings, which are for reference only and are not intended to limit the present invention.

Example 1

FIG. 1 is a schematic diagram 1 of an implementation flow of an uplink transmission method according to an embodiment of the present invention; as shown in FIG. 1 , the method is applied to the base station side; the method includes:

Step 101: Receive an uplink scheduling request message;

Step 102: Determine uplink scheduling grant signaling according to the uplink scheduling request message, and send the uplink scheduling grant signaling; wherein, the uplink scheduling grant signaling indicates N different subframes at different times; N is A positive integer greater than or equal to 2.

Here, the N different subframes at different times indicated in the uplink scheduling grant signaling correspond to the channel corresponding to the unlicensed spectrum in the LTE system.

Here, the uplink scheduling authorization signaling itself can identify whether the corresponding frequency band is on the licensed spectrum or the frequency band on the unlicensed spectrum; if the uplink scheduling request sent by the terminal to the base station occurs on the unlicensed spectrum, the base station The uplink scheduling authorization signaling sent to the terminal also occurs on the unlicensed spectrum; the base station can also indicate the terminal in the scheduling authorization signaling sent to the terminal according to the resource occupancy and the occupancy of resources in the unlicensed frequency band. Whether the secondary scheduling/traffic occurs on licensed or unlicensed bands.

In the above scheme, the method also includes:

Receive uplink service data;

demodulating the uplink service data;

A demodulation result of the uplink service data is determined.

In the above solution, the determining the demodulation result of the uplink service data includes:

When it is determined that the uplink service data is successfully demodulated, a confirmation success message is sent;

When it is determined that the demodulation of the uplink service data fails, a confirmation failure message is sent.

Here, after receiving the uplink scheduling request message sent by the terminal, the base station determines uplink scheduling grant signaling according to the uplink scheduling request message, indicates multiple uplink scheduling opportunities in the uplink scheduling grant signaling, and sends the uplink scheduling The scheduling grant signaling (UL Grant) is sent to the terminal, and the terminal detects the frequency band corresponding to the uplink scheduling opportunity according to the uplink scheduling grant signaling, and judges whether the uplink scheduling can be sent on the frequency band corresponding to the uplink scheduling opportunity The uplink service data corresponding to the request message; wherein, the uplink scheduling opportunity refers to a specific subframe at a specific time, therefore, the uplink scheduling grant signaling indicating different uplink scheduling opportunities refers to the uplink scheduling grant signaling Indicates different subframes at different times.

To implement the above method, an embodiment of the present invention further provides a base station. As shown in FIG. 2 , the base station includes:

a first message receiving unit 21, configured to receive an uplink scheduling request message;

The grant signaling determining unit 22 is configured to determine the uplink scheduling grant signaling according to the uplink scheduling request message; wherein, the uplink scheduling grant signaling indicates N different subframes at different times; the N is greater than or equal to 2 positive integer;

The grant signaling sending unit 23 is configured to send the uplink scheduling grant signaling.

In the above solution, the base station further includes: a demodulation unit 24 and a demodulation result determination unit 25;

Wherein, the first message receiving unit 21 is further configured to receive uplink service data;

the demodulation unit 24, configured to demodulate the uplink service data;

The demodulation result determining unit 25 is configured to determine the demodulation result of the uplink service data.

In the above solution, the demodulation result determining unit 25 is further configured to send a confirmation success message when it is determined that the uplink service data is successfully demodulated; and when it is determined that the uplink service data demodulation fails, send a confirmation failure message.

Embodiment 2

FIG. 3 is a schematic diagram 2 of an implementation flow of an uplink transmission method according to an embodiment of the present invention; as shown in FIG. 3 , the method is applied to the terminal side; the method includes:

Step 301: Send an uplink scheduling request message;

Step 302: Receive the uplink scheduling grant signaling determined according to the uplink scheduling request message; wherein the uplink scheduling grant signaling indicates N different subframes at different times; the N is a positive integer greater than or equal to 2.

In the above solution, the N different subframes at different times indicated in the uplink scheduling grant signaling correspond to the channels corresponding to the unlicensed spectrum in the long-term evolution system.

Here, the terminal sends an uplink scheduling request message to the base station, and the base station receives the uplink scheduling request message, determines uplink scheduling grant signaling according to the uplink scheduling request message, and indicates multiple uplink scheduling requests in the uplink scheduling grant signaling and send the uplink scheduling grant signaling (UL Grant) to the terminal, and the terminal receives the uplink scheduling grant signaling; the terminal detects the frequency band corresponding to the uplink scheduling opportunity according to the uplink scheduling grant signaling, and determine whether the uplink service data corresponding to the uplink scheduling request message can be sent on the frequency band corresponding to the uplink scheduling opportunity; wherein, the uplink scheduling opportunity refers to a specific subframe at a specific time. Therefore, the uplink scheduling The grant signaling indicating different uplink scheduling opportunities refers to that the uplink scheduling grant signaling indicates multiple different subframes at different times.

In the above scheme, the method also includes:

determining a frequency band corresponding to the first subframe at the first moment in the different subframes at the N different times;

judging whether the frequency band parameter value of the frequency band corresponding to the first subframe at the first moment in the different subframes at the N different times is smaller than a preset threshold;

If so, send the uplink service data corresponding to the uplink scheduling request message on the frequency band corresponding to the first subframe at the first moment in the different subframes at the N different times.

In the above scheme, the method also includes:

If the frequency band parameter value of the frequency band corresponding to the first subframe at the first time in the different subframes at the N different times is greater than or equal to the preset threshold, determine the second frequency band in the different subframes at the N different times The frequency band corresponding to the second subframe at the time is determined, and it is determined whether the frequency band parameter value of the frequency band corresponding to the second subframe at the second time among the different subframes at the second time is less than a preset threshold.

Here, the terminal sequentially determines the frequency bands of the N different subframes at different times indicated by the uplink scheduling grant signaling, sequentially detects the frequency bands of the N different subframes at different times, and sequentially determines the frequency bands of the N different times at different times. Whether the frequency band parameter value of the frequency band of different subframes exceeds the preset threshold, if so, it means that the subframe corresponding to the frequency band parameter value exceeding the preset threshold is busy, that is, the channel is busy at this time, and the frequency band parameter value exceeding the preset threshold cannot be used. The uplink service data corresponding to the uplink scheduling request message is transmitted on the subframe at the corresponding moment, therefore, continue to judge whether the frequency band parameter value of the frequency band corresponding to the subframe at the next moment exceeds a preset threshold;

Otherwise, it is explained that the subframe corresponding to the frequency band parameter value exceeding the preset threshold is idle, that is, the channel is idle at this time, and the uplink scheduling request message can be transmitted on the subframe corresponding to the time corresponding to the frequency band parameter value exceeding the preset threshold. The uplink service data; wherein, the frequency band parameter may be a noise floor parameter or other parameters on the frequency band.

Specifically, if the frequency band corresponding to the first subframe at the first moment in the N different subframes at different times detected by the terminal for the first time is busy and cannot perform data transmission, that is, the first detected channel is busy and cannot perform data transmission During transmission, the terminal performs the second detection, that is, detects the frequency band corresponding to the second subframe at the second moment in the N different subframes at different times, if the channel of the second detection is busy and still cannot perform data transmission , the terminal performs the third detection, that is, detects the frequency band corresponding to the third subframe at the third moment in the N different subframes at different times, and so on, until the terminal performs the Xth detection to determine the N When the frequency band corresponding to the X th subframe at the X th time among the different subframes at different times is idle, transmit the data on the frequency band corresponding to the X th subframe at the X th time among the N different subframes at different times. Up to the uplink service data corresponding to the uplink scheduling request message; wherein, the X is a positive integer greater than or equal to 1 and less than or equal to N.

In practical applications, if the frequency bands of different subframes detected by the terminal for N times at different times are all busy, that is, when the terminal fails to upload uplink service data successfully on multiple uplink scheduling opportunities allocated by the base station , the terminal abandons the pre-uploaded uplink service data corresponding to the uplink scheduling request message applied for this time.

In the above scheme, the method also includes:

When the frequency band parameter value of the frequency band corresponding to the Xth subframe at the Xth time in the different subframes at the N different times is smaller than the preset threshold, at the Xth time in the different subframes at the N different times Send the uplink service data corresponding to the uplink scheduling request message on the frequency band corresponding to the Xth subframe;

receiving a confirmation failure message that the uplink service data demodulation failed;

According to the confirmation failure message or the preset rule, determine a retransmission instruction; the retransmission instruction indicates the third subframe at the third moment, or indicates M different subframes at different moments;

Wherein, the third subframe at the third time is a subframe corresponding to any one of the different subframes at the N different times; the different subframes at the M different times are the N different times Any M different subframes at different times in the different subframes of M; the M is a positive integer greater than or equal to 2 and less than or equal to N; the X is a positive integer greater than or equal to 1 and less than or equal to N.

In the above scheme, the method also includes:

When the frequency band parameter value of the frequency band corresponding to the Xth subframe at the Xth time in the different subframes at the N different times is smaller than the preset threshold, at the Xth time in the different subframes at the N different times Send the uplink service data corresponding to the uplink scheduling request message on the frequency band corresponding to the Xth subframe;

receiving a confirmation success message that the uplink service data is successfully demodulated;

determining, according to the confirmation success message, the remaining N-X different subframes at different times among the N different subframes at different times;

Sending other uplink service data except the uplink service data corresponding to the uplink scheduling request message on the frequency bands corresponding to the remaining N-X different subframes at different times in the determined N different subframes at different times;

Wherein, the X is a positive integer greater than or equal to 1 and less than or equal to N-1.

Here, when the terminal detects in the Xth detection process that the frequency band parameter value of the frequency band corresponding to the Xth subframe at the Xth time in the N different subframes at different times is smaller than the preset threshold, that is, the N When the frequency band corresponding to the Xth subframe at the Xth time in the different subframes at different times is idle, the terminal is on the frequency band corresponding to the Xth subframe at the Xth time in the different subframes at the N different times. Send the uplink service data corresponding to the uplink scheduling request message; at this time, if the uplink service data uploaded by the terminal on the frequency band corresponding to the Xth subframe at the Xth time in the different subframes at different times of the N is deleted by the base station It is detected that the base station feeds back an indication of whether the transmission is successful to the terminal according to the current transmission time slot, that is, the base station sends an acknowledgement character (ACK) message to the terminal according to the current transmission time slot, that is, an acknowledgement success message, or sends a non-acknowledgement character (NACK) message. That is, the acknowledgment failure message.

In the above scheme, the method also includes:

According to the retransmission instruction, the uplink service data corresponding to the uplink scheduling request message is retransmitted on each frequency band corresponding to Y different subframes at different times in the M different subframes at different times;

Wherein, the Y is a positive integer greater than or equal to 2 and less than or equal to M.

In the above solution, the uplink service data corresponding to the uplink scheduling request message is retransmitted on each frequency band corresponding to the Y subframes at different times in the M different subframes at different times, including:

When it is determined that the frequency band parameter values of the frequency bands corresponding to the frequency bands corresponding to the Y subframes at different times in the M different subframes at different times are all smaller than the preset threshold, the Y values in the different subframes at the M different times The uplink service data corresponding to the uplink scheduling request message is retransmitted on each frequency band corresponding to different subframes at different times.

In the above scheme, the method also includes:

According to the retransmission instruction, determine whether the frequency band parameter value of the frequency band corresponding to the first subframe at the first moment in the M different subframes at different times is smaller than a preset threshold;

If so, send the uplink service data corresponding to the uplink scheduling request message on the frequency band corresponding to the first subframe at the first moment in the M different subframes at different times;

Otherwise, it is determined whether the frequency band parameter value of the frequency band corresponding to the second subframe at the second time in the M different subframes at different times is smaller than the preset threshold.

In practical applications, if the detection is successful but the transmission fails, that is, the terminal detects the frequency band parameter value of the frequency band corresponding to the Xth subframe at the Xth time in the different subframes at the Xth time in the Xth detection process. When it is less than the preset threshold, that is, the frequency band corresponding to the Xth subframe at the Xth time in the different subframes at the N different times is idle. At this time, the terminal is in the N different subframes at different times. The uplink service data corresponding to the uplink scheduling request message is sent on the frequency band corresponding to the Xth subframe at the Xth time in the base station; the base station detects the uplink service data sent by the terminal, and demodulates the uplink data service, But the demodulation fails. At this time, the base station sends a NACK message to the terminal, that is, an acknowledgement failure message. At this time, the terminal determines a retransmission instruction according to the NACK message or a preset rule to retransmit the uplink service data; here, the NACK message can carry one uplink scheduling opportunity or multiple uplink scheduling opportunities, and the uplink scheduling opportunity carried in the NACK message is one or any of the uplink scheduling opportunities allocated by the base station for the current uplink scheduling request of the terminal. indivual.

Because the terminal in this embodiment of the present invention will detect the state of the channel when sending uplink data, that is, whether the detection signal is idle or busy, it is ensured that the uplink data is sent when the channel is idle. Before-Talk) mechanism to ensure that the terminal in the LTE technology will not interfere with other technologies running on the unlicensed spectrum when sending the uplink service data, for example, it will not interfere with the wifi signal running on the unlicensed spectrum , therefore, the embodiment of the present invention can avoid the interference of other technologies operating on the unlicensed frequency spectrum to the LTE system, and also avoid the interference of the LTE system to other technologies.

To implement the above method, an embodiment of the present invention further provides a terminal. As shown in FIG. 4 , the terminal includes:

a request message sending unit 41, configured to send an uplink scheduling request message;

The grant signaling receiving unit 42 is configured to receive the uplink scheduling grant signaling determined according to the uplink scheduling request message; wherein, the uplink scheduling grant signaling indicates N different subframes at different times; the N is greater than A positive integer equal to 2.

In the above solution, the terminal further includes: a first determining unit, a judging unit and a data sending unit; wherein,

the first determining unit, configured to determine the frequency band corresponding to the first subframe at the first moment in the different subframes at the N different moments;

the judging unit, configured to judge whether the frequency band parameter value of the frequency band corresponding to the first subframe at the first moment in the N different subframes at different times is smaller than a preset threshold;

The data sending unit is configured to, when the frequency band parameter value of the frequency band corresponding to the first subframe at the first time in the different subframes at the N different times is smaller than the preset threshold, the difference at the N different times is different. The uplink service data corresponding to the uplink scheduling request message is sent on the frequency band corresponding to the first subframe at the first moment in the subframe.

In the above solution, the terminal further includes: a second determining unit; wherein,

The second determination unit is configured to trigger the first subframe when it is determined that the frequency band parameter value of the frequency band corresponding to the first subframe at the first moment in the N different subframes at different times is greater than or equal to a preset threshold determine the unit; correspondingly,

The first determining unit is further configured to determine the frequency band corresponding to the second subframe at the second moment in the different subframes at the N different moments; correspondingly,

The judging unit is further configured to judge whether the frequency band parameter value of the frequency band corresponding to the second subframe at the second time in the N different subframes at different times is smaller than a preset threshold.

In the above solution, the terminal further includes: a third determining unit, a second message receiving unit and a fourth determining unit; wherein,

The third determining unit is configured to trigger the data sending unit when it is determined that the frequency band parameter value of the frequency band corresponding to the Xth subframe at the Xth time in the different subframes at the N different times is less than a preset threshold;

The data sending unit is further configured to send the uplink service data corresponding to the uplink scheduling request message on the frequency band corresponding to the Xth subframe at the Xth time in the different subframes at the N different times;

the second message receiving unit, configured to receive a confirmation failure message of the uplink service data demodulation failure;

The fourth determining unit is configured to determine a retransmission instruction according to the confirmation failure message or a preset rule; the retransmission instruction indicates the third subframe at a third moment, or indicates M different subframes at different moments ;

Wherein, the third subframe at the third time is a subframe corresponding to any one of the different subframes at the N different times; the different subframes at the M different times are the N different times Any M different subframes at different times in the different subframes of M; the M is a positive integer greater than or equal to 2 and less than or equal to N; the X is a positive integer greater than or equal to 1 and less than or equal to N.

In the above solution, the terminal further includes:

a first retransmission unit, configured to, according to the retransmission instruction, retransmit the uplink scheduling request message on each frequency band corresponding to Y different subframes at different times in the M different subframes at different times Corresponding uplink service data;

Wherein, the Y is a positive integer greater than or equal to 2 and less than or equal to M.

In the above solution, the first retransmission unit includes:

a first determination subunit, configured to trigger the retransmission subunit when the frequency band parameter values of the frequency bands corresponding to the frequency bands corresponding to the Y subframes at different times in the M different subframes at different times are all less than a preset threshold;

The first retransmission subunit is configured to retransmit the uplink service data corresponding to the uplink scheduling request message on each frequency band corresponding to the different subframes at Y different times in the M different subframes at different times.

In the above solution, the terminal further includes: a fifth determination unit and a sixth determination unit; wherein,

The judging unit is configured to judge, according to the retransmission instruction, whether the frequency band parameter value of the frequency band corresponding to the first subframe at the first moment in the M different subframes at different times is smaller than a preset threshold;

The fifth determining unit is configured to trigger the data sending unit when the frequency band parameter value of the frequency band corresponding to the first subframe at the first moment in the M different subframes at different times is less than a preset threshold;

the data sending unit, configured to send the uplink service data corresponding to the uplink scheduling request message on the frequency band corresponding to the first subframe at the first moment in the M different subframes at different times;

The sixth determination unit is configured to trigger the determination unit when the frequency band parameter value of the frequency band corresponding to the first subframe at the first moment of the M different subframes at different times is greater than or equal to a preset threshold;

Correspondingly, the judging unit is further configured to judge whether the frequency band parameter value of the frequency band corresponding to the second subframe at the second time in the M different subframes at different times is smaller than a preset threshold.

In the above solution, the terminal further includes: an eighth determining unit, a third message receiving unit and a seventh determining unit; wherein,

The eighth determining unit is configured to trigger the data sending unit when the frequency band parameter value of the frequency band corresponding to the Xth subframe at the Xth moment in the different subframes at the N different times is less than a preset threshold;

the data sending unit, configured to send the uplink service data corresponding to the uplink scheduling request message on the frequency band corresponding to the Xth subframe at the Xth time in the different subframes at the N different times;

the third message receiving unit, configured to receive a confirmation success message that the uplink service data is successfully demodulated;

the seventh determining unit, configured to determine, according to the confirmation success message, the remaining N-X different subframes at different times in the N different subframes at different times;

The data sending unit is further configured to send, on the frequency bands corresponding to the remaining N-X different subframes at different times in the determined N different subframes at different times, the uplink service excluding the uplink scheduling request message corresponding to the Other uplink service data other than data.

Embodiment 3

After receiving the uplink scheduling authorization signaling sent by the base station, the terminal performs uplink channel detection according to the uplink scheduling opportunity indicated by the uplink scheduling authorization signaling, so as to lay a foundation for sending uplink service data; wherein, the uplink scheduling opportunities include N , that is, N different subframes at different times; the N is a positive integer greater than or equal to 2; after the terminal performs N times of detection, it is found that the interference in the channel to be transmitted is relatively large or the noise floor is relatively high, that is, it is considered that N times of uplink scheduling If the channels of the opportunity are all busy and cannot perform data transmission, the terminal abandons the current uplink scheduling request after the Nth detection.

FIG. 5 is a schematic flow chart 1 of a specific implementation of an uplink transmission method according to an embodiment of the present invention; when the terminal fails to detect multiple times, that is, the terminal detects that the uplink scheduling grant signaling sent by the base station corresponds to N different subframes at different times. When the frequency bands of the 2 are busy, the terminal cannot send the uplink service data, and abandons this uplink scheduling request; as shown in Figure 5, the specific steps include:

Step 501: the terminal sends an uplink scheduling request message to the base station;

Step 502: The base station receives the uplink scheduling request message, determines uplink scheduling grant signaling according to the uplink scheduling request message, and sends the uplink scheduling grant signaling to the terminal;

Wherein, the uplink scheduling grant signaling indicates N uplink scheduling opportunities, that is, N different subframes at different times; the N is a positive integer greater than or equal to 2.

Step 503: The terminal receives the uplink scheduling authorization signaling, and detects the channel corresponding to the uplink scheduling opportunity according to the uplink scheduling opportunity indicated by the uplink scheduling authorization signaling; if the detected channel corresponding to the uplink scheduling opportunity satisfies request, then send the uplink service data corresponding to the uplink scheduling request message on the subframe of the grant time corresponding to the uplink scheduling opportunity; if the detected channel corresponding to the uplink scheduling opportunity cannot meet the requirements, The channel corresponding to the next uplink scheduling opportunity of the opportunity is detected;

specifically,

Step 503A: The terminal detects the frequency band corresponding to the i-th subframe at the i-th time in the N different subframes at different times indicated by the uplink scheduling grant signaling;

Step 503B: Determine whether the frequency band parameter value of the frequency band corresponding to the i-th subframe at the i-th time in the N different subframes at different times is smaller than a preset threshold; if so, execute step 503C; otherwise, execute after i+1 Step 503B;

Step 503C: Send the uplink service data corresponding to the uplink scheduling request message on the frequency band corresponding to the i-th subframe at the i-th time in different subframes at the N different times.

Here, the value of i starts from 1, until the i-th subframe at the i-th time in step 503B is the N-th subframe at the N-th time, that is, it is determined in step 503B that among the different subframes at the N different times Whether the frequency band parameter value of the frequency band corresponding to the Nth subframe at the Nth time is less than the preset threshold;

If so, send the uplink service data corresponding to the uplink scheduling request message on the frequency band corresponding to the Nth subframe at the Nth time in the different subframes at the N different times;

Otherwise, the terminal ends the current uplink scheduling request.

Step 504: When the channel corresponding to the N times of uplink scheduling opportunities indicated by the uplink scheduling authorization signaling detected by the terminal cannot meet the requirements, the terminal stops detecting the channel and abandons this uplink scheduling request; The terminal re-sends an uplink scheduling request message to the base station.

Embodiment 4

After receiving the uplink scheduling authorization signaling sent by the base station, the terminal performs uplink channel detection according to the uplink scheduling opportunity indicated by the uplink scheduling authorization signaling, so as to lay a foundation for sending uplink service data; wherein, the uplink scheduling opportunities include N , that is, N different subframes at different times; the N is a positive integer greater than or equal to 2; after the terminal performs X (X<N) times of detection, and finds that the channel to be transmitted in the X-th detection is idle, then the performing uplink service data transmission on the Xth uplink scheduling opportunity indicated by the scheduling authorization signaling; after receiving the uplink service data transmitted on the Xth uplink scheduling opportunity, the base station demodulates the uplink service data, A demodulation success message, that is, an ACK message, is sent to the terminal.

FIG. 6 is a second schematic flowchart of a specific implementation of an uplink transmission method according to an embodiment of the present invention; when the terminal determines after the Xth detection that the channel corresponding to the uplink scheduling opportunity of the Xth detection is idle, in the Xth detection The uplink service data is sent on the channel corresponding to the uplink scheduling opportunity. After receiving the uplink service data, the base station demodulates the uplink service data, and the demodulation is successful, and sends the demodulation success message, that is, the ACK message to the terminal; as shown in Figure 6, the specific steps include:

Step 601: The terminal sends an uplink scheduling request message to the base station;

Step 602: The base station receives the uplink scheduling request message, determines uplink scheduling grant signaling according to the uplink scheduling request message, and sends the uplink scheduling grant signaling to the terminal;

Wherein, the uplink scheduling grant signaling indicates N uplink scheduling opportunities, that is, N different subframes at different times; the N is a positive integer greater than or equal to 2.

Step 603: The terminal receives the uplink scheduling authorization signaling, and detects the channel corresponding to the uplink scheduling opportunity according to the uplink scheduling opportunity indicated by the uplink scheduling authorization signaling; if the detected channel corresponding to the uplink scheduling opportunity satisfies request, then send the uplink service data corresponding to the uplink scheduling request message on the subframe of the grant time corresponding to the uplink scheduling opportunity; if the detected channel corresponding to the uplink scheduling opportunity cannot meet the requirements, The channel corresponding to the next uplink scheduling opportunity of the opportunity is detected;

specifically,

Step 603A: The terminal detects the frequency band corresponding to the i-th subframe at the i-th time in the N different subframes at different times indicated by the uplink scheduling grant signaling;

Step 603B: Determine whether the frequency band parameter value of the frequency band corresponding to the i-th subframe at the i-th time in the N different subframes at different times is smaller than a preset threshold; if so, execute step 603C; otherwise, execute after i+1 Step 603B;

Step 603C: Send the uplink service data corresponding to the uplink scheduling request message on the frequency band corresponding to the i-th subframe at the i-th time in different subframes at the N different times.

Here, the value of i starts from 1, and when the i-th subframe at the i-th moment in step 603B is the X-th subframe at the X-th moment, the value of the X-th moment in the different subframes at different times of the N is The frequency band parameter value of the frequency band corresponding to the X th subframe is less than the preset threshold, then the uplink scheduling request message is sent on the frequency band corresponding to the X th subframe at the X th time in different subframes at different times of the N the uplink service data;

Here, the X is a positive integer greater than or equal to 1 and less than or equal to N.

Step 604: The base station receives the uplink service data sent on the frequency band corresponding to the Xth subframe at the Xth time in the N different subframes at different times, demodulates the uplink service data, and sends the data to the base station after the demodulation is successful. The terminal sends a demodulation success message, that is, an ACK message.

Embodiment 5

After receiving the uplink scheduling authorization signaling sent by the base station, the terminal performs uplink channel detection according to the uplink scheduling opportunity indicated by the uplink scheduling authorization signaling, so as to lay a foundation for sending uplink service data; wherein, the uplink scheduling opportunities include N , that is, N different subframes at different times; the N is a positive integer greater than or equal to 2; after the terminal performs X (X<N) times of detection, and finds that the channel to be transmitted in the X-th detection is idle, then the performing uplink service data transmission on the Xth uplink scheduling opportunity indicated by the scheduling authorization signaling; after receiving the uplink service data transmitted on the Xth uplink scheduling opportunity, the base station demodulates the uplink service data, A demodulation failure message, that is, a NACK message, is sent to the terminal; the terminal determines a retransmission instruction according to the NACK message or a preset rule to retransmit the uplink service data.

FIG. 7 is a schematic flow chart 3 of a specific implementation of an uplink transmission method according to an embodiment of the present invention; when the terminal determines after the Xth detection that the channel corresponding to the uplink scheduling opportunity of the Xth detection is idle, the The uplink service data is sent on the channel corresponding to the uplink scheduling opportunity. After receiving the uplink service data, the base station demodulates the uplink service data, but the demodulation fails. The base station sends the demodulation failure message as The NACK message is sent to the terminal, and the terminal determines the retransmission instruction to retransmit the uplink service data according to the NACK message or the preset rule; as shown in FIG. 7 , the specific steps include:

Step 701: The terminal sends an uplink scheduling request message to the base station;

Step 702: The base station receives the uplink scheduling request message, determines uplink scheduling grant signaling according to the uplink scheduling request message, and sends the uplink scheduling grant signaling to the terminal;

Wherein, the uplink scheduling grant signaling indicates N uplink scheduling opportunities, that is, N different subframes at different times; the N is a positive integer greater than or equal to 2.

Step 703: The terminal receives the uplink scheduling grant signaling, and detects the channel corresponding to the uplink scheduling opportunity according to the uplink scheduling opportunity indicated by the uplink scheduling grant signaling; if the detected channel corresponding to the uplink scheduling opportunity satisfies request, then send the uplink service data corresponding to the uplink scheduling request message on the subframe of the grant time corresponding to the uplink scheduling opportunity; if the detected channel corresponding to the uplink scheduling opportunity cannot meet the requirements, The channel corresponding to the next uplink scheduling opportunity of the opportunity is detected;

specifically,

Step 703A: The terminal detects the frequency band corresponding to the i-th subframe at the i-th time in the N different subframes at different times indicated by the uplink scheduling grant signaling;

Step 703B: Determine whether the frequency band parameter value of the frequency band corresponding to the i-th subframe at the i-th time in the N different subframes at different times is smaller than a preset threshold; if so, execute step 703C; otherwise, execute after i+1 Step 703B;

Step 703C: Send the uplink service data corresponding to the uplink scheduling request message on the frequency band corresponding to the i-th subframe at the i-th time in different subframes at the N different times.

Here, the value of i starts from 1. When the i-th subframe at the i-th moment in step 703B is the X-th subframe at the X-th moment, the value of the X-th moment in the different subframes at the N different moments is the The frequency band parameter value of the frequency band corresponding to the X th subframe is less than the preset threshold, then the uplink scheduling request message is sent on the frequency band corresponding to the X th subframe at the X th time in different subframes at different times of the N the uplink service data;

Here, the X is a positive integer greater than or equal to 1 and less than or equal to N.

Step 704: The base station receives the uplink service data sent on the frequency band corresponding to the Xth subframe at the Xth time in the different subframes at the N different times, and demodulates the uplink service data, but after the demodulation fails, sending a demodulation failure message, that is, a NACK message, to the terminal;

Step 705: After receiving the NACK message sent by the base station, the terminal determines a retransmission instruction according to the NACK message or a preset rule; the retransmission instruction indicates the third subframe at the third time, or indicates M different subframes at different times;

Here, determining the retransmission instruction according to the NACK message or the preset rule includes:

Determine a retransmission instruction according to the explicit information, implicit information in the NACK message, or a preset specific subframe at a specific time;

Alternatively, the retransmission instruction is determined according to a preset rule in the agreement between the base station and the terminal.

Here, the retransmission instruction indicates one retransmission opportunity, that is, indicates the third subframe at the third moment; or indicates multiple retransmission opportunities, that is, indicates M different subframes at different moments;

Wherein, the third subframe at the third time is a subframe corresponding to any one of the different subframes at the N different times; the different subframes at the M different times are the N different times Any M different subframes at different times in the different subframes of M; the M is a positive integer greater than or equal to 2 and less than or equal to N; the X is a positive integer greater than or equal to 1 and less than or equal to N.

Here, in the actual application process, the terminal detects the frequency band corresponding to the i-th subframe at the i-th time in the N different subframes at different times in the same process, that is, in the first process. When the terminal fails to transmit in the first process, that is, the terminal uploads the uplink service data, but the base station cannot correctly demodulate the uplink service data, the terminal needs to retransmit the uplink service data; the terminal re-uploads the uplink service data. The retransmission opportunity indicated in the retransmission instruction is performed in the second process, that is, in the next process of the first process; and the retransmission opportunity is the uplink scheduling grant sent by the base station in the first process One or any of the uplink scheduling opportunities indicated by the signaling.

specifically,

When the retransmission instruction indicates a retransmission opportunity, that is, the retransmission instruction indicates the third subframe at the third moment, the uplink scheduling request is retransmitted on the frequency band corresponding to the third subframe at the third moment Uplink service data corresponding to the message;

When the retransmission instruction indicates multiple retransmission opportunities, that is, the retransmission instruction indicates M different subframes at different times, at this time, the terminal can detect the channel corresponding to the retransmission opportunity according to the retransmission instruction, and detect the channel When the quality meets the requirements, retransmission of the uplink service data is performed; the base station receives the uplink service data according to the opportunity that the terminal can transmit multiple times;

When the retransmission instruction indicates multiple retransmission opportunities, that is, the retransmission instruction indicates M different subframes at different times, at this time, the terminal can detect the channel corresponding to the retransmission opportunity according to the retransmission instruction, and determine the When the frequency band parameter values of the frequency bands corresponding to the frequency bands corresponding to the Y subframes at different times in the M different subframes at different times are all smaller than the preset threshold, at the Y different times in the different subframes at the M different times The uplink service data corresponding to the uplink scheduling request message is retransmitted on each frequency band corresponding to the different subframes of the UL; wherein, the Y is a positive integer greater than or equal to 2 and less than or equal to M; the base station may retransmit more The uplink service data is received multiple times on the second retransmission opportunity. In this way, the probability of the base station receiving uplink service data can be improved.

Here, the detection process of the retransmission opportunity in the retransmission instruction is similar to the detection process in step 503, and thus will not be repeated here.

Step 706: the base station receives the uplink service data retransmitted by the terminal on the retransmission opportunity, and demodulates the uplink service data; and sends the demodulation result to the terminal;

Specifically, when the base station successfully demodulates the uplink service data, it sends an ACK message to the terminal;

When the base station fails to demodulate the uplink service data, it sends a NACK message to the terminal;

After receiving the NACK message, the terminal performs step 705 again to retransmit the uplink data service.

Embodiment 6

The terminal uses multiple uplink scheduling opportunities allocated by the base station to upload other uplink service data.

FIG. 8 is a fourth schematic flowchart of a specific implementation of an uplink transmission method according to an embodiment of the present invention. As shown in FIG. 8 , the method includes:

Step 801: The terminal sends an uplink scheduling request message to the base station;

Step 802: The base station receives the uplink scheduling request message, determines uplink scheduling grant signaling according to the uplink scheduling request message, and sends the uplink scheduling grant signaling to the terminal;

Wherein, the uplink scheduling grant signaling indicates N uplink scheduling opportunities, that is, N different subframes at different times; the N is a positive integer greater than or equal to 2.

Step 803: The terminal receives the uplink scheduling grant signaling, and detects the channel corresponding to the uplink scheduling opportunity according to the uplink scheduling opportunity indicated by the uplink scheduling grant signaling; if the detected channel corresponding to the uplink scheduling opportunity satisfies request, then send the uplink service data corresponding to the uplink scheduling request message on the subframe of the grant time corresponding to the uplink scheduling opportunity; if the detected channel corresponding to the uplink scheduling opportunity cannot meet the requirements, The channel corresponding to the next uplink scheduling opportunity of the opportunity is detected;

specifically,

Step 803A: The terminal detects the frequency band corresponding to the i-th subframe at the i-th time in the N different subframes at different times indicated by the uplink scheduling grant signaling;

Step 803B: Determine whether the frequency band parameter value of the frequency band corresponding to the i-th subframe at the i-th time in the N different subframes at different times is smaller than a preset threshold; if so, execute step 803C; otherwise, execute after i+1 Step 803B;

Step 803C: Send the uplink service data corresponding to the uplink scheduling request message on the frequency band corresponding to the i-th subframe at the i-th time in different subframes at the N different times.

Here, the value of i starts from 1, and when the i-th subframe at the i-th moment in step 803B is the X-th subframe at the X-th moment, the value of the X-th moment in the different subframes at different times of the N is The frequency band parameter value of the frequency band corresponding to the X th subframe is less than the preset threshold, then the uplink scheduling request message is sent on the frequency band corresponding to the X th subframe at the X th time in different subframes at different times of the N the uplink service data;

Here, the X is a positive integer greater than or equal to 1 and less than or equal to N.

At this time, the N uplink scheduling opportunities indicated by the uplink scheduling authorization signaling of the base station are not all used, and N-X uplink scheduling opportunities remain. At this time, the terminal can use its own buffer (buffer) to use the remaining N-X uplink scheduling Scheduling opportunities.

Step 804: The base station detects the frequency band corresponding to any i-th uplink scheduling opportunity in the remaining N-X uplink scheduling opportunities, and determines that when the frequency band parameter of the frequency band corresponding to the i-th uplink scheduling opportunity is less than the preset threshold, the i-th uplink scheduling opportunity The other uplink service data except the uplink service data corresponding to the uplink scheduling request message is sent on the frequency band corresponding to the opportunity.

The above descriptions are merely preferred embodiments of the present invention, and are not intended to limit the protection scope of the present invention.

Claims (26)

1. An uplink transmission method is characterized in that the method is applied to a base station side; the method comprises the following steps:

receiving an uplink scheduling request message;

determining an uplink scheduling authorization signaling according to the uplink scheduling request message, and sending the uplink scheduling authorization signaling; wherein, the uplink scheduling authorization signaling indicates N different sub-frames at different time; n is a positive integer greater than or equal to 2; the frequency band corresponding to the uplink scheduling authorization signaling identifier is a frequency band on an authorized frequency spectrum or a frequency band on an unauthorized frequency spectrum; and the uplink scheduling authorization signaling is used for the terminal to detect a frequency band corresponding to the uplink scheduling opportunity corresponding to the uplink scheduling authorization signaling and transmit uplink service data on the detected frequency band corresponding to the uplink scheduling opportunity meeting the preset requirement.

2. The method according to claim 1, wherein different subframes at N different times indicated in the uplink scheduling grant signaling correspond to channels corresponding to unlicensed spectrum in a long term evolution system.

3. The method according to claim 1 or 2, characterized in that the method further comprises:

receiving uplink service data;

demodulating the uplink service data;

and determining a demodulation result of the uplink service data.

4. The method of claim 3, wherein the determining the demodulation result of the uplink traffic data comprises:

when the uplink service data is determined to be successfully demodulated, sending a confirmation success message;

and when determining that the uplink service data is failed to be demodulated, sending a confirmation failure message.

5. An uplink transmission method, wherein the method is applied to a terminal side; the method comprises the following steps:

sending an uplink scheduling request message;

receiving an uplink scheduling authorization signaling determined according to the uplink scheduling request message; wherein, the uplink scheduling authorization signaling indicates N different sub-frames at different time; n is a positive integer greater than or equal to 2; the uplink scheduling authorization signaling identifies whether the frequency band corresponding to the base station side is a frequency band on an authorized frequency spectrum or a frequency band on an unauthorized frequency spectrum;

and detecting a frequency band corresponding to the uplink scheduling opportunity corresponding to the uplink scheduling authorization signaling, and transmitting uplink service data on the detected frequency band corresponding to the uplink scheduling opportunity meeting the preset requirement.

6. The method according to claim 5, wherein different subframes at N different times indicated in the uplink scheduling grant signaling correspond to channels corresponding to unlicensed spectrum in a long term evolution system.

7. The method according to claim 5 or 6, wherein the detecting a frequency band corresponding to an uplink scheduling opportunity corresponding to the uplink scheduling grant signaling, and transmitting uplink service data on the detected frequency band corresponding to the uplink scheduling opportunity meeting the preset requirement includes:

determining a frequency band corresponding to a first subframe at a first moment in different subframes of the N different moments;

and when the frequency band parameter value of the frequency band corresponding to the first subframe at the first moment in the N different subframes at different moments is determined to be smaller than a preset threshold value, sending the uplink service data corresponding to the uplink scheduling request message on the frequency band corresponding to the first subframe at the first moment in the N different subframes at different moments.

8. The method of claim 7, further comprising:

when the frequency band parameter value of the frequency band corresponding to the first sub-frame at the first moment in the different sub-frames at the N different moments is larger than or equal to a preset threshold value, determining the frequency band corresponding to the second sub-frame at the second moment in the different sub-frames at the N different moments, and judging whether the frequency band parameter value of the frequency band corresponding to the second sub-frame at the second moment in the different sub-frames at the N different moments is smaller than the preset threshold value.

9. The method of claim 8, further comprising:

when the frequency band parameter value of the frequency band corresponding to the Xth sub-frame at the Xth sub-frame in the different sub-frames at the N different moments is smaller than a preset threshold value, sending the uplink service data corresponding to the uplink scheduling request message on the frequency band corresponding to the Xth sub-frame at the Xth sub-frame in the different sub-frames at the N different moments;

receiving a failure confirmation message of the uplink service data demodulation failure;

determining a retransmission instruction according to the confirmation failure message or a preset rule; the retransmission instruction indicates a third subframe at a third moment or indicates M different subframes at different moments;

a third subframe of the third time is a subframe corresponding to any one of the N different subframes at different times; the M different sub-frames at different moments are any M different sub-frames at different moments in the N different sub-frames at different moments; m is a positive integer which is more than or equal to 2 and less than or equal to N; and X is a positive integer which is greater than or equal to 1 and less than or equal to N.

10. The method of claim 9, further comprising:

according to the retransmission instruction, retransmitting the uplink service data corresponding to the uplink scheduling request message on each frequency band corresponding to Y different sub-frames at different times in the M different sub-frames at different times;

wherein Y is a positive integer of 2-M.

11. The method according to claim 10, wherein the retransmitting the uplink traffic data corresponding to the uplink scheduling request message on each frequency band corresponding to Y different subframes at different times among the M different time instants, comprises:

and when determining that the frequency band parameter values of the frequency bands corresponding to the different sub-frames at the Y different moments in the different sub-frames at the M different moments are all smaller than a preset threshold value, retransmitting the uplink service data corresponding to the uplink scheduling request message on each frequency band corresponding to the different sub-frames at the Y different moments in the different sub-frames at the M different moments.

12. The method of claim 9, further comprising:

according to the retransmission instruction, when determining that a frequency band parameter value of a frequency band corresponding to a first subframe at a first moment in the M different subframes at different moments is smaller than a preset threshold value, sending uplink service data corresponding to the uplink scheduling request message on the frequency band corresponding to the first subframe at the first moment in the M different subframes at different moments;

and according to the retransmission instruction, when the frequency band parameter value of the frequency band corresponding to the first subframe at the first moment in the different subframes at the M different moments is determined to be larger than or equal to a preset threshold value, judging whether the frequency band parameter value of the frequency band corresponding to the second subframe at the second moment in the different subframes at the M different moments is smaller than the preset threshold value.

13. The method of claim 8, further comprising:

when the frequency band parameter value of the frequency band corresponding to the Xth sub-frame at the Xth sub-frame in the different sub-frames at the N different moments is smaller than a preset threshold value, sending the uplink service data corresponding to the uplink scheduling request message on the frequency band corresponding to the Xth sub-frame at the Xth sub-frame in the different sub-frames at the N different moments;

receiving a successful confirmation message of successful demodulation of the uplink service data;

determining the remaining N-X different sub-frames at different moments in the N different sub-frames at different moments according to the confirmation success message;

sending other uplink service data except the uplink service data corresponding to the uplink scheduling request message on the frequency bands corresponding to the remaining N-X different sub-frames at different moments in the N different sub-frames at different moments;

wherein X is a positive integer which is greater than or equal to 1 and less than or equal to N-1.

14. A base station, characterized in that the base station comprises:

a first message receiving unit, configured to receive an uplink scheduling request message;

an authorization signaling determining unit, configured to determine an uplink scheduling authorization signaling according to the uplink scheduling request message; wherein, the uplink scheduling authorization signaling indicates N different sub-frames at different time; n is a positive integer greater than or equal to 2; the frequency band corresponding to the uplink scheduling authorization signaling identifier is a frequency band on an authorized frequency spectrum or a frequency band on an unauthorized frequency spectrum; the uplink scheduling authorization signaling is used for the terminal to detect a frequency band corresponding to an uplink scheduling opportunity corresponding to the uplink scheduling authorization signaling and transmit uplink service data on the detected frequency band corresponding to the uplink scheduling opportunity meeting the preset requirement;

and the authorization signaling sending unit is used for sending the uplink scheduling authorization signaling.

15. The base station of claim 14, wherein different subframes at N different times indicated in the uplink scheduling grant signaling correspond to channels corresponding to unlicensed spectrum in a long term evolution system.

16. The base station according to claim 14 or 15, characterized in that the base station further comprises: a demodulation unit and a demodulation result determination unit;

the first message receiving unit is further configured to receive uplink service data;

the demodulation unit is configured to demodulate the uplink service data;

and the demodulation result determining unit is used for determining the demodulation result of the uplink service data.

17. The base station of claim 16, wherein the demodulation result determining unit is further configured to send an acknowledgement message when determining that the uplink service data is successfully demodulated; and when determining that the uplink service data is failed to be demodulated, sending a confirmation failure message.

18. A terminal, characterized in that the terminal comprises:

a request message sending unit, configured to send an uplink scheduling request message;

an authorization signaling receiving unit, configured to receive an uplink scheduling authorization signaling determined according to the uplink scheduling request message; wherein, the uplink scheduling authorization signaling indicates N different sub-frames at different time; n is a positive integer greater than or equal to 2; the uplink scheduling authorization signaling identifies whether the frequency band corresponding to the base station side is a frequency band on an authorized frequency spectrum or a frequency band on an unauthorized frequency spectrum;

a judging unit, configured to judge whether a frequency band corresponding to an uplink scheduling opportunity corresponding to the uplink scheduling grant signaling meets a preset requirement;

and the data sending unit is used for transmitting the uplink service data on the frequency band corresponding to the uplink scheduling opportunity meeting the preset requirement.

19. The terminal according to claim 18, wherein different subframes at N different times indicated in the uplink scheduling grant signaling correspond to channels corresponding to unlicensed spectrum in a long term evolution system.

20. The terminal according to claim 18 or 19, characterized in that the terminal further comprises: a first determination unit; wherein,

the first determining unit is configured to determine a frequency band corresponding to a first subframe at a first time in different subframes at the N different times;

the judging unit is configured to judge whether a frequency band parameter value of a frequency band corresponding to a first subframe at a first time in different subframes at the N different times is smaller than a preset threshold;

and the data sending unit is configured to send, when a frequency band parameter value of a frequency band corresponding to a first subframe at a first time in the N different subframes at different times is smaller than a preset threshold, uplink service data corresponding to the uplink scheduling request message on the frequency band corresponding to the first subframe at the first time in the N different subframes at different times.

21. The terminal of claim 20, wherein the terminal further comprises: a second determination unit; wherein,

the second determining unit is configured to trigger the first determining unit when it is determined that a frequency band parameter value of a frequency band corresponding to a first subframe at a first time in the N different subframes at different times is greater than or equal to a preset threshold value; in a corresponding manner, the first and second electrodes are,

the first determining unit is further configured to determine a frequency band corresponding to a second subframe at a second time in different subframes at the N different times; in a corresponding manner, the first and second electrodes are,

the judging unit is further configured to judge whether a frequency band parameter value of a frequency band corresponding to a second subframe at a second time in different subframes at the N different times is smaller than a preset threshold.

22. The terminal of claim 21, wherein the terminal further comprises: a third determining unit, a second message receiving unit and a fourth determining unit; wherein,

the third determining unit is configured to trigger the data sending unit when determining that a frequency band parameter value of a frequency band corresponding to an xth subframe at an xth time in the N different subframes at different times is smaller than a preset threshold;

the data sending unit is further configured to send uplink service data corresponding to the uplink scheduling request message on a frequency band corresponding to an xth subframe at an xth time in the N different subframes at different times;

the second message receiving unit is configured to receive a failure confirmation message indicating that the uplink service data demodulation fails;

the fourth determining unit is configured to determine a retransmission instruction according to the acknowledgement failure message or a preset rule; the retransmission instruction indicates a third subframe at a third moment or indicates M different subframes at different moments;

a third subframe of the third time is a subframe corresponding to any one of the N different subframes at different times; the M different sub-frames at different moments are any M different sub-frames at different moments in the N different sub-frames at different moments; m is a positive integer which is more than or equal to 2 and less than or equal to N; and X is a positive integer which is greater than or equal to 1 and less than or equal to N.

23. The terminal of claim 22, wherein the terminal further comprises:

a first retransmission unit, configured to retransmit, according to the retransmission instruction, uplink service data corresponding to the uplink scheduling request message on each frequency band corresponding to Y different subframes at different times in the M different subframes at different times;

wherein Y is a positive integer of 2-M.

24. The terminal of claim 23, wherein the first retransmission unit comprises:

the first determining subunit is configured to trigger the retransmission subunit when it is determined that the frequency band parameter values of the frequency bands corresponding to Y different sub-frames at different times in the M different sub-frames at different times are all smaller than a preset threshold value;

a first retransmission subunit, configured to retransmit the uplink service data corresponding to the uplink scheduling request message on each frequency band corresponding to Y different subframes at different times in the M different subframes at different times.

25. The terminal of claim 22, wherein the terminal further comprises: a fifth determining unit and a sixth determining unit; wherein,

the judging unit is used for judging whether a frequency band parameter value of a frequency band corresponding to a first subframe at a first moment in different subframes at the M different moments is smaller than a preset threshold value or not according to the retransmission instruction;

the fifth determining unit is configured to trigger the data sending unit when determining that a frequency band parameter value of a frequency band corresponding to a first subframe at a first time in different subframes at the M different times is smaller than a preset threshold;

the data sending unit is configured to send uplink service data corresponding to the uplink scheduling request message on a frequency band corresponding to a first subframe at a first time in different subframes of the M different times;

the sixth determining unit is configured to trigger the determining unit when it is determined that a frequency band parameter value of a frequency band corresponding to a first subframe at a first time in different subframes at the M different times is greater than or equal to a preset threshold value;

correspondingly, the determining unit is further configured to determine whether a frequency band parameter value of a frequency band corresponding to a second subframe at a second time in different subframes at the M different times is smaller than a preset threshold.

26. The terminal of claim 21, wherein the terminal further comprises: an eighth determining unit, a third message receiving unit and a seventh determining unit; wherein,

the eighth determining unit is configured to trigger the data sending unit when determining that a frequency band parameter value of a frequency band corresponding to an xth subframe at an xth time in the N different subframes at different times is smaller than a preset threshold;

the data sending unit is configured to send uplink service data corresponding to the uplink scheduling request message on a frequency band corresponding to an xth subframe at an xth time in the N different subframes at different times;

the third message receiving unit is configured to receive a confirmation success message that the uplink service data is successfully demodulated;

the seventh determining unit is configured to determine, according to the confirmation success message, different subframes at the remaining N-X different times in the different subframes at the N different times;

the data sending unit is further configured to send other uplink service data except the uplink service data corresponding to the uplink scheduling request message on the frequency band corresponding to the remaining N-X different subframes at different times in the N different subframes at different times.