Rate matching method under dynamic spectrum sharing, related equipment and communication system

Abstract

The present disclosure provides a rate matching method, related equipment and communication system under dynamic spectrum sharing, relating to the field of wireless communication. A dynamic spectrum sharing mode is configured, and in the dynamic spectrum sharing mode, a first standard PDCCH and a second standard PDCCH are frequency division multiplexed; a virtual control resource set is configured for first standard PDCCH rate matching, the virtual control resource set does not contain a search space; a real control resource set is configured for second standard PDCCH rate matching, the real control resource set contains one or more search spaces; rate matching is configured, and the configuration information of the rate matching carries the virtual control resource set and the real control resource set. Through the CORESET mode, the rate matching of two standard PDCCHs is realized at the same time, the optimization of network performance is realized, the user experience is improved, the existing standard does not need to be changed, the network compatibility is good, and the requirements of network performance and network compatibility are considered at the same time.

Description

TECHNICAL FIELD

[0001] The present disclosure relates to the field of wireless communication, and particularly relates to a rate matching method under dynamic spectrum sharing, related equipment and a communication system. BACKGROUND

[0002] In a dynamic spectrum sharing scenario with unequal bandwidth, taking 2.1G FDD (Frequency Division Duplexing) 40M DSS (Dynamic Spectrum Sharing) as an example, the PDCCH (Physical Downlink Control Channel) of LTE (Long Term Evolution) and the PDCCH of 5G (5th Generation Mobile Network) NR (New Radio) are frequency division multiplexed, as shown in Figure 1

[0003] In a 5G network, due to a large system bandwidth, the PDCCH usually does not occupy the entire bandwidth, in order to utilize the RE (Resource Element) resources not occupied by the PDCCH in the PDCCH symbol, the network usually schedules these unoccupied RE resources through PDCCH rate matching, as shown in Figure 2

[0004] There are two ways of rate matching in 5G: RB (Resource Block) level rate matching and CORESET (Control Resource Set) rate matching. In a dynamic spectrum sharing scenario, when the CORESET mode is used to configure rate matching, only the rate matching of the NR PDCCH can be configured, and the rate matching of the PDCCH cannot be realized. When the RB level rate matching is used, the terminal has compatibility problems and cannot normally detect the NR PDCCH. During terminal compatibility testing, this problem was found.

[0005] Therefore, in a dynamic spectrum sharing scenario, when the LTE PDCCH and the NR PDCCH are frequency division multiplexed, the rate matching of the PDCCH cannot be realized, and the optimization of the network performance cannot be realized. SUMMARY

[0006] ​​The embodiment of the present disclosure proposes a rate matching method under dynamic spectrum sharing, which simultaneously realizes rate matching of PDCCHs of two systems through CORESET mode, for example, a set of virtual CORESETs are configured in an NR network for rate matching of LTE PDCCHs, and a set of real CORESETs are configured in the NR network for rate matching of NR PDCCHs, which simultaneously realizes rate matching of LTE PDCCHs and NR PDCCHs through CORESET mode, optimizes network performance, improves user experience, does not need to change the existing standard, and has good network compatibility, so as to simultaneously meet the requirements of network performance and network compatibility.

[0007] The embodiment of the present disclosure proposes a rate matching method under dynamic spectrum sharing, which includes:

[0008] Configuring a dynamic spectrum sharing mode, in which a first system PDCCH and a second system PDCCH are frequency division multiplexed;

[0009] Configuring a virtual control resource set for rate matching of the first system PDCCH, the virtual control resource set not containing a search space;

[0010] Configuring a real control resource set for rate matching of the second system PDCCH, the real control resource set containing one or more search spaces;

[0011] Configuring rate matching, and the configuration information of the rate matching carries the virtual control resource set and the real control resource set.

[0012] In some embodiments, a common control resource set is further configured for notifying remaining minimum system information.

[0013] The embodiment of the present disclosure proposes a rate matching method under dynamic spectrum sharing, which includes:

[0014] Receiving configuration information of a dynamic spectrum sharing mode, in which a first system PDCCH and a second system PDCCH are frequency division multiplexed;

[0015] Receiving configuration information of a virtual control resource set, the virtual control resource set being used for rate matching of the first system PDCCH, and the virtual control resource set not containing a search space;

[0016] Receiving configuration information of a real control resource set, the real control resource set being used for rate matching of the second system PDCCH, and the real control resource set containing one or more search spaces;

[0017] Receiving configuration information of rate matching, and the configuration information of the rate matching carries the virtual control resource set and the real control resource set.

[0018] determining the first standard PDCCH according to the virtual control resource set;

[0019] determining the second standard PDCCH according to the real control resource set.

[0020] In some embodiments, further comprising: receiving configuration information of a common control resource set, the common control resource set being used for notifying remaining minimum system information; and determining the remaining minimum system information according to the common control resource.

[0021] In some embodiments, the virtual control resource set and the real control resource set do not overlap.

[0022] In some embodiments, a starting resource block of the virtual control resource set is a starting resource block of the first standard PDCCH in the second standard frequency band.

[0023] In some embodiments, a bandwidth of the virtual control resource set is determined according to a first standard bandwidth, a resource block number of a control resource set, a conversion factor from a second standard subcarrier bandwidth to a first standard subcarrier bandwidth.

[0024] In some embodiments, the bandwidth of the virtual control resource set is a first standard bandwidth divided by a product of a resource block number of a control resource set and the conversion factor and rounded up.

[0025] In some embodiments, the configuring rate matching comprises: configuring rate matching in radio resource control (RRC) signaling, and the virtual control resource set and the real control resource set are carried in configuration information of the rate matching.

[0026] In some embodiments, the first standard comprises long term evolution (LTE), and the second standard comprises new radio (NR).

[0027] Some embodiments of the present disclosure provide a network device, comprising: a memory; and a processor coupled to the memory, the processor being configured to execute a rate matching method performed by a network side based on instructions stored in the memory.

[0028] Some embodiments of the present disclosure provide a terminal device, comprising: a memory; and a processor coupled to the memory, the processor being configured to execute a rate matching method performed by a terminal side based on instructions stored in the memory.

[0029] Some embodiments of the present disclosure provide a communication system, comprising: a network device and a terminal device.

[0030] Some embodiments of the present disclosure provide a non-transitory computer readable storage medium having stored thereon a computer program which, when executed by a processor, implements the steps of the rate matching method. BRIEF DESCRIPTION OF DRAWINGS

[0031] The drawings needed to be used in the following description of embodiments or related technologies will be briefly introduced. According to the following detailed description with reference to the drawings, the present disclosure can be more clearly understood.

[0032] Obviously, the drawings in the following description are only some embodiments of the present disclosure, and other drawings can be obtained by those skilled in the art without creative labor based on these drawings.

[0033] Figure 1 A schematic diagram of LTE PDCCH and NR PDCCH in dynamic spectrum sharing is shown.

[0034] Figure 2 A schematic diagram of PDCCH rate matching is shown.

[0035] Figure 3 A flowchart of the rate matching method in dynamic spectrum sharing according to some embodiments of the present disclosure is shown.

[0036] Figure 4 A flowchart of the rate matching method in dynamic spectrum sharing according to some embodiments of the present disclosure is shown.

[0037] Figure 5 A schematic diagram of a communication system according to some embodiments of the present disclosure is shown.

[0038] Figure 6 A schematic diagram of a network device according to some embodiments of the present disclosure is shown.

[0039] Figure 7 A schematic diagram of a terminal device according to some embodiments of the present disclosure is shown. DETAILED DESCRIPTION

[0040] The technical solutions in the embodiments of the present disclosure will be described clearly and completely in combination with the drawings in the embodiments of the present disclosure.

[0041] Unless specifically stated, the "first", "second", and the like descriptions in the present disclosure are used to distinguish different objects, and do not represent size or time sequence and the like meanings.

[0042] PDCCH is a downlink control channel, which carries DCI (Downlink Control Information) of PUSCH (Physical Uplink Shared Channel) and PDSCH (Physical Downlink Shared Channel).

[0043] In LTE, PDCCH occupies the entire bandwidth in the frequency domain and occupies the first 1-3 symbols of each subframe in the time domain, which is dynamically scheduled by the number of resources. In 5G, since the bandwidth of 5G is increased, it is obviously unwise for PDCCH to still occupy the entire frequency band in 5G. Therefore, 5G proposes the concept of BWP (Bandwidth Part). BWP is a subset of the total bandwidth of a cell, which is flexibly adjusted by bandwidth adaptation in NR to adjust the size of the UE receiving / transmitting bandwidth, so that the UE receiving / transmitting bandwidth does not need to be as large as the bandwidth of the cell. Due to this change, the scheduling of DCI in NR has changed. Instead of using a dedicated channel to indicate that PDCCH occupies several OFDM (Orthogonal Frequency Division Multiplexing) symbols, a channel called CORESET is used to indicate the time-frequency resources occupied by PDCCH, and CORESET is set in each BWP.

[0044] CORESET is a set of physical resources. Each CORESET contains one or more search spaces (Search Space). Search space refers to the resources in a slot that are assigned or allocated to a UE for finding its PDCCH. The search space includes a set of control channel elements (CCEs) from which the UE can find its PDCCH. Each UE can monitor a predetermined search space in the PDCCH region of the downlink slot.

[0045] That is, in 5G, the UE (User Equipment) needs to know the location of PDCCH in the frequency domain / time domain to decode PDCCH. The NR system puts information such as the number of PDCCH time-frequency symbols in CORESET, and puts information such as the starting OFDM symbol number of PDCCH and the PDCCH detection period in the search space (Search Space). The location of PDCCH can be determined through CORESET and search space.

[0046] The following introduces the parameters related to CORESET.

[0047] RE(Resource Element, resource element): composed of one subcarrier in frequency domain and one OFDM symbol in time domain.

[0048] RB(Resource Block, resource block): composed of 12 REs.

[0049] REG(Resource Element Group, resource element group): composed of one RB (12 REs) in frequency domain and one OFDM symbol in time domain.

[0050] REG Bundles: composed of multiple REGs, the number of which is determined by the RRC parameter reg-bundle-size.

[0051] CCE(Control channel element, control channel element): composed of 6 REGs.

[0052] Aggregation Level: indicates how many CCEs are allocated to PDCCH, the mapping relationship is shown in the following table:

[0053] Aggregation level Number of CCEs 1 1 2 2 4 4 8 8 16 16

[0054] The REGs in the CORESET are labeled in increasing order of time domain priority, and 0 represents the first OFDM symbol in time domain and the smallest RB in frequency domain. A UE can be configured with multiple CORESETs, each of which is associated with only one CCE-REG mapping.

[0055] A CORESET can be composed of multiple RBs in frequency domain and several (1 / 2 / 3) OFDM (Orthogonal Frequency Division Multiplexing, OFDM) symbols in time domain.

[0056] Control resources (e.g., RE, CCE) can be divided into different CORESETs, and different CORESETs are defined with different IDs. Among them, CORESET 0 is specially used to carry the DCI scheduling information of SIB1 (System Information Block 1). The Control Resource Set message in the radio resource control (Radio Resource Control, RRC) message carries the scheduling information of other CORESETs except CORESET 0. Because the control information indicated by CORESET 0 carries the scheduling information of SIB1, it is very important, and a parameter set is defaulted for user equipment to perform blind detection.

[0057] Spectrum sharing can be achieved in both static and dynamic ways. Static spectrum sharing refers to providing dedicated carriers for different technologies (such as 4G and 5G) in the same frequency band. This approach is "simple and transparent", but the spectrum utilization is low. Dynamic spectrum sharing (DSS) refers to dynamically and flexibly allocating spectrum resources for different technologies in the same frequency band. For example, 4G and 5G dynamic spectrum sharing refers to allowing 4G LTE and 5G NR to share the same spectrum and dynamically allocating time-frequency resources to 4G and 5G users. This approach can improve spectrum efficiency and facilitate smooth evolution between 4G and 5G.

[0058] Figure 3 A flowchart of a rate matching method in dynamic spectrum sharing according to some embodiments of the disclosure is shown. The method of this embodiment can be performed at the network side and by a network device. The network device includes, for example, a base station.

[0059] As shown in the figure, the method of this embodiment includes the following steps. Figure 3

[0060] In step 310, a dynamic spectrum sharing mode is configured, in which the first technology PDCCH and the second technology PDCCH are frequency division multiplexed.

[0061] The first technology includes LTE, and the second technology includes NR, but is not limited to the examples shown.

[0062] In step 320, a common control resource set (CORESET 0) is configured for notifying remaining minimum system information (RMSI).

[0063] System information is divided into two parts: MIB (master information block) and RMSI. RMSI mainly refers to SIB1. In a 5G (NR) network, SIB1 carries scheduling of UE access and other system information, and provides common radio resource information and information required for unified access control for UEs.

[0064] In step 330, a virtual control resource set (CORESET i) is configured for rate matching of the first technology PDCCH, and the virtual control resource set does not contain a search space.

[0065] The starting resource block of the virtual control resource set is the starting resource block of the first technology PDCCH in the second technology frequency band. For example, the starting RB of CORESET i is the starting RB of the LTE PDCCH in the NR frequency band.​

[0066] The bandwidth of the virtual control resource set is determined according to the first mode bandwidth, the number of resource blocks of the control resource set, a conversion factor from the second mode subcarrier bandwidth to the first mode subcarrier bandwidth. For example, the bandwidth of the virtual control resource set is the first mode bandwidth divided by the product of the number of resource blocks of the control resource set and the conversion factor, and is rounded up. For example, the bandwidth of CORESETi is equal to wherein ceiling represents rounding up, LTE BW represents the LTE bandwidth, 6 represents the number of resource blocks of the control resource set, 2 μ represents the conversion factor. Assuming that the LTE subcarrier bandwidth is 15K, the NR subcarrier bandwidth is 15K, μ = 0, assuming that the LTE subcarrier bandwidth is 15K, the NR subcarrier bandwidth is 30K, μ = 1, assuming that the LTE subcarrier bandwidth is 15K, the NR subcarrier bandwidth is 60K, μ = 2, assuming that the LTE subcarrier bandwidth is 15K, the NR subcarrier bandwidth is 120K, μ = 3.

[0067] In step 340, a real control resource set (CORESET j) is configured for the second mode PDCCH rate matching, the real control resource set containing one or more search spaces.

[0068] The virtual control resource set and the real control resource set do not overlap.

[0069] In step 350, rate matching is configured, and the virtual control resource set and the real control resource set are carried in the configuration information of the rate matching.

[0070] The rate matching is configured in the radio resource control (RRC) signaling, and the virtual control resource set and the real control resource set are carried in the configuration information of the rate matching.

[0071] The embodiments of the present disclosure propose a rate matching method under dynamic spectrum sharing, which simultaneously realizes PDCCH rate matching of two modes through CORESET, optimizes network performance, improves user experience, does not need to change the existing standard, and has good network compatibility, so as to simultaneously meet the requirements of network performance and network compatibility. For example, a virtual CORESET is configured in the NR network for LTE PDCCH rate matching, and a real CORESET is configured in the NR network for NR PDCCH rate matching, which simultaneously realizes LTE PDCCH and NR PDCCH rate matching through CORESET, optimizes network performance, improves user experience, does not need to change the existing standard, and has good network compatibility, so as to simultaneously meet the requirements of network performance and network compatibility.

[0072] Figure 4A flowchart of a rate matching method under dynamic spectrum sharing according to some embodiments of the present disclosure is shown. The method of this embodiment can be performed at the terminal side, by a terminal device. The terminal device includes, for example, the user equipment described above.

[0073] As shown in Figure 4 , the method of this embodiment includes the following steps.

[0074] In step 410, configuration information of a dynamic spectrum sharing mode is received, in which a first standard PDCCH and a second standard PDCCH are frequency division multiplexed.

[0075] The first standard includes LTE, and the second standard includes NR, but is not limited to the examples shown.

[0076] In step 420, configuration information of a common control resource set is received, which is used to notify the remaining minimum system information; and the remaining minimum system information is determined according to the common control resource.

[0077] In step 430, configuration information of a virtual control resource set is received, which is used for first standard PDCCH rate matching, and the virtual control resource set does not contain a search space.

[0078] In step 440, configuration information of a real control resource set is received, which is used for second standard PDCCH rate matching, and the real control resource set contains one or more search spaces.

[0079] In step 450, rate matching configuration information is received, which carries the virtual control resource set and the real control resource set.

[0080] The RRC signaling issued by the network side is received, which carries the rate matching configuration information, such as the virtual control resource set and the real control resource set.

[0081] In step 460, the first standard PDCCH is determined according to the virtual control resource set, and the second standard PDCCH is determined according to the real control resource set.

[0082] The first standard PDCCH is determined according to the starting resource block and bandwidth of the virtual control resource set.

[0083] The second standard PDCCH is determined by searching according to the real control resource set and its search space.

[0084] The embodiments of the present disclosure propose a rate matching method under dynamic spectrum sharing, which simultaneously realizes two kinds of PDCCH rate matching of different systems through CORESET, optimizes network performance, improves user experience, does not need to change the existing standard, and has good network compatibility, so as to simultaneously consider the requirements of network performance and network compatibility.

[0085] Figure 5 A schematic diagram of a communication system is shown to illustrate some embodiments of the present disclosure. As shown in Figure 5 the communication system 500 of this embodiment includes a network device 600 and a terminal device 700. The network device 600 is configured to perform the rate matching method performed by the network side, which is described in detail in the embodiment shown in Figure 3 the terminal device 700 is configured to perform the rate matching method performed by the terminal side, which is described in detail in the embodiment shown in Figure 4 .

[0086] Figure 6 A schematic diagram of a network device is shown to illustrate some embodiments of the present disclosure.

[0087] As shown in Figure 6 the network device 600 of this embodiment includes a memory 610 and a processor 620 coupled to the memory 610, and the processor 620 is configured to perform the rate matching method performed by the network side in any of the foregoing embodiments based on the instructions stored in the memory 610, which is described in detail in the embodiment shown in Figure 3 .

[0088] The memory 610 may, for example, include system memory, fixed non-volatile storage medium, etc. The system memory, for example, stores operating systems, application programs, boot loaders and other programs, etc.

[0089] The processor 620 may be implemented in the form of a general-purpose processor, a digital signal processor (DSP), an application-specific integrated circuit (ASIC), a field programmable gate array (FPGA) or other programmable logic device, a discrete hardware component, or a combination thereof.

[0090] The network device 600 can further include an input / output interface 630, a network interface 640, a storage interface 650, etc. These interfaces 630, 640, 650 and the memory 610 and the processor 620 can be connected through a bus 660, for example. Among them, the input / output interface 630 provides a connection interface for display, mouse, keyboard, touch screen and other input / output devices. The network interface 640 provides a connection interface for various networking devices. The storage interface 650 provides a connection interface for external storage devices such as SD card and U disk. The bus 660 can use any of a variety of bus structures. For example, the bus structure includes but is not limited to Industry Standard Architecture (ISA) bus, Micro Channel Architecture (MCA) bus, Peripheral Component Interconnect (PCI) bus.

[0091] Figure 7 A schematic diagram of a terminal device illustrating some embodiments of the present disclosure.

[0092] As Figure 7 shown, the terminal device 700 of this embodiment includes a memory 710 and a processor 720 coupled to the memory 710, and the processor 720 is configured to perform the rate matching method performed by the terminal side in any of the foregoing some embodiments based on instructions stored in the memory 710, which will be described in detail with reference to the embodiment shown in Figure 4 .

[0093] Among them, the memory 710 can include system memory, fixed non-volatile storage medium, etc. For example, the system memory stores operating systems, application programs, Boot Loader and other programs, etc.

[0094] Among them, the processor 720 can be implemented by general-purpose processors, Digital Signal Processors (DSP), Application Specific Integrated Circuits (ASIC), Field Programmable Gate Arrays (FPGA) or other programmable logic devices, discrete gates or transistors, etc. discrete hardware component manner.

[0095] The terminal device 700 can further include an input / output interface 730, a network interface 740, a storage interface 750, and the like. These interfaces 730, 740, 750, and the memory 710 and the processor 720 can be connected, for example, through a bus 760. Among them, the input / output interface 730 provides a connection interface for display, mouse, keyboard, touch screen, and the like input / output devices. The network interface 740 provides a connection interface for various networking devices. The storage interface 750 provides a connection interface for external storage devices such as SD cards and U disks. The bus 760 can use any bus structure in a plurality of bus structures. For example, the bus structure includes but is not limited to an industry standard architecture (Industry Standard Architecture, ISA) bus, a micro channel architecture (Micro Channel Architecture, MCA) bus, and a peripheral component interconnect (Peripheral Component Interconnect, PCI) bus.

[0096] Some embodiments of the present disclosure provide a non-transitory computer-readable storage medium having stored thereon a computer program, which, when executed by a processor, implements the steps of the rate matching method in the embodiments.

[0097] Those skilled in the art should understand that the embodiments of the present disclosure can be provided as a method, a system, or a computer program product. Therefore, the present disclosure can take the form of an entirely hardware embodiment, an entirely software embodiment, or an embodiment combining software and hardware aspects. Moreover, the present disclosure can take the form of a computer program product implemented on one or more non-transitory computer-readable storage media (including but not limited to disk storage, CD-ROMs, optical storage devices, etc.) containing computer program code.

[0098] The present disclosure is described with reference to the flowcharts and / or block diagrams of the methods, devices (systems), and computer program products according to the embodiments of the present disclosure. It should be understood that each flow and / or block in the flowcharts and / or block diagrams, and the combination of flows and / or blocks in the flowcharts and / or block diagrams can be implemented by computer program instructions. These computer program instructions can be provided to a general-purpose computer, a special-purpose computer, an embedded processor, or other programmable data processing devices to produce a machine, so that the instructions executed by the computer or other programmable data processing devices produce a device that implements the functions specified in the flowcharts and / or block diagrams. Figure 1 The device for implementing the functions specified in one or more flows and / or blocks. Figure 1 The device for implementing the functions specified in one or more flows and / or blocks.

[0099] These computer program instructions can also be stored in a computer readable memory that can direct a computer or other programmable data processing apparatus to function in a particular manner, such that the instructions stored in the computer readable memory produce an article of manufacture including instructions which implement the flow Figure 1 The flow or flows and / or blocks Figure 1 The flow or flows and / or blocks

[0100] These computer program instructions can also be loaded onto a computer or other programmable data processing apparatus to cause a series of operational steps to be performed on the computer or other programmable apparatus to produce a computer implemented process such that the instructions that execute on the computer or other programmable apparatus provide steps for implementing the flow Figure 1 The flow or flows and / or blocks Figure 1 The flow or flows and / or blocks

[0101] The above description is merely illustrative of the application, and not restrictive. Since certain changes can be made in the above construction without departing from the scope of the application, it is intended that all such changes come within the scope of the application as claimed below.

Claims

1. A rate matching method under dynamic spectrum sharing, characterized in that, include: Configure dynamic spectrum sharing mode. In dynamic spectrum sharing mode, the first-mode PDCCH and the second-mode PDCCH are frequency-division multiplexed. Configure a virtual control resource set for first-mode PDCCH rate matching; the virtual control resource set does not contain a search space. Configure a real control resource set for second-mode PDCCH rate matching, the real control resource set containing one or more search spaces; Configure rate matching, and the rate matching configuration information carries the virtual control resource set and the real control resource set.

2. The method according to claim 1, characterized in that, Also includes: Configure a common control resource set to notify the remaining minimum system information.

3. The method according to any one of claims 1-2, characterized in that, The virtual control resource set and the real control resource set do not overlap.

4. The method according to any one of claims 1-2, characterized in that, The starting resource block of the virtual control resource set is the starting resource block of the first standard PDCCH within the second standard frequency band.

5. The method according to any one of claims 1-2, characterized in that, The bandwidth of the virtual control resource set is determined based on the first standard bandwidth, the number of resource blocks in the control resource set, and the conversion factor from the second standard subcarrier bandwidth to the first standard subcarrier bandwidth.

6. The method according to claim 5, characterized in that, The bandwidth of the virtual control resource set is the first standard bandwidth divided by the product of the number of resource blocks in the control resource set and the conversion factor, rounded up.

7. The method according to claim 1, characterized in that, The configured rate matching includes configuring rate matching in the Radio Resource Control (RRC) signaling, wherein the configuration information of the rate matching carries the virtual control resource set and the real control resource set.

8. The method according to any one of claims 1-2 and 7, characterized in that, The first standard includes Long Term Evolution (LTE), and the second standard includes New Radio (NR).

9. A rate matching method under dynamic spectrum sharing, characterized in that, include: Receive configuration information for dynamic spectrum sharing mode. In dynamic spectrum sharing mode, the first-mode PDCCH and the second-mode PDCCH are frequency-division multiplexed. Receive configuration information of a virtual control resource set, the virtual control resource set being used for first-mode PDCCH rate matching, the virtual control resource set not containing a search space; Receive configuration information of the real control resource set, which is used for second-mode PDCCH rate matching, and the real control resource set contains one or more search spaces; Receive rate matching configuration information, which carries the virtual control resource set and the real control resource set; Based on the virtual control resource set, a first-type PDCCH is determined; Based on the actual control resource set, the second standard PDCCH is determined.

10. The method according to claim 9, characterized in that, Also includes: Receive configuration information of a common control resource set, which is used to notify the remaining minimum system information; Based on the aforementioned public control resources, determine the remaining minimum system information.

11. The method according to any one of claims 9-10, characterized in that, The virtual control resource set and the real control resource set do not overlap.

12. The method according to any one of claims 9-10, characterized in that, The starting resource block of the virtual control resource set is the starting resource block of the first standard PDCCH within the second standard frequency band.

13. The method according to any one of claims 9-10, characterized in that, The bandwidth of the virtual control resource set is determined based on the first standard bandwidth, the number of resource blocks in the control resource set, and the conversion factor from the second standard subcarrier bandwidth to the first standard subcarrier bandwidth.

14. The method according to claim 13, characterized in that, The bandwidth of the virtual control resource set is the first standard bandwidth divided by the product of the number of resource blocks in the control resource set and the conversion factor, rounded up.

15. The method according to any one of claims 9-10, characterized in that, The first standard includes Long Term Evolution (LTE), and the second standard includes New Radio (NR).

16. A network device, comprising: Memory; And a processor coupled to the memory, the processor being configured to execute the rate matching method of any one of claims 1-8 based on instructions stored in the memory.

17. A terminal device, comprising: Memory; And a processor coupled to the memory, the processor being configured to execute the rate matching method of any one of claims 9-15 based on instructions stored in the memory.

18. A communication system, comprising: The network device of claim 16 and the terminal device of claim 17.

19. A non-transitory computer-readable storage medium having a computer program stored thereon, which, when executed by a processor, implements the steps of the rate matching method according to any one of claims 1-15.

Images