CN115941458A - Method for determining sub-channel, communication node and storage medium - Google Patents

Method for determining sub-channel, communication node and storage medium Download PDF

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Publication number
CN115941458A
CN115941458A CN202211204748.4A CN202211204748A CN115941458A CN 115941458 A CN115941458 A CN 115941458A CN 202211204748 A CN202211204748 A CN 202211204748A CN 115941458 A CN115941458 A CN 115941458A
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China
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sub
channel
resource blocks
size
channels
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Chinese (zh)
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苗婷
卢有雄
邢卫民
陈杰
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ZTE Corp
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ZTE Corp
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Priority to CN202211204748.4A priority Critical patent/CN115941458A/en
Publication of CN115941458A publication Critical patent/CN115941458A/en
Priority to PCT/CN2023/120963 priority patent/WO2024067450A1/en
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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L41/00—Arrangements for maintenance, administration or management of data switching networks, e.g. of packet switching networks
    • H04L41/08—Configuration management of networks or network elements
    • H04L41/0803—Configuration setting
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L41/00—Arrangements for maintenance, administration or management of data switching networks, e.g. of packet switching networks
    • H04L41/08—Configuration management of networks or network elements
    • H04L41/0803—Configuration setting
    • H04L41/0823—Configuration setting characterised by the purposes of a change of settings, e.g. optimising configuration for enhancing reliability
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L47/00—Traffic control in data switching networks
    • H04L47/70—Admission control; Resource allocation
    • H04L47/76—Admission control; Resource allocation using dynamic resource allocation, e.g. in-call renegotiation requested by the user or requested by the network in response to changing network conditions
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L47/00—Traffic control in data switching networks
    • H04L47/70—Admission control; Resource allocation
    • H04L47/78—Architectures of resource allocation
    • H04L47/783—Distributed allocation of resources, e.g. bandwidth brokers

Abstract

The application discloses a method for determining a sub-channel, a communication node and a storage medium. The method comprises the following steps: determining configuration information, wherein the configuration information comprises at least one of the starting resource block position, the sub-channel size and the sub-channel number of the first sub-channel; and determining the sub-channels included in the resource pool according to the preset rule and the configuration information.

Description

Method for determining sub-channel, communication node and storage medium
Technical Field
The present application relates to the field of communications technologies, and for example, to a method for determining a sub-channel, a communication node, and a storage medium.
Background
For Side Link (SL) communication over an unlicensed band, generally, one carrier configures one SL Bandwidth Part (BWP), and one or more SL Resource pools (hereinafter referred to as Resource pools) are configured in the BWP, where one Resource pool may include one or more Resource Block sets (RB sets). When the resource pool contains multiple RB sets, a guard band is usually left between adjacent RB sets to avoid transmissions on different RB sets interfering with each other. When adjacent sets of RBs are both idle (i.e. not occupied by other devices), a higher resource utilization may be achieved if both adjacent sets of RBs and guard bands between them are available for use than if only resources within the sets of RBs are used. However, when a UE uses one RB set, the adjacent RB set may be occupied by other devices, especially by other devices of different systems, and a guard band is not generally used in order to avoid interference between adjacent RB sets. Since the SL usually performs resource allocation or resource selection based on the sub-channels, how to determine the sub-channels included in the resource pool is an urgent problem to be solved at present.
Disclosure of Invention
The embodiment of the application provides a method for determining a sub-channel, which comprises the following steps:
determining configuration information, wherein the configuration information comprises at least one of the starting resource block position, the sub-channel size and the sub-channel number of the first sub-channel;
and determining the sub-channels included in the resource pool according to the preset rule and the configuration information.
An embodiment of the present application provides a communication node, including: a processor; the processor is adapted to implement the method of any of the above embodiments when executing the computer program.
The embodiments of the present application further provide a computer-readable storage medium, which stores a computer program, and when the computer program is executed by a processor, the computer program implements the method of any of the embodiments.
With regard to the above embodiments and other aspects of the present application and implementations thereof, further description is provided in the accompanying drawings description, detailed description and claims.
Drawings
Fig. 1 is a flowchart illustrating a method for determining a sub-channel according to an embodiment;
fig. 2 is a schematic diagram of determining sub-channels to which remaining resource blocks belong according to rules a4-01, or rule c1, or a combination of rules d1 and d7 according to an embodiment;
fig. 3 is another schematic diagram provided in an embodiment, where the sub-channels to which the remaining resource blocks belong are determined by using rule a4-01, rule c1, or a combination of rules d1 and d 7;
fig. 4 is a schematic diagram of determining sub-channels to which remaining resource blocks belong according to rules a4-02, or rule c2, or a combination of rules d14 and d20 according to an embodiment;
fig. 5 is a schematic diagram of determining a sub-channel to which a remaining resource block belongs by using rule a1 or rule c3 according to an embodiment;
fig. 6 is a schematic diagram of determining a sub-channel to which a remaining resource block belongs according to rule a3 or rule c4 according to an embodiment;
fig. 7 is a schematic diagram of determining sub-channels to which remaining resource blocks belong according to an embodiment using rules a4-03 or a combination of rules d40 and d 41;
fig. 8 is a schematic diagram of determining sub-channels to which remaining resource blocks belong according to rules a4-04 or a combination of rules d41, d43, and d44 according to an embodiment;
fig. 9 is a schematic diagram of determining sub-channels to which remaining resource blocks belong according to an embodiment using rules a4-08 or a combination of rules d3, d4, d5, and d 7;
fig. 10 is a schematic diagram of determining sub-channels to which remaining resource blocks belong according to rules a4-09 or a combination of rules d16, d17, d18, and d20 according to an embodiment;
fig. 11 is a schematic diagram of determining sub-channels to which remaining resource blocks belong according to rules a4-10, or rule c6, or a combination of rules d1 and d8 according to an embodiment;
fig. 12 is a schematic diagram of determining sub-channels to which remaining resource blocks belong according to an embodiment using rules a4-11, or rule c7, or a combination of rules d14 and d 21;
fig. 13 is a schematic diagram of an embodiment of determining sub-channels to which remaining resource blocks belong by using rules a4-01, or rule c1, or a combination of rules d1 and d 7;
fig. 14 is a schematic diagram of an embodiment of excluding the divided sub-channels by using a combination of rules e1 and e 2;
fig. 15 is a schematic diagram of an embodiment of excluding divided sub-channels by using a combination of rules e3 and e 4;
fig. 16 is a schematic diagram of an embodiment of excluding the divided sub-channels by using a rule f1 or a rule f 2;
fig. 17 is a diagram illustrating an embodiment of excluding divided sub-channels according to a rule f 3;
fig. 18 is a diagram illustrating a partitioning of subchannels according to an embodiment;
fig. 19 is a schematic structural diagram of an apparatus for determining a sub-channel according to an embodiment;
fig. 20 is a schematic structural diagram of a UE according to an embodiment;
fig. 21 is a schematic structural diagram of a base station (or a higher-layer entity) according to an embodiment.
Detailed Description
It should be understood that the specific embodiments described herein are merely illustrative of the present application and are not intended to limit the present application. Hereinafter, embodiments of the present application will be described in detail with reference to the accompanying drawings.
SL communication includes vehicle-to-vehicle (V2V) communication, vehicle-to-anything (V2X) communication, user Equipment (UE) direct communication (Device to Device, D2D) with UE, and the like. For SL communication, when there is a service to be transmitted between UEs, the service data may be directly transmitted to the target device by the data source device without being forwarded by other network devices, that is, direct communication between devices is achieved.
Currently, SL communication may operate in licensed bands, intelligent Traffic Systems (ITS) bands, and so on. In the future, it may also operate in unlicensed spectrum. When the SL UE is configured with at least one resource pool, the resource pool defines time-frequency resources for SL communication in BWP of a carrier (when the SL works in a licensed frequency band, usually side-link Synchronization Signal/Physical broadcast channel (S-SSB) resources are not contained in the SL resource pool; but when the SL works in an unlicensed frequency band, the S-SSB resources may not be contained in the SL resource pool, and may also be contained in the SL resource pool). In the time domain, a resource pool is composed of a set of slots with a certain period. In the frequency domain, the Resource pool is composed of at least one continuous sub-channel, the sub-channel includes a plurality of continuous Resource Blocks (RBs), and the size of the sub-channel is configurable. In general, in the frequency domain, the granularity of resource allocation is sub-channel, with each SL transmission occupying one or more contiguous sub-channels.
For SL communication on the unlicensed band, when the resource pool contains multiple RB sets, a guard band is usually left between adjacent RB sets to avoid transmission on different RB sets from interfering with each other. When adjacent sets of RBs are both idle (i.e. not occupied by other devices), a higher resource utilization may be achieved if both adjacent sets of RBs and guard bands between them are available for use than if only resources within the sets of RBs are used. However, when a UE uses one RB set, the adjacent RB set may be occupied by other devices, especially by other devices of different systems, and a guard band is not generally used in order to avoid interference between adjacent RB sets. Therefore, how to determine the sub-channels included in the resource pool is a problem that needs to be solved.
The method for determining the sub-channel provided by the application can be applied to SL communication systems based on various wireless communication technologies, such as SL communication systems based on LTE technology, 4G technology, 5G technology, LTE and 5G hybrid technology, 5G NR technology, and new communication technologies appearing in future communication development, such as 6th-generation (6G) mobile communication technology.
In the embodiment of the present application, a method for determining a sub-channel, a communication node, and a storage medium are provided, which can determine a sub-channel included in a resource pool and improve resource utilization.
Next, a determination method of a sub-channel, a communication node, and technical effects thereof are described.
Fig. 1 shows a flowchart of a method for determining a sub-channel according to an embodiment, and as shown in fig. 1, the method provided in this embodiment is applied to a communication node, and includes the following steps.
S110, determining configuration information, wherein the configuration information comprises at least one of the starting resource block position, the sub-channel size and the sub-channel number of the first sub-channel.
In an embodiment, the configuration information may be configuration information of a sub-channel corresponding to each resource block set RB set in the resource pool, or may be configuration information of a sub-channel corresponding to the resource pool. That is, the subchannels may be divided by RB set, or may be divided by resource pool.
The configuration information includes at least one of a starting resource block position of the first sub-channel, a size of the sub-channel, and a number of the sub-channels. That is, the configuration information may include: 1. starting resource block position of the first sub-channel; 2. a subchannel size; 3. the number of subchannels; 4. the starting resource block position and the subchannel size of the first subchannel; 5. the starting resource block position and the number of the sub-channels of the first sub-channel; 6. subchannel size and subchannel number; 7. the starting resource block location of the first subchannel, the subchannel size, and the number of subchannels. There are 7 cases in total.
For the case where the configuration information does not include the starting resource block position of the first sub-channel, as in cases 2, 3, 6 above, the communication node may predefine the starting resource block position of the first sub-channel for each RB set or resource pool, e.g., the starting resource block position of the first sub-channel for each RB set/resource pool is the starting resource block position of that RB set/resource pool. For the case where the configuration information does not include the subchannel size, as in cases 1, 3, and 5 above, the communication node may be configured with a default subchannel size in advance. For the case where the configuration information does not include the number of subchannels, as in cases 1, 2, 4 above, the communication node may be configured with a default number of subchannels in advance; or, the communication node calculates the number of sub-channels according to the size of each RB set/resource pool, the starting resource block position of the first sub-channel, and the size of the sub-channel, for example, when the starting resource block position of the first sub-channel corresponding to each RB set/resource pool is the starting resource block position of the RB set/resource pool, the number of sub-channels corresponding to the RB set/resource pool is the number of resource blocks contained in the RB set/resource pool divided by the size of the sub-channel, and if the divided result is not an integer, the result may be rounded down.
And S120, determining the sub-channels included in the resource pool according to the preset rule and the configuration information.
In an embodiment, the preset rule may include at least one of a first preset sub-rule, a second preset sub-rule, and a third preset sub-rule.
As can be seen from step S110, the configuration information may be the configuration information of the sub-channel corresponding to each resource block set RB set in the resource pool, or may also be the configuration information of the sub-channel corresponding to the resource pool. Accordingly, in step S120, regardless of the case to which the configuration information belongs, the sub-channels included in the resource pool may be determined according to a corresponding preset rule. For ease of understanding, the following examples are described in detail for the different cases, respectively.
In addition, in the following embodiments of the present application, the first threshold to the eighth threshold may be configured or predefined by a higher layer entity, unless otherwise specified. The higher layer entity comprises at least one of: the network, the base station, the communication node (e.g., UE) itself, and other higher-level network entities. "first", "second", "…", "eighth", etc. are used only to nominally distinguish between different thresholds, e.g., nor do they exclude portions of thresholds where only ordinal numbers differ from one another from being the same parameter. For example, the third threshold and the fourth threshold are the same parameter, and the fifth threshold and the sixth threshold are the same parameter.
In a first possible implementation manner, the configuration information is configuration information of a sub-channel corresponding to each RB set in the resource pool, the configuration information includes at least one of a starting resource block position of a first sub-channel, a size of the sub-channel, and a number of the sub-channels, and the preset rule includes a first preset sub-rule.
The method for the communication node to determine the sub-channels included in the resource pool comprises the following steps: for any RB set in the resource pool, sequentially dividing a plurality of continuous and non-overlapped sub-channels of the number of the sub-channels according to the size of the sub-channels from the initial resource block position of the first sub-channel of the RB set; if the RB set has residual resource blocks, determining sub-channels to which the residual resource blocks belong according to a first preset sub-rule; the sub-channels included in the resource pool are composed of sub-channels corresponding to all RB sets in the resource pool.
In an embodiment, the remaining resource blocks of the RB set are the resource blocks remaining at the end position of the RB set after sequentially dividing the number of continuous and non-overlapping sub-channels according to the size of the sub-channels from the start resource block position of the first sub-channel of the RB set.
For example, the first preset sub-rule includes any one of the following rules:
rule a1, the remaining resource blocks are used as a subchannel.
Rule a2, the remaining resource blocks do not belong to any subchannel.
Rule a3, the remaining resource blocks and the last sub-channel of the sub-channels with the number of sub-channels divided in sequence according to the size of the sub-channel in RB set are combined into one sub-channel.
And a rule a4, determining the sub-channel to which the residual resource block belongs according to at least one of the size relationship between the number of the residual resource blocks and the first threshold, the size relationship between the ratio of the number of the residual resource blocks to the size of the sub-channel and the second threshold, and whether a guard band exists behind the residual resource blocks.
For rule a4, at least one of the following is included:
rule a4-01: if the number of the remaining resource blocks is larger than or equal to the first threshold, the remaining resource blocks are used as a sub-channel; and if the number of the residual resource blocks is less than the first threshold, the residual resource blocks do not belong to any sub-channel.
Rule a4-02: if the ratio of the number of the remaining resource blocks to the size of the sub-channel is greater than or equal to a second threshold, the remaining resource blocks are used as a sub-channel; and if the ratio of the number of the residual resource blocks to the size of the sub-channel is smaller than a second threshold, the residual resource blocks do not belong to any sub-channel.
Rule a4-03: if a protective band is arranged behind the residual resource blocks, the residual resource blocks and all the resource blocks in the protective band form a sub-channel; and if no guard band exists behind the residual resource blocks, taking the residual resource blocks as a subchannel.
Rule a4-04: if a protective band is arranged behind the residual resource blocks and the sum of the number of the residual resource blocks and the number of the resource blocks contained in the protective band is larger than the size of the sub-channel, the residual resource blocks and part of resource blocks in the protective band form a sub-channel with the size equal to the size of the sub-channel; if a protective band is arranged behind the residual resource blocks and the sum of the number of the residual resource blocks and the number of the resource blocks contained in the protective band is smaller than or equal to the size of the sub-channel, the residual resource blocks and all the resource blocks in the protective band form a sub-channel; and if no guard band exists behind the residual resource blocks, taking the residual resource blocks as a subchannel.
Rule a4-05: if the number of the remaining resource blocks is larger than or equal to a first threshold and the ratio of the number of the remaining resource blocks to the size of the sub-channel is larger than or equal to a second threshold, the remaining resource blocks are used as the sub-channel; and if the number of the residual resource blocks is smaller than the first threshold or the ratio of the number of the residual resource blocks to the size of the sub-channel is smaller than the second threshold, the residual resource blocks do not belong to any sub-channel.
Rule a4-06: if the number of the remaining resource blocks is larger than or equal to a first threshold and a guard band is arranged behind the remaining resource blocks, the remaining resource blocks and all resource blocks in the guard band form a sub-channel; if the number of the remaining resource blocks is larger than or equal to the first threshold and no guard band is arranged behind the remaining resource blocks, the remaining resource blocks are used as a sub-channel; and if the number of the residual resource blocks is less than the first threshold, the residual resource blocks do not belong to any sub-channel.
Rule a4-07: if the ratio of the number of the remaining resource blocks to the size of the sub-channel is greater than or equal to the second threshold and a guard band is arranged behind the remaining resource blocks, the remaining resource blocks and all the resource blocks in the guard band form a sub-channel; if the ratio of the number of the remaining resource blocks to the size of the sub-channel is greater than or equal to the second threshold and no guard band is arranged behind the remaining resource blocks, the remaining resource blocks are used as a sub-channel; and if the ratio of the number of the residual resource blocks to the size of the sub-channel is smaller than a second threshold, the residual resource blocks do not belong to any sub-channel.
Rule a4-08: if the number of the remaining resource blocks is larger than or equal to a first threshold, a guard band is arranged behind the remaining resource blocks, and the sum of the number of the remaining resource blocks and the number of the resource blocks contained in the guard band is larger than the size of a sub-channel, the remaining resource blocks and part of the resource blocks in the guard band form a sub-channel with the size equal to the size of the sub-channel; if the number of the remaining resource blocks is larger than or equal to a first threshold, a guard band is arranged behind the remaining resource blocks, and the sum of the number of the remaining resource blocks and the number of the resource blocks contained in the guard band is smaller than or equal to the size of a sub-channel, the remaining resource blocks and all the resource blocks in the guard band form a sub-channel; if the number of the remaining resource blocks is larger than or equal to the first threshold and no guard band is arranged behind the remaining resource blocks, the remaining resource blocks are used as a sub-channel; and if the number of the residual resource blocks is less than the first threshold, the residual resource blocks do not belong to any sub-channel.
Rule a4-09: if the ratio of the number of the remaining resource blocks to the size of the sub-channel is greater than or equal to a second threshold, a guard band is arranged behind the remaining resource blocks, and the sum of the number of the remaining resource blocks and the number of the resource blocks contained in the guard band is greater than the size of the sub-channel, the remaining resource blocks and part of the resource blocks in the guard band form the sub-channel of which the size is equal to the size of the sub-channel; if the ratio of the number of the remaining resource blocks to the size of the sub-channel is larger than or equal to a second threshold, a guard band is arranged behind the remaining resource blocks, and the sum of the number of the remaining resource blocks and the number of the resource blocks contained in the guard band is smaller than or equal to the size of the sub-channel, the remaining resource blocks and all the resource blocks in the guard band form a sub-channel; if the ratio of the number of the remaining resource blocks to the size of the sub-channel is greater than or equal to the second threshold and no guard band is arranged behind the remaining resource blocks, the remaining resource blocks are used as a sub-channel; and if the ratio of the number of the residual resource blocks to the size of the sub-channel is smaller than a second threshold, the residual resource blocks do not belong to any sub-channel.
Rule a4-10: if the number of the remaining resource blocks is larger than or equal to a first threshold, the remaining resource blocks are used as a sub-channel; and if the number of the residual resource blocks is smaller than the first threshold, combining the residual resource blocks and the last sub-channel in the sub-channels with the number of the sub-channels which are divided in sequence according to the size of the sub-channels in the RB set into one sub-channel.
Rule a4-11: if the ratio of the number of the remaining resource blocks to the size of the sub-channel is greater than or equal to a second threshold, the remaining resource blocks are used as a sub-channel; and if the ratio of the number of the residual resource blocks to the size of the sub-channel is smaller than a second threshold, combining the residual resource blocks and the last sub-channel in the sub-channels with the number of the sub-channels divided in sequence according to the size of the sub-channel in the RB set into one sub-channel.
Rules a4-12: if the number of the remaining resource blocks is larger than or equal to a first threshold and the ratio of the number of the remaining resource blocks to the size of the sub-channel is larger than or equal to a second threshold, the remaining resource blocks are used as the sub-channel; if the number of the remaining resource blocks is smaller than a first threshold or the ratio of the number of the remaining resource blocks to the size of the sub-channel is smaller than a second threshold, the remaining resource blocks and the last sub-channel of the sub-channels with the number of the sub-channels divided in sequence according to the size of the sub-channel in the RB set are combined into one sub-channel.
For another example, if RB set is followed by a guard band, the first preset sub-rule comprises at least one of the following rules:
rule b1, the remaining resource blocks and all resource blocks in the guard band constitute one subchannel.
Rule b2, if the sum of the number of the remaining resource blocks and the number of the resource blocks contained in the guard band is larger than the size of the sub-channel, the remaining resource blocks and part of the resource blocks in the guard band form a sub-channel with the size equal to the size of the sub-channel; and if the sum of the number of the residual resource blocks and the number of the resource blocks contained in the guard band is less than or equal to the size of the sub-channel, the residual resource blocks and all the resource blocks in the guard band form a sub-channel.
Rule b3, if the number of the remaining resource blocks is greater than or equal to the first threshold, the remaining resource blocks and all resource blocks in the guard band form a sub-channel; and if the number of the residual resource blocks is less than the first threshold, the residual resource blocks do not belong to any sub-channel.
Rule b4, if the ratio of the number of the remaining resource blocks to the size of the sub-channel is greater than or equal to the second threshold, the remaining resource blocks and all resource blocks in the guard band form a sub-channel; and if the ratio of the number of the residual resource blocks to the size of the sub-channel is smaller than a second threshold, the residual resource blocks do not belong to any sub-channel.
Rule b5, if the number of the remaining resource blocks is greater than or equal to the first threshold and the sum of the number of the remaining resource blocks and the number of the resource blocks contained in the guard band is greater than the size of the sub-channel, the remaining resource blocks and part of the resource blocks in the guard band form a sub-channel with the size equal to the size of the sub-channel; if the number of the remaining resource blocks is greater than or equal to a first threshold and the sum of the number of the remaining resource blocks and the number of the resource blocks contained in the guard band is less than or equal to the size of the sub-channel, the remaining resource blocks and all the resource blocks in the guard band form a sub-channel; and if the number of the residual resource blocks is less than the first threshold, the residual resource blocks do not belong to any sub-channel.
Rule b6, if the ratio of the number of the remaining resource blocks to the size of the sub-channel is greater than or equal to the second threshold and the sum of the number of the remaining resource blocks and the number of the resource blocks included in the guard band is greater than the size of the sub-channel, the remaining resource blocks and a part of the resource blocks in the guard band form a sub-channel with the size equal to the size of the sub-channel; if the ratio of the number of the remaining resource blocks to the size of the sub-channel is greater than or equal to a second threshold and the sum of the number of the remaining resource blocks and the number of the resource blocks contained in the guard band is less than or equal to the size of the sub-channel, the remaining resource blocks and all the resource blocks in the guard band form a sub-channel; and if the ratio of the number of the residual resource blocks to the size of the sub-channel is smaller than a second threshold, the residual resource blocks do not belong to any sub-channel.
Rule b7, if the sum of the number of the remaining resource blocks and the number of the resource blocks included in the guard band is greater than or equal to the size of the sub-channel, the remaining resource blocks and part or all of the resource blocks in the guard band form a sub-channel with the size equal to the size of the sub-channel; and if the sum of the number of the residual resource blocks and the number of the resource blocks included by the guard band is smaller than the size of the sub-channel, the residual resource blocks do not belong to any sub-channel.
Rule b8, if the number of the remaining resource blocks is greater than or equal to the first threshold and the sum of the number of the remaining resource blocks and the number of the resource blocks included in the guard band is greater than or equal to the size of the sub-channel, the remaining resource blocks and part or all of the resource blocks in the guard band form a sub-channel with the size equal to the size of the sub-channel; and if the number of the remaining resource blocks is smaller than the first threshold or the sum of the number of the remaining resource blocks and the number of the resource blocks included by the guard band is smaller than the size of the sub-channel, the remaining resource blocks do not belong to any sub-channel.
Rule b9, if the ratio of the number of the remaining resource blocks to the size of the sub-channel is greater than or equal to the second threshold and the sum of the number of the remaining resource blocks and the number of the resource blocks included in the guard band is greater than or equal to the size of the sub-channel, the remaining resource blocks and part or all of the resource blocks in the guard band form a sub-channel with the size equal to the size of the sub-channel; and if the ratio of the number of the remaining resource blocks to the size of the sub-channel is smaller than a second threshold or the sum of the number of the remaining resource blocks and the number of the resource blocks included by the guard band is smaller than the size of the sub-channel, the remaining resource blocks do not belong to any sub-channel.
Rule b10, if the number of remaining resource blocks is greater than or equal to the first threshold, the ratio of the number of remaining resource blocks to the size of the sub-channel is greater than or equal to the second threshold, and the sum of the number of remaining resource blocks and the number of resource blocks included in the guard band is greater than or equal to the size of the sub-channel, the remaining resource blocks and part or all of the resource blocks in the guard band form a sub-channel with the size equal to the size of the sub-channel; and if the number of the remaining resource blocks is smaller than a first threshold or the ratio of the number of the remaining resource blocks to the size of the sub-channel is smaller than a second threshold or the sum of the number of the remaining resource blocks and the number of the resource blocks included in the guard band is smaller than the size of the sub-channel, the remaining resource blocks and all the resource blocks in the guard band form a sub-channel.
Rule b11, if the ratio of the number of the remaining resource blocks to the size of the sub-channel is greater than or equal to the first threshold, and the sum of the number of the remaining resource blocks and the number of the resource blocks included in the guard band is greater than or equal to the size of the sub-channel, the remaining resource blocks and part or all of the resource blocks in the guard band form a sub-channel with the size equal to the size of the sub-channel; and if the number of the remaining resource blocks is less than or equal to a first threshold or the ratio of the number of the remaining resource blocks to the size of the sub-channel is less than a second threshold or the sum of the number of the remaining resource blocks and the number of the resource blocks included by the guard band is less than the size of the sub-channel, the remaining resource blocks do not belong to any sub-channel.
For example, for each RB set in the resource pool, or for an RB set in the resource pool without a guard band later, the first preset sub-rule comprises at least one of the following rules:
rule c1, if the number of the remaining resource blocks is greater than or equal to the first threshold, the remaining resource blocks are used as a sub-channel; and if the number of the residual resource blocks is less than the first threshold, the residual resource blocks do not belong to any sub-channel.
Rule c2, if the ratio of the number of the remaining resource blocks to the size of the sub-channel is greater than or equal to a second threshold, the remaining resource blocks are used as a sub-channel; and if the ratio of the number of the residual resource blocks to the size of the sub-channel is smaller than a second threshold, the residual resource blocks do not belong to any sub-channel.
Rule c3, the remaining resource blocks are taken as a subchannel.
And combining the rule c4, the residual resource blocks and the last sub-channel in the sub-channels with the number of sub-channels divided in sequence according to the size of the sub-channel in the RB set into one sub-channel.
Rule c5, if the number of the remaining resource blocks is greater than or equal to the first threshold and the ratio of the number of the remaining resource blocks to the size of the sub-channel is greater than or equal to the second threshold, the remaining resource blocks are used as a sub-channel; and if the number of the residual resource blocks is smaller than a first threshold or the ratio of the number of the residual resource blocks to the size of the sub-channel is smaller than a second threshold, the residual resource blocks do not belong to any sub-channel.
Rule c6, if the number of the remaining resource blocks is greater than or equal to the first threshold, the remaining resource blocks are used as a sub-channel; and if the number of the residual resource blocks is smaller than the first threshold, combining the residual resource blocks and the last sub-channel in the sub-channels with the number of the sub-channels which are divided in sequence according to the size of the sub-channels in the RB set into one sub-channel.
Rule c7, if the ratio of the number of the remaining resource blocks to the size of the sub-channel is greater than or equal to the second threshold, the remaining resource blocks are used as a sub-channel; and if the ratio of the number of the residual resource blocks to the size of the sub-channel is smaller than a second threshold, combining the residual resource blocks and the last sub-channel in the sub-channels with the number of the sub-channels divided in sequence according to the size of the sub-channel in the RB set into one sub-channel.
Rule c8, if the number of the remaining resource blocks is greater than or equal to the first threshold and the ratio of the number of the remaining resource blocks to the size of the sub-channel is greater than or equal to the second threshold, the remaining resource blocks are used as a sub-channel; if the number of the remaining resource blocks is smaller than a first threshold or the ratio of the number of the remaining resource blocks to the size of the sub-channel is smaller than a second threshold, the remaining resource blocks and the last sub-channel of the sub-channels with the number of the sub-channels divided in sequence according to the size of the sub-channel in the RB set are combined into one sub-channel.
Rule c9, the remaining resource blocks do not belong to any subchannel.
For example, for each RB set in the resource pool, the first preset sub-rule includes at least one of the following rules:
rule d1, if the number of remaining resource blocks is greater than or equal to the first threshold, the remaining resource blocks are used as a sub-channel.
Rule d2, if the number of the remaining resource blocks is greater than or equal to the first threshold and a guard band is behind the remaining resource blocks, the remaining resource blocks and all resource blocks in the guard band form a sub-channel.
Rule d3, if the number of remaining resource blocks is greater than or equal to the first threshold and there is no guard band behind the remaining resource blocks, the remaining resource blocks are used as a sub-channel.
Rule d4, if the number of remaining resource blocks is greater than or equal to the first threshold, a guard band is behind the remaining resource blocks, and the sum of the number of remaining resource blocks and the number of resource blocks included in the guard band is greater than or equal to the size of a sub-channel, the remaining resource blocks and part or all of the resource blocks in the guard band constitute a sub-channel with the size equal to the size of the sub-channel.
Rule d5, if the number of remaining resource blocks is greater than or equal to the first threshold, a guard band is behind the remaining resource blocks, and the sum of the number of remaining resource blocks and the number of resource blocks included in the guard band is smaller than the size of a sub-channel, the remaining resource blocks and all resource blocks in the guard band form a sub-channel.
Rule d6, if the number of remaining resource blocks is greater than or equal to the first threshold, the remaining resource blocks are followed by a guard band, and the sum of the number of remaining resource blocks and the number of resource blocks included in the guard band is smaller than the size of the sub-channel, the remaining resource blocks are used as a sub-channel.
Rule d7, if the number of remaining resource blocks is smaller than the first threshold, the remaining resource blocks do not belong to any sub-channel.
And d8, if the number of the residual resource blocks is smaller than the first threshold, combining the residual resource blocks and the last subchannel in the subchannels with the number of the subchannels divided in sequence according to the size of the subchannels in the RB set into one subchannel.
Rule d9, if the number of remaining resource blocks is less than the first threshold and the remaining resource blocks are followed by a guard band, the remaining resource blocks and all resource blocks in the guard band form a sub-channel.
Rule d10, if the number of remaining resource blocks is less than the first threshold and there is no guard band behind the remaining resource blocks, the remaining resource blocks do not belong to any sub-channel.
Rule d11, if the number of remaining resource blocks is smaller than the first threshold, the remaining resource blocks are followed by a guard band, and the sum of the number of remaining resource blocks and the number of resource blocks included in the guard band is greater than or equal to the size of a sub-channel, then the remaining resource blocks and part or all of the resource blocks in the guard band constitute a sub-channel with the size equal to the size of the sub-channel.
Rule d12, if the number of remaining resource blocks is less than the first threshold, a guard band is behind the remaining resource blocks, and the sum of the number of remaining resource blocks and the number of resource blocks included in the guard band is less than the size of a sub-channel, the remaining resource blocks and all resource blocks in the guard band form a sub-channel.
Rule d13, if the number of remaining resource blocks is less than the first threshold, the remaining resource blocks are followed by a guard band, and the sum of the number of remaining resource blocks and the number of resource blocks included in the guard band is less than the size of a sub-channel, then the remaining resource blocks do not belong to any sub-channel.
Rule d14, if the ratio of the number of remaining resource blocks to the size of the sub-channel is greater than or equal to the second threshold, the remaining resource blocks are used as a sub-channel.
Rule d15, if the ratio of the number of the remaining resource blocks to the size of the sub-channel is greater than or equal to the second threshold and the remaining resource blocks are followed by the guard band, the remaining resource blocks and all resource blocks in the guard band form a sub-channel.
Rule d16, if the ratio of the number of the remaining resource blocks to the size of the sub-channel is greater than or equal to the second threshold and there is no guard band behind the remaining resource blocks, the remaining resource blocks are used as a sub-channel.
Rule d17, if the ratio of the number of remaining resource blocks to the size of the sub-channel is greater than or equal to the second threshold, a guard band is behind the remaining resource blocks, and the sum of the number of remaining resource blocks and the number of resource blocks included in the guard band is greater than or equal to the size of the sub-channel, then the remaining resource blocks and some or all resource blocks in the guard band form a sub-channel with the size equal to the size of the sub-channel.
Rule d18, if the ratio of the number of remaining resource blocks to the size of the sub-channel is greater than or equal to the second threshold, a guard band is behind the remaining resource blocks, and the sum of the number of remaining resource blocks and the number of resource blocks included in the guard band is smaller than the size of the sub-channel, the remaining resource blocks and all resource blocks in the guard band form a sub-channel.
Rule d19, if the ratio of the number of remaining resource blocks to the size of the sub-channel is greater than or equal to the second threshold, the remaining resource blocks are followed by a guard band, and the sum of the number of remaining resource blocks and the number of resource blocks included in the guard band is smaller than the size of the sub-channel, the remaining resource blocks are used as a sub-channel.
Rule d20, if the ratio of the number of remaining resource blocks to the size of the sub-channel is smaller than the second threshold, the remaining resource blocks do not belong to any sub-channel.
And d21, if the ratio of the number of the residual resource blocks to the size of the sub-channel is smaller than a second threshold, combining the residual resource blocks and the last sub-channel in the sub-channel number sub-channels which are divided in sequence according to the size of the sub-channel in the RB set into one sub-channel.
Rule d22, if the ratio of the number of the remaining resource blocks to the size of the sub-channel is smaller than the second threshold and the remaining resource blocks are followed by the guard band, the remaining resource blocks and all resource blocks in the guard band form a sub-channel.
Rule d23, if the ratio of the number of the remaining resource blocks to the size of the sub-channel is smaller than the second threshold and there is no guard band behind the remaining resource blocks, the remaining resource blocks do not belong to any sub-channel.
Rule d24, if the ratio of the number of the remaining resource blocks to the size of the sub-channel is smaller than the second threshold, the remaining resource blocks are followed by a guard band, and the sum of the number of the remaining resource blocks and the number of the resource blocks included in the guard band is greater than or equal to the size of the sub-channel, then the remaining resource blocks and part or all of the resource blocks in the guard band form a sub-channel with the size equal to the size of the sub-channel.
Rule d25, if the ratio of the number of the remaining resource blocks to the size of the sub-channel is smaller than the second threshold, a guard band is behind the remaining resource blocks, and the sum of the number of the remaining resource blocks and the number of the resource blocks included in the guard band is smaller than the size of the sub-channel, the remaining resource blocks and all the resource blocks in the guard band form a sub-channel.
Rule d26, if the ratio of the number of the remaining resource blocks to the size of the sub-channel is smaller than a second threshold, the remaining resource blocks are followed by a guard band, and the sum of the number of the remaining resource blocks and the number of the resource blocks included in the guard band is smaller than the size of the sub-channel, then the remaining resource blocks do not belong to any sub-channel.
Rule d27, if the number of remaining resource blocks is greater than or equal to the first threshold and the ratio of the number of remaining resource blocks to the size of the sub-channel is greater than or equal to the second threshold, the remaining resource blocks are used as a sub-channel.
Rule d28, if the number of the remaining resource blocks is greater than or equal to the first threshold, the ratio of the number of the remaining resource blocks to the size of the sub-channel is greater than or equal to the second threshold, and a guard band is arranged behind the remaining resource blocks, then the remaining resource blocks and all resource blocks in the guard band constitute a sub-channel.
Rule d29, if the number of remaining resource blocks is greater than or equal to the first threshold, the ratio of the number of remaining resource blocks to the size of the sub-channel is greater than or equal to the second threshold, and there is no guard band behind the remaining resource blocks, then the remaining resource blocks are used as a sub-channel.
Rule d30, if the number of remaining resource blocks is greater than or equal to the first threshold, the ratio of the number of remaining resource blocks to the size of the sub-channel is greater than or equal to the second threshold, the remaining resource blocks are followed by a guard band, and the sum of the number of remaining resource blocks and the number of resource blocks included in the guard band is greater than or equal to the size of the sub-channel, then the remaining resource blocks and part or all of the resource blocks in the guard band constitute a sub-channel with the size equal to the size of the sub-channel.
Rule d31, if the number of remaining resource blocks is greater than or equal to the first threshold, the ratio of the number of remaining resource blocks to the size of the sub-channel is greater than or equal to the second threshold, a guard band is behind the remaining resource blocks, and the sum of the number of remaining resource blocks and the number of resource blocks included in the guard band is smaller than the size of the sub-channel, then the remaining resource blocks and all resource blocks in the guard band form a sub-channel.
Rule d32, if the number of remaining resource blocks is greater than or equal to the first threshold, the ratio of the number of remaining resource blocks to the size of the sub-channel is greater than or equal to the second threshold, the remaining resource blocks are followed by a guard band, and the sum of the number of remaining resource blocks and the number of resource blocks included in the guard band is smaller than the size of the sub-channel, the remaining resource blocks are used as a sub-channel.
Rule d33, if the number of remaining resource blocks is smaller than the first threshold or the ratio of the number of remaining resource blocks to the size of the sub-channel is smaller than the second threshold, the remaining resource blocks do not belong to any sub-channel.
Rule d34, if the number of remaining resource blocks is smaller than the first threshold or the ratio of the number of remaining resource blocks to the size of the sub-channel is smaller than the second threshold, the remaining resource blocks and the last sub-channel of the sub-channels with the number of sub-channels divided in sequence according to the size of the sub-channel in the RB set are merged into one sub-channel.
And d35, if the number of the remaining resource blocks is smaller than the first threshold or the ratio of the number of the remaining resource blocks to the size of the sub-channel is smaller than the second threshold and the remaining resource blocks are followed by a guard band, forming a sub-channel by the remaining resource blocks and all resource blocks in the guard band.
Rule d36, if the number of remaining resource blocks is smaller than the first threshold or the ratio of the number of remaining resource blocks to the size of the sub-channel is smaller than the second threshold, and there is no guard band behind the remaining resource blocks, the remaining resource blocks do not belong to any sub-channel.
Rule d37, if the number of remaining resource blocks is less than the first threshold or the ratio of the number of remaining resource blocks to the size of the sub-channel is less than the second threshold, and the remaining resource blocks are followed by a guard band, and the sum of the number of remaining resource blocks and the number of resource blocks included in the guard band is greater than or equal to the size of the sub-channel, then the remaining resource blocks and part or all of the resource blocks in the guard band constitute a sub-channel with the size equal to the size of the sub-channel.
Rule d38, if the number of remaining resource blocks is less than the first threshold or the ratio of the number of remaining resource blocks to the size of the sub-channel is less than the second threshold, and the remaining resource blocks are followed by a guard band and the sum of the number of remaining resource blocks and the number of resource blocks included in the guard band is less than the size of the sub-channel, the remaining resource blocks and all resource blocks in the guard band form a sub-channel.
Rule d39, if the number of remaining resource blocks is less than the first threshold or the ratio of the number of remaining resource blocks to the size of the sub-channel is less than the second threshold, and the remaining resource blocks are followed by a guard band, and the sum of the number of remaining resource blocks and the number of resource blocks included in the guard band is less than the size of the sub-channel, then the remaining resource blocks do not belong to any sub-channel.
Rule d40, if the remaining resource blocks are followed by a guard band, the remaining resource blocks and all resource blocks in the guard band constitute one sub-channel.
Rule d41, if there is no guard band behind the remaining resource blocks, the remaining resource blocks are regarded as a sub-channel.
Rule d42, if there is no guard band behind the remaining resource blocks, the remaining resource blocks do not belong to any sub-channel.
Rule d43, if the remaining resource blocks are followed by the guard band and the sum of the number of remaining resource blocks and the number of resource blocks included in the guard band is greater than or equal to the size of the sub-channel, the remaining resource blocks and part or all of the resource blocks in the guard band constitute a sub-channel with the size equal to the size of the sub-channel.
Rule d44, if the remaining resource blocks are followed by the guard band and the sum of the number of remaining resource blocks and the number of resource blocks included in the guard band is smaller than the size of the sub-channel, the remaining resource blocks and all resource blocks in the guard band constitute one sub-channel.
Rule d45, if the remaining resource blocks are followed by the guard band and the sum of the number of remaining resource blocks and the number of resource blocks included in the guard band is smaller than the size of the sub-channel, the remaining resource blocks do not belong to any sub-channel.
Rule d46, the remaining resource blocks do not belong to any sub-channel.
The above rules may be combined arbitrarily without conflict in the present application, and the present application is not limited in this embodiment.
For example, for the ith RB set of the resource pool, the sub-channel
Figure BDA0003873197430000111
From n to subCHsize Number of physical resource blocks>
Figure BDA0003873197430000112
j＝0,1,…,n subCHsize -1。
n subCHsize Is the sub-channel size, usually, for all RB sets in one resource pool, the sub-channel size is the same, that is, the sub-channel size is generally configured according to the resource pool, so that the sub-channel size in one resource pool is consistent, and this application does not exclude the case where each RB set is configured with a different sub-channel size.
Figure BDA0003873197430000113
The first RB index of the first subchannel of resource block set i in the resource pool is used to indicate the position of the first RB of the first subchannel of resource block set i in the resource pool, and the parameter in the above formula is the index of the lowest RB index relative to the SL BWP in which the resource pool is located. For each RB set in the resource pool, the higher layer entity may configure the communication node with the position of the first RB of the first subchannel of the resource block set; alternatively, the first RB of the first sub-channel of the predefined set of resource blocks is aligned with the lowest RB of the set of resource blocks, i.e., the first RB of the first sub-channel of the set of resource blocks is the lowest RB of the set of resource blocks. For an RB set, the communication node defaults to aligning the first RB of the first sub-channel of the set of resource blocks with the lowest RB of the set of resource blocks if the higher-level entity does not configure the communication node with the location of the first RB of the first sub-channel of the set of resource blocks.
Figure BDA0003873197430000114
The number of sub-channels corresponding to the resource block set i, and the resource block set i is divided into the sub-channels according to the sizes of the sub-channels from the initial resource block position of the first sub-channel of the resource block set i>
Figure BDA0003873197430000115
A plurality of contiguous and non-overlapping subchannels. The number of sub-channels corresponding to one resource block set can be provided by a higher entityFor the communication node, for example, the higher layer entity may configure the number of subchannels for each RB set in the resource pool separately; or, for a resource pool, configuring a subchannel number, which is applied to each RB set in the resource pool, that is, the number of subchannels corresponding to each RB set in the resource pool is the same and is all equal to the number of subchannels configured for the higher-level entity; or the high-level entity configures the total subchannel number T for the resource pool, the subchannel number corresponding to each RB set in the resource pool is the same and is equal to the total number of the RB sets in the resource pool divided by T, and if the total number of the RB sets in the resource pool cannot be divided completely, the subchannel number is rounded downwards; or the communication node acquires the number of sub-channels corresponding to the RB set according to the number of resource blocks and the size of the sub-channels contained in the RB set; or the communication node acquires the sub-channel number corresponding to the RB set according to the resource block number contained in the RB set, the position of the first RB of the first sub-channel of the resource block set and the size of the sub-channel.
The total number of sub-channels corresponding to resource block set i is not necessarily equal to
Figure BDA0003873197430000116
For example, can be equal to +>
Figure BDA0003873197430000117
Or is equal to +>
Figure BDA0003873197430000118
For example, one RB set includes 50 RBs, the size of each sub-channel is 15 RBs, the number of sub-channels corresponding to the RB set is obtained according to the number of resource blocks 50 included in the RB set and the size of each sub-channel 15, for example, the number of sub-channels is 50/15, and is rounded down to be equal to 3, assuming that the first RB of the first sub-channel of the RB set is aligned with the lowest RB of the RB set, therefore, 3 sub-channels with the size of 15 RBs are included in the RB set, and for the remaining 50-15 × 3=5 RBs, the corresponding sub-channels may be determined according to a first preset sub-rule. If the remaining RBs do not belong to any sub-channel or are merged into the last sub-channel of the RB set, the total number of sub-channels corresponding to the RB set in this case is 3; if the remaining RBs are used as a sub-channel or adjacentThe RBs in the guard band constitute one sub-channel, and the total number of sub-channels corresponding to the RB set is 4.
In this embodiment, the number of remaining resource blocks in one RB set may be smaller than the size of the sub-channel, or may be greater than or equal to the size of the sub-channel; one RB set may not have resource blocks left after sequentially dividing subchannels according to the subchannel size.
For one RB set in the resource pool, the number of sub-channels sequentially divided by the size of the sub-channel from the first RB position of the first sub-channel of the RB set can be configured by a higher entity. For example, one RB set includes 46 resource blocks, the size of a sub-channel is 15 RBs, the higher entity configures the communication node that the number of sub-channels corresponding to the RB set is 2, and assuming that the first RB of the first sub-channel of the RB set is aligned with the lowest RB of the RB set, 2 sub-channels are sequentially divided according to the size of the sub-channel from the first RB position of the first sub-channel of the RB set, so that the number of remaining RBs of the RB set is 46-15 × 2=16, that is, the number of remaining RBs in the RB set is greater than the size of the sub-channel.
For one RB set in the resource pool, the number of sub-channels divided in order by the size of the sub-channel from the first RB position of the first sub-channel of the RB set may be calculated by the communication node. For example, one RB set contains 46 resource blocks and the sub-channels have a size of 15 RBs, and assuming that the first RB of the first sub-channel of the RB set is aligned with the lowest RB of the RB set, the number of sub-channels with a size of 15 RBs is 46/15 rounded down, i.e., the number of sub-channels is 3, and thus the number of remaining RBs of the RB set is 46-15 × 3=1, i.e., the number of remaining RBs in the RB set is smaller than the sub-channel size.
For another example, an RB set includes 46 resource blocks, a guard band behind the RB set includes 15 RBs, the size of a sub-channel is 15 RBs, the number of sub-channels corresponding to the RB set is 4, assuming that the first RB of the first sub-channel of the RB set is aligned with the lowest RB of the RB set, the RB set and the guard band are sequentially divided into 4 sub-channels, the first 3 sub-channels are within the RB set, and the fourth sub-channel includes the last RB of the RB set and the first 14 RBs of the guard band.
In this implementation, the size of the sub-channel in the configuration information, or the size of the sub-channel in the "dividing the number of continuous and non-overlapping sub-channels according to the size of the sub-channel" in turn is the nominal size of the sub-channel, and the size of the sub-channel determined according to the first preset sub-rule may not be equal to the nominal size of the sub-channel.
Some examples are provided below to explain "sub-channels to which remaining resource blocks of RB set are determined according to a first preset sub-rule" are assigned.
Example one
In example one, the first preset sub-rule employs the rule a4-01, or the rule c1, or a combination of the rules d1 and d 7.
Fig. 2 shows a schematic diagram that determines sub-channels to which remaining resource blocks belong according to rule a4-01, rule c1, or a combination of rules d1 and d7 according to an embodiment. As shown in fig. 2, one resource pool includes two RB sets, i.e., resource block set 0 and resource block set 1, which include numbers of RBs of 47 and 45, respectively. The guard band between resource block set 0 and resource block set 1 contains 14 RBs. For each resource block set, the first RB of the first subchannel of the resource block set is aligned with the first RB of the resource block set, the size of the subchannel is 12 RBs, the first threshold is 10, and after 3 continuous and non-overlapping subchannels are sequentially divided according to the size of the subchannel 12 RBs, the remaining number of RBs of the resource block set 0 is 11, which is greater than the first threshold 10, and thus the remaining number of RBs is taken as a subchannel; the number of remaining RBs of resource block set 1 is 9, less than the first threshold, and therefore does not belong to any subchannel. Therefore, the number of the sub-channels included in the resource pool is 7, wherein resource block sets 0 and 1 respectively correspond to the first 4 sub-channels and the last 3 sub-channels, and the sizes of the sub-channels are as follows: 12,12,12,11,12,12,12.
Fig. 3 shows another schematic diagram provided in an embodiment, which uses rule a4-01, rule c1, or a combination of rules d1 and d7 to determine sub-channels to which remaining resource blocks belong. As shown in fig. 3, one resource pool includes 3 RB sets, i.e., resource block set 0, resource block set 1, and resource block set 2, with a guard band between two adjacent RB sets. For each set of RBs, the first RB of the first subchannel of the set of resource blocks is aligned with the first RB of the set of resource blocks, and the first threshold is 10. After 3 continuous and non-overlapped sub-channels are sequentially divided according to the size of the sub-channels, the number of the remaining RBs of the resource block set 0 is 1 and is smaller than a first threshold, so that the remaining RBs do not belong to any sub-channels; the number of remaining RBs of the resource block set 1 is 10, which is equal to the first threshold, so that the remaining RBs serve as a subchannel; the remaining number of RBs of resource block set 2 is 10, which is equal to the first threshold, so that the remaining RBs serve as one subchannel. Therefore, the resource pool includes a total of 11 subchannels.
Example two
In example two, the first preset sub-rule employs the above-mentioned rule a4-02, or the rule c2, or a combination of the rules d14 and d 20.
Fig. 4 shows a schematic diagram for determining sub-channels to which remaining resource blocks belong according to rule a4-02, rule c2, or a combination of rules d14 and d20 according to an embodiment. As shown in fig. 4, one resource pool includes two RB sets, i.e., resource block set 0 and resource block set 1, which include numbers of RBs of 47 and 45, respectively. The guard band between resource block set 0 and resource block set 1 contains 14 RBs. For each resource block set, the first RB of the first subchannel of the resource block set is aligned with the first RB of the resource block set, the size of the subchannel is 12 RBs, the second threshold is 0.7, and after 3 continuous and non-overlapping subchannels are sequentially divided according to the size of the subchannel, which is 12 RBs, the ratio of the number of remaining RBs of the resource block set 0 to the size of the subchannel is 11/12=0.92, which is greater than the second threshold 0.7, and thus the subchannel is used; the ratio of the number of remaining RBs of the resource block set 1 to the size of the sub-channel is 9/12=0.75, which is greater than the second threshold of 0.7, and thus the ratio is also used as a sub-channel; therefore, the resource pool contains a total of 8 sub-channels, and the sizes of the sub-channels are as follows: 12,12,12,11,12,12,12,9.
Example three
In example three, the first preset sub-rule employs the rule a1 or the rule c3. That is, for one RB set, the remaining RBs are treated as one sub-channel regardless of the number of remaining RBs.
Fig. 5 is a schematic diagram illustrating that a rule a1 or a rule c3 is adopted to determine sub-channels to which remaining resource blocks belong according to an embodiment. As shown in fig. 5, one resource pool contains two RB sets, i.e., resource block set 0 and resource block set 1. For each set of resource blocks, a first RB of a first subchannel of the set of resource blocks is aligned with a first RB of the set of resource blocks. For the resource block set 0, the resource blocks left after 3 sub-channels are sequentially divided according to the size of the sub-channels from the first RB position of the first sub-channel of the resource block set and serve as one sub-channel; for resource block set 1, the resource blocks remaining after 2 sub-channels divided in sequence by the size of the sub-channel from the first RB position of the first sub-channel of the resource block set are taken as one sub-channel. Therefore, the resource pool contains a total of 7 sub-channels.
Example four
In example four, the first preset sub-rule employs the rule a3 or the rule c4 described above.
Fig. 6 is a schematic diagram illustrating that a rule a3 or a rule c4 is adopted to determine the sub-channels to which the remaining resource blocks belong according to an embodiment. As shown in fig. 6, one resource pool includes two RB sets, i.e., resource block set 0 and resource block set 1. For each set of resource blocks, a first RB of a first subchannel of the set of resource blocks is aligned with a first RB of the set of resource blocks. For the resource block set 0, after 3 sub-channels are sequentially divided according to the size of the sub-channel from the first RB position of the first sub-channel of the resource block set, the remaining resource blocks are merged into the last sub-channel divided according to the size of the sub-channel, that is, the size of the last sub-channel is the sum of the size of the configured sub-channel and the remaining resource blocks of the resource block set. Similarly, the remaining resource blocks of resource block set 1 are also merged into the last subchannel divided by subchannel size starting from the first RB position of the first subchannel of the resource block set. Therefore, the resource pool includes a total of 6 subchannels.
Example five
In example five, the first preset sub-rule employs the above rule a4-03 or a combination of the rules d40 and d 41.
Fig. 7 is a schematic diagram illustrating an embodiment of determining sub-channels to which remaining resource blocks belong according to rules a4-03 or a combination of rules d40 and d 41. As shown in fig. 7, one resource pool includes two RB sets, i.e., resource block set 0 and resource block set 1, which include 46 RB numbers. The guard band between resource block set 0 and resource block set 1 contains 14 RBs. For each resource block set, aligning a first RB of a first sub-channel of the resource block set with a first RB of the resource block set, wherein the size of the sub-channel is 12 RBs, after sequentially dividing 3 continuous and non-overlapped sub-channels according to the size of the sub-channel, the residual RB number of a resource block set 0 is 10, and forming a sub-channel with a subsequent guard band; the remaining number of RBs of resource block set 1 is 10, and the remaining RBs serve as one subchannel. Therefore, the resource pool contains a total of 8 sub-channels, and the sizes of the sub-channels are as follows: 12,12,12,24,12,12,12,10.
Example six
In example six, the first preset sub-rule employs the above rule a4-04, or a combination of the rules d41, d43, and d 44.
Fig. 8 is a schematic diagram illustrating an embodiment of determining sub-channels to which remaining resource blocks belong according to rules a4-04 or a combination of rules d41, d43, and d 44. As shown in fig. 8, one resource pool includes 3 RB sets, i.e., resource block set 0, resource block set 1, and resource block set 2. For each set of resource blocks, a first RB of a first subchannel of the set of resource blocks is aligned with a first RB of the set of resource blocks. For the resource block set 0, after 3 sub-channels are sequentially divided according to the size of the sub-channels from the first RB position of the first sub-channel of the resource block set, the sum of the number of the remaining resource blocks and the number of the resource blocks contained in a guard band is larger than the size of the sub-channels, and the remaining resource blocks and part of the resource blocks in the guard band form a sub-channel with the size equal to the size of the sub-channels; for the resource block set 1, after 3 sub-channels are sequentially divided according to the size of the sub-channel from the first RB position of the first sub-channel of the resource block set, the sum of the number of the residual resource blocks and the number of the resource blocks contained in a guard band is smaller than or equal to the size of the sub-channel, and the residual resource blocks and all the resource blocks in the guard band form one sub-channel; for resource block set 2, after 3 sub-channels are sequentially divided according to the size of the sub-channel from the first RB position of the first sub-channel of the resource block set, the remaining resource blocks are used as one sub-channel. Therefore, the resource pool includes a total of 12 sub-channels.
Example seven
In example seven, the first preset sub-rule employs the above rule a4-08, or a combination of the rules d3, d4, d5, and d 7.
Fig. 9 is a schematic diagram illustrating an embodiment of determining sub-channels to which remaining resource blocks belong according to rules a4-08 or a combination of rules d3, d4, d5, and d 7. As shown in fig. 9, one resource pool contains 3 RB sets, i.e., resource block set 0, resource block set 1, and resource block set 2. For each set of resource blocks, a first RB of a first subchannel of the set of resource blocks is aligned with a first RB of the set of resource blocks. For the resource block set 0, after 3 sub-channels are sequentially divided according to the size of the sub-channel from the first RB position of the first sub-channel of the resource block set, the number of the remaining resource blocks is smaller than a first threshold, and the remaining resource blocks do not belong to any sub-channel; for the resource block set 1, after 3 sub-channels are sequentially divided according to the size of the sub-channels from the first RB position of the first sub-channel of the resource block set, the number of the remaining resource blocks is larger than or equal to a first threshold, the sum of the number of the remaining resource blocks and the number of the resource blocks contained in a guard band is smaller than or equal to the size of the sub-channels, and the remaining resource blocks and all the resource blocks in the guard band form one sub-channel; for the resource block set 2, after 3 sub-channels are sequentially divided according to the size of the sub-channel from the first RB position of the first sub-channel of the resource block set, the number of the remaining resource blocks is larger than or equal to a first threshold, no guard band is arranged behind the remaining resource blocks, and the remaining resource blocks are used as one sub-channel. Therefore, the resource pool includes a total of 11 subchannels.
Example eight
In example eight, the first preset sub-rule employs the above-mentioned rules a4-09, or a combination of the rules d16, d17, d18, and d 20.
Fig. 10 is a schematic diagram illustrating an embodiment of determining sub-channels to which remaining resource blocks belong according to rules a4-09 or a combination of rules d16, d17, d18, and d 20. As shown in fig. 10, one resource pool contains 3 RB sets, i.e., resource block set 0, resource block set 1, and resource block set 2. For each set of resource blocks, a first RB of a first subchannel of the set of resource blocks is aligned with a first RB of the set of resource blocks. For the resource block set 0, after 3 sub-channels are sequentially divided according to the size of the sub-channel from the first RB position of the first sub-channel of the resource block set, the ratio of the number of the remaining resource blocks to the size of the sub-channel is smaller than a second threshold, and the remaining resource blocks do not belong to any sub-channel; for the resource block set 1, after 3 sub-channels are sequentially divided according to the size of the sub-channel from the first RB position of the first sub-channel of the resource block set, the ratio of the number of the remaining resource blocks to the size of the sub-channel is smaller than a second threshold, and the remaining resource blocks do not belong to any sub-channel; for the resource block set 2, after 3 sub-channels are sequentially divided according to the size of the sub-channel from the first RB position of the first sub-channel of the resource block set, the ratio of the number of the remaining resource blocks to the size of the sub-channel is greater than or equal to a second threshold, no guard band is arranged behind the remaining resource blocks, and the remaining resource blocks are used as one sub-channel. The resource pool includes a total of 10 subchannels.
Example nine
In example nine, the first preset sub-rule employs the above-mentioned rules a4-10, or the rule c6, or a combination of the rules d1 and d 8.
Fig. 11 shows a schematic diagram for determining sub-channels to which remaining resource blocks belong according to rules a4-10, or rule c6, or a combination of rules d1 and d8 according to an embodiment. As shown in fig. 11, one resource pool contains 3 RB sets, i.e., resource block set 0, resource block set 1, and resource block set 2. For each set of resource blocks, a first RB of a first subchannel of the set of resource blocks is aligned with a first RB of the set of resource blocks. Assuming that the first threshold is 10, for the resource block set 0, after 3 sub-channels are sequentially divided according to the size of the sub-channel from the first RB position of the first sub-channel of the resource block set, 1 RB is left in the resource block set 0 and is smaller than the first threshold, so that the remaining resource block and the last sub-channel in the sub-channels with the number of sub-channels sequentially divided according to the size of the sub-channel in the resource block set 0 are combined into one sub-channel; for resource block sets 1 and 2, after 3 sub-channels are sequentially divided according to the size of the sub-channel from the first RB position of the first sub-channel of the resource block set, 10 RBs are remained and equal to a first threshold, so that the remained RBs in the resource block sets 1 and 2 are respectively used as one sub-channel. Therefore, the resource pool includes a total of 11 subchannels.
Example ten
In example ten, the first preset sub-rule employs the above-described rules a4-11, or the rule c7, or a combination of the rules d14 and d 21.
Fig. 12 is a schematic diagram illustrating an embodiment of determining sub-channels to which remaining resource blocks belong according to rules a4-11, or rule c7, or a combination of rules d14 and d 21. As shown in fig. 12, one resource pool contains 3 RB sets, i.e., resource block set 0, resource block set 1, and resource block set 2. For each set of resource blocks, a first RB of a first subchannel of the set of resource blocks is aligned with a first RB of the set of resource blocks. Assuming that the size of the sub-channel is 12 RBs, the second threshold is 0.8, for the resource block set 0, after 3 sub-channels are sequentially divided according to the size of the sub-channel from the first RB position of the first sub-channel of the resource block set, the resource block set 0 remains 1 RB, and the ratio of the number of the remaining RBs to the size of the sub-channel is 1/12=0.08, which is smaller than the second threshold, so that the remaining resource block and the last sub-channel in the sub-channel number sub-channels sequentially divided according to the size of the sub-channel in the resource block set 0 are combined into one sub-channel; for resource block sets 1 and 2, after 3 sub-channels are sequentially divided according to the size of the sub-channel from the first RB position of the first sub-channel of the resource block set, 10 RBs are remained, and the ratio of the number of the remained RBs to the size of the sub-channel is 10/12=0.83 and is greater than the second threshold, so the remained RBs in the resource block sets 1 and 2 are respectively used as one sub-channel. Therefore, the resource pool includes a total of 11 subchannels.
Example eleven
In all of the above examples one to ten, the method for determining the sub-channel to which the remaining resource blocks belong is described by taking the example that the first RB of the first sub-channel of the resource block set is aligned with the first RB of the resource block set. All of the above examples still apply when the first RB of the first subchannel of the set of resource blocks is not aligned with the lowest RB of the set of resource blocks. For one RB set, the subchannels are still divided in order by subchannel size starting from the position of the first RB of the first subchannel of the resource block set, so if the first RB of the first subchannel of one resource block set is offset by X RBs from the lowest RB of the resource block set, and X is not 0, then the first X RBs of the resource block set do not belong to any subchannel.
In example eleven, the first preset sub-rule employs the above-described rule a4-01, or the rule c1, or a combination of the rules d1 and d 7.
Fig. 13 is a schematic diagram illustrating that a sub-channel to which the remaining resource block belongs is determined according to rule a4-01, rule c1, or a combination of rules d1 and d7 according to an embodiment. As shown in fig. 13, one resource pool includes two RB sets, i.e., resource block set 0 and resource block set 1, which include numbers of RBs of 47 and 45, respectively. The guard band between resource block set 0 and resource block set 1 contains 14 RBs, the subchannel size is 12 RBs, and the first threshold is 10. The position of the first RB of the first subchannel of the resource block set 0 is shifted by 1 RB from the lowest RB of the resource block set, after 3 consecutive and non-overlapping subchannels are sequentially divided by 12 RBs according to the size of the subchannel from the position of the first RB of the first subchannel of the resource block set 0, the remaining RB number of the resource block set 0 is 47-12 × 3-1=10 and is equal to the first threshold 10, and thus the subchannel is obtained; the first RB of the resource block set 1 is shifted by 0 RB from the lowest RB of the resource block set (i.e., aligned with the lowest RB of the resource block set), and after 3 consecutive and non-overlapping subchannels are sequentially divided by 12 RBs according to the subchannel size, the number of remaining RBs of the resource block set 1 is 45-12 × 3=9, which is smaller than the first threshold, and thus does not belong to any subchannel. Therefore, the number of the sub-channels included in the resource pool is 7, wherein resource block sets 0 and 1 respectively correspond to the first 4 sub-channels and the last 3 sub-channels, and the sizes of the sub-channels are as follows: 12,12,12,10,12,12,12.
In the eleven examples described above, for the remaining resource blocks in the set of resource blocks without guard bands behind, the sub-channel to which they belong is also determined according to the rule. In this application, it may also be configured or predefined, and the remaining resource blocks in the following resource block set without the guard band do not belong to any sub-channel, and specific examples may refer to the above examples, and the above examples may be modified appropriately, for example, the remaining resource blocks in the last resource block set do not belong to any sub-channel.
The eleven examples above only give examples of determining the sub-channels to which the remaining resource blocks of RB sets belong according to a partial rule, and a method of determining the sub-channels to which the remaining resource blocks of RB sets belong according to other rules or a combination of rules may also adopt a method similar to the eleven examples above, and are not listed here.
In a second possible implementation manner, the configuration information is configuration information of a sub-channel corresponding to the resource pool, the configuration information includes at least one of a starting resource block position of the first sub-channel, a size of the sub-channel, and a number of the sub-channels, and the preset rule includes a second preset sub-rule.
The method for the communication node to determine the sub-channels included in the resource pool comprises the following steps: if the resource pool comprises at least two RB sets, sequentially dividing a plurality of continuous and non-overlapped sub-channels according to the size of the sub-channels from the initial resource block position of a first sub-channel of the resource pool; according to a second preset sub-rule, removing the divided sub-channels; the resource pool includes subchannels that are made up of all of the remaining subchannels.
For example, the second preset sub-rule includes at least one of:
rule e1, if the sub-channel does not cross RB set and the number of resource blocks included in RB set in the sub-channel is less than a third threshold, then the sub-channel is excluded.
Rule e2, if the sub-channel spans two RB sets and the number of resource blocks included in the two RB sets in the sub-channel is less than the fourth threshold, excluding the sub-channel.
Rule e3, if the sub-channel does not cross the RB set and the ratio of the number of resource blocks contained in the RB set in the sub-channel to the size of the sub-channel is less than a fifth threshold, excluding the sub-channel.
Rule e4, if the sub-channel spans two RB sets and the ratio of the number of resource blocks included in the two RB sets in the sub-channel to the size of the sub-channel is less than the sixth threshold, the sub-channel is excluded.
Rule e5, if the sub-channel does not cross the RB set, the number of resource blocks included in the RB set in the sub-channel is less than the third threshold, and the ratio of the number of resource blocks included in the RB set in the sub-channel to the size of the sub-channel is less than the fifth threshold, excluding the sub-channel.
Rule e6, if the sub-channel spans two RB sets, the number of resource blocks contained in the two RB sets in the sub-channel is less than a fourth threshold, and the ratio of the number of resource blocks contained in the two RB sets in the sub-channel to the size of the sub-channel is less than a sixth threshold, excluding the sub-channel.
Rule e7, if the sub-channel spans two RB sets, the number of resource blocks included in the two RB sets in the sub-channel is less than the third threshold, and the ratio of the number of resource blocks included in the two RB sets in the sub-channel to the size of the sub-channel is less than the fifth threshold, then the sub-channel is excluded.
Rule e8, if a subchannel spans two sets of RBs, then that subchannel is excluded.
The above rules may be arbitrarily combined without conflict in the present application, for example, a combination of rules e1 and e3, a combination of rules e2 and e4, and the like, which is not specifically limited in the embodiments of the present application.
For example, for one resource pool, subchannels m =0,1, …, n numSub -1, from n subCHsize Number n of physical resource blocks PRB ＝n subCHRBstart +m·n subCHsize +j，j＝0,1,…,n subCHsize -1。
n subCHsize Is the subchannel size, which is generally the same for all sets of RBs in a resource pool, i.e., the subchannel size is the sameThe subchannel sizes are typically configured in resource pools such that the subchannel sizes are consistent within a resource pool.
n subCHRBstart Is the first RB index of the first sub-channel of the resource pool for indicating the location of the first RB of the first sub-channel of the resource pool, and the parameter in the above formula is the index of the lowest RB index with respect to the SL BWP in which the resource pool is located. The higher layer entity may configure the communication node with a location of a first RB of a first subchannel of the resource pool; alternatively, the first RB of the first sub-channel of the predefined resource pool is aligned with the lowest RB of the resource pool. For a resource pool, if the higher-level entity does not configure the communication node with the location of the first RB of the first sub-channel of the resource pool, the communication node defaults to align the first RB of the first sub-channel of the resource pool with the lowest RB of the resource pool.
n numSub The number of sub-channels corresponding to the resource pool, for a resource pool, n is divided in sequence according to the size of the sub-channels from the initial resource block position of the first sub-channel of the resource pool numSub A plurality of contiguous and non-overlapping subchannels. The number of sub-channels corresponding to a resource pool can be provided to the communication node by a higher-level entity; or, the communication node obtains the number of sub-channels corresponding to the resource pool according to the number of resource blocks and the size of the sub-channels contained in the resource pool; or the communication node obtains the number of the sub-channels corresponding to the resource pool according to the number of the resource blocks contained in the resource pool, the position of the first RB of the first sub-channel of the resource pool and the size of the sub-channel.
The total number of sub-channels corresponding to the resource pool is not necessarily equal to n numSub For example, n may be less than or equal to numSub But may also be equal to n numSub +1. For example, one resource pool contains two sets of RBs, each set of resource blocks contains 105 RBs, and the guard band between the two sets of resource blocks is 6 RBs, i.e., the resource pool contains 216 RBs, and the subchannel size is 20 RBs. Assuming that the first RB of the first sub-channel of the resource pool is aligned with the lowest RB of the resource block pool, the higher-level entity configures the number n of sub-channels of the resource pool numSub Equal to 10, the resource pool is divided into 10 with the size of 20After the sub-channel of the RB, 16 RBs remain in the resource pool. Assuming that the remaining 16 RBs in the resource pool do not belong to any sub-channel and some sub-channels may be excluded according to the rule of exclusion of sub-channels, the resource pool includes sub-channels with the number less than or equal to n numSub A plurality of; assuming that the remaining 16 RBs in the resource pool are used as a sub-channel and any sub-channel is not excluded according to the rule of excluding the sub-channel, the number of sub-channels included in the resource pool is n numSub +1.
In this implementation manner, the remaining resource blocks in the resource pool are the resource blocks remaining at the end position of the resource pool after the initial resource block position of the first sub-channel corresponding to the resource pool is started, and the number of continuous and non-overlapping sub-channels is sequentially divided according to the size of the sub-channel.
The number of remaining resource blocks in one resource pool may be smaller than the size of the sub-channel, or may be greater than or equal to the size of the sub-channel.
In this implementation, the size of the sub-channel in the configuration information, or the size of the sub-channel in the "continuous and non-overlapping sub-channels with sub-channels divided in sequence according to the size of the sub-channel" is a nominal size of the sub-channel, if the remaining resource block in the resource pool also belongs to one sub-channel, or the remaining resource block and the last sub-channel in the continuous and non-overlapping sub-channels with sub-channels divided in sequence according to the size of the sub-channel in the resource pool are merged into one sub-channel, the size of the sub-channel is usually not equal to the size of the nominal sub-channel, and certainly, the remaining resource block in the resource pool may not belong to any sub-channel, and at this time, all sub-channels in the resource pool are equal in size.
Examples are provided below to explain "excluding process for divided sub-channels according to a second preset sub-rule".
Example twelve
In example twelve, the second preset sub-rule employs a combination of the above-described rules e1 and e 2.
Fig. 14 is a schematic diagram illustrating an embodiment of excluding divided sub-channels by using a combination of rules e1 and e 2. As shown in fig. 14, one resource pool includes 3 RB sets, i.e., resource block sets 0,1 and 2, and between adjacent resource block sets are guard bands 0 and 1, respectively. Assuming that the third threshold is 8 and the fourth threshold is 8, the sub-channels containing the resources in the guard band are sub-channel n and sub-channel m (m > n), respectively; the sub-channel n does not cross the resource block set, the number of the resource blocks contained in the resource block set 0 in the sub-channel n is 3, and is less than a third threshold 8, so the sub-channel n is excluded; subchannel m spans resource block sets 1 and 2, the number of resource blocks in subchannel m contained in resource block set 1 and resource block set 2 is 9 and 1, respectively, since only 1 is smaller than the fourth threshold 8, and 9 is larger than the fourth threshold 8, subchannel m is not excluded.
Example thirteen
In example thirteen, the second preset sub-rule employs a combination of the above-described rules e3 and e 4.
Fig. 15 is a schematic diagram illustrating an embodiment of excluding divided sub-channels according to a combination of rules e3 and e 4. As shown in fig. 15, one resource pool includes 3 RB sets, i.e., resource block sets 0,1 and 2, and there are guard bands 0 and 1 between adjacent resource block sets, respectively. Assuming that the size of a sub-channel is 12, the fifth threshold is 0.8, the sixth threshold is 0.8, and the sub-channels including the resource blocks in the guard band are sub-channel n and sub-channel m (m > n), respectively; the sub-channel n does not cross the resource block set, the number of the resource blocks contained in the resource block set 0 in the sub-channel n is 3, the ratio of the number of the resource blocks to the size of the sub-channel n is 3/12=0.25, and the ratio is smaller than a fifth threshold of 0.8, so the sub-channel n is excluded; the sub-channel m spans the resource block sets 1 and 2, the number of resource blocks contained in the resource block set 1 and the resource block set 2 in the sub-channel m is 9 and 1 respectively, the ratio of the number of the resource blocks to the size of the sub-channel is 9/12=0.75 and 1/12=0.08 respectively, and the sub-channel m is also excluded because 0.75 and 0.08 are both smaller than the sixth threshold 0.8.
The two examples (example twelve and example thirteen) only give examples of determining the sub-channels included in the resource pool according to a part of rules, and a method of determining the sub-channels included in the resource pool according to other rules or a combination of rules may also adopt a method similar to the two examples, which are not listed here.
In the implementation mode, a method for determining sub-channels corresponding to the remaining resource blocks in the resource pool is provided. In an embodiment, the method for determining the sub-channels corresponding to the remaining resource blocks in the resource pool may adopt the method for determining the sub-channels corresponding to the remaining resource blocks in the resource block set in the above example, and replace the resource block set with the resource pool; alternatively, the protocol provides that the remaining resource blocks in the resource pool do not belong to any sub-channel, or that the communication node does not desire to use the remaining resource blocks in the resource pool.
In a third possible implementation manner, the configuration information is configuration information of a sub-channel corresponding to each RB set in the resource pool, the configuration information includes at least one of a starting resource block position of the first sub-channel, a size of the sub-channel, and a number of the sub-channels, and the preset rule includes a third preset sub-rule.
The method for the communication node to determine the sub-channels included in the resource pool comprises the following steps: for any RB set in the resource pool, sequentially dividing a plurality of continuous and non-overlapped sub-channels of the number of the sub-channels according to the size of the sub-channels from the initial resource block position of the first sub-channel of the RB set; according to a third preset sub-rule, removing the divided sub-channels; the resource pool includes subchannels consisting of the remaining subchannels of all sets of RBs in the resource pool.
As an example, the third preset sub-rule includes at least one of:
rule f1, if the number of resource blocks included in RB set in a subchannel is less than the seventh threshold, excluding the subchannel.
Rule f2, if the ratio of the number of resource blocks included in RB set in the sub-channel to the size of the sub-channel is less than the eighth threshold, the sub-channel is excluded.
Rule f3, if a sub-channel overlaps with the next RB set or overlaps with the first sub-channel of the next RB set, the sub-channel is excluded.
The above rules may be arbitrarily combined without conflict in the present application, for example, a combination of rules f1 and f2, a combination of rules f1 and f3, a combination of rules f2 and f3, and a combination of rules f1, f2, and f3, which are not specifically limited in this application.
In this implementation, in general, the subchannel sizes are the same for all RB sets in one resource pool, that is, the subchannel sizes are generally configured according to the resource pool, so that the subchannel sizes in one resource pool are consistent, and this application does not exclude that each RB set configures a different subchannel size.
In this implementation, for each RB set in the resource pool, the higher layer entity may configure the communication node with the position of the first RB of the first subchannel of the resource block set; alternatively, the first RB of the first subchannel of the predefined set of resource blocks is aligned with the lowest RB of the set of resource blocks. For an RB set, the communication node defaults to aligning the first RB of the first sub-channel of the set of resource blocks with the lowest RB of the set of resource blocks if the higher-level entity does not configure the communication node with the location of the first RB of the first sub-channel of the set of resource blocks.
In this implementation, for each RB set in the resource pool, the higher-level entity may configure the number of subchannels for the communication node; or, if the RB set is followed by a guard band, the number of sub-channels is calculated from the bandwidth of a sub-band consisting of the resource block set and the guard band following the resource block set and the size of the sub-channels, and if the RB set is followed by no guard band, the number of sub-channels is calculated from the bandwidth of the resource block set and the size of the sub-channels. For example, the method for calculating the number of subchannels according to the bandwidth and the size of the subchannel may be that, assuming that the bandwidth includes BW resource blocks, and the size of the subchannel is S resource blocks, the number of subchannels is: BW is divided by S and then rounded down.
Examples are provided below to explain "excluding process for divided sub-channels according to a third preset sub-rule".
Example fourteen
In example fourteen, the third preset sub-rule employs the rule f1 described above.
Fig. 16 is a schematic diagram illustrating an excluding process for divided sub-channels according to an embodiment, where the rule f1 or the rule f2 is used. As shown in fig. 16, one resource pool contains 3 RB sets, i.e. resource block sets 0,1 and 2, with guard bands 0 and 1 between adjacent resource block sets, respectively. Assuming that the size of the sub-channel is 15, the seventh threshold is 10, and the sub-channels containing the resource blocks in the guard band are sub-channel n and sub-channel m (m > n), respectively; the number of resource blocks included in resource block set 0 in subchannel n is 10, which is equal to the seventh threshold 10, so that subchannel n is not excluded; the number of resource blocks in subchannel m contained in resource block set 1 is 2, which is smaller than the seventh threshold 10, so that subchannel m is excluded.
Example fifteen
In example fifteen, the third preset sub-rule employs the rule f2 described above.
With continued reference to fig. 16, one resource pool contains 3 sets of RBs, i.e., resource block sets 0,1 and 2, with guard bands 0 and 1 between adjacent resource block sets, respectively. Assuming that the size of the sub-channel is 15, the eighth threshold is 0.6, and the sub-channels including the resource blocks in the guard band are sub-channel n and sub-channel m (m > n), respectively; the number of resource blocks included in the resource block set 0 in the subchannel n is 10, the ratio of the number of resource blocks to the size of the subchannel is 10/15=0.66, and is greater than the eighth threshold 0.6, so that the subchannel n is not excluded; the number of resource blocks included in resource block set 1 in subchannel m is 2, the ratio of the number of resource blocks to the size of the subchannel is 2/15=0.13, and is smaller than the eighth threshold 0.6, so that subchannel m is excluded.
Example sixteen
In example sixteen, the third preset sub-rule employs the rule f3 described above.
Fig. 17 is a diagram illustrating an excluding process for divided sub-channels by using a rule f3 according to an embodiment. As shown in fig. 17, one resource pool contains 2 RB sets, i.e., resource block sets 0 and 1, and the last subchannel (i.e., subchannel n) of resource block set 0 overlaps with the first subchannel of the next resource block set, so subchannel n is excluded.
In a fourth possible implementation manner, the configuration information is configuration information of a sub-channel corresponding to the resource pool, and the configuration information includes at least one of a starting resource block position of the first sub-channel, a size of the sub-channel, and a number of the sub-channels.
The method for the communication node to determine the sub-channels included in the resource pool comprises the following steps: if the resource pool comprises one RB set, sequentially dividing a plurality of continuous and non-overlapped sub-channels according to the size of the sub-channels from the initial resource block position of a first sub-channel of the resource pool; the resource pool includes subchannels composed of all the divided subchannels.
In an embodiment, if there are remaining resource blocks after the resource pool is divided into subchannels of the number of subchannels, the method may further determine the subchannels to which the remaining resource blocks belong, where the specific method includes at least one of the following:
if the number of the remaining resource blocks is greater than or equal to the third threshold, the remaining resource blocks are used as a sub-channel, and the resource pool further comprises the sub-channel;
if the ratio of the number of the remaining resource blocks to the size of the sub-channel is greater than or equal to a fifth threshold, the remaining resource blocks are used as the sub-channel, and the resource pool also comprises the sub-channel;
if the number of the remaining resource blocks is greater than or equal to the third threshold and the ratio of the number of the remaining resource blocks to the size of the sub-channel is greater than or equal to the fifth threshold, the remaining resource blocks are used as the sub-channel, and the resource pool also comprises the sub-channel;
if the number of the residual resource blocks is smaller than a third threshold, combining the residual resource blocks and the last sub-channel in the sub-channels with the sub-channels number divided in sequence according to the size of the sub-channels into one sub-channel;
if the ratio of the number of the residual resource blocks to the size of the sub-channel is smaller than a fifth threshold, combining the residual resource blocks and the last sub-channel in the sub-channels with the number of the sub-channels divided in sequence according to the size of the sub-channel into a sub-channel;
the remaining resource blocks do not belong to any sub-channel.
In a fifth possible implementation manner, the configuration information is configuration information of a sub-channel corresponding to each RB set in the resource pool, and the configuration information includes at least one of a starting resource block position of the first sub-channel, a size of the sub-channel, and a number of the sub-channels.
The method for the communication node to determine the sub-channels included in the resource pool comprises the following steps: for any RB set in the resource pool, sequentially dividing a plurality of continuous and non-overlapped sub-channels according to the size of the sub-channels from the initial resource block position of a first sub-channel of the RB set; the sub-channels included in the resource pool are composed of sub-channels corresponding to all RB sets in the resource pool.
In one embodiment, for an RB set followed by a guard band, the end position of the last sub-channel corresponding to the RB set is at or before the end position of the guard band; for an RB set followed by no guard band, the end position of the last sub-channel corresponding to the RB set is at or before the end position of the RB set.
Fig. 18 is a diagram illustrating a sub-channel division according to an embodiment. As shown in FIG. 18, one resource pool contains two sets of RBs, resource block sets 0 and 1, for each resource block set, the first RB of the first sub-channel of the resource block set is aligned with the first RB of the resource block set. For the resource block set 0, n +1 sub-channels are sequentially divided according to the size of the sub-channels from the first RB position of the first sub-channel of the resource block set; for resource block set 1, N-N-1 sub-channels are sequentially divided according to the size of the sub-channels from the first RB position of the first sub-channel of the resource block set. The resource pool contains N subchannels in total.
In this implementation manner, the determination manner of the size of the sub-channel, the position of the first RB of the first sub-channel of the resource block set, and the number of sub-channels is the same as that in the foregoing embodiment, and is not described herein again.
In a sixth possible implementation manner, a method for how to perform SL frequency domain resource allocation or frequency domain resource selection based on subchannels included in the resource pool and how to determine frequency domain resources actually used for SL transmission is given.
In an embodiment, the subchannels included in the resource pool are sequentially numbered from low to high according to frequency to obtain a logical index of a subchannel, and for an SL transmission, the frequency domain resource allocated to the SL transmission is indicated by indicating the logical index of consecutive L subchannels (for example, indicating an initial subchannel and the number of consecutive subchannels starting from the initial subchannel).
If a SL transmission is allocated with consecutive L subchannels that do not span the set of resource blocks (i.e., the L subchannels are contained within a set of resource blocks, or within a set of resource blocks and a guard band following the set of resource blocks), the SL transmission can only use the resource blocks of the L subchannels that are contained in the set of resource blocks. I.e., the resource blocks contained in the guard band among the L subchannels cannot be used. Further, for resource blocks included in a guard band in L sub-channels, SL transmission needs to perform rate matching on the resource blocks included in the guard band in the L sub-channels, or the SL transmission performs puncturing on the resource blocks included in the guard band in the L sub-channels.
If a SL transmission is assigned consecutive L subchannels across at least two adjacent sets of resource blocks (i.e., the L subchannels include resource blocks in the at least two adjacent sets of resource blocks), then the SL transmission may use resource blocks in the L subchannels that are included in the sets of resource blocks, as well as resource blocks within the guard band between the adjacent sets of resource blocks. Further, for the resource blocks that cannot be used in the L subchannels, SL transmission needs to be rate matched or punctured.
In a seventh possible implementation manner, when the higher entity indicates that the resource block continuous edge link transmission is enabled, the communication node adopts the subchannel determining method in the present application. The granularity of the indication may be carrier, or BWP, or resource pool. For example, if the higher layer entity indicates that one carrier enables the edge link transmission of resource block continuity, the communication node adopts the subchannel determination method in the present application for all resource pools in all BWPs on the carrier. For another example, if the higher-level entity indicates that a BWP enables continuous edge link transmission of resource blocks, the subchannel determination method in the present application is adopted for all resource pool communication nodes in the BWP, and for another example, if the higher-level entity indicates that a resource pool enables continuous edge link transmission of resource blocks, the subchannel determination method in the present application is adopted for the resource pool communication nodes.
In an eighth possible implementation manner, when the higher layer entity does not indicate that the edge link transmission using interleaving (interlace) is enabled, the communication node adopts the subchannel determining method in the present application. The granularity of the indication may be carrier or BWP, or resource pool. For example, if the higher layer entity does not indicate that a carrier enables sidelink transmission using interleaving, the communication node adopts the subchannel determining method in the present application for all resource pools in all BWPs on the carrier. For another example, if the higher layer entity does not indicate that one BWP enables interleaved edge link transmission, the subchannel determination method in the present application is applied to all resource pool communication nodes in the BWP.
Fig. 19 is a schematic structural diagram illustrating an apparatus for determining a sub-channel according to an embodiment, where the apparatus may be configured in a communication node, as shown in fig. 19, the apparatus includes: an acquisition module 200 and a determination module 210.
An obtaining module 200 configured to determine configuration information, where the configuration information includes at least one of a starting resource block position of a first sub-channel, a size of the sub-channel, and a number of the sub-channels;
the determining module 210 is configured to determine the sub-channels included in the resource pool according to a preset rule and configuration information.
The apparatus for determining a sub-channel provided in this embodiment is a method for determining a sub-channel implemented in the foregoing embodiment, and the implementation principle and technical effect of the apparatus for determining a sub-channel provided in this embodiment are similar to those of the foregoing embodiment, and are not described herein again.
In an embodiment, the configuration information is configuration information of a sub-channel corresponding to each resource block set RB set in the resource pool, the configuration information includes at least one of a starting resource block position of a first sub-channel, a size of the sub-channel, and a number of the sub-channels, and the preset rule includes a first preset sub-rule;
the determining module 210 is configured to, for any RB set in the resource pool, sequentially divide a number of continuous and non-overlapping subchannels, which are the number of subchannels, according to the size of the subchannels, starting from the starting resource block position of the first subchannel of the RB set; determining sub-channels to which the remaining resource blocks of the RB set belong according to a first preset sub-rule; the sub-channels included in the resource pool are composed of sub-channels corresponding to all RB sets in the resource pool.
In an embodiment, the remaining resource blocks of the RB set are the resource blocks remaining at the end position of the RB set after sequentially dividing the number of continuous and non-overlapping sub-channels according to the size of the sub-channels from the start resource block position of the first sub-channel of the RB set.
In an embodiment, the first preset sub-rule comprises any one of:
the rest resource blocks are used as a subchannel;
the remaining resource blocks do not belong to any sub-channel;
combining the remaining resource blocks and the last sub-channel in the sub-channels with the number of sub-channels divided in sequence according to the size of the sub-channel in the RB set into one sub-channel;
and determining the sub-channel to which the residual resource block belongs according to at least one of the size relationship between the number of the residual resource blocks and the first threshold, the size relationship between the ratio of the number of the residual resource blocks to the size of the sub-channel and the second threshold, and whether a guard band exists behind the residual resource blocks.
In an embodiment, the sub-channels to which the remaining resource blocks belong are determined according to at least one of a size relationship between the number of the remaining resource blocks and a first threshold, a size relationship between a ratio of the number of the remaining resource blocks to the size of the sub-channels and a second threshold, and whether a guard band exists behind the remaining resource blocks, including at least one of the following:
the number of the residual resource blocks is larger than or equal to a first threshold, and the residual resource blocks are used as a sub-channel; the number of the residual resource blocks is smaller than a first threshold, and the residual resource blocks do not belong to any sub-channel;
the ratio of the number of the residual resource blocks to the size of the sub-channel is greater than or equal to a second threshold, and the residual resource blocks are used as a sub-channel; the ratio of the number of the residual resource blocks to the size of the sub-channel is smaller than a second threshold, and the residual resource blocks do not belong to any sub-channel;
a protective band is arranged behind the residual resource blocks, and the residual resource blocks and all the resource blocks in the protective band form a sub-channel; a protective band is not arranged behind the rest resource blocks, and the rest resource blocks are used as a sub-channel;
a protection band is arranged behind the residual resource blocks, the sum of the number of the residual resource blocks and the number of the resource blocks contained in the protection band is larger than the size of the sub-channel, and the residual resource blocks and part of resource blocks in the protection band form the sub-channel with the size equal to the size of the sub-channel; a guard band is arranged behind the residual resource blocks, the sum of the number of the residual resource blocks and the number of the resource blocks contained in the guard band is smaller than or equal to the size of a sub-channel, and the residual resource blocks and all the resource blocks in the guard band form a sub-channel; a protective band is not arranged behind the residual resource blocks, and the residual resource blocks are used as a sub-channel;
the number of the remaining resource blocks is greater than or equal to a first threshold, the ratio of the number of the remaining resource blocks to the size of the sub-channel is greater than or equal to a second threshold, and the remaining resource blocks serve as the sub-channel; the number of the residual resource blocks is smaller than a first threshold or the ratio of the number of the residual resource blocks to the size of the sub-channel is smaller than a second threshold, and the residual resource blocks do not belong to any sub-channel;
the number of the remaining resource blocks is larger than or equal to a first threshold, a guard band is arranged behind the remaining resource blocks, and the remaining resource blocks and all the resource blocks in the guard band form a sub-channel; the number of the remaining resource blocks is larger than or equal to a first threshold, a protective band does not exist behind the remaining resource blocks, and the remaining resource blocks serve as a sub-channel; the number of the residual resource blocks is smaller than a first threshold, and the residual resource blocks do not belong to any sub-channel;
the ratio of the number of the remaining resource blocks to the size of the sub-channel is greater than or equal to a second threshold, a guard band is arranged behind the remaining resource blocks, and the remaining resource blocks and all resource blocks in the guard band form a sub-channel; the ratio of the number of the remaining resource blocks to the size of the sub-channel is greater than or equal to a second threshold, and a guard band is not arranged behind the remaining resource blocks which are used as the sub-channel; the ratio of the number of the residual resource blocks to the size of the sub-channel is smaller than a second threshold, and the residual resource blocks do not belong to any sub-channel;
the number of the remaining resource blocks is greater than or equal to a first threshold, a guard band is arranged behind the remaining resource blocks, the sum of the number of the remaining resource blocks and the number of the resource blocks contained in the guard band is greater than the size of a sub-channel, and the remaining resource blocks and part of the resource blocks in the guard band form a sub-channel with the size equal to the size of the sub-channel; the number of the remaining resource blocks is greater than or equal to a first threshold, a guard band is arranged behind the remaining resource blocks, the sum of the number of the remaining resource blocks and the number of the resource blocks contained in the guard band is less than or equal to the size of a sub-channel, and the remaining resource blocks and all the resource blocks in the guard band form a sub-channel; the number of the remaining resource blocks is larger than or equal to a first threshold, a guard band is not arranged behind the remaining resource blocks, and the remaining resource blocks are used as a sub-channel; the number of the residual resource blocks is smaller than a first threshold, and the residual resource blocks do not belong to any sub-channel;
the ratio of the number of the remaining resource blocks to the size of the sub-channel is larger than or equal to a second threshold, a guard band is arranged behind the remaining resource blocks, the sum of the number of the remaining resource blocks and the number of the resource blocks contained in the guard band is larger than the size of the sub-channel, and the remaining resource blocks and part of the resource blocks in the guard band form the sub-channel of which the size is equal to the size of the sub-channel; the ratio of the number of the remaining resource blocks to the size of the sub-channel is larger than or equal to a second threshold, a guard band is arranged behind the remaining resource blocks, the sum of the number of the remaining resource blocks and the number of the resource blocks contained in the guard band is smaller than or equal to the size of the sub-channel, and the remaining resource blocks and all the resource blocks in the guard band form a sub-channel; the ratio of the number of the remaining resource blocks to the size of the sub-channel is greater than or equal to a second threshold, and a guard band is not arranged behind the remaining resource blocks which are used as the sub-channel; the ratio of the number of the residual resource blocks to the size of the sub-channel is smaller than a second threshold, and the residual resource blocks do not belong to any sub-channel;
the number of the residual resource blocks is larger than or equal to a first threshold, and the residual resource blocks are used as a sub-channel; the number of the residual resource blocks is smaller than a first threshold, and the residual resource blocks and the last sub-channel in the sub-channels with the number of the sub-channels divided in sequence according to the size of the sub-channels in the RB set are combined into one sub-channel;
the ratio of the number of the residual resource blocks to the size of the sub-channel is greater than or equal to a second threshold, and the residual resource blocks are used as a sub-channel; the ratio of the number of the residual resource blocks to the size of the sub-channels is smaller than a second threshold, and the residual resource blocks and the last sub-channel in the sub-channels with the number of the sub-channels divided in sequence according to the size of the sub-channels in the RB set are combined into one sub-channel;
the number of the remaining resource blocks is greater than or equal to a first threshold, the ratio of the number of the remaining resource blocks to the size of the sub-channel is greater than or equal to a second threshold, and the remaining resource blocks serve as the sub-channel; the number of the remaining resource blocks is smaller than a first threshold or the ratio of the number of the remaining resource blocks to the size of the sub-channel is smaller than a second threshold, and the remaining resource blocks and the last sub-channel in the sub-channels with the number of the sub-channels divided in sequence according to the size of the sub-channel in the RB set are combined into one sub-channel.
In an embodiment, the configuration information is configuration information of a sub-channel corresponding to the resource pool, the configuration information includes at least one of a starting resource block position of a first sub-channel, a size of the sub-channel, and a number of the sub-channels, and the preset rule includes a second preset sub-rule;
the determining module 210 is configured to set a resource pool including at least two RB sets, and sequentially divide a number of continuous non-overlapping subchannels, which are the number of subchannels, from an initial resource block position of a first subchannel of the resource pool according to a subchannel size; removing the divided sub-channels according to a second preset sub-rule; the resource pool includes subchannels consisting of all remaining subchannels.
In an embodiment, the determining module 210 is configured to at least one of:
the sub-channel does not cross the RB set, the number of resource blocks contained in the RB set in the sub-channel is smaller than a third threshold, and the sub-channel is excluded;
the sub-channel spans two RB sets, the number of resource blocks contained in the two RB sets in the sub-channel is smaller than a fourth threshold, and the sub-channel is excluded;
the sub-channel does not cross the RB set, the ratio of the number of resource blocks contained in the RB set in the sub-channel to the size of the sub-channel is smaller than a fifth threshold, and the sub-channel is excluded;
the sub-channel spans two RB sets, the ratio of the number of resource blocks contained in the two RB sets in the sub-channel to the size of the sub-channel is smaller than a sixth threshold, and the sub-channel is excluded;
the sub-channel does not cross the RB set, the number of resource blocks contained in the RB set in the sub-channel is smaller than a third threshold, the ratio of the number of the resource blocks contained in the RB set in the sub-channel to the size of the sub-channel is smaller than a fifth threshold, and the sub-channel is excluded;
the sub-channel spans two RB sets, the number of resource blocks contained in the two RB sets in the sub-channel is smaller than a fourth threshold, the ratio of the number of the resource blocks contained in the two RB sets in the sub-channel to the size of the sub-channel is smaller than a sixth threshold, and the sub-channel is excluded;
the sub-channel spans two RB sets, the number of resource blocks contained in the two RB sets in the sub-channel is smaller than a third threshold, the ratio of the number of the resource blocks contained in the two RB sets in the sub-channel to the size of the sub-channel is smaller than a fifth threshold, and the sub-channel is excluded;
the sub-channel spans two sets of RBs, excluding the sub-channel.
In an embodiment, the configuration information is configuration information of a sub-channel corresponding to each RB set in the resource pool, the configuration information includes at least one of a starting resource block position of a first sub-channel, a size of the sub-channel, and a number of the sub-channels, and the preset rule includes a third preset sub-rule;
the determining module 210 is configured to, for any RB set in the resource pool, sequentially divide a number of continuous and non-overlapping subchannels, which are the number of subchannels, according to the size of the subchannels, starting from the starting resource block position of a first subchannel of the RB set; according to a third preset sub-rule, removing the divided sub-channels; the resource pool includes subchannels consisting of the remaining subchannels of all RB sets in the resource pool.
In an embodiment, the determining module 210 is configured to at least one of:
the number of resource blocks contained in the RB set in the sub-channel is less than a seventh threshold, and the sub-channel is excluded;
the ratio of the number of resource blocks contained in the RB set in the sub-channel to the size of the sub-channel is smaller than an eighth threshold, and the sub-channel is excluded;
the sub-channel overlaps with the next RB set or overlaps with the first sub-channel of the next RB set, excluding the sub-channel.
In an embodiment, the configuration information is configuration information of a sub-channel corresponding to the resource pool, and the configuration information includes at least one of a starting resource block position of a first sub-channel, a size of the sub-channel, and a number of the sub-channels;
the determining module 210 is configured to set the resource pool to include one RB set, and sequentially divide a number of continuous non-overlapping subchannels, which are the number of subchannels, from an initial resource block position of a first subchannel of the resource pool according to a subchannel size; the resource pool includes subchannels composed of all the divided subchannels.
In an embodiment, the resource pool is divided into subchannels, and then there are remaining resource blocks, and the number of remaining resource blocks is greater than or equal to the third threshold, and the remaining resource blocks are used as a subchannel, and the resource pool further includes the subchannel.
In an embodiment, the configuration information is configuration information of a sub-channel corresponding to each RB set in the resource pool, and the configuration information includes at least one of a starting resource block position of a first sub-channel, a size of the sub-channel, and a number of the sub-channels;
the determining module 210 is configured to, for any RB set in the resource pool, sequentially divide a number of continuous and non-overlapping subchannels, which are the number of subchannels, according to the size of the subchannels, starting from the starting resource block position of the first subchannel of the RB set; the sub-channels included in the resource pool are composed of sub-channels corresponding to all RB sets in the resource pool.
In one embodiment, for an RB set followed by a guard band, the end position of the last sub-channel corresponding to the RB set is at or before the end position of the guard band; for an RB set followed by no guard band, the end position of the last sub-channel corresponding to the RB set is at or before the end position of the RB set.
An embodiment of the present application further provides a communication node, including: a processor for implementing a method as provided in any of the embodiments of the present application when executing a computer program. Specifically, the communication node may be a terminal device provided in any embodiment of the present application, and the present application does not specifically limit this.
For example, the following embodiments respectively provide a schematic structural diagram of a communication node being a UE and a base station (or a higher-level entity).
Fig. 20 is a schematic structural diagram of a UE according to an embodiment, which may be implemented in various forms, and the UE in this application may include, but is not limited to, a mobile terminal Device such as a mobile phone, a smart phone, a notebook computer, a Digital broadcast receiver, a Personal Digital Assistant (PDA), a tablet computer (PAD), a Portable Media Player (PMP), a navigation Device, a vehicle-mounted terminal Device, a vehicle-mounted display terminal, a vehicle-mounted electronic rear view mirror, and a fixed terminal Device such as a Digital Television (TV), a desktop computer, and the like.
As shown in fig. 20, the UE 50 may include a wireless communication unit 51, an Audio/Video (a/V) input unit 52, a user input unit 53, a sensing unit 54, an output unit 55, a memory 56, an interface unit 57, a processor 58, and a power supply unit 59, and the like. Fig. 20 illustrates a UE including various components, but it is to be understood that not all illustrated components are required to be implemented. More or fewer components may alternatively be implemented.
In the present embodiment, the wireless communication unit 51 allows radio communication between the UE 50 and the UE or a base station or a network. The a/V input unit 52 is arranged to receive audio or video signals. The user input unit 53 may generate key input data to control various operations of the UE 50 according to commands input by the user. The sensing unit 54 detects a current state of the UE 50, a position of the UE 50, presence or absence of a touch input by a user to the UE 50, an orientation of the UE 50, acceleration or deceleration movement and direction of the UE 50, and the like, and generates commands or signals for controlling operations of the UE 50. The interface unit 57 serves as an interface through which at least one external device is connected with the UE 50. The output unit 55 is configured to provide output signals in a visual, audio, and/or tactile manner. The memory 56 may store software programs or the like for processing and controlling operations performed by the processor 58, or may temporarily store data that has been or will be output. The memory 56 may include at least one type of storage medium. Also, the UE 50 may cooperate with a network storage device that performs the storage function of the memory 56 through a network connection. The processor 58 generally controls the overall operation of the UE 50. The power supply unit 59 receives external power or internal power under the control of the processor 58 and provides appropriate power required to operate various elements and components.
The processor 58 executes the program stored in the memory 56 to execute at least one functional application and data processing, for example, to implement the methods provided by the embodiments of the present application.
Fig. 21 is a schematic structural diagram of a base station (or a higher-level entity) provided in an embodiment, and as shown in fig. 21, the base station includes a processor 60, a memory 61 and a communication interface 62; the number of the processors 60 in the base station may be one or more, and one processor 60 is taken as an example in fig. 21; the processor 60, the memory 61 and the communication interface 62 in the base station may be connected by a bus or other means, and the bus connection is exemplified in fig. 21. A bus represents one or more of any of several types of bus structures, including a memory bus or memory controller, a peripheral bus, an accelerated graphics port, and a processor or local bus using any of a variety of bus architectures.
The memory 61, which is a computer-readable storage medium, may be configured to store software programs, computer-executable programs, and modules, such as program instructions/modules corresponding to the methods in the embodiments of the present application. The processor 60 executes at least one functional application of the base station and data processing by executing software programs, instructions and modules stored in the memory 61, i.e. implements the above-mentioned method.
The memory 61 may include a storage program area and a storage data area, wherein the storage program area may store an operating system, an application program required for at least one function; the storage data area may store data created according to the use of the terminal, and the like. Further, the memory 61 may include high speed random access memory, and may also include non-volatile memory, such as at least one magnetic disk storage device, flash memory device, or other non-volatile solid state storage device. In some examples, the memory 61 can include memory located remotely from the processor 60, which can be connected to a base station through a network. Examples of such networks include, but are not limited to, the internet, intranets, networks, mobile communication networks, and combinations thereof.
The communication interface 62 may be configured for the reception and transmission of data.
Embodiments of the present application further provide a computer-readable storage medium, on which a computer program is stored, where the computer program, when executed by a processor, implements a method as provided in any embodiment of the present application.
The computer storage media of the embodiments of the present application may take any combination of one or more computer-readable media. The computer readable medium may be a computer readable signal medium or a computer readable storage medium. The computer-readable storage medium may be, for example but not limited to: an electrical, magnetic, optical, electromagnetic, infrared, or semiconductor system, apparatus, or device, or any combination thereof. The computer readable storage medium includes (a non-exhaustive list): an electrical connection having one or more wires, a portable computer diskette, a hard disk, a Random Access Memory (RAM), a Read-Only Memory (ROM), an erasable programmable Read-Only Memory (EPROM), a flash Memory, an optical fiber, a portable Compact Disc Read-Only Memory (CD-ROM), an optical storage device, a magnetic storage device, or any suitable combination of the foregoing. In the context of this application, a computer readable storage medium may be any tangible medium that can contain, or store a program for use by or in connection with an instruction execution system, apparatus, or device.
A computer readable signal medium may include a propagated data signal with computer readable program code embodied therein, for example, in baseband or as part of a carrier wave. Such a propagated data signal may take any of a variety of forms, including, but not limited to, electro-magnetic, optical, or any suitable combination thereof. A computer readable signal medium may also be any computer readable medium that is not a computer readable storage medium and that can communicate, propagate, or transport a program for use by or in connection with an instruction execution system, apparatus, or device.
Program code embodied on a computer readable medium may be transmitted using any appropriate medium, including but not limited to wireless, wireline, optical fiber cable, radio Frequency (RF), etc., or any suitable combination of the foregoing.
Computer program code for carrying out operations for aspects of the present disclosure may be written in any combination of one or more programming languages, including an object oriented programming language such as Java, smalltalk, C + +, ruby, go, and conventional procedural programming languages, such as the "C" programming language or similar programming languages. The program code may execute entirely on the user's computer, partly on the user's computer, as a stand-alone software package, partly on the user's computer and partly on a remote computer or entirely on the remote computer or server. In the latter scenario, the remote computer may 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 the connection may be made to an external computer (for example, through the internet using an internet service provider).
It will be clear to a person 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 car mounted mobile station.
In general, the various embodiments of the application may be implemented in hardware or special purpose 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 which may be executed by a controller, microprocessor or other computing device, although the application is not limited thereto.
Embodiments of the application may be implemented by a data processor of a mobile device executing computer program instructions, 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-related instructions, microcode, firmware instructions, state setting data, or source code or object code written in any combination of one or more programming languages.
Any logic flow block diagrams in the figures of this application may represent program steps, or may represent interconnected logic circuits, modules, and functions, or may represent a combination of program steps and logic circuits, modules, and functions. The computer program may be stored on a memory. The memory may be of any type suitable to 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 disks, DVDs, or CD discs), etc. The computer readable medium may include a non-transitory storage medium. The data processor may be of any type suitable to the local technical environment, such as but not limited to general purpose computers, special purpose computers, microprocessors, digital Signal Processors (DSPs), application Specific Integrated Circuits (ASICs), programmable logic devices (FPGAs), and processors based on a multi-core processor architecture.

Claims (15)

1. A method for determining a sub-channel, comprising:
determining configuration information, wherein the configuration information comprises at least one of a starting resource block position, a sub-channel size and a sub-channel number of a first sub-channel;
and determining the sub-channels included in the resource pool according to a preset rule and the configuration information.
2. The method according to claim 1, wherein the configuration information is configuration information of a sub-channel corresponding to each resource block set RB set in the resource pool, the configuration information includes a starting resource block position of a first sub-channel, a size of the sub-channel, and a number of the sub-channels, and the preset rule includes a first preset sub-rule;
the determining, according to the preset rule and the configuration information, the sub-channels included in the resource pool includes:
for any RB set in the resource pool, sequentially dividing a plurality of continuous non-overlapped sub-channels of the sub-channels according to the size of the sub-channels from the initial resource block position of the first sub-channel of the RB set; determining sub-channels to which the remaining resource blocks of the RB set belong according to the first preset sub-rule;
and the sub-channels included in the resource pool are composed of sub-channels corresponding to all RB sets in the resource pool.
3. The method of claim 2, wherein the remaining resource blocks of the RB set are resource blocks remaining at an end position of the RB set after the number of continuous non-overlapping sub-channels is sequentially divided according to the size of the sub-channels from a start resource block position of a first sub-channel of the RB set.
4. The method according to claim 3, wherein the first predetermined sub-rule comprises any one of:
the residual resource block is used as a sub-channel;
the remaining resource blocks do not belong to any sub-channel;
the residual resource blocks and the last sub-channel in the sub-channels with the number of sub-channels divided in sequence according to the size of the sub-channel in the RB set are combined into one sub-channel;
and determining the sub-channel to which the residual resource block belongs according to at least one of the size relationship between the number of the residual resource blocks and a first threshold, the size relationship between the ratio of the number of the residual resource blocks to the size of the sub-channel and a second threshold, and whether a guard band exists behind the residual resource blocks.
5. The method of claim 4, wherein the determining the sub-channel to which the remaining resource block belongs according to at least one of a size relationship between the number of remaining resource blocks and a first threshold, a size relationship between a ratio of the number of remaining resource blocks to the size of the sub-channel and a second threshold, and whether a guard band is followed by the remaining resource block comprises at least one of:
the number of the residual resource blocks is greater than or equal to a first threshold, and the residual resource blocks are used as a sub-channel; the number of the residual resource blocks is less than a first threshold, and the residual resource blocks do not belong to any sub-channel;
the ratio of the number of the residual resource blocks to the size of the sub-channel is greater than or equal to a second threshold, and the residual resource blocks are used as a sub-channel; the ratio of the number of the residual resource blocks to the size of the sub-channel is smaller than a second threshold, and the residual resource blocks do not belong to any sub-channel;
a guard band is arranged behind the residual resource blocks, and the residual resource blocks and all the resource blocks in the guard band form a sub-channel; a guard band is not arranged behind the residual resource block, and the residual resource block is used as a sub-channel;
the residual resource blocks are followed by guard bands, the sum of the number of the residual resource blocks and the number of the resource blocks contained in the guard bands is larger than the size of the sub-channel, and the residual resource blocks and part of resource blocks in the guard bands form the sub-channel with the size equal to the size of the sub-channel; a guard band is arranged behind the residual resource blocks, the sum of the number of the residual resource blocks and the number of the resource blocks contained in the guard band is smaller than or equal to the size of the sub-channel, and the residual resource blocks and all the resource blocks in the guard band form a sub-channel; a guard band is not arranged behind the residual resource block, and the residual resource block is used as a sub-channel;
the number of the residual resource blocks is greater than or equal to a first threshold, the ratio of the number of the residual resource blocks to the size of the sub-channel is greater than or equal to a second threshold, and the residual resource blocks are used as a sub-channel; the number of the residual resource blocks is smaller than a first threshold or the ratio of the number of the residual resource blocks to the size of the sub-channel is smaller than a second threshold, and the residual resource blocks do not belong to any sub-channel;
the number of the residual resource blocks is larger than or equal to a first threshold, a guard band is arranged behind the residual resource blocks, and all resource blocks in the residual resource blocks and the guard band form a sub-channel; the number of the residual resource blocks is larger than or equal to a first threshold, and a guard band does not exist behind the residual resource blocks, and the residual resource blocks are used as a sub-channel; the number of the residual resource blocks is smaller than a first threshold, and the residual resource blocks do not belong to any sub-channel;
the ratio of the number of the residual resource blocks to the size of the sub-channel is greater than or equal to a second threshold, a guard band is arranged behind the residual resource blocks, and the residual resource blocks and all resource blocks in the guard band form a sub-channel; the ratio of the number of the residual resource blocks to the size of the sub-channel is greater than or equal to a second threshold, and no guard band is arranged behind the residual resource blocks, wherein the residual resource blocks are used as a sub-channel; the ratio of the number of the residual resource blocks to the size of the sub-channel is smaller than a second threshold, and the residual resource blocks do not belong to any sub-channel;
the number of the residual resource blocks is greater than or equal to a first threshold, a guard band is arranged behind the residual resource blocks, the sum of the number of the residual resource blocks and the number of the resource blocks contained in the guard band is greater than the size of the sub-channel, and the residual resource blocks and part of the resource blocks in the guard band form a sub-channel with the size equal to the size of the sub-channel; the number of the residual resource blocks is greater than or equal to a first threshold, a guard band is arranged behind the residual resource blocks, the sum of the number of the residual resource blocks and the number of resource blocks contained in the guard band is less than or equal to the size of the sub-channel, and the residual resource blocks and all resource blocks in the guard band form a sub-channel; the number of the residual resource blocks is greater than or equal to a first threshold, and no guard band is arranged behind the residual resource blocks, and the residual resource blocks are used as a sub-channel; the number of the residual resource blocks is less than a first threshold, and the residual resource blocks do not belong to any sub-channel;
the ratio of the number of the remaining resource blocks to the size of the sub-channel is greater than or equal to a second threshold, a guard band is arranged behind the remaining resource blocks, the sum of the number of the remaining resource blocks and the number of the resource blocks contained in the guard band is greater than the size of the sub-channel, and the remaining resource blocks and part of the resource blocks in the guard band form a sub-channel with the size equal to the size of the sub-channel; the ratio of the number of the remaining resource blocks to the size of the sub-channel is greater than or equal to a second threshold, a guard band is arranged behind the remaining resource blocks, the sum of the number of the remaining resource blocks and the number of resource blocks contained in the guard band is less than or equal to the size of the sub-channel, and the remaining resource blocks and all resource blocks in the guard band form a sub-channel; the ratio of the number of the residual resource blocks to the size of the sub-channel is greater than or equal to a second threshold, and no guard band is arranged behind the residual resource blocks, wherein the residual resource blocks are used as a sub-channel; the ratio of the number of the residual resource blocks to the size of the sub-channel is smaller than a second threshold, and the residual resource blocks do not belong to any sub-channel;
the number of the residual resource blocks is greater than or equal to a first threshold, and the residual resource blocks are used as a sub-channel; the number of the residual resource blocks is smaller than a first threshold, and the residual resource blocks and the last sub-channel in the sub-channels with the number of the sub-channels divided in sequence according to the size of the sub-channels in the RB set are combined into one sub-channel;
the ratio of the number of the residual resource blocks to the size of the sub-channel is greater than or equal to a second threshold, and the residual resource blocks are used as a sub-channel; the ratio of the number of the residual resource blocks to the size of the sub-channel is smaller than a second threshold, and the residual resource blocks and the last sub-channel in the sub-channels with the number of the sub-channels divided in sequence according to the size of the sub-channel in the RB set are combined into one sub-channel;
the number of the residual resource blocks is greater than or equal to a first threshold, the ratio of the number of the residual resource blocks to the size of the sub-channel is greater than or equal to a second threshold, and the residual resource blocks serve as a sub-channel; the number of the remaining resource blocks is smaller than a first threshold or the ratio of the number of the remaining resource blocks to the size of the sub-channel is smaller than a second threshold, and the remaining resource blocks and the last sub-channel in the sub-channels with the number of the sub-channels divided in sequence according to the size of the sub-channel in the RB set are combined into one sub-channel.
6. The method according to claim 1, wherein the configuration information is configuration information of a sub-channel corresponding to the resource pool, the configuration information includes a starting resource block position of a first sub-channel, a size of the sub-channel, and a number of the sub-channels, and the preset rule includes a second preset sub-rule;
the determining, according to the preset rule and the configuration information, the sub-channels included in the resource pool includes:
the resource pool comprises at least two RB sets, and the number of continuous and non-overlapped sub-channels of the sub-channels is divided in sequence according to the size of the sub-channels from the initial resource block position of the first sub-channel of the resource pool;
according to the second preset sub-rule, removing the divided sub-channels;
the sub-channels included in the resource pool are composed of all the remaining sub-channels.
7. The method according to claim 6, wherein the excluding the divided sub-channels according to the second predetermined sub-rule comprises at least one of:
the sub-channel does not cross the RB set and the number of resource blocks contained in the RB set in the sub-channel is less than a third threshold, and the sub-channel is excluded;
the sub-channel spans two RB sets, the number of resource blocks contained in the two RB sets in the sub-channel is smaller than a fourth threshold, and the sub-channel is excluded;
the sub-channel does not cross the RB set, the ratio of the number of resource blocks contained in the RB set in the sub-channel to the size of the sub-channel is smaller than a fifth threshold, and the sub-channel is excluded;
the sub-channel spans two RB sets, the ratio of the number of resource blocks contained in the two RB sets in the sub-channel to the size of the sub-channel is smaller than a sixth threshold, and the sub-channel is excluded;
the sub-channel does not cross the RB set, the number of resource blocks contained in the RB set in the sub-channel is smaller than a third threshold, and the ratio of the number of resource blocks contained in the RB set in the sub-channel to the size of the sub-channel is smaller than a fifth threshold, so that the sub-channel is excluded;
the sub-channel spans two RB sets, the number of resource blocks contained in the two RB sets in the sub-channel is smaller than a fourth threshold, the ratio of the number of the resource blocks contained in the two RB sets in the sub-channel to the size of the sub-channel is smaller than a sixth threshold, and the sub-channel is excluded;
the sub-channel spans two RB sets, the number of resource blocks contained in the two RB sets in the sub-channel is smaller than a third threshold, the ratio of the number of the resource blocks contained in the two RB sets in the sub-channel to the size of the sub-channel is smaller than a fifth threshold, and the sub-channel is excluded;
the sub-channel spans two sets of RBs, excluding the sub-channel.
8. The method of claim 1, wherein the configuration information is configuration information of a sub-channel corresponding to each RB set in the resource pool, the configuration information includes a starting resource block position of a first sub-channel, a size of the sub-channel, and a number of the sub-channels, and the preset rule includes a third preset sub-rule;
the determining, according to the preset rule and the configuration information, the sub-channels included in the resource pool includes:
for any RB set in the resource pool, sequentially dividing a plurality of continuous non-overlapped sub-channels of the sub-channels according to the size of the sub-channels from the initial resource block position of the first sub-channel of the RB set;
according to the third preset sub-rule, removing the divided sub-channels;
the sub-channels included in the resource pool are composed of the remaining sub-channels of all sets of RBs in the resource pool.
9. The method according to claim 8, wherein said excluding the divided sub-channels according to the third predetermined sub-rule comprises at least one of:
the number of resource blocks contained in the RB set in the sub-channel is less than a seventh threshold, and the sub-channel is excluded;
the ratio of the number of resource blocks contained in RB set in the sub-channel to the size of the sub-channel is smaller than an eighth threshold, and the sub-channel is excluded;
the sub-channel overlaps with the next RB set or overlaps with the first sub-channel of the next RB set, excluding the sub-channel.
10. The method of claim 1, wherein the configuration information is configuration information of a sub-channel corresponding to the resource pool, and the configuration information includes a starting resource block position of a first sub-channel, a size of the sub-channel, and a number of the sub-channels;
the determining, according to the preset rule and the configuration information, the sub-channels included in the resource pool includes:
the resource pool comprises an RB set, and the number of continuous and non-overlapped sub-channels of the sub-channels is divided in sequence according to the size of the sub-channels from the initial resource block position of the first sub-channel of the resource pool; the sub-channels included in the resource pool are composed of all the divided sub-channels.
11. The method according to claim 10, wherein the resource pool is divided into the number of subchannels, and then there are remaining resource blocks, and the number of remaining resource blocks is greater than or equal to a third threshold, and the remaining resource blocks are used as one subchannel, and the resource pool further includes the subchannel.
12. The method according to claim 1, wherein the configuration information is configuration information of a sub-channel corresponding to each RB set in the resource pool, and the configuration information includes a starting resource block position of a first sub-channel, a sub-channel size, and a sub-channel number;
the determining, according to the preset rule and the configuration information, the sub-channels included in the resource pool includes:
for any RB set in the resource pool, sequentially dividing a plurality of continuous and non-overlapped sub-channels of the sub-channels according to the size of the sub-channels from the initial resource block position of a first sub-channel of the RB set;
the sub-channels included in the resource pool are composed of sub-channels corresponding to all RB sets in the resource pool.
13. The method of claim 12, wherein for an RB set followed by a guardband, the RB set corresponds to an end position of a last sub-channel at or before the end position of the guardband; for an RB set followed by no guard band, the end position of the last sub-channel corresponding to the RB set is at or before the end position of the RB set.
14. A communications node, comprising: a processor; the processor is adapted to implement the method of determining a sub-channel according to any of claims 1-13 when executing a computer program.
15. A computer-readable storage medium, in which a computer program is stored which, when being executed by a processor, carries out the method for determining a sub-channel according to any one of claims 1 to 13.
CN202211204748.4A 2022-09-29 2022-09-29 Method for determining sub-channel, communication node and storage medium Pending CN115941458A (en)

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CN113518428A (en) * 2020-04-09 2021-10-19 维沃移动通信有限公司 Resource determination method and equipment
US11558823B2 (en) * 2020-05-15 2023-01-17 Qualcomm Incorporated Utilization of additional bandwidth in a sidelink resource pool
EP4226709A1 (en) * 2020-10-09 2023-08-16 Qualcomm Incorporated Sidelink resource allocation in unlicensed spectrum
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