Methods, apparatus, and computer program products for wireless communication

Abstract

A method, a device, and a computer program product for wireless communication are provided. The method includes transmitting, by a first wireless communication terminal, a physical sidelink feedback channel (PSFCH) to a second wireless communication terminal via a common resource block (RB), wherein the common RB is shared by one or more PSFCHs.

Description

Technical Field

[0001] This document generally relates to wireless communication, particularly to fifth-generation (5G: 5 th generation) or sixth-generation (6G: 6 th generation) communication.

Background Art

[0002] In order to meet the requirements of the occupied channel bandwidth (OCB) over unlicensed spectrum, the channel structure of the physical sidelink feedback channel (PSFCH) needs to evolve. However, when each single PSFCH is extended from a resource block (RB) to an interleaving, especially considering that the mapping between the physical sidelink shared channel (PSSCH) and the PSFCH becomes one-to-multiple to ensure feedback delivery, resources will be consumed in the frequency domain. Furthermore, there is an in-band emission (IBE) problem caused by power leakage from resource blocks (RBs) within an interleaving to other RBs in adjacent interleavings.

Summary of the Invention

Means for Solving the Problems

[0003] This disclosure relates to a method, a device, and a computer program product for sidelink transmission including PSFCH.

[0004] One aspect of the present disclosure relates to a wireless communication method. In one embodiment, the wireless communication method includes transmitting a physical sidelink feedback channel (PSFCH) from a first wireless communication terminal to a second wireless communication terminal via a common resource block (RB), wherein the common RB is shared by one or more PSFCHs. Note that the term "RB" as used in the present disclosure may refer to interlaced resource blocks, uninterlaced resource blocks, physical resource blocks, and / or virtual resource blocks (usually simply referred to as RBs) unless otherwise specified.

[0005] Another aspect of the present disclosure relates to a wireless communication method. In one embodiment, the wireless communication method includes receiving a physical sidelink feedback channel (PSFCH) from a first wireless communication terminal via a common resource block (RB) by a second wireless communication terminal, wherein the common RB is shared by one or more PSFCHs.

[0006] Another aspect of the present disclosure relates to a wireless communication terminal. In one embodiment, the wireless communication terminal includes a communication unit and a processor. The processor is configured such that the wireless communication method transmits a physical sidelink feedback channel (PSFCH) to a second wireless communication terminal via a common resource block (RB), the common RB being shared by one or more PSFCHs.

[0007] Another aspect of the present disclosure relates to a wireless communication terminal. In one embodiment, the wireless communication terminal includes a communication unit and a processor. The processor is configured to receive a physical sidelink feedback channel (PSFCH) from a first wireless communication terminal via a common resource block (RB), the common RB being shared by one or more PSFCHs.

[0008] Various embodiments can preferably implement the following features: Preferably, the common RB is not associated with a physical sidelink shared channel (PSSCH) received by the first wireless communication terminal from the second wireless communication terminal.

[0009] Preferably, the common RB is continuous or discontinuous. Preferably, the common RB is pre-configured, configured, or predetermined for each resource pool, each RB set, or each subchannel.

[0010] Preferably, the common RB includes an intra-cell guard RB. Preferably, the common RB is determined according to a bitmap, or at least one of a pre-configured, configured, or predetermined number of common RBs or IRBs, a pre-configured, configured, or predetermined offset, or a pre-configured, configured, or predetermined offset relative to a reference point.

[0011] Preferably, the pre-configured, configured, or predetermined offset (relative to the reference point) is a frequency offset measured in RB or IRB units and may be 0.

[0012] Preferably, the reference point may be the highest or lowest RB (RB with the highest or lowest index) in the resource pool, subchannel, RB set, or BWP.

[0013] Preferably, the length of the bitmap corresponds to the number of RBs within an interlace, resource pool, RB set, subchannel, BWP, or set of RBs.

[0014] Preferably, a set of RBs is shown as RBs that are not used to carry PSFCH information via bit status in the bitmap.

[0015] Preferably, the length of the bitmap corresponds to the number of interlaced resource blocks (IRBs) in the resource pool, RB set, subchannel, BWP, or set of IRBs.

[0016] Preferably, a set of IRBs is shown as IRBs that are not used to carry PSFCH information via bit status in the bitmap.

[0017] Preferably, the bits in the bitmap have a first status indicating that the corresponding RB or IRB is not being used for Hybrid Automatic Repeat Request (HARQ) acknowledgment (ACK) feedback or inter-user equipment coordination (IUC) information.

[0018] Preferably, the bits in the bitmap have a second status indicating that the corresponding RB or IRB is being used for HARQ ACK feedback or inter-user equipment coordination (IUC) information.

[0019] Preferably, the bits of the bitmap have a third status indicating that the corresponding RB or IRB is one of the common RBs.

[0020] Preferably, a pre-configuration, configuration, or pre-determination common to a plurality of PSFCHs carrying HARQ-ACK feedback and IUC information indicates one or more RBs, IRBs, or resource elements (REs) that are not used for any transmission.

[0021] Preferably, the common RB includes a guard RB, IRB, or resource element, RE, and the guard RB, IRB, or RE includes at least one of the highest or lowest configured, pre-configured, or pre-determined RB, IRB, or RE within an RB group in the common RB.

[0022] Preferably, an RB group is a set of RBs including at least one of adjacent RBs or IRBs in the common RB, or the lowest or highest RB or IRB in the common RB or IRB.

[0023] Preferably, the bits of the bitmap have a fourth status indicating that the corresponding RB or IRB is not used for any transmission.

[0024] Preferably, a guard resource set including at least one of one or more RBs, one or more IRBs, or one or more REs that are not used for any transmission and have a configured, pre-configured, or pre-determined offset with respect to a common RB or IRB or a reference point.

[0025] Preferably, the reference point can be the highest or lowest RB (the RB with the highest or lowest index) in a resource pool, subchannel, RB set, or BWP.

[0026] Preferably, the common RB is determined based on the base RB, and the base RB is the number of RBs or IRBs from a resource pool, subchannel, RB set, or BWP, and the length of the bitmap for indicating the transmitted PSFCH that carries HARQ-ACK, the length of the bitmap for indicating the transmitted PSFCH that carries IUC information, or at least one of the sum of the length of the bitmap for indicating the transmitted PSFCH that carries HARQ-ACK and the length of the bitmap for indicating the transmitted PSFCH that carries IUC information.

[0027] Preferably, the number of base RBs or IRBs is determined as the remainder when the number of RBs or IRBs from a resource pool, subchannel, RB set, or BWP is divided by at least one of the length of the bitmap for indicating the transmitted PSFCH that carries HARQ-ACK, the length of the bitmap for indicating the transmitted PSFCH that carries IUC information, or the sum of the length of the bitmap for indicating the transmitted PSFCH that carries HARQ-ACK and the length of the bitmap for indicating the transmitted PSFCH that carries IUC information.

[0028] Preferably, the number of common RBs or IRBs is determined by equally dividing or distributing the number of base RBs or IRBs among resource pools, subchannels, RB sets, or sets of RBs or BWPs.

[0029] Preferably, the common RB or IRB is a subset of the base RB indicated via a common RB or IRB bitmap, or a preconfigured, configured, or predetermined number of common RBs or IRBs, a preconfigured, configured, or predetermined offset, or at least one of a preconfigured, configured, or predetermined offset relative to a reference point.

[0030] Preferably, the pre-configured, configured, or predetermined offset (relative to the reference point) may be a frequency offset measured in RB or IRB units, and may be zero.

[0031] Preferably, the reference point may be the highest or lowest RB (RB with the highest or lowest index) in the resource pool, subchannel, RB set, or BWP.

[0032] Preferably, the base RB or IRB includes a guard RB or IRB. Preferably, the guard RB is a subset of the base RB indicated via an RB or IRB bitmap, or at least one of a pre-configured, configured, or predetermined number of guard RBs or IRBs, a pre-configured, configured, or predetermined offset, or a pre-configured, configured, or predetermined offset relative to a reference point.

[0033] Preferably, the pre-configured, configured, or predetermined offset (relative to the reference point) is a frequency offset measured in RB or IRB units and may be 0.

[0034] Preferably, the reference point may be the highest or lowest RB or IRB (the RB or IRB with the highest or lowest index) in the resource pool, subchannel, RB set, or BWP.

[0035] Preferably, a guard interlace set including one or more configured, pre-configured, or predetermined interlaces not used for any transmission having a common RB or IRB, or a configured, pre-configured, or predetermined offset relative to a reference point.

[0036] Preferably, the reference point may be the highest or lowest RB (RB with the highest or lowest index) in the resource pool, subchannel, RB set, or BWP.

[0037] The exemplary embodiments disclosed herein are intended to provide features that will be readily apparent by referring to the following description in conjunction with the accompanying drawings. Various embodiments disclose exemplary systems, methods, apparatus, and computer program products. However, it should be understood that these embodiments are presented as examples and not as limitations, and it will be apparent to those skilled in the art who have read this disclosure that various modifications to the disclosed embodiments can be made while remaining within the scope of this disclosure.

[0038] Therefore, this disclosure is not limited to the exemplary embodiments and uses described and illustrated herein. Furthermore, the particular order and / or hierarchy of things in the methods disclosed herein is merely illustrative. Based on design preferences, the particular order or hierarchy of things in the disclosed methods or processes can be rearranged while remaining within the scope of this disclosure. Accordingly, those skilled in the art will understand that the methods and techniques disclosed herein present a variety of things or operations in a sample order, and that this disclosure is not limited to the specific order or hierarchy presented unless otherwise specified.

[0039] The above and other aspects and embodiments thereof will be described in more detail in the drawings, description and claims. [Brief explanation of the drawing]

[0040] [Figure 1] A diagram of a resource block according to one embodiment of this disclosure is shown. [Figure 2] A diagram of a resource block according to another embodiment of this disclosure is shown. [Figure 3] A diagram of a resource block according to another embodiment of this disclosure is shown. [Figure 4]A diagram of a resource block according to another embodiment of this disclosure is shown. [Figure 5] A diagram of a resource block according to another embodiment of this disclosure is shown. [Figure 6] A schematic diagram of a wireless communication terminal according to one embodiment of the present disclosure is shown. [Modes for carrying out the invention]

[0041] In some embodiments, the number of CRBs included in the interlace may exceed 10 for interlaced transmission.

[0042] In some embodiments, either a start subchannel association or a full subchannel association may be used for PSFCH and physical sidelink shared channel (PSSCH) association. If each interlace of the PSFCH is associated with the PSFCH, a full subchannel association may be more demanding.

[0043] In some embodiments, user equipment (UE) may determine the number of PSFCH resources available for multiplexing Hybrid Automatic Repeat Request Acknowledgements (HARQ-ACKs) or conflict information in PSFCH transmissions.

[0044] Embodiment 1: In one embodiment, a set of RBs or IRBs is configured or predetermined as a common RB or IRB. In one embodiment, each PSFCH may occupy some or all of the resources on these RBs or IRBs. In one embodiment, these RBs or IRBs are shared by one or more PSFCHs. These RBs or IRBs will hereafter be referred to as common RBs or IRBs. In one embodiment, one or more PSFCHs may carry HARQ-ACK feedback and IUC information. In one embodiment, the common RBs or IRBs may be continuous or discontinuous. In one embodiment, the common RBs or IRBs may be configured or predetermined per resource pool, per set of RBs, or per subchannel. In one embodiment, the common RBs or IRBs may include intra-cell guard RBs or IRBs. In one embodiment, as shown in Figure 5, a common RB or IRB can be (pre)configured or determined via a bitmap, or via at least one of the following: a (pre)configured and / or predetermined number of RBs, a (pre)configured and / or predetermined offset measured in the RB or IRB, or a (pre)configured and / or predetermined offset measured in the RB or IRB relative to a reference point. The reference point may be the highest or lowest RB and / or IRB in a resource pool, subchannel, RB set, or BWP (e.g., the RB and / or IRB with the highest or lowest index). In one embodiment, the length of the bitmap may be associated with (e.g., equal to) the number of RBs in interlace, a resource pool, an RB set, a subchannel, a bandwidth part (BWP), or a set of RBs (e.g., this set of RBs is indicated not to be used to carry PSFCH information via the bit status in the bitmap).In one embodiment, the length of the bitmap may be associated with (e.g., equal to) the number of interlaced resource blocks (IRBs) in the resource pool, an RB set, a subchannel, a BWP, or a set of IRBs (for example, this set of IRBs is indicated as not being used to carry PSFCH information via bit status in the bitmap).

[0045] Please note that, unless otherwise specified, the term “RB” as used in this disclosure may refer to interlaced resource blocks, non-interlaced resource blocks, physical resource blocks, and / or virtual resource blocks.

[0046] Embodiment 2: In one embodiment, a common RB or IRB can be represented via a bitmap L. In one embodiment, the length of the bitmap L may be associated with (e.g., equal to) the number of RBs or IRBs in the resource pool. In one embodiment, each bit of the bitmap L contains three statuses, represented, for example, as status 0, status 1, and status 2. The status 0 bit indicates a corresponding RB or IRB not used for HARQ ACK feedback or inter-UE coordination information. The status 1 bit indicates a corresponding RB or IRB of a PSFCH used for HARQ ACK feedback or inter-UE coordination information. The status 2 bit indicates that the corresponding RB or IRB is one of the common RBs shared by one or more PSFCHs and not associated with a PSSCH. In one embodiment, PSFCHs carrying HARQ-ACK feedback and inter-UE coordination information may each correspond to a dedicated bitmap L.

[0047] Embodiment 3: In one embodiment, a common RB or IRB can be represented via a bitmap L. In one embodiment, each bit in the bitmap L contains three statuses, represented, for example, as status 0, status 1, and status 2. A status 0 bit indicates a corresponding RB or IRB not used for HARQ ACK feedback or inter-UE coordination information. A status 1 bit indicates a corresponding RB or IRB of a PSFCH used for HARQ ACK feedback or inter-UE coordination information. A status 2 bit indicates that the corresponding RB or IRB is one of a common RB shared by multiple PSFCHs and not associated with a PSSCH. In one embodiment, PSFCHs carrying HARQ-ACK feedback and inter-UE coordination information may each correspond to a dedicated bitmap L. In one embodiment, a common preconfiguration, configuration, or predeterminant for multiple PSFCHs carrying HARQ-ACK feedback and IUC information indicates one or more RBs (e.g., guard RBs) not used for any transmission. The preconfiguration, configuration, or predeterminant can be represented via a bitmap having at least one status, for example, 0, indicating that one or more RBs are not used for transmission. In one embodiment, as shown in Figure 5, preconfiguration, configuration, or predetermination can be performed via at least one of the following: a preconfigured or configured number of common RBs or IRBs, a preconfigured or configured offset, or a preconfigured or configured offset relative to a reference point.

[0048] Embodiment 4: In one embodiment, a common RB or IRB can be represented via a bitmap L. In one embodiment, each bit of the bitmap L contains three statuses, for example, status 0, status 1, and status 2. The status 0 bit indicates a corresponding RB or IRB not used for HARQ ACK feedback or inter-UE coordination information. The status 1 bit indicates a corresponding RB or IRB of a PSFCH used for HARQ ACK feedback or inter-UE coordination information. The status 2 bit indicates that the corresponding RB or IRB is one of a common RB shared by multiple PSFCHs and not associated with a PSSCH. In one embodiment, PSFCHs carrying HARQ-ACK feedback and inter-UE coordination information may each correspond to a dedicated bitmap L. In one embodiment, a common RB or IRB may have a guard RB, IRB or resource element, RE, and the guard RB, IRB or RE may have at least one of the highest or lowest configured, pre-configured, or pre-determined RBs, IRBs or REs of an RB group within the common RB or IRB (e.g., including one or more of the common RBs or IRBs). In one embodiment, an RB group is a set of RBs that includes at least one of adjacent RBs or IRBs within the common RB or IRB, the lowest RB or IRB within the common RB or IRB (the RB or IRB with the lowest index), or the highest RB or IRB within the common RB or IRB (the RB or IRB with the highest index).

[0049] Embodiment 5: In one embodiment, a common RB or IRB can be represented via a bitmap L. In one embodiment, each bit in the bitmap L contains four statuses, represented, for example, as status 0, status 1, status 2, and status 3. A status 0 bit indicates a corresponding RB or IRB not used for HARQ ACK feedback or inter-UE coordination information. A status 1 bit indicates a corresponding RB or IRB of a PSFCH used for HARQ ACK feedback or inter-UE coordination information. A status 2 bit indicates that the corresponding RB or IRB is one of the common RBs shared by multiple PSFCHs and not associated with a PSSCH. A status 3 bit indicates that the corresponding RB or IRB is a guard RB or IRB and cannot transmit any signal / channel, for example, HARQ ACK feedback, inter-UE coordination information, or a sidelink synchronization signal block (S-SSB). In one embodiment, PSFCHs carrying HARQ-ACK feedback and inter-UE coordination information may each correspond to a dedicated bitmap L.

[0050] Embodiment 6: In one embodiment, the common RB is determined based on the base RB, which is determined according to numbers A and B. In one embodiment, number A is the number of RBs or IRBs from the resource pool, subchannel, RB set, or BWP, and number B is at least one of the following: the length of the bitmap for indicating transmitted PSFCHs carrying HARQ-ACKs, the length of the bitmap for indicating transmitted PSFCHs carrying IUC information, or the sum of the length of the bitmap for indicating transmitted PSFCHs carrying HARQ-ACKs and the length of the bitmap for indicating transmitted PSFCHs carrying IUC information. In one embodiment, the base RB is the remainder when number A is divided by number B. For example, if the number of RBs or IRBs from the resource pool, subchannel, RB set, or BWP is 25, and the sum of the length of the bitmap for indicating transmitted PSFCHs carrying HARQ-ACKs and the length of the bitmap for indicating transmitted PSFCHs carrying IUC information is 20, then the number of base RBs is 5. In one embodiment, base RBs may be distributed across the edges and / or center of a resource pool, RB set, subchannel, or BWP. In one embodiment, as shown in Figure 4, the number of common RBs is determined by evenly dividing or distributing the number of base RBs among the resource pool, RB set, subchannel, RB set, or BWP. As used herein, a set of RBs refers to pre-configured, configured, or predetermined RBs from a resource pool, subchannel, RB set, or BWP.

[0051] In one embodiment, the common RB or IRB is a subset of the base RB or IRB indicated via the common RB or IRB bitmap, or at least one of a pre-configured, configured, or predetermined number of common RBs or IRBs, a pre-configured, configured, or predetermined offset, or a pre-configured, configured, or predetermined offset relative to a reference point (see Figure 5). The pre-configured, configured, or predetermined offset (relative to a reference point) may be a frequency offset measured in units of RB or IRB, and may be 0 (see Figure 5). The reference point may be the highest or lowest PRB or IRB (PRB or IRB having the highest or lowest index) in the resource pool, subchannel, RB set, or BWP. In one embodiment, the length of the common RB or IRB bitmap is associated with the number of base RBs or IRBs (e.g., equal to or part of it).

[0052] In one embodiment, a guard RB or IRB is a subset of the base RB or IRB indicated via a guard RB or IRB bitmap, or at least one of a pre-configured, configured, or predetermined number of guard RBs or IRBs, a pre-configured, configured, or predetermined offset, or a pre-configured, configured, or predetermined offset relative to a reference point (see Figure 5). The pre-configured, configured, or predetermined offset (relative to a reference point) may be a frequency offset measured in units of RB or IRB, and may be 0 (see Figure 5). The reference point may be the highest or lowest PRB or IRB (PRB or IRB having the highest or lowest index) in the resource pool, subchannel, RB set, or BWP. In one embodiment, the length of the guard RB or IRB bitmap is associated with the number of base RBs or IRBs (e.g., equal to or part of it).

[0053] Embodiment 7: In one embodiment, as shown in Figure 3, a guard interlace set including at least one of configured, preconfigured, or predetermined guard interlaces not used for any transmission has a configured, preconfigured, or predetermined offset relative to a common RB or IRB.

[0054] Embodiment 8: Figure 1 shows a diagram of a resource block according to one embodiment of the present disclosure. As shown in Figure 1, a common RB is configured that can be shared by one or more PSFCHs. The common RB is not associated with any PSSCH (for example, it is not used to carry HARQ-ACK feedback and inter-UE coordination information). In addition, a guard RB is configured that is not used for any transmissions.

[0055] Figure 2 shows a diagram of a resource block according to one embodiment of the present disclosure. As shown in Figure 2, (pre)configured offsets may exist between multiple RBs associated with a single PSFCH.

[0056] Figure 3 shows a diagram of a resource block according to one embodiment of the present disclosure. As shown in Figure 3, a guard interlace set can be configured, which includes one or more guard interlaces. One guard interlace may include, for example, an interlace having a frequency offset (e.g., 0) to one or more guard RBs and / or a common RB.

[0057] Embodiment 9: In one embodiment, dedicated common RBs can be configured, preconfigured, or predetermined for PSFCHs that carry acknowledgment (ACK) or negative acknowledgement (NACK) feedback, respectively. Common RBs for ACK or NACK feedback can be configured or preconfigured via separate bit states in a bitmap, or can be configured, preconfigured, or predetermined separately via a number of preconfigured, configured, or predetermined common RBs or IRBs, preconfigured, configured, or predetermined offsets, or preconfigured, configured, or predetermined offsets relative to a reference point.

[0058] Depending on whether it transmits a PSFCH carrying ACK or NACK feedback, the UE may perform the transmission via a common RB corresponding to either ACK or NACK feedback.

[0059] In one embodiment, as shown in Figure 2 or Figure 3, the pattern of PSFCH resources carrying HARQ-ACK information or IUC information may be indicated by at least one of the following: a configured number of RBs, a (pre)configured or predetermined offset, and / or a (pre)configured or predetermined offset relative to a reference point.

[0060] In one embodiment, as shown in Figure 4, the base RB or IRB may be evenly divided or distributed within a subchannel containing a common RB or IRB.

[0061] In one embodiment, as shown in Figure 5, the RB or IRB carrying HARQ ACK information or IUC information within the PSFCH has a configured, pre-configured, or predetermined frequency offset. The common RB or IRB or guard RB or IRB has a configured, pre-configured, or predetermined frequency offset between them. The common RB or IRB or guard RB or IRB has a configured, pre-configured, or predetermined frequency offset relative to the reference point.

[0062] In one embodiment, a guard resource set including at least one of RBs, IRBs, or REs that is not used for any transmission has a configured, pre-configured, or predetermined offset for a common RB.

[0063] According to one embodiment of the present disclosure, a wireless communication method includes transmitting a physical sidelink feedback channel (PSFCH) from a first wireless communication terminal (e.g., UE) to a second wireless communication terminal (e.g., another UE) via a common resource block (RB), wherein the common RB is shared by one or more (other) PSFCHs.

[0064] According to one embodiment of the present disclosure, a wireless communication method includes receiving a physical sidelink feedback channel (PSFCH) from a first wireless communication terminal via a common resource block (RB) by a second wireless communication terminal, wherein the common RB is shared by one or more (other) PSFCHs.

[0065] Details regarding the common RB, PSFCH, and related configurations or operations can be found by referring to the paragraphs above and will not be repeated here.

[0066] Figure 6 relates to a diagram of a wireless communication terminal 30 according to one embodiment of the present disclosure. The wireless communication terminal 30 may be, but is not limited herein, a tag, a mobile phone, a laptop, a tablet computer, an e-reader, or a portable computer system. The wireless communication terminal 30 may include a processor 300, such as a microprocessor or an Application Specific Integrated Circuit (ASIC), a storage unit 310, and a communication unit 320. The storage unit 310 may be any data storage device that stores program code 312 accessed and executed by the processor 300. Embodiments of the storage code 312 include, but are not limited to, a subscriber identity module (SIM), read-only memory (ROM), flash memory, random-access memory (RAM), a hard disk, and an optical data storage device. The communication unit 320 may be a transceiver and is used to send and receive signals (e.g., messages or packets) according to the processing results of the processor 300. In one embodiment, the communication unit 320 sends and receives signals via at least one antenna 322.

[0067] In one embodiment, the storage unit 310 and the program code 312 may be omitted, and the processor 300 may include a storage unit having the stored program code.

[0068] The processor 300 may, for example, execute program code 312 to perform any of the steps in the illustrated embodiment at the wireless communication terminal 30.

[0069] The communication unit 320 may be a transceiver. Alternatively or additionally, the communication unit 320 may be a combination of a transmitting unit and a receiving unit configured to transmit and receive signals to and from a wireless communication node, respectively.

[0070] In some embodiments, the wireless communication terminal 30 may be used to perform one of the tag operations described above. In some embodiments, the processor 300 and the communication unit 320 cooperate to perform the operations described above. For example, the processor 300 performs an operation to send or receive signals, messages, and / or information via the communication unit 320.

[0071] While various embodiments of this disclosure have been described above, it should be understood that they are presented only as examples and not as limitations. Similarly, various figures may illustrate exemplary architectures or configurations provided to enable those skilled in the art to understand the exemplary features and functions of this disclosure. However, such those skilled in the art will understand that this disclosure is not limited to the illustrated exemplary architectures or configurations and can be implemented using various alternative architectures and configurations. Furthermore, as will be understood by those skilled in the art, one or more features of one embodiment can be combined with one or more features of another embodiment described herein. Therefore, the breadth and scope of this disclosure should not be limited by any of the exemplary embodiments described above.

[0072] Furthermore, it should be understood that any reference to elements in this specification using designations such as “first,” “second,” etc., does not generally limit the quantity or order of those elements. Rather, these names can be used in this specification as a convenient means of distinguishing two or more elements or examples of elements. Thus, references to first and second elements do not mean that only two elements can be used, or that the first element must in some way precede the second element.

[0073] Furthermore, those skilled in the art will understand that information and signals can be represented using any of the various different techniques and methods. For example, data, instructions, commands, information, signals, bits, and symbols that can be mentioned throughout the above description can be represented by voltage, electric current, electromagnetic waves, magnetic fields or particles, optical fields or particles, or any combination thereof.

[0074] Those skilled in the art will further understand that any of the various exemplary logic blocks, units, processors, means, circuits, methods, and functions described in relation to the embodiments disclosed herein can be implemented by electronic hardware (e.g., digital implementations, analog implementations, or a combination of both), firmware, various forms of programs or design code incorporating instructions (which may be referred to herein as “software” or “software units” for convenience), or any combination of these technologies.

[0075] To clearly demonstrate this compatibility with hardware, firmware, and software, various exemplary components, blocks, units, circuits, and processes are generally described above with respect to their functions. Whether such functions are implemented as hardware, firmware, software, or a combination of these technologies depends on the specific application and the design constraints imposed on the overall system. A person skilled in the art may implement the described functions in various ways for each specific application, but such implementation decisions should not be construed as departing from the scope of this disclosure. According to various embodiments, processors, devices, components, circuits, structures, machines, units, etc., can be configured to perform one or more of the functions described herein. The terms “configured for” or “configured to” as used herein with respect to a specified operation or function refer to processors, devices, components, circuits, structures, machines, units, etc., that are physically constructed, programmed and / or positioned to perform the specified operation or function.

[0076] Furthermore, those skilled in the art will understand that the various exemplary logic blocks, units, devices, components, and circuits described herein can be implemented in, or performed by, an integrated circuit (IC) which may include a general-purpose processor, a digital signal processor (DSP), an application-specific integrated circuit (ASIC), a field-programmable gate array (FPGA), or other programmable logic device, or any combination thereof. The logic blocks, units, and circuits may further include antennas and / or transceivers for communicating with various components within a network or device. While a general-purpose processor may be a microprocessor, in alternative examples, the processor may be any conventional processor, controller, or state machine. The processor may also be implemented as a combination of computing devices, e.g., a combination of a DSP and a microprocessor, multiple microprocessors, one or more microprocessors working with a DSP core, or any other suitable configuration for performing the functions described herein. When implemented in software, the functions may be stored as one or more instructions or codes on a computer-readable medium. Therefore, the steps of the methods or algorithms disclosed herein can be implemented as software stored on a computer-readable medium.

[0077] Computer-readable media include both computer storage media and communication media, which include any media that can enable the transfer of computer programs or code from one location to another. Storage media can be any available media that can be accessed by a computer. Such computer-readable media, but not limited to, include RAM, ROM, EEPROM, CD-ROM or other optical disk storage devices, magnetic disk storage devices or other magnetic storage devices, or any other media that can be used to store desired program code in the form of instructions or data structures and can be accessed by a computer.

[0078] As used herein, the term “unit” refers to software, firmware, hardware, and any combination thereof for performing the relevant functions described herein. Furthermore, for illustrative purposes, various units are described as individual units, but as will be apparent to those skilled in the art, two or more units can be combined to form a single unit that performs the relevant functions according to embodiments of this disclosure.

[0079] Furthermore, embodiments of this disclosure may utilize memory or other storage devices, as well as communication components. For clarity, it will be understood that the above description has illustrated embodiments of this disclosure with reference to different functional units and processors. However, it will be apparent that any suitable distribution of functionality between different functional units, processing logic elements, or domains can be used without prejudice to this disclosure. For example, a function shown to be performed by a separate processing logic element or controller may be performed by the same processing logic element or controller. Thus, references to specific functional units are not intended to indicate a strict logical or physical structure or organization, but merely to refer to suitable means for providing the described functionality.

[0080] Various modifications to the embodiments described herein will be readily apparent to those skilled in the art, and the general principles defined herein can be applied to other embodiments without departing from the scope of this disclosure. Therefore, this disclosure is not intended to be limited to the embodiments shown herein, but should be given the broadest scope consistent with the novel features and principles disclosed herein, as set forth in the following claims.

Claims

1. A wireless communication method, The first communication device transmits a physical sidelink feedback channel (PSFCH) to a second wireless communication terminal via a common resource block (RB), wherein the common RB is shared by one or more PSFCHs, and the transmission includes this. The aforementioned common RB is configured for each resource pool, The aforementioned common RB includes one or more in-cell guard RBs, A wireless communication method wherein the one or more in-cell guard RBs include at least one of the highest or lowest configured, pre-configured, or pre-determined RBs of an RB group in the common RB.

2. The wireless communication method according to claim 1, wherein the common RB is not associated with a physical sidelink shared channel (PSSCH) received by the first communication device from the second wireless communication terminal.

3. The aforementioned common RB is, Bitmap, or At least one of the following: A pre-configured, configured, or predetermined number of the aforementioned common RBs or IRBs, Pre-configured, configured, or predetermined offsets, Pre-configured, configured, or predetermined offset relative to the reference point, A wireless communication method according to claim 1, determined according to the following.

4. The length of the bitmap corresponds to the number of IRBs in a resource pool, RB set, subchannel, BWP, or set of interlaced resource blocks (IRBs). The wireless communication method according to claim 3, wherein the set of IRBs is indicated by the bit status in the bitmap as IRBs not used to carry the PSFCH information.

5. The bits of the bitmap have a first status indicating that the corresponding RB or IRB is not being used for Hybrid Automatic Repeat Request (HARQ) acknowledgment (ACK) feedback or inter-user equipment coordination (IUC) information, and / or The bits in the bitmap have a second status indicating that the corresponding RB or IRB is being used for HARQ ACK feedback or inter-user equipment coordination (IUC) information, and / or The wireless communication method according to claim 3, wherein the bits of the bitmap have a third status indicating that the corresponding RB or IRB is one of the common RBs.

6. The wireless communication method according to any one of claims 1 to 4, wherein the common RB is determined based on a base RB, the base RB is determined according to the number of RBs or IRBs from a resource pool, subchannel, RB set, or BWP, and at least one of the length of a bitmap for indicating the transmitted PSFCH carrying the HARQ-ACK, the length of a bitmap for indicating the transmitted PSFCH carrying the IUC information, or the sum of the length of the bitmap for indicating the transmitted PSFCH carrying the HARQ-ACK and the length of the bitmap for indicating the transmitted PSFCH carrying the IUC information.

7. The wireless communication method according to claim 6, wherein the number of base RBs is determined as the remainder obtained by dividing the number of RBs or IRBs from a resource pool, subchannel, RB set, or BWP by at least one of the lengths of a bitmap for indicating the transmitted PSFCH carrying HARQ-ACKs, the length of a bitmap for indicating the transmitted PSFCH carrying IUC information, or the sum of the length of the bitmap for indicating the transmitted PSFCH carrying HARQ-ACKs and the length of the bitmap for indicating the transmitted PSFCH carrying IUC information.

8. The wireless communication method according to claim 6, wherein the number of common RBs is determined by equally dividing the number of base RBs in a resource pool, RB set, subchannel, RB set, or BWP.

9. The common RB is a subset of the base RB shown via a common RB bitmap, or at least one of the following: A pre-configured, configured, or predetermined number of the aforementioned common RBs, Pre-configured, configured, or predetermined offsets, Pre-configured, configured, or predetermined offset relative to the reference point, A wireless communication method according to claim 6, comprising:

10. A wireless communication method, The second wireless communication terminal receives a physical sidelink feedback channel (PSFCH) from the first wireless communication terminal via a common resource block (RB), wherein the common RB is shared by one or more PSFCHs, and the receiving includes: The aforementioned common RB is configured for each resource pool, The aforementioned common RB includes one or more in-cell guard RBs, A wireless communication method wherein the one or more in-cell guard RBs include at least one of the highest or lowest configured, pre-configured, or pre-determined RBs of an RB group in the common RB.

11. The wireless communication method according to claim 10, wherein the common RB is not associated with a physical sidelink shared channel, PSSCH, received by the first wireless communication terminal from the second wireless communication terminal.

12. The aforementioned Common RB is a bitmap, or At least one of the following: A pre-configured, configured, or predetermined number of the aforementioned common RBs or IRBs, Pre-configured, configured, or predetermined offsets, Pre-configured, configured, or predetermined offset relative to the reference point, A wireless communication method according to claim 10, determined according to the following.

13. The length of the bitmap corresponds to the number of interlaced resource blocks (IRBs) within the resource pool, RB set, subchannel, BWP, or set of IRBs. The wireless communication method according to claim 12, wherein the set of IRBs is indicated as IRBs not used to carry the PSFCH information via the bit status in the bitmap.

14. The bits of the bitmap have a first status indicating that the corresponding RB or IRB is not being used for Hybrid Automatic Repeat Request (HARQ) acknowledgment (ACK) feedback or inter-user equipment coordination (IUC) information, and / or The bits in the bitmap have a second status indicating that the corresponding RB or IRB is being used for HARQ ACK feedback or inter-user equipment coordination (IUC) information, and / or The wireless communication method according to claim 12, wherein the bits of the bitmap have a third status indicating that the corresponding RB or IRB is one of the common RBs.

15. The wireless communication method according to any one of claims 10 to 14, wherein the common RB is determined based on a base RB, the base RB is determined according to the number of RBs or IRBs from a resource pool, subchannel, RB set, or BWP, and at least one of the following: the length of a bitmap for indicating the received PSFCH carrying HARQ-ACK, the length of a bitmap for indicating the received PSFCH carrying IUC information, or the sum of the length of the bitmap for indicating the received PSFCH carrying HARQ-ACK and the length of the bitmap for indicating the received PSFCH carrying IUC information.

16. The wireless communication method according to claim 15, wherein the number of base RBs is determined as the remainder obtained by dividing the number of RBs or IRBs from a resource pool, subchannel, RB set, or BWP by at least one of the lengths of a bitmap for indicating the received PSFCH carrying HARQ-ACKs, the length of a bitmap for indicating the received PSFCH carrying IUC information, or the sum of the length of the bitmap for indicating the received PSFCH carrying HARQ-ACKs and the length of the bitmap for indicating the received PSFCH carrying IUC information.

17. The wireless communication method according to claim 15, wherein the number of common RBs is determined by equally dividing the number of base RBs in a resource pool, RB set, subchannel, RB set, or BWP.

18. The wireless communication method according to claim 15, wherein the common RB is a subset of the base RB shown via a common RB bitmap, or has at least one of a pre-configured, configured, or predetermined number of the common RB, a pre-configured, configured, or predetermined offset, or a pre-configured, configured, or predetermined offset relative to a reference point.

19. A wireless communication device, Communication unit and A second wireless communication device comprises at least one processor configured to cause the wireless communication device to transmit a physical sidelink feedback channel (PSFCH) via a common resource block (RB), wherein the common RB is shared by one or more PSFCHs, and the at least one processor The aforementioned common RB is configured for each resource pool, The aforementioned common RB includes one or more in-cell guard RBs, A wireless communication device in which the one or more in-cell guard RBs include at least one of the highest or lowest configured, pre-configured, or pre-determined RBs of an RB group in the common RB.

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