Resource mapping method and device, equipment, storage medium and program product

Abstract

The invention discloses a resource mapping method and device, equipment, a storage medium and a program product, and belongs to the technical field of wireless communication. The method comprises: receiving first configuration information (601), the first configuration information being used by the terminal device to determine a first resource unit for transmitting first information; and determining that the first resource unit is not used for resource mapping of a physical downlink control channel (PDCCH) (602). According to the scheme, the interference between the first information and the PDCCH can be reduced, so that the transmission effect of the communication system is improved.

Description

Method, apparatus, device, storage medium, and program product for resource mapping Technical Field

[0001] The present application relates to the field of wireless communication technology, and in particular to a method, apparatus, device, storage medium, and program product for resource mapping. Background Art

[0002] The Physical Downlink Control Channel (PDCCH) is used for resource scheduling and transmission of other control information.

[0003] In related technologies, when transmission resources of a PDCCH overlap with transmission resources of other signals, mutual interference between the PDCCH and other signals may occur, thereby affecting the transmission effect of the communication system.

[0004] Summary of the Invention

[0005] The present invention provides a method, apparatus, device, storage medium, and program product for resource mapping. The technical solution is as follows:

[0006] In one aspect, an embodiment of the present application provides a method for resource mapping, the method being performed by a terminal device, the method comprising:

[0007] receiving first configuration information, where the first configuration information is used by the terminal device to determine a first resource unit for transmitting first information;

[0008] It is determined that the first resource unit is not used for resource mapping of a physical downlink control channel PDCCH.

[0009] In one aspect, an embodiment of the present application provides a method for resource mapping, the method being performed by a network-side device, the method comprising:

[0010] First configuration information is sent to a terminal device, where the first configuration information is used by the terminal device to determine a first resource unit for transmitting first information, and to determine that the first resource unit is not used for resource mapping of a physical downlink control channel PDCCH.

[0011] In another aspect, an embodiment of the present application provides an apparatus for resource mapping, the apparatus comprising:

[0012] A receiving module, configured to receive first configuration information, where the first configuration information is used by a terminal device to determine a first resource unit for transmitting first information;

[0013] The determination module is used to determine that the first resource unit is not used for resource mapping of a physical downlink control channel PDCCH.

[0014] In another aspect, an embodiment of the present application provides an apparatus for resource mapping, the apparatus comprising:

[0015] A sending module is used to send first configuration information to a terminal device, where the first configuration information is used by the terminal device to determine a first resource unit for transmitting first information and to determine that the first resource unit is not used for resource mapping of a physical downlink control channel PDCCH.

[0016] On the other hand, an embodiment of the present application provides a terminal device, the terminal device including a processor, a memory, and a transceiver;

[0017] The transceiver is configured to receive first configuration information, where the first configuration information is used by the terminal device to determine a first resource unit for transmitting the first information;

[0018] The processor is configured to determine that the first resource unit is not used for resource mapping of a physical downlink control channel (PDCCH).

[0019] On the other hand, an embodiment of the present application provides a network side device, the network side device including a processor, a memory, and a transceiver;

[0020] The transceiver is used to send first configuration information to the terminal device, where the first configuration information is used by the terminal device to determine a first resource unit for transmitting first information and to determine that the first resource unit is not used for resource mapping of a physical downlink control channel PDCCH.

[0021] On the other hand, an embodiment of the present application further provides a computer-readable storage medium, in which a computer program is stored. The computer program is loaded and executed by a processor to implement the above-mentioned method for resource mapping.

[0022] In another aspect, a computer program product or computer program is provided, comprising computer instructions stored in a computer-readable storage medium. A processor of a terminal device or a network-side device reads the computer instructions from the computer-readable storage medium and executes the computer instructions, causing the terminal device or the network-side device to perform the above-described method for resource mapping.

[0023] On the other hand, a computer program is provided, which includes computer instructions. A processor of a terminal device or a network side device executes the computer instructions, so that the terminal device or the network side device executes the above-mentioned method for resource mapping.

[0024] On the other hand, a chip is provided, wherein the chip is configured to execute the above-mentioned method for resource mapping.

[0025] The technical solutions provided in the embodiments of the present application can bring the following beneficial effects:

[0026] The terminal device can receive first configuration information for determining a first resource unit for transmitting the first information, and based on the first configuration information, determine that the first resource unit is not used for resource mapping of PDCCH, thereby avoiding simultaneous transmission of the first information and PDCCH in the first resource unit, reducing or avoiding interference generated when the first information and PDCCH are transmitted on the same resource, thereby improving the transmission effect of the communication system. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the following briefly introduces the drawings required for use in the description of the embodiments. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without any creative work.

[0028] FIG1 is a schematic diagram of the architecture of a communication system provided by an embodiment of the present application;

[0029] FIG2 is a schematic diagram of a 1-port cell-specific reference signal (CRS) involved in this application;

[0030] FIG3 is a schematic diagram of frequency offset involved in this application;

[0031] FIG4 is a schematic diagram of a 2 / 4-port CRS involved in this application;

[0032] FIG5 is a schematic diagram of the 1 / 2 / 4 port CRS mapping involved in this application;

[0033] FIG6 is a flowchart of a resource mapping method provided by an embodiment of the present application;

[0034] FIG7 is a flowchart of a resource mapping method provided by an embodiment of the present application;

[0035] FIG8 is a schematic diagram of a wireless communication process provided by an embodiment of the present application;

[0036] FIG9 is a flowchart of a resource mapping method provided by an embodiment of the present application;

[0037] FIG10 is a schematic diagram of a CRS pattern list according to the embodiment shown in FIG9 ;

[0038] FIG11 is a schematic diagram of a CRS pattern list according to the embodiment shown in FIG9 ;

[0039] FIG12 is a schematic diagram of a CRS pattern list according to the embodiment shown in FIG9 ;

[0040] FIG13 is a schematic diagram of a CRS pattern list according to the embodiment shown in FIG9 ;

[0041] FIG14 is a block diagram of an apparatus for resource mapping provided by one embodiment of the present application;

[0042] FIG15 is a block diagram of an apparatus for resource mapping provided by one embodiment of the present application;

[0043] FIG16 is a schematic structural diagram of a device provided in one embodiment of the present application. DETAILED DESCRIPTION

[0044] In order to make the objectives, technical solutions and advantages of this application clearer, the implementation methods of this application will be further described in detail below with reference to the accompanying drawings.

[0045] The network architecture and business scenarios described in the embodiments of the present application are intended to more clearly illustrate the technical solutions of the embodiments of the present application, and do not constitute a limitation on the technical solutions provided by the embodiments of the present application. A person skilled in the art will appreciate that, with the evolution of the network architecture and the emergence of new business scenarios, the technical solutions provided by the embodiments of the present application are equally applicable to similar technical problems.

[0046] The 5th Generation (5G) mobile communication system, also known as the New Radio (NR) system, can include a terrestrial network (TN) and / or a non-terrestrial network (NTN). NTNs generally use satellite communications to provide communication services to terrestrial users. NTN systems currently include NR-NTN and IoT (Internet of Things)-NTN systems.

[0047] For example, Figure 1 is a schematic diagram of the architecture of a communication system provided by an exemplary embodiment of the present application. As shown in part (A) of Figure 1, communication system 100 may include network-side device 110, which may be a device that communicates with terminal device 120 (also referred to as a communication terminal or terminal). Network-side device 110 may provide communication coverage for a specific geographic area and may communicate with terminal device 120 located within the coverage area.

[0048] Part (A) in Figure 1 exemplarily shows a network-side device 110 and two terminal devices 120. In some embodiments of the present application, the communication system 100 may also include multiple network-side devices, and the coverage range of each network-side device may include other numbers of terminal devices, which is not limited in the embodiments of the present application.

[0049] For example, the architecture of the communication system shown in part (B) of FIG1 includes a terminal device 130 and a satellite 140, and wireless communication can be performed between the terminal device 130 and the satellite 140. The network formed between the terminal device 130 and the satellite 140 can also be referred to as an NTN. In the architecture of the communication system shown in part (B) of FIG1, the satellite 140 can have the function of a base station, and the terminal device 130 and the satellite 140 can communicate directly. In this system architecture, the satellite 140 can be referred to as a network side device. In some embodiments of the present application, the communication system may further include multiple satellites 140, and each satellite 140 may include other numbers of terminal devices within its coverage area, which is not limited in the embodiments of the present application.

[0050] For example, the architecture of the communication system shown in part (C) of FIG1 includes a terminal device 150, a satellite 160, and a base station 170. Wireless communication can be performed between the terminal device 150 and the satellite 160, and communication can be performed between the satellite 160 and the base station 170. The network formed between the terminal device 150, the satellite 160, and the base station 170 can be referred to as an NTN. In the architecture of the communication system shown in part (C) of FIG1, the satellite 160 may not have the function of a base station, and the communication between the terminal device 150 and the base station 170 needs to be transferred through the satellite 160. In this system architecture, the base station 170 can be referred to as a network side device. In some embodiments of the present application, the communication system may include multiple base stations 170, and the coverage range of each base station 170 (i.e., the signal coverage range of the corresponding satellite 160) may include other number of terminal devices, which is not limited in the embodiments of the present application.

[0051] CRS transmission can be 1-port, 2-port, or 4-port. Cell-specific reference signals are transmitted on one or more of antenna ports 0 to 3. Cell-specific reference signals are sent in every downlink subframe, on every RB within the entire downlink bandwidth. Cell-specific reference signals support a subcarrier spacing (SCS) of 15 kHz.

[0052] Please refer to Figure 2, which shows a schematic diagram of a 1-port CRS involved in this application. When CRS is transmitted using 1port, the CRS reference symbol is mapped to the resource element (RE) in the following manner: the reference symbol is inserted into the first and third-to-last OFDM symbols of each slot, and the two adjacent reference symbols in the same OFDM symbol are separated by 6 subcarriers in the frequency domain. At the same time, the reference symbol in the third-to-last OFDM symbol and the reference symbol in the first OFDM symbol are separated by 3 subcarriers in the frequency domain, as shown in Figure 1.

[0053] Please refer to Figure 3, which shows a schematic diagram of the frequency offset involved in this application. The starting position of the reference symbol within each RB is also related to the cell-specific frequency offset. LTE defines 6 frequency offsets, which are related to the cell's Physical Cell Identifier (PCI) and have a value of PCI mod 6 (the same applies to the cases of 2 and 4 cell-specific reference signals). This frequency offset can avoid time-frequency resource conflicts between cell-specific reference signals of up to 6 adjacent cells.

[0054] Please refer to Figure 4, which shows a schematic diagram of a 2 / 4-port CRS involved in this application. The case of expanding a 1-port CRS to a 2-port or 4-port is as follows:

[0055] 2-port CRS: The reference signal on the first antenna port (corresponding to port 0) is multiplexed with the reference signal on the second antenna port (corresponding to port 1) in the frequency domain, and the two are offset by 3 subcarriers in the frequency domain.

[0056] 4-port CRS: The reference signal on the third antenna port (corresponding to port 2) and the reference signal on the fourth antenna port (corresponding to port 3) are multiplexed in the frequency domain, offset by three subcarriers. The reference signals on the third and fourth antenna ports are transmitted in the second OFDM symbol of each slot, thus being multiplexed with the reference signals on the first and second antenna ports in the time domain. As can be seen, the reference symbol density on the third and fourth antenna ports is half that of the first and second antenna ports.

[0057] Please refer to Figure 5, which shows a schematic diagram of the 1 / 2 / 4 port CRS mapping involved in this application. Taking PCI mode 6=0 as an example, under normal cyclic prefix, the 1 / 2 / 4 port CRS mapping example is shown in Figure 5:

[0058] NR has the following restrictions on PDCCH monitoring:

[0059] 1) If at least one RE of a PDCCH candidate overlaps with at least one RE of an LTE CRS, the terminal is not required to monitor this PDCCH candidate.

[0060] 2) When the precoder granularity is configured as allContiguousRBs, the terminal does not expect any RE of a Control Resource Set (CORESET) to conflict with any RE of the LTE CRS.

[0061] Considering the long-term viability of LTE devices, the continued development of Dynamic Spectrum Sharing (DSS) is crucial. In DSS, NR PDCCH capacity is a bottleneck, especially for a 4-port CRS configuration, where NR PDCCH can only be monitored on a single OFDM symbol, which undoubtedly reduces PDCCH capacity.

[0062] Please refer to Figure 6, which shows a flow chart of a resource mapping method provided by an embodiment of the present application. The method can be executed by a terminal device, wherein the terminal device can be the terminal device 120, the terminal device 130, or the terminal device 150 in the network architecture shown in Figure 1. The method can include the following steps:

[0063] Step 601: Receive first configuration information, where the first configuration information is used by a terminal device to determine a first resource unit for transmitting first information.

[0064] In one embodiment, the above-mentioned "first resource unit for transmitting the first information" is not limited to the resource unit actually transmitting the first information. The first resource unit may also be a resource unit reserved for the first information, or the first resource unit may also be a resource unit overlapping with the resources for transmitting the first information on other cells, or the first resource unit may also be a resource unit overlapping with the resources reserved for the first information by other cells. The other cell refers to a cell different from the cell that receives the first configuration information. For example, the cell that receives the first configuration information is an NR cell, and the other cell may be an LTE cell.

[0065] The first resource unit may be a RE, a resource block (RB), or an orthogonal frequency division multiplexing (OFDM) symbol, etc. The embodiment of the present application does not limit the resource granularity of the first resource unit.

[0066] Step 602: Determine that the first resource unit is not used for resource mapping of a physical downlink control channel PDCCH.

[0067] Among them, the terminal device can determine, based on the above-mentioned first configuration information, that the first resource unit is not used for resource mapping of the PDCCH.

[0068] In one embodiment, the first information may be CRS.

[0069] Among them, taking the first resource unit as the first RE as an example, after receiving the first configuration information, when the network side device performs PDCCH resource mapping, it can map PDCCH-related information on other REs other than the first RE, including mapping PDCCH-related information on other REs that are in the same OFDM symbol or the same subcarrier as the first RE. Accordingly, the terminal device can detect PDCCH on other REs other than the first RE.

[0070] To sum up, according to the scheme shown in the embodiment of the present application, the terminal device can receive the first configuration information for determining the first resource unit for transmitting the first information, and based on the first configuration information, determine that the first resource unit is not used for resource mapping of PDCCH, thereby avoiding the simultaneous transmission of the first information and PDCCH in the first resource unit, reducing or avoiding the interference generated by the first information and PDCCH when the same resource is transmitted, thereby improving the transmission effect of the communication system.

[0071] In addition, in the scheme shown in the embodiment of the present application, the granularity of the first resource unit can be RE, and the RE that is not used for resource mapping of PDCCH is determined, thereby reducing the granularity of resources unavailable to PDCCH, increasing the resource capacity available to PDCCH, and further improving the transmission effect of PDCCH.

[0072] Please refer to Figure 7, which shows a flow chart of a resource mapping method provided by an embodiment of the present application. The method can be performed by a network-side device, wherein the network-side device can be the network-side device 110, satellite 140, or base station 170 in the network architecture shown in Figure 1. The method can include the following steps:

[0073] Step 701, sending first configuration information to the terminal device; the first configuration information is used by the terminal device to determine a first resource unit for transmitting first information, and to determine that the first resource unit is not used for resource mapping of a physical downlink control channel PDCCH.

[0074] To sum up, in the scheme shown in the embodiment of the present application, the network side device can send the first configuration information for determining the first resource unit for transmitting the first information to the terminal. The subsequent terminal device can determine, based on the first configuration information, that the first resource unit is not used for resource mapping of PDCCH, thereby avoiding the simultaneous transmission of the first information and PDCCH in the first resource unit, reducing or avoiding the interference generated by the transmission of the first information and PDCCH in the same resource, and thereby improving the transmission effect of the communication system.

[0075] Please refer to Figure 8, which shows a schematic diagram of a wireless communication process provided by an embodiment of the present application. As shown in Figure 8, a terminal device 801 and a network side device 802 communicate with each other via wireless signals.

[0076] Taking the example of network-side device 802 being a base station, in FIG8 , network-side device 802 first sends first configuration information to terminal device 801 (step S1). This first configuration information is used to determine a first resource unit for transmitting first information. Terminal device 801 determines resource mapping not used for PDCCH based on the first configuration information (step S2). Subsequently, network-side device 802 performs PDCCH resource mapping on resource units other than the first resource unit, and accordingly, terminal device 801 performs PDCCH detection on resource units other than the first resource unit.

[0077] Please refer to Figure 9, which shows a flow chart of a resource mapping method provided by an embodiment of the present application. The method can be interactively executed by a terminal device and a network-side device; wherein the terminal device and the network-side device can be the terminal device 120 and the network-side device 110 in the network architecture shown in Figure 1; or the terminal device and the network-side device can be the terminal device 130 and the satellite 140 in the network architecture shown in Figure 1; or the terminal device and the network-side device can be the terminal device 150 and the base station 170 in the network architecture shown in Figure 1. As shown in Figure 9, the method can include the following steps:

[0078] In step 901, a network-side device sends first configuration information to a terminal device; correspondingly, the terminal device receives the first configuration information sent by the network-side device.

[0079] The first configuration information is used by the terminal device to determine the first resource unit for transmitting the first information.

[0080] In one embodiment, the first information may be a CRS. For example, the first information may be a CRS in a long term evolution (LTE) system.

[0081] In a possible implementation manner, the first configuration information includes first transmission-related parameters, and the first transmission-related parameters are used to transmit the first information.

[0082] In one embodiment, the first configuration information may be used to configure first transmission-related parameters including a first CRS pattern list.

[0083] Among them, the above-mentioned first configuration information can be used to configure a single CRS pattern list for the terminal device.

[0084] In one embodiment, the first resource unit of the first information is determined based on the first transmission-related parameter. For example, when the first transmission-related parameter includes a single CRS pattern list, the RE corresponding to the CRS pattern list is not used for PDCCH resource mapping.

[0085] In one embodiment, the first configuration information further includes second transmission-related parameters, and the second transmission-related parameters are used to transmit the first information.

[0086] For example, the second transmission-related parameter may include a second CRS pattern list; that is, the above-mentioned first configuration information can be used to configure two CRS pattern lists for the terminal device.

[0087] In one embodiment, the above-mentioned first transmission-related parameters and / or second transmission-related parameters may also include at least one of the number of ports, frequency shift, carrier frequency, carrier bandwidth, and multicast / multicast single frequency network (MBSFN) subframe configuration.

[0088] In one embodiment, the first resource unit of the above-mentioned first information is determined based on the first transmission-related parameter; or, the first resource unit of the first information is determined based on the second transmission-related parameter; or, the first resource unit of the first information is determined based on the first transmission-related parameter and the second transmission-related parameter.

[0089] Optionally, the first configuration information may also be used to configure two or more transmission-related parameters for the terminal device, for example, to configure three or four CRS pattern lists for the terminal device. The embodiment of the present application does not limit the number of transmission-related parameters configured by the first configuration information.

[0090] In a possible implementation manner, the first configuration information is configuration information set according to an application scenario or a specified condition.

[0091] Among them, the above application scenarios may include various business scenarios (such as Internet of Vehicles scenarios, video transmission scenarios, audio and video call scenarios, etc.).

[0092] The above-mentioned specified conditions may include channel conditions and / or power conditions, etc. For example, the network-side device may configure the above-mentioned first configuration information corresponding to one or more channel conditions, and the terminal device may use the above-mentioned first configuration information when it detects that the current channel state meets the above-mentioned channel conditions. Alternatively, the network-side device may configure the above-mentioned first configuration information corresponding to one or more power conditions, and the terminal device may use the above-mentioned first configuration information when it detects that the current power meets the above-mentioned channel conditions.

[0093] For example, taking the transmission-related parameters including the CRS pattern list as an example, in another possible implementation scheme of the embodiment of the present application, the terminal device can configure a first configuration information, and the first configuration information can configure multiple groups of CRS pattern lists, each group of CRS pattern lists containing one or more CRS pattern lists.

[0094] For example, the first configuration information is used to configure {first CRS pattern list, second CRS pattern list}, and {first CRS pattern list, second CRS pattern list} can be effective / used in different scenarios / conditions.

[0095] In a possible implementation scheme of the embodiment of the present application, the terminal device can be configured with multiple first configuration information at the same time, and the multiple first configuration information are respectively used to configure different transmission-related parameters (such as CRS pattern lists).

[0096] For example, the terminal device can be configured with two first configuration information at the same time, each first configuration information is used to configure a first CRS pattern list and a second CRS pattern list, and the first CRS pattern lists configured by the two first configuration information can be the same or different. Similarly, the second CRS pattern lists configured by the two first configuration information can be the same or different.

[0097] In an embodiment of the present application, the transmission-related parameters configured by the above-mentioned first configuration information may act on the PDCCH, or the transmission-related parameters configured by the above-mentioned first configuration information may act on the PDCCH and the PDSCH at the same time.

[0098] In one possible implementation, the first configuration information is the same as or different from the second configuration information;

[0099] The second configuration information is used by the terminal device to determine the second resource unit; wherein the second resource unit is not used for resource mapping of the physical downlink shared channel PDSCH.

[0100] In an embodiment of the present application, transmission-related parameters corresponding to the PDSCH may be configured by another second configuration information in addition to the first configuration information, and the two configuration information may be the same configuration information or different configuration information.

[0101] Step 902: The terminal device determines, based on the first configuration information, that the first resource unit is not used for resource mapping of the PDCCH.

[0102] In one embodiment, the above-mentioned PDCCH may be a PDCCH in an NR system.

[0103] For example, taking the first resource unit as the first RE, before performing PDCCH detection, the terminal device can first determine the first RE that is not used for PDCCH resource mapping based on the first configuration information, so that it can accurately receive the information in the PDCCH subsequently.

[0104] Among them, when the first configuration information is used to configure the first CRS pattern list, the terminal device can determine the first resource unit according to the first CRS pattern list.

[0105] For example, when the first configuration information is used to configure a single transmission-related parameter (such as CRS pattern list 1), the RE corresponding to CRS pattern list 1 is used for LTE CRS and is not available during NR PDCCH resource mapping.

[0106] In one embodiment, the first resource unit of the first information is determined based on the first transmission-related parameter; or, the first resource unit of the first information is determined based on the second transmission-related parameter; or, the first resource unit of the first information is determined based on the first transmission-related parameter and the second transmission-related parameter.

[0107] In one possible implementation, taking the case where the transmission-related parameters include a CRS pattern list and the first resource unit is a first RE as an example, when the first configuration information is used to configure the first CRS pattern list and the second CRS pattern list, the terminal device may determine the first RE based on the first CRS pattern list; or, determine the first RE based on the second CRS pattern list; or, determine the first RE based on the first CRS pattern list and the second CRS pattern list.

[0108] In one possible implementation, the network side device may also send a first indication message (such as a first instruction) to the terminal device, or correspondingly, the terminal device determines the first resource unit based on the reception of the first instruction and the first configuration information.

[0109] In an embodiment of the present application, the above-mentioned first instruction can be used to indicate how to use the first transmission-related parameter and the second transmission-related parameter.

[0110] In one embodiment, when the terminal device determines that the received first indication information indicates a first value, or determines that the first indication information is not received, the terminal device determines the first resource unit of the first information based on the first transmission-related parameter.

[0111] In one embodiment, when the terminal device determines that the received first indication information indicates the second value, or determines that the first indication information is not received, the terminal device determines the first resource unit of the first information based on the second transmission-related parameter.

[0112] In one embodiment, when the terminal device determines that the received first indication information indicates a third value, or determines that the first indication information is not received, the terminal device determines the first resource unit of the first information based on the first transmission-related parameter and the second transmission-related parameter.

[0113] Taking the transmission-related parameters including the CRS pattern list and the first resource unit being the first RE as an example, when the terminal device determines that the received first indication information indicates the first value, or when the terminal device determines that the first indication information is not received, the first RE is determined according to the first CRS pattern list; or,

[0114] When the terminal device determines that the received first indication information indicates the second value, or when the terminal device determines that the first indication information is not received, determine the first RE according to the second CRS pattern list; or

[0115] When the terminal device determines that the received first indication information indicates the third value, or when the terminal device determines that the first indication information is not received, the first RE is determined according to the first CRS pattern list and the second CRS pattern list.

[0116] That is, in one embodiment, the terminal device may decide which CRS pattern list to use to determine the first resource unit based on whether the first indication information is received and / or the value of the received first indication information.

[0117] In one embodiment, the terminal device is configured with a first CORESET resource pool and a second CORESET resource pool.

[0118] For example, when the terminal device is configured with two CORESET resource pools, the first configuration information may configure the first transmission-related parameter and the second transmission-related parameter to the terminal device.

[0119] For example, when the terminal device is configured with two control resource set COREST pool indexes, the first configuration information is used to configure the first CRS pattern list and the second CRS pattern list.

[0120] In an embodiment of the present application, when the terminal device is configured with two control resource set COREST pools (such as coresetPoolIndex'0' and coresetPoolIndex'1'), the network side device can configure two CRS pattern lists for the terminal device through the first configuration information.

[0121] The above CORESET resource pool can be indicated by the COREST pool index information element (coresetPoolIndex Information Element, coresetPoolIndex IE).

[0122] In one embodiment, when the PDCCH corresponds to the first CORESET resource pool, the first resource unit of the first information is determined based on the first transmission-related parameter; or,

[0123] In a case where the PDCCH corresponds to the second CORESET resource pool, the first resource unit of the first information is determined based on the second transmission-related parameter.

[0124] In an embodiment of the present application, when the terminal device is configured with two CORESET resource pools, for the PDCCH corresponding to the first CORESET resource pool, the terminal device determines, based on the first transmission-related parameters, a first resource unit that is not used for resource mapping of the PDCCH corresponding to the first CORESET resource pool; for the PDCCH corresponding to the second CORESET resource pool, the terminal device determines, based on the second transmission-related parameters, a first resource unit that is not used for resource mapping of the PDCCH corresponding to the second CORESET resource pool.

[0125] In one embodiment, the terminal device may further determine that the second indication information is received; or determine that the received second indication information indicates a fourth value;

[0126] The second information is used to indicate how the first transmission-related parameters and the second transmission-related parameters are used when the terminal device is configured with the first CORESET resource pool and the second CORESET resource pool.

[0127] In one embodiment, when the terminal device determines that the second indication information is not received, or determines that the received second indication information indicates the fifth value, the first resource unit of the first information can be determined based on the first transmission-related parameter and the second transmission-related parameter.

[0128] In one possible implementation,

[0129] When the terminal device determines that the second indication information is received, or when the terminal device determines that the received second indication information indicates a fourth value, the first resource unit can be determined based on the first transmission-related parameter, and the first resource unit is not used for resource mapping of the PDCCH corresponding to the first COREST pool index; and / or, when the terminal device determines that the second indication information is received, or when the terminal device determines that the received second indication information indicates a fourth value, the first resource unit can be determined based on the second transmission-related parameter, and the first resource unit is not used for resource mapping of the PDCCH corresponding to the second COREST pool index.

[0130] In one possible implementation, when the terminal device determines that the received second indication information indicates the fifth value, or when the terminal device determines that the second indication information is not received, the first resource unit can be determined based on the first transmission-related parameters and the second transmission-related parameters.

[0131] In one embodiment, the first resource unit is not used for PDCCH resource mapping corresponding to the first CORESET pool and the second CORESET pool.

[0132] For example, taking the case where the transmission-related parameters include a CRS pattern list and the first resource unit is the first RE, in the above possible implementation method, the terminal device can decide which CRS pattern list to use to determine the first RE of the PDCCH corresponding to which COREST pool index based on whether the second indication information is received and / or the value indicated by the received second indication information.

[0133] In a possible implementation manner, the second indication information is further used to instruct the terminal device to determine a manner of the second RE according to the second configuration information;

[0134] The second RE is not used for resource mapping of the physical downlink shared channel PDSCH.

[0135] In the embodiment of the present application, the above-mentioned second indication information may act on both the physical downlink shared channel (PDSCH) and the PDCCH, or may act only on the PDCCH.

[0136] Step 903: The network-side device performs resource mapping of the PDCCH on resource units other than the first resource unit.

[0137] In one embodiment, other resource units among all resource units corresponding to the OFDM symbol where the first resource unit is located are also not used for resource mapping of the PDCCH.

[0138] The above-mentioned other resource units may refer to other resource units except the first resource unit.

[0139] For example, when the first resource unit is the first RE or the first RB, in the OFDM symbol where the first resource unit is located, other resources except the first RE / first RB are not used for resource mapping of the PDCCH.

[0140] In one embodiment, the first resource unit is also not used for resource mapping of the PDSCH.

[0141] For example, taking the first information as CRS, PDSCH and PDCCH can share CRS pattern configuration information.

[0142] In a possible implementation manner, when performing resource mapping on the PDCCH, the network-side device maps the PDCCH to other OFDM symbols except the OFDM symbol where the first resource unit is located.

[0143] For example, taking the first information being CRS and the first resource unit being the first RE as an example, in an embodiment of the present application, the PDCCH is not mapped on an NR symbol that overlaps with the OFDM symbol to which the LTE CRS RE belongs.

[0144] In one embodiment, the first resource unit of the first information is not used for resource mapping of a physical downlink control channel PDCCH, including one of the following situations:

[0145] The first resource element is not used for mapping the PDCCH and the demodulation reference signal (DMRS) of the PDCCH;

[0146] The first resource unit is only not used for mapping the PDCCH; and

[0147] The first resource unit is not used only for mapping the DMRS of the PDCCH.

[0148] Among them, one or more of the above-mentioned first indication information and second indication information can be configured separately, or the same indication information can be reused.

[0149] The first indication information and the second indication information may be radio resource control (RRC) signaling.

[0150] When NR PDCCH is resource mapped, neither PDCCH DMRS nor PDCCH information is mapped on the resource element, so that both DMRS and information symbols can avoid interference with the first information (such as LTE CRS).

[0151] When NR PDCCH is mapped in resources, PDCCH information is not mapped to the resource unit (in this case, the PDCCH information symbol can avoid interference from the first information), or, PDCCH DMRS is not mapped to the resource unit (in this case, DMRS can avoid interference from the first information, which is beneficial to channel estimation and PDCCH decoding performance. At the same time, the resources used by the information symbol are not affected by the first information, which can reduce the amount of discarded information).

[0152] In a possible implementation, the network-side device performs rate matching or puncturing on the PDCCH information when performing resource mapping on the PDCCH.

[0153] In an embodiment of the present application, if a first resource unit is unavailable, when mapping PDCCH resources, the network side device performs rate matching or puncturing operations on the PDCCH information so that the available resource units are sufficient to carry the PDCCH information to be transmitted.

[0154] In the embodiment of the present application, the network side device may also determine the first resource unit according to the first configuration information before performing resource mapping of the PDCCH. The process of determining the first resource unit can refer to the description of the terminal device side in step 902 and will not be repeated here.

[0155] Step 904: The terminal device performs PDCCH detection on other REs outside the first resource unit.

[0156] Among them, the above-mentioned solutions of the embodiments of the present application, as well as one or more of the various possible implementation methods of the above-mentioned solutions, can be used in combination. Taking the first information as LTE CRS, the PDCCH as NR PDCCH, the transmission-related parameters including the CRS pattern list, and the resource unit as RE as an example, the following only exemplifies three possible combination solutions of the embodiments of the present application, but the embodiments of the present application are not limited to the following three solutions.

[0157] Option 1

[0158] The network side device configures CRS pattern list 1 for the terminal device through the first configuration information. The RE corresponding to the CRS pattern list 1 is used for LTE CRS and is not available during NR PDCCH resource mapping.

[0159] For example, please refer to Figure 10, which shows a schematic diagram of a CRS pattern list involved in an embodiment of the present application. As shown in Figure 10, the base station configures lte-CRS-PatternList 1 for the UE, and its corresponding CRS REs are subcarriers 0 and 6 of the first symbol in each RB, and subcarriers 3 and 9 of the fourth symbol as shown in Figure 10.

[0160] If the UE is configured or the protocol stipulates that neither the NR PDCCH DMRS nor the PDCCH information can be mapped on the CRS RE, the NR PDCCH and its DMRS are mapped on the unfilled REs in Figure 10.

[0161] If the UE configuration or protocol stipulates that only NR PDCCH DMRS cannot be mapped on CRS RE, then DMRS is mapped on the unfilled RE in Figure 10, and PDCCH information can be mapped on all REs in the figure.

[0162] If the UE configuration or protocol stipulates that only NR PDCCH information cannot be mapped on CRS RE, then the PDCCH information is mapped on the unfilled RE in the figure, and PDCCH DMRS can be mapped on all REs in the figure.

[0163] Option 2

[0164] The network side device configures CRS pattern list 2 and CRS pattern list 3 for the terminal device through the first configuration information.

[0165] In this solution, when the UE is configured with two different coresetPoolIndex, it will configure CRS pattern list 2 and CRS pattern list 3 at the same time.

[0166] If the UE is configured with signaling 1, signaling 1 can be used to indicate how to use two CRS pattern lists when the UE is configured with two different coresetPoolIndex. Signaling 1 can act on both PDSCH and PDCCH, or only on PDCCH.

[0167] If the UE is configured with signaling 1, or signaling 1 indicates the first value, or signaling 1 is not configured, when using the PDCCH associated with coresetPoolIndex'0' for resource mapping, the CRS RE corresponding to CRS pattern list 2 is unavailable, and when using the PDCCH associated with coresetPoolIndex'1' for resource mapping, the CRS RE corresponding to CRS pattern list 3 is unavailable. Among them, the PDCCH associated with coresetPoolIndex'0' mentioned above refers to the PDCCH resource, so the coresetPoolIndex of the CORESET is configured as '0'. The same applies to the PDCCH associated with coresetPoolIndex'1'.

[0168] If the UE is configured with signaling 1, or is not configured with signaling 1, or signaling 1 indicates the second value, the CRS REs corresponding to CRS pattern list 2 and CRS pattern list 3 are unavailable during PDCCH resource mapping.

[0169] For example, please refer to Figure 11, which shows a schematic diagram of the CRS pattern list involved in an embodiment of the present application. As shown in Figure 11, it is assumed that the base station configures 2 different coresetPoolIndex for the UE, and configures lte-CRS-PatternList 1 and lte-CRS-PatternList 2 at the same time. The CRS RE corresponding to lte-CRS-PatternList 1 is a single port, with 0 and 6 subcarriers of the first symbol in each RB and 3 and 9 subcarriers of the fourth symbol. Correspondingly, the CRS RE corresponding to lte-CRS-PatternList2 is 2-port, and the 0, 3, 6, and 9 subcarriers of the 1st and 4th symbols in each RB are shown in Figure 11.

[0170] If configured by the UE or specified by the protocol, neither NR PDCCH DMRS nor PDCCH information may be mapped to CRS REs:

[0171] As shown in Figure 11, if signaling 1 (for example, crs-RateMatch-PerCoresetPoolIndex) is configured for the UE, or signaling 1 is configured for the UE and takes a value of 1, then for the PDCCH associated with coresetPoolIndex'0', in the lte-CRS-PatternList 1 pattern, unfilled REs can be used to map the PDCCH. For the PDCCH associated with coresetPoolIndex'1', in the lte-CRS-PatternList2 pattern, unfilled REs can be used to map the PDCCH.

[0172] If signaling 1 (crs-RateMatch-PerCoresetPoolIndex) is not configured for the UE, or signaling 1 is configured for the UE and its value is 0, then for NR PDCCH, only unfilled REs in the patterns of lte-CRS-PatternList1 and lte-CRS-PatternList2 can be used for PDCCH resource mapping.

[0173] If the UE is configured or the protocol stipulates that only the NR PDCCH DMRS cannot be mapped on the CRS RE, or only the NR PDCCH information cannot be mapped on the CRS RE, the mapping rules are similar.

[0174] Option 3

[0175] The network side device configures CRS pattern list 4 and CRS pattern list 5 for the terminal device through the first configuration information.

[0176] Optionally, the CRS RE corresponding to CRS pattern list 4 is not available during PDCCH resource mapping;

[0177] Alternatively, the CRS RE corresponding to CRS pattern list 5 is not available when mapping PDCCH resources;

[0178] Alternatively, the CRS REs corresponding to CRS pattern list 4 and CRS pattern list 5 are both unavailable during PDCCH resource mapping.

[0179] That is, which pattern list or lists of CRS pattern list 4 and CRS pattern list 5 the terminal device uses to determine unavailable REs for PDCCH resource mapping may be specified by the protocol. This solution can be applied when one or two coresetPoolIndex are configured.

[0180] Optionally, if the UE is configured with signaling 2, the signaling 2 is used to instruct the UE to use CRS pattern list 4 and / or CRS pattern list 5 to determine unavailable REs for PDCCH resource mapping, for example:

[0181] If signaling 2 indicates the first value, or signaling 2 is not configured, the CRS RE corresponding to CRS pattern list 4 is unavailable during PDCCH resource mapping;

[0182] If signaling 2 indicates the second value, or signaling 2 is not configured, the CRS RE corresponding to CRS pattern list 5 is unavailable during PDCCH resource mapping;

[0183] If signaling 2 indicates the third value, or signaling 2 is not configured, the CRS REs corresponding to CRS pattern list 4 and CRS pattern list 5 are unavailable during PDCCH resource mapping.

[0184] Optionally, if the UE is configured with two different coresetPoolIndex and signaling 3 is configured at the same time, signaling 3 is used to indicate how to use the two CRS pattern lists when the UE is configured with two different coresetPoolIndex. Signaling 3 can act on both PDSCH and PDCCH, or only on PDCCH. The optional solution can be as follows:

[0185] If signaling 3 is configured, or signaling 3 indicates the first value, when using the PDCCH associated with coresetPoolIndex'0' for resource mapping, the CRS RE corresponding to CRS pattern list 4 is unavailable, and when using the PDCCH associated with coresetPoolIndex'1' for resource mapping, the CRS RE corresponding to CRS pattern list 5 is unavailable;

[0186] If signaling 3 is not configured, or signaling 3 indicates the second value, the CRS REs corresponding to CRS pattern list 4 and CRS pattern list 5 are unavailable during PDCCH resource mapping.

[0187] Optionally, in solution 3, PDCCH cannot be mapped to NR symbols that overlap with OFDM symbols belonging to LTE CRS REs. In other words, when two CRS pattern lists are configured, NR PDCCH and LTE CRS shared resource transmission is not supported.

[0188] Optionally, in solution 3, RE unavailable means that during resource mapping of the NR PDCCH, neither the PDCCH DMRS nor the PDCCH information is mapped to the RE, or only the PDCCH information is not mapped to the RE, or only the PDCCH DMRS is not mapped to the RE. The meaning of RE unavailable can be determined by signaling 4 configuration or by agreement.

[0189] Optionally, the above signaling 1, signaling 2, signaling 3, and signaling 4 can be configured separately or multiplexed in the same signaling. Optionally, the above signaling can be RRC signaling.

[0190] For example, please refer to Figure 12, which shows a schematic diagram of the CRS pattern list involved in an embodiment of the present application. As shown in Figure 12, it is assumed that the base station configures lte-CRS-PatternList 3 and lte-CRS-PatternList 4 for the UE, and the CRS RE corresponding to lte-CRS-PatternList 3 is a single port, with 0 and 6 subcarriers of the first symbol in each RB, and 3 and 9 subcarriers of the fourth symbol. Correspondingly, the CRS RE corresponding to lte-CRS-PatternList 4 is 2-port, and the 0, 3, 6, and 9 subcarriers of the 1st and 4th symbols in each RB are shown in Figure 12.

[0191] Case 1:

[0192] Use lte-CRS-PatternList 3 or lte-CRS-PatternList 4, or lte-CRS-PatternList 3 + lte-CRS-PatternList 4 to perform resource mapping for NR PDCCH according to signaling 2.

[0193] According to the protocol agreement, lte-CRS-PatternList 3 or lte-CRS-PatternList 4, or lte-CRS-PatternList 3 + lte-CRS-PatternList 4 are used for resource mapping of NR PDCCH.

[0194] Case 2: If the UE is configured with only one coresetPoolIndex:

[0195] Use lte-CRS-PatternList 3 or lte-CRS-PatternList 4, or lte-CRS-PatternList 3 + lte-CRS-PatternList 4 to perform resource mapping for NR PDCCH according to signaling 2.

[0196] Alternatively, lte-CRS-PatternList 3 or lte-CRS-PatternList 4, or lte-CRS-PatternList 3 + lte-CRS-PatternList 4 may be used to perform resource mapping on the NR PDCCH according to the protocol agreement.

[0197] Case 3: If the UE is configured with two different coresetPoolIndex:

[0198] Use lte-CRS-PatternList 3 or lte-CRS-PatternList 4, or lte-CRS-PatternList 3 + lte-CRS-PatternList 4 to perform resource mapping for NR PDCCH according to signaling 3.

[0199] Alternatively, lte-CRS-PatternList 3 or lte-CRS-PatternList 4, or lte-CRS-PatternList 3 + lte-CRS-PatternList 4 are used to perform resource mapping on the NR PDCCH according to the protocol.

[0200] Alternatively, if signaling 3 (crs-RateMatch-PerCoresetPoolIndex) is configured for the UE, or takes a value of 1, then for the PDCCH associated with coresetPoolIndex'0', unfilled REs in the lte-CRS-PatternList 3 pattern can be used to map the PDCCH. For the PDCCH associated with coresetPoolIndex'1', unfilled REs in the lte-CRS-PatternList 4 pattern can be used to map the PDCCH. If signaling 3 is not configured for the UE, or takes a value of 0, then for NR PDCCH, only unfilled REs in the lte-CRS-PatternList 3 and lte-CRS-PatternList 4 patterns can be used for PDCCH resource mapping.

[0201] In addition, please refer to Figure 13, which shows a schematic diagram of the CRS pattern list involved in an embodiment of the present application. As shown in Figure 13, it is assumed that the base station configures 2 different coresetPoolIndex for the UE, and configures lte-CRS-PatternList 1 and lte-CRS-PatternList 2 at the same time. The CRS RE corresponding to lte-CRS-PatternList 1 is a single port, and the 0 and 6 subcarriers of the first symbol in each RB, and the 3 and 9 subcarriers of the fourth symbol, correspondingly, the CRS RE corresponding to lte-CRS-PatternList 2 is 2-port, and the 0, 3, 6, and 9 subcarriers of the 1st and 4th symbols in each RB are shown in Figure 13.

[0202] In Figure 13, the time domain resources occupied by the NR PDCCH do not overlap with the time domain resources occupied by the LTE CRS, that is, the NR PDCCH is transmitted in PFDM symbols 1 to 4 and 5 to 6.

[0203] To sum up, in the scheme shown in the embodiment of the present application, the network side device can send the first configuration information for determining the first resource unit for transmitting the first information to the terminal. The subsequent terminal device can determine, based on the first configuration information, that the first resource unit is not used for resource mapping of PDCCH, thereby avoiding the simultaneous transmission of the first information and PDCCH in the first resource unit, reducing or avoiding the interference generated by the transmission of the first information and PDCCH in the same resource, and thereby improving the transmission effect of the communication system.

[0204] In addition, in the scheme shown in the embodiment of the present application, the granularity of the first resource unit can be a resource granularity smaller than the OFDM symbol, such as RE or RB, that is, the RE that is not used for resource mapping of PDCCH is determined in units of RE / RB, thereby reducing the resource granularity that is unavailable to PDCCH, increasing the resource capacity available to PDCCH, and thereby improving the transmission effect of PDCCH.

[0205] Please refer to Figure 14, which shows a block diagram of an apparatus for resource mapping provided by an embodiment of the present application. The apparatus can be used to execute all or part of the steps performed by the terminal device in the above method embodiment. As shown in Figure 14, the apparatus may include:

[0206] The receiving module 1401 is configured to receive first configuration information, where the first configuration information is used by a terminal device to determine a first resource unit for transmitting first information;

[0207] The determination module 1402 is configured to determine that the first resource unit is not used for resource mapping of a physical downlink control channel PDCCH.

[0208] In one embodiment, the first configuration information includes first transmission-related parameters, and the first transmission-related parameters are used to transmit the first information.

[0209] In one embodiment, the first resource unit of the first information is determined based on the first transmission-related parameter.

[0210] In one embodiment, the first configuration information further includes second transmission-related parameters, and the second transmission-related parameters are used to transmit the first information.

[0211] In one embodiment, the first resource unit of the first information is determined based on the first transmission-related parameter; or

[0212] The first resource unit of the first information is determined based on the second transmission-related parameter; or,

[0213] The first resource unit of the first information is determined based on the first transmission-related parameter and the second transmission-related parameter.

[0214] In one embodiment, the first resource unit of the first information is determined based on the first transmission-related parameter, and the determination module is further used to determine that the received first indication information indicates a first value; or determine that the first indication information is not received.

[0215] In one embodiment, the first resource unit of the first information is determined based on the second transmission-related parameter, and the determination module is further used to determine that the received first indication information indicates a second value; or to determine that the first indication information is not received.

[0216] In one embodiment, the first resource unit of the first information is determined based on the first transmission-related parameter and the second transmission-related parameter, and the determination module is further used to determine that the received first indication information indicates a third value; or to determine that the first indication information is not received.

[0217] In one embodiment, the terminal device is configured with a first CORESET resource pool and a second CORESET resource pool.

[0218] In one embodiment, when the PDCCH corresponds to the first CORESET resource pool, the first resource unit of the first information is determined based on the first transmission-related parameter; or

[0219] In a case where the PDCCH corresponds to the second CORESET resource pool, the first resource unit of the first information is determined based on the second transmission-related parameter.

[0220] In one embodiment, the determining module is further configured to determine that second indication information is received; or determine that the received second indication information indicates a fourth value;

[0221] The second information is used to indicate how the first transmission-related parameter and the second transmission-related parameter are used when the terminal device is configured with the first CORESET resource pool and the second CORESET resource pool.

[0222] In one embodiment, the first resource unit of the first information is determined based on the first transmission-related parameter and the second transmission-related parameter, and the determination module is further used to determine that the second indication information is not received; or to determine that the received second indication information indicates a fifth value.

[0223] In one embodiment, the first resource unit of the first information is not used for resource mapping of a physical downlink control channel PDCCH, which includes one of the following situations:

[0224] The first resource element is not used for mapping the PDCCH and a demodulation reference signal DMRS of the PDCCH;

[0225] The first resource unit is not used only for mapping the PDCCH; and

[0226] The first resource unit is not used only for mapping the DMRS of the PDCCH.

[0227] In one embodiment, other resource units among all resource units corresponding to the symbol where the first resource unit is located are also not used for resource mapping of the PDCCH.

[0228] In an embodiment, the first resource unit is also not used for resource mapping of PDSCH.

[0229] In one embodiment, the first information is a cell-specific reference signal CRS in a long term evolution (LTE) system, and the PDCCH is a PDCCH in a new radio (NR) system.

[0230] Please refer to Figure 15, which shows a block diagram of an apparatus for resource mapping provided by an embodiment of the present application. The apparatus can be used to execute all or part of the steps performed by the network-side device in the above method embodiment. As shown in Figure 15, the apparatus may include:

[0231] The sending module 1501 is used to send first configuration information to the terminal device, where the first configuration information is used by the terminal device to determine a first resource unit for transmitting first information and to determine that the first resource unit is not used for resource mapping of a physical downlink control channel PDCCH.

[0232] In one embodiment, the first configuration information includes first transmission-related parameters, and the first transmission-related parameters are used to transmit the first information.

[0233] In one embodiment, the first resource unit of the first information is determined based on the first transmission-related parameter.

[0234] In one embodiment, the first configuration information further includes second transmission-related parameters, and the second transmission-related parameters are used to transmit the first information.

[0235] In one embodiment, the first resource unit of the first information is determined based on the first transmission-related parameter; or

[0236] The first resource unit of the first information is determined based on the second transmission-related parameter; or,

[0237] The first resource unit of the first information is determined based on the first transmission-related parameter and the second transmission-related parameter.

[0238] In one embodiment, the first resource unit of the first information is determined based on the first transmission-related parameter, and the apparatus further includes:

[0239] Sending first indication information indicating a first value to the terminal device; or,

[0240] Determine not to send the first indication information to the terminal device.

[0241] In one embodiment, the first resource unit of the first information is determined based on the second transmission-related parameter, and the apparatus further includes:

[0242] Sending the first indication information indicating the second value to the terminal device; or,

[0243] Determine not to send the first indication information to the terminal device.

[0244] In one embodiment, the first resource unit of the first information is determined based on the first transmission-related parameter and the second transmission-related parameter, and the apparatus further includes:

[0245] Sending the first indication information indicating the third value to the terminal device; or,

[0246] Determine not to send the first indication information to the terminal device.

[0247] In one embodiment, the apparatus further comprises:

[0248] A configuration module is configured to configure a first CORESET resource pool and a second CORESET resource pool for the terminal device.

[0249] In one embodiment, when the PDCCH corresponds to the first CORESET resource pool, the first resource unit of the first information is determined based on the first transmission-related parameter; or

[0250] In a case where the PDCCH corresponds to the second CORESET resource pool, the first resource unit of the first information is determined based on the second transmission-related parameter.

[0251] In one embodiment, the sending module is further configured to send second indication information to the terminal device; or send the second indication information indicating a fourth value to the terminal device;

[0252] The second information is used to indicate how the first transmission-related parameter and the second transmission-related parameter are used when the terminal device is configured with the first CORESET resource pool and the second CORESET resource pool.

[0253] In one embodiment, the first resource unit of the first information is determined based on the first transmission-related parameter and the second transmission-related parameter, and the sending module is also used to determine whether to send the second indication information to the terminal device, or to send the second indication information indicating the fifth value to the terminal device.

[0254] In one embodiment, the first resource unit of the first information is not used for resource mapping of a physical downlink control channel PDCCH, which includes one of the following situations:

[0255] The first resource element is not used for mapping the PDCCH and a demodulation reference signal DMRS of the PDCCH;

[0256] The first resource unit is not used only for mapping the PDCCH; and

[0257] The first resource unit is not used only for mapping the DMRS of the PDCCH.

[0258] In one embodiment, other resource units among all resource units corresponding to the symbol where the first resource unit is located are also not used for resource mapping of the PDCCH.

[0259] In an embodiment, the first resource unit is also not used for resource mapping of PDSCH.

[0260] In one embodiment, the first information is a cell-specific reference signal CRS in a long term evolution (LTE) system, and the PDCCH is a PDCCH in a new radio (NR) system.

[0261] Please refer to FIG16 , which shows a schematic diagram of the structure of a device 1600 provided in one embodiment of the present application. The device 1600 may include: a processor 1601 , a receiver 1602 , a transmitter 1603 , a memory 1604 , and a bus 1605 .

[0262] The processor 1601 includes one or more processing cores. The processor 1601 executes various functional applications and information processing by running software programs and modules.

[0263] The receiver 1602 and the transmitter 1603 may be implemented as a communication component, which may be a communication chip, which may also be called a transceiver.

[0264] The memory 1604 is connected to the processor 1601 via a bus 1605 .

[0265] The memory 1604 may be used to store a computer program, and the processor 1601 may be used to execute the computer program to implement the various steps performed by the terminal in the above method embodiment.

[0266] In addition, memory 1604 can be implemented by any type of volatile or non-volatile storage device or a combination thereof, including but not limited to: magnetic disk or optical disk, electrically erasable programmable read-only memory, erasable programmable read-only memory, static random access memory, read-only memory, magnetic memory, flash memory, and programmable read-only memory.

[0267] The above-mentioned device can be implemented as a terminal device or a network-side device in the above-mentioned various method embodiments.

[0268] In an exemplary embodiment, the device includes a processor, a memory, and a transceiver (the transceiver may include a receiver and a transmitter, the receiver is used to receive information, and the transmitter is used to send information);

[0269] When the above device is implemented as the terminal device in each of the above method embodiments,

[0270] The transceiver receives first configuration information, where the first configuration information is used by the terminal device to determine a first resource unit for transmitting first information;

[0271] The processor is configured to determine that the first resource unit is not used for resource mapping of a physical downlink control channel (PDCCH).

[0272] Among them, the steps executed by the above-mentioned transceiver and processor can refer to all or part of the steps executed by the terminal device in the embodiments shown in Figures 6, 7 or 9 above, and will not be repeated here.

[0273] When the above-mentioned device is implemented as a network-side device in the above-mentioned method embodiments, the transceiver is used to send first configuration information to the terminal device, and the first configuration information is used by the terminal device to determine a first resource unit for transmitting the first information, and to determine that the first resource unit is not used for resource mapping of the physical downlink control channel PDCCH.

[0274] Among them, the steps performed by the above-mentioned transceiver and processor can refer to all or part of the steps performed by the network side device in the embodiments shown in Figures 6, 7 or 9 above, and will not be repeated here.

[0275] An embodiment of the present application also provides a computer-readable storage medium, in which a computer program is stored. The computer program is loaded and executed by a processor to implement the various steps performed by the terminal device or the network side device in the method shown in Figures 6, 7 or 9 above.

[0276] The present application also provides a computer program product or computer program, which includes computer instructions stored in a computer-readable storage medium. A processor of a terminal device or a network-side device reads the computer instructions from the computer-readable storage medium, and the processor executes the computer instructions, causing the terminal device or the network-side device to perform each step performed by the terminal device or the network-side device in the method shown in Figures 6, 7, or 9 above.

[0277] The present application also provides a computer program, which includes computer instructions stored in a computer-readable storage medium. A processor of a terminal device or a network-side device reads the computer instructions from the computer-readable storage medium and executes the computer instructions, causing the terminal device or the network-side device to perform each step performed by the terminal device or the network-side device in the method shown in Figures 6, 7, or 9 above.

[0278] The present application also provides a chip, which is used in a terminal. The chip can execute each step of the method shown in Figure 6, Figure 7 or Figure 9 above, which is executed by the terminal device or the network side device.

[0279] Those skilled in the art will appreciate that in one or more of the above examples, the functions described in the embodiments of the present application can be implemented using hardware, software, firmware, or any combination thereof. When implemented using software, these functions can be stored in a computer-readable medium or transmitted as one or more instructions or codes on a computer-readable medium. Computer-readable media include computer storage media and communication media, wherein communication media include any media that facilitates the transmission of computer programs from one place to another. The storage medium can be any available medium that can be accessed by a general-purpose or special-purpose computer.

[0280] The above description is merely an exemplary embodiment of the present application and is not intended to limit the present application. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present application shall be included in the scope of protection of the present application.

Claims

1. A method for resource mapping, characterized in that: The method is executed by a terminal device, and includes: receiving first configuration information, where the first configuration information is used by the terminal device to determine a first resource unit for transmitting first information; It is determined that the first resource unit is not used for resource mapping of a physical downlink control channel PDCCH.

2. The method according to claim 1, characterized in that The first configuration information includes first transmission-related parameters, and the first transmission-related parameters are used to transmit the first information.

3. The method according to claim 2, characterized in that The first resource unit of the first information is determined based on the first transmission-related parameter.

4. The method according to claim 2, characterized in that The first configuration information also includes second transmission-related parameters, and the second transmission-related parameters are used to transmit the first information.

5. The method according to claim 4, characterized in that The first resource unit of the first information is determined based on the first transmission-related parameter; or, The first resource unit of the first information is determined based on the second transmission-related parameter; or, The first resource unit of the first information is determined based on the first transmission-related parameter and the second transmission-related parameter.

6. The method according to claim 5, characterized in that The first resource unit of the first information is determined based on the first transmission-related parameter, and the method further includes: Determining that the received first indication information indicates a first value; or, It is determined that the first indication information is not received.

7. The method according to claim 6, characterized in that The first resource unit of the first information is determined based on the second transmission-related parameter, and the method further includes: Determining that the received first indication information indicates a second value; or, It is determined that the first indication information is not received.

8. The method according to claim 6 or 7, characterized in that The first resource unit of the first information is determined based on the first transmission-related parameter and the second transmission-related parameter, and the method further includes: Determining that the received first indication information indicates a third value; or, It is determined that the first indication information is not received.

9. The method according to any one of claims 5 to 8, characterized in that The terminal device is configured with a first CORESET resource pool and a second CORESET resource pool.

10. The method according to claim 9, characterized in that In a case where the PDCCH corresponds to the first CORESET resource pool, the first resource unit of the first information is determined based on the first transmission-related parameter; or, In a case where the PDCCH corresponds to the second CORESET resource pool, the first resource unit of the first information is determined based on the second transmission-related parameter.

11. The method according to claim 10, characterized in that The method further comprises: Determining that second indication information is received; or determining that the received second indication information indicates a fourth value; The second information is used to indicate how the first transmission-related parameter and the second transmission-related parameter are used when the terminal device is configured with the first CORESET resource pool and the second CORESET resource pool.

12. The method according to claim 11, characterized in that The first resource unit of the first information is determined based on the first transmission-related parameter and the second transmission-related parameter, and the method further includes: Determine that the second indication information is not received; or determine that the received second indication information indicates the fifth value.

13. The method according to any one of claims 1 to 12, characterized in that The first resource unit of the first information is not used for resource mapping of a physical downlink control channel PDCCH, which includes one of the following situations: The first resource element is not used for mapping the PDCCH and a demodulation reference signal DMRS of the PDCCH; The first resource unit is not used only for mapping the PDCCH; and The first resource unit is not used only for mapping the DMRS of the PDCCH.

14. The method according to any one of claims 1 to 13, characterized in that Other resource units among all resource units corresponding to the symbol where the first resource unit is located are also not used for resource mapping of the PDCCH.

15. The method according to any one of claims 1 to 14, characterized in that The first resource unit is also not used for resource mapping of the PDSCH.

16. The method according to any one of claims 1 to 15, characterized in that The first information is a cell-specific reference signal CRS in a long term evolution (LTE) system, and the PDCCH is a PDCCH in a new radio (NR) system.

17. A method for resource mapping, characterized in that: The method is performed by a network-side device, and includes: First configuration information is sent to a terminal device, where the first configuration information is used by the terminal device to determine a first resource unit for transmitting first information, and to determine that the first resource unit is not used for resource mapping of a physical downlink control channel PDCCH.

18. The method according to claim 17, characterized in that The first configuration information includes first transmission-related parameters, and the first transmission-related parameters are used to transmit the first information.

19. The method according to claim 18, characterized in that The first resource unit of the first information is determined based on the first transmission-related parameter.

20. The method according to claim 18, wherein The first configuration information also includes second transmission-related parameters, and the second transmission-related parameters are used to transmit the first information.

21. The method according to claim 20, characterized in that The first resource unit of the first information is determined based on the first transmission-related parameter; or, The first resource unit of the first information is determined based on the second transmission-related parameter; or, The first resource unit of the first information is determined based on the first transmission-related parameter and the second transmission-related parameter.

22. The method according to claim 21, characterized in that The first resource unit of the first information is determined based on the first transmission-related parameter, and the method further includes: Sending first indication information indicating a first value to the terminal device; or, Determine not to send the first indication information to the terminal device.

23. The method according to claim 22, characterized in that The first resource unit of the first information is determined based on the second transmission-related parameter, and the method further includes: Sending the first indication information indicating the second value to the terminal device; or, Determine not to send the first indication information to the terminal device.

24. The method according to claim 22 or 23, characterized in that The first resource unit of the first information is determined based on the first transmission-related parameter and the second transmission-related parameter, and the method further includes: Sending the first indication information indicating the third value to the terminal device; or, Determine not to send the first indication information to the terminal device.

25. The method according to any one of claims 21 to 24, characterized in that The method further comprises: A first CORESET resource pool and a second CORESET resource pool are configured for the terminal device.

26. The method according to claim 25, characterized in that In a case where the PDCCH corresponds to the first CORESET resource pool, the first resource unit of the first information is determined based on the first transmission-related parameter; or, In a case where the PDCCH corresponds to the second CORESET resource pool, the first resource unit of the first information is determined based on the second transmission-related parameter.

27. The method according to claim 26, characterized in that The method further comprises: Sending second indication information to the terminal device; or, sending the second indication information indicating a fourth value to the terminal device; The second information is used to indicate how the first transmission-related parameter and the second transmission-related parameter are used when the terminal device is configured with the first CORESET resource pool and the second CORESET resource pool.

28. The method according to claim 27, characterized in that The first resource unit of the first information is determined based on the first transmission-related parameter and the second transmission-related parameter, and the method further includes: Determine not to send the second indication information to the terminal device; or send the second indication information indicating the fifth value to the terminal device.

29. The method according to any one of claims 17 to 28, characterized in that The first resource unit of the first information is not used for resource mapping of a physical downlink control channel PDCCH, which includes one of the following situations: The first resource element is not used for mapping the PDCCH and a demodulation reference signal DMRS of the PDCCH; The first resource unit is not used only for mapping the PDCCH; and The first resource unit is not used only for mapping the DMRS of the PDCCH.

30. The method according to any one of claims 17 to 29, characterized in that Other resource units among all resource units corresponding to the symbol where the first resource unit is located are also not used for resource mapping of the PDCCH.

31. The method according to any one of claims 17 to 30, characterized in that The first resource unit is also not used for resource mapping of the PDSCH.

32. The method according to any one of claims 17 to 31, characterized in that The first information is a cell-specific reference signal CRS in a long term evolution (LTE) system, and the PDCCH is a PDCCH in a new radio (NR) system.

33. A device for resource mapping, characterized in that The device comprises: A receiving module, configured to receive first configuration information, where the first configuration information is used by a terminal device to determine a first resource unit for transmitting first information; The determination module is used to determine that the first resource unit is not used for resource mapping of a physical downlink control channel PDCCH.

34. The device according to claim 33, characterized in that The first configuration information includes first transmission-related parameters, and the first transmission-related parameters are used to transmit the first information.

35. The device according to claim 34, characterized in that The first resource unit of the first information is determined based on the first transmission-related parameter.

36. The device according to claim 34, characterized in that The first configuration information also includes second transmission-related parameters, and the second transmission-related parameters are used to transmit the first information.

37. The device according to claim 36, characterized in that The first resource unit of the first information is determined based on the first transmission-related parameter; or, The first resource unit of the first information is determined based on the second transmission-related parameter; or, The first resource unit of the first information is determined based on the first transmission-related parameter and the second transmission-related parameter.

38. The device according to claim 37, characterized in that The first resource unit of the first information is determined based on the first transmission-related parameter, and the determination module is further used to determine that the received first indication information indicates a first value; or determine that the first indication information is not received.

39. The device according to claim 38, characterized in that The first resource unit of the first information is determined based on the second transmission-related parameter, and the determination module is further used to determine that the received first indication information indicates a second value; or to determine that the first indication information is not received.

40. The device according to claim 38 or 39, characterized in that The first resource unit of the first information is determined based on the first transmission-related parameter and the second transmission-related parameter, and the determination module is further used to determine that the received first indication information indicates a third value; or to determine that the first indication information is not received.

41. The device according to any one of claims 37 to 40, characterized in that The terminal device is configured with a first CORESET resource pool and a second CORESET resource pool.

42. The device according to claim 41, characterized in that In a case where the PDCCH corresponds to the first CORESET resource pool, the first resource unit of the first information is determined based on the first transmission-related parameter; or, In a case where the PDCCH corresponds to the second CORESET resource pool, the first resource unit of the first information is determined based on the second transmission-related parameter.

43. The device according to claim 42, characterized in that The determining module is further configured to determine that second indication information is received; or to determine that the received second indication information indicates a fourth value; The second information is used to indicate how the first transmission-related parameter and the second transmission-related parameter are used when the terminal device is configured with the first CORESET resource pool and the second CORESET resource pool.

44. The device according to claim 43, characterized in that The first resource unit of the first information is determined based on the first transmission-related parameter and the second transmission-related parameter. The determination module is further used to determine that the second indication information is not received; or to determine that the received second indication information indicates a fifth value.

45. The device according to any one of claims 33 to 44, characterized in that The first resource unit of the first information is not used for resource mapping of a physical downlink control channel PDCCH, which includes one of the following situations: The first resource element is not used for mapping the PDCCH and a demodulation reference signal DMRS of the PDCCH; The first resource unit is not used only for mapping the PDCCH; and The first resource unit is not used only for mapping the DMRS of the PDCCH.

46. ​​The device according to any one of claims 33 to 45, characterized in that Other resource units among all resource units corresponding to the symbol where the first resource unit is located are also not used for resource mapping of the PDCCH.

47. The device according to any one of claims 33 to 46, characterized in that The first resource unit is also not used for resource mapping of the PDSCH.

48. The device according to any one of claims 33 to 47, characterized in that The first information is a cell-specific reference signal CRS in a long term evolution (LTE) system, and the PDCCH is a PDCCH in a new radio (NR) system.

49. A device for resource mapping, characterized in that The device comprises: A sending module is used to send first configuration information to a terminal device, where the first configuration information is used by the terminal device to determine a first resource unit for transmitting first information and to determine that the first resource unit is not used for resource mapping of a physical downlink control channel PDCCH.

50. The device according to claim 49, characterized in that The first configuration information includes first transmission-related parameters, and the first transmission-related parameters are used to transmit the first information.

51. The device according to claim 50, characterized in that The first resource unit of the first information is determined based on the first transmission-related parameter.

52. The device according to claim 50, characterized in that The first configuration information also includes second transmission-related parameters, and the second transmission-related parameters are used to transmit the first information.

53. The device according to claim 52, characterized in that The first resource unit of the first information is determined based on the first transmission-related parameter; or, The first resource unit of the first information is determined based on the second transmission-related parameter; or, The first resource unit of the first information is determined based on the first transmission-related parameter and the second transmission-related parameter.

54. The device according to claim 53, characterized in that The first resource unit of the first information is determined based on the first transmission-related parameter, and the apparatus further includes: Sending first indication information indicating a first value to the terminal device; or, Determine not to send the first indication information to the terminal device.

55. The device according to claim 54, characterized in that The first resource unit of the first information is determined based on the second transmission-related parameter, and the apparatus further includes: Sending the first indication information indicating the second value to the terminal device; or, Determine not to send the first indication information to the terminal device.

56. The device according to claim 54 or 55, characterized in that The first resource unit of the first information is determined based on the first transmission-related parameter and the second transmission-related parameter, and the apparatus further includes: Sending the first indication information indicating the third value to the terminal device; or, Determine not to send the first indication information to the terminal device.

57. The device according to any one of claims 53 to 56, characterized in that The device further comprises: A configuration module is configured to configure a first CORESET resource pool and a second CORESET resource pool for the terminal device.

58. The device according to claim 57, characterized in that In a case where the PDCCH corresponds to the first CORESET resource pool, the first resource unit of the first information is determined based on the first transmission-related parameter; or, In a case where the PDCCH corresponds to the second CORESET resource pool, the first resource unit of the first information is determined based on the second transmission-related parameter.

59. The device according to claim 58, characterized in that The sending module is further configured to send second indication information to the terminal device; or send the second indication information indicating a fourth value to the terminal device; The second information is used to indicate how the first transmission-related parameter and the second transmission-related parameter are used when the terminal device is configured with the first CORESET resource pool and the second CORESET resource pool.

60. The device according to claim 59, characterized in that The first resource unit of the first information is determined based on the first transmission-related parameter and the second transmission-related parameter, and the sending module is also used to determine whether to send the second indication information to the terminal device, or to send the second indication information indicating the fifth value to the terminal device.

61. The device according to any one of claims 49 to 60, characterized in that The first resource unit of the first information is not used for resource mapping of a physical downlink control channel PDCCH, which includes one of the following situations: The first resource element is not used for mapping the PDCCH and a demodulation reference signal DMRS of the PDCCH; The first resource unit is not used only for mapping the PDCCH; and The first resource unit is not used only for mapping the DMRS of the PDCCH.

62. The device according to any one of claims 49 to 61, characterized in that Other resource units among all resource units corresponding to the symbol where the first resource unit is located are also not used for PDCCH resource mapping.

63. The device according to any one of claims 49 to 62, characterized in that The first resource unit is also not used for resource mapping of the PDSCH.

64. The device according to any one of claims 49 to 63, characterized in that The first information is a cell-specific reference signal CRS in a long term evolution (LTE) system, and the PDCCH is a PDCCH in a new radio (NR) system.

65. A terminal device, characterized in that: The terminal device includes a processor, a memory and a transceiver; The transceiver is configured to receive first configuration information, where the first configuration information is used by the terminal device to determine a first resource unit for transmitting first information; The processor is configured to determine that the first resource unit is not used for resource mapping of a physical downlink control channel (PDCCH).

66. A network side device, characterized in that: The network side device includes a processor, a memory and a transceiver; The transceiver is used to send first configuration information to the terminal device, where the first configuration information is used by the terminal device to determine a first resource unit for transmitting first information and to determine that the first resource unit is not used for resource mapping of a physical downlink control channel PDCCH.

67. A computer-readable storage medium, characterized in that The storage medium stores a computer program, which is used to be executed by a processor to implement the method for resource mapping according to any one of claims 1 to 32.

68. A computer program product, characterized in that The computer program product includes computer instructions, which are stored in a computer-readable storage medium; the processor of the terminal device or the network side device executes the computer instructions, so that the terminal device or the network side device executes the method for resource mapping as described in any one of claims 1 to 32.

69. A computer program, characterized in that The computer program includes computer instructions, and the processor of the terminal device or the network side device executes the computer instructions, so that the terminal device or the network side device executes the method for resource mapping as described in any one of claims 1 to 32.

70. A chip, characterized in that: The chip is used to execute the method for resource mapping according to any one of claims 1 to 32.

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