Wireless communication method, terminal and network device

Abstract

An embodiment of the present application provides a wireless communication method, a terminal, and a network device. The method includes: a first terminal acquires transmission resources in a resource pool; the first terminal performs sidelink transmission on the transmission resources; wherein, the configuration parameters of the resource pool include: information related to energy-saving terminals and / or information related to different energy-saving levels. Thus, the purpose of terminal energy saving can be achieved.

Description

Technical Field

[0001] The embodiments of the present application relate to the field of communications, and more specifically, to a wireless communication method, terminal, and network device. Background Art

[0002] Device-to-Device (D2D), Vehicle-to-Vehicle (V2V), and Vehicle-to-Everything (V2X) communication architectures can use sidelink (SL) technology to enable inter-device communication. This differs from traditional cellular systems, where data is sent and received via base stations. This direct device-to-device communication approach offers higher spectral efficiency and lower transmission latency.

[0003] In the sidelink research of New Radio (NR) Release 16, the focus was on vehicle-mounted terminals, which did not involve energy-saving terminals. However, in the R17 sidelink enhancement project, research needs to be conducted on handheld terminals. Handheld terminals are limited by battery capacity, meaning they require energy conservation. Therefore, how to achieve energy conservation for such terminals is a technical issue that needs to be addressed in this application. Summary of the Invention

[0004] The embodiments of the present application provide a wireless communication method, a terminal, and a network device, thereby achieving the energy saving purpose of an energy-saving terminal.

[0005] In a first aspect, a wireless communication method is provided, comprising: a first terminal obtaining a transmission resource from a resource pool; the first terminal performing sidelink transmission on the transmission resource; wherein configuration parameters of the resource pool include information related to energy-saving terminals and / or information related to different energy-saving levels.

[0006] In a second aspect, a wireless communication method is provided, comprising: a network device sending configuration parameters of a resource pool to a first terminal, wherein the configuration parameters of the resource pool include information related to energy-saving terminals and / or information related to different energy-saving levels.

[0007] According to a third aspect, a terminal is provided, which is a first terminal and includes: a processing unit and a communication unit, wherein the processing unit is used to obtain transmission resources in a resource pool; the communication unit is used to perform side transmission on the transmission resources; wherein the configuration parameters of the resource pool include: relevant information of the energy-saving terminal and / or relevant information of different energy-saving levels.

[0008] In a fourth aspect, a network device is provided, including: a communication unit configured to send configuration parameters of a resource pool to a first terminal; wherein the configuration parameters of the resource pool include: information related to energy-saving terminals and / or information related to different energy-saving levels.

[0009] In a fifth aspect, a terminal is provided, including a processor and a memory. The memory is configured to store a computer program, and the processor is configured to call and run the computer program stored in the memory to execute the method in the first aspect or its various implementation manners described above.

[0010] In a sixth aspect, a network device is provided, including a processor and a memory. The memory is configured to store a computer program, and the processor is configured to call and run the computer program stored in the memory to execute the method in the second aspect or its various implementation manners described above.

[0011] In a seventh aspect, an apparatus is provided for implementing the method in any one of the first aspect to the second aspect or its various implementation manners described above.

[0012] Specifically, the apparatus includes: a processor configured to call and run a computer program from a memory, so that a device installed with the apparatus executes the method in any one of the first aspect to the second aspect or its various implementation manners described above.

[0013] In an eighth aspect, a computer-readable storage medium is provided for storing a computer program, and the computer program causes a computer to execute the method in any one of the first aspect to the second aspect or its various implementation manners described above.

[0014] In a ninth aspect, a computer program product is provided, including computer program instructions, and the computer program instructions cause a computer to execute the method in any one of the first aspect to the second aspect or its various implementation manners described above.

[0015] In a tenth aspect, a computer program is provided, which when running on a computer, causes the computer to execute the method in any one of the first aspect to the second aspect or its various implementation manners described above.

[0016] In this application, by carrying information related to energy-saving terminals and / or information related to different energy-saving levels in the configuration information of the resource pool, the purpose of terminal energy saving can be achieved. Description of the Drawings

[0017] Figure 1 It is a schematic diagram of a network coverage situation provided by an embodiment of this application;

[0018] Figure 2 It is another schematic diagram of a network coverage situation provided by an embodiment of this application;

[0019] Figure 3 Another schematic diagram of network coverage provided by an embodiment of the present application;

[0020] Figure 4 Schematic diagram of unicast transmission provided by an embodiment of the present application;

[0021] Figure 5 Schematic diagram of a broadcast transmission provided by an embodiment of the present application;

[0022] Figure 6 Another schematic diagram of broadcast transmission provided by an embodiment of the present application;

[0023] Figure 7 Schematic diagram of a resource distribution provided by an embodiment of the present application;

[0024] Figure 8 Another schematic diagram of resource distribution provided by an embodiment of the present application;

[0025] Figure 9 Another schematic diagram of resource distribution provided by an embodiment of the present application;

[0026] Figure 10 Flowchart of a wireless communication method provided by an embodiment of the present application;

[0027] Figure 11 Another schematic diagram of resource distribution provided by an embodiment of the present application;

[0028] Figure 12 Shows a schematic block diagram of the terminal 1200 according to an embodiment of the present application;

[0029] Figure 13 Shows a schematic block diagram of the network device 1300 according to an embodiment of the present application;

[0030] Figure 14 Is a schematic structural diagram of a communication device 1400 provided by an embodiment of the present application;

[0031] Figure 15 Is a schematic structural diagram of the device provided by an embodiment of the present application;

[0032] Figure 16 Is a schematic block diagram of a communication system 1600 provided by an embodiment of the present application. Detailed implementation manners

[0033] Next, the technical solutions in the embodiments of the present application will be described with reference to the accompanying drawings in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, rather than all of the embodiments. For the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative efforts belong to the scope of protection of the present application.

[0034] Before introducing the technical solution of this application, the related concepts of this application will be elaborated as follows:

[0035] I. Network coverage in sidelink communication (i.e., communication based on sidelink technology)

[0036] In sidelink communication, according to the network coverage of the terminals involved in the communication, it can be divided into in-network-coverage sidelink communication, partial-network-coverage sidelink communication, and out-of-network-coverage sidelink communication, as shown in Figure 1 , Figure 2 and Figure 3 respectively.

[0037] As shown in Figure 1 , in in-network-coverage sidelink communication, all terminals involved in sidelink communication are within the coverage of the same network device, enabling these terminals within the coverage of the same network device to receive the configuration signaling of the network device and thus perform sidelink communication based on the same sidelink configuration.

[0038] As shown in Figure 2 , in the case of partial-network-coverage sidelink communication, some terminals involved in sidelink communication are within the coverage of the network device. These terminals can receive the configuration signaling of the network device and perform sidelink communication according to the configuration of the network device. For terminals outside the network coverage, they cannot receive the configuration signaling of the network device. In this case, the terminals outside the network coverage will determine the sidelink configuration based on the pre-configuration information and the information carried in the Physical Sidelink Broadcast Channel (PSBCH) sent by the terminals within the network coverage, and then perform sidelink communication.

[0039] As shown in Figure 3 , for out-of-network-coverage sidelink communication, all terminals involved in sidelink communication are outside the network coverage, and all terminals determine the sidelink configuration based on the pre-configuration information to perform sidelink communication.

[0040] II. D2D

[0041] Device-to-device communication is a SL technology based on D2D. Different from the traditional cellular system where communication data is received or sent through network devices, device-to-device communication has higher spectral efficiency and lower transmission latency. The vehicle-to-everything (V2X) system adopts the direct communication method from terminal to terminal and defines two transmission modes in the 3rd Generation Partnership Project (3GPP): the first mode and the second mode.

[0042] First mode: The transmission resources of the terminal are allocated by the network device, and the terminal sends data on the sidelink according to the resources allocated by the network device. The network device can allocate resources for single transmission to the terminal, or can also allocate semi-static transmission resources for the terminal. For example Figure 1 as shown in the figure, the terminal is within the network coverage area, and the network device allocates the transmission resources for sidelink transmission to the terminal.

[0043] Second mode: The terminal selects a resource from the resource pool for data transmission. For example Figure 3 as shown in the figure, the terminal is outside the cell coverage area, and the terminal independently selects transmission resources from the pre-configured resource pool for sidelink transmission; or as Figure 1 shown in the figure, the terminal independently selects transmission resources from the resource pool configured by the network for sidelink transmission.

[0044] III. NR-V2X

[0045] In NR-V2X, autonomous driving needs to be supported, so higher requirements are put forward for data interaction between vehicles, such as higher throughput, lower latency, higher reliability, larger coverage, more flexible resource allocation, etc.

[0046] In NR-V2X, unicast and multicast transmission modes are introduced. For unicast transmission, there is only one terminal at the receiving end. For example Figure 4 as shown in the figure, unicast transmission is carried out between UE1 and UE2; for multicast transmission, the receiving end is all the terminals within a communication group, or all the terminals within a certain transmission distance. For example Figure 5 as shown in the figure, UE1, UE2, UE3, and UE4 form a communication group, where UE1 sends data, and the other UEs within the group are all receiving ends; for the broadcast transmission mode, the receiving end is any terminal around the sending end. For example Figure 6 as shown in the figure, UE1 is the sending end, and the other UEs around it, namely UE2 - UE6, are all receiving ends.

[0047] IV. In LTE-V2X, the resource selection method based on listening

[0048] In LTE-V2X, full listening or partial listening is supported. Among them, full listening means that the terminal can listen to the data sent by other terminals in all time slots (or subframes) except the time slot for sending data; while partial listening (partial sensing) is to achieve energy saving of the terminal. The terminal only needs to listen to some time slots or subframes, and selects resources based on the results of partial listening.

[0049] Specifically, when the upper layer does not configure partial listening, that is, the full listening method is adopted by default for resource selection. The standard (3GPP TS36.213) defines resource selection based on full listening. Among them, when a new data packet arrives at time n and resource selection is required, assuming that the terminal currently performing resource selection is terminal 1, then terminal 1 will perform resource selection within the selection window [n + T1, n + T2] milliseconds according to the listening results in the listening window, where T1 ≤ 4; T 2min (prio TX ) ≤ T2 ≤ 100, T 2min (prio TX ) is a parameter related to the priority, and the selection of T1 should be greater than the processing delay of the terminal. The selection of T2 needs to be within the delay requirement range of the service. For example, if the delay requirement of the service is 50 ms, then 20 ≤ T2 ≤ 50; if the delay requirement of the service is 100 ms, then 20 ≤ T2 ≤ 100. As shown below Figure 7 Here, T2 = 100. Terminal 1 detects the sidelink control information (SCI) of other terminals on resource 1, indicating that resource 2 in the selection window is reserved. And if the RSRP measured by terminal 1 on resource 1 exceeds the RSRP threshold, then the terminal excludes resource 2 within the selection window, that is, it is considered that resource 2 is an unavailable resource. On the contrary, for resource 4 within the selection window, if the terminal does not detect SCI on the corresponding resource 3 within the listening window, it means that resource 4 is not reserved by other terminals. Therefore, terminal 1 can reserve this resource 4. If the service to be transmitted by terminal 1 is a periodic service, then terminal 1 can reserve resources 5 - 7.

[0050] Adopting the full listening method, the process of the terminal performing resource selection within the selection window includes:

[0051] The terminal takes all available resources within the selection window as a set A, and the terminal performs an exclusion operation on the resources in set A:

[0052] 1. If the terminal does not have listening results for some sub - frames within the listening window, then the resources on the corresponding sub - frames within the selection window are excluded.

[0053] 2. If the terminal detects a Physical Sidelink Control Channel (PSCCH) within the listening window, it measures the Reference Signal Received Power (RSRP) of the Physical Sidelink Shared Channel (PSSCH) scheduled by the PSCCH. If the measured PSSCH-RSRP is higher than the PSSCH-RSRP threshold, and there is a resource conflict between the resources reserved according to the reserved information in the PSCCH and the resources to be used by the terminal within the selection window, then this terminal excludes this resource from set A. Among them, the selection of the PSSCH-RSRP threshold is determined by the priority information carried in the detected PSCCH and the priority of the data to be transmitted by this terminal.

[0054] 3. If the number of remaining resources in set A is less than 20% of the total number of resources, the terminal will increase the PSSCH-RSRP threshold by 3 dB and repeat steps 1 - 2 until the number of remaining resources in set A is greater than 20% of the total number of resources.

[0055] 4. The terminal performs Sidelink Received Signal Strength Indicator (S-RSSI) detection on the remaining resources in set A, sorts them according to the energy level from high to low, and puts the 20% (relative to the number of resources in set A) resources with the lowest energy into set B.

[0056] 5. The terminal randomly selects a resource from set B with equal probability for data transmission.

[0057] When the higher layer configures selection based on partial listening, the terminal based on partial listening selects at least Y resources within the selection window, and determines whether at least Y resources can be used as candidate resources according to the listening result. If so, put them into set B. If the number of elements in set B is greater than or equal to 20% of the total number of resources, report set B to the higher layer.

[0058] V. In NR-V2X, the resource selection method based on full listening

[0059] NR-V2X supports periodic services and aperiodic services. In the current standard, a resource selection method based on full sensing is discussed, which is similar to the resource selection method based on full sensing in LTE-V2X. The specific sensing process and resource selection process can be found in 3GPP TS38.214. In LTE-V2X, when a terminal selects transmission resources, it will send data on these resources. However, it is possible that two terminals select the same transmission resources, resulting in resource conflicts and reducing system performance. To solve this problem, a pre-emption and re-evaluation mechanism is introduced in NR-V2X, enabling the terminal to determine whether there are resource conflicts with other terminals before using the selected resources. If there is no conflict, the terminal can continue to use the selected transmission resources. If there are resource conflicts, it needs to avoid and re-select resources according to the corresponding mechanism to avoid resource conflicts.

[0060] 1. Re-evaluation mechanism

[0061] After the terminal completes resource selection, for the resources that have been selected but not indicated by the sidelink control information on the transmitting side, it is still possible to be reserved by other terminals with bursty aperiodic services, resulting in resource collisions. To address this issue, a re-evaluation mechanism is proposed, that is, the terminal continues to sense the sidelink control information after completing resource selection and re-evaluates the selected but unindicated resources at least once.

[0062] As Figure 8 shown, resources w, x, y, z, v are the time-frequency resources selected by the terminal. Resource x is located in time slot m. For resources y and z that the terminal is about to first indicate by sending sidelink control information on resource x (resource x has been indicated by the sidelink control information in resource w before). The terminal performs resource sensing at least once in time slot m - T3, that is, determines the selection window and the sensing window, and excludes resources within the selection window to obtain a candidate resource set. If resource y or z is not in the candidate resource set, the terminal re-selects the time-frequency resources among y and z that are not in the candidate resource set, or can also re-select any selected but unindicated resources, such as any of the resources y, z, and v. The above T3 depends on the processing capacity of the terminal.

[0063] 2. Pre-emption mechanism

[0064] In NR-V2X, the conclusions regarding the pre-emption mechanism are all described from the perspective of the terminal whose resources are pre-empted. After completing resource selection, the terminal continues to listen for sidelink control information. If the time-frequency resources that have been selected and indicated by sending sidelink control information meet the following three conditions, resource reselection is triggered:

[0065] (1) The resources reserved in the listened sidelink control information overlap with the resources already selected and indicated by the terminal, including full overlap and partial overlap.

[0066] (2) The RSRP of the PSCCH corresponding to the sidelink control information listened by the terminal or the RSRP of the PSSCH scheduled by this PSCCH is greater than the SL RSRP threshold.

[0067] (3) The priority carried in the listened sidelink control information is higher than the priority of the data to be sent by the terminal.

[0068] As Figure 9 shown, resources w, x, y, z, v are the time-frequency resources already selected by the terminal. Resource x is located in time slot m. For resources x and y that the terminal is about to indicate by sending sidelink control information in time slot m and have been indicated by the sidelink control information sent by the terminal before. The terminal performs resource listening at least once in time slot m - T3 to determine the candidate resource set. If resource x or y is not in the candidate resource set (meeting conditions 1 and 2 above), further determine whether it is due to the indication of the sidelink control information carrying high priority that resource x or y is not in the candidate resource set (meeting condition 3 above). If so, the terminal performs resource re-selection and re-selects the time-frequency resources that meet the above three conditions among x and y.

[0069] It should be understood that the terminal in the embodiments of the present application may also be referred to as a User Equipment (UE), access terminal, user unit, user station, mobile station, mobile device, remote station, remote terminal, mobile device, user terminal, wireless communication device, user agent, or user device, etc. The terminal may be a station (STAION, ST) in a WLAN, a cellular phone, a cordless phone, a Session Initiation Protocol (SIP) phone, a Wireless Local Loop (WLL) station, a Personal Digital Assistant (PDA) device, a handheld device with wireless communication function, a computing device, or other processing devices connected to a wireless modem, a vehicle-mounted device, a wearable device, and a next-generation communication system, for example, a terminal in an NR network or a terminal in a future evolved Public Land Mobile Network (PLMN) network, etc.

[0070] It should be understood that the "indication" mentioned in the embodiments of the present application may be a direct indication, an indirect indication, or may also represent an associated relationship. For example, A indicates B, which may mean that A directly indicates B, for example, B can be obtained through A; it may also mean that A indirectly indicates B, for example, A indicates C, and B can be obtained through C; it may also mean that there is an associated relationship between A and B.

[0071] In the description of the embodiments of the present application, the term "corresponding" may represent a direct or indirect corresponding relationship between two parties, may also represent an associated relationship between two parties, or may also be a relationship such as indication and being indicated, configuration and being configured, etc.

[0072] As an example rather than a limitation, in the embodiments of the present application, the terminal may also be a wearable device. A wearable device may also be referred to as a wearable intelligent device, which is a general term for devices developed by applying wearable technology to intelligentize daily wear, such as glasses, gloves, watches, clothing, and shoes, etc. A wearable device is a portable device that is directly worn on the body or integrated into the user's clothes or accessories. A wearable device is not only a hardware device, but also realizes powerful functions through software support, data interaction, and cloud interaction. Broadly speaking, wearable intelligent devices include those with complete functions and large sizes that can realize complete or partial functions without relying on a smart phone, such as smart watches or smart glasses, etc., and those that only focus on a certain type of application function and need to cooperate with other devices such as smart phones, such as various smart bracelets and smart jewelry for physical sign monitoring.

[0073] A network device may be a device used to communicate with a mobile device. The network device may be an access point (AP) in WLAN, a base station (BTS) in GSM or CDMA, a base station (NodeB, NB) in WCDMA, an evolved base station (eNB or eNodeB) in LTE, or a relay station or access point, or a network device or base station (gNB) in a vehicle-mounted device, a wearable device, and an NR network, or a network device in a future evolved PLMN network, etc.

[0074] It should be understood that the embodiments of the present application are applicable not only to communication frameworks such as D2D, V2V, and V2X, but also to any other terminal-to-terminal communication framework, and the present application does not limit this. The embodiments of the present application are applied to unlicensed spectrum, which can also be called unlicensed spectrum.

[0075] As mentioned above, in the topic of R17 side link enhancement, it is necessary to conduct research on handheld terminals. Handheld terminals are limited by battery capacity, that is, handheld terminals are terminals that need energy saving. Therefore, how to achieve energy saving of such terminals is a technical problem that needs to be solved urgently in this application. In order to solve this technical problem, the inventive concept of this application is: to carry relevant information of energy-saving terminals and / or relevant information of different energy-saving levels in the configuration information of the resource pool.

[0076] The technical solution of this application will be described in detail below:

[0077] Figure 10 A flowchart of a wireless communication method provided in an embodiment of the present application is shown in FIG. Figure 10 As shown, the method includes the following steps:

[0078] Step S1010: The first terminal obtains transmission resources from a resource pool, where configuration parameters of the resource pool include: relevant information of energy-saving terminals and / or relevant information of different energy-saving levels.

[0079] Step S1020: The first terminal performs sidelink transmission on the transmission resource.

[0080] Optionally, this application may be applicable to Figure 1 Sideline communications within the network coverage shown can also be applied to Figure 2 The side communication of the partial network coverage shown can also be applied to Figure 3 This application does not limit side communications outside the network coverage shown.

[0081] Optionally, this application can be applicable to the above two transmission modes defined by 3GPP, namely the first mode and the second mode, and this application places no restrictions thereon. In the first mode, the above transmission resources are allocated by the network device to the first terminal. In the second mode, the first terminal independently selects transmission resources from a pre-configured resource pool; alternatively, the first terminal can independently select transmission resources from a resource pool configured by the network.

[0082] It should be understood that in R17, energy-saving terminals such as handheld terminals are involved. Therefore, in this application, the terminals will be classified according to their power saving levels.

[0083] It should be understood that in this application, the power saving level is also described as the power saving state, the power saving mode, or the power saving state level, etc., and this application places no restrictions thereon.

[0084] Optionally, for any terminal, the power saving level of the terminal is determined according to the capabilities and / or remaining battery power of the terminal. For example: Table 1 shows the correspondence between the power saving level and the remaining battery power:

[0085] Table 1

[0086] Energy saving level Remaining power P 0 P≥80％ 1 50％≤P<80％ 2 20％≤P<50％ 3 P≤20％

[0087] Optionally, for any terminal, the capabilities of the terminal can be measured by various software and hardware parameters of the terminal, and this application places no restrictions on the software and hardware parameters here.

[0088] It should be understood that in this application, the remaining battery power of the terminal is also described as the battery state of the terminal, and this application places no restrictions thereon.

[0089] Optionally, the power saving levels of each terminal in this application can be predefined, specified by a protocol, or configured by the network, and this application places no restrictions thereon.

[0090] Optionally, the definition of the power saving level in this application is as follows:

[0091] One implementation method is that two power saving levels can be introduced in this application. One power saving level corresponds to terminals that do not require energy saving or have no energy saving requirements, such as vehicle-mounted terminals. The other power saving level corresponds to terminals that require energy saving or have energy saving requirements, such as handheld terminals. Optionally, the above one power saving level can be defined as power saving level 0, and the other power saving level can be defined as power saving level 1. Of course, it is also possible to define the above one power saving level as power saving level 1 and the other power saving level as power saving level 0, and this application places no restrictions thereon.

[0092] Another implementable manner is that in the present application, more types of energy-saving levels can be introduced. For example, 4 types of energy-saving levels are introduced. The energy-saving level 0 corresponds to terminals that do not require energy saving or have no energy-saving requirements, such as in-vehicle terminals, etc.; the energy-saving levels 1, 2, and 3 correspond to terminals that need to consider energy saving, and different energy-saving levels respectively correspond to different terminal capabilities and / or different remaining battery levels.

[0093] Optionally, the stronger the terminal's capabilities and / or the more the remaining battery level, the lower the energy-saving level of the terminal. The weaker the terminal's capabilities and / or the less the remaining battery level, the higher the energy-saving level of the terminal. Or, the stronger the terminal's capabilities and / or the more the remaining battery level, the higher the energy-saving level of the terminal. The weaker the terminal's capabilities and / or the less the remaining battery level, the lower the energy-saving level of the terminal. The present application does not limit this.

[0094] Optionally, the relevant information of the energy-saving terminal and / or the relevant information of different energy-saving levels includes at least one of the following:

[0095] (1) The first indication information, which is used to indicate whether the resource pool supports the energy-saving terminal, or indicates the energy-saving levels supported by the resource pool, or indicates that the resource pool supports the random resource selection method, or indicates that the resource pool supports the resource selection method based on partial listening.

[0096] (2) The second indication information, which is used to indicate whether the energy-saving terminal supports the re-evaluation mechanism and / or the pre-emption mechanism, or indicates whether the different energy-saving levels respectively support the re-evaluation mechanism and / or the pre-emption mechanism.

[0097] (3) The transmission parameters respectively corresponding to different energy-saving levels.

[0098] (4) The third indication information, which is used to indicate the resource selection method corresponding to the energy-saving terminal, or indicates the resource selection methods respectively corresponding to different energy-saving levels.

[0099] (5) The minimum number of subframes or time slots included in the selection window corresponding to different energy-saving levels.

[0100] (6) The listening parameters respectively corresponding to different energy-saving levels.

[0101] (7) The first ratio respectively corresponding to different energy-saving levels, and the first ratio is the threshold of the ratio of the number of resources in the candidate resource set of the terminal to the number of resources in the selection window of the terminal.

[0102] (8) The RSRP threshold values or RSRP offset values corresponding to different energy-saving levels, where the RSRP offset value is the offset value relative to the default RSRP threshold value, and the default RSRP threshold value is the RSRP threshold value corresponding to a terminal that does not require energy saving.

[0103] Regarding the description in item (1):

[0104] It should be understood that for terminals that require energy saving and those that do not, or terminals with different energy-saving levels, in order to achieve the energy-saving purpose of the terminals, whether they support the re-evaluation mechanism and / or the pre-emption mechanism, the involved transmission parameters, the corresponding resource selection methods, the minimum number of subframes or time slots included in the selection window, the corresponding listening parameters, the corresponding first ratio, the RSRP threshold value or the RSRP offset value, etc. have different configurations. For example: For terminals that need to consider energy saving, when selecting resources, they can select resources based on random resource selection or based on partial listening results, while for terminals that do not need to consider energy saving, they select resources according to the complete listening results. Or, when terminals that need energy saving and those that do not use the same resource pool, the terminals that do not need energy saving need to perform special processing on the terminals that need energy saving, such as not being able to pre-empt the transmission resources reserved by the energy-saving terminals. Therefore, in this case, for any terminal, it needs to know whether the corresponding resource pool supports energy-saving terminals, or indicates the energy-saving level supported by the resource pool, or indicates that the resource pool supports the random resource selection method, or indicates that the resource pool supports the resource selection method based on partial listening. Based on this, in this application, the configuration parameters of the resource pool can include the above first indication information.

[0105] For example, when the value of this first indication information is 1, or TRUE, or enabled, it means that this resource pool supports energy-saving terminals, and when the value of this first indication information is 0, or FALSE, or disabled, it means that this resource pool does not support energy-saving terminals. Or, when the value of this first indication information is 1, or TRUE, or enabled, it means that this resource pool does not support energy-saving terminals, and when the value of this first indication information is 0, or FALSE, or disabled, it means that this resource pool supports energy-saving terminals.

[0106] Another example: There are a total of 4 energy-saving levels determined according to predefined, protocol regulations or network configurations, namely energy-saving level 0, energy-saving level 1, energy-saving level 2, and energy-saving level 3. This first indication information can indicate at least one energy-saving level supported by this resource pool, such as supporting energy-saving levels 2 and 3.

[0107] For another example, the first indication information indicates support for the random resource selection method or the resource selection method based on partial listening, and these two resource selection methods are usually the resource selection methods adopted by energy-saving terminals. Therefore, in this case, it implicitly indicates that the resource pool supports energy-saving terminals.

[0108] Regarding item (2), the explanation is as follows:

[0109] In NR-V2X, a re-evaluation and pre-emption mechanism is introduced. That is, after the terminal selects the transmission resources, it still needs to perform listening before using the resources to determine whether the selected transmission resources conflict with other terminals. If a conflict occurs, the resources need to be re-selected. Therefore, during the re-evaluation and pre-emption process, the terminal needs to continuously perform channel listening before transmission, and this process also consumes energy. For energy-saving terminals, this continuous listening process is not appropriate. Therefore, for terminals with energy-saving requirements, the second indication information in the resource pool configuration information can indicate whether the re-evaluation and / or pre-emption mechanism is supported for energy-saving terminals, or indicate whether the re-evaluation mechanism and / or pre-emption mechanism is supported for different energy-saving levels respectively.

[0110] For example, when the value of the second indication information is 1, or TRUE, or enabled, it means that the re-evaluation and / or pre-emption mechanism is supported for energy-saving terminals; when the value of the second indication information is 0, or FALSE, or disabled, it means that the re-evaluation and / or pre-emption mechanism is not supported for energy-saving terminals. Or, when the value of the second indication information is 1, or TRUE, or enabled, it means that the re-evaluation and / or pre-emption mechanism is not supported for energy-saving terminals; when the value of the second indication information is 0, or FALSE, or disabled, it means that the re-evaluation and / or pre-emption mechanism is supported for energy-saving terminals.

[0111] For another example: There are a total of 4 types of energy-saving state levels of the terminal determined according to predefined, protocol regulations or network configurations, namely energy-saving level 0, energy-saving level 1, energy-saving level 2, and energy-saving level 3. The second indication information respectively indicates whether the re-evaluation and / or pre-emption mechanism is supported for different energy-saving levels. For example, the second indication information is 4 bits, each bit corresponds to 1 energy-saving level respectively, and the value of each bit is 1 or 0, indicating support or non-support for the re-evaluation and / or pre-emption mechanism respectively. For example, when the value of the bit sequence is 1111, it means that terminals of all four energy-saving levels support the re-evaluation and / or pre-emption mechanism; when the value is 0000, it means that terminals of all four energy-saving levels do not support the re-evaluation and / or pre-emption mechanism; when the value is 1100, it means that terminals of energy-saving levels 0 and 1 support the re-evaluation and / or pre-emption mechanism, and terminals of energy-saving levels 2 and 3 do not support the re-evaluation and / or pre-emption mechanism.

[0112] Regarding item (3), the explanation is as follows:

[0113] Optionally, the transmission parameters include at least one of the following: maximum transmission power, power control parameter, maximum number of transmissions, but are not limited thereto.

[0114] To achieve the purpose of energy saving, the maximum transmission power of the terminal can be reduced. Therefore, different maximum transmission powers can be configured for different energy saving levels in the configuration information of the resource pool. For example, in this application, two energy saving levels or more are introduced. When two energy saving levels are introduced, the corresponding relationship between different energy saving levels and the maximum transmission power is shown in Table 2. When four energy saving levels are introduced, the corresponding relationship between different energy saving levels and the maximum transmission power is shown in Table 3:

[0115] Table 2

[0116] Energy saving level Maximum transmission power P_ps_max (dBm) 0 23 1 20

[0117] Table 3

[0118] Energy saving level Maximum transmission power P_ps_max (dBm) 0 23 1 20 2 17 3 14

[0119] It should be noted that the corresponding relationship between the energy saving level and the maximum transmission power is not limited to the corresponding relationships shown in Table 2 and Table 3.

[0120] In the NR-V2X system, the terminal can perform power control according to the sidelink path loss or the downlink path loss. Specifically, the transmission power of the terminal is determined by the following formula (1):

[0121] P PSSCH (i) = min(P CMAX , P MAX,CBR , min(P PSSCH,D (i), P PSSCH,SL (i)))[dBm] (1)

[0122] The power based on the downlink path loss is determined by formula (2):

[0123]

[0124] The power based on the downlink path loss is determined by formula (3):

[0125]

[0126] P CMAX represents the configured maximum transmission power, P MAX,CBR represents the configured maximum transmission power based on the Channel Busy Ratio (CBR), represents the number of Physical Resource Blocks (PRBs) occupied by the PSSCH, P O,D 、PO,SL and α D and α SL are both power control parameters.

[0127] For terminals in different energy-saving states, different values of P O,D , P O,SL , α D and α SL can be configured, and at least one of them is taken. Here, P O,SL and α SL are taken as an example for illustration.

[0128] In NR-V2X, the value range of P O,SL is an integer between [-16, 15]; the value range of α SL is {0, 0.4, 0.5, 0.6, 0.7, 0.8, 0.9, 1}. Therefore, corresponding P O,SL and α SL can be configured for terminals with different energy-saving levels. For example, when there are two energy-saving levels, the corresponding P O,SL and α SL are shown in Table 4 and Table 5 respectively. When there are four energy-saving levels, the corresponding P O,SL and α SL are shown in Table 6 and Table 7 respectively.

[0129] Table 4

[0130] Energy saving level <![CDATA[P O,SL > 0 15 1 12

[0131] Table 5

[0132] Energy saving level <![CDATA[α SL > 0 1 1 0.7

[0133] Table 6

[0134] Energy saving level <![CDATA[P O,SL > 0 15 1 12 2 10 3 5

[0135] Table 7

[0136] Energy saving level <![CDATA[α SL > 0 1 1 0.7 2 0.5 3 0

[0137] In NR-V2X, for a sidelink data, that is, the maximum number of transmissions through sidelink communication or sidelink link technology is 32 to ensure transmission reliability. However, the more times the terminal sends data, the more power it consumes. Therefore, for different energy-saving levels, different maximum numbers of transmissions can be configured to achieve the purpose of energy saving.

[0138] For example, the configuration information of the resource pool includes the MaxNumTransmission parameter, which represents the maximum number of transmissions of sidelink data. For example, when there are two energy-saving levels, the corresponding relationship between this parameter and the energy-saving levels is shown in Table 8, and when there are four energy-saving levels, the corresponding relationship between this parameter and the energy-saving levels is shown in Table 9:

[0139] Table 8

[0140] Energy saving level MaxNumTransmission 0 32 1 16

[0141] Table 9

[0142] Energy saving level MaxNumTransmission 0 32 1 16 2 8 3 4

[0143] Regarding item (4):

[0144] Optionally, for terminals that do not require energy saving, a resource selection method based on full listening can be adopted, and for terminals that require energy saving, a random resource selection method or a resource selection method based on partial listening can be adopted. Therefore, the configuration parameters of the resource pool can include third indication information, which is used to indicate the resource selection method corresponding to energy-saving terminals or the resource selection methods corresponding to different energy-saving levels respectively.

[0145] For example, the third indication information indicates that the energy-saving terminal adopts a random resource selection method or a resource selection method based on partial listening.

[0146] For another example, the third indication information indicates that terminals with energy-saving level 1 adopt a resource selection method based on partial listening, terminals with energy-saving levels 2 and 3 adopt a random resource selection method, and terminals with energy-saving level 0 adopt a resource selection method based on full listening.

[0147] Regarding item (5):

[0148] As described above, the partially listening-based terminal selects at least Y time slots (or sub-frames) within the selection window, and determines whether the resources on the at least Y time slots (or sub-frames) can be used as candidate resources according to the listening result. Here, Y is the minimum number of sub-frames or time slots determined by the terminal in the selection window. For example, the selection window is [n + T1, n + T2]. The terminal determines at least Y time slots (or sub-frames) within this selection window, and determines whether the resources on the at least Y sub-frames are available according to the listening result within the listening window. Among them, the corresponding relationship between the energy-saving level and the minimum number of sub-frames or time slots (minNumCandidateSF) determined in the selection window can be configured. For example: when there are two energy-saving levels, the corresponding relationship between the energy-saving level and the minimum number of sub-frames or time slots (minNumCandidateSF) determined in the selection window is shown in Table 10. When there are 4 energy-saving state levels, the corresponding relationship between the energy-saving level and the minimum number of sub-frames or time slots (minNumCandidateSF) determined in the selection window is shown in Table 11:

[0149] Table 10

[0150] Energy saving level minNumCandidateSF 0 100 1 50

[0151] Table 11

[0152]

[0153]

[0154] Explanation for item (6):

[0155] Optionally, the listening parameter includes any one of the following: a parameter for determining the listening time slot or listening sub-frame within the listening window, a parameter for determining the listening duration within the listening window, a parameter for determining the end position of the listening window, and a parameter for determining the start position of the listening window.

[0156] When the terminal performs partial listening, it needs to listen to the subframes corresponding to n - k * Pstep, where n represents the time for resource selection, Pstep is a constant or a configuration parameter of the resource pool, and k is determined by the resource pool configuration parameter gapCandidateSensing. This parameter gapCandidateSensing is used to indicate which time slots or subframes need to be listened to. In LTE-V2X, this parameter is a bit sequence of length 10. In the above formula, k represents that the value of the k-th bit of the parameter gapCandidateSensing is 1. In NR-V2X, when energy-saving terminals are supported in the resource pool, this parameter gapCandidateSensing can be configured as a parameter related to the energy-saving level. For example, corresponding parameters gapCandidateSensing are configured for different energy-saving levels respectively.

[0157] For example, when the system supports two energy-saving levels, the correspondence between the configuration parameter gapCandidateSensing and the energy-saving levels is shown in Table 12. When the system supports four energy-saving levels, the correspondence between the configuration parameter gapCandidateSensing and the energy-saving levels is shown in Table 13.

[0158] Table 12

[0159] Energy saving level gapCandidateSensing 0 1,1,1,1,1,1,1,1,1,1 1 1,1,1,1,1,0,0,0,0,0

[0160] Table 13

[0161] Energy saving level gapCandidateSensing 0 1,1,1,1,1,1,1,1,1,1 1 1,1,1,1,1,0,0,0,0,0 2 1,1,0,0,0,0,0,0,0,0 3 1,0,0,0,0,0,0,0,0,0

[0162] If only non-periodic type services are supported in the resource pool, the terminal cannot know the service arrival time, and non-periodic service terminals will not reserve transmission resources for the transmission of the next data block, but only reserve transmission resources for the retransmission of the current data block. Therefore, the terminal cannot determine the candidate resource set based on past listening results. Usually, the terminal will only perform listening when the service arrives, and the listening duration is W. The terminal selects resources according to the listening results within this duration W. As Figure 11 shown, the terminal needs to select resources at time n. For example, when data arrives, resource selection is triggered. The terminal determines the listening window as [n + t1, n + t2], and the terminal determines the transmission resources within the selection window according to the listening results within the listening window.

[0163] Optionally, since the longer the listening duration, the greater the power consumption of the terminal, and the listening duration is determined by the parameter for determining the listening duration within the listening window, therefore, in this application, different parameters for determining the listening duration within the listening window can be configured for different energy-saving levels.

[0164] Optionally, as Figure 11As shown, usually t1 is determined according to the processing time of the terminal. Therefore, the listening duration depends on the end position of the listening window, as Figure 11 shown by t2. Similarly, since the longer the listening duration is, the greater the power consumption of the terminal is, and the end position of the listening window is determined by the parameter for determining the end position of the listening window. Therefore, in this application, different parameters for determining the end position of the listening window can be configured for different energy-saving levels. Similarly, assuming that the end position of the listening window is determined, the listening duration depends on the start position of the listening window. Since the longer the listening duration is, the greater the power consumption of the terminal is, and the start position of the listening window is determined by the parameter for determining the start position of the listening window. Therefore, in this application, different parameters for determining the start position of the listening window can be configured for different energy-saving levels.

[0165] Regarding item (7):

[0166] As described above, in the resource selection method based on full listening in LTE-V2X, if the number of remaining resources in set A is less than 20% of the total number of resources, the terminal will increase the threshold of PSSCH-RSRP by 3 dB and repeat steps 1 to 2 until the number of remaining resources in set A is greater than 20% of the total number of resources. In NR-V2X, this ratio is a parameter related to the priority, and the range of its values is {20%, 30%, 50%}. For energy-saving terminals, if steps 1 to 2 are continuously executed multiple times, it will inevitably cause the problem of excessive power consumption. Therefore, this application can configure the corresponding relationship between different energy-saving levels and the above first ratio.

[0167] For example: The system supports two energy-saving levels, and the corresponding relationship between different energy-saving levels and the first ratio is shown in Table 14. The system supports four energy-saving levels, and the corresponding relationship between different energy-saving levels and the first ratio is shown in Table 15.

[0168] Table 14

[0169] Energy saving level First ratio 0 0.2 1 0.1

[0170] Table 15

[0171]

[0172]

[0173] Optionally, the higher the energy-saving level value is, the more the terminal needs to save energy, and the lower the corresponding first ratio is, that is, the ratio of the number of resources in the candidate resource set after resource exclusion to the number of resources in the selection window is more likely to exceed the first ratio, and there is no need to increase the RSRP threshold for iterative processing.

[0174] Regarding item (8):

[0175] As described above, in LTE-V2X, if a terminal detects a PSCCH within a listening window, it measures the RSRP of the PSSCH scheduled by the PSCCH. If the measured PSSCH-RSRP is higher than the PSSCH-RSRP threshold (i.e., the RSRP threshold value), and there is a resource conflict between the reserved transmission resources determined according to the reserved information in the PSCCH and the resources to be used by this terminal within the selection window, then this terminal excludes this resource from set A. Among them, the selection of the PSSCH-RSRP threshold is determined by the priority information carried in the detected PSCCH and the priority of the data to be transmitted by this terminal. In NR-V2X, when a terminal detects a PSCCH within a listening window, it can measure the RSRP of the PSCCH and compare it with the PSCCH-RSRP threshold, or measure the RSRP of the PSSCH scheduled by the PSCCH and compare it with the PSSCH-RSRP threshold.

[0176] In a possible implementation manner, for the purpose of energy saving, different RSRP threshold values or different RSRP offset values delta_RSRP can be configured for different energy-saving levels. During the listening process, the terminal determines the corresponding RSRP threshold value according to the energy-saving level corresponding to this terminal. Optionally, the RSRP threshold value or the RSRP offset value delta_RSRP is related to the priority. The new RSRP threshold determined according to this parameter is: RSRP_PSstate = RSRP + delta_RSRP; where RSRP represents the default RSRP threshold value, and this default RSRP threshold value is the RSRP threshold value corresponding to a terminal without energy saving (or a terminal with an energy-saving level of 0); the default RSRP threshold value is included in the configuration parameters of the resource pool, and this threshold value is used by a terminal without energy saving during the listening process. For an energy-saving terminal, an RSRP offset value can be configured, and the RSRP threshold value used by the energy-saving terminal during the listening process can be determined according to the default RSRP threshold value and the RSRP offset value.

[0177] For example, in this application, two energy-saving levels or more energy-saving levels are introduced. When two energy-saving levels are introduced, the corresponding relationship between different energy-saving levels and the RSRP offset value is shown in Table 16. When four energy-saving levels are introduced, the corresponding relationship between different energy-saving levels and the RSRP offset value is shown in Table 17. The table only exemplarily gives the RSRP offset values of different energy-saving levels corresponding to one priority level. For different priority levels, the corresponding relationship between the energy-saving level and the RSRP offset value (or the RSRP threshold value) can be configured.

[0178] Table 16

[0179] Energy saving level delta_RSRP (dB) 0 0 1 3

[0180] Table 17

[0181] Energy saving level delta_RSRP (dB) 0 0 1 3 2 6 3 9

[0182] In another possible implementation, different RSRP thresholds or RSRP offsets can be configured for different energy-saving levels. These RSRP thresholds or RSRP offsets are used to determine the RSRP thresholds used by terminals not requiring energy-saving during the listening process for terminals at different energy-saving levels. As described above, to achieve energy-saving purposes, it is necessary to minimize the need for re-evaluation and pre-preemption by energy-saving terminals. That is, when an energy-saving terminal selects or reserves transmission resources, these resources should be minimized from being preempted by other terminals, thereby avoiding the need for the energy-saving terminal to perform re-evaluation, pre-preemption judgments, and reselect resources. Therefore, terminals not requiring energy-saving should minimize preempting the resources of energy-saving terminals. In this case, corresponding RSRP thresholds or RSRP offsets can be configured for energy-saving terminals or different energy-saving levels. During the listening process, terminals not requiring energy-saving can determine the corresponding RSRP threshold based on the energy-saving level of the transmitter corresponding to the PSCCH detected within the listening window. Optionally, the RSRP threshold or RSRP offset is related to the priority level. The RSRP offset value is used to determine the RSRP threshold used for energy-saving terminals during the listening process. The new RSRP threshold determined based on this parameter is: RSRP_PSstate = RSRP + delta_RSRP; where RSRP represents the default RSRP threshold value, which is the RSRP threshold value corresponding to terminals that do not require energy saving (or terminals with an energy saving level of 0) during the listening process; the resource pool configuration parameters include the default RSRP threshold value. For energy-saving terminals, an RSRP offset value can also be configured. The RSRP threshold value used for energy-saving terminals during the listening process can be determined based on the default RSRP threshold value and the RSRP threshold value.

[0183] For RSRP threshold values configured for different energy-saving levels, when a terminal that does not need energy saving detects PSCCH during the listening process and learns the energy-saving level corresponding to the transmitter of the PSCCH (for example, the energy-saving level corresponding to the terminal is obtained through the indication information in the SCI), the terminal that does not need energy saving determines the RSRP threshold value corresponding to the terminal that does not need energy saving according to the energy-saving level, and compares the RSRP measurement value for the PSCCH transmitter with the RSRP threshold value. If it is higher than the threshold value, the resources reserved for the terminal are excluded within the selection window.

[0184] For example, two energy-saving levels or more are introduced in this application. When two energy-saving levels are introduced, the corresponding relationship between different energy-saving levels and the RSRP threshold is shown in Table 18. When four energy-saving levels are introduced, the corresponding relationship between different energy-saving levels and the RSRP threshold is shown in Table 19. The table only exemplarily gives the RSRP thresholds of different energy-saving levels corresponding to one priority level. For different priority levels, the corresponding relationship between the energy-saving levels and the RSRP thresholds (or RSRP offset values) can be configured.

[0185] Table 18

[0186] Energy saving level RSRP threshold (dBm) 0 -60 1 -70

[0187] Table 19

[0188] Energy saving level RSRP threshold (dBm) 0 -60 1 -70 2 -80 3 -90

[0189] It should be noted that for different energy-saving levels in Tables 2 to 19 above, the values on the right side of the table can be different or the same. This application does not limit this.

[0190] In summary, in this application, the relevant information of energy-saving terminals and / or the relevant information of different energy-saving levels are carried in the configuration information of the resource pool. Thus, the purpose of terminal energy saving can be achieved. For example: when the configuration information of the resource pool carries the first indication information, terminals that do not need energy saving need to perform special processing on energy-saving terminals, such as not being able to preempt the transmission resources reserved by energy-saving terminals, so as to achieve the purpose of energy saving. When the configuration information of the resource pool carries the second indication information, some energy-saving terminals can be made not to support the re-evaluation and / or preemption mechanism, so as to achieve the purpose of energy saving. For terminals with higher energy-saving levels, their maximum transmission power, power control parameters, and maximum transmission times are smaller, so as to achieve the purpose of energy saving. When the configuration information of the resource pool carries the third indication information indicating that the energy-saving terminal adopts a random resource selection method or a resource selection method based on partial listening, the purpose of energy saving can also be achieved. When the energy-saving level is higher, the minimum number of subframes or time slots in the listening window is smaller, and the purpose of energy saving can also be achieved. When the energy-saving level is higher, the listening duration is shorter, and the purpose of energy saving can also be achieved. When the energy-saving level is higher, the corresponding first ratio is smaller, and the purpose of energy saving can also be achieved. When the energy-saving level is higher, the RSRP threshold used by the energy-saving terminal during the listening process is higher, or the RSRP threshold used by the non-energy-saving terminal for the energy-saving terminal during the listening process is lower, and the purpose of energy saving can also be achieved.

[0191] As described above in conjunction with Figure 10 the method embodiments of this application are described in detail. Below in conjunction with Figures 12 to 16, the device embodiments of the present application will be described in detail. It should be understood that the device embodiments correspond to the method embodiments, and similar descriptions can refer to the method embodiments.

[0192] Figure 12 FIG. shows a schematic block diagram of a terminal 1200 according to an embodiment of the present application. As Figure 12 shown, the terminal 1200 is a first terminal, and the terminal 1200 includes:

[0193] A processing unit 1210, configured to obtain transmission resources in a resource pool.

[0194] A communication unit 1220, configured to perform sidelink transmission on the transmission resources.

[0195] Wherein, the configuration parameters of the resource pool include: information related to energy-saving terminals and / or information related to different energy-saving levels.

[0196] Optionally, the information related to energy-saving terminals and / or the information related to different energy-saving levels includes at least one of the following:

[0197] First indication information, which is used to indicate whether the resource pool supports energy-saving terminals or to indicate the energy-saving levels supported by the resource pool.

[0198] Second indication information, which is used to indicate whether the energy-saving terminal supports a re-evaluation mechanism and / or a pre-emption mechanism, or to indicate whether different energy-saving levels respectively support a re-evaluation mechanism and / or a pre-emption mechanism.

[0199] Transmission parameters respectively corresponding to different energy-saving levels.

[0200] Third indication information, which is used to indicate the resource selection method corresponding to the energy-saving terminal or to indicate the resource selection methods respectively corresponding to different energy-saving levels.

[0201] The minimum number of subframes or time slots included in the selection window corresponding to different energy-saving levels.

[0202] Listening parameters respectively corresponding to different energy-saving levels.

[0203] First ratios respectively corresponding to different energy-saving levels, where the first ratio is a threshold value of the ratio of the number of resources in the candidate resource set of the terminal to the number of resources in the selection window of the terminal.

[0204] RSRP threshold values or RSRP offset values respectively corresponding to different energy-saving levels, where the RSRP offset value is an offset value relative to the default RSRP threshold value, and the default RSRP threshold value is the RSRP threshold value corresponding to a terminal without energy saving.

[0205] Optionally, the transmission parameters include at least one of the following: maximum transmission power, power control parameter, maximum number of transmissions.

[0206] Optionally, the resource selection method corresponding to the energy-saving terminal is a random resource selection method or a resource selection method based on partial listening.

[0207] Optionally, the listening parameters include any one of the following:

[0208] Parameters for determining the listening time slots or listening sub-frames within the listening window.

[0209] Parameters for determining the listening duration within the listening window.

[0210] Parameters for determining the end position of the listening window.

[0211] Parameters for determining the start position of the listening window.

[0212] Optionally, for any terminal with an energy-saving level, the energy-saving level of the terminal is determined according to the capabilities and / or remaining power of the terminal.

[0213] Optionally, for any terminal with an energy-saving level, the stronger the capabilities and / or the more the remaining power of the terminal, the lower the energy-saving level of the terminal. The weaker the capabilities and / or the less the remaining power of the terminal, the higher the energy-saving level of the terminal.

[0214] Optionally, for any terminal with an energy-saving level, the stronger the capabilities and / or the more the remaining power of the terminal, the higher the energy-saving level of the terminal. The weaker the capabilities and / or the less the remaining power of the terminal, the lower the energy-saving level of the terminal.

[0215] Optionally, in some embodiments, the above communication unit may be a communication interface or transceiver, or an input / output interface of a communication chip or system-on-chip. The above processing unit may be one or more processors.

[0216] It should be understood that the terminal 1200 according to the embodiments of the present application may correspond to the first terminal in the method embodiments of the present application, and the above and other operations and / or functions of each unit in the terminal 1200 are respectively for implementing Figure 10 the corresponding processes of the first terminal in the method shown, and for the sake of brevity, they will not be described in detail here.

[0217] Figure 13 Fig. shows a schematic block diagram of a network device 1300 according to an embodiment of the present application. As Figure 13 shown, the network device 1300 includes: a communication unit 1310, configured to send configuration parameters of a resource pool to a first terminal. Among them, the configuration parameters of the resource pool include: relevant information of energy-saving terminals and / or relevant information of different energy-saving levels.

[0218] Optionally, the relevant information of the energy-saving terminal and / or the relevant information of different energy-saving levels includes at least one of the following:

[0219] The first indication information, which is used to indicate whether the resource pool supports the energy-saving terminal or the energy-saving level supported by the resource pool.

[0220] The second indication information, which is used to indicate whether the energy-saving terminal supports the re-evaluation mechanism and / or the pre-emption mechanism, or whether different energy-saving levels respectively support the re-evaluation mechanism and / or the pre-emption mechanism.

[0221] Transmission parameters respectively corresponding to different energy-saving levels.

[0222] The third indication information, which is used to indicate the resource selection method corresponding to the energy-saving terminal or the resource selection methods respectively corresponding to different energy-saving levels.

[0223] The minimum number of sub-frames or time slots included in the selection window corresponding to different energy-saving levels.

[0224] Listening parameters respectively corresponding to different energy-saving levels.

[0225] The first ratio respectively corresponding to different energy-saving levels, where the first ratio is the threshold value of the ratio of the number of resources in the candidate resource set of the terminal to the number of resources in the selection window of the terminal.

[0226] The RSRP threshold value or the RSRP offset value respectively corresponding to different energy-saving levels, where the RSRP offset value is the offset value relative to the default RSRP threshold value, and the default RSRP threshold value is the RSRP threshold value corresponding to the terminal without energy saving.

[0227] Optionally, the transmission parameters include at least one of the following: maximum transmission power, power control parameter, maximum number of transmissions.

[0228] Optionally, the resource selection method corresponding to the energy-saving terminal is the random resource selection method or the resource selection method based on partial listening.

[0229] Optionally, the listening parameters include any one of the following:

[0230] Parameters for determining the listening time slots or listening sub-frames within the listening window.

[0231] Parameters for determining the listening duration within the listening window.

[0232] Parameters for determining the end position of the listening window.

[0233] Parameters for determining the start position of the listening window.

[0234] Optionally, for a terminal with any energy-saving level, the energy-saving level of the terminal is determined according to the capabilities and / or remaining power of the terminal.

[0235] Optionally, for a terminal with any energy-saving level, the stronger the capabilities and / or the more the remaining power of the terminal, the lower the energy-saving level of the terminal. The weaker the capabilities and / or the less the remaining power of the terminal, the higher the energy-saving level of the terminal.

[0236] Optionally, for a terminal with any energy-saving level, the stronger the capabilities and / or the more the remaining power of the terminal, the higher the energy-saving level of the terminal. The weaker the capabilities and / or the less the remaining power of the terminal, the lower the energy-saving level of the terminal.

[0237] Optionally, in some embodiments, the above communication unit may be a communication interface or transceiver, or an input / output interface of a communication chip or system-on-chip.

[0238] It should be understood that the network device 1300 according to the embodiments of the present application may correspond to the network device in the method embodiments of the present application, and the above and other operations and / or functions of each unit in the network device 1300 are respectively for implementing the method executed by the network device in the method embodiments of the present application. For the sake of brevity, they will not be elaborated here.

[0239] Figure 14 It is a schematic structural diagram of a communication device 1400 provided by an embodiment of the present application. ​ The illustrated communication device 1400 includes a processor 1410, and the processor 1410 can call and run a computer program from a memory to implement the method in the embodiments of the present application.

[0240] Optionally, as ​ shown, the communication device 1400 may further include a memory 1420. Among them, the processor 1410 can call and run a computer program from the memory 1420 to implement the method in the embodiments of the present application.

[0241] Among them, the memory 1420 may be a separate device independent of the processor 1410, or may be integrated in the processor 1410.

[0242] Optionally, as ​ shown, the communication device 1400 may further include a transceiver 1430, and the processor 1410 can control the transceiver 1430 to communicate with other devices. Specifically, it can send information or data to other devices, or receive information or data sent by other devices.

[0243] Among them, the transceiver 1430 may include a transmitter and a receiver. The transceiver 1430 may further include antennas, and the number of antennas may be one or more.

[0244] Optionally, the communication device 1400 may specifically be the network device of the embodiment of the present application, and the communication device 1400 may implement the corresponding processes implemented by the network device in each method of the embodiment of the present application. For the sake of brevity, it will not be elaborated here.

[0245] Optionally, the communication device 1400 may specifically be the terminal of the embodiment of the present application, and the communication device 1400 may implement the corresponding processes implemented by the terminal in each method of the embodiment of the present application. For the sake of brevity, it will not be elaborated here.

[0246] ​ It is a schematic structural diagram of the device of the embodiment of the present application. ​ The shown device 1500 includes a processor 1510. The processor 1510 can call and run a computer program from the memory to implement the method in the embodiment of the present application.

[0247] Optionally, as ​ shown, the device 1500 may further include a memory 1520. Among them, the processor 1510 can call and run a computer program from the memory 1520 to implement the method in the embodiment of the present application.

[0248] Among them, the memory 1520 may be a separate device independent of the processor 1510, or may be integrated in the processor 1510.

[0249] Optionally, the device 1500 may further include an input interface 1530. Among them, the processor 1510 can control the input interface 1530 to communicate with other devices or chips. Specifically, it can obtain information or data sent by other devices or chips.

[0250] Optionally, the device 1500 may further include an output interface 1540. Among them, the processor 1510 can control the output interface 1540 to communicate with other devices or chips. Specifically, it can output information or data to other devices or chips.

[0251] Optionally, the device may be applied to the network device in the embodiment of the present application, and the device can implement the corresponding processes implemented by the network device in each method of the embodiment of the present application. For the sake of brevity, it will not be elaborated here.

[0252] Optionally, the device may be applied to the terminal in the embodiment of the present application, and the device can implement the corresponding processes implemented by the terminal in each method of the embodiment of the present application. For the sake of brevity, it will not be elaborated here.

[0253] Optionally, the device mentioned in the embodiment of the present application may also be a chip. For example, it may be a system-on-chip, system chip, chip system or system-on-chip.

[0254] ​ is a schematic block diagram of a communication system 1600 provided by an embodiment of the present application. As ​ shown, the communication system 1600 includes a terminal 1610 and a network device 1620.

[0255] Among them, the terminal 1610 can be used to implement the corresponding functions implemented by the terminal in the above method, and the network device 1620 can be used to implement the corresponding functions implemented by the network device or the base station in the above method. For the sake of brevity, details are not described herein again.

[0256] It should be understood that the processor in the embodiment of the present application may be an integrated circuit chip with signal processing capabilities. In the implementation process, the steps of the above method embodiments can be completed by the integrated logic circuit in the hardware of the processor or instructions in software form. The above processor may be a general-purpose processor, a digital signal processor (DSP), an application specific integrated circuit (ASIC), a field programmable gate array (FPGA), or other programmable logic devices, discrete gate or transistor logic devices, discrete hardware components. It can implement or execute the various methods, steps, and logic block diagrams disclosed in the embodiments of the present application. The general-purpose processor may be a microprocessor or the processor may also be any conventional processor, etc. The steps of the method disclosed in combination with the embodiments of the present application can be directly embodied as being executed and completed by a hardware decoding processor, or executed and completed by a combination of hardware and software modules in the decoding processor. The software module may be located in a mature storage medium in the art 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 combines its hardware to complete the steps of the above method.

[0257] It will be appreciated that the memory in the embodiments of the present application 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 but not limitation, many forms of RAM are available, such as static random access memory (SRAM), dynamic random access memory (DRAM), synchronous dynamic random access memory (SDRAM), double data rate synchronous dynamic random access memory (DDR SDRAM), enhanced synchronous dynamic random access memory (ESDRAM), synchlink dynamic random access memory (SLDRAM), and direct rambus random access memory (DR RAM). It should be noted that the memory of the systems and methods described herein is intended to include but not be limited to these and any other suitable types of memory.

[0258] It should be understood that the above memory is by way of example but not limitation. For example, the memory in the embodiments of the present application may also be a static random access memory (SRAM), a dynamic random access memory (DRAM), a synchronous dynamic random access memory (SDRAM), a double data rate synchronous dynamic random access memory (DDR SDRAM), an enhanced synchronous dynamic random access memory (ESDRAM), a synch link dynamic random access memory (SLDRAM), and a direct rambus random access memory (DR RAM), and so on. That is to say, the memory in the embodiments of the present application is intended to include but not be limited to these and any other suitable types of memory.

[0259] The embodiments of the present application further provide a computer-readable storage medium for storing a computer program.

[0260] Optionally, the computer-readable storage medium can be applied to the network device or the base station in the embodiments of the present application, and the computer program causes the computer to execute the corresponding processes implemented by the network device or the base station in the various methods of the embodiments of the present application. For the sake of brevity, details are not described herein again.

[0261] Optionally, the computer-readable storage medium can be applied to the mobile terminal / terminal in the embodiments of the present application, and the computer program causes the computer to execute the corresponding processes implemented by the mobile terminal / terminal in the various methods of the embodiments of the present application. For the sake of brevity, details are not described herein again.

[0262] The embodiments of the present application further provide a computer program product including computer program instructions.

[0263] Optionally, the computer program product can be applied to the network device or the base station in the embodiments of the present application, and the computer program instructions cause the computer to execute the corresponding processes implemented by the network device or the base station in the various methods of the embodiments of the present application. For the sake of brevity, details are not described herein again.

[0264] Optionally, the computer program product can be applied to the mobile terminal / terminal in the embodiments of the present application, and the computer program instructions cause the computer to execute the corresponding processes implemented by the mobile terminal / terminal in the various methods of the embodiments of the present application. For the sake of brevity, details are not described herein again.

[0265] The embodiments of the present application further provide a computer program.

[0266] Optionally, the computer program can be applied to the network device or the base station in the embodiments of the present application. When the computer program runs on the computer, it causes the computer to execute the corresponding processes implemented by the network device or the base station in the various methods of the embodiments of the present application. For the sake of brevity, details are not described herein again.

[0267] Optionally, the computer program can be applied to the mobile terminal / terminal in the embodiments of the present application. When the computer program runs on the computer, it causes the computer to execute the corresponding processes implemented by the mobile terminal / terminal in the various methods of the embodiments of the present application. For the sake of brevity, details are not described herein again.

[0268] Those of ordinary skill in the art will realize that the units and algorithm steps of each example described in combination with the embodiments disclosed herein can be implemented by electronic hardware, or a combination of computer software and electronic hardware. Whether these functions are executed in hardware or software depends on the specific application and design constraints of the technical solution. A professional technician can use different methods to implement the described functions for each specific application, but such implementation should not be considered to exceed the scope of this application.

[0269] 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 foregoing method embodiments and will not be elaborated herein.

[0270] In several embodiments provided in this 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 merely illustrative. For example, the division of the units is only a logical function division, and there may be other division methods in actual implementation. For example, 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 displayed or discussed couplings or direct couplings or communication connections to each other can be through some interfaces, and the indirect couplings or communication connections of the devices or units can be in electrical, mechanical, or other forms.

[0271] The units described as separate components may or may not be physically separated, and the components displayed as units may or may not be physical units, that is, they can be located in one place, or can be distributed to multiple network units. Some or all of the units can be selected according to actual needs to achieve the purpose of the solution of this embodiment.

[0272] In addition, the functional units in each embodiment of this application can be integrated in a processing unit, or each unit can exist physically alone, or two or more units can be integrated in one unit.

[0273] When the above-mentioned functions are implemented in the form of software functional units and sold or used as independent products, they can be stored in a computer-readable storage medium. In view of such understanding, the technical solution of the present application, essentially or the part that contributes to the prior art, or a 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 causing a computer device (which may be a personal computer, a server, or a network device, etc.) to execute all or part of the steps of the methods described in various embodiments of the present application. The foregoing storage medium includes: various media that can store program codes, such as USB flash drives, mobile hard disks, read-only memories (ROMs), random access memories (RAMs), magnetic disks, or optical discs.

[0274] As described above, the above is only the specific implementation manner of the present application, but the protection scope of the present application is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present application can easily think of changes or substitutions, which should all be covered by the protection scope of the present application. Therefore, the protection scope of the present application should be subject to the protection scope of the claims.

Claims

1. A wireless communication method, characterized in that, Including: The first terminal obtains transmission resources in the resource pool; The first terminal performs sidelink transmission on the transmission resources; Wherein, the configuration parameters of the resource pool include: information related to energy-saving terminals and / or information related to energy-saving levels; Wherein, the information related to the energy-saving terminals and / or the information related to the energy-saving levels includes at least one of the following: Second indication information, which is used to indicate whether the energy-saving terminal supports the re-evaluation mechanism and / or the pre-emption mechanism, or to indicate whether different energy-saving levels respectively support the re-evaluation mechanism and / or the pre-emption mechanism; First ratios corresponding to different energy-saving levels respectively, where the first ratio is the threshold of the ratio of the number of resources in the candidate resource set of the terminal to the number of resources in the selection window of the terminal; Reference signal received power (RSRP) threshold values or RSRP offset values corresponding to different energy-saving levels respectively, where the RSRP offset value is the offset value relative to the default RSRP threshold value, and the default RSRP threshold value is the RSRP threshold value corresponding to a terminal that does not require energy saving.

2. The method according to claim 1, wherein The information related to the energy-saving terminals and / or the information related to the energy-saving levels further includes at least one of the following: First indication information, which is used to indicate whether the resource pool supports energy-saving terminals, or to indicate the energy-saving levels supported by the resource pool; Transmission parameters corresponding to different energy-saving levels respectively; Third indication information, which is used to indicate the resource selection method corresponding to the energy-saving terminal, or to indicate the resource selection methods corresponding to different energy-saving levels respectively; The minimum number of subframes or time slots included in the selection window corresponding to different energy-saving levels; Listening parameters corresponding to different energy-saving levels respectively.

3. The method according to claim 2, wherein The transmission parameters include at least one of the following: maximum transmit power, power control parameters, maximum number of transmissions.

4. The method according to claim 2, wherein The resource selection method is a random resource selection method or a resource selection method based on partial listening.

5. The method according to any one of claims 2 to 4, characterized in that The listening parameters include any one of the following: Parameters for determining the listening time slots or listening subframes within the listening window; Parameters for determining the listening duration within the listening window; Parameters for determining the end position of the listening window; Parameters for determining the start position of the listening window.

6. The method according to any one of claims 1 to 4, characterized in that For any terminal with an energy-saving level, the energy-saving level of the terminal is determined according to the capability and / or remaining battery power of the terminal.

7. The method according to claim 6, wherein For any terminal with an energy-saving level, the stronger the capability and / or the more the remaining battery power of the terminal, the lower the energy-saving level of the terminal; the weaker the capability and / or the less the remaining battery power of the terminal, the higher the energy-saving level of the terminal.

8. The method according to claim 6, characterized in that For any terminal with an energy-saving level, the stronger the capability and / or the more the remaining battery power of the terminal, the higher the energy-saving level of the terminal; the weaker the capability and / or the less the remaining battery power of the terminal, the lower the energy-saving level of the terminal.

9. A wireless communication method, characterized in that, Including: The network device sends the configuration parameters of the resource pool to the first terminal; Wherein, the configuration parameters of the resource pool include: information related to energy-saving terminals and / or information related to different energy-saving levels; Wherein, the information related to the energy-saving terminals and / or the information related to the energy-saving levels includes at least one of the following: Second indication information, where the second indication information is used to indicate whether the energy-saving terminal supports a re-evaluation mechanism and / or a pre-emption mechanism, or to indicate whether different energy-saving levels respectively support a re-evaluation mechanism and / or a pre-emption mechanism; First ratios respectively corresponding to different energy-saving levels, where the first ratio is a threshold value of the ratio of the number of resources in the candidate resource set of the terminal to the number of resources in the selection window of the terminal; Reference signal received power (RSRP) threshold values or RSRP offset values respectively corresponding to different energy-saving levels, where the RSRP offset value is an offset value relative to a default RSRP threshold value, and the default RSRP threshold value is the RSRP threshold value corresponding to a terminal that does not require energy saving.

10. The method according to claim 9, wherein The relevant information of the energy-saving terminal and / or the relevant information of different energy-saving levels further includes at least one of the following: First indication information, where the first indication information is used to indicate whether the resource pool supports an energy-saving terminal, or to indicate the energy-saving levels supported by the resource pool; Transmission parameters respectively corresponding to different energy-saving levels; Third indication information, where the third indication information is used to indicate the resource selection method corresponding to the energy-saving terminal, or to indicate the resource selection methods respectively corresponding to different energy-saving levels; The minimum number of subframes or time slots included in the selection window corresponding to different energy-saving levels; Listening parameters respectively corresponding to different energy-saving levels.

11. The method according to claim 10, wherein The transmission parameters include at least one of the following: maximum transmit power, power control parameters, maximum number of transmissions.

12. The method according to claim 10, characterized in that, The resource selection method corresponding to the energy-saving terminal is a random resource selection method or a resource selection method based on partial listening.

13. The method according to any one of claims 10 - 12, characterized in that, The listening parameters include any one of the following: Parameters for determining the listening time slots or listening subframes within the listening window; Parameters for determining the listening duration within the listening window; Parameters for determining the end position of the listening window; Parameters for determining the start position of the listening window.

14. The method according to any one of claims 9 - 12, characterized in that, For a terminal at any energy-saving level, the energy-saving level of the terminal is determined according to the capabilities and / or remaining battery power of the terminal.

15. The method according to claim 14, wherein For a terminal at any energy-saving level, the stronger the capabilities and / or the more the remaining battery power of the terminal, the lower the energy-saving level of the terminal; the weaker the capabilities and / or the less the remaining battery power of the terminal, the higher the energy-saving level of the terminal.

16. The method according to claim 14, wherein For a terminal at any energy-saving level, the stronger the capabilities and / or the more the remaining battery power of the terminal, the higher the energy-saving level of the terminal; the weaker the capabilities and / or the less the remaining battery power of the terminal, the lower the energy-saving level of the terminal.

17. A terminal, the terminal being a first terminal, characterized in that, Comprising: A processing unit, configured to obtain transmission resources in a resource pool; A communication unit, configured to perform sidelink transmission on the transmission resources; Wherein, the configuration parameters of the resource pool include: relevant information of the energy-saving terminal and / or relevant information of different energy-saving levels; Wherein, the relevant information of the energy-saving terminal and / or the relevant information of the energy-saving level includes at least one of the following: Second indication information, where the second indication information is used to indicate whether the energy-saving terminal supports a re-evaluation mechanism and / or a pre-emption mechanism, or to indicate whether different energy-saving levels respectively support a re-evaluation mechanism and / or a pre-emption mechanism; The first ratio corresponding to different energy-saving levels, where the first ratio is the threshold of the ratio of the number of resources in the candidate resource set of the terminal to the number of resources in the selection window of the terminal; The reference signal received power (RSRP) threshold or RSRP offset value corresponding to different energy-saving levels, where the RSRP offset value is the offset value relative to the default RSRP threshold, and the default RSRP threshold is the RSRP threshold corresponding to a terminal without energy-saving requirements.

18. The terminal according to claim 17, wherein The relevant information of the energy-saving terminal and / or the relevant information of different energy-saving levels further includes at least one of the following: The first indication information, which is used to indicate whether the resource pool supports energy-saving terminals or to indicate the energy-saving levels supported by the resource pool; The transmission parameters corresponding to different energy-saving levels; The third indication information, which is used to indicate the resource selection method corresponding to the energy-saving terminal or to indicate the resource selection methods corresponding to different energy-saving levels; The minimum number of subframes or time slots included in the selection window corresponding to different energy-saving levels; The listening parameters corresponding to different energy-saving levels.

19. The terminal according to claim 18, characterized in that, The transmission parameters include at least one of the following: maximum transmit power, power control parameters, maximum number of transmissions.

20. The terminal according to claim 18, wherein The resource selection method corresponding to the energy-saving terminal is a random resource selection method or a resource selection method based on partial listening.

21. The terminal according to any one of claims 18-20, characterized in that, The listening parameters include any one of the following: The parameters for determining the listening time slots or listening subframes within the listening window; The parameters for determining the listening duration within the listening window; The parameters for determining the end position of the listening window; The parameters for determining the start position of the listening window.

22. The terminal according to any one of claims 17-20, characterized in that, For a terminal at any energy-saving level, the energy-saving level of the terminal is determined according to the capabilities and / or remaining battery power of the terminal.

23. The terminal according to claim 22, wherein For a terminal at any energy-saving level, the stronger the capabilities and / or the more the remaining battery power of the terminal, the lower the energy-saving level of the terminal; the weaker the capabilities and / or the less the remaining battery power of the terminal, the higher the energy-saving level of the terminal.

24. The terminal according to claim 22, wherein For a terminal at any energy-saving level, the stronger the capabilities and / or the more the remaining battery power of the terminal, the higher the energy-saving level of the terminal; the weaker the capabilities and / or the less the remaining battery power of the terminal, the lower the energy-saving level of the terminal.

25. A network device, characterized in that, Including: A communication unit, configured to send the configuration parameters of the resource pool to a first terminal; Wherein, the configuration parameters of the resource pool include: the relevant information of the energy-saving terminal and / or the relevant information of different energy-saving levels; Wherein, the relevant information of the energy-saving terminal and / or the relevant information of the energy-saving levels includes at least one of the following: The second indication information, which is used to indicate whether the energy-saving terminal supports the re-evaluation mechanism and / or the pre-emption mechanism, or to indicate whether different energy-saving levels respectively support the re-evaluation mechanism and / or the pre-emption mechanism; The first ratio corresponding to different energy-saving levels, where the first ratio is the threshold of the ratio of the number of resources in the candidate resource set of the terminal to the number of resources in the selection window of the terminal; The reference signal received power (RSRP) threshold values or RSRP offset values corresponding to different energy-saving levels, where the RSRP offset value is the offset value relative to the default RSRP threshold value, and the default RSRP threshold value is the RSRP threshold value corresponding to a terminal that does not require energy saving.

26. The network device according to claim 25, characterized in that, The relevant information of the energy-saving terminal and / or the relevant information of different energy-saving levels further includes at least one of the following: The first indication information, which is used to indicate whether the resource pool supports energy-saving terminals or to indicate the energy-saving levels supported by the resource pool; The transmission parameters corresponding to different energy-saving levels respectively; The third indication information, which is used to indicate the resource selection method corresponding to the energy-saving terminal or to indicate the resource selection methods corresponding to different energy-saving levels respectively; The minimum number of subframes or time slots included in the selection window corresponding to different energy-saving levels; The listening parameters corresponding to different energy-saving levels respectively.

27. The network device according to claim 26, wherein The transmission parameters include at least one of the following: maximum transmission power, power control parameters, maximum number of transmissions.

28. The network device according to claim 26, wherein The resource selection method corresponding to the energy-saving terminal is a random resource selection method or a resource selection method based on partial listening.

29. The network device according to any one of claims 26 - 28, characterized in that, The listening parameters include any one of the following: The parameters used to determine the listening time slots or listening subframes within the listening window; The parameters used to determine the listening duration within the listening window; The parameters used to determine the end position of the listening window; The parameters used to determine the start position of the listening window.

30. The network device according to any one of claims 25-28, characterized in that, For a terminal of any energy-saving level, the energy-saving level of the terminal is determined according to the capabilities and / or remaining battery power of the terminal.

31. The network device according to claim 30, wherein For a terminal of any energy-saving level, the stronger the capabilities and / or the more the remaining battery power of the terminal, the lower the energy-saving level of the terminal; the weaker the capabilities and / or the less the remaining battery power of the terminal, the higher the energy-saving level of the terminal.

32. The network device according to claim 30, wherein For a terminal of any energy-saving level, the stronger the capabilities and / or the more the remaining battery power of the terminal, the higher the energy-saving level of the terminal; the weaker the capabilities and / or the less the remaining battery power of the terminal, the lower the energy-saving level of the terminal.

33. A terminal, characterized in that, Comprising: A processor and a memory, where the memory is used to store a computer program, and the processor is used to call and run the computer program stored in the memory to execute the method according to any one of claims 1 to 8.

34. A network device, characterized in that, Comprising: A processor and a memory, where the memory is used to store a computer program, and the processor is used to call and run the computer program stored in the memory to execute the method according to any one of claims 9 to 16.

35. A chip, characterized in that, Comprising: A processor, which is used to call and run a computer program from a memory, so that a device installed with the chip executes the method according to any one of claims 1 to 8.

36. A chip, characterized in that, Comprising: A processor, which is used to call and run a computer program from a memory, so that a device installed with the chip executes the method according to any one of claims 9 to 16.

37. A computer-readable storage medium, characterized in that, For storing a computer program, where the computer program causes a computer to execute the method according to any one of claims 1 to 8.

38. A computer-readable storage medium, characterized in that, For storing a computer program, where the computer program causes a computer to execute the method according to any one of claims 9 to 16.

39. A computer program product, characterized in that, Comprising computer program instructions which cause a computer to execute the method according to any one of claims 1 to 8.

40. A computer program product, characterized in that, Comprising computer program instructions which cause a computer to execute the method according to any one of claims 9 to 16.

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