CN115918202A

CN115918202A - Wireless communication method, terminal and network equipment

Info

Publication number: CN115918202A
Application number: CN202080103160.2A
Authority: CN
Inventors: 赵振山
Original assignee: Guangdong Oppo Mobile Telecommunications Corp Ltd
Current assignee: Guangdong Oppo Mobile Telecommunications Corp Ltd
Priority date: 2020-10-13
Filing date: 2020-10-13
Publication date: 2023-04-04
Also published as: WO2022077215A1

Abstract

The embodiment of the application provides a wireless communication method, a terminal and network equipment, wherein the method comprises the following steps: a first terminal acquires transmission resources in a resource pool; the first terminal carries out side-line transmission on the transmission resource; the configuration parameters of the resource pool comprise: and/or information related to different energy saving levels. Therefore, the purpose of saving energy of the terminal can be achieved.

Description

Wireless communication method, terminal and network equipment

Technical Field

The embodiments of the present application relate to the field of communications, and in particular, to a wireless communication method, a terminal and a network device.

Background

Communication architectures such as Device to Device (D2D), vehicle to Vehicle (V2V), vehicle to other Device (V2X), etc. may implement communication between terminals based on Sidelink (SL) technology, which is different from a manner in which communication data is received or transmitted through a base station in a conventional cellular system. The direct communication mode between the terminals has higher spectrum efficiency and lower transmission delay.

In the sidelink research of a New Radio (NR) version (Release, R) 16, research is mainly performed for a vehicle-mounted terminal, and this case does not relate to an energy-saving terminal. However, in the problem of R17 sidelink enhancement, research needs to be performed on the handheld terminal, and the handheld terminal is limited by the battery capacity, that is, the handheld terminal needs to save energy, so how to realize energy saving of such a terminal is a technical problem to be solved in the present application.

Disclosure of Invention

The embodiment of the application provides a wireless communication method, a terminal and network equipment, so that the aim of saving energy of an energy-saving terminal is fulfilled.

In a first aspect, a wireless communication method is provided, including: the first terminal acquires transmission resources in the resource pool. The first terminal performs sidelink transmission on the transmission resource. The configuration parameters of the resource pool comprise: and/or information related to different energy saving levels.

In a second aspect, a wireless communication method is provided, including: and the network equipment sends the configuration parameters of the resource pool to the first terminal. The configuration parameters of the resource pool comprise: and/or information related to different energy saving levels.

In a third aspect, a terminal is provided, where the terminal is a first terminal, and includes: the system comprises a processing unit and a communication unit, wherein the processing unit is used for acquiring transmission resources in a resource pool; the communication unit is used for performing side transmission on the transmission resource; the configuration parameters of the resource pool comprise: and/or information related to different energy saving levels.

In a fourth aspect, a network device is provided, comprising: a communication unit, configured to send configuration parameters of a resource pool to a first terminal; the configuration parameters of the resource pool comprise: and/or information related to different energy saving levels.

In a fifth aspect, a terminal is provided that includes a processor and a memory. The memory is used for storing a computer program, and the processor is used for calling and running the computer program stored in the memory to execute the method in the first aspect or each implementation manner thereof.

In a sixth aspect, a network device is provided that includes a processor and a memory. The memory is used for storing a computer program, and the processor is used for calling and running the computer program stored in the memory, and executing the method of the second aspect or each implementation mode thereof.

In a seventh aspect, an apparatus is provided to implement the method in any one of the first to second aspects or implementations thereof.

Specifically, the apparatus includes: a processor configured to call and run the computer program from the memory, so that the device on which the apparatus is installed performs the method according to any one of the first aspect to the second aspect or the implementation manner thereof.

In an eighth aspect, a computer-readable storage medium is provided for storing a computer program, the computer program causing a computer to perform the method of any one of the first to second aspects or implementations thereof.

In a ninth aspect, there is provided a computer program product comprising computer program instructions to cause a computer to perform the method of any one of the first to second aspects or implementations thereof.

A tenth aspect provides a computer program which, when run on a computer, causes the computer to perform the method of any one of the first to second aspects or implementations thereof.

In the application, the configuration information of the resource pool carries the related information of the energy-saving terminal and/or the related information of different energy-saving levels. Therefore, the aim of saving energy of the terminal can be fulfilled.

Drawings

Fig. 1 is a schematic diagram of a network coverage situation provided in an embodiment of the present application;

fig. 2 is a schematic diagram of another network coverage situation provided in the embodiment of the present application;

fig. 3 is a schematic diagram of another network coverage situation provided in the embodiment of the present application;

fig. 4 is a schematic diagram of unicast transmission provided in an embodiment of the present application;

fig. 5 is a schematic diagram of a broadcast transmission according to an embodiment of the present application;

fig. 6 is a schematic diagram of another broadcast transmission provided in an embodiment of the present application;

fig. 7 is a schematic view of resource distribution according to an embodiment of the present application;

fig. 8 is a schematic view of another resource distribution provided in the embodiment of the present application;

fig. 9 is a schematic view of another resource distribution provided in an embodiment of the present application;

fig. 10 is a flowchart of a wireless communication method according to an embodiment of the present application;

fig. 11 is a schematic view of another resource distribution provided in the embodiment of the present application;

fig. 12 shows a schematic block diagram of a terminal 1200 according to an embodiment of the application;

fig. 13 shows a schematic block diagram of a network device 1300 according to an embodiment of the present application;

fig. 14 is a schematic structural diagram of a communication device 1400 provided in an embodiment of the present application;

FIG. 15 is a schematic structural view of an apparatus of an embodiment of the present application;

fig. 16 is a schematic block diagram of a communication system 1600 provided in an embodiment of the present application.

Detailed Description

Technical solutions in the embodiments of the present application will be described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are some embodiments of the present application, but not all embodiments. All other embodiments obtained by a person of ordinary skill in the art without making any creative effort for the embodiments in the present application belong to the protection scope of the present application.

Before the technical scheme of the application is introduced, the related concepts of the application are explained as follows:

1. network coverage in sidelink communications (i.e., communications implemented based on sidelink technology)

In the sidestream communication, according to the network coverage of the terminal performing the communication, the sidestream communication can be divided into the network coverage inside communication, the partial network coverage sidestream communication and the network coverage outside communication, as shown in fig. 1, fig. 2 and fig. 3.

As shown in fig. 1, in the network-covered inside communication, all terminals performing the sidestream communication are within the coverage area of the same network device, so that the terminals within the coverage area of the same network device can perform the sidestream communication based on the same sidestream configuration by receiving the configuration signaling of the network device.

As shown in fig. 2, in the case of the sidestream communication covered by the partial network, a part of terminals performing sidestream communication is located in the coverage area of the network device, and the part of terminals can receive the configuration signaling of the network device and perform sidestream communication according to the configuration of the network device. In this case, the terminal outside the network coverage determines the sideline configuration according to the pre-configuration information and information carried in a Physical Sideline Broadcast Channel (PSBCH) sent by the terminal within the network coverage, and performs the sideline communication.

As shown in fig. 3, for communication outside the network coverage, all terminals performing sidestream communication are located outside the network coverage, and all terminals determine sidestream configuration according to the preconfigured information to perform sidestream communication.

2. D2D

Device-to-device communication is a SL technology based on D2D, and has higher spectral efficiency and lower transmission delay, unlike the conventional cellular system in which communication data is received or transmitted through a network device. Two transmission modes are defined in the third Generation Partnership project (3 rd Generation Partnership project,3 gpp) in the car networking system using terminal-to-terminal direct communication: a first mode and a second mode.

In the first mode: the transmission resource of the terminal is distributed by the network equipment, and the terminal transmits data on the side link according to the resource distributed by the network equipment; the network device may allocate resources for single transmission to the terminal, or may allocate resources for semi-static transmission to the terminal. As shown in fig. 1, the terminal is located in the network coverage, and the network device allocates transmission resources for the terminal to be used for sidelink transmission.

In the second mode: and the terminal selects one resource from the resource pool to transmit data. As shown in fig. 3, the terminal is located outside the coverage area of the cell, and the terminal autonomously selects transmission resources from a pre-configured resource pool to perform sideline transmission; or as shown in fig. 1, the terminal autonomously selects a transmission resource from a resource pool configured by the network for sidelink transmission.

3. NR-V2X

In NR-V2X, autonomous driving needs to be supported, and therefore higher requirements are placed on data interaction between vehicles, such as higher throughput, lower latency, higher reliability, greater coverage, more flexible resource allocation, and the like.

In NR-V2X, unicast and multicast transmission modes are introduced. For unicast transmission, the receiving end has only one terminal, as shown in fig. 4, unicast transmission is performed between UE1 and UE 2; for multicast transmission, the receiving end is all terminals in a communication group, or all terminals in a certain transmission distance, as shown in fig. 5, UE1, UE2, UE3, and UE4 form a communication group, where UE1 sends data, and other UEs in the group are all receiving ends; for the broadcast transmission mode, the receiving end is any one of the terminals around the transmitting end, for example, as shown in fig. 6, UE1 is the transmitting end, and the other UEs around it, i.e., UE2-UE6, are all receiving ends.

4. Resource selection method based on interception in LTE-V2X

In LTE-V2X, full or partial listening is supported, where a terminal may listen to data transmitted by other terminals in all slots (or subframes) except for the slot in which the data is transmitted; and partial sensing (partial sensing) is to realize energy saving of the terminal, and the terminal only needs to sense a part of time slots or subframes and perform resource selection based on the result of the partial sensing.

Specifically, when the higher layer does not configure partial interception, that is, the resource selection is performed by adopting a full interception by default, the standard (3 gpp ts 36.213) defines the resource selection based on the full interception. Wherein, 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, terminal 1 will select window [ n + T1, n + T2] according to the listening result in the listening window]Selecting resources within milliseconds, wherein T1 is less than or equal to 4; t is a unit of _2min (prio _TX )≤T ₂ ≤100,T _2min (prio _TX ) Is a parameter related to priority, and the selection of T1 should be greater than the processing delay of the terminal, and 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 50ms, then 20 ≦ T2 ≦ 50, and the delay requirement of the service is 100ms, then 20 ≦ T2 ≦ 100, as shown in fig. 7, where T2=100. Terminal 1 detects Sidelink Control Information (SCI) of other terminals on resource 1, indicating that resource 2 in the selection window is reserved, and RSRP measured by terminal 1 on resource 1 exceeds the RSRP threshold, then terminal excludes resource 2 in the selection window, i.e. resource 2 is considered as an unavailable resource. Conversely, for the resource 4 in the selection window, if the terminal does not detect SCI on the corresponding resource 3 in the listening window, it indicates that the resource 4 is not reserved by other terminals, and therefore, the terminal 1 may reserve the resource 4, and if the pending transmission service of the terminal 1 is a periodic service, the terminal 1 may reserve the resources 5-7.

The method adopts a complete interception mode, and the process that the terminal selects resources in the selection window comprises the following steps:

the terminal takes all available resources in the selection window as a set A, and the terminal performs exclusion operation on the resources in the set A:

1. if the terminal does not have the listening result in some subframes in the listening window, the resources of the subframes on the corresponding subframes in the selection window are eliminated.

2. If a terminal detects a Physical Sidelink Control Channel (PSCCH) in a listening window, a Reference Signal Received Power (RSRP) of a PSCCH scheduled Physical Sidelink Shared Channel (PSCCH) is measured, and if the measured psch-RSRP is higher than a psch-RSRP threshold and a resource conflict exists between a reserved resource determined according to reservation information in the PSCCH and a resource to be used by the terminal in a selection window, the terminal excludes the resource in a set a. The selection of the PSSCH-RSRP threshold is determined by priority information carried in the detected PSCCH and the priority of data to be transmitted by the terminal.

3. If the number of the remaining resources in the set A is less than 20% of the total number of the resources, the terminal raises the threshold PSSCH-RSRP by 3dB, and repeats the steps 1-2 until the number of the remaining resources in the set A is more than 20% of the total number of the resources.

4. The terminal detects the Received power of side-stream reference signals (S-RSSI) of the remaining resources in the set a, sorts the resources according to energy level, and puts the 20% resource with the lowest energy (relative to the number of resources in the set a) into the set B.

5. And the terminal selects one resource from the set B with medium probability for data transmission.

When the high-level configuration is selected based on partial interception, the terminal based on partial interception selects at least Y resources in the selection window, judges whether the at least Y resources can be used as candidate resources according to the interception result, if so, the resources are put into a set B, and if the number of elements in the set B is more than or equal to 20 percent of the total number of resources, the set B is reported to the high level.

5. Resource selection method based on complete interception in NR-V2X

NR-V2X supports periodic services and non-periodic services, and in the current standard, a resource selection method based on complete interception is discussed, which is similar to the resource selection method based on complete interception in LTE-V2X, and the specific interception process and resource selection process can be referred to 3gpp ts38.214. In the LTE-V2X, when a terminal selects a transmission resource, data transmission may be performed on the resource, but there may be two terminals that select the same transmission resource, and at this time, a resource conflict may occur, and system performance is reduced.

1. Re-evaluation (re-evaluation) mechanism

After the terminal completes the resource selection, for the resource that has been selected but not indicated by the sending side row control information, it is still possible to be reserved by other terminals of the burst aperiodic service, resulting in resource collision. To solve this problem, a re-evaluation (re-evaluation) mechanism is proposed, i.e. the terminal continues to listen to the sidelink control information after completing the resource selection, and re-evaluates the selected but not indicated resources at least once again.

As shown in fig. 8, resources w, x, y, z, v are time-frequency resources that the terminal has selected, and resource x is located in time slot m. Resources y and z (resource x has been previously indicated by the sidelink control information in resource w) for which the terminal is about to transmit sidelink control information for the first time at resource x. The terminal being at least in time slot m-T ₃ And executing one-time resource interception, namely determining a selection window and an interception window, and removing resources in the selection window to obtain a candidate resource set. If the resource y or z is not in the candidate resource set, the terminal reselects a time-frequency resource in the resource y and z that is not in the candidate resource set, and may also reselect any resource that has been selected but is not indicated by the sending of the sidelink control information, for example, any few resources in the resources y, z, and v. T above ₃ Depending on the processing power of the terminal.

2. Pre-preemption (pre-preemption) mechanism

In NR-V2X, the conclusions about the pre-preemption (pre-preemption) mechanism are all described in terms of terminals that are preempted for resources. After the resource selection is completed, the terminal still continuously monitors the sideline control information, and if the time-frequency resources which have been selected and have been indicated by the sending sideline control information meet the following three conditions, the resource reselection is triggered:

(1) The resources reserved in the intercepted sidestream control information are overlapped with the resources selected and indicated by the terminal, including all overlapping and partial overlapping.

(2) The RSRP of the PSCCH corresponding to the side-row control information sensed by the terminal or the RSRP of the PSSCH scheduled by the PSCCH is larger than the SL RSRP threshold.

(3) The priority carried in the intercepted side-line control information is higher than the priority of the data to be sent by the terminal.

As shown in fig. 9, resources w, x, y, z, v are time-frequency resources that the terminal has selected, and resource x is located in time slot m. And transmitting the resources x and y indicated by the side row control information and already transmitted by the terminal before to the terminal in the time slot m. The terminal being at least in time slot m-T ₃ And performing resource interception once to determine a candidate resource set. If the resource x or y is not in the candidate resource set (meeting the above conditions 1 and 2), further judging whether the resource x or y is not in the candidate resource set (meeting the above condition 3) due to the indication of the sideline control information carrying high priority, if so, the terminal executes resource reselection and reselects the time-frequency resource satisfying the above conditions in x and y.

It should be understood that a terminal in the embodiments of the present application may also be referred to as a User Equipment (UE), an access terminal, a subscriber unit, a subscriber station, a mobile station, a remote terminal, a mobile device, a User terminal, a wireless communication device, a User agent, or a User Equipment, etc. The terminal may be a Station (ST) in a WLAN, and may be 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 device 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, and the like.

It should be understood that "indication" mentioned in the embodiments of the present application may be a direct indication, an indirect indication, or an indication of an association relationship. For example, a indicates B, which may indicate that a directly indicates B, e.g., B may be obtained by a; it may also mean that a indicates B indirectly, for example, a indicates C, and B may be obtained by C; it can also be shown that there is an association between a and B.

In the description of the embodiments of the present application, the term "correspond" may indicate that there is a direct correspondence or an indirect correspondence between the two, may also indicate that there is an association between the two, and may also indicate and be indicated, configure and configured, and so on.

By way of example and not limitation, in the embodiments of the present application, the terminal may also be a wearable device. Wearable equipment can also be called wearable intelligent equipment, is the general term of applying wearable technique to carry out intelligent design, develop the equipment that can dress to daily wearing, like glasses, gloves, wrist-watch, dress and shoes etc.. A wearable device is a portable device that is worn directly on the body or integrated into the clothing or accessories of the user. The wearable device is not only a hardware device, but also realizes powerful functions through software support, data interaction and cloud interaction. The generalized wearable smart device has full functions and large size, and can realize complete or partial functions without depending on a smart phone, for example: smart watches or smart glasses and the like, and only focus on a certain type of application functions, and need to be used in cooperation with other devices such as smart phones, such as various smart bracelets for physical sign monitoring, smart jewelry and the like.

The network device may be a device for communicating with a mobile device, and the network device may be an Access Point (AP) in a WLAN, a Base Station (BTS) in GSM or CDMA, a Base Station (NodeB, NB) in WCDMA, an evolved Node B (eNB, eNodeB) in LTE, a relay Station or an Access Point, or a network device or a Base Station (gNB) in a vehicle-mounted device, a wearable device and an NR network, or a network device in a PLMN network for future evolution.

It should be understood that the embodiments of the present application are not limited to D2D, V2V, V2X, and other communication frameworks, but may also be applied to any other terminal-to-terminal communication frameworks. Embodiments of the present application apply to unlicensed spectrum, which may also be referred to as unlicensed spectrum.

As described above, in the problem of R17 sidelink enhancement, it is necessary to research on a handheld terminal, and the handheld terminal is limited by the battery capacity, that is, the handheld terminal is a terminal that needs to save energy, so how to implement energy saving of such a terminal is a technical problem to be solved urgently in the present application, and in order to solve this technical problem, the inventive concept of the present application is: and carrying the relevant information of the energy-saving terminal and/or the relevant information of different energy-saving levels in the configuration information of the resource pool.

The technical scheme of the application is explained in detail as follows:

fig. 10 is a flowchart of a wireless communication method according to an embodiment of the present application, and as shown in fig. 10, the method includes the following steps:

step S1010: the first terminal obtains transmission resources in a resource pool, and configuration parameters of the resource pool comprise: and/or information related to different energy saving levels.

Step S1020: the first terminal performs sidelink transmission on the transmission resource.

Optionally, the present application may be applied to sideline communication within the network coverage as shown in fig. 1, or may be applied to sideline communication of partial network coverage as shown in fig. 2, or may be applied to sideline communication outside the network coverage as shown in fig. 3, which is not limited in this application.

Optionally, the present application may be applicable to the above two transmission modes defined by 3GPP, i.e. the first mode and the second mode, which is not limited in the present application. In the first mode, the transmission resource is allocated to the first terminal by the network device. In a second mode, the first terminal autonomously selects transmission resources in a pre-configured resource pool; alternatively, the first terminal may autonomously select a transmission resource from a resource pool configured by the network.

It should be understood that the energy saving terminal, such as a handheld terminal, is referred to in R17, and therefore in this application, the terminal will be divided into energy saving classes (power saving levels).

It should be understood that the power saving level is also described as a power saving state (power saving state), a power saving mode (power saving mode), a power saving state level, and the like in the present application, and the present application is not limited thereto.

Optionally, for any one terminal, the power saving level of the terminal is determined according to the capability and/or the remaining power of the terminal. For example: table 1 shows the correspondence between the energy saving level and the remaining power:

TABLE 1

Energy saving class	Residual capacity P
0	P≥80％
1	50％≤P<80％
2	20％≤P<50％
3	P≤20％

Optionally, for any terminal, the capability of the terminal may be measured by various software and hardware parameters of the terminal, and the application does not limit the software and hardware parameters herein.

It should be understood that, in the present application, the remaining capacity of the terminal is also described as the battery state of the terminal, which is not limited in the present application.

Optionally, the energy saving level of each terminal in this application may be predefined, specified by a protocol, or configured by a network, which is not limited in this application.

Optionally, the definition of the energy saving level in the present application is as follows:

in an implementation manner, two energy saving grades can be introduced in the application, wherein one energy saving grade corresponds to a terminal which does not need energy saving or a terminal which does not need energy saving, such as a vehicle-mounted terminal. The other energy saving class corresponds to a terminal which needs energy saving or a terminal with energy saving requirement, such as a handheld terminal. Alternatively, one of the above-described power saving classes may be defined as a power saving class 0, and another power saving class may be defined as a power saving class 1. Of course, one energy saving level may be defined as energy saving level 1, and another energy saving level may be defined as energy saving level 0, which is not limited in this application.

In another implementation manner, more energy saving levels may be introduced in the present application, for example, 4 energy saving levels are introduced, and energy saving level 0 corresponds to a terminal that does not need energy saving or a terminal that does not have an energy saving requirement, such as a vehicle-mounted terminal; the energy saving level 1, the energy saving level 2 and the energy saving level 3 correspond to terminals needing to consider energy saving, and different energy saving levels respectively correspond to different terminal capabilities and/or different residual electric quantities.

Optionally, the stronger the capability of the terminal and/or the more the remaining power, the lower the power saving level of the terminal. The weaker the capability and/or the less the remaining power of the terminal, the higher the power saving level of the terminal. Or, the stronger the capability of the terminal and/or the more the remaining power, the higher the power saving level of the terminal. The weaker the capability of the terminal and/or the less the remaining power, the lower the power saving level of the terminal. This is not limited by the present application.

Optionally, the information related to the energy saving terminal and/or the information related to different energy saving levels includes at least one of the following:

(1) The first indication information is used for indicating whether the resource pool supports an energy-saving terminal or not, or indicating the energy-saving level supported by the resource pool, or indicating that the resource pool supports a random resource selection mode, or indicating that the resource pool supports a resource selection mode based on partial interception.

(2) And second indication information, wherein the second indication information is used for indicating whether the energy-saving terminal supports the re-evaluation mechanism and/or the pre-preemption mechanism, or indicating whether different energy-saving levels support the re-evaluation mechanism and/or the pre-preemption mechanism respectively.

(3) And the different energy-saving grades respectively correspond to the transmission parameters.

(4) And the third indication information is used for indicating the resource selection modes corresponding to the energy-saving terminals or indicating the resource selection modes corresponding to different energy-saving grades respectively.

(5) And the minimum number of the sub-frames or the time slots included in the selection windows corresponding to different energy saving levels.

(6) And respectively corresponding interception parameters of different energy saving grades.

(7) And 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.

(8) And the RSRP threshold value or the RSRP offset value respectively corresponds to different energy saving levels, 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 the terminal without energy saving.

The following description will be made with respect to item (1):

it should be understood that, for terminals that need energy saving and terminals that do not need energy saving, or terminals of different energy saving levels, in order to achieve the energy saving purpose of the terminals, whether they support a re-evaluation mechanism and/or a pre-preemption mechanism, related transmission parameters, a corresponding resource selection manner, a minimum number of subframes or timeslots included in a selection window, a corresponding listening parameter, a corresponding first ratio, an RSRP threshold value or an RSRP offset value, etc. are configured differently, for example: for the terminal needing to consider energy saving, the resource can be selected based on random resource or based on partial interception result when the resource is selected, and for the terminal needing not considering energy saving, the resource is selected according to the complete interception result. Or, when the terminal requiring energy saving and the terminal not requiring energy saving use the same resource pool, the terminal not requiring energy saving needs to perform special processing on the terminal requiring energy saving, for example, transmission resources reserved by the energy saving terminal cannot be preempted. Therefore, in this case, for any terminal, it needs to know whether the resource pool corresponding to the terminal supports the energy-saving terminal, or indicate the energy-saving level supported by the resource pool, or indicate the resource pool to support the random resource selection mode, or indicate the resource pool to support the resource selection mode based on the partial interception. Based on this, in the present application, the configuration parameter of the resource pool may include the above-mentioned first indication information.

For example, the value of the first indication information is 1, or TRUE, or enabled, which indicates that the resource pool supports the energy-saving terminal, and the value of the first indication information is 0, or FALSE, or disabled, which indicates that the resource pool does not support the energy-saving terminal. Or, the value of the first indication information is 1, or TRUE, or enabled, which indicates that the resource pool does not support the energy-saving terminal, and the value of the first indication information is 0, or FALSE, or disabled, which indicates that the resource pool supports the energy-saving terminal.

For another example: the energy saving levels determined according to the predefined, protocol provisions or network configuration are 4 in total, namely, energy saving level 0, energy saving level 1, energy saving level 2 and energy saving level 3, and the first indication information may indicate at least one energy saving level supported by the resource pool, such as supporting energy saving levels 2 and 3.

Another example is: the first indication information indicates that a random resource selection mode or a resource selection mode based on partial interception is supported, and the two resource selection modes are generally resource selection modes adopted by the energy-saving terminal, so that the condition is equivalent to implicitly indicating that the resource pool supports the energy-saving terminal.

The following description is made with respect to item (2):

a re-evaluation and pre-preemption mechanism is introduced in NR-V2X, that is, after a terminal selects a transmission resource, the terminal still needs to monitor before using the resource so as to judge whether the selected transmission resource conflicts with other terminals, and if the conflict occurs, the resource needs to be re-selected. Therefore, during the re-evaluation and pre-preemption, the terminal needs to perform continuous channel sensing before transmission, which also consumes energy. For power saving terminals this procedure of continuous listening is not suitable. Therefore, for the terminal with the energy saving requirement, whether the re-evaluation mechanism and/or the pre-preemption mechanism is supported by the terminal in the energy saving state or whether the re-evaluation mechanism and/or the pre-preemption mechanism is supported by different energy saving levels respectively can be indicated in the configuration information of the resource pool through the second indication information.

For example, the value of the second indication information is 1, or TRUE, or enabled, which indicates that the energy-saving terminal supports a re-evaluation and/or pre-preemption mechanism; the second indication information value is 0, or FALSE, or disabled, which indicates that the energy-saving terminal does not support the re-evaluation and/or pre-preemption mechanism. Or, the second indication information value is 1, or TRUE, or enabled, indicating that the energy-saving terminal does not support the re-evaluation and/or pre-preemption mechanism; the second indication information value is 0, or FALSE, or disabled, which indicates that the energy-saving terminal supports a re-evaluation and/or pre-preemption mechanism.

For another example: the energy saving state grades of the terminal determined according to the predefinition, the protocol specification or the network configuration are 4 grades, namely an energy saving grade 0, an energy saving grade 1, an energy saving grade 2 and an energy saving grade 3, and the second indication information respectively indicates whether different energy saving grades support a re-evaluation and/or pre-preemption mechanism. For example, the second indication information is 4 bits, each bit corresponds to 1 energy saving class, and the value of each bit is 1 or 0, which indicates that the re-evaluation and/or pre-preemption mechanism is supported or not supported, respectively. For example, the bit sequence takes a value of 1111, which indicates that all terminals at four energy saving levels support the re-evaluation and/or pre-preemption mechanism, takes a value of 0000, which indicates that all terminals at four energy saving levels do not support the re-evaluation and/or pre-preemption mechanism, takes a value of 1100 which indicates that terminals at

energy saving levels

0 and 1 support the re-evaluation and/or pre-preemption mechanism, and terminals at energy saving levels 2 and 3 do not support the re-evaluation and/or pre-preemption mechanism.

The following is explained with respect to item (3):

optionally, the transmission parameters include at least one of: maximum transmit power, power control parameters, maximum number of transmissions, but is not limited thereto.

In order 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, two or more power saving classes are introduced in the present application, when two power saving classes are introduced, the correspondence between different power saving classes and the maximum transmission power is shown in table 2, and when four power saving classes are introduced, the correspondence between different power saving classes and the maximum transmission power is shown in table 3:

TABLE 2

Energy saving class	Maximum transmit power P _ ps _ max (dBm)
0	23
1	20

TABLE 3

Energy saving class	Maximum transmit power P _ ps _ max (dBm)
0	23
1	20
2	17
3	14

The correspondence relationship between the energy saving level and the maximum transmission power is not limited to the correspondence relationship shown in table 2 and table 3.

In the NR-V2X system, the terminal may perform power control according to the sidelink path loss or the downlink path loss, and specifically, the transmission power of the terminal is determined by the following formula (1):

P _PSSCH (i)＝min(P _CMAX ,P _MAX,CBR ,min(P _PSSCH,D (i),P _PSSCH,SL (i)))[dBm] (1)

the power based on the downlink path loss is determined by equation (2):

the power based on the downlink path loss is determined by equation (3):

P _CMAX indicating the configured maximum transmission power, P _MAX,CBR Represents a configured maximum transmission power based on a Channel occupancy (CBR),

represents the number of Physical Resource Blocks (PRBs) occupied by the PSSCH, P _O，D 、P _O，SL 、α _D And alpha _SL Are all power control parameters.

Different P can be configured for terminals in different energy-saving states _O，D 、P _O，SL 、α _D And alpha _SL At least one of the following is represented by P _O，SL And alpha _SL The description is given for the sake of example.

In NR-V2X, P _O，SL Is in the range of [ -16,15]An integer in between; alpha is alpha _SL The value ranges of (0, 0.4,0.5,0.6,0.7,0.8,0.9, 1) are set, therefore, the corresponding P can be configured for the terminals with different energy-saving levels _O，SL And alpha _SL . For example, when there are two power saving classes, P corresponding thereto _O，SL And alpha _SL When there are four energy saving levels, as shown in tables 4 and 5, respectively, it corresponds to P _O，SL And alpha _SL As shown in tables 6 and 7, respectively.

TABLE 4

Energy saving class	P	_O，SL
0	15
1	12

TABLE 5

Energy saving class	α	_SL
0	1
1	0.7

TABLE 6

Energy saving class	P	_O，SL
0	15
1	12
2	10
3	5

TABLE 7

Energy saving class	α	_SL
0	1
1	0.7
2	0.5
3	0

In NR-V2X, one sidestream data, i.e., the maximum number of transmissions transmitted through sidestream communication or sidestream link technology, is 32 to ensure transmission reliability. However, the more times the terminal sends data, the more power it consumes, so different maximum transmission times can be configured for different power saving levels, thereby achieving the purpose of saving power.

For example, the configuration information of the resource pool includes a MaxNumTransmission parameter, which indicates the maximum transmission number of data in one sideline, for example, when the number of the power saving classes is two, the corresponding relationship between the parameter and the power saving class is shown in table 8, and when the number of the power saving classes is four, the corresponding relationship between the parameter and the power saving class is shown in table 9:

TABLE 8

Energy saving class	MaxNumTransmission
0	32
1	16

TABLE 9

Energy saving class	MaxNumTransmission
0	32
1	16
2	8
3	4

The following is described with respect to item (4):

optionally, a resource selection mode based on complete interception may be adopted for a terminal that does not need to save energy, a random resource selection mode may be adopted for a terminal that needs to save energy, or a resource selection mode based on partial interception may be adopted. Therefore, the configuration parameters of the resource pool may include third indication information, where the third indication information is used to indicate a resource selection manner corresponding to the energy-saving terminal, or indicate resource selection manners corresponding to different energy-saving levels, respectively.

For example, the third indication information indicates that the energy-saving terminal adopts a random resource selection manner, or adopts resource selection based on partial interception.

For another example, the third indication information indicates that the terminal of power saving level 1 adopts a resource selection mode based on partial interception, the terminals of power saving levels 2 and 3 adopt a random resource selection mode, and the terminal of power saving level 0 adopts a resource selection mode based on complete interception.

The following is described with respect to item (5):

as described above, the terminal based on the partial sensing selects at least Y time slots (or subframes) in the selection window, and determines whether resources on at least Y time slots (or subframes) can be used as candidate resources according to the sensing result, where Y is the minimum number of subframes 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 slots (or subframes) within the selection window, and determines whether resources on the at least Y subframes are available according to the listening result within the listening window. Therein, a correspondence between the power saving level and the minimum number of subframes or slots (minnumcandedsf) determined in the selection window may be configured. For example: when there are two power saving levels, the correspondence relationship between the power saving level and the minimum number of subframes or slots (minnumcandedsf) determined in the selection window is shown in table 10, and when there are 4 power saving state levels, the correspondence relationship between the power saving level and the minimum number of subframes or slots (minnumcandedsf) determined in the selection window is shown in table 11:

watch 10

Class of energy saving	minNumCandidateSF
0	100
1	50

TABLE 11

Energy saving class	minNumCandidateSF
0	100
1	50
2	20
3	10

The following is provided for item (6):

optionally, the listening parameters include any one of: the parameter used for confirming the listening time slot or listening subframe in the listening window, the parameter used for confirming the listening duration in the listening window, the parameter used for confirming the ending position of the listening window, and the parameter used for confirming the starting position of the listening window.

When a terminal carries out partial interception, a subframe corresponding to n-k Pstep needs to be intercepted, wherein n represents the time when a resource is selected, pstep is a constant or a configuration parameter of a resource pool, k is determined by a resource pool configuration parameter gapcanididate sensing which is used for indicating which time slots or subframes need to be intercepted, in LTE-V2X, the parameter is a bit sequence with the length of 10, and k in the formula represents that the value of the kth bit of the parameter gapcanididate sensing is 1. In NR-V2X, the parameter gapCandidateSensing may be configured as a parameter related to the level of energy saving when energy saving terminals are supported in the resource pool. For example, the corresponding parameters gapcondendatesensing are configured for different energy saving levels, respectively.

For example, when the system supports two energy saving levels, the correspondence relationship between the configuration parameter gapCandidateSensing and the energy saving level is shown in table 12, and when the system supports four energy saving levels, the correspondence relationship between the configuration parameter gapCandidateSensing and the energy saving level is shown in table 13.

TABLE 12

Class of energy saving	gapCandidateSensing
0	1,1,1,1,1,1,1,1,1,1
1	1,1,1,1,1,0,0,0,0,0

Watch 13

Class of energy saving	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

If only the non-periodic service is supported in the resource pool, the terminal cannot know the arrival time of the service, and the non-periodic service terminal cannot reserve transmission resources for the transmission of the next data block and only reserves transmission resources for the retransmission of the current data block, so that the terminal cannot determine a candidate resource set based on the past interception result. Generally, a terminal will listen only when a service arrives, and the listening duration is W, and resource selection is performed according to the listening result within the duration W, as shown in fig. 11, the terminal needs to perform resource selection at time n, if resource selection is triggered when data arrives, the terminal determines that a listening window is [ n + t1, n + t2], and the terminal determines transmission resources within a selection window according to the listening result within the listening window.

Optionally, since the larger the listening duration is, the larger the power consumption of the terminal is, and the listening duration is determined by the parameter for determining the listening duration within the listening window, in the present application, different parameters for determining the listening duration within the listening window may be configured for different power saving levels.

Alternatively, as shown in fig. 11, generally t1 is determined according to the processing time of the terminal, so the listening duration depends on the end position of the listening window, as shown in t2 of fig. 11, and likewise, since the larger the listening duration, the larger the power consumption of the terminal, and the end position of the listening window is determined by the parameter for determining the end position of the listening window, in the present application, different parameters for determining the end position of the listening window may be configured for different power saving levels. Similarly, it is assumed that the listening window end position is determined, so the listening duration depends on the starting position of the listening window, and since the larger the listening duration is, the larger the power consumption of the terminal is, and the starting position of the listening window is determined by the parameter for determining the starting position of the listening window, in the present application, different parameters for determining the starting position of the listening window may be configured for different power saving levels.

The description is made with respect to item (7):

as described above, in LTE-V2X, based on the resource selection method of complete sensing, if the number of remaining resources in the set a is less than 20% of the total number of resources, the terminal raises the threshold of PSSCH-RSRP by 3dB, and repeats steps 1 to 2 until the number of remaining resources in the set a is greater than 20% of the total number of resources. In NR-V2X, which is a priority-related parameter, the range of values that can be taken is {20%,30%,50% }. For the energy-saving terminal, if the steps 1 to 2 are continuously executed for multiple times, the problem of overlarge power consumption is caused, so that the corresponding relation between different energy-saving levels and the first ratio can be configured.

For example: the system supports two energy saving levels, and the corresponding relation between different energy saving levels and the first ratio is shown in table 14. The system supports four energy saving levels, and the corresponding relation between different energy saving levels and the first ratio is shown in table 15.

TABLE 14

Class of energy saving	First ratio
0	0.2
1	0.1

Watch 15

Energy saving class	First ratio
0	0.2
1	0.1
2	0.05
3	0.02

Optionally, the higher the energy saving level value is, the more the terminal needs to save energy, 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 the RSRP threshold does not need to be increased to perform iterative processing.

The following is provided for item (8):

as described above, in LTE-V2X, if a terminal detects a PSCCH in a listening window, an RSRP of the PSCCH scheduled by the PSCCH is measured, and if the measured psch-RSRP is higher than a psch-RSRP threshold (i.e., an RSRP threshold value), and a transmission resource reserved by the terminal determined according to reservation information in the PSCCH conflicts with a resource to be used by the terminal in a selection window, the terminal excludes the resource in set a. The selection of the PSSCH-RSRP threshold is determined by priority information carried in the detected PSCCH and the priority of data to be transmitted by the terminal. In NR-V2X, a terminal detects a PSCCH within a listening window, may measure an RSRP of the PSCCH compared to a PSCCH-RSRP threshold, or measure an RSRP of a PSCCH scheduled by the PSCCH and compared to a psch-RSRP threshold.

In a possible implementation manner, in order to achieve the purpose of energy saving, different RSRP threshold values or different RSRP offset values delta _ RSRP may be configured for different energy saving classes, and in a listening process, a terminal determines a corresponding RSRP threshold value according to an energy saving class corresponding to the terminal. Optionally, the RSRP threshold value or RSRP offset value delta _ RSRP is related to priority. The new RSRP threshold determined according to this parameter is: RSRP _ PSstate = RSRP + delta _ RSRP; the RSRP indicates a default RSRP threshold, which is an RSRP threshold corresponding to a terminal that does not need energy saving (or a terminal with an energy saving level of 0); the configuration parameters of the resource pool comprise a default RSRP threshold value, the threshold value is used for a terminal which does not need energy saving to use in the monitoring process, for the energy saving terminal, an RSRP offset value can be configured, and the RSRP threshold value used by the energy saving terminal in the monitoring process can be determined according to the default RSRP threshold value and the RSRP offset value.

For example, two energy saving levels or more energy saving levels are introduced in the present application, when two energy saving levels are introduced, the corresponding relationship between different energy saving levels and an RSRP offset value is shown in table 16, when four energy saving levels are introduced, the corresponding relationship between different energy saving levels and an RSRP offset value is shown in table 17, the RSRP offset values of different energy saving levels corresponding to one priority level are only given in the table by way of example, and for different priority levels, the corresponding relationship between corresponding energy saving levels and RSRP offset values (or RSRP threshold values) may be configured.

TABLE 16

Class of energy saving	delta_RSRP(dB)
0	0
1	3

TABLE 17

Energy saving class	delta_RSRP(dB)
0	0
1	3
2	6
3	9

In yet another possible implementation manner, different RSRP threshold values or different RSRP offset values may be configured for different energy saving levels, and the RSRP threshold values or the RSRP offset values are used for determining the RSRP threshold values used by the terminal without energy saving for the terminals with different energy saving levels in the listening process. As described above, for the energy-saving terminal, in order to achieve the purpose of saving energy, the energy-saving terminal needs to be prevented from performing re-evaluation and pre-preemption processing as much as possible, that is, when the energy-saving terminal selects or reserves transmission resources, the transmission resources should be prevented from being preempted by other terminals as much as possible, so that the energy-saving terminal can be prevented from performing re-evaluation and pre-preemption judgment, and selecting resources again. Therefore, the terminal which does not need to save energy should avoid preempting the resource of the energy-saving terminal as much as possible, and at this time, for the RSRP threshold value or the RSRP offset value of the terminal which does not need to save energy, the corresponding RSRP threshold value or the RSRP offset value may be configured for the energy-saving terminal or different energy-saving classes. When the terminal without energy saving is in the monitoring process, the corresponding RSRP threshold can be determined according to the energy saving level of the sending end corresponding to the PSCCH detected in the monitoring window. Optionally, the RSRP threshold value or RSRP offset value is associated with a priority level. The RSRP offset value is used to determine an RSRP threshold used for the energy-saving terminal during the listening process. The new RSRP threshold determined according to this parameter is: RSRP _ PSstate = RSRP + delta _ RSRP; the RSRP indicates a default RSRP threshold value, which is an RSRP threshold value corresponding to a terminal (or a terminal with an energy-saving level of 0) which does not need energy saving in a monitoring process; the resource pool configuration parameters comprise a default RSRP threshold value, the energy-saving terminal can be configured with an RSRP deviation value, and the RSRP threshold value used by the energy-saving terminal in the interception process can be determined according to the default RSRP threshold value and the RSRP threshold value.

For the RSRP thresholds configured for different energy saving levels, when a terminal without energy saving detects a PSCCH during an interception process and knows an energy saving level corresponding to a transmitting end of the PSCCH (for example, the energy saving level corresponding to the terminal is obtained through indication information in an SCI), the terminal without energy saving determines the RSRP threshold corresponding to the terminal without energy saving according to the energy saving level, compares the RSRP measurement value for the PSCCH transmitting end with the RSRP threshold, and if the RSRP measurement value is higher than the RSRP threshold, excludes resources reserved by the terminal in a selection window.

For example, two energy saving levels or more energy saving levels are introduced in the present 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, and 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 shows the RSRP threshold values of different energy saving levels corresponding to one priority level by way of example, and for different priority levels, the corresponding relationship between the corresponding energy saving levels and the RSRP threshold values (or RSRP offset values) may be configured.

Watch 18

Energy saving class	RSRP threshold value (dBm)
0	-60
1	-70

Watch 19

Energy saving class	RSRP threshold value (dBm)
0	-60
1	-70
2	-80
3	-90

It should be noted that, in the above tables 2 to 19, the values on the right side of the tables may be different, and certainly may be the same, and the present application does not limit this.

In summary, in the present application, the configuration information of the resource pool carries the related information of the energy saving terminal and/or the related information of different energy saving levels. Therefore, the purpose of saving energy of the terminal can be achieved. For example: when the configuration information of the resource pool carries the first indication information, the terminal which does not need to save energy needs to perform special processing on the energy-saving terminal, if the transmission resource reserved by the energy-saving terminal cannot be preempted, the purpose of saving energy is achieved. When the configuration information of the resource pool carries the second indication information, some energy-saving terminals can not support a re-evaluation and/or pre-preemption mechanism, so that the purpose of energy saving is achieved. For the terminal with higher energy-saving grade, the maximum sending power, the power control parameter and the maximum transmission frequency are smaller, so that the aim of saving energy can be fulfilled. When the configuration information of the resource pool carries the third indication information to indicate that the energy-saving terminal adopts a random resource selection mode or a resource selection mode based on partial interception, the purpose of energy saving can be achieved. When the energy-saving level is higher, the minimum number of the sub-frames or the 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 interception time length is shorter, and the aim of saving energy can be achieved. When the energy-saving grade is higher, the corresponding first ratio is smaller, and the aim of saving energy can be achieved. When the energy-saving level is higher, the higher the RSRP threshold value used by the energy-saving terminal in the interception process is, or the lower the RSRP threshold value used by the energy-saving terminal in the interception process is, the terminal without energy saving can achieve the purpose of energy saving.

Method embodiments of the present application are described in detail above with reference to fig. 10, and apparatus embodiments of the present application are described in detail below with reference to fig. 12-16, it being understood that apparatus embodiments correspond to method embodiments, and that similar descriptions may refer to method embodiments.

Fig. 12 shows a schematic block diagram of a terminal 1200 according to an embodiment of the application. As shown in fig. 12, the terminal 1200 is a first terminal, and the terminal 1200 includes:

a processing unit 1210 configured to obtain transmission resources in a resource pool.

A communication unit 1220, configured to perform side-to-side transmission on the transmission resource.

The configuration parameters of the resource pool comprise: and/or information related to different energy saving levels.

the first indication information is used for indicating whether the resource pool supports the energy-saving terminal or indicating the energy-saving level supported by the resource pool.

And second indication information, wherein the second indication information is used for indicating whether the energy-saving terminal supports the re-evaluation mechanism and/or the pre-preemption mechanism, or indicating whether different energy-saving levels support the re-evaluation mechanism and/or the pre-preemption mechanism respectively.

And the different energy-saving grades respectively correspond to the transmission parameters.

And the third indication information is used for indicating the resource selection mode corresponding to the energy-saving terminal or indicating the resource selection modes respectively corresponding to different energy-saving grades.

And the minimum number of the sub-frames or the time slots included in the selection windows corresponding to different energy saving levels.

And different energy-saving levels respectively correspond to the interception parameters.

And 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.

And the RSRP threshold value or the RSRP offset value respectively corresponds to different energy saving levels, 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 the terminal without energy saving.

Optionally, the transmission parameters include at least one of: maximum transmit power, power control parameters, maximum number of transmissions.

Optionally, the resource selection mode corresponding to the energy-saving terminal is a random resource selection mode or a resource selection mode based on partial interception.

Optionally, the listening parameters include any one of:

parameters for determining listening slots or listening subframes within a listening window.

A parameter for determining a listening duration within a listening window.

Parameters for determining the end position of the listening window.

And the parameters are used for determining the starting position of the listening window.

Optionally, for a terminal of any one of the energy saving levels, the energy saving level of the terminal is determined according to the capability and/or the remaining power of the terminal.

Optionally, for any terminal with power saving level, the stronger the capability of the terminal and/or the more the remaining power, the lower the power saving level of the terminal. The weaker the capability and/or the less the remaining power of the terminal, the higher the power saving level of the terminal.

Optionally, for a terminal of any power saving level, the stronger the capability of the terminal and/or the more the remaining power, the higher the power saving level of the terminal. The weaker the capability of the terminal and/or the less the remaining power, the lower the power saving level of the terminal.

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

It should be understood that the terminal 1200 according to the embodiment of the present application may correspond to the first terminal in the embodiment of the method of the present application, and the above and other operations and/or functions of each unit in the terminal 1200 are respectively for implementing the corresponding flow of the first terminal in the method shown in fig. 10, and are not described herein again for brevity.

Fig. 13 shows a schematic block diagram of a network device 1300 according to an embodiment of the present application. As shown in fig. 13, the network device 1300 includes: a communication unit 1310 configured to send configuration parameters of a resource pool to a first terminal. The configuration parameters of the resource pool comprise: and/or information related to different energy saving levels.

And respectively corresponding transmission parameters of different energy-saving grades.

And the minimum number of the sub-frames or the time slots in the selection windows corresponding to different energy saving levels.

And respectively corresponding interception parameters of different energy saving grades.

Optionally, the listening parameters include any one of:

A parameter for determining a listening duration within a listening window.

Parameters for determining the end position of the listening window.

Optionally, for any terminal with any power saving level, the power saving level of the terminal is determined according to the capability and/or the remaining power of the terminal.

Optionally, for any terminal with power saving level, the stronger the capability of the terminal and/or the more the remaining power, the lower the power saving level of the terminal. The weaker the capability of the terminal and/or the less the remaining power, the higher the power saving level of the terminal.

Optionally, for a terminal of any one energy saving level, the stronger the capability of the terminal and/or the more the remaining power, the higher the energy saving level of the terminal. The weaker the capability of the terminal and/or the less the remaining power, the lower the power saving level of the terminal.

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

It should be understood that the network device 1300 according to the embodiment of the present application may correspond to a network device in the embodiment of the method 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 performed by the network device in the embodiment of the method of the present application, and are not described herein again for brevity.

Fig. 14 is a schematic structural diagram of a communication device 1400 according to an embodiment of the present application. The communication device 1400 shown in fig. 14 includes a processor 1410, and the processor 1410 can call and run a computer program from a memory to implement the method in the embodiment of the present application.

Optionally, as shown in fig. 14, the communication device 1400 may further include a memory 1420. From the memory 1420, the processor 1410 can call and run a computer program to implement the method in the embodiment of the present application.

The memory 1420 may be a separate device from the processor 1410, or may be integrated into the processor 1410.

Optionally, as shown in fig. 14, the communication device 1400 may further include a transceiver 1430, and the processor 1410 may control the transceiver 1430 to communicate with other devices, and in particular, may transmit information or data to other devices or receive information or data transmitted by other devices.

The transceiver 1430 may include a transmitter and a receiver, among others. The transceiver 1430 may further include antennas, and the number of antennas may be one or more.

Optionally, the communication device 1400 may specifically be a network device in the embodiment of the present application, and the communication device 1400 may implement a corresponding procedure implemented by the network device in each method in the embodiment of the present application, and for brevity, details are not described here again.

Optionally, the communication device 1400 may specifically be a terminal in the embodiment of the present application, and the communication device 1400 may implement a corresponding process implemented by the terminal in each method in the embodiment of the present application, which is not described herein again for brevity.

Fig. 15 is a schematic configuration diagram of an apparatus according to an embodiment of the present application. The apparatus 1500 shown in fig. 15 includes a processor 1510, and the processor 1510 can call and run a computer program from a memory to implement the method in the embodiment of the present application.

Optionally, as shown in fig. 15, the apparatus 1500 may further comprise a memory 1520. From the memory 1520, the processor 1510 can call and run a computer program to implement the method in the embodiment of the present application.

The memory 1520 may be a separate device from the processor 1510 or may be integrated into the processor 1510.

Optionally, the apparatus 1500 may also include an input interface 1530. The processor 1510 can control the input interface 1530 to communicate with other devices or chips, and in particular, can obtain information or data transmitted by other devices or chips.

Optionally, the apparatus 1500 may also include an output interface 1540. The processor 1510 may control the output interface 1540 to communicate with other devices or chips, and in particular, may output information or data to the other devices or chips.

Optionally, the apparatus may be applied to the network device in the embodiment of the present application, and the apparatus may implement the corresponding process implemented by the network device in each method in the embodiment of the present application, and for brevity, details are not described here again.

Optionally, the apparatus may be applied to the terminal in the embodiment of the present application, and the apparatus may implement the corresponding process implemented by the terminal in each method in the embodiment of the present application, and for brevity, details are not described here again.

Optionally, the apparatus mentioned in this embodiment of the present application may also be a chip. For example, it may be a system-on-chip, a system-on-chip or a system-on-chip, etc.

Fig. 16 is a schematic block diagram of a communication system 1600 provided in an embodiment of the present application. As shown in fig. 16, the communication system 1600 includes a terminal 1610 and a network device 1620.

The terminal 1610 may be configured to implement corresponding functions implemented by the terminal in the foregoing method, and the network device 1620 may be configured to implement corresponding functions implemented by the network device or the base station in the foregoing method, which are not described herein again for brevity.

It should be understood that the processor of the embodiments of the present application may be an integrated circuit chip having signal processing capabilities. In implementation, the steps of the above method embodiments may be performed by integrated logic circuits of hardware in a processor or instructions in the form of software. The Processor may be a general purpose Processor, a Digital Signal Processor (DSP), an Application Specific Integrated Circuit (ASIC), an off the shelf Programmable Gate Array (FPGA) or other Programmable logic device, discrete Gate or transistor logic, discrete hardware components. The various methods, steps, and logic blocks disclosed in the embodiments of the present application may be implemented or performed. A general purpose processor may be a microprocessor or the processor may be any conventional processor or the like. The steps of the method disclosed in connection with the embodiments of the present application may be directly implemented by a hardware decoding processor, or implemented by a combination of hardware and software modules in the decoding processor. The software modules may be located in ram, flash, rom, prom, or eprom, registers, etc. as is well known in the art. The storage medium is located in a memory, and a processor reads information in the memory and completes the steps of the method in combination with hardware of the processor.

It will be appreciated that the memory in the embodiments of the subject application can be either volatile memory or nonvolatile memory, or can include both volatile and nonvolatile memory. The non-volatile Memory may be a Read-Only Memory (ROM), a Programmable ROM (PROM), an Erasable PROM (EPROM), an Electrically Erasable PROM (EEPROM), or a flash Memory. Volatile Memory can be Random Access Memory (RAM), which acts as external cache Memory. By way of example, and 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 SDRAM (ESDRAM), synchronous Link DRAM (SLDRAM), and Direct Rambus RAM (DR RAM). It should be noted that the memory of the systems and methods described herein is intended to comprise, without being limited to, these and any other suitable types of memory.

It should be understood that the above memories are exemplary but not limiting illustrations, for example, the memories in the embodiments of the present application may also be Static Random Access Memory (SRAM), dynamic random access memory (dynamic RAM, DRAM), synchronous Dynamic Random Access Memory (SDRAM), double data rate SDRAM (DDR SDRAM), enhanced SDRAM (enhanced SDRAM, ESDRAM), synchronous Link DRAM (SLDRAM), direct Rambus RAM (DR RAM), and the like. That is, the memory in the embodiments of the present application is intended to comprise, without being limited to, these and any other suitable types of memory.

An embodiment of the present application further provides a computer-readable storage medium for storing a computer program.

Optionally, the computer-readable storage medium may be applied to the network device or the base station in the embodiment of the present application, and the computer program enables the computer to execute the corresponding process implemented by the network device or the base station in each method in the embodiment of the present application, which is not described herein again for brevity.

Optionally, the computer-readable storage medium may be applied to the mobile terminal/terminal in the embodiment of the present application, and the computer program enables the computer to execute the corresponding process implemented by the mobile terminal/terminal in each method in the embodiment of the present application, which is not described herein again for brevity.

Embodiments of the present application also provide a computer program product comprising computer program instructions.

Optionally, the computer program product may be applied to the network device or the base station in the embodiment of the present application, and the computer program instructions enable the computer to execute corresponding processes implemented by the network device or the base station in the methods in the embodiments of the present application, which are not described herein again for brevity.

Optionally, the computer program product may be applied to the mobile terminal/terminal in the embodiment of the present application, and the computer program instructions enable the computer to execute the corresponding processes implemented by the mobile terminal/terminal in the methods in the embodiment of the present application, which are not described herein again for brevity.

The embodiment of the application also provides a computer program.

Optionally, the computer program may be applied to the network device or the base station in the embodiment of the present application, and when the computer program runs on a computer, the computer is enabled to execute a corresponding process implemented by the network device or the base station in each method in the embodiment of the present application, which is not described herein again for brevity.

Optionally, the computer program may be applied to the mobile terminal/terminal in the embodiment of the present application, and when the computer program runs on a computer, the computer is enabled to execute a corresponding process implemented by the mobile terminal/terminal in each method in the embodiment of the present application, which is not described herein again for brevity.

Those of ordinary skill in the art will appreciate that the various illustrative elements and algorithm steps described in connection with the embodiments disclosed herein may be implemented as electronic hardware, or combinations of computer software and electronic hardware. Whether such functionality is implemented as hardware or software depends upon the particular application and design constraints imposed on the implementation. Skilled artisans may implement the described functionality in varying ways for each particular application, but such implementation decisions should not be interpreted as causing a departure from the scope of the present application.

It can be clearly understood by those skilled in the art that, for convenience and simplicity of description, the specific working processes of the above-described systems, apparatuses and units may refer to the corresponding processes in the foregoing method embodiments, and are not described herein again.

In the several embodiments provided in the present application, it should be understood that the disclosed system, apparatus and method may be implemented in other ways. For example, the above-described apparatus embodiments are merely illustrative, and for example, the division of the units is only one logical division, and other divisions may be realized in practice, for example, a plurality of units or components may be combined or integrated into another system, or some features may be omitted, or not executed. In addition, the shown or discussed mutual coupling or direct coupling or communication connection may be an indirect coupling or communication connection through some interfaces, devices or units, and may be in an electrical, mechanical or other form.

The units described as separate parts may or may not be physically separate, and parts displayed as units may or may not be physical units, may be located in one place, or may be distributed on a plurality of network units. Some or all of the units can be selected according to actual needs to achieve the purpose of the solution of the embodiment.

In addition, functional units in the embodiments of the present application may be integrated into one processing unit, or each unit may exist alone physically, or two or more units are integrated into one unit.

The functions, if implemented in the form of software functional units and sold or used as a stand-alone product, may be stored in a computer readable storage medium. With regard to such understanding, the technical solutions of the present application may be essentially implemented or contributed to by the prior art, or may be implemented in a software product stored in a storage medium and including instructions for causing a computer device (which may be a personal computer, a server, or a network device) to perform all or part of the steps of the method according to the embodiments of the present application. And the aforementioned storage medium includes: various media capable of storing program codes, such as a usb disk, a removable hard disk, a Read-Only Memory (ROM), a Random Access Memory (RAM), a magnetic disk, or an optical disk.

The above description is only for the specific embodiments of the present application, but the scope of the present application is not limited thereto, and any person skilled in the art can easily conceive of the changes or substitutions within the technical scope of the present application, and shall be covered by the scope of the present application. Therefore, the protection scope of the present application shall be subject to the protection scope of the claims.

Claims

A method of wireless communication, comprising:

a first terminal acquires transmission resources in a resource pool;

the first terminal performs side transmission on the transmission resource;

wherein the configuration parameters of the resource pool include: information related to the power saving terminal and/or information related to the power saving class.
Method according to claim 1, characterized in that the information related to the energy saving terminal and/or the information related to the energy saving class comprises 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 indicate an energy-saving level supported by the resource pool;

the second indication information is used for indicating whether the energy-saving terminal supports a re-evaluation mechanism and/or a pre-preemption mechanism or indicating whether different energy-saving grades support the re-evaluation mechanism and/or the pre-preemption mechanism respectively;

respectively corresponding transmission parameters of different energy-saving grades;

third indication information, wherein the third indication information is used for indicating a resource selection mode corresponding to the energy-saving terminal or indicating resource selection modes corresponding to different energy-saving grades respectively;

the minimum number of sub-frames or time slots included in the selection windows corresponding to different energy-saving levels;

respectively corresponding interception parameters of different energy-saving levels;

the first ratios respectively corresponding to different energy-saving levels are threshold values 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 respectively corresponding to different energy saving levels are offset values relative to a default RSRP threshold value, and the default RSRP threshold value is the RSRP threshold value corresponding to a terminal without energy saving.
The method of claim 2, wherein the transmission parameters comprise at least one of: maximum transmit power, power control parameters, maximum number of transmissions.
The method according to claim 2 or 3, wherein the resource selection is a random resource selection or a resource selection based on partial interception.
The method according to any of claims 2-4, wherein the listening parameters comprise any of:

parameters for determining listening slots or listening subframes within a listening window;

a parameter for determining a listening duration within a listening window;

parameters used for determining the end position of the listening window;

and the parameters are used for determining the starting position of the listening window.
The method according to any of claims 1-5, characterized in that for any power saving class of terminals, the power saving class of the terminal is determined according to the capability and/or remaining power of the terminal.
The method according to claim 6, wherein for any terminal with energy saving level, the stronger the terminal's capability and/or the more the remaining power, the lower the terminal's energy saving level; the weaker the capability and/or the less the remaining power of the terminal, the higher the energy saving level of the terminal.
The method according to claim 6, wherein for any terminal with energy saving level, the stronger the capability and/or the more the remaining power of the terminal, the higher the energy saving level of the terminal; the weaker the capability and/or the less the remaining power of the terminal, the lower the energy saving level of the terminal.
A method of wireless communication, comprising:

the network equipment sends the configuration parameters of the resource pool to the first terminal;

wherein the configuration parameters of the resource pool include: and/or information related to different energy saving levels.
The method according to claim 9, wherein the information related to the energy-saving terminal and/or the information related to different energy-saving levels comprises 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 indicate an energy-saving level supported by the resource pool;

the second indication information is used for indicating whether the energy-saving terminal supports a re-evaluation mechanism and/or a pre-preemption mechanism or indicating whether different energy-saving grades support the re-evaluation mechanism and/or the pre-preemption mechanism respectively;

transmission parameters corresponding to different energy-saving grades respectively;

third indication information, wherein the third indication information is used for indicating a resource selection mode corresponding to the energy-saving terminal or indicating resource selection modes corresponding to different energy-saving grades respectively;

the minimum number of sub-frames or time slots included in the selection windows corresponding to different energy-saving levels;

respectively corresponding interception parameters of different energy-saving levels;

the first ratios respectively corresponding to different energy-saving levels are threshold values 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 deviation values respectively corresponding to different energy saving levels are respectively corresponding to different energy saving levels, the RSRP deviation values are deviation values relative to default RSRP threshold values, and the default RSRP threshold values are the RSRP threshold values corresponding to the terminals which do not need energy saving.
The method of claim 10, wherein the transmission parameters comprise at least one of: maximum transmit power, power control parameters, maximum number of transmissions.
The method according to claim 10 or 11, wherein the resource selection manner corresponding to the energy-saving terminal is a random resource selection manner or a resource selection manner based on partial interception.
The method according to any of claims 10-12, wherein the listening parameters comprise any of:

parameters for determining listening slots or listening subframes within a listening window;

a parameter for determining a listening duration within a listening window;

parameters for determining the listening window end position;

and the parameters are used for determining the starting position of the listening window.
The method according to any of claims 9-13, characterized in that for any power saving class of terminals, the power saving class of the terminal is determined according to the capability and/or remaining power of the terminal.
The method according to claim 14, wherein for any terminal with power saving level, the higher the capability and/or the more the remaining power of the terminal, the lower the power saving level of the terminal; the weaker the capability of the terminal and/or the less the remaining power, the higher the energy saving level of the terminal.
The method according to claim 14, wherein for any terminal with power saving level, the higher the terminal's capability and/or the more the remaining power, the higher the terminal's power saving level; the weaker the capability and/or the less the remaining power of the terminal, the lower the energy saving level of the terminal.
A terminal, the terminal being a first terminal, comprising:

a processing unit, configured to obtain a transmission resource in a resource pool;

a communication unit, configured to perform side transmission on the transmission resource;

wherein the configuration parameters of the resource pool include: and/or information related to different energy saving levels.
The terminal according to claim 17, wherein the information related to the energy-saving terminal and/or the information related to different energy-saving levels comprises 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 indicate an energy-saving level supported by the resource pool;

the second indication information is used for indicating whether the energy-saving terminal supports a re-evaluation mechanism and/or a pre-preemption mechanism or indicating whether different energy-saving grades support the re-evaluation mechanism and/or the pre-preemption mechanism respectively;

transmission parameters corresponding to different energy-saving grades respectively;

third indication information, wherein the third indication information is used for indicating a resource selection mode corresponding to the energy-saving terminal or indicating resource selection modes corresponding to different energy-saving grades respectively;

the minimum number of sub-frames or time slots included in the selection windows corresponding to different energy-saving levels;

respectively corresponding interception parameters of different energy-saving levels;

the first ratios respectively corresponding to different energy-saving levels are threshold values 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 respectively corresponding to different energy saving levels are offset values relative to a default RSRP threshold value, and the default RSRP threshold value is the RSRP threshold value corresponding to a terminal without energy saving.
The terminal of claim 18, wherein the transmission parameters comprise at least one of: maximum transmit power, power control parameters, maximum number of transmissions.
The terminal according to claim 18 or 19, wherein the resource selection manner corresponding to the energy-saving terminal is a random resource selection manner or a resource selection manner based on partial interception.
The terminal according to any of claims 18-20, characterized in that the listening parameters comprise any of the following:

parameters for determining listening slots or listening subframes within a listening window;

parameters for determining listening duration within a listening window;

parameters for determining the listening window end position;

and the parameters are used for determining the starting position of the listening window.
A terminal according to any of claims 17-21, characterized in that for any power saving class of terminal, the power saving class of the terminal is determined according to the capability and/or remaining power of the terminal.
The terminal according to claim 22, wherein for any terminal with power saving level, the higher the capability and/or the more the remaining power of the terminal, the lower the power saving level of the terminal; the weaker the capability of the terminal and/or the less the remaining power, the higher the energy saving level of the terminal.
The terminal according to claim 22, wherein for any terminal with energy saving level, the higher the terminal's capability and/or the more the remaining power, the higher the terminal's energy saving level; the weaker the capability and/or the less the remaining power of the terminal, the lower the energy saving level of the terminal.
A network device, comprising:

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: and/or information related to different energy saving levels.
The network device according to claim 25, wherein the information related to the energy-saving terminal and/or the information related to different energy-saving levels comprises 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 indicate an energy-saving level supported by the resource pool;

the second indication information is used for indicating whether the energy-saving terminal supports a re-evaluation mechanism and/or a pre-preemption mechanism or indicating whether different energy-saving levels support the re-evaluation mechanism and/or the pre-preemption mechanism respectively;

transmission parameters corresponding to different energy-saving grades respectively;

the third indication information is used for indicating the resource selection modes corresponding to the energy-saving terminals or indicating the resource selection modes corresponding to different energy-saving grades respectively;

the minimum number of sub-frames or time slots included in the selection windows corresponding to different energy-saving levels;

respectively corresponding interception parameters of different energy-saving levels;

the first ratios respectively corresponding to different energy-saving levels are threshold values 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 respectively corresponding to different energy saving levels are offset values relative to a default RSRP threshold value, and the default RSRP threshold value is the RSRP threshold value corresponding to a terminal without energy saving.
The network device of claim 26, wherein the transmission parameters comprise at least one of: maximum transmit power, power control parameters, maximum number of transmissions.
The network device according to claim 26 or 27, wherein the resource selection manner corresponding to the energy-saving terminal is a random resource selection manner or a resource selection manner based on partial interception.
Network device according to any of claims 26-28, wherein said listening parameters comprise any of:

parameters for determining listening slots or listening subframes within a listening window;

a parameter for determining a listening duration within a listening window;

parameters used for determining the end position of the listening window;

and the parameters are used for determining the starting position of the listening window.
Network device according to any of claims 25-29, wherein for any terminal of a power saving class, the power saving class of the terminal is determined according to the capability and/or remaining power of the terminal.
The network device according to claim 30, wherein for any terminal with power saving level, the higher the capability and/or the more the remaining power of the terminal, the lower the power saving level of the terminal; the weaker the capability and/or the less the remaining power of the terminal, the higher the energy saving level of the terminal.
The network device according to claim 30, wherein for any terminal with power saving level, the higher the terminal's capability and/or the more the remaining power, the higher the terminal's power saving level; the weaker the capability and/or the less the remaining power of the terminal, the lower the energy saving level of the terminal.
A terminal, comprising: a processor and a memory for storing a computer program, the processor being configured to invoke and execute the computer program stored in the memory to perform the method of any of claims 1 to 8.
A network device, comprising: a processor and a memory for storing a computer program, the processor being configured to invoke and execute the computer program stored in the memory to perform the method of any of claims 9 to 16.
A chip, comprising: a processor for calling and running a computer program from a memory so that a device on which the chip is installed performs the method of any one of claims 1 to 8.
A chip, comprising: a processor for calling and running a computer program from a memory so that a device on which the chip is installed performs the method of any one of claims 9 to 16.
A computer-readable storage medium for storing a computer program which causes a computer to perform the method of any one of claims 1 to 8.
A computer-readable storage medium for storing a computer program which causes a computer to perform the method of any one of claims 9 to 16.
A computer program product comprising computer program instructions for causing a computer to perform the method of any one of claims 1 to 8.
A computer program product comprising computer program instructions to cause a computer to perform the method of any one of claims 9 to 16.
A computer program, characterized in that the computer program causes a computer to perform the method according to any of claims 1 to 8.
A computer program, characterized in that the computer program causes a computer to perform the method according to any of claims 9 to 16.