Method, apparatus and computer program product for wireless communication

Abstract

A method, an apparatus, 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

[0001] This article focuses on wireless communications, especially fifth generation (5G) or sixth generation (6G) wireless communications.

[0002] In order to meet the OCB (occupied channel bandwidth) requirements on unlicensed spectrum, the channel structure of PSFCH (physical sidelink feedback channel) needs to be developed. However, extending each single PSFCH from RB to interlace will consume resources in the frequency domain, especially considering that the mapping between PSSCH (physical sidelink shared channel) and PSFCH may be one-to-many to ensure feedback transmission. In addition, there is an in-band radiation (IBE) problem due to power leakage from RB (resource block) in an interlace to other RBs in adjacent interlaces.

[0003] The present disclosure relates to methods, apparatus, and computer program products for sidelink transmissions including PSFCH.

[0004] One aspect of the present disclosure relates to a wireless communication method. In an embodiment, the wireless communication method includes: a first wireless communication terminal sends 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. It should be noted that the term "RB" used in the present disclosure may indicate: an interleaved resource block, a non-interleaved resource block, a physical resource block, and / or a virtual resource block (usually referred to as RB), unless otherwise explicitly stated.

[0005] Another aspect of the present disclosure relates to a wireless communication method. In an 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 an embodiment, the wireless communication terminal includes a communication unit and a processor. The processor is configured to: send 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.

[0007] Another aspect of the present disclosure relates to a wireless communication terminal. In an 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, wherein the common RB is shared by one or more PSFCHs.

[0008] Various embodiments may preferably achieve the following features:

[0009] 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.

[0010] Preferably, the common RBs are contiguous or non-contiguous.

[0011] Preferably, the common RBs are preconfigured, configured or predefined for each resource pool, each RB set or each subchannel.

[0012] Preferably, the common RB includes an intra-cell guard band RB.

[0013] Preferably, the common RB is determined according to a bitmap or at least one of: a preconfigured, configured or predefined number of common RBs or IRBs, a preconfigured, configured or predefined offset, a preconfigured, configured or predefined offset relative to a reference point.

[0014] Preferably, the preconfigured, configured or predefined offset (relative to a reference point) is a frequency offset measured in units of RB or IRB and may be zero.

[0015] Preferably, the reference point may be the highest or lowest RB (RB with the highest or lowest index) in a resource pool, in a subchannel, in an RB set, or in a BWP.

[0016] Preferably, the length of the bitmap corresponds to the number of RBs in an interlace, in a resource pool, in a set of RBs, in a subchannel, in a bandwidth part BWP, or in a set of RBs.

[0017] Preferably, the set of RBs is indicated as RBs not used for carrying PSFCH information via the bit status in the bitmap.

[0018] Preferably, the length of the bitmap corresponds to the number of IRBs in a resource pool, in a RB set, in a subchannel, in a BWP, or in a set of interleaved resource blocks IRBs.

[0019] Preferably, the set of IRBs is indicated as IRBs not used for carrying PSFCH information via the bit status in the bitmap.

[0020] Preferably, a first state of a bit of the bitmap indicates that the corresponding RB or IRB is not used for hybrid automatic repeat request (HARQ) acknowledgement (ACK) feedback or inter-user equipment coordination (IUC) information.

[0021] Preferably, the second state of the bit of the bitmap indicates that the corresponding RB or IRB is used for HARQ ACK feedback or Inter-User Equipment Coordination (IUC) information.

[0022] Preferably, a third state of a bit of the bitmap indicates that the corresponding RB or IRB is one of the common RBs.

[0023] Preferably, the preconfiguration, configuration or predefinition indicates one or more RBs, IRBs or REs that are not used for any transmission, and the one or more RBs, IRBs or REs are shared by multiple PSFCHs carrying HARQ-ACK feedback and IUC information.

[0024] Preferably, the common RB includes: a guard band RB, IRB or resource element RE, and the guard band RB, IRB or RE includes at least one of the following: the highest or lowest RB, IRB or RE in the RB, IRB or RE of the RB group in the configured, preconfigured or predefined common RB.

[0025] Preferably, the RB group is a set of RBs, including at least one of the following: adjacent RBs or IRBs in common RBs, or the lowest or highest RB or IRB in common RBs or IRBs.

[0026] Preferably, a fourth state of a bit of the bitmap indicates that the corresponding RB or IRB is not used for any transmission.

[0027] Preferably, the guard band resource set includes at least one of the following: one or more RBs, one or more IRBs, or one or more REs with a configured, preconfigured or predefined offset relative to a common RB or IRB, or a reference point, and the one or more RBs, one or more IRBs, or one or more REs are not used for any transmission.

[0028] Preferably, the reference point may be the highest or lowest RB (RB with the highest or lowest index) in a resource pool, a subchannel, an RB set, or a BWP.

[0029] Preferably, the common RB is determined based on the base RB, and the base RB is determined according to the number of RBs or IRBs from a resource pool, a subchannel, an RB set, or a BWP and at least one of the following: the length of the bitmap indicating the sent PSFCH carrying HARQ-ACK, the length of the bitmap indicating the sent PSFCH carrying IUC information, or the sum of the length of the bitmap indicating the sent PSFCH carrying HARQ-ACK and the length of the bitmap indicating the sent PSFCH carrying IUC information.

[0030] Preferably, the number of base RBs is determined as the remainder of the number of RBs or IRBs from a resource pool, a subchannel, an RB set, or a BWP divided by at least one of the following: the length of the bitmap indicating the sent PSFCH carrying HARQ-ACK, the length of the bitmap indicating the sent PSFCH carrying IUC information, or the sum of the length of the bitmap indicating the sent PSFCH carrying HARQ-ACK and the length of the bitmap indicating the sent PSFCH carrying IUC information.

[0031] Preferably, the number of common RBs or IRBs is determined by equally dividing or allocating the number of base RBs or IRBs in a resource pool, a subchannel, a RB set, a collection of RBs, or a BWP.

[0032] Preferably, the common RB or IRB is a subset of the base RB or IRB, and is indicated by a common RB or IRB bitmap or at least one of the following: a preconfigured, configured or predefined number of common RBs or IRBs, a preconfigured, configured or predefined offset, and a preconfigured, configured or predefined offset relative to a reference point.

[0033] Preferably, the preconfigured, configured or predefined offset (relative to the reference point) may be a frequency offset measured in units of RB or IRB and may be zero.

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

[0035] Preferably, the base RB or IRB includes a guard band RB or IRB.

[0036] Preferably, the guard band RB is a subset of the base RB indicated by an RB or IRB bitmap or at least one of the following: a preconfigured, configured or predefined number of guard band RBs or IRBs, a preconfigured, configured or predefined offset, a preconfigured, configured or predefined offset relative to a reference point.

[0037] Preferably, the preconfigured, configured or predefined offset (relative to a reference point) is a frequency offset measured in units of RB or IRB and may be zero.

[0038] Preferably, the reference point may be the highest or lowest RB or IRB (the RB or IRB with the highest or lowest index) in a resource pool, a subchannel, an RB set or a BWP.

[0039] Preferably, the guard band interleaving set comprises one or more configurations, preconfigured or predefined interleavings of a configuration, preconfigured or predefined offset relative to a common RB or IRB or reference point, and the one or more configurations, preconfigured or predefined interleavings are not used for any transmission.

[0040] Preferably, the reference point may be the highest or lowest RB (RB with the highest or lowest index) in a resource pool, a subchannel, an RB set or a BWP.

[0041] The exemplary embodiments disclosed herein are intended to provide features that will become apparent by reference to the following description in conjunction with the accompanying drawings. According to various embodiments, exemplary systems, methods, devices, and computer program products are disclosed herein. However, it should be understood that these embodiments are presented by way of example and not limitation, and that it will be apparent to those of ordinary skill in the art who read this disclosure that various modifications may be made to the embodiments of the present disclosure while remaining within the scope of the present disclosure.

[0042] Therefore, the present disclosure is not limited to the exemplary embodiments and applications described and illustrated herein. Additionally, the specific order and / or hierarchy of steps in the methods disclosed herein are exemplary methods only. Based on design preferences, the specific order or hierarchy of steps of the disclosed methods or processes can be rearranged while remaining within the scope of the present disclosure. Therefore, it will be understood by those of ordinary skill in the art that the methods and techniques disclosed herein present various steps or actions in an example order, and the present disclosure is not limited to the specific order or hierarchy presented, unless otherwise expressly stated.

[0043] The above aspects and other aspects and implementations thereof are described in more detail in the drawings, the description, and the claims.

[0044] Figure 1 A diagram showing resource blocks according to an embodiment of the present disclosure is shown.

[0045] Figure 2 A diagram showing resource blocks according to another embodiment of the present disclosure is shown.

[0046] Figure 3 A diagram showing resource blocks according to another embodiment of the present invention is shown.

[0047] Figure 4 A diagram showing resource blocks according to another embodiment of the present invention is shown.

[0048] Figure 5 A diagram showing resource blocks according to another embodiment of the present invention is shown.

[0049] Figure 6 A schematic diagram of a wireless communication terminal according to an embodiment of the present invention is shown.

[0050] In some embodiments, for interleaved transmission, the number of CRBs included in an interlace may be greater than ten.

[0051] In some embodiments, for PSFCH and PSSCH (Physical Sidelink Shared Channel) association, either the start subchannel association or all subchannel association may be used. If each interlace of PSFCH is associated with PSFCH, then all subchannel association may be more demanding.

[0052] In some embodiments, the UE (User Equipment) may determine the number of PSFCH resources available for multiplexing HARQ-ACK (Hybrid Automatic Repeat Request Acknowledgement) or collision information in PSFCH transmissions.

[0053] Embodiment 1:

[0054] In an embodiment, a set of RBs or IRBs is (pre)configured or predefined as common RBs or IRBs. In an embodiment, each PSFCH may occupy some or all resources on these RBs or IRBs. In an embodiment, these RBs or IRBs are shared by one or more PSFCHs. These RBs or IRBs are hereinafter referred to as common RBs or IRBs. In an embodiment, one or more PSFCHs may carry HARQ-ACK feedback and IUC information. In an embodiment, common RBs or IRBs may be continuous or non-continuous. In an embodiment, common RBs or IRBs may be (pre)configured or predefined for each resource pool, each RB set or each subchannel. In an embodiment, common RBs or IRBs may include intra-cell guard band RBs or IRBs. In an embodiment, as Figure 5 As shown, the common RBs or IRBs may be (pre)configured or determined by a bitmap or by at least one of the following: a (pre)configured and / or predefined number of RBs, a (pre)configured and / or predefined offset measured in an RB or IRB, an offset (pre)configured and / or predefined in an RB or IRB measured relative to a reference point. The reference point may be the highest or lowest RB and / or IRB in a resource pool, a subchannel, an RB set, or a BWP (e.g., an RB and / or IRB with the highest or lowest index). In an embodiment, the length of the bitmap may be associated with (e.g., equal to) the number of RBs in an interlace, in a resource pool, in an RB set, in a subchannel, in a BWP (bandwidth part), or in a set of RBs (e.g., via a bit state in a bitmap, the set of RBs is indicated as not being used to carry PSFCH information). In an embodiment, the length of the bitmap may be associated with (e.g., equal to) the number of IRBs (interleaved resource blocks) in a resource pool, in an RB set, in a subchannel, in a BWP, or in a set of IRBs (e.g., via a bit state in the bitmap, the set of IRBs being indicated as not being used to carry PSFCH information).

[0055] It should be noted that, unless explicitly stated otherwise, the term “RB” used in the present disclosure may indicate an interleaved resource block, a non-interleaved resource block, a physical resource block, and / or a virtual resource block.

[0056] Embodiment 2:

[0057] In an embodiment, a common RB or IRB may be indicated by a bitmap L. In an embodiment, the length of the bitmap L may be associated with (e.g., equal to) the number of RBs or IRBs in a resource pool. In an embodiment, each bit of the bitmap L includes three states, for example, represented as state 0, state 1, and state 2. A bit with state 0 indicates a corresponding RB or IRB that is not used for HARQ ACK feedback or inter-UE coordination information. A bit with state 1 indicates a corresponding RB or IRB of a PSFCH for HARQ ACK feedback or inter-UE coordination information. A bit with state 2 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 an embodiment, the PSFCH carrying HARQ-ACK feedback and inter-UE coordination information may correspond to a dedicated bitmap L, respectively.

[0058] Embodiment 3:

[0059] In an embodiment, a common RB or IRB may be indicated by a bitmap L. In an embodiment, each bit of the bitmap L includes three states, for example, represented as state 0, state 1, and state 2. A bit with state 0 indicates a corresponding RB or IRB that is not used for HARQACK feedback or inter-UE coordination information. A bit with state 1 indicates a corresponding RB or IRB for a PSFCH used for HARQ ACK feedback or inter-UE coordination information. A bit with state 2 indicates that the corresponding RB or IRB is one of the common RBs shared by multiple PSFCHs and not associated with a PSSCH. In an embodiment, the PSFCH carrying HARQ-ACK feedback and inter-UE coordination information may correspond to a dedicated bitmap L, respectively. In an embodiment, preconfiguration, configuration, or predefinition indicates that one or more RBs (for example, guard band RBs) are not used for any transmission, and the one or more RBs are shared by multiple PSFCHs carrying HARQ-ACK feedback and IUC information. Preconfiguration, configuration, and predefinition may be accomplished by a bitmap having at least one state (for example, 0 indicates that one or more RBs are not used for any transmission). In an embodiment, as Figure 5 As shown, the preconfiguration, configuration or predefinition may be accomplished by at least one of the following: a preconfigured or configured number of common RBs or IRBs, a preconfigured or configured offset, and a preconfigured or configured offset relative to a reference point.

[0060] Embodiment 4:

[0061] In an embodiment, a common RB or IRB may be indicated by a bitmap L. In an embodiment, each bit of the bitmap L includes three states, for example, represented as state 0, state 1, and state 2. A bit with state 0 indicates a corresponding RB or IRB that is not used for HARQ ACK feedback or inter-UE coordination information. A bit with state 1 indicates a corresponding RB or IRB for a PSFCH used for HARQ ACK feedback or inter-UE coordination information. A bit with state 2 indicates that the corresponding RB or IRB is one of the common RBs shared by multiple PSFCHs and not associated with a PSSCH. In an embodiment, the PSFCH carrying HARQ-ACK feedback and inter-UE coordination information may correspond to a dedicated bitmap L, respectively. In an embodiment, a common RB or IRB may have a guard band RB, IRB, or resource element RE, and the guard band RB, IRB, or RE may have at least one of the following: the highest or lowest RB, IRB, or RE in the RB group (e.g., including one or more common RBs or IRBs) in the most configured, preconfigured, or predefined common RB or IRB. In an embodiment, an RB group is a set of RBs, including at least one of the following: adjacent RBs or IRBs in a common RB or IRB, the lowest RB or IRB in a common RB or IRB (RB or IRB with the lowest index), or the highest RB or IRB in a common RB or IRB (RB or IRB with the highest index).

[0062] Embodiment 5:

[0063] In an embodiment, a common RB or IRB may be indicated by a bitmap L. In an embodiment, each bit of the bitmap L includes four states, for example, represented as state 0, state 1, state 2, and state 3. A bit with state 0 indicates a corresponding RB or IRB that is not used for HARQ ACK feedback or inter-UE coordination information. A bit with state 1 indicates a corresponding RB or IRB of a PSFCH used for HARQ ACK feedback or inter-UE coordination information. A bit with state 2 indicates that the corresponding RB or IRB is a common RB in a common RB shared by multiple PSFCHs and not associated with a PSSCH. A bit with state 3 indicates that the corresponding RB or IRB is a guard band RB or IRB, in which any signal / channel including, for example, HARQ ACK feedback, inter-UE coordination information, or S-SSB (sidelink synchronization signal block) cannot be sent. In an embodiment, the PSFCH carrying HARQ-ACK feedback and inter-UE coordination information may correspond to a dedicated bitmap L, respectively.

[0064] Embodiment 6:

[0065] In an embodiment, a common RB is determined based on a base RB, and a base RB is determined according to a number A and a number B. In an embodiment, the number A is the number of RBs or IRBs from a resource pool, a subchannel, an RB set, or a BWP, and the number B is at least one of the following: the length of a bitmap for indicating a transmitted PSFCH carrying HARQ-ACK, the length of a bitmap for indicating a transmitted PSFCH carrying IUC information, or the sum of the length of a bitmap for indicating a transmitted PSFCH carrying HARQ-ACK and the length of a bitmap for indicating a transmitted PSFCH carrying IUC information. In an embodiment, the base RB is the remainder of the number A divided by the number B. For example, assuming that the number of RBs or IRBs from a resource pool, a subchannel, an RB set, or a BWP is 25, and the sum of the length of a bitmap for indicating a transmitted PSFCH carrying HARQ-ACK and the length of a bitmap for indicating a transmitted PSFCH carrying IUC information is 20, the number of base RBs is 5. In an embodiment, the base RBs may be distributed at the edge and / or center of a resource pool, RB set, subchannel, or BWP. Figure 4 As shown, the number of common RBs is determined by equally dividing or allocating the number of base RBs among resource pools, RB sets, subchannels, RB sets, or BWPs. The RB set herein refers to a preconfigured, configured, or predefined number of RBs from a resource pool, subchannel, RB set, or BWP.

[0066] In an embodiment, the common RB or IRB is a subset of the base RB or IRB, indicated by a common RB or IRB bitmap or at least one of the following: a preconfigured, configured or predefined number of common RBs or IRBs, a preconfigured, configured or predefined offset, a preconfigured, configured or predefined relative to a reference point (see Figure 5 ). A preconfigured, configured or predefined offset (relative to a reference point) may be a frequency offset measured in RBs or IRBs and may be 0 (see Figure 5 ). The reference point may be the highest or lowest PRB or IRB (the PRB or IRB with the highest or lowest index) in a resource pool, subchannel, RB set, or BWP. In an embodiment, the length of the common RB or IRB bitmap is associated with (e.g., equal to or a fraction of) the number of base RBs or IRBs.

[0067] In an embodiment, the guard band RB or IRB is a subset of the base RB or IRB, which is indicated by a guard band RB or IRB bitmap or at least one of the following: a preconfigured, configured or predefined number of guard band RBs or IRBs, a preconfigured, configured or predefined offset, a preconfigured, configured or predefined offset relative to a reference point (see Figure 5). A preconfigured, configured or predefined offset (relative to a reference point) may be a frequency offset measured in RBs or IRBs and may be zero (see Figure 5 ). The reference point may be the highest or lowest PRB or IRB (the PRB or IRB with the highest or lowest index) in a resource pool, subchannel, RB set, or BWP. In an embodiment, the length of the guard band RB or IRB bitmap is associated with (e.g., equal to or a fraction of) the number of base RBs or IRBs.

[0068] Embodiment 7:

[0069] In an embodiment, Figure 3 As shown, a guard band interlace set including at least one guard band interlace configured, preconfigured or predefined not used for any transmission has a configured, preconfigured or predefined offset relative to a common RB or IRB.

[0070] Embodiment 8:

[0071] Figure 1 FIG. 2 shows a resource block diagram according to an embodiment of the present disclosure. Figure 1 As shown, common RBs that can be shared by one or more PSFCHs are configured. Common RBs are not associated with PSSCHs (eg, not used to carry HARQ-ACK feedback and inter-UE coordination information). In addition, guard band RBs that are not used for any transmission are configured.

[0072] Figure 2 FIG. 2 shows a resource block diagram according to an embodiment of the present disclosure. Figure 2 As shown, there may be a (pre-)configured offset between multiple RBs associated with a single PSFCH.

[0073] Figure 3 FIG. 2 shows a resource block diagram according to an embodiment of the present disclosure. Figure 3 As shown, a guard band interlace set including one or more guard band interlaces may be configured. For example, a guard band interlace may include one or more guard band RBs and / or an interlace having a frequency offset (eg, 0) from a common RB.

[0074] Embodiment 9:

[0075] In an embodiment, dedicated common RBs may be configured, preconfigured or predefined for PSFCH to carry ACK (acknowledgement) or NACK (negative acknowledgement) feedback, respectively. Common RBs for ACK or NACK feedback may be configured or preconfigured via a separate bit state in a bitmap, or individually configured, preconfigured or predefined by at least one of the following: a preconfigured, configured or predefined number of common RBs or IRBs, a preconfigured, configured or predefined offset, or a preconfigured, configured or predefined offset relative to a reference point.

[0076] Depending on whether a PSFCH carrying ACK or NACK feedback is transmitted, the UE may perform transmission through a common RB corresponding to the ACK or NACK feedback.

[0077] In an embodiment, Figure 2 or Figure 3 As shown, the pattern of PSFCH resources carrying HARQ-ACK information or IUC information can be indicated by at least one of the following: the number of configured RBs, a (pre) configured or predefined offset, and / or a (pre) configured or predefined offset relative to a reference point.

[0078] In an embodiment, Figure 4 As shown, the base RB or IRB may be equally divided or allocated within the subchannel including the common RB or IRB.

[0079] In an embodiment, Figure 5 As shown, the RB or IRB in the PSFCH that carries HARQ ACK information or IUC information has a configured, preconfigured or predefined frequency offset. There is a configured, preconfigured or predefined frequency offset between the common RB or IRB or the guard band RB or IRB. The common RB or IRB or the guard band RB or IRB has a configured, preconfigured or predefined frequency offset relative to the reference point.

[0080] In an embodiment, a set of guard band resources including at least one of RBs, IRBs or REs not used for any transmission has a configured, preconfigured or predefined offset relative to the common RBs.

[0081] According to an embodiment of the present disclosure, the wireless communication method includes: a first wireless communication terminal (e.g., UE) sends a physical sidelink feedback channel PSFCH 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.

[0082] According to an embodiment of the present disclosure, 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 (other) PSFCHs.

[0083] Details of the common RB, PSFCH, and related configurations or operations may be determined by referring to the above and will not be repeated here.

[0084] Figure 6 A diagram relating to a wireless communication terminal 30 according to an embodiment of the present invention. The wireless communication terminal 30 may be an electronic tag, a mobile phone, a laptop computer, a tablet computer, an e-book, or a portable computer system, and is not limited herein. 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), a read-only memory (ROM), a flash memory, a 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 data packets) according to the processing results of the processor 300. In an embodiment, the communication unit 320 sends and receives signals through at least one antenna 322.

[0085] In an embodiment, the storage unit 310 and the program code 312 may be omitted, and the processor 300 may include a storage unit storing the program code.

[0086] The processor 300 may implement any of the steps in the exemplary embodiments on the wireless communication terminal 30 , for example, by executing the program code 312 .

[0087] The communication unit 320 may be a transceiver. Alternatively or additionally, the communication unit 320 may combine a transmitting unit and a receiving unit configured to transmit and receive signals to and from a wireless communication node, respectively.

[0088] In some embodiments, the wireless communication terminal 30 can be used to perform one of the operations of the above-mentioned tags. In some embodiments, the processor 300 and the communication unit 320 cooperate to perform the above-mentioned operations. For example, the processor 300 performs the operation and sends or receives signals, messages, and / or information through the communication unit 320.

[0089] Although various embodiments of the present disclosure have been described above, it should be understood that they are presented only by way of example, rather than by way of limitation. Similarly, various figures may depict example architectures or configurations, which are provided to enable those of ordinary skill in the art to understand the exemplary features and functions of the present disclosure. However, these persons should understand that the present disclosure is not limited to the example architectures or configurations shown, but may be implemented using various alternative architectures and configurations. In addition, as will be understood by those of ordinary skill in the art, one or more features of an embodiment may be combined with one or more features of another embodiment described herein. Therefore, the breadth and scope of the present disclosure should not be limited by any of the above-described exemplary embodiments.

[0090] It should also be understood that any reference to an element using names such as "first", "second", etc., as used herein, does not generally limit the quantity or order of these elements. On the contrary, these names can be used herein as a convenient method for distinguishing two or more elements or element instances. Therefore, reference to a first and a second element does not mean that only two elements can be used, or that the first element must be located before the second element in some way.

[0091] In addition, persons of ordinary skill in the art will appreciate that information and signals may be represented using any of a variety of different techniques and methods. For example, data, instructions, commands, information, signals, bits, and symbols that may be referenced in the above description may be represented by voltage, current, electromagnetic waves, magnetic fields or particles, optical fields or particles, or any combination thereof.

[0092] The skilled person should also understand that any of the various illustrative logical blocks, units, processors, components, circuits, methods, and functions combined with the aspects disclosed herein may be implemented by electronic hardware (e.g., digital implementation, analog implementation, or a combination of both), firmware, various forms of programs, or design codes including instructions (for convenience, may be referred to herein as "software" or "software units"), or any combination of these technologies.

[0093] In order to clearly illustrate this interchangeability of hardware, firmware and software, various illustrative components, blocks, units, circuits, and steps have been summarized above from their functional aspects. Whether these functions are implemented as hardware, firmware or software, or as a combination of these technologies, depends on the specific application and the design constraints imposed on the entire system. Skilled technicians can implement the described functions in various ways for each specific application, but this implementation decision will not lead to departure 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 functions described herein. As used herein, the term "configured to" or "configured for" regarding a specific operation or function refers to a processor, device, component, circuit, structure, machine, unit, etc. that is physically constructed, programmed and / or arranged to perform a specific operation or function.

[0094] In addition, the technician should understand that the various illustrative logic blocks, units, devices, components and circuits described herein can be implemented in an integrated circuit (IC) or performed by an integrated circuit (IC), which can 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 can also include antennas and / or transceivers to communicate with various components within a network or within a device. The general-purpose processor can be a microprocessor, but in an alternative, the processor can be any conventional processor, controller, or state machine. The processor can also be implemented as a combination of computing devices, for example, a combination of a DSP and a microprocessor, a plurality of microprocessors, a combination of one or more microprocessors and a DSP core, or any other suitable configuration to perform the functions described herein. If implemented in software, the function can be stored as one or more instructions or codes on a computer-readable medium. Therefore, the steps of the method or algorithm disclosed herein can be implemented as software stored on a computer-readable medium.

[0095] Computer-readable media include both computer storage media and communication media, including any medium that can transfer a computer program or code from one place to another. Storage media can be any available media that can be accessed by a computer. By way of example, but not limitation, such computer-readable media may include RAM, ROM, EEPROM, CD-ROM or other optical disk storage, magnetic disk storage or other magnetic storage devices, or any other medium that can be used to store the desired program code in the form of instructions or data structures and can be accessed by a computer.

[0096] As used herein, the term "unit" refers to software, firmware, hardware, and any combination of these elements for performing the relevant functions described herein. In addition, for the purpose of discussion, each unit is described as a discrete unit; however, as will be appreciated by one of ordinary skill in the art, two or more units may be combined to form a single unit that performs the relevant functions according to the embodiments of the present disclosure.

[0097] In addition, memory or other storage and communication components can be used in embodiments of the present disclosure. It should be understood that, for the purpose of clarity, the above description has described embodiments of the present disclosure with reference to different functional units and processors. However, it is apparent that any suitable functional distribution between different functional units, processing logic elements or domains can be used without departing from the present disclosure. For example, the functions illustrated as being performed by a separate processing logic element or controller can be performed by the same processing logic element or controller. Therefore, reference to a specific functional unit is only a reference to a suitable component for providing the function, rather than indicating a strict logical or physical structure or organization.

[0098] Those skilled in the art will readily appreciate various modifications to the implementations described in this disclosure, and the general principles defined herein may be applied to other implementations without departing from the scope of this disclosure. Therefore, this disclosure is not intended to be limited to the implementations shown herein, but as described in the claims, should be given the widest scope consistent with the novel features and principles disclosed herein.

Claims

1. A wireless communication method, comprising: A physical sidelink feedback channel PSFCH is sent by the first wireless communication terminal to the second wireless communication terminal via a common resource block RB, wherein the common RB is shared by one or more PSFCHs.

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 wireless communication terminal from the second wireless communication terminal. 3 . The wireless communication method according to claim 1 , wherein the common RBs are continuous or non-contiguous. 4 . The wireless communication method according to claim 1 , wherein the common RB is preconfigured, configured or predefined for each resource pool, each RB set or each subchannel. 5 . The wireless communication method according to claim 1 , wherein the common RB comprises one or more intra-cell guard band RBs.

6. A wireless communication method according to any one of claims 1 to 5, wherein the common RB is determined based on a bitmap or at least one of the following: a preconfigured, configured or predefined number of the common RBs or IRBs, a preconfigured, configured or predefined offset, a preconfigured, configured or predefined offset relative to a reference point.

7. The wireless communication method of claim 6, wherein the length of the bitmap corresponds to the number of RBs in an interlace, in a resource pool, in an RB set, in a subchannel, in a bandwidth part (BWP), or in a set of RBs. 8 . The wireless communication method according to claim 7 , wherein the set of RBs is indicated as the RBs not used to carry the PSFCH information via a bit status in the bitmap.

9. The wireless communication method according to claim 6, wherein the length of the bitmap corresponds to the number of IRBs in a resource pool, in an RB set, in a subchannel, in a BWP, or in a set of interleaved resource blocks (IRBs). 10 . The wireless communication method according to claim 9 , wherein the set of IRBs is indicated as the IRBs not used for carrying the PSFCH information via a bit status in the bitmap.

11. The wireless communication method according to any one of claims 6 to 10, wherein a first state of a bit of the bitmap indicates that a corresponding RB or IRB is not used for hybrid automatic repeat request (HARQ) acknowledgement (ACK) feedback or inter-user equipment coordination (IUC) information.

12. The wireless communication method according to any one of claims 6 to 11, wherein a second state of a bit of the bitmap indicates that a corresponding RB or IRB is used for HARQ ACK feedback or inter-user equipment coordination (IUC) information. 13 . The wireless communication method according to claim 6 , wherein a third state of a bit of the bitmap indicates that a corresponding RB or IRB is the common RB.

14. The wireless communication method according to any one of claims 6 to 13, wherein the preconfiguration, configuration or predefinition indicates that one or more RBs, IRBs or REs are not used for any transmission, and the one or more RBs, IRBs or REs are shared by multiple PSFCHs carrying HARQ-ACK feedback and IUC information.

15. The wireless communication method according to any one of claims 6 to 14, wherein the common RB comprises: A guard band RB, IRB or resource element RE, and the guard band RB, IRB or RE includes at least one of the following: the highest or lowest RB, IRB or RE in the RB, IRB or RE of the RB group in the common RB configured, preconfigured or predefined.

16. The wireless communication method according to claim 15, wherein the RB group is a set of RBs, and the set of RBs includes at least one of the following: adjacent RBs or IRBs in the common RBs, or the lowest or highest RB or IRB in the common RBs or IRBs. 17 . The wireless communication method according to claim 6 , wherein a fourth state of a bit of the bitmap indicates that a corresponding RB or IRB is not used for any transmission.

18. A wireless communication method according to any one of claims 1 to 17, wherein the guard band resource set includes at least one of the following: one or more RBs, one or more IRBs, or one or more REs with a configured, preconfigured or predefined offset relative to the common RB or IRB, and the one or more RBs, one or more IRBs, or one or more REs are not used for any transmission.

19. The wireless communication method according to any one of claims 1 to 5, wherein the common RB is determined based on a base RB, and the base RB is determined according to the number of RBs or IRBs of a resource pool, a subchannel, an RB set or a BWP and at least one of the following: the length of a bitmap indicating the transmitted PSFCH carrying HARQ-ACK, the length of a bitmap indicating the transmitted PSFCH carrying IUC information, or the sum of the length of the bitmap indicating the transmitted PSFCH carrying HARQ-ACK and the length of the bitmap indicating the transmitted PSFCH carrying the IUC information.

20. The wireless communication method according to claim 19, wherein the number of base RBs is determined as the remainder of the number of RBs or IRBs of a resource pool, a subchannel, an RB set, or a BWP divided by at least one of the following: the length of a bitmap for indicating the transmitted PSFCH carrying HARQ-ACK, 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-ACK and the length of the bitmap for indicating the transmitted PSFCH carrying the IUC information.

21. The wireless communication method according to claim 19 or 20, wherein the number of common RBs is determined by equally dividing the number of base RBs in a resource pool, an RB set, a subchannel, a set of RBs, or a BWP.

22. A wireless communication method according to any one of claims 19 to 21, wherein the common RB is a subset of the base RB indicated by a common RB bitmap or at least one of the following: a preconfigured, configured or predefined number of the common RBs, a preconfigured, configured or predefined offset, a preconfigured, configured or predefined offset relative to a reference point.

23. The wireless communication method according to any one of claims 19 to 22, wherein the guard band RB is a subset of the base RB indicated by a guard band RB bitmap or at least one of the following: a preconfigured, configured or predefined number of the base RBs or common RBs, a preconfigured, configured or predefined offset, a preconfigured, configured or predefined offset relative to a reference point.

24. A wireless communication method according to any one of claims 1 to 23, wherein the guard band interleave set includes one or more configured, preconfigured or predefined interlaces that are not used for any transmission and have a configured, preconfigured or predefined offset relative to the common RB or reference point.

25. A wireless communication method, comprising: A physical sidelink feedback channel PSFCH is received by the second wireless communication terminal from the first wireless communication terminal via a common resource block RB, wherein the common RB is shared by one or more PSFCHs.

26. The wireless communication method according to claim 25, 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.

27. The wireless communication method according to claim 25 or 26, wherein the common RBs are contiguous or non-contiguous.

28. The wireless communication method according to any one of claims 25 to 27, wherein the common RB is preconfigured, configured or predefined for each resource pool, each RB set or each subchannel.

29. The wireless communication method according to any one of claims 25 to 28, wherein the common RB comprises one or more intra-cell guard band RBs.

30. A wireless communication method according to any one of claims 25 to 29, wherein the common RB is determined based on a bitmap or at least one of the following: a preconfigured, configured or predefined number of the common RBs or IRBs, a preconfigured or configured offset, a preconfigured or configured offset relative to a reference point.

31. The wireless communication method of claim 30, wherein the length of the bitmap corresponds to the number of RBs in an interlace, in a resource pool, in an RB set, in a subchannel, in a bandwidth part (BWP), or in a set of RBs.

32. The wireless communication method according to claim 31, wherein the set of RBs is indicated as the RBs not used to carry the PSFCH information via a bit status in the bitmap.

33. The wireless communication method of claim 30, wherein the length of the bitmap corresponds to the number of IRBs in a resource pool, in an RB set, in a subchannel, in a BWP, or in a set of interleaved resource blocks (IRBs).

34. The wireless communication method of claim 33, wherein the set of IRBs is indicated via a bit state in the bitmap as the IRBs not used to carry the PSFCH information.

35. The wireless communication method according to any one of claims 30 to 34, wherein a first state of a bit of the bitmap indicates that a corresponding RB or IRB is not used for hybrid automatic repeat request (HARQ) acknowledgement (ACK) feedback or inter-user equipment coordination (IUC) information.

36. The wireless communication method according to any one of claims 30 to 35, wherein a second state of a bit of the bitmap indicates that a corresponding RB or IRB is used for HARQ ACK feedback or inter-user equipment coordination (IUC) information.

37. The wireless communication method according to any one of claims 30 to 36, wherein a third state of a bit of the bitmap indicates that a corresponding RB or IRB is one of the common RBs.

38. A wireless communication method according to any one of claims 30 to 37, wherein the preconfiguration, configuration or predefinition indicates that one or more RBs, IRBs or REs are not used for any transmission, and the one or more RBs, IRBs or REs are shared by multiple PSFCHs carrying HARQ-ACK feedback and IUC information.

39. The wireless communication method according to any one of claims 30 to 38, wherein the common RB comprises: A guard band RB, IRB or resource element RE, and the guard band RB, IRB or RE includes at least one of the following: the highest or lowest RB, IRB or RE in the RB, IRB or RE of the RB group in the common RB configured, preconfigured or predefined.

40. The wireless communication method according to claim 39, wherein the RB group is a set of RBs, and the set of RBs includes at least one of the following: adjacent RBs or IRBs in the common RBs, or the lowest or highest RBs or IRBs in the common RBs or IRBs.

41. The wireless communication method according to any one of claims 30 to 37, wherein a fourth state of a bit of the bitmap indicates that a corresponding RB or IRB is not used for any transmission.

42. A wireless communication method according to any one of claims 25 to 41, wherein the guard band resource set includes at least one of the following: one or more RBs, one or more IRBs, or one or more REs with a configured, preconfigured or predefined offset relative to the common RB or IRB, and the one or more RBs, one or more IRBs, or one or more REs are not used for any transmission.

43. The wireless communication method according to any one of claims 25 to 29, wherein the common RB is determined based on a base RB, and the base RB is determined according to the number of RBs or IRBs from a resource pool, a subchannel, an RB set, or a BWP and at least one of the following: the length of a bitmap indicating the transmitted PSFCH carrying HARQ-ACK, the length of a bitmap indicating the transmitted PSFCH carrying IUC information, or the sum of the length of the bitmap indicating the transmitted PSFCH carrying HARQ-ACK and the length of the bitmap indicating the transmitted PSFCH carrying the IUC information.

44. The wireless communication method according to claim 43, wherein the number of base RBs is determined as the remainder of the number of RBs or IRBs from a resource pool, a subchannel, an RB set, or a BWP divided by at least one of the following: the length of the bitmap used to indicate the sent PSFCH carrying HARQ-ACK, the length of the bitmap used to indicate the sent PSFCH carrying IUC information, or the sum of the length of the bitmap used to indicate the sent PSFCH carrying HARQ-ACK and the length of the bitmap used to indicate the sent PSFCH carrying the IUC information.

45. The wireless communication method according to claim 43 or 44, wherein the number of common RBs is determined by equally dividing the number of base RBs in a resource pool, a RB set, a subchannel, a set of RBs, or a BWP.

46. ​​A wireless communication method according to any one of claims 43 to 45, wherein the common RB is a subset of the base RB indicated by a common RB bitmap or at least one of the following: a preconfigured, configured or predefined number of the common RBs, a preconfigured, configured or predefined offset, a preconfigured, configured or predefined offset relative to a reference point.

47. A wireless communication method according to any one of claims 43 to 46, wherein the guard band RB is a subset of the base RB indicated by a guard band RB bitmap or at least one of the following: a preconfigured, configured or predefined number of the common RBs or base RBs, a preconfigured, configured or predefined offset, a preconfigured, configured or predefined offset relative to a reference point.

48. A wireless communication method according to any one of claims 25 to 47, wherein the guard band interleave set includes one or more configured, preconfigured or predefined interlaces that are not used for any transmission and have a configured, preconfigured or predefined offset relative to the common RB or reference point.

49. A wireless communication terminal, comprising: Communication unit; as well as The processor is configured to send 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.

50. The wireless communication terminal according to claim 49, wherein the processor is further configured to execute the wireless communication method according to any one of claims 2 to 24.

51. A wireless communication terminal, comprising: Communication unit; as well as The processor is configured to receive a physical sidelink feedback channel PSFCH from a first wireless communication terminal via a common resource block RB, wherein the common RB is shared by one or more PSFCHs.

52. The wireless communication terminal according to claim 51, wherein the processor is further configured to execute the wireless communication method according to any one of claims 26 to 48.

53. A computer program product, comprising computer-readable program medium codes stored thereon, which, when executed by a processor, cause the processor to implement the wireless communication method according to any one of claims 1 to 48.

Images