Channel receiving and sending method, communication node and storage medium

Abstract

The invention discloses a channel receiving and sending method, a communication node and a storage medium. The channel receiving method comprises the following steps: determining a target resource block RB according to a mapping mode of a control resource set CORESET, the target RB occupying a first bandwidth; and receiving a physical downlink control channel (PDCCH) on at least part of the target RBs.

Description

Technical Field

[0001] This application relates to the field of communication technology, such as a channel receiving and transmitting method, a communication node, and a storage medium. Background Technology

[0002] When multiple terminal devices with different capabilities coexist (e.g., some terminal devices support high bandwidth, while others support low bandwidth), their control-resource set (CORESET) can be configured to occupy multiple control channel elements (CCEs). Some terminal devices use multiple CCEs for bandwidth transmission on their physical downlink control channel (PDCCH), while others use a small number of CCEs or resource element groups (REGs) for narrowband transmission. If these terminal devices share a single CORESET, narrowband transmission cannot coexist well with bandwidth transmission because CORESET interleaving occurs across the entire CORESET. Summary of the Invention

[0003] This application provides a channel receiving method applied to a first communication node, the method comprising:

[0004] Based on the mapping method of the control resource set CORESET, the target resource block RB is determined, and the target RB occupies the first bandwidth;

[0005] Physical downlink control channel (PDCCH) is received on at least some of the target RBs.

[0006] This application provides a channel transmission method applied to a second communication node, the method comprising:

[0007] Based on the mapping method of the control resource set CORESET, the target resource block RB is determined, and the target RB occupies the first bandwidth;

[0008] Transmit the Physical Downlink Control Channel (PDCCH) on at least some of the target RBs.

[0009] This application provides a communication node, including: a processor; the processor is used to implement the method of any of the above embodiments when executing a computer program.

[0010] This application also provides a computer-readable storage medium storing a computer program, which, when executed by a processor, implements the method of any of the above embodiments.

[0011] Further details regarding the above embodiments and other aspects of this application, as well as their implementations, are provided in the accompanying drawings, detailed description, and claims. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of an existing CORESET mapping from REG before interleaving to RB / REG after interleaving;

[0013] Figure 2 This is a network diagram of a wireless communication system provided in one embodiment;

[0014] Figure 3 This is a schematic flowchart of a channel receiving method provided in one embodiment;

[0015] Figure 4 Example 2 is a schematic diagram of how REGs before interleaving in CORESET are mapped to REGs / RBs after interleaving in CORESET;

[0016] Figure 5 Example 4 provides a schematic diagram of how REGs before interleaving in CORESET are mapped to REGs / RBs after interleaving in CORESET;

[0017] Figure 6 This is a schematic diagram of another CORESET mapping from pre-interleaving REG to post-interleaving REG / RB provided in Example 4;

[0018] Figure 7 Example 5 provides a schematic diagram of how REGs before interleaving in CORESET are mapped to REGs / RBs after interleaving in CORESET;

[0019] Figure 8 This is a schematic diagram of the third mapping method, which maps discrete REGs before interleaving in CORESET to continuous RBs.

[0020] Figure 9 This is a schematic diagram of another method corresponding to the third mapping method, which maps discrete REGs before interleaving in CORESET to continuous RBs.

[0021] Figure 10 This is a schematic flowchart of a channel transmission method provided in one embodiment;

[0022] Figure 11 This is a schematic diagram of the structure of a channel receiving device provided in one embodiment;

[0023] Figure 12 This is a schematic diagram of the structure of a channel transmission device provided in one embodiment;

[0024] Figure 13 This is a schematic diagram of the structure of a UE provided in one embodiment;

[0025] Figure 14 This is a schematic diagram of the structure of a base station provided in one embodiment. Detailed Implementation

[0026] It should be understood that the specific embodiments described herein are merely illustrative and not intended to limit the scope of this application. The embodiments of this application will be described in detail below with reference to the accompanying drawings.

[0027] A CORESET is a frequency domain resource concept in the New Radio (NR) interface of 5G mobile communication technology. It is a set of physical resources within a specific area of ​​the Downlink Resource Grid, used to carry the PDCCH (Power Distribution Center Chip). A CORESET typically includes... Each resource block (RB) contains M symbols (where M can be 1, 2, or 3). In other words, each symbol contains the following number of RBs. A symbol contains 12 consecutive Resource Elements (REs) forming a REG, 6 REGs forming a CCE, and one REG equals one RB. In this application, REGs and RBs are interchangeable.

[0028] A PDCCH occupies one or more consecutive CCEs, and the number of CCEs occupied by the PDCCH is less than or equal to the number of CCEs included in the CORESET. A CCE can be regarded as a resource unit allocated by the PDCCH. A CCE includes discrete or continuous RB / REGs. The RB / REGs included in a CCE can be determined by non-interleaved mapping and interleaved mapping.

[0029] Figure 1 This is a schematic diagram of an existing CORESET mapping from REG before interleaving to RB / REG after interleaving. For example... Figure 1 As shown, a CORESET includes 18 REGs, numbered REG#0 to REG#17. Every 6 REGs form a CCE, meaning a CORESET includes 3 CCEs, numbered CCE#1 to CCE#3. In non-interleaved mapping, REG#0 maps to RB#0, REG#1 maps to RB#1, and so on, with REG#17 mapping to RB#17. In interleaved mapping, it is performed on a per-resource-element-bundle basis. Figure 1The example diagram uses 2 REG bundles, meaning 2 REGs form one REG bundle. The CORESET contains a total of 18 / 2 = 9 REG bundles. The interleaver has 3 rows and 3 columns, with the interleaver arranged in rows and columns. Figure 1 As can be seen, for interleaving mapping, the REGs in each CCE are broken up after interleaving. The REGs before interleaving are only for easy distinction from the REGs / RBs after interleaving. A CORESET containing one or more REGs is equivalent to a CORESET containing one or more pre-interleaving REGs, which is equivalent to a CORESET containing one or more RBs. In some implementations, there may be no concept of pre-interleaving REGs; only the RBs / REGs corresponding to a group in the CORESET are described. The PDCCH transmits directly on the corresponding RBs / REGs. These RBs / REGs are interleaved. For example, Figure 1 In CCE1, the RB / REGs (after interleaving) are RB#0, RB#1, RB#6, RB#7, RB#12, and RB#13. The RB / REGs (after interleaving) of CCE2 are RB#2, RB#3, RB#8, RB#9, RB#14, and RB#15.

[0030] It should be noted that a single PDCCH does not necessarily occupy all the CCEs in the entire core. When a PDCCH occupies only a portion of the CCEs, they are used according to the order of CCEs. That is, when a PDCCH occupies one CCE, the RB corresponding to CCE#1 is used (i.e., Figure 1 RB blocks numbered 0-5); when a PDCCH occupies 2 CCEs, the RBs corresponding to the resources of CCE#1 and CCE#2 are used (i.e., Figure 1 (RB blocks numbered 0-11). In either case, these RB blocks are distributed across a large bandwidth, which is detrimental to reception by terminal devices with small bandwidth.

[0031] The channel receiving method and channel transmitting method provided in this application can be applied to various wireless communication systems, such as 5th-generation (5G) systems, LTE and 5G hybrid architecture systems, 5G New Radio (NR) systems, and new communication systems that will emerge in the future development of communication, such as 6th-generation (6G) systems. Figure 2 This is a network diagram of a wireless communication system provided in one embodiment. For example... Figure 2 As shown, the wireless communication system includes a terminal device 110, an access network device 120, and a core network device 130.

[0032] Terminal device 110 can be a device with wireless transceiver capabilities, which can be deployed on land (such as indoors or outdoors, handheld, wearable or vehicle-mounted); on water (such as ships); or in the air (such as airplanes, balloons and satellites). Examples of terminal devices 110 include: passive terminals, user equipment (UE), mobile phones, mobile stations, tablets, laptops, ultra-mobile personal computers (UMPCs), handheld computers, netbooks, personal digital assistants (PDAs), and other network-connected user devices; virtual reality (VR) terminals, augmented reality (AR) terminals, wireless terminals in industrial control, wireless terminals in self-driving, wireless terminals in remote medical care, wireless terminals in smart grids, wireless terminals in transportation safety, wireless terminals in smart cities, wireless terminals in smart homes, etc.; IoT nodes in the Internet of Things (IoT); in-vehicle communication devices in the Internet of Vehicles (IoV); entertainment and gaming devices or systems; and GPS devices, etc. The embodiments of this application do not limit the specific technologies or device forms used in the terminal devices. Furthermore, the term "terminal device" can be abbreviated as "terminal."

[0033] Access network equipment 120 is the access device through which terminal equipment 110 wirelessly accesses the wireless communication system. It can be a reader / writer, a base station, an evolved NodeB (eNB or eNodeB) in Long Term Evolution Advanced (LTE), a transmission reception point (TRP), a base station in a 5G mobile communication system, a next-generation NodeB (gNB), a base station in a 6G mobile communication system, a base station in a future mobile communication system, or an access node in a Wireless Fidelity (WiFi) system. Base stations can include various macro base stations, micro base stations, femtobase stations, wireless extensions, routers, WiFi devices, or various network-side devices such as primary cells and secondary cells, as well as location management function (LMF) devices. It can also be a module or unit that performs some of the functions of a base station; for example, it can be a central unit (CU) or a distributed unit (DU). The embodiments of this application do not limit the specific technology or equipment form used in the access network equipment. In addition, the access network equipment can be referred to as a base station.

[0034] Core network equipment 130 may include access and mobility management network elements and session management network elements. For example, terminal equipment 110 can access the core network through access network equipment 120 to achieve data transmission.

[0035] This application provides a channel receiving method, a channel transmitting method, a communication node, and a storage medium that can operate in the above-mentioned wireless communication system. It enables the transmission of PDCCH with a small bandwidth in a large bandwidth CORESET, thereby improving the system's compatibility.

[0036] The following describes the channel receiving method, the channel transmitting method, the communication node, and their technical effects.

[0037] Figure 3 This is a schematic flowchart illustrating a channel receiving method according to one embodiment. Figure 3 As shown, the method provided in this embodiment is applicable to a first communication node (also referred to as a first communication node device, or a first node, or a first device). For example, the first communication node can be a terminal device. The method includes the following steps.

[0038] S310. Based on the mapping method of the control resource set CORESET, determine the target resource block RB, and the target RB occupies the first bandwidth.

[0039] The target RB is the actual frequency domain resource that the PDCCH may correspond to. That is, the RBs corresponding to the CCE / REG occupied by the PDCCH are a subset of the target RBs. The target RB occupies the first bandwidth. Here, the first bandwidth can be a small bandwidth; or the number of RBs included in the first bandwidth is a first quantity, which is a predefined quantity or N_RB_min; N_RB_min is the number of RBs corresponding to the minimum bandwidth of the system, or the number of RBs corresponding to the bandwidth supported by the terminal device (such as the minimum bandwidth), or the number of RBs corresponding to the bandwidth supported by the first type of terminal device, or the number of RBs corresponding to the maximum bandwidth supported by the first type of terminal device, or the number of RBs corresponding to the maximum PDCCH bandwidth supported by the first type of terminal device, or a predefined value.

[0040] In this way, when the first communication node receives the PDCCH, it can only detect the target RB, thereby realizing the transmission of the PDCCH with a small bandwidth in a large bandwidth CORESET, and improving the system compatibility.

[0041] In one embodiment, the target RB can be a continuous RB or a discontinuous RB.

[0042] In one embodiment, the mapping method of CORESET may include at least one of the following: a first mapping method, a second mapping method, and a third mapping method.

[0043] For the first mapping method, REGs within CORESET are not interleaved.

[0044] Specifically, CORESET uses the first mapping method when at least one of the following conditions is met:

[0045] Condition 1: The first communication node is at least one of the following: Low Power Wide Area (LPWA) terminal device, lightweight terminal device, and mobile terminal device.

[0046] Condition 2: CORESET is applicable to at least one of the following: LPWA terminal devices, lightweight terminal devices, and mobile terminal devices.

[0047] Condition 3: The signaling indicates that the mapping method of CORESET is the first mapping method, and the signaling is at least one of the following: Master Information Block (MIB) signaling, System Information Block (SIB) signaling, Radio Resource Control (RRC) signaling, signaling in the Physical Broadcast Channel (PBCH), Secondary Synchronization Signal (SSS), Synchronization Signal Block (SSB) signaling, and Primary Synchronization Signal (PSS) signaling.

[0048] Condition 4: The number of RB / REGs occupied by PDCCH is less than or equal to the first quantity.

[0049] Condition 5: The predefined mapping method for CORESET is the first mapping method.

[0050] The second mapping method involves grouping resources within a CORESET and interleaving between and / or within groups. The second mapping method will be explained in detail below with different examples.

[0051] Example 1: The target RB corresponds to one or more groups of CORESET. REGs within each group of CORESET are consecutive.

[0052] In some embodiments, a low-capability UE (supporting low bandwidth or Category 1 terminals) transmits the PDCCH in one packet, while a high-capability UE (supporting high bandwidth) can transmit the PDCCH in multiple packets.

[0053] In some embodiments, N_RB_min is determined based on the frequency range (FR) type. That is, different FR types may correspond to different N_RB_min values. For example, the N_RB_min value for FR 1 is greater than the N_RB_min value for FR 2.

[0054] In some embodiments, the first bandwidth is determined according to the FR type. That is, different FR types may correspond to different first bandwidths. For example, the first bandwidth value of FR 1 is greater than the first bandwidth value of FR 2.

[0055] In some embodiments, the predefined value is determined based on the FR type. That is, different FR types may correspond to different predefined values. For example, the predefined value for FR1 is greater than the predefined value for FR2.

[0056] In some embodiments, N_RB_min, the first bandwidth, or a predefined value, is indicated by SSB, MIB, PBCH, or SIB. In some embodiments, N_RB_min, the first bandwidth, or a predefined value, has two values / granularities, one of which is indicated by SSB, MIB, PBCH, or SIB.

[0057] In a first possible implementation, the target RB corresponds to a group of CORESET. REGs within each group of CORESET are interleaved, but not between groups; or, REGs within each group of CORESET are not interleaved, but interleaved between groups; or, REGs within each group of CORESET are interleaved, but interleaved between groups.

[0058] Since the target RB corresponds to only one packet in the CORESET, and the REGs within a packet constitute a continuous bandwidth, regardless of whether intra- or inter-group interleaving occurs within the CORESET, the mapped RB of that packet will still be a continuous bandwidth and will not become a large-bandwidth signal. This allows the first communication node to acquire the PDCCH by receiving only a small-bandwidth signal. Inter-group interleaving refers to interleaving mapping on a group-by-group basis. Intra-group interleaving refers to interleaving mapping between REGs within the same group.

[0059] In a second possible implementation, the target RB corresponds to multiple groups of CORESET. REGs within a group of CORESET are interleaved, but those between groups are not interleaved.

[0060] Since the target RB corresponds to multiple packets of CORESET, and the REG within a packet is a continuous bandwidth, when there is no interleaving between CORESET groups, the resource positions between different groups will not change. This ensures that the RB after the packet mapping corresponding to the target RB is still a continuous bandwidth and will not become a large bandwidth signal. This allows the first communication node to acquire PDCCH by receiving only a small bandwidth signal.

[0061] In Example 1, the CORESET can be grouped using any of the following methods:

[0062] Grouping Method 1: CORESET groups devices according to N_RB_min, where N_RB_min is the number of RBs corresponding to the minimum system bandwidth, or the number of RBs corresponding to the bandwidth supported by the terminal device, or the number of RBs corresponding to the bandwidth supported by the first type of terminal device, or the number of RBs corresponding to the maximum bandwidth supported by the first type of terminal device, or the number of RBs corresponding to the maximum PDCCH bandwidth supported by the first type of terminal device, or a predefined value. The terminal device can be at least one of the following: Low Power Wide Area (LPWA) terminal device, lightweight terminal device, or mobile terminal device. The first type of terminal is at least one of the following: Low Power Wide Area (LPWA) terminal device, lightweight terminal device, low bandwidth terminal, low capability terminal, REDCAP terminal, or low power terminal. It can be understood that the first type of terminal receives data on a low bandwidth.

[0063] When CORESET includes When there are REGs, any of the following characteristics must be satisfied:

[0064] for If the number of REGs in each group is divisible by N_RB_min, then the number of REGs in each group is N_RB_min.

[0065] for For cases where N_RB_min is not divisible, CORESET is divided into A+1 groups. The number of REGs in group A is N_RB_min, and the number of REGs in group 1 is...

[0066] for For cases where N_RB_min is not divisible, CORESET is divided into A groups. The number of REGs in groups B is N_RB_min, and the number of REGs in the remaining groups A and B is N_RB_min-1. In some embodiments, groups 1 to B contain N_RB_min REGs, and groups B+A to A contain N_RB_min-1 REGs.

[0067] For example, if CORESET contains 99 REGs and N_RB_min = 13, then it is divided into... Group 8 × 13 - 99 = 5. Therefore, 5 out of the 8 groups contain 12 REGs each, and the remaining 3 out of the 8 groups contain 13 REGs each.

[0068] Grouping Method 2: CORESET groups according to the number of REGs included in the minimum aggregation level.

[0069] Grouping Method 3: CORESET groups according to the number of REGs included in the minimum divisor of the aggregation level.

[0070] Grouping Method 4: CORESET groups according to the number of REGs included in the largest possible aggregation level.

[0071] For grouping methods 2, 3, and 4, when the number of REGs in the CORESET is not divisible by the number of REGs in each target group, the grouping method in grouping method 1 can also be used for grouping methods 2, 3, and 4. The only difference lies in the number of REGs in each target group. In grouping method 1, the number of REGs in each target group is N_RB_min. In grouping method 2, the number of REGs in each target group is the number of REGs included in the minimum aggregation level. In grouping method 3, the number of REGs in each target group is the number of REGs included in the minimum divisor of the minimum aggregation level. In grouping method 4, the number of REGs in each target group is the number of REGs included in the maximum divisor of the minimum aggregation level.

[0072] In one embodiment, when CORESET groups are interleaved, all groups may be interleaved, or some groups may be interleaved while others may not be interleaved.

[0073] In one embodiment, when interleaving occurs within a group of CORESET, interleaving can be performed at the granularity of REG, REG bundle, or RB.

[0074] In one embodiment, when both intra-group and inter-group interleaving of CORESET are performed, the interleaving patterns of intra-group interleaving and inter-group interleaving are different.

[0075] In one embodiment, when both intra-group and inter-group interleaving of CORESET are performed, the interleaving pattern of intra-group interleaving and inter-group interleaving is the same.

[0076] In one embodiment, the interleaving method in Example 1 can be at least one of the following: row-in list interleaver / include row-out interleaver; predefined interleaving rules. For example, when the interleaving method in Example 1 includes a row-in list interleaver and predefined interleaving rules, interleaving can be performed first according to the predefined interleaving rules, and then the row-in list interleaver can be used for interleaving.

[0077] Optionally, the number of rows in the interleaver is predefined or indicated by signaling, while the number of columns is calculated. For example, the number of rows in the interleaver can be 2, 3, or a multiple of 2 or 3. Alternatively, the number of columns in the interleaver can be predefined or indicated by signaling, while the number of rows is calculated.

[0078] Optionally, the predefined interleaving rules can be used to perform interleaving according to a predefined table. Alternatively, the predefined interleaving rules can be used to determine the interleaved indices according to a predefined table.

[0079] Optionally, different interleaving methods can be used under different conditions. For example, when the number of groups is less than Y, a predefined interleaving rule is used; otherwise, an in-row list interleaver is used for interleaving.

[0080] Optionally, the interleaving method can be selected based on the signaling instructions.

[0081] In some embodiments, each CCE is a packet, and the PDCCH is transmitted within a packet, with intra-packet interleaving and / or inter-packet interleaving. That is, each CCE contains a continuous segment of frequency domain resources, or a continuous segment of REG / RB. In some embodiments, each CCE is a packet, and the PDCCH is transmitted within one or more packets. In some embodiments, when a first condition is met, intra-packet interleaving is used when the PDCCH is transmitted within multiple packets, and inter-packet interleaving is not applied. When the first condition is not met, inter-packet interleaving and / or intra-packet interleaving can be used when the PDCCH is transmitted within multiple packets.

[0082] In some embodiments, the transmission frequency domain resources (RB / REG) of the PDCCH are determined according to the interleaving method in this application.

[0083] Example 2: The target RB corresponds to a specific group of CORESET.

[0084] In Example 2, the CORESET includes M symbols, and the number of REGs within the CORESET is a multiple of M. In one embodiment, the number of REG bundles is also a multiple of M.

[0085] In one embodiment, any of the following features are satisfied: the number of REGs or REG bundles included in a specific group is greater than the number of REGs or REG bundles included in other groups; the REGs corresponding to the specific group are located in the middle frequency domain of the frequency domain where the CORESET is located; and the number of REGs or REG bundles included in other groups is the same except for the specific group.

[0086] Optionally, the REGs or REG bundles within the CORESET can be divided into 9 groups, each containing at least one REG or REG bundle. The specific group is the 5th group out of these 9. For example, the 5th group must contain at least N_RB_min REGs or REG bundles; that is, the number of REGs in the 5th group must be greater than or equal to N_RB_min. The number of REGs in the 5th group is the minimum value greater than or equal to N_RB_min that makes the remaining REGs in the CORESET divisible by 8*M. K is the number of REGs contained in a specific group.

[0087] Optionally, the CORESET can be divided into 9 groups on average. If the CORESET cannot be divided into 9 groups on average, you can refer to the method for grouping the CORESET in Example 1 above, which will not be repeated here for the sake of simplicity.

[0088] Figure 4 This is a schematic diagram provided in Example 2 illustrating the mapping of REGs before interleaving in a CORESET to REGs / RBs after interleaving in a CORESET. For example... Figure 4 As shown, when the CORESET is divided into 9 groups, a 3×3 row-in list of interleavers can be used, thus ensuring that the position of the 5th group remains unchanged before and after interleaving. Small-bandwidth PDCCHs can be transmitted on the resources of the 5th group, and after interleaving, they will still be transmitted on contiguous resources.

[0089] Example 3: CORESET is grouped together, and the interleaver function is f(x).

[0090] In Example 3, the interleaver function is f(x), where x = 0, 1, 2, ..., P-1. P is the number of REGs included in the CORESET. In some embodiments, P is the number of REG bundles in the CORESET.

[0091] In one embodiment, when x ≤ N1 or x ≥ N2, f(x) = x; N1 and N2 are the numbers of the pre-interleaving REG bundles included in the CORESET, and N1 < N2. In another embodiment, when x ≤ N1 or x ≥ N2, f(x) = x; N1 and N2 are the numbers of the pre-interleaving REG bundles included in the CORESET, and N1 < N2.

[0092] The REG / REG bundle number before interleaving corresponding to the target RB satisfies at least one of the following: the REG number corresponding to the target RB is less than or equal to N1; the REG / REG bundle number before interleaving corresponding to the target RB is greater than or equal to N2; or the REG / REG bundle number before interleaving corresponding to the target RB is greater than N1 and less than N2.

[0093] In one embodiment, when N1 < x < N2, interleaving can be performed according to a predefined table or row-listed interleaver.

[0094] Optionally, N1 and N2 are multiples of the number of symbols included in CORESET.

[0095] Optionally, N1 and N2 are multiples of the number of REG bundles included in CORESET.

[0096] Optionally, N1 and N2 are the least common multiple or the greatest common divisor of the number of symbols included in CORESET and the number of REG bundles included in CORESET.

[0097] Example 4: CORESET includes the first frequency domain position, and the target RB corresponds to the first frequency domain position.

[0098] In one embodiment, the frequency domain start point (lowest frequency point) of the first frequency domain location is indicated by an offset value that indicates the offset of the frequency domain start point of the first frequency domain location relative to one of the following: the start point location of CORESET, the frequency domain start point location of SSB, Point A, and the frequency domain start point location of the Initial Bandwidth Part (Initial BWP).

[0099] In one embodiment, the first frequency domain location is predefined or determined according to signaling instructions.

[0100] In one embodiment, the starting point of the first frequency domain position is defaulted to the starting point of CORESET.

[0101] Optionally, the first frequency domain bandwidth can be predefined or indicated by signaling. For example, the first frequency domain bandwidth is N_RB_min, where N_RB_min is the number of RBs corresponding to the minimum bandwidth of the system, or the number of RBs corresponding to the bandwidth supported by the terminal device, or a predefined value.

[0102] In one embodiment, the mapping from REG before interleaving to RB after interleaving at a first frequency domain location undergoes Type I interleaving, while the mapping from REG before interleaving to RB after interleaving at other frequency domain locations undergoes Type II interleaving or no interleaving. It should be noted that in some embodiments, the REG to RB mapping of the CORESET described in this patent is equivalent to the mapping from REG before interleaving to REG after interleaving in the CORESET.

[0103] In one embodiment, the REG-to-RB mappings of the first frequency domain location and other frequency domain locations are all interleaved using type 1 interleaving.

[0104] In Example 4, Type 1 interleaving is interleaving according to Type 1 interleaving scheme, and Type 2 interleaving is interleaving according to Type 2 interleaving scheme.

[0105] The first type of interleaving scheme can be as follows: the first frequency domain contains Rf REGs, and the number of REG bundles is L. That is, one REG bundle contains L REGs. The number of interleaver lines is R, where R is predefined or indicated by signaling.

[0106] For a REG bundle i, it contains REG{i*L,i*L+1,...,i*L+L-1}, where i = 0, 1,...,Rf / L-1. CCE j contains REG bundles{f(6*j / L),f(6*j / L+1),...,f(6*j / L+6 / L-1)}, where f(.) is the interleaving function.

[0107] f(x) = (rC + c + n) shift )mod(Rf / L)

[0108] x = cR + 1

[0109] r = 0, 1, ..., R-1

[0110] c = 0, 1, ..., C-1

[0111] C = Rf / (LR)

[0112] Where, n shift For predefined or signaling indications.

[0113] The REG bundle mentioned above in the CCE refers to the REG bundle index after interleaving.

[0114] The second type of interleaving scheme can be: a predefined interleaving pattern, or a two-row row-column interleaver.

[0115] Figure 5 This is a schematic diagram provided in Example 4 illustrating the mapping of REGs before interleaving in a CORESET to REGs / RBs after interleaving in a CORESET. For example... Figure 5 As shown, the position of the first frequency domain remains unchanged before and after interleaving. Small-bandwidth PDCCHs can be transmitted at the first frequency domain position. Furthermore, this application does not limit the position of the first frequency domain within the CORESET.

[0116] It's important to note that in CORESET, the REGs after interleaving are arranged first in the time domain and then in the frequency domain. The REGs and CCEs before interleaving are sequential; that is, REGs 0-5 before interleaving are CCE1, REGs 6-11 are CCE2, and so on. When mapping CCEs to PDCCHs, the mapping is performed according to the order of the CCEs. For example, if a PDCCH occupies one CCE, it occupies all the REGs in CCE1. They cannot be discretized and mapped to several REGs.

[0117] In one embodiment, the first frequency domain includes an integer number of CCEs.

[0118] In one embodiment, the CCE mapping order in Example 4 needs to be changed. For example, the CCEs in the first frequency domain are numbered first, following frequency domain order. After the CCEs in the first frequency domain are numbered, the CCEs in the CORESET other than those in the first frequency domain continue to be numbered, following frequency domain order.

[0119] In one embodiment, the CCE mapping order in Example 4 needs to be changed. For example, CCEs in the first frequency domain are numbered first, following a time-domain-then-frequency-domain order. After the CCEs in the first frequency domain are numbered, the CCEs in the CORESET, excluding those in the first frequency domain, continue to be numbered, following a time-domain-then-frequency-domain order. In some embodiments, REG here refers to the interleaved state. In some embodiments, REG here refers to the pre-interleaved state.

[0120] In one embodiment, the REG mapping order in Example 4 needs to be changed. For example, REGs in the first frequency domain are numbered first, following the frequency domain order. After the REGs in the first frequency domain are numbered, the REGs in the CORESET other than those in the first frequency domain continue to be numbered, following the frequency domain order.

[0121] In one embodiment, the REG mapping order in Example 4 needs to be changed. For example, REGs in the first frequency domain are numbered first, following a time-domain-then-frequency-domain order. After the REGs in the first frequency domain are numbered, the REGs in the CORESET, excluding those in the first frequency domain, continue to be numbered, following a time-domain-then-frequency-domain order. In some embodiments, REGs here refer to those after interleaving. In some embodiments, REGs here refer to those before interleaving.

[0122] Figure 6 This is a schematic diagram of another CORESET mapping from pre-interleaving REG to post-interleaving REG / RB, as provided in Example 4. Figure 6 As shown, Figure 6 In (a), each cell represents a CCE. The first frequency domain contains one CCE, which is numbered 0. Then, other CCEs in the CORESET are mapped, numbered 1-6. Figure 6In (b), each cell represents a REG. The first frequency domain contains 12 REGs, numbered 0-11. The other REGs in the CORESET, excluding those in the first frequency domain, are further numbered 12-17. Alternatively, Figure 6 In (b), each cell represents a REG. The first frequency domain contains 12 REGs, numbered 0-11, which are CCE#1 and CCE#2. The other REGs in the CORESET, excluding those in the first frequency domain, are further numbered 12-17, which are CCE#3.

[0123] Example 5: Repetition and interweaving.

[0124] Figure 7 This is a schematic diagram provided in Example 5 illustrating the mapping of REGs before interleaving in a CORESET to REGs / RBs after interleaving in a CORESET. For example... Figure 7 As shown, each cell represents a REG, and six REGs form a group, which also constitutes a CCE. In the diagram, CCE#1, CCE#2, and CCE#3 map to three repetitions of the same PDCCH / Downlink Control Information (DCI). Interleaving is performed within each group (CCE).

[0125] In one embodiment, a CORESET contains multiple REGs, and a single transmission of a PDCCH / DCI occupies a portion of the REGs in the CORESET.

[0126] A CORESET consists of M REGs, and a PDCCH occupies N REGs. The CORESET is divided into C groups, and the PDCCH is repeated C times within the CORESET. When C=1, there is no repetition. Each group contains one repetition of PDCCH.

[0127] Optionally, C repetitions are mapped to consecutive resources.

[0128] Optionally, if there are still empty REGs in CORESET after C repetitions, the empty REGs are not mapped. Alternatively, if there are still empty REGs in CORESET after C repetitions, the bits of PDCCH / DCI are mapped sequentially to the remaining REGs until there are no empty REGs in CORESET.

[0129] Optionally, different RV versions can be transmitted between multiple repetitions. For example, repetitions can be performed in the order of RV0, 2, 1, 3. Alternatively, the same RV version can be transmitted between multiple repetitions.

[0130] In one embodiment, each N REG occupied by a PDCCH / DCI is called a group, and the REGs within a group are interleaved and mapped onto the interleaved REGs. The PDCCH / DCI is transmitted on the interleaved REGs.

[0131] Optionally, each group can use the same interleaving pattern. Alternatively, multiple interleaving patterns can exist, and different groups can use different interleaving patterns. For example, the first group uses interleaving pattern 1, the second group uses interleaving pattern 2, the third group uses interleaving pattern 1, the fourth group uses interleaving pattern 4, and so on. Or, for another example, the first group uses interleaving pattern 1, the second group does not interleave, the third group uses interleaving pattern 1, the fourth group does not interleave, and so on.

[0132] In one embodiment, the interleaving method can be as described in the example above, and will not be repeated here for the sake of brevity.

[0133] In this way, a low-bandwidth UE can receive only one transmission, while a high-bandwidth UE can receive multiple repetitions, thus improving the performance of high-bandwidth UEs while satisfying the multiplexing requirements of both low-bandwidth and high-bandwidth UEs.

[0134] Additionally, Example 5 groups the data according to the number of REGs occupied by the PDCCH / DCI. In some embodiments, grouping can also be based on CCE, CCE group, aggregation level, maximum REG bundle, minimum mother code length, maximum mother code length, and other grouping parameters described in other examples. After grouping, each group transmits one transmission of one PDCCH / DCI.

[0135] The third mapping method involves interleaving the discrete REGs within the CORESET before interleaving and mapping them to continuous RBs. The target RB, as the interleaved RB, is continuous, and the target RB corresponds to the discrete REGs within the CORESET before interleaving.

[0136] Figure 8 This is a schematic diagram illustrating the third mapping method, where discrete REGs before interleaving within a CORESET are interleaved and mapped to continuous RBs. For example... Figure 8 As shown, a PDCCH occupies a continuous segment of resources on the RB after interleaving. According to the mapping rules, we can infer the amount of REG on the corresponding CCE before interleaving. In other words, a PDCCH may occupy multiple CCEs, and each CCE occupies a portion of the REG.

[0137] For example, if PDCCH or DCI is transmitted on RB 6-11 after interleaving, it occupies REG#2,3,8,9,14,15 in the CORESET before interleaving. As another example, if PDCCH or DCI is transmitted on RB 0-5 after interleaving, it occupies REG#0,1,6,7,12,13 in the CORESET before interleaving.

[0138] It should be noted that using this data mapping rule makes the definition of aggregation level unsuitable for this scheme. Aggregation level is associated with CCE; aggregation level 1 represents one CCE, specifically CCE#1; aggregation level 2 represents two CCEs, CCE#1 and CCE#2. That is, they are arranged in CCE order. However, in the third mapping method, CCEs are not occupied in order; therefore, aggregation level and CCE do not correspond. Alternatively, this data mapping rule also applies to the definition of aggregation level. The aggregation level corresponds to the number of REG / RBs occupied by the PDCCH after interleaving.

[0139] In some embodiments, six consecutive RB / REGs after interleaving constitute the same CCE. That is, the REGs before interleaving for a CCE are discrete, while the corresponding REGs after interleaving are continuous. For example... Figure 9 This is a schematic diagram of another method corresponding to the third mapping method, which involves interleaving and mapping discrete REGs before interleaving within the CORESET to continuous RBs.

[0140] In one embodiment, when CCEs are not mapped contiguously, the aggregation level is determined according to the number of REGs occupied by the PDCCH or DCI. For example, if the number of REGs is A, then the aggregation level is A / 6.

[0141] In one embodiment, PDCCH or DCI must contain REG 0 in CORESET.

[0142] In one embodiment, the PDCCH or DCI must contain the interleaved RB 0.

[0143] In one embodiment, a CORESET includes at least one sub-CORESET, and a target RB corresponds to one or more sub-CORESETs; REGs within a sub-CORESET are interleaved within the sub-CORESET, and REGs within a sub-CORESET are not interleaved with REGs in other sub-CORESETs; or, REGs within a sub-CORESET are interleaved or not interleaved within the sub-CORESET, and multiple sub-CORESETs are interleaved.

[0144] In one embodiment, a CORESET includes at least one sub-CORESET, which contains a total of Rf REGs, and the number of REG bundles is L. That is, one REG bundle contains L REGs. The number of interleaver lines is R, where R is predefined or signaled.

[0145] For a REG bundle i, it contains REG{i*L,i*L+1,...,i*L+L-1}, where i = 0, 1,...,Rf / L-1. CCE j contains REG bundles{f(6*j / L),f(6*j / L+1),...,f(6*j / L+6 / L-1)}, where f(.) is the interleaving function.

[0146] f(x) = (rC + c + n) shift )mod(Rf / L)

[0147] x = cR + 1

[0148] r = 0, 1, ..., R-1

[0149] c = 0, 1, ..., C-1

[0150] C = Rf / (LR)

[0151] Where, n shift For predefined or signaling indications.

[0152] In other words, each sub-CORESET is interwoven according to the above content.

[0153] S320. Receive the Physical Downlink Control Channel (PDCCH) on at least a portion of the target RBs.

[0154] In one embodiment, the first communication node may receive the PDCCH on some of the target RBs. Alternatively, the first communication node may receive the PDCCH on all of the target RBs.

[0155] In one embodiment, the channel reception method provided in this application takes effect only when at least one of the following conditions is met; that is, the channel reception method provided in this application is executed only when at least one of the following conditions is met, otherwise existing technology is used. Alternatively, the first type of interleaving method is used only when at least one of the following conditions is met, otherwise the first type of interleaving method is used:

[0156] CORESET is configured for at least one of the following: LPWA terminal devices, lightweight terminal devices, and mobile terminal devices;

[0157] CORESET’s first frequency domain is configured for at least one of the LPWA terminal device, lightweight terminal device, and mobile terminal device.

[0158] The aggregation level of PDCCH is greater than 1;

[0159] The number of CCEs in PDCCH is greater than 1;

[0160] The REG bundle of PDCCH is less than 6;

[0161] The REG bundle of PDCCH is greater than or equal to 6.

[0162] Figure 10 This is a flowchart illustrating a channel transmission method provided in one embodiment. For example... Figure 10 As shown, the method provided in this embodiment is applicable to a second communication node (also referred to as a second communication node device, a second node, or a second device). For example, the second communication node can be an access network device. The method includes the following steps.

[0163] S910. Based on the mapping method of the control resource set CORESET, determine the target resource block RB, and the target RB occupies the first bandwidth.

[0164] The target RB is the actual frequency domain resource that the PDCCH may correspond to. That is, the RBs corresponding to the CCE / REG occupied by the PDCCH are a subset of the target RBs. The target RB occupies the first bandwidth. Here, the first bandwidth can be a small bandwidth; or the number of RBs included in the first bandwidth is a first quantity, which is a predefined quantity or N_RB_min; N_RB_min is the number of RBs corresponding to the minimum bandwidth of the system, or the number of RBs corresponding to the bandwidth supported by the terminal device (such as the minimum bandwidth), or the number of RBs corresponding to the bandwidth supported by the first type of terminal device, or the number of RBs corresponding to the maximum bandwidth supported by the first type of terminal device, or the number of RBs corresponding to the maximum PDCCH bandwidth supported by the first type of terminal device, or a predefined value.

[0165] In one embodiment, the target RB can be a continuous RB or a discontinuous RB.

[0166] In one embodiment, the mapping method of CORESET may include at least one of the following: a first mapping method, a second mapping method, and a third mapping method.

[0167] In one embodiment, the mapping mode of CORESET is a first mapping mode when at least one of the following conditions is met, wherein the first mapping mode indicates that the mapping from resource element group REG to RB within CORESET is not interleaved:

[0168] The first communication node is at least one of a low-power wide-area LPWA terminal device, a lightweight terminal device, and a mobile terminal device;

[0169] CORESET is applicable to at least one of the following: LPWA terminal devices, lightweight terminal devices, and mobile terminal devices;

[0170] The signaling indicates that the mapping method of CORESET is the first mapping method, and the signaling is at least one of the following: main information block (MIB) signaling, system information block (SIB) signaling, radio resource control (RRC) signaling, signaling in physical broadcast channel (PBCH), secondary synchronization signal (SSS) signaling, synchronization signal block (SSB) signaling, and primary synchronization signal (PSS) signaling.

[0171] The number of RBs occupied by PDCCH is less than or equal to the first quantity;

[0172] The predefined mapping method for CORESET is the first mapping method.

[0173] In one embodiment, the mapping method of CORESET is a second mapping method, which includes grouping CORESET and interleaving between groups and / or within groups of CORESET, wherein REGs in each group of CORESET are continuous.

[0174] In one embodiment, the target RB corresponds to a group of CORESET;

[0175] In CORESET, REGs within each group are interleaved, but not between groups; or...

[0176] In CORESET, REGs within each group are not interleaved, but those between groups are interleaved; or...

[0177] CORESET performs interleaving of REGs within each group and interleaving between groups.

[0178] In one embodiment, the target RB corresponds to multiple groups of CORESET; REGs within a group of CORESET are interleaved, but not between groups.

[0179] In one embodiment, CORESET is grouped according to N_RB_min, where N_RB_min is the number of RBs corresponding to the minimum bandwidth of the system, or the number of RBs corresponding to the bandwidth supported by the terminal device, or the number of RBs corresponding to the bandwidth supported by the first type of terminal device, or the number of RBs corresponding to the maximum bandwidth supported by the first type of terminal device, or the number of RBs corresponding to the maximum PDCCH bandwidth supported by the first type of terminal device, or a predefined value; or...

[0180] CORESET groups REGs according to the number of REGs included in the minimum aggregation level; or,

[0181] CORESET groups REGs according to the number of REGs included in the smallest divisor of the aggregation level; or...

[0182] CORESET groups REGs according to the largest approximation of the aggregation level.

[0183] In one embodiment, when CORESET is grouped according to N_RB_min, CORESET includes When there are REGs, any of the following characteristics must be satisfied:

[0184] for If the number of REGs in each group is divisible by N_RB_min, then the number of REGs in each group is N_RB_min.

[0185] for For cases where N_RB_min is not divisible, CORESET is divided into A+1 groups. The number of REGs in group A is N_RB_min, and the number of REGs in group 1 is...

[0186] for For cases where N_RB_min is not divisible, CORESET is divided into A groups. The number of REGs in groups B is N_RB_min, and the number of REGs in the remaining groups A and B is N_RB_min-1.

[0187] In one embodiment, the target RB corresponds to a specific group of CORESET.

[0188] In one embodiment, any of the following features are satisfied:

[0189] A specific group contains more REGs or resource element bundles than other groups contain more REGs or REG bundles.

[0190] The REG corresponding to a specific group is located in the middle frequency domain of the frequency domain where CORESET is located;

[0191] Except for certain groups, other groups include the same number of REGs or REG bundles.

[0192] In one embodiment, the interleaver function is f(x), x = 0, 1, 2, ..., P-1; P is the number of REGs included in CORESET;

[0193] When x≤N1 or x≥N2, f(x)=x; N1 and N2 are the numbers of the REGs before interleaving included in CORESET, N1<N2.

[0194] In one embodiment, CORESET includes a first frequency domain position, and the target RB corresponds to the first frequency domain position.

[0195] In one embodiment, the REG-to-RB mapping before interleaving at the first frequency domain location is performed by first type of interleaving, while the REG-to-RB mapping before interleaving at other frequency domain locations is performed by second type of interleaving or is not interleaved.

[0196] In one embodiment, the frequency domain start point of the first frequency domain location is indicated by an offset value that indicates the offset of the frequency domain start point of the first frequency domain location relative to one of the following: the start point location of CORESET, the frequency domain start point location of SSB, Point A, or the frequency domain start point location of the Initial Bandwidth Part (Initial BWP).

[0197] In one embodiment, a CORESET includes M REGs, a PDCCH occupies N REGs, and the CORESET is divided into C groups. Within a CORESET, the PDCCH is repeated C times, and each CORESET group includes one repetition of the PDCCH.

[0198] In one embodiment, the mapping method of CORESET is a third mapping method, which includes mapping the discrete pre-interleaving REGs in CORESET to continuous RBs; the target RB corresponds to the discrete pre-interleaving REGs in CORESET.

[0199] In one embodiment, a CORESET includes at least one sub-CORESET, and a target RB corresponds to one or more sub-CORESETs;

[0200] REGs within a sub-CORESET are interleaved within the sub-CORESET, but REGs within a sub-CORESET are not interleaved with REGs within other sub-CORESETs; or, REGs within a sub-CORESET may or may not be interleaved within the sub-CORESET, and may be interleaved between multiple sub-CORESETs.

[0201] S920, Transmit the Physical Downlink Control Channel (PDCCH) on at least some of the target RBs.

[0202] In one embodiment, the second communication node may transmit the PDCCH on some of the target RBs. Alternatively, the second communication node may transmit the PDCCH on all target RBs.

[0203] In one embodiment, the channel transmission method provided in this application only takes effect when at least one of the following conditions is met; that is, the channel transmission method provided in this application is executed only when at least one of the following conditions is met, otherwise existing technology is used. Alternatively, a first type of interleaving is used when at least one of the following conditions is met, otherwise a second type of interleaving is used:

[0204] CORESET is configured for at least one of the following: LPWA terminal devices, lightweight terminal devices, and mobile terminal devices;

[0205] CORESET’s first frequency domain is configured for at least one of the LPWA terminal device, lightweight terminal device, and mobile terminal device.

[0206] The aggregation level of PDCCH is greater than 1;

[0207] The number of CCEs in PDCCH is greater than 1;

[0208] The REG bundle of PDCCH is less than 6;

[0209] The REG bundle of PDCCH is greater than or equal to 6.

[0210] In some embodiments, the second type of interleaving is a method of determining the REG by full-bandwidth interleaving within the CORESET. Alternatively, the second type of interleaving is... Figure 1 The methods described in the application. The first type of interleaving method is the other methods described in this application.

[0211] In some embodiments, the first type of interleaving and the second type of interleaving simply describe two different interleaving methods.

[0212] Figure 11 This is a schematic diagram of a channel receiving device provided in one embodiment. This device can be configured in a first communication node, such as... Figure 11 As shown, the device includes a first mapping module 1001 and a first communication module 1002.

[0213] The first mapping module 1001 is configured to determine the target resource block RB according to the mapping method of the control resource set CORESET, and the target RB occupies the first bandwidth;

[0214] The first communication module 1002 is configured to receive the physical downlink control channel (PDCCH) on at least a portion of the target RBs.

[0215] The channel receiving device provided in this embodiment is for implementing... Figure 3 The channel receiving method of the embodiment shown is similar in principle and technical effect to the channel receiving device provided in this embodiment, and will not be repeated here.

[0216] In one embodiment, the number of RBs included in the first bandwidth is a first quantity, which is a predefined quantity or N_RB_min;

[0217] N_RB_min is the number of RBs corresponding to the minimum bandwidth of the system, or the number of RBs corresponding to the bandwidth supported by the terminal device, or the number of RBs corresponding to the bandwidth supported by the first type of terminal device, or the number of RBs corresponding to the maximum bandwidth supported by the first type of terminal device, or the number of RBs corresponding to the maximum PDCCH bandwidth supported by the first type of terminal device, or a predefined value.

[0218] In one embodiment, the mapping method of CORESET is a first mapping method when at least one of the following conditions is met, wherein the first mapping method includes not interleaving the resource element group REG within CORESET:

[0219] The first communication node is at least one of a low-power wide-area LPWA terminal device, a lightweight terminal device, and a mobile terminal device;

[0220] CORESET is applicable to at least one of the following: LPWA terminal devices, lightweight terminal devices, and mobile terminal devices;

[0221] The signaling indicates that the mapping method of CORESET is the first mapping method, and the signaling is at least one of the following: main information block (MIB) signaling, system information block (SIB) signaling, radio resource control (RRC) signaling, signaling in physical broadcast channel (PBCH), secondary synchronization signal (SSS) signaling, synchronization signal block (SSB) signaling, and primary synchronization signal (PSS) signaling.

[0222] The number of RBs occupied by PDCCH is less than or equal to the first quantity;

[0223] The predefined mapping method for CORESET is the first mapping method.

[0224] In one embodiment, the mapping method of CORESET is a second mapping method, which includes grouping CORESET and interleaving between groups and / or within groups of CORESET, wherein REGs in each group of CORESET are continuous.

[0225] In one embodiment, the target RB corresponds to a group of CORESET;

[0226] In CORESET, REGs within each group are interleaved, but not between groups; or...

[0227] In CORESET, REGs within each group are not interleaved, but those between groups are interleaved; or...

[0228] CORESET performs interleaving of REGs within each group and interleaving between groups.

[0229] In one embodiment, the target RB corresponds to multiple groups of CORESET; REGs within a group of CORESET are interleaved, but not between groups.

[0230] In one embodiment, CORESET is grouped according to N_RB_min, where N_RB_min is the number of RBs corresponding to the minimum bandwidth of the system, or the number of RBs corresponding to the bandwidth supported by the terminal device, or the number of RBs corresponding to the bandwidth supported by the first type of terminal device, or the number of RBs corresponding to the maximum bandwidth supported by the first type of terminal device, or the number of RBs corresponding to the maximum PDCCH bandwidth supported by the first type of terminal device, or a predefined value; or...

[0231] CORESET groups REGs according to the number of REGs included in the minimum aggregation level; or,

[0232] CORESET groups REGs according to the number of REGs included in the smallest divisor of the aggregation level; or...

[0233] CORESET groups REGs according to the largest approximation of the aggregation level.

[0234] In one embodiment, when CORESET is grouped according to N_RB_min, CORESET includes When there are REGs, any of the following characteristics must be satisfied:

[0235] for If the number of REGs in each group is divisible by N_RB_min, then the number of REGs in each group is N_RB_min.

[0236] for For cases where N_RB_min is not divisible, CORESET is divided into A+1 groups. The number of REGs in group A is N_RB_min, and the number of REGs in group 1 is...

[0237] for For cases where N_RB_min is not divisible, CORESET is divided into A groups. The number of REGs in groups B is N_RB_min, and the number of REGs in the remaining groups A and B is N_RB_min-1.

[0238] In one embodiment, the target RB corresponds to a specific group of CORESET.

[0239] In one embodiment, any of the following features are satisfied:

[0240] A specific group contains more REGs or resource element bundles than other groups contain more REGs or REG bundles.

[0241] The REG corresponding to a specific group is located in the middle frequency domain of the frequency domain where CORESET is located;

[0242] Except for certain groups, other groups include the same number of REGs or REG bundles.

[0243] In one embodiment, the interleaver function is f(x), x = 0, 1, 2, ..., P-1; P is the number of REGs included in CORESET;

[0244] When x≤N1 or x≥N2, f(x)=x; N1 and N2 are the numbers of the REGs before interleaving included in CORESET, N1<N2.

[0245] In one embodiment, CORESET includes a first frequency domain position, and the target RB corresponds to the first frequency domain position.

[0246] In one embodiment, the REG-to-RB mapping before interleaving at the first frequency domain location is performed by first type of interleaving, while the REG-to-RB mapping before interleaving at other frequency domain locations is performed by second type of interleaving or is not interleaved.

[0247] In one embodiment, the frequency domain start point of the first frequency domain location is indicated by an offset value that indicates the offset of the frequency domain start point of the first frequency domain location relative to one of the following: the start point location of CORESET, the frequency domain start point location of SSB, Point A, or the frequency domain start point location of the Initial Bandwidth Part (Initial BWP).

[0248] In one embodiment, a CORESET includes M REGs, a PDCCH occupies N REGs, and the CORESET is divided into C groups. Within a CORESET, the PDCCH is repeated C times, and each CORESET group includes one repetition of the PDCCH.

[0249] In one embodiment, the mapping method of CORESET is a third mapping method, which includes mapping the discrete pre-interleaving REGs in CORESET to continuous RBs; the target RB corresponds to the discrete pre-interleaving REGs in CORESET.

[0250] In one embodiment, a CORESET includes at least one sub-CORESET, and a target RB corresponds to one or more sub-CORESETs;

[0251] REGs within a sub-CORESET are interleaved within the sub-CORESET, but REGs within a sub-CORESET are not interleaved with REGs within other sub-CORESETs; or, REGs within a sub-CORESET may or may not be interleaved within the sub-CORESET, and may be interleaved between multiple sub-CORESETs.

[0252] Figure 12 This is a schematic diagram of a channel transmission device provided in one embodiment. This device can be configured in a second communication node, such as... Figure 12 As shown, the device includes: a second mapping module 2001 and a second communication module 2002.

[0253] The second mapping module 2001 is configured to determine the target resource block RB according to the mapping method of the control resource set CORESET, and the target RB occupies the first bandwidth;

[0254] The second communication module 2002 is configured to transmit the physical downlink control channel (PDCCH) on at least a portion of the target RBs.

[0255] The channel receiving device provided in this embodiment is for implementing... Figure 10 The channel transmission method of the illustrated embodiment and the channel transmission device provided in this embodiment are similar in principle and technical effect to those of the above embodiments, and will not be repeated here.

[0256] In one embodiment, the number of RBs included in the first bandwidth is a first quantity, which is a predefined quantity or N_RB_min;

[0257] N_RB_min is the number of RBs corresponding to the minimum bandwidth of the system, or the number of RBs corresponding to the bandwidth supported by the terminal device, or the number of RBs corresponding to the bandwidth supported by the first type of terminal device, or the number of RBs corresponding to the maximum bandwidth supported by the first type of terminal device, or the number of RBs corresponding to the maximum PDCCH bandwidth supported by the first type of terminal device, or a predefined value.

[0258] In one embodiment, the mapping method of CORESET is a first mapping method when at least one of the following conditions is met, wherein the first mapping method includes not interleaving the resource element group REG within CORESET:

[0259] The first communication node is at least one of a low-power wide-area LPWA terminal device, a lightweight terminal device, and a mobile terminal device;

[0260] CORESET is applicable to at least one of the following: LPWA terminal devices, lightweight terminal devices, and mobile terminal devices;

[0261] The signaling indicates that the mapping method of CORESET is the first mapping method, and the signaling is at least one of the following: main information block (MIB) signaling, system information block (SIB) signaling, radio resource control (RRC) signaling, signaling in physical broadcast channel (PBCH), secondary synchronization signal (SSS) signaling, synchronization signal block (SSB) signaling, and primary synchronization signal (PSS) signaling.

[0262] The number of RBs occupied by PDCCH is less than or equal to the first quantity;

[0263] The predefined mapping method for CORESET is the first mapping method.

[0264] In one embodiment, the mapping method of CORESET is a second mapping method, which includes grouping CORESET and interleaving between groups and / or within groups of CORESET, wherein REGs in each group of CORESET are continuous.

[0265] In one embodiment, the target RB corresponds to a group of CORESET;

[0266] In CORESET, REGs within each group are interleaved, but not between groups; or...

[0267] In CORESET, REGs within each group are not interleaved, but those between groups are interleaved; or...

[0268] CORESET performs interleaving of REGs within each group and interleaving between groups.

[0269] In one embodiment, the target RB corresponds to multiple groups of CORESET; REGs within a group of CORESET are interleaved, but not between groups.

[0270] In one embodiment, CORESET is grouped according to N_RB_min, where N_RB_min is the number of RBs corresponding to the minimum bandwidth of the system, or the number of RBs corresponding to the bandwidth supported by the terminal device, or the number of RBs corresponding to the bandwidth supported by the first type of terminal device, or the number of RBs corresponding to the maximum bandwidth supported by the first type of terminal device, or the number of RBs corresponding to the maximum PDCCH bandwidth supported by the first type of terminal device, or a predefined value; or...

[0271] CORESET groups REGs according to the number of REGs included in the minimum aggregation level; or,

[0272] CORESET groups REGs according to the number of REGs included in the smallest divisor of the aggregation level; or...

[0273] CORESET groups REGs according to the largest approximation of the aggregation level.

[0274] In one embodiment, when CORESET is grouped according to N_RB_min, CORESET includes When there are REGs, any of the following characteristics must be satisfied:

[0275] for If the number of REGs in each group is divisible by N_RB_min, then the number of REGs in each group is N_RB_min.

[0276] for For cases where N_RB_min is not divisible, CORESET is divided into A+1 groups. The number of REGs in group A is N_RB_min, and the number of REGs in group 1 is...

[0277] for For cases where N_RB_min is not divisible, CORESET is divided into A groups. The number of REGs in groups B is N_RB_min, and the number of REGs in the remaining groups A and B is N_RB_min-1.

[0278] In one embodiment, the target RB corresponds to a specific group of CORESET.

[0279] In one embodiment, any of the following features are satisfied:

[0280] A specific group contains more REGs or resource element bundles than other groups contain more REGs or REG bundles.

[0281] The REG corresponding to a specific group is located in the middle frequency domain of the frequency domain where CORESET is located;

[0282] Except for certain groups, other groups include the same number of REGs or REG bundles.

[0283] In one embodiment, the interleaver function is f(x), x = 0, 1, 2, ..., P-1; P is the number of REGs included in CORESET;

[0284] When x≤N1 or x≥N2, f(x)=x; N1 and N2 are the numbers of the REGs before interleaving included in CORESET, N1<N2.

[0285] In one embodiment, CORESET includes a first frequency domain position, and the target RB corresponds to the first frequency domain position.

[0286] In one embodiment, the REG-to-RB mapping before interleaving at the first frequency domain location is performed by first type of interleaving, while the REG-to-RB mapping before interleaving at other frequency domain locations is performed by second type of interleaving or is not interleaved.

[0287] In one embodiment, the frequency domain start point of the first frequency domain location is indicated by an offset value that indicates the offset of the frequency domain start point of the first frequency domain location relative to one of the following: the start point location of CORESET, the frequency domain start point location of SSB, Point A, or the frequency domain start point location of the Initial Bandwidth Part (Initial BWP).

[0288] In one embodiment, a CORESET includes M REGs, a PDCCH occupies N REGs, and the CORESET is divided into C groups. Within a CORESET, the PDCCH is repeated C times, and each CORESET group includes one repetition of the PDCCH.

[0289] In one embodiment, the mapping method of CORESET is a third mapping method, which includes mapping the discrete pre-interleaving REGs in CORESET to continuous RBs; the target RB corresponds to the discrete pre-interleaving REGs in CORESET.

[0290] In one embodiment, a CORESET includes at least one sub-CORESET, and a target RB corresponds to one or more sub-CORESETs;

[0291] REGs within a sub-CORESET are interleaved within the sub-CORESET, but REGs within a sub-CORESET are not interleaved with REGs within other sub-CORESETs; or, REGs within a sub-CORESET may or may not be interleaved within the sub-CORESET, and may be interleaved between multiple sub-CORESETs.

[0292] This application also provides a communication node, including a processor, which is configured to implement the methods provided in any embodiment of this application when executing a computer program. Exemplary embodiments below provide schematic diagrams of the communication node as a base station and a UE, respectively.

[0293] Figure 13This is a schematic diagram of the structure of a UE provided in one embodiment. The UE can be implemented in various forms. The UE in this application can include, but is not limited to, mobile terminal devices such as mobile phones, smartphones, laptops, digital broadcast receivers, personal digital assistants (PDAs), tablet computers (PADs), portable media players (PMPs), navigation devices, in-vehicle terminal devices, in-vehicle display terminals, in-vehicle electronic rearview mirrors, etc., as well as fixed terminal devices such as digital television (TV), desktop computers, etc.

[0294] like Figure 13 As shown, 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, etc. Figure 13 The UE shown includes a variety of components; however, it should be understood that it is not required to implement all of the components shown. More or fewer components may be implemented alternatively.

[0295] In this embodiment, the wireless communication unit 51 allows the UE 50 to communicate wirelessly with a base station or network. The A / V input unit 52 is configured to receive audio or video signals. The user input unit 53 can generate key input data to control various operations of the UE 50 based on user-input commands. The sensing unit 54 detects the current state of the UE 50, the position of the UE 50, the presence or absence of user touch input to the UE 50, the orientation of the UE 50, the acceleration or deceleration of the UE 50, and its direction, etc., and generates commands or signals for controlling the operation of the UE 50. The interface unit 57 serves as an interface through which at least one external device can connect to the UE 50. The output unit 55 is configured to provide output signals in a visual, audio, and / or tactile manner. The memory 56 can store software programs, etc., that perform processing and control operations executed by the processor 58, or can temporarily store data that has been output or will be output. The memory 56 can include at least one type of storage medium. Moreover, the UE 50 can cooperate with a network storage device that performs the storage function of the memory 56 via a network connection. Processor 58 typically controls the overall operation of UE 50. Power supply unit 59, under the control of processor 58, receives external or internal power and provides the appropriate power required to operate various components and assemblies.

[0296] The processor 58 executes at least one functional application and data processing by running a program stored in the memory 56, such as implementing the method provided in the embodiments of this application.

[0297] Figure 14 This is a schematic diagram of the structure of a base station provided in one embodiment, such as... Figure 14 As shown, the base station includes a processor 60, a memory 61, and a communication interface 62; the number of processors 60 in the base station can be one or more. Figure 14 Taking a processor 60 as an example; the processor 60, memory 61, and communication interface 62 in the base station can be connected via a bus or other means. Figure 13 Taking the bus connection as an example, a bus can refer to one or more of several bus architectures, including a memory bus or memory controller, a peripheral bus, a graphics acceleration port, a processor, or a local bus that uses any of the various bus architectures.

[0298] The memory 61, as a computer-readable storage medium, can be configured to store software programs, computer-executable programs, and modules, such as the program instructions / modules corresponding to the methods in the embodiments of this application. The processor 60 executes at least one functional application and data processing of the base station by running the software programs, instructions, and modules stored in the memory 61, thereby implementing the methods described above.

[0299] The memory 61 may include a program storage area and a data storage area. The program storage area may store the operating system and applications required for at least one function; the data storage area may store data created based on the use of the terminal. Furthermore, the memory 61 may include high-speed random access memory and may also include non-volatile memory, such as at least one disk storage device, flash memory device, or other non-volatile solid-state storage device. In some instances, the memory 61 may include memory remotely located relative to the processor 60, and this remote memory may be connected to a base station via a network. Examples of such networks include, but are not limited to, the Internet, corporate intranets, networks, mobile communication networks, and combinations thereof.

[0300] Communication interface 62 can be configured to receive and send data.

[0301] This application also provides a computer-readable storage medium storing a computer program that, when executed by a processor, implements the methods provided in any embodiment of this application.

[0302] The computer storage medium in this application embodiment can be any combination of one or more computer-readable media. The computer-readable medium can be a computer-readable signal medium or a computer-readable storage medium. For example, a computer-readable storage medium can be, but is not limited to, an electrical, magnetic, optical, electromagnetic, infrared, or semiconductor system, apparatus, or device, or any combination thereof. Computer-readable storage media include (a non-exhaustive list): electrical connections having one or more wires, portable computer disks, hard disks, random access memory (RAM), read-only memory (ROM), electrically erasable, programmable read-only memory (EPROM), flash memory, optical fiber, portable compact disc read-only memory (CD-ROM), optical storage devices, magnetic storage devices, or any suitable combination thereof. In this application, the computer-readable storage medium can be any tangible medium containing or storing a program that can be used by or in conjunction with an instruction execution system, apparatus, or device.

[0303] Computer-readable signal media may include data signals propagated in baseband or as part of a carrier wave, the data signals carrying computer-readable program code. Such propagated data signals may take various forms, including but not limited to electromagnetic signals, optical signals, or any suitable combination thereof. Computer-readable signal media may also be any computer-readable medium other than computer-readable storage media, which can send, propagate, or transmit programs for use by or in conjunction with an instruction execution system, apparatus, or device.

[0304] Program code contained on a computer-readable medium may be transmitted using any suitable medium, including but not limited to wireless, wire, optical fiber, radio frequency (RF), or any suitable combination thereof.

[0305] Computer program code for performing the operations of this disclosure can be written in one or more programming languages ​​or a combination of programming languages, including object-oriented programming languages ​​(such as Java, Smalltalk, C++, Ruby, and Go) and conventional procedural programming languages ​​(such as the "C" language or similar programming languages). The program code can be executed entirely on the user's computer, partially on the user's computer, as a standalone software package, partially on the user's computer and partially on a remote computer, or entirely on a remote computer or server. In cases involving remote computers, the remote computer can be connected to the user's computer via any type of network (including a Local Area Network (LAN) or a Wide Area Network (WAN)), or it can be connected to an external computer (e.g., via the Internet using an Internet service provider).

[0306] This invention also provides a computer program product, including a computer program that, when executed by a processor, implements the method provided in any embodiment of this invention.

[0307] In implementing the computer program product, computer program code for performing the operations of this invention can be written in one or more programming languages ​​or a combination thereof. Programming languages ​​include object-oriented programming languages ​​such as Java, Smalltalk, and C++, as well as conventional procedural programming languages ​​such as C or similar languages. The program code can be executed entirely on the user's computer, partially on the user's computer, as a standalone software package, partially on the user's computer and partially on a remote computer, or entirely on a remote computer or server. In cases involving remote computers, the remote computer can be connected to the user's computer via any type of network—including a local area network (LAN) or a wide area network (WAN)—or can be connected to an external computer (e.g., via the Internet using an Internet service provider).

[0308] Those skilled in the art will understand that the term user terminal encompasses any suitable type of wireless user equipment, such as mobile phones, portable data processing devices, portable web browsers, or vehicle-mounted mobile stations.

[0309] Generally, the various embodiments of this application can be implemented in hardware or dedicated circuitry, software, logic, or any combination thereof. For example, some aspects can be implemented in hardware, while others can be implemented in firmware or software that can be executed by a controller, microprocessor, or other computing device, although this application is not limited thereto.

[0310] Embodiments of this application can be implemented by executing computer program instructions through the data processor of a mobile device, for example, in a processor entity, or through hardware, or through a combination of software and hardware. The computer program instructions can be assembly instructions, Instruction Set Architecture (ISA) instructions, machine instructions, machine-dependent instructions, microcode, firmware instructions, status setting data, or source code or object code written in any combination of one or more programming languages.

[0311] Any block diagram of logical flow in the accompanying drawings 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 in 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 Multifunction Discs, DVDs, or CDs), etc. Computer-readable media may include non-transitory storage media. 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), field-programmable gate arrays (FPGAs), and processors based on multi-core processor architectures.

Claims

1. A channel receiving method, characterized in that, Applied to a first communication node, the method includes: Based on the mapping method of the control resource set CORESET, the target resource block RB is determined, and the target RB occupies the first bandwidth; Physical downlink control channel (PDCCH) is received on at least a portion of the target RB.

2. The method according to claim 1, characterized in that, The first bandwidth includes a first number of RBs, which is a predefined number or N_RB_min; The N_RB_min is the number of RBs corresponding to the minimum bandwidth of the system, or the number of RBs corresponding to the bandwidth supported by the terminal device, or the number of RBs corresponding to the bandwidth supported by the first type of terminal device, or the number of RBs corresponding to the maximum bandwidth supported by the first type of terminal device, or the number of RBs corresponding to the maximum PDCCH bandwidth supported by the first type of terminal device, or a predefined value.

3. The method according to claim 1, characterized in that, The mapping method of the CORESET is the first mapping method when at least one of the following conditions is met, wherein the first mapping method includes that the resource element group REG within the CORESET is not interleaved: The first communication node is at least one of a low-power wide-area LPWA terminal device, a lightweight terminal device, and a mobile terminal device; The CORESET is applicable to at least one of LPWA terminal devices, lightweight terminal devices, and mobile terminal devices; The signaling indicates that the mapping method of the CORESET is the first mapping method, and the signaling is at least one of the following: Master Information Block (MIB) signaling, System Information Block (SIB) signaling, Radio Resource Control (RRC) signaling, signaling in the Physical Broadcast Channel (PBCH), Secondary Synchronization Signal (SSS) signaling, Synchronization Signal Block (SSB) signaling, and Primary Synchronization Signal (PSS) signaling. The number of RBs occupied by the PDCCH is less than or equal to the first number; The mapping method of the CORESET is predefined as the first mapping method.

4. The method according to claim 1, characterized in that, The mapping method of the CORESET is the second mapping method, which includes grouping the CORESET and interleaving between groups and / or within groups of the CORESET, wherein the REGs in each group of the CORESET are continuous.

5. The method according to claim 4, characterized in that, The target RB corresponds to a group of the CORESET; The REGs within each group of the CORESET are interleaved, but not between groups; or, The REGs within each group of the CORESET are not interleaved, but are interleaved between groups. or, The REGs within each group of the CORESET are interleaved, and the REGs between groups are interleaved.

6. The method according to claim 4, characterized in that, The target RB corresponds to multiple groups of the CORESET; the REGs within the CORESET are interleaved, but not between groups.

7. The method according to claim 4, characterized in that, The CORESET is grouped according to N_RB_min, where N_RB_min is the number of RBs corresponding to the minimum system bandwidth, or the number of RBs corresponding to the bandwidth supported by the terminal device, or the number of RBs corresponding to the bandwidth supported by the first type of terminal device, or the number of RBs corresponding to the maximum bandwidth supported by the first type of terminal device, or the number of RBs corresponding to the maximum PDCCH bandwidth supported by the first type of terminal device, or a predefined value; or... The CORESET is grouped according to the number of REGs included in the minimum aggregation level; or, The CORESET is grouped according to the number of REGs included in the minimum divisor of the aggregation level; or... The CORESET is grouped according to the maximum number of REGs included in the aggregation level.

8. The method according to claim 7, characterized in that, When the CORESET is grouped according to N_RB_min, the CORESET includes When there are REGs, any of the following characteristics must be satisfied: for If the number of REGs in each group is divisible by N_RB_min, then the number of REGs in each group is N_RB_min. for If the CORESET cannot be divided by N_RB_min, then the CORESET is divided into A+1 groups. The number of REGs in group A is N_RB_min, and the number of REGs in group 1 is... for If the CORESET cannot be divided by N_RB_min, then the CORESET is divided into A groups. The number of REGs in groups B is N_RB_min, and the number of REGs in the remaining groups A and B is N_RB_min-1.

9. The method according to claim 4, characterized in that, The target RB corresponds to a specific group of the CORESET.

10. The method according to claim 9, characterized in that, Satisfy any of the following characteristics: The number of REGs or resource element bundles included in the specific group is greater than the number of REGs or REG bundles included in other groups; The REG corresponding to the specific group is located in the middle frequency domain of the frequency domain where CORESET is located; Except for the specific group, the other groups include the same number of REGs or REG bundles.

11. The method according to claim 4, characterized in that, The interleaver function is f(x), x = 0, 1, 2, ..., P-1; P is the number of REGs included in the CORESET; When x ≤ N1 or x ≥ N2, f(x) = x; N1 and N2 are the numbers of the pre-interleaving REGs included in the CORESET, and N1 < N2.

12. The method according to claim 4, characterized in that, The CORESET includes a first frequency domain position, and the target RB corresponds to the first frequency domain position.

13. The method according to claim 12, characterized in that, The REG-to-RB mapping before interleaving at the first frequency domain position undergoes first-type interleaving, while the REG-to-RB mapping before interleaving at other frequency domain positions undergoes second-type interleaving or no interleaving.

14. The method according to claim 12, characterized in that, The frequency domain start point of the first frequency domain location is indicated by an offset value, which indicates the offset of the frequency domain start point of the first frequency domain location relative to one of the following: the start point location of the CORESET, the frequency domain start point location of the SSB, Point A, and the frequency domain start point location of the Initial Bandwidth Part (Initial BWP).

15. The method according to claim 4, characterized in that, The CORESET includes M REGs, the PDCCH occupies N REGs, the CORESET is divided into C groups, the PDCCH is repeated C times within the CORESET, and each CORESET group includes one repetition of the PDCCH.

16. The method according to claim 1, characterized in that, The mapping method of the CORESET is the third mapping method, which includes mapping the discrete pre-interleaving REGs in the CORESET to continuous RBs; the target RB corresponds to the discrete pre-interleaving REGs in the CORESET.

17. The method according to claim 1, characterized in that, The CORESET includes at least one sub-CORESET, and the target RB corresponds to one or more of the sub-CORESETs; The REGs within a sub-CORESET are interleaved within that sub-CORESET, and the REGs within a sub-CORESET are not interleaved with REGs in other sub-CORESETs; or, the REGs within a sub-CORESET are interleaved or not interleaved within that sub-CORESET, and the multiple sub-CORESETs are interleaved with each other.

18. A channel transmission method, characterized in that, Applied to a second communication node, the method includes: Based on the mapping method of the control resource set CORESET, the target resource block RB is determined, and the target RB occupies the first bandwidth; Transmit the Physical Downlink Control Channel (PDCCH) on at least a portion of the target RBs.

19. The method according to claim 18, characterized in that, The first bandwidth includes a first number of RBs, which is a predefined number or N_RB_min; The N_RB_min is the number of RBs corresponding to the minimum bandwidth of the system, or the number of RBs corresponding to the bandwidth supported by the terminal device, or the number of RBs corresponding to the bandwidth supported by the first type of terminal device, or the number of RBs corresponding to the maximum bandwidth supported by the first type of terminal device, or the number of RBs corresponding to the maximum PDCCH bandwidth supported by the first type of terminal device, or a predefined value.

20. The method according to claim 18, characterized in that, The mapping method of the CORESET is the first mapping method when at least one of the following conditions is met, wherein the mapping from resource element group REG to RB within the CORESET is not interleaved: The first communication node is at least one of a low-power wide-area LPWA terminal device, a lightweight terminal device, and a mobile terminal device; The CORESET is applicable to at least one of low-power wide-area LPWA terminal devices, lightweight terminal devices, and mobile terminal devices; The signaling indicates that the mapping method of the CORESET is the first mapping method, and the signaling is at least one of the following: Master Information Block (MIB) signaling, System Information Block (SIB) signaling, Radio Resource Control (RRC) signaling, signaling in the Physical Broadcast Channel (PBCH), Secondary Synchronization Signal (SSS) signaling, Synchronization Signal Block (SSB) signaling, and Primary Synchronization Signal (PSS) signaling. The number of RBs occupied by the PDCCH is less than or equal to the first number; The mapping method of the CORESET is predefined as the first mapping method.

21. The method according to claim 18, characterized in that, The mapping method of the CORESET is the second mapping method, which includes grouping the CORESET and interleaving between groups and / or within groups of the CORESET, wherein the REGs in each group of the CORESET are continuous.

22. The method according to claim 18, characterized in that, The mapping method of the CORESET is the third mapping method, which includes mapping the discrete pre-interleaving REGs in the CORESET to continuous RBs; the target RB corresponds to the discrete pre-interleaving REGs in the CORESET.

23. The method according to claim 18, characterized in that, The CORESET includes at least one sub-CORESET, and the target RB corresponds to one or more of the sub-CORESETs; The REGs within a sub-CORESET are interleaved within that sub-CORESET, and the REGs within a sub-CORESET are not interleaved with REGs in other sub-CORESETs; or, the REGs within a sub-CORESET are interleaved or not interleaved within that sub-CORESET, and the multiple sub-CORESETs are interleaved with each other.

24. A communication node, characterized in that, include: processor; The processor is configured to implement the method as described in any one of claims 1-23 when executing a computer program.

25. A computer-readable storage medium storing a computer program, characterized in that, When the computer program is executed by a processor, it implements the method as described in any one of claims 1-23.

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