WO2018082031A1

WO2018082031A1 - Data sending method and user equipment

Info

Publication number: WO2018082031A1
Application number: PCT/CN2016/104673
Authority: WO
Inventors: 孙迎花; 张兴炜; 黎超
Original assignee: 华为技术有限公司
Priority date: 2016-11-04
Filing date: 2016-11-04
Publication date: 2018-05-11

Abstract

The present disclosure relates to the technical field of communications, and mainly relates to a data sending method and a user equipment. The data sending method comprises: performing signal detection on at least one first resource subset in a first resource set, and determining a second resource subset; determining a target resource set according to the second resource subset; and sending data by selecting a resource from the target resource set, the second resource subset comprising the following at least one resource: all resources or occupied resources in the at least one first resource subset, a reserved resource in the first resource set, a potential reserved resource in the first resource set and a retransmitted resource in the first resource set. Signal detection on performed on part of resources in the first resource set, and a second resource subset is excluded according to the signal detection result; because the second resource subset comprises at least one of multiple potential unavailable resources, so that the probability of resource conflicts caused when a P-UE selects a resource in a target resource set is greatly reduced, thereby improving the data transmission reliability.

Description

Data transmission method and user equipment

Technical field

The present disclosure relates to the field of communications technologies, and in particular, to a data sending method and user equipment.

Background technique

With the continuous development of LTE (Long Term Evolution) communication technology, direct communication of D2D (Device to Device) has emerged. The D2D technology enables direct communication between the UEs (User Equipments) on the resources provided by the base stations (ie, carriers) without forwarding through the base station, which largely solves the existing spectrum shortage and network load. Overweight and other issues.

With the development of D2D technology, V2X (Vehicle to Everything) technology has been successfully established as a major application of D2D technology. V2X is V2V (Vehicle to Vehicle), V2P (Vehicle to Pedestrian), vehicle to pedestrian ) and the general name of V2I (Vehicle to Internet, vehicle to network), as shown in Figure 1A. In the V2V technology, resource pools (resource sets) can be signal-detected by sensing technology to determine idle resources in a resource set. The resource pool includes an SA resource pool and a data resource pool. The existing sensing technologies are divided into two types: the first one is to measure the energy of the resource pool, for example, the RSRP (Reference Signal Receiving Power) or the RSRQ (Reference Signal Receiving Power). quality). If the energy measurement of the resource exceeds a certain energy threshold, the UE determines that the resource has been occupied, otherwise it determines that the resource is an idle resource. The second technology is the SA decoding technology: the UE receives the SA data packet sent by other UEs in the SA resource set, and the SA data packet is used to indicate resource indication information of other UEs to transmit data this time, and resource indication information of the next transmission data (ie, Reserve resources). If the resource indication information is included in the SA data packet, the UE may parse the SA data packet to determine resources occupied by other UEs in the Data resource pool. If the resource indication information is not included in the SA data packet, it is determined that the resource corresponding to the SA is not occupied. The UE needs to transmit data on unoccupied resources. For the current V2V, both the first technology and the second technology use a fixed-size Sensing window to detect the resource pool. As shown in FIG. 1B, the perceptual window size of each UE is a time window of 1 s, and the UE adopts a sensing technology in the sensing window. Signal detection is performed on the resource pool, and the signal is detected as an unoccupied resource, and is determined as an idle resource, and then an appropriate resource is selected in the idle resource for data transmission.

V2P technology refers to communication between an in-vehicle device (V-UE) and a pedestrian's handheld device (P-UE). V2P technology can also use the same sensing technology in V2V technology to detect the resource pool. For the handheld terminal P-UE, if all the resources in the sensing window of 1s are detected, the power consumption will be very large. In order to save the power consumption of the P-UE, the P-UE only performs signal detection on some resources corresponding to the resource concentration of 100 ms in the 1s sensing window. If the signal detection result indicates that there are more resources available on the part of the resources, the resource is randomly selected from the available resources in the part of the resources, and if the signal detection result indicates that the available resources on the part of the resources are relatively small, the proprietary random resource is used. Randomly select a resource to send data. The proprietary random resource set refers to a set of resources dedicated to the P-UE and dedicated to random selection.

In the existing V2P technology, when the signal detection result indicates that there are more resources available on a part of resources, only the resources for data transmission are selected among the available resources on some resources, and the available resources on some resources are less than the ten of the resource pool. In one part, other UEs also compete for resources in the part of the resources. Therefore, the resources for data transmission are selected only among the available resources on some resources, which easily causes resource conflicts between the P-UE and other UEs. Moreover, since the private random resource set and the resource set (the SA resource set and the Data resource set) overlap, the overlapped part is likely to have been occupied by other UEs, or contains reserved resources of other UEs, and therefore, when the signal detection result When the available resources on the part of the resources are relatively small, if the randomly selected resources are included in the overlapping part, the probability that the P-UE will generate a resource conflict with other UEs is large, and the data transmission fails.

Summary of the invention

In order to improve the resource utilization, the embodiment of the present disclosure provides a data sending method and user equipment. The technical solution is as follows:

In a first aspect, an embodiment of the present disclosure provides a data sending method, where the method includes:

Performing signal detection on at least one first resource subset in the first resource set, determining a second resource subset; determining a target resource set according to the second resource subset; and selecting a resource from the target resource set to perform data transmission; The at least one first resource subset is a subset of the first resource set, and the second resource subset includes at least one resource: an occupied resource or the at least one of the at least one first resource subset a first resource subset; a reserved resource in the first resource set; a potential reserved resource in the first resource set; and a retransmitted resource in the first resource set.

The P-UE may perform signal detection on a part of resources corresponding to the preset time window, where the first resource set may refer to a (time-frequency) resource corresponding to the preset time window.

Performing signal detection on a part of resources in the first resource set, and determining a second resource subset to be excluded according to the signal detection result, where the second resource subset includes at least one first resource subset of the first resource subset A resource or at least one first resource subset; a reserved resource in the first resource set; a potential reserved resource in the first resource set; and at least one of the retransmitted resources in the first resource set, such that the P-UE is in the target The probability of resource conflicts caused by resource selection in resources is greatly reduced, and the reliability of data transmission is improved.

In a possible implementation manner, if the second resource subset includes the reserved resource in the first resource set, the P-UE determines the occupied resource or the at least one first resource in the at least one first resource subset The process of the subset may be: performing signal detection on any resource in the at least one first resource subset, obtaining a frequency domain location and a time domain interval for data transmission by other UEs; and performing the frequency in the first resource set The resources corresponding to the domain location and the time domain interval are determined as reserved resources in the first resource set. By determining the reserved resource in the first resource set as the resource to be excluded, the probability of resource conflict caused by the P-UE performing resource selection can be reduced, thereby improving the reliability of data transmission.

In a possible implementation, if the second resource subset includes the potential reserved resource in the first resource set, the process of determining, by the P-UE, the reserved resource in the first resource set may be:

Performing signal detection on any resource in the first resource subset to obtain a frequency domain location and a data transmission period for other UEs to perform data transmission; and the data transmission period and the frequency domain location in the first resource set The corresponding resource is determined to be a potential reserved resource in the first resource set. By determining the potential reserved resource in the first resource set as the resource to be excluded, the probability of resource conflict caused by the P-UE performing resource selection can be reduced, thereby improving the reliability of data transmission.

In a possible implementation, if the second resource subset includes the retransmission resource in the first resource set, the process of determining, by the P-UE, the retransmission resource in the first resource set may be: Determining, by a resource in a subset of resources, signal detection, obtaining a frequency domain location and a time domain interval for retransmission of data by other UEs; determining a resource corresponding to the frequency domain location and the time domain interval in the first resource set Retransmitting resources for the first resource set. By determining the retransmission resource in the first resource set as the resource to be excluded, the probability of resource conflict caused by the P-UE when the resource is selected may be reduced, thereby improving the reliability of data transmission.

In a possible implementation, the determining, according to the second subset of resources, the process of determining a target resource set may be: determining a first difference set between the first resource set and the second resource subset, according to the Narrative Determining the target resource set; or determining a second difference set of the second resource set and the second resource subset, determining the second difference set as the target resource set; or, according to The first difference set and the second difference set determine the target resource set. The second set of resources may be a set of resources for randomly selecting resources allocated for the P-UE. By excluding the second resource subset that is potentially unavailable in the first resource set or the second resource set, the resources included in the determined target resource set are sufficiently available, and resource conflicts are avoided, thereby improving the reliability of data transmission.

In a second aspect, an embodiment of the present disclosure provides a data sending method, where the method includes:

Performing signal detection on at least one first resource subset in the first resource set, determining a second resource subset; determining a target resource set according to the second resource subset; and selecting a resource from the target resource set to perform data transmission; The at least one first resource subset is a subset of the first resource set, and the second resource subset includes at least one resource: a first resource subset with an RSRP value higher than a preset energy threshold or The RSRP value is higher than the first resource subset of the preset energy threshold and the surrounding resources; the RSRP value is higher than the reserved resource subset corresponding to the first resource subset of the preset energy threshold; the RSRP value is lower than The occupied resource in the first resource subset of the preset energy threshold; the reserved resource in the first resource set; the potential reserved resource in the first resource set; and the retransmitted resource in the first resource set . The P-UE may perform signal detection on a part of resources corresponding to the preset time window, where the first resource set may refer to a (time-frequency) resource corresponding to the preset time window.

Performing signal detection on a part of the resources in the first resource set, and determining a second resource subset to be excluded according to the signal detection result, where the second resource subset includes at least one of a plurality of potential unavailable resources, so that P - The probability of resource conflicts generated by the UE selecting resources in the target resource set is greatly reduced, and the reliability of data transmission is improved.

In a possible implementation, if the second resource subset includes a first resource subset whose RSRP value is higher than the preset energy threshold, determining a first resource subset whose RSRP value is higher than a preset energy threshold. The process may be: performing signal detection on each of the at least one first resource subset; and determining, according to the signal detection result, an RSRP average value of all resources in each of the first resource subsets; The first resource subset in which the average value of the RSRP in the first resource set is higher than the preset energy threshold is determined as the first resource subset in which the RSRP value is higher than the preset energy threshold. The first resource subset with the RSRP value in the first resource set being higher than the preset energy threshold is determined as the resource to be excluded, which can reduce the probability of the resource conflict caused by the P-UE when the resource is selected, thereby improving the reliability of the data transmission. Sex.

In a possible implementation, the preset time window corresponding to the first resource set includes multiple sub-time windows, and each first resource subset corresponds to one sub-time window, if the second resource subset includes RSRP. The process of determining, by the P-UE, the first resource subset with the RSRP value higher than the preset energy threshold and the resources around the first resource subset and the surrounding resources may be:

Performing signal detection on each of the at least one first resource subset; determining, according to the signal detection result, the first resource subset whose RSRP value is higher than the preset energy threshold;

Determining, by the specified sub-time window corresponding to the first resource subset that the RSRP value is higher than the preset energy threshold, determining, by the resource corresponding to the specified sub-time window, that the RSRP value is higher than the preset energy threshold. The first resource subset and the resources surrounding it; or the first resource group and the first resource subset whose RSRP value is higher than the preset energy threshold are within a preset time domain interval, Determining a resource around the first subset of resources whose RSRP value is higher than the preset energy threshold.

The first resource subset with the RSRP value in the first resource set being higher than the preset energy threshold and the resources in the surrounding resource are determined as the resources to be excluded, thereby reducing the probability of the resource conflict caused by the P-UE when performing resource selection, thereby Improve the reliability of data transmission.

In a possible implementation manner, if the second resource subset includes a reserved resource subset corresponding to a first resource subset whose RSRP value is higher than a preset energy threshold, the P-UE determines that the RSRP value is higher than a preset. The process of reserving the subset of resources corresponding to the first subset of resources of the energy threshold may be:

Performing signal detection on each of the at least one first resource subset; determining, according to the signal detection result, the first resource subset and the other UEs that have an RSRP value higher than the preset energy threshold a data transmission period; in the first resource set, a resource that meets the data transmission period with a first resource subset whose RSRP value is higher than the preset energy threshold is determined as the reserved resource subset . Determining the reserved resource subset corresponding to the first resource subset with the RSRP value of the first resource set that is higher than the preset energy threshold as the resource to be excluded, the probability of the resource conflict caused by the P-UE when the resource is selected may be reduced, thereby Improve the reliability of data transmission.

In a possible implementation manner, if the second resource subset includes the reserved resource in the first resource set, the P-UE determines that the second resource subset includes the reserved resource in the first resource set, And performing signal detection on any resource in the at least one first resource subset, obtaining a frequency domain location and a time domain interval for performing data transmission by other UEs; and performing the frequency domain location and the time domain in the first resource set The resource corresponding to the interval is determined as the reserved resource in the first resource set. By determining the reserved resource in the first resource set as the resource to be excluded, the probability of resource conflict caused by the P-UE performing resource selection can be reduced, thereby improving the reliability of data transmission.

In a possible implementation manner, if the second resource subset includes potential reserved resources in the first resource set, the P-UE determines that the second resource subset includes potential reserved resources in the first resource set. The process may be: performing signal detection on any resource in the first resource subset, obtaining a frequency domain location and a data transmission period of data transmission by other UEs; and performing the data transmission period and the The resource corresponding to the frequency domain location is determined as a potential reserved resource in the first resource set. By determining the potential reserved resource in the first resource set as the resource to be excluded, the probability of resource conflict caused by the P-UE performing resource selection can be reduced, thereby improving the reliability of data transmission.

In a possible implementation, if the second resource subset includes the retransmission resource in the first resource set, the P-UE determines that the second resource subset includes the retransmission resource in the first resource set. And performing signal detection on any of the resources in the first resource subset, and obtaining a frequency domain location and a time domain interval for performing data retransmission by other UEs; and collecting the frequency domain location and the time domain by using the first resource The resource corresponding to the interval is determined to be a retransmission resource in the first resource set. By determining the retransmission resource in the first resource set as the resource to be excluded, the probability of resource conflict caused by the P-UE when the resource is selected may be reduced, thereby improving the reliability of data transmission.

In a possible implementation, the determining, according to the second subset of resources, the process of determining a target resource set may be: determining a first difference set between the first resource set and the second resource subset, according to the Determining, by the first difference set, the target resource set; or determining a second difference set of the second resource set and the second resource subset, determining the second difference set as the target resource set; or Determining the target resource set according to the first difference set and the second difference set. The second set of resources may be a set of resources for randomly selecting resources allocated for the P-UE. By excluding the second resource subset that is potentially unavailable in the first resource set or the second resource set, the resources included in the determined target resource set are sufficiently available, and resource conflicts are avoided, thereby improving the reliability of data transmission.

In a third aspect, an embodiment of the present disclosure provides a user equipment, including:

Processor, transceiver unit;

a memory for storing processor executable instructions;

The processor is configured to: perform signal detection on at least one first resource subset in the first resource set, determine a second resource subset, where the at least one first resource subset is the first resource set a subset of the target resource set according to the second subset of resources;

The transceiver unit is configured to select a resource from the target resource set for data transmission;

The second resource subset includes at least one of the following resources:

The occupied resources of the at least one first resource subset or the at least one first resource subset; the reserved resources in the first resource set; the potential reserved resources in the first resource set; Retransmit resources in a centralized resource.

The processor is also configured to perform the data transmission method provided by any of the possible implementations of the first aspect described above. The technical effects obtained by the third aspect are similar to those obtained by the corresponding technical means in the first aspect, and are not described herein again.

In a fourth aspect, an embodiment of the present disclosure provides a user equipment, including:

Processor, transceiver unit;

a memory for storing processor executable instructions;

The processor is configured to perform signal detection on at least one first resource subset in the first resource set, to determine a second resource subset, where the at least one first resource subset is the first resource set a subset; determining a target resource set according to the second resource subset;

The second resource subset includes at least one of the following resources:

The first resource subset with the RSRP value higher than the preset energy threshold or the first resource subset with the RSRP value higher than the preset energy threshold and the resources surrounding it; the RSRP value is higher than the first preset energy threshold a reserved resource subset corresponding to the resource subset; an occupied resource in the first resource subset having an RSRP value lower than the preset energy threshold; a reserved resource in the first resource set; and the first resource concentration potential Reserved resources; retransmitted resources in the first resource set.

The processor is also configured to perform the data transmission method provided by any of the possible implementations of the second aspect above. The technical effects obtained by the fourth aspect are similar to those obtained by the corresponding technical means in the second aspect, and are not described herein again.

In a fifth aspect, an embodiment of the present disclosure provides a data sending apparatus, where the apparatus includes:

a detecting module, configured to perform signal detection on at least one first resource subset in the first resource set, and determine a second resource subset, where the at least one first resource subset is a subset of the first resource set;

a determining module, configured to determine a target resource set according to the second resource subset;

a sending module, configured to select a resource from the target resource set to send data;

The second resource subset includes at least one of the following resources:

The occupied resource or the at least one first resource sub of the at least one first resource subset a set of reserved resources in the first resource set; a potential reserved resource in the first resource set; and a retransmitted resource in the first resource set.

In a possible implementation, if the second resource subset includes the reserved resource in the first resource set, the detecting module is configured to perform signal on any resource in the at least one first resource subset Detecting, obtaining a frequency domain location and a time domain interval for data transmission by other UEs; determining, in the first resource set, resources corresponding to the frequency domain location and the time domain interval as reserved resources in the first resource set .

In a possible implementation, if the second resource subset includes a potential reserved resource in the first resource set, the detecting module is configured to perform signal detection on any resource in the first resource subset. Obtaining a frequency domain location and a data transmission period for data transmission by other UEs; determining, in the first resource set, the data transmission period and the resource corresponding to the frequency domain location as potential pre-concentrations in the first resource concentration Keep resources.

In a possible implementation, if the second resource subset includes the retransmission resource in the first resource set, the detecting module is configured to perform signal detection on any resource in the first resource subset. Obtaining a frequency domain location and a time domain interval for the data retransmission by the other UEs; determining the resources corresponding to the frequency domain location and the time domain interval in the first resource set as retransmission resources in the first resource set .

In a possible implementation, the determining module is configured to determine a first difference set of the first resource set and the second resource subset, and determine the target resource set according to the first difference set; or Determining, a second difference set of the second resource set and the second resource subset, determining the second difference set as the target resource set; or, according to the first difference set and the second difference Set, determining the target resource set.

The technical effects obtained by the fifth aspect are similar to those obtained by the corresponding technical means in the first aspect, and are not described herein again.

In a sixth aspect, a data transmitting apparatus is provided, the apparatus comprising:

The second resource subset includes at least one of the following resources:

The first resource subset or RSRP value whose RSRP value is higher than the preset energy threshold is higher than the preset energy a first resource subset of the threshold and the surrounding resources; the RSRP value is higher than the reserved resource subset corresponding to the first resource subset of the preset energy threshold; and the RSRP value is lower than the first preset energy threshold The occupied resources in the resource subset; the reserved resources in the first resource set; the potential reserved resources in the first resource set; and the retransmitted resources in the first resource set.

In a possible implementation, if the second resource subset includes a first resource subset whose RSRP value is higher than the preset energy threshold, the detecting module is configured to use the at least one first resource sub Generating each of the first subset of resources to perform signal detection; determining an RSRP average value of all resources in each of the first resource subsets according to the signal detection result; and setting an average RSRP value of the first resource set to be higher than the pre-predetermined The first subset of resources of the energy threshold is determined to be the first subset of resources whose RSRP value is higher than the preset energy threshold.

In a possible implementation, the preset time window corresponding to the first resource set includes multiple sub-time windows, and each first resource subset corresponds to one sub-time window, if the second resource subset includes RSRP. The first resource subset and the surrounding resources whose value is higher than the preset energy threshold, and the detecting module is configured to:

In a possible implementation, if the second resource subset includes a reserved resource subset corresponding to a first resource subset whose RSRP value is higher than a preset energy threshold, the detecting module is configured to use the at least Performing signal detection on each of the first resource subsets in the first resource subset; determining, according to the signal detection result, the data transmission period of the first resource subset and the other UEs whose RSRP value is higher than the preset energy threshold; And in the first resource set, the resource that meets the data transmission period with the first resource subset whose RSRP value is higher than the preset energy threshold is determined as the reserved resource subset.

In a possible implementation, if the second resource subset includes the reserved resource in the first resource set, the detecting module is configured to perform signal on any resource in the at least one first resource subset Detecting, obtaining a frequency domain location and a time domain interval for data transmission by other UEs; determining, in the first resource set, resources corresponding to the frequency domain location and the time domain interval as the first resource concentration Reserved resources.

In a possible implementation, if the second resource subset includes the retransmission resource in the first resource set, the signal detection module is configured to perform signal detection on any resource in the first resource subset. And obtaining, by the other UE, a frequency domain location and a time domain interval for performing data retransmission; determining, by the first resource set, the frequency domain location and the resource corresponding to the time domain interval as a retransmission in the first resource set Resources.

In a possible implementation, the determining module is configured to determine a first difference set of the first resource set and the second resource subset, determine the target resource set according to the first difference set; or determine Determining, by the second resource set and the second difference set of the second resource subset, the second difference set as the target resource set; or determining, according to the first difference set and the second difference set, The target resource set.

The beneficial effects brought by the technical solutions provided by the embodiments of the present disclosure are:

DRAWINGS

1 is a schematic diagram of a V2X architecture provided by Embodiment 1 of the present disclosure;

2 is a schematic structural diagram of a user equipment according to an embodiment of the present disclosure;

3A is a flowchart of a data sending method according to an embodiment of the present disclosure;

FIG. 3B is a schematic diagram of three signal detection schemes of a P-UE according to an embodiment of the present disclosure; FIG.

FIG. 3C is a schematic diagram of a reserved resource in a first resource set, a potential reserved resource in a first resource set, and a retransmitted resource in a first resource set according to an embodiment of the present disclosure;

4A is a flowchart of a data sending method according to an embodiment of the present disclosure;

FIG. 4B is a schematic diagram of a first resource subset and a surrounding resource thereof with an RSRP value higher than a preset energy threshold according to an embodiment of the present disclosure; FIG.

4C is a schematic diagram of a first resource subset and a surrounding resource thereof with an RSRP value higher than a preset energy threshold according to an embodiment of the present disclosure;

4D is a schematic diagram of a reserved resource subset corresponding to a first resource subset with an RSRP value higher than a preset energy threshold according to an embodiment of the present disclosure;

FIG. 5 is a block diagram of another data transmitting apparatus according to an embodiment of the present disclosure;

FIG. 6 is a block diagram of another data transmitting apparatus according to an embodiment of the present disclosure.

detailed description

The embodiments of the present disclosure will be further described in detail below with reference to the accompanying drawings.

In order to facilitate the understanding of the implementation of the present disclosure, some basic concepts involved in the present disclosure will be described with reference to FIG. 1. The UE may be a terminal, a mobile station, a subscriber unit, a station. Alternatively, or alternatively, it can be a cellular phone, a personal digital assistant (PDA), a wireless modem, a wireless communication device, a handheld, a laptop computer, A cordless phone, a wireless local loop (WLL) station, etc., the UE can be configured in any mobile device, such as a vehicle, a pedestrian's handheld device, or the like. The UE provided by the embodiment of the present disclosure includes a V-UE configured to the vehicle device, and a handheld device P-UE of the pedestrian. Referring to FIG. 2, the embodiment provides a user equipment, where the user equipment is a P-UE, and the user equipment can be used to perform the data sending method provided in this embodiment. Referring to FIG. 2, the user equipment 200 can include a transceiver unit 110, a memory 120 including one or more computer readable storage media, an input unit 130, a display unit 140, a sensor 150, an audio circuit 160, and a WiFi (Wireless Fidelity). The module 170 includes a processor 180 having one or more processing cores, and a power supply 190 and the like. It will be understood by those skilled in the art that the user equipment structure shown in FIG. 2 does not constitute a limitation to the user equipment, and may include more or less components than those illustrated, or a combination of certain components, or different component arrangements. among them:

The transceiver unit 110 can be used for transmitting and receiving information or receiving and transmitting signals during a call. Specifically, after receiving the downlink information of the base station, the downlink information is processed by one or more processors 180. In addition, the data related to the uplink is sent to the base station. . Generally, the transceiver unit 110 can be an RF (Radio Frequency, RF) circuit RF circuit, including but not limited to an antenna, at least one amplifier, tuner, one or more oscillators, a Subscriber Identity Module (SIM) card, a transceiver, a coupler, LNA (Low Noise Amplifier, low Noise amplifier), duplexer, etc. In addition, the transceiver unit 110 can also communicate with the network and other devices through wireless communication. The wireless communication may use any communication standard or protocol, including but not limited to GSM (Global System of Mobile communication), GPRS (General Packet Radio Service), CDMA (Code Division Multiple Access). , Code Division Multiple Access), WCDMA (Wideband Code Division Multiple Access), LTE (Long Term Evolution), e-mail, SMS (Short Messaging Service), and the like.

The memory 120 can be used to store software programs and modules, and the processor 180 executes various functional applications and data processing by running software programs and modules stored in the memory 120. The memory 120 may mainly include a storage program area and a storage data area, wherein the storage program area may store an operating system, an application required for at least one function (such as a sound playing function, an image playing function, etc.), and the like; the storage data area may be stored according to Data created by the use of the user device 200 (such as audio data, phone book, etc.), and the like. Moreover, memory 120 can include high speed random access memory, and can also include non-volatile memory, such as at least one magnetic disk storage device, flash memory device, or other volatile solid state storage device. Accordingly, memory 120 may also include a memory controller to provide access to memory 120 by processor 180 and input unit 130.

The input unit 130 can be configured to receive input numeric or character information and to generate keyboard, mouse, joystick, optical or trackball signal inputs related to user settings and function controls. In particular, input unit 130 can include touch-sensitive surface 131 as well as other input devices 132. Touch-sensitive surface 131, also referred to as a touch display or trackpad, can collect touch operations on or near the user (such as a user using a finger, stylus, etc., on any suitable object or accessory on touch-sensitive surface 131 or The operation near the touch-sensitive surface 131) and driving the corresponding connecting device according to a preset program. Alternatively, the touch-sensitive surface 131 can include two portions of a touch detection device and a touch controller. Wherein, the touch detection device detects the touch orientation of the user, and detects a signal brought by the touch operation, and transmits the signal to the touch controller; the touch controller receives the touch information from the touch detection device, converts the touch information into contact coordinates, and sends the touch information. The processor 180 is provided and can receive commands from the processor 180 and execute them. In addition, the touch-sensitive surface 131 can be implemented in various types such as resistive, capacitive, infrared, and surface acoustic waves. In addition to the touch-sensitive surface 131, the input unit 130 can also include other input devices 132. Specifically, other input devices 132 may include, but are not limited to, a physical keyboard, function keys (such as volume control buttons, switch buttons, etc.), One or more of a trackball, a mouse, a joystick, and the like.

The display unit 140 can be used to display information entered by the user or information provided to the user and various graphical user interfaces of the user device 200, which can be composed of graphics, text, icons, video, and any combination thereof. The display unit 140 may include a display panel 141. Alternatively, the display panel 141 may be configured in the form of an LCD (Liquid Crystal Display), an OLED (Organic Light-Emitting Diode), or the like. Further, the touch-sensitive surface 131 may cover the display panel 141, and when the touch-sensitive surface 131 detects a touch operation thereon or nearby, it is transmitted to the processor 180 to determine the type of the touch event, and then the processor 180 according to the touch event The type provides a corresponding visual output on display panel 141. Although in FIG. 2, touch-sensitive surface 131 and display panel 141 are implemented as two separate components to implement input and input functions, in some embodiments, touch-sensitive surface 131 can be integrated with display panel 141 for input. And output function.

User device 200 may also include at least one type of sensor 150, such as a light sensor, motion sensor, and other sensors. Specifically, the light sensor may include an ambient light sensor and a proximity sensor, wherein the ambient light sensor may adjust the brightness of the display panel 141 according to the brightness of the ambient light, and the proximity sensor may close the display panel 141 when the user device 200 moves to the ear. And / or backlight. As a kind of motion sensor, the gravity acceleration sensor can detect the magnitude of acceleration in all directions (usually three axes). When it is stationary, it can detect the magnitude and direction of gravity. It can be used to identify the gesture of the mobile phone (such as horizontal and vertical screen switching, related Game, magnetometer attitude calibration), vibration recognition related functions (such as pedometer, tapping), etc.; as for the user equipment 200 can also be configured with gyroscopes, barometers, hygrometers, thermometers, infrared sensors and other sensors, here No longer.

The audio circuit 160, the speaker 161, and the microphone 162 can provide an audio interface between the user and the user device 200. The audio circuit 160 can transmit the converted electrical data of the received audio data to the speaker 161 for conversion to the sound signal output by the speaker 161; on the other hand, the microphone 162 converts the collected sound signal into an electrical signal by the audio circuit 160. After receiving, it is converted into audio data, and then processed by the audio data output processor 180, sent to the other user equipment via the RF circuit 110, or outputted to the memory 120 for further processing. The audio circuit 160 may also include an earbud jack to provide communication of the peripheral earphones with the user device 200.

WiFi is a short-range wireless transmission technology, and the user equipment 200 can help users to send and receive emails, browse web pages, and access streaming media through the WiFi module 170, which provides wireless broadband Internet access for users. Although FIG. 2 shows the WiFi module 170, it can be understood that it does not belong to the necessary configuration of the user equipment 200, and can be completely within the scope of not changing the essence of the invention as needed. And omitted.

The processor 180 is the control center of the user device 200, connecting various portions of the entire handset with various interfaces and lines, by running or executing software programs and/or modules stored in the memory 120, and recalling data stored in the memory 120. The various functions and processing data of the user equipment 200 are executed to perform overall monitoring of the mobile phone. Optionally, the processor 180 may include one or more processing cores; preferably, the processor 180 may integrate an application processor and a modem processor, where the application processor mainly processes an operating system, a user interface, an application, and the like. The modem processor primarily handles wireless communications. It can be understood that the above modem processor may not be integrated into the processor 180.

The user equipment 200 also includes a power source 190 (such as a battery) that supplies power to the various components. Preferably, the power source can be logically coupled to the processor 180 through the power management system to manage functions such as charging, discharging, and power management through the power management system. . Power supply 190 may also include any one or more of a DC or AC power source, a recharging system, a power failure detection circuit, a power converter or inverter, a power status indicator, and the like.

Although not shown, the user equipment 200 may further include a camera, a Bluetooth module, and the like, and details are not described herein again. Specifically, in this embodiment, the display unit of the user equipment is a touch screen display, the user equipment further includes a memory, the memory stores one or more programs, and the processor 180 is configured to call the program code stored in the memory. The data transmission method shown in FIGS. 3A and 4A below is performed.

In the embodiment of the present disclosure, the P-UE may perform signal detection on a part of the resources in the preset time window corresponding resources, that is, using partial sensing technology (Partial Sensing) for signal detection. The preset time window may be a time window of 1 s (seconds) or the like. The P-UE can perform signal detection on some resources in the corresponding resources of the preset time window by using the following three schemes:

In the first scheme, the P-UE continuously detects the resource corresponding to the specified time window in the preset time window, where the length of the specified time window is smaller than the preset time window, and the specified time window may be in the preset time window. In any position, the specified time window can be a time window of 100 ms (milliseconds) in succession. A schematic diagram of such a signal detection scheme is shown in (a) of FIG. 3B.

In the second scheme, the P-UE periodically performs signal detection within a preset time window. The preset time window corresponding to the mode is divided into multiple sub-time windows, and the P-UE performs signal detection at the same position of each sub-time window. For example, when the preset time window is 1 s, the preset time can be The window is divided into 10 sub-time windows, each sub-time window is 100ms, and the P-UE can correspond to the first 10ms in each sub-time window. The resource is subjected to signal detection, as shown in FIG. 3B (b), which is a schematic diagram of the signal detection scheme. The region of the twill fill in each sub-time window in (b) of FIG. 3B corresponds to a first subset of resources. Certainly, the relative position of each of the first resource subsets of the signal detection is the same as that of the corresponding sub-time window. In this embodiment, only the first 10 ms of each first resource subset in the corresponding sub-time window is taken as an example.

In the third mode, the P-UE randomly selects resources corresponding to the preset time domain length to perform signal detection at regular time intervals in a preset time window. The preset time window corresponding to the mode is divided into multiple sub-time windows, and the P-UE performs signal detection at different positions of each sub-time window. For example, when the preset time window is 1 s, the time domain interval is 100 ms. Then, the preset time window can be divided into 10 sub-time windows, and each sub-time window is 100 ms. The P-UE may perform signal detection on a resource corresponding to 10 ms randomly selected in each sub-time window, and randomly select a resource corresponding to a preset time domain length of 10 ms in each sub-time window for signal detection, and the preset time domain of 10 ms The resource corresponding to the length is the first resource subset. For example, if the starting subframe number of the first sub-time window in the preset time window is 0, the P-UE can perform signal detection on the resource corresponding to the subframe number 22-31 in the first sub-time window. In the second sub-time window, signal detection may be performed on the resource corresponding to the subframe number 161-170, as shown in FIG. 3B (c), which is a schematic diagram of the signal detection scheme. The region of the twill fill in each sub-time window in (c) of FIG. 3B corresponds to a first subset of resources.

FIG. 3A is a flowchart of a data sending method according to an embodiment of the present disclosure. Referring to FIG. 3A, the following steps are included:

301. The P-UE performs signal detection on at least one first resource subset in the first resource set, and determines a second resource subset.

The P-UE may perform signal detection on the at least one first resource subset in the first resource set by using any one of the foregoing three solutions, which is not limited by the embodiment of the disclosure. The first resource set may refer to a (time-frequency) resource corresponding to the preset time window, and the at least one first resource subset is a subset of the first resource set. If the signal detection is performed by using the foregoing first scheme, the at least one first resource subset is consecutively in the time domain, and the resource corresponding to the specified time window is a collection of at least one first resource subset. If the second detection scheme is used for signal detection, the resource corresponding to the same location in each sub-time window is the first resource subset, and the number of at least one first resource subset is equal to the number of sub-time windows. If the second detection scheme is used for signal detection, the resource detected in each sub-time window is a first resource subset, and the number of at least one first resource subset is equal to the number of sub-time windows.

After performing signal detection on the at least one resource subset, the P-UE may determine the second resource subset according to the signal detection result, where the second resource subset includes at least one of the following resources:

(1) an occupied resource or at least one first resource subset of at least one first resource subset;

(2) Reserved resources in the first resource set;

(3) Potential reserved resources in the first resource concentration;

(4) Retransmission resources in the first resource set.

It should be noted that, in this embodiment, the resource indicated by the second resource subset is an unavailable resource, or is a resource to be excluded, and the P-UE needs to select a resource other than the resource indicated by the second resource subset. Data is sent to reduce the probability of resource conflicts.

In this embodiment, the P-UE may determine the second resource subset to be excluded according to the signal detection result of performing signal detection on the at least one first resource subset in the first resource set. The following describes the process of determining resources that may be included in the second subset of resources for the resources shown in (1)(2)(3)(4) above:

The process of determining, by the P-UE, the occupied resources or the at least one first resource subset in the at least one first resource subset may be:

For each resource in the at least one resource subset, the P-UE may perform signal detection on the resource: the P-UE parses the received SA data packet carried by the resource, and if the SA data packet is decoded, If the value is successful, the energy measurement is performed on the signal carried by the resource, for example, the RSRP value or the RSRQ value of the signal carried by the resource is measured. If the energy value of the measurement indication signal is greater than the energy threshold, the resource is determined to be an occupied resource. . The energy threshold may be configured by the base station to the P-UE. The higher the service priority corresponding to the data carried by the resource, the lower the corresponding preset energy threshold.

It should be noted that the second resource subset may include at least one occupied resource in the first resource subset or all resources in the at least one first resource subset. The P-UE may determine, according to the signal detection result of the at least one resource subset, whether the second resource subset includes the occupied resources of the at least one first resource subset or all resources of the at least one first resource subset. For example, the P-UE may determine, according to the signal detection result, a ratio of the occupied resource in the at least one first resource subset to the at least one first resource subset, and if the ratio exceeds a preset ratio, determine the second resource subset. All resources in the at least one first resource subset are included, otherwise, the second resource subset is determined to include the occupied resources in the at least one first resource subset. The preset ratio may be configured by the base station to the P-UE, or may be configured by the P-UE according to the service requirement, and the preset ratio may be 60%, 70%, 80%, etc., which is not limited by the embodiment of the disclosure. P-UE when the ratio of the occupied resources in the at least one first resource subset to the at least one first resource subset exceeds a preset ratio The resource usage of the at least one first resource subset is determined to be large, and the data transmission is easily generated in the unoccupied resource corresponding to the at least one first resource subset, and the P-UE is avoided in order to avoid resource conflict. The data transmission needs to be performed on resources other than the at least one first resource subset, and therefore, the P-UE includes the at least one first resource subset in the second resource subset.

The process of determining, by the P-UE, the reserved resources in the first resource set may be:

The P-UE performs signal detection on any one of the at least one first resource subset, and the signal detection process is the same as the above signal detection process. The resource indication information obtained by the P-UE by parsing the SA data packet includes a frequency domain location and a time domain interval for other UEs to perform data transmission. After the P-UE obtains the frequency domain location and the time domain interval of the data transmission by the other UE, the resource corresponding to the frequency domain location and the time domain interval may be determined as the reserved resource in the first resource set in the first resource set. The reserved resource is used for data transmission by other UEs next time.

For example, the time domain interval can be represented by P*i, where “*” represents a multiplication sign, P can be equal to 100, 20, or 50, and the value range of i is [0, 1, 2, 3, .. , 10], where i is equal to 0, indicating that the resource 10 does not have a corresponding reserved resource. When i is not zero, the P-UE determines the time domain location of the next data transmission by the other UE according to the time domain location of the current resource and the time domain interval, and may determine the frequency domain location of the data transmission by the determined other UEs. Reserved resources corresponding to the current resource. Assume that the time domain location of the current resource is TTI(n+d), and the time domain location of the next data transmission by other UEs is TTI(n+d+P*i). Where n and d are integers. (a) to (c) of FIG. 3C respectively show schematic diagrams of reserved resources in the first resource set detected by the corresponding signal detection scheme. A small square is used in Figure 3C to represent a resource, where a small black square indicates the currently detected resource and a small square filled with a diagonal fill indicates reserved resources.

The process of determining, by the P-UE, the potential reserved resources in the first resource set may be:

Signal detection is performed on any resource in the first resource subset, and the signal detection process is the same as the above signal detection process. The resource indication information obtained by the P-UE by parsing the SA data packet includes a frequency domain location and a data transmission period in which other UEs perform data transmission. After obtaining the frequency domain location and the data transmission period of the data transmission by the other UE, the P-UE may determine, in the first resource set, the resource corresponding to the data transmission period and the frequency domain location as the potential reserved resource in the first resource set.

It should be noted that the service data sent by the UE (including the P-UE and other UEs) is usually periodic. When the P-UE detects that a certain resource is occupied by other UEs, the frequency domain resources indicated by the resource are used. The resources that are periodically occupied by other UEs in this embodiment are called potential reserved resources. Therefore, in order to avoid resource conflicts as much as possible, P-UE The potential reserved resources in the first resource set may be determined according to the signal detection result.

For example, the data transmission period may be represented by T, and T is used to indicate a multiple of the data transmission period and the default transmission period. When T is 0, it indicates that the data transmitted by other UEs is not periodically transmitted data, when T is 1 It indicates that other UEs perform data transmission according to the default transmission period. When T is 2, it indicates that the data transmission period of other UEs is twice the default transmission period, and so on. The default transmission period may be pre-configured by the base station to the P-UE. For example, the default transmission period may be 100 ms. Of course, the SA data packet can directly carry the specific value of the data transmission period, for example, the carried data transmission period is 50 ms. After determining the data transmission period of the other UE, the P-UE may determine the time domain location of the data transmission by the other UE in the first resource set according to the data transmission period, and assume that the time domain location of the current resource is TTI (120). The data transmission period is 200 ms, and the P-UE may determine that the time domain locations of the potential reserved resources in the first resource set are TTI (320), TTI (520), TTI (720), and TTI (920), respectively. In combination with the frequency domain locations of other UEs for data transmission, the P-UE may determine potential reserved resources in the first resource set. (a) to (c) of FIG. 3C respectively show schematic diagrams of potential reserved resources in the first resource set detected by the corresponding signal detection scheme. Among them, the white small squares represent potential reserved resources in the first resource set.

The process of determining, by the P-UE, the retransmitted resource in the first resource set may be:

Signal detection is performed on any resource in the first resource subset, and the signal detection process is the same as the above signal detection process. The resource indication information obtained by the P-UE by parsing the SA data packet includes the frequency domain location and the time domain interval of the data retransmission by other UEs, and the P-UE obtains the frequency domain location and the time domain interval of the data retransmission by other UEs. The resources corresponding to the frequency domain location and the time domain interval of the first resource set are determined as the retransmission resources in the first resource set.

In order to ensure the reliability of the data transmission, the other UEs repeatedly transmit the same data (that is, data retransmission), and carry the frequency domain location and the time domain interval for performing data retransmission in the SA data packet corresponding to the current transmission data. The P-UE determines that the retransmission resource in the first resource set is the same as the process of determining the reserved resource in the first resource set, and details are not repeatedly described herein. The difference is that the time domain interval for data retransmission and the time domain interval for data transmission may be different. (b) and (c) of FIG. 3C each show a schematic diagram of a retransmission resource in a first resource set detected by a corresponding signal detection scheme. The small squares filled with the grid in (b) and (c) of FIG. 3C represent the retransmission resources in the first resource set.

302. The P-UE determines the target resource set according to the second resource subset.

The P-UE may determine, according to the received resource selection or the triggering instruction of the resource reselection, the target resource set that can perform data transmission according to the second resource subset. P-UE can be excluded from the specified resource set The second subset of resources to determine a target resource set. The specified resource set may be the first resource set, or the specified resource set is the second resource set, or the specified resource set is the first resource set and the second resource set. The second set of resources may be a set of resources for randomly selecting resources allocated for the P-UE.

According to the content of the specified resource set, the manner in which the P-UE determines the target resource set according to the second resource subset can be classified into the following three types:

In the first mode, the P-UE excludes the second subset of resources from the first resource set to determine the target resource set.

For example, the P-UE determines a first difference set of the first resource set and the second resource subset, and determines a target resource set according to the first difference set. It can be seen from step 301 that the second resource subset is a subset of the first resource set, and the first difference set refers to resources other than the second resource subset in the first resource set. When receiving the trigger instruction of the resource selection, the P-UE may determine the target resource set in the third resource set according to the first difference set. The third resource set includes the same frequency domain resource as the first resource set, and the third resource set belongs to the first resource set in the time domain.

The following is a collection form to explain this way:

Assume that the first resource set is A, the at least one first resource subset is B, the at least one first resource subset is the occupied resource is B', and the reserved resource in the first resource set is C, the first resource The potential reserved resource E is concentrated, the retransmission resource F in the first resource set, and the target resource set is R1, and then the four (1)(2)(3)(4) in the second step of the second resource subset are assumed. For resources, the formula for the target resource set R1 is expressed as: R1=A–B–C–E–F or R1=A–B'–C–E–F. Of course, the formula of the R1 is different according to the resources included in the second resource subset. For example, if the second resource subset includes only the resource set B, then R1=A−B.

In the second mode, the P-UE excludes the second subset of resources from the second resource set to determine the target resource set.

For example, the P-UE may determine a second difference set of the second resource set and the second resource subset, and determine the second difference set as the target resource set. The P-UE, when receiving the triggering instruction of the resource selection, determines the second frequency domain resource indicated by the second resource subset, and may determine, as the second resource, the resource other than the second frequency domain resource corresponding resource in the second resource set. The difference set is determined as the target resource set. It should be noted that, in this embodiment, the time domain attribute of the resource may be disregarded when performing the difference set operation.

The following is a collection form to explain this way:

Assume that the second resource set is D, the at least one first resource subset is B, the at least one first resource subset is the occupied resource B', and the reserved resource in the first resource set is C, the first resource Concentrated potential In the reserved resource E and the retransmission resource F in the first resource set, and the target resource set is R2, it is assumed that the three resources in the second resource subset are (1)(2)(3)(4) in the above step 301. , the formula of the target resource set R2 is expressed as: R2=D–B–C–E–F or R2=D–B'–C–E–F. Considering that the second subset of resources is a subset of the first set of resources, and the second set of resources and the first set of resources have overlapping portions, the process of excluding the second subset of resources from the second set of resources is actually The second resource set excludes the portion of the second resource subset that overlaps with the second resource set. Therefore, the formula representation of the target resource set R2 can also be: R2=D–(D∩B)–(D∩C)–(D∩E)–(D∩F) or R2=D–(D∩C) – (D∩B')–(D∩E)–(D∩F).

In a third manner, the second subset of resources is excluded from the first set of resources and the second set of resources to determine a target set of resources.

In this manner, the P-UE determines a first difference set of the first resource set and the second resource subset, and determines a second difference set of the second resource set and the second resource subset; according to the first difference set and the first difference set Two sets of differences, determine the target resource set. The process of determining the target resource set according to the first difference set and the second difference set may be: determining the first target resource set according to the first difference set, the process is the same as the process of determining the target resource set in the first manner, This will not be repeated. The second difference set is determined as the second target resource set, and the process is the same as the process of determining the target resource set in the second mode, and is not described herein. A collection of the first target resource set and the second target resource set is then determined as the target resource set. The set of target resources R3=R1+R2 is represented by a set.

Of course, in the third mode, the P-UE may also first determine a collection of the first resource set and the second resource set, and then exclude the second resource subset from the collection to determine the target resource set, and the disclosure The embodiment does not limit this.

303. The P-UE selects a resource from the target resource set to send data.

The P-UE may randomly select one resource from the target resource set for data transmission, or select one resource in the target resource set to perform data transmission according to a preset selection rule.

The preset selection rule may be configured by the base station, or may be set by the P-UE. For example, the preset selection rule is configured to select a resource with the lowest energy in the target resource set for data transmission, and the like, which is not limited in this embodiment of the disclosure.

The method provided by the present disclosure provides signal detection by detecting a part of resources in the first resource set, and can determine a second resource subset to be excluded according to the signal detection result, where the second resource subset includes at least one of the first resource subsets. The occupied resource or the at least one first resource subset in the first resource subset; the reserved resource in the first resource set; the potential reserved resource in the first resource set; the first resource set At least one of the retransmission resources in the medium enables the P-UE to greatly reduce the probability of resource conflicts generated by selecting resources in the target resource set, thereby improving the reliability of data transmission.

In the data sending method shown in FIG. 3A, the second resource subset includes at least one occupied resource or at least one first resource subset in the first resource subset; the reserved resource in the first resource set; and the first resource concentration potential At least one of the reserved resource and the retransmitted resource in the first resource set. Other methods may be used in the embodiment of the present disclosure to determine resources included in the second subset of resources to be excluded, as shown in FIG. 4A.

FIG. 4A is a flowchart of a data sending method according to an embodiment of the present disclosure. Referring to FIG. 4A, the following steps are included:

401. The P-UE performs signal detection on at least one first resource subset in the first resource set, and determines a second resource subset.

In this embodiment, the P-UE may perform signal detection on the at least one first resource subset in the first resource set by using any one of the foregoing three solutions, which is not limited in this embodiment of the disclosure. The first resource set and the signal detection mode corresponding to the different solutions, the meaning of the at least one first resource subset is the same as the above step 301, and details are not described herein.

(1) a first resource subset whose RSRP value is higher than a preset energy threshold or a first resource subset whose RSRP value is higher than a preset energy threshold and resources around it;

(2) a reserved resource subset corresponding to the first resource subset whose RSRP value is higher than the preset energy threshold;

(3) the occupied resources in the first resource subset whose RSRP value is lower than the preset energy threshold;

(4) Reserved resources in the first resource set;

(5) Potential reserved resources in the first resource concentration;

(6) Retransmission resources in the first resource set.

It should be noted that, in this embodiment, the resource indicated by the second resource subset is an unavailable resource, or is a resource to be excluded, and the P-UE needs to be in the resource that is indicated by the resource indicated by the second resource subset. Select resources for data transmission to reduce the probability of resource conflicts.

In this embodiment, the P-UE may determine the second resource subset to be excluded according to the signal detection result of performing signal detection on the at least one first resource subset in the first resource set. The resources shown in (1)(2)(3)(4)(5)(6) in this step may be included in the second resource subset. The process of determining the resources is introduced:

The process of determining, by the P-UE, the first resource subset that the RSRP value is higher than the preset energy threshold may be:

The preset energy threshold may be pre-configured by the base station or set by the P-UE, which is not limited by the embodiment of the disclosure. The preset energy thresholds corresponding to different resources may be the same or different, and may be determined by the service priority of the data carried by the resources. For example, the higher the priority of the service corresponding to the data carried by the resource, the higher the corresponding preset energy threshold.

In this embodiment, after performing energy measurement on each resource in the at least one first resource subset, the P-UE may perform signal detection on each first resource subset in the at least one first resource subset; The detection result determines an RSRP average value of all resources in each first resource subset; the first resource subset in which the RSRP average value of the first resource set is higher than a preset energy threshold is determined as the RSRP value higher than a preset energy threshold. A subset of resources.

The process of determining, by the P-UE, the first resource subset and the surrounding resources whose RSRP value is higher than the preset energy threshold may be:

The P-UE performs signal detection on each of the first resource subsets of the at least one first resource subset; and determines, according to the signal detection result, the first resource subset whose RSRP value is higher than a preset energy threshold. The first resource subset that determines that the RSRP value is higher than the preset energy threshold is the same as the first resource subset that determines that the RSRP value is higher than the preset energy threshold, and details are not described herein again. After determining the first resource subset whose RSRP value is higher than the preset energy threshold, the P-UE may determine resources around the first resource subset whose RSRP value is higher than the preset energy threshold by using the following two methods:

In the first mode, the P-UE determines a specified sub-time window corresponding to the first resource subset whose RSRP value is higher than the preset energy threshold, and determines the resource corresponding to the specified sub-time window as the RSRP value higher than the preset energy threshold. A subset of resources and the resources around them.

As shown in FIG. 4B, taking the third scheme as an example, the preset time window corresponding to the first resource set includes 10 sub-time windows, which are numbered 0-9 from left to right, and a sub-time window with the number 1 is assumed. If the RSRP value of the corresponding first resource subset is higher than the preset energy threshold, determining that all resources corresponding to the sub-time window with the number 1 are the first resource subset with the RSRP value higher than the preset energy threshold and surrounding Resources. That is, the resource around the first resource subset whose RSRP value is higher than the preset energy threshold refers to the resource other than the first resource subset among the sub-time window corresponding to the numbered sub-time window.

In the second mode, the P-UE determines that the first resource group and the resource in the preset time domain interval of the first resource subset whose RSRP value is higher than the preset energy threshold are determined to be the RSRP value higher than the preset energy threshold. One Resources around a subset of resources.

As shown in FIG. 4C, taking the third scheme as an example, the preset time window corresponding to the first resource set includes 10 sub-time windows, which are numbered 0-9 from left to right, and a sub-time window with the number 1 is assumed. The RSRP value of the corresponding first resource subset is higher than a preset energy threshold. The first resource subset corresponding to the sub-time window numbered 1 in FIG. 4C is located to the left of the sub-time window. Considering that the average energy value of the resource conforms to a normal distribution within a timing domain interval, in order to eliminate as many resources as possible with high energy values, the first resource subset higher than the preset energy threshold may be The resources in the preset time domain interval are determined as resources around the first resource subset whose RPRS value is higher than the preset energy threshold. The resource indicated by the dashed box in FIG. 4C is the first resource subset with the RSRP value higher than the preset energy threshold and the resources around it.

The process of determining, by the P-UE, the reserved resource subset corresponding to the first resource subset whose RSRP value is higher than the preset energy threshold may be:

The P-UE performs signal detection on each of the first resource subsets of the at least one first resource subset; and determines, according to the signal detection result, the first resource subset with the RSRP value higher than the preset energy threshold and the data transmission period of the other UEs And in the first resource set, the resource that meets the data transmission period with the first resource subset whose RSRP value is higher than the preset energy threshold is determined as the reserved resource subset.

This process applies to the first and third options described above. The method for determining the data transmission period of other UEs is the same as the method for determining the data transmission period of other UEs in the foregoing step 301, and details are not described herein. It should be noted that the data transmission period of other UEs in the process is the data transmission period of other UEs indicated by most resources in the first resource subset.

As shown in FIG. 4D, the third scheme is still taken as an example. The preset time window corresponding to the first resource set includes 10 sub-time windows, which are numbered 0-9 from left to right, and a sub-time of number 1 is assumed. The RSRP value of the first resource subset corresponding to the window is higher than a preset energy threshold. It is assumed that the subframe number of the first resource subset corresponding to the sub-time window of number 1 is 161-170, and the data transmission period of other UEs is 100 ms, then the subframe number corresponding to the reserved resource subset may be determined as 261-270, 361-370, 461-470, 561-570, 661-670, 761-770, 861-870, 961-970, a subset of resources as indicated by the dashed box in Figure 4D.

The process of determining, by the P-UE, the occupied resources of the first resource subset in which the RSRP value is lower than the preset energy threshold may be:

The process of determining, by the P-UE, the first resource subset whose RSRP value is lower than the preset energy threshold may be: the P-UE performs signal detection on each of the first resource subsets of the at least one first resource subset; The RSRP average value of all resources in each first resource subset is determined according to the signal detection result; the first resource subset in which the RSRP average value in the first resource set is lower than the preset energy threshold is determined as the RSRP value is lower than the preset energy threshold. The first subset of resources. The first resource subset whose RSRP value is lower than the preset energy threshold refers to the average energy of the first resource subset. Therefore, the first resource subset whose RSRP value is lower than the preset energy threshold may include both occupied. Resources, including unoccupied resources. The process of determining the occupied resources from the first resource subset whose RSRP value is lower than the preset energy threshold is the same as the process of determining the occupied resources in the at least one first resource subset in step 301, and does not do this. Narration.

The P-UE determines a process in which the second resource subset includes reserved resources in the first resource set, or the P-UE determines that the second resource subset includes a potential reserved resource in the first resource set, or P- The process of the UE determining that the second resource subset includes the retransmission resource in the first resource set is the same as the corresponding process in step 301, and details are not described herein.

402. Determine a target resource set according to the second resource subset.

The P-UE may determine, according to the second resource subset, a target resource set that can perform data transmission when the received data transmission trigger instruction. The P-UE may exclude the second subset of resources from the specified resource set to determine the target resource set. The specified resource set may be the first resource set, or the second resource set, or a collection of the first resource set and the second resource set. The second resource set may be a resource set exclusively allocated for the P-UE and randomly selected resources.

In the first mode, the P-UE excludes the second subset of resources from the first resource set to determine the target resource set. This method is the same as the process of the first mode in the above step 302, and details are not described herein again.

The following is a collection form to explain this way:

Assume that the first resource set is A, the first resource subset whose RSRP value is higher than the preset energy threshold is N, and the first resource subset whose RSRP value is higher than the preset energy threshold and the surrounding resources are N', RSRP The reserved resource subset corresponding to the first resource subset whose value is higher than the preset energy threshold is G, and the occupied resource in the first resource subset whose RSRP value is lower than the preset energy threshold is O, and the first resource set is pre- The reserved resource is C, the potential resource E in the first resource set, the retransmission resource F in the first resource set, and the target resource set is R1, and then the (1)(2) in the above step 401 of the second resource subset is assumed. (3) (4)(5)(6) Six resources, the formula of the target resource set R1 is expressed as: R1=A–N–G–O–C–E–F or R1=A–N′–G –O–C–E–F. Of course, according to the resources included in the second resource subset, the formula representation of the R1 is also different. For example, if the second resource subset includes only the resource set N, then R1=A–N.

In the second mode, the P-UE excludes the second subset of resources from the second resource set to determine the target resource set. This method is the same as the process of the second mode in the above step 302, and details are not described herein again.

The following is a collection form to explain this way:

Assume that the second resource set is D, the first resource subset with the RSRP value higher than the preset energy threshold is N, and the first resource subset with the RSRP value higher than the preset energy threshold and the surrounding resources are N', RSRP The reserved resource subset corresponding to the first resource subset whose value is higher than the preset energy threshold is G, and the occupied resource in the first resource subset whose RSRP value is lower than the preset energy threshold is O, and the first resource set is pre- The reserved resource is C, the potential resource E in the first resource set and the retransmission resource F in the first resource set, and the target resource set is R2, then the (1)(2) in the above step 401 is assumed in the second resource subset. (3)(4)(5)(6) Three resources, the formula of the target resource set R2 is expressed as: R2=D–N–G–O–C–E–F or R2=D–N′–G –O–C–E–F. Considering that the second subset of resources is a subset of the first set of resources, and the second set of resources and the first set of resources have overlapping portions, the process of excluding the second subset of resources from the second set of resources is actually The second resource set excludes the portion of the second resource subset that overlaps with the second resource set. Therefore, the formula representation of the target resource set R2 can also be: R2=D–(D∩N)–(D∩G)–(D∩O)–(D∩C)–(D∩E)–(D∩ F) or R2=D–(D∩N')–(D∩G)–(D∩O)–(D∩C)–(D∩E)–(D∩F).

In a third manner, the collection of the target resource sets determined by the above two methods is determined as the target resource set. This method is the same as the process of the second mode in the above step 302, and details are not described herein again.

403. Select a resource from the target resource set to send data.

This step is the same as step 303 above, and will not be described here.

The method provided by the embodiment of the present disclosure performs signal detection on a part of resources in the first resource set, and can determine a second resource subset to be excluded according to the signal detection result, where the second resource subset includes multiple potential unavailable resources. At least one of the methods enables the P-UE to reduce the probability of resource conflicts generated by selecting resources in the target resource set, thereby improving the reliability of data transmission.

5 is a block diagram of a data transmitting apparatus according to an embodiment of the present disclosure. Referring to FIG. 5, the apparatus may be implemented by software, hardware, or a combination of the two. The apparatus includes a detecting module 501, a determining module 502, and a sending module 503.

The detecting module 501 is configured to execute the process involved in step 301 in the method embodiment shown in FIG. 3A.

a determining module 502, configured to perform the process involved in step 302 in the method embodiment shown in FIG. 3A above;

The sending module 503 is configured to execute the process involved in step 303 in the method embodiment shown in FIG. 3A.

FIG. 6 is a block diagram of a data transmitting apparatus according to an embodiment of the present disclosure. Referring to FIG. 6, the apparatus may be implemented by software, hardware, or a combination of the two. The apparatus includes a detecting module 601, a determining module 602, and a sending module 603.

The detecting module 601 is configured to execute the process involved in step 401 in the method embodiment shown in FIG. 4A.

a determining module 602, configured to execute the process involved in step 402 in the method embodiment shown in FIG. 4A above;

The sending module 603 is configured to execute the process involved in step 403 in the method embodiment shown in FIG. 4A.

It should be noted that, when the data transmitting apparatus provided in the foregoing embodiment transmits data, only the division of each functional module is described. In actual applications, the function allocation may be completed by different functional modules as needed. The internal structure of the device is divided into different functional modules to perform all or part of the functions described above. In addition, the foregoing embodiment provides the same concept of the data transmitting apparatus and the data sending method embodiment, and the specific implementation process is described in detail in the method embodiment, and details are not described herein again.

A person skilled in the art may understand that all or part of the steps of implementing the above embodiments may be completed by hardware, or may be instructed by a program to execute related hardware, and the program may be stored in a computer readable storage medium. The storage medium mentioned may be a read only memory, a magnetic disk or an optical disk or the like.

The above description is only the preferred embodiment of the present disclosure, and is not intended to limit the disclosure. Any modifications, equivalent substitutions, improvements, etc., which are within the spirit and principles of the present disclosure, should be included in the protection of the present disclosure. Within the scope.

Claims

A data transmitting method, characterized in that the method comprises:

Performing signal detection on at least one first resource subset in the first resource set, determining a second resource subset, where the at least one first resource subset is a subset of the first resource set;

Determining a target resource set according to the second subset of resources;

Selecting resources from the target resource set for data transmission;

The second resource subset includes at least one of the following resources:

The occupied resources of the at least one first resource subset or the at least one first resource subset;

a reserved resource in the first resource set;

The first resource concentrates a potential reserved resource;

Retransmitting resources in the first resource set.
The method according to claim 1, wherein if the second subset of resources includes reserved resources in the first resource set, the at least one first subset of resources in the first set of resources performs signal detection, Determining the second subset of resources includes:

Performing signal detection on any of the at least one first resource subset to obtain a frequency domain location and a time domain interval for data transmission by other UEs;

Determining, in the first resource set, the resource corresponding to the frequency domain location and the time domain interval as the reserved resource in the first resource set.
The method according to claim 1, wherein if said second subset of resources comprises potential reserved resources in said first set of resources, said detecting at least one first subset of resources in said first set of resources , determining the second subset of resources includes:

Performing signal detection on any resource in the first resource subset to obtain a frequency domain location and a data transmission period for other UEs to perform data transmission;

Determining, in the first resource set, the data transmission period and the resource corresponding to the frequency domain location as potential reserved resources in the first resource set.
The method of claim 1 wherein if said second subset of resources is packaged And including the retransmission resource in the first resource set, where the signal detection is performed on the first resource subset in the first resource set, and determining the second resource subset includes:

Performing signal detection on any resource in the first resource subset to obtain a frequency domain location and a time domain interval for other UEs to perform data retransmission;

Determining, by the first resource set, the frequency domain location and the resource corresponding to the time domain interval as a retransmission resource in the first resource set.
The method according to claim 1, wherein the determining the target resource set according to the second resource subset comprises:

Determining a first difference set of the first resource set and the second resource subset, and determining the target resource set according to the first difference set; or

Determining a second difference set of the second resource set and the second resource subset, determining the second difference set as the target resource set; or

Determining the target resource set according to the first difference set and the second difference set.
A data transmitting method, characterized in that the method comprises:

Performing signal detection on at least one first resource subset in the first resource set, determining a second resource subset, where the at least one first resource subset is a subset of the first resource set;

Determining a target resource set according to the second subset of resources;

Selecting resources from the target resource set for data transmission;

The second resource subset includes at least one of the following resources:

The first resource subset with the RSRP value higher than the preset energy threshold or the first resource subset with the RSRP value higher than the preset energy threshold and resources around it;

The subset of reserved resources corresponding to the first subset of resources whose RSRP value is higher than the preset energy threshold;

An occupied resource of the first resource subset whose RSRP value is lower than the preset energy threshold;

a reserved resource in the first resource set;

The first resource concentrates a potential reserved resource;

Retransmitting resources in the first resource set.
The method according to claim 6, wherein if said second subset of resources comprises a first subset of resources having an RSRP value higher than said preset energy threshold, said at least one of said first resource set A subset of resources is used for signal detection, and determining the second subset of resources includes:

Performing signal detection on each of the first subset of resources in the at least one first subset of resources;

Determining an RSRP average value of all resources in each of the first resource subsets according to the signal detection result;

And determining, by the first resource subset, that the RSRP value of the first resource set is higher than the preset energy threshold, the first resource subset whose RSRP value is higher than the preset energy threshold.
The method according to claim 6, wherein the preset time window corresponding to the first resource set comprises a plurality of sub-time windows, each of the first resource subsets corresponding to one sub-time window, if the second resource subset The first resource subset with the RSRP value being higher than the preset energy threshold and the surrounding resources are included, and the at least one first resource subset of the first resource set is subjected to signal detection, and determining the second resource subset includes:

Performing signal detection on each of the first subset of resources in the at least one first subset of resources;

Determining, according to the signal detection result, the first resource subset whose RSRP value is higher than the preset energy threshold;

Determining, by the specified sub-time window corresponding to the first resource subset that the RSRP value is higher than the preset energy threshold, determining, by the resource corresponding to the specified sub-time window, that the RSRP value is higher than the preset energy threshold. The first resource subset and the resources surrounding it; or the first resource group and the first resource subset whose RSRP value is higher than the preset energy threshold are within a preset time domain interval, Determining a resource around the first subset of resources whose RSRP value is higher than the preset energy threshold.
The method according to claim 6, wherein if the second subset of resources includes a subset of reserved resources corresponding to a first subset of resources whose RSRP value is higher than a preset energy threshold, the pair of first resources is concentrated At least one first subset of resources performs signal detection, and determining the second subset of resources includes:

Performing signal detection on each of the first subset of resources in the at least one first subset of resources;

Determining, according to the signal detection result, a data transmission period of the first resource subset and the other UEs whose RSRP value is higher than the preset energy threshold;

And in the first resource set, the resource that meets the data transmission period with the first resource subset whose RSRP value is higher than the preset energy threshold is determined as the reserved resource subset.
The method of claim 6 wherein said second subset of resources comprises And performing, by the reserved resource in the first resource set, the signal detection on the at least one first resource subset in the first resource set, and determining the second resource subset includes:

Performing signal detection on any of the at least one first resource subset to obtain a frequency domain location and a time domain interval for data transmission by other UEs;

Determining, in the first resource set, the resource corresponding to the frequency domain location and the time domain interval as the reserved resource in the first resource set.
The method according to claim 6, wherein if the second subset of resources includes potential reserved resources in the first resource set, the signal detection is performed on at least one first subset of resources in the first resource set , determining the second subset of resources includes:

Performing signal detection on any resource in the first resource subset to obtain a frequency domain location and a data transmission period for other UEs to perform data transmission;

Determining, in the first resource set, the data transmission period and the resource corresponding to the frequency domain location as potential reserved resources in the first resource set.
The method according to claim 6, wherein if the second subset of resources includes retransmission resources in the first resource set, the first resource subset in the first resource set performs signal detection, Determining the second subset of resources includes:

Performing signal detection on any resource in the first resource subset to obtain a frequency domain location and a time domain interval for other UEs to perform data retransmission;

Determining, by the first resource set, the frequency domain location and the resource corresponding to the time domain interval as a retransmission resource in the first resource set.
The method according to claim 6, wherein the determining the target resource set according to the second resource subset comprises:

Determining a first difference set of the first resource set and the second resource subset, determining the target resource set according to the first difference set; or

Determining a second difference set of the second resource set and the second resource subset, determining the second difference set as the target resource set; or

Determining the target resource set according to the first difference set and the second difference set.
A user equipment, comprising:

Processor, transceiver unit;

a memory for storing processor executable instructions;

The processor is configured to: perform signal detection on at least one first resource subset in the first resource set, determine a second resource subset, where the at least one first resource subset is the first resource set a subset of the target resource set according to the second subset of resources;

The transceiver unit is configured to select a resource from the target resource set for data transmission;

The second resource subset includes at least one of the following resources:

The occupied resources of the at least one first resource subset or the at least one first resource subset;

a reserved resource in the first resource set;

The first resource concentrates a potential reserved resource;

Retransmitting resources in the first resource set.
The user equipment according to claim 14, wherein if said second resource subset includes reserved resources in said first resource set, said processor is configured to perform any of said at least one first resource subset Performing signal detection on a resource to obtain a frequency domain location and a time domain interval for data transmission by other UEs; determining, in the first resource set, resources corresponding to the frequency domain location and the time domain interval as the first resource concentration Reserved resources.
The user equipment according to claim 14, wherein if said second subset of resources comprises potential reserved resources in said first set of resources, said processor is configured to either of said first subset of resources The resource performs signal detection, and obtains a frequency domain location and a data transmission period of data transmission by other UEs; determining, in the first resource set, the data transmission period and the resource corresponding to the frequency domain location as the first resource Concentrate on potential reserved resources.
The user equipment according to claim 14, wherein if the second resource subset includes retransmission resources in the first resource set, the processor is configured to be in the first resource subset Performing signal detection on a resource to obtain a frequency domain location and a time domain interval for data retransmission by other UEs; determining, by the first resource set, the frequency domain location and the resource corresponding to the time domain interval as the first Retransmitted resources in a centralized resource.
The user equipment according to claim 14, wherein the processor is configured to determine a first difference set of the first resource set and the second resource subset, and determine, according to the first difference set, Determining a target resource set; or determining a second difference set of the second resource set and the second resource subset, determining the second difference set as the target resource set; or, according to the first difference set And the second difference set, the target resource set is determined.
A user equipment, comprising:

Processor, transceiver unit;

a memory for storing processor executable instructions;

The processor is configured to perform signal detection on at least one first resource subset in the first resource set, to determine a second resource subset, where the at least one first resource subset is the first resource set a subset; determining a target resource set according to the second resource subset;

The transceiver unit is configured to select a resource from the target resource set for data transmission;

The second resource subset includes at least one of the following resources:

The first resource subset with the RSRP value higher than the preset energy threshold or the first resource subset with the RSRP value higher than the preset energy threshold and resources around it;

The subset of reserved resources corresponding to the first subset of resources whose RSRP value is higher than the preset energy threshold;

An occupied resource of the first resource subset whose RSRP value is lower than the preset energy threshold;

a reserved resource in the first resource set;

The first resource concentrates a potential reserved resource;

Retransmitting resources in the first resource set.
The user equipment according to claim 19, wherein said processor is configured to pair said at least one if said second subset of resources comprises a first subset of resources having an RSRP value higher than said preset energy threshold Performing signal detection on each of the first resource subsets in the first resource subset; determining an RSRP average value of all resources in each of the first resource subsets according to the signal detection result; The first subset of resources of the preset energy threshold is determined to be the first subset of resources whose RSRP value is higher than the preset energy threshold.
The user equipment according to claim 19, wherein the first resource set corresponds to a pre- The time window includes a plurality of sub-time windows, each of the first resource subsets corresponding to one sub-time window, if the second resource subset includes a first subset of resources and an area around which the RSRP value is higher than the preset energy threshold. And the processor is configured to perform signal detection on each of the at least one first resource subset; and determine, according to the signal detection result, that the RSRP value is higher than the preset energy threshold. a first subset of resources; determining a specified sub-time window corresponding to the first subset of resources whose RSRP value is higher than the preset energy threshold, determining, by the resource corresponding to the specified sub-time window, that the RSRP value is high The first resource subset of the preset energy threshold and the surrounding resources thereof; or the first resource subset and the first resource subset with the RSRP value higher than the preset energy threshold are preset The resources in the time domain interval are determined as resources around the first resource subset whose RSRP value is higher than the preset energy threshold.
The user equipment according to claim 19, wherein if the second subset of resources includes a subset of reserved resources corresponding to a first subset of resources whose RSRP value is higher than a preset energy threshold, the processor is configured to Performing signal detection on each of the at least one first resource subset; determining, according to the signal detection result, the first resource subset and the other UEs that have an RSRP value higher than the preset energy threshold a data transmission period; in the first resource set, a resource that meets the data transmission period with a first resource subset whose RSRP value is higher than the preset energy threshold is determined as the reserved resource subset .
The user equipment according to claim 19, wherein if said second resource subset includes reserved resources in said first resource set, said processor is configured to perform any of said at least one first resource subset Performing signal detection on a resource to obtain a frequency domain location and a time domain interval for data transmission by other UEs; determining, in the first resource set, resources corresponding to the frequency domain location and the time domain interval as the first resource concentration Reserved resources.
The user equipment according to claim 19, wherein said processor is configured to be any one of said first resource subsets if said second resource subset comprises potential reserved resources in said first resource set The resource performs signal detection, and obtains a frequency domain location and a data transmission period of data transmission by other UEs; determining, in the first resource set, the data transmission period and the resource corresponding to the frequency domain location as the first resource Concentrate on potential reserved resources.
The user equipment according to claim 19, wherein if the second resource subset includes retransmission resources in the first resource set, the processor is configured to be in the first resource subset Performing signal detection on a resource to obtain a frequency domain location and a time domain interval for data retransmission by other UEs; determining, by the first resource set, the frequency domain location and the resource corresponding to the time domain interval as the first Retransmitted resources in a centralized resource.
The user equipment according to claim 19, wherein the processor is configured to determine a first difference set of the first resource set and the second resource subset, and determine the first difference set according to the first difference set a target resource set; or determining a second difference set of the second resource set and the second resource subset, determining the second difference set as the target resource set; or, according to the first difference set and The second difference set determines the target resource set.