Information Determination Method and Apparatus, Computer Program, and Electronic Apparatus

Abstract

Embodiments of the present disclosure provide an information determination method, an apparatus, a storage medium, and an electronic device. This information determination method includes determining the number N2 of physical sidelink feedback channels PSFCHs transmitted simultaneously by a terminal device UE in one PSFCH occasion, the transmission power of the PSFCHs, and the common resource blocks corresponding to the N2 PSFCHs and the transmission power of the common resource blocks, and determining whether N2 is equal to N1, or determining whether the N2 is equal to Nmax, or determining N2 PSFCHs from among the N1 PSFCHs according to the priority of the PSFCHs, and determining whether the transmission power of the PSFCH is the required power of the PSFCH, or determining that the transmission power of the PSFCH is X times the maximum power of the UE, or determining that the transmission power of the PSFCH is the maximum or minimum value of the required power and X times the maximum power of the UE, and transmitting the determined N2 PSFCHs and the common resource blocks corresponding to the N2 PSFCHs, and determining that the transmission power of the common resource block is the required power of the common resource block.

Description

Technical Field

[0001] [Cross - Reference to Related Applications] This disclosure claims priority based on a Chinese patent application filed with the China National Intellectual Property Administration on August 1, 2022, with an application number of 202210916786.6 and an invention title of "Information Determination Method and Apparatus, Storage Medium, and Electronic Device", the entire content of which is incorporated herein by reference. [Technical Field] Embodiments of the present disclosure relate to the field of communications, and more specifically, to an information determination method and apparatus, a storage medium, and an electronic device.

Background Art

[0002] According to the current discussions in the standard meetings, in order for the Physical Sidelink Feedback Channel (simply referred to as PSFCH) to meet the requirements of the occupied channel bandwidth (simply referred to as OCB), simply using the interlace resource block (simply referred to as IRB) structure will consume a large amount of frequency domain resources. For example, at least 10 PRBs are included in one IRB, and ultimately the number of PSFCHs that can be transmitted in one PSFCH occasion will be reduced, which will affect the capacity of the PSFCH. One of the current countermeasures is to divide the frequency domain resources on the PSFCH occasion into two types: common RB resources and resources for carrying feedback information. In the case of common RB resources, if multiple UEs transmit PSFCHs on that occasion, these UEs will occupy the same common RB resources and transmit signals to meet the OCB requirements. However, regardless of the number of UEs transmitting simultaneously, the overhead for meeting the OCB requirements is only one, that is, the common RB resources. In the case of resources for carrying feedback information, generally through resource mapping, different UEs can use different resources to feedback their respective information, which is the same as the conventional PSFCH resources. By combining these two types of resources, the overhead of the OCB can be appropriately controlled, and at the same time, it can be avoided from excessively affecting the capacity of the PSFCH.

[0003] However, there are still many problems to be solved in the above method. First, the current power control of the PSFCH is not applied to the above process, and the above technology does not consider the case where the resource pool frequency domain includes multiple channels (multiple channels or multiple RB sets), so it is necessary to design the relevant process.

[0004] Direct connect communication is also called sidelink (SL) communication, and hereinafter, all direct connect communications are referred to using SL communication. SL communication is currently carried out in a licensed frequency band or a dedicated frequency band. For example, vehicle-to-anything (V2X) communication can be carried out in a frequency band dedicated to vehicle-to-anything. In recent years, with the development of SL communication, the need to perform SL transmission in the conventional unlicensed band has been increasing. Before performing SL transmission in the unlicensed frequency band, in order to avoid interference with devices of other systems according to the relevant frequency band usage specifications, it is generally necessary to perform a channel access process called a listen before talk (LBT) process. Generally, if it is determined that the channel resource is idle (LBT is successful) within the detection time length corresponding to the LBT process, the UE can continue transmission; otherwise, the UE has to abandon the transmission.

[0005] In some regions, to occupy an unlicensed spectrum, it is necessary to meet the requirement of the channel occupancy bandwidth (OCB). That is, when a device accesses and transmits on one channel, the bandwidth of the transmitted signal must occupy at least 80% of the bandwidth of that channel. For example, when one channel is 20 MHz, generally, the transmitted signal is required to span at least 16 MHz in the frequency domain. For some signals / channels of SL, it is also necessary to meet the OCB requirement, which includes the physical sidelink feedback channel (simply referred to as PSFCH). PSFCH is generally only used to carry very few bits, and the occupied bandwidth is very small, for example, one physical resource block (simply referred to as PRB). For PSFCH, it is necessary to change its transmission bandwidth to meet the OCB requirement, and its power control also needs to be modified to correspond to the new transmission bandwidth. Also, considering that the UE can transmit multiple PSFCHs on multiple channels, it is necessary to comprehensively design the PSFCH power control solution on multiple channels.

Summary of the Invention

Problems to be Solved by the Invention

[0006] Embodiments of the present disclosure provide an information determination method, an apparatus, a storage medium, and an electronic device, at least to solve the problem of power control when a sidelink device in the related art cannot meet the OCB requirement when transmitting PSFCH in an unlicensed frequency band.

Means for Solving the Problems

[0007] According to an embodiment of the present disclosure, the number N2 of physical sidelink feedback channels PSFCHs transmitted simultaneously by a terminal device UE in one PSFCH occasion, the transmission power of the PSFCHs, and the common resource blocks corresponding to the N2 PSFCHs and the transmission power of the common resource blocks are determined as follows: whether N2 is determined to be equal to N1, or whether the N2 is determined to be equal to Nmax, or N2 PSFCHs are determined from among the N1 PSFCHs according to the priority of the PSFCHs; determining whether the transmission power of the PSFCHs is the required power of the PSFCHs, or determining that the transmission power of the PSFCHs is X times the maximum power of the UE, or determining that the transmission power of the PSFCHs is the maximum or minimum value of the required power and X times the maximum power of the UE, where X is a rational number less than or equal to 1; and transmitting the determined N2 PSFCHs and the common resource blocks corresponding to the N2 PSFCHs, where the sum of the transmission power of the common resource blocks and the transmission power of the N2 PSFCHs is less than or equal to the maximum power of the UE; determining whether the transmission power of the common resource blocks is the required power of the common resource blocks, or determining that the transmission power of the common resource blocks is Y times the maximum power of the UE, or determining that the transmission power of the common resource blocks is the maximum or minimum value of the required power of the common resource blocks and Y times the maximum power of the UE, where Y is a rational number less than or equal to 1. The N1 is the number of PSFCHs that need to be transmitted in one PSFCH occasion, and the Nmax is the maximum number of PSFCHs that can be transmitted in one PSFCH occasion. An information determination method is provided.

[0008] According to another embodiment of the present disclosure, the number N2 of physical sidelink feedback channels PSFCHs transmitted simultaneously by a terminal device UE in one PSFCH occasion, the transmission power of the PSFCHs, and the common resource blocks corresponding to the N2 PSFCHs and the transmission power of the common resource blocks are determined such that N2 is determined to be equal to N1, or the N2 is determined to be equal to Nmax, or N2 PSFCHs are determined from among the N1 PSFCHs according to the priority of the PSFCHs, and the transmission power of the PSFCHs is determined to be the required power of the PSFCHs, or the transmission power of the PSFCHs is determined to be X times the maximum power of the UE, or the transmission power of the PSFCHs is determined to be the maximum or minimum value of the required power and X times the maximum power of the UE, provided that X is a rational number less than or equal to 1, and transmitting the determined N2 PSFCHs and the common resource blocks corresponding to the N2 PSFCHs, wherein the sum of the transmission power of the common resource blocks and the transmission power of the N2 PSFCHs is less than or equal to the maximum power of the UE, and the transmission power of the common resource blocks is determined to be the required power of the common resource blocks, or the transmission power of the common resource blocks is determined to be Y times the maximum power of the UE, or the transmission power of the common resource blocks is determined to be the maximum or minimum value of the required power of the common resource blocks and Y times the maximum power of the UE, provided that Y is a rational number less than or equal to 1, and a determination module configured to determine by the above is provided, where N1 is the number of PSFCHs that need to be transmitted in one PSFCH occasion, and Nmax is the maximum number of PSFCHs that can be transmitted in one PSFCH occasion, and an information determination device is provided.

[0009] According to yet another embodiment of the present disclosure, there is further provided a computer-readable storage medium storing a computer program, wherein the computer program, when executed, is configured to execute the steps of the embodiments of any of the above methods.

[0010] According to yet another embodiment of the present disclosure, there is further provided an electronic device including a memory and a processor, wherein the memory stores a computer program, and the processor is configured to execute the computer program to execute the steps of the embodiments of any of the above methods. [[Effect of the Invention]]

[0011] According to the present disclosure, the number N2 of physical sidelink feedback channels PSFCHs simultaneously transmitted by a terminal device UE in one PSFCH occasion, the transmission power of the PSFCHs, and the common resource blocks corresponding to the N2 PSFCHs and the transmission power of the common resource blocks are determined as follows: whether N2 is determined to be equal to N1, or whether the N2 is determined to be equal to Nmax, or N2 PSFCHs are determined from among the N1 PSFCHs according to the priority of the PSFCHs; whether the transmission power of the PSFCHs is determined to be the required power of the PSFCHs, or whether the transmission power of the PSFCHs is determined to be X times the maximum power of the UE, or whether the transmission power of the PSFCHs is determined to be the maximum or minimum value between the required power and X times the maximum power of the UE, where X is a rational number less than or equal to 1; and transmitting the determined N2 PSFCHs and the common resource blocks corresponding to the N2 PSFCHs, where the sum of the transmission power of the common resource blocks and the transmission power of the N2 PSFCHs is less than or equal to the maximum power of the UE; and whether the transmission power of the common resource blocks is determined to be the required power of the common resource blocks, or whether the transmission power of the common resource blocks is determined to be Y times the maximum power of the UE, or whether the transmission power of the common resource blocks is determined to be the maximum or minimum value between the required power of the common resource blocks and Y times the maximum power of the UE, where Y is a rational number less than or equal to 1. Here, the N1 is the number of PSFCHs that need to be transmitted in one PSFCH occasion, and the Nmax is the maximum number of PSFCHs that can be transmitted in one PSFCH occasion. Therefore, the problem of power control when a sidelink device fails to meet the requirements of OCB when transmitting PSFCHs in an unlicensed frequency band in the related art is solved, and thereby, power control that meets the requirements of OCB becomes possible when the sidelink device transmits PSFCHs in an unlicensed frequency band.

Brief Description of the Drawings

[0012]

Figure 1

Figure 2

Figure 3

Figure 4

[0013] Hereinafter, the embodiments of the present disclosure will be described in detail based on the examples with reference to the drawings. It should be noted that terms such as "first" and "second" in the specification and claims of the present disclosure and the above-mentioned drawings are intended to distinguish between similar objects and are not intended to describe a specific order or priority.

[0014] The method provided in the embodiments of the present disclosure may be implemented on a mobile terminal, a computer terminal, or a similar computing device. As an example of implementation on a computer terminal, FIG. 1 is a hardware configuration block diagram of a mobile terminal for implementing the information determination method of the embodiments of the present disclosure. As shown in FIG. 1, the mobile terminal may include one or more processors 102 (only one of which is shown in FIG. 1) (the processor 102 may include, but is not limited to, a processing device such as a microprocessor MCU or a programmable logic device FPGA) and a memory 104 configured to store data. The mobile terminal may further include a transmission device 106 and an input / output device 108 configured to have communication capabilities. Those skilled in the art will appreciate that the configuration shown in FIG. 1 is merely schematic and is not intended to limit the configuration of the mobile terminal. For example, the mobile terminal may include more or fewer components than those shown in FIG. 1 or may have a different configuration than that shown in FIG. 1.

[0015] The memory 104 can be configured to store computer programs such as software programs and modules of application software such as a computer program corresponding to the information determination method in the embodiments of the present disclosure. The processor 102 executes the computer programs stored in the memory 104 to execute various functional applications and data processing, that is, to implement the above-described method. The memory 104 can include a high-speed random access memory, and can also include non-volatile memory, such as one or more magnetic storage devices, flash memory, or other non-volatile solid-state memory. In some examples, the memory 104 may further include a memory remotely disposed with respect to the processor 102, and these remote memories can be connected to the mobile terminal via a network. Examples of the above network include, but are not limited to, the Internet, an intranet, a local area network, a mobile communication network, and combinations thereof.

[0016] The transmission device 106 is configured to transmit and receive data via a network. Specific examples of the above network can include a wireless network provided by a communication vendor of the mobile terminal. In one example, the transmission device 106 includes a network interface controller (simply referred to as NIC) that is connected to other network devices via a base station and can communicate with the Internet. In one example, the transmission device 106 may be a radio frequency (simply referred to as RF) module configured to communicate with the Internet in a wireless manner.

[0017] In this embodiment, an information determination method executed on a mobile terminal is provided. FIG. 2 is a flowchart of the information determination method according to the embodiment of the present disclosure. As shown in FIG. 2, the following step S202 is included.

[0018] In step S202, the terminal device UE determines the number N2 of physical sidelink feedback channels PSFCHs to be simultaneously transmitted in one PSFCH occasion and the transmission power of the PSFCHs, and also determines common resource blocks corresponding to the N2 PSFCHs and the transmission power of the common resource blocks, as follows:

[0019] The common resource block includes common RBs. Determine that N2 is equal to N1, or determine that N2 is equal to Nmax, or determine N2 PSFCHs from among the N1 PSFCHs according to the priority of the PSFCHs.

[0020] When N2 PSFCHs are determined, N2 is determined. Determine that the transmission power of the PSFCH is the demand power of the PSFCH, or determine that the transmission power of the PSFCH is X times the maximum power of the UE, or determine that the transmission power of the PSFCH is the maximum or minimum value of the demand power and X times the maximum power of the UE, where X is a rational number less than or equal to 1.

[0021] Transmit the determined N2 PSFCHs and common resource blocks corresponding to the N2 PSFCHs, where the sum of the transmit power of the common resource block and the transmit power of the N2 PSFCHs is less than or equal to the maximum power of the UE.

[0022] Determine whether the transmission power of the common resource block is the required power of the common resource block, or determine that the transmission power of the common resource block is Y times the maximum power of the UE, or determine that the transmission power of the common resource block is the maximum or minimum value between the required power of the common resource block and Y times the maximum power of the UE, provided that Y is a rational number less than or equal to 1. N1 is the number of PSFCHs that need to be transmitted in one PSFCH occasion, and Nmax is the maximum number of PSFCHs that can be transmitted in one PSFCH occasion.

[0023] By the above steps, the problem of power control when the sidelink device fails to meet the OCB requirements when transmitting PSFCH in the unlicensed frequency band in the related art is solved, thereby enabling power control that meets the OCB requirements when the sidelink device transmits PSFCH in the unlicensed frequency band.

[0024] In one exemplary embodiment, determining the number N2 of physical sidelink feedback channels PSFCHs to be transmitted includes at least one of: when N1 is less than or equal to Nmax and the power for transmitting all N1 PSFCHs and the common resource blocks corresponding to all N1 PSFCHs does not exceed the maximum power of the UE, N2 is equal to N1; when N1 is greater than Nmax and the power for transmitting Nmax PSFCHs and the common resource blocks corresponding to the Nmax PSFCHs does not exceed the maximum power of the UE, determining Nmax PSFCHs from among the N1 PSFCHs according to the priority of the PSFCHs and making N2 equal to Nmax; and determining N2 PSFCHs from among the N1 PSFCHs according to the priority of the PSFCHs.

[0025]

Number

[0026] In one exemplary embodiment, the required power of the PSFCH includes the PSFCH power determined by a set PSFCH power control parameter, and the required power of the common resource block includes the common resource block power determined by a set PSFCH power control parameter or a common resource block power control parameter.

[0027] In one exemplary embodiment, X is equal to the ratio of the occupied bandwidth by the transmission of one PSFCH to the occupied bandwidth by the transmission of N2 PSFCHs and the common resource blocks corresponding to the N2 PSFCHs, or X is equal to the ratio of the occupied bandwidth by the transmission of one PSFCH to a first value. However, the first value is the sum of the occupied bandwidth of N2 PSFCHs and m times the occupied bandwidth of the common resource blocks corresponding to the N2 PSFCHs, and m is the ratio of the power spectral density of the common resource block to the power spectral density of the PSFCH.

[0028] In one exemplary embodiment, Y is equal to the ratio of the occupied bandwidth by the transmission of the common resource block to the occupied bandwidth by the transmission of N2 PSFCHs and the common resource blocks corresponding to the N2 PSFCHs, or Y is equal to the ratio of m times the occupied bandwidth by the transmission of the common resource block to a second value. However, the second value is the sum of the occupied bandwidth of N2 PSFCHs and m times the occupied bandwidth of the common resource blocks corresponding to the N2 PSFCHs, and m is the ratio of the power spectral density of the common resource block to the power spectral density of the PSFCH.

[0029] In one exemplary embodiment, the method further includes a step that one of the N2 PSFCHs and the common resource block corresponding to the one PSFCH are located in the same RB set.

[0030] In addition, when the UE needs to transmit the N2 PSFCHs on a plurality of RB sets, it is necessary to transmit a common RB on each RB set.

[0031]

Number

[0032] In one exemplary embodiment, the method further includes the step that the N1 is the number of PSFCHs scheduled for transmission by the UE, or the N1 is the number of PSFCHs scheduled for transmission on one or more channels that the UE normally accesses using the LBT process.

[0033] It is obvious that the embodiments described above are only some, not all, of the embodiments of the present disclosure. In order to better understand the above method, the above process will be described in conjunction with embodiments, but it is not intended to limit the technical aspects of the embodiments of the present disclosure. Optionally, The scenario targeted by the present disclosure is that one device (UE) needs to transmit N1 PSFCH transmissions on a PSFCH occasion on one resource pool, and the maximum number of PSFCHs that the UE can transmit on one PSFCH occasion is Nmax. The present disclosure provides a method for the UE to determine the number N2 of PSFCHs that can finally be transmitted, determine the transmission power of the N2 PSFCHs, and determine the transmission power of the common RB corresponding to the N2 PSFCHs.

[0034] In one embodiment, the resource pool may include a plurality of RB sets, and the channel is pointed to by the RB set later. When the UE needs to transmit on a plurality of RB sets, it is necessary to meet the OCB requirements on each RB set. That is, in one example, it is necessary to transmit common RBs on each RB set to be transmitted. These common RBs may sometimes be called special PSFCHs. In order to distinguish them from general PSFCHs, hereinafter, the use of common RBs refers to the channels / signals for extending the PSFCH to meet the OCB requirements.

[0035] In one embodiment, N1 is the number of PSFCHs scheduled for the UE to transmit. In another embodiment, N1 is the number of PSFCHs scheduled for the UE to transmit on one or more channels that the UE normally accesses using the LBT process.

[0036] In one embodiment, determining the transmission power of the common RBs corresponding to N2 PSFCHs includes determining M(N2) RB sets where the N2 PSFCHs exist, and for each RB set, determining the transmission power of its common RB or common PRB. Note that the common RB includes one or more common PRBs on one RB set.

[0037]

Number

[0038] In one exemplary embodiment, as shown in FIG. 3, when the UE needs to transmit one or more PSFCHs on Channel 1, it is necessary to transmit common RBs or common PRBs on Channel 1 to meet the OCB requirements.

[0039] Optionally, the method for determining the number N2 of PSFCHs that the UE can finally transmit, the method for determining the transmission power of the N2 PSFCHs, and the method for determining the transmission power of the common RBs corresponding to the N2 PSFCHs may have the following steps.

[0040]

Number

[0041] In step 2, if N1 is less than or equal to Nmax and the power for transmitting all N1 psfch and their corresponding common RBs does not exceed the total power, N2 is equal to N1. Or, if the power for transmitting Nmax psfch and their corresponding common RBs does not exceed the maximum total power (in the scenario where N1 is greater than Nmax, Nmax is selected from N1 according to the priority), N2 is equal to Nmax. In other scenarios, select and transmit the common RBs corresponding to N2 PSFCH devices according to the priority, and ensure that the transmission power does not exceed the maximum total power.

[0042] In step 3, transmit the determined N2 PSFCHs to be transmitted and their corresponding common RBs, and determine their transmission power. For example, it may be the required power of the PSFCH described above.

[0043] Scenario 1 In this scenario, assume that downlink-based PSFCH power control is enabled, that is, the downlink power control parameter dl-P0-PSFCH is set or provided.

[0044]

Number

[0045] (Example 1)

[0046]

number

[0047] (Example 2)

[0048]

number

[0049] (Example 3)

[0050]

number

[0051] Note that Examples 1 to 3 merely calculate the transmission power of one PSFCH and one Common RB, and from Example 4 onwards, the process of determining N2 and the Common RB to be transmitted will be explained. (Example 4)

[0052]

number

[0053] Note that in this disclosure, * is used to represent multiplication. (Example 5)

[0054]

number

[0055] where M(N2) is the number of RB sets occupied by the selected N2 PSFCHs, i.e., the number of corresponding common RBs to be transmitted, or M(N2) is equal to the maximum or minimum of the above two values.

[0056] In one example, the transmit power of one PSFCH k may be equal to:

[0057] [Number]

[0058] [Number]

[0059] Alternatively, the power of one PRB of one common RB is equal to the maximum or minimum value of the above two.

[0060] In one example, the transmission power of one PRB on one common RB is equal to the following value.

[0061] [Number]

[0062] Note that the following Example 5a, Example 7a, and Example 7b aim to guarantee the transmission power and transmission number of PSFCH when the power is limited, and furthermore, reduce the power or number of common PRBs. (Example 5a)

[0063] [Number]

[0064] (Example 6)

[0065] [Number]

[0066] (Example 7)

[0067] [Number]

[0068] However, M(N2) is the number of RB sets occupied by the selected N2 PSFCHs, that is, the number of corresponding common RBs to be transmitted. Alternatively, M(N2) is equal to the maximum or minimum value of the above two.

[0069] In one example, the transmission power of one PSFCH k may be equal to the following value.

[0070]

Number

[0071] Alternatively, the power of one PRB of one common RB is equal to the maximum or minimum value of the above two.

[0072] In one example, the transmission power of one PRB on one common RB is equal to the following value.

[0073]

Number

[0074] (Example 7a)

[0075]

Number

[0076] (Example 7b)

[0077]

Number

[0078] Scenario 2 In this scenario, it is assumed that downlink-based PSFCH power control is not enabled, that is, the downlink power control parameter dl-P0-PSFCH is not set or provided. (Example 8)

[0079] [Number]

[0080] In one example, the transmission power of one PRB in the common RB is the same as the transmission power of one PSFCH PRB. That is, the common RB and the PSFCH RB have the same PSD or EPRE. At this time, for one PSFCH k out of N2, its transmission power is

[0081] [Number]

[0082] equal to

[0083] [Number]

[0084] At this time, the power of the common PRB is equal to the power of the PSFCH PRB. For one common RB i, its transmission power is

[0085] [Number]

[0086] (Example 9)

[0087] [Number]

[0088] In one example, the transmission power of one PRB in the common RB is different from the transmission power of one PSFCH PRB. For example, the power of one PRB in the common RB is X times the power of one PSFCH PRB, and X is a rational number. By setting or defining X to be a value smaller than 1, the power of the common RB can be reduced. In short, the common RB and the PSFCH PRB may have different PSDs or EPREs. At this time, for one PSFCH k out of N2, its transmission power is

[0089]

Number

[0090] equal to Alternatively, the power of one PRB of an equivalent common RB is the sum of one PSFCH PRB and one offset Y.

[0091]

Number

[0092] (Example 10) In one example, the transmission power of one common PRB in the common RB is the same as the transmission power of one PSFCH PRB. That is, the common RB and the PSFCH RB have the same PSD or EPRE. Set the minimum transmission power of one PRB to Pmini.

[0093]

Number

[0094]

Number

[0095]

Number

[0096]

number

[0097] (Example 11) In one example, the transmission power of one PRB in a common RB is different from the transmission power of one PSFCH PRB. For example, the power of one PRB in a common RB is X times the power of one PSFCH PRB, where X is a rational number. The power of the common RB can be reduced by setting or defining X to a value smaller than 1. In other words, the common RB and the PSFCH PRB may have different PSDs or EPREs. When the minimum transmission power of one PSFCH PRB is set to Pmini, the minimum transmission power of PRBs in one common RB is X times Pmini, or its dB value is offset by Y.

[0098]

number

[0099]

number

[0100]

number

[0101]

number

[0102] (Example 12)

[0103]

number

[0104] The value of N2 can be determined as described in the previous example and may optionally include the following.

[0105]

Number

[0106] In one example, when selecting the common PRBs to be transmitted, the common PRBs that can meet the OCB requirements can be preferentially selected. For example, one RB set is 20 MHz, and one unit bandwidth can be 2 MHz / 5 MHz, etc., and one RB set can be divided into several unit bandwidths. If there is a PSFCH transmitted within one unit bandwidth, it may not be necessary to transmit the common PRBs within that unit bandwidth. If there is no PSFCH transmitted within one unit bandwidth, the common PRBs can be filled and transmitted. That is, in one example, the common PRBs and PSFCH PRBs are distributed as evenly as possible within one RB set to meet the OCB requirements. (Example 13) In one example, only ensure that the transmission power of one PSFCH PRB is sufficient, set the minimum transmission power of one PSFCH PRB to Pmini, and in the case of common PRBs, its transmission power can be reduced. Different from Example 10, in this example, when it is determined that the power is limited, the number of transmissions and power of the PSFCH can be guaranteed as much as possible, and moreover, the transmission power of the common PRBs can be reduced.

[0107]

Number

[0108] The value of N2 can be determined as described in the previous example and may optionally include the following.

[0109]

Number

[0110] In one example, when selecting the common PRBs to be transmitted, the common PRBs that can meet the OCB requirements can be preferentially selected. For example, one RB set is 20 MHz, and one unit bandwidth can be 2 MHz / 5 MHz, etc., and one RB set can be divided into several unit bandwidths. If there is a PSFCH to be transmitted within one unit bandwidth, it is not necessary to transmit the common PRBs within that unit bandwidth. If there is no PSFCH to be transmitted within one unit bandwidth, the common PRBs can be filled and transmitted. That is, in one example, the common PRBs and the PSFCH PRBs are distributed as evenly as possible within one RB set to meet the OCB requirements.

[0111] Note that the present disclosure solves the power control when the Sidelink device meets the OCB requirements when transmitting the PSFCH in the unlicensed frequency band. For different scenarios (with or without DL power control), there are the following methods.

[0112] (1) Determine N2 feedbacks that can be transmitted from the N1 feedbacks that need to be transmitted, and determine the corresponding common RBs.

[0113] (2) Consider the determination of N2 and the common RBs in the scenario where there are multiple RB sets.

[0114] (3) Determine the power of the PSFCH. (4) Determine the power of the common RBs.

[0115] Through the description of the above embodiments, the method according to the above-described embodiments can be implemented in a manner of adding a general-purpose hardware platform required for software, and can also be implemented by hardware. However, those skilled in the art can understand that in many cases, it is preferable to implement it by the previous method. Based on this, the essence of the technical solution of the present disclosure or the part that contributes to the prior art can be implemented in the form of a software product. The computer software product includes a plurality of instructions for causing a terminal device (which may be a mobile phone, a computer, a server, or a network device, etc.) to execute the methods described in the embodiments of the present disclosure and is stored in a storage medium (such as ROM / RAM, magnetic disk, optical disk).

[0116] In this embodiment, an information determination device for implementing the above-described embodiments and preferred embodiments is further provided, and the ones already described are omitted. The term "module" used hereinafter refers to a combination of software and / or hardware capable of realizing a predetermined function. Although it is preferable to implement the device described in the following embodiments by software, it is also possible and conceivable to implement it by hardware or a combination of software and hardware.

[0117] FIG. 4 is a block diagram of the configuration of an information determination device according to an embodiment of the present disclosure. As shown in FIG. 4, this device includes a determination module 42.

[0118] The decision module 42 determines the number N2 of physical sidelink feedback channels PSFCHs that the terminal device UE transmits simultaneously on one PSFCH occasion and the transmission power of the PSFCHs, and determines the common resource blocks corresponding to the N2 PSFCHs and the transmission power of the common resource blocks, by determining whether N2 is equal to N1, or determining that the N2 is equal to Nmax, or determining N2 PSFCHs from among the N1 PSFCHs according to the priority of the PSFCHs, and determining whether the transmission power of the PSFCHs is the required power of the PSFCHs, or determining that the transmission power of the PSFCHs is X times the maximum power of the UE, or determining that the transmission power of the PSFCHs is the maximum or minimum value between the required power and X times the maximum power of the UE, where X is a rational number less than or equal to 1, and transmitting the determined N2 PSFCHs and the common resource blocks corresponding to the N2 PSFCHs, where the sum of the transmission power of the common resource blocks and the transmission power of the N2 PSFCHs is less than or equal to the maximum power of the UE, and determining whether the transmission power of the common resource blocks is the required power of the common resource blocks, or determining that the transmission power of the common resource blocks is Y times the maximum power of the UE, or determining that the transmission power of the common resource blocks is the maximum or minimum value between the required power of the common resource blocks and Y times the maximum power of the UE, where Y is a rational number less than or equal to 1, and is configured to perform in such a manner, where the N1 is the number of PSFCHs that need to be transmitted on the one PSFCH occasion, and the Nmax is the maximum number of PSFCHs that can be transmitted on one PSFCH occasion.

[0119] With the above device, when a sidelink device transmits a PSFCH in an unlicensed frequency band in the related art and cannot meet the requirements of OCB, the problem of power control is solved, whereby power control can be performed such that the requirements of OCB are met when the sidelink device transmits a PSFCH in the unlicensed frequency band.

[0120] In one exemplary embodiment, the determining module 42 is further configured to determine the number N2 of physical sidelink feedback channels PSFCH to be transmitted, such that when N1 is less than or equal to Nmax and the power for transmitting all N1 PSFCH and the common resource blocks corresponding to all N1 PSFCH does not exceed the maximum power of the UE, N2 is equal to N1; when N1 is greater than Nmax and the power for transmitting Nmax PSFCH and the common resource blocks corresponding to the Nmax PSFCH does not exceed the maximum power of the UE, determining Nmax PSFCH from among the N1 PSFCH according to the priority of the PSFCH, such that N2 is equal to Nmax; and determining N2 PSFCH from among the N1 PSFCH according to the priority of the PSFCH, in at least one of these manners.

[0121]

Number

[0122] In one exemplary embodiment, the required power of the PSFCH includes the PSFCH power determined by a set PSFCH power control parameter, and the required power of the common resource block includes the common resource block power determined by a set PSFCH power control parameter or a common resource block power control parameter.

[0123] In one exemplary embodiment, X is equal to the ratio of the occupied bandwidth by the transmission of one PSFCH to the occupied bandwidth by the transmission of N2 PSFCHs and the common resource blocks corresponding to the N2 PSFCHs, or X is equal to the ratio of the occupied bandwidth by the transmission of one PSFCH to a first value. However, the first value is the sum of the occupied bandwidth of N2 PSFCHs and m times the occupied bandwidth of the common resource blocks corresponding to the N2 PSFCHs, where m is the ratio of the power spectral density of the common resource block to the power spectral density of the PSFCH.

[0124] In one exemplary embodiment, Y is equal to the ratio of the occupied bandwidth by the transmission of the common resource block to the occupied bandwidth by the transmission of N2 PSFCHs and the common resource blocks corresponding to the N2 PSFCHs, or Y is equal to the ratio of m times the occupied bandwidth by the transmission of the common resource block to a second value. However, the second value is the sum of the occupied bandwidth of N2 PSFCHs and m times the occupied bandwidth of the common resource blocks corresponding to the N2 PSFCHs, where m is the ratio of the power spectral density of the common resource block to the power spectral density of the PSFCH.

[0125] In one exemplary embodiment, one of the N2 PSFCHs and the common resource block corresponding to the one PSFCH are located in the same RB set.

[0126]

Number

[0127] In one exemplary embodiment, N1 is the number of PSFCHs scheduled for transmission by the UE, or N1 is the number of PSFCHs scheduled for transmission on one or more channels that the UE accesses normally using the LBT process.

[0128] Note that each of the above modules can be implemented by software or hardware. When implemented by hardware, all of the above modules can be located in the same processor, or each of the above modules can be located in different processors in any combination form, but it is not limited thereto.

[0129] An embodiment of the present disclosure further provides a computer-readable storage medium storing a computer program, where the computer program is configured to execute the steps of any of the above method embodiments when executed.

[0130] In one exemplary embodiment, the computer-readable storage medium can include various media capable of storing a computer program, such as a USB flash drive, a read-only memory (ROM), a random access memory (RAM), a portable HDD, a magnetic disk, or an optical disk, but is not limited thereto.

[0131] An embodiment of the present disclosure further provides an electronic device including a memory and a processor, where a computer program is stored in the memory, and the processor is configured to execute the computer program to execute the steps of any of the above method embodiments.

[0132] In one exemplary embodiment, the electronic device can further include a transmission device and an input / output device. The transmission device is connected to the processor, and the input / output device is connected to the processor.

[0133] For specific examples in this embodiment, reference can be made to the examples described in the above embodiments and exemplary embodiments, and detailed descriptions are omitted in this embodiment.

[0134] It will be apparent to those skilled in the art that the modules or steps of the present disclosure described above can be implemented by a general-purpose computing device, can be integrated into a single computing device, or can be distributed across a network of multiple computing devices, and can be implemented by program code executable on a computing device, which can be stored in a storage device and executed by a computing device. In some cases, the illustrated or described steps can be executed in a different order from that shown here, or can be implemented by fabricating each module as an integrated circuit module, or by fabricating multiple modules or steps as a single integrated circuit module. Thus, the present disclosure is not limited to any specific combination of hardware and software.

[0135] The above is merely a preferred embodiment of the present disclosure and is not intended to limit the present disclosure. Those skilled in the art can make various modifications and variations to the present disclosure. Any modifications, equivalent replacements, improvements, etc. within the principle of the present disclosure should be included within the protection scope of the present disclosure.

Claims

1. The number N2 of physical sidelink feedback channels PSFCHs simultaneously transmitted by a terminal device UE in one PSFCH occasion, the transmission power of the PSFCHs, and the common resource blocks corresponding to the N2 PSFCHs and the transmission power of the common resource blocks are to determine whether N2 is equal to N1, or to determine that the N2 is equal to Nmax, or to determine N2 PSFCHs from among the N1 PSFCHs according to the priority order of the PSFCHs, to determine whether the transmission power of the PSFCH is the required power of the PSFCH, or to determine that the transmission power of the PSFCH is X times the maximum power of the UE, or to determine that the transmission power of the PSFCH is the maximum value or the minimum value between the required power and X times the maximum power of the UE, provided that X is a rational number less than or equal to 1, to transmit the determined N2 PSFCHs and the common resource blocks corresponding to the N2 PSFCHs, wherein the sum of the transmission power of the common resource blocks and the transmission power of the N2 PSFCHs is not more than the maximum power of the UE, to determine whether the transmission power of the common resource block is the required power of the common resource block, or to determine that the transmission power of the common resource block is Y times the maximum power of the UE, or to determine that the transmission power of the common resource block is the maximum value or the minimum value between the required power of the common resource block and Y times the maximum power of the UE, provided that Y is a rational number less than or equal to 1, including the step of determining by wherein the N1 is the number of PSFCHs that need to be transmitted in one PSFCH occasion, and the Nmax is the maximum number of PSFCHs that can be transmitted in one PSFCH occasion, an information determination method.

2. Determining the number N2 of physical sidelink feedback channels PSFCHs to be transmitted is when N1 is not more than Nmax and the power for transmitting the N1 PSFCHs and the common resource blocks corresponding to the N1 PSFCHs does not exceed the maximum power of the UE, N2 is equal to N1, If N1 is greater than Nmax and the power for transmitting Nmax PSFCHs and the common resource blocks corresponding to the Nmax PSFCHs does not exceed the maximum power of the UE, then Nmax PSFCHs are determined from among the N1 PSFCHs according to the priority order of the PSFCHs, and N2 becomes equal to Nmax, and The information determination method according to claim 1, including at least one of: determining N2 PSFCHs from among the N1 PSFCHs according to the priority order of the PSFCHs.

3. Determining N2 PSFCHs from among the N1 PSFCHs according to the priority order of the PSFCHs means that if there is a PSFCH including HARQ-ACK among the N1 PSFCHs, the PSFCH including HARQ-ACK is transmitted according to the priority order, and if there is a PSFCH including collision information, the PSFCH including collision information is transmitted according to the priority order, N2 is 1 or more, or 【Number 1】 The information determination method according to claim 1.

4. The required power of the PSFCH includes the PSFCH power determined by a set PSFCH power control parameter, The required power of the common resource block includes the common resource block power determined by a set PSFCH power control parameter or a common resource block power control parameter. The information determination method according to claim 1.

5. X is equal to the ratio of the occupied bandwidth by transmitting one PSFCH to the occupied bandwidth of N2 PSFCHs and the common resource blocks corresponding to the N2 PSFCHs, or X is equal to the ratio of the occupied bandwidth by transmitting one PSFCH to a first value, and the first value is the sum of the occupied bandwidth of N2 PSFCHs and m times the occupied bandwidth of the common resource blocks corresponding to the N2 PSFCHs, and m is the ratio of the power spectral density of the common resource block to the power spectral density of the PSFCH. The information determination method according to claim 1.

6. Y is equal to the ratio of the occupied bandwidth by transmitting the common resource block to the occupied bandwidth by transmitting N2 PSFCHs and the common resource blocks corresponding to the N2 PSFCHs, or The above Y is equal to the ratio of m times the occupied bandwidth due to the transmission of the common resource block to a second value, where the second value is the sum of the occupied bandwidth of N2 PSFCHs and m times the occupied bandwidth of the common resource blocks corresponding to the N2 PSFCHs, and the m is the ratio of the power spectral density of the common resource block to the power spectral density of the PSFCH. The information determination method according to claim 1.

7. The method for determining information according to claim 1, further comprising the step that one of the N2 PSFCHs and the common resource block corresponding to the one PSFCH are located in the same RB set.

8. 【Fig. 2】 The method for determining information according to claim 7.

9. The method for determining information according to claim 1, further comprising the step that the N1 is the number of PSFCHs scheduled to be transmitted by the UE, or the N1 is the number of PSFCHs scheduled to be transmitted on one or more channels that the UE normally accesses using the LBT process.

10. The number N2 of physical sidelink feedback channels PSFCHs and the transmission power of the PSFCHs that the terminal device UE transmits simultaneously in one PSFCH occasion, and the common resource blocks corresponding to the N2 PSFCHs and the transmission power of the common resource blocks, determining whether N2 is equal to N1, or determining whether the N2 is equal to Nmax, or determining N2 PSFCHs from among the N1 PSFCHs according to the priority of the PSFCHs, determining whether the transmission power of the PSFCH is the required power of the PSFCH, or determining that the transmission power of the PSFCH is X times the maximum power of the UE, or determining that the transmission power of the PSFCH is the maximum value or the minimum value of the required power and X times the maximum power of the UE, provided that X is a rational number less than or equal to 1, transmitting the determined N2 PSFCHs and the common resource blocks corresponding to the N2 PSFCHs, where the sum of the transmission power of the common resource blocks and the transmission power of the N2 PSFCHs is not more than the maximum power of the UE. A determination module configured to determine whether the transmission power of the common resource block is the required power of the common resource block, or determine whether the transmission power of the common resource block is Y times the maximum power of the UE, or determine that the transmission power of the common resource block is the maximum value or the minimum value of the required power of the common resource block and Y times the maximum power of the UE, provided that Y is a rational number less than or equal to 1. The information determination device, where N1 is the number of PSFCHs that need to be transmitted in the one PSFCH occasion, and Nmax is the maximum number of PSFCHs that can be transmitted in one PSFCH occasion. **Claim 11** A computer-readable storage medium storing a computer program, where the computer program is configured to execute the method according to any one of claims 1 to 9 when executed. **Claim 12** An electronic device comprising a memory and a processor, where a computer program is stored in the memory, and the processor is configured to execute the computer program to execute the method according to any one of claims 1 to 9.

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