Information determination methods and apparatus, storage media and electronic devices

Abstract

This invention provides an information determination method and apparatus, a storage medium, and an electronic device. The information determination method includes: determining the number N2 of Physical Sidelink Feedback Channels (PSFCHs) simultaneously transmitted by a terminal device (UE) in a PSFCH occasion and the transmit power of the PSFCHs, and determining the common resource blocks and transmit power of the common resource blocks corresponding to the N2 PSFCHs by: determining that N2 equals N1, or determining that N2 equals Nmax, or determining N2 PSFCHs from the N1 PSFCHs according to the priority order of the PSFCHs; determining that the transmit power of the PSFCH is the required power of the PSFCH, or determining that the transmit power of the PSFCH is X times the maximum power of the UE, or determining that the transmit power of the PSFCH is the maximum or minimum value among the required power and X times the maximum power of the UE; transmitting the determined N2 PSFCHs and the common resource blocks corresponding to the N2 PSFCHs; and determining that the transmit power of the common resource blocks is the transmit power offset Y of the PSFCHs, where Y is a network configuration or pre-configured value.

Description

Technical Field

[0001] The embodiments of the present invention relate to the field of communications, and more specifically, to an information determination method and apparatus, a storage medium and an electronic device. Background Technology

[0002] According to current standards meetings, for Physical Sidelink Control Channels (PSFCHs) to meet the occupied channel bandwidth (OCB) requirements, simply using an interlace resource block (IRB) structure would consume a large amount of frequency domain resources. For example, an IRB contains at least 10 PRBs, which would ultimately reduce the number of PSFCHs that can be transmitted on a PSFCHoccasion, affecting the capacity of the PSFCHs. One solution is to divide the frequency domain resources on the PSFCHoccasion into two categories: common RB resources and resources used to carry feedback information. For common RB resources, if multiple UEs transmit PSFCH in the same occasion, these UEs all occupy the same common RB resource to transmit signals to satisfy the OCB requirement. Thus, regardless of how many UEs transmit simultaneously, the overhead for satisfying the OCB requirement is only one instance—the common RB resource. For resources carrying feedback information, resource mapping typically allows different UEs to use different resources to feed back their respective information, similar to traditional PSFCH resources. By combining these two types of resources, the overhead of satisfying the OCB can be well controlled, and excessive impact on PSFCH capacity can be avoided.

[0003] However, the above methods still have many problems to be solved. First, the current power control of PSFCH is not applicable to the above process, and the above technology does not take into account the case where the resource pool frequency domain includes multiple channels (multiple channels or multiple RB sets), so related processes need to be designed.

[0004] Direct communication, also known as sidelink (SL) communication, will be referred to as SL communication for all direct communication in the future. SL communication currently operates on licensed or dedicated frequency bands. For example, vehicle-to-anything (V2X) communication can operate on frequency bands specifically designated for V2X. In recent years, with the development of SL communication, the demand for SL transmission in traditional unlicensed bands has become increasingly strong. Before transmitting SL in unlicensed bands, a channel access process, generally called a listen-before-talk (LBT) process, is required according to relevant frequency band usage specifications to avoid interference with other systems. Generally, if the channel resources are determined to be idle within the detection duration corresponding to the LBT process (LBT successful), the UE can continue transmitting; otherwise, the UE needs to abandon transmission.

[0005] In some regions, occupying unlicensed spectrum requires meeting the Channel Occupied Bandwidth (OCB) requirement. This means that if a device wants to access a channel for transmission, the transmitted signal must occupy at least 80% of that channel's bandwidth. For example, if a channel is 20MHz, the transmitted signal generally needs to span at least 16MHz of bandwidth in the frequency domain. For some signals / channels in the SL (Single-Side Link) architecture, the OCB requirement must also be met. This includes the Physical Sidelink Feedback Channel (PSFCH). The PSFCH typically carries only a very small number of bits and occupies a very small bandwidth, such as a PRB (Physical Resource Block). For the PSFCH, its transmission bandwidth needs to be modified to meet the OCB requirement, and its power control also needs to be modified to adapt to the new transmission bandwidth. Furthermore, considering that a UE can transmit multiple PSFCHs on multiple channels, a comprehensive power control scheme for PSFCHs on multiple channels needs to be designed. Summary of the Invention

[0006] This invention provides an information determination method and apparatus, a storage medium and an electronic device, to at least solve the power control problem in related technologies when sidelink devices cannot meet OCB requirements when transmitting PSFCH in unlicensed frequency bands.

[0007] According to an embodiment of the present invention, an information determination method is provided, comprising: determining the number N2 of Physical Sidelink Feedback Channels (PSFCHs) simultaneously transmitted by a terminal device (UE) in a PSFCH occasion and the transmit power of the PSFCHs, and determining the common resource blocks corresponding to the N2 PSFCHs and the transmit power of the common resource blocks by: determining that N2 equals N1, or determining that N2 equals Nmax, or determining N2 PSFCHs from the N1 PSFCHs according to the priority order of the PSFCHs; determining that the transmit power of the PSFCH is the required power of the PSFCH, or determining that the transmit power of the PSFCH is X times the maximum power of the UE, or determining that the transmit power of the PSFCH is the required power and the maximum power of the UE. The maximum or minimum value among X times the maximum power of the UE, where X is a rational number not greater than 1; send a determined N2 PSFCHs and the common resource blocks corresponding to the N2 PSFCHs, where the transmit power of the common resource blocks plus the transmit power of the N2 PSFCHs is less than or equal to the maximum power of the UE; determine the transmit power of the common resource blocks as the transmit power offset Y of the PSFCHs, where Y is a network configuration or pre-configured value; where N1 is the number of PSFCHs that need to be sent in a PSFCHoccasion, and Nmax is the maximum number of PSFCHs that can be sent in a PSFCH occasion.

[0008] In an exemplary embodiment, determining the number N2 of physical sidelink feedback channels (PSFCHs) to be transmitted includes at least one of the following: if N1 is less than or equal to Nmax, and the transmission of N1 PSFCHs and the common resource blocks corresponding to the N1 PSFCHs does not exceed the maximum power of the UE, then N2 equals N1; if N1 is greater than Nmax, and the transmission of 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 the N1 PSFCHs according to the priority order of the PSFCHs, and N2 equals Nmax; and N2 PSFCHs are determined from the N1 PSFCHs according to the priority order of the PSFCHs.

[0009] In an exemplary embodiment, determining N2 PSFCHs from N1 PSFCHs according to their priority order includes: if any of the N1 PSFCHs carries a HARQ-ACK, sending the HARQ-ACK-carrying PSFCH according to the priority order; and if any PSFCH carries conflict information, then sending the conflict information according to the priority order; wherein N2 is greater than or equal to 1; or N2 is greater than or equal to Wherein, the M i The number of PSFCHs carrying HARQ-ACK with priority i or the number of PSFCHs carrying collision information with priority i-8; where, if there exists K satisfying the transmission... PSFCH and the aforementioned If the common resource block corresponding to each PSFCH does not exceed the maximum power of the UE, then K takes the maximum value among the values ​​that satisfy the condition. If no K satisfies the transmission condition... PSFCH and the aforementioned If the common resource block corresponding to each PSFCH does not exceed the maximum power of the UE, then K equals 0.

[0010] In an exemplary embodiment, the PSFCH power requirement includes: the PSFCH power determined by the configured PSFCH power control parameters; the common resource block power requirement includes: the common resource block power determined by the configured PSFCH power control parameters or the common resource block power control parameters.

[0011] In an exemplary embodiment, X is equal to the ratio of the bandwidth occupied by sending one PSFCH to the bandwidth occupied by sending N2 PSFCHs and the common resource blocks corresponding to the N2 PSFCHs; or X is equal to the ratio of the bandwidth occupied by sending one PSFCH to a first value, wherein the first value is the sum of the bandwidth occupied by N2 PSFCHs and m times the bandwidth occupied by 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.

[0012] In an exemplary embodiment, the method further includes: one of the N2 PSFCHs and the common resource block corresponding to the one PSFCH are located on the same RB set.

[0013] In an exemplary embodiment, the method further includes: the number of common PRBs included in a common resource block i of RB set i is... Among them, the number of common PRBs included in the common resource blocks corresponding to different RB sets and their relative frequency domain positions on the RB set are the same or different.

[0014] In an exemplary embodiment, the method further includes: N1 being the number of PSFCHs scheduled to be transmitted by the UE; or N1 being the number of PSFCHs scheduled to be transmitted on one or more channels that the UE successfully accesses using the LBT procedure.

[0015] According to another embodiment of the present invention, an information determination apparatus is provided, comprising: a determination module, configured to determine the number N2 of Physical Sidelink Feedback Channels (PSFCHs) simultaneously transmitted by a terminal device (UE) in a PSFCH occasion and the transmit power of the PSFCHs, and to determine the common resource blocks corresponding to the N2 PSFCHs and the transmit power of the common resource blocks by: determining that N2 equals N1, or determining that N2 equals Nmax, or determining N2 PSFCHs from the N1 PSFCHs according to the priority order of the PSFCHs; determining that the transmit power of the PSFCHs is the required power of the PSFCHs, or determining that the transmit power of the PSFCHs is X times the maximum power of the UE, or determining that the transmit power of the PSFCHs is X times the maximum power of the UE. The transmit power of the PSFCH is the maximum or minimum of X times the required power and the UE's maximum power, where X is a rational number not greater than 1; N2 PSFCHs and the corresponding common resource blocks for the N2 PSFCHs are transmitted, wherein the transmit power of the common resource blocks plus the transmit power of the N2 PSFCHs is less than or equal to the UE's maximum power; the transmit power of the common resource blocks is determined as the transmit power offset Y of the PSFCHs, where Y is a network configuration or pre-configured value; wherein N1 is the number of PSFCHs that need to be transmitted in a PSFCH occasion, and Nmax is the maximum number of PSFCHs that can be transmitted in a PSFCH occasion.

[0016] According to yet another embodiment of the present invention, a computer-readable storage medium is also provided, wherein a computer program is stored therein, wherein the computer program is configured to perform the steps in any of the above method embodiments when executed.

[0017] According to yet another embodiment of the present invention, an electronic device is also provided, including a memory and a processor, wherein the memory stores a computer program and the processor is configured to run the computer program to perform the steps in any of the above method embodiments.

[0018] Through this invention, the number N2 of Physical Sidelink Feedback Channels (PSFCHs) simultaneously transmitted by a terminal device (UE) in a PSFCH occasion and the transmit power of the PSFCHs are determined by the following methods, as well as the common resource blocks and transmit power corresponding to the N2 PSFCHs: N2 is determined to be equal to N1, or N2 is determined to be equal to Nmax, or N2 PSFCHs are determined from the N1 PSFCHs according to their priority order; the transmit power of the PSFCHs is determined to be the required power of the PSFCHs, or the transmit power of the PSFCHs is determined to be X times the maximum power of the UE, or the transmit power of the PSFCHs is determined to be... The transmit power of the PSFCH is the maximum or minimum of X times the required power and the UE's maximum power, where X is a rational number not greater than 1. N² PSFCHs and corresponding common resource blocks are transmitted, where the transmit power of the common resource blocks plus the transmit power of the N² PSFCHs is less than or equal to the UE's maximum power. The transmit power of the common resource blocks is determined as the transmit power offset Y of the PSFCHs, where Y is a network configuration or pre-configured value. N¹ is the number of PSFCHs that need to be transmitted in a single PSFCH occasion, and Nmax is the maximum number of PSFCHs that can be transmitted in a single PSFCH occasion. This solves the power control problem in related technologies where sidelink devices cannot meet OCB requirements when transmitting PSFCHs in unlicensed frequency bands, enabling power control when sidelink devices meet OCB requirements when transmitting PSFCHs in unlicensed frequency bands. Attached Figure Description

[0019] Figure 1 This is a hardware structure block diagram of a mobile terminal for an information determination method according to an embodiment of the present invention.

[0020] Figure 2 This is a flowchart of an information determination method according to an embodiment of the present invention;

[0021] Figure 3 This is a schematic diagram of an information determination method according to an embodiment of the present invention;

[0022] Figure 4 This is a structural block diagram of an information determination device according to an embodiment of the present invention. Detailed Implementation

[0023] The embodiments of the present invention will be described in detail below with reference to the accompanying drawings and examples.

[0024] It should be noted that the terms "first," "second," etc., in the specification, claims, and drawings of this invention are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence.

[0025] The methods and embodiments provided in this invention can be executed on a mobile terminal, a computer terminal, or a similar computing device. Taking running on a mobile terminal as an example, Figure 1 This is a hardware structure block diagram of a mobile terminal for an information determination method according to an embodiment of the present invention. For example... Figure 1 As shown, a mobile terminal may include one or more ( Figure 1 Only one is shown in the diagram. A processor 102 (which may include, but is not limited to, a microprocessor MCU or a programmable logic device FPGA, etc.) and a memory 104 for storing data are also shown. The mobile terminal may further include a transmission device 106 for communication functions and an input / output device 108. Those skilled in the art will understand that... Figure 1 The structure shown is for illustrative purposes only and does not limit the structure of the mobile terminal described above. For example, the mobile terminal may also include components that are more... Figure 1 The more or fewer components shown, or having the same Figure 1 The different configurations shown.

[0026] The memory 104 can be used to store computer programs, such as application software programs and modules, like the computer program corresponding to the information determination method in this embodiment of the invention. The processor 102 executes various functional applications and data processing by running the computer program stored in the memory 104, thereby implementing the above-described method. 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 instances, the memory 104 may further include memory remotely located relative to the processor 102, and these remote memories can be connected to the mobile terminal via a network. Examples of such networks include, but are not limited to, the Internet, corporate intranets, local area networks, mobile communication networks, and combinations thereof.

[0027] The transmission device 106 is used to receive or send data via a network. Specific examples of the network described above may include a wireless network provided by the mobile terminal's communication provider. In one example, the transmission device 106 includes a Network Interface Controller (NIC), which can connect to other network devices via a base station to communicate with the Internet. In another example, the transmission device 106 may be a Radio Frequency (RF) module used for wireless communication with the Internet.

[0028] This embodiment provides an information determination method running on a mobile terminal. Figure 2 This is a flowchart of an information determination method according to an embodiment of the present invention, such as... Figure 2 As shown, the process includes the following steps:

[0029] Step S202: Determine the number N2 of Physical Sidelink Feedback Channels (PSFCHs) simultaneously transmitted by the terminal device UE in a PSFCH occasion, the transmit power of the PSFCHs, and the common resource blocks and transmit power of the corresponding N2 PSFCHs using the following methods:

[0030] It should be noted that the common resource block includes the common RB.

[0031] Determine that N2 equals N1, or determine that N2 equals Nmax, or determine N2 PSFCHs from N1 PSFCHs according to the priority order of PSFCHs.

[0032] It should be noted that determining N2 PSFCHs means determining N2.

[0033] The transmit power of the PSFCH is determined to be the required power of the PSFCH, or the transmit power of the PSFCH is determined to be X times the maximum power of the UE, or the transmit power of the PSFCH is determined to be the maximum or minimum value of the required power and X times the maximum power of the UE, where X is a rational number not greater than 1;

[0034] Send a determined set of N2 PSFCHs and the common resource blocks corresponding to the N2 PSFCHs, wherein the transmit power of the common resource blocks plus the transmit power of the N2 PSFCHs is less than or equal to the maximum power of the UE;

[0035] The transmit power of the common resource block is determined to be either the required power of the common resource block, or Y times the maximum power of the UE, or the maximum or minimum value between the required power of the common resource block and Y times the maximum power of the UE, where Y is a rational number not greater than 1; or the transmit power offset Y of the PSFCH of the common resource block is determined, where the transmit power offset Y is a network configuration or pre-configured value, and N1 is the number of PSFCHs that need to be transmitted in a PSFCHoccasion, and Nmax is the maximum number of PSFCHs that can be transmitted in a PSFCH occasion.

[0036] The above steps solve the power control problem in related technologies when the PSFCH transmitted by the side link device in the unlicensed frequency band cannot meet the OCB requirements, thus enabling the power control of the side link device when the PSFCH transmitted in the unlicensed frequency band meets the OCB requirements.

[0037] In an exemplary embodiment, determining the number N2 of Physical Side Link Feedback Channels (PSFCHs) to be transmitted includes at least one of the following: if N1 is less than or equal to Nmax, and transmitting all N1 PSFCHs and the common resource blocks corresponding to all N1 PSFCHs does not exceed the maximum power of the UE, then N2 equals N1; if N1 is greater than Nmax, and 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 the N1 PSFCHs according to the priority order of the PSFCHs, and N2 equals Nmax; N2 PSFCHs are determined from the N1 PSFCHs according to the priority order of the PSFCHs.

[0038] In an exemplary embodiment, determining N2 PSFCHs from N1 PSFCHs according to their priority order includes: if any of the N1 PSFCHs carries a HARQ-ACK, sending the HARQ-ACK-carrying PSFCH according to the priority order; and if any PSFCH carries conflict information, then sending the conflict information according to the priority order; wherein N2 is greater than or equal to 1; or N2 is greater than or equal to Wherein, the M i The number of PSFCHs carrying HARQ-ACK with priority i or the number of PSFCHs carrying collision information with priority i-8; where, if there exists K satisfying the transmission... PSFCH and the aforementioned If the common resource block corresponding to each PSFCH does not exceed the maximum power of the UE, then K takes the maximum value among the values ​​that satisfy the condition. If no K satisfies the transmission condition... PSFCH and the aforementioned If the common resource block corresponding to each PSFCH does not exceed the maximum power of the UE, then K equals 0.

[0039] It should be noted that K satisfying the condition means K satisfying the sending condition. PSFCH and the aforementioned The condition that the common resource block corresponding to each PSFCH does not exceed the maximum power of the UE.

[0040] In an exemplary embodiment, the PSFCH power requirement includes: the PSFCH power determined by the configured PSFCH power control parameters; the common resource block power requirement includes: the common resource block power determined by the configured PSFCH power control parameters or the common resource block power control parameters.

[0041] In an exemplary embodiment, X is equal to the ratio of the bandwidth occupied by sending one PSFCH to the bandwidth occupied by sending N2 PSFCHs and the common resource blocks corresponding to the N2 PSFCHs; or X is equal to the ratio of the bandwidth occupied by sending one PSFCH to a first value, wherein the first value is the sum of the bandwidth occupied by N2 PSFCHs and m times the bandwidth occupied by 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.

[0042] In an exemplary embodiment, Y times the UE maximum power is equal to the ratio of the bandwidth occupied by transmitting the common resource block to the bandwidth occupied by transmitting N2 PSFCHs and the common resource block corresponding to the N2 PSFCHs; or, Y is equal to the ratio of m times the bandwidth occupied by transmitting the common resource block to a second value, wherein the second value is the sum of the bandwidth occupied by N2 PSFCHs and m times the bandwidth occupied by the common resource block 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.

[0043] In an exemplary embodiment, the method further includes: one of the N2 PSFCHs and the common resource block corresponding to the one PSFCH are located on the same RB set.

[0044] It should be noted that if the UE needs to send the N2 PSFCHs on multiple RB sets, then it needs to send the common RB on each RB set.

[0045] In an exemplary embodiment, the method further includes: the number of common PRBs included in a common resource block i of RB set i is... Among them, the number of common PRBs included in the common resource blocks corresponding to different RB sets and their relative frequency domain positions on the RB set are the same or different.

[0046] In an exemplary embodiment, the method further includes: N1 being the number of PSFCHs scheduled to be transmitted by the UE; or N1 being the number of PSFCHs scheduled to be transmitted on one or more channels that the UE successfully accesses using the LBT procedure.

[0047] Obviously, the embodiments described above are merely some embodiments of the present invention, and not all embodiments. To better understand the above method, the following description, in conjunction with embodiments, illustrates the process, but is not intended to limit the technical solutions of the embodiments of the present invention. Specifically:

[0048] The present invention addresses the scenario where a device (UE) needs to transmit N1 PSFCHs on a PSFCH occasion in a resource pool. The maximum number of PSFCHs that the UE can transmit on a PSFCH occasion is Nmax. The present invention provides a method for determining the final number of PSFCHs N2 that the UE can transmit, determining the transmit power of these N2 PSFCHs, and determining the transmit power of the common RB corresponding to the N2 PSFCHs.

[0049] In one embodiment, the resource pool may include multiple RB sets, which will be referred to as channels below. If the UE needs to transmit on multiple RB sets, it needs to meet the OCB requirements on each RB set. That is, in one instance, a common RB needs to be transmitted on each transmitted RB set. These common RBs can also be called a special PSFCH. However, in order to distinguish them from ordinary PSFCH, we will refer to the channels / signals used to extend PSFCH to meet the OCB requirements below.

[0050] In one embodiment, N1 is the number of PSFCHs scheduled for transmission by the UE. In another embodiment, N1 is the number of PSFCHs scheduled for transmission on one or more channels that the UE successfully accesses using the LBT procedure.

[0051] In one embodiment, determining the transmit power of the common RB corresponding to N2 PSFCHs includes determining M(N2) RB sets containing the N2 PSFCHs, and for each RB set, determining the transmit power of its common RB or common PRB. It should be noted that a common RB includes one or more common PRBs within an RB set.

[0052] Wherein, the number of common PRBs included in a common RB set i is That is, a common RB includes A common RB can be a continuous or discrete PRB. The number of common PRBs included in a common RB across different RB sets, and their relative frequency domain positions within the RB set, can be the same or different. For example, in one instance, a common RB can be a frequency-domain discrete IRB (interlace resource block), and common RBs on different RB sets correspond to the same IRB number (in this case, the number of PRBs included in each common RB can also be the same or different). In another instance, common RBs on different RB sets correspond to different IRB numbers (in this case, the number of PRBs included in each common RB can also be the same or different).

[0053] In one exemplary embodiment, such as Figure 3 As shown, if the UE needs to send one or more PSFCHs on channel 1, then in order to meet the requirements of OCB, it needs to send common RB or common PRB on channel 1.

[0054] The specific method for determining the final number N2 PSFCHs that the UE can transmit, the method for determining the transmit power of these N2 PSFCHs, and the method for determining the transmit power of the common RB corresponding to the N2 PSFCHs have the following steps:

[0055] Step 1: Determine the required power of the N1 PSFCHs to be transmitted and their corresponding common RBs. For example, for a psfch, it could be P in the instance. PSFCH,one Pmini, for common RB can be P comm X*Pmin, where X equals 1 is a special case; or, as in examples 8 and 9 below, it is only necessary to determine the power ratio between the PRB of the PSFCH to be sent and the PRB of the common RB.

[0056] Step 2: If N1 is less than or equal to Nmax, and sending all N1 PSFCHs and their corresponding common RBs does not exceed the total power, then N2 equals N1. Alternatively, if sending Nmax PSFCHs 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 priority), then N2 equals Nmax. For other scenarios, N2 PSFCH machines and their corresponding common RBs are selected according to priority for transmission, ensuring that the transmission power does not exceed the maximum total power.

[0057] Step 3: Send the determined N2 PSFCHs to be sent and their corresponding common RBs, and determine their transmit power, for example, the required power of the above PSFCHs.

[0058] Scene 1

[0059] In this scenario, it is assumed that downlink (DL) based PSFCH power control is enabled, meaning that the downlink power control parameter dl-P0-PSFCH is configured or provided.

[0060] The reference or required power P for PSFCH transmission is determined based on downlink power control parameters. PSFCH,one Specifically, it is the same as the current protocol method:

[0061] P PSFCH,one =P O,PSFCH +10log 10 (2 μ )+α PSFCH ·PL;

[0062] Among them, P O,PSFCH Indicated by dl-P0-PSFCH, α PSFCH The value is indicated by dl-Alpha-PSFCH or equal to 1, μ is determined by the currently used subcarrier spacing (SCS), and PL is the path loss measured based on a reference signal (RS).

[0063] Example 1

[0064] The transmit power P of a PRB in a Common RB is determined based on downlink power control parameters. comm_one Further determine the power P transmitted by a Common RB. comm :

[0065] In one instance, the common RB and PSFCH use the same dl-P0-PSFCH and dl-Alpha-PSFCH parameters. Therefore, the transmit power of a PRB within the common RB is equal to the power of a PRB within the aforementioned PSFCH.

[0066] P comm_one =P PSFCH,one =P O,PSFCH +10log 10 (2 μ )+α PSFCH ·PL;

[0067] Furthermore, the reference or required power P of a common RB i corresponding to an RB set i. comm,i for:

[0068]

[0069] Among them, P O,PSFCH Indicated by dl-P0-PSFCH, α PSFCH The value is indicated by dl-Alpha-PSFCH or equal to 1, μ is determined by the currently used subcarrier spacing (SCS), and PL is the path loss measured based on a reference signal (RS). The number of PRBs included in common RB i.

[0070] In another instance, the common RB and PSFCH use the same dl-P0-PSFCH, dl-Alpha-PSFCH parameters, but the power of a PRB in the common RB is X times the power of a PRB in the PSFCH, or offset by Y, P comm_one =P PSFCH,one +10log 10 X, or P comm_one =P PSFCH,one +Y.

[0071] Where X and Y can be predefined by the protocol or configured by the network or base station. Pre-configuration can reduce the power allocated by the common RB by configuring an X value less than 1 or a negative Y value. Then, the reference or required power P of the common RB i corresponding to an RB set i is... comm,i for:

[0072]

[0073] or

[0074]

[0075] Among them, P O,PSFCH Indicated by dl-P0-PSFCH, α PSFCH The value is indicated by dl-Alpha-PSFCH or equal to 1, μ is determined by the currently used subcarrier spacing SCS, and PL is the path loss measured based on a reference signal RS. Let commonRB i be the number of PRBs included in commonRB i.

[0076] It is evident that the power of a common RB i has a fixed relationship with the power of each PRB it contains; the two are essentially equivalent. The linear power of common RB i is obtained by linearly adding the power of each PRB.

[0077] Example 2

[0078] In another example, the power P transmitted by a PRB in a Common RB is determined based on downlink power control parameters. comm_one The common RB uses separately configured P0 and Alpha downlink power control parameters, namely:

[0079] P comm_one =P O,common +10log 10 (2 μ )+α common ·PL;

[0080] The advantage of this approach is that it allows more power to be allocated to the PSFCH, preventing the common RBs from consuming too much power. Here, the parameters dl-P0-common and dl-Alpha-common represent the reference or required power P of the common RB i corresponding to an RB set i. comm,i for:

[0081]

[0082] Among them, P O,common Indicated by dl-P0-common, α PSFCH The value is indicated by dl-Alpha-common or equal to 1, μ is determined by the currently used subcarrier spacing SCS, and PL is the path loss measured based on a reference signal RS. The number of PRBs included in common RB i.

[0083] Example 3

[0084] In one instance, the power control parameters can also be directly configured to set the power P transmitted by a PRB of the Common RB. comm_one The common RB uses directly configured power, rather than calculating based on power control parameters such as P0 and Alpha. This allows more power to be allocated to the PSFCH, preventing the common RB from consuming excessive power. For example, based on the configured P... comm_one We can obtain the reference or required power P of common RB i corresponding to RB set i. comm,iYou can directly configure the transmit power or its power spectral density (PSD, which represents power per unit bandwidth, such as EPRE, Energy Per Resource Element), or configure it in relation to the UE's maximum transmit power P. CMAX The ratio, for example, can be y / X times the maximum transmit power, and generally y / X is less than 1.

[0085] It should be noted that Examples 1 to 3 only calculate the transmit power of a PSFCH and a common RB. Example 4 begins to describe the process of determining N2 and the common RB to be transmitted.

[0086] Example 4

[0087] If N1 is less than or equal to Nmax, and the transmit power of N1 PSFCHs plus the transmit power of all common RBs to be transmitted does not exceed P. CMAX That is, the conditions are met:

[0088]

[0089] Where M(N1) is the number of RB sets or channels containing N1 PSFCHs, as described above P comm,i Let P be the transmit power of the common RB on RBset i. If the power of the common RBs on M (N1) RB sets is the same, then P is equal to P. comm The above formula can be simplified to:

[0090] 10log 10 (N1*10^(P PSFCH,one / 10)+M(N1)*10^(P comm / 10))≤P CMAX ;

[0091] If the above conditions are met, then N2 = N1, and the transmission power of one of the PSFCH k is equal to P. PSFCH,one The transmit power of a PRB on a common RB is equal to the P determined in Examples 1 to 3 above. comm_one Therefore, the transmit power of a commonRB i is equal to the P determined in Examples 1 to 3 above. comm,i .

[0092] It should be noted that in this invention, * is used to represent multiplication.

[0093] Example 5

[0094] If N1 is less than or equal to Nmax, but the transmit power of N1 PSFCHs plus the transmit power of all common RBs to be transmitted exceeds P... CMAX If the condition in Example 4 is not met, then:

[0095] The UE determines the transmission process of N2 PSFCHs as follows: First, if there is a PSFCH carrying HARQ-ACK, it should be sent in priority order (from lowest to highest priority value). Then, if there is a PSFCH carrying collision information, it should be sent in priority order (from lowest to highest priority value), ensuring... Where, for 1≤i≤8, M i Let i be the number of PSFCHs with priority value i and carrying HARQ-ACK. For i > 8, i.e., 8 <i≤16,M i K is the number of PSFCHs with priority value i-8 that carry conflict information, where K is the maximum value that satisfies the following condition. If no K satisfies the following condition, then K equals 0:

[0096]

[0097] Where M(K) represents the subset of K that it contains. or The number of RBsets occupied by each PSFCH, i.e., the number of common RBs to be sent.

[0098] This condition can be described as follows: according to the above priority order, K is the condition for satisfying the launch. The total power of each PSFCH and its corresponding M(K) common RBs does not exceed P CMAX The largest K value.

[0099] In one instance, once the N2 value is determined, the transmit power for one of the PSFCH k is equal to P. PSFCH,one Alternatively, it equals the maximum power minus the power occupied by the common RB, then evenly distributed across N² PSFCHs.

[0100]

[0101] Where M(N2) is the number of RB sets occupied by the selected N2 PSFCHs, that is, the number of common RBs to be sent. Alternatively, M(N2) is equal to the maximum or minimum of the above two values.

[0102] In one instance, the transmit power of a PSFCH k can also be equal to the following value:

[0103] min(P CMAX -10log 10 (N2),P PSFCH,one ).

[0104] In one instance, once the above N2 value is determined, then:

[0105] The transmit power of a PRB on one of the common RBs is equal to P in the example above. comm_one Alternatively, the power of a PRB on a common RB is equal to the maximum power minus the power occupied by the PSFCH, and then evenly distributed across the common RB according to the same power spectral density. That is, the power of a PRB on a common RB is equal to...

[0106]

[0107] Alternatively, the power of a PRB of a common RB is equal to the maximum or minimum of the two mentioned above.

[0108] In one instance, the transmit power of a PRB on a common RB is equal to the following value:

[0109]

[0110] It should be noted that the examples 5a, 7a, and 7b below refer to ensuring the transmission power and number of PSFCHs when power is limited, thereby reducing the power or number of common PRBs.

[0111] Example 5a

[0112] If N1 is less than or equal to Nmax, and:

[0113] (1) The transmit power of N1 PSFCHs plus the transmit power of all common RBs to be transmitted exceeds P CMAX That is, the conditions in Example 4 are not met.

[0114] (2) The transmit power of N1 PSFCHs does not exceed P CMAX .

[0115] The UE sends N1 PSFCHs, i.e., N2 = N1, and the transmit power of one of the PSFCHs k is equal to P. PSFCH,one And allocate the remaining power to the common RB.

[0116] In one instance, the remaining power, i.e., the maximum power minus the power used by N2 PSFCHs, is allocated to the common PRB to be transmitted. This includes first determining the power P of the common PRB according to Examples 1 to 3. comm_one Then, without exceeding the maximum power, determine the maximum number L of common PRBs that can be transmitted. For example, divide the linear value of the remaining power by the linear power of the common PRBs and round down to obtain L. The UE can select no more than L common PRBs for transmission, and the transmission power of each common PRB is P. comm_one .

[0117] In one instance, the remaining power, i.e., the maximum power minus the power used by N2 PSFCHs, is allocated to the common RBs to be transmitted. This involves first determining the M(N2) common RBs corresponding to the N2 PSFCHs, and then determining the number of common PRBs included in the M(N2) common RBs. Finally, the remaining power is evenly distributed to On a common PRB.

[0118] Example 6

[0119] If N1 is greater than Nmax, and the transmit power of the Nmax PSFCHs selected according to the above priority order plus the transmit power of all common RBs to be transmitted does not exceed P... CMAX That is, the following conditions must be met:

[0120]

[0121] Where M(Nmax) is the number of RB sets or channels containing the selected Nmax PSFCHs, as described above P comm,i The transmit power of the common RB on RB set i.

[0122] If the above conditions are met, then N2 = Nmax, and the transmit power of one of the PSFCH k is equal to P. PSFCH,one The transmit power of a PRB on a common RB is equal to the P determined in Examples 1 to 3 above. comm_one Therefore, the transmit power of a commonRB i is equal to the P determined in Examples 1 to 3 above. comm,i .

[0123] Example 7

[0124] If N1 is greater than Nmax, and the transmit power of the Nmax PSFCHs selected according to the above priority order plus the transmit power of all common RBs to be transmitted exceeds P... CMAX If the conditions described in Example 6 are not met, then:

[0125] The UE determines the transmission process of N2 PSFCHs as follows: First, if there is a PSFCH carrying HARQ-ACK, it should be sent in priority order (from lowest to highest priority value). Then, if there is a PSFCH carrying collision information, it should be sent in priority order (from lowest to highest priority value), ensuring... Where, for 1≤i≤8, M i Let i be the number of PSFCHs with priority value i and carrying HARQ-ACK. For i > 8, i.e., 8 <i≤16,M i K is the number of PSFCHs with priority value i-8 that carry conflict information, where K is the maximum value that satisfies the following condition. If no K satisfies the following condition, then K equals 0:

[0126]

[0127] Where M(K) represents the subset of K that it contains. or The number of RBsets occupied by each PSFCH, i.e., the number of common RBs to be sent.

[0128] This condition can be described as follows: according to the above priority order, K is the condition for satisfying the launch. The total power of each PSFCH and its corresponding M(K) common RBs does not exceed P CMAX The largest K value.

[0129] In one instance, once the N2 value is determined, the transmit power for one of the PSFCH k is equal to P. PSFCH,one Alternatively, it equals the maximum power minus the power occupied by the common RB, then evenly distributed across N² PSFCHs.

[0130]

[0131] Where M(N2) is the number of RB sets occupied by the selected N2 PSFCHs, that is, the number of common RBs to be sent. Alternatively, M(N2) is equal to the maximum or minimum of the above two values.

[0132] In one instance, the transmit power of a PSFCH k can also be equal to the following value:

[0133] min(P CMAX -10log 10 (N2),P PSFCH,one ).

[0134] In one instance, once the above N2 value is determined, then:

[0135] The transmit power of a PRB on one of the common RBs is equal to P in the example above. comm_one Alternatively, the power of a PRB on a common RB is equal to the maximum power minus the power occupied by the PSFCH, and then evenly distributed across the common RB according to the same power spectral density. That is, the power of a PRB on a common RB is equal to...

[0136]

[0137] Alternatively, the power of a PRB of a common RB is equal to the maximum or minimum of the two mentioned above.

[0138] In one instance, the transmit power of a PRB on a common RB is equal to the following value:

[0139]

[0140] Example 7a

[0141] If N1 is greater than Nmax, and:

[0142] (1) The transmit power of the Nmax PSFCHs selected according to the above priority order, plus the transmit power of all commonRBs to be transmitted, exceeds P CMAX That is, the conditions in Example 6 are not met.

[0143] (2) The transmit power of Nmax PSFCHs does not exceed P CMAX .

[0144] The UE sends Nmax PSFCHs, i.e., N² = Nmax, where the transmit power of one of the PSFCHs k is equal to P. PSFCH,one And allocate the remaining power to the common RB.

[0145] In one instance, the remaining power, i.e., the maximum power minus the power used by N2 PSFCHs, is allocated to the common PRB to be transmitted. This includes first determining the power P of the common PRB according to Examples 1 to 3. comm_oneThen, without exceeding the maximum power, determine the maximum number L of common PRBs that can be transmitted. For example, divide the linear value of the remaining power by the linear power of the common PRBs and round down to obtain L. The UE can select no more than L common PRBs for transmission, and the transmission power of each common PRB is P. comm_one .

[0146] In one instance, the remaining power, i.e., the maximum power minus the power used by N2 PSFCHs, is allocated to the common RBs to be transmitted. This involves first determining the M(N2) common RBs corresponding to the N2 PSFCHs, and then determining the number of common PRBs included in the M(N2) common RBs. Finally, the remaining power is evenly distributed to On a common PRB.

[0147] Example 7b

[0148] If (1) the transmit power of the N2 PSFCHs selected according to the above priority order plus the transmit power of all the commonRBs to be transmitted exceeds P CMAX (2) The transmit power of N2 PSFCHs does not exceed P CMAX .

[0149] The UE transmits N2 PSFCHs, where the transmit power of one of the PSFCHs, k, is equal to P. PSFCH,one And allocate the remaining power to the common RB.

[0150] In one instance, the remaining power, i.e., the maximum power minus the power used by N2 PSFCHs, is allocated to the common PRB to be transmitted. This includes first determining the power P of the common PRB according to Examples 1 to 3. comm_one Then, without exceeding the maximum power, determine the maximum number L of common PRBs that can be transmitted. For example, divide the linear value of the remaining power by the linear power of the common PRBs and round down to obtain L. The UE can select no more than L common PRBs for transmission, and the transmission power of each common PRB is P. comm_one .

[0151] In one instance, when selecting common PRBs to be transmitted, priority can be given to those that meet the OCB requirements. For example, an RB set can be divided into several unit bandwidths, such as an RB set of 20MHz and a unit bandwidth of 2MHz / 5MHz. If a PSFCH is transmitted within a unit bandwidth, then the common PRBs within that unit bandwidth do not need to be transmitted. If no PSFCH is transmitted within a unit bandwidth, then common PRBs can be used to fill the transmission. In other words, in one instance, common PRBs and PSFCH PRBs are distributed as evenly as possible within an RB set to meet the OCB requirements.

[0152] In one instance, the remaining power, i.e., the maximum power minus the power used by N2 PSFCHs, is allocated to the common RBs to be transmitted. This involves first determining the M(N2) common RBs corresponding to the N2 PSFCHs, and then determining the number of common PRBs included in the M(N2) common RBs. Finally, the remaining power is evenly distributed to On a common PRB.

[0153] Scene 2

[0154] In this scenario, it is assumed that downlink (DL) based PSFCH power control is not enabled, meaning that the downlink power control parameter dl-P0-PSFCH is not configured or provided.

[0155] Example 8

[0156] The UE determines the transmission process of N2 PSFCHs as follows: First, if there is a PSFCH carrying HARQ-ACK, it should be sent in priority order (priority values ​​from smallest to largest). Then, if there is a PSFCH carrying conflict information, it should be sent in priority order (priority values ​​from smallest to largest), ensuring that N2 ≥ 1. In another embodiment, N2 is less than or equal to Nmax, for example, N2 = min(Nmax, N1).

[0157] In one instance, the transmit power of a PRB in a common RB is the same as the transmit power of a PSFCH PRB, meaning the common RB and the PSFCH RB have the same PSD or EPRE. In this case, for a PSFCH k in N2, its transmit power is equal to...

[0158]

[0159] Where M(N2) represents the M(N2) RB sets or channels occupied by or containing the N2 PSFCHs, that is, the M(N2) common RBs corresponding to the N2 PSFCHs. This represents the number of PRBs included in common RB i. That is, P... CMAX The PRBs are evenly distributed across all emitted PRBs, including the common PRB in the common RB and the PRB in the PSFCH.

[0160] At this point, the power of the common PRB is equal to the power of the PSFCH PRB. For a common RB i, its transmit power is:

[0161]

[0162] Among them, P PSFCH As calculated above, P PSFCH,k .

[0163] Example 9

[0164] The UE determines the transmission process of N2 PSFCHs as follows: First, if there is a PSFCH carrying HARQ-ACK, it should be sent in priority order (priority values ​​from smallest to largest). Then, if there is a PSFCH carrying conflict information, it should be sent in priority order (priority values ​​from smallest to largest), ensuring that N2 ≥ 1. In another embodiment, N2 is less than or equal to Nmax, for example, N2 = min(Nmax, N1).

[0165] In one instance, the transmit power of a PRB in a common RB is different from that of a PSFCH PRB. For example, the power of a PRB in a common RB might be X times the power of a PSFCH PRB, where X is a rational number. Configuring or defining X as a value less than 1 can reduce the power of the common RB. In short, common RBs and PSFCH PRBs can have different PSDs or EPREs. In this case, for a PSFCH k in N2, its transmit power is equal to...

[0166]

[0167] Alternatively, the power of a PRB of the equivalent common RB is a PSFCH PRB plus an offset Y.

[0168] Where M(N2) represents the M(N2) RB sets or channels occupied by or containing the N2 PSFCHs, that is, the M(N2) common RBs corresponding to the N2 PSFCHs. Let P be the number of PRBs included in common RB i. Then the power of a common PRB is P. comm_one =P PSFCH,k +10log 10 X; or P comm_one =P PSFCH,k +Y.

[0169] At this point, for a common RB i, its transmit power is

[0170] Among them, P PSFCH As calculated above, P PSFCH,k .

[0171] Example 10

[0172] In one instance, the transmit power of a common PRB in a common RB is the same as the transmit power of a PSFCH PRB, meaning the common RB and the PSFCH RB have the same PSD or EPRE. The minimum transmit power of a PRB is set to Pmini.

[0173] 1) If N1 is less than or equal to Nmax, and the transmit power of N1 PSFCHs plus the transmit power of all common RBs to be transmitted does not exceed P. CMAX That is, the conditions are met:

[0174]

[0175] Where M(N1) is the number of RB sets or channels containing N1 PSFCHs. The meaning is the same as in the examples above.

[0176] If the above conditions are met, then N2 = N1, and the transmit power P of one of the PSFCH k is... PSFCH,k It's equivalent to Pmini, or It is either equal to the maximum of the two, or equal to the minimum of the two.

[0177] At this point, for a common RB i, its transmit power is Among them, P PSFCH As calculated above, P PSFCH,k .

[0178] 2) If N1 is less than or equal to Nmax, and the transmit power of N1 PSFCHs plus the transmit power of all common RBs to be transmitted exceeds P... CMAX That is, the following conditions are not met:

[0179]

[0180] The process by which the UE determines the transmission of N2 PSFCHs is as follows: First, if there is a PSFCH carrying HARQ-ACK, it should be sent in priority order (from lowest to highest priority value). Then, if there is a PSFCH carrying conflict information, it should be sent in priority order (from lowest to highest priority value), ensuring... Where L is the largest value that satisfies the following condition, or L is 0 if no L value satisfies the condition:

[0181]

[0182] Where M(L) represents the subset of L when the value is L. or The number of RBsets occupied by each PSFCH, i.e., the number of common RBs to be sent.

[0183] The transmit power P of a PSFCH k PSFCH,k It's equivalent to Pmini, or It can be equal to the maximum of the two, or equal to the minimum of the two. Where M(N2) is the number of RB sets occupied by the selected N2 PSFCHs, that is, the number of common RBs to be sent.

[0184] At this point, for a common RB i, its transmit power is Among them, P PSFCH As calculated above, P PSFCH,k .

[0185] 3) If N1 is greater than Nmax, and the transmit power of the Nmax PSFCHs selected according to the above priority order plus the transmit power of all common RBs to be transmitted does not exceed P... CMAX That is, the following conditions must be met:

[0186]

[0187] Where M(Nmax) is the number of RB sets or channels containing Nmax PSFCHs. The meaning is the same as in the examples above.

[0188] If the above conditions are met, then N2 = Nmax, where the transmit power P of one of the PSFCH k is... PSFCH,k It's equivalent to Pmini, or It is either equal to the maximum of the two, or equal to the minimum of the two.

[0189] At this point, for a common RB i, its transmit power is Among them, P PSFCH As calculated above, P PSFCH,k .

[0190] 4) If N1 is greater than Nmax, and the transmit power of the Nmax PSFCHs selected according to the above priority order plus the transmit power of all common RBs to be transmitted exceeds P... CMAX That is, the following conditions are not met:

[0191]

[0192] The process by which the UE determines the transmission of N2 PSFCHs is as follows: First, if there is a PSFCH carrying HARQ-ACK, it should be sent in priority order (from lowest to highest priority value). Then, if there is a PSFCH carrying conflict information, it should be sent in priority order (from lowest to highest priority value), ensuring... Where L is the largest value that satisfies the following condition, or L is 0 if no L value satisfies the condition:

[0193]

[0194] Where M(L) represents the subset of L when the value is L. or The number of RBsets occupied by each PSFCH, i.e., the number of common RBs to be sent.

[0195] The transmit power P of a PSFCH k PSFCH,k It's equivalent to Pmini, or It can be equal to the maximum of the two, or equal to the minimum of the two. Where M(N2) is the number of RB sets occupied by the selected N2 PSFCHs, that is, the number of common RBs to be sent.

[0196] At this point, for a common RB i, its transmit power is Among them, P PSFCH As calculated above, PPSFCH,k .

[0197] Example 11

[0198] In one instance, the transmit power of a PRB in a common RB may differ from that of a PSFCH PRB. For example, the power of a PRB in a common RB might be X times the power of a PSFCH PRB, where X is a rational number. Configuring or defining X as a value less than 1 can reduce the power of the common RB. In short, common RBs and PSFCH PRBs can have different PSDs or EPREs. Setting the minimum transmit power of a PSFCH PRB to Pmini means that the minimum transmit power of a PRB in a common RB is X times Pmini, or equivalently, its dB value offset by Y.

[0199] 1) If N1 is less than or equal to Nmax, and the transmit power of N1 PSFCHs plus the transmit power of all common RBs to be transmitted does not exceed P. CMAX That is, the conditions are met:

[0200]

[0201] Where M(N1) is the number of RB sets or channels containing N1 PSFCHs. The meaning is the same as in the examples above.

[0202] If the above conditions are met, then N2 = N1, and the transmit power P of one of the PSFCH k is... PSFCH,k It's equivalent to Pmini, or It is either equal to the maximum of the two, or equal to the minimum of the two.

[0203] At this point, for a common RB i, its transmit power is Among them, P PSFCH As calculated above, P PSFCH,k .

[0204] 2) If N1 is less than or equal to Nmax, and the transmit power of N1 PSFCHs plus the transmit power of all common RBs to be transmitted exceeds P... CMAX That is, the following conditions are not met:

[0205]

[0206] The process by which the UE determines the transmission of N2 PSFCHs is as follows: First, if there is a PSFCH carrying HARQ-ACK, it should be sent in priority order (from lowest to highest priority value). Then, if there is a PSFCH carrying conflict information, it should be sent in priority order (from lowest to highest priority value), ensuring... Where L is the largest value that satisfies the following condition, or L is 0 if no L value satisfies the condition:

[0207]

[0208] Where M(L) represents the subset of L when the value is L. or The number of RBsets occupied by each PSFCH, i.e., the number of common RBs to be sent.

[0209] The transmit power P of a PSFCH k PSFCH,k It's equivalent to Pmini, or It can be equal to the maximum of the two, or equal to the minimum of the two. Where M(N2) is the number of RB sets occupied by the selected N2 PSFCHs, that is, the number of common RBs to be sent.

[0210] At this point, for a common RB i, its transmit power is Among them, P PSFCH As calculated above, P PSFCH,k .

[0211] 3) If N1 is greater than Nmax, and the transmit power of the Nmax PSFCHs selected according to the above priority order plus the transmit power of all common RBs to be transmitted does not exceed P... CMAX That is, the following conditions must be met:

[0212]

[0213] Where M(Nmax) is the number of RB sets or channels containing Nmax PSFCHs. The meaning is the same as in the examples above.

[0214] If the above conditions are met, then N2 = Nmax, where the transmit power P of one of the PSFCH k is... PSFCHk It's equivalent to Pmini, or It is either equal to the maximum of the two, or equal to the minimum of the two.

[0215] At this point, for a common RB i, its transmit power is Among them, P PSFCH As calculated above, P PSFCH,k .

[0216] 4) If N1 is greater than Nmax, and the transmit power of the Nmax PSFCHs selected according to the above priority order plus the transmit power of all common RBs to be transmitted exceeds P... CMAX That is, the following conditions are not met:

[0217]

[0218] The process by which the UE determines the transmission of N2 PSFCHs is as follows: First, if there is a PSFCH carrying HARQ-ACK, it should be sent in priority order (from lowest to highest priority value). Then, if there is a PSFCH carrying conflict information, it should be sent in priority order (from lowest to highest priority value), ensuring... Where L is the largest value that satisfies the following condition, or L is 0 if no L value satisfies the condition:

[0219]

[0220] Where M(L) represents the subset of L when the value is L. or The number of RBsets occupied by each PSFCH, i.e., the number of common RBs to be sent.

[0221] The transmit power P of a PSFCH k PSFCH,k It's equivalent to Pmini, or It can be equal to the maximum of the two, or equal to the minimum of the two. Where M(N2) is the number of RB sets occupied by the selected N2 PSFCHs, that is, the number of common RBs to be sent.

[0222] At this point, for a common RB i, its transmit power is Among them, P PSFCH As calculated above, P PSFCH,k .

[0223] Example 12

[0224] In one example, the transmit power of a common PRB in a common RB is X times the transmit power of a PSFCH PRB, where X equals 1, indicating that the two are identical, meaning the common RB and the PSFCH RB have the same PSD or EPRE. Let the minimum transmit power of a PSFCH PRB be Pmini, then P... comm_one =P PSFCH +10log 10 X. Unlike Example 10, in this example, when the transmit power of the determined N2 PSFCHs plus the transmit power of all the common RBs to be transmitted exceeds P... CMAX In this instance, we try to ensure the number of PSFCHs sent and can reduce the number of common PRBs sent.

[0225] In one instance, it is determined that the transmit power of N² PSFCHs does not exceed P. CMAX In the case of one of the PSFCHk, the transmit power P PSFCH,k This is equivalent to Pmini, and then the remaining power after removing the PSFCH power is used to transmit up to L common PRBs. The maximum number of common PRBs that can be transmitted, L, is the remaining power divided by P. comm_one Round down to the nearest whole number.

[0226] The determination of the N2 value can be described as in the previous examples, specifically including:

[0227] 1) If N1 is less than or equal to Nmax, and the transmit power of N1 PSFCHs does not exceed P CMAX Then N2 = N1;

[0228] 2) If N1 is less than or equal to Nmax, and the transmit power of N1 PSFCHs exceeds P CMAX The UE determines N2 PSFCH transmissions according to the above priority order, without exceeding the maximum transmit power;

[0229] 3) If N1 is greater than Nmax, and the transmit power of the Nmax PSFCHs selected according to the above priority order does not exceed P... CMAX Then N2 = Nmax;

[0230] 4) If N1 is greater than Nmax, and the transmit power of the Nmax PSFCHs selected according to the above priority order exceeds P... CMAX The UE determines N2 PSFCH transmissions according to the above priority order without exceeding the maximum transmit power.

[0231] In one instance, when selecting common PRBs to be transmitted, priority can be given to those that meet the OCB requirements. For example, an RB set can be divided into several unit bandwidths, such as an RB set of 20MHz and a unit bandwidth of 2MHz / 5MHz. If a PSFCH is transmitted within a unit bandwidth, then the common PRBs within that unit bandwidth do not need to be transmitted. If no PSFCH is transmitted within a unit bandwidth, then common PRBs can be used to fill the transmission. In other words, in one instance, common PRBs and PSFCH PRBs are distributed as evenly as possible within an RB set to meet the OCB requirements.

[0232] Example 13

[0233] In one instance, the transmit power of only one PSFCH PRB is guaranteed to be sufficient. The minimum transmit power of a PSFCH PRB is set to Pmini. For common PRBs, their transmit power can be reduced. Unlike instance 10, in this instance, when the power is determined to be limited, this instance tries to ensure the number and power of PSFCHs and can reduce the transmit power of common PRBs.

[0234] In one instance, it is determined that the transmit power of N² PSFCHs does not exceed P. CMAX In the case of one of the PSFCHk, the transmit power P PSFCH,k This is equivalent to Pmini. Then, the remaining power after removing the PSFCH power is used to transmit M(N2) common RBs, where M(N2) is the M(N2) common RBs corresponding to N2 PSFCHs. Specifically, the remaining power is transmitted to the M(N2) common RBs with the same power spectral density.

[0235] The determination of the N2 value can be described as in the previous examples, specifically including:

[0236] 1) If N1 is less than or equal to Nmax, and the transmit power of N1 PSFCHs does not exceed P CMAX Then N2 = N1;

[0237] 2) If N1 is less than or equal to Nmax, and the transmit power of N1 PSFCHs exceeds P CMAX The UE determines N2 PSFCH transmissions according to the above priority order, without exceeding the maximum transmit power;

[0238] 3) If N1 is greater than Nmax, and the transmit power of the Nmax PSFCHs selected according to the above priority order does not exceed P... CMAX Then N2 = Nmax;

[0239] 4) If N1 is greater than Nmax, and the transmit power of the Nmax PSFCHs selected according to the above priority order exceeds P... CMAX The UE determines N2 PSFCH transmissions according to the above priority order without exceeding the maximum transmit power.

[0240] In one instance, when selecting common PRBs to be transmitted, priority can be given to those that meet the OCB requirements. For example, an RB set can be divided into several unit bandwidths, such as an RB set of 20MHz and a unit bandwidth of 2MHz / 5MHz. If a PSFCH is transmitted within a unit bandwidth, then the common PRBs within that unit bandwidth do not need to be transmitted. If no PSFCH is transmitted within a unit bandwidth, then common PRBs can be used to fill the transmission. In other words, in one instance, common PRBs and PSFCH PRBs are distributed as evenly as possible within an RB set to meet the OCB requirements.

[0241] It should be noted that this invention solves the power control problem of Sidelink devices transmitting PSFCH in unlicensed frequency bands to meet OCB requirements: The following methods are available for different scenarios (with or without DL power control):

[0242] (1) Determine the N2 feedbacks that can be sent from the N1 feedbacks that need to be sent, and determine their corresponding common RBs;

[0243] (2) Determining N2 and common RB in scenarios with multiple RB sets;

[0244] (3) Determine the power of the PSFCH;

[0245] (4) Determine the power of the common RB.

[0246] Through the above description of the embodiments, those skilled in the art can clearly understand that the methods according to the above embodiments can be implemented by means of software plus necessary general-purpose hardware platforms. Of course, they can also be implemented by hardware, but in many cases the former is a better implementation method. Based on this understanding, the technical solution of the present invention, in essence, or the part that contributes to the prior art, can be embodied in the form of a software product. This computer software product is stored in a storage medium (such as ROM / RAM, magnetic disk, optical disk) and includes several instructions to cause a terminal device (which may be a mobile phone, computer, server, or network device, etc.) to execute the methods described in the various embodiments of the present invention.

[0247] This embodiment also provides an information determining device for implementing the above embodiments and preferred embodiments; details already described will not be repeated. As used below, the term "module" can refer to a combination of software and / or hardware that performs a predetermined function. Although the device described in the following embodiments is preferably implemented in software, hardware implementation, or a combination of software and hardware, is also possible and contemplated.

[0248] Figure 4 This is a structural block diagram of an information determination device according to an embodiment of the present invention, such as... Figure 4 As shown, the device includes:

[0249] The determining module 42 is configured to determine the number N2 of Physical Sidelink Feedback Channels (PSFCHs) simultaneously transmitted by the terminal device UE in a PSFCH occasion and the transmit power of the PSFCHs, as well as the common resource blocks and transmit power of the common resource blocks corresponding to the N2 PSFCHs, by: determining that N2 equals N1, or determining that N2 equals Nmax, or determining N2 PSFCHs from the N1 PSFCHs according to the priority order of the PSFCHs; determining that the transmit power of the PSFCH is the required power of the PSFCH, or determining that the transmit power of the PSFCH is X times the maximum power of the UE, or determining that the transmit power of the PSFCH is the maximum or minimum value among the required power and X times the maximum power of the UE, where X is a rational number not greater than 1; and transmitting the determined N2 PSFCHs and the N2 PSFCHs. The common resource block corresponding to the FCH, wherein the transmit power of the common resource block plus the transmit power of N2 PSFCHs is less than or equal to the maximum power of the UE; the transmit power of the common resource block is determined to be the required power of the common resource block, or the transmit power of the common resource block is determined to be Y times the maximum power of the UE, or the transmit power of the common resource block is determined to be the maximum or minimum value of the required power of the common resource block and Y times the maximum power of the UE, where Y is a rational number not greater than 1; or the transmit power offset Y of the common resource block and the PSFCH is determined, where the transmit power offset Y is a network configuration or pre-configured value, 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.

[0250] The above-mentioned device solves the power control problem in related technologies when the PSFCH transmitted by the side link device in the unlicensed frequency band cannot meet the OCB requirements, thus enabling the power control of the side link device when the PSFCH transmitted in the unlicensed frequency band meets the OCB requirements.

[0251] In an exemplary embodiment, the determining module 42 is further configured to determine the number N2 of physical sidelink feedback channels (PSFCHs) to be transmitted by at least one of the following: if N1 is less than or equal to Nmax, and the transmission of all N1 PSFCHs and the common resource blocks corresponding to the all N1 PSFCHs does not exceed the maximum power of the UE, then N2 equals N1; if N1 is greater than Nmax, and the transmission of 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 the N1 PSFCHs according to the priority order of the PSFCHs, and N2 equals Nmax; and N2 PSFCHs are determined from the N1 PSFCHs according to the priority order of the PSFCHs.

[0252] In an exemplary embodiment, the determining module 42 is further configured to determine N2 PSFCHs from N1 PSFCHs according to the priority order of the PSFCHs in the following manner: if there is a PSFCH carrying HARQ-ACK among the N1 PSFCHs, the PSFCH carrying HARQ-ACK is sent according to the priority order; and if there is a PSFCH carrying conflict information, the PSFCH carrying conflict information is sent according to the priority order; wherein, N2 is greater than or equal to 1; or N2 is greater than or equal to Wherein, the M i The number of PSFCHs carrying HARQ-ACK with priority i or the number of PSFCHs carrying collision information with priority i-8; where, if there exists K satisfying the transmission... PSFCH and the aforementioned If the common resource block corresponding to each PSFCH does not exceed the maximum power of the UE, then K takes the maximum value among the values ​​that satisfy the condition. If no K satisfies the transmission condition... PSFCH and the aforementioned If the common resource block corresponding to each PSFCH does not exceed the maximum power of the UE, then K equals 0.

[0253] In an exemplary embodiment, the PSFCH power requirement includes: the PSFCH power determined by the configured PSFCH power control parameters; the common resource block power requirement includes: the common resource block power determined by the configured PSFCH power control parameters or the common resource block power control parameters.

[0254] In an exemplary embodiment, X is equal to the ratio of the bandwidth occupied by sending one PSFCH to the bandwidth occupied by sending N2 PSFCHs and the common resource blocks corresponding to the N2 PSFCHs; or X is equal to the ratio of the bandwidth occupied by sending one PSFCH to a first value, wherein the first value is the sum of the bandwidth occupied by N2 PSFCHs and m times the bandwidth occupied by 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.

[0255] In an exemplary embodiment, Y times the UE maximum power is equal to the ratio of the bandwidth occupied by transmitting the common resource block to the bandwidth occupied by transmitting N2 PSFCHs and the common resource block corresponding to the N2 PSFCHs; or, Y is equal to the ratio of m times the bandwidth occupied by transmitting the common resource block to a second value, wherein the second value is the sum of the bandwidth occupied by N2 PSFCHs and m times the bandwidth occupied by the common resource block 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.

[0256] In an exemplary embodiment, one of the N2 PSFCHs and the common resource block corresponding to that PSFCH are located on the same RB set.

[0257] In an exemplary embodiment, the number of common PRBs included in a common resource block i of RB set i is: Among them, the number of common PRBs included in the common resource blocks corresponding to different RB sets and their relative frequency domain positions on the RB set are the same or different.

[0258] In an 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 it has successfully accessed using the LBT procedure.

[0259] It should be noted that the above modules can be implemented by software or hardware. For the latter, they can be implemented in the following ways, but are not limited to: all the above modules are located in the same processor; or, the above modules are located in different processors in any combination.

[0260] Embodiments of the present invention also provide a computer-readable storage medium storing a computer program, wherein the computer program is configured to perform the steps in any of the above method embodiments when executed.

[0261] In one exemplary embodiment, the aforementioned computer-readable storage medium may include, but is not limited to, various media capable of storing computer programs, such as a USB flash drive, read-only memory (ROM), random access memory (RAM), portable hard disk, magnetic disk, or optical disk.

[0262] Embodiments of the present invention also provide an electronic device including a memory and a processor, the memory storing a computer program and the processor being configured to run the computer program to perform the steps in any of the above method embodiments.

[0263] In one exemplary embodiment, the electronic device may further include a transmission device and an input / output device, wherein the transmission device is connected to the processor and the input / output device is connected to the processor.

[0264] Specific examples in this embodiment can be found in the examples described in the above embodiments and exemplary implementations, and will not be repeated here.

[0265] It is obvious to those skilled in the art that the modules or steps of the present invention described above can be implemented using general-purpose computing devices. They can be centralized on a single computing device or distributed across a network of multiple computing devices. They can be implemented using computer-executable program code, and thus can be stored in a storage device for execution by a computing device. In some cases, the steps shown or described can be performed in a different order than those described herein, or they can be fabricated as separate integrated circuit modules, or multiple modules or steps can be fabricated as a single integrated circuit module. Thus, the present invention is not limited to any particular combination of hardware and software.

[0266] The above description is merely a preferred embodiment of the present invention and is not intended to limit the invention. Various modifications and variations can be made to the present invention by those skilled in the art. Any modifications, equivalent substitutions, or improvements made within the principles of the present invention should be included within the scope of protection of the present invention.

Claims

1. An information determination method characterized by comprising: include: The number N2 of Physical Sidelink Feedback Channels (PSFCHs) simultaneously transmitted by the UE in a single PSFCH occasion, the transmit power of the PSFCHs, and the transmit power of the common resource blocks corresponding to the N2 PSFCHs are determined as follows: Determine that N2 equals N1, or determine that N2 equals Nmax, or determine N2 PSFCHs from N1 PSFCHs according to the priority order of PSFCHs; The transmit power of the PSFCH is determined to be the required power of the PSFCH, or the transmit power of the PSFCH is determined to be X times the maximum power of the UE, or the transmit power of the PSFCH is determined to be the maximum or minimum value of the required power and X times the maximum power of the UE, where X is a rational number not greater than 1; Send a determined set of N2 PSFCHs and the common resource blocks corresponding to the N2 PSFCHs, wherein the transmit power of the common resource blocks plus the transmit power of the N2 PSFCHs is less than or equal to the maximum power of the UE; The transmit power of the common resource block is determined to be the transmit power offset Y of the PSFCH, where Y is a network configuration or pre-configured value, and the common resource block corresponds to the same interleaved resource block number; Wherein, N1 is the number of PSFCHs that need to be sent in a single PSFCH occasion, and Nmax is the maximum number of PSFCHs that can be sent in a single PSFCH occasion.

2. The information determination method according to claim 1, characterized in that, The number N2 of physical sidelink feedback channels (PSFCHs) to be transmitted includes at least one of the following: If N1 is less than or equal to Nmax, and the number of PSFCHs sent and the common resource blocks corresponding to the N1 PSFCHs do not exceed the maximum power of the UE, then N2 equals N1; If N1 is greater than Nmax, and the number of Nmax PSFCHs sent and the common resource blocks corresponding to the Nmax PSFCHs do not exceed the maximum power of the UE, then Nmax PSFCHs are determined from the N1 PSFCHs according to the priority order of the PSFCHs, and N2 is equal to Nmax. N2 PSFCHs are determined from N1 PSFCHs according to their priority order.

3. The information determination method according to claim 1, characterized in that, The N2 PSFCHs are determined from the N1 PSFCHs according to their priority order, including: If any of the N1 PSFCHs carries a HARQ-ACK, the PSFCH carrying the HARQ-ACK is sent according to the priority order; and if any PSFCH carries conflict information, the PSFCH carrying the conflict information is then sent according to the priority order. N2 is greater than or equal to 1; or N2 is greater than or equal to ; wherein, the The number of PSFCHs carrying HARQ-ACK with priority i or the number of PSFCHs carrying collision information with priority i-8; where, if there exists K satisfying the transmission... PSFCH and the aforementioned If the common resource block corresponding to each PSFCH does not exceed the maximum power of the UE, then K takes the maximum value among the values ​​that satisfy the condition. If no K satisfies the transmission condition... PSFCH and the aforementioned If the common resource block corresponding to each PSFCH does not exceed the maximum power of the UE, then K equals 0.

4. The information determination method according to claim 1, characterized in that, The required power of the PSFCH includes: the PSFCH power determined by the configured PSFCH power control parameters; The power requirement of the common resource block includes the power of the common resource block determined by the configured PSFCH power control parameters or the common resource block power control parameters.

5. The information determination method according to claim 1, characterized in that, X is equal to the ratio of the bandwidth occupied by sending one PSFCH to the bandwidth occupied by sending N2 PSFCHs and the common resource blocks corresponding to those N2 PSFCHs; or, X is equal to the ratio of the bandwidth occupied by sending one PSFCH to a first value, where the first value is the sum of the bandwidth occupied by N2 PSFCHs and the bandwidth occupied by m times the common resource block 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.

6. The information determination method according to claim 1, characterized in that, The method further includes: One of the N2 PSFCHs and the common resource block corresponding to that PSFCH are located on the same RBset.

7. The information determination method according to claim 6, characterized in that, The method further includes: The number of common PRBs included in a common resource block i of RB set i is Among them, the number of common PRBs included in the common resource blocks corresponding to different RB sets and their relative frequency domain positions on the RB set are the same or different.

8. The information determination method according to claim 1, characterized in that, The method further includes: 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 it successfully accesses using the LBT procedure.

9. An information determining device, characterized in that, include: The determination module is used to determine the number N2 of Physical Sidelink Feedback Channels (PSFCHs) simultaneously transmitted by the terminal device (UE) in a PSFCH occasion, the transmit power of the PSFCHs, and the common resource blocks and transmit power corresponding to the N2 PSFCHs, through the following methods: Determine that N2 equals N1, or determine that N2 equals Nmax, or determine N2 PSFCHs from N1 PSFCHs according to the priority order of PSFCHs; The transmit power of the PSFCH is determined to be the required power of the PSFCH, or the transmit power of the PSFCH is determined to be X times the maximum power of the UE, or the transmit power of the PSFCH is determined to be the maximum or minimum value of the required power and X times the maximum power of the UE, where X is a rational number not greater than 1; Send a determined set of N2 PSFCHs and the common resource blocks corresponding to the N2 PSFCHs, wherein the transmit power of the common resource blocks plus the transmit power of the N2 PSFCHs is less than or equal to the maximum power of the UE; The transmit power of the common resource block is determined to be the transmit power offset Y of the PSFCH, where Y is a network configuration or pre-configured value, and the common resource block corresponds to the same interleaved resource block number; Wherein, N1 is the number of PSFCHs that need to be sent in a single PSFCH occasion, and Nmax is the maximum number of PSFCHs that can be sent in a single PSFCH occasion.

10. A computer-readable storage medium, characterized in that, The storage medium stores a computer program, wherein the computer program is configured to execute the method described in any one of claims 1 to 8 when it is run.

11. An electronic device comprising a memory and a processor, characterized in that, The memory stores a computer program, and the processor is configured to run the computer program to perform the method as described in any one of claims 1 to 8.

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