CN111757345A - An information transmission method and terminal - Google Patents

Abstract

The invention provides an information transmission method and a terminal, and solves the problems of low reliability of information transmission, low frequency spectrum utilization rate and inaccurate perception information in the prior art. The method comprises the following steps: acquiring a monitoring window; acquiring resource occupation information of the historical service packet in the listening window; and transmitting information on the remaining resources except the first occupied resource corresponding to the resource occupation information in the resource selection window. The invention can improve the reliability of information transmission, improve the utilization rate of frequency spectrum and achieve the effect of accurately sensing information.

Description

An information transmission method and terminal

technical field

The present invention relates to the technical field of communications, and in particular, to an information transmission method and a terminal.

Background technique

There are many types of services in the Internet of Vehicles. For example, services with characteristics of periodicity and predictable service package size, such as basic road safety applications; services with aperiodic characteristics and unpredictable service package size, such as some events triggered business.

In the prior art, a CSMA/CA (Carrier Sense Multiple Access/Collision Avoidance, carrier sense multiple access/collision avoidance) mechanism may be used, and after the carrier sense is busy, the access is delayed by random backoff to avoid resource collision. However, it does not consider the periodic characteristics of road safety services in the Internet of Vehicles, with low reliability and low spectrum utilization.

Considering the periodicity of basic road safety applications and the predictable size of service packets, the existing technology can also adopt the methods of perceptual reception and semi-persistent scheduling to provide resource occupancy information and received signal power/received energy for the resource selection process. information. However, using perception and one shot (One shot) for aperiodic services, and still using received energy processing at this time will lead to inaccurate perception results. In addition, the prior art does not support unicast (unicast) and multicast (groupcast) services.

SUMMARY OF THE INVENTION

The purpose of the present invention is to provide an information transmission method and terminal to solve the problems of low reliability of information transmission, low spectrum utilization rate and inaccurate sensing information in the prior art.

To achieve the above purpose, an embodiment of the present invention provides an information transmission method, applied to a terminal, including:

get the monitor window;

Obtaining the resource occupation information of the historical service package in the monitoring window;

In the resource selection window, information transmission is performed on the remaining resources except the first occupied resource corresponding to the resource occupancy information.

Among them, the monitoring window is obtained, including:

The monitoring window is obtained by means of high-level signaling configuration, pre-configuration or system default configuration.

Wherein, the listening window is used to perceive and receive the historical service package.

Wherein, obtaining the resource occupation information of the historical service package in the monitoring window, including:

receiving the transmission information of the historical service package;

According to the transmission information, obtain the resource occupation information of the historical service package in the monitoring window;

Wherein, when the transmission information includes feedback information of a unicast or multicast service package, the resource occupation information includes time-frequency resources occupied by the feedback information; and/or;

In the case where the transmission information includes a preamble, the resource occupation information includes time-frequency resources occupied by control information of historical service packets and/or time-frequency resources occupied by data information.

Wherein, in the resource selection window, before the information transmission is performed on the remaining resources except the first occupied resource corresponding to the resource occupancy information, the method further includes:

Resource exclusion is performed on the first occupied resource corresponding to the resource occupancy information in the resource selection window and/or the second occupied resource corresponding to the resource occupancy information reserved for multiple times in the resource selection window in the future.

Wherein, the historical service package includes aperiodic service package;

Perform resource exclusion on the first occupied resource corresponding to the resource occupancy information in the resource selection window, including:

In the case that the retransmission of the aperiodic service packet falls within the resource selection window, and there is at least one successful decoding of the control information and the received power of the reference signal of the data information associated with the control information is greater than the first threshold, exclude the the first occupied resource corresponding to the resource occupancy information in the resource selection window.

Wherein, the historical service package includes a periodic service package;

Performing resource exclusion on the first occupied resource corresponding to the resource occupancy information in the resource selection window and/or the second occupied resource corresponding to the resource occupancy information reserved for multiple times in the resource selection window in the future, including:

The periodic service packet is mapped to the resources in the resource selection window and/or the resources reserved for multiple times in the future in the resource selection window according to the period indicated in the control information, and the control information is decoded successfully and is consistent with the When the received power of the reference signal of the data information associated with the control information is greater than the second threshold, exclude the first occupied resource corresponding to the resource occupancy information in the resource selection window and/or the resource selection window for multiple reservations in the future. The second occupied resource corresponding to the resource occupancy information.

Wherein, in the resource selection window, information transmission is performed on the remaining resources except the first occupied resource corresponding to the resource occupancy information, including:

In the case that the historical service package includes aperiodic services, and the occupancy ratio of the aperiodic services is less than or equal to the third threshold, within the resource selection window, except for the first occupied resource corresponding to the resource occupancy information and information transmission is performed on the remaining resources other than the third occupied resource corresponding to the sending subframe of the aperiodic service.

Wherein, in the resource selection window, information transmission is performed on the remaining resources except the first occupied resource corresponding to the resource occupancy information, including:

selecting an available resource among the remaining resources;

Based on the available resources, information transmission is performed.

Wherein, the selecting an available resource from the remaining resources includes:

When the proportion of the remaining resources in the total resources in the resource selection window is greater than a first preset value, an available resource is randomly selected from the remaining resources.

Wherein, the selecting an available resource from the remaining resources includes:

Sorting the remaining resources according to the RSSI of the received energy indication of each sub-channel corresponding to the periodic service package in the historical service package;

An available resource is randomly selected from the first remaining resources with the lowest RSSI energy, the remaining resources include the first remaining resources, and the proportion of the first remaining resources in the total resources in the resource selection window is greater than second preset value.

Wherein, the selecting an available resource from the remaining resources includes:

smoothing the received energy indication RSSI of each sub-channel corresponding to the historical service package;

sorting the remaining resources according to the smoothed RSSI;

An available resource is randomly selected from the second remaining resources with the lowest RSSI energy, the remaining resources include the second remaining resources, and the proportion of the second remaining resources in the total resources in the resource selection window is greater than The third preset value.

Wherein, the smoothing of the received energy indication RSSI of each sub-channel corresponding to the historical service packet includes:

The received energy indication RSSI of each sub-channel corresponding to the historical service packet is smoothed according to the minimum service period configured by high-level signaling, pre-configured or set by default parameters.

Wherein, the smoothing of the received energy indication RSSI of each sub-channel corresponding to the historical service packet includes:

In the case where the difference between the proportion of periodic services and the proportion of aperiodic services in the historical service package is greater than the target threshold value, and the services to be transmitted are periodic services, according to the period or system configuration period, smooth the received energy indication RSSI of each sub-channel corresponding to the historical service packet;

Wherein, the target threshold value is configured by high-layer signaling, pre-configured or set by default parameters.

Wherein, the listening window is also used to record the transmission period of the periodic service.

In order to achieve the above object, an embodiment of the present invention further provides a terminal, including: a transceiver, a memory, a processor, and a computer program stored in the memory and running on the processor; the processor executes the Implement the following steps when describing the program:

get the monitor window;

Obtaining the resource occupation information of the historical service package in the monitoring window;

In the resource selection window, information transmission is performed on the remaining resources except the first occupied resource corresponding to the resource occupancy information.

Wherein, the processor also implements the following steps when executing the program:

The monitoring window is obtained by means of high-level signaling configuration, pre-configuration or system default configuration.

Wherein, the listening window is used to perceive and receive the historical service package.

Wherein, the processor also implements the following steps when executing the program:

receiving the transmission information of the historical service package;

According to the transmission information, obtain the resource occupation information of the historical service package in the monitoring window;

Wherein, when the transmission information includes feedback information of a unicast or multicast service package, the resource occupation information includes time-frequency resources occupied by the feedback information; and/or;

In the case where the transmission information includes a preamble, the resource occupation information includes time-frequency resources occupied by control information of historical service packets and/or time-frequency resources occupied by data information.

Wherein, the processor also implements the following steps when executing the program:

Resource exclusion is performed on the first occupied resource corresponding to the resource occupancy information in the resource selection window and/or the second occupied resource corresponding to the resource occupancy information reserved for multiple times in the resource selection window in the future.

Wherein, the historical service package includes aperiodic service package; the processor also implements the following steps when executing the program:

In the case that the retransmission of the aperiodic service packet falls within the resource selection window, and there is at least one successful decoding of the control information and the received power of the reference signal of the data information associated with the control information is greater than the first threshold, exclude the the first occupied resource corresponding to the resource occupancy information in the resource selection window.

Wherein, the historical service package includes periodic service package; when the processor executes the program, the following steps are also implemented:

The periodic service packet is mapped to the resources in the resource selection window and/or the resources reserved for multiple times in the future in the resource selection window according to the period indicated in the control information, and the control information is decoded successfully and is consistent with the When the received power of the reference signal of the data information associated with the control information is greater than the second threshold, exclude the first occupied resource corresponding to the resource occupancy information in the resource selection window and/or the resource selection window for multiple reservations in the future. The second occupied resource corresponding to the resource occupancy information.

Wherein, the processor also implements the following steps when executing the program:

In the case that the historical service package includes aperiodic services, and the occupancy ratio of the aperiodic services is less than or equal to the third threshold, within the resource selection window, except for the first occupied resource corresponding to the resource occupancy information and information transmission is performed on the remaining resources other than the third occupied resource corresponding to the sending subframe of the aperiodic service.

Wherein, the processor also implements the following steps when executing the program:

selecting an available resource among the remaining resources;

Based on the available resources, information transmission is performed.

Wherein, the processor also implements the following steps when executing the program:

When the proportion of the remaining resources in the total resources in the resource selection window is greater than a first preset value, an available resource is randomly selected from the remaining resources.

Wherein, the processor also implements the following steps when executing the program:

Sorting the remaining resources according to the RSSI of the received energy indication of each sub-channel corresponding to the periodic service package in the historical service package;

An available resource is randomly selected from the first remaining resources with the lowest RSSI energy, the remaining resources include the first remaining resources, and the proportion of the first remaining resources in the total resources in the resource selection window is greater than second preset value.

Wherein, the processor also implements the following steps when executing the program:

smoothing the received energy indication RSSI of each sub-channel corresponding to the historical service package;

sorting the remaining resources according to the smoothed RSSI;

An available resource is randomly selected from the second remaining resources with the lowest RSSI energy, the remaining resources include the second remaining resources, and the proportion of the second remaining resources in the total resources in the resource selection window is greater than The third preset value.

Wherein, the processor also implements the following steps when executing the program:

The received energy indication RSSI of each sub-channel corresponding to the historical service packet is smoothed according to the minimum service period configured by high-level signaling, pre-configured or set by default parameters.

Wherein, the processor also implements the following steps when executing the program:

In the case where the difference between the proportion of periodic services and the proportion of aperiodic services in the historical service package is greater than the target threshold value, and the services to be transmitted are periodic services, according to the period or system configuration period, smooth the received energy indication RSSI of each sub-channel corresponding to the historical service packet;

Wherein, the target threshold value is configured by high-layer signaling, pre-configured or set by default parameters.

Wherein, the listening window is also used to record the transmission period of the periodic service.

In order to achieve the above purpose, an embodiment of the present invention further provides a terminal, including:

The first obtaining module is used to obtain the monitoring window;

The second acquisition module is used to obtain the resource occupation information of the historical service package in the monitoring window;

The transmission module is configured to transmit information on the remaining resources other than the first occupied resource corresponding to the resource occupancy information in the resource selection window.

Wherein, the first acquisition module includes:

The first obtaining sub-module is configured to obtain the monitoring window by means of high-level signaling configuration, pre-configuration or system default configuration.

Wherein, the listening window is used to perceive and receive the historical service package.

Wherein, the second acquisition module includes:

a receiving sub-module for receiving the transmission information of the historical service package;

A second acquisition sub-module, configured to acquire, according to the transmission information, the resource occupation information of the historical service packets in the monitoring window;

Wherein, when the transmission information includes feedback information of a unicast or multicast service package, the resource occupation information includes time-frequency resources occupied by the feedback information; and/or;

In the case where the transmission information includes a preamble, the resource occupation information includes time-frequency resources occupied by control information of historical service packets and/or time-frequency resources occupied by data information.

Among them, it also includes:

The exclusion processing module is configured to, on the remaining resources except the first occupied resource corresponding to the resource occupancy information, perform information transmission on the remaining resources, the first occupied resource and the corresponding first occupied resource of the resource occupied information in the resource selection window and /Or the second occupied resource corresponding to the resource occupancy information reserved for multiple times in the future by the resource selection window is excluded from the resource.

Wherein, the exclusion processing module includes:

The first exclusion processing submodule is configured to include an aperiodic service packet in the historical service packet, and the retransmission of the aperiodic service packet falls within the resource selection window, and there is at least one successful decoding of control information and all When the received power of the reference signal of the data information associated with the control information is greater than the first threshold, the first occupied resource corresponding to the resource occupancy information in the resource selection window is excluded.

Wherein, the exclusion processing module includes:

A second exclusion processing sub-module, configured to include periodic service packets in the historical service packets, and the periodic service packets are mapped to the resources in the resource selection window and/or to the resources in the resource selection window according to the period indicated in the control information If the resource selection window is reserved for multiple times in the future, and the control information is successfully decoded and the received power of the reference signal of the data information associated with the control information is greater than the second threshold, the resource in the resource selection window is excluded. The first occupied resource corresponding to the occupancy information and/or the second occupied resource corresponding to the resource occupancy information reserved for multiple times in the future by the resource selection window.

Wherein, the transmission module includes:

The first transmission submodule is configured to, in the resource selection window, in the resource selection window, except the resource Information transmission is performed on the remaining resources other than the first occupied resource corresponding to the occupancy information and the third occupied resource corresponding to the sending subframe of the aperiodic service.

Wherein, the transmission module includes:

a selection submodule for selecting an available resource from the remaining resources;

The second transmission submodule is configured to transmit information based on the available resources.

Wherein, the selection sub-module includes:

A first selection unit, configured to randomly select an available resource from the remaining resources when the proportion of the remaining resources in the total resources in the resource selection window is greater than a first preset value.

Wherein, the selection sub-module includes:

a first sorting unit, configured to sort the remaining resources according to the RSSI of the received energy indication of each sub-channel corresponding to the periodic service packet in the historical service packet;

a second selection unit, configured to randomly select an available resource from the first remaining resources with the lowest RSSI energy, the remaining resources include the first remaining resources, and the first remaining resources are within the resource selection window. The proportion of the total resources is greater than the second preset value.

Wherein, the selection sub-module includes:

a smoothing processing unit, configured to smooth the RSSI of the received energy indication of each sub-channel corresponding to the historical service packet;

a second sorting unit, configured to sort the remaining resources according to the smoothed RSSI;

The third selection unit randomly selects an available resource from the second remaining resources with the lowest RSSI energy, the remaining resources include the second remaining resources, and the second remaining resources are the total resources in the resource selection window The proportion of is greater than the third preset value.

The smoothing processing unit is specifically configured to smooth the RSSI of the received energy indication of each sub-channel corresponding to the historical service packet according to the minimum service period set by high-level signaling configuration, pre-configuration or default parameters.

Wherein, the smoothing processing unit is specifically used for the difference between the proportion of periodic services and the proportion of aperiodic services in the historical service package is greater than the target threshold value, and the services to be transmitted are periodic In the case of the service, according to the period of the service to be transmitted or the system configuration period, the received energy indication RSSI of each sub-channel corresponding to the historical service packet is smoothed; wherein, the target threshold value is configured by high-level signaling , preconfigured or default parameter settings.

Wherein, the listening window is also used to record the transmission period of the periodic service.

In order to achieve the above object, an embodiment of the present invention further provides a computer-readable storage medium on which a computing program is stored, and when the computer program is executed by a processor, implements the steps of the above-mentioned information transmission method.

The above-mentioned technical scheme of the present invention has at least the following beneficial effects:

In the above technical solution of the embodiment of the present invention, the monitoring window is obtained; the resource occupation information of the historical service package in the monitoring window is obtained; in the resource selection window, in addition to the first occupation resource corresponding to the resource occupation information Information transmission is performed on the remaining resources of the network, so that the reliability of information transmission can be improved, the spectrum utilization rate can be improved, and the effect of accurate information perception can be achieved.

Description of drawings

1 is a schematic flowchart of an information transmission method according to an embodiment of the present invention;

Fig. 2 is the timing diagram corresponding to resource selection based on Preamble/SA/DATA/feedback information;

3 is a schematic diagram of a resource exclusion process for reaching aperiodic services at time n in an example of the present invention;

4 is a schematic diagram of a resource exclusion process for reaching periodic services at time n in an example of the present invention;

5 is a structural block diagram of a terminal according to an embodiment of the present invention;

FIG. 6 is a schematic block diagram of a terminal according to an embodiment of the present invention.

Detailed ways

In order to make the technical problems, technical solutions and advantages to be solved by the present invention more clear, the following will be described in detail with reference to the accompanying drawings and specific embodiments.

As shown in FIG. 1, an embodiment of the present invention provides an information transmission method, which is applied to a terminal, including:

Step 101: obtain a monitoring window;

In this step, the monitoring window is a long-term sensing (long-term sensing, LTS) window.

Here, considering that the maximum length of the periodic service period supported by each region is different, and the receiving and processing capabilities of different terminal UEs are different (eg, the buffer size supported by the buffered data is different), the length of the listening window can be set flexibly.

Specifically, the length of the listening window is configured by means of high-level signaling configuration, pre-configuration or system default configuration.

For example, according to the maximum length of the periodic service cycle supported by each region, through high-level signaling configuration, pre-configuration or system default configuration, the length of the listening window in region A can be configured to be 2 seconds, and the length of the listening window in region B can be set to 2 seconds. is 500 seconds, and the length of the listening window in region C is 1 second.

For another example, if the UE only supports buffering with a listening window length of 1 second, the UE can report the UE capability, and configure the listening window length to 1 second through high-level signaling configuration, pre-configuration or system default configuration.

Step 102: obtain resource occupation information of historical service packages in the monitoring window;

It should be noted that the historical service packages may include: periodic service packages, aperiodic service packages, unicast service packages, multicast service packages, broadcast service packages, and the like.

The resource occupancy information may include time-frequency resources occupied by control information, time-frequency resources occupied by data information, time-frequency resources occupied by preambles, time-frequency resources occupied by feedback information, and the like.

Step 103: In the resource selection window, information transmission is performed on the remaining resources except the first occupied resource corresponding to the resource occupancy information.

In this step, by performing information transmission on the remaining resources other than the occupied resources in the resource selection window, fast access is possible, resource collision is reduced, and information transmission reliability and spectrum utilization rate are improved.

In the information transmission method according to the embodiment of the present invention, the monitoring window is obtained; the resource occupation information of the historical service package in the monitoring window is obtained; in the resource selection window, the resources other than the first occupation resource corresponding to the resource occupation information are obtained. On the remaining resources, information transmission is performed. In this way, the reliability of information transmission can be improved, the utilization rate of spectrum can be improved, and the effect of accurately sensing information can be achieved.

Based on the embodiment shown in FIG. 1, as an optional implementation manner, step 101 may specifically include:

The monitoring window is obtained by means of high-level signaling configuration, pre-configuration or system default configuration.

Specifically, the monitoring window is used to perceive and receive the historical service package.

Based on the embodiment shown in FIG. 1, as an optional implementation manner, step 102 may specifically include:

receiving the transmission information of the historical service package;

According to the transmission information, obtain the resource occupation information of the historical service package in the monitoring window;

Wherein, when the transmission information includes feedback information of a unicast or multicast service package, the resource occupation information includes time-frequency resources occupied by the feedback information; and/or;

In the case where the transmission information includes a preamble, the resource occupation information includes time-frequency resources occupied by control information of historical service packets and/or time-frequency resources occupied by data information.

It should be noted that the transmission information of the historical service package may include control information SA (schedulingassignment, scheduling assignment), data information DATA, feedback information of the unicast or multicast service package, preamble and the like.

Here, for the broadcast service, the terminal receives and decodes the SAs of each initial transmission/retransmission of the historical service packets in the listening window, such as the LTS window. If the SA is successfully decoded, the RSRP (Reference Signal Receiving Power) of the DATA associated with the SA is calculated Signal received power); if decoding is unsuccessful, no processing is performed.

Here, the terminal receives the control information SA in the monitoring window, and decodes the SA. If the SA is successfully decoded, it can decode the feedback information of the unicast or multicast service package. When the feedback information is successfully decoded, it obtains the time-frequency resources occupied by the feedback information. .

Specifically, for a unicast or multicast service, the terminal receives and decodes the SAs of each initial transmission/retransmission of the service packet in the LTS window. If the SA is decoded successfully, the RSRP of the DATA associated with the SA is calculated; if the decoding is unsuccessful, Not processed. Moreover, it is necessary to receive and decode the feedback information of the unicast or multicast service packets according to the successfully decoded SA and the explicit or implicit association between SA/DATA and the feedback information, and record the amount of time occupied by the successfully decoded feedback information. Time-frequency resource information.

In addition, the time-frequency resources occupied by the feedback information can also be obtained by receiving the display configuration of the time-frequency resources of the feedback information in the resource pool.

That is to say, in the receiving resource pool, if the time-frequency resources corresponding to the feedback information are displayed and configured, regardless of whether the SA decoding is successful, the time-frequency resources corresponding to the feedback information are recorded, so that they are not used for SA and/or resource selection. The sending resource of DATA.

In addition, the terminal receives the preamble Preamble in the listening window, and obtains the time-frequency resources occupied by the control information and/or the time-frequency resources occupied by the data information according to the time-frequency positional relationship between the Preamble and the control information and/or data information.

Specifically, in the LTS window, when the terminal detects the Preamble, it can receive and decode the SA on the time-frequency resource corresponding to the Preamble in an explicit or implicit manner. If the SA is successfully decoded, the RSRP of the DATA associated with the SA is calculated; Feedback information is received and decoded.

If the SA decoding is successful and the RSRP of the DATA associated with the SA exceeds the threshold, the resources reserved for multiple times in the resource selection window or the resource selection window in the future (for the periodical services received in the LTS window) are considered to be occupied. The resources corresponding to the Preamble/SA/DATA/feedback information that are associated explicitly or implicitly are also occupied. For details, please refer to the timing diagram corresponding to resource selection based on the Preamble/SA/DATA/feedback information shown in FIG. 2 .

In order to minimize or even avoid resource collision during information transmission and further improve the reliability of information transmission, preferably, before step 103, the method of the present invention may further include:

Resource exclusion is performed on the first occupied resource corresponding to the resource occupancy information in the resource selection window and/or the second occupied resource corresponding to the resource occupancy information reserved for multiple times in the resource selection window in the future.

Specifically, the historical service package includes an aperiodic service package; correspondingly, the first occupied resource corresponding to the resource occupation information in the resource selection window may include:

In the case that the retransmission of the aperiodic service packet falls within the resource selection window, and there is at least one successful decoding of the control information and the received power of the reference signal of the data information associated with the control information is greater than the first threshold, exclude the the first occupied resource corresponding to the resource occupancy information in the resource selection window.

In an example, as shown in FIG. 3 , the time domain range of the LTS window is [n-1000, n-1], the time domain range of the resource selection window is [n+T ₁ , n+T ₂ ], and the terminal is in The aperiodic service packet 1 is detected in the LTS window, and the retransmission of the aperiodic service packet 1 falls within the resource selection window, and the initial retransmission of the aperiodic service packet 1 has a successful SA decoding and SA association The RSRP of the DATA is greater than the first threshold, then the first mapping resource 2 of the aperiodic service package 1 in the corresponding LTS window in the resource selection window is occupied, and the first mapping resource 2 (that is, the first occupied resource) is excluded. In this way, in At time n when the service M (the service M is an aperiodic service) arrives, it is transmitted on the remaining resources except the first mapping resource in the resource selection window without considering the periodic service received in the LTS window. The business M.

Specifically, the historical service package includes a periodic service package; correspondingly, the first occupied resource corresponding to the resource occupation information in the resource selection window and/or the resource selection window for multiple reservations in the future Resource exclusion is performed on the second occupied resource corresponding to the resource occupancy information, which may include:

The periodic service packet is mapped to the resources in the resource selection window and/or the resources reserved for multiple times in the future in the resource selection window according to the period indicated in the control information, and the control information is decoded successfully and is consistent with the When the received power of the reference signal of the data information associated with the control information is greater than the second threshold, exclude the first occupied resource corresponding to the resource occupancy information in the resource selection window and/or the resource selection window for multiple reservations in the future. The second occupied resource corresponding to the resource occupancy information.

In an example, continuing to refer to FIG. 3 , the terminal perceives and receives a periodic service package 3 in the LTS window, and the periodic service package 3 is mapped to resources and resource selection in the resource selection window according to the period indicated in the control information. When the resource is reserved for multiple times in the future, and the control information is successfully decoded and the received power of the reference signal of the data information associated with the control information is greater than the second threshold, the resource selection window corresponds to the periodic service in the LTS window. The second mapping resource 4 of the package 3 is occupied. After the time n+T ₂ , according to the period of the periodic service package 3, the third mapping resource 5 reserved for multiple times in the resource selection window is occupied in the future, and the second mapping resource is excluded. 4 (that is, the first occupied resource) and the third mapping resource 5 (that is, the second occupied resource), in this way, at time n when the service M (the service M is an aperiodic service) reaches, the perception and reception in the LTS window are not considered. On the premise of the received aperiodic service, the service M is transmitted on the remaining resources in the resource selection window except the second mapping resource.

However, it should be noted that in FIG. 3, the terminal perceives and receives aperiodic service packet 1 and periodic service packet 3 within the LTS window. Therefore, based on the above processing, it can be known that at time n when service M arrives, at the resource The service M is transmitted on the remaining resources except the first mapping resource 2 and the second mapping resource 4 in the selection window.

Here, FIG. 4 is similar to FIG. 3 , the difference is that the service N arriving at time n is a periodic service, and resources reserved multiple times in the future in the resource selection window corresponding to the periodic service in the LTS window are considered during resource selection. In FIG. 3 , the service M arriving at time n is an aperiodic service, and resources reserved multiple times in the future in the resource selection window corresponding to the periodic service in the LTS window are not considered during resource selection. It should be noted that the control information may be used to indicate information such as the time-frequency location of the initial/retransmitted data packet, the service period, and the like.

In order to improve the accuracy of the perception result and further improve the reliability of information transmission, based on the embodiment shown in FIG. 1 , as an optional implementation manner, step 103 may include:

In the case that the historical service package includes aperiodic services, and the occupancy ratio of the aperiodic services is less than or equal to the third threshold, within the resource selection window, except for the first occupied resource corresponding to the resource occupancy information and information transmission is performed on the remaining resources other than the third occupied resource corresponding to the sending subframe of the aperiodic service.

Here, the occupancy ratio threshold of the aperiodic service can be configured by the upper layer, which specifically refers to the third threshold here.

It should be noted that if the occupancy ratio of aperiodic services exceeds the third threshold, the sending subframe exclusion process is not performed; otherwise, the sending subframe exclusion process is performed, for example, the R14/R15 sending subframe exclusion process is reused.

Here, it needs to be explained that after excluding the resources occupied in the resource selection window, it is determined whether the proportion of the remaining resources in the resource selection window to the total resources in the resource selection window is greater than a preset value, such as 20%, if If it is greater than that, the resource exclusion process is completed; otherwise, the RSRP threshold is raised, such as 3dB, and then step 102 is iterated until the ratio of the remaining resources in the resource selection window to the total resources in the resource selection window is greater than the preset value.

It should be noted that the proportion of the remaining resources in the total resources in the resource selection window is greater than the preset value, the purpose of which is to ensure the randomness of subsequent resource selection.

Based on the embodiment shown in FIG. 1, as an optional implementation manner, step 103 may include:

selecting an available resource among the remaining resources;

Based on the available resources, information transmission is performed.

In the step of selecting an available resource from the remaining resources, the following three implementation manners may be specifically included.

Method 1: Do not calculate RSSI ((Received Signal Strength Indication, received energy indication), as follows:

When the proportion of the remaining resources in the total resources in the resource selection window is greater than a first preset value, an available resource is randomly selected from the remaining resources.

For example, the remaining resources (also known as candidate resource sets) in the resource selection window account for more than 20% of the total resources in the resource selection window, and resources are directly selected randomly from the remaining resources for information transmission.

Mode 2: Only calculate the RSSI of the sub-channel corresponding to the periodic service, and do not calculate the RSSI of the sub-channel corresponding to the aperiodic service, as follows:

Sorting the remaining resources according to the RSSI of the received energy indication of each sub-channel corresponding to the periodic service package in the historical service package;

An available resource is randomly selected from the first remaining resources with the lowest RSSI energy, the remaining resources include the first remaining resources, and the proportion of the first remaining resources in the total resources in the resource selection window is greater than second preset value.

Preferably, the proportion of the first remaining resources in the total resources in the resource selection window is greater than 20%.

Mode 3: Calculate the RSSI of each periodic/aperiodic service sub-channel in the receiving resource pool, as follows:

smoothing the received energy indication RSSI of each sub-channel corresponding to the historical service package;

In this step, the following two implementation manners may be specifically included.

Manner A) According to the minimum service period configured by high-layer signaling, pre-configured or set by default parameters, the RSSI of the received energy indication of each sub-channel corresponding to the historical service packet is smoothed.

Here, RSSI is smoothed according to the minimum service period set by high-level signaling configuration, pre-configuration or default parameters, and the smoothed RSSI value is mapped to the sub-channels of the sending resource pool in the resource selection window.

Mode B) when the difference between the ratio of the periodic service and the ratio of the aperiodic service in the historical service package is greater than the target threshold value, and the service to be transmitted is a periodic service, according to the The period of the service to be transmitted or the system configuration period, the received energy indication RSSI of each sub-channel corresponding to the historical service packet is smoothed; wherein, the target threshold value is set by high-level signaling configuration, pre-configuration or default parameters.

It should be supplemented that in the case that the service to be transmitted is aperiodic service, the RSSI of the received energy indication of each sub-channel corresponding to the historical service packet is not smoothed, or is smoothed according to the system configuration period.

It should be noted that the above-mentioned three processing modes of RSSI in the resource selection window are not limited to processing based on the LTS window. As long as the resource selection process is performed, if the three processing methods of RSSI are used, similar processing can be performed in the corresponding resource selection window.

sorting the remaining resources according to the smoothed RSSI;

An available resource is randomly selected from the second remaining resources with the lowest RSSI energy, the remaining resources include the second remaining resources, and the proportion of the second remaining resources in the total resources in the resource selection window is greater than The third preset value.

Preferably, the proportion of the second remaining resources in the total resources in the resource selection window is greater than 20%.

Preferably, the listening window is also used to record the transmission period of the periodic service.

The information transmission method provided by the embodiment of the present invention has the characteristics of the service model such as predictable size of service packets supporting periodic services, unpredictable size of service packets of aperiodic services, etc., supports unicast and multicast services, and fully considers HARQ (Hybrid Automatic Repeat reQuest, hybrid automatic repeat) feedback mechanism and Premble access mechanism. The signal processing of RSRP and RSSI is carried out reasonably to improve system reliability and frequency utilization.

In the information transmission method according to the embodiment of the present invention, the monitoring window is obtained; the resource occupation information of the historical service package in the monitoring window is obtained; in the resource selection window, the resources other than the first occupation resource corresponding to the resource occupation information are obtained. Information transmission is performed on the remaining resources. In this way, the reliability of information transmission can be improved, the spectrum utilization rate can be improved, and the effect of accurate information perception can be achieved.

As shown in FIG. 5 , an embodiment of the present invention further provides a terminal, including: a memory 520, a processor 500, a transceiver 510, a bus interface, and a computer program stored in the memory 520 and running on the processor 500, The processor 500 is used to read the program in the memory 520, and perform the following processes:

get the monitor window;

Obtaining the resource occupation information of the historical service package in the monitoring window;

In the resource selection window, information transmission is performed on the remaining resources except the first occupied resource corresponding to the resource occupancy information.

5, the bus architecture may include any number of interconnected buses and bridges, specifically one or more processors represented by processor 500 and various circuits of memory represented by memory 520 are linked together. The bus architecture may also link together various other circuits, such as peripherals, voltage regulators, and power management circuits, which are well known in the art and, therefore, will not be described further herein. The bus interface provides the interface. Transceiver 510 may be a number of elements, including a transmitter and a transceiver, providing a means for communicating with various other devices over a transmission medium. For different user equipments, the user interface 530 may also be an interface capable of externally connecting the required equipment, and the connected equipment includes but is not limited to a keypad, a display, a speaker, a microphone, a joystick, and the like.

The processor 500 is responsible for managing the bus architecture and general processing, and the storage 520 may store data used by the processor 500 in performing operations.

Optionally, the processor 500 may further implement the following steps when executing the computer program:

The monitoring window is obtained by means of high-level signaling configuration, pre-configuration or system default configuration.

Preferably, the listening window is used to perceive and receive the historical service package.

Optionally, the processor 500 may further implement the following steps when executing the computer program:

receiving the transmission information of the historical service package;

According to the transmission information, obtain the resource occupation information of the historical service package in the monitoring window;

Wherein, when the transmission information includes feedback information of a unicast or multicast service package, the resource occupation information includes time-frequency resources occupied by the feedback information; and/or;

In the case where the transmission information includes a preamble, the resource occupation information includes time-frequency resources occupied by control information of historical service packets and/or time-frequency resources occupied by data information.

Optionally, the processor 500 may further implement the following steps when executing the computer program:

On the remaining resources other than the first occupied resource corresponding to the resource occupancy information, before information transmission is performed, select the first occupied resource and/or the resource corresponding to the resource occupancy information in the resource selection window Resource exclusion is performed on the second occupied resource corresponding to the resource occupancy information that the window has reserved multiple times in the future.

Optionally, the historical service package includes aperiodic service package; the processor 500 may further implement the following steps when executing the computer program:

In the case that the retransmission of the aperiodic service packet falls within the resource selection window, and there is at least one successful decoding of the control information and the received power of the reference signal of the data information associated with the control information is greater than the first threshold, exclude the the first occupied resource corresponding to the resource occupancy information in the resource selection window.

Optionally, the historical service package includes a periodic service package; the processor 500 may further implement the following steps when executing the computer program:

The periodic service packet is mapped to the resources in the resource selection window and/or the resources reserved for multiple times in the future in the resource selection window according to the period indicated in the control information, and the control information is decoded successfully and is consistent with the When the received power of the reference signal of the data information associated with the control information is greater than the second threshold, exclude the first occupied resource corresponding to the resource occupancy information in the resource selection window and/or the resource selection window for multiple reservations in the future. The second occupied resource corresponding to the resource occupancy information.

Optionally, the processor 500 may further implement the following steps when executing the computer program:

In the case that the historical service package includes aperiodic services, and the occupancy ratio of the aperiodic services is less than or equal to the third threshold, within the resource selection window, except for the first occupied resource corresponding to the resource occupancy information and information transmission is performed on the remaining resources other than the third occupied resource corresponding to the sending subframe of the aperiodic service.

Optionally, the processor 500 may further implement the following steps when executing the computer program:

selecting an available resource among the remaining resources;

Based on the available resources, information transmission is performed.

Optionally, the processor 500 may further implement the following steps when executing the computer program:

When the proportion of the remaining resources in the total resources in the resource selection window is greater than a first preset value, an available resource is randomly selected from the remaining resources.

Optionally, the processor 500 may further implement the following steps when executing the computer program:

Sorting the remaining resources according to the RSSI of the received energy indication of each sub-channel corresponding to the periodic service package in the historical service package;

An available resource is randomly selected from the first remaining resources with the lowest RSSI energy, the remaining resources include the first remaining resources, and the proportion of the first remaining resources in the total resources in the resource selection window is greater than second preset value.

Optionally, the processor 500 may further implement the following steps when executing the computer program:

smoothing the received energy indication RSSI of each sub-channel corresponding to the historical service package;

sorting the remaining resources according to the smoothed RSSI;

An available resource is randomly selected from the second remaining resources with the lowest RSSI energy, the remaining resources include the second remaining resources, and the proportion of the second remaining resources in the total resources in the resource selection window is greater than The third preset value.

Optionally, the processor 500 may further implement the following steps when executing the computer program:

The received energy indication RSSI of each sub-channel corresponding to the historical service packet is smoothed according to the minimum service period configured by high-level signaling, pre-configured or set by default parameters.

Optionally, the processor 500 may further implement the following steps when executing the computer program:

In the case where the difference between the proportion of periodic services and the proportion of aperiodic services in the historical service package is greater than the target threshold value, and the services to be transmitted are periodic services, according to the period or system configuration period, smooth the received energy indication RSSI of each sub-channel corresponding to the historical service packet;

Wherein, the target threshold value is configured by high-layer signaling, pre-configured or set by default parameters.

Preferably, the listening window is also used to record the transmission period of the periodic service.

As shown in FIG. 6, an embodiment of the present invention further provides a terminal, including:

The first obtaining module 601 is used to obtain the monitoring window;

A second obtaining module 602, configured to obtain the resource occupation information of the historical service package in the monitoring window;

The transmission module 603 is configured to transmit information on the remaining resources other than the first occupied resource corresponding to the resource occupancy information in the resource selection window.

In the terminal of this embodiment, the first obtaining module 601 may include:

The first obtaining sub-module is configured to obtain the monitoring window by means of high-level signaling configuration, pre-configuration or system default configuration.

Preferably, the listening window is used to perceive and receive the historical service package.

In the terminal of this embodiment, the second obtaining module 602 may include:

a receiving submodule for receiving the transmission information of the historical service package;

A second acquisition sub-module, configured to acquire, according to the transmission information, the resource occupation information of the historical service packets in the monitoring window;

Wherein, when the transmission information includes feedback information of a unicast or multicast service package, the resource occupation information includes time-frequency resources occupied by the feedback information; and/or;

In the case where the transmission information includes a preamble, the resource occupation information includes time-frequency resources occupied by control information of historical service packets and/or time-frequency resources occupied by data information.

The terminal in this embodiment may further include:

The exclusion processing module is configured to, on the remaining resources except the first occupied resource corresponding to the resource occupancy information, perform information transmission on the remaining resources, the first occupied resource and the corresponding first occupied resource of the resource occupied information in the resource selection window and /Or the second occupied resource corresponding to the resource occupancy information reserved for multiple times in the future by the resource selection window is excluded from the resource.

In the terminal of this embodiment, the exclusion processing module may include:

The first exclusion processing submodule is configured to include an aperiodic service packet in the historical service packet, and the retransmission of the aperiodic service packet falls within the resource selection window, and there is at least one successful decoding of control information and all When the received power of the reference signal of the data information associated with the control information is greater than the first threshold, the first occupied resource corresponding to the resource occupancy information in the resource selection window is excluded.

In the terminal of this embodiment, the exclusion processing module may include:

A second exclusion processing sub-module, configured to include periodic service packets in the historical service packets, and the periodic service packets are mapped to the resources in the resource selection window and/or to the resources in the resource selection window according to the period indicated in the control information If the resource selection window is reserved for multiple times in the future, and the control information is successfully decoded and the received power of the reference signal of the data information associated with the control information is greater than the second threshold, the resource in the resource selection window is excluded. The first occupied resource corresponding to the occupancy information and/or the second occupied resource corresponding to the resource occupancy information reserved for multiple times in the future by the resource selection window.

The terminal in this embodiment, the transmission module 603, may include:

The first transmission submodule is configured to, in the resource selection window, in the resource selection window, except the resource Information transmission is performed on the remaining resources other than the first occupied resource corresponding to the occupancy information and the third occupied resource corresponding to the sending subframe of the aperiodic service.

The terminal in this embodiment, the transmission module 603, may include:

a selection submodule for selecting an available resource from the remaining resources;

The second transmission sub-module is configured to transmit information based on the available resources.

In the terminal of this embodiment, the selection submodule may include:

a first sorting unit, configured to sort the remaining resources according to the RSSI of the received energy indication of each sub-channel corresponding to the periodic service packet in the historical service packet;

a second selection unit, configured to randomly select an available resource from the first remaining resources with the lowest RSSI energy, the remaining resources include the first remaining resources, and the first remaining resources are within the resource selection window. The proportion of the total resources is greater than the second preset value.

In the terminal of this embodiment, the selection submodule may include:

a smoothing processing unit, configured to smooth the RSSI of the received energy indication of each sub-channel corresponding to the historical service packet;

a second sorting unit, configured to sort the remaining resources according to the smoothed RSSI;

The third selection unit randomly selects an available resource from the second remaining resources with the lowest RSSI energy, the remaining resources include the second remaining resources, and the second remaining resources are the total resources in the resource selection window The proportion of is greater than the third preset value.

In the terminal of this embodiment, the smoothing processing unit is specifically configured to perform RSSI on the received energy indication RSSI of each sub-channel corresponding to the historical service packet according to the minimum service period configured by high-level signaling, pre-configured or set by default parameters. smooth.

In the terminal of this embodiment, the smoothing processing unit is specifically configured to, in the historical service package, the difference between the proportion of the periodic service and the proportion of the aperiodic service is greater than the target threshold value, and the data is to be transmitted. When the service is a periodic service, according to the period of the service to be transmitted or the system configuration period, the received energy indication RSSI of each sub-channel corresponding to the historical service packet is smoothed; wherein, the target threshold value is determined by High layer signaling configuration, pre-configured or default parameter settings.

Preferably, the listening window is also used to record the transmission period of the periodic service.

In the terminal of the embodiment of the present invention, the monitoring window is obtained through the first obtaining module; the resource occupation information of the historical service packets in the monitoring window is obtained by the second obtaining module; and the transmission module is in the resource selection window, except that the resource occupation information corresponds to Information transmission is performed on the remaining resources other than the first occupied resource, so that the reliability of information transmission can be improved, the spectrum utilization rate can be improved, and the effect of accurate information perception can be achieved.

In some embodiments of the present invention, a computer-readable storage medium is also provided, on which a computer program is stored, and when the program is executed by a processor, the following steps are implemented:

get the monitor window;

Obtaining the resource occupation information of the historical service package in the monitoring window;

In the resource selection window, information transmission is performed on the remaining resources except the first occupied resource corresponding to the resource occupancy information.

When the program is executed by the processor, all the implementation manners in the foregoing method embodiments applied to the terminal side shown in FIGS. 1 to 4 can be implemented. To avoid repetition, details are not described herein again.

Computer-readable media includes both persistent and non-permanent, removable and non-removable media, and storage of information may be implemented by any method or technology. Information may be computer readable instructions, data structures, modules of programs, or other data. Examples of computer storage media include, but are not limited to, phase-change memory (PRAM), static random access memory (SRAM), dynamic random access memory (DRAM), other types of random access memory (RAM), read only memory (ROM), Electrically Erasable Programmable Read Only Memory (EEPROM), Flash Memory or other memory technology, Compact Disc Read Only Memory (CD-ROM), Digital Versatile Disc (DVD) or other optical storage, Magnetic tape cassettes, magnetic tape magnetic disk storage or other magnetic storage devices or any other non-transmission medium that can be used to store information that can be accessed by a computing device. Computer-readable media, as defined herein, excludes transitory computer-readable media, such as modulated data signals and carrier waves.

It should be further noted that the terminals described in this specification include but are not limited to smart phones, tablet computers, etc., and many of the described functional components are referred to as modules to more particularly emphasize the independence of their implementations.

In this embodiment of the present invention, the modules may be implemented in software so as to be executed by various types of processors. For example, an identified executable code module may comprise one or more physical or logical blocks of computer instructions, which may be structured as objects, procedures, or functions, for example. Nonetheless, the executable code of the identified module need not be physically located together, but may include different instructions stored in different bits that, when logically combined, constitute the module and implement the specification of the module Purpose.

In practice, an executable code module may be a single instruction or many instructions, and may even be distributed over multiple different code segments, among different programs, and across multiple memory devices. Likewise, operational data may be identified within modules, and may be implemented in any suitable form and organized within any suitable type of data structure. The operational data may be collected as a single data set, or may be distributed over different locations (including over different storage devices), and may exist at least in part only as electronic signals on a system or network.

When a module can be implemented by software, considering the level of existing hardware technology, a module that can be implemented by software, regardless of cost, can build corresponding hardware circuits to implement corresponding functions. The hardware circuits include conventional very large scale integration (VLSI) circuits or gate arrays as well as off-the-shelf semiconductors such as logic chips, transistors, or other discrete components. A module may also be implemented in programmable hardware devices, such as field programmable gate arrays, programmable array logic, programmable logic devices, and the like.

The above-described exemplary embodiments are described with reference to the drawings, many different forms and embodiments are possible without departing from the spirit and teachings of the present invention, and therefore the present invention should not be construed as the exemplary embodiments set forth herein limits. Rather, these exemplary embodiments are provided so that this disclosure will be thorough and complete, and will convey the scope of the invention to those skilled in the art. In the drawings, component sizes and relative sizes may be exaggerated for clarity. The terminology used herein is for the purpose of describing particular exemplary embodiments only and is not intended to be limiting. As used herein, the singular forms "a," "an," and "the" are intended to include the plural forms as well, unless the context clearly dictates otherwise. It will be further understood that the terms "comprising" and/or "comprising" when used in this specification denote the presence of stated features, integers, steps, operations, components and/or components, but do not exclude one or more other The presence or addition of features, integers, steps, operations, components, components and/or groups thereof. Unless otherwise indicated, when stated, a range of values includes the upper and lower limits of that range and any subranges therebetween.

The above are the preferred embodiments of the present invention. It should be pointed out that for those skilled in the art, without departing from the principles of the present invention, several improvements and modifications can be made. It should be regarded as the protection scope of the present invention.

Claims (46)

1. An information transmission method applied to a terminal is characterized by comprising the following steps:

acquiring a monitoring window;

acquiring resource occupation information of the historical service packet in the listening window;

and transmitting information on the remaining resources except the first occupied resource corresponding to the resource occupation information in the resource selection window.

2. The method of claim 1, wherein obtaining a listening window comprises:

and obtaining the monitoring window in a mode of high-level signaling configuration, pre-configuration or system default configuration.

3. The method of claim 1, wherein the listening window is configured to sense receipt of the historical traffic packets.

4. The method of claim 1, wherein obtaining resource occupancy information for historical traffic packets within the listening window comprises:

receiving transmission information of the historical service packet;

acquiring resource occupation information of the historical service packet in the listening window according to the transmission information;

wherein, under the condition that the transmission information comprises feedback information of a unicast or multicast service packet, the resource occupation information comprises time-frequency resources occupied by the feedback information; and/or;

and under the condition that the transmission information comprises the lead code, the resource occupation information comprises time-frequency resources occupied by the control information of the historical service packet and/or time-frequency resources occupied by the data information.

5. The method according to claim 1, wherein before transmitting information on the remaining resources except for the first occupied resource corresponding to the resource occupancy information within the resource selection window, the method further comprises:

and performing resource exclusion on a first occupied resource corresponding to the resource occupation information in the resource selection window and/or a second occupied resource corresponding to the resource occupation information reserved by the resource selection window for multiple times in the future.

6. The method of claim 5, wherein the historical traffic packets comprise aperiodic traffic packets;

performing resource exclusion on a first occupied resource corresponding to the resource occupation information in the resource selection window, including:

and under the condition that the aperiodic service packet retransmission falls into the resource selection window, at least one time of successful decoding of the control information exists, and the reference signal receiving power of the data information associated with the control information is greater than a first threshold, excluding a first occupied resource corresponding to the resource occupied information in the resource selection window.

7. The method of claim 5, wherein the historical traffic packets comprise periodic traffic packets;

performing resource exclusion on a first occupied resource corresponding to the resource occupation information in the resource selection window and/or a second occupied resource corresponding to the resource occupation information reserved for multiple times in the future in the resource selection window, including:

and under the condition that the periodic service packet is mapped to the resources in the resource selection window and/or the resources reserved in the resource selection window for multiple times in the future according to the period indicated in the control information, the control information is decoded successfully, and the reference signal receiving power of the data information associated with the control information is greater than a second threshold, excluding the first occupied resources corresponding to the resource occupation information in the resource selection window and/or the second occupied resources corresponding to the resource occupation information reserved in the resource selection window for multiple times in the future.

8. The method according to claim 1, wherein the performing information transmission on the remaining resources except for the first occupied resource corresponding to the resource occupation information within the resource selection window comprises:

and under the condition that the historical service packet comprises aperiodic service and the occupation proportion of the aperiodic service is less than or equal to a third threshold, transmitting information on the remaining resources except for a first occupied resource corresponding to the resource occupation information and a third occupied resource corresponding to a sending subframe of the aperiodic service in a resource selection window.

9. The method according to claim 1, wherein the performing information transmission on the remaining resources except for the first occupied resource corresponding to the resource occupancy information in the resource selection window comprises:

selecting an available resource from the remaining resources;

and carrying out information transmission based on the available resources.

10. The method of claim 9, wherein selecting an available resource from the remaining resources comprises:

and under the condition that the occupation ratio of the residual resources in the total resources in the resource selection window is greater than a first preset value, randomly selecting an available resource from the residual resources.

11. The method of claim 9, wherein selecting an available resource from the remaining resources comprises:

sequencing the residual resources according to the received energy indication RSSI of each sub-channel corresponding to the periodic service packet in the historical service packet;

randomly selecting an available resource from first remaining resources with lowest RSSI energy, wherein the remaining resources comprise the first remaining resources, and the occupation ratio of the first remaining resources in the total resources in the resource selection window is greater than a second preset value.

12. The method of claim 9, wherein selecting an available resource from the remaining resources comprises:

smoothing the received energy indication RSSI of each sub-channel corresponding to the historical service packet;

sequencing the residual resources according to the smoothed RSSI;

randomly selecting an available resource from second remaining resources with the lowest RSSI energy, wherein the remaining resources comprise the second remaining resources, and the occupation ratio of the second remaining resources in the total resources in the resource selection window is greater than a third preset value.

13. The method of claim 12, wherein the smoothing the received energy indication (RSSI) of each sub-channel corresponding to the historical traffic packet comprises:

and smoothing the received energy indication RSSI of each sub-channel corresponding to the historical service packet according to a minimum service period set by a high-level signaling configuration, a pre-configuration or a default parameter.

14. The method of claim 12, wherein the smoothing the received energy indication (RSSI) of each sub-channel corresponding to the historical traffic packet comprises:

when the difference value between the occupation ratio of the periodic service and the occupation ratio of the aperiodic service in the historical service package is larger than a target threshold value and the service to be transmitted is the periodic service, smoothing the received energy indication RSSI of each sub-channel corresponding to the historical service package according to the period or the system configuration period of the service to be transmitted;

wherein the target threshold value is configured, preconfigured or default parameter set by higher layer signaling.

15. The method of claim 1, wherein the listening window is further configured to record a transmission period of periodic traffic.

16. A terminal, comprising: a transceiver, a memory, a processor, and a computer program stored on the memory and executable on the processor; wherein the processor implements the following steps when executing the program:

acquiring a monitoring window;

acquiring resource occupation information of the historical service packet in the listening window;

and transmitting information on the remaining resources except the first occupied resource corresponding to the resource occupation information in the resource selection window.

17. The terminal of claim 16, wherein the processor, when executing the program, further performs the steps of:

and obtaining the monitoring window in a mode of high-level signaling configuration, pre-configuration or system default configuration.

18. The terminal of claim 16, wherein the listening window is configured to sense reception of the historical traffic packets.

19. The terminal of claim 16, wherein the processor, when executing the program, further performs the steps of:

receiving transmission information of the historical service packet;

acquiring resource occupation information of the historical service packet in the listening window according to the transmission information;

wherein, under the condition that the transmission information comprises feedback information of a unicast or multicast service packet, the resource occupation information comprises time-frequency resources occupied by the feedback information; and/or;

and under the condition that the transmission information comprises the lead code, the resource occupation information comprises time-frequency resources occupied by the control information of the historical service packet and/or time-frequency resources occupied by the data information.

20. The terminal of claim 16, wherein the processor, when executing the program, further performs the steps of:

and performing resource exclusion on a first occupied resource corresponding to the resource occupation information in the resource selection window and/or a second occupied resource corresponding to the resource occupation information reserved by the resource selection window for multiple times in the future.

21. The terminal of claim 20, wherein the historical traffic packets comprise aperiodic traffic packets; the processor, when executing the program, further implements the steps of:

and under the condition that the aperiodic service packet retransmission falls into the resource selection window, at least one time of successful decoding of the control information exists, and the reference signal receiving power of the data information associated with the control information is greater than a first threshold, excluding a first occupied resource corresponding to the resource occupied information in the resource selection window.

22. The terminal of claim 20, wherein the historical traffic packets comprise periodic traffic packets; the processor, when executing the program, further implements the steps of:

and under the condition that the periodic service packet is mapped to the resources in the resource selection window and/or the resources reserved in the resource selection window for multiple times in the future according to the period indicated in the control information, the control information is decoded successfully, and the reference signal receiving power of the data information associated with the control information is greater than a second threshold, excluding the first occupied resources corresponding to the resource occupation information in the resource selection window and/or the second occupied resources corresponding to the resource occupation information reserved in the resource selection window for multiple times in the future.

23. The terminal of claim 16, wherein the processor, when executing the program, further performs the steps of:

and under the condition that the historical service packet comprises aperiodic service and the occupation proportion of the aperiodic service is less than or equal to a third threshold, transmitting information on the remaining resources except for a first occupied resource corresponding to the resource occupation information and a third occupied resource corresponding to a sending subframe of the aperiodic service in a resource selection window.

24. The terminal of claim 16, wherein the processor, when executing the program, further performs the steps of:

selecting an available resource from the remaining resources;

and carrying out information transmission based on the available resources.

25. The terminal of claim 24, wherein the processor, when executing the program, further performs the steps of:

and under the condition that the occupation ratio of the residual resources in the total resources in the resource selection window is greater than a first preset value, randomly selecting an available resource from the residual resources.

26. The terminal of claim 24, wherein the processor, when executing the program, further performs the steps of:

sequencing the residual resources according to the received energy indication RSSI of each sub-channel corresponding to the periodic service packet in the historical service packet;

randomly selecting an available resource from first remaining resources with lowest RSSI energy, wherein the remaining resources comprise the first remaining resources, and the occupation ratio of the first remaining resources in the total resources in the resource selection window is greater than a second preset value.

27. The terminal of claim 24, wherein the processor, when executing the program, further performs the steps of:

smoothing the received energy indication RSSI of each sub-channel corresponding to the historical service packet;

sequencing the residual resources according to the smoothed RSSI;

randomly selecting an available resource from second remaining resources with the lowest RSSI energy, wherein the remaining resources comprise the second remaining resources, and the occupation ratio of the second remaining resources in the total resources in the resource selection window is greater than a third preset value.

28. The terminal of claim 27, wherein the processor, when executing the program, further performs the steps of:

and smoothing the received energy indication RSSI of each sub-channel corresponding to the historical service packet according to a minimum service period set by a high-level signaling configuration, a pre-configuration or a default parameter.

29. The terminal of claim 27, wherein the processor, when executing the program, further performs the steps of:

when the difference value between the occupation ratio of the periodic service and the occupation ratio of the aperiodic service in the historical service package is larger than a target threshold value and the service to be transmitted is the periodic service, smoothing the received energy indication RSSI of each sub-channel corresponding to the historical service package according to the period or the system configuration period of the service to be transmitted;

wherein the target threshold value is configured, preconfigured or default parameter set by higher layer signaling.

30. The terminal of claim 16, wherein the listening window is further configured to record a transmission period of periodic traffic.

31. A terminal, comprising:

the first acquisition module is used for acquiring a monitoring window;

the second acquisition module is used for acquiring the resource occupation information of the historical service packet in the listening window;

and the transmission module is used for transmitting information on the residual resources except the first occupied resource corresponding to the resource occupation information in the resource selection window.

32. The terminal of claim 31, wherein the first obtaining module comprises:

and the first acquisition submodule is used for acquiring the monitoring window in a high-level signaling configuration, pre-configuration or system default configuration mode.

33. The terminal of claim 31, wherein the listening window is configured to sense reception of the historical traffic packets.

34. The terminal of claim 31, wherein the second obtaining module comprises:

the receiving submodule is used for receiving the transmission information of the historical service packet;

the second obtaining submodule is used for obtaining the resource occupation information of the historical service packet in the monitoring window according to the transmission information;

wherein, under the condition that the transmission information comprises feedback information of a unicast or multicast service packet, the resource occupation information comprises time-frequency resources occupied by the feedback information; and/or;

and under the condition that the transmission information comprises the lead code, the resource occupation information comprises time-frequency resources occupied by the control information of the historical service packet and/or time-frequency resources occupied by the data information.

35. The terminal of claim 31, further comprising:

and the exclusion processing module is used for performing resource exclusion on a first occupied resource corresponding to the resource occupation information in the resource selection window and/or a second occupied resource corresponding to the resource occupation information reserved for multiple times in the future in the resource selection window before information transmission is performed on the residual resources except the first occupied resource corresponding to the resource occupation information.

36. The terminal of claim 35, wherein the exclusion processing module comprises:

and the first elimination processing submodule is used for eliminating a first occupied resource corresponding to the resource occupation information in the resource selection window under the condition that the historical service packet comprises an aperiodic service packet, the retransmission of the aperiodic service packet falls into the resource selection window, at least one time of successful decoding of the control information exists, and the reference signal receiving power of the data information associated with the control information is greater than a first threshold.

37. The terminal of claim 35, wherein the exclusion processing module comprises:

and the second exclusion processing submodule is used for excluding a first occupied resource corresponding to the resource occupation information in the resource selection window and/or a second occupied resource corresponding to the resource occupation information reserved for multiple times in the resource selection window in the future when the historical service package comprises a periodic service package, the periodic service package is mapped to the resource in the resource selection window and/or the resource reserved for multiple times in the future in the resource selection window according to the period indicated in the control information, and the control information is decoded successfully and the reference signal receiving power of the data information associated with the control information is greater than a second threshold.

38. The terminal of claim 31, wherein the transmission module comprises:

and a first transmission sub-module, configured to transmit information on remaining resources, except for a first occupied resource corresponding to the resource occupancy information and a third occupied resource corresponding to a transmission subframe of the aperiodic service, in a resource selection window when the historical service packet includes the aperiodic service and an occupancy ratio of the aperiodic service is less than or equal to a third threshold.

39. The terminal of claim 31, wherein the transmission module comprises:

a selection submodule for selecting an available resource from the remaining resources;

and the second transmission submodule is used for transmitting information based on the available resources.

40. The terminal of claim 39, wherein the selection submodule comprises:

and the first selection unit is used for randomly selecting an available resource from the residual resources under the condition that the occupation ratio of the residual resources in the total resources in the resource selection window is greater than a first preset value.

41. The terminal of claim 39, wherein the selection submodule comprises:

the first sequencing unit is used for sequencing the residual resources according to the received energy indication RSSI of each sub-channel corresponding to the periodic service packet in the historical service packet;

and a second selecting unit, configured to randomly select an available resource from first remaining resources with lowest RSSI energy, where the remaining resources include the first remaining resources, and a proportion of the first remaining resources in total resources in the resource selection window is greater than a second preset value.

42. The terminal of claim 39, wherein the selection submodule comprises:

a smoothing unit, configured to smooth the received energy indication RSSI of each sub-channel corresponding to the historical service packet;

a second sorting unit, configured to sort the remaining resources according to the smoothed RSSI;

and a third selecting unit, configured to randomly select an available resource from second remaining resources with the lowest RSSI energy, where the remaining resources include the second remaining resources, and a proportion of the second remaining resources in total resources in the resource selection window is greater than a third preset value.

43. The terminal according to claim 42, wherein the smoothing unit is specifically configured to smooth the received energy indication RSSI of each sub-channel corresponding to the historical service packet according to a minimum service period configured, preconfigured or set by a default parameter by a higher layer signaling.

44. The terminal according to claim 42, wherein the smoothing unit is specifically configured to smooth, according to a period of the service to be transmitted or a system configuration period, a received energy indication RSSI of each sub-channel corresponding to the historical service package, when a difference between a duty ratio of a periodic service and a duty ratio of an aperiodic service in the historical service package is greater than a target threshold and the service to be transmitted is the periodic service; wherein the target threshold value is configured, preconfigured or default parameter set by higher layer signaling.

45. The terminal of claim 31, wherein the listening window is further configured to record a transmission period of periodic traffic.

46. A computer-readable storage medium, on which a computer program is stored which, when being executed by a processor, carries out the steps of the information transmission method according to any one of claims 1 to 15.

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