Method and terminal device for interception in vehicle networking system

Abstract

A method and terminal device for listening in a vehicle networking system are provided. The method comprises: the terminal device generates indication information on the media access control layer, the indication information is used to instruct the terminal device to listen to a resource pool of at least one transmission time length on the physical layer; the terminal device sends the indication information to the physical layer. In an embodiment of the present invention, the terminal device can effectively improve the efficiency of data transmission, reduce the delay of data transmission, and thus improve the user experience by selectively listening to the resource pool (for example, a resource pool of 1ms TTI and a resource pool of 0.5ma TTI).

Description

Technical Field

[0001] Embodiments of the present invention relate to the field of communications, and more specifically, to a method and terminal device for intercepting in a vehicle networking system. Background Art

[0002] The Internet of Vehicles system is a sidelink (SL) transmission technology based on Long Term Evaluation Vehicle to Vehicle (LTE D2D). Different from the traditional LTE system in which communication data is received or sent by base stations, the Internet of Vehicles system adopts terminal-to-terminal direct communication, so it has higher spectrum efficiency and lower transmission delay.

[0003] The 3rd Generation Partnership Project (3GPP) Rel-14 standardizes the vehicle-to-everything (V2X) technology and defines two transmission modes: Mode 3 and Mode 4. Specifically, in Mode 3, if Figure 1 As shown, the transmission resources of the vehicle terminals (vehicle terminals 121 and vehicle terminals 122) are allocated by the base station 110, and the vehicle terminals transmit data on the sidelink according to the resources allocated by the base station 110; the base station 110 can allocate resources for single transmission to the terminal, or allocate resources for semi-static transmission to the terminal. In mode 4, as Figure 2 As shown, the vehicle terminals (vehicle terminals 131 and 132) adopt a transmission mode of sensing plus reservation. Specifically, the vehicle terminals obtain a set of available transmission resources in the resource pool by sensing, and the terminals randomly select a resource from the set for data transmission.

[0004] However, in the prior art under mode 4, the vehicle terminal generally only monitors the resource pool with a long transmission time length (long TTI), for example, a resource pool of 1 ms, which makes the data transmission delay too long and reduces the user experience. Summary of the invention

[0005] A method and terminal device for monitoring in a vehicle networking system are provided, which can effectively reduce the delay of data transmission and thus improve the user experience.

[0006] In a first aspect, a method for monitoring in a vehicle networking system is provided, comprising:

[0007] The terminal device generates indication information on the media access control layer, where the indication information is used to instruct the terminal device to listen to a resource pool of at least one transmission time length on the physical layer;

[0008] The terminal device sends the indication information to the physical layer.

[0009] In the embodiment of the present invention, the terminal device can effectively reduce the delay of data transmission, improve the efficiency of data transmission, and thus improve the user experience by selectively listening to the resource pool (for example, the resource pool of 1ms TTI and the resource pool of 0.5ma TTI).

[0010] In some possible implementations, before the terminal device generates the indication information on the media access control layer, the method further includes:

[0011] The terminal device acquires, on the media access control layer, corresponding relationship information, where the corresponding relationship information includes a corresponding relationship between a logical channel for sending data to be transmitted and the at least one transmission time length that can be supported by the logical channel; wherein the terminal device generates indication information on the media access control layer, including:

[0012] The terminal device generates the indication information at the media access control layer according to the corresponding relationship information.

[0013] In some possible implementations, the method further includes:

[0014] The terminal device obtains a set of available transmission resources at the physical layer by listening to a resource pool of at least one transmission time length; the terminal device generates a listening result report based on the transmission resource set at the physical layer; and the terminal device sends the listening result report to the media access control layer.

[0015] In some possible implementations, the monitoring result report includes the transmission resource set.

[0016] In some possible implementations, the method further includes:

[0017] The terminal device receives the listening result report at the media access control layer, wherein the listening result report includes the transmission resource set; the terminal device selects a first resource from the transmission resource set at the media access control layer; and the terminal device sends data to be transmitted on the first resource.

[0018] In some possible implementations, the terminal device generates, at the physical layer, a listening result report according to the transmission resource set, including:

[0019] The terminal device selects at least one resource from the transmission resource set at the physical layer; the terminal device generates the listening result report at the physical layer, and the listening result report includes the at least one resource.

[0020] In some possible implementations, before the terminal device selects at least one resource from the set of transmission resources at the physical layer, the method further includes:

[0021] The terminal device obtains, on the physical layer, information about the channel quality corresponding to each resource in the transmission resource set; wherein, the terminal device selects, on the physical layer, at least one resource from the transmission resource set, including:

[0022] The terminal device selects the at least one resource from the transmission resource set on the physical layer according to the information of the channel quality corresponding to each resource in the transmission resource set and in the order of channel quality from high to low.

[0023] In some possible implementations, in some possible implementations, the terminal device selects, at the physical layer, at least one resource from the set of transmission resources, including:

[0024] If the transmission resource set includes resources with multiple transmission time lengths, the terminal device selects a resource with a first transmission time length from the resources with multiple transmission time lengths on the physical layer; the terminal device determines the resource with the first transmission time length as the at least one resource on the physical layer.

[0025] In this way, the resource type of the data to be transmitted and the transmission time length can be effectively matched, thereby improving the user experience. For example, for services with high latency requirements, short TTI resources can be used.

[0026] In some possible implementations, before the terminal device selects, at the physical layer, a resource with a first transmission time length from the resources with the multiple transmission time lengths, the method further includes:

[0027] The terminal device obtains, on the physical layer, information on channel quality corresponding to resources of each transmission resource length among the multiple transmission time lengths; wherein the selecting a resource of a first transmission time length from the resources of the multiple transmission time lengths comprises:

[0028] The terminal device selects the first transmission time length resource from the resources of the multiple transmission time lengths on the physical layer based on the information on the channel quality corresponding to the resources of each transmission resource length in the multiple transmission time lengths.

[0029] In some possible implementations, the method further includes:

[0030] The terminal device receives the listening result report on the media access control layer, and the listening result report includes the at least one resource; the terminal device selects a first resource from the at least one resource on the media access control layer; and the terminal device sends data to be transmitted on the first resource.

[0031] In some possible implementations, the terminal device selects, at the media access control layer, a first resource from the at least one resource, including:

[0032] The terminal device randomly selects the first resource from the at least one resource at the media access control layer.

[0033] In some possible implementations, the terminal device selects, at the media access control layer, a first resource from the at least one resource, including:

[0034] The terminal device selects the first resource from the at least one resource in descending order of channel quality at the media access control layer.

[0035] In some possible implementations, the resources in the monitoring result report are sorted in order of channel quality from high to low or from low to high.

[0036] In some possible implementations, the monitoring result report further includes information on channel quality corresponding to each resource in the monitoring result report, and the information on channel quality includes at least one of the following information:

[0037] Received signal strength indication RSSI, reference signal received power RSRP and reference signal received quality RSRQ; or

[0038] The monitoring result report also includes information on the channel quality of resources corresponding to each transmission time length in the monitoring result report.

[0039] In some possible implementations, the at least one transmission time length includes a first type transmission time length and / or a second type transmission time length, and the length of the first type transmission time length is greater than the length of the second type transmission time length.

[0040] In some possible implementations, the length of the first type of transmission time length is 1 ms, and the length of the second type of transmission time length is 0.5 ms.

[0041] In a second aspect, a terminal device is provided, the terminal device comprising:

[0042] A generating unit, configured to generate indication information on a media access control layer, wherein the indication information is used to instruct the terminal device to listen to a resource pool of at least one transmission time length on a physical layer;

[0043] A transceiver unit is used to send the indication information to the physical layer.

[0044] In a third aspect, a terminal device is provided, the terminal device comprising:

[0045] A processor, configured to generate indication information on a media access control layer, wherein the indication information is used to instruct the terminal device to listen to a resource pool of at least one transmission time length on a physical layer;

[0046] A transceiver is used to send the indication information to the physical layer.

[0047] In a fourth aspect, a computer-readable medium is provided for storing a computer program, wherein the computer program includes instructions for executing the method embodiment of the first aspect.

[0048] In a fifth aspect, a computer chip is provided, comprising: an input interface, an output interface, at least one processor, and a memory, wherein the processor is used to execute the code in the memory. When the code is executed, the processor can implement the various processes performed by the terminal device in the method for listening in the Internet of Vehicles system in the above-mentioned first aspect and various implementation methods.

[0049] In a sixth aspect, a communication system is provided, comprising the plurality of terminal devices described above. BRIEF DESCRIPTION OF THE DRAWINGS

[0050] Figure 1 It is a schematic framework diagram of the transmission mode of an embodiment of the present invention.

[0051] Figure 2 It is a schematic framework diagram of another transmission mode of an embodiment of the present invention.

[0052] Figure 3 It is a schematic flow chart of a method for monitoring a resource pool according to an embodiment of the present invention.

[0053] Figure 4 It is a schematic flowchart of a method for monitoring in a vehicle networking system according to an embodiment of the present invention.

[0054] Figure 5 It is a schematic flow chart of a method for transmitting interception result report according to an embodiment of the present invention.

[0055] Figure 6 It is a schematic flow chart of a method for sending data to be transmitted according to an embodiment of the present invention.

[0056] Figure 7 It is a schematic block diagram of a terminal device according to an embodiment of the present invention.

[0057] Figure 8 is a schematic block diagram of another terminal device according to an embodiment of the present invention. DETAILED DESCRIPTION

[0058] The technical solutions in the embodiments of the present invention will be described below in conjunction with the accompanying drawings.

[0059] The embodiments of the present invention can be applied to any terminal device to terminal device communication framework, such as vehicle to vehicle (V2V), vehicle to everything (V2X), device to device (D2D), etc. In other words, Figure 2 The vehicle terminal to vehicle terminal system framework shown is only an example of the embodiment of the present invention, and the embodiment of the present invention is not limited thereto.

[0060] Among them, the terminal device in the embodiment of the present invention can be any device or apparatus configured with a physical layer and a media access control layer, and the terminal device can also be called an access terminal. For example, user equipment (UE), user unit, user station, mobile station, mobile station, remote station, remote terminal, mobile device, user terminal, terminal, wireless communication device, user agent or user device. The access terminal can be a cellular phone, a cordless phone, a Session Initiation Protocol (SIP) phone, a Wireless Local Loop (WLL) station, a Personal Digital Assistant (PDA), a handheld device with wireless communication function, a computing device or other linear processing device connected to a wireless modem, a vehicle-mounted device, a wearable device, etc. The embodiment of the present invention is described by taking a vehicle-mounted terminal as an example, but is not limited to this.

[0061] In the embodiment of the present invention, when the terminal device listens to the resource pool, a resource pool of short transmission time length (short TTI) is introduced on the basis of the traditional resource pool of long transmission time length (longTTI). That is to say, in the listening method of the embodiment of the present invention, when the terminal device needs to select resources, if there is both a resource pool of short TTI and a resource pool of long TTI, the terminal device can selectively listen to the resource pool.

[0062] The following describes how a terminal device selectively listens to a resource pool.

[0063] Figure 3 It is a schematic flow chart of a method for a terminal device to monitor a resource pool in an embodiment of the present invention.

[0064] like Figure 3 As shown, the method includes:

[0065] 210. The terminal device generates indication information on the media access control layer, where the indication information is used to instruct the terminal device to listen to a resource pool of at least one transmission time length on the physical layer.

[0066] 220. The terminal device sends the indication information to the physical layer.

[0067] Specifically, it is assumed that at least one transmission time length in an embodiment of the present invention may include a first type of transmission time length (long TTI) and / or a second type of transmission time length (short TTI), and the length of the first type of transmission time length (long TTI) is greater than the length of the second type of transmission time length (short TTI).

[0068] When the terminal device needs to select resources, if there are both long TTI resource pools and short TTI resource pools, or the resource pools contain both short TTI resources and long TTI resources, the terminal device can selectively monitor the resource pools. For example, the terminal device can choose to monitor the long TTI resource pool, or for another example, the terminal device can choose to monitor the short TTI resource pool, or for another example, the terminal device can choose to monitor both the long TTI resource pool and the short TTI resource pool.

[0069] For example, the long TTI is 1ms TTI, and the short TTI is 0.5ms TTI. However, it should be understood that the type of transmission time length in the embodiment of the present invention is not limited thereto, for example, the at least one transmission time length may also include a third type of transmission time length, for example, 2ms TTI.

[0070] For ease of understanding, the following description will be given by taking at least one transmission time length including two transmission time lengths, long TTI and short TTI, as an example.

[0071] Optionally, before generating indication information on the media access control layer, the terminal device obtains corresponding relationship information on the media access control layer, and the corresponding relationship information includes a correspondence between a logical channel for sending data to be transmitted and at least one transmission time length that the logical channel can support; then, the terminal device generates the indication information on the media access control layer based on the corresponding relationship information.

[0072] Specifically, when the terminal device needs to select resources, the terminal device can first check each logical channel that has data to be sent at the media access control layer, assuming that each logical channel has a corresponding relationship with the TTI type, that is, whether the current logical channel is allowed to be sent with a long TTI or a short TTI. If the media access control layer finds that there are both logical channels that are allowed to be sent with a short TTI (logical channels with data) and logical channels that are allowed to be sent with a long TTI (logical channels with data), the terminal device generates indication information on the media access control layer to instruct the physical layer to listen to the resource pool of the short TTI and the resource pool of the long TTI, and sends it to the physical layer.

[0073] It can be seen that in the embodiment of the present invention, the terminal device can effectively improve the efficiency of data transmission, reduce the delay of data transmission, and thus improve the user experience by selectively listening to the resource pool of long TTI and the resource pool of short TTI.

[0074] The following describes a method in which a terminal device monitors a resource pool at a physical layer in an embodiment of the present invention.

[0075] In the embodiment of the present invention, the media access control layer of the terminal device can also tell the physical layer how much resources (the number of subchannels) are needed through indication information, and the physical layer will perform monitoring according to the resource requirements. For example, long TTI monitoring and how much resources (the number of subchannels) are needed when performing long TTI monitoring; another example is short TTI monitoring and how much resources (the number of subchannels) are needed when performing short TTI monitoring.

[0076] Figure 4 It is a schematic flowchart of a method for a terminal device to monitor a resource pool according to an embodiment of the present invention.

[0077] like Figure 4As shown, it is assumed that each carrier corresponds to at least one sidelink process. For example, in 3GPP rel-14, one carrier corresponds to two sidelink processes. When a new data packet arrives at time n, the terminal device needs to select resources. The terminal selects resources within the interval [n+T1, n+T2] based on the listening results in the past period of time (for example, 1s).

[0078] Among them, T1≤4ms; 20ms≤T2≤100ms.

[0079] It should be understood that the value range of T1 and T2 is only an example and should not limit this embodiment.

[0080] Since the services in the Internet of Vehicles system have periodic characteristics, in the embodiment of the present invention, the terminal device may adopt a semi-static transmission mode.

[0081] Specifically, when a terminal device selects a resource for transmission, the terminal device will continue to use the reserved resource Cresel times. Each time data is transmitted, Cresel decreases by 1. When Cresel decreases to 0, the terminal will randomly generate a random number between [0, 1] and compare it with the parameter (probResourceKeep). If it is greater than the parameter, the terminal will reselect the resource. If it is less than the parameter, the terminal will continue to use the resource and reset Cresel.

[0082] In other words, the terminal device of the embodiment of the present invention will carry the information of the resource reserved for the next transmission in the control information of the current transmission, so that other terminal devices can determine whether the resource is reserved and used by the terminal device by detecting the control information of the terminal device, thereby achieving the purpose of reducing resource conflicts. In other words, after selecting a transmission resource, the terminal device of the embodiment of the present invention can continue to use the resource in multiple transmission cycles, thereby reducing the probability of resource reselection and resource conflicts.

[0083] Figure 5 It is a schematic flow chart of a method for transmitting interception result report according to an embodiment of the present invention.

[0084] like Figure 5 As shown, the method includes:

[0085] 230. The terminal device obtains a set of available transmission resources on the physical layer by listening to a resource pool of at least one transmission time length.

[0086] 240. The terminal device generates a monitoring result report on the physical layer according to the transmission resource set.

[0087] 250. The terminal device sends the monitoring result report to the media access control layer.

[0088] Specifically, first, the terminal device obtains all available resources on the physical layer by listening to a resource pool with at least one transmission time length indicated in the indication information, and these available resources form a transmission resource set; then, the terminal device generates a listening result report on the physical layer according to the transmission resource set, and sends the listening result report to the media access control layer.

[0089] Since the ultimate purpose of the terminal device in the embodiment of the present invention is that the media access control layer of the terminal device obtains the first resource for sending the data to be transmitted. The terminal device can obtain all available resources, that is, the transmission resource set, by listening at the physical layer. Therefore, in the embodiment of the present invention, the terminal device needs to exclude the resources in the transmission resource set.

[0090] Optionally, the terminal device may send the transmission resource set directly to the media access control layer, so that the media access control layer selects a first resource in the transmission resource set for sending the data to be transmitted.

[0091] Optionally, after obtaining the transmission resource set at the physical layer, the terminal device may first select a part of the resources from the transmission resource set, and then send this part of the resources to the media access control layer. The media access control layer then selects the first resource from this part of the resources for sending the data to be transmitted.

[0092] That is to say, the listening result report generated by the terminal device on the physical layer based on the transmission resource set may include all the resources in the transmission resource set, or may include part of the resources in the transmission resource set.

[0093] The following describes how the terminal device generates a listening result report at the physical layer.

[0094] As an embodiment, the above-mentioned monitoring result report may include the transmission resource set.

[0095] Therefore, after the terminal device receives the listening result report on the media access control layer, the terminal device can select a first resource from the transmission resource set on the media access control layer; then, the terminal device sends the data to be transmitted on the first resource.

[0096] In other words, the terminal device does not perform resource selection at the physical layer, but performs resource selection at the media access control layer.

[0097] As another embodiment, the terminal device selects at least one resource from the transmission resource set on the physical layer; the terminal device generates the listening result report on the physical layer, and the listening result report includes the above-mentioned at least one resource.

[0098] In other words, the physical layer of the terminal device can select a portion of all available resources to be handed over to the media access control layer. Optionally, the physical layer selects a certain amount of resources to be handed over to the media access control layer, for example, at least 20% of the total available resources.

[0099] Optionally, before the terminal device selects at least one resource from the transmission resource set on the physical layer, the terminal device obtains, on the physical layer, information on the channel quality corresponding to each resource in the transmission resource set; then, the terminal device selects the above-mentioned at least one resource from the transmission resource set in order of channel quality from high to low based on the information on the channel quality corresponding to each resource in the transmission resource set on the physical layer.

[0100] In an embodiment of the present invention, the terminal device can detect the channel quality (e.g., received power or received quality) of the physical sidelink shared channel (PSSCH) corresponding to the physical sidelink control channel (PSCCH) in the listening window, and obtain the information of the channel quality corresponding to each resource in the transmission resource set. The terminal device can also obtain the information of the channel quality corresponding to each resource in the transmission resource set by performing a received signal strength indicator (RSSI) detection on the resources in the transmission resource set.

[0101] Optionally, if the transmission resource set includes resources with multiple transmission time lengths, the terminal device selects a resource with a first transmission time length from the resources with multiple transmission time lengths on the physical layer; the terminal device determines the resource with the first transmission time length as at least one of the above-mentioned resources on the physical layer.

[0102] For example, before the terminal device selects the resource of the first transmission time length from the resources of the multiple transmission time lengths on the physical layer, the terminal device obtains the information of the channel quality corresponding to the resource of each transmission time length among the multiple transmission time lengths; then, the terminal device selects the resource of the first transmission time length from the resources of the multiple transmission time lengths on the physical layer based on the information of the channel quality corresponding to the resource of each transmission time length among the multiple transmission time lengths.

[0103] Specifically, the terminal device may determine the transmission time length to which the resource with the highest channel quality belongs as the first transmission time length on the physical layer, thereby effectively improving the reliability of data transmission and further improving the user experience.

[0104] For example, assuming that the transmission resource set includes short TTI resources and long TTI resources, the terminal device can select the at least one resource by selecting the type of transmission time length when acquiring, for example, the terminal device selects short TTI resources or long TTI resources as the at least one resource.

[0105] More specifically, the terminal device may first obtain information on the channel quality corresponding to the resources of the short TTI and information on the channel quality corresponding to the resources of the long TTI; then, based on the information on the channel quality corresponding to the resources of the short TTI and information on the channel quality corresponding to the resources of the long TTI, determine the resources of the first transmission time length in the embodiment of the present invention, that is, at least one resource mentioned above, in the transmission resource set. It can be understood that in the embodiment of the present invention, the information on the channel quality corresponding to a resource of a transmission time length may be a piece of information (e.g., a threshold value); that is, the quality of the resources of the corresponding transmission time length can be reflected through this information.

[0106] For example, assuming that the resources of short TTI correspond to a first threshold and the resources of long TTI correspond to a second threshold, the terminal device can determine the resources of the first transmission time length in the embodiment of the present invention, that is, at least one of the above resources, by comparing the first threshold and the second threshold.

[0107] It should be understood that the terminal device selects the resource of the first transmission time length from the resources of the multiple transmission time lengths according to the channel quality on the physical layer. This is only explained as an example of selecting the first transmission time length, and the embodiments of the present invention are not limited to this.

[0108] For example, the indication information in the embodiment of the present invention may also indicate the delay requirement of the data to be transmitted of the terminal device, and the terminal device may select a resource of a first transmission time length from the resources of the multiple transmission time lengths at the physical layer according to the delay requirement of the data to be transmitted. For example, for services with higher delay requirements, short TTI resources may be used.

[0109] In this way, the resource type of the data to be transmitted and the transmission time length can be effectively matched, thereby improving the user experience. For example, for services with high latency requirements, short TTI resources can be used.

[0110] It should also be understood that the resource of the first transmission time length in the embodiment of the present invention may be a resource of one transmission time length, or may be a resource of multiple transmission time lengths. In addition, when the terminal device in the embodiment of the present invention selects at least one resource from the transmission resource set at the physical layer, it may directly select the at least one resource, or may select the at least one resource by exclusion, which is not specifically limited in the embodiment of the present invention.

[0111] For example, when selecting the at least one resource, the terminal device may exclude a resource that conflicts with the next transmission resource reserved by control information of other terminal devices.

[0112] For example, if the terminal device has no listening results in certain time units (eg, subframes) within the listening window, the resources of these time units on the corresponding time units within the selection window may be excluded.

[0113] For another example, in order to effectively reduce the workload of the terminal device and thereby improve processing efficiency, the terminal device may randomly select at least one of the above-mentioned resources from the transmission resource set at the physical layer.

[0114] Figure 6 It is a schematic flow chart of a method for sending data to be transmitted according to an embodiment of the present invention.

[0115] like Figure 6 As shown, the method includes:

[0116] 260. The terminal device receives the monitoring result report on the media access control layer, where the monitoring result report includes the at least one resource mentioned above.

[0117] 270. The terminal device selects a first resource from the at least one resource at the media access control layer.

[0118] 280. The terminal device sends the data to be transmitted on the first resource.

[0119] It should be understood that in the embodiment of the present invention, when the terminal device selects the first resource from the at least one resource on the media access control layer, it can be randomly selected or selected according to certain rules, and the embodiment of the present invention does not make specific limitations.

[0120] For example, the terminal device may select the first resource from the at least one resource in descending order of channel quality at the media access control layer.

[0121] For another example, the terminal device may first select a resource of a certain type of transmission time length on the media access control layer, and then select the first resource from the resources of the type of transmission time length.

[0122] For another example, in order to effectively reduce the workload of the terminal device and thereby improve processing efficiency, the terminal device may randomly select the first resource from the transmission resource set at the media access control layer.

[0123] It should be noted that in the embodiment of the present invention, regardless of whether the terminal device does not perform resource selection at the physical layer or performs resource selection at the physical layer, the terminal device may also need to perform resource selection in the media access layer control.

[0124] Therefore, in order to enable the terminal device to select better resources at the media access control layer.

[0125] Optionally, the resources in the above interception result report can be sorted in order of channel quality from high to low or from low to high. Thus, the terminal device can select the first resource for sending the data to be transmitted according to the arrangement order of the resources in the interception result report at the media access control layer.

[0126] Optionally, the above-mentioned listening result report may also include information on channel quality corresponding to each resource in the listening result report, and the information on channel quality includes at least one of the following information:

[0127] Receive Signal Strength Indicator (RSSI), Reference Signal Receiving Power (RSRP) and Reference Signal Receiving Quality (RSRQ). Thus, the terminal device can select the first resource for sending the data to be transmitted according to the information of the channel quality corresponding to each resource in the monitoring result report at the media access control layer.

[0128] Optionally, the interception result report also includes information about the channel quality of resources corresponding to each transmission time length in the interception result report. Thus, the terminal device can select resources of the second transmission time length according to the information about the channel quality of resources corresponding to each transmission time length in the interception result report, and then select the first resource for sending the data to be transmitted from the resources of the second transmission length.

[0129] It should be understood that in the embodiment of the present invention, since the listening result report may include information on the channel quality of the resources corresponding to each transmission time length in the listening result report, the manner in which the terminal device selects the resources of the second transmission time length at the media access control layer may be the same as or different from the manner in which the terminal device selects the resources of the first transmission time length, and the embodiment of the present invention does not specifically limit this. To avoid repetition, it will not be described here.

[0130] Figure 7 It is a schematic block diagram of a terminal device 300 according to an embodiment of the present invention.

[0131] like Figure 7 As shown, the terminal device 300 includes:

[0132] The generating unit 310 is used to generate indication information on the media access control layer, where the indication information is used to instruct the terminal device to listen to a resource pool of at least one transmission time length on the physical layer.

[0133] The transceiver unit 320 is used to send the indication information to the physical layer.

[0134] Optionally, the generating unit 310 is specifically configured to:

[0135] Before generating indication information on the media access control layer, obtain corresponding relationship information, which includes the correspondence between the logical channel used to send the data to be transmitted and the at least one transmission time length that the logical channel can support; on the media access control layer, generate the indication information according to the corresponding relationship information.

[0136] Optionally, the generating unit 310 is further configured to:

[0137] At the physical layer, an available transmission resource set is obtained by listening to the resource pool of at least one transmission time length; at the physical layer, a listening result report is generated according to the transmission resource set; wherein the transceiver unit 320 is further used for:

[0138] The monitoring result report is sent to the media access control layer.

[0139] Optionally, the monitoring result report includes the transmission resource set.

[0140] Optionally, the transceiver unit 320 is further configured to:

[0141] On the media access control layer, the listening result report is received, and the listening result report includes the transmission resource set; on the media access control layer, a first resource is selected from the transmission resource set; and data to be transmitted is sent on the first resource.

[0142] Optionally, the generating unit 310 is specifically configured to:

[0143] At the physical layer, at least one resource is selected from the transmission resource set; at the physical layer, the monitoring result report is generated, and the monitoring result report includes the at least one resource.

[0144] Optionally, the generating unit 310 is more specifically configured to:

[0145] On the physical layer, information on the channel quality corresponding to each resource in the transmission resource set is obtained; on the physical layer, based on the information on the channel quality corresponding to each resource in the transmission resource set, at least one of the above-mentioned resources is selected from the transmission resource set in order of channel quality from high to low.

[0146] Optionally, the generating unit 310 is more specifically configured to:

[0147] If the transmission resource set includes resources with multiple transmission time lengths, on the physical layer, a resource with a first transmission time length is selected from the resources with the multiple transmission time lengths; on the physical layer, the resource with the first transmission time length is determined as the at least one resource mentioned above.

[0148] Optionally, the generating unit 310 is more specifically configured to:

[0149] On the physical layer, before selecting a resource of a first transmission time length from the resources of the multiple transmission time lengths, the terminal device obtains, on the physical layer, information on the channel quality corresponding to each resource in the transmission resource set; on the physical layer, based on the information on the channel quality corresponding to each resource in the transmission resource set, randomly selects the resource of the first transmission time length from the resources of the multiple transmission time lengths in order of channel quality from high to low.

[0150] Optionally, the transceiver unit 320 is further configured to:

[0151] On the media access control layer, the listening result report is received, and the listening result report includes the above-mentioned at least one resource; on the media access control layer, a first resource is selected from the above-mentioned at least one resource; on the first resource, data to be transmitted is sent.

[0152] Optionally, the transceiver unit 320 is specifically used for:

[0153] On the media access control layer, the first resource is randomly selected from the at least one resource.

[0154] Optionally, the transceiver unit 320 is further configured to:

[0155] On the media access control layer, the first resource is selected from the at least one resource in descending order of channel quality.

[0156] Optionally, the resources in the monitoring result report are sorted in order of channel quality from high to low or from low to high.

[0157] Optionally, the monitoring result report further includes information on channel quality corresponding to each resource in the monitoring result report, where the information on channel quality includes at least one of the following information:

[0158] Received signal strength indication RSSI, reference signal received power RSRP and reference signal received quality RSRQ; or

[0159] The monitoring result report also includes information on the channel quality of resources corresponding to each transmission time length in the monitoring result report.

[0160] Optionally, the at least one transmission time length includes a first type transmission time length and / or a second type transmission time length, and the length of the first type transmission time length is greater than the length of the second type transmission time length.

[0161] Optionally, the length of the first type transmission time length is 1 ms, and the length of the second type transmission time length is 0.5 ms.

[0162] It should be noted that in the embodiment of the present invention, the generating unit 310 may be implemented by a processor, and the transceiver unit 320 may be implemented by a transceiver. Figure 8 As shown, the terminal device 400 may include a processor 410, a transceiver 420 and a memory 430. The memory 430 may be used to store indication information, and may also be used to store codes and instructions executed by the processor 410. The various components in the terminal device 400 are connected via a bus system, wherein the bus system includes a power bus, a control bus and a status signal bus in addition to a data bus.

[0163] Figure 8 The terminal device 700 shown can implement the aforementioned Figures 3 to 6 To avoid repetition, the various processes implemented by the terminal device in the method embodiment are not described here.

[0164] That is to say, the method embodiment in the embodiment of the present invention can be applied to a processor or implemented by a processor. The processor may be an integrated circuit chip with signal processing capabilities. In the implementation process, each step of the above method embodiment can be completed by the hardware integrated logic circuit in the processor or the instruction in the form of software. The above processor can be a general processor, a digital signal processor (digital signal processor, DSP), an application specific integrated circuit (application specific integrated circuit, ASIC), a field programmable gate array (field programmable gate array, FPGA) or other programmable logic devices, transistor logic devices, discrete hardware components. The methods, steps and logic block diagrams disclosed in the embodiments of the present invention can be implemented or executed. The general processor can be a microprocessor or the processor can also be any conventional processor. The steps of the method disclosed in the embodiment of the present invention can be directly embodied as a hardware decoding processor to perform, or the hardware and software modules in the decoding processor can be combined to perform. The software module can be located in a mature storage medium in the field such as a random access memory, a flash memory, a read-only memory, a programmable read-only memory or an electrically erasable programmable memory, a register, etc. The storage medium is located in the memory, and the processor reads the information in the memory and completes the steps of the above method in combination with its hardware.

[0165] It can be understood that in the embodiments of the present invention, the memory may be a volatile memory or a non-volatile memory, or may include both volatile and non-volatile memories. Among them, the non-volatile memory may be a read-only memory (ROM), a programmable read-only memory (PROM), an erasable programmable read-only memory (EPROM), an electrically erasable programmable read-only memory (EEPROM), or a flash memory. The volatile memory may be a random access memory (RAM), which is used as an external cache. By way of example and not limitation, many forms of RAM are available, such as static RAM (SRAM), dynamic RAM (DRAM), synchronous DRAM (SDRAM), double data rate SDRAM (DDR SDRAM), enhanced SDRAM (ESDRAM), synchronous link DRAM (SLDRAM), and direct RAM (DR RAM). It should be noted that the memory of the systems and methods described herein is intended to include, but is not limited to, these and any other suitable types of memory.

[0166] Finally, it should be noted that the terms used in the embodiments of the present invention and the appended claims are for the purpose of describing particular embodiments only and are not intended to be limiting of the embodiments of the present invention.

[0167] For example, as used in the embodiments of the present invention and the appended claims, the singular forms "a," "an," and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise.

[0168] For another example, the terms first type cell group and second type cell group may be used in the embodiments of the present invention, but these types of cell groups should not be limited to these terms. These terms are only used to distinguish the types of cell groups from each other.

[0169] As another example, the phrase "when..." as used herein may be interpreted as "if" or "if" or "when..." or "in response to determining" or "in response to detecting," depending on the context. Similarly, the phrase "if it is determined" or "if (stated condition or event) is detected" may be interpreted as "when it is determined" or "in response to determining" or "when detecting (stated condition or event)" or "in response to detecting (stated condition or event)," depending on the context.

[0170] Those of ordinary skill in the art will appreciate that the units and algorithm steps of each example described in conjunction with the embodiments disclosed herein can be implemented in electronic hardware, or a combination of computer software and electronic hardware. Whether these functions are performed in hardware or software depends on the specific application and design constraints of the technical solution. Professional and technical personnel can use different methods to implement the described functions for each specific application, but such implementation should not be considered to be beyond the scope of the embodiments of the present invention.

[0171] Those skilled in the art can clearly understand that, for the convenience and brevity of description, the specific working processes of the systems, devices and units described above can refer to the corresponding processes in the aforementioned method embodiments and will not be repeated here.

[0172] In the several embodiments provided in the present application, it should be understood that the disclosed systems, devices and methods can be implemented in other ways. For example, the device embodiments described above are only schematic. For example, the division of the units is only a logical function division. There may be other division methods in actual implementation, such as multiple units or components can be combined or integrated into another system, or some features can be ignored or not executed. Another point is that the mutual coupling or direct coupling or communication connection shown or discussed can be through some interfaces, indirect coupling or communication connection of devices or units, which can be electrical, mechanical or other forms.

[0173] The units described as separate components may or may not be physically separated, and the components shown as units may or may not be physical units, that is, they may be located in one place or distributed on multiple network units. Some or all of the units may be selected according to actual needs to achieve the purpose of the embodiments of the present invention.

[0174] In addition, each functional unit in the embodiment of the present invention may be integrated into one processing unit, or each unit may exist physically separately, or two or more units may be integrated into one unit.

[0175] If implemented in the form of a software functional unit and sold or used as an independent product, it can be stored in a computer-readable storage medium. Based on this understanding, the technical solution of the embodiment of the present invention is essentially or the part that contributes to the prior art or the part of the technical solution can be embodied in the form of a software product. The computer software product is stored in a storage medium and includes several instructions for a computer device (which can be a personal computer, a server, or a network device, etc.) to perform all or part of the steps of the method described in the embodiment of the present invention. The aforementioned storage medium includes: various media that can store program codes, such as a USB flash drive, a mobile hard disk, a read-only memory, a random access memory, a magnetic disk or an optical disk.

[0176] The above contents are only specific implementations of the embodiments of the present invention, but the protection scope of the embodiments of the present invention is not limited thereto. Any technician familiar with the technical field can easily think of changes or substitutions within the technical scope disclosed in the embodiments of the present invention, which should be included in the protection scope of the embodiments of the present invention. Therefore, the protection scope of the embodiments of the present invention shall be based on the protection scope of the claims.

Claims

1. A method for monitoring in a vehicle networking system, characterized in that: include: The terminal device acquires corresponding relationship information on the media access control layer, where the corresponding relationship information includes a corresponding relationship between a logical channel for sending data to be transmitted and at least one transmission time length that can be supported by the logical channel; The terminal device generates indication information on the media access control layer according to the corresponding relationship information, where the indication information is used to instruct the terminal device to listen to the resource pool of the at least one transmission time length on the physical layer; as well as The terminal device sends the indication information to the physical layer.

2. The method according to claim 1, characterized in that The method further comprises: The terminal device acquires a set of available transmission resources by listening to a resource pool of at least one transmission time length at the physical layer; The terminal device generates a monitoring result report according to the transmission resource set at the physical layer; The terminal device sends the monitoring result report to the media access control layer.

3. The method according to claim 2, characterized in that The monitoring result report includes the transmission resource set.

4. The method according to claim 3, characterized in that The method further comprises: The terminal device receives the interception result report at the media access control layer, where the interception result report includes the transmission resource set; The terminal device selects a first resource from the transmission resource set at the media access control layer; The terminal device sends data to be transmitted on the first resource.

5. The method according to claim 2, characterized in that: The terminal device generates a monitoring result report according to the transmission resource set at the physical layer, including: The terminal device selects at least one resource from the transmission resource set on the physical layer; The terminal device generates the interception result report on the physical layer, and the interception result report includes the at least one resource.

6. The method according to claim 5, characterized in that Before the terminal device selects at least one resource from the transmission resource set at the physical layer, the method further includes: The terminal device obtains, at the physical layer, information on the channel quality corresponding to each resource in the transmission resource set; The terminal device selects at least one resource from the transmission resource set on the physical layer, including: The terminal device selects the at least one resource from the transmission resource set on the physical layer according to the information of the channel quality corresponding to each resource in the transmission resource set and in the order of channel quality from high to low.

7. The method according to claim 5, characterized in that: The terminal device selects at least one resource from the transmission resource set on the physical layer, including: If the transmission resource set includes resources of multiple transmission time lengths, the terminal device selects a resource of a first transmission time length from the resources of the multiple transmission time lengths at the physical layer; The terminal device determines, on the physical layer, resources of the first transmission time length as the at least one resource.

8. The method according to claim 7, characterized in that Before the terminal device selects a resource with a first transmission time length from the resources with multiple transmission time lengths at the physical layer, the method further includes: The terminal device obtains, on the physical layer, information on channel quality corresponding to resources of each transmission resource length in the multiple transmission time lengths; The selecting a resource with a first transmission time length from the resources with multiple transmission time lengths includes: The terminal device selects the first transmission time length resource from the resources of the multiple transmission time lengths on the physical layer based on the information on the channel quality corresponding to the resources of each transmission resource length in the multiple transmission time lengths.

9. The method according to any one of claims 5 to 8, characterized in that The method further comprises: The terminal device receives the interception result report at the media access control layer, where the interception result report includes the at least one resource; The terminal device selects a first resource from the at least one resource at the media access control layer; The terminal device sends data to be transmitted on the first resource.

10. The method according to claim 9, characterized in that The terminal device selects, at the media access control layer, a first resource from the at least one resource, including: The terminal device randomly selects the first resource from the at least one resource at the media access control layer.

11. The method according to claim 9, characterized in that The terminal device selects, at the media access control layer, a first resource from the at least one resource, including: The terminal device selects the first resource from the at least one resource in descending order of channel quality at the media access control layer.

12. The method according to claim 2, characterized in that: The resources in the monitoring result report are sorted in order from high to low or from low to high according to channel quality.

13. The method according to claim 2, characterized in that The listening result report also includes information on the channel quality corresponding to each resource in the listening result report, and the information on the channel quality corresponding to each resource includes at least one of the following information: received signal strength indication RSSI, reference signal received power RSRP, and reference signal received quality RSRQ; or, The monitoring result report also includes information on the channel quality of resources corresponding to each transmission time length in the monitoring result report.

14. The method according to claim 1, characterized in that The at least one transmission time length includes a first type transmission time length and / or a second type transmission time length, and the length of the first type transmission time length is greater than the length of the second type transmission time length.

15. A terminal device, characterized in that: include: Generates units for: At a media access control layer, obtaining corresponding relationship information, the corresponding relationship information including a corresponding relationship between a logical channel for sending data to be transmitted and at least one transmission time length that can be supported by the logical channel; as well as At the media access control layer, generating indication information according to the corresponding relationship information, wherein the indication information is used to instruct the terminal device to listen to the resource pool of the at least one transmission time length at the physical layer; A transceiver unit is used to send the indication information to the physical layer.

16. The terminal device according to claim 15, characterized in that: The generating unit is further configured to: At the physical layer, acquiring a set of available transmission resources by listening to a resource pool of the at least one transmission time length; At the physical layer, generating a listening result report according to the transmission resource set; Wherein, the transceiver unit is also used for: The monitoring result report is sent to the media access control layer.

17. The terminal device according to claim 16, characterized in that: The monitoring result report includes the transmission resource set.

18. The terminal device according to claim 17, characterized in that: The transceiver unit is also used for: receiving, at the media access control layer, the interception result report including the transmission resource set; At the media access control layer, selecting a first resource from the set of transmission resources; Send data to be transmitted on the first resource.

19. The terminal device according to claim 16, characterized in that: The generating unit is specifically used for: Selecting, on the physical layer, at least one resource from the set of transmission resources; The interception result report is generated on the physical layer, and the interception result report includes the at least one resource.

20. The terminal device according to claim 19, characterized in that: The generating unit is more specifically used for: At the physical layer, obtaining information on channel quality corresponding to each resource in the transmission resource set; On the physical layer, according to the information of the channel quality corresponding to each resource in the transmission resource set, in the order of channel quality from high to low, the at least one resource is selected from the transmission resource set.

21. The terminal device according to claim 19, characterized in that: The generating unit is more specifically used for: If the transmission resource set includes resources of multiple transmission time lengths, selecting a resource of a first transmission time length from the resources of the multiple transmission time lengths on the physical layer; On the physical layer, resources of the first transmission time length are determined as the at least one resource.

22. The terminal device according to claim 21, characterized in that: The generating unit is more specifically used for: Before selecting a resource of a first transmission time length from resources of the multiple transmission time lengths on the physical layer, the terminal device obtains, on the physical layer, information on channel quality corresponding to resources of each transmission resource length among the multiple transmission time lengths; On the physical layer, the resource of the first transmission time length is selected from the resources of the multiple transmission time lengths according to the information of the channel quality corresponding to the resources of each transmission resource length in the multiple transmission time lengths.

23. The terminal device according to any one of claims 19 to 22, characterized in that: The transceiver unit is also used for: receiving, at the media access control layer, the interception result report including the at least one resource; At the media access control layer, selecting a first resource from the at least one resource; The data to be transmitted is sent on the first resource.

24. The terminal device according to claim 23, characterized in that: The transceiver unit is specifically used for: At the media access control layer, the first resource is randomly selected from the at least one resource.

25. The terminal device according to claim 23, characterized in that: The transceiver unit is also used for: On the media access control layer, the first resource is selected from the at least one resource in descending order of channel quality.

26. The terminal device according to claim 16, characterized in that: The resources in the monitoring result report are sorted in order from high to low or from low to high according to channel quality.

27. The terminal device according to claim 16, characterized in that: The monitoring result report further includes information on the channel quality corresponding to each resource in the monitoring result report, and the information on the channel quality includes at least one of the following information: Received signal strength indication RSSI, reference signal received power RSRP and reference signal received quality RSRQ; or The monitoring result report also includes information on the channel quality of resources corresponding to each transmission time length in the monitoring result report.

28. The terminal device according to claim 15, characterized in that: The at least one transmission time length includes a first type transmission time length and / or a second type transmission time length, and the length of the first type transmission time length is greater than the length of the second type transmission time length.

29. A terminal device, characterized in that: The terminal device comprises: A processor is configured to obtain, on a media access control layer, corresponding relationship information, the corresponding relationship information including a corresponding relationship between a logical channel for sending data to be transmitted and at least one transmission time length that can be supported by the logical channel; and generate, on the media access control layer, indication information according to the corresponding relationship information, the indication information being used to instruct the terminal device to listen to a resource pool of the at least one transmission time length on a physical layer; A transceiver is used to send the indication information to the physical layer.

30. A computer readable medium, characterized in that The computer-readable medium is used to store a computer program, which includes instructions for executing the method according to any one of claims 1 to 14.

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