Search space resource determination method and apparatus, and terminal and network-side device

Abstract

The present application relates to the field of communications. Disclosed are a search space resource determination method and apparatus, and a terminal and a network-side device. The search space resource determination method in the embodiments of the present application comprises: a target device determining candidate physical downlink control channel (PDCCH) resources of a target search space on the basis of configuration information of a target control resource set and configuration information of the target search space, wherein the target control resource set comprises at least two control resource sub-sets, and the target search space is associated with the target control resource set.

Description

Methods, apparatus, terminals, and network-side equipment for determining resources in the search space

[0001] Cross-references to related applications

[0002] This application claims priority to Chinese Patent Application No. 202411842036.4, filed in China on December 13, 2024, the entire contents of which are incorporated herein by reference. Technical Field

[0003] This application belongs to the field of communication technology, and specifically relates to a method, apparatus, terminal and network-side equipment for determining resources in a search space. Background Technology

[0004] In communication systems, for the search space and control resource set, each candidate Physical Downlink Control Channel (PDCCH) spans a maximum of 3 symbols in the time domain. At the same time, both the different Control Channel Elements (CCEs) and the candidate PDCCHs are Frequency Division Multiplexed (FDM), which lacks flexibility in time domain configuration. This design scheme cannot support candidate PDCCHs with large aggregation levels when the bandwidth is small because the number of configurable FDM CCEs in a search space is relatively small, thus affecting the reliability of PDCCH resource transmission. Summary of the Invention

[0005] This application provides a method, apparatus, terminal, and network-side device for determining resources in the search space, which can solve the problem of poor reliability of PDCCH resource transmission.

[0006] Firstly, a method for determining resources in a search space is provided, including:

[0007] The target device determines the candidate physical downlink control channel (PDCCH) resources of the target search space based on the configuration information of the target control resource set and the configuration information of the target search space. The target control resource set includes at least two sub-control resource sets, and the target search space is associated with the target control resource set.

[0008] Secondly, a resource determination device for a search space is provided, comprising:

[0009] The processing module is used to determine the candidate physical downlink control channel (PDCCH) resources of the target search space based on the configuration information of the target control resource set and the configuration information of the target search space. The target control resource set includes at least two sub-control resource sets, and the target search space is associated with the target control resource set.

[0010] Thirdly, a resource determination apparatus for a search space is provided, the apparatus being configured to perform the steps of the method described in the first aspect.

[0011] Fourthly, a terminal is provided, the terminal including a processor and a memory, the memory storing a program or instructions executable on the processor, the program or instructions, when executed by the processor, implementing the steps of the method as described in the first aspect.

[0012] Fifthly, a terminal is provided, including a processor and a communication interface, wherein the processor is configured to determine candidate physical downlink control channel (PDCCH) resources of the target search space based on configuration information of a target control resource set and configuration information of a target search space, the target control resource set including at least two sub-control resource sets, and the target search space being associated with the target control resource set.

[0013] In a sixth aspect, a network-side device is provided, the network-side device including a processor and a memory, the memory storing a program or instructions executable on the processor, the program or instructions, when executed by the processor, implementing the steps of the method as described in the first aspect.

[0014] In a seventh aspect, a network-side device is provided, including a processor and a communication interface, wherein the processor is configured to determine candidate physical downlink control channel (PDCCH) resources of the target search space based on configuration information of a target control resource set and configuration information of a target search space, the target control resource set including at least two sub-control resource sets, and the target search space being associated with the target control resource set.

[0015] In an eighth aspect, a readable storage medium is provided, on which a program or instructions are stored, which, when executed by a processor, implement the steps of the method described in the first aspect.

[0016] A ninth aspect provides a wireless communication system, comprising: a terminal and a network-side device, wherein the terminal is configured to perform the steps of the method described in the first aspect, and the network-side device is configured to perform the steps of the method described in the first aspect.

[0017] In a tenth aspect, a chip is provided, the chip including a processor and a communication interface coupled to the processor, the processor being used to run programs or instructions to implement the method as described in the first aspect.

[0018] Eleventhly, a computer program / program product is provided, the computer program / program product being stored in a storage medium, the computer program / program product being executed by at least one processor to perform the steps of the method as described in the first aspect.

[0019] This application embodiment determines candidate Physical Downlink Control Channel (PDCCH) resources for a target search space based on the configuration information of a target control resource set and the configuration information of a target search space. The target control resource set includes at least two sub-control resource sets, and the target search space is associated with these target control resource sets. By configuring at least two sub-control resource sets for a target search space, the number of CCEs that can be configured for a search space is increased, improving the reliability of PDCCH resource transmission. Furthermore, this application embodiment also improves the flexibility of search space configuration. Attached Figure Description

[0020] Figure 1 is a block diagram of a wireless communication system applicable to an embodiment of this application;

[0021] Figure 2 is a flowchart illustrating a method for determining resources in a search space according to an embodiment of this application;

[0022] Figure 3 is a schematic diagram of the structure of a resource determination device for a search space provided in an embodiment of this application;

[0023] Figure 4 is a schematic diagram of the structure of a communication device provided in an embodiment of this application;

[0024] Figure 5 is a schematic diagram of the structure of a terminal provided in an embodiment of this application;

[0025] Figure 6 is a schematic diagram of the structure of a network-side device provided in an embodiment of this application. Detailed Implementation

[0026] The terms "first," "second," etc., used in this application are used to distinguish similar objects and not to describe a specific order or sequence. It should be understood that such terms can be used interchangeably where appropriate so that embodiments of this application can be implemented in orders other than those illustrated or described herein, and the objects distinguished by "first" and "second" are generally of the same class, not limited in number; for example, the first object can be one or more. Furthermore, "or" in this application indicates at least one of the connected objects. For example, the scope of protection for "A or B" covers at least three scenarios: Scenario 1: including A but not B; Scenario 2: including B but not A; Scenario 3: including both A and B. In addition, the terms "A and / or B," "at least one of A and B," and "at least one of A or B" also cover at least the above three scenarios. The character " / " generally indicates that the preceding and following objects are in an "or" relationship.

[0027] The term "instruction" in this application can be either a direct instruction (or explicit instruction) or an indirect instruction (or implicit instruction). A direct instruction can be understood as one in which the sender explicitly informs the receiver of specific information, the operation to be performed, or the requested result, etc., in the instruction sent. An indirect instruction can be understood as one in which the receiver determines the corresponding information based on the instruction sent by the sender, or makes a judgment and determines the operation to be performed or the requested result, etc., based on the judgment result.

[0028] It is worth noting that the technologies described in this application are not limited to Long Term Evolution (LTE) / LTE-Advanced (LTE-A) systems, but can also be used in other wireless communication systems, such as Code Division Multiple Access (CDMA), Time Division Multiple Access (TDMA), Frequency Division Multiple Access (FDMA), Orthogonal Frequency Division Multiple Access (OFDMA), Single-carrier Frequency-Division Multiple Access (SC-FDMA), or other systems. The terms "system" and "network" in this application are often used interchangeably, and the described technologies can be used with the systems and radio technologies mentioned above, as well as with other systems and radio technologies. The following description describes New Radio (NR) systems for illustrative purposes, and the term NR is used in most of the following description; however, these technologies can also be applied to systems other than NR systems, such as 6th generation (6G) radio systems. th Generation 6G communication system.

[0029] Figure 1 shows a block diagram of a wireless communication system applicable to an embodiment of this application. The wireless communication system includes a terminal 11 and a network-side device 12. The terminal 11 can be a mobile phone, tablet computer, laptop computer, notebook computer, personal digital assistant (PDA), handheld computer, netbook, ultra-mobile personal computer (UMPC), mobile internet device (MID), augmented reality (AR), virtual reality (VR) device, robot, wearable device, flight vehicle, vehicle user equipment (VUE), shipboard equipment, pedestrian user equipment (PUE), smart home (home devices with wireless communication capabilities, such as refrigerators, televisions, washing machines, or furniture), game console, personal computer (PC), ATM, or self-service machine, etc. Wearable devices include: smartwatches, smart bracelets, smart headphones, smart glasses, smart jewelry (smart bracelets, smart chains, smart rings, smart necklaces, smart anklets, smart anklets, etc.), smart wristbands, smart clothing, etc. Among these, in-vehicle devices can also be referred to as in-vehicle terminals, in-vehicle controllers, in-vehicle modules, in-vehicle components, in-vehicle chips, or in-vehicle units, etc. It should be noted that the specific type of terminal 11 is not limited in this application embodiment. Network-side equipment 12 may include access network equipment or core network equipment, wherein access network equipment may also be referred to as Radio Access Network (RAN) equipment, radio access network function, or radio access network unit. Access network equipment may include base stations, Wireless Local Area Network (WLAN) access points (APs), or Wireless Fidelity (WiFi) nodes, etc.The term "base station" can be referred to as Node B (NB), Evolved Node B (eNB), Next Generation Node B (gNB), New Radio Node B (NR Node B), Access Point, Relay Base Station (RBS), Serving Base Station (SBS), Base Transceiver Station (BTS), Radio Base Station, Radio Transceiver, Basic Service Set (BSS), Extended Service Set (ESS), Home Node B (HNB), Home Evolved Node B, Transmit / Receive Point (TRP), or any other suitable term in the relevant field, as long as the same technical effect is achieved. The term "base station" is not limited to any specific technical terminology. It should be noted that this application embodiment only uses a base station in an NR system as an example for description and does not limit the specific type of base station.

[0030] Core network equipment, also known as core network nodes, core network functions, or core network elements, includes, but is not limited to, at least one of the following: Mobility Management Entity (MME), Access and Mobility Management Function (AMF), Session Management Function (SMF), User Plane Function (UPF), Policy Control Function (PCF), Policy and Charging Rules Function (PCRF), Edge Application Server Discovery Function (EASDF), Unified Data Management (UDM), Unified Data Repository (UDR), Home Subscriber Server (HSS), Centralized network configuration (CNC), Network Repository Function (NRF), Network Exposure Function (NEF), Local NEF (or L-NEF), and Binding Support. The core network functions include: BSF (Block Network Function), Application Function (AF), Location Management Function (LMF), Gateway Mobile Location Centre (GMLC), and Network Data Analytics Function (NWDAF). It should be noted that this application embodiment only uses core network equipment in the NR system as an example and does not limit the specific type of core network equipment. If the name of the core network equipment mentioned in this application embodiment changes in subsequent protocol versions (e.g., 6G), it will still be within the scope of protection of this application.

[0031] Optionally, the core network equipment can be implemented by one or more functional modules in a single device, or by multiple devices working together; this application does not specifically limit this. It is understood that the aforementioned functional modules can be network elements in hardware devices, software functional modules running on dedicated hardware, or virtualized functional modules instantiated on a platform (e.g., a cloud platform).

[0032] For ease of understanding, the following describes some aspects of the embodiments of this application:

[0033] I. NR Control Resource Set (CORESET) Configuration.

[0034] In NR version 15 (Rel15), CORESET is defined similarly to the LTE PDCCH control domain. It can be all or part of a Physical Resource Block (PRB) configured in the Bandwidth Part (BWP) frequency domain. The duration of a CORESET (in symbols) can be configured as 1, 2, or 3. The resources associated with CORESET are defined as follows:

[0035] Resource Element Group (REG): A resource element group that occupies 1 symbol in the time domain and 1 PRB in the frequency domain;

[0036] REG bundle: A combination of L REGs, where L is configured by the Radio Resource Control (RRC) parameter reg-bundle-size;

[0037] CCE: Contains 6 REGs and is mapped according to the CCE-to-REG mapping rule.

[0038] Optionally, the REG bundle includes interleaved or interleaved CCE-to-REG mapping. For non-interleaved CCE-to-REG mapping, L is fixed at 6; for interleaved CCE-to-REG mapping, when the number of symbols in the CORESET is configured to 1, L can be configured to 2 or 6; when the number of symbols in the CORESET is configured to 2 or 3, L can be configured to the number of symbols in the CORESET or 6.

[0039] Optionally, for CCE-to-REG mapping rules, CCE-to-REG mapping can be configured to be interleaved or non-interleaved, and is performed at the granularity of REG bundles according to the following rules:

[0040] First, REGs are numbered according to the principle of first the time domain (from front to back) and then the frequency domain (from low to high);

[0041] The i-th REG bundle contains REGs i*L, i*L+1,…,i*L+L-1, where i = 0, 1,…,N CORESET , where N CORESET The number of REGs configured for CORESET;

[0042] For CCE j It contains a REG bundle including {f(6j / L), f(6j / L+1), ..., f(6j / L+6 / L-1)}; optionally, for non-interleaved CCE-to-REG mapping, L = 6 and f(x) = x; for interleaved CCE-to-REG mapping, when the number of symbols in CORESET is configured to be 1, L is 2 or 6; when the number of symbols in CORESET is configured to be 2 or 3, L is the number of symbols in CORESET or 6, and the interleaving function is:

[0043] Where x = cR + r, r = 0, 1, ..., R-1, c = 0, 1, ..., C-1, R is the interleaver size, which can be configured to 2, 3, or 6. n is an integer; shift ∈{0,1,…,274} can be configured through the higher-level parameter shiftIndex; otherwise... Indicates the physical layer cell ID.

[0044] When the high-level parameter `precoderGranularity` is configured as `sameAsREG-bundle`, the terminal assumes that the precoding within a REG bundle is the same.

[0045] When the higher-layer parameter precoderGranularity is configured as allContiguousRBs, the terminal assumes that the precoding on consecutive REGs within the CORESET is the same, and that the consecutive REGs do not overlap with any resource elements (REs) of LTE Communication Resource Sharing (CRS) configured under any Synchronization Signal and PBCH block (SSB) or Dynamic Spectrum Sharing (DSS).

[0046] For CORESET 0, the terminal is assumed to be interleaved, with L=6 and R=2.

[0047] II. The search space for NR is determined by the CCE index within CORESET.

[0048] The CCE index of each candidate PDCCH within the CORESET is determined according to a given search space function. Specifically, for the search space set s of the associated control resource set p, in the time slot... Aggregate candidate control channels of level L The CCE index is given by the following formula:

[0049] Among them, for public search space, For terminal-specific search space Y p,-1 =n RNTI ≠0, D=65537, A p =39827.

[0050] For the search space and control resource set, each candidate PDCCH spans a maximum of three symbols in the time domain, and both the different CCEs and candidate PDCCHs are FDM, resulting in insufficient flexibility in time domain configuration. This design, especially at low bandwidths, cannot support candidate PDCCHs with high aggregation levels due to the limited number of configurable FDM CCEs per search space, impacting the reliability of PDCCH transmission. Furthermore, in the frequency domain, candidate PDCCHs are scattered across the entire CORESET frequency domain, lacking sufficient flexibility in frequency domain configuration for coexistence scenarios with unlicensed spectrum or discrete spectrum scenarios. Therefore, this application proposes a resource determination method for the search space.

[0051] The resource determination method for the search space provided in this application will be described in detail below with reference to the accompanying drawings and through some embodiments and application scenarios.

[0052] Referring to Figure 2, an embodiment of this application provides a method for determining resources in a search space. As shown in Figure 2, the method for determining resources in a search space includes:

[0053] Step 201: The target device determines the candidate physical downlink control channel (PDCCH) resources of the target search space based on the configuration information of the target control resource set and the configuration information of the target search space. The target control resource set includes at least two sub-control resource sets, and the target search space is associated with the target control resource set.

[0054] In this embodiment of the application, the association between the target search space and the target control resource set can be understood or replaced as follows: the target control resource set is a control resource set configured for the target search space. Since at least two sub-control resource sets are configured for a target search space, the number of CCEs that can be configured in a search space is increased, improving the flexibility of search space configuration and thus enhancing the reliability of PDCCH transmission.

[0055] Optionally, the aforementioned target control resource set may include at least one of the following:

[0056] At least two first sub-control resource sets, wherein the at least two first sub-control resource sets are time-division sub-control resource sets in the target control resource set;

[0057] At least two second sub-control resource sets, wherein the at least two second sub-control resource sets are frequency-divided sub-control resource sets within the target control resource set.

[0058] In other words, the above-mentioned at least two sub-control resource sets are multiple sub-control resource sets of time-division and / or frequency-division, which can increase the number of CCEs that can be configured in a search space.

[0059] Optionally, each sub-control resource set in the aforementioned target control resource set can be understood or replaced as an independent control resource set, and the target control resource set can be understood or replaced as a control resource set group that includes at least two control resource sets.

[0060] Optionally, the configuration information of the target control resource set is configuration information used to configure relevant parameters of the target resource set, and the configuration information of the target search space is configuration information used to configure relevant parameters of the target search space. Optionally, the frequency domain information of the candidate PDCCH resources can be determined based on the configuration information of the target control resource set, and the time domain information of the candidate PDCCH resources can be determined based on the configuration information of the target search space.

[0061] This application embodiment determines candidate Physical Downlink Control Channel (PDCCH) resources for a target search space based on the configuration information of a target control resource set and the configuration information of a target search space. The target control resource set includes at least two sub-control resource sets, and the target search space is associated with these target control resource sets. By configuring at least two sub-control resource sets for a target search space, the number of CCEs that can be configured for a search space is increased, improving the reliability of PDCCH resource transmission. Furthermore, this application embodiment also improves the flexibility of search space configuration.

[0062] Optionally, in some embodiments, the configuration information of the target control resource set or the configuration information of the target search space includes at least one of the following:

[0063] The number of sub-control resource sets included in the target control resource set;

[0064] The temporal configuration information of the target control resource set;

[0065] The frequency domain configuration information of the target control resource set.

[0066] In this embodiment of the application, the number of sub-control resource sets included in the target control resource set may include the number of sub-control resource sets and the number of sub-control resource sets.

[0067] Optionally, in some embodiments, the time-domain configuration information of the target control resource set includes at least one of the following:

[0068] The number of symbols in the target control resource set;

[0069] The symbol mapping bitmap of the target control resource set;

[0070] The symbol count or list of symbol counts for the at least two sub-control resource sets;

[0071] At least two sub-control resource sets; a symbol number interval or a list of symbol number intervals.

[0072] A list of symbol maintenance data intervals or symbol number intervals between the start symbols of at least two sub-control resource sets;

[0073] A bitmap of symbol mappings for at least two sub-control resource sets;

[0074] A bitmap of start symbol mappings for at least two sub-control resource sets;

[0075] A list of time-domain offsets of the start symbols of at least two sub-control resource sets relative to the start symbol of the monitoring timing;

[0076] A list of time-domain offsets of the start symbols of at least two sub-control resource sets relative to the start symbol of the first sub-control resource set.

[0077] In this embodiment, the symbol number of the target control resource set can be understood as the sum of the symbol numbers of all sub-control resource sets within the target control resource set.

[0078] Optionally, in the bitmap of the symbol mapping of the target control resource set, one bit is a symbol of the monitoring opportunity (MO). For example, if the first symbol of the MO is the symbol #0 of the slot and the configured bitmap is 110110110000, then the time domain position of the MO is the symbol #0, #1, #3, #4, #6 and #7.

[0079] Optionally, if the number of symbols in each sub-control resource set is the same, a symbol count indication can be configured to indicate the number of symbols in the at least two sub-control resource sets. If the number of symbols in each sub-control resource set is different, a symbol count list can be configured to indicate the number of symbols in the at least two sub-control resource sets.

[0080] Optionally, for the symbol number interval or symbol number interval list between at least two sub-control resource sets, the time domains of multiple sub-control resource sets may be discontinuous. If the intervals are the same, a symbol number interval can be configured; if the intervals are different, a symbol number interval list can be configured, each corresponding to a symbol number interval between multiple sub-control resource sets.

[0081] Optionally, for the symbol number interval or symbol number interval list between the start symbols of at least two sub-control resource sets, the time domain of the start symbols of multiple sub-control resource sets may be discontinuous. If the intervals are the same, a symbol number interval between start symbols can be configured; if the intervals are different, a symbol number interval list between start symbols can be configured, each corresponding to the symbol number interval between the start symbols of multiple sub-control resource sets.

[0082] It should be understood that the symbol number interval between sub-control resource sets can be interpreted as the interval between the end symbol of the preceding sub-control resource set and the start symbol of the following sub-control resource set in two adjacent sub-control resource sets. The symbol number interval between the start symbols of sub-control resource sets can be interpreted as the interval between the start symbol of the preceding sub-control resource set and the start symbol of the following sub-control resource set in two adjacent sub-control resource sets.

[0083] Optionally, in some embodiments, the frequency domain configuration information of the target control resource set includes at least one of the following:

[0084] List of starting physical resource block (PRB) locations for at least two sub-control resource sets;

[0085] The PRB location list of the at least two sub-control resource sets;

[0086] The at least two sub-control resource sets are relative to the PRB position or PRB position list of the starting PRB.

[0087] Optionally, the aforementioned starting PRB position list can be used to indicate the starting PRB position of each sub-control resource set. The PRB position list may include multiple bitmaps based on PRB or PRB group mapping, each bitmap indicating the position of all PRBs within a sub-control resource set. If at least two sub-control resource sets have the same PRB position relative to the starting PRB, the frequency domain configuration information of the target control resource set may include the PRB positions of the at least two sub-control resource sets relative to the starting PRB. These PRB positions may be indicated based on bitmaps of PRB or PRB group mapping. If at least two sub-control resource sets do not have completely identical PRB positions relative to the starting PRB, the frequency domain configuration information of the target control resource set may include the PRB position list of the at least two sub-control resource sets relative to the starting PRB. This list may include multiple bitmaps based on PRB or PRB group mapping, each bitmap indicating the PRB position of a sub-control resource set relative to the starting PRB.

[0088] Optionally, in some embodiments, the method further includes:

[0089] The target device determines the time-domain information of the monitoring timing of the search space corresponding to at least two sub-control resource sets in the target control resource set according to the first rule;

[0090] The first rule includes at least one of the following:

[0091] The temporal position of the i-th sub-control resource set is determined based on the start symbol of the monitoring timing and the number of temporal symbols of the sub-control resource set;

[0092] The temporal position of the i-th sub-control resource set is determined based on the start symbol of the monitoring timing, the temporal symbol number of the sub-control resource set, and the symbol number interval between two adjacent sub-control resource sets;

[0093] The temporal position of the i-th sub-control resource set is determined based on the start symbol of the i-th sub-control resource set and the number of symbols contained in the i-th sub-control resource set;

[0094] The temporal position of the i-th sub-control resource set is determined based on the start symbol of the monitoring timing and the number of temporal symbols of the sub-control resource set, wherein the sub-control resource set starts from the start symbol of the latter of the two time slots;

[0095] The temporal position of the i-th sub-control resource set is determined based on the start symbol of the monitoring timing, the number of time-domain symbols of the sub-control resource set, and the symbol interval between two adjacent sub-control resource sets. The sub-control resource set starts from the start symbol of the second time slot of the two time slots.

[0096] The at least two sub-control resource sets correspond one-to-one with at least two first time units, and the at least two first time units are consecutive time slot groups, time slots or sub-time slots, and the time domain position of the i-th sub-control resource set is located on the corresponding second time unit;

[0097] The time-domain position of the i-th sub-control resource set is determined based on the start symbol of the i-th sub-control resource set and the number of symbols contained in the i-th sub-control resource set. The start symbol of the i-th sub-control resource set is determined based on the bit map of the start symbol of the monitoring timing and the start symbol of the sub-control resource set.

[0098] The temporal position of the i-th sub-control resource set is determined based on the start symbol of the i-th sub-control resource set and the number of symbols contained in the i-th sub-control resource set. The start symbol of the i-th sub-control resource set is determined based on the start symbol of the monitoring timing and the temporal offset of the sub-control resource set.

[0099] The temporal position of the i-th sub-control resource set is determined based on the start symbol of the i-th sub-control resource set and the number of symbols contained in the i-th sub-control resource set. The start symbol of the i-th sub-control resource set is determined based on the start symbol of the first sub-control resource set and the temporal offset of the sub-control resource set relative to the start symbol. The start symbol of the first sub-control resource set is determined based on the start symbol of the monitoring timing.

[0100] The at least two sub-control resource sets are located in the same second time unit, which is a time slot group, time slot, or sub-time slot.

[0101] Optionally, the two time slots mentioned above can be understood as the two time slots associated with the i-th sub-control resource set when the i-th sub-control resource set spans multiple time slots.

[0102] In this embodiment of the application, assuming that the start symbol of the monitoring timing M is the Sth symbol of the slot group, slot, or sub-slot K, and the number of the first control resource set is N, then the following situation exists:

[0103] Case 1: If the N sub-control resource sets are contiguous in the time domain, then the time domain position of the i-th sub-control resource set is determined based on the start symbol of the monitoring timing and the number of time domain symbols of the sub-control resource set. This configuration is simple and has low signaling overhead. For example, the time domain position of the i-th sub-control resource set is... Among them, L i This represents the number of symbols in the i-th sub-control resource set. When the number of time-domain symbols in each sub-control resource set is the same, for example, all are L, the time-domain position of the i-th sub-control resource set is S+i*L, S+i*L+1, ..., S+i*L+L-1.

[0104] Scenario 2: If the N sub-control resource sets are not contiguous in the time domain, the time domain position of the i-th sub-control resource set is determined based on the start symbol of the monitoring timing, the number of time domain symbols in the sub-control resource set, and the symbol interval between two adjacent sub-control resource sets. This effectively avoids uplink symbols and is beneficial for Time Division Duplex (TDD) system deployment. For example, if the number of symbols in the i-th sub-control resource set is L... i The symbol number interval between the i-th sub-control resource set and the (i-1)-th sub-control resource set is G. i Then the temporal location of the i-th sub-control resource set is

[0105] Case 3: N sub-control resource sets are located across N consecutive time units, meaning each of the N sub-control resource sets corresponds one-to-one with one of the N time units. The temporal position of the i-th sub-control resource set is determined based on its start symbol and the number of symbols it contains. This approach is simple and avoids sub-control resource sets spanning time units (e.g., time slots). Here, the time unit can be understood as a slot group, a slot, or a sub-slot. For example, the temporal position of the i-th sub-control resource set is the symbol of the target index K+i-1 (slot group / slot / sub-slot K+i-1), where the target index is S, S+1, ..., S+L. i -1.

[0106] Case 4, based on Cases 1 and 2, when the sub-control resource set spans slots, the sub-control resource set starts from the start symbol of the second slot of the two slots, thus avoiding the sub-control resource set spanning slots.

[0107] Case 5: When the network-side device configures a bitmap mapping for the start symbol of a sub-control resource set, the time-domain position of the i-th sub-control resource set is determined based on the start symbol of the i-th sub-control resource set and the number of symbols contained in the i-th sub-control resource set. The start symbol of the i-th sub-control resource set is determined based on the start symbol of the monitoring timing and the bitmap mapping for the start symbol of the sub-control resource set. For example, the start symbol of the i-th sub-control resource set is S. i = S + Q, where Q represents the index of the starting symbol of the i-th sub-control resource set, for example, the index of the i-th bitmap element set to 1. The number of symbols (or length) of the sub-control resource set is L. i The temporal position of the i-th sub-control resource set is indexed as S, S+1, ..., S+L. i The symbol for -1.

[0108] Case 6: Multiple sub-control resource sets have the same time-domain location, and the indices of the sub-control resource sets in slot group / slot / sub-slot K are S, S+1, ..., S+L. i The symbol for -1.

[0109] Case 7: When the network-side device configures a time-domain offset for the sub-control resource set, the time-domain position of the i-th sub-control resource set is determined based on the start symbol of the i-th sub-control resource set and the number of symbols contained in the i-th sub-control resource set. The start symbol of the i-th sub-control resource set is determined based on the start symbol of the monitoring timing and the time-domain offset of the sub-control resource set. For example, the start symbol of the i-th sub-control resource set is S. i =S+W, where W represents the time-domain offset of the i-th sub-control resource set.

[0110] Case 8: When the network-side device configures the start symbol of the first sub-control resource set and the time offset of other sub-control resource sets relative to the start symbol of the first sub-control resource set, the time-domain position of the i-th sub-control resource set is determined based on the start symbol of the i-th sub-control resource set and the number of symbols contained in the i-th sub-control resource set. The start symbol of the i-th sub-control resource set is determined based on the start symbol of the first sub-control resource set and the time-domain offset of the sub-control resource set relative to the start symbol. The start symbol of the first sub-control resource set is determined based on the start symbol of the monitoring timing.

[0111] Optionally, in some embodiments, the method further includes:

[0112] The target device determines the frequency domain information of the monitoring timing of the search space corresponding to the at least two sub-control resource sets according to the second rule;

[0113] The second rule includes one of the following:

[0114] The PRB corresponding to the i-th sub-control resource set is determined based on the starting PRB corresponding to the i-th sub-control resource set and the number of PRBs corresponding to the i-th sub-control resource set.

[0115] The PRB corresponding to the i-th sub-control resource set is determined based on the starting PRB corresponding to the i-th sub-control resource set and the first bit map, where each bit value in the first bit map is associated with a PRB group.

[0116] The PRB corresponding to the i-th sub-control resource set is determined based on the resource indicator value (RIV).

[0117] In this embodiment of the application, the PRB corresponding to the i-th sub-control resource set is determined based on the start PRB corresponding to the i-th sub-control resource set and the number of PRBs corresponding to the i-th sub-control resource set: assuming the number of sub-control resource sets is P, and P sub-control resource sets can have multiple start PRB positions and PRB count indicators, where the start PRB corresponding to the i-th sub-control resource set is R. i The number of PRBs is Q i The index of the PRB corresponding to the i-th sub-control resource set is R. i ,R i +1,...,R i +Q i -1. The number of PRBs in the P sub-control resource sets can be the same, Q, and the index of the PRB corresponding to the i-th sub-control resource set is R. i ,R i +1,...,R i +Q-1.

[0118] For the case where the PRB corresponding to the i-th sub-control resource set is determined based on the starting PRB and the first bitmap of the i-th sub-control resource set: There are multiple starting PRB positions for the P sub-control resource sets, and the starting PRB corresponding to the i-th sub-control resource set is R. i Grouping PRBs with the start PRB as a reference and indicating the PRB group position using the first bitmap, the PRB corresponding to the i-th sub-control resource set is the PRB group whose PRB indication is '1' or '0' with the start PRB as the reference. Optionally, the bitmap indications of the PRB positions of the P sub-control resource sets can be the same.

[0119] For the case where the PRB corresponding to the i-th sub-control resource set is determined based on the Resource Indication Value (RIV): if there are multiple RIV indications for the P sub-control resource sets, the PRB corresponding to the i-th sub-control resource set is either the PRB or a group of PRBs indicated by the RIV.

[0120] Optionally, in some embodiments, the starting PRB corresponding to the i-th sub-control resource set is determined based on any of the following:

[0121] Explicitly configured PRB;

[0122] The starting PRB for the target object configured for the i-th sub-control resource set;

[0123] The i-th indicator in the second bitmap is the start PRB of the target object with a preset value. The second bitmap is a bitmap that configures Q target objects, where Q is the number of PRBs corresponding to the i-th sub-control resource set.

[0124] The target object includes any one of the following: a resource block set (RB set), a frequency part (Frequency Part), a bandwidth part (BWP), and a carrier.

[0125] In this embodiment, the network-side device can explicitly configure the PRBs of sub-control resource sets, and the starting PRB of each sub-control resource set can be directly determined based on the explicitly configured PRBs. For example, the PRBs of sub-control resource sets can be indicated by a bit map based on PRBs or PRB group mappings, and the PRB with the smallest frequency domain or the PRB with the smallest index can be determined as the starting PRB corresponding to the i-th sub-control resource set.

[0126] Optionally, in some embodiments, the starting PRB corresponding to the i-th sub-control resource set can be the starting PRB of the target object configured for the i-th sub-control resource set plus the configured offset.

[0127] Optionally, in some embodiments, the starting PRB corresponding to the i-th sub-control resource set can be the starting PRB of the i-th target object indicated as "1" in the second bit map, or the starting PRB of the i-th target object indicated as "1" in the second bit map plus the configured offset. Optionally, the offsets configured for multiple sub-control resource sets can be shared or allocated, without further limitation.

[0128] Optionally, in some embodiments, the method further includes:

[0129] The target device assigns one-dimensional or two-dimensional numbers to the REG of each sub-control resource set in the target resource set according to the first order of the resource element group REG of the sub-control resource set and the numbering order of the sub-control resource set.

[0130] The first order is either a numbering order of time domain first and then frequency domain, or a numbering order of frequency domain first and then time domain.

[0131] In this embodiment of the application, the above-mentioned numbering order of time domain first and then frequency domain can be understood as first sorting according to the time domain order of REG, and then sorting according to the frequency domain order. For example, the REG included in the sub-control resource set includes REG 0, REG 1, REG 2 and REG 3, and their time-frequency distribution is shown in Table 1 below.

[0132] Table 1:

[0133] In this configuration, REG 0 and REG 1 use the same frequency domain resources, while REG 0's time domain precedes REG 1's. REG 0 and REG 2 use the same time domain resources, while REG 0's frequency domain is lower than REG 2's. If the time domain is considered before the frequency domain, the four REGs are numbered REG 0, REG 1, REG 2, and REG 3. If the frequency domain is considered before the time domain, the four REGs are numbered REG 0, REG 2, REG 1, and REG 3.

[0134] Optionally, for two-dimensional numbering, REG numbering can be performed in each sub-control resource set. For example, if the REG number of the i-th sub-control resource set is obtained by first the time domain and then the frequency domain, then the two-dimensional number of this REG in the target control resource set is (i, j).

[0135] Optionally, for one-dimensional numbering, REG numbering can be performed in each sub-control resource set. For example, if the REG number of the i-th sub-control resource set is obtained by first using the time domain and then the frequency domain, and the one-dimensional number of this REG in the target control resource set is j, then the one-dimensional numbering of this REG in the target control resource set is j. Among them, E i Let be the number of REGs in the i-th sub-control resource set.

[0136] Optionally, in some embodiments, the method further includes:

[0137] The target device maps REG groups according to the numbering or size order of REGs in the sub-control resource set to obtain REG groups;

[0138] The target device assigns one-dimensional or two-dimensional numbers to the REG groups of each sub-control resource set in the target resource set according to the second order of the REG groups of the sub-control resource sets and the numbering order of the sub-control resource sets.

[0139] The second order includes any one of the following: the numbering order of REGs, the numbering order of the first REG, the numbering order of time domain first and then frequency domain, and the numbering order of frequency domain first and then time domain.

[0140] In this embodiment of the application, the one-dimensional number and the two-dimensional number can be understood as the REG bundle number in the target control resource set.

[0141] Optionally, each sub-control resource set can map REG bundles according to their respective REG bundle size, starting from the smallest REG or REG#0, following the REG numbering order. Then, the mapped REG bundles are arranged in a second order to obtain the REG bundle number k for the i-th sub-control resource set. The two-dimensional number of this REG bundle in the target control resource set is (i, k), and the one-dimensional number (or unified number) of this REG bundle in the target control resource set is... Among them, F i Let be the number of REG bundles in the i-th sub-control resource set.

[0142] Optionally, the REG bundle size of multiple sub-control resource sets may be the same or different, and may be predefined or configured by the base station. Optionally, the REG bundle size is related to at least one of the following:

[0143] Interleaving mode of REG bundle to CCE mapping;

[0144] The number of symbols in the sub-control resource set.

[0145] Optionally, in some embodiments, the method further includes:

[0146] The target device performs control channel element (CCE) mapping to obtain the CCE of the target control resource set;

[0147] Wherein, the CCE mapping satisfies at least one of the following:

[0148] CCE mapping is performed according to the numbering or size order of the REG groups in the sub-control resource set;

[0149] The mapping from REG groups to CCE within the i-th sub-control resource set is performed according to the first interleaving function;

[0150] The order of CCE mapping is determined based on the sub-control resource set number and first information, the first information including one of the following: REG time domain, REG frequency domain, REG time domain and REG frequency domain, REG group number;

[0151] The mapping from the sub-control resource set number to the interleaving number of the sub-control resource set is completed according to the second interleaving function, which is an interleaving function across sub-control resource sets;

[0152] The mapping from REG group numbers within the sub-control resource set to REG group interleaving numbers within the sub-control resource set is completed according to the third interleaving function, wherein the third interleaving function is the interleaving function within the sub-control resource set;

[0153] The mapping from REG groups across sub-control resource sets to CCEs is performed based on the fourth interleaving function.

[0154] In this embodiment of the application, optionally, for the mapping of non-interleaved REG bundles to CCEs, CCE mapping can be performed according to the numbering order or size order of the REG groups in the sub-control resource set.

[0155] Optionally, for the mapping from REG bundles interleaved within a sub-control resource set to CCEs, the mapping from REG bundles interleaved within the i-th sub-control resource set to CCEs can be performed according to the first interleaving function. Wherein, for the i-th sub-control resource set, the REG bundles contained in the q-th CCE are numbered as {f(q*H), f(q*H+1), ..., f(q*H+H-1)}, where f(.) is the first interleaving function, and H represents the number of REG bundles contained in a CCE.

[0156] Optionally, the mapping from REG bundles to CCEs across sub-control resource sets can be performed based on the sub-control resource set number and first information. For example, the mapping can include at least the following mapping methods:

[0157] Method 1: First, map according to the numbering order of the sub-control resource sets, then according to the time domain order, and finally according to the frequency domain order;

[0158] Method 2: First, map according to the numbering order of the sub-control resource sets, then according to the frequency domain order, and finally according to the time domain order;

[0159] Method 3: First, map according to the time domain order, then according to the numbering order of the sub-control resource sets, and finally according to the frequency domain order;

[0160] Method 4: First, map according to the frequency domain order, then according to the numbering order of the sub-control resource sets, and finally according to the time domain order;

[0161] Method 5: First, follow the numbering order of the sub-control resource sets, then follow the temporal order;

[0162] Method 6: First, follow the numbering order of the sub-control resource sets, then follow the frequency domain order;

[0163] Method 7: First, follow the numbering order of the sub-control resource sets, then follow the numbering order of the REG groups.

[0164] The REG group is used as an example for illustration. The distribution of the REG group in the time-frequency domain is shown in Table 2.

[0165] Table 2:

[0166] Among them, the four REG groups in the same column have the same time domain, and the frequency domain increases from bottom to top; the four REG groups in the same row have the same frequency domain, and the time domain increases from left to right.

[0167] Suppose a CCE has 8 REG bundles.

[0168] For method 1, the mapped CCEs include:

[0169] CCE#1:(0,0),(1,0),(0,1),(1,1),(0,2),(1,2),(0,3),(1,3);

[0170] CCE#2:(0,4),(1,4),(0,5),(1,5),(0,6),(1,6),(0,7),(1,7).

[0171] When there is no FDM REG bundle in the sub-control resource set, mapping is performed in a similar manner as in method 5.

[0172] For method 2, the mapped CCEs include:

[0173] CCE#1:(0,0),(1,0),(0,2),(1,2),(0,4),(1,4),(0,6),(1,6);

[0174] CCE#2:(0,1),(1,1),(0,3),(1,3),(0,5),(1,5),(0,7),(1,7).

[0175] When there is no Time Division Multiplexing (TDM) REG bundle in the sub-control resource set, mapping is performed in a similar manner as in method 6.

[0176] For method 3, the mapped CCEs include:

[0177] CCE#1:(0,0),(0,1),(1,0),(1,1),(0,2),(0,3),(1,2),(1,3);

[0178] CCE#2:(0,4),(0,5),(1,4),(1,5),(0,6),(0,7),(1,6),(1,7).

[0179] For method 4, the mapped CCEs include:

[0180] CCE#1:(0,0),(0,2),(0,4),(0,6),(1,0),(1,2),(1,4),(1,6);

[0181] CCE#2:(0,1),(0,3),(0,5),(0,7),(1,1),(1,3),(1,5),(1,7).

[0182] For method 7, the mapped CCEs include:

[0183] CCE#1:(0,0),(1,0),(0,1),(1,1),(0,2),(1,2),(0,3),(1,3);

[0184] CCE#2:(0,4),(1,4),(0,5),(1,5),(0,6),(1,6),(0,7),(1,7).

[0185] Optionally, for the mapping of REG bundles across sub-control resource sets to CCEs, CCE mapping can be performed based on a second interleaving function and / or a third interleaving function.

[0186] Optionally, for the mapping of REG bundles to CCEs across sub-control resource sets, the mapping can be performed according to the fourth interleaving function. Specifically, for the i-th sub-control resource set, the REG bundles contained in the q-th CCE are numbered {f(q*H), f(q*H+1), ..., f(q*H+H-1)}, where f(.) is the second interleaving function.

[0187] Optionally, in some embodiments, the method further includes:

[0188] The target device assigns one-dimensional or two-dimensional numbers to the CCEs of each sub-control resource set in the target resource set according to the third order of the CCEs of the sub-control resource sets and the numbering order of the sub-control resource sets. The third order includes one of the following: the numbering order of REG groups, the numbering order of the first REG group, the numbering order of time domain first and then frequency domain, and the numbering order of frequency domain first and then time domain.

[0189] In this embodiment, the mapped CCEs are arranged in a third order to obtain the CCE number w for the i-th sub-control resource set. Then, the two-dimensional number of this CCE in the target control resource set is (i, w), and the one-dimensional number of this CCE in the target control resource set is... Among them, J i Let be the number of CCEs in the i-th sub-control resource set.

[0190] Optionally, in some embodiments, the first interleaving function is associated with at least one of the following:

[0191] The interleaving size of the i-th sub-control resource set;

[0192] The number of REGs in the i-th sub-control resource set;

[0193] The number of REG groups in the i-th sub-control resource set;

[0194] The number of REGs contained in the REG of the i-th sub-control resource set;

[0195] The number of REGs contained in the CCE of the i-th sub-control resource set;

[0196] The number of REG groups contained in the CCE of the i-th sub-control resource set;

[0197] The interleaving offset parameter of the i-th sub-control resource set.

[0198] Optionally, in some embodiments, the second interleaving function is associated with at least one of the following:

[0199] Interleaving size of the cross-sub control resource set;

[0200] The number of sub-control resource sets included in the target control resource set.

[0201] Optionally, in some embodiments, the third interleaving function is associated with at least one of the following:

[0202] The size of the interleaving of the i-th sub-control resource set;

[0203] The number of REGs in the i-th sub-control resource set;

[0204] The number of REG groups in the i-th sub-control resource set;

[0205] The number of REGs contained in the REG of the i-th sub-control resource set;

[0206] The number of REGs contained in the CCE of the i-th sub-control resource set;

[0207] The number of REG groups contained in the CCE of the i-th sub-control resource set;

[0208] The interleaving offset parameter of the i-th sub-control resource set.

[0209] Optionally, in some embodiments, the fourth interleaving function is associated with at least one of the following:

[0210] The target control resource set has a uniform interleaving size;

[0211] The number of REGs in the target control resource set;

[0212] The number of REG groups in the target control resource set;

[0213] The number of REGs contained in the REG of the target control resource set;

[0214] The number of REGs contained in the CCE of the target control resource set;

[0215] The number of REG groups contained in the CCE of the target control resource set;

[0216] The interleaving offset parameters of the target control resource set;

[0217] The number of REGs in the i-th sub-control resource set;

[0218] The number of REG groups in the i-th sub-control resource set;

[0219] The number of REGs contained in the REG of the i-th sub-control resource set;

[0220] The number of REGs contained in the CCE of the i-th sub-control resource set;

[0221] The number of REG groups contained in the CCE of the i-th sub-control resource set;

[0222] The interleaving offset parameter of the i-th sub-control resource set.

[0223] Optionally, the interleaving size can be agreed upon by the protocol or configured by the network-side equipment. The interleaving offset parameter can be associated with at least one of the cell identifier and the identifier of the sub-control resource set.

[0224] Optionally, the parameters associated with the interleaving functions corresponding to the different sub-control resource sets mentioned above can be the same or different.

[0225] Optionally, in some embodiments, the number of REG groups included in the CCE of the target control resource set is determined by the protocol or configured by the network-side device;

[0226] Alternatively, the number of REGs contained in the CCE of the target control resource set may be determined by protocol agreement or network-side device configuration, and the number of REG groups contained in the CCE may be determined based on the size of the CCE and the size of the REG groups.

[0227] Optionally, in some embodiments, the candidate PDCCH resource satisfies one of the following:

[0228] The candidate PDCCH resources include candidate PDCCHs within each sub-control resource set, and the number of candidate PDCCHs within each sub-control resource set is: P represents the number of candidate PDCCHs configured by the network-side device, and N represents the number of sub-control resource sets.

[0229] The candidate PDCCH resources include those within each sub-control resource set. There are 1 candidate PDCCH, where P is the number of candidate PDCCH groups configured by the network-side device, and M is the number of packets included in the target control resource set. Candidate PDCCHs of sub-control resource sets within the same packet are associated to form the candidate PDCCH group.

[0230] The candidate PDCCH resources include P candidate PDCCHs configured by the network-side devices, and the CCE of each sub-control resource set in the target control resource set is a one-dimensional code.

[0231] Optionally, candidate PDCCHs can be restricted to sub-control resource sets. For example, CCE-to-candidate PDCCH mapping can be performed within each sub-control resource set. For a candidate PDCCH with aggregation level L and configured number of candidate PDCCHs P, then the number of candidate PDCCHs in each sub-control set is P. The CCE index contained in the candidate PDCCH is determined by the objective function.

[0232] Optionally, candidate PDCCHs can be restricted to sub-control resource sets. For example, N sub-control resource sets are divided into M (M=1 or M>1) groups. Candidate PDCCHs from the same sub-control resource set are associated to form a candidate PDCCH group. Within each sub-control resource set, a mapping from CCE to candidate PDCCH is performed. For a candidate PDCCH group with Aggregation Level=L, if the number of configured candidate PDCCH groups is P, then the number of candidate PDCCHs within each sub-control set is...

[0233] Optionally, candidate PDCCHs span multiple sub-control resource sets. For example, in the target control resource set, CCEs are uniformly numbered (i.e., one-dimensional numbered) and uniform candidate PDCCHs are mapped. For candidate PDCCHs with Aggregation Level = L, the number of candidate PDCCHs configured is P.

[0234] Optionally, candidate PDCCHs with the same sub-control resource set number in the same group are associated together to form a candidate PDCCH group or associated through an association function, wherein the association function is related to at least one of the following:

[0235] The number of CCEs in the sub-control resource set;

[0236] The maximum or minimum number of sub-control resource sets (CCEs);

[0237] The number of the sub-control resource set;

[0238] The number of sub-control resource sets.

[0239] Optionally, in some embodiments, the CCE number included in the candidate PDCCH is determined by an objective function;

[0240] The objective function is associated with at least one of the following:

[0241] The number of CCEs in the sub-control resource set;

[0242] The maximum or minimum number of CCEs in the sub-control resource set;

[0243] The number of the sub-control resource set;

[0244] The number of sub-control resource sets;

[0245] The number of candidate PDCCHs in the sub-control resource set;

[0246] The aggregation level of candidate PDCCH.

[0247] Optionally, in some embodiments, the number of sub-control resource sets is determined based on at least one of the following:

[0248] The agreement stipulates;

[0249] Displays configuration or indicated parameters;

[0250] Configured PDCCH repetition count;

[0251] Whether it is used for secondary downlink control information (DCI);

[0252] Configured Transmit / Receive Point (TRP);

[0253] The size of the list of symbols for the configured sub-control resource set;

[0254] The size of the starting PRB list of the configured sub-control resource set;

[0255] The size of the time-domain offset list of the start symbols of at least two sub-control resource sets relative to the start symbol of the monitoring timing;

[0256] The size of the time-domain offset list of the start symbols of at least two sub-control resource sets relative to the start symbol of the first sub-control resource set.

[0257] Optionally, in some embodiments, the number of the sub-control resource set is determined by at least one of the following: the time domain of the sub-control resource set; the frequency domain of the sub-control resource set.

[0258] In this embodiment of the application, the numbering of the sub-control resource set can be determined by any of the following orders:

[0259] The temporal order of the sub-control resource set;

[0260] The frequency domain order of the sub-control resource set from high to low or from low to high;

[0261] The order is time domain first, then frequency domain (i.e., the sub-control resource sets are numbered sequentially according to their time domain order and then according to their frequency domain order).

[0262] The order is frequency domain first, then time domain (i.e., the sub-control resource sets are numbered sequentially according to their frequency domain order and then according to their time domain order).

[0263] To better understand this application, some specific examples are provided below.

[0264] In some embodiments, multiple sub-control resource sets are introduced in the time domain, thereby solving the problem of insufficient flexibility in the time domain configuration of control resource sets, achieving gains in expanded coverage, enhanced reliability, and flexible adaptation to special scheduling scenarios. This may include the following steps:

[0265] Step 11: The terminal or base station determines the time domain information of the monitoring time M corresponding to the search space of multiple time sub-control resource sets based on the configuration information of the target control resource set and the configuration information of the target search space, including the start symbol and time domain length of each sub-control resource set.

[0266] Step 12: The terminal or base station assigns REG numbers to multiple sub-control resource sets based on the configuration information of the target control resource set, the configuration information of the target search space, and the determined time domain information.

[0267] Step 13: The terminal or base station determines the mapping of REG bundles of multiple sub-control resource sets and the number of the REG bundles based on the numbered REG.

[0268] Step 14: The terminal or base station determines the mapping of CCEs and the CCE numbers of multiple sub-control resource sets based on the numbered REG bundle.

[0269] Step 15: The terminal or base station determines the candidate PDCCH of the target search space based on the numbered CCE.

[0270] The specific implementation process of steps 11 to 15 above can be referred to the above embodiments, and will not be repeated here.

[0271] In some embodiments, multiple sub-control resource sets are introduced in the frequency domain, thereby solving the problem of insufficient flexibility in the frequency domain configuration of control resource sets, achieving gains in expanded coverage, enhanced reliability, and flexible adaptation to discrete spectrum scenarios. This may include the following steps:

[0272] Step 21: The terminal or base station determines the frequency domain information of the search space monitoring timing M corresponding to multiple sub-control resource sets based on the configuration information of the target control resource set and the configuration information of the target search space, including the start PRB and PRB position of each sub-control resource set.

[0273] Step 22: The terminal or base station assigns REG numbers to multiple second control resource sets based on the configuration information of the target control resource set, the configuration information of the target search space, and the determined time domain information.

[0274] Step 23: The terminal or base station determines the mapping of REG bundles of multiple second control resource sets and the number of the REG bundles based on the numbered REG.

[0275] Step 24: The terminal or base station determines the mapping of CCEs and the CCE numbers of multiple second control resource sets based on the numbered REG bundle.

[0276] Step 25: The terminal or base station determines the candidate PDCCH of the target search space based on the numbered CCE.

[0277] The specific implementation process of steps 11 to 15 above can be referred to the above embodiments, and will not be repeated here.

[0278] The resource determination method for the search space provided in this application can be executed by a resource determination device for the search space. This application uses the execution of the resource determination method for the search space by a resource determination device as an example to illustrate the resource determination device for the search space provided in this application.

[0279] This application provides a resource determination device for a search space. As an example, the resource determination device for a search space can be a communication device or a component within a communication device, such as a chip. The communication device can be a terminal, a network-side device, or a server, etc. Exemplarily, the terminal can be, but is not limited to, the type of terminal 11 listed above, and the network-side device can be, but is not limited to, the type of network-side device 12 listed above. This application does not impose specific limitations.

[0280] The resource determination device for the search space includes a receiving module, a transmitting module, and a processing module. These modules can be implemented in software or hardware. When implemented in hardware, the processing module can be implemented by a processor. For example, the processor can include general-purpose processors, special-purpose processors, such as a Central Processing Unit (CPU), microprocessor, Digital Signal Processor (DSP), Artificial Intelligence (AI) processor, Graphics Processing Unit (GPU), Application Specific Integrated Circuit (ASIC), Network Processor (NP), Field Programmable Gate Array (FPGA), or other programmable logic devices, gate circuits, transistors, discrete hardware components, etc. The receiving and transmitting modules can be implemented by a communication interface, which can include one or more of the following: transceiver, pins, circuits, bus, radio frequency unit, etc.

[0281] Specifically, referring to Figure 3, the resource determination device 300 for the search space includes:

[0282] The processing module 301 is used to determine the candidate physical downlink control channel (PDCCH) resources of the target search space based on the configuration information of the target control resource set and the configuration information of the target search space. The target control resource set includes at least two sub-control resource sets, and the target search space is associated with the target control resource set.

[0283] Optionally, the configuration information of the target control resource set or the configuration information of the target search space includes at least one of the following:

[0284] The number of sub-control resource sets included in the target control resource set;

[0285] The temporal configuration information of the target control resource set;

[0286] The frequency domain configuration information of the target control resource set.

[0287] Optionally, the time-domain configuration information of the target control resource set includes at least one of the following:

[0288] The number of symbols in the target control resource set;

[0289] The symbol mapping bitmap of the target control resource set;

[0290] The symbol count or list of symbol counts for the at least two sub-control resource sets;

[0291] At least two sub-control resource sets; a symbol number interval or a list of symbol number intervals.

[0292] A symbol number interval or a list of symbol number intervals between the start symbols of at least two sub-control resource sets;

[0293] A bitmap of symbol mappings for at least two sub-control resource sets;

[0294] A bitmap of start symbol mappings for at least two sub-control resource sets;

[0295] A list of time-domain offsets of the start symbols of at least two sub-control resource sets relative to the start symbol of the monitoring timing;

[0296] A list of time-domain offsets of the start symbols of at least two sub-control resource sets relative to the start symbol of the first sub-control resource set.

[0297] Optionally, the frequency domain configuration information of the target control resource set includes at least one of the following:

[0298] List of starting physical resource block (PRB) locations for at least two sub-control resource sets;

[0299] The PRB location list of the at least two sub-control resource sets;

[0300] The at least two sub-control resource sets are relative to the PRB position or PRB position list of the starting PRB.

[0301] Optionally, the processing module 301 is further configured to: determine the time-domain information of the monitoring timing of the search space corresponding to at least two sub-control resource sets in the target control resource set according to the first rule;

[0302] Wherein, the at least two sub-control resource sets are time-division sub-control resource sets within the target control resource set, and the first rule includes at least one of the following:

[0303] The temporal position of the i-th sub-control resource set is determined based on the start symbol of the monitoring timing and the number of temporal symbols of the sub-control resource set;

[0304] The temporal position of the i-th sub-control resource set is determined based on the start symbol of the monitoring timing, the temporal symbol number of the sub-control resource set, and the symbol number interval between two adjacent sub-control resource sets;

[0305] The temporal position of the i-th sub-control resource set is determined based on the start symbol of the i-th sub-control resource set and the number of symbols contained in the i-th sub-control resource set;

[0306] The temporal position of the i-th sub-control resource set is determined based on the start symbol of the monitoring timing and the number of temporal symbols of the sub-control resource set, wherein the sub-control resource set starts from the start symbol of the latter of the two time slots;

[0307] The temporal position of the i-th sub-control resource set is determined based on the start symbol of the monitoring timing, the number of time-domain symbols of the sub-control resource set, and the symbol interval between two adjacent sub-control resource sets. The sub-control resource set starts from the start symbol of the second time slot of the two time slots.

[0308] The at least two sub-control resource sets correspond one-to-one with at least two first time units, and the at least two first time units are consecutive time slot groups, time slots or sub-time slots, and the time domain position of the i-th sub-control resource set is located on the corresponding second time unit;

[0309] The time-domain position of the i-th sub-control resource set is determined based on the start symbol of the i-th sub-control resource set and the number of symbols contained in the i-th sub-control resource set. The start symbol of the i-th sub-control resource set is determined based on the bit map of the start symbol of the monitoring timing and the start symbol of the sub-control resource set.

[0310] The temporal position of the i-th sub-control resource set is determined based on the start symbol of the i-th sub-control resource set and the number of symbols contained in the i-th sub-control resource set. The start symbol of the i-th sub-control resource set is determined based on the start symbol of the monitoring timing and the temporal offset of the sub-control resource set.

[0311] The temporal position of the i-th sub-control resource set is determined based on the start symbol of the i-th sub-control resource set and the number of symbols contained in the i-th sub-control resource set. The start symbol of the i-th sub-control resource set is determined based on the start symbol of the first sub-control resource set and the temporal offset of the sub-control resource set relative to the start symbol. The start symbol of the first sub-control resource set is determined based on the start symbol of the monitoring timing.

[0312] The at least two sub-control resource sets are located in the same second time unit, which is a time slot group, time slot, or sub-time slot.

[0313] Optionally, the processing module 301 is further configured to: determine the frequency domain information of the monitoring timing of the search space corresponding to the at least two sub-control resource sets according to the second rule;

[0314] The second rule includes one of the following:

[0315] The PRB corresponding to the i-th sub-control resource set is determined based on the starting PRB corresponding to the i-th sub-control resource set and the number of PRBs corresponding to the i-th sub-control resource set.

[0316] The PRB corresponding to the i-th sub-control resource set is determined based on the starting PRB corresponding to the i-th sub-control resource set and the first bit map, where each bit value in the first bit map is associated with a PRB group.

[0317] The PRB corresponding to the i-th sub-control resource set is determined based on the resource indicator value (RIV).

[0318] Optionally, the starting PRB corresponding to the i-th sub-control resource set is determined based on any of the following:

[0319] Explicitly configured PRB;

[0320] The starting PRB for the target object configured for the i-th sub-control resource set;

[0321] The i-th indicator in the second bitmap is the start PRB of the target object with a preset value. The second bitmap is a bitmap that configures Q target objects, where Q is the number of PRBs corresponding to the i-th sub-control resource set.

[0322] The target object includes any one of the following: a resource block set, a frequency portion, a bandwidth portion, and a carrier.

[0323] Optionally, the processing module 301 is further configured to: perform one-dimensional or two-dimensional numbering on the REG of each sub-control resource set in the target resource set according to the first order of the resource element group REG of the sub-control resource set and the numbering order of the sub-control resource set;

[0324] The first order is either a numbering order of time domain first and then frequency domain, or a numbering order of frequency domain first and then time domain.

[0325] Optionally, the processing module 301 is further configured to: map REG groups according to the numbering order or size order of REGs in the sub-control resource set to obtain REG groups; and assign one-dimensional or two-dimensional numbers to the REG groups of each sub-control resource set in the target resource set according to the second order of the REG groups of the sub-control resource set and the numbering order of the sub-control resource set.

[0326] The second order includes any one of the following: the numbering order of REGs, the numbering order of the first REG, the numbering order of time domain first and then frequency domain, and the numbering order of frequency domain first and then time domain.

[0327] Optionally, the processing module 301 is further configured to: perform control channel element (CCE) mapping to obtain the CCE of the target control resource set;

[0328] Wherein, the CCE mapping satisfies at least one of the following:

[0329] CCE mapping is performed according to the numbering or size order of the REG groups in the sub-control resource set;

[0330] The mapping from REG groups to CCE within the i-th sub-control resource set is performed according to the first interleaving function;

[0331] The order of CCE mapping is determined based on the sub-control resource set number and first information, the first information including one of the following: REG time domain, REG frequency domain, REG time domain and REG frequency domain, REG group number;

[0332] The mapping from the sub-control resource set number to the interleaving number of the sub-control resource set is completed according to the second interleaving function, which is an interleaving function across sub-control resource sets;

[0333] The mapping from REG group numbers within the sub-control resource set to REG group interleaving numbers within the sub-control resource set is completed according to the third interleaving function, wherein the third interleaving function is the interleaving function within the sub-control resource set;

[0334] The mapping from REG groups across sub-control resource sets to CCEs is performed based on the fourth interleaving function.

[0335] Optionally, the processing module 301 is further configured to: number the CCEs of each sub-control resource set in the target resource set in one-dimensional or two-dimensional order according to the third order of the CCEs of the sub-control resource sets and the numbering order of the sub-control resource sets, wherein the third order includes one of the following: the numbering order of REG groups, the numbering order of the first REG group, the numbering order of time domain first and then frequency domain, and the numbering order of frequency domain first and then time domain.

[0336] Optionally, the first interleaving function is associated with at least one of the following:

[0337] The interleaving size of the i-th sub-control resource set;

[0338] The number of REGs in the i-th sub-control resource set;

[0339] The number of REG groups in the i-th sub-control resource set;

[0340] The number of REGs contained in the REG of the i-th sub-control resource set;

[0341] The number of REGs contained in the CCE of the i-th sub-control resource set;

[0342] The number of REG groups contained in the CCE of the i-th sub-control resource set;

[0343] The interleaving offset parameter of the i-th sub-control resource set.

[0344] Optionally, the second interleaving function is associated with at least one of the following:

[0345] Interleaving size of the cross-sub control resource set;

[0346] The number of sub-control resource sets included in the target control resource set.

[0347] Optionally, the third interleaving function is associated with at least one of the following:

[0348] The size of the interleaving of the i-th sub-control resource set;

[0349] The number of REGs in the i-th sub-control resource set;

[0350] The number of REG groups in the i-th sub-control resource set;

[0351] The number of REGs contained in the REG of the i-th sub-control resource set;

[0352] The number of REGs contained in the CCE of the i-th sub-control resource set;

[0353] The number of REG groups contained in the CCE of the i-th sub-control resource set;

[0354] The interleaving offset parameter of the i-th sub-control resource set.

[0355] Optionally, the fourth interleaving function is associated with at least one of the following:

[0356] The target control resource set has a uniform interleaving size;

[0357] The number of REGs in the target control resource set;

[0358] The number of REG groups in the target control resource set;

[0359] The number of REGs contained in the REG of the target control resource set;

[0360] The number of REGs contained in the CCE of the target control resource set;

[0361] The number of REG groups contained in the CCE of the target control resource set;

[0362] The interleaving offset parameters of the target control resource set;

[0363] The number of REGs in the i-th sub-control resource set;

[0364] The number of REG groups in the i-th sub-control resource set;

[0365] The number of REGs contained in the REG of the i-th sub-control resource set;

[0366] The number of REGs contained in the CCE of the i-th sub-control resource set;

[0367] The number of REG groups contained in the CCE of the i-th sub-control resource set;

[0368] The interleaving offset parameter of the i-th sub-control resource set.

[0369] Optionally, the number of REG groups included in the CCE of the target control resource set is determined by the protocol or configured by the network-side device;

[0370] Alternatively, the number of REGs contained in the CCE of the target control resource set may be determined by protocol agreement or network-side device configuration, and the number of REG groups contained in the CCE may be determined based on the size of the CCE and the size of the REG groups.

[0371] Optionally, the candidate PDCCH resource satisfies one of the following:

[0372] The candidate PDCCH resources include candidate PDCCHs within each sub-control resource set, and the number of candidate PDCCHs within each sub-control resource set is: P represents the number of candidate PDCCHs configured by the network-side device, and N represents the number of sub-control resource sets.

[0373] The candidate PDCCH resources include those within each sub-control resource set. There are 1 candidate PDCCH, where P is the number of candidate PDCCH groups configured by the network-side device, and M is the number of packets included in the target control resource set. Candidate PDCCHs of sub-control resource sets within the same packet are associated to form the candidate PDCCH group.

[0374] The candidate PDCCH resources include P candidate PDCCHs configured by the network-side devices, and the CCE of each sub-control resource set in the target control resource set is a one-dimensional code.

[0375] Optionally, the CCE number included in the candidate PDCCH is determined by an objective function;

[0376] The objective function is associated with at least one of the following:

[0377] The number of CCEs in the sub-control resource set;

[0378] The maximum or minimum number of CCEs in the sub-control resource set;

[0379] The number of the sub-control resource set;

[0380] The number of sub-control resource sets;

[0381] The number of candidate PDCCHs in the sub-control resource set;

[0382] The aggregation level of candidate PDCCH.

[0383] Optionally, the number of sub-control resource sets is determined based on at least one of the following:

[0384] The agreement specifies; the parameters that are displayed or indicated;

[0385] Configured PDCCH repetition count;

[0386] Whether it is used for secondary downlink control information (DCI);

[0387] Configured Transmit / Receive Point (TRP);

[0388] The size of the list of symbols for the configured sub-control resource set;

[0389] The size of the starting PRB list of the configured sub-control resource set;

[0390] The size of the time-domain offset list of the start symbols of at least two sub-control resource sets relative to the start symbol of the monitoring timing;

[0391] The size of the time-domain offset list of the start symbols of at least two sub-control resource sets relative to the start symbol of the first sub-control resource set.

[0392] Optionally, the number of the sub-control resource set is determined by at least one of the following: the time domain of the sub-control resource set; the frequency domain of the sub-control resource set.

[0393] The resource determination device for the search space provided in this application embodiment can implement the various processes implemented in the method embodiment of FIG2 and achieve the same technical effect. To avoid repetition, it will not be described again here.

[0394] As shown in Figure 4, this application embodiment also provides a communication device 400, including a processor 401 and a memory 402. The memory 402 stores a program or instructions that can run on the processor 401. When the program or instructions are executed by the processor 401, they implement the various steps of the resource determination method embodiment of the search space described above and can achieve the same technical effect. To avoid repetition, they will not be described again here.

[0395] This application also provides a terminal, including a processor and a communication interface, wherein the communication interface is coupled to the processor, and the processor is used to run programs or instructions to implement the steps in the method embodiment shown in FIG2. This terminal embodiment corresponds to the above-described terminal-side method embodiment, and all implementation processes and methods of the above-described method embodiments can be applied to this terminal embodiment and can achieve the same technical effect. The terminal can be a resource determination device for the search space shown in FIG3. Specifically, FIG5 is a schematic diagram of the hardware structure of a terminal implementing an embodiment of this application.

[0396] The terminal 500 includes, but is not limited to, at least some of the following components: radio frequency unit 501, network module 502, audio output unit 503, input unit 504, sensor 505, display unit 506, user input unit 507, interface unit 508, memory 509, and processor 510.

[0397] Those skilled in the art will understand that terminal 500 may also include a power supply (such as a battery) for powering various components. The power supply can be logically connected to processor 510 through a power management system, thereby enabling functions such as charging, discharging, and power consumption management through the power management system. The terminal structure shown in Figure 5 does not constitute a limitation on the terminal. The terminal may include more or fewer components than shown, or combine certain components, or have different component arrangements, which will not be elaborated here.

[0398] It should be understood that, in this embodiment, the input unit 504 may include a graphics processor 5041 and a microphone 5042. The graphics processor 5041 processes image data of still images or videos obtained by an image capture device (such as a camera) in video capture mode or image capture mode. The display unit 506 may include a display panel 5061, which may be configured in the form of a liquid crystal display, an organic light-emitting diode, or the like. The user input unit 507 includes at least one of a touch panel 5071 and other input devices 5072. The touch panel 5071 is also called a touch screen. The touch panel 5071 may include two parts: a touch detection device and a touch controller. Other input devices 5072 may include, but are not limited to, physical keyboards, function keys (such as volume control buttons, power buttons, etc.), trackballs, mice, and joysticks, which will not be described in detail here.

[0399] In this embodiment, after receiving downlink data from the network-side device, the radio frequency unit 501 can transmit it to the processor 510 for processing; in addition, the radio frequency unit 501 can send uplink data to the network-side device. Typically, the radio frequency unit 501 includes, but is not limited to, antennas, amplifiers, transceivers, couplers, low-noise amplifiers, duplexers, etc.

[0400] The memory 509 can be used to store software programs or instructions, as well as various data. The memory 509 may primarily include a first storage area for storing programs or instructions and a second storage area for storing data. The first storage area may store the operating system, application programs or instructions required for at least one function (such as sound playback, image playback, etc.). Furthermore, the memory 509 may include volatile memory or non-volatile memory. The non-volatile memory may be read-only memory (ROM), programmable read-only memory (PROM), erasable programmable read-only memory (EPROM), electrically erasable programmable read-only memory (EEPROM), or flash memory. Volatile memory can be random access memory (RAM), static random access memory (SRAM), dynamic random access memory (DRAM), synchronous dynamic random access memory (SDRAM), double data rate synchronous dynamic random access memory (DDRSDRAM), enhanced synchronous dynamic random access memory (ESDRAM), synchronous link dynamic random access memory (SLDRAM), and direct memory bus RAM (DRRAM). The memory 509 in this embodiment includes, but is not limited to, these and any other suitable types of memory.

[0401] Processor 510 may include one or more processing units; optionally, processor 510 integrates an application processor and a modem processor, wherein the application processor mainly handles operations involving the operating system, user interface, and applications, and the modem processor mainly handles wireless communication signals, such as a baseband processor. It is understood that the aforementioned modem processor may also not be integrated into processor 510.

[0402] The processor 510 is configured to determine candidate physical downlink control channel (PDCCH) resources of the target search space based on the configuration information of the target control resource set and the configuration information of the target search space. The target control resource set includes at least two sub-control resource sets, and the target search space is associated with the target control resource set.

[0403] It is understood that the implementation process of each implementation method mentioned in this embodiment can refer to the relevant description of the method embodiment and achieve the same or corresponding technical effect. To avoid repetition, it will not be described again here.

[0404] This application also provides a network-side device, including a processor and a communication interface. The communication interface is coupled to the processor, and the processor is used to run programs or instructions to implement the steps of the method embodiment shown in FIG2. This network-side device embodiment corresponds to the above-described network-side device method embodiment. All implementation processes and methods of the above-described method embodiments can be applied to this network-side device embodiment and can achieve the same technical effect.

[0405] Specifically, this application embodiment also provides a network-side device, which can be the resource determination device for the search space shown in FIG3. As shown in FIG6, the network-side device 600 includes: an antenna 601, a radio frequency device 602, a baseband device 603, a processor 604, and a memory 605. The antenna 601 is connected to the radio frequency device 602. In the uplink direction, the radio frequency device 602 receives information through the antenna 601 and sends the received information to the baseband device 603 for processing. In the downlink direction, the baseband device 603 processes the information to be transmitted and sends it to the radio frequency device 602. The radio frequency device 602 processes the received information and transmits it through the antenna 601.

[0406] The method executed by the network-side device in the above embodiments can be implemented in the baseband device 603, which includes a baseband processor.

[0407] The baseband device 603 may include at least one baseband board, on which multiple chips are disposed, as shown in FIG6. One of the chips is, for example, a baseband processor, which is connected to the memory 605 via a bus interface to call the program in the memory 605 and execute the network-side device operations shown in the above method embodiments.

[0408] The network-side device may also include a network interface 606, such as a Common Public Radio Interface (CPRI).

[0409] Specifically, the network-side device 600 in this application embodiment further includes: instructions or programs stored in memory 605 and executable on processor 604. Processor 604 calls the instructions or programs in memory 605 to execute the methods executed by each module shown in FIG3 and achieve the same technical effect. To avoid repetition, it will not be described in detail here.

[0410] The processor 604 is configured to determine candidate physical downlink control channel (PDCCH) resources of the target search space based on the configuration information of the target control resource set and the configuration information of the target search space. The target control resource set includes at least two sub-control resource sets, and the target search space is associated with the target control resource set.

[0411] This application also provides a readable storage medium storing a program or instructions. When the program or instructions are executed by a processor, they implement the various processes of the resource determination method embodiment of the search space described above and achieve the same technical effect. To avoid repetition, they will not be described again here.

[0412] The processor mentioned above is the processor in the terminal described in the above embodiments. The readable storage medium includes computer-readable storage media, such as computer read-only memory (ROM), random access memory (RAM), magnetic disk, or optical disk. In some examples, the readable storage medium may be a non-transient readable storage medium.

[0413] This application embodiment also provides a chip, which includes a processor and a communication interface. The communication interface is coupled to the processor. The processor is used to run programs or instructions to implement the various processes of the above-described resource determination method embodiment for the search space, and can achieve the same technical effect. To avoid repetition, it will not be described again here.

[0414] It should be understood that the chip mentioned in the embodiments of this application may also be referred to as a system-on-a-chip, system chip, chip system, or system-on-a-chip, etc.

[0415] This application also provides a computer program / program product, which includes computer instructions. The computer program / program product is executed by at least one processor to implement the various processes of the above-described resource determination method embodiment for the search space, and can achieve the same technical effect. To avoid repetition, it will not be described again here.

[0416] This application also provides a wireless communication system, including: a terminal and a network-side device, wherein the terminal can be used to perform the steps of the search space resource determination method as described above, and the network-side device can be used to perform the steps of the search space resource determination method as described above.

[0417] It should be noted that, in this document, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes that element. Furthermore, it should be noted that the scope of the methods and apparatuses in the embodiments of this application is not limited to performing functions in the order shown or discussed, but may also include performing functions substantially simultaneously or in the reverse order, depending on the functions involved. For example, the described methods may be performed in a different order than described, and various steps may be added, omitted, or combined. Additionally, features described with reference to certain examples may be combined in other examples.

[0418] From the above description of the embodiments, those skilled in the art can clearly understand that the methods of the above embodiments can be implemented by means of computer software products plus necessary general-purpose hardware platforms, and of course, they can also be implemented by hardware. The computer software product is stored in a storage medium (such as ROM, RAM, magnetic disk, optical disk, etc.) and includes several instructions to cause the terminal or network-side device to execute the methods described in the various embodiments of this application.

[0419] The embodiments of this application have been described above with reference to the accompanying drawings. However, this application is not limited to the specific embodiments described above. The specific embodiments described above are merely illustrative and not restrictive. Those skilled in the art can make many other implementations under the guidance of this application without departing from the spirit and scope of the claims. All of these implementations are within the protection scope of this application.

Claims

1. A method for determining resources in a search space, comprising: The target device determines the candidate physical downlink control channel (PDCCH) resources of the target search space based on the configuration information of the target control resource set and the configuration information of the target search space. The target control resource set includes at least two sub-control resource sets, and the target search space is associated with the target control resource set.

2. The method according to claim 1, wherein, The configuration information of the target control resource set or the configuration information of the target search space includes at least one of the following: The number of sub-control resource sets included in the target control resource set; The temporal configuration information of the target control resource set; The frequency domain configuration information of the target control resource set.

3. The method according to claim 2, wherein, The time-domain configuration information of the target control resource set includes at least one of the following: The number of symbols in the target control resource set; The symbol mapping bitmap of the target control resource set; The symbol count or list of symbol counts for the at least two sub-control resource sets; At least two sub-control resource sets; a symbol number interval or a list of symbol number intervals. A symbol number interval or a list of symbol number intervals between the start symbols of at least two sub-control resource sets; A bitmap of symbol mappings for at least two sub-control resource sets; A bitmap of start symbol mappings for at least two sub-control resource sets; A list of time-domain offsets of the start symbols of at least two sub-control resource sets relative to the start symbol of the monitoring timing; A list of time-domain offsets of the start symbols of at least two sub-control resource sets relative to the start symbol of the first sub-control resource set.

4. The method according to claim 2, wherein, The frequency domain configuration information of the target control resource set includes at least one of the following: List of starting physical resource block (PRB) locations for at least two sub-control resource sets; The PRB location list of the at least two sub-control resource sets; The at least two sub-control resource sets are relative to the PRB position or PRB position list of the starting PRB.

5. The method according to any one of claims 1 to 4, further comprising: The target device determines the time-domain information of the monitoring timing of the search space corresponding to at least two sub-control resource sets in the target control resource set according to the first rule; The first rule includes one of the following: The temporal position of the i-th sub-control resource set is determined based on the start symbol of the monitoring timing and the number of temporal symbols of the sub-control resource set; The temporal position of the i-th sub-control resource set is determined based on the start symbol of the monitoring timing, the temporal symbol number of the sub-control resource set, and the symbol number interval between two adjacent sub-control resource sets; The temporal position of the i-th sub-control resource set is determined based on the start symbol of the i-th sub-control resource set and the number of symbols contained in the i-th sub-control resource set; The temporal position of the i-th sub-control resource set is determined based on the start symbol of the monitoring timing and the number of temporal symbols of the sub-control resource set, wherein the sub-control resource set starts from the start symbol of the latter of the two time slots; The temporal position of the i-th sub-control resource set is determined based on the start symbol of the monitoring timing, the number of time-domain symbols of the sub-control resource set, and the symbol interval between two adjacent sub-control resource sets. The sub-control resource set starts from the start symbol of the second time slot of the two time slots. The at least two sub-control resource sets correspond one-to-one with at least two first time units, and the at least two first time units are consecutive time slot groups, time slots or sub-time slots, and the time domain position of the i-th sub-control resource set is located on the corresponding second time unit; The time-domain position of the i-th sub-control resource set is determined based on the start symbol of the i-th sub-control resource set and the number of symbols contained in the i-th sub-control resource set. The start symbol of the i-th sub-control resource set is determined based on the bit map of the start symbol of the monitoring timing and the start symbol of the sub-control resource set. The temporal position of the i-th sub-control resource set is determined based on the start symbol of the i-th sub-control resource set and the number of symbols contained in the i-th sub-control resource set. The start symbol of the i-th sub-control resource set is determined based on the start symbol of the monitoring timing and the temporal offset of the sub-control resource set. The temporal position of the i-th sub-control resource set is determined based on the start symbol of the i-th sub-control resource set and the number of symbols contained in the i-th sub-control resource set. The start symbol of the i-th sub-control resource set is determined based on the start symbol of the first sub-control resource set and the temporal offset of the sub-control resource set relative to the start symbol. The start symbol of the first sub-control resource set is determined based on the start symbol of the monitoring timing. The at least two sub-control resource sets are located in the same second time unit, which is a time slot group, time slot, or sub-time slot.

6. The method according to any one of claims 1 to 5, wherein the method further comprises: The target device determines the frequency domain information of the monitoring timing of the search space corresponding to the at least two sub-control resource sets according to the second rule; The second rule includes one of the following: The PRB corresponding to the i-th sub-control resource set is determined based on the starting PRB corresponding to the i-th sub-control resource set and the number of PRBs corresponding to the i-th sub-control resource set. The PRB corresponding to the i-th sub-control resource set is determined based on the starting PRB corresponding to the i-th sub-control resource set and the first bit map, where each bit value in the first bit map is associated with a PRB group. The PRB corresponding to the i-th sub-control resource set is determined based on the resource indicator value (RIV).

7. The method according to claim 6, wherein, The starting PRB corresponding to the i-th sub-control resource set is determined based on any of the following: Explicitly configured PRB; The starting PRB for the target object configured for the i-th sub-control resource set; The i-th indicator in the second bitmap is the start PRB of the target object with a preset value. The second bitmap is a bitmap that configures Q target objects, where Q is the number of PRBs corresponding to the i-th sub-control resource set. The target object includes any one of the following: a resource block set, a frequency portion, a bandwidth portion, and a carrier.

8. The method according to any one of claims 1 to 7, further comprising: The target device assigns one-dimensional or two-dimensional numbers to the REG of each sub-control resource set in the target resource set according to the first order of the resource element group REG of the sub-control resource set and the numbering order of the sub-control resource set. The first order is either a numbering order of time domain first and then frequency domain, or a numbering order of frequency domain first and then time domain.

9. The method according to claim 8, further comprising: The target device maps REG groups according to the numbering or size order of REGs in the sub-control resource set to obtain REG groups; The target device assigns one-dimensional or two-dimensional numbers to the REG groups of each sub-control resource set in the target resource set according to the second order of the REG groups of the sub-control resource sets and the numbering order of the sub-control resource sets. The second order includes one of the following: the numbering order of REGs, the numbering order of the starting REGs, the numbering order of time domain first and then frequency domain, and the numbering order of frequency domain first and then time domain.

10. The method according to any one of claims 1 to 9, wherein the method further comprises: The target device performs control channel element (CCE) mapping to obtain the CCE of the target control resource set; Wherein, the CCE mapping satisfies at least one of the following: CCE mapping is performed according to the numbering or size order of the REG groups in the sub-control resource set; The mapping from REG groups to CCE within the i-th sub-control resource set is performed according to the first interleaving function; The order of CCE mapping is determined based on the sub-control resource set number and first information, the first information including one of the following: REG time domain, REG frequency domain, REG time domain and REG frequency domain, REG group number; The mapping from the sub-control resource set number to the interleaving number of the sub-control resource set is completed according to the second interleaving function, which is an interleaving function across sub-control resource sets; The mapping from REG group numbers within the sub-control resource set to REG group interleaving numbers within the sub-control resource set is completed according to the third interleaving function, wherein the third interleaving function is the interleaving function within the sub-control resource set; The mapping from REG groups across sub-control resource sets to CCEs is performed based on the fourth interleaving function.

11. The method according to claim 10, further comprising: The target device assigns one-dimensional or two-dimensional numbers to the CCEs of each sub-control resource set in the target resource set according to the third order of the CCEs of the sub-control resource sets and the numbering order of the sub-control resource sets. The third order includes one of the following: the numbering order of REG groups, the numbering order of the first REG group, the numbering order of time domain first and then frequency domain, and the numbering order of frequency domain first and then time domain.

12. The method according to claim 10, wherein, The first interleaving function is associated with at least one of the following: The interleaving size of the i-th sub-control resource set; The number of REGs in the i-th sub-control resource set; The number of REG groups in the i-th sub-control resource set; The number of REGs contained in the REG of the i-th sub-control resource set; The number of REGs contained in the CCE of the i-th sub-control resource set; The number of REG groups contained in the CCE of the i-th sub-control resource set; The interleaving offset parameter of the i-th sub-control resource set.

13. The method according to claim 10, wherein, The second interleaving function is associated with at least one of the following: Interleaving size of the cross-sub control resource set; The number of sub-control resource sets included in the target control resource set.

14. The method of claim 10, wherein, The third interleaving function is associated with at least one of the following: The size of the interleaving of the i-th sub-control resource set; The number of REGs in the i-th sub-control resource set; The number of REG groups in the i-th sub-control resource set; The number of REGs contained in the REG of the i-th sub-control resource set; The number of REGs contained in the CCE of the i-th sub-control resource set; The number of REG groups contained in the CCE of the i-th sub-control resource set; The interleaving offset parameter of the i-th sub-control resource set.

15. The method according to claim 10, wherein, The fourth interleaving function is associated with at least one of the following: The target control resource set has a uniform interleaving size; The number of REGs in the target control resource set; The number of REG groups in the target control resource set; The number of REGs contained in the REG of the target control resource set; The number of REGs contained in the CCE of the target control resource set; The number of REG groups contained in the CCE of the target control resource set; The interleaving offset parameters of the target control resource set; The number of REGs in the i-th sub-control resource set; The number of REG groups in the i-th sub-control resource set; The number of REGs contained in the REG of the i-th sub-control resource set; The number of REGs contained in the CCE of the i-th sub-control resource set; The number of REG groups contained in the CCE of the i-th sub-control resource set; The interleaving offset parameter of the i-th sub-control resource set.

16. The method according to any one of claims 1 to 15, wherein, The number of REG groups included in the CCE of the target control resource set is determined by the protocol or configured by the network-side device. Alternatively, the number of REGs contained in the CCE of the target control resource set may be determined by protocol agreement or network-side device configuration, and the number of REG groups contained in the CCE may be determined based on the size of the CCE and the size of the REG groups.

17. The method according to any one of claims 1 to 16, wherein, The candidate PDCCH resource satisfies one of the following: The candidate PDCCH resources include candidate PDCCHs within each sub-control resource set, and the number of candidate PDCCHs within each sub-control resource set is: P represents the number of candidate PDCCHs configured by the network-side device, and N represents the number of sub-control resource sets. The candidate PDCCH resources include those within each sub-control resource set. There are 1 candidate PDCCH, where P is the number of candidate PDCCH groups configured by the network-side device, and M is the number of packets included in the target control resource set. Candidate PDCCHs of sub-control resource sets within the same packet are associated to form the candidate PDCCH group. The candidate PDCCH resources include P candidate PDCCHs configured by the network-side devices, and the CCE of each sub-control resource set in the target control resource set is a one-dimensional code.

18. The method according to claim 17, wherein, The CCE number included in the candidate PDCCH is determined by an objective function; The objective function is associated with at least one of the following: The number of CCEs in the sub-control resource set; The maximum or minimum number of CCEs in the sub-control resource set; The number of the sub-control resource set; The number of sub-control resource sets; The number of candidate PDCCHs in the sub-control resource set; The aggregation level of candidate PDCCH.

19. The method according to any one of claims 1 to 18, wherein, The number of sub-control resource sets is determined based on at least one of the following: The agreement stipulates; Displays configuration or indicated parameters; The configured number of PDCCH repetitions; Whether it is used for secondary downlink control information (DCI); Configured Transmit / Receive Point (TRP); The size of the list of symbols for the configured sub-control resource set; The size of the starting PRB list of the configured sub-control resource set; The size of the time-domain offset list of the start symbols of at least two sub-control resource sets relative to the start symbol of the monitoring timing; The size of the time-domain offset list of the start symbols of at least two sub-control resource sets relative to the start symbol of the first sub-control resource set.

20. The method according to any one of claims 1 to 19, wherein, The number of the sub-control resource set is determined by at least one of the following: the time domain of the sub-control resource set; the frequency domain of the sub-control resource set.

21. A resource determination device for a search space, comprising: The processing module is used to determine the candidate physical downlink control channel (PDCCH) resources of the target search space based on the configuration information of the target control resource set and the configuration information of the target search space. The target control resource set includes at least two sub-control resource sets, and the target search space is associated with the target control resource set.

22. The apparatus according to claim 21, wherein, The processing module is also used to determine the time-domain information of the monitoring timing of the search space corresponding to at least two sub-control resource sets in the target control resource set according to the first rule; The first rule includes one of the following: The temporal position of the i-th sub-control resource set is determined based on the start symbol of the monitoring timing and the number of temporal symbols of the sub-control resource set; The temporal position of the i-th sub-control resource set is determined based on the start symbol of the monitoring timing, the temporal symbol number of the sub-control resource set, and the symbol number interval between two adjacent sub-control resource sets; The temporal position of the i-th sub-control resource set is determined based on the start symbol of the i-th sub-control resource set and the number of symbols contained in the i-th sub-control resource set; The temporal position of the i-th sub-control resource set is determined based on the start symbol of the monitoring timing and the number of temporal symbols of the sub-control resource set, wherein the sub-control resource set starts from the start symbol of the latter of the two time slots; The temporal position of the i-th sub-control resource set is determined based on the start symbol of the monitoring timing, the number of time-domain symbols of the sub-control resource set, and the symbol interval between two adjacent sub-control resource sets. The sub-control resource set starts from the start symbol of the second time slot of the two time slots. The at least two sub-control resource sets correspond one-to-one with at least two first time units, and the at least two first time units are consecutive time slot groups, time slots or sub-time slots, and the time domain position of the i-th sub-control resource set is located on the corresponding second time unit; The time-domain position of the i-th sub-control resource set is determined based on the start symbol of the i-th sub-control resource set and the number of symbols contained in the i-th sub-control resource set. The start symbol of the i-th sub-control resource set is determined based on the bit map of the start symbol of the monitoring timing and the start symbol of the sub-control resource set. The temporal position of the i-th sub-control resource set is determined based on the start symbol of the i-th sub-control resource set and the number of symbols contained in the i-th sub-control resource set. The start symbol of the i-th sub-control resource set is determined based on the start symbol of the monitoring timing and the temporal offset of the sub-control resource set. The temporal position of the i-th sub-control resource set is determined based on the start symbol of the i-th sub-control resource set and the number of symbols contained in the i-th sub-control resource set. The start symbol of the i-th sub-control resource set is determined based on the start symbol of the first sub-control resource set and the temporal offset of the sub-control resource set relative to the start symbol. The start symbol of the first sub-control resource set is determined based on the start symbol of the monitoring timing. The at least two sub-control resource sets are located in the same second time unit, which is a time slot group, time slot, or sub-time slot.

23. The apparatus according to claim 21 or 22, wherein, The processing module is also used to determine the frequency domain information of the monitoring timing of the search space corresponding to the at least two sub-control resource sets according to the second rule; The second rule includes: The PRB corresponding to the i-th sub-control resource set is determined based on the starting PRB corresponding to the i-th sub-control resource set and the number of PRBs corresponding to the i-th sub-control resource set. The PRB corresponding to the i-th sub-control resource set is determined based on the starting PRB corresponding to the i-th sub-control resource set and the first bit map, where each bit value in the first bit map is associated with a PRB group. The PRB corresponding to the i-th sub-control resource set is determined based on the resource indicator value (RIV).

24. The apparatus according to any one of claims 21 to 23, wherein, The processing module is further configured to perform one-dimensional or two-dimensional numbering on the REG of each sub-control resource set in the target resource set according to the first order of the resource element group REG of the sub-control resource set and the numbering order of the sub-control resource set. The first order is either a numbering order of time domain first and then frequency domain, or a numbering order of frequency domain first and then time domain.

25. The apparatus according to claim 24, wherein, The processing module is also used to map REG groups according to the numbering order or size order of REGs in the sub-control resource set to obtain REG groups; The target device assigns one-dimensional or two-dimensional numbers to the REG groups of each sub-control resource set in the target resource set according to the second order of the REG groups of the sub-control resource sets and the numbering order of the sub-control resource sets. The second order includes any one of the following: the numbering order of REGs, the numbering order of the first REG, the numbering order of time domain first and then frequency domain, and the numbering order of frequency domain first and then time domain.

26. The apparatus according to any one of claims 21 to 25, wherein, The processing module is also used to perform control channel element (CCE) mapping to obtain the CCE of the target control resource set; Wherein, the CCE mapping satisfies at least one of the following: CCE mapping is performed according to the numbering or size order of the REG groups in the sub-control resource set; The mapping from REG groups to CCE within the i-th sub-control resource set is performed according to the first interleaving function; The order of CCE mapping is determined based on the sub-control resource set number and first information, the first information including one of the following: REG time domain, REG frequency domain, REG time domain and REG frequency domain, REG group number; The mapping from the sub-control resource set number to the interleaving number of the sub-control resource set is completed according to the second interleaving function, which is an interleaving function across sub-control resource sets; The mapping from REG group numbers within the sub-control resource set to REG group interleaving numbers within the sub-control resource set is completed according to the third interleaving function, wherein the third interleaving function is the interleaving function within the sub-control resource set; The mapping from REG groups across sub-control resource sets to CCEs is performed based on the fourth interleaving function.

27. The apparatus according to claim 26, wherein, The processing module is further configured to perform one-dimensional or two-dimensional numbering of the CCE of each sub-control resource set in the target resource set according to the third order of the CCE of the sub-control resource set and the numbering order of the sub-control resource set. The third order includes one of the following: the numbering order of REG groups, the numbering order of the first REG group, the numbering order of time domain first and then frequency domain, and the numbering order of frequency domain first and then time domain.

28. A terminal comprising a processor and a memory, the memory storing a program or instructions executable on the processor, the program or instructions, when executed by the processor, implementing the steps of the resource determination method for a search space as described in any one of claims 1 to 20.

29. A network-side device, comprising a processor and a memory, the memory storing a program or instructions executable on the processor, the program or instructions, when executed by the processor, implementing the steps of the resource determination method for the search space as described in any one of claims 1 to 20.

30. A readable storage medium storing a program or instructions that, when executed by a processor, implement the steps of the resource determination method for a search space as described in any one of claims 1 to 20.

31. A computer program product comprising computer instructions that, when executed by a processor, implement the steps of the resource determination method for a search space as described in any one of claims 1 to 20.

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