CN118104344A

CN118104344A - Communication method, device, apparatus, chip, storage medium, product, and program

Info

Publication number: CN118104344A
Application number: CN202180103352.8A
Authority: CN
Inventors: 马腾; 丁伊
Original assignee: Guangdong Oppo Mobile Telecommunications Corp Ltd
Current assignee: Guangdong Oppo Mobile Telecommunications Corp Ltd
Priority date: 2021-12-23
Filing date: 2021-12-23
Publication date: 2024-05-28
Also published as: WO2023115488A1

Abstract

The embodiment of the application provides a communication method, a device, equipment, a chip, a storage medium, a product and a program, wherein the method comprises the following steps: the terminal equipment determines first total transmission power of M carriers; wherein, M is an integer greater than or equal to 2, and the side information on any one carrier and the side information on at least one carrier at least partially overlap in the time domain; under the condition that the first total transmission power is larger than a first threshold value, the terminal equipment reselects resources of sidestream information on a first carrier; the first carrier is included in the M carriers.

Description

Communication method, device, apparatus, chip, storage medium, product, and program

Technical Field

The embodiment of the application relates to the technical field of mobile communication, in particular to a communication method, a device, equipment, a chip, a storage medium, a product and a program.

Background

Device-to-Device (D2D) communication, vehicle-to-vehicle (Vehicle to Vehicle, V2V) communication, vehicle-to-pedestrian (Vehicle to Pedestrian, V2P) communication, or vehicle-to-infrastructure/Network (Vehicle to Infrastructure/Network, V2I/N) communication is a technique in which communication is directly made between terminal devices (TERMINAL DEVICE), links of direct transmission between the terminal devices may be defined as side links (Sidelink, SL), V2V, V P and V2I/N are collectively referred to as V2X, i.e., the vehicle communicates with anything. In D2D communication or V2X communication, transmission of sidestream information may be performed between two terminal devices, that is, sidestream communication may be performed.

However, how to send side-line information overlapping time domains by the terminal device is a constant concern in the art.

Disclosure of Invention

The embodiment of the application provides a communication method, a device, equipment, a chip, a storage medium, a product and a program.

In a first aspect, an embodiment of the present application provides a communication method, including:

The terminal equipment determines first total transmission power of M carriers; wherein, M is an integer greater than or equal to 2, and the side information on any one carrier and the side information on at least one carrier at least partially overlap in the time domain;

Under the condition that the first total transmission power is larger than a first threshold value, the terminal equipment reselects resources of sidestream information on a first carrier; the first carrier is included in the M carriers.

In a second aspect, an embodiment of the present application provides a communication method, including:

In the case that the first total transmission power is greater than a first threshold, the terminal device determines a first carrier from the M carriers based on at least one of: the method comprises the steps of remaining time delay of a data packet corresponding to the side information on M carriers, whether resources for transmitting the side information on the M carriers are indicated, retransmission or primary transmission of resources corresponding to the side information on the M carriers, the transmission times of a Transport Block (TB) corresponding to the side information on the M carriers, and the remaining transmission times of a TB corresponding to the side information on the M carriers;

The terminal device discards transmitting the first carrier.

In a third aspect, an embodiment of the present application provides a communication apparatus, including:

A determining unit, configured to determine a first total transmission power of M carriers; wherein, M is an integer greater than or equal to 2, and the side information on any one carrier and the side information on at least one carrier at least partially overlap in the time domain;

A reselection unit, configured to reselect resources on the sidestream information on the first carrier when the first total transmission power is greater than a first threshold; the first carrier is included in the M carriers.

In a fourth aspect, an embodiment of the present application provides a communication apparatus, including:

The determining unit is further configured to determine, when the first total transmission power is greater than a first threshold, a first carrier from the M carriers based on at least one of: the method comprises the steps of remaining time delay of a data packet corresponding to the side information on M carriers, whether resources for transmitting the side information on the M carriers are indicated, retransmission or primary transmission of resources corresponding to the side information on the M carriers, the transmission times of a Transport Block (TB) corresponding to the side information on the M carriers, and the remaining transmission times of a TB corresponding to the side information on the M carriers;

And the discarding unit is used for discarding the first carrier wave.

In a fifth aspect, an embodiment of the present application provides a terminal device, including: a processor and a memory for storing a computer program, the processor being adapted to invoke and run the computer program stored in the memory for performing the method according to the first or second aspect.

In a sixth aspect, an embodiment of the present application provides a chip, including: a processor for calling and running a computer program from a memory, causing a terminal device on which the chip is mounted to perform the method according to the first or second aspect.

In a seventh aspect, an embodiment of the present application provides a computer storage medium storing a computer program for causing a terminal device to perform the method according to the first or second aspect.

In an eighth aspect, an embodiment of the present application provides a computer program product comprising computer program instructions for causing a terminal device to perform the method according to the first or second aspect.

In a ninth aspect, an embodiment of the present application provides a computer program, the computer program causing a terminal device to perform the method according to the first or second aspect.

In the embodiment of the application, terminal equipment determines first total transmission power of M carriers; wherein, M is an integer greater than or equal to 2, and the side information on any one carrier and the side information on at least one carrier at least partially overlap in the time domain; under the condition that the first total transmission power is larger than a first threshold value, the terminal equipment reselects resources of sidestream information on a first carrier; the first carrier is included in the M carriers. In this way, the terminal equipment performs resource reselection on the sidestream information on the first carrier, so that the total transmission power of the carrier for transmitting the sidestream information meets the requirement, and the sidestream information on the first carrier can be transmitted on the reselected resource, thereby improving the reliability of sidestream information transmission.

Drawings

The accompanying drawings, which are included to provide a further understanding of the application and are incorporated in and constitute a part of this specification, illustrate embodiments of the application and together with the description serve to explain the application and do not constitute a limitation on the application. In the drawings:

fig. 1 is a schematic diagram of network coverage inside line communication according to an embodiment of the present application;

fig. 2 is a schematic diagram of a partial network coverage sidestream communication according to an embodiment of the present application;

fig. 3 is a schematic diagram of network coverage outside communication according to an embodiment of the present application;

Fig. 4 is a schematic diagram of a unicast transmission manner according to an embodiment of the present application;

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

fig. 6 is a schematic diagram of a broadcast transmission mode according to an embodiment of the present application;

Fig. 7 is a schematic diagram of a process for selecting resources based on complete interception according to an embodiment of the present application;

FIG. 8 is a flow chart of a communication method provided in the related art;

fig. 9 is a schematic diagram of multi-carrier transmission discard provided in the related art;

fig. 10 is a schematic flow chart of a communication method according to an embodiment of the present application;

FIG. 11 is a flow chart of another communication method according to an embodiment of the present application;

fig. 12 is a schematic diagram of multi-carrier reselection provided in an embodiment of the present application;

Fig. 13 is a flow chart of another communication method according to an embodiment of the present application;

FIG. 14 is a flowchart of another communication method according to an embodiment of the present application;

Fig. 15 is a flow chart of a communication method according to another embodiment of the present application;

fig. 16 is a flow chart of a communication method according to another embodiment of the present application;

FIG. 17 is a flow chart of a communication method according to another embodiment of the present application;

Fig. 18 is a schematic structural diagram of a communication device according to an embodiment of the present application;

fig. 19 is a schematic structural diagram of another communication device according to an embodiment of the present application;

Fig. 20 is a schematic block diagram of a terminal device according to an embodiment of the present application;

Fig. 21 is a schematic structural view of a chip according to an embodiment of the present application.

Detailed Description

The following description of the technical solutions according to the embodiments of the present application will be given with reference to the accompanying drawings in the embodiments of the present application, and it is apparent that the described embodiments are some embodiments of the present application, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the application without making any inventive effort, are intended to be within the scope of the application.

The technical schemes described in the embodiments of the present application may be arbitrarily combined without any collision. In the description of the present application, the meaning of "a plurality" is two or more, unless explicitly defined otherwise.

In the side line communication, according to the network coverage condition of the terminal device for communication, the side line communication can be classified into the network coverage inner line communication, the partial network coverage side line communication and the network coverage outer line communication.

Fig. 1 is a schematic diagram of network coverage inside line communication provided in an embodiment of the present application, as shown in fig. 1, in network coverage inside line communication, all terminal devices performing side line communication are located within a coverage area of the same network device, so that the terminal devices may perform side line communication based on the same side line configuration by receiving configuration signaling of the network device.

Fig. 2 is a schematic diagram of a part of network coverage sidestream communication provided in an embodiment of the present application, as shown in fig. 2, in the case of the part of network coverage sidestream communication, a part of terminal equipment performing sidestream communication is located in a coverage area of a network device, where the part of terminal equipment can receive a configuration signaling of the network device, and performs sidestream communication according to configuration of the network device. In this case, the terminal device outside the network coverage area determines the sidestream configuration according to pre-configuration information and information carried in a sidestream Broadcast CHannel (PSBCH) sent by the terminal device within the network coverage area, so as to perform sidestream communication.

Fig. 3 is a schematic diagram of network coverage outside communication provided in an embodiment of the present application, as shown in fig. 3, for network coverage outside communication, all terminal devices performing outside communication are located outside the network coverage, and all terminal devices may determine outside configuration according to pre-configuration information to perform outside communication.

Device-to-device communication is a D2D based side-link transmission technique, which has higher spectral efficiency and lower transmission delay than conventional cellular systems in which communication data is received or transmitted via network devices. The internet of vehicles system employs a direct communication mode from device to device, and two transmission modes are defined in the third generation partnership project (3rd Generation Partnership Project,3GPP): a first mode and a second mode.

First mode (also referred to as mode 3 in long term evolution (Long Term Evolution, LTE) -V2X): the transmission resources of the terminal equipment can be allocated by the network equipment, and the terminal equipment can transmit data on the side links according to the resources allocated by the network equipment; the network device may allocate resources for single transmission to the terminal device, or may allocate resources for semi-static transmission to the terminal device. As shown in fig. 1, the terminal device is located in the coverage area of the network, and the network allocates transmission resources used for side transmission to the terminal device.

Second mode (also referred to as mode 4 in LTE-V2X): the terminal device may select one resource from the resource pool to transmit data. As shown in fig. 3, the terminal device is located outside the coverage area of the cell, and the terminal device can autonomously select transmission resources from a preconfigured resource pool to perform side transmission; or in fig. 1, the terminal device may autonomously select transmission resources from a resource pool configured by the network to perform side transmission.

In New Radio (NR) -V2X, automatic driving needs to be supported, so higher requirements are put on data interaction between vehicles, such as higher throughput, lower latency, higher reliability, larger coverage, more flexible resource allocation, etc.

In NR-V2X, unicast and multicast transmission modes are introduced. For unicast transmission, the receiving terminal equipment has only one terminal equipment.

Fig. 4 is a schematic diagram of a unicast transmission manner provided in the embodiment of the present application, as shown in fig. 4, unicast transmission may be performed between the terminal device 1 and the terminal device 2.

Fig. 5 is a schematic diagram of a multicast transmission manner provided in an embodiment of the present application, as shown in fig. 5, for multicast transmission, a receiving end may be all terminal devices in a communication group, or may be all terminal devices within a certain transmission distance. For example, terminal device 1, terminal device 2, terminal device 3 and terminal device 4 form a communication group in which terminal device 1 transmits data, and the other terminal devices in the group may be receiving-end terminal devices.

Fig. 6 is a schematic diagram of a broadcast transmission mode provided in an embodiment of the present application, as shown in fig. 6, for the broadcast transmission mode, a receiving end may be any one of terminal devices around a transmitting end terminal device, for example, terminal device 1 is a transmitting end terminal device, and other terminal devices 2-6 around the receiving end terminal device are all receiving end terminal devices.

In LTE-V2X, full interception or partial interception is supported. Wherein, the complete interception is that the terminal equipment can intercept the data transmitted by other terminal equipment in all time slots (or subframes) except the time slot for transmitting the data; whereas partial interception (PARTIAL SENSING) is for terminal device power saving, the terminal device may need to intercept partial time slots (or subframes) and give the result of partial interception to perform resource selection. When the higher layer does not configure partial interception, the resource selection is performed by adopting a complete interception mode by default.

Fig. 7 is a schematic diagram of a process of resource selection based on complete interception, as shown in fig. 7, when a new data packet arrives at a time n, resource selection is needed, and a terminal device performs resource selection within [ n+t ₁,n+T ₂ ] ms (i.e., a selection window) according to an interception result in the past 1 second (i.e., an interception result heard in an interception window), where T ₁ < = 4 ms; t _2min(prio _TX)≤T ₂ is less than or equal to 100, and the selection of T ₁ may be greater than the processing delay of the terminal device, where the selection of T ₂ needs to be within the range of the delay requirement of the service, for example, if the delay requirement of the service is 50ms, 20< = T ₂ < = 50, and the delay requirement of the service is 100ms, 20< = T ₂ < = 100. Wherein, T _2min(prio _TX) may be the minimum value that T ₂ can take.

The process of selecting the resources in the selection window by the terminal equipment is as follows:

1. the terminal device takes all available resources in the selection window as a set a.

2. If the terminal equipment does not have the interception result of some subframes in the interception window, the resources of the subframes corresponding to the subframes in the selection window are eliminated.

3. If the terminal device detects a Physical Sidelink Control Channel (PSCCH) in a listening window, measuring the received Power (REFERENCE SIGNAL RECEIVING Power, RSRP) of a reference signal of a PSSCH scheduled by the PSCCH, and if the measured PSSCH-RSRP is higher than a PSSCH-RSRP threshold and the reserved transmission resource thereof determined according to the reservation information in the Control information conflicts with the resource of the data to be transmitted by the terminal device, excluding the resource in the set A. The PSSCH-RSRP threshold is selected according to the priority information carried in the detected PSCCH and the priority of the data to be transmitted by the terminal equipment.

4. If the number of the remaining resources in the set a is less than 20% of the total number of resources, the terminal device may raise the threshold of the PSSCH-RSRP by 3dB, and repeat the steps 1-3 until the number of the remaining resources in the set a is greater than 20% of the total number of resources.

5. The terminal equipment detects the side link received signal strength (Sidelink-RECEIVED SIGNAL STRENGTH Indicator, S-RSSI) of the rest resources in the set A, sorts the resources according to the energy level, and puts the resources with the lowest energy (relative to the number of the resources in the set A) into the set B.

6. And the terminal equipment selects one resource from the set B with medium probability to perform data transmission.

When the higher layer configuration is selected based on partial interception, the specific interception process is as follows:

And selecting Y time slots in the resource selection window based on the terminal equipment of partial interception, judging whether resources on the Y time slots can be used as candidate resources according to the interception result, if so, putting the resources into a set S _B, and if the number of elements in the set S _B is more than or equal to 20% of the total number of resources on the Y time slots, reporting S _B to a high-level.

It should be noted that the embodiment of the present application is not limited to the method of selecting resources, and the method of selecting resources may also have other methods, for example, may refer to the methods described in the standards or protocols disclosed or not in the related art.

In LTE-V2X resource selection modes 3 and 4, when a terminal device transmits on its side uplink, there is a time-domain overlap between the transmission on one carrier and the transmission of the other carriers, and the total transmission power of these carriers exceeds P _CMAX (the maximum transmission total power predefined by the terminal device), the terminal device should adjust the transmission power: in the multi-carrier multi-side transmission, the side control information (Sidelink Control Information, SCI) of each transmission correspondingly contains an information field with priority, and the larger the value of the priority information field is, the lower the priority is, the smaller the value is, and the higher the priority is; the terminal device adjusts the transmit power of the side-link with the lowest priority (the largest priority value) to ensure that the total transmit power of the multiple carriers does not exceed P _CMAX. If the total power of the transmissions by the terminal device on the multiple carriers still exceeds P _CMAX after the power adjustment, the terminal device should discard the side uplink transmission on the carrier with the lowest priority (the largest priority value); if the total power transmitted is still higher than P _CMAX, the operation is repeated again on the remaining carriers as per the above steps. When there are side-link transmissions on two or more carriers with the same priority, the protocol is not standardized, and the terminal device can decide which carrier to adjust the side-link transmission on.

Fig. 8 is a flow chart of a communication method provided in the related art, as shown in fig. 8, the communication method may include the following steps:

S801, the terminal equipment determines SL multi-carrier transmission, and determines that side line information time domains on a plurality of carriers at a certain moment are at least partially overlapped.

S802, the terminal equipment determines whether the first total transmission power of all current carriers is larger than P _CMAX.

In case it is determined that the first total transmission power is greater than P _CMAX, S803 may be performed; in the case where it is determined that the first total transmission power is not greater than P _CMAX, S809 may be performed.

S803, the terminal equipment determines a carrier corresponding to the side information with the lowest transmission priority from all current carriers, and adjusts the transmission power of the carrier.

In some embodiments, adjusting the transmit power of the carrier may be adjusting the transmit power of the carrier down.

S804, the terminal equipment determines the second total transmission power of all current carriers, and determines whether the second total transmission power is greater than P _CMAX.

In case it is determined that the second total transmission power is greater than P _CMAX, S806 may be performed; in the case where it is determined that the second total transmission power is not greater than P _CMAX, S809 may be performed.

S805, the terminal equipment discards the carrier corresponding to the sidestream information with the lowest transmission priority.

S806, the terminal device determines a third total transmission power of all current carriers, and determines whether the third total transmission power is greater than P _CMAX.

In case it is determined that the third total transmission power is greater than P _CMAX, S803 may be performed; in the case where it is determined that the third total transmission power is not greater than P _CMAX, S809 may be performed.

S807, the terminal equipment sends side line information.

When a terminal device transmits at a certain moment and encounters multi-carrier overlapping, it needs to judge whether the total transmission power at this moment exceeds the setting value of P _CMAX, if the total transmission power exceeds the maximum transmission power setting value P _CMAX, it needs to select a carrier with the lowest transmission priority from all the current overlapping SL transmission types, adjust the transmission power, generally reduce the transmission power, and then make a second comparison to judge whether the total transmission power after the adjustment exceeds P _CMAX, if so, discard the current SL transmission on this carrier. And then, performing third comparison, judging whether the total transmission power of the remaining carriers after discarding the transmission exceeds P _CMAX, if so, repeating the previous steps, namely selecting the transmission power of the carrier with the lowest transmission priority of the current remaining carrier to perform power adjustment, and performing the following actions of second judgment, discarding and the like. The terminal device does not transmit until the total transmit power does not exceed P _CMAX.

Fig. 9 is a schematic diagram of multi-carrier transmission discard provided in the related art, as shown in fig. 9, in the case where the total transmission power of carrier 1, carrier 2 and carrier 3 on the overlapping time domain resources is greater than P _CMAX, the terminal device determines that the carrier 2 corresponding to the side row information with the lowest transmission priority is transmitted, and the terminal device discards the carrier 2, so that the information corresponding to the carrier 2 on the overlapping time domain resources (i.e. transmission 2) will not be transmitted, and the information corresponding to the carrier 1 and carrier 3 on the overlapping time domain resources (i.e. transmission 1 and transmission 3) may be transmitted.

However, in the related art, if the condition is still not satisfied after the transmission power adjustment, the SL transmission on this carrier is directly discarded, which causes a series of problems. For example, SL transmission drops, which can lead to an increase in system packet loss rate; SL transmission drops and no retransmission more leads to reduced reception performance; if the SL transmission is dropped for the initial transmission, then subsequent retransmission reception may be affected. Therefore, SL transmission dropping may result in degradation of transmission reliability.

The technical scheme of the embodiment of the application can be applied to various communication systems, such as: long term evolution (Long Term Evolution, LTE) systems, LTE time division duplexing (Time Division Duplex, TDD), universal mobile telecommunications system (Universal Mobile Telecommunication System, UMTS), internet of things (Internet of Things, ioT) systems, narrowband internet of things (Narrow Band Internet of Things, NB-IoT) systems, enhanced machine type communications (ENHANCED MACHINE-Type Communications, eMTC) systems, 5G communication systems (also referred to as NR communication systems), or future communication systems (e.g., 6G, 7G communication systems), and the like.

The Terminal device or another device in the present application may be referred to as a User Equipment (UE), a Mobile Station (MS), a Mobile Terminal (MT), 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. The terminal device or another device may comprise one or a combination of at least two of the following: personal digital assistants (Personal DIGITAL ASSISTANT, PDA), handheld devices with wireless communication capabilities, computing devices or other processing devices connected to wireless modems, servers, mobile phones (mobile phones), tablet computers (Pad), computers with wireless transceiver capabilities, palm computers, desktop computers, personal digital assistants, portable media players, smart speakers, navigation devices, smartwatches, smart glasses, smart necklaces and other wearable devices, pedometers, digital TVs, virtual Reality (VR) terminal devices, augmented Reality (Augmented Reality, AR) terminal devices, wireless terminals in industrial control (industrial control), wireless terminals in unmanned (SELF DRIVING), wireless terminals in teleoperation (remote medical surgery), wireless terminals in smart grid (SMART GRID), wireless terminals in transportation security (transportation safety), wireless terminals in smart city (SMART CITY), wireless terminals in smart home (smart home) and vehicles in vehicle systems, on-board devices, modules, wireless modems (35), CPE (35, 35). The terminal device and the other device may be the same type of device or different types of devices. For example, the terminal device and the other device are both vehicles. For another example, one of the terminal device and the other device is a cellular phone, and the other device is a car.

The network device in the embodiment of the application can comprise an access network device and/or a core network device.

The access network device may comprise one or a combination of at least two of the following: an evolved base station (Evolutional Node B, eNB or eNodeB) in a long term evolution (Long Term Evolution, LTE) system, a next generation radio access network (Next Generation Radio Access Network, NG RAN) device, a base station (gNB) in a NR system, a small station, a micro station, a radio controller in a cloud radio access network (Cloud Radio Access Network, CRAN), an access point for Wireless-Fidelity (Wi-Fi), a transmission receiving point (transmission reception point, TRP), a relay station, an access point, a vehicle device, a wearable device, a hub, a switch, a bridge, a router, a network device in a future evolved public land mobile network (Public Land Mobile Network, PLMN), and so on.

The core network device may be a 5G core (5G core,5 gc) device, which may comprise one or a combination of at least two of the following: an access and mobility management function (ACCESS AND Mobility Management Function, AMF), an authentication server function (Authentication Server Function, AUSF), a user plane function (User Plane Function, UPF), a session management function (Session Management Function, SMF), a location management function (Location Management Function, LMF), a policy control function (Policy Control Function, PCF). In other embodiments, the Core network device may also be a packet Core evolution (Evolved Packet Core, EPC) device of an LTE network, for example, a session management function+a data gateway (Session Management Function +core PACKET GATEWAY, SMF +pgw-C) device of the Core network. It should be appreciated that SMF+PGW-C may perform the functions performed by both SMF and PGW-C. In the network evolution process, the core network device may also call other names, or form new network entities by dividing the functions of the core network, which is not limited in this embodiment of the present application.

The term "and/or" is herein merely an association relationship describing an associated object, meaning that there may be three relationships, e.g., a and/or B, may represent: a exists alone, A and B exist together, and B exists alone. In addition, the character "/" herein generally indicates that the front and rear associated objects are an "or" relationship. It should also be understood that, in the embodiments of the present application, the "indication" may be a direct indication, an indirect indication, or an indication having an association relationship. For example, a indicates B, which may mean that a indicates B directly, e.g., B may be obtained by a; it may also indicate that a indicates B indirectly, e.g. a indicates C, B may be obtained by C; it may also be indicated that there is an association between a and B. It should also be understood that "corresponding" mentioned in the embodiments of the present application may mean that there is a direct correspondence or an indirect correspondence between the two, may mean that there is an association between the two, and may also be a relationship between an instruction and an indicated, configured, or the like. It should also be understood that "predefined", "protocol conventions", "predetermined" or "predefined rules" mentioned in the embodiments of the present application may be implemented by pre-storing corresponding codes, tables or other means available for indicating relevant information in devices (e.g. including terminal devices and network devices), and the present application is not limited to the specific implementation thereof. Such as predefined may refer to what is defined in the protocol. It should be further understood that, in the embodiment of the present application, the "protocol" may refer to a standard protocol in the field of communications, and may include, for example, an LTE protocol, an NR protocol, and related protocols applied in a future communication system, which is not limited by the present application.

In order to facilitate understanding of the technical solution of the embodiments of the present application, the technical solution of the present application is described in detail below through specific embodiments. The above-mentioned scheme can be optionally combined with the technical scheme of the embodiment of the present application, and all the schemes belong to the protection scope of the embodiment of the present application. Embodiments of the present application include at least some of the following.

The embodiment of the application discloses a mechanism for triggering resource reselection according to various conditions/factors when a side uplink multi-carrier is transmitted. When the terminal supports multi-carrier transmission/reception and the characteristic of carrier aggregation, the SL transmission on the multi-carrier is at least partially overlapped in time domain, and if the transmission power of the terminal at the moment exceeds the upper limit P _CMAX of the transmission power, the resource reselection is triggered; besides the SL transmission priority, the embodiment of the present application further adds more judgment factors as conditions, so as to determine the actions such as power adjustment, resource reselection, or transmission dropping.

The communication method in the embodiment of the application can comprise at least one of the following contents:

Triggering resource selection reselection when the transmission power exceeds P _CMAX;

The terminal determines that resource reselection or transmission discarding is required based on different judging conditions; for example, different factors and judgment conditions (i.e. the only condition that the transmission priority is not used as the carrier selection) are introduced to determine the next action of the terminal.

When the multi-carrier SL transmission overlaps, one or a plurality of carriers are selected and determined based on a plurality of conditions, and transmission power adjustment, resource reselection or transmission discarding is performed. For example, different factors and judgment conditions are introduced to determine the next action of the terminal.

Fig. 10 is a flow chart of a communication method according to an embodiment of the present application, as shown in fig. 10, where the method includes:

S1001, a terminal device determines first total transmission power of M carriers; and the M is an integer greater than or equal to 2, and the sidestream information on any one carrier wave and the sidestream information on at least one carrier wave at least partially overlap in the time domain.

Alternatively, the first total transmission power may be a sum of transmission powers of each of the M carriers. For example, in the case where the M carriers include a first carrier and a second carrier, the first total transmission power may be a sum of the transmission power of the first carrier and the transmission power of the second carrier. The M carriers may be determined by the terminal device, or may be configured by the network device, or may be configured by another device in communication with the terminal device side.

Alternatively, the M carriers may be carriers corresponding to one or more time units. Alternatively, the time unit may comprise a subframe, a slot, a symbol, or the like. Alternatively, one or more of the time units may be consecutive time units. Alternatively, one or more of the time units may be discrete time units.

Optionally, in some embodiments, the sidelink information on any one of the M carriers at least partially overlaps with the sidelink information time domain on all other carriers in one or more time units. For example, the M carriers may include a first carrier, a second carrier, and a third carrier, and the side information on the first carrier may at least partially overlap with both the side information on the second carrier and the side information on the third carrier in time domain, where the side information on the second carrier and the side information on the third carrier at least partially overlap in time domain. In other embodiments, the side-row information on any one of the M carriers may at least partially overlap with the side-row information time domains on other partial carriers during one or more time units. For example, the M carriers may include a first carrier, a second carrier, and a third carrier, and the side information on the first carrier may at least partially overlap with both the side information on the second carrier and the side information on the third carrier in a time domain, where the side information on the second carrier and the side information on the third carrier do not at least partially overlap in a time domain.

Optionally, any two side line information time domains at least partially overlap, which may include: any two side line information time domains are partially overlapped or completely overlapped.

Optionally, the terminal device may determine, at a certain time, a time domain overlap of side line information on M carriers. For example, on a certain time slot or symbol, the terminal device determines that M carriers need to be transmitted, so that the terminal device may determine that side information on M carriers need to be transmitted on the time slot or symbol.

S1002, under the condition that the first total sending power is larger than a first threshold value, the terminal equipment reselects resources on sidestream information on a first carrier; the first carrier is included in the M carriers.

Alternatively, the first carrier may be one carrier or a plurality of carriers of the M carriers. Alternatively, the sidestream information on the first carrier may be sidestream information corresponding to the first carrier for one or more time units.

Optionally, the terminal device performs resource reselection on the sidestream information on the first carrier, so that the sidestream information on the first carrier may be sent on the reselected resource. Optionally, the sidestream information transmitted on the reselected resource is still transmitted over the first carrier, or may be transmitted over another carrier. Alternatively, the time domain length and/or frequency domain range of the resource that was reselected may be the same as the time domain length and/or frequency domain range of the resource prior to reselection, or different from the time domain length and/or frequency domain range of the resource prior to reselection.

In some embodiments, the performing, by the terminal device, resource reselection on sidestream information on a first carrier in a case where the first total transmission power is greater than a first threshold includes:

When the first total transmission power is greater than the first threshold, the terminal device determines second total transmission powers of the M carriers after performing power adjustment on the transmission power of the first carrier;

And under the condition that the second total sending power is larger than the first threshold value, the terminal equipment performs resource reselection on sidestream information on the first carrier.

The second total transmit power is less than the first total transmit power. Optionally, performing power adjustment on the transmission power of the first carrier may include: and performing power reduction processing on the transmission power of the first carrier. The adjusted value and/or the adjusted value of the transmission power of the first carrier may be preset by the terminal device or may be configured by the network device or another device.

Alternatively, the power adjustment may be performed on the transmission power of the first carrier, where the transmission power of the first carrier is adjusted to a minimum value that can be adjusted, or the transmission power of the first carrier after adjustment may be obtained by subtracting the first set value from the transmission power of the first carrier before adjustment, or the transmission power of the first carrier after adjustment may be obtained by dividing the transmission power of the first carrier before adjustment by the second set value.

In other embodiments, the method may further comprise: and under the condition that the second total sending power is smaller than or equal to the first threshold value, the terminal equipment sends sidestream information on the M carriers.

Alternatively, the terminal device may send sidestream information on M carriers to another device.

In some embodiments, the terminal device performs resource reselection on sidestream information on the first carrier, including: and under the condition that the sidestream information on the first carrier wave meets the resource reselection condition, the terminal equipment reselects the resource for the sidestream information on the first carrier wave.

In some embodiments, when the first total transmission power is greater than a first threshold, and the sidestream information on the first carrier meets a resource reselection condition, the terminal device performs resource reselection on the sidestream information on the first carrier.

In other embodiments, the terminal device may perform resource reselection on the sidestream information on the first carrier when the second total transmission power is greater than the first threshold and the sidestream information on the first carrier meets a resource reselection condition.

Optionally, in the embodiment of the present application, the terminal device may first perform the step of determining the total transmission power, and then perform the step of determining whether the sidestream information on the first carrier meets the resource reselection condition; or the terminal device may first perform the step of determining whether the sidestream information on the first carrier meets the resource reselection condition, and then perform the step of determining the transmit power in the process.

In some embodiments, the method further comprises: and under the condition that the first total transmission power is larger than the first threshold value and the sidestream information on the first carrier wave does not meet the resource reselection condition, the terminal equipment discards and transmits the first carrier wave.

Optionally, the terminal device discards sending the first carrier wave may include: the terminal device discards transmitting the first carrier at one or more time units and transmits the first carrier at a time unit other than or subsequent to the one or more time units. For example, the first carrier may be transmitted on a time domain corresponding to the reselected resource.

Alternatively, in the case where the terminal number device discards transmitting the first carrier, the terminal device will not be able to transmit sidestream information on the first carrier. Optionally, the terminal device may discard the sidestream information on the first carrier.

In some embodiments, the method further comprises:

When the first total transmission power is greater than the first threshold and the sidestream information on the first carrier does not meet the resource reselection condition, the terminal device determines second total transmission powers of the M carriers after performing power adjustment on the transmission power of the first carrier;

And discarding, by the terminal device, transmitting the first carrier when the second total transmission power is greater than the first threshold.

In other embodiments, the terminal device sends side information on M-1 carriers other than the first carrier among the M carriers if the second total transmission power is less than or equal to the first threshold.

In some embodiments, after the terminal device discards transmitting the first carrier, the method further comprises:

The terminal equipment determines to discard and send the third total sending power of M-1 carriers except the first carrier in the M carriers;

and transmitting sidestream information on the M-1 carriers under the condition that the third total transmission power is smaller than or equal to the first threshold value.

In other embodiments, the method further comprises: and under the condition that the third total sending power is larger than the first threshold value, the terminal equipment performs resource reselection on sidestream information on a second carrier wave in the M-1 carriers, either discards the second carrier wave to send, or adjusts the sending power of the second carrier wave.

In some embodiments, after the terminal device performs resource reselection on the sidestream information on the first carrier, the method further includes:

After the terminal equipment determines that the resource reselection is performed on the sidestream information on the first carrier, the terminal equipment determines a fourth total transmission power of M-1 carriers except the first carrier in the M carriers;

And under the condition that the fourth total sending power is smaller than or equal to the first threshold value, the terminal equipment sends sidestream information on the M-1 carriers.

In other embodiments, the method further comprises: and under the condition that the fourth total transmission power is larger than the first threshold value, the terminal equipment performs resource reselection on sidestream information on a third carrier wave in the M-1 carriers, discards the third carrier wave to transmit, or adjusts the transmission power of the third carrier wave.

The following describes whether the sidestream information on the first carrier meets the resource reselection condition:

In some embodiments, the sidestream information on the first carrier meets the resource reselection condition, and/or the sidestream information on the first carrier does not meet the resource reselection condition, determined based on at least one of:

a transmission priority of sidestream information on the first carrier;

The residual time delay of the data packet corresponding to the sidestream information on the first carrier;

Whether the resource of the sidestream information transmission on the first carrier is indicated;

A corresponding Transport Block (TB) is sent by the sidestream information on the first carrier, and is primary transmission or retransmission;

the corresponding TB sending times are sent by the sidestream information on the first carrier;

and transmitting the corresponding residual transmission times of the TB by the sidestream information on the first carrier.

Optionally, the sending priority of the sidestream information on the first carrier may include: and the transmission priority corresponding to the service of the sidestream information on the first carrier. Optionally, the remaining delay of the data packet corresponding to the sidestream information on the first carrier may include: the residual time delay of the data packet corresponding to the service of the sidestream information on the first carrier.

For example, whether the sidestream information on the first carrier satisfies the resource reselection condition may be determined based on a transmission priority of the sidestream information on the first carrier. For another example, whether the sidestream information on the first carrier meets the resource reselection condition may be determined based on a transmission priority of the sidestream information on the first carrier and a remaining delay of a data packet corresponding to the sidestream information on the first carrier. The method for determining whether the sidestream information on the first carrier wave meets the resource reselection condition is not limited.

In some embodiments, the sidestream information on the first carrier satisfies a resource reselection condition, including at least one of:

the transmission priority of the sidestream information on the first carrier is greater than a preset priority;

the transmission priority of the sidestream information on the first carrier is smaller than or equal to a preset priority;

the residual time delay of the data packet corresponding to the sidestream information on the first carrier is greater than 0 and meets the minimum processing time of resource selection or resource reselection; for example, the remaining delay of the data packet corresponding to the sidestream information on the first carrier is greater than the minimum processing time of resource selection or resource reselection;

The resources of the sidestream information transmission on the first carrier are not indicated;

a corresponding TB (transport block) for transmitting sidestream information on the first carrier is primary transmission;

Transmitting corresponding TB (transport block) to retransmission by the sidestream information on the first carrier;

The transmission times of the corresponding TB transmitted by the sidestream information on the first carrier wave are smaller than or equal to a first threshold value;

The transmission times of the corresponding TB of the sidestream information transmission on the first carrier wave are larger than a first threshold value;

The residual transmission times of the corresponding TB transmitted by the sidestream information on the first carrier wave are larger than a second threshold value;

And the residual transmission times of the corresponding TB transmitted by the sidestream information on the first carrier wave are smaller than or equal to a second threshold value.

In some embodiments, the sidestream information on the first carrier does not satisfy a resource reselection condition, including at least one of:

The residual time delay of the data packet corresponding to the sidestream information on the first carrier is not more than 0 and/or does not meet the minimum processing time of resource selection or resource reselection;

The resources of sidestream information transmission on the first carrier are indicated;

the residual transmission times of the corresponding TB transmitted by the sidestream information on the first carrier wave are smaller than or equal to a second threshold value;

And the residual transmission times of the corresponding TB transmitted by the sidestream information on the first carrier wave are larger than a second threshold value.

The following describes a manner of determining the first carrier:

In some embodiments, the first carrier is determined based on at least one of:

a transmission priority of sidestream information on the first carrier;

The corresponding TB sent by the sidestream information on the first carrier is primary transmission or retransmission;

In some embodiments, the first carrier is determined based on at least one of:

The transmission priority of the sidestream information on the first carrier is the lowest transmission priority in the sidestream information on the M carriers;

the residual time delay of the data packet corresponding to the side line information on the first carrier is the maximum residual time delay or the minimum residual time delay in the residual time delays of the data packets corresponding to the side line information on the M carriers;

The resources of the sidestream information transmission on the first carrier are resources which are not indicated in the resources of the sidestream information transmission on the M carriers;

The corresponding TB of the sidestream information transmission on the first carrier is a retransmission resource in the resources corresponding to the sidestream information transmission on the M carriers;

the transmission times of the corresponding TB of the sidestream information transmission on the first carrier are the maximum transmission times of the corresponding TB of the sidestream information transmission on the M carriers;

The remaining transmission times of the TBs corresponding to the sidestream information transmission on the first carrier are the maximum transmission times or the minimum transmission times of the remaining transmission times of the TBs corresponding to the sidestream information transmission on the M carriers.

In some embodiments, the transmission priority of the sidestream information on the first carrier and/or the transmission priority of the sidestream information on the M carriers are carried by a priority indication information field carried in sidestream control information SCI.

In some embodiments, in the priority indication information field carried in the SCI, a transmission priority of sidestream information on the first carrier and/or a transmission priority of sidestream information on the M carriers may be carried.

Fig. 11 is a flow chart of another communication method according to an embodiment of the present application, as shown in fig. 11, the method includes:

S1101, the terminal equipment determines first total transmission power of M carriers; and the M is an integer greater than or equal to 2, and the sidestream information on any one carrier wave and the sidestream information on at least one carrier wave at least partially overlap in the time domain.

S1102, in a case where the first total transmission power is greater than a first threshold, the terminal device determines a first carrier from the M carriers based on at least one of: the method comprises the steps of remaining time delay of a data packet corresponding to the side information on M carriers, whether resources for transmitting the side information on the M carriers are indicated, retransmission or primary transmission of resources corresponding to the side information on the M carriers, the transmission times of a Transport Block (TB) corresponding to the side information on the M carriers, and the remaining transmission times of the TB corresponding to the side information on the M carriers.

Alternatively, the manner in which the terminal device determines the first carrier may be preconfigured by the terminal device, or may be indicated by the network device or another device.

Optionally, when determining the first carrier, the terminal device may also combine transmission priorities of sidestream information on M carriers. For example, the terminal device may determine the first carrier from the M carriers based on the transmission priority of the side line information on the M carriers and the remaining delay of the data packet corresponding to the side line information on the M carriers.

And S1103, the terminal equipment discards and transmits the first carrier wave.

In the embodiment of the present application, the terminal device determines to discard the first carrier to be transmitted based on at least one of the remaining time delay of the data packet corresponding to the side information on the M carriers, whether the resource for transmitting the side information on the M carriers is indicated, the retransmission or the initial transmission of the resource corresponding to the side information on the M carriers, the number of transmission times of the transport block TB corresponding to the side information on the M carriers, and the remaining number of transmission times of the TB corresponding to the side information on the M carriers, instead of determining to discard the first carrier to be transmitted by the transmission priority of the side information on the carriers, so that the first carrier to be discarded can be determined from other aspects, and the manner of determining the first carrier is more perfect.

In some embodiments, the terminal device discarding sending the first carrier includes: and discarding, by the terminal device, transmitting the first carrier when the second total transmission power is greater than the first threshold.

In other embodiments, the terminal device sends sidestream information on the M carriers if the second total transmit power is less than or equal to the first threshold;

the second total transmission power is the total transmission power of the M carriers after the transmission power of the first carrier is adjusted.

In some embodiments, the sidestream information on the first carrier is determined based on at least one of the following, or the sidestream information on the first carrier is determined based on transmission priorities of sidestream information on M carriers, and at least one of the following:

For example, if there are resources for sidestream information transmission on N carriers in the M carriers that are not indicated, the first carrier may be: and the carrier corresponding to the minimum residual delay in the residual delays of the data packets corresponding to the side line information on the N carriers.

In other embodiments, after the terminal device discards transmitting the first carrier, the method further comprises:

And under the condition that the third total sending power is larger than the first threshold value, the terminal equipment performs resource reselection on sidestream information on a fourth carrier wave in the M-1 carriers, either discards the fourth carrier wave to send, or adjusts the sending power of the fourth carrier wave.

Alternatively, the determining manners of the first carrier, the second carrier, the third carrier, and the fourth carrier in the embodiment of the present application may be the same, or the determining manners of at least two carriers may be different. In some embodiments, the determining manner of the second carrier, the third carrier or the fourth carrier may refer to descriptions of embodiments corresponding to the determining manner of the first carrier, which are not described in detail in the embodiments of the present application.

Optionally, the determining manner whether the sidestream information on the first carrier, the second carrier, the third carrier and the fourth carrier in the embodiment of the present application meets the resource reselection condition may be the same, or the determining manner whether the sidestream information on at least two carriers meets the resource reselection condition may be different. In some embodiments, a determination manner of whether the sidestream information on the second carrier, the third carrier, or the fourth carrier meets the resource reselection condition may refer to a description of a determination manner of whether the sidestream information on the first carrier meets the resource reselection condition, which is not described in detail in the embodiments of the present application.

Optionally, in the embodiment of the present application, for the second carrier, the third carrier, or the fourth carrier, the terminal device performs reselection on side information on the carrier, discards the carrier, or adjusts transmission power of the carrier, which may be preset based on the terminal device, or may be indicated by the network device or another device. Alternatively, the execution of the second carrier, the third carrier, or the fourth carrier by the terminal device may be the same as the operation performed on the first carrier that was last determined by the terminal device.

In some embodiments of the present application, at a certain moment, the terminal needs to perform multi-carrier transmission, where the transmissions on S (S > 1 and is a positive integer) carriers overlap in the time domain, the total transmission power at this moment exceeds P _CMAX (i.e. the first threshold described above), after the carrier on which the SL transmission with the lowest priority is located is adjusted in the transmission power, if the total transmission power still exceeds P _CMAX, the current SL transmission on this carrier triggers resource selection reselection.

Optionally, in the embodiment of the present application, the transmission on the carrier may be understood as the same as the sidestream information on the carrier.

Fig. 12 is a schematic diagram of multi-carrier reselection provided in the embodiment of the present application, as shown in fig. 12, in the case where the total transmission power of carrier 1, carrier 2 and carrier 3 is greater than P _CMAX on the overlapping time domain resources, the terminal device determines carrier 2 from carrier 1, carrier 2 and carrier 3 based on the configuration, and the terminal device performs resource reselection on the information (i.e. transmission 2) corresponding to carrier 2, so that on the current overlapping time domain resources, carrier 2 will not be transmitted, and on the reselected time domain resources, the information (i.e. transmission 2) corresponding to carrier 2 will be transmitted. And information corresponding to carrier 1 and carrier 3 (i.e., transmission 1 and transmission 3) on coincident time domain resources may be transmitted. Alternatively, the manner in which the terminal device selects carrier 2 may be referred to the description of the manner in which the first carrier is selected. Alternatively, carrier 2 may be the first carrier described above.

Fig. 13 is a flow chart of another communication method according to an embodiment of the present application, as shown in fig. 13, where the method includes:

S1301, the terminal equipment determines that SL multi-carrier transmission is performed, and determines that side line information time domains on a plurality of carriers at a certain moment are at least partially overlapped.

S1302, the terminal device determines whether the first total transmission power of all current carriers is greater than P _CMAX.

In case it is determined that the first total transmission power is greater than P _CMAX, S1303 may be performed; in the case where it is determined that the first total transmission power is not greater than P _CMAX, S1307 may be performed.

S1303, the terminal equipment determines a target carrier from all current carriers and adjusts the sending power of the carrier.

Alternatively, the target carrier may be the first carrier, the second carrier, the third carrier, or the fourth carrier described above. The target carrier determined from all the current carriers for the first time is the first carrier, and the target carrier determined from all the current carriers for the non-first time can be the second carrier, the third carrier or the fourth carrier. The target carrier is one carrier of the first carrier, the second carrier, the third carrier, and the fourth carrier, which can be understood according to the description of the context.

Alternatively, in the case where all the current carriers are 2 carriers, the target carrier is determined from the 2 carriers. In the case where all the current carriers are 3 carriers, the target carrier is determined from the 3 carriers.

Alternatively, the determination manner of the target carrier may refer to the description of the above embodiment, for example, the transmission priority of the sidestream information on the target carrier is the lowest transmission priority of the sidestream information on the M carriers. For another example, the remaining delay of the data packet corresponding to the sidelink information on the target carrier is the maximum remaining delay or the minimum remaining delay of the remaining delays of the data packets corresponding to the sidelink information on the M carriers.

S1304, the terminal device determines a second total transmission power of all current carriers, and determines whether the second total transmission power is greater than P _CMAX.

In the case where it is determined that the second total transmission power is greater than P _CMAX, S1305 may be performed; in the case where it is determined that the second total transmission power is not greater than P _CMAX, S1307 may be performed.

And S1305, the terminal equipment performs resource reselection on the sidestream information on the target carrier.

S1306, the terminal equipment determines a third total transmission power of all current carriers, and determines whether the third total transmission power is greater than P _CMAX.

In case it is determined that the third total transmission power is greater than P _CMAX, S1303 may be performed; in the case where it is determined that the third total transmission power is not greater than P _CMAX, S1307 may be performed.

S1307, the terminal device transmits the side line information.

In the embodiment of the application, the terminal equipment judges whether the total power of multi-carrier transmission exceeds P _CMAX of the terminal for the 2 nd time, if so, the resource reselection is carried out on the carrier wave where the SL transmission with the lowest priority is carried out at present or the SL transmission determined by other modes; the terminal device then makes a 3 rd decision again, and if the total number of multi-carrier transmissions exceeds P _CMAX of the terminal, if so, power adjustment is continued for the remaining multi-carriers (i.e., the operation after the 1 st decision is repeated).

Fig. 14 is a flow chart of another communication method according to an embodiment of the present application, as shown in fig. 14, the method includes:

s1401, the terminal device determines that SL multi-carrier transmission is performed, and determines that side line information time domains on multiple carriers at a certain moment at least partially overlap.

S1402, the terminal device determines whether the first total transmission power of all carriers currently is greater than P _CMAX.

In case it is determined that the first total transmission power is greater than P _CMAX, S1403 may be performed; in the case where it is determined that the first total transmission power is not greater than P _CMAX, S1409 may be performed.

S1403, the terminal equipment determines a target carrier from all current carriers and adjusts the transmission power of the carrier.

S1404, the terminal device determines a second total transmission power of all current carriers, and determines whether the second total transmission power is greater than P _CMAX.

In case it is determined that the second total transmission power is greater than P _CMAX, S1405 may be performed; in the case where it is determined that the second total transmission power is not greater than P _CMAX, S1409 may be performed.

S1405, the terminal equipment determines whether the sidestream information on the target carrier meets the resource reselection condition.

In the case that the resource reselection condition is satisfied, S1406 may be performed; in the case where the resource reselection condition is not satisfied, S1407 may be performed.

And S1406, the terminal equipment performs resource reselection on the sidestream information on the target carrier.

S1407, the terminal device discards the transmission target carrier.

After S1406 and S1407, the terminal device may perform S1408.

S1408, the terminal device determines the third total transmission power of all the current carriers, and determines whether the third total transmission power is greater than P _CMAX.

In case it is determined that the third total transmission power is greater than P _CMAX, S1403 may be performed; in the case where it is determined that the third total transmission power is not greater than P _CMAX, S1409 may be performed.

S1409, the terminal equipment sends side line information.

In the embodiment of the application, the 2 nd time judges whether the total power of multi-carrier transmission exceeds P _CMAX of the terminal, if so, the condition judgment of resource reselection is carried out; if the condition of resource reselection is met, carrying out resource reselection on the carrier wave where the SL transmission with the lowest priority is currently carried out or the SL transmission determined by other modes is carried out; and if the resource reselection condition is not met, discarding the current transmission on the carrier wave where the SL is located. And then making a3 rd decision, if the total of the multi-carrier transmissions exceeds P _CMAX of the terminal, if so, continuing to perform power adjustment on the remaining multi-carriers (repeating the operation after the 1 st decision).

For embodiments of the present application where the resource reselection condition is met or not met, the judgment condition may be evaluated from a number of aspects/parameters, including (but not limited to) one or more of the following:

1) Current SL traffic transmission priority;

2) The SL service sends the residual delay Budget (REMAINING PACKET DELAY Budget, PDB) of the data packet;

3) Whether the resources currently sent by the SL have been indicated;

4) The current SL transmission corresponding TB is the initial transmission/retransmission;

5) The number of transmissions of the corresponding TB is transmitted by the current SL;

6) The current SL transmits the remaining number of transmissions of the corresponding TB.

Alternatively, the residual delay budget may be understood as the same as the residual delay described above.

Priority for current SL traffic transmission:

A threshold value may be preset/set, and the priority of transmission on the SL corresponding carrier with the lowest current priority is compared with the threshold value, (the transmission priority of the SL is carried by the priority indication information field carried in the SCI). In some embodiments, 1) SL priority value < preset threshold value, indicating that SL transmission priority is above a preset threshold level (i.e., priority is higher); 2) The SL priority value > the preset threshold value indicates that the SL transmission priority is below a preset threshold level (i.e., the priority is low).

The methods for determining that the SL transmission performs resource reselection or the SL transmission is discarded include the following two methods:

The method comprises the following steps: 1) The SL priority value is less than a preset threshold value, and then, resource reselection is carried out corresponding to the SL transmission;

2) SL priority value > preset threshold value, then the corresponding SL transmission is discarded.

The second method is as follows: 1) SL priority value < preset threshold, then corresponding to this SL transmission discard;

2) SL priority value > preset threshold value, then resource reselection is performed for this SL transmission.

The remaining PDBs are sent for the current SL traffic:

A service data packet corresponding to the data TB transmitted by the current SL corresponds to a residual delay budget (PDB); the corresponding remaining PDBs are checked and if the remaining PDBs >0ms and the minimum processing time for resource (re) selection is met, it is determined that the conditions of the remaining PDBs are met. Under the condition of meeting the residual PDB, carrying out resource reselection; the current SL transmission drops if the remaining PDB condition is not satisfied.

For example: the PDB corresponding to the TB currently transmitted by the SL is 10ms, the current transmission time is 6ms, and then the condition of resource reselection is satisfied, and the terminal needs to finish resource reselection within (6-T _proc) ms and send out a data packet, where T _proc is the minimum processing time of resource (reselection).

Whether the resources for the current SL transmission have been indicated:

Whether the resources currently transmitted by the SL have been indicated may include: whether the resources currently sent by the SL have been indicated by the SCI. The terminal device may determine whether the current SL transmission (including transmission time-frequency resources, etc.) has been indicated or reserved:

Has indicated that: indicating the current SL transmission including time-frequency resource information in the SCI which has been transmitted/received before, then selecting to discard the current transmission without resource reselection; not indicated: the current SL transmission has not been indicated in the SCI that has been transmitted/received, then a resource reselection is performed.

Initial transmission/retransmission of the corresponding TB for the current SL transmission:

The primary transmission often carries important information, and the retransmission improves the reliability through the combination of the receiving end. The terminal equipment can determine whether the current SL sends the initial transmission corresponding to one TB or the retransmission, 1) if the current SL is the initial transmission/the initial transmission of one TB, resource reselection is carried out; 2) If there is a retransmission of one TB, one of the following operations is performed: resource reselection; the transmission is discarded.

The number of transmissions corresponding to the TB for the current SL transmission:

The maximum transmission times (including initial transmission and retransmission) of one TB is Y times, the current SL transmission is the N-th transmission of one TB, and a threshold value M is set, (M is an integer, and M is more than or equal to 0 and less than or equal to Y). The terminal device may perform the following operations in one or two ways:

Mode one: when N is less than M, carrying out resource reselection; when N > M, the transmission is discarded.

Mode two: when N is more than M, carrying out resource reselection; when N < M, the transmission is discarded.

In the case of n=m, this may be included in any of the comparisons described above, i.e., a resource reselection may be performed or a transmission may be discarded.

When the number of transmissions N is calculated, the current transmission may or may not be included.

In one embodiment: the maximum number of transmissions of one TB is 32, the current SL transmission is the nth=1st transmission (primary transmission) of one TB, and the threshold is set to m=2 at this time. And (mode one) N is less than M, and resource reselection is performed.

In another embodiment: the maximum number of transmissions of one TB is 32, the current SL transmission is the nth=5 transmission (5 th retransmission) of one TB, and the threshold is set to m=3 at this time. (mode one) N > M, discard this SL transmission.

Remaining number of transmissions for the corresponding TB for the current SL transmission:

The maximum transmission times (including primary transmission and retransmission) of one TB is Y times, the current SL transmission is the N-th transmission of one TB, the TB has L retransmission opportunities, Y=N+L, a threshold value K is set, (K is an integer, 0 is less than or equal to K is less than or equal to Y); the terminal device may perform the following operations in one or two ways:

mode one: when L is less than K, carrying out resource reselection; when L > K, discard the transmission;

Mode two: when L is more than K, carrying out resource reselection; when L < K, the transmission is discarded.

In the case of l=k, this may be included in any of the comparisons described above, i.e., a resource reselection may be performed or a transmission may be discarded.

When the remaining transmission number L is calculated, the current transmission may or may not be included.

In one embodiment: by way of example only: the maximum number of transmissions of one TB is 10, the current SL transmission is the nth=5 transmission (4 th retransmission) of one TB, l=5 retransmission opportunities remain, the threshold is set to k=3 at this time, and this SL transmission is discarded because L > K.

The following describes the conditions for adjusting the transmission on which carrier/carriers:

At a certain moment, the terminal needs to perform multi-carrier transmission, and in this case, the transmissions on S (S > 1 and is a positive integer) carriers overlap in the time domain, and the total transmission power at this time exceeds P _CMAX, which carrier/carriers need to be adjusted according to a certain condition/factor.

In addition to using comparison of SL transmission priorities as a filtering condition, embodiments of the present application may also consider determining SL transmission on a carrier among multiple carriers using other factors, where the factors include one or more of the following:

1) Residual delay budget (PDB) of SL traffic transmit packets on each carrier;

2) Whether the resources sent by the SL on the respective carriers have been indicated/reserved;

3) The corresponding TB sent by SL on each carrier is primary transmission/retransmission;

4) The SL sends the corresponding TB number of times on each carrier;

5) The SL transmits the remaining number of transmissions of the corresponding TB on each carrier.

The above factors may be determined in combination with the SL transmission priority, or may be used to determine that the SL transmission on a certain carrier is to be power adjusted or to discard the transmission, instead of the SL transmission priority alone as a determination condition.

Fig. 15 is a flow chart of a communication method according to another embodiment of the present application, as shown in fig. 15, the method includes: s1501 to S1503; the steps of S1501 to S1503 may be the same as those of S1401 to S1403.

S1504, the terminal equipment determines a second total transmitting power of all current carriers, and determines whether the second total transmitting power is greater than P _CMAX.

In case it is determined that the second total transmission power is greater than P _CMAX, S1505 may be performed; in case that it is determined that the second total transmission power is not greater than P _CMAX, S1509 may be performed.

S1505, the terminal device discards the transmission target carrier.

In this case, the terminal device may discard the transmission for the carrier on which the currently determined SL is located.

S1506, the terminal device determines the third total transmission power of all the current carriers, and determines whether the third total transmission power is greater than P _CMAX.

In case it is determined that the third total transmission power is greater than P _CMAX, S1503 may be performed; in the case where it is determined that the third total transmission power is not greater than P _CMAX, S1507 may be performed.

S1507, the terminal device transmits the sidestream information.

The factors listed above are described below:

Remaining PDBs for SL transmission on each carrier: and comparing the residual PDB of the data packet sent by the SL on each carrier with the current time domain overlapped. For example, existing S carriers overlap and need to be transmitted, the remaining PDB values corresponding to the respective data packets are compared, the transmission power is adjusted for the SL transmission with the largest remaining PDB value, and then the 3 rd judgment in the figure is performed.

For the case where the remaining PDB values are equal, the terminal may select according to one or more of the following rules:

the SL transmission on one carrier is randomly selected to adjust the transmission power;

Comparing the corresponding SL transmission priority level; for example, selecting the carrier corresponding to the highest or lowest priority;

at least one of the other factors listed above.

Whether the SL transmitted resources on the respective carriers have been indicated/reserved:

The SL transmission on each carrier with the current time domain overlapping is selected to adjust the transmission power of the SL transmission which is not indicated or reserved by the SCI; if there are SL transmissions on multiple carriers without SCI indication/subscription, the terminal may select according to one or more of the following rules:

at least one of the other factors listed above.

The corresponding TB for SL transmission on each carrier is primary/retransmission:

this time of SL transmission on each carrier overlapped in the current time domain, and the transmission power adjustment of TB retransmission during transmission is selected; if there are SL transmit TBs on multiple carriers that are all retransmissions, the terminal may select according to one or more of the following rules:

at least one of the other factors listed above.

Number of transmissions of corresponding TB for SL transmissions on each carrier:

The TB on carrier 1 is the 3 rd transmission, the TB on carrier 2 is the 1 st transmission, and the TB on carrier 3 is the 4 th transmission, then the carrier with the largest number of transmission transmissions is selected for transmission power adjustment, i.e. carrier 3. If there are the same number of transmissions of TBs on multiple carriers, the terminal may select according to one or more of the following rules:

at least one of the other factors listed above.

The remaining number of transmissions for the corresponding TB for SL transmissions on each carrier:

If the TB on carrier 1 has 3 retransmission opportunities, the TB on carrier 2 has 1 retransmission opportunity, and the TB on carrier 3 has 8 retransmission opportunities, then the carrier with the largest remaining retransmission opportunities is selected for transmission power adjustment, or the carrier with the smallest remaining retransmission opportunities is selected for transmission power adjustment. If there are the same number of remaining retransmissions of a TB on multiple carriers, the terminal may select according to one or more of the following rules:

at least one of the other factors listed above.

Fig. 16 is a flow chart of a communication method according to another embodiment of the present application, as shown in fig. 16, the method includes: s1601 and S1602; the steps of S1601 and S1602 may be the same as the steps of S1501 and S1502.

S1603, the terminal equipment determines a target carrier from all current carriers.

S1604, the terminal equipment determines whether the sidestream information on the target carrier meets the resource reselection condition.

In the case where the resource reselection condition is satisfied, S1605 may be performed; in the case where the resource reselection condition is not satisfied, S1606 may be performed.

S1605, the terminal equipment performs resource reselection on the sidestream information on the target carrier.

S1606, the terminal device discards the transmission target carrier.

After S1605 and S1606, the terminal apparatus may perform S1607.

S1607, the terminal device determines a third total transmission power of all current carriers, and determines whether the third total transmission power is greater than P _CMAX.

In the case where it is determined that the third total transmission power is greater than P _CMAX, S1603 may be performed; in case it is determined that the third total transmission power is not greater than P _CMAX, S1608 may be performed.

S1608, the terminal equipment sends side line information.

In the embodiment of the application, the behavior after the 1 st judgment is adjusted, the lowest priority of SL transmission is still found, the corresponding transmission power is not adjusted, the condition judgment is directly entered, and then whether the SL transmission on the carrier triggers resource reselection or discards transmission is determined.

In the embodiment of the present application, at a certain moment, a terminal needs to perform multi-carrier transmission, where S (S > 1 and is a positive integer) carriers are transmitted in a time domain and overlap, and the total power of transmission at this time exceeds P _CMAX, on all the overlapping SL transmission carriers, the corresponding carrier with the lowest SL transmission priority is compared, and whether the condition of resource reselection corresponding to the carrier is met or not is determined, where the determining condition may be evaluated from multiple aspects/parameters, including (but not limited to) one or more of the following items to determine whether to perform resource reselection or discard on the carrier of the SL transmission with the lowest priority:

1) Current SL traffic transmission priority;

2) The SL service transmits the residual delay budget (PDB) of the data packet;

3) Whether the resources currently transmitted by the SL have been indicated/reserved;

After the first judgment, in addition to comparing the SL transmission priorities (existing mechanisms) as the screening conditions, the present embodiment may also consider using other factors to determine the SL transmission on one of the multiple carriers, and perform the operations of adjusting the transmission power or discarding the subsequent transmissions, where the factors include one or more of the following:

1) Residual delay budget (PDB) of SL traffic transmit packets on each carrier;

2) Whether the resources sent by the SL on each carrier have indicated a reservation;

4) The SL sends the corresponding TB number of times on each carrier;

Fig. 17 is a flow chart of a communication method according to still another embodiment of the present application, as shown in fig. 17, the method includes: s1701 to S1705; the steps of S1701 to S1705 may be the same as the steps of S1601 to S1605. In S1704, in the case where the resource reselection condition is not satisfied, S1706 may be performed.

S1706, the terminal device adjusts the sending power of the target carrier.

After S1705 and S1706, the terminal device may perform S1707.

S1707, the terminal equipment determines a second total transmission power of all current carriers, and determines whether the second total transmission power is greater than P _CMAX.

In case it is determined that the second total transmission power is greater than P _CMAX, S1708 may be performed; in case it is determined that the second total transmission power is not greater than P _CMAX, S1710 may be performed.

S1708, the terminal equipment determines a specific carrier from the current carriers and discards and transmits the specific carrier.

Alternatively, the method for determining the specific carrier from the current carrier by the terminal device may be the same as the method for determining the target carrier or may be different from the method for determining the target carrier.

S1709, the terminal device determines a third total transmission power of all current carriers, and determines whether the third total transmission power is greater than P _CMAX.

In case it is determined that the second total transmission power is greater than P _CMAX, S1703 may be performed; in case it is determined that the second total transmission power is not greater than P _CMAX, S1710 may be performed.

S1710, the terminal equipment sends the sidestream information.

The embodiment of the application provides a mechanism for triggering resource reselection according to various conditions/factors when side-link multi-carrier transmission is performed. Firstly, resource reselection is used for replacing SL transmission and discarding, so that not only can each data packet be ensured to be transmitted, but also service continuity can be ensured, and the reliability of the system is improved. In addition, multiple reference factors and judgment conditions are introduced to determine which SL transmission in multiple carriers is subjected to transmission power adjustment, resource reselection or transmission discarding, so that the measurement system of the whole system is more perfect, and from the global point of view of the system, the decision is made on how to ensure that the transmission power does not exceed a limit value, and the successful transmission of the data packet on each carrier is ensured more reliably, thereby ensuring that the system is more complete.

The preferred embodiments of the present application have been described in detail above with reference to the accompanying drawings, but the present application is not limited to the specific details of the above embodiments, and various simple modifications can be made to the technical solution of the present application within the scope of the technical concept of the present application, and all the simple modifications belong to the protection scope of the present application. For example, the specific features described in the above embodiments may be combined in any suitable manner, and in order to avoid unnecessary repetition, various possible combinations are not described further. As another example, any combination of the various embodiments of the present application may be made without departing from the spirit of the present application, which should also be regarded as the disclosure of the present application. For example, on the premise of no conflict, the embodiments described in the present application and/or technical features in the embodiments may be combined with any other embodiments in the prior art, and the technical solutions obtained after combination should also fall into the protection scope of the present application.

It should be further understood that, in the various method embodiments of the present application, the sequence numbers of the foregoing processes do not mean the order of execution, and the order of execution of the processes should be determined by the functions and internal logic of the processes, and should not constitute any limitation on the implementation process of the embodiments of the present application. Furthermore, in the embodiment of the present application, the terms "downstream", "upstream" and "sidestream" are used to indicate a transmission direction of signals or data, where "downstream" is used to indicate that the transmission direction of signals or data is a first direction from a station to a user equipment of a cell, and "upstream" is used to indicate that the transmission direction of signals or data is a second direction from the user equipment of the cell to the station, and "sidestream" is used to indicate that the transmission direction of signals or data is a third direction from the user equipment 1 to the user equipment 2. For example, "downstream signal" means that the transmission direction of the signal is the first direction. In addition, in the embodiment of the present application, the term "and/or" is merely an association relationship describing the association object, which means that three relationships may exist. Specifically, a and/or B may represent: a exists alone, A and B exist together, and B exists alone. In addition, the character "/" herein generally indicates that the front and rear associated objects are an "or" relationship.

Fig. 18 is a schematic structural diagram of a communication device according to an embodiment of the present application, which is applied to a terminal device, as shown in fig. 18, where the communication device 1800 includes:

A determining unit 1801, configured to determine a first total transmission power of M carriers; wherein, M is an integer greater than or equal to 2, and the side information on any one carrier and the side information on at least one carrier at least partially overlap in the time domain;

A reselection unit 1802, configured to reselect resources on the sidestream information on the first carrier when the first total transmission power is greater than a first threshold; the first carrier is included in the M carriers.

In some embodiments, the determining unit 1801 is further configured to determine, when the first total transmission power is greater than the first threshold, a second total transmission power of the M carriers after performing power adjustment on the transmission power of the first carrier;

the reselection unit 1802 is further configured to reselect resources on the sidelink information on the first carrier when the second total transmission power is greater than the first threshold;

the communication device 1800 further includes: a transmitting unit 1803, configured to transmit side row information on the M carriers when the second total transmission power is less than or equal to the first threshold.

In some embodiments, the reselection unit 1802 is further configured to:

And under the condition that the sidestream information on the first carrier meets the resource reselection condition, carrying out resource reselection on the sidestream information on the first carrier.

In some embodiments, the communication device 1800 further comprises: a discarding unit 1804, configured to discard sending the first carrier when the first total sending power is greater than the first threshold and sidestream information on the first carrier does not meet the resource reselection condition.

In some embodiments, the determining unit 1801 is further configured to determine, when the first total transmission power is greater than the first threshold and the sidestream information on the first carrier does not meet the resource reselection condition, a second total transmission power of the M carriers after performing power adjustment on the transmission power of the first carrier;

The discarding unit 1804 is further configured to discard sending the first carrier if the second total sending power is greater than the first threshold;

The sending unit 1803 is further configured to send side information on M-1 carriers other than the first carrier among the M carriers when the second total sending power is less than or equal to the first threshold.

In some embodiments, the determining unit 1801 is further configured to determine to discard a third total transmission power of M-1 carriers other than the first carrier from the M carriers after the first carrier is transmitted;

The sending unit 1803 is further configured to send sidestream information on the M-1 carriers if the third total sending power is less than or equal to the first threshold;

The reselection unit 1802, the discard unit 1804, or the determination unit 1801 is further configured to perform resource reselection on side information on a second carrier of the M-1 carriers, discard sending the second carrier, or adjust sending power of the second carrier when the third total sending power is greater than the first threshold.

In some embodiments, the determining unit 1801 is further configured to determine a fourth total transmission power of M-1 carriers, out of the M carriers, except for the first carrier after performing resource reselection on the sidestream information on the first carrier;

The sending unit 1803 is further configured to send sidestream information on the M-1 carriers if the fourth total sending power is less than or equal to the first threshold;

The reselection unit 1802, the discard unit 1804, or the determination unit 1801 is further configured to perform resource reselection on side information on a third carrier of the M-1 carriers, discard sending the third carrier, or adjust sending power of the third carrier when the fourth total sending power is greater than the first threshold.

In some embodiments, the sidestream information on the first carrier meets the resource reselection condition, and/or the sidestream information on the first carrier does not meet the resource reselection condition, determined based on at least one of: a transmission priority of sidestream information on the first carrier;

The residual time delay of the data packet corresponding to the sidestream information on the first carrier; whether the resource of the sidestream information transmission on the first carrier is indicated; the corresponding transmission block TB of the sidestream information transmission on the first carrier is primary transmission or retransmission; the corresponding TB sending times are sent by the sidestream information on the first carrier; and transmitting the corresponding residual transmission times of the TB by the sidestream information on the first carrier.

In some embodiments, the sidestream information on the first carrier satisfies a resource reselection condition, including at least one of: the transmission priority of the sidestream information on the first carrier is greater than a preset priority; the transmission priority of the sidestream information on the first carrier is smaller than or equal to a preset priority; the residual time delay of the data packet corresponding to the sidestream information on the first carrier is greater than 0 and meets the minimum processing time of resource selection or resource reselection; the resources of the sidestream information transmission on the first carrier are not indicated; a corresponding TB (transport block) for transmitting sidestream information on the first carrier is primary transmission; transmitting corresponding TB (transport block) to retransmission by the sidestream information on the first carrier; the transmission times of the corresponding TB transmitted by the sidestream information on the first carrier wave are smaller than or equal to a first threshold value; the transmission times of the corresponding TB of the sidestream information transmission on the first carrier wave are larger than a first threshold value; the residual transmission times of the corresponding TB transmitted by the sidestream information on the first carrier wave are larger than a second threshold value; and the residual transmission times of the corresponding TB transmitted by the sidestream information on the first carrier wave are smaller than or equal to a second threshold value.

In some embodiments, the first carrier is determined based on at least one of: a transmission priority of sidestream information on the first carrier; the residual time delay of the data packet corresponding to the sidestream information on the first carrier; whether the resource of the sidestream information transmission on the first carrier is indicated; the corresponding TB sent by the sidestream information on the first carrier is primary transmission or retransmission; the corresponding TB sending times are sent by the sidestream information on the first carrier; and transmitting the corresponding residual transmission times of the TB by the sidestream information on the first carrier.

In some embodiments, the first carrier is determined based on at least one of:

Fig. 19 is a schematic structural diagram of another communication apparatus according to an embodiment of the present application, which is applied to a terminal device, as shown in fig. 19, where the communication apparatus 1900 includes:

A determining unit 1901, configured to determine a first total transmission power of the M carriers; wherein, M is an integer greater than or equal to 2, and the side information on any one carrier and the side information on at least one carrier at least partially overlap in the time domain;

The determining unit 1901 is further configured to determine, when the first total transmission power is greater than a first threshold, a first carrier from the M carriers based on at least one of: the method comprises the steps of remaining time delay of a data packet corresponding to the side information on M carriers, whether resources for transmitting the side information on the M carriers are indicated, retransmission or primary transmission of resources corresponding to the side information on the M carriers, the transmission times of a Transport Block (TB) corresponding to the side information on the M carriers, and the remaining transmission times of a TB corresponding to the side information on the M carriers;

and a discarding unit 1902, configured to discard the first carrier.

In some embodiments, the discarding unit 1902 is further configured to discard sending the first carrier if the second total sending power is greater than the first threshold;

The communication apparatus 1900 further includes a transmitting unit 1903 configured to transmit sidestream information on the M carriers if a second total transmission power is less than or equal to the first threshold;

In some embodiments, the sidestream information on the first carrier is determined based on at least one of:

In some embodiments, the determining unit 1901 is further configured to determine a third total transmission power of M-1 carriers out of the M carriers except for the first carrier after discarding to transmit the first carrier;

A transmitting unit 1903, further configured to transmit sidestream information on the M-1 carriers if the third total transmission power is less than or equal to the first threshold;

The communication device 1900 further comprises a reselection unit 1904; the reselection unit 1904 or the discarding unit 1902 or the determining unit 1901 is configured to perform resource reselection on side information on a fourth carrier of the M-1 carriers, discard to transmit the fourth carrier, or adjust the transmission power of the fourth carrier, if the third total transmission power is greater than the first threshold.

It will be appreciated by those skilled in the art that the above description of the communication apparatus according to the embodiments of the present application may be understood with reference to the description of the communication method according to the embodiments of the present application.

Fig. 20 is a schematic block diagram of a terminal device according to an embodiment of the present application. The terminal device 2000 may comprise a processor 2010 and a memory 2020, the memory 2020 being for storing a computer program, the processor 2010 being for invoking and executing the computer program stored in the memory 2020 for performing the communication method described in any of the above embodiments.

Wherein the memory 2020 may be a separate device from the processor 2010 or may be integrated in the processor 2010.

In some embodiments, as shown in fig. 20, the terminal device 2000 may further include a transceiver 2030, and the processor 2010 may control the transceiver 2030 to communicate with other devices, in particular, may transmit information or data to other devices, or receive information or data transmitted by other devices.

Among other things, the transceiver 2030 may include a transmitter and a receiver. The transceiver 2030 may further include antennas, the number of which may be one or more.

The embodiment of the application also provides a computer storage medium, which stores one or more programs, and the one or more programs can be executed by one or more processors to implement the communication method described in any embodiment of the application.

Fig. 21 is a schematic structural view of a chip according to an embodiment of the present application. The chip 2100 shown in fig. 21 includes a processor 2110, and the processor 2110 is used to call and run a computer program stored in the memory, and execute the method described in any of the above embodiments.

In some embodiments, as shown in fig. 21, the chip 2100 may further include a memory 2120. Wherein the processor 2110 may invoke and run a computer program from the memory 2120 to implement the method in the embodiments of the present application.

The memory 2120 may be a separate device from the processor 2110, or may be integrated into the processor 2110.

In some embodiments, the chip 2100 may also include an input interface 2130. The processor 2110 may control the input interface 2130 to communicate with other devices or chips, and in particular, may obtain information or data transmitted by other devices or chips.

In some embodiments, the chip 2100 may further include an output interface 2140. Wherein the processor 2110 may control the output interface 2140 to communicate with other devices or chips, in particular, may output information or data to other devices or chips.

It should be understood that the chips referred to in the embodiments of the present application may also be referred to as system-on-chip chips, or the like.

The embodiment of the application also provides a computer program product, which comprises computer program instructions, wherein the computer program instructions enable a terminal device to execute the communication method in any embodiment.

The embodiment of the application also provides a computer program, which enables the terminal equipment to execute the communication method in any embodiment.

The processor, communication device or chip 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 implemented by integrated logic circuits of hardware in a processor or instructions in software form. The processor, communication device or chip described above may include an integration of any one or more of the following: a general purpose Processor, an Application SPECIFIC INTEGRATED Circuit (ASIC), a digital signal Processor (DIGITAL SIGNAL Processor, DSP), a digital signal processing device (DIGITAL SIGNAL Processing Device, DSPD), a programmable logic device (Programmable Logic Device, PLD), a field programmable gate array (Field Programmable GATE ARRAY, FPGA), a central processing unit (Central Processing Unit, CPU), a graphics Processor (Graphics Processing Unit, GPU), an embedded neural network Processor (neural-network processing units, NPU), a controller, a microcontroller, a microprocessor, a programmable logic device, a discrete gate or transistor logic device, discrete hardware components. The disclosed methods, steps, and logic blocks 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 embodied directly in the execution of a hardware decoding processor, or in the execution of a combination of hardware and software modules in a decoding processor. The software modules may be located in a random access memory, flash memory, read only memory, programmable read only memory, or electrically erasable programmable memory, registers, etc. as well known in the art. The storage medium is located in a memory, and the processor reads the information in the memory and, in combination with its hardware, performs the steps of the above method.

It will be appreciated that the memory or computer storage medium in embodiments of the application can be either volatile memory or nonvolatile memory, or can include both volatile and nonvolatile memory. The nonvolatile Memory may be a Read-Only Memory (ROM), a Programmable ROM (PROM), an Erasable PROM (EPROM), an Electrically Erasable EPROM (EEPROM), or a flash Memory. The volatile memory may be random access memory (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 (STATIC RAM, SRAM), dynamic random access memory (DYNAMIC RAM, DRAM), synchronous Dynamic Random Access Memory (SDRAM), double data rate Synchronous dynamic random access memory (Double DATA RATE SDRAM, DDR SDRAM), enhanced Synchronous dynamic random access memory (ENHANCED SDRAM, ESDRAM), synchronous link dynamic random access memory (SYNCHLINK DRAM, SLDRAM), and Direct memory bus 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 appreciated that the above memory or computer storage medium is exemplary and not intended to be limiting, and for example, the memory in the embodiments of the present application may also be static random access memory (STATIC RAM, SRAM), dynamic random access memory (DYNAMIC RAM, DRAM), synchronous Dynamic Random Access Memory (SDRAM), double data rate synchronous dynamic random access memory (double DATA RATE SDRAM, DDR SDRAM), enhanced synchronous dynamic random access memory (ENHANCED SDRAM, ESDRAM), synchronous link dynamic random access memory (SYNCH LINK DRAM, SLDRAM), direct Rambus RAM (DR RAM), and the like. That is, the memory in embodiments of the present application is intended to comprise, without being limited to, these and any other suitable types of memory.

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 solution. 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 will be clear to those skilled in the art that, for convenience and brevity of description, specific working procedures of the above-described systems, apparatuses and units may refer to corresponding procedures in the foregoing method embodiments, and are not repeated herein.

In the several embodiments provided by the present application, it should be understood that the disclosed systems, devices, and methods may be implemented in other manners. For example, the apparatus embodiments described above are merely illustrative, e.g., the division of the units is merely a logical function division, and there may be additional divisions when actually implemented, e.g., multiple units or components may be combined or integrated into another system, or some features may be omitted or not performed. Alternatively, the coupling or direct coupling or communication connection shown or discussed with each other may be an indirect coupling or communication connection via some interfaces, devices or units, which may be in electrical, mechanical or other form.

The units described as separate units may or may not be physically separate, and units shown 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 may be selected according to actual needs to achieve the purpose of the solution of this embodiment.

In addition, each functional unit in the embodiments of the present application may be integrated in one processing unit, or each unit may exist alone physically, or two or more units may be integrated in 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. Based on this understanding, the technical solution of the present application may be embodied essentially or in a part contributing to the prior art or in a part of the technical solution, in the form of a software product stored in a storage medium, comprising several instructions for causing a computer device (which may be a personal computer, a server, a network device, etc.) 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: a usb disk, a removable hard disk, a Read-Only Memory (ROM), a random access Memory (Random Access Memory, RAM), a magnetic disk, or an optical disk, or other various media capable of storing program codes.

The foregoing is merely illustrative of the present application, and the present application is not limited thereto, and any person skilled in the art will readily recognize that variations or substitutions are within 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 communication, the method comprising:

The terminal equipment determines first total transmission power of M carriers; wherein, M is an integer greater than or equal to 2, and the side information on any one carrier and the side information on at least one carrier at least partially overlap in the time domain;

Under the condition that the first total transmission power is larger than a first threshold value, the terminal equipment reselects resources of sidestream information on a first carrier; the first carrier is included in the M carriers.
The method of claim 1, wherein the performing, by the terminal device, resource reselection of sidestream information on a first carrier if the first total transmit power is greater than a first threshold, comprises:

When the first total transmission power is greater than the first threshold, the terminal device determines second total transmission powers of the M carriers after performing power adjustment on the transmission power of the first carrier;

When the second total sending power is larger than the first threshold value, the terminal equipment reselects resources of sidestream information on the first carrier;

the method further comprises the steps of: and under the condition that the second total sending power is smaller than or equal to the first threshold value, the terminal equipment sends sidestream information on the M carriers.
The method according to claim 1 or 2, wherein the terminal device performs resource reselection on sidestream information on the first carrier, comprising:

And under the condition that the sidestream information on the first carrier wave meets the resource reselection condition, the terminal equipment reselects the resource for the sidestream information on the first carrier wave.
A method according to claim 3, wherein the method further comprises:

And under the condition that the first total transmission power is larger than the first threshold value and the sidestream information on the first carrier wave does not meet the resource reselection condition, the terminal equipment discards and transmits the first carrier wave.
The method according to claim 3 or 4, wherein the method further comprises:

When the first total transmission power is greater than the first threshold and the sidestream information on the first carrier does not meet the resource reselection condition, the terminal device determines second total transmission powers of the M carriers after performing power adjustment on the transmission power of the first carrier;

Discarding, by the terminal device, transmitting the first carrier if the second total transmission power is greater than the first threshold;

And under the condition that the second total sending power is smaller than or equal to the first threshold value, the terminal equipment sends side line information on M-1 carriers except the first carrier in the M carriers.
The method according to claim 4 or 5, wherein after the terminal device discards transmitting the first carrier, the method further comprises:

The terminal equipment determines to discard and send the third total sending power of M-1 carriers except the first carrier in the M carriers;

transmitting sidestream information on the M-1 carriers if the third total transmit power is less than or equal to the first threshold;

And under the condition that the third total sending power is larger than the first threshold value, the terminal equipment performs resource reselection on sidestream information on a second carrier wave in the M-1 carriers, either discards the second carrier wave to send, or adjusts the sending power of the second carrier wave.
The method according to any one of claims 1 to 6, wherein after the terminal device performs resource reselection on sidestream information on the first carrier, the method further comprises:

After the terminal equipment determines that the resource reselection is performed on the sidestream information on the first carrier, the terminal equipment determines a fourth total transmission power of M-1 carriers except the first carrier in the M carriers;

the terminal equipment sends sidestream information on the M-1 carriers under the condition that the fourth total sending power is smaller than or equal to the first threshold value;

And under the condition that the fourth total transmission power is larger than the first threshold value, the terminal equipment performs resource reselection on sidestream information on a third carrier wave in the M-1 carriers, discards the third carrier wave to transmit, or adjusts the transmission power of the third carrier wave.
The method according to any of claims 3 to 7, wherein the sidestream information on the first carrier meets the resource reselection condition and/or the sidestream information on the first carrier does not meet the resource reselection condition, determined based on at least one of:

a transmission priority of sidestream information on the first carrier;

The residual time delay of the data packet corresponding to the sidestream information on the first carrier;

Whether the resource of the sidestream information transmission on the first carrier is indicated;

The corresponding transmission block TB of the sidestream information transmission on the first carrier is primary transmission or retransmission;

the corresponding TB sending times are sent by the sidestream information on the first carrier;

and transmitting the corresponding residual transmission times of the TB by the sidestream information on the first carrier.
The method of claim 3,4 or 7, wherein the sidestream information on the first carrier satisfies a resource reselection condition, comprising at least one of:

the transmission priority of the sidestream information on the first carrier is greater than a preset priority;

the transmission priority of the sidestream information on the first carrier is smaller than or equal to a preset priority;

the residual time delay of the data packet corresponding to the sidestream information on the first carrier is greater than 0 and meets the minimum processing time of resource selection or resource reselection;

The resources of the sidestream information transmission on the first carrier are not indicated;

a corresponding TB (transport block) for transmitting sidestream information on the first carrier is primary transmission;

Transmitting corresponding TB (transport block) to retransmission by the sidestream information on the first carrier;

The transmission times of the corresponding TB transmitted by the sidestream information on the first carrier wave are smaller than or equal to a first threshold value;

The transmission times of the corresponding TB of the sidestream information transmission on the first carrier wave are larger than a first threshold value;

The residual transmission times of the corresponding TB transmitted by the sidestream information on the first carrier wave are larger than a second threshold value;

And the residual transmission times of the corresponding TB transmitted by the sidestream information on the first carrier wave are smaller than or equal to a second threshold value.
The method of any of claims 5 to 7, wherein sidestream information on the first carrier does not satisfy a resource reselection condition, comprising at least one of:

the transmission priority of the sidestream information on the first carrier is smaller than or equal to a preset priority;

the transmission priority of the sidestream information on the first carrier is greater than a preset priority;

The residual time delay of the data packet corresponding to the sidestream information on the first carrier is not more than 0 and/or does not meet the minimum processing time of resource selection or resource reselection;

The resources of sidestream information transmission on the first carrier are indicated;

Transmitting corresponding TB (transport block) to retransmission by the sidestream information on the first carrier;

The transmission times of the corresponding TB of the sidestream information transmission on the first carrier wave are larger than a first threshold value;

The transmission times of the corresponding TB transmitted by the sidestream information on the first carrier wave are smaller than or equal to a first threshold value;

the residual transmission times of the corresponding TB transmitted by the sidestream information on the first carrier wave are smaller than or equal to a second threshold value;

And the residual transmission times of the corresponding TB transmitted by the sidestream information on the first carrier wave are larger than a second threshold value.
The method of any of claims 1 to 10, wherein the first carrier is determined based on at least one of:

a transmission priority of sidestream information on the first carrier;

The residual time delay of the data packet corresponding to the sidestream information on the first carrier;

Whether the resource of the sidestream information transmission on the first carrier is indicated;

The corresponding TB sent by the sidestream information on the first carrier is primary transmission or retransmission;

the corresponding TB sending times are sent by the sidestream information on the first carrier;

and transmitting the corresponding residual transmission times of the TB by the sidestream information on the first carrier.
The method of any of claims 1 to 11, wherein the first carrier is determined based on at least one of:

The transmission priority of the sidestream information on the first carrier is the lowest transmission priority in the sidestream information on the M carriers;

the residual time delay of the data packet corresponding to the side line information on the first carrier is the maximum residual time delay or the minimum residual time delay in the residual time delays of the data packets corresponding to the side line information on the M carriers;

The resources of the sidestream information transmission on the first carrier are resources which are not indicated in the resources of the sidestream information transmission on the M carriers;

the corresponding TB of the sidestream information transmission on the first carrier is a retransmission resource in the resources corresponding to the sidestream information transmission on the M carriers;

The transmission times of the corresponding TB of the sidestream information transmission on the first carrier are the maximum transmission times of the corresponding TB of the sidestream information transmission on the M carriers;

The remaining transmission times of the TBs corresponding to the sidestream information transmission on the first carrier are the maximum transmission times or the minimum transmission times of the remaining transmission times of the TBs corresponding to the sidestream information transmission on the M carriers.
The method according to any of claims 1 to 12, wherein the transmission priority of the sidestream information on the first carrier and/or the transmission priority of the sidestream information on the M carriers is carried by a priority indication information field carried in sidestream control information SCI.
A method of communication, the method comprising:

The terminal equipment determines first total transmission power of M carriers; wherein, M is an integer greater than or equal to 2, and the side information on any one carrier and the side information on at least one carrier at least partially overlap in the time domain;

In the case that the first total transmission power is greater than a first threshold, the terminal device determines a first carrier from the M carriers based on at least one of: the method comprises the steps of remaining time delay of a data packet corresponding to the side information on M carriers, whether resources for transmitting the side information on the M carriers are indicated, retransmission or primary transmission of resources corresponding to the side information on the M carriers, the transmission times of a Transport Block (TB) corresponding to the side information on the M carriers, and the remaining transmission times of a TB corresponding to the side information on the M carriers;

The terminal device discards transmitting the first carrier.
The method of claim 14, wherein the terminal device discarding sending the first carrier comprises: the terminal equipment discards sending the first carrier wave under the condition that the second total sending power is larger than the first threshold value;

the method further comprises the steps of: the terminal equipment sends sidestream information on the M carriers under the condition that the second total sending power is smaller than or equal to the first threshold value;

the second total transmission power is the total transmission power of the M carriers after the transmission power of the first carrier is adjusted.
The method of claim 14 or 15, wherein the sidestream information on the first carrier is determined based on at least one of:

the residual time delay of the data packet corresponding to the side line information on the first carrier is the maximum residual time delay or the minimum residual time delay in the residual time delays of the data packets corresponding to the side line information on the M carriers;

The resources of the sidestream information transmission on the first carrier are resources which are not indicated in the resources of the sidestream information transmission on the M carriers;

the corresponding TB of the sidestream information transmission on the first carrier is a retransmission resource in the resources corresponding to the sidestream information transmission on the M carriers;

the transmission times of the corresponding TB of the sidestream information transmission on the first carrier are the maximum transmission times of the corresponding TB of the sidestream information transmission on the M carriers;

The remaining transmission times of the TBs corresponding to the sidestream information transmission on the first carrier are the maximum transmission times or the minimum transmission times of the remaining transmission times of the TBs corresponding to the sidestream information transmission on the M carriers.
The method according to any of claims 14 to 16, wherein after the terminal device discards transmitting the first carrier, the method further comprises:

The terminal equipment determines to discard and send the third total sending power of M-1 carriers except the first carrier in the M carriers;

transmitting sidestream information on the M-1 carriers if the third total transmit power is less than or equal to the first threshold;

And under the condition that the third total sending power is larger than the first threshold value, the terminal equipment performs resource reselection on sidestream information on a fourth carrier wave in the M-1 carriers, either discards the fourth carrier wave to send, or adjusts the sending power of the fourth carrier wave.
A communication device, the communication device comprising:

A determining unit, configured to determine a first total transmission power of M carriers; wherein, M is an integer greater than or equal to 2, and the side information on any one carrier and the side information on at least one carrier at least partially overlap in the time domain;

A reselection unit, configured to reselect resources on the sidestream information on the first carrier when the first total transmission power is greater than a first threshold; the first carrier is included in the M carriers.
A communication device, the communication device comprising:

A determining unit, configured to determine a first total transmission power of M carriers; wherein, M is an integer greater than or equal to 2, and the side information on any one carrier and the side information on at least one carrier at least partially overlap in the time domain;

The determining unit is further configured to determine, when the first total transmission power is greater than a first threshold, a first carrier from the M carriers based on at least one of: the method comprises the steps of remaining time delay of a data packet corresponding to the side information on M carriers, whether resources for transmitting the side information on the M carriers are indicated, retransmission or primary transmission of resources corresponding to the side information on the M carriers, the transmission times of a Transport Block (TB) corresponding to the side information on the M carriers, and the remaining transmission times of a TB corresponding to the side information on the M carriers;

And the discarding unit is used for discarding the first carrier wave.
A terminal device, comprising: a processor and a memory for storing a computer program, the processor for invoking and running the computer program stored in the memory, performing the method of any of claims 1 to 13; or performing the method of any one of claims 14 to 17.
A chip, comprising: a processor for calling and running a computer program from a memory, causing a terminal device on which the chip is mounted to perform the method of any one of claims 1 to 13, or causing a terminal device on which the chip is mounted to perform the method of any one of claims 14 to 17.
A computer storage medium storing a computer program for causing a terminal device to perform the method of any one of claims 1 to 13 or for causing a terminal device to perform the method of any one of claims 14 to 17.
A computer program product comprising computer program instructions which cause a terminal device to perform the method of any of claims 1 to 13 or which cause a terminal device to perform the method of any of claims 14 to 17.
A computer program causing a terminal device to perform the method of any one of claims 1 to 13 or causing a terminal device to perform the method of any one of claims 14 to 17.