Resource determination method, communication node and storage medium
By determining the time-frequency resources of the logical time slots in Sidelink communication and eliminating discontinuous resources, the problems of channel access failure and time-frequency resources in the prior art are solved, and communication efficiency and stability are improved.
Patent Information
- Application Number
- PCT/CN2024/098828
- Authority / Receiving Office
- WO · WO
- Patent Type
- Applications
- Current Assignee / Owner
- Priority Date
- 2023-09-28
- Filing Date
- 2024-06-13
- Publication Date
- 2025-04-03
AI Technical Summary
The terminal-autonomous resource selection mechanism in the existing Sidelink is prone to failure of channel access on the unauthorized spectrum, and the selected time-frequency resources are discontinuous in the time domain, affecting communication efficiency.
By determining the second resource set, where any time frequency resource is a time frequency resource continuous with a logical time slot, and excluding discontinuous time frequency resources, the third resource set is obtained. This method increases the opportunity for continuous time-frequency resources in the time domain and reduces the need for channel access competition.
The success rate and communication efficiency of channel access are improved, the channel competition needs of the terminal before transmission is reduced, and the communication stability on the unauthorized spectrum is enhanced.
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Figure CN2024098828_03042025_PF_FP_ABST
Abstract
Description
Resource determination method, communication node and storage medium
[0001] CROSS-REFERENCE TO RELATED APPLICATIONS
[0002] This application claims priority to the Chinese patent application filed with the China Patent Office on September 28, 2023, with application number 202311289793.9 and invention name “Resource Determination Method, Communication Node and Storage Medium”. The entire contents of the Chinese patent application are incorporated herein by reference. Technical Field
[0003] The present application relates to the field of wireless communication technology, for example, to a resource determination method, a communication node, and a storage medium. Background Art
[0004] In sidelink communications, a transmitting device selects resources for signaling / data transmission. One method involves scheduling by a central node (e.g., a base station). The central node determines the resources to be used by the device for transmission and notifies the terminal via signaling. Alternatively, a contention-based resource selection method is used. In this method, a device monitors resource usage within a resource pool and, based on the monitoring results, autonomously selects resources within the resource pool for signaling / data transmission. This contention-based resource selection method is also known as a terminal-independent resource selection method.
[0005] The existing terminal-independent resource selection mechanism in sidelink is designed for licensed spectrum. The N time-frequency resources selected by this mechanism are discrete in the time domain and are not guaranteed to fall within the same set of contiguous channels in the frequency domain. A channel is a carrier or portion of a carrier consisting of a set of contiguous resource blocks (RBs). For example, a channel includes 20 MHz of frequency-domain resources within a single carrier.
[0006] In unlicensed spectrum, before using time-frequency resources, a communications device must perform a channel access process to assess channel availability (or whether the channel is idle). If one or more channels are assessed as available (or their contribution), the communication node can occupy them for information transmission, indicating a successful Listen Before Talk (LBT) process. Otherwise, the channels are determined to be occupied, and LBT has failed. The aforementioned sidelink autonomous resource selection mechanism, when used in unlicensed spectrum, is prone to channel access failures.
[0007] Summary of the Invention
[0008] The present application provides a resource determination method, a communication node, and a storage medium.
[0009] An embodiment of the present application provides a resource determination method, including: determining a second resource set, wherein any time-frequency resource in the second resource set is a time-frequency resource with continuous logical time slots; excluding at least one time-frequency resource in the second resource set, and the remaining time-frequency resources in the second resource set after the resources are excluded are a third resource set.
[0010] An embodiment of the present application further provides a communication node, comprising: a memory, a processor, and a computer program stored in the memory and executable on the processor, wherein the processor implements the above-mentioned resource determination method when executing the program.
[0011] An embodiment of the present application further provides a computer-readable storage medium, on which a computer program is stored, and when the program is executed by a processor, the above-mentioned resource determination method is implemented. BRIEF DESCRIPTION OF THE DRAWINGS
[0012] FIG1 is a flow chart of a resource determination method provided by an embodiment;
[0013] FIG2 is a schematic diagram of time-frequency resources in a resource pool provided by an embodiment;
[0014] FIG3 is a schematic diagram of time-frequency resources in another resource pool provided by an embodiment;
[0015] FIG4 is a schematic diagram of excluding time-frequency resources in a resource pool within a time range according to an embodiment;
[0016] FIG5 is a schematic structural diagram of a resource determination device provided by an embodiment;
[0017] FIG6 is a schematic diagram of the hardware structure of a communication node provided by an embodiment. DETAILED DESCRIPTION
[0018] The present application is described below in conjunction with the accompanying drawings and embodiments. It will be understood that the specific embodiments described herein are merely intended to explain the present application and are not intended to limit the present application. It should be noted that, unless there is a conflict, the embodiments and features within the embodiments of the present application may be combined with each other in any manner. It should also be noted that, for ease of description, the accompanying drawings only illustrate portions relevant to the present application, not all structures.
[0019] FIG1 is a flow chart of a resource determination method provided by an embodiment. The method can be applied to a terminal device, such as a user equipment (UE). As shown in FIG1 , the method provided by this embodiment includes steps 110 and 120.
[0020] In step 110, a second resource set is determined, wherein any time-frequency resource in the second resource set is a time-frequency resource with continuous logical time slots.
[0021] In step 120, at least one time-frequency resource in the second resource set is excluded, and the remaining time-frequency resources in the second resource set after the resource exclusion are the third resource set.
[0022] In this embodiment, by determining a second resource set and determining a third resource set therefrom, time-frequency resources with logically continuous time slots are included, thereby increasing the chance of continuity in the time domain. When the time-frequency resources selected by the terminal are continuous in the time domain and fall into the same group of multiple continuous channels in the frequency domain, a terminal does not need to go through the channel access process to compete for a channel before transmitting in each time slot on the selected time-frequency resource comprising multiple time slots. After a terminal successfully competes for a channel through the channel access process before transmitting on a time-frequency resource, it can directly transmit in the subsequent time slots included in the time-frequency resource transmission without competing for a channel. Compared with the transmission in the previous time slot of the time-frequency resource, the transmission in each subsequent time slot can be a repeated transmission of the same transmission block or a different transmission block, thereby increasing the chance of channel access.
[0023] In one embodiment, the second resource set is a subset of the first resource set, the first resource set includes one or more logically continuous time slots in a resource pool within a set time interval, and any time frequency resource determined in the second resource set is a time frequency resource with continuous logical time slots and continuous physical time slots.
[0024] In one embodiment, the frequency domain of each time-frequency resource in the second resource set includes at least one of the following:
[0025] One or more consecutive subchannels in a resource pool;
[0026] One or more consecutive resource block sets, and each of the time-frequency resources includes one or more consecutive sub-channels in each resource block set.
[0027] In one embodiment, determining the second resource set includes:
[0028] The time-frequency resources with discontinuous physical time slots in the first resource set are excluded, and the remaining time-frequency resources in the first resource set after the resources are excluded are the second resource set.
[0029] In one embodiment, determining the second resource set includes:
[0030] The second resource set is defined as time-frequency resources with continuous physical time slots in the first resource set.
[0031] In one embodiment, the method further comprises:
[0032] The parameters of the physical side link transmission are provided to the first terminal through a higher layer, where the parameters of the physical side link transmission include the number of consecutive time slots.
[0033] The physical side link transmission includes one of the following: transmission of a physical side link control channel (Physical Sidelink Control Channel, PSCCH) and a physical side link shared channel (Physical Sidelink Shared Channel, PSSCH), transmission of PSCCH, and transmission of PSSCH.
[0034] In one embodiment, the number of consecutive time slots includes at least one of the following:
[0035] The number of consecutive physical time slots for multiple consecutive time slot transmissions;
[0036] Number of consecutive physical time slots;
[0037] The number of consecutive logical time slots for multiple consecutive time slot transmissions;
[0038] Number of consecutive logical time slots.
[0039] In one embodiment, the parameters transmitted by the physical edge link further include at least one of the following:
[0040] Remaining packet delay budget;
[0041] The number of subchannels for PSSCH transmission;
[0042] The number of resource block sets used for PSCCH and PSSCH transmissions;
[0043] The number of subchannels used in each resource block set used for PSCCH and PSSCH transmission;
[0044] Resource reservation interval;
[0045] The set of resource blocks with consecutive LBT failures.
[0046] In one embodiment, the parameters of the physical side link transmission also include a remaining packet delay budget.
[0047] The remaining packet delay budget satisfies at least one of the following:
[0048] The number of consecutive time slots is less than or equal to the remaining packet delay budget;
[0049] The converted value of the number of consecutive time slots is less than or equal to the remaining packet delay budget;
[0050] The number of consecutive time slots is less than or equal to a converted value of the remaining packet delay budget;
[0051] The corresponding value of the number of consecutive time slots is less than or equal to the remaining packet delay budget;
[0052] The number of consecutive time slots is less than or equal to the difference between the remaining information packet delay budget and a first set value, and the first set value is determined according to the subcarrier spacing configuration of the side link bandwidth portion.
[0053] In one embodiment, the parameters transmitted by the physical side link further include a resource reservation interval, the resource reservation interval is converted into a value in units of logical time slots, and the value in units of logical time slots is marked as a conversion value.
[0054] The conversion value satisfies at least one of the following:
[0055] The number of consecutive time slots is less than or equal to the conversion value;
[0056] The number of consecutive time slots is less than or equal to the sum of the conversion value and a compensation value;
[0057] The number of consecutive time slots is less than or equal to 2 μ multiplied by the converted value;
[0058] The number of consecutive time slots is less than or equal to 2 μ The sum of the product of the conversion value and a compensation value;
[0059] Wherein, μ is a non-negative integer, and μ is determined according to the subcarrier spacing configuration of the side link bandwidth part.
[0060] In one embodiment, the parameters of the physical side link transmission also include a remaining packet delay budget.
[0061] Any resource in the first resource set is no earlier than the sum of a first time and a second time, and the second time satisfies at least one of the following:
[0062] The second time is less than or equal to the difference between the remaining packet delay budget and the number of consecutive time slots plus one;
[0063] The second time is less than or equal to the difference between the remaining information packet delay budget and a second set value plus one, and the second set value is obtained by converting the number of consecutive time slots in units of logical time slots into units of physical time slots.
[0064] In one embodiment, the parameters of the physical side link transmission also include a remaining packet delay budget.
[0065] Any resource in the first resource set is no earlier than the sum of the first time and the second time, and no later than the sum of the first time and the third time.
[0066] The third time satisfies at least one of the following:
[0067] The number of consecutive time slots is less than or equal to the difference between the third time and the second time plus one;
[0068] The number of consecutive time slots is less than or equal to the difference between the third time and a third set value plus one, and the third set value is determined according to the subcarrier spacing configuration of the side link bandwidth portion;
[0069] The number of consecutive time slots is less than or equal to the third time.
[0070] In one embodiment, the method includes:
[0071] At least one target resource is selected from the third resource set or a subset of the third resource set; and side link information or a physical side link channel is sent through all or part of the at least one target resource.
[0072] In one embodiment, any time-frequency resource in the determined second resource set is a time-frequency resource with continuous logical time slots and continuous physical time slots.
[0073] In this embodiment, by determining that any time-frequency resource in the second resource set is logically continuous in time slots, it is ensured that any time-frequency resource belongs to a resource pool, and side link communication can be performed. By determining that any time-frequency resource in the second resource set is physically continuous in time slots, the time-frequency resources are continuous in the time domain. When the frequency domain falls into the same group of continuous multiple channels, on this basis, a terminal does not need to go through the channel access process to compete for the channel before the transmission of each time slot on the selected time-frequency resource including multiple time slots. After a terminal successfully competes for the channel through the channel access process before a time-frequency resource transmission, for each time slot included in the time-frequency resource transmission, the terminal can directly transmit on the subsequent time slots included in the time-frequency resource transmission without competing for the channel. Compared with the transmission in the previous time slot of the time-frequency resource, the transmission on each subsequent time slot can transmit repeated transmissions of the same transmission block or different transmission blocks, thereby increasing the chance of channel access. The following is an illustrative description of the resource determination method through some embodiments.
[0074] Example 1
[0075] In this embodiment, the resource determination method can be applied to the first terminal, including: the upper layer of the first terminal requests the first terminal to determine a resource subset. In order to trigger this process, the upper layer provides one or more parameters for PSCCH / PSSCH transmission in a time slot n; determining a second resource set, the determined second resource set is a subset of the first resource set, the first resource set includes at least one time-frequency resource that is continuous in a time slot (slot) in a resource pool within the time interval [n+T1, n+T2], and the determined second resource set includes time-frequency resources that are continuous in the slots in the first resource set; the physical layer of the first terminal excludes one or more resources in the second resource set, and the remaining resources are the third resource set; the physical layer of the first terminal reports the third resource set to the upper layer. Among them, a resource pool can be used for PSSCH transmission, and a resource pool includes several frequency domain units in the frequency domain and several slots in the time domain.
[0076] In one example, the higher layer includes at least one of the following: a medium access control (MAC) layer and a radio resource control (RRC) layer.
[0077] In one example, a slot is equivalent to a physical slot. A slot in a resource pool is equivalent to a logical slot.
[0078] In one example, at least one time-frequency resource with continuous slots in a resource pool may also be referred to as at least one time-frequency resource with continuous logical slots, or at least one time-frequency resource with continuous logical slots in a resource pool.
[0079] In one example, the second resource set includes time-frequency resources whose slots are continuous in the first resource set, which can also be called the second resource set including time-frequency resources whose physical slots are continuous in the first resource set.
[0080] In one example, two time-frequency resources in the first resource set may overlap in the time domain.
[0081] In one example, two time-frequency resources in the second resource set may overlap in the time domain.
[0082] In one example, two time-frequency resources in the third resource set may overlap in the time domain.
[0083] In one example, the time interval [n+T1, n+T2] includes time slots T2-T1+1, namely, time slots n+T1, n+T1+1, ...., n+T2. Time slots n+T1, n+T1+1, ...., n+T2 can also be called physical time slots n+T1, n+T1+1, ...., n+T2. These time slots T2-T1+1 include several time slots belonging to a resource pool, that is, several logical time slots.
[0084] Figure 2 is a schematic diagram of time-frequency resources within a resource pool according to an embodiment. As shown in Figure 2 , the time slot [n+T1, n+T2] includes 12 physical slots, of which 8 are logical slots, i.e., 8 slots belonging to one resource pool.
[0085] In one example, the first resource set includes at least one time-frequency resource within the time interval [n+T1, n+T2], including consecutive slots within a resource pool, that is, including at least one time-frequency resource with consecutive logical slots. As shown in Figure 2, the first resource set includes eight time-frequency resources within the time interval [n+T1, n+T2], which can also be called eight candidate resources or eight candidate multi-slot resources. Each of these eight time-frequency resources includes N = 4 consecutive slots within a resource pool in the time domain, that is, includes N = 4 consecutive logical slots. The time-frequency resource labeled Resource 1 includes N = 4 consecutive slots in the time domain within a resource pool, which are consecutively numbered slots {x, x+1, x+2, x+3} within the resource pool, namely, logical slots {x, x+1, x+2, x+3}. The corresponding slot numbers (i.e., physical slot numbers) for these logical slots {x, x+1, x+2, x+3} are {n+T1, n+T1+1, n+T1+2, n+T1+3}. The time-frequency resource labeled Resource 5 includes N = 4 logical slots {y, y+1, y+2, y+3} in the time domain. The corresponding slot numbers (i.e., physical slot numbers) for these logical slots {y, y+1, y+2, y+3} are {n+T1+5, n+T1+6, n+T1+8, n+T1+9}. In the figure, y+1 = x+5.
[0086] In Figure 2 , the first resource set includes at least one time-frequency resource within the time interval [n+T1, n+T2], including slots contiguous within a resource pool, namely, resources 1 through 8. The slots included in any of resources 1 through 8 are contiguous within a resource pool, but the slots included in any resource may be discontinuous within the entire slot range (i.e., within the physical slot range).
[0087] The second resource set includes all time-frequency resources in the first resource set whose physical slots are continuous. In the figure, the second resource set includes resources 1 through 4. The slots included in any of resources 1 through 4 are continuous not only within a resource pool but also across all slots (i.e., within the physical slot range). Resources 5 through 8 do not belong to the second resource set. For each of resources 5 through 8, the logical slot numbers are continuous, but the physical slot numbers are not.
[0088] In one example, in addition to determining the second resource set, the first terminal also determines the first resource set. In the special example shown in FIG2 , the first terminal determines that the first resource set includes resources 1 to 8 .
[0089] In one example, the physical layer of the first terminal excludes one or more resources in the second resource set, and the remaining resources are the third resource set.
[0090] In an example, a higher layer of the first terminal requests the first terminal to determine a resource subset, and the third resource set is the resource set determined by the first terminal.
[0091] In one example, the physical layer of the first terminal reports the third resource set to the higher layer, that is, reports a resource subset.
[0092] In one example, a higher layer of the first terminal selects at least one resource from the third resource set for sending the sidelink information.
[0093] In an example, a higher layer of the first terminal selects at least one resource from the third resource set for sending sidelink information, where the sidelink information includes PSCCH / PSSCH transmission.
[0094] In one example, PSCCH / PSSCH transmission includes at least one of the following: PSCCH transmission; PSSCH transmission; PSCCH transmission and PSSCH transmission.
[0095] Example 2
[0096] In one example, the first terminal determines a second resource set, and the determined second resource set is a subset of the first resource set, wherein the first resource set includes at least one time-frequency resource whose slots are continuous within a resource pool within the time interval [n+T1, n+T2], and the determined second resource set includes time-frequency resources whose slots are continuous within the first resource set. The first resource set includes at least one time-frequency resource whose slots are continuous within a resource pool within the time interval [n+T1, n+T2], representing any time-frequency resource of the first resource set, and the corresponding slot is continuous within a resource pool, but is not necessarily continuous within the range of slot [n+T1, n+T2]. In other words, these slots are continuous logical slots, but not necessarily continuous physical slots.
[0097] The determined second resource set includes time-frequency resources with continuous slots in the first resource set, and any time-frequency resource in the second resource set corresponds to a continuous slot within the slot range [n+T1, n+T2]. In other words, these slots are continuous physical slots.
[0098] In one example, the first terminal determines the second resource set, including: the second resource set is defined as time-frequency resources with continuous physical slots in the first resource set.
[0099] Example 3
[0100] In one example, the first terminal determines a second resource set, and the determined second resource set is a subset of the first resource set, wherein the first resource set includes at least one time-frequency resource whose slots are continuous within a resource pool within the time interval [n+T1, n+T2], and the determined second resource set includes time-frequency resources whose slots are continuous within the first resource set. The first resource set includes at least one time-frequency resource whose slots are continuous within a resource pool within the time interval [n+T1, n+T2], representing any time-frequency resource of the first resource set, and the corresponding slot is continuous within a resource pool, but is not necessarily continuous within the range of slot [n+T1, n+T2]. In other words, these slots are continuous logical slots, but not necessarily continuous physical slots.
[0101] The determined second resource set includes time-frequency resources with continuous slots in the first resource set, and any time-frequency resource in the second resource set corresponds to a continuous slot within the slot range [n+T1, n+T2]. In other words, these slots are continuous physical slots.
[0102] In one example, the first terminal determines the second resource set, including: excluding time-frequency resources with discontinuous physical slots in the first resource set.
[0103] Example 4
[0104] In Example 1, a candidate multi-slot resource includes at least one of the following in the frequency domain:
[0105] Contains L in a resource pool subCH consecutive sub-channels (Sub-Channel);
[0106] Contains L RBset consecutive RB sets, and the candidate multi-slot resource includes L in each RB set. subCH consecutive sub-channels.
[0107] In one example, the candidate multi-slot resource may also be referred to as a multi-slot candidate resource.
[0108] For a candidate Multi-Slot Resource, the time domain includes N consecutive slots in a resource pool within the time interval [n+T1, n+T2]. The first slot of the N consecutive slots is marked as slot slot A slot belonging to a resource pool, slot For a group A slot in Indicates the set of time slots belonging to the edge link resource pool. The kth slot in the N consecutive slots in a resource pool within the above [n+T1,n+T2]slot interval is marked as k=0,1,...N-1.
[0109] In one example, the above L subCH Is a positive integer.
[0110] In one example, the above L RBset Is a positive integer.
[0111] In one example, different candidate Multi-Slot Resources may overlap in the time domain.
[0112] In one example, within a resource pool within the time interval [n+T1, n+T2], a resource set consisting of multi-slot resources that meet the following characteristics is marked as the first resource set:
[0113] In the frequency domain, it includes at least one of the following: L in a resource pool subCH consecutive sub-channels; including L RBset consecutive RB sets, and the Multi-Slot Resource contains L in each RB set. subCH consecutive sub-channels.
[0114] In the time domain, it includes N consecutive slots within a resource pool within the time interval [n+T1,n+T2].
[0115] In one example, the higher layer provides one or more PSSCH / PSCCH transmission parameters including a slot number N, where the slot number N represents the number of consecutive slots within a resource pool included in a candidate Multi-Slot Resource.
[0116] In one example, the first terminal determines a second resource set, and the determined second resource set is a subset of the first resource set. The first resource set includes at least one time-frequency resource with continuous slots within a resource pool within a time interval [n+T1, n+T2]. The determined second resource set includes slot-continuous time-frequency resources in the first resource set.
[0117] In one example, the first terminal determines the second resource set, including: defining the second resource set as time-frequency resources with continuous physical slots in the first resource set.
[0118] In one example, the first terminal determines the second resource set, including: excluding time-frequency resources with discontinuous physical slots in the first resource set.
[0119] FIG3 is a schematic diagram of another time-frequency resource in a resource pool provided by an embodiment. As shown in FIG3, a candidate Multi-Slot Resource includes N slots, N = 4. For the kth slot in N, the slot number is marked as k=0,1,...N-1. For the kth slot in N, the slot number in a resource pool is y+k, and y+k is For the candidate Multi-Slot Resource in the figure, y=x+4, the time domain slot of the candidate Multi-Slot Resource includes the {y, y+1, y+2, y+3}th slot in a resource pool, that is, it includes the {x+4, x+5, x+6, x+7}th slot in a resource pool. The slot number in a resource pool is called the logical slot number. The Multi-Slot Resource in the figure includes the slot with the logical slot number {x+4, x+5, x+6, x+7}. The conventional slot number is called the physical slot number. In the figure, [n+T1, n+T2] includes 12 physical slots 11 to 22. Among them, the Multi-Slot Resource in the figure includes the physical slot number slot.
[0120] In one example, the candidate multi-slot resource may also be referred to as a multi-slot candidate resource.
[0121] In Example 2, the sensing window or monitoring window is defined as The unit of T0 is slot. is determined by the SCS configuration of a SL BWP SL A value of . A UE monitors all or part of the slots belonging to a sidelink resource pool within the sensing window. And, a UE does not monitor the slots in which the UE's transmission occurs within the Sidelink Resource Pool. A UE performs PSCCH decoded decoding and RSRP measurement on the slots it monitors above. In a special case, and μ SL The relationship is shown in Table 1.
[0122] In Example 3, the parameter Th(p i ,p j ) is set as the i-th RSRP threshold value in sl-Thres-RSRP-List, and i=p i +(p j -1)*8. Among them, sl-Thres-RSRP-List is an RSRP threshold list. This parameter provides each (p i ,p j )’s RSRP threshold, p i is the value of the priority field in the received SCI format 1-A, pj Is a transmission priority for selecting resources. Send priority p j Can also be marked as prio TX .
[0123] In Example 4, the set S A Initialized to the second resource set in Example 1 above.
[0124] In Example 5, a UE selects from the set S of Example 4 above. A In the example, exclude candidate muti-slot resources that meet the target conditions. The target conditions include the following:
[0125] For any period value allowed by the high-level parameter sl-ResourceReservePeriodList, slot The 'Resource reservation period' field of the previously assumed SCI format 1-A is set to the period value and indicates all sub channels on a resource pool;
[0126] For any periodicity value allowed by the higher layer parameter such as sl-ResourceReservePeriodList, condition c in Example 6 is satisfied.
[0127] In this example, if set S A The number of remaining candidate multi-slot resources is less than X·M total , then set S A Initialized to the resource set corresponding to all candidate multi-slot Resources in Example 4 above, that is, the set S in Example 4 A , which is the second resource set in Example 4.
[0128] In Example 6, for set S A If a Multi-Slot candidate resource x in is satisfied with the target conditions, the resource is excluded. The target conditions include at least:
[0129] a.UE is in a slot belonging to the resource pool Receive an SCI format 1-A, the indication information of SCI format 1-A includes: "Resource reservation period" field (resource reservation period indication field, which may or may not exist) for indicating P rsvp_RX The value of "Priority" field (priority indication field), indicating prio RX The value of
[0130] b. For RSRP obtained through measurement, it is higher than the threshold value Th(prio RX ,prio TX );
[0131] c. According to slot The received SCI format determines the slot and resource block set that overlaps with the target resource set, or, based on the assumption that the slot The received SCI format determines the slot and resource block set that overlaps with the target resource set. The target resource set includes at least one of the following:
[0132] Multi-Slot candidate resource x;
[0133] The frequency domain resources that are the same as the Multi-Slot candidate resource x, and the slot number is increased by the slot number of the Multi-Slot candidate resource x The slot number here is the slot number in a resource pool, that is, the logical slot number, and j is a non-negative integer with a certain value range.
[0134] above is a positive integer. In a special case, P in ms rsvp_TX The value is converted to a logical slot number.
[0135] The above P′ rsvp_RX P in ms rsvp_RX The value is converted to the number of logical slots.
[0136] In one example, in Example 6 above, before resource exclusion, set S A , which is the set S after executing the resource exclusion in Example 5 above A , or execute set S in Example 5 A Initialized set S A, or execute the resource exclusion in Example 5 above and execute the set S in Example 5 A Initialized set S A .
[0137] In Example 7, if set S A The remaining candidate Multi-Slot resources in meet the conditions, then for each priority value (p i ,p j ) corresponds to Th(p i ,p j ) increases by 3dB, and continues with Example 7. The conditions here include at least: set S A The remaining candidate Multi-Slot resources in are less than X·M total .
[0138] In one example, the set S in Example 7 A To execute set S after Example 4, Example 5, and / or Example 6 A .
[0139] In one example, M total The number of Multi-Slot resources included in the first resource set, or M total The number of Multi-Slot resources included in the second resource set.
[0140] In one example, X is a percentage value, or X is a ratio value.
[0141] In one example, after executing examples 4 to 6, set S A , and / or set S after executing at least one of Examples 4 to 6 A , is marked as the third resource collection.
[0142] Example 5
[0143] In Example 1, a candidate Multi-Slot Resource includes at least one of the following in the frequency domain:
[0144] Contains L in a resource pool subCH consecutive sub-channels;
[0145] Contains L RBset consecutive RB sets, each RB set contains L subCH consecutive sub-channels.
[0146] For a candidate Multi-Slot Resource, the time domain includes N consecutive slots in a resource pool within the time interval [n+T1, n+T2]. The first slot of the N consecutive slots is marked as slot slot A slot belonging to a resource pool, slot For a group A slot in Indicates the set of time slots belonging to the edge link resource pool. The kth slot in the N consecutive slots in a resource pool within the above [n+T1,n+T2]slot interval is marked as k=0,1,...N-1.
[0147] In one example, different candidate Multi-Slot Resources may overlap in the time domain.
[0148] In one example, within a resource pool within the time interval [n+T1, n+T2], a resource set consisting of multi-slot resources that meet the following characteristics is marked as the first resource set:
[0149] In the frequency domain, it includes at least one of the following: L in a resource pool subCH consecutive sub-channels;
[0150] Contains L RBset consecutive RB sets, each RB set contains L subCH consecutive sub-channels.
[0151] In the time domain, it includes N consecutive slots in a resource pool within the time interval [n+T1,n+T2].
[0152] In an example, the higher layer provides one or more PSSCH / PSCCH transmission parameters including a slot number N, where the slot number N represents the number of consecutive slots in a resource pool included in a candidate Multi-Slot Resource.
[0153] As shown in Figure 3, a candidate Multi-Slot Resource includes N slots, N = 4. For the kth slot in N, the slot number is marked as k=0,1,...N-1. For the kth slot in N, the slot number in a resource pool is y+k, and y+k is For the candidate Multi-Slot Resource in the figure, y=x+4, the time domain slot of the candidate Multi-Slot Resource includes the {y, y+1, y+2, y+3}th slot in a resource pool, that is, it includes the {x+4, x+5, x+6, x+7}th slot in a resource pool. The slot number in a resource pool is called the logical slot number. The Multi-Slot Resource in the figure includes the slot with the logical slot number {x+4, x+5, x+6, x+7}. The conventional slot number is called the physical slot number. In the figure, [n+T1, n+T2] includes 12 physical slots 11 to 22. Among them, the Multi-Slot Resource in the figure includes the physical slot number slot.
[0154] In Example 2, the sensing window is defined as The unit of T0 is slot. is determined by the SCS configuration of a SL BWP SL A value of . A UE monitors all or part of the slots belonging to a sidelink resource pool within the sensing window. And, a UE does not monitor the slots in which the UE's transmission occurs within a sidelink resource pool. A UE performs PSCCH decoded decoding and RSRP measurement on the slots it monitors above. In a special case, and μ SL The relationship is shown in Table 1.
[0155] In one example, the first terminal determines a second resource set, where the determined second resource set is a subset of the first resource set, the first resource set includes at least one time-frequency resource with continuous slots in a resource pool within a time interval [n+T1, n+T2], and the determined second resource set includes time-frequency resources with continuous slots in the first resource set.
[0156] In one example, the first terminal determines the second resource set, including: defining the second resource set as time-frequency resources with continuous physical slots in the first resource set.
[0157] In one example, the first terminal determines the second resource set, including: excluding time-frequency resources with discontinuous physical slots in the first resource set.
[0158] In Example 3, the parameter Th(p i ,p j ) is set as the i-th RSRP threshold value in sl-Thres-RSRP-List, and i=p i +(p j -1)*8. Among them, sl-Thres-RSRP-List is an RSRP threshold list. This parameter provides each (p i ,p j )’s RSRP threshold, p i is the value of the priority field in the received SCI format 1-A, p j Is a transmission priority for selecting resources. Send priority p j Can also be marked as prio TX .
[0159] In Example 4, the set S A Initialized to the second resource set in Example 2 above.
[0160] In Example 5, a UE selects from the set S of Example 4 above. A In the example, exclude candidate muti-slot resources that meet the target conditions. The target conditions include the following:
[0161] For any period value allowed by the high-level parameter sl-ResourceReservePeriodList, slot The 'Resource reservation period' field of the previous assumed SCI format 1-A is set to the period value and indicates all subchannels on a resource pool;
[0162] For any period value allowed by the higher layer parameter (sl-ResourceReservePeriodList), condition c in Example 6 is satisfied.
[0163] In this example, if set S A The number of remaining candidate multi-slot resources is less than X·M total , then set S A Initialized to the resource set corresponding to all candidate multi-slot Resources in Example 4 above, that is, the set S in Example 4A , which is the second resource set in Example 4.
[0164] In Example 6, for set S A If a Multi-Slot candidate resource x in is satisfied with the target conditions, the resource is excluded. The target conditions include at least:
[0165] a.UE is in a slot belonging to the resource pool Receive an SCI format 1-A, the indication information of SCI format 1-A includes: "Resource reservation period" field (resource reservation period indication field, which may or may not exist) for indicating P rsvp_RX The value of "Priority" field (priority indication field), indicating prio RX The value of
[0166] b. For RSRP obtained through measurement, it is higher than the threshold value Th(prio RX ,prio TX );
[0167] c. According to slot The received SCI format determines the slot and resource block set that overlaps with the target resource set, or, based on the assumption that the slot The received SCI format determines the slot and resource block set that overlaps with the target resource set. The target resource set includes at least one of the following:
[0168] Multi-Slot candidate resource x;
[0169] The frequency domain resources that are the same as the Multi-Slot candidate resource x, and the slot number is increased by the slot number of the Multi-Slot candidate resource x The slot number here is the slot number in a resource pool, that is, the logical slot number, and j is a non-negative integer with a certain value range.
[0170] above is a positive integer. In a special case, P in ms rsvp_TX The value is converted to the number of logical slots.
[0171] The above P′ rsvp_RX P in ms rsvp_RXThe value is converted to a number of logical slots.
[0172] In one example, in Example 6 above, before resource exclusion, set S A , which is the set S after executing the resource exclusion in Example 5 above A , or execute set S in Example 5 A Initialized set S A , or execute the resource exclusion in Example 5 above and execute the set S in Example 5 A Initialized set S A .
[0173] In Example 7, if set S A The remaining candidate Multi-Slot resources in meet the conditions, then for each priority value (p i ,p j ) corresponds to Th(p i ,p j ) increases by 3dB, and continues with Example 7. The conditions here include at least: set S A The remaining candidate Multi-Slot resources in are less than X·M total .
[0174] In one example, the set S in Example 7 A To execute set S after Example 4, Example 5, and / or Example 6 A .
[0175] In one example, M total The number of Multi-Slot resources included in the first resource set, or M total The number of Multi-Slot resources included in the second resource set.
[0176] In one example, X is a percentage value, or X is a ratio value.
[0177] In one example, after executing examples 4 to 6, set S A , and / or set S after executing at least one of Examples 4 to 6 A , is marked as the third resource collection.
[0178] Example 6
[0179] In Example 1, a candidate Multi-Slot Resource includes at least one of the following in the frequency domain:
[0180] Contains L in a resource pool subCHconsecutive sub-channels;
[0181] Contains L RBset consecutive RB sets, each RB set contains L subCH consecutive sub-channels.
[0182] For a candidate Multi-Slot Resource, the time domain includes N consecutive slots in a resource pool within the time interval [n+T1, n+T2]. The first slot of the N consecutive slots is marked as slot slot A slot belonging to a resource pool, slot For a group A slot in Indicates the set of time slots belonging to the edge link resource pool. The kth slot in the N consecutive slots in a resource pool within the above [n+T1,n+T2]slot interval is marked as k=0,1,...N-1.
[0183] In one example, different candidate Multi-Slot Resources may overlap in the time domain.
[0184] In one example, within a resource pool within the time interval [n+T1, n+T2], a resource set consisting of multi-slot resources that meet the following characteristics is marked as the first resource set:
[0185] In the frequency domain, it includes at least one of the following: L in a resource pool subCH consecutive sub-channels; including L RBset consecutive RB sets, each RB set contains L subCH consecutive sub-channels.
[0186] In the time domain, it includes N consecutive slots in a resource pool within the time interval [n+T1,n+T2].
[0187] In an example, the higher layer provides one or more PSSCH / PSCCH transmission parameters including a slot number N, where the slot number N represents the number of consecutive slots in a resource pool included in a candidate Multi-Slot Resource.
[0188] As shown in Figure 3, a candidate Multi-Slot Resource includes N slots, N = 4. For the kth slot in N, the slot number is marked as k=0,1,...N-1. For the kth slot in N, the slot number in a resource pool is y+k, and y+k is The subscript of . For the candidate Multi-Slot Resource in the figure, y=x+4, the time domain slot of the candidate Multi-Slot Resource includes the {y, y+1, y+2, y+3}th slot in a resource pool, that is, it includes the {x+4, x+5, x+6, x+7}th slot in a resource pool. The slot number in a resource pool is called the logical slot number. The Multi-Slot Resource in the figure includes the slot with the logical slot number {x+4, x+5, x+6, x+7}. The conventional slot number is called the physical slot number. In the figure, [n+T1, n+T2] includes 12 physical slots 11 to 22. Among them, the Multi-Slot Resource in the figure includes the physical slot number slot.
[0189] In Example 2, the sensing window is defined as The unit of T0 is slot. is determined by the SCS configuration of a SL BWP SL A value of . A UE monitors all or part of the slots belonging to a sidelink resource pool within the sensing window. And, a UE does not monitor the slots in which the UE's transmission occurs within a sidelink resource pool. A UE performs PSCCH decoded decoding and RSRP measurement on the slots it monitors above. In a special case, and μ SL The relationship is shown in Table 1.
[0190] In Example 3, the parameter Th(p i ,p j ) is set as the i-th RSRP threshold value in sl-Thres-RSRP-List, and i=p i +(p j-1)*8. Among them, sl-Thres-RSRP-List is an RSRP threshold list. This parameter provides each (p i ,p j )’s RSRP threshold, p i is the value of the priority field in the received SCI format 1-A, p j Is a transmission priority for selecting resources. Send priority p j Can also be marked as prio TX .
[0191] In one example, the first terminal determines a second resource set, where the determined second resource set is a subset of the first resource set, the first resource set includes at least one time-frequency resource with continuous slots in a resource pool within a time interval [n+T1, n+T2], and the determined second resource set includes time-frequency resources with continuous slots in the first resource set.
[0192] In one example, the first terminal determines the second resource set, including: defining the second resource set as time-frequency resources with continuous physical slots in the first resource set.
[0193] In one example, the first terminal determines the second resource set, including: excluding time-frequency resources with discontinuous physical slots in the first resource set.
[0194] In Example 4, the set S A Initialized to the second resource set in Example 3 above.
[0195] In Example 5, a UE selects from the set S of Example 4 above. A In the example, exclude candidate muti-slot resources that meet the target conditions. The target conditions include the following:
[0196] For any period value allowed by the high-level parameter sl-ResourceReservePeriodList, slot The 'Resource reservation period' field of the previous assumed SCI format 1-A is set to the period value and indicates all subchannels on a resource pool;
[0197] For any period value allowed by the higher layer parameter (sl-ResourceReservePeriodList), condition c in Example 6 is satisfied.
[0198] In this example, if set S AThe number of remaining candidate multi-slot resources is less than X·M total , then set S A Initialized to the resource set corresponding to all candidate multi-slot Resources in Example 4 above, that is, the set S in Example 4 A , which is the second resource set in Example 4.
[0199] In Example 6, for set S A If a Multi-Slot candidate resource x in is satisfied with the target conditions, the resource is excluded. The target conditions include at least:
[0200] a.UE is in a slot belonging to the resource pool Receive an SCI format 1-A, the indication information of SCI format 1-A includes: "Resource reservation period" field (resource reservation period indication field, which may or may not exist) for indicating P rsvp_TX The value of "Priority" field (priority indication field), indicating prio RX The value of
[0201] b. For RSRP obtained through measurement, it is higher than the threshold value Th(prio RX ,prio TX );
[0202] c. According to slot The received SCI format determines the slot and resource block set that overlaps with the target resource set, or, based on the assumption that the slot The received SCI format determines the slot and resource block set that overlaps with the target resource set. The target resource set includes at least one of the following:
[0203] Multi-Slot candidate resource x;
[0204] The frequency domain resources that are the same as the Multi-Slot candidate resource x, and the slot number is increased by the slot number of the Multi-Slot candidate resource x The slot number here is the slot number in a resource pool, that is, the logical slot number, and j is a non-negative integer with a certain value range.
[0205] above is a positive integer. In a special case, P in ms rsvp_TX The value is converted to the number of logical slots.
[0206] The above P′ rsvp_RX P in ms rsvp_RX The value is converted to the number of logical slots.
[0207] In one example, in Example 6 above, before resource exclusion, set S A , which is the set S after executing the resource exclusion in Example 5 above A , or execute set S in Example 5 A Initialized set S A , or execute the resource exclusion in Example 5 above and execute the set S in Example 5 A Initialized set S A .
[0208] In Example 7, if set S A The remaining candidate Multi-Slot resources in meet the conditions, then for each priority value (p i ,p j ) corresponds to Th(p i ,p j ) increases by 3dB, and continues with Example 7. The conditions here include at least: set S A The remaining candidate Multi-Slot resources in are less than X·M total .
[0209] In one example, the set S in Example 7 A For set S after executing Example 4, and / or executing Example 5, and / or executing Example 6 A .
[0210] In one example, M total The number of Multi-Slot resources included in the first resource set, or M total The number of Multi-Slot resources included in the second resource set.
[0211] In one example, X is a percentage value, or X is a ratio value.
[0212] In one example, after executing examples 4 to 6, set S A , and / or set S after executing at least one of Examples 4 to 6 A , is marked as the third resource collection.
[0213] Example 7
[0214] In Example 1, a candidate Multi-Slot Resource includes at least one of the following in the frequency domain:
[0215] Contains L in a resource pool subCH consecutive sub-channels (Sub-Channel);
[0216] Contains L RBset consecutive RB sets, each RB set contains L subCH consecutive sub-channels.
[0217] For a candidate Multi-Slot Resource, the time domain includes N consecutive slots in a resource pool within the time interval [n+T1, n+T2]. The first slot of the N consecutive slots is marked as slot slot A slot belonging to a resource pool, slot For a group A slot in Indicates the set of time slots belonging to the edge link resource pool. The kth slot in the N consecutive slots in a resource pool within the above [n+T1,n+T2]slot interval is marked as k=0,1,...N-1.
[0218] In one example, different candidate Multi-Slot Resources may overlap in the time domain.
[0219] In one example, within a resource pool within the time interval [n+T1, n+T2], a resource set consisting of multi-slot resources that meet the following characteristics is marked as the first resource set:
[0220] In the frequency domain, it includes at least one of the following: L in a resource pool subCH consecutive sub-channels; including L RBset consecutive RB sets, each RB set contains L subCH consecutive sub-channels.
[0221] In the time domain, it includes N consecutive slots within a resource pool within the time interval [n+T1,n+T2].
[0222] In an example, the higher layer provides one or more PSSCH / PSCCH transmission parameters including a slot number N, where the slot number N represents the number of consecutive slots in a resource pool included in a candidate Multi-Slot Resource.
[0223] As shown in Figure 3, a candidate Multi-Slot Resource includes N slots, N = 4. For the kth slot in N, the slot number is marked as k=0,1,...N-1. For the kth slot in N, the slot number in a resource pool is y+k, and y+k is For the candidate Multi-Slot Resource in the figure, y=x+4, the time domain slot of the candidate Multi-Slot Resource includes the {y, y+1, y+2, y+3}th slot in a resource pool, that is, it includes the {x+4, x+5, x+6, x+7}th slot in a resource pool. The slot number in a resource pool is called the logical slot number. The Multi-Slot Resource in the figure includes the slot with the logical slot number {x+4, x+5, x+6, x+7}. The conventional slot number is called the physical slot number. In the figure, [n+T1, n+T2] includes 12 physical slots 11 to 22. Among them, the Multi-Slot Resource in the figure includes the physical slot number slot.
[0224] In Example 2, the sensing window is defined as The unit of T0 is slot. is determined by the SCS configuration of a SL BWP SL A value of . A UE monitors all or part of the slots belonging to a sidelink resource pool within the sensing window. And, a UE does not monitor the slots in which the UE's transmission occurs within a sidelink resource pool. A UE performs PSCCH decoded decoding and RSRP measurement on the slots it monitors above. In a special case, and μSL The relationship is shown in Table 1.
[0225] In Example 3, the parameter Th(p i ,p j ) is set as the i-th RSRP threshold value in sl-Thres-RSRP-List, and i=p i +(p j -1)*8. Among them, sl-Thres-RSRP-List is an RSRP threshold list. This parameter provides each (p i ,p j )’s RSRP threshold, p i is the value of the priority field in the received SCI format 1-A, p j Is a transmission priority for selecting resources. Send priority p j Can also be marked as prio TX .
[0226] In Example 4, the set S A Initialized to the first resource set in Example 1 above.
[0227] In one example, the first terminal determines a second resource set, where the determined second resource set is a subset of the first resource set, the first resource set includes at least one time-frequency resource with continuous slots in a resource pool within a time interval [n+T1, n+T2], and the determined second resource set includes time-frequency resources with continuous slots in the first resource set.
[0228] In one example, the first terminal determines the second resource set, including: excluding time-frequency resources whose physical slots are discontinuous in the first resource set. That is, excluding the set S A The physical slots in the S are discontinuous time-frequency resources. A The remaining resources after internal resources are excluded are still marked as S A .
[0229] In Example 5, a UE selects from the set S of Example 4 above. A In the example, exclude candidate muti-slot resources that meet the target conditions. The target conditions include the following:
[0230] For any period value allowed by the high-level parameter sl-ResourceReservePeriodList, slot The 'Resource reservation period' field of the previously assumed SCI format 1-A is set to the period value and indicates all sub channels on a resource pool;
[0231] For any periodicity value allowed by the higher layer parameter such as sl-ResourceReservePeriodList, condition c in Example 6 is satisfied.
[0232] In this example, if set S A The number of remaining candidate multi-slot resources is less than X·M total , then set S A Initialized to the resource set corresponding to all candidate multi-slot Resources in Example 4 above, that is, the set S in Example 4 A , which is the second resource set in Example 4.
[0233] In Example 6, for set S A If a Multi-Slot candidate resource x in is satisfied with the target conditions, the resource is excluded. The target conditions include at least:
[0234] a.UE is in a slot belonging to the resource pool Receive an SCI format 1-A, the indication information of SCI format 1-A includes: "Resource reservation period" field (resource reservation period indication field, which may or may not exist) for indicating P rsvp_RX The value of "Priority" field (priority indication field), indicating prio RX The value of
[0235] b. For RSRP obtained through measurement, it is higher than the threshold value Th(prio RX ,prio TX );
[0236] c. According to slot The received SCI format determines the slot and resource block set that overlaps with the target resource set, or, based on the assumption that the slot The received SCI format determines the slot and resource block set that overlaps with the target resource set. The target resource set includes at least one of the following:
[0237] Multi-Slot candidate resource x;
[0238] The frequency domain resources that are the same as the Multi-Slot candidate resource x, and the slot number is increased by the slot number of the Multi-Slot candidate resource x The slot number here is the slot number in a resource pool, that is, the logical slot number, and j is a non-negative integer with a certain value range.
[0239] above is a positive integer. In a special case, P in ms rsvp_TX The value is converted to a logical slot number.
[0240] The above P′ rsvp_RX P in ms rsvp_RX The value is converted to the number of logical slots.
[0241] In one example, in Example 6 above, before resource exclusion, set S A , which is the set S after executing the resource exclusion in Example 5 above A , or execute set S in Example 5 A Initialized set S A , or execute the resource exclusion in Example 5 above and execute the set S in Example 5 A Initialized set S A .
[0242] In Example 7, if set S A The remaining candidate Multi-Slot resources in meet the conditions, then for each priority value (p i ,p j ) corresponds to Th(p i ,p j ) increases by 3dB, and continues with Example 7. The conditions here include at least: set S A The remaining candidate Multi-Slot resources in are less than X·M total .
[0243] In one example, the set S in Example 7 AFor set S after executing Example 4, and / or executing Example 5, and / or executing Example 6 A .
[0244] In one example, M total The number of Multi-Slot resources included in the first resource set, or M total The number of Multi-Slot resources included in the second resource set.
[0245] In one example, X is a percentage value, or X is a ratio value.
[0246] In one example, after executing examples 4 to 6, set S A , and / or set S after executing at least one of Examples 4 to 6 A , is marked as the third resource collection.
[0247] Example 8
[0248] In Example 1, a candidate Multi-Slot Resource includes at least one of the following in the frequency domain:
[0249] Contains L in a resource pool subCH consecutive sub-channels (Sub-Channel);
[0250] Contains L RBset consecutive RB sets, each RB set contains L subCH consecutive sub-channels.
[0251] For a candidate Multi-Slot Resource, the time domain includes N consecutive slots in a resource pool within the time interval [n+T1, n+T2]. The first slot of the N consecutive slots is marked as slot slot A slot belonging to a resource pool, slot For a group A slot in Indicates the set of time slots belonging to the edge link resource pool. The kth slot in the N consecutive slots in a resource pool within the above [n+T1,n+T2]slot interval is marked as k=0,1,...N-1.
[0252] In one example, different candidate Multi-Slot Resources may overlap in the time domain.
[0253] In one example, within a resource pool within the time interval [n+T1, n+T2], a resource set consisting of multi-slot resources that meet the following characteristics is marked as the first resource set:
[0254] In the frequency domain, it includes at least one of the following: L in a resource pool subCH consecutive sub-channels; including L RBset consecutive RB sets, each RB set contains L subCH consecutive sub-channels.
[0255] In the time domain, it includes N consecutive slots within a resource pool within the time interval [n+T1,n+T2].
[0256] In an example, the higher layer provides one or more PSSCH / PSCCH transmission parameters including a slot number N, where the slot number N represents the number of consecutive slots in a resource pool included in a candidate Multi-Slot Resource.
[0257] As shown in Figure 3, a candidate Multi-Slot Resource includes N slots, N = 4. For the kth slot in N, the slot number is marked as k=0,1,...N-1. For the kth slot in N, the slot number in a resource pool is y+k, and y+k is For the candidate Multi-Slot Resource in the figure, y=x+4, the time domain slot of the candidate Multi-Slot Resource includes the {y, y+1, y+2, y+3}th slot in a resource pool, that is, it includes the {x+4, x+5, x+6, x+7}th slot in a resource pool. The slot number in a resource pool is called the logical slot number. The Multi-Slot Resource in the figure includes the slot with the logical slot number {x+4, x+5, x+6, x+7}. The conventional slot number is called the physical slot number. [n+T1, n+T2] includes 12 physical slots 11 to 22. Among them, the Multi-Slot Resource in the figure includes the physical slot number slot.
[0258] In Example 2, the sensing window is defined as The unit of T0 is slot. is determined by the SCS configuration of a SL BWP SL A value of . A UE monitors all or part of the slots belonging to a sidelink resource pool within the sensing window. And, a UE does not monitor the slots in which the UE's transmission occurs within a sidelink resource pool. A UE performs PSCCH decoded decoding and RSRP measurement on the slots it monitors above. In a special case, and μ SL The relationship is shown in Table 1.
[0259] In Example 3, the parameter Th(p i ,p j ) is set as the i-th RSRP threshold value in sl-Thres-RSRP-List, and i=p i +(p j -1)*8. Among them, sl-Thres-RSRP-List is an RSRP threshold list. This parameter provides each (p i ,p j )’s RSRP threshold, p i is the value of the priority field in the received SCI format 1-A, p j Is a transmission priority for selecting resources. Send priority p j Can also be marked as prio TX .
[0260] In Example 4, the set S A Initialized to the first resource set in Example 1 above.
[0261] In an example 5, the first terminal determines a second resource set, and a UE selects a resource from the set S in the above example 4. A In the example, exclude candidate muti-slot resources that meet the target conditions. The target conditions include the following:
[0262] For any period value allowed by the high-level parameter sl-ResourceReservePeriodList, slot The 'Resource reservation period' field of the previous assumed SCI format 1-A is set to the period value and indicates all subchannels on a resource pool;
[0263] For any period value allowed by the higher layer parameter (sl-ResourceReservePeriodList), condition c in Example 6 is satisfied.
[0264] And, the first terminal excludes resources with discontinuous physical slots in the first resource set. That is, exclude the set S A Resources whose physical slots are not continuous.
[0265] In this example, if set S A The resource collection corresponding to all candidate multi-slot Resources in , that is, the collection S in Example 4 A , which is the first resource set in Example 4.
[0266] S after executing Example 5 A , marked as the second resource collection.
[0267] a.UE is in a slot belonging to the resource pool Receive an SCI format 1-A, the indication information of SCI format 1-A includes: "Resource reservation period" field (resource reservation period indication field, which may or may not exist) for indicating P rsvp_RX The value of "Priority" field (priority indication field), indicating prio RX The value of
[0268] b. For RSRP obtained through measurement, it is higher than the threshold value Th(prio RX ,prio TX );
[0269] c. According to slot The received SCI format determines the slot and resource block set that overlaps with the target resource set, or, based on the assumption that the slot The received SCI format determines the slot and resource block set that overlaps with the target resource set. The target resource set includes at least one of the following:
[0270] Multi-Slot candidate resource x;
[0271] The frequency domain resources that are the same as the Multi-Slot candidate resource x, and the slot number is increased by the slot number of the Multi-Slot candidate resource x The slot number here is the slot number in a resource pool, that is, the logical slot number, and j is a non-negative integer with a certain value range.
[0272] above is a positive integer. In a special case, P in ms rsvp_TX The value is converted to the number of logical slots.
[0273] The above P′ rsvp_RX P′ in ms rsvp_RX The value is converted to a number of logical slots.
[0274] In one example, in Example 6 above, before resource exclusion, set S A , which is the set S after executing the resource exclusion in Example 5 above A , or execute set S in Example 5 A Initialized set S A , or execute the resource exclusion in Example 5 above and execute the set S in Example 5 A Initialized set S A .
[0275] In Example 7, if set S A The remaining candidate Multi-Slot resources in meet the conditions, then for each priority value (p i ,p j ) corresponds to Th(p i ,p j ) increases by 3dB, and continues with Example 7. The conditions here include at least: set S A The remaining candidate Multi-Slot resources in are less than X·M total .
[0276] In one example, the set S in Example 7 A To execute set S after Example 6 A .
[0277] In one example, M total The number of Multi-Slot resources included in the first resource set, or M total The number of Multi-Slot resources included in the second resource set.
[0278] In one example, X is a percentage value, or X is a ratio value.
[0279] In one example, execute the set S after Example 6. A , is marked as the third resource collection.
[0280] Example 9
[0281] In Example 1, a candidate Multi-Slot Resource includes at least one of the following in the frequency domain:
[0282] Contains L in a resource pool subCH consecutive sub-channels;
[0283] Contains L RBset consecutive RB sets, each RB set contains L subCH consecutive sub-channels.
[0284] For a candidate Multi-Slot Resource, the time domain includes N consecutive slots in a resource pool within the time interval [n+T1, n+T2]. The first slot of the N consecutive slots is marked as slot slot A slot belonging to a resource pool, slot For a group A slot in Indicates the set of time slots belonging to the edge link resource pool. The kth slot in the N consecutive slots in a resource pool within the above [n+T1,n+T2]slot interval is marked as k=0,1,...N-1.
[0285] In one example, different candidate Multi-Slot Resources may overlap in the time domain.
[0286] In one example, within a resource pool within the time interval [n+T1, n+T2], a resource set consisting of multi-slot resources that meet the following characteristics is marked as the first resource set:
[0287] In the frequency domain, it includes at least one of the following: L in a resource pool subCH consecutive sub-channels;
[0288] Contains L RBset consecutive RB sets, each RB set contains L subCH consecutive sub-channels.
[0289] In the time domain, it includes N consecutive slots in a resource pool within the time interval [n+T1,n+T2].
[0290] In an example, the higher layer provides one or more PSSCH / PSCCH transmission parameters including a slot number N, where the slot number N represents the number of consecutive slots in a resource pool included in a candidate Multi-Slot Resource.
[0291] As shown in Figure 3, a candidate Multi-Slot Resource includes N slots, N = 4. For the kth slot in N, the slot number is marked as k=0,1,...N-1. For the kth slot in N, the slot number in a resource pool is y+k, and y+k is For the candidate Multi-Slot Resource in the figure, y=x+4, the time domain slot of the candidate Multi-Slot Resource includes the {y, y+1, y+2, y+3}th slot in a resource pool, that is, it includes the {x+4, x+5, x+6, x+7}th slot in a resource pool. The slot number in a resource pool is called the logical slot number. The Multi-Slot Resource in the figure includes the slot with the logical slot number {x+4, x+5, x+6, x+7}. The conventional slot number is called the physical slot number. In the figure, [n+T1, n+T2] includes 12 physical slots 11 to 22. Among them, the Multi-Slot Resource in the figure includes the physical slot number slot.
[0292] In Example 2, the sensing window is defined as The unit of T0 is slot. is determined by the SCS configuration of a SL BWP SLA value of . A UE monitors all or part of the slots belonging to a sidelink resource pool within the sensing window. And, a UE does not monitor the slots in which the UE's transmission occurs within a sidelink resource pool. A UE performs PSCCH decoded decoding and RSRP measurement on the slots it monitors above. In a special case, and μ SL The relationship is shown in Table 1.
[0293] In Example 3, Th(p i ,p j ) is set as the i-th RSRP threshold value in sl-Thres-RSRP-List, and i=p i +(p j -1)*8. Among them, sl-Thres-RSRP-List is an RSRP threshold list. This parameter provides each (p i ,p j )’s RSRP threshold, p i is the value of the priority field in the received SCI format 1-A, p j Is a transmission priority for selecting resources. Send priority p j Can also be marked as prio TX .
[0294] In Example 4, the set S A Initialized to the first resource set in Example 1 above.
[0295] In Example 5, a UE selects from the set S of Example 4 above. A In the example, exclude candidate muti-slot resources that meet the target conditions. The target conditions include the following:
[0296] For any period value allowed by the high-level parameter sl-ResourceReservePeriodList, slot The 'Resource reservation period' field of the previous assumed SCI format 1-A is set to the period value and indicates all subchannels on a resource pool;
[0297] For any period value allowed by the higher layer parameter (sl-ResourceReservePeriodList), condition c in Example 6 is satisfied.
[0298] In this example, if set S A The number of remaining candidate multi-slot resources is less than X·M total , then set S A It is initialized to the resource collection corresponding to the candidate multi-slot Resources in Example 4 above.
[0299] In Example 6, for set S A If a Multi-Slot candidate resource x in is satisfied with the target conditions, the resource is excluded. The target conditions include at least:
[0300] a.UE is in a slot belonging to the resource pool Receive an SCI format 1-A, the indication information of SCI format 1-A includes: "Resource reservation period" field (resource reservation period indication field, which may or may not exist) for indicating P rsvp_RX The value of "Priority" field (priority indication field), indicating prio RX The value of
[0301] b. For RSRP obtained through measurement, it is higher than the threshold value Th(prio RX ,prio TX );
[0302] c. According to slot The received SCI format determines the slot and resource block set that overlaps with the target resource set, or, based on the assumption that the slot The received SCI format determines the slot and resource block set that overlaps with the target resource set. The target resource set includes at least one of the following:
[0303] Multi-Slot candidate resource x;
[0304] The frequency domain resources that are the same as the Multi-Slot candidate resource x, and the slot number is increased by the slot number of the Multi-Slot candidate resource x The slot number here is the slot number in a resource pool, that is, the logical slot number, and j is a non-negative integer with a certain value range.
[0305] above is a positive integer. In a special case, P in ms rsvp_TX The value is converted to the number of logical slots.
[0306] The above P′ rsvp_RX P in ms rsvp_RX The value is converted to a number of logical slots.
[0307] In one example, the first resource set is set S after executing the resource exclusion in Example 6 above. A .
[0308] In one example, the first terminal determines a second resource set, where the determined second resource set is a subset of the first resource set, the first resource set includes at least one time-frequency resource with continuous slots in a resource pool within a time interval [n+T1, n+T2], and the determined second resource set includes time-frequency resources with continuous slots in the first resource set.
[0309] In one example, the first terminal determines the second resource set, including: excluding time-frequency resources whose physical slots are discontinuous in the first resource set. That is, excluding the set S A The physical slots in the network are discontinuous time-frequency resources.
[0310] In one example, the second resource set is the set S after executing the above-mentioned exclusion of the time-frequency resources with discontinuous physical slots in the first resource set. A .
[0311] In one example, in Example 6 above, before resource exclusion, set S A , which is the set S after executing the resource exclusion in Example 5 above A , or execute set S in Example 5 A Initialized set S A , or execute the resource exclusion in Example 5 above and execute the set S in Example 5 A Initialized set S A .
[0312] In Example 7, if set S A The remaining candidate Multi-Slot resources in meet the conditions, then for each priority value (p i ,p j ) corresponds to Th(p i ,p j ) increases by 3dB, and continues with Example 7. The conditions here include at least: set S A The remaining candidate Multi-Slot resources in are less than X·Mtotal .
[0313] In one example, the set S in Example 7 A This is the second resource set mentioned above.
[0314] In one example, M total The number of Multi-Slot resources included in the first resource set.
[0315] In one example, X is a percentage value, or X is a ratio value.
[0316] In one example, after determining the second resource set, the first terminal no longer performs resource exclusion.
[0317] In an example, the first terminal reports the second resource set to a higher layer.
[0318] In one example, the higher layer selects at least one resource from the second resource set for sidelink information transmission.
[0319] In one example, a higher layer of the first terminal selects at least one resource from the second resource set for sending sidelink information, where the sidelink information includes PSCCH / PSSCH transmission.
[0320] In one example, PSCCH / PSSCH transmission includes at least one of the following: PSCCH transmission; PSSCH transmission; PSCCH transmission and PSSCH transmission.
[0321] Example 10
[0322] In one example, a higher layer of a first terminal requests the first terminal to determine a resource subset. To trigger this process, a timeslot n, the higher layer provides one or more parameters of a PSSCH / PSCCH transmission.
[0323] In one example, the time slot n is marked as the first time.
[0324] In one example, the above-mentioned high layer includes at least one of the following: MAC layer, RRC layer.
[0325] In one example, the upper layer provides one or more PSSCH / PSCCH transmission parameters including the slot number, which represents the number of consecutive slots in a resource pool. The slot number is marked as N or N slot,MCSt .
[0326] In one example, the number of slots includes at least one of the following:
[0327] The number of consecutive physical time slots for multiple consecutive time slot transmissions (number of consecutive slots for MCSt);
[0328] Number of consecutive physical time slots;
[0329] The number of consecutive logical slots for multiple consecutive time slot transmissions (number of consecutive logical slots for MCSt);
[0330] Number of consecutive logical slots.
[0331] Among them, MCSt represents multiple continuous slot transmissions, and multiple continuous slots represent that the slots of PSCCH / PSSCH transmission belong to continuous slots within a resource pool.
[0332] In an example, the number of consecutive slots for MCSt is N, indicating that PSCCH / PSSCH transmission includes N consecutive slots within a resource pool in the time domain.
[0333] In an example, the number of consecutive slots is N, indicating that PSCCH / PSSCH transmission includes N consecutive slots within a resource pool in the time domain.
[0334] In an example, the number of consecutive logical slots for MCSt is N, indicating that PSCCH / PSSCH transmission includes N consecutive slots within a resource pool in the time domain.
[0335] In an example, the number of consecutive logical slots is N, indicating that PSCCH / PSSCH transmission includes N consecutive slots within a resource pool in the time domain.
[0336] In one example, the slot number represents the number of consecutive slots for a resource within a resource pool. The consecutive slot number N corresponds to N consecutive slots. These N slots may not be numbered consecutively, that is, the physical slot numbers may not be consecutive. However, the slot numbers within a resource pool are consecutive, that is, the logical slot numbers within a resource pool are consecutive.
[0337] In one example, the upper layer provides one or more PSSCH / PSCCH transmission parameters including not only the number of slots but also a remaining packet delay budget, including at least one of the following:
[0338] The number of slots is less than or equal to a remaining packet delay budget (Remaining Packet Delay Budget);
[0339] The slot number is converted to a value that is less than or equal to a remaining packet delay budget.
[0340] The remaining packet delay budget is converted to a value, and the number of slots is less than or equal to the converted value;
[0341] The number of slots corresponds to a value, and the corresponding value is less than or equal to a remaining packet delay budget (Remaining Packet Delay Budget);
[0342] The number of slots is less than or equal to the difference between the remaining packet delay budget and a value, wherein the value represents the number of slots, and the value depends on the SCS (subcarrier spacing) configuration of an SL BWP.
[0343] In one example, the above one value is marked as With μ SL The relationship between is shown in Table 1. In Table 1, μ SL It is an SCS configuration of SL BWP.
[0344] Table 1 Mapping relationship with subcarrier spacing
[0345] In one example, the remaining packet delay budget represents the number of remaining slots. If the packet is not sent within the remaining number of slots, it means that the packet is out of time.
[0346] In one example, the slot number is converted to a value M, the slot number N represents the logical slot number, and the logical slot number N is converted to the physical slot number M.
[0347] In one example, the slot number corresponds to a value M, the slot number N represents the logical slot number, and the physical slot number corresponding to the logical slot number N is M.
[0348] In one example, the remaining packet delay budget is converted to a value Q, the unit of the remaining packet delay budget is slot (denoted as physical slot), and the remaining packet delay budget is converted to a logical slot number Q with the unit of logical slot.
[0349] In one example, the upper layer provides one or more PSSCH / PSCCH transmission parameters including not only the number of slots but also the resource reservation interval, which is marked as P′. rsvp_TX , P′ rsvp_TX The unit is ms, P′ rsvp_TX is converted to a value P′ in logical slots rsvp_TX Include at least one of the following:
[0350] The number of slots is less than or equal to P' rsvp_TX .
[0351] The number of slots is less than or equal to P' rsvp_TX and a compensation value.
[0352] The number of slots is less than or equal to 2 μ and P′ rsvp_TX The product of , the value of μ is a non-negative integer, and the μ represents the SCS configuration of an SL BWP.
[0353] The number of slots is less than or equal to 2 μ and P′ rsvp_TX The product of and a compensation value, the value of μ is a non-negative integer, and the μ represents the SCS configuration of an SL BWP.
[0354] In a special case, the μ corresponds to μ in Table 1 SL .
[0355] In one example, the first terminal determines a second resource set, where the determined second resource set is a subset of the first resource set, the first resource set includes at least one time-frequency resource with consecutive slots in a resource pool within a time interval [n+T1, n+T2], and the determined second resource set includes the time-frequency resources with consecutive slots in the first resource set;
[0356] In one example, a higher layer of a first terminal requests the first terminal to determine a resource subset. To trigger this process, a timeslot n, the higher layer provides one or more parameters of a PSSCH / PSCCH transmission.
[0357] In one example, the first terminal excludes a resource set. A resource set is a resource set corresponding to the at least one time-frequency resource, or a subset of the resource set corresponding to the at least one time-frequency resource.
[0358] In one example, the time interval [n+T1, n+T2] includes at least one time-frequency resource with consecutive slots in a resource pool.
[0359] In one example, the time n is marked as the first time, T1 is marked as the second time, and T3 is marked as the third time.
[0360] In one example, the higher layer provides one or more PSSCH / PSCCH transmission parameters including the slot number N, and the first terminal determines the second time T1, where the determined T1 satisfies at least one of the following conditions:
[0361] T1 is less than or equal to the difference between the remaining packet delay budget and the number of consecutive slots N plus 1;
[0362] T1 is less than or equal to the difference between the remaining packet delay budget and a value M plus 1;
[0363] T1 is less than or equal to min( The Residual Packet Delay Budget (RDP) is a value that depends on the SCS configuration of a side link BWP (Bandwidth Part).
[0364] In one example, the number of consecutive slots N in units of logical slots is converted to a value M in units of physical slots.
[0365] In one example, the higher layer provides one or more PSSCH / PSCCH transmission parameters including the number of slots, and the first terminal determines a third time T2, where the determined T2 satisfies at least one of the following conditions:
[0366] T2-T1+1 is greater than or equal to the number of slots N;
[0367] The number of slots is less than or equal to the difference between T2 and a value, wherein the value represents the number of slots, and the value depends on the SCS configuration of an SL BWP;
[0368] Slot number is less than or equal to T2.
[0369] In one example, a value of the SCS configuration depending on a SL BWP is marked as As shown in Table 1.
[0370] In one example, the remaining information packet delay budget is in units of time slots, and the remaining information packet delay budget may also be referred to as a remaining packet delay budget.
[0371] Example 11
[0372] In one example, a channel is defined as a frequency domain resource with a bandwidth of typically 20 MHz and belonging to the unlicensed spectrum. In the unlicensed spectrum, a communication node performs a channel access procedure for one or more channels and can only transmit information on the channel(s) if the channel(s) are assessed as available.
[0373] A channel may include several RBs that can be used for information transmission, called an RB set. In addition to the RB set, a channel may also include other RBs used for guard bands.
[0374] In one example, the communication node performs a channel access procedure in units of one or more channels to determine whether the channel is available.
[0375] In one example, the communication node performs a channel access procedure in units of one or more RB sets to determine whether the channel is available.
[0376] In one example, the channel access process is equivalent to LBT (Listen Before Talk) monitoring.
[0377] Example 12
[0378] In one example, a resource pool includes several time-frequency resources, including several frequency domain resources in the frequency domain and several time domain units in the time domain, for example, each time domain unit is a slot.
[0379] In an example, the time-frequency resources included in a resource pool are time-frequency resources that can be used for sidelink communication (or time-frequency resources that can be used for PSSCH transmission).
[0380] In an example, a resource pool includes multiple RB sets in the frequency domain.
[0381] In one example, a first terminal excludes time-frequency resources from a resource pool within a time range [n+T1, n+T2]. The set of time-frequency resources before exclusion is: the time-frequency resources within the resource pool that fall within the time range [n+T1, n+T2]. For descriptive purposes, the time interval corresponding to the time range [n+T1, n+T2] is labeled as a selection window.
[0382] FIG4 is a schematic diagram of an embodiment of excluding time-frequency resources on a resource pool within a time range. As shown in FIG4 , the first terminal receives SCI within the time domain monitoring window. The first terminal receives SCI sent by other terminals, and the SCI sent by other terminals is sent via PSCCH. Other terminals will simultaneously send PSSCH in the slot where PSCCH is sent. Other terminals will simultaneously send PSCCH DMRS in the time-frequency region where PSCCH is sent. Similarly, other terminals will simultaneously send PSSCH DMRS in the time-frequency region where PSSCH is sent. The SCI information sent by other terminals includes an indication of the time-frequency resources reserved by the terminal.
[0383] The first terminal determines the time-frequency resources reserved by other terminals by receiving the above-mentioned SCI. Based on the reception of SCI, the first terminal selects (excludes) resources within the time domain resource selection window. The time domain resource selection window here is a time interval, or a set of slots within a time interval. As shown in Figure 4, the time domain resource selection window includes several resources, some of which overlap with the time-frequency resources reserved by other terminals, and some of which do not overlap with the time-frequency resources reserved by other terminals. The first terminal excludes resources with RSRP higher than the threshold in a resource pool within the resource selection window by measuring RSRP, and the remaining resources are marked as resource set A, or the resource subset of the remaining resources is marked as set A. The first terminal selects time-frequency resources from set A for sending side link information.
[0384] The present application also provides a resource determination device. FIG5 is a schematic diagram of the structure of a resource determination device provided by an embodiment. As shown in FIG5, the resource determination device includes:
[0385] The determining module 210 is configured to determine a second resource set, wherein any time-frequency resource in the second resource set is a time-frequency resource with continuous logical time slots;
[0386] The exclusion module 220 is configured to exclude at least one time-frequency resource in the second resource set, and the remaining time-frequency resources in the second resource set after the resource exclusion are the third resource set.
[0387] The resource determination device of this embodiment, by determining the second resource set and determining the third resource set therefrom, includes time-frequency resources with continuous physical time slots, so that the time-frequency resources selected by the terminal are continuous in the time domain and fall into the same group of multiple continuous channels in the frequency domain. On this basis, a terminal does not need to compete for a channel through a channel access process before transmitting on each time-frequency resource on the selected time-frequency resources. After a terminal successfully competes for a channel through a channel access process before transmitting on the i-th time-frequency resource on the selected N time-frequency resources, it can directly transmit on these subsequent resources without competing for a channel before transmitting on the time-frequency resources after the i-th time-frequency resource, thereby increasing the chance of channel access.
[0388] In one embodiment, the second resource set is a subset of the first resource set, the first resource set includes one or more logically continuous time slots in a resource pool within a set time interval, and any time frequency resource determined in the second resource set is a time frequency resource with continuous logical time slots and continuous physical time slots.
[0389] In one embodiment, the apparatus further comprises:
[0390] A selection module, configured to select at least one target resource from the third resource set or a subset of the third resource set;
[0391] The sending module is configured to send side link information or a physical side link channel through all or part of the at least one target resource.
[0392] In one embodiment, the frequency domain of each time-frequency resource in the second resource set includes at least one of the following:
[0393] One or more consecutive subchannels in a resource pool;
[0394] One or more consecutive resource block sets, and each of the time-frequency resources includes one or more consecutive sub-channels in each resource block set.
[0395] In one embodiment, determining the second resource set includes:
[0396] The time-frequency resources with discontinuous physical time slots in the first resource set are excluded, and the remaining time-frequency resources in the first resource set after the resources are excluded are the second resource set.
[0397] In one embodiment, determining the second resource set includes:
[0398] The second resource set is defined as time-frequency resources with continuous physical time slots in the first resource set.
[0399] In one embodiment, the apparatus further comprises:
[0400] A parameter providing module, configured to provide parameters of physical edge link transmission to the first terminal through a higher layer, wherein the parameters of the physical edge link transmission include the number of consecutive time slots;
[0401] The physical side link transmission includes one of the following: transmission of PSCCH and PSSCH, transmission of PSCCH, and transmission of PSSCH.
[0402] In one embodiment, the number of consecutive time slots includes at least one of the following:
[0403] The number of consecutive physical time slots for multiple consecutive time slot transmissions;
[0404] Number of consecutive physical time slots;
[0405] The number of consecutive logical time slots for multiple consecutive time slot transmissions;
[0406] Number of consecutive logical time slots.
[0407] In one embodiment, the parameters transmitted by the physical edge link further include at least one of the following:
[0408] Remaining packet delay budget;
[0409] The number of subchannels for PSSCH transmission;
[0410] The number of resource block sets used for PSCCH and PSSCH transmissions;
[0411] The number of subchannels used in each resource block set used for PSCCH and PSSCH transmission;
[0412] Resource reservation interval;
[0413] The set of resource blocks with consecutive LBT failures.
[0414] In one embodiment, the parameters of the physical side link transmission also include a remaining packet delay budget;
[0415] The remaining packet delay budget satisfies at least one of the following:
[0416] The number of consecutive time slots is less than or equal to the remaining packet delay budget;
[0417] The converted value of the number of consecutive time slots is less than or equal to the remaining packet delay budget;
[0418] The number of consecutive time slots is less than or equal to a converted value of the remaining packet delay budget;
[0419] The corresponding value of the number of consecutive time slots is less than or equal to the remaining packet delay budget;
[0420] The number of consecutive time slots is less than or equal to the difference between the remaining information packet delay budget and a first set value, and the first set value is determined according to the subcarrier spacing configuration of the side link bandwidth portion.
[0421] In one embodiment, the parameter transmitted by the physical edge link further includes a resource reservation interval, the resource reservation interval is converted into a value in units of logical time slots, and the value in units of logical time slots is marked as a conversion value;
[0422] The conversion value satisfies at least one of the following:
[0423] The number of consecutive time slots is less than or equal to the conversion value;
[0424] The number of consecutive time slots is less than or equal to the sum of the conversion value and a compensation value;
[0425] The number of consecutive time slots is less than or equal to 2 μ multiplied by the converted value;
[0426] The number of consecutive time slots is less than or equal to 2 μ The sum of the product of the conversion value and a compensation value;
[0427] Wherein, μ is a non-negative integer, and μ is determined according to the subcarrier spacing configuration of the side link bandwidth part.
[0428] In one embodiment, the parameters of the physical edge link transmission further include a remaining packet delay budget;
[0429] Any resource in the first resource set is no earlier than the sum of a first time and a second time, and the second time satisfies at least one of the following:
[0430] The second time is less than or equal to the difference between the remaining packet delay budget and the number of consecutive time slots plus one;
[0431] The second time is less than or equal to the difference between the remaining information packet delay budget and a second set value plus one, and the second set value is obtained by converting the number of consecutive time slots in units of logical time slots into units of physical time slots.
[0432] In one embodiment, the parameters of the physical side link transmission also include a remaining packet delay budget;
[0433] Any resource in the first resource set is no earlier than the sum of the first time and the second time, and no later than the sum of the first time and the third time.
[0434] The third time satisfies at least one of the following:
[0435] The number of consecutive time slots is less than or equal to the difference between the third time and the second time plus one;
[0436] The number of consecutive time slots is less than or equal to the difference between the third time and a third set value plus one, and the third set value is determined according to the subcarrier spacing configuration of the side link bandwidth portion;
[0437] The number of consecutive time slots is less than or equal to the third time.
[0438] In one embodiment, any time-frequency resource in the second resource set is a time-frequency resource with continuous logical time slots and continuous physical time slots.
[0439] The resource determination device proposed in this embodiment and the resource determination method proposed in the above embodiment belong to the same inventive concept. Technical details not fully described in this embodiment can be referred to any of the above embodiments, and this embodiment has the same beneficial effects as executing the resource determination method.
[0440] An embodiment of the present application also provides a communication node. Figure 6 is a schematic diagram of the hardware structure of a communication node provided by an embodiment. As shown in Figure 6, the communication node provided by the present application includes a processor 510 and a memory 520; the processor 510 in the communication node can be one or more, and Figure 6 takes one processor 510 as an example; the memory 520 is configured to store one or more programs; the one or more programs are executed by the one or more processors 510, so that the one or more processors 510 implement the resource determination method as described in the embodiment of the present application.
[0441] The communication node further includes: a communication device 530 , an input device 540 and an output device 550 .
[0442] The processor 510, memory 520, communication device 530, input device 540 and output device 550 in the communication node may be connected via a bus or other means. FIG6 takes the bus connection as an example.
[0443] The input device 540 may be used to receive input digital or character information and generate key signal input related to user settings and function control of the communication node. The output device 550 may include a display device such as a display screen.
[0444] The communication device 530 may include a receiver and a transmitter. The communication device 530 is configured to perform information transmission and reception communication according to the control of the processor 510.
[0445] The memory 520, as a computer-readable storage medium, can be configured to store software programs, computer executable programs, and modules, such as the program instructions / modules corresponding to the resource determination method described in the embodiment of the present application (for example, the first determination module 310 and the exclusion 320 in the resource determination device). The memory 520 may include a program storage area and a data storage area, wherein the program storage area may store an operating system, an application required for at least one function; the data storage area may store data created according to the use of the communication node, etc. In addition, the memory 520 may include a high-speed random access memory, and may also include a non-volatile memory, such as at least one disk storage device, a flash memory device, or other non-volatile solid-state storage device. In some instances, the memory 520 may further include a memory remotely arranged relative to the processor 510, and these remote memories may be connected to the communication node via a network. Examples of the above-mentioned network include, but are not limited to, the Internet, an intranet, a local area network, a mobile communication network, and combinations thereof.
[0446] An embodiment of the present application further provides a storage medium storing a computer program, which, when executed by a processor, implements the resource determination method described in any of the embodiments of the present application. The method includes: determining a second resource set, wherein any time-frequency resource in the second resource set is a time-frequency resource with continuous logical time slots; excluding at least one time-frequency resource in the second resource set, and the remaining time-frequency resources in the second resource set after the resource exclusion are a third resource set.
[0447] The computer storage medium of the embodiment of the present application can adopt any combination of one or more computer-readable media.Computer-readable media can be computer-readable signal media or computer-readable storage media.Computer-readable storage media can be, for example, but not limited to: electrical, magnetic, optical, electromagnetic, infrared, or semiconductor systems, devices or devices, or any combination of the above.More specific examples (non-exhaustive list) of computer-readable storage media include: electrical connections with one or more wires, portable computer disks, hard disks, random access memories (RAM), read-only memories (ROM), erasable programmable read-only memories (EPROM), flash memories, optical fibers, portable CD-ROMs, optical storage devices, magnetic storage devices, or any suitable combination of the above.Computer-readable storage media can be any tangible medium containing or storing a program, which can be used by an instruction execution system, device or device or used in combination with it.
[0448] A computer-readable signal medium may include a data signal propagated in baseband or as part of a carrier wave, carrying computer-readable program code. Such a propagated data signal may take a variety of forms, including but not limited to electromagnetic signals, optical signals, or any suitable combination thereof. A computer-readable signal medium may also be any computer-readable medium other than a computer-readable storage medium that can transmit, propagate, or transport a program for use by or in conjunction with an instruction execution system, apparatus, or device.
[0449] The program code contained on the computer-readable medium may be transmitted using any appropriate medium, including but not limited to wireless, wire, optical cable, radio frequency (RF), etc., or any suitable combination of the foregoing.
[0450] The computer program code for performing the operations of the present application can be written in one or more programming languages or a combination thereof, including object-oriented programming languages such as Java, Smalltalk, C++, and conventional procedural programming languages such as "C" or similar programming languages. The program code can be executed entirely on the user's computer, partially on the user's computer, as a separate software package, partially on the user's computer and partially on a remote computer, or entirely on a remote computer or server. In cases involving a remote computer, the remote computer can be connected to the user's computer through any type of network, including a local area network (LAN) or a wide area network (WAN), or can be connected to an external computer (e.g., via the Internet using an Internet service provider).
[0451] The above description is merely an exemplary embodiment of the present application and is not intended to limit the scope of protection of the present application.
[0452] It will be appreciated by those skilled in the art that the term user terminal covers any suitable type of wireless user equipment, such as a mobile phone, a portable data processing device, a portable web browser or a vehicle-mounted mobile station.
[0453] In general, various embodiments of the present application may be implemented in hardware or dedicated circuits, software, logic, or any combination thereof. For example, some aspects may be implemented in hardware, while other aspects may be implemented in firmware or software that can be executed by a controller, microprocessor, or other computing device, although the present application is not limited thereto.
[0454] Embodiments of the present application may be implemented by executing computer program instructions by a data processor of a mobile device, for example, in a processor entity, or by hardware, or by a combination of software and hardware. The computer program instructions may be assembly instructions, instruction set architecture (ISA) instructions, machine instructions, machine-dependent instructions, microcode, firmware instructions, state setting data, or source code or object code written in any combination of one or more programming languages.
[0455] The block diagram of any logical flow in the drawings of this application may represent program steps, or may represent interconnected logical circuits, modules and functions, or may represent a combination of program steps and logical circuits, modules and functions. A computer program may be stored on a memory. The memory may be of any type suitable for the local technical environment and may be implemented using any suitable data storage technology, such as but not limited to read-only memory (ROM), random access memory (RAM), optical storage devices and systems (digital versatile discs (DVD) or compact disks (CD), etc.). Computer-readable media may include non-transitory storage media. The data processor may be of any type suitable for the local technical environment, such as but not limited to a general-purpose computer, a special-purpose computer, a microprocessor, a digital signal processor (DSP), an application-specific integrated circuit (ASIC), a field-programmable gate array (FPGA) and a processor based on a multi-core processor architecture.
[0456] The above description of exemplary embodiments of the present application has been provided by way of exemplary and non-limiting examples. However, various modifications and adaptations of the above embodiments will be apparent to those skilled in the art, when considered in conjunction with the accompanying drawings and the appended claims, without departing from the scope of the present application. Therefore, the proper scope of the present application will be determined by reference to the appended claims.
Claims
1. A resource determination method, comprising: Determine a second resource set, wherein any time-frequency resource in the second resource set is a time-frequency resource with continuous logical time slots; At least one time-frequency resource in the second resource set is excluded, and the remaining time-frequency resources in the second resource set after the resource exclusion are the third resource set.
2. The method according to claim 1, wherein: The second resource set is a subset of the first resource set, the first resource set includes one or more logically continuous time slots of time-frequency resources in a resource pool within a set time interval, and any time-frequency resource in the second resource set is a time-frequency resource with continuous logical time slots and continuous physical time slots.
3. The method according to claim 1, wherein: The frequency domain of each time-frequency resource in the second resource set includes at least one of the following: One or more consecutive subchannels in a resource pool; One or more consecutive resource block sets, and each of the time-frequency resources includes one or more consecutive sub-channels in each resource block set.
4. The method according to claim 2, wherein: The determining of the second resource set includes: The time-frequency resources with discontinuous physical time slots in the first resource set are excluded, and the remaining time-frequency resources in the first resource set after the resources are excluded are the second resource set.
5. The method according to claim 2, wherein: The determining of the second resource set includes: The second resource set is defined as time-frequency resources with continuous physical time slots in the first resource set.
6. The method according to claim 1, wherein: Also includes: Providing a parameter of a physical side link transmission to the first terminal through a high layer, wherein the parameter of the physical side link transmission includes a number of consecutive time slots; The physical side link transmission includes one of the following: transmission of a physical side link control channel PSCCH and a physical side link shared channel PSSCH, transmission of PSCCH, and transmission of PSSCH.
7. The method according to claim 6, wherein: The number of consecutive time slots includes at least one of the following: The number of consecutive physical time slots for multiple consecutive time slot transmissions; Number of consecutive physical time slots; The number of consecutive logical time slots for multiple consecutive time slot transmissions; Number of consecutive logical time slots.
8. The method according to claim 6, wherein: The parameters transmitted by the physical edge link also include at least one of the following: Remaining packet delay budget; The number of subchannels for PSSCH transmission; The number of resource block sets used for PSCCH and PSSCH transmissions; The number of subchannels used in each resource block set in the resource block sets used for PSCCH and PSSCH transmission; Resource reservation interval; The set of resource blocks where consecutive channel sensing LBT fails.
9. The method according to claim 6, wherein: The parameters of the physical edge link transmission also include a remaining packet delay budget; The remaining packet delay budget satisfies at least one of the following: The number of consecutive time slots is less than or equal to the remaining packet delay budget; The converted value of the number of consecutive time slots is less than or equal to the remaining packet delay budget; The number of consecutive time slots is less than or equal to a converted value of the remaining packet delay budget; The corresponding value of the number of consecutive time slots is less than or equal to the remaining packet delay budget; The number of consecutive time slots is less than or equal to the difference between the remaining packet delay budget and a first set value, and the first set value is determined according to the subcarrier spacing configuration of the side link bandwidth portion.
10. The method according to claim 6, wherein: The parameters transmitted by the physical side link further include a resource reservation interval, the resource reservation interval is converted into a value in units of logical time slots, and the value in units of logical time slots is marked as a conversion value; The conversion value satisfies at least one of the following: The number of consecutive time slots is less than or equal to the conversion value; The number of consecutive time slots is less than or equal to the sum of the conversion value and a compensation value; The number of consecutive time slots is less than or equal to 2 μ multiplied by the converted value; The number of consecutive time slots is less than or equal to 2 μ The sum of the product of the conversion value and a compensation value; Wherein, μ is a non-negative integer, and μ is determined according to the subcarrier spacing configuration of the side link bandwidth portion.
11. The method according to claim 2, wherein: The parameters for physical side link transmission also include the remaining packet delay budget; Any resource in the first resource set is no earlier than the sum of the first time and the second time, and the second time satisfies at least one of the following: The second time is less than or equal to the difference between the remaining information packet delay budget and the number of consecutive time slots plus one; The second time is less than or equal to the difference between the remaining information packet delay budget and the second set value plus one, and the second set value is obtained by converting the number of consecutive time slots in units of logical time slots into units of physical time slots.
12. The method according to claim 2, wherein: The parameters for physical side link transmission also include the remaining packet delay budget; Any resource in the first resource set is no earlier than the sum of the first time and the second time, and no later than the sum of the first and third times; The third time satisfies at least one of the following: The number of consecutive time slots is less than or equal to the difference between the third time and the second time plus one; The number of consecutive time slots is less than or equal to the difference between the third time and a third set value plus one, and the third set value is determined according to the subcarrier spacing configuration of the side link bandwidth part; The number of consecutive time slots is less than or equal to the third time.
13. The method according to claim 1, wherein: Also includes: Selecting at least one target resource from the third resource set or a subset of the third resource set; The side link information or the physical side link channel is sent through all or part of the at least one target resource.
14. The method according to claim 1, wherein: Any time-frequency resource in the second resource set is a time-frequency resource with continuous logical time slots and continuous physical time slots.
15. A communication node, comprising: memory, and one or more processors; The memory is configured to store one or more programs; When the one or more programs are executed by the one or more processors, the one or more processors implement the resource determination method according to any one of claims 1 to 14.
16. A computer-readable storage medium having a computer program stored thereon, wherein when the program is executed by a processor, the resource determination method according to any one of claims 1 to 14 is implemented.
Citation Information
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