Information determination method and device, computer program and electronic device

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 to a Chinese patent application filed with the China Patent Office on August 1, 2022, bearing application number 202210916786.6 and entitled "Information determination method and device, storage medium and electronic device," the entire contents of which are incorporated herein by reference. [Technical field] TECHNICAL FIELD Embodiments of the present disclosure relate to the field of communications, and in particular to an information determination method and apparatus, a storage medium, and an electronic device. [Background technology]

[0002] According to current standardization discussions, for the physical sidelink feedback channel (PSFCH) to meet the occupied channel bandwidth (OCB) requirement, simply using an interlaced resource block (IRB) structure consumes a large amount of frequency domain resources. For example, one IRB contains at least 10 PRBs, which ultimately reduces the number of PSFCHs that can be transmitted in one PSFCH occasion, affecting the PSFCH capacity. One current solution is to divide the frequency domain resources in a 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 in that occasion, these UEs all occupy the same common RB resources to transmit signals to meet the OCB requirement. However, regardless of the number of UEs transmitting simultaneously, there is only one overhead, i.e., a common RB resource, to meet the OCB requirement. For the resources for carrying feedback information, resource mapping can generally be used to allow different UEs to use different resources to feedback their respective information, which is similar to the traditional PSFCH resources. By combining these two types of resources, the overhead of OCB can be properly controlled and the capacity of the PSFCH can be avoided from being excessively affected.

[0003] However, the above method still has many problems to be solved: First, the current PSFCH power control 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), and the related process needs to be designed.

[0004] Direct connect communication is also called sidelink (SL) communication. Hereinafter, this refers to all direct connect communication using SL communication. SL communication is currently performed in licensed or dedicated frequency bands. For example, vehicle-to-anything (V2X) communication can be performed in dedicated frequency bands. In recent years, with the development of SL communication, the need for SL transmission in unlicensed frequency bands has also increased. Before SL transmission in unlicensed frequency bands, a channel access process commonly called a listen-before-talk (LBT) process must be performed in accordance with the relevant frequency band usage specifications to avoid interference with devices in other systems. Generally, if the channel resource is determined to be idle within a detection time period corresponding to the LBT process (i.e., the LBT is successful), the UE can continue transmission; otherwise, the UE must abandon transmission.

[0005] In some regions, occupying unlicensed spectrum requires meeting the channel occupied bandwidth (OCB) requirement. That is, when a device accesses and transmits on a channel, the bandwidth of the transmitted signal must occupy at least 80% of that channel's bandwidth. For example, if a channel is 20 MHz, the transmitted signal is generally required to span a bandwidth of at least 16 MHz in the frequency domain. Some signals / channels in SL also need to meet the OCB requirement, including the feedback channel (PSFCH). The PSFCH is typically used to carry very few bits and has a very small occupied bandwidth, such as one physical resource block (PRB). The PSFCH's transmission bandwidth must be changed to meet the OCB requirement, and its power control must also be modified to accommodate the new transmission bandwidth. Considering that a UE can transmit multiple PSFCHs on multiple channels, a comprehensive PSFCH power control solution over multiple channels must be designed. Summary of the Invention [Problem to be solved by the invention]

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

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

[0008] According to another embodiment of the present disclosure, the terminal device UE determines the number N2 of physical sidelink feedback channels PSFCHs that the terminal device UE simultaneously transmits in one PSFCH occasion, the transmission power of the PSFCHs, and the transmission power of common resource blocks and common resource blocks corresponding to the N2 PSFCHs, so that N2 is equal to N1, or so that N2 is equal to Nmax, or so that N2 PSFCHs are determined from among the N1 PSFCHs according to the priority of the PSFCHs; and determines that the transmission power of the PSFCHs is a demand power of the PSFCHs, or that the transmission power of the PSFCHs is X times a maximum power of the UE, or that the transmission power of the PSFCHs is a maximum or minimum value of the demand power and X times a maximum power of the UE, where X is a rational number equal to or less than 1; and a determination module configured to: transmit a PSFCH of N1 and common resource blocks corresponding to the N2 PSFCHs, wherein a sum of a transmit power of the common resource block and a transmit power of the N2 PSFCHs is equal to or less than a maximum power of the UE; and determine that the transmit power of the common resource block is a demand power of the common resource block, or determine that the transmit power of the common resource block is Y times the maximum power of the UE, or determine that the transmit power of the common resource block is a maximum or minimum value of the demand power of the common resource block and Y times the maximum power of the UE, where Y is a rational number equal to or less than 1, wherein 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.

[0009] According to yet another embodiment of the present disclosure, there is further provided a computer-readable storage medium having a computer program stored thereon, the computer program being configured, when executed, to perform the steps of any of the method embodiments described above.

[0010] According to yet another embodiment of the present disclosure, there is further provided an electronic device comprising a memory and a processor, wherein a computer program is stored in the memory, and wherein the processor is configured to execute the computer program to perform steps of any of the method embodiments described above. [Effects of the Invention]

[0011] According to the present disclosure, the number N2 of physical sidelink feedback channels PSFCHs that a terminal device UE simultaneously transmits in one PSFCH occasion, the transmission power of the PSFCHs, and the transmission power of common resource blocks and common resource blocks corresponding to the N2 PSFCHs are 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 a demand 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 a maximum or minimum value of the demand power and X times the maximum power of the UE, where X is a rational number equal to or less than 1. and transmitting the determined N2 PSFCHs and a common resource block corresponding to the N2 PSFCHs, wherein a sum of the transmit power of the common resource block and the transmit power of the N2 PSFCHs is equal to or less than a maximum power of the UE, and determining that the transmit power of the common resource block is a demand power of the common resource block, or that the transmit power of the common resource block is Y times the maximum power of the UE, or that the transmit power of the common resource block is a maximum or minimum value of the demand power of the common resource block and Y times the maximum power of the UE, where Y is a rational number equal to or less than 1, 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. This solves the problem of power control in the related art when a sidelink device cannot meet the OCB requirements when transmitting a PSFCH in an unlicensed frequency band, thereby enabling power control that meets the OCB requirements when the sidelink device transmits a PSFCH in an unlicensed frequency band. [Brief explanation of the drawings]

[0012] [Figure 1] FIG. 10 is a block diagram illustrating the hardware configuration of a mobile terminal in an information determination method according to an embodiment of the present disclosure. [Figure 2] 1 is a flowchart of a method for determining information according to an embodiment of the present disclosure. [Figure 3] 1 is a schematic diagram of an information determination method according to an embodiment of the present disclosure. [Figure 4] FIG. 1 is a configuration block diagram of an information determination device according to an embodiment of the present disclosure. DETAILED DESCRIPTION OF THE INVENTION

[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 may be configured to store computer programs, such as software programs and modules of application software, such as a computer program corresponding to an information determination method according to an embodiment of the present disclosure. The processor 102 executes the computer programs stored in the memory 104 to perform various functional applications and data processing, i.e., to realize the above-described methods. The memory 104 may include high-speed random access memory and may 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 memory located remotely from the processor 102, which may be connected to the mobile terminal via a network. Examples of such networks 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 over a network. An example of the network may include a wireless network provided by a communications vendor of the mobile terminal. In one example, the transmission device 106 includes a network interface controller (NIC) that is connected to other network devices via a base station and is capable of communicating with the Internet. In one example, the transmission device 106 may be a radio frequency (RF) module configured to communicate with the Internet wirelessly.

[0017] In this embodiment, an information determination method implemented in a mobile terminal is provided. Figure 2 is a flowchart of the information determination method according to the embodiment of the present disclosure, which includes the following step S202, as shown in Figure 2:

[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 that the transmission power of the common resource block is the demand 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 of the demand power of the common resource block and Y times the maximum power of the UE, where 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] The above steps solve the problem in the related art of power control when a sidelink device cannot meet the OCB requirements when transmitting a PSFCH in an unlicensed frequency band, thereby enabling power control to meet the OCB requirements when a sidelink device transmits a PSFCH in an unlicensed frequency band.

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

[0025]

number

[0026] In one exemplary embodiment, the demand power of the PSFCH includes a PSFCH power determined by a set PSFCH power control parameter, and the demand power of the common resource block includes a 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 resulting from the transmission of one PSFCH to the occupied bandwidth resulting from the transmission of N2 PSFCHs and common resource blocks corresponding to the N2 PSFCHs, or X is equal to the ratio of the occupied bandwidth resulting from the transmission of one PSFCH to a first value, where the first value is the sum of the occupied bandwidth of the 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 blocks to the power spectral density of the PSFCH.

[0028] In one exemplary embodiment, Y is equal to the ratio of the occupied bandwidth resulting from the transmission of the common resource block to the occupied bandwidth resulting from the transmission of N2 PSFCHs and common resource blocks corresponding to the N2 PSFCHs, or Y is equal to the ratio of m times the occupied bandwidth resulting from the transmission of the common resource block to a second value, where the second value is the sum of the occupied bandwidth of the 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 in which one PSFCH of the N2 PSFCHs and a common resource block corresponding to the one PSFCH are located in the same RB set.

[0030] If the UE needs to transmit the N2 PSFCHs on multiple RB sets, it needs to transmit a common RB on each RB set.

[0031]

number

[0032] In one exemplary embodiment, the method further includes the step of: N1 is the number of PSFCHs that the UE is scheduled to transmit; or N1 is the number of PSFCHs that the UE is scheduled to transmit on one or more channels that the UE successfully accesses using an LBT process.

[0033] It is clear that the above-described embodiments are only some of the embodiments of the present disclosure, and are not all of them. In the following, the above process will be described in accordance with the embodiments in order to better understand the above method, but is not intended to limit the technical aspects of the embodiments of the present disclosure. Optionally, The present disclosure targets a scenario in which one device (UE) needs to transmit N1 PSFCH transmissions in PSFCH occasions on one resource pool, and the maximum number of PSFCHs that the UE can transmit in one PSFCH occasion is Nmax. The present disclosure provides a method for determining N2, the number of PSFCHs that the UE can ultimately transmit, determining the transmit powers of the N2 PSFCHs, and determining the transmit powers of common RBs corresponding to the N2 PSFCHs.

[0034] In one embodiment, the resource pool may include multiple RB sets, and hereinafter, the RB set will be used to refer to the channel. When a UE needs to transmit on multiple RB sets, it needs to satisfy the OCB requirements on each RB set, i.e., in one example, it needs to transmit common RBs on each RB set to be transmitted. These common RBs may also be called special PSFCHs, but to distinguish them from general PSFCHs, hereinafter, the common RB will be used to refer to a channel / signal for extending the PSFCH to satisfy the OCB requirements.

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

[0036] In one embodiment, determining the transmit power of common RBs corresponding to the N2 PSFCHs includes determining M(N2) RB sets in which the N2 PSFCHs exist, and determining the transmit power of the common RBs or common PRBs for each RB set, where common RBs include one or more common PRBs in one RB set.

[0037]

number

[0038] In one exemplary embodiment, as shown in FIG. 3, if a UE needs to transmit one or more PSFCHs on channel 1, it needs to transmit common RBs or common PRBs on channel 1 to meet the requirements of OCB.

[0039] Optionally, the method for determining the number N2 of PSFCHs that the UE can ultimately transmit, the method for determining the transmission powers of the N2 PSFCHs, and the method for determining the transmission powers of common RBs corresponding to the N2 PSFCHs may include 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 psfchs and their corresponding common RBs does not exceed the total power, then N2 is equal to N1. Alternatively, if the power for transmitting Nmax psfchs and their corresponding common RBs does not exceed the maximum total power (in a scenario where N1 is greater than Nmax, Nmax is selected from N1 according to priority), then N2 is equal to Nmax; in other scenarios, common RBs corresponding to N2 PSFCH devices are selected and transmitted according to priority, while ensuring that the transmission power does not exceed the maximum total power.

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

[0043] Scenario 1 In this scenario, it is assumed that downlink (DL) based PSFCH power control is enabled, i.e., downlink power control parameter dl-P0-PSFCH is configured 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 in one common RB is equal to the maximum or minimum of the above two values.

[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 Examples 5a, 7a, and 7b are directed to guaranteeing the transmission power and number of transmissions of the PSFCH when power is limited, and further reducing the power or number of common PRBs. (Example 5a)

[0063]

number

[0064] (Example 6)

[0065]

number

[0066] (Example 7)

[0067]

number

[0068] 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.

[0069] In one example, the transmit power of one PSFCH k may be equal to:

[0070]

number

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

[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 (DL) based PSFCH power control is not enabled, i.e., the downlink power control parameter dl-P0-PSFCH is not configured or provided. (Example 8)

[0079]

number

[0080] In one example, the transmission power of one PRB in a common RB is the same as the transmission power of one PSFCH PRB, i.e., the common RB and the PSFCH RB have the same PSD or EPRE. In this case, for one PSFCH k among N2, its transmission power is

[0081]

number

[0082] is equal to.

[0083]

number

[0084] In this case, the power of the common PRB is equal to the power of the PSFCH PRB, and the transmission power of one common RB i is expressed as follows:

[0085]

number

[0086] (Example 9)

[0087]

number

[0088] 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. By setting or defining X to a value smaller than 1, the power of the common RB can be reduced. In other words, the common RB and the PSFCH PRB may have different PSDs or EPREs. In this case, for one PSFCH k out of N2, its transmission power is

[0089]

number

[0090] is equal to. Alternatively, the power of one PRB of the 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 a common RB is the same as the transmission power of one PSFCH PRB, i.e., the common RB and the PSFCH RB have the same PSD or EPRE. The minimum transmission power of one PRB is set 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] Determining the value of N2 may be done as described in the previous example and may optionally include:

[0105]

number

[0106] For example, when selecting common PRBs to be transmitted, common PRBs that can satisfy the OCB requirements can be preferentially selected. For example, one RB set can be divided into several unit bandwidths, such as one RB set of 20 MHz and one unit bandwidth of 2 MHz / 5 MHz. If a PSFCH is to be transmitted within one unit bandwidth, the common PRBs within that unit bandwidth do not need to be transmitted. If a PSFCH is not to be transmitted within one unit bandwidth, the common PRBs can be filled and transmitted. That is, for example, common PRBs and PSFCH PRBs are distributed as evenly as possible within one RB set to satisfy the OCB requirements. (Example 13) In one example, sufficient transmission power for one PSFCH PRB is guaranteed, the minimum transmission power for one PSFCH PRB is set to Pmini, and the transmission power for a common PRB can be reduced. Unlike Example 10, in this example, when it is determined that power is limited, the number and power of PSFCH transmissions can be guaranteed as much as possible, and the transmission power of the common PRB can also be reduced.

[0107]

number

[0108] Determining the value of N2 may be done as described in the previous example and may optionally include:

[0109]

number

[0110] For example, when selecting common PRBs to be transmitted, common PRBs that can satisfy the OCB requirements can be preferentially selected. For example, one RB set can be divided into several unit bandwidths, such as one RB set of 20 MHz and one unit bandwidth of 2 MHz / 5 MHz. If a PSFCH is to be transmitted within one unit bandwidth, the common PRBs within that unit bandwidth do not need to be transmitted. If a PSFCH is not to be transmitted within one unit bandwidth, the common PRBs can be filled and transmitted. That is, for example, common PRBs and PSFCH PRBs are distributed as evenly as possible within one RB set to satisfy the OCB requirements.

[0111] Note that the present disclosure addresses power control when a Sidelink device satisfies the OCB requirement when transmitting a PSFCH in an unlicensed frequency band. The following methods are available for different scenarios (with or without DL power control):

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

[0113] (2) Consider the decision of N2 and common RB in a scenario with multiple RB sets.

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

[0115] From the above description of the embodiments, those skilled in the art will understand that the methods according to the above-described examples can be realized by adding necessary general-purpose hardware functions to software, or by hardware, but in many cases, the former method is preferable. Based on this, the essence of the technical aspects of the present disclosure or a portion that contributes to the prior art can be realized in the form of a software product, and the computer software product is stored in a storage medium (e.g., ROM / RAM, magnetic disk, optical disk) that contains a plurality of instructions that cause a terminal device (which may be a mobile phone, computer, server, network device, etc.) to execute the method according to each example of the present disclosure.

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

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

[0118] the determination module 42 determines the number N2 of physical sidelink feedback channels PSFCHs that the terminal device UE simultaneously transmits in one PSFCH occasion and transmission powers of the PSFCHs, and determines common resource blocks corresponding to the N2 PSFCHs and transmission powers of the common resource blocks, by determining that N2 is equal to N1, or determining that N2 is equal to Nmax, or determining N2 PSFCHs from the N1 PSFCHs according to a priority of the PSFCHs, and determining that the transmission power of the PSFCHs is a demand power of the PSFCHs, or determining that the transmission power of the PSFCHs is X times a maximum power of the UE, or determining that the transmission power of the PSFCHs is a maximum or minimum value of the demand power and X times a maximum power of the UE, where X is a rational number equal to or less than 1; and transmitting the determined N2 PSFCHs and a common resource block corresponding to the N2 PSFCHs, wherein a sum of the transmit power of the common resource block and the transmit power of the N2 PSFCHs is equal to or less than a maximum power of the UE. The UE is configured to determine that the transmit power of the common resource block is a demand power of the common resource block, or to determine that the transmit power of the common resource block is Y times the maximum power of the UE, or to determine that the transmit power of the common resource block is a maximum or minimum value of the demand power of the common resource block and Y times the maximum power of the UE, where Y is a rational number equal to or less than 1, wherein 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.

[0119] The above-mentioned apparatus solves the problem in the related art of power control when a sidelink device cannot meet the OCB requirements when transmitting a PSFCH in an unlicensed frequency band, thereby enabling power control to meet the OCB requirements when the sidelink device transmits a PSFCH in an 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 PSFCHs to be transmitted in at least one of the following ways: N2 is equal to N1 if N1 is less than or equal to Nmax and the power for transmitting all N1 PSFCHs and common resource blocks corresponding to all N1 PSFCHs does not exceed a maximum power of the UE; determining Nmax PSFCHs from among the N1 PSFCHs according to a priority of the PSFCHs, N2 is equal to Nmax if N1 is greater than Nmax and the power for transmitting Nmax PSFCHs and common resource blocks corresponding to the Nmax PSFCHs does not exceed a maximum power of the UE; and determining N2 PSFCHs from among the N1 PSFCHs according to a priority of the PSFCHs.

[0121]

number

[0122] In one exemplary embodiment, the demand power of the PSFCH includes a PSFCH power determined by a set PSFCH power control parameter, and the demand power of the common resource block includes a 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 resulting from the transmission of one PSFCH to the occupied bandwidth resulting from the transmission of N2 PSFCHs and common resource blocks corresponding to the N2 PSFCHs, or X is equal to the ratio of the occupied bandwidth resulting from the transmission of one PSFCH to a first value, where the first value is the sum of the occupied bandwidth of the 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 blocks to the power spectral density of the PSFCH.

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

[0125] In one exemplary embodiment, one PSFCH of the N2 PSFCHs and a 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 that the UE is scheduled to transmit, or N1 is the number of PSFCHs that the UE is scheduled to transmit on one or more channels that the UE successfully accesses using the LBT process.

[0128] Each of the above modules can be implemented in software or hardware. When implemented in hardware, the modules can all be located in the same processor, or the modules can be located in different processors in any combination, but this is not limited to these.

[0129] An embodiment of the present disclosure further provides a computer-readable storage medium having a computer program stored thereon, the computer program being configured, when executed, to perform the steps of any of the method embodiments described above.

[0130] In one exemplary embodiment, the computer-readable storage medium may include, but is not limited to, various media capable of storing computer programs, 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.

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

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

[0133] For specific examples of this embodiment, reference may be made to the examples described in the above-mentioned embodiments and exemplary embodiments, and detailed descriptions thereof will be 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 the terminal device UE in one PSFCH occasion, the transmission power of the PSFCHs, and the transmission power of common resource blocks and common resource blocks corresponding to the N2 PSFCHs are expressed as follows: determining that N2 is equal to N1, or that N2 is equal to Nmax, or determining N2 PSFCHs from among the N1 PSFCHs according to a priority of the PSFCHs; determining that the transmission power of the PSFCH is a demand power of the PSFCH, or that the transmission power of the PSFCH is X times a maximum power of a UE, or that the transmission power of the PSFCH is a maximum or minimum value of the demand power and X times a maximum power of a UE, where X is a rational number less than or equal to 1; Transmitting the determined N2 PSFCHs and common resource blocks corresponding to the N2 PSFCHs, wherein a sum of transmission power of the common resource blocks and transmission power of the N2 PSFCHs is equal to or less than a maximum power of the UE; determining that the transmission power of the common resource block is the demand power of the common resource block, or that the transmission power of the common resource block is Y times the maximum power of the UE, or that the transmission power of the common resource block is the maximum or minimum value of the demand power of the common resource block and Y times the maximum power of the UE, where Y is a rational number less than or equal to 1; determining the The information determination method, wherein 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.

2. Determining the number N2 of transmitted physical sidelink feedback channels PSFCHs may be performed by: N2 is equal to N1 if N1 is less than or equal to 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; When N1 is greater than Nmax and the power for transmitting the Nmax PSFCHs and the common resource blocks corresponding to the Nmax PSFCHs does not exceed the maximum power of the UE, determine Nmax PSFCHs from among the N1 PSFCHs according to the priority of the PSFCHs, and N2 is equal to Nmax; and determining N2 PSFCHs from among the N1 PSFCHs according to a priority of the PSFCHs.

3. Determining N2 PSFCHs from among the N1 PSFCHs according to the priority of the PSFCHs includes: When a PSFCH including a HARQ-ACK is present among the N1 PSFCHs, transmitting the PSFCH including the HARQ-ACK in accordance with the priority order, and when a PSFCH including collision information is present, transmitting the PSFCH including the collision information in accordance with the priority order; N2 is 1 or greater, or [Equation 1] The method of claim 1 .

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

5. X is equal to the ratio of the occupied bandwidth by the transmission of one PSFCH to the occupied bandwidth of N2 PSFCHs and common resource blocks corresponding to the N2 PSFCHs, or 2. The information determination method according to claim 1, wherein X is equal to a ratio of an occupied bandwidth resulting from transmission of one PSFCH to a first value, the first value being a sum of the occupied bandwidth of N PSFCHs and m times the occupied bandwidth of common resource blocks corresponding to the N PSFCHs, and m being a ratio of a power spectral density of a common resource block to a power spectral density of the PSFCH.

6. Y is equal to the ratio of the occupied bandwidth due to the transmission of the common resource block to the occupied bandwidth due to the transmission of N2 PSFCHs and common resource blocks corresponding to the N2 PSFCHs, or 2. The information determination method according to claim 1, wherein Y is equal to a ratio of m times the occupied bandwidth resulting from transmission of the common resource blocks to a second value, the second value being the sum of the occupied bandwidth of N PSFCHs and m times the occupied bandwidth of common resource blocks corresponding to the N PSFCHs, and m being a ratio of a power spectral density of the common resource blocks to a power spectral density of the PSFCHs.

7. The information determination method according to claim 1 , further comprising the step of: locating one PSFCH among the N 2 PSFCHs and a common resource block corresponding to the one PSFCH in the same RB set. [Request Item 8] [Number 2] The information determination method of claim 7.

9. 2. The information determination method of claim 1, further comprising the step of: N1 being the number of PSFCHs that the UE is scheduled to transmit; or N1 being the number of PSFCHs that the UE is scheduled to transmit on one or more channels that the UE normally accesses using an LBT process.

10. The information determination method of claim 4, wherein the set PSFCH power control parameters include dl-P0-PSFCH and dl-Alpha-PSFCH parameters.

11. The method of claim 10, wherein the common resource block and the PSFCH use the same dl-P0-PSFCH, dl-Alpha-PSFCH parameters, but the power of one PRB in the common resource block is X times the power of one PSFCH PRB or is offset by Y.

12. The information determination method according to claim 8, wherein the common PRBs and the PSFCH PRBs are evenly distributed within one RB set so as to satisfy the requirement of the occupied bandwidth OCB.

13. The number N2 of physical sidelink feedback channels PSFCHs simultaneously transmitted by the terminal device UE in one PSFCH occasion, the transmission power of the PSFCHs, and the transmission power of common resource blocks and common resource blocks corresponding to the N2 PSFCHs are expressed as follows: determining that N2 is equal to N1, or that N2 is equal to Nmax, or determining N2 PSFCHs from among the N1 PSFCHs according to a priority of the PSFCHs; determining that the transmission power of the PSFCH is a demand power of the PSFCH, or that the transmission power of the PSFCH is X times a maximum power of a UE, or that the transmission power of the PSFCH is a maximum or minimum value of the demand power and X times a maximum power of a UE, where X is a rational number less than or equal to 1; Transmitting the determined N2 PSFCHs and common resource blocks corresponding to the N2 PSFCHs, wherein a sum of transmission power of the common resource blocks and transmission power of the N2 PSFCHs is equal to or less than a maximum power of the UE; a determination module configured to determine that the transmission power of the common resource block is a demand power of the common resource block, or that the transmission power of the common resource block is Y times a maximum power of the UE, or that the transmission power of the common resource block is a maximum or minimum value of the demand power of the common resource block and Y times a maximum power of the UE, where Y is a rational number less than or equal to 1; The information determining apparatus, wherein 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.

14. A computer program configured to carry out the method according to any one of claims 1 to 9.

15. An electronic device comprising a memory and a processor, wherein a computer program is stored in the memory, and wherein the processor is configured to execute the computer program in order to perform the method of any one of claims 1 to 9.

Images