Patent Description:
For technologies related to vehicle communications, including V2X (Vehicle to Everything), and P2X (Pedestrian to Everything), etc. (hereinafter referred to as V2X), a transmitting device may directly communicate with a receiving device via a sidelink. Currently, both LTE (Long Term Evolution) and New Radio (NR) systems support V2X communications, that is, LTE V2X and NR V2X.

The transmitting device in the sidelink may autonomously select time-frequency resources for information transmission based on a sensing result. The sensing includes monitoring SCI, measuring reference signal received power (RSRP) and measuring received signal strength indicator (RSSI). By sensing, resources that have been reserved by other devices may be avoided during resource selection, hence, sidelink transmission collisions with other devices may be avoided, thereby avoiding interference.

It should be noted that the above description of the background art is merely provided for clear and complete explanation of this disclosure and for easy understanding by those skilled in the art. And it should not be understood that the above technical solution is known to those skilled in the art as it is described in the background art of this disclosure.

In a current NR V2X, resource collisions may occur due to a limited sensing range of a terminal equipment (UE), thereby reducing reliability. Therefore, performances of services with higher requirement on reliabilities will be affected. Currently, an enhanced mechanism is proposed to reduce collision probability and increase reliability.

<FIG> is a schematic diagram of an application scenario of the above enhancement mechanism. As shown in <FIG>, UE B is to transmit data to UE A, and there exists UE C near UE A that UE B is unable to sense. In other words, for UE B, UE C is a "hidden terminal". If both UE B and UE C both need to transmit data, as they are unable to sense each other, it will be resulted that resources selected by UE B may overlap with resources selected by UE C, in this way, interference will occur between data transmitted by UE B and UE C to UE A. Hence, the current enhancement mechanism is that UE A learns resource usage of UE C via a sensing process, adds the resource usage of UE C to assistance information and transmits it to UE B, and UE B is able to exclude resource sets occupied by UE C or UEs around UE C detected by UE C during the resource selection process, thereby reducing a probability of collision and increasing the reliability. However, currently no method is proposed of how to determine a resource set sensed within the assistance information and how to transmit the assistance information.

Addressed to at least one of the above problems, embodiments of this disclosure provide an information transmission apparatus according to claim <NUM> and a resource determination apparatus according to claim <NUM>.

The present invention is defined by the appended independent claims to which reference should now be made. Specific embodiments are defined in the dependent claims.

An advantage of the embodiments of this disclosure exists in that the terminal equipment does not determine the resource set sensed in the assistance information or perform processing of transmitting assistance information to the peer terminal equipment according to the priority of the data to be transmitted by the terminal equipment itself, but determines the resource set sensed in the assistance information or performs processing of transmitting assistance information to the peer terminal equipment according to the priority of the data transmitted by the peer terminal equipment determining transmission data resources by using the assistance information. Hence, the resource set sensed in the assistance information may be determined by taking the services transmitted by the peer terminal equipment into account and the assistance information may be transmitted, so that the assistance information may more efficiently assist the peer terminal equipment in transmitting services.

With reference to the following description and drawings, the particular embodiments of this disclosure are disclosed in detail, and the principle of this disclosure and the manners of use are indicated. It should be understood that the scope of the embodiments of this disclosure is not limited thereto, and is defined by the scope of the appended claims.

It should be emphasized that the term "comprise/include" when used in this specification is taken to specify the presence of stated features, integers, steps or components but does not preclude the presence or addition of one or more other features, integers, steps, components or groups thereof.

Elements and features depicted in one drawing or embodiment of the invention may be combined with elements and features depicted in one or more additional drawings or embodiments. Moreover, in the drawings, like reference numerals designate corresponding parts throughout the several views and may be used to designate like or similar parts in more than one embodiments.

These and further aspects and features of this disclosure will be apparent with reference to the following description and attached drawings. In the description and drawings, particular embodiments of the invention have been disclosed in detail as being indicative of some of the ways in which the principles of the invention may be employed, but it is understood that the invention is not limited correspondingly in scope. Rather, the invention is defined by the appended claims.

And communication between devices in a communication system may be performed according to communication protocols at any stage, which may, for example, include but not limited to the following communication protocols: <NUM> (generation), <NUM>, <NUM>, <NUM>, <NUM>, <NUM>, <NUM> and <NUM> and new radio (NR) in the future, etc., and/or other communication protocols that are currently known or will be developed in the future.

In the embodiments of this disclosure, the term "network device", for example, refers to a device in a communication system that accesses a terminal equipment to the communication network and provides services for the terminal equipment. The network device may include but not limited to the following equipment: a base station (BS), an access point (AP), a transmission reception point (TRP), a broadcast transmitter, a mobile management entity (MME), a gateway, a server, a radio network controller (RNC), a base station controller (BSC), etc..

The base station may include but not limited to a node B (NodeB or NB), an evolved node B (eNodeB or eNB), and a <NUM> base station (gNB), etc. Furthermore, it may include a remote radio head (RRH), a remote radio unit (RRU), a relay, or a low-power node (such as a femto, and a pico, etc.). The term "base station" may include some or all of its functions, and each base station may provide communication coverage for a specific geographical area. And a term "cell" may refer to a base station and/or its coverage area, which may be expressed as a serving cell, and may be a macro cell or a pico cell, depending on a context of the term.

In the embodiments of this disclosure, the term "user equipment (UE)" or "terminal equipment (TE) or terminal device" refers to, for example, an equipment accessing to a communication network and receiving network services via a network device. The terminal equipment may be fixed or mobile, and may also be referred to as a mobile station (MS), a terminal, a subscriber station (SS), an access terminal (AT), or a station, etc..

The terminal equipment may include but not limited to the following devices: a cellular phone, a personal digital assistant (PDA), a wireless modem, a wireless communication device, a hand-held device, a machine-type communication device, a lap-top, a cordless telephone, a smart cell phone, a smart watch, and a digital camera, etc..

Moreover, the term "network side" or "network device side" refers to a side of a network, which may be a base station or a core network device, and may include one or more network devices described above. The term "user side" or "terminal side" or "terminal equipment side" refers to a side of a user or a terminal, which may be a UE, and may include one or more terminal equipments described above. "Device" may refer to a network device, or may refer to a terminal equipment.

Scenarios in the embodiments of this disclosure shall be described below by way of examples; however, this disclosure is not limited thereto.

<FIG> is schematic diagram of a communication system of an embodiment of this disclosure, in which a case where terminal equipments and a network device are taken as examples is schematically shown. As shown in <FIG>, the communication system <NUM> may include a network device <NUM> and terminal equipments <NUM>, <NUM>, <NUM>. For the sake of simplicity, an example having only three terminal equipments and one network device is schematically given in <FIG>; however, the embodiments of this disclosure is not limited thereto.

In the embodiments of this disclosure, existing services or services that may be implemented in the future may be performed between the network device <NUM> and the terminal equipments <NUM>, <NUM>. For example, such services may include but not limited to an enhanced mobile broadband (eMBB), massive machine type communication (mMTC), ultra-reliable and low-latency communication (URLLC), and related communications of reduced capability terminal equipments, etc..

It should be noted that <FIG> shows that three terminal equipments <NUM>, <NUM>, <NUM> are all within coverage of the network device <NUM>. However, this disclosure is not limited thereto, and the three terminal equipments <NUM>, <NUM>, <NUM> may not be within the coverage of the network device <NUM>, or one terminal equipment <NUM> is within the coverage of the network device <NUM> and the other terminal equipments <NUM>, <NUM> are outside the coverage of the network device <NUM>.

In the embodiments of this disclosure, sidelink transmission may be performed between the terminal equipments <NUM>, <NUM> and <NUM>. For example, the terminal equipments <NUM>, <NUM> and <NUM> may all perform sidelink transmission within coverage of the network device <NUM> to achieve V2X communications, or they may all perform sidelink transmission outside the coverage of the network device <NUM> to achieve V2X communications, or may perform sidelink transmission to achieve V2X communications when the terminal equipment <NUM> is within the coverage of the network device <NUM> while the terminal equipments <NUM> and <NUM> are outside the coverage of the network device <NUM>.

In the embodiments of this disclosure, the terminal equipment(s) <NUM> and/or <NUM> and/or <NUM> may autonomously select sidelink resources (i.e. in mode <NUM>), in which case the sidelink transmission may be not related to the network device <NUM>, that is, the network device <NUM> is optional. Of course, autonomously selecting sidelink resources (i.e. in mode <NUM>) may be combined with allocating sidelink resources by the network device (i.e. in mode <NUM>) in the embodiment of this disclosure; however, the embodiments of this disclosure is not limited thereto.

In the embodiments of this disclosure, the time unit may be a subframe, a slot or a set containing at least one time domain symbol. The set of at least one time domain symbol may also be referred to as a mini slot or a non-slot. For example, the subframe and slot in the embodiments of this disclosure may be used interchangeably, and "a slot" may also be replaced with "a subframe", and this disclosure is not limited thereto, and it may also be replaced with other time units. In addition, the terms "a time-frequency resource" and "a resource" may be used interchangeably.

In the embodiments of this disclosure, a sidelink shall be described by taking "V2X" or "P2X" as an example; however, this disclosure is not limited thereto, and it is also applicable to other sidelink scenarios than "V2X" or "P2X".

In the following description, without causing confusion, the terms "sidelink" and "V2X" or "P2X" may be interchangeable, the terms "a PSFCH" and "a sidelink feedback channel" may be interchangeable, the terms "a PSCCH" and "a sidelink control channel" or "sidelink control information" may be interchangeable, and the terms "a PSSCH" and "a sidelink data channel" or "sidelink data" may also be interchangeable.

In addition, transmitting or receiving a PSSCH may be understood as transmitting or receiving sidelink data carried by the PSSCH, and transmitting or receiving a PSFCH may be understood as transmitting or receiving sidelink feedback information carried by the PSFCH.

Currently, a terminal equipment may obtain sidelink transmission resources in a process of sensing detection + resource selection, in which sensing may be continuously performed to obtain occupancy of resources in a resource pool. For example, the terminal equipment may estimate resource occupancy in a later period of time (referred to as a selection window) according to resource occupancy in a former period of time (referred to as a sensing window).

For example, the terminal equipment may obtain resource occupancy of a sensing window by detecting sidelink control information (SCI) in an (n-<NUM>)-th to an (n-<NUM>)-th subframes or slots (i.e. sensing windows) and time-frequency resource reference signals at different positions, thereby estimating resource occupancy of an (n+T1)-th to (n+T2)-th subframes or slots (i.e. selection windows). The above sensing includes monitoring SCI, and measuring reference signal received power RSRP, etc. There are many equivalent expressions for monitoring SCI in a time unit, such as monitoring a time unit, receiving SCI in a time unit, detecting SCI in a time unit, and blindly detecting SCI in a time unit, etc. The SCI may be SCI in LTE V2X, or may be 1st stage SCI (SCI format 1A) in NR V2X; however, this disclosure is not limited thereto. The process of sensing detection + resource selection includes:.

Without ambiguity, "exclude", "do not select", "exclude" and "avoid" may be used indiscriminately in the embodiments of this disclosure.

As described in the summary of this disclosure, no method for determining a resource set sensed within assistance information is proposed currently. Address to the above technical problems, embodiments of this disclosure provide a corresponding solution. That is, the embodiments of this disclosure provide an information transmission scheme, wherein when a terminal equipment determines a resource set in assistance information, it may refer to the above-described method for excluding a part of candidate resources in set A in the sensing process, that is, determining the resource set by sending. What is different from the above method is that the priority of the data to be transmitted by the terminal equipment is not used, while a resource set sensed within the assistance information is determined according to a priority of the data transmitted by the peer terminal equipment determining resources for transmitting data by using the assistance information. Hence, the resource set sensed in the assistance information may be determined by taking the services transmitted by the peer terminal equipment into account, so that the assistance information may more efficiently assist the peer terminal equipment in transmitting services. Following description shall be given with reference to an embodiment of a first aspect.

The embodiments of this disclosure provide an information transmission method, which shall be described from a side of a second terminal equipment (hereinafter referred to as a second UE for the convenience of description). For example, the information transmission method may be executed by a physical layer of the second terminal equipment, which shall not be repeated below any further.

<FIG> is a schematic diagram of the information transmission method of the embodiment of this disclosure. As shown in <FIG>, the method includes:.

It should be noted that <FIG> only schematically illustrates the embodiment of this disclosure; however, this disclosure is not limited thereto. For example, an order of execution of the steps may be appropriately adjusted, and furthermore, some other steps may be added, or some steps therein may be reduced. And appropriate variants may be made by those skilled in the art according to the above contents, without being limited to what is contained in <FIG>.

In some embodiments, the first SL data refers to a first SL data packet, transmission of the first SL data packet by the first UE includes initial transmission or retransmission, a priority of the first SL data transmitted by the first UE represents a priority of PSSCHs transmitting the first SL data. The priority is indicated by SCI on a PSCCH related to the PSSCH, and the higher a value of the priority, the lower the priority, and vice versa. For example, the value of the priority may be expressed as <NUM>,<NUM>,<NUM>, etc., and <NUM> means the priority is highest; however, this embodiment is not limited thereto.

In some embodiments, the first SL data may be transmitted by the first UE to the second UE or other UEs; however, this embodiment is not limited thereto.

In some embodiments, that the first transmission priority is determined according to the priority of the first SL data transmitted by the first UE means that the first transmission priority is determined at least according to a priority of the first SL data transmitted by the first UE, that is, it may be determined only according to the priority of the first SL data transmitted by the first UE, and may also be determined according to the priority of the first SL data transmitted by the first UE and priorities of the SL data transmitted by other UEs receiving and using the assistance information.

In some embodiments, when the second UE transmits the assistance information to the first UE and the first UE uses or refers to a second resource set in the assistance information to determine a first candidate resource set for transmitting the first SL data, the first transmission priority is equal to the transmission priority of the first SL data.

In some embodiments, the second UE may not only transmit the assistance information to the first UE, but also transmit the assistance information to other UEs, and the other UEs may also determine candidate resource set for transmitting their respective SL data by using or referring to the second resource set in the assistance information (hereinafter referred to as that the UEs use/refer to the assistance information), that is, the number of UEs using or referring to the assistance information is more than one, and the first transmission priority is determined according to the transmission priority of the first SL data and the transmission priorities of their respective SL data transmitted by the other UEs. For example, the first transmission priority is equal to a highest priority of the transmission priority of the first SL data and the transmission priorities of their respective SL data transmitted by the other UEs.

In some embodiments, the method further includes (not shown in figures, optional):
the second UE transmits the assistance information to a third UE, the second resource set being further used by the third UE to determine a third candidate resource set for transmitting third SL data; wherein the first transmission priority is equal to a higher priority of the transmission priority of the first SL data and a transmission priority of the third SL data. For example, if the priority of the first SL data transmitted by UE1 is <NUM> and a priority of the third SL data transmitted by UE3 is <NUM>, the first transmission priority is <NUM>.

In some embodiments, the method may further include: the second UE transmits the assistance information to a fourth UE, a fifth UE, and so on. The first transmission priority is equal to a highest priority of the transmission priorities of their respective SL data transmitted by the UEs receiving and using/referring to the assistance information, which shall not be described in this embodiment any further.

In some embodiments, the method may further include (optional, not shown in figures):
the second UE receives first SCI transmitted by the first UE, the first SCI being used to indicate the priority of the first SL data transmitted by the first UE.

In some embodiments, the priority of the first SL data transmitted by the first UE may be indicated by the first SCI before a first time of transmission (initial transmission) of the first SL data, or may be indicated by the first SCI after the first time of transmission (initial transmission) of the first SL data.

For example, the first SCI may be in an existing format or a newly-defined format. For example, the priority of the first SL data transmitted by the first UE is indicated by a priority indication field (an information element is expressed as a priority) in the first SCI.

In some embodiments, the first SCI may further be used to trigger transmission of the assistance information, such as triggering the transmission of the assistance information via a triggering field in the first SCI.

In some embodiments, the second UE determines the second resource set by sensing detection. For example, in a process of sensing detection, the second resource set is determined according to the first transmission priority and a third reception priority. In particular, the second UE according to the first transmission priority and the third reception priority, determines whether all or a part of PSSCH resources indicated by second SCI indicating the third reception priority are included in the second resource set. The second UE will detect one or more pieces of second SCI, and for the one or more pieces of second SCI, according to the first transmission priority and third reception priorities indicated by the second SCI, determine whether all or a part of PSSCH resources indicated by each piece of second SCI are included in the second resource set.

<FIG> is a schematic diagram of an implementation of operation <NUM>. As shown in <FIG>, operation <NUM> includes:.

In some embodiments, the second SCI may be SCI (such as the above first SCI) transmitted by the above first UE, and/or SCI transmitted by other UEs, and this embodiment is not limited thereto.

<NUM>: an RSRP measurement result is compared with the RSRP threshold, and when the second SCI is detected and a measurement result of the reference signals to which a PSCCH or PSSCH corresponding to the detected second sidelink control information corresponds is greater than the threshold, all or a part of the PSSCH resources indicated by the detected second SCI is included in the second resource set, or when the second SCI is detected and a measurement result of the reference signals to which a PSCCH or PSSCH corresponding to the detected second sidelink control information corresponds is less than the threshold, all or a part of the PSSCH resources indicated by the detected second SCI is included in the second resource set.

For example, the second UE measures the reference signals to which a PSCCH or PSSCH corresponding to one second sidelink control information corresponds to obtain an RSRP measurement result <NUM>, determines RSRP threshold <NUM> according to the first transmission priority and a third reception priority indicated by the one second SCI, compares RSRP measurement result <NUM> with RSRP threshold <NUM>, and when measurement result <NUM> is greater than threshold <NUM>, includes all or a part of PSSCH resources indicated by the one second SCI_1 in the second resource set; and the second UE measures the reference signals to which a PSCCH or PSSCH corresponding to the other second sidelink control information corresponds to obtain an RSRP measurement result <NUM>, determines RSRP threshold <NUM> according to the first transmission priority and a third reception priority indicated by the other second SCI, compares RSRP measurement result <NUM> with RSRP threshold <NUM>, and when measurement result <NUM> is greater than threshold <NUM>, includes all or a part of PSSCH resources indicated by the other second SCI in the second resource set. The above description is given by taking two pieces of second SCI as examples, and processing modes for one or more cases are similar to what described above, which shall not be enumerated herein any further.

In some embodiments, if the measurement result is less than the threshold, it means that all or a part of the PSSCH resources indicated by the second SCI indicating the third reception priority are recommended resources, i.e. resources that may be taken into account when the first UE determines the first candidate resource set, and the second resource set is a recommended resource set, and if the measurement result is greater than the threshold, it means that all or a part of the PSSCH resources indicated by the second SCI indicating the third reception priority are resources that are not recommended (possibly occupied resources), i.e. resources needing to be excluded when the first UE determines the first candidate resource set, and the second resource set is an excluded resource set.

In some embodiments, the resources indicated by the second SCI include PSSCH resources in the same time unit as current SCI, and/or reserved PSSCH resources to which retransmission corresponds and/or reserved PSSCH resources for transmitting a next period (applied to a scenario of periodic transmission).

In some embodiments, the assistance information may be periodically transmitted, semi-persistently transmitted or aperiodically transmitted. After the second UE receives the first SCI, according to the indication information in the first SCI, it determines such parameters as a resource for transmitting the assistance information, a delay demand and a transmission priority of the assistance information, etc., and transmits the assistance information according to the parameters.

In some embodiments, the transmission priority of the assistance information may be the first transmission priority, and the first transmission priority may be indicated by the first SCI. After the first transmission priority is learnt, i.e. the transmission priority of the assistance information is determined, for example, the second UE may transmit the assistance information, and the SCI on the related PSCCH thereto may indicate the transmission priority of the assistance information.

In some embodiments, the method may further include (optional, not shown in figures): the second UE transmits the assistance information to a fourth UE, and the fourth UE forwards the assistance information to the first UE, which shall be described later in an embodiments of a seventh aspect.

The above implementations only illustrate the embodiment of this disclosure. However, this disclosure is not limited thereto, and appropriate variants may be made on the basis of these implementations. For example, the above implementations may be executed separately, or one or more of them may be executed in a combined manner.

It can be seen from the above embodiments that the terminal equipment does not determine the resource set sensed in the assistance information according to the priority of the data to be transmitted by the terminal equipment itself, but determines the resource set sensed in the assistance information according to the priority of the data transmitted by the peer terminal equipment determining transmission data resources by using the assistance information. Hence, the resource set sensed in the assistance information may be determined by taking the services transmitted by the peer terminal equipment into account, so that the assistance information may more efficiently assist the peer terminal equipment in transmitting services.

The embodiments of this disclosure provide a resource determination method, which shall be described from a side of a first terminal equipment (hereinafter referred to as a first UE for convenience), with repeated parts identical to those in the embodiment of the first aspect being not going to be described herein any further.

<FIG> is a schematic diagram of the resource determination method of the embodiment of this disclosure. As shown in <FIG>, the method includes:.

In some embodiments, reference may be made to the embodiments of the first aspect for particular implementations of the assistance information, the second resource set, the first transmission priority and the transmission priority of the first SL data, and <NUM> corresponds to <NUM>-<NUM> in the embodiments of the first aspect, which shall not repeated herein any further.

In some embodiments, when the second resource set contains recommended resources, the first UE may take the resources in the second resource set into account in determining the first candidate resource set, that is, the resources in the second resource set may be used as the first candidate resources; and when the second resource set contains excluded resources, the first UE does not take the second resource set into account in determining the first candidate resource set, that is, the resources in the second resource set will not be taken as the first candidate resources.

In some embodiments, the method may further include (optional, not shown in figures): the first UE selects a first resource from the first candidate resource set, and transmits the first SL data on the first resource. Reference may be made to relevant technologies, which shall not be repeated herein any further.

In some embodiments, the first UE may transmit the first SL data by broadcast, or may transmit the first SL data by multicast, or may transmit the first SL data by unicast, may transmit the first SL data to the second UE, or may transmit the first SL data to other UEs, and this embodiment is not limited thereto.

It can be seen from the above embodiment that the terminal equipment does not determine the resource set sensed in the assistance information according to the priority of the data to be transmitted by the terminal equipment itself, but determines the resource set sensed in the assistance information according to the priority of the data transmitted by the peer terminal equipment determining transmission data resources by using the assistance information. Hence, the resource set sensed in the assistance information may be determined by taking the services transmitted by the peer terminal equipment into account, so that the assistance information may more efficiently assist the peer terminal equipment in transmitting services.

In LTE V2X and NR V2X, in addition to needing to take the priority of the data to be transmitted of the current UE itself into account in the above-described resource sensing detection process, the priority of the data to be transmitted of the current UE itself needs also to be taken into account in a process of transmitting data/information, the processing including but being not limited to determining a resource for transmitting data/information, congestion control, power control, and determining a priority of transmitting the data/information. The embodiments of this disclosure provide an information transmission scheme, that is, in performing processing of transmitting assistance information to a peer terminal equipment, a priority of a sidelink to be transmitted of the terminal equipment is not used, but the processing of transmitting assistance information to the peer terminal equipment is determined according to a priority of the data transmitted by the peer terminal equipment determining a resource for transmitting data by using the assistance information. Hence, the processing of transmitting the assistance information to the peer terminal equipment may be performed by taking the services transmitted by the peer terminal equipment into account, so that the assistance information may more efficiently assist the peer terminal equipment in transmitting services, which shall be described below with reference to embodiments of a third aspect.

The embodiments of this disclosure provide an information transmission method, which shall be described from a side of a second terminal equipment (hereinafter referred to as a second UE for convenience).

In some embodiments, reference may be made to the embodiments of the first aspect for particular implementations of the assistance information, the first transmission priority and the transmission priority of the first SL data, which shall not be repeated herein any further.

In some embodiments, the processing related to transmitting the assistance information includes but is not limited to determining a resource for transmitting the assistance information, congestion control in transmitting the assistance information, power reduction in transmitting the assistance information, and determining a priority of transmitting the assistance information, which shall be described below respectively.

In some embodiments, the processing is determining the transmission priority of the assistance information. In <NUM>-<NUM>, the transmission priority of the assistance information is determined according to the first transmission priority. For example, it is determined that the transmission priority of the assistance information is the first transmission priority, and the second UE transmits the assistance information to the first UE according to the first transmission priority.

In some embodiments, the processing is determining the resource for transmitting the assistance information, including determining a fourth candidate resource set and selecting resource from the fourth candidate resource set for transmitting the assistance information, and reference may be made to the process of sensing detection+resource selection. <FIG> is a schematic diagram of the resource determination method. As shown in <FIG>, the method includes:.

In some embodiments, based on a capability of the terminal equipment, it is determined that a time of the resource for transmitting the assistance information is a parameter Tproc,<NUM>', and the parameter value is greater than a time parameter Tproc,<NUM> determining the resource for transmission the non-assistance information. For example, compensation may be performed, such as Tproc,<NUM>'= Tproc,<NUM>+X; where, X may be <NUM>,<NUM>. , and a unit is a time unit, and values of X may be different for different subcarrier spacings, for example, the larger the subcarrier spacing, the larger X is.

In some embodiments, the processing is congestion control in transmitting the assistance information. In <NUM>-<NUM>, congestion control is performed according to the first transmission priority or the second transmission priority and a channel busy ratio value obtained in current measurement; wherein the second transmission priority is equal to a higher priority of the first transmission priority and the transmission priority of the assistance information; and the second UE determines to transmit the assistance information to the first UE or not to transmit the assistance information according to a result of the congestion control. <FIG> is a schematic diagram of a method of congestion control. As shown in <FIG>, the method includes:.

where, CR (i) denotes a ratio of the number of subchannels occupied by services corresponding to priority i to the number of configured subchannels within a predetermined period of time. If formula (<NUM>) is satisfied, the assistance information may be transmitted. And if formula (<NUM>) is not satisfied, a data packet to which the assistance information corresponds may be dropped at a current time unit and is not transmitted.

In some embodiments, the method may further include:
<NUM> (optional): the second UE receives resource pool configuration information, the resource pool configuration information including second indication information, the second indication information being used to indicate whether to transmit assistance information.

Furthermore, in <NUM>, the second UE determines to transmit the assistance information to the first UE or not to transmit the assistance information according to the result of the congestion control and the second indication information. When both the congestion control and the second indication information determine to transmit the assistance information, the assistance information is transmitted, and when at least one of the congestion control and the second indication information determines not to transmit the assistance information, the assistance information is not transmitted.

<FIG> is a schematic diagram of a congestion control method. As shown in <FIG>, the method includes:.

In some embodiments, the second mapping table may be looked up according to the CBR obtained by current measurement to determine whether to transmit the assistance information. If a corresponding first indication is ON, the assistance information will be transmitted; otherwise, the assistance information will not be transmitted. Alternatively, if the corresponding first indication is OFF, the second UE may ignore the first SCI transmitted by the first UE.

In some embodiments, the processing is dropping the assistance information or power reduction in transmitting the assistance information. In steps <NUM>-<NUM>, when transmission of the assistance information or transmission of information related to the assistance information temporally overlaps with transmission or reception of other information, whether to drop the assistance information and/or the information related to the assistance information is determined, or whether to perform power reduction on the transmission of the assistance information and/or the information related to the assistance information is determined according to a result of comparison of the first transmission priority or the second transmission priority with transmission or reception priority of the other information, wherein the second transmission priority is equal to a higher priority of the first transmission priority and the transmission priority of the assistance information. For example, when the first/second transmission priority/priorities is/are lower than the transmission priority of the other information, the assistance information is dropped, or the transmission power of the assistance information is reduced. In some embodiments, the transmission of the assistance information or the transmission of the information related to the assistance information includes at least one of transmission of a PSSCH of the assistance information, transmission of a PSFCH carrying feedback information corresponding to the assistance information and transmission of a PUCCH carrying the feedback information corresponding to the assistance information; and the transmission or reception of the other information includes at least one of transmission or reception an SL using LTE wireless access, transmission of uplink data and transmission or reception of a PSFCH carrying other feedback information.

For example, when the transmission of the assistance information using NR wireless access or the transmission of the information related to the assistance information temporally overlaps with the transmission or reception of the SL using LTE wireless access, those with higher priorities are transmitted or received. For example, when the first/second transmission priority/priorities is/are higher than the transmission or reception priority of the SL using LTE wireless access, the transmission of the assistance information or the transmission of the information related to the assistance information is performed.

For example, if the transmission of the PSSCH of the assistance information overlaps with transmission of other uplink data, the one with a higher transmission priority is transmitted and the other is dropped (simultaneous transmission of an uplink (UL) and an SL is supported), or the one with a higher transmission priority is transmitted and transmission power of the one with a lower priority is reduced (simultaneous transmission of an uplink (UL) and an SL is not supported), so that the total transmission power does not exceed a maximum power requirement. The dropping or power reduction may be determined according to a capability of the UE, and this disclosure is not limited thereto.

For example, when the transmission of the PSFCH carrying the feedback information of the assistance information overlaps with the transmission of other uplink data, it is further needed to determine whether the corresponding PUCCH or PUSCH is configured with priority <NUM> and whether a corresponding priority of a PSSCH with a highest priority in the PSFCH is higher than a threshold, and determines whether to transmit the PSFCH or the other uplink data according to a determination result.

For example, if the transmission of the PSFCH carrying the feedback information of the assistance information overlaps with reception of other PSFCHs, a PSFCH with a higher priority will be selected for transmission or reception. For example, when the first/second transmission priority/priorities is/are higher than priorities of the other PSFCHs, the PSFCH is transmitted.

For example, if the transmission of the PSFCH carrying the feedback information of the assistance information overlaps with the transmission of the other PSFCHs, when power is limited (that is, the sum of transmission power of all PSFCHs is greater than maximum transmission power of the terminal equipment), N (greater than or equal to <NUM>) PSFCHs with higher priorities are select for transmission. For example, when the first/second transmission priority/priorities is/are higher than priorities of the other PSFCHs, the assistance information is transmitted, and when the first/second transmission priority/priorities is/are lower than transmission priorities of other N PCFCHs, the assistance information is dropped.

For example, if the transmission of the PUCCH carrying the feedback information of the assistance information overlaps with transmission of other sidelink data, the one with a higher priority is transmitted, and the other is dropped.

Scenarios of overlapping shall not be enumerated herein any further, and reference may be made to section <NUM>. <NUM> of 3GPP standard TS38.

It can be seen from the above embodiments that in performing processing of transmitting the assistance information to the peer terminal equipment, the priority of the sidelink to be transmitted of the terminal equipment is not used, but performing processing of transmitting the assistance information to the peer terminal equipment is determined according to the priority of the data transmitted by the peer terminal equipment determining the resource for transmitting data by using the assistance information. Hence, the services transmitted by the peer terminal equipment may be taken into account to perform the processing of transmitting the assistance information to the peer terminal equipment, so that the assistance information may more effectively assist the peer terminal equipment in transmitting services.

The embodiments of this disclosure provide an information transmission method, which shall be described from a side of a second terminal equipment (hereinafter referred to as a second UE for the convenience of description). What is different from the embodiments of the first aspect is that a first transmission priority is configured by a higher layer or is preconfigured, rather than determined according to the priority of the first sidelink data transmitted by the first UE, with repeated parts identical to those in the embodiments of the first aspect being not going to be described herein any further.

In some embodiments, the first transmission priority may be configured in resource pool configuration, or may be configured in radio resource control signaling, or may be preconfigured, thereby solving a problem of how to generate the assistance information in a scenario where no triggering signaling (such as SCI) triggers transmission of the assistance information.

The embodiments of this disclosure provide a resource determination method, which shall be described from a side of a first terminal equipment (hereinafter referred to as a first UE for the convenience of description). What is different from the embodiments of the second aspect is that a first transmission priority is configured by a higher layer or is preconfigured, rather than determined according to the priority of the first sidelink data transmitted by the first UE, with repeated parts identical to those in the embodiment of the second aspect being not going to be described herein any further.

The embodiments of this disclosure provide a resource determination method, which shall be described from a side of a second terminal equipment (hereinafter referred to as a second UE for convenience of description). What is different from the embodiments of the third aspect is that a first transmission priority is configured by a higher layer or is preconfigured, rather than determined according to the priority of the first sidelink data transmitted by the first UE, with repeated parts identical to those in the embodiments of the third aspect being not going to be described herein any further.

In some embodiments, the first transmission priority may be configured in resource pool configuration, or may be configured in radio resource control signaling, or may be preconfigured, thereby solving a problem of how to transmit assistance information to a peer terminal equipment in a scenario where no triggering signaling (such as SCI) triggers transmission of the assistance information.

The embodiments of this disclosure provide an information transmission method, which shall be described from a side of a fourth terminal equipment (hereinafter referred to as a fourth UE for the convenience of description). Since a link channel is in bad condition or a first UE is transmitting (transmission and reception conflicts are occurred due to that the sidelink UE is half-duplex), the first UE does not receive the assistance information transmitted by the second UE. Therefore, in order to improve reliability, the assistance information may be forwarded by means of a fourth UE, that is, the second UE may further transmit the assistance information to the fourth UE, and the fourth UE forwards the assistance information to the first UE.

<FIG> is a schematic diagram of the information transmission method. As shown in <FIG>, the method includes:.

In some embodiments, reference may be made to the embodiments of the first aspect for particular implementations of the assistance information, the second resource set, the first transmission priority and the transmission priority of the first LS data, and reference may be made to <NUM> for <NUM>, which shall not be repeated herein any further.

It can be seen from the above embodiments that when the first UE does not receive the assistance information, the assistance information may be forwarded by means of the fourth, thereby improving reliability.

The embodiments of this disclosure provide an information transmission apparatus. The apparatus may be, for example, a terminal equipment, or may be one or more components or assemblies configured in a terminal equipment, with contents identical to those in the embodiments of the first aspect being not going to be described herein any further.

<FIG> is a schematic diagram of the information transmission apparatus of the embodiment of this disclosure. As shown in <FIG>, the information transmission apparatus <NUM> includes:.

In some embodiments, reference may be made to the embodiments of the first aspect for particular implementations of the assistance information, the second resource set, the first SL data, the first transmission priority and the transmission priority of the first SL data, and implementations of the first determining unit <NUM> and the first transmitting unit <NUM> correspond to <NUM>-<NUM> in the embodiment of the first aspect, which shall not be repeated herein any further.

In some embodiments, the first transmitting unit <NUM> may further be configured to transmit the assistance information to the third UE, and the second resource set is further used for the third UE to determine a third candidate resource set for transmitting third SL data, and the first transmission priority is equal to a higher priority of the transmission priority of the first SL data and the transmission priority of the third SL data.

In some embodiments, the first transmitting unit <NUM> may further be configured to transmit the assistance information to the fourth UE, a fifth UE, and so on, and the first transmission priority is equal to a highest priority in transmission priorities of respective SL data of UEs receiving and using/referring to the assistance information, which shall not be repeated herein any further.

In some embodiments, the apparatus may further include (optional, not shown in figures):
a first receiving unit configured to receive first SCI transmitted by the first UE, the first SCI being used to indicate a priority of the first sidelink data transmitted by the first UE, and reference may be made to the embodiment of the first aspect for implementation thereof, which shall not be repeated herein any further.

In some embodiments, the first SCI may further be used to trigger transmission of the assistance information, and the transmission priority of the assistance information may be the first transmission priority.

In some embodiments, the first determining unit <NUM> determines the second resource set according to the first transmission priority in a process of sensing detection. For example, the first determining unit <NUM> determines whether a part or all of PSSCH resources indicated by second SCI indicating a third reception priority are contained in the second resource set according to the first transmission priority and the third reception priority. <FIG> is a schematic diagram of a structure of the first determining unit <NUM>. As shown in <FIG>, the first determining unit <NUM> includes:.

In some embodiments, reference may be made to <NUM>-<NUM> in the embodiments of the first aspect for implementations of the first detecting module <NUM>, the first determining module <NUM> and the second determining module <NUM>, which shall not be repeated here any further.

In some embodiments, the first transmitting unit <NUM> may further transmit the assistance information to a fourth UE, and the fourth UE forwards the assistance information to the first UE.

It should be noted that the components or modules related to this disclosure are only described above. However, this disclosure is not limited thereto, and the information transmission apparatus <NUM> may further include other components or modules, and reference may be made to related techniques for particulars of these components or modules.

Furthermore, for the sake of simplicity, connection relationships between the components or modules or signal profiles thereof are only illustrated in <FIG>. However, it should be understood by those skilled in the art that such related techniques as bus connection, etc., may be adopted. And the above components or modules may be implemented by hardware, such as a processor, a memory, a transmitter, and a receiver, etc., which are not limited in the embodiment of this disclosure.

The embodiments of this disclosure provide a resource determination apparatus. The apparatus may be, for example, a terminal equipment, or may be one or more components or assemblies configured in a terminal equipment, with contents identical to those in the embodiments of the second aspect being not going to be described herein any further.

<FIG> is a schematic diagram of the resource determination apparatus of the embodiment of this disclosure. As shown in <FIG>, the resource determination apparatus <NUM> includes:.

In some embodiments, reference may be made to the embodiments of the first aspect for particular implementations of the assistance information, the second resource set, the first transmission priority and the transmission priority of the first SL data, and the second receiving unit <NUM> and the second determining unit <NUM> correspond to <NUM>-<NUM> in the embodiments of the second aspect, which shall not be repeated herein any further.

In some embodiments, the second determining unit <NUM> may further select a resource for transmitting the first SL data from the first candidate resource set, and the apparatus may further include (optional, not shown in figures) a third transmitting unit configured to transmit the first SL data. The third transmitting unit may transmit the first SL data by broadcast, or may transmit the first SL data by multicast, or may transmit the first SL data by unicast, or may transmit the first SL data to the second UE, or may transmit the first SL data to other UEs, and this embodiment is not limited thereto.

The embodiments of this disclosure provide an information transmission apparatus. The apparatus may be, for example, a terminal equipment, or may be one or more components or assemblies configured in a terminal equipment, with contents identical to those in the embodiments of the third aspect being not going to be described herein any further.

In some embodiments, reference may be made to the embodiments of the first aspect for particular implementations of the assistance information, the first transmission priority and the transmission priority of the first SL data, and the first processing unit <NUM> and the second processing unit <NUM> correspond to <NUM>-<NUM>, which shall not be repeated herein any further.

In some embodiments, the processing related to transmitting the assistance information includes but is not limited to determining a resource for transmitting the assistance information, congestion control in transmitting the assistance information, power control in transmitting the assistance information and determining a priority of transmitting the assistance information, which shall be respectively described below.

In some embodiments, the processing is determining the transmission priority of the assistance information, and the first processing unit <NUM> determines the transmission priority of the assistance information according to the first transmission priority. For example, it is determined that the transmission priority of the assistance information is the first transmission priority, and the second processing unit <NUM> transmits the assistance information to the first UE according to the first transmission priority.

In some embodiments, the processing is determining the resource for transmitting the assistance information, including determining a fourth candidate resource set and resource selected from the fourth candidate resource set for transmitting the assistance information, and reference may be made to the process of sensing detection+resource selection. <FIG> is a schematic diagram of the first processing unit <NUM> in the embodiment of this disclosure. As shown in <FIG>, the first processing unit <NUM> includes:.

Reference may be made to <NUM>-<NUM> in the embodiments of the third aspect for the processing of the second detecting module <NUM>, the third determining module <NUM>, the fourth determining module <NUM> and the selecting module <NUM>, which shall not be repeated herein any further.

In some embodiments, the processing is congestion control in transmitting the assistance information. The first processing unit <NUM> performs congestion control according to the first transmission priority or the second transmission priority and a channel busy ratio value obtained in current measurement; wherein the second transmission priority is equal to a higher priority of the first transmission priority and the transmission priority of the assistance information; and the second transmitting unit <NUM> determines to transmit the assistance information to the first UE or not to transmit the assistance information according to a result of the congestion control. <FIG> is a schematic diagram of a structure of the first processing unit <NUM> of the embodiment of this disclosure. As shown in <FIG>, the first processing unit <NUM> includes:.

The fifth determining module <NUM>, the controlling module <NUM> and the receiving module <NUM> correspond to <NUM>-<NUM> in the embodiment of the third aspect, which shall not described herein any further.

Furthermore, the second processing unit <NUM> determines whether to transmit the assistance information to the first UE or not to transmit the assistance information according to a result of the congestion control and the second indication information. When both the congestion control and the second indication information determine to transmit the assistance information, the second processing unit <NUM> transmits the assistance information, and when at least one of the congestion control and the second indication information determines not to transmit the assistance information, the second processing unit <NUM> does not transmit the assistance information.

<FIG> is another schematic diagram of the structure of the first processing unit <NUM> of the embodiment of this disclosure. As shown in <FIG>, the first processing unit <NUM> includes:.

The sixth determining module <NUM> and the seventh determining module <NUM> correspond to <NUM>-<NUM> in the embodiments of the third aspect, which shall not be repeated herein any further.

In some embodiments, the processing is dropping the assistance information or power reduction in transmitting the assistance information, and when transmission of the assistance information or transmission or reception of information related to the assistance information temporally overlaps with transmission or reception of other information, the first processing unit <NUM> determines whether to drop the assistance information and/or the information related to the assistance information, or whether to perform power reduction on the transmission of the assistance information and/or the information related to the assistance information according to a result of comparison of the first transmission priority or the second transmission priority with transmission priority of the other information, wherein the second transmission priority is equal to a higher priority in the first transmission priority and the transmission priority of the assistance information. For example, when the first/second transmission priority/priorities is/are lower than the transmission priority of the other information, the second processing unit <NUM> drops the assistance information, or reduces the transmission power of the assistance information.

In some embodiments, the transmission of the assistance information or the transmission of the information related to the assistance information includes at least one of transmission of a PSSCH of the assistance information, transmission of a PSFCH carrying feedback information corresponding to the assistance information and transmission of a PUCCH carrying the feedback information corresponding to the assistance information; and the transmission or reception of the other information includes at least one of transmission or reception an SL using LTE wireless access, transmission of uplink data and transmission or reception of a PSFCH carrying other feedback information.

The embodiments of the first aspect and the third aspect may be implemented separately or in a combined manner, and the embodiments of this disclosure are not limited thereto.

The embodiments of the eighth aspect and the tenth aspect may be implemented separately or in a combined manner, and the embodiments of this disclosure are not limited thereto.

The embodiments of this disclosure provide an information transmission apparatus, with a difference from the embodiments of the eighth aspect being that the first transmission priority is configured by a higher layer or is preconfigured, rather than being determined according to the priority of first sidelink data transmitted by the first UE. Repeated parts identical to those in the embodiment of the eighth aspect shall not be repeated herein any further.

The embodiments of this disclosure provide a resource determination method, with a difference from the embodiments of the ninth aspect being that the first transmission priority is configured by a higher layer or is preconfigured, rather than being determined according to the priority of the first sidelink data transmitted by the first UE. Repeated parts identical to those in the embodiment of the ninth aspect shall not be repeated herein any further.

The embodiments of this disclosure provide an information transmission method, with a difference from the embodiments of the tenth aspect being that the first transmission priority is configured by a higher layer or is preconfigured, rather than being determined according to the priority of the first sidelink data transmitted by the first UE. Repeated parts identical to those in the embodiment of the tenth aspect shall not be repeated herein any further.

In some embodiments, the first transmission priority may be configured in resource pool configuration, or may be configured in radio resource control signaling, or may be preconfigured, thereby solving a problem of processing of how to transmit assistance information to a peer terminal equipment in a scenario where no triggering signaling (such as SCI) triggers transmission of the assistance information.

The embodiments of this disclosure provide an information transmission apparatus. The apparatus may be, for example, a terminal equipment, or may be one or more components or assemblies configured in a terminal equipment, with contents identical to those in the embodiment of the seven aspect being not going to be described herein any further.

In some embodiments, reference may be made to the embodiments of the first aspect for implementations of the assistance information, the second resource set, the first transmission priority and the transmission priority of the first SL data, and reference may be made to <NUM>-<NUM> in the seventh aspect for the third receiving unit <NUM> and the forwarding unit <NUM>, with repeated parts being not going to be described herein any further.

It can be seen from the above embodiment that when the first UE is busy and is unable to receive the assistance information, the assistance information is forwarded by means of the fourth UE, thereby improving the reliability.

The embodiments of this disclosure provide a communication system, and reference may be made to <FIG>, with contents identical to those in the embodiments of the first to the fourteenth aspects being not going to be described herein any further. The communication system <NUM> may at least include a second UE <NUM> and a first UE <NUM>.

In some embodiments, the second UE <NUM> determines a second resource set according to a first transmission priority, transmits assistance information to a first UE, the assistance information including time frequency domain information of resources in the second resource set, and the second resource set being used by the first UE for determining a first candidate resource set for transmitting first sidelink (SL) data, and the first transmission priority being determined according to a priority of the first sidelink data transmitted by the first UE; and the first UE <NUM> receives the assistance information, and determines the first candidate resource set for transmitting the second sidelink data according to the second resource set.

In some embodiments, according to the first transmission priority, the second UE <NUM> performs processing related to transmission of the assistance information to the first UE <NUM>, and according to a result of the processing, transmits the assistance information to the first UE <NUM>, or does not transmit the assistance information, or performs power reduction on the transmission of the assistance information.

Alternatively, the communication system <NUM> may further include a fourth UE <NUM>.

In some embodiments, the second UE <NUM> may further transmit the assistance information to the fourth UE <NUM>, the fourth UE <NUM> forwards the assistance information to the first UE <NUM>, and the first UE <NUM> may further select a resource from the first candidate resource set to transmit the first SL data, such as by broadcast, or multicast or unicast, for example, it may transmit the assistance information to the second UE <NUM>; however, this embodiment is not limited thereto.

In some embodiments, the first priority may be configured by a higher layer, or may be preconfigured.

The embodiment of this disclosure further provides a terminal equipment; however, this disclosure is not limited thereto, and it may also be another equipment.

<FIG> is a schematic diagram of the terminal equipment of the embodiment of this disclosure. As shown in <FIG>, the terminal equipment <NUM> may include a processor <NUM> and a memory <NUM>, the memory <NUM> storing data and a program and being coupled to the processor <NUM>. It should be noted that this figure is illustrative only, and other types of structures may also be used, so as to supplement or replace this structure and achieve a telecommunications function or other functions.

For example, the processor <NUM> may be configured to execute a program to carry out the information transmission methods/resource determination methods as described in the embodiments of the first to seventh aspects. For example, the processor <NUM> is applicable to a second UE, and may be configured to perform the following control: determining a second resource set according to a first transmission priority; and transmitting assistance information to a first UE, the assistance information including time frequency domain information of resources in the second resource set, and the second resource set being used by the first UE for determining a first candidate resource set for transmitting first sidelink (SL) data, wherein the first transmission priority is determined according to a priority of the first sidelink data transmitted by the first UE.

For example, the processor <NUM> is applicable to a first UE, and may be configured to perform the following control: receiving assistance information transmitted by a second UE; wherein the assistance information includes time frequency domain information of resources in a second resource set, the second resource set being determined by the second UE according to a first transmission priority, the first transmission priority being determined according a priority of first sidelink data transmitted by the first UE; and according to the second resource set, determining a first candidate resource set for transmitting the first sidelink data.

For example, the processor <NUM> is applicable to a second UE, and may be configured to perform the following control: performing processing related to transmitting assistance information to a first UE according to a first transmission priority, wherein the assistance information is used by the first UE for determining a first candidate resource set for transmitting first sidelink data, and the first transmission priority is determined according to a priority of the first sidelink data transmitted by the first UE; and according to a result of processing, transmitting the assistance information to the first UE, or not transmitting the assistance information, or performing power reduction on transmission of the assistance information.

For example, the processor <NUM> is applicable to a fourth UE, and may be configured to perform the following control: receiving assistance information transmitted by a second UE, wherein the assistance information includes time-frequency domain information of resources in a second resource set, the second resource set being determined by the second UE according to a first transmission priority, the first transmission priority being determined according to a priority of first sidelink data transmitted by the first UE; and transmitting the assistance information to the first UE.

In some embodiments, the above first transmission priority may also be configured by a higher layer, or may be preconfigured.

As shown in <FIG>, the terminal equipment <NUM> may further include a communication module <NUM>, an input unit <NUM>, a display <NUM>, and a power supply <NUM>; wherein functions of the above components are similar to those in the prior art, which shall not be described herein any further. It should be noted that the terminal equipment <NUM> does not necessarily include all the parts shown in <FIG>, and the above components are not necessary. Furthermore, the terminal equipment <NUM> may include parts not shown in <FIG>, and the prior art may be referred to.

An embodiment of this disclosure provides a computer program, which, when executed in a terminal equipment, will cause the terminal equipment to carry out the information transmission method as described in the embodiments of the first and the third to seventh aspects.

An embodiment of this disclosure provides a storage medium, including a computer program, which will cause a terminal equipment to carry out the information transmission method as described in the embodiments of the first and the third to seventh aspects.

An embodiment of this disclosure provides a computer program, which, when executed in a terminal equipment, will cause the terminal equipment to carry out the resource determination method as described in the embodiment of the second aspect.

An embodiment of this disclosure provides a storage medium, including a computer program, which will cause a terminal equipment to carry out the resource determination method as described in the embodiment of the second aspect.

The above apparatuses and methods of this disclosure may be implemented by hardware, or by hardware in combination with software. This disclosure relates to such a computer-readable program that when the program is executed by a logic device, the logic device is enabled to carry out the apparatus or components as described above, or to carry out the methods or steps as described above. This disclosure also relates to a storage medium for storing the above program, such as a hard disk, a floppy disk, a CD, a DVD, and a flash memory, etc..

The methods/apparatuses described with reference to the embodiments of this disclosure may be directly embodied as hardware, software modules executed by a processor, or a combination thereof. For example, one or more functional block diagrams and/or one or more combinations of the functional block diagrams shown in the drawings may either correspond to software modules of procedures of a computer program, or correspond to hardware modules. Such software modules may respectively correspond to the steps shown in the drawings. And the hardware module, for example, may be carried out by firming the soft modules by using a field programmable gate array (FPGA).

One or more functional blocks and/or one or more combinations of the functional blocks in the drawings may be realized as a universal processor, a digital signal processor (DSP), an application-specific integrated circuit (ASIC), a field programmable gate array (FPGA) or other programmable logic devices, discrete gate or transistor logic devices, discrete hardware component or any appropriate combinations thereof carrying out the functions described in this application. And the one or more functional block diagrams and/or one or more combinations of the functional block diagrams in the drawings may also be realized as a combination of computing equipment, such as a combination of a DSP and a microprocessor, multiple processors, one or more microprocessors in communication combination with a DSP, or any other such configuration.

Claim 1:
An information transmission apparatus (<NUM>),
applicable to a second terminal equipment, wherein the apparatus comprises:
a receiver configured to receive first sidelink control information transmitted by a first terminal equipment, the first sidelink control information being used to indicate a priority of first sidelink data transmitted by the first terminal equipment, and the first sidelink control information being further used to trigger transmission of assistance information;
a processor (<NUM>) configured to determine a first transmission priority according to the priority of first sidelink data transmitted by the first terminal equipment, and determine a second resource set according to the first transmission priority; and
a transmitter (<NUM>) configured to transmit assistance information to the first terminal equipment, the assistance information including time frequency domain information of resources in the second resource set, the second resource set being used by the first terminal equipment for determining a first candidate resource set for transmitting first sidelink data.