Physical downlink shared channel resource configuration method, apparatus, device, and storage medium

Abstract

Embodiments of the present application provide a physical downlink shared channel resource configuration method, device, equipment and storage medium, and the method comprises: determining the resources available for PDSCH transmission in the control resource set (CORESET) of a physical downlink control channel (PDCCH). The physical downlink shared channel resource configuration method, device, equipment and storage medium provided by the embodiments of the present application determine the resources available for PDSCH transmission in the CORESET of the PDCCH, perform PDSCH information transmission, and avoid aggregation level ambiguity.

Description

TECHNICAL FIELD

[0001] The application belongs to the technical field of communication, and particularly relates to a physical downlink shared channel resource configuration method and device, equipment and a storage medium. BACKGROUND

[0002] Since a reduced capability (Redcap) terminal does not have enough number of transceiving antennas, in order to guarantee communication quality, a physical downlink control channel (PDCCH) will introduce more aggregation levels.

[0003] In the related art, a physical downlink shared channel (PDSCH) is allowed to use frequency domain resources that have not been occupied by PDCCH in time domain symbols for transmission. SUMMARY

[0004] Embodiments of the application provide a physical downlink shared channel resource configuration method, device, equipment and storage medium, which can solve the problem of PDSCH effective transmission.

[0005] In a first aspect, embodiments of the application provide a PDSCH resource determination method, comprising:

[0006] The terminal determines resources in a control resource set (CORESET) of a physical downlink control channel (PDCCH) that can be used for PDSCH transmission.

[0007] In a second aspect, embodiments of the application provide a PDSCH resource configuration method, comprising:

[0008] The network side device determines resources in a control resource set (CORESET) of a physical downlink control channel (PDCCH) that can be used for PDSCH transmission.

[0009] In a third aspect, embodiments of the application provide a PDSCH resource configuration device, comprising:

[0010] The first determination module is configured to determine resources in a control resource set (CORESET) of a physical downlink control channel (PDCCH) that can be used for PDSCH transmission.

[0011] In a fourth aspect, embodiments of the application provide a PDSCH resource determination device, comprising:

[0012] The second determination module is configured to determine resources in a control resource set (CORESET) of a physical downlink control channel (PDCCH) that can be used for PDSCH transmission.

[0013] In a fifth aspect, an embodiment of the present application provides a terminal, comprising a processor, a memory, and a program or instruction stored in the memory and executable on the processor, and the program or instruction, when executed by the processor, implements the steps of the method according to the first aspect.

[0014] In a sixth aspect, an embodiment of the present application provides a network side device, comprising a processor, a memory, and a program or instruction stored in the memory and executable on the processor, and the program or instruction, when executed by the processor, implements the steps of the method according to the second aspect.

[0015] In a seventh aspect, an embodiment of the present application provides a readable storage medium, the readable storage medium storing a program or instruction, and the program or instruction, when executed by a processor, implements the steps of the method according to the first aspect or the second aspect.

[0016] In an eighth aspect, an embodiment of the present application provides a chip, the chip comprising a processor and a communication interface, the communication interface being coupled to the processor, and the processor being configured to execute a program or instruction to implement the method according to the first aspect or the second aspect.

[0017] The physical downlink shared channel resource configuration method, device, equipment and storage medium provided by the embodiments of the present application can effectively transmit PDSCH information by determining the resources in the CORESET of the PDCCH that can be used for PDSCH transmission. BRIEF DESCRIPTION OF DRAWINGS

[0018] Figure 1 a A block diagram of a wireless communication system to which embodiments of the present application can be applied is shown;

[0019] Figure 1 A PDSCH resource configuration method provided by the embodiments of the present application;

[0020] Figure 2 One of the PDSCH resource configuration principle diagrams provided by the embodiments of the present application;

[0021] Figure 3 Another of the PDSCH resource configuration principle diagrams provided by the embodiments of the present application;

[0022] Figure 4 A third of the PDSCH resource configuration principle diagrams provided by the embodiments of the present application;

[0023] Figure 5 A fourth of the PDSCH resource configuration principle diagrams provided by the embodiments of the present application;

[0024] Figure 6 A fifth of the PDSCH resource configuration principle diagrams provided by the embodiments of the present application;

[0025] Figure 7 Fig. 6 is a schematic diagram of a resource configuration principle of PDSCH provided by an embodiment of the present application;

[0026] Figure 8 Fig. 7 is a schematic diagram of a resource configuration principle of PDSCH provided by an embodiment of the present application;

[0027] Figure 9 Fig. 8 is a schematic diagram of a resource configuration principle of PDSCH provided by an embodiment of the present application;

[0028] Figure 10 Fig. 9 is a schematic diagram of a resource configuration principle of PDSCH provided by an embodiment of the present application;

[0029] Figure 11 Fig. 10 is a schematic diagram of a resource configuration principle of PDSCH provided by an embodiment of the present application;

[0030] Figure 12 A PDSCH resource determination method provided by an embodiment of the present application;

[0031] Figure 13a A PDSCH resource configuration device provided by an embodiment of the present application;

[0032] Figure 13b A PDSCH resource configuration device provided by an embodiment of the present application;

[0033] Figure 14a A PDSCH resource determination device provided by an embodiment of the present application;

[0034] Figure 14b A PDSCH resource determination device provided by an embodiment of the present application;

[0035] Figure 15 Fig. 1 is a schematic diagram of a hardware structure of a network side device provided by an embodiment of the present application;

[0036] Figure 16 Fig. 2 is a schematic diagram of a hardware structure of a terminal provided by an embodiment of the present application. DETAILED DESCRIPTION

[0037] The technical solutions in the embodiments of the present application will be described clearly and completely below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are some embodiments of the present application, but not all the embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative work fall within the scope of the present application.

[0038] The terms "first", "second", and the like in the description and in the claims of the present application are used for distinguishing between similar objects and not necessarily for describing a specific sequential or chronological order. It is to be understood that the use of such terms is interchangeable under appropriate circumstances such that the embodiments of the present application described herein are capable of operation in other sequences than those depicted or otherwise suggested by the following disclosure. Furthermore, the terms "comprise", "comprising", "include", "including", and the like used in the description and the claims of the present application are used in the sense of "including but not limited to". The terms "coupled" and "coupling" as used in the description and the claims of the present application refer to any direct or indirect coupling or link between the elements, which is meant to include a wired or wireless electrical connection or link.

[0039] It is worth noting that the techniques described in the embodiments of the present application are not limited to Long Term Evolution (LTE) / LTE-Advanced (LTE-A) systems, and can also be used in other wireless communication systems, such as Code Division Multiple Access (CDMA), Time Division Multiple Access (TDMA), Frequency Division Multiple Access (FDMA), Orthogonal Frequency Division Multiple Access (OFDMA), Single-carrier Frequency-Division Multiple Access (SC-FDMA), and other systems. The terms "system" and "network" in the embodiments of the present application are often used interchangeably, and the described techniques can be used in the above-mentioned systems and radio technologies, as well as in other systems and radio technologies. However, the following description describes a New Radio (NR) system for example purposes, and NR terminology is used in most of the following description, and these techniques can also be applied to applications other than NR system applications, such as 6th Generation (6G) communication systems.

[0040] Figure 1 aA block diagram of a wireless communication system to which embodiments of the present application can be applied is shown. The wireless communication system includes a terminal 11 and a network side device 12. The terminal 11 can also be referred to as a terminal device or a user terminal (UE). The terminal 11 can be a terminal side device such as a mobile phone, a tablet personal computer, a laptop computer, a personal digital assistant (PDA), a palm computer, a netbook, an ultra-mobile personal computer (UMPC), a mobile Internet device (MID), a wearable device, or a vehicle user equipment (VUE), a pedestrian user equipment (PUE), etc. The wearable device includes a bracelet, a headset, glasses, etc. It should be noted that the specific type of the terminal 11 is not limited in the embodiments of the present application. The network side device 12 can be a base station or a core network. The base station can be referred to as a node B, an evolved node B, an access point, a base transceiver station (BTS), a radio base station, a radio transceiver, a basic service set (BSS), an extended service set (ESS), a node B, an evolved node B (eNB), a home node B, a home evolved node B, a WLAN access point, a WiFi node, a transmitting receiving point (TRP), or some other appropriate terminology in the art, as long as the same technical effects are achieved. The base station is not limited to a specific technical term, and it should be noted that only a base station in an NR system is taken as an example in the embodiments of the present application, but the specific type of the base station is not limited.

[0041] Figure 1 A PDSCH resource configuration method provided by the embodiments of the present application is shown in Figure 1 A PDSCH resource configuration method provided by the embodiments of the present application is shown in

[0042] In step 101, the network side device determines resources available for PDSCH transmission in a control resource set (CORESET) of a physical downlink control channel (PDCCH).

[0043] Specifically, since the Redcap UE does not have enough number of transceiving antennas, in order to guarantee the communication quality, the PDCCH will introduce more aggregation levels (AL).

[0044] The PDCCHs of different aggregation levels can have the same control channel element (CCE) starting position, and after introducing a new aggregation level, the number of aggregation levels involving the starting point same aggregation level ambiguity phenomenon increases, and the existing protocol cannot provide a more perfect solution.

[0045] In the embodiments of the present application, the network side device determines the resources available for PDSCH transmission in the control resource set (CORESET) of the PDCCH, and performs PDSCH transmission to avoid the aggregation level ambiguity problem.

[0046] For example, the network side device can send configuration information to the terminal to inform the terminal of the resources available for PDSCH transmission in the CORESET of the PDCCH.

[0047] For another example, the network side device and the terminal can determine the resources available for PDSCH transmission in the CORESET of the PDCCH in a protocol agreed manner.

[0048] After the network side device determines the resources available for PDSCH transmission in the CORESET of the PDCCH, the network side device sends PDSCH information through the resources available for PDSCH transmission, and performs rate matching or puncturing on the resources unavailable for PDSCH transmission.

[0049] The physical downlink shared channel resource configuration method provided by the embodiments of the present application determines the resources available for PDSCH transmission in the CORESET of the PDCCH, and performs PDSCH information transmission to avoid aggregation level ambiguity.

[0050] Optionally, the determining the resources available for PDSCH transmission in the CORESET of the PDCCH comprises:

[0051] Configuring the resources in the CORESET of the PDCCH except the resources corresponding to the first aggregation level to be used for PDSCH transmission;

[0052] The first aggregation level is determined by at least one of the following manners:

[0053] The first aggregation level is the maximum value in the aggregation levels configured in the common search space;

[0054] The first aggregation level is a preset reference PDCCH aggregation level.

[0055] The aggregation levels of the PDCCH include aggregation levels other than a second aggregation level, and the starting CCE positions of the PDCCHs of the at least two aggregation levels are the same; the second aggregation level is K, K e {1, 2, 4, 8, 16}.

[0056] Specifically, embodiments of the present application are directed to a case where aggregation levels other than 1, 2, 4, 8, and 16 are newly introduced, and the starting CCE positions of the PDCCHs of the at least two aggregation levels are the same, resources in a CORESET of the PDCCH other than resources corresponding to a first aggregation level are configured for PDSCH transmission.

[0057] The first aggregation level is determined by at least one of the following manners:

[0058] The first aggregation level is a maximum value in aggregation levels configured in a common search space;

[0059] The first aggregation level is a preset reference PDCCH aggregation level.

[0060] Figure 2 A PDSCH resource configuration principle diagram provided by embodiments of the present application is shown in FIG. 1, where resources in a CORESET of the PDCCH other than resources corresponding to a maximum aggregation level configured in a common search space are configured for PDSCH transmission. Figure 2

[0061] Once a PDCCH aggregation level blindly detected by a terminal is lower than the maximum PDCCH aggregation level, PDCCH resources are reserved according to the maximum PDCCH aggregation level, and the remaining resources are used for PDSCH transmission.

[0062] For example, aggregation levels of 6, 12, 24, and 32 are newly introduced, and the maximum value 32 in the aggregation levels configured in the common search space, at this time, resources in the CORESET of the PDCCH other than resources corresponding to the aggregation level 32 are configured for PDSCH transmission.

[0063] Figure 3 A PDSCH resource configuration principle diagram provided by embodiments of the present application is shown in FIG. 2, where resources in a CORESET of the PDCCH other than resources corresponding to a preset reference PDCCH aggregation level are configured for PDSCH transmission. Figure 3

[0064] ​​If the PDCCH aggregation level blindly detected by the terminal is lower than the preset reference PDCCH aggregation level, the PDCCH resource is reserved according to the preset reference PDCCH aggregation level, and the remaining resources are used for PDSCH transmission.

[0065] The preset reference PDCCH aggregation level can be configured according to actual needs. For example, it is configured as 32, or configured as 24.

[0066] For example, the aggregation levels of 6, 12, 24, and 32 are newly introduced, the preset reference PDCCH aggregation level is 32, and the resources in the CORESET of the PDCCH except the resources corresponding to the aggregation level 32 are configured for PDSCH transmission.

[0067] For another example, the aggregation levels of 6, 12, 24, and 32 are newly introduced, the preset reference PDCCH aggregation level is 24, and the resources in the CORESET of the PDCCH except the resources corresponding to the aggregation level 24 are configured for PDSCH transmission.

[0068] The physical downlink shared channel resource configuration method provided by the embodiment of the application determines the resources in the CORESET of the PDCCH that can be used for PDSCH transmission, configures the resources in the CORESET of the PDCCH except the resources corresponding to the preset and / or maximum aggregation level for PDSCH transmission, and further avoids the ambiguity of the aggregation level.

[0069] Optionally, the determining the resources in the CORESET of the PDCCH that can be used for PDSCH transmission comprises at least one of the following:

[0070] The resources in the CORESET of the PDCCH except the resources corresponding to the first aggregation level are configured for PDSCH transmission.

[0071] The symbols except the symbols occupied by the CORESET of the PDCCH are configured for PDSCH transmission.

[0072] The first aggregation level is determined by at least one of the following:

[0073] The first aggregation level is a reference PDCCH aggregation level configured by a higher layer.

[0074] The first aggregation level is an aggregation level determined by the total number of CCEs in the CORESET of the PDCCH.

[0075] The aggregation levels of the PDCCH include aggregation levels except a second aggregation level, and the starting CCE positions of the PDCCH of the at least two aggregation levels are the same; the second aggregation level is K, K∈{1, 2, 4, 8, 16}.

[0076] Specifically, embodiments of the present application are directed to a case where new aggregation levels other than 1, 2, 4, 8, and 16 are introduced, and the starting CCE positions of PDCCHs of at least two aggregation levels are the same, resources in a CORESET of the PDCCH other than resources corresponding to a first aggregation level are configured for PDSCH transmission.

[0077] And / or PDSCH transmission is performed on symbols other than symbols occupied by the CORESET of the PDCCH.

[0078] The first aggregation level is determined by at least one of the following ways:

[0079] The first aggregation level is a reference PDCCH aggregation level configured by a higher layer;

[0080] The first aggregation level is an aggregation level determined by a total number of CCEs in the CORESET of the PDCCH.

[0081] Figure 4 A third PDSCH resource configuration principle diagram provided by embodiments of the present application is shown in FIG. 3. Figure 4 As shown in FIG. 3, resources in the CORESET of the PDCCH other than resources corresponding to an aggregation level configured by a higher layer are configured for PDSCH transmission.

[0082] Once the PDCCH aggregation level blindly detected by the terminal is lower than the reference PDCCH aggregation level configured by the higher layer, the PDCCH resources are reserved according to the reference PDCCH aggregation level configured by the higher layer, and the remaining resources are used for PDSCH transmission.

[0083] The aggregation level configured by the higher layer can be set according to actual needs. For example, it can be configured according to the capability of the terminal, or according to the channel quality.

[0084] For example, new aggregation levels of 6, 12, 24, and 32 are introduced, and if the aggregation level configured by the higher layer is 32, at this time, resources in the CORESET of the PDCCH other than resources corresponding to the aggregation level 32 are configured for PDSCH transmission.

[0085] For another example, new aggregation levels of 6, 12, 24, and 32 are introduced, and if the aggregation level configured by the higher layer is 24, at this time, resources in the CORESET of the PDCCH other than resources corresponding to the aggregation level 24 are configured for PDSCH transmission.

[0086] Figure 5 A fourth PDSCH resource configuration principle diagram provided by embodiments of the present application is shown in FIG. 4. Figure 5As shown, the resources in the CORESET configured for PDCCH, except for the resources corresponding to the aggregation level determined by the total number of CCEs in the CORESET of PDCCH, are used for PDSCH transmission. The aggregation level value determined by the total number of CCEs in the CORESET (rate matching is performed on the entire CORESET).

[0087] Once the PDCCH aggregation level blindly detected by the terminal is lower than the aggregation level determined by the total number of CCEs in the CORESET of PDCCH, the PDCCH resources are reserved according to the aggregation level determined by the total number of CCEs in the CORESET of PDCCH, and the remaining resources are used for PDSCH transmission.

[0088] The way of determining the aggregation level by the total number of CCEs in the CORESET of PDCCH can be set according to actual needs. For example, the total number of CCEs in the CORESET is equal to the aggregation level, or the total number of CCEs in the CORESET is equal to twice the aggregation level.

[0089] For example, the total number of CCEs in the CORESET is 32, then the resources in the CORESET configured for PDCCH, except for the resources corresponding to the aggregation level 32, are used for PDSCH transmission.

[0090] For example, the total number of CCEs in the CORESET is 24, then the resources in the CORESET configured for PDCCH, except for the resources corresponding to the aggregation level 24, are used for PDSCH transmission.

[0091] Figure 6 The fifth schematic diagram of the resource configuration principle of PDSCH provided by the embodiments of the present application is shown as follows. Figure 6 As shown, PDSCH transmission is performed on the symbols except for the symbols occupied by the CORESET configured for PDCCH.

[0092] For example, the PDCCH aggregation level is determined according to the number of CCEs in the CORESET, and the mapping is started from the symbols outside the CORESET. Once the PDCCH aggregation level blindly detected by the user is lower than the PDCCH aggregation level, the PDCCH resources are reserved according to the symbols occupied by the CORESET configured for PDCCH, and the symbols outside the CORESET configured for PDCCH are used for PDSCH transmission.

[0093] The physical downlink shared channel resource configuration method provided in the embodiments of the present application determines the resources available for PDSCH transmission in the CORESET of the PDCCH, configures the resources in the CORESET of the PDCCH other than the resources corresponding to the aggregation levels configured by the higher layer and / or determined according to the number of CCEs in the CORESET for PDSCH transmission, and further avoids aggregation level ambiguity.

[0094] Optionally, the aggregation levels in the common search space of the PDCCH include X, Y and Z;

[0095] The number of candidate positions of the PDCCH with the aggregation level X is A;

[0096] The number of candidate positions of the PDCCH with the aggregation level Y is B;

[0097] The number of candidate positions of the PDCCH with the aggregation level Z is C;

[0098] And the following conditions are met:

[0099] a, X∈{4, 8, 12, 16}; Y∈{8, 12, 16, 24}; Z∈{12, 16, 24, 32}; X≠Y≠Z;

[0100] b, A, B and C are positive integers;

[0101] c, AX+BY+CZ≤C_total;

[0102] Wherein, C_total is the maximum number of CCEs supported by the terminal;

[0103] The aggregation levels of the PDCCH include aggregation levels other than the second aggregation level, and the second aggregation level is K, K∈{1, 2, 4, 8, 16}.

[0104] Specifically, the embodiments of the present application are aimed at the case where aggregation levels other than 1, 2, 4, 8 and 16 are newly introduced, and the configuration mode of the aggregation levels in the common search space is as follows:

[0105] The aggregation levels in the common search space include X, Y and Z;

[0106] The number of candidate positions of the PDCCH with the aggregation level X is A;

[0107] The number of candidate positions of the PDCCH with the aggregation level Y is B;

[0108] The number of candidate positions of the PDCCH with the aggregation level Z is C;

[0109] And the following conditions are met:

[0110] a, X∈{4, 8, 12, 16}; Y∈{8, 12, 16, 24}; Z∈{12, 16, 24, 32}; X≠Y≠Z;

[0111] b, A, B and C are all positive integers;

[0112] c, AX+BY+CZ≤C_total;

[0113] Wherein, C_total is the maximum number of CCEs supported by the terminal. Different subcarrier spacing SCS, the C_total value may be different.

[0114] Optionally, the newly introduced aggregation level can also have the same resource mapping rule as the original aggregation level.

[0115] The physical downlink shared channel resource configuration method provided by the embodiment of the application further avoids aggregation level ambiguity by determining the configuration mode of the aggregation level in the common search space.

[0116] Optionally, the method further comprises at least one of the following:

[0117] The aggregation level of the PDCCH includes an aggregation level other than the second aggregation level; the second aggregation level is K, K∈{1, 2, 4, 8, 16};

[0118] The resource mapping mode of the PDCCH is a non-interleaved mode;

[0119] The maximum aggregation level configured in the common search space is greater than 8;

[0120] The number of CORESET symbols of the PDCCH is greater than or equal to 4;

[0121] The PDCCH is transmitted in multiple CORESET bundles;

[0122] The PDCCH is transmitted on multiple consecutive symbols in the CORESET bundle.

[0123] Specifically, the conditions used by the above-mentioned scheme of the embodiment of the application can include at least one of the following:

[0124] The aggregation level of the PDCCH includes an aggregation level other than the second aggregation level; the second aggregation level is K, K∈{1, 2, 4, 8, 16};

[0125] The resource mapping mode of the PDCCH is a non-interleaved mode;

[0126] The maximum aggregation level configured in the common search space is greater than 8;

[0127] A number of CORESET symbols of the PDCCH is greater than or equal to 4;

[0128] The PDCCH is transmitted in multiple CORESET bundles.

[0129] The PDCCH is transmitted on multiple consecutive symbols in the CORESET bundle.

[0130] Optionally, the multiple CORESETs in the CORESET bundle are transmitted on consecutive symbols.

[0131] The physical downlink shared channel resource configuration method provided in the embodiments of the present application determines the resources available for PDSCH transmission in the CORESET of the PDCCH, and transmits PDSCH information, thereby avoiding ambiguity of the aggregation level.

[0132] Optionally, before the determining the resources available for PDSCH transmission in the CORESET of the PDCCH, the method further comprises:

[0133] The network-side device receives terminal capability information sent by the terminal.

[0134] The terminal capability information comprises at least one of the following:

[0135] An aggregation level supported by the terminal;

[0136] A maximum number of symbols contained in a PDCCH supported by the terminal;

[0137] Whether the terminal supports a CORESET bundle.

[0138] Specifically, before the network-side device determines the resources available for PDSCH transmission in the CORESET of the PDCCH in the embodiments of the present application, the network-side device can also receive terminal capability information sent by the terminal.

[0139] The network-side device can determine the first aggregation level with the assistance of the terminal capability information.

[0140] The terminal capability information comprises at least one of the following:

[0141] An aggregation level supported by the terminal;

[0142] A maximum number of symbols contained in a PDCCH supported by the terminal;

[0143] Whether the terminal supports a CORESET bundle.

[0144] The physical downlink shared channel resource configuration method provided in the embodiments of the present application receives terminal capability information sent by the terminal, and transmits PDSCH information according to the terminal capability, thereby further avoiding ambiguity of the aggregation level.

[0145] Optionally, the determining the resources available for the PDSCH transmission in the CORESET of the PDCCH comprises:

[0146] configuring the resources in the CORESET of the PDCCH except the resources corresponding to the third aggregation level for the PDSCH transmission;

[0147] The third aggregation level is the PDCCH aggregation level blindly detected by the terminal, and the downlink control information (DCI) transmitted in the PDCCH of the third aggregation level contains first identification information; the first identification information is used to indicate the third aggregation level.

[0148] Specifically, in the embodiment of the application, the PDCCHs of different aggregation levels are distinguished by identification information, and the resources in the CORESET of the PDCCH except the resources corresponding to the third aggregation level are configured for the PDSCH transmission.

[0149] The third aggregation level is the PDCCH aggregation level blindly detected by the terminal, and the downlink control information (DCI) transmitted in the PDCCH of the third aggregation level contains first identification information; the first identification information is used to indicate the third aggregation level.

[0150] The physical downlink shared channel resource configuration method provided by the embodiment of the application distinguishes the PDCCHs of different aggregation levels by identification information, and performs the PDSCH information transmission, which avoids the ambiguity of the aggregation level, reduces the resource waste, and improves the spectrum utilization rate.

[0151] Optionally, the first identification information is a padding bit.

[0152] Specifically, Figure 7 As shown in FIG. 6 of the resource configuration principle diagram of the PDSCH provided by the embodiment of the application, Figure 7 the PDCCHs of different aggregation levels are distinguished by padding bits in the embodiment of the application.

[0153] The form of adding padding bits in the DCI can be adopted, so that the coding rate of the polar coding for the DCI is higher than 1 / 8, to solve the ambiguity of the aggregation level.

[0154] The physical downlink shared channel resource configuration method provided by the embodiment of the application distinguishes the PDCCHs of different aggregation levels by padding bits, and performs the PDSCH information transmission, which avoids the ambiguity of the aggregation level, reduces the resource waste, and improves the spectrum utilization rate.

[0155] Optionally, the determining the resources available for the PDSCH transmission in the CORESET of the PDCCH comprises:

[0156] configuring the resources in the CORESET of the PDCCH except the resources corresponding to the third aggregation level for the PDSCH transmission;

[0157] The third aggregation level is the PDCCH aggregation level blindly detected by the terminal, and the scrambling sequence of the PDCCH of the third aggregation level is used to indicate the third aggregation level.

[0158] Specifically, Figure 8 A seventh PDSCH resource configuration principle diagram provided by the embodiment of the application is shown in the figure, Figure 8 In the embodiment of the application, the PDCCHs of different aggregation levels are distinguished by scrambling sequences.

[0159] The resources in the CORESET of the PDCCH except the resources corresponding to the third aggregation level are configured for the PDSCH transmission.

[0160] The third aggregation level is the PDCCH aggregation level blindly detected by the terminal, and the scrambling sequence of the PDCCH of the third aggregation level is used to indicate the third aggregation level.

[0161] The scrambling sequence of the PDCCH is generated by introducing an ID related to the aggregation level, so that the current aggregation level can be directly detected when blind detection is performed, to avoid the generation of aggregation level ambiguity.

[0162] The physical downlink shared channel resource configuration method provided by the embodiment of the application distinguishes the PDCCHs of different aggregation levels by scrambling sequences, and performs PDSCH information transmission, which avoids aggregation level ambiguity and reduces resource waste and improves spectrum utilization.

[0163] Optionally, the aggregation levels of the PDCCH include aggregation levels except a second aggregation level, and the starting CCE positions of the PDCCHs of at least two aggregation levels are the same; the second aggregation level is K, K ∈ {1, 2, 4, 8, 16}.

[0164] Specifically, the embodiment of the application is aimed at the case that a new aggregation level except 1, 2, 4, 8, and 16 is introduced, and the starting CCE positions of the PDCCHs of at least two aggregation levels are the same.

[0165] The aggregation levels of the PDCCH include aggregation levels except a second aggregation level, and the starting CCE positions of the PDCCHs of at least two aggregation levels are the same; the second aggregation level is K, K ∈ {1, 2, 4, 8, 16}.

[0166] The physical downlink shared channel resource configuration method provided by the embodiment of the application determines the resources available for PDSCH transmission in the CORESET of the PDCCH, transmits PDSCH information, and avoids aggregation level ambiguity.

[0167] Optionally, Figure 9 As shown in the eighth PDSCH resource configuration principle diagram provided by the embodiment of the application, Figure 9 In the case of non-interleaving and different starting CCEs, even if a new PDCCH aggregation level is introduced, the existing resource mapping rule can be used for mapping.

[0168] Optionally, Figure 10 As shown in the ninth PDSCH resource configuration principle diagram provided by the embodiment of the application, Figure 10 By predefining different starting CCE positions of PDCCHs of different aggregation levels, PDCCHs of different aggregation levels are distinguished.

[0169] For example, the CCEs of AL=8 and AL=16 have different starting positions to distinguish PDCCHs of aggregation level 8 and aggregation level 16.

[0170] Optionally, Figure 11 As shown in the tenth PDSCH resource configuration principle diagram provided by the embodiment of the application, Figure 11 In the interleaved PDCCH, the existing resource mapping rule can be used for mapping.

[0171] Figure 12 The PDSCH resource determination method provided by the embodiment of the application, Figure 12 As shown in the PDSCH resource determination method provided by the embodiment of the application, the execution subject of the method can be a terminal, such as a mobile phone.

[0172] Step 1201, the terminal determines the resources available for PDSCH transmission in the control resource set (CORESET) of the physical downlink control channel (PDCCH).

[0173] Specifically, since the Redcap UE does not have enough transceiver antenna numbers, in order to guarantee the communication quality, the PDCCH will introduce more aggregation levels (Aggregation Level, AL).

[0174] After introducing a new aggregation level, since the number of aggregation levels involving the same starting point ambiguity phenomenon increases, the existing protocol cannot provide a more perfect solution.

[0175] In the embodiment of the present application, the terminal determines the resource available for PDSCH transmission in the CORESET of the PDCCH, and performs PDSCH transmission, so as to avoid the problem of aggregation level ambiguity.

[0176] For example, the terminal can determine the resource available for PDSCH transmission in the CORESET of the PDCCH by receiving the configuration information sent by the network side device.

[0177] For another example, the network side device and the terminal can respectively determine the resource available for PDSCH transmission in the CORESET of the PDCCH in a protocol agreed manner.

[0178] After the terminal determines the resource available for PDSCH transmission in the CORESET of the PDCCH, the terminal receives PDSCH information through the resource of PDSCH transmission.

[0179] The method for determining the resource of the physical downlink shared channel provided in the embodiment of the present application determines the resource available for PDSCH transmission in the CORESET of the PDCCH, and performs PDSCH information transmission, so as to avoid the problem of aggregation level ambiguity.

[0180] Optionally, the determining the resource available for PDSCH transmission in the CORESET of the PDCCH comprises:

[0181] Determining the resource of the CORESET of the PDCCH except the resource corresponding to the first aggregation level for PDSCH transmission;

[0182] The first aggregation level is determined by at least one of the following manners:

[0183] The first aggregation level is the maximum value in the aggregation levels configured in the common search space;

[0184] The first aggregation level is a preset reference PDCCH aggregation level;

[0185] The aggregation levels of the PDCCH include aggregation levels except the second aggregation level, and the positions of the starting CCEs of the PDCCH of the at least two aggregation levels are the same; the second aggregation level is K, K∈{1, 2, 4, 8, 16}.

[0186] Specifically, in the embodiment of the present application, in the case that a new aggregation level except 1, 2, 4, 8, 16 is introduced, and the positions of the starting CCEs of the PDCCH of the at least two aggregation levels are the same, the resource of the CORESET of the PDCCH except the resource corresponding to the first aggregation level is determined for PDSCH transmission.

[0187] The first aggregation level is determined by at least one of the following:

[0188] The first aggregation level is the maximum value among the aggregation levels configured in the common search space.

[0189] The first aggregation level is a preset reference PDCCH aggregation level.

[0190] As shown in the following, Figure 2 resources in the CORESET of the PDCCH other than the resources corresponding to the maximum aggregation level configured in the common search space are determined to be used for PDSCH transmission.

[0191] Once the PDCCH aggregation level blindly detected by the terminal is lower than the maximum PDCCH aggregation level, the PDCCH resources are reserved according to the maximum PDCCH aggregation level, and the remaining resources are used for PDSCH transmission.

[0192] For example, new aggregation levels of 6, 12, 24, and 32 are introduced, and the maximum value among the aggregation levels configured in the common search space is 32. At this time, resources in the CORESET of the PDCCH other than the resources corresponding to the aggregation level 32 are determined to be used for PDSCH transmission.

[0193] As shown in the following, Figure 3 resources in the CORESET of the PDCCH other than the resources corresponding to the preset reference PDCCH aggregation level are determined to be used for PDSCH transmission.

[0194] Once the PDCCH aggregation level blindly detected by the terminal is lower than the preset reference PDCCH aggregation level, the PDCCH resources are reserved according to the preset reference PDCCH aggregation level, and the remaining resources are used for PDSCH transmission.

[0195] The preset reference PDCCH aggregation level can be configured according to actual needs. For example, it is configured as 32, or configured as 24.

[0196] For example, new aggregation levels of 6, 12, 24, and 32 are introduced, and the preset reference PDCCH aggregation level is 32. Resources in the CORESET of the PDCCH other than the resources corresponding to the aggregation level 32 are determined to be used for PDSCH transmission.

[0197] For another example, new aggregation levels of 6, 12, 24, and 32 are introduced, and the preset reference PDCCH aggregation level is 24. Resources in the CORESET of the PDCCH other than the resources corresponding to the aggregation level 24 are determined to be used for PDSCH transmission.

[0198] The physical downlink shared channel resource determination method provided in the embodiments of the present application determines the resources in the CORESET of the PDCCH that can be used for PDSCH transmission, determines the resources in the CORESET of the PDCCH other than the resources corresponding to the preset and / or maximum aggregation level for PDSCH transmission, and further avoids aggregation level ambiguity.

[0199] Optionally, the determining the resources in the CORESET of the PDCCH that can be used for PDSCH transmission comprises at least one of the following:

[0200] determining the resources in the CORESET of the PDCCH other than the resources corresponding to the first aggregation level for PDSCH transmission;

[0201] determining symbols other than the symbols occupied by the CORESET of the PDCCH for PDSCH transmission;

[0202] The first aggregation level is determined in at least one of the following ways:

[0203] The first aggregation level is a reference PDCCH aggregation level configured by a higher layer;

[0204] The first aggregation level is an aggregation level determined by the total number of CCEs in the CORESET of the PDCCH;

[0205] The aggregation levels of the PDCCH include aggregation levels other than a second aggregation level, and the starting CCE positions of the PDCCH of the at least two aggregation levels are the same; the second aggregation level is K, K∈{1, 2, 4, 8, 16}.

[0206] Specifically, the embodiments of the present application are directed to the case where a new aggregation level other than 1, 2, 4, 8, and 16 is introduced, and the starting CCE positions of the PDCCH of the at least two aggregation levels are the same, and the resources in the CORESET of the PDCCH other than the resources corresponding to the first aggregation level are determined for PDSCH transmission.

[0207] and / or determining symbols other than the symbols occupied by the CORESET of the PDCCH for PDSCH transmission.

[0208] The first aggregation level is determined in at least one of the following ways:

[0209] The first aggregation level is a reference PDCCH aggregation level configured by a higher layer;

[0210] The first aggregation level is an aggregation level determined by the total number of CCEs in the CORESET of the PDCCH.

[0211] As Figure 4As shown, resources in the PDCCH CORESET other than those corresponding to the aggregation level configured in the higher layers are used for PDSCH transmission.

[0212] If the PDCCH aggregation level detected by the terminal is lower than the reference PDCCH aggregation level configured by the higher layer, PDCCH resources are reserved according to the reference PDCCH aggregation level configured by the higher layer, and the remaining resources are used for PDSCH transmission.

[0213] The aggregation level in the higher-level configuration can be set according to actual needs. For example, it can be configured based on the capabilities of the terminal or based on channel quality.

[0214] For example, new aggregation levels 6, 12, 24, and 32 have been introduced. If the higher layer is configured with aggregation level 32, then resources in the PDCCH CORESET other than those corresponding to aggregation level 32 will be used for PDSCH transmission.

[0215] For example, if aggregation levels 6, 12, 24, and 32 are newly introduced, and the higher layer is configured with aggregation level 24, then the resources in the PDCCH CORESET other than those corresponding to aggregation level 24 are determined to be used for PDSCH transmission.

[0216] like Figure 5 As shown, resources in the PDCCH CORESET other than those corresponding to the aggregation level determined by the total number of CCEs in the PDCCH CORESET are used for PDSCH transmission. The aggregation level value is determined by the total number of CCEs in the CORESET (rate matching is performed on the entire CORESET).

[0217] If the PDCCH aggregation level detected by the terminal is lower than the aggregation level determined by the total number of CCEs in the PDCCH CORESET, then PDCCH resources are reserved according to the aggregation level determined by the total number of CCEs in the PDCCH CORESET, and the remaining resources are used for PDSCH transmission.

[0218] The method for determining the aggregation level based on the total number of CCEs in the PDCCH CORESET can be set according to actual needs. For example, the total number of CCEs in the CORESET can be equal to the aggregation level, or the total number of CCEs in the CORESET can be twice the aggregation level.

[0219] For example, if the total number of CCEs in the CORESET is 32, then the resources in the CORESET of PDCCH, excluding the resources corresponding to aggregation level 32, are determined to be used for PDSCH transmission.

[0220] For another example, if the total number of CCEs in the CORESET is 24, then the resources in the CORESET of the PDCCH other than the resources corresponding to the aggregation level 24 are determined to be used for PDSCH transmission.

[0221] As shown in FIG. 6, the symbols other than the symbols occupied by the CORESET of the PDCCH are determined to be used for PDSCH transmission. Figure 6

[0222] For example, the aggregation level of the PDCCH is determined according to the number of CCEs in the CORESET, and the mapping is started from the symbols other than the CORESET. Once the PDCCH aggregation level blindly detected by the user is lower than the PDCCH aggregation level, the PDCCH resources are reserved according to the symbols occupied by the CORESET of the PDCCH, and the symbols other than the symbols occupied by the CORESET of the PDCCH are determined to be used for PDSCH transmission.

[0223] The physical downlink shared channel resource determination method provided by the embodiments of the present application determines the resources in the CORESET of the PDCCH that can be used for PDSCH transmission, determines the resources in the CORESET of the PDCCH other than the resources corresponding to the aggregation level configured by the higher layer and / or determined according to the number of CCEs in the CORESET to be used for PDSCH transmission, and further avoids the ambiguity of the aggregation level.

[0224] Optionally, the aggregation levels in the common search space of the PDCCH include X, Y and Z;

[0225] The number of candidate positions of the PDCCH with the aggregation level X is A;

[0226] The number of candidate positions of the PDCCH with the aggregation level Y is B;

[0227] The number of candidate positions of the PDCCH with the aggregation level Z is C;

[0228] And the following conditions are met:

[0229] a, X∈{4, 8, 12, 16}; Y∈{8, 12, 16, 24}; Z∈{12, 16, 24, 32}; X≠Y≠Z;

[0230] b, A, B and C are positive integers;

[0231] c, AX+BY+CZ≤C_total;

[0232] Wherein, C_total is the maximum number of CCEs supported by the terminal;

[0233] ​The aggregation levels of the PDCCH include aggregation levels other than a second aggregation level, and the second aggregation level is K, K∈{1, 2, 4, 8, 16}.

[0234] Specifically, the embodiments of the present application are directed to the case that new aggregation levels other than 1, 2, 4, 8, 16 are introduced, and the configuration mode of the aggregation levels in the common search space is as follows:

[0235] The aggregation levels in the common search space include X, Y and Z;

[0236] The number of candidate positions of the PDCCH with the aggregation level X is A;

[0237] The number of candidate positions of the PDCCH with the aggregation level Y is B;

[0238] The number of candidate positions of the PDCCH with the aggregation level Z is C;

[0239] And the following conditions are met:

[0240] a, X∈{4, 8, 12, 16}; Y∈{8, 12, 16, 24}; Z∈{12, 16, 24, 32}; X≠Y≠Z;

[0241] b, A, B and C are positive integers;

[0242] c, AX+BY+CZ≤C_total;

[0243] Wherein, C_total is the maximum number of CCEs supported by the terminal. Different subcarrier spacings (SCSs) may have different C_total values.

[0244] Optionally, the newly introduced aggregation levels can also have the same resource mapping rule as the original aggregation levels.

[0245] The physical downlink shared channel resource determination method provided by the embodiments of the present application further avoids aggregation level ambiguity by determining the configuration mode of the aggregation levels in the common search space.

[0246] Optionally, the method further includes at least one of the following:

[0247] The aggregation levels of the PDCCH include aggregation levels other than a second aggregation level, and the second aggregation level is K, K∈{1, 2, 4, 8, 16};

[0248] The resource mapping mode of the PDCCH is a non-interleaved mode;

[0249] The maximum aggregation level configured in the common search space is greater than 8;

[0250] The number of CORESET symbols of the PDCCH is greater than or equal to 4;

[0251] The PDCCH is transmitted in multiple CORESET bundles;

[0252] The PDCCH is transmitted on multiple consecutive symbols in a CORESET bundle.

[0253] Specifically, the conditions used in the above scheme of the embodiments of the present application can include at least one of the following:

[0254] The aggregation level of the PDCCH includes aggregation levels other than a second aggregation level; the second aggregation level is K, K∈{1,2,4,8,16};

[0255] The resource mapping mode of the PDCCH is a non-interleaved mode;

[0256] The maximum aggregation level configured in the common search space is greater than 8;

[0257] The number of CORESET symbols of the PDCCH is greater than or equal to 4;

[0258] The PDCCH is transmitted in multiple CORESET bundles (CORESET bundle);

[0259] The PDCCH is transmitted on multiple consecutive symbols in a CORESET bundle.

[0260] Optionally, the multiple CORESETs in the CORESET bundle are transmitted on consecutive symbols.

[0261] The physical downlink shared channel resource determination method provided by the embodiments of the present application determines the resources available for PDSCH transmission in the CORESET of the PDCCH, and transmits PDSCH information, thereby avoiding aggregation level ambiguity.

[0262] Optionally, before determining the resources available for PDSCH transmission in the CORESET of the PDCCH, the method further includes:

[0263] The terminal sends terminal capability information to the network side device;

[0264] The terminal capability information includes at least one of the following:

[0265] The aggregation level supported by the terminal;

[0266] The maximum number of symbols contained in the PDCCH supported by the terminal;

[0267] Whether the terminal supports the CORESET bundle.

[0268] Specifically, before determining the resources in the CORESET of the PDCCH available for PDSCH transmission, the terminal can also send terminal capability information to the network side device.

[0269] The network side device can assist in determining the first aggregation level according to the terminal capability information.

[0270] The terminal capability information includes at least one of the following:

[0271] The aggregation level supported by the terminal;

[0272] The maximum number of symbols contained in the PDCCH supported by the terminal;

[0273] Whether the terminal supports CORESET bundling.

[0274] The physical downlink shared channel resource determination method provided by the embodiments of the present application further avoids aggregation level ambiguity by sending terminal capability information to the network side device and performing PDSCH information transmission according to terminal capability.

[0275] Optionally, the determining the resources in the CORESET of the PDCCH available for PDSCH transmission comprises:

[0276] Determining the resources in the CORESET of the PDCCH except for the resources corresponding to a third aggregation level for PDSCH transmission;

[0277] The third aggregation level is a PDCCH aggregation level blindly detected by the terminal, and the downlink control information DCI sent in the PDCCH of the third aggregation level contains first identification information; the first identification information is used to indicate the third aggregation level.

[0278] Specifically, in the embodiments of the present application, different aggregation levels of PDCCH are distinguished by identification information, and the resources in the CORESET of the PDCCH except for the resources corresponding to a third aggregation level are determined for PDSCH transmission.

[0279] The third aggregation level is a PDCCH aggregation level blindly detected by the terminal, and the downlink control information DCI sent in the PDCCH of the third aggregation level contains first identification information; the first identification information is used to indicate the third aggregation level.

[0280] The physical downlink shared channel resource determination method provided by the embodiments of the present application distinguishes different aggregation levels of PDCCH by identification information, performs PDSCH information transmission, avoids aggregation level ambiguity, reduces resource waste, and improves spectrum utilization.

[0281] Optionally, the first identification information is a padding bit.

[0282] Specifically, as shown in Figure 7 In the embodiment of the application, the PDCCHs of different aggregation levels are distinguished by padding bits.

[0283] The coding rate of the DCI for polar coding is higher than 1 / 8 by adding padding bits in the DCI, so as to solve the ambiguity of the aggregation level.

[0284] The physical downlink shared channel resource determination method provided by the embodiment of the application distinguishes the PDCCHs of different aggregation levels by padding bits, and transmits the PDSCH information, which avoids the ambiguity of the aggregation level, reduces resource waste, and improves the spectrum utilization rate.

[0285] Optionally, the resources available for PDSCH transmission in the CORESET of the PDCCH include:

[0286] The resources in the CORESET of the PDCCH except the resources corresponding to the third aggregation level are determined to be used for PDSCH transmission.

[0287] The third aggregation level is the PDCCH aggregation level blindly detected by the terminal, and the scrambling sequence of the PDCCH of the third aggregation level is used to indicate the third aggregation level.

[0288] Specifically, as shown in Figure 8 In the embodiment of the application, the PDCCHs of different aggregation levels are distinguished by scrambling sequences.

[0289] The resources in the CORESET of the PDCCH except the resources corresponding to the third aggregation level are determined to be used for PDSCH transmission.

[0290] The third aggregation level is the PDCCH aggregation level blindly detected by the terminal, and the scrambling sequence of the PDCCH of the third aggregation level is used to indicate the third aggregation level.

[0291] The scrambling sequence of the PDCCH is generated by introducing an ID related to the aggregation level, so that the current aggregation level can be directly detected when blind detection is performed, so as to avoid the generation of the ambiguity of the aggregation level.

[0292] The physical downlink shared channel resource determination method provided by the embodiment of the application distinguishes the PDCCHs of different aggregation levels by scrambling sequences, and transmits the PDSCH information, which avoids the ambiguity of the aggregation level, reduces resource waste, and improves the spectrum utilization rate.

[0293] Optionally, the aggregation levels of the PDCCH include aggregation levels other than a second aggregation level, and the starting CCE positions of the PDCCH of the at least two aggregation levels are the same; the second aggregation level is K, K ∈ {1, 2, 4, 8, 16}.

[0294] Specifically, the embodiments of the present application are directed to a case where aggregation levels other than 1, 2, 4, 8, and 16 are newly introduced, and the starting CCE positions of the PDCCH of the at least two aggregation levels are the same.

[0295] The aggregation levels of the PDCCH include aggregation levels other than a second aggregation level, and the starting CCE positions of the PDCCH of the at least two aggregation levels are the same; the second aggregation level is K, K ∈ {1, 2, 4, 8, 16}.

[0296] The physical downlink shared channel resource determination method provided by the embodiments of the present application determines the resources available for PDSCH transmission in the CORESET of the PDCCH, transmits PDSCH information, and avoids aggregation level ambiguity.

[0297] Figure 13a As shown in FIG. 13, the embodiments of the present application provide a PDSCH resource configuration device, which includes a first determination module 1301. Figure 13a As shown in FIG. 13, the embodiments of the present application provide a PDSCH resource configuration device, which includes a first determination module 1301.

[0298] The first determination module 1301 is configured to determine the resources available for PDSCH transmission in the CORESET of the PDCCH.

[0299] Optionally, the first determination module 1301 includes a first configuration sub-module. Figure 13b As shown in FIG. 13, the embodiments of the present application provide a PDSCH resource configuration device, which includes a first determination module 1301 and a sending module 1302. Figure 13b As shown in FIG. 13, the embodiments of the present application provide a PDSCH resource configuration device, which includes a first determination module 1301 and a sending module 1302.

[0300] The first determination module 1301 is configured to determine the resources available for PDSCH transmission in the CORESET of the PDCCH. The sending module 1302 is configured to send PDSCH information through the resources available for PDSCH transmission.

[0301] Optionally, the first determination module 1301 includes a first configuration sub-module.

[0302] The first configuration sub-module is configured to configure the resources in the CORESET of the PDCCH other than the resources corresponding to a first aggregation level for PDSCH transmission.

[0303] The first aggregation level is determined by at least one of the following manners:

[0304] The first aggregation level is the maximum value among the aggregation levels configured in the common search space;

[0305] The first aggregation level is a preset reference PDCCH aggregation level;

[0306] The aggregation levels of the PDCCH include aggregation levels other than a second aggregation level, and the starting CCE positions of the PDCCHs of the at least two aggregation levels are the same; the second aggregation level is K, K ∈ {1, 2, 4, 8, 16}.

[0307] Optionally, the first determining module includes at least one of the following:

[0308] The second configuration submodule is configured to configure resources other than resources corresponding to the first aggregation level in the CORESET of the PDCCH to be used for PDSCH transmission;

[0309] The first aggregation level is determined by at least one of the following manners:

[0310] The first aggregation level is a reference PDCCH aggregation level configured by a higher layer;

[0311] The first aggregation level is an aggregation level determined by the total number of CCEs in the CORESET of the PDCCH;

[0312] The aggregation levels of the PDCCH include aggregation levels other than a second aggregation level, and the starting CCE positions of the PDCCHs of the at least two aggregation levels are the same; the second aggregation level is K, K ∈ {1, 2, 4, 8, 16};

[0313] The third configuration submodule is configured to configure symbols other than symbols occupied by the CORESET of the PDCCH to be used for PDSCH transmission.

[0314] Optionally, the aggregation levels in the common search space of the PDCCH include X, Y and Z;

[0315] The number of candidate positions of the PDCCH with the aggregation level X is A;

[0316] The number of candidate positions of the PDCCH with the aggregation level Y is B;

[0317] The number of candidate positions of the PDCCH with the aggregation level Z is C;

[0318] And the following conditions are met:

[0319] a, X∈{4, 8, 12, 16}; Y∈{8, 12, 16, 24}; Z∈{12, 16, 24, 32}; X≠Y≠Z;

[0320] b, A, B and C are all positive integers;

[0321] c, AX+BY+CZ≤C_total;

[0322] wherein, C_total is the maximum number of CCEs supported by the terminal;

[0323] The aggregation level of the PDCCH includes an aggregation level other than a second aggregation level, and the second aggregation level is K, K∈{1, 2, 4, 8, 16}.

[0324] Optionally, the apparatus further comprises at least one of the following:

[0325] The aggregation level of the PDCCH includes an aggregation level other than a second aggregation level, and the second aggregation level is K, K∈{1, 2, 4, 8, 16}.

[0326] The resource mapping mode of the PDCCH is a non-interleaved mode;

[0327] The maximum aggregation level configured in the common search space is greater than 8;

[0328] The number of CORESET symbols of the PDCCH is greater than or equal to 4;

[0329] The PDCCH is transmitted in multiple CORESET bundles;

[0330] The PDCCH is transmitted on multiple consecutive symbols in a CORESET bundle.

[0331] Optionally, the apparatus further comprises a first receiving module;

[0332] The first receiving module is configured to receive terminal capability information sent by the terminal;

[0333] The terminal capability information comprises at least one of the following:

[0334] The aggregation level supported by the terminal;

[0335] The maximum number of symbols contained in the PDCCH supported by the terminal;

[0336] Whether the terminal supports the CORESET bundle.

[0337] Optionally, the first determining module comprises a fourth configuration sub-module;

[0338] The fourth configuration sub-module is configured to configure resources in a CORESET of the PDCCH, except for resources corresponding to the third aggregation level, to be used for PDSCH transmission.

[0339] The third aggregation level is a PDCCH aggregation level blindly detected by the terminal, and downlink control information DCI transmitted in the PDCCH of the third aggregation level contains first identification information; the first identification information is used to indicate the third aggregation level.

[0340] Optionally, the first identification information is a padding bit.

[0341] Optionally, the first determination module includes a fifth configuration sub-module.

[0342] The fifth configuration sub-module is configured to configure resources in a CORESET of the PDCCH, except for resources corresponding to the third aggregation level, to be used for PDSCH transmission.

[0343] The third aggregation level is a PDCCH aggregation level blindly detected by the terminal, and a scrambling sequence of the PDCCH of the third aggregation level is used to indicate the third aggregation level.

[0344] Optionally, the aggregation levels of the PDCCH include aggregation levels other than a second aggregation level, and starting CCE positions of PDCCHs of at least two aggregation levels are the same; the second aggregation level is K, K∈{1, 2, 4, 8, 16}.

[0345] Specifically, the above PDSCH resource configuration device provided by the embodiment of the present application can realize all the method steps realized by the method embodiment of the above execution subject being a network side device, and can achieve the same technical effects. Here, the same parts and beneficial effects in the method embodiment will not be described in detail.

[0346] Figure 14a As shown in FIG. 1, the embodiment of the present application provides a PDSCH resource determination device. Figure 14a As shown in FIG. 1, the embodiment of the present application provides a PDSCH resource determination device, which includes a second determination module 1401.

[0347] The second determination module 1401 is configured to determine resources in a control resource set CORESET of a physical downlink control channel PDCCH that can be used for PDSCH transmission.

[0348] Optionally, Figure 14b As shown in FIG. 1, the embodiment of the present application provides a PDSCH resource determination device. Figure 14b As shown in FIG. 1, the embodiment of the present application provides a PDSCH resource determination device, which includes a second determination module 1401 and a receiving module 1402.

[0349] The second determining module 1401 is configured to determine resources in a control resource set (CORESET) of a physical downlink control channel (PDCCH) that can be used for PDSCH transmission. The receiving module 1402 is configured to receive PDSCH information through the resources used for PDSCH transmission.

[0350] Optionally, the second determining module includes a first determining sub-module.

[0351] The first determining sub-module is configured to determine that resources in the CORESET of the PDCCH except for resources corresponding to a first aggregation level are used for PDSCH transmission.

[0352] The first aggregation level is determined in at least one of the following manners:

[0353] The first aggregation level is the maximum value in aggregation levels configured in a common search space.

[0354] The first aggregation level is a preset reference PDCCH aggregation level.

[0355] The aggregation levels of the PDCCH include aggregation levels except for a second aggregation level, and starting CCE positions of PDCCHs of at least two aggregation levels are the same; the second aggregation level is K, K ∈ {1, 2, 4, 8, 16}.

[0356] Optionally, the second determining module includes at least one of the following:

[0357] The second determining sub-module is configured to determine that resources in the CORESET of the PDCCH except for resources corresponding to a first aggregation level are used for PDSCH transmission.

[0358] The first aggregation level is determined in at least one of the following manners:

[0359] The first aggregation level is a reference PDCCH aggregation level configured by a higher layer.

[0360] The first aggregation level is an aggregation level determined by a total number of CCEs in the CORESET of the PDCCH.

[0361] The aggregation levels of the PDCCH include aggregation levels except for a second aggregation level, and starting CCE positions of PDCCHs of at least two aggregation levels are the same; the second aggregation level is K, K ∈ {1, 2, 4, 8, 16}.

[0362] The third determining sub-module is configured to determine that symbols other than symbols occupied by the CORESET of the PDCCH are used for PDSCH transmission.

[0363] Optionally, the aggregation levels in the common search space of the PDCCH include X, Y and Z;

[0364] The number of candidate positions of the PDCCH with the aggregation level X is A;

[0365] The number of candidate positions of the PDCCH with the aggregation level Y is B;

[0366] The number of candidate positions of the PDCCH with the aggregation level Z is C;

[0367] And the following conditions are met:

[0368] a, X∈{4,8,12,16}; Y∈{8,12,16,24}; Z∈{12,16,24,32}; X≠Y≠Z;

[0369] b, A, B and C are positive integers;

[0370] c, AX+BY+CZ≤C_total;

[0371] Wherein, C_total is the maximum number of CCEs supported by the terminal;

[0372] The aggregation levels of the PDCCH include aggregation levels other than a second aggregation level, and the second aggregation level is K, K∈{1,2,4,8,16}.

[0373] Optionally, the apparatus further comprises at least one of the following:

[0374] The aggregation levels of the PDCCH include aggregation levels other than a second aggregation level, and the second aggregation level is K, K∈{1,2,4,8,16};

[0375] The resource mapping mode of the PDCCH is a non-interleaved mode;

[0376] The maximum aggregation level configured in the common search space is greater than 8;

[0377] The number of CORESET symbols of the PDCCH is greater than or equal to 4;

[0378] The PDCCH is transmitted in multiple CORESET bundles;

[0379] The PDCCH is transmitted on multiple consecutive symbols in a CORESET bundle.

[0380] Optionally, the apparatus further comprises a first sending module;

[0381] The first sending module is configured to send terminal capability information to a network side device;

[0382] The terminal capability information comprises at least one of:

[0383] An aggregation level supported by the terminal;

[0384] A maximum number of symbols contained in a PDCCH supported by the terminal;

[0385] Whether the terminal supports a CORESET bundle.

[0386] Optionally, the second determining module comprises a fourth determining sub-module;

[0387] The fourth determining sub-module is configured to determine that resources other than resources corresponding to a third aggregation level in a CORESET of the PDCCH are used for PDSCH transmission.

[0388] The third aggregation level is a PDCCH aggregation level blindly detected by the terminal, and downlink control information (DCI) transmitted in the PDCCH of the third aggregation level comprises first identification information; the first identification information is used to indicate the third aggregation level.

[0389] Optionally, the first identification information is a padding bit.

[0390] Optionally, the second determining module comprises a fifth determining sub-module;

[0391] The fifth determining sub-module is configured to determine that resources other than resources corresponding to a third aggregation level in a CORESET of the PDCCH are used for PDSCH transmission.

[0392] The third aggregation level is a PDCCH aggregation level blindly detected by the terminal, and a scrambling sequence of the PDCCH of the third aggregation level is used to indicate the third aggregation level.

[0393] Optionally, the aggregation levels of the PDCCH comprise aggregation levels other than a second aggregation level, and starting CCE positions of PDCCHs of at least two aggregation levels are the same; the second aggregation level is K, K∈{1, 2, 4, 8, 16}.

[0394] Specifically, the above PDSCH resource determining apparatus provided by the embodiments of the present application can realize all the method steps realized by the above method embodiments with the terminal as the execution subject, and achieve the same technical effects. Here, the same parts and beneficial effects of the embodiments as the method embodiments will not be described in detail.

[0395] The PDSCH resource determination device in this application embodiment can be a device, or a component, integrated circuit, or chip in a terminal. The device can be a mobile terminal or a non-mobile terminal. For example, a mobile terminal can include, but is not limited to, the types of terminal 11 listed above, while a non-mobile terminal can be a server, network attached storage (NAS), personal computer (PC), television (TV), ATM, or self-service machine, etc. This application embodiment does not impose specific limitations.

[0396] The PDSCH resource determination device in this application embodiment can be a device with an operating system. This operating system can be Android, iOS, or other possible operating systems; this application embodiment does not specifically limit it.

[0397] Figure 15 This is a schematic diagram of the hardware structure of the network-side device provided in the embodiments of this application, such as... Figure 15 As shown, the network device 1500 includes: an antenna 1501, a radio frequency (RF) device 1502, and a baseband device 1503. The antenna 1501 is connected to the RF device 1502. In the uplink direction, the RF device 1502 receives information through the antenna 1501 and transmits the received information to the baseband device 1503 for processing. In the downlink direction, the baseband device 1503 processes the information to be transmitted and sends it to the RF device 1502. The RF device 1502 processes the received information and transmits it through the antenna 1501.

[0398] The aforementioned frequency band processing device can be located in the baseband device 1503. The method executed by the network-side device in the above embodiments can be implemented in the baseband device 1503, which includes a processor 1504 and a memory 1505.

[0399] The baseband device 1503 may, for example, include at least one baseband board on which multiple chips are disposed, such as... Figure 15 As shown, one of the chips, for example, is a processor 1504, which is connected to a memory 1505 to call the program in the memory 1505 and execute the network device operation shown in the above method embodiment.

[0400] The baseband device 1503 may also include a network interface 1506 for exchanging information with the radio frequency device 1502, such as a common public radio interface (CPRI).

[0401] Specifically, the network side device of the embodiment of the present application further comprises instructions or programs stored on the memory 1505 and executable on the processor 1504, and the processor 1504 invokes the instructions or programs in the memory 1505 to execute the following method steps:

[0402] determining resources in a control resource set (CORESET) of a physical downlink control channel (PDCCH) that are available for PDSCH transmission.

[0403] Optionally, the determining the resources in the CORESET of the PDCCH that are available for PDSCH transmission comprises:

[0404] configuring resources in the CORESET of the PDCCH other than resources corresponding to a first aggregation level for PDSCH transmission;

[0405] The first aggregation level is determined in at least one of the following ways:

[0406] The first aggregation level is the maximum value among aggregation levels configured in a common search space;

[0407] The first aggregation level is a preset reference PDCCH aggregation level;

[0408] The aggregation levels of the PDCCH include aggregation levels other than a second aggregation level, and the positions of starting CCEs of the PDCCH of the at least two aggregation levels are the same; the second aggregation level is K, K ∈ {1, 2, 4, 8, 16}.

[0409] Optionally, the determining the resources in the CORESET of the PDCCH that are available for PDSCH transmission comprises at least one of the following:

[0410] configuring resources in the CORESET of the PDCCH other than resources corresponding to a first aggregation level for PDSCH transmission;

[0411] configuring symbols other than symbols occupied by the CORESET of the PDCCH for PDSCH transmission;

[0412] The first aggregation level is determined in at least one of the following ways:

[0413] The first aggregation level is a reference PDCCH aggregation level configured by a higher layer;

[0414] The first aggregation level is an aggregation level determined by a total number of CCEs in the CORESET of the PDCCH;

[0415] The aggregation levels of the PDCCH include aggregation levels other than a second aggregation level, and the starting CCE positions of the PDCCH of the at least two aggregation levels are the same; the second aggregation level is K, K∈{1, 2, 4, 8, 16}.

[0416] Optionally, the aggregation levels in the common search space of the PDCCH include X, Y, and Z;

[0417] The number of candidate positions of the PDCCH of the aggregation level X is A;

[0418] The number of candidate positions of the PDCCH of the aggregation level Y is B;

[0419] The number of candidate positions of the PDCCH of the aggregation level Z is C;

[0420] And the following conditions are met:

[0421] a, X∈{4, 8, 12, 16}; Y∈{8, 12, 16, 24}; Z∈{12, 16, 24, 32}; X≠Y≠Z;

[0422] b, A, B, and C are positive integers;

[0423] c, AX+BY+CZ≤C_total;

[0424] Wherein, C_total is the maximum number of CCEs supported by the terminal;

[0425] The aggregation levels of the PDCCH include aggregation levels other than a second aggregation level, and the starting CCE positions of the PDCCH of the at least two aggregation levels are the same; the second aggregation level is K, K∈{1, 2, 4, 8, 16}.

[0426] Optionally, the method further includes at least one of the following:

[0427] The aggregation levels of the PDCCH include aggregation levels other than a second aggregation level; the second aggregation level is K, K∈{1, 2, 4, 8, 16};

[0428] The resource mapping mode of the PDCCH is a non-interleaved mode;

[0429] The maximum aggregation level configured in the common search space set is greater than 8;

[0430] The number of CORESET symbols of the PDCCH is greater than or equal to 4;

[0431] The PDCCH is transmitted in multiple CORESET bundles;

[0432] The PDCCH is transmitted on multiple consecutive symbols in the CORESET bundle.

[0433] Optionally, before the determining the resources in the CORESET of the PDCCH available for the PDSCH transmission, the method further comprises:

[0434] The network-side device receives terminal capability information sent by the terminal.

[0435] The terminal capability information comprises at least one of the following:

[0436] An aggregation level supported by the terminal.

[0437] A maximum number of symbols contained in a PDCCH supported by the terminal.

[0438] Whether the terminal supports a CORESET bundle.

[0439] Optionally, the determining the resources in the CORESET of the PDCCH available for the PDSCH transmission comprises:

[0440] Configuring resources in the CORESET of the PDCCH other than resources corresponding to a third aggregation level for PDSCH transmission.

[0441] The third aggregation level is a PDCCH aggregation level blindly detected by the terminal, and downlink control information (DCI) sent in the PDCCH of the third aggregation level contains first identification information; the first identification information is used to indicate the third aggregation level.

[0442] Optionally, the first identification information is a padding bit.

[0443] Optionally, the determining the resources in the CORESET of the PDCCH available for the PDSCH transmission comprises:

[0444] Configuring resources in the CORESET of the PDCCH other than resources corresponding to a third aggregation level for PDSCH transmission.

[0445] The third aggregation level is a PDCCH aggregation level blindly detected by the terminal, and a scrambling sequence of the PDCCH of the third aggregation level is used to indicate the third aggregation level.

[0446] Optionally, the aggregation levels of the PDCCH include aggregation levels other than a second aggregation level, and the positions of starting CCEs of PDCCHs of at least two aggregation levels are the same; the second aggregation level is K, K∈{1, 2, 4, 8, 16}.

[0447] It should be noted that the network side device provided by the embodiments of the present application can realize all the method steps achieved by the method embodiments, and achieve the same technical effects. Therefore, the same parts and beneficial effects of the method embodiments will not be described in detail.

[0448] Figure 16 The hardware structure diagram of the terminal provided by the embodiments of the present application is shown in FIG. 16, which includes but is not limited to a radio frequency unit 1601, a network module 1602, an audio output unit 1603, an input unit 1604, a sensor 1605, a display unit 1606, a user input unit 1607, an interface unit 1608, a memory 1609, and a processor 1610, etc. Figure 16

[0449] Those skilled in the art can understand that the terminal 1600 can also include a power supply (such as a battery) for powering each component, and the power supply can be logically connected to the processor 1610 through a power management system, so as to realize the functions of managing charging, discharging, and power consumption management through the power management system. Figure 16 It should be understood that the terminal structure shown in FIG. 16 does not constitute a limitation on the terminal, and the terminal can include more or fewer components than those shown, or combine certain components, or different component arrangements, which will not be described here.

[0450] It should be understood that in the embodiments of the present application, the input unit 1604 can include a graphics processing unit (GPU) 16041 and a microphone 16042. The graphics processing unit 16041 processes image data of still pictures or videos obtained by an image capture device (such as a camera) in a video capture mode or an image capture mode. The display unit 1606 can include a display panel 16061, which can be configured in the form of a liquid crystal display, an organic light-emitting diode, etc. The user input unit 1607 includes a touch panel 16071 and other input devices 16072. The touch panel 16071 is also called a touch screen. The touch panel 16071 can include a touch detection device and a touch controller. The other input devices 16072 can include but are not limited to a physical keyboard, function keys (such as volume control keys, on-off keys, etc.), trackballs, mice, joysticks, etc., which will not be described here.

[0451] In the embodiments of the present application, the radio frequency unit 1601 receives the downlink data from the network side device and processes it for the processor 1610. In addition, it sends the uplink data to the network side device. Generally, the radio frequency unit 1601 includes but is not limited to an antenna, at least one amplifier, a transceiver, a coupler, a low noise amplifier, a duplexer, etc.

[0452] ​The memory 1609 can be used to store software programs or instructions and various data. The memory 1609 can mainly include a storage program or instruction area and a storage data area, wherein the storage program or instruction area can store an operating system, application programs or instructions required by at least one function (such as a sound playing function, an image playing function, etc.), etc. In addition, the memory 1609 can include a high-speed random access memory, and can also include a non-volatile memory, which can be a read-only memory (Read-Only Memory, ROM), a programmable read-only memory (Programmable ROM, PROM), an erasable programmable read-only memory (Erasable PROM, EPROM), an electrically erasable programmable read-only memory (Electrically EPROM, EEPROM) or a flash memory. For example, at least one magnetic disk storage device, a flash memory device, or other non-volatile solid-state memory device.

[0453] The processor 1610 can include one or more processing units; optionally, the processor 1610 can integrate an application processor and a modem processor, wherein the application processor mainly processes an operating system, a user interface and application programs or instructions, etc., and the modem processor mainly processes wireless communication, such as a baseband processor. It can be understood that the above-mentioned modem processor can also not be integrated into the processor 1610.

[0454] The processor 1610 is configured to determine resources in a control resource set (CORESET) of a physical downlink control channel (PDCCH) that can be used for PDSCH transmission.

[0455] Optionally, the determining the resources in the CORESET of the PDCCH that can be used for PDSCH transmission comprises:

[0456] Determining resources in the CORESET of the PDCCH except for resources corresponding to a first aggregation level for PDSCH transmission;

[0457] The first aggregation level is determined by at least one of the following ways:

[0458] The first aggregation level is the maximum value in the aggregation levels configured in the common search space;

[0459] The first aggregation level is a preset reference PDCCH aggregation level;

[0460] The aggregation levels of the PDCCH include aggregation levels except for a second aggregation level, and the positions of the starting CCEs of the PDCCH of the at least two aggregation levels are the same; the second aggregation level is K, K ∈ {1, 2, 4, 8, 16}.

[0461] Optionally, the determining the resources available for PDSCH transmission in the CORESET of the PDCCH comprises at least one of:

[0462] determining that the resources in the CORESET of the PDCCH other than the resources corresponding to the first aggregation level are used for PDSCH transmission;

[0463] determining that the symbols other than the symbols occupied by the CORESET of the PDCCH are used for PDSCH transmission;

[0464] the first aggregation level is determined in at least one of the following manners:

[0465] the first aggregation level is a reference PDCCH aggregation level configured by a higher layer;

[0466] the first aggregation level is an aggregation level determined by the total number of CCEs in the CORESET of the PDCCH;

[0467] the aggregation levels of the PDCCH include aggregation levels other than a second aggregation level, and the starting CCE positions of the PDCCHs of the at least two aggregation levels are the same; the second aggregation level is K, K ∈ {1, 2, 4, 8, 16}.

[0468] Optionally, the aggregation levels in the common search space of the PDCCH include X, Y and Z;

[0469] the number of candidate positions of the PDCCH with the aggregation level X is A;

[0470] the number of candidate positions of the PDCCH with the aggregation level Y is B;

[0471] the number of candidate positions of the PDCCH with the aggregation level Z is C;

[0472] and the following conditions are met:

[0473] a, X ∈ {4, 8, 12, 16}; Y ∈ {8, 12, 16, 24}; Z ∈ {12, 16, 24, 32}; X ≠ Y ≠ Z;

[0474] b, A, B and C are all positive integers;

[0475] c, AX+BY+CZ≤C_total;

[0476] wherein C_total is the maximum number of CCEs supported by the terminal;

[0477] the aggregation levels of the PDCCH include aggregation levels other than a second aggregation level, and the second aggregation level is K, K ∈ {1, 2, 4, 8, 16}.

[0478] Optionally, the method further comprises at least one of the following:

[0479] The aggregation level of the PDCCH comprises an aggregation level other than a second aggregation level; the second aggregation level is K, K∈{1, 2, 4, 8, 16};

[0480] The resource mapping mode of the PDCCH is a non-interleaved mode;

[0481] The maximum aggregation level configured in the common search space set is greater than 8;

[0482] The number of CORESET symbols of the PDCCH is greater than or equal to 4;

[0483] The PDCCH is transmitted in multiple CORESET bundles;

[0484] The PDCCH is transmitted on multiple consecutive symbols in a CORESET bundle.

[0485] Optionally, before determining the resources in the CORESET of the PDCCH that can be used for PDSCH transmission, the method further comprises:

[0486] The terminal sends terminal capability information to the network side device;

[0487] The terminal capability information comprises at least one of the following:

[0488] The aggregation level supported by the terminal;

[0489] The maximum number of symbols contained in the PDCCH supported by the terminal;

[0490] Whether the terminal supports the CORESET bundle.

[0491] Optionally, the determining the resources in the CORESET of the PDCCH that can be used for PDSCH transmission comprises:

[0492] Determining that the resources in the CORESET of the PDCCH other than the resources corresponding to a third aggregation level are used for PDSCH transmission;

[0493] The third aggregation level is the PDCCH aggregation level blindly detected by the terminal, and the downlink control information DCI sent in the PDCCH of the third aggregation level contains first identification information; the first identification information is used to indicate the third aggregation level.

[0494] Optionally, the first identification information is a padding bit.

[0495] Optionally, the determining the resources in the CORESET of the PDCCH that can be used for PDSCH transmission comprises:

[0496] determining that resources other than resources corresponding to the third aggregation level in the CORESET of the PDCCH are used for PDSCH transmission;

[0497] The third aggregation level is a PDCCH aggregation level blindly detected by the terminal, and a scrambling sequence of the PDCCH of the third aggregation level is used to indicate the third aggregation level.

[0498] Optionally, the aggregation levels of the PDCCH include aggregation levels other than a second aggregation level, and the positions of the starting CCEs of the PDCCHs of the at least two aggregation levels are the same; the second aggregation level is K, K∈{1, 2, 4, 8, 16}.

[0499] It should be noted that the terminal provided by the above embodiments of the present application can implement all the method steps achieved by the above method embodiments, and achieve the same technical effects. Therefore, the same parts and beneficial effects of the method embodiments will not be described in detail.

[0500] The embodiments of the present application also provide a readable storage medium, which stores programs or instructions, and the programs or instructions are executed by a processor to implement various processes of the above PDSCH resource configuration or PDSCH resource determination method embodiments, and achieve the same technical effects. To avoid repetition, the same will not be described here.

[0501] The processor is the processor in the terminal in the above embodiments. The readable storage medium includes a computer readable storage medium, such as a computer readable memory (Read-Only Memory, ROM), a random access memory (Random Access Memory, RAM), a magnetic disk or an optical disk, etc.

[0502] The embodiments of the present application further provide a chip, which includes a processor and a communication interface, the communication interface and the processor are coupled, and the processor is used to run programs or instructions to implement various processes of the above PDSCH resource configuration or PDSCH resource determination method embodiments, and achieve the same technical effects. To avoid repetition, the same will not be described here.

[0503] It should be understood that the chip mentioned in the embodiments of the present application can also be referred to as a system chip, a system chip, a chip system, or a system on chip, etc.

[0504] It should be noted that, in the present document, the terms "comprises", "comprising", or any other variations thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but can include other elements not expressly listed or inherent to such process, method, article, or apparatus. An element proceeded by "comprises... a" does not, without more constraints, exclude the presence of additional identical elements in the process, method, article, or apparatus that comprises the element. Furthermore, it is to be understood that the method and apparatus of the present application can be carried out by more than one process, method, article, or apparatus either simultaneously, concurrently, or with intervening action that are carried out at the same time, either in a simultaneous fashion or in a fashion that is interleaved in time. For example, the described methods can be performed in a different order from that described, and / or various steps can be combined or omitted, and / or additional steps can be added, without departing from the scope of the described methods. Also, features described with respect to certain examples can be combined in other examples.

[0505] From the above description of the embodiments, it is apparent that the above-mentioned method can be realized by means of software and necessary universal hardware platform, of course, it can also be realized by hardware, but in many cases, the former is a better embodiment. Based on such understanding, the technical solution of the present application can be embodied in the form of software product, which is stored in a storage medium (such as ROM / RAM, magnetic disk, optical disk), and includes a plurality of instructions for making a terminal (which can be a mobile phone, computer, server, or network device, etc.) execute the method described in each embodiment of the present application.

[0506] The embodiments of the present application are described above in conjunction with the accompanying drawings, but the present application is not limited to the above-described specific embodiments, and the above-described specific embodiments are merely illustrative, rather than limiting, and a person of ordinary skill in the art can make many forms under the inspiration of the present application without departing from the scope of the present application and the scope protected by the claims.

Claims

1. A method for determining a physical downlink shared channel (PDSCH) resource, characterized in that, Comprising: A terminal determines resources in a control resource set (CORESET) of a physical downlink control channel (PDCCH) that can be used for PDSCH transmission; Before the determination of the resources in the CORESET of the PDCCH that can be used for PDSCH transmission, further comprising: The terminal sends terminal capability information to a network side device; The terminal capability information comprises at least one of: An aggregation level supported by the terminal; A maximum number of symbols contained in a PDCCH supported by the terminal; Whether the terminal supports CORESET bundling; The determination of the resources in the CORESET of the PDCCH that can be used for PDSCH transmission comprises: Determining that resources in the CORESET of the PDCCH other than resources corresponding to a third aggregation level are used for PDSCH transmission; The third aggregation level is an aggregation level of a PDCCH blindly detected by the terminal, and a scrambling sequence of the PDCCH of the third aggregation level is used to indicate the third aggregation level.

2. The method of claim 1, wherein, The determination of the resources in the CORESET of the PDCCH that can be used for PDSCH transmission further comprises: Determining that resources in the CORESET of the PDCCH other than resources corresponding to a first aggregation level are used for PDSCH transmission; The first aggregation level is determined in at least one of the following ways: The first aggregation level is the maximum value in the aggregation levels configured in the common search space; The first aggregation level is a preset reference PDCCH aggregation level; The aggregation levels of the PDCCH include aggregation levels other than a second aggregation level, and the starting CCE positions of PDCCHs of at least two aggregation levels are the same; the second aggregation level is K, K∈{1,2,4,8,16}.

3. The method of claim 1, wherein, The determination of the resources in the CORESET of the PDCCH that can be used for PDSCH transmission further comprises at least one of the following: Determining that resources in the CORESET of the PDCCH other than resources corresponding to a first aggregation level are used for PDSCH transmission; Determining that symbols other than symbols occupied by the CORESET of the PDCCH are used for PDSCH transmission; The first aggregation level is determined in at least one of the following ways: The first aggregation level is a reference PDCCH aggregation level configured by a higher layer; The first aggregation level is an aggregation level determined by the total number of CCEs in the CORESET of the PDCCH; The aggregation levels of the PDCCH include aggregation levels other than a second aggregation level, and the starting CCE positions of PDCCHs of at least two aggregation levels are the same; the second aggregation level is K, K∈{1,2,4,8,16}.

4. The method of claim 1, wherein, The aggregation levels in the common search space of the PDCCH include X, Y and Z; The number of candidate positions of PDCCHs of aggregation level X is A; The number of candidate positions of PDCCHs of aggregation level Y is B; The number of candidate positions of PDCCHs of aggregation level Z is C; And the following conditions are met: a、X∈{4,8,12,16};Y∈{8,12,16,24};Z∈{12,16,24,32};X≠Y≠Z; b、A、B and C are positive integers; c. AX+BY+CZ≤C_total; wherein C_total is a maximum number of CCEs supported by the terminal; the aggregation level of the PDCCH comprises an aggregation level other than a second aggregation level, and the second aggregation level is K, K∈{1,2,4,8,16}.

5. The method of claim 1, wherein, The method further comprises at least one of the following: the aggregation level of the PDCCH comprises an aggregation level other than a second aggregation level; the second aggregation level is K, K∈{1,2,4,8,16}; the resource mapping mode of the PDCCH is a non-interleaved mode; the maximum aggregation level configured in the common search space is greater than 8; the number of CORESET symbols of the PDCCH is greater than or equal to 4; the PDCCH is transmitted in multiple CORESET bundles; the PDCCH is transmitted on multiple consecutive symbols in a CORESET bundle.

6. The method of claim 1, wherein, The determination of the resources in the CORESET of the PDCCH available for PDSCH transmission further comprises: determining that the resources in the CORESET of the PDCCH other than the resources corresponding to a third aggregation level are used for PDSCH transmission; the third aggregation level is the PDCCH aggregation level blindly detected by the terminal, and the downlink control information DCI transmitted in the PDCCH of the third aggregation level contains first identification information; the first identification information is used to indicate the third aggregation level.

7. The method of claim 6, wherein, The first identification information is a padding bit.

8. The method of Claim 1, 6, or 7, wherein, The aggregation level of the PDCCH comprises an aggregation level other than a second aggregation level, and the starting CCE positions of the PDCCH of at least two aggregation levels are the same; the second aggregation level is K, K∈{1,2,4,8,16}.

9. A method for configuring Physical Downlink Shared Channel (PDSCH) resources, characterized in that, It comprises: a network side device determines the resources in the control resource set CORESET of the physical downlink control channel PDCCH available for PDSCH transmission; Before determining the resources in the CORESET of the PDCCH available for PDSCH transmission, the network side device further comprises: receiving terminal capability information sent by a terminal; The terminal capability information comprises at least one of the following: aggregation levels supported by the terminal; the maximum number of symbols contained in the PDCCH supported by the terminal; whether the terminal supports CORESET bundles; The determination of the resources in the CORESET of the PDCCH available for PDSCH transmission comprises: configuring the resources in the CORESET of the PDCCH other than the resources corresponding to a third aggregation level for PDSCH transmission; the third aggregation level is the PDCCH aggregation level blindly detected by the terminal, and the scrambling sequence of the PDCCH of the third aggregation level is used to indicate the third aggregation level.

10. The PDSCH resource configuration method of claim 9, wherein, The determination of the resources in the CORESET of the PDCCH available for PDSCH transmission further comprises: configuring the resources in the CORESET of the PDCCH other than the resources corresponding to a first aggregation level for PDSCH transmission; The first aggregation level is determined by at least one of the following: the first aggregation level is the maximum value in the aggregation levels configured in the common search space; The first aggregation level is a preset reference PDCCH aggregation level. The aggregation levels of the PDCCH include aggregation levels other than a second aggregation level, and the starting CCEs of the PDCCHs of at least two aggregation levels are the same; the second aggregation level is K, K ∈ {1, 2, 4, 8, 16}.

11. The PDSCH resource configuration method of claim 9, wherein, The determining the resources available for PDSCH transmission in the CORESET of the PDCCH further includes at least one of the following: resources other than the resources corresponding to the first aggregation level in the CORESET of the PDCCH are configured for PDSCH transmission; symbols other than the symbols occupied by the CORESET of the PDCCH are configured for PDSCH transmission. The first aggregation level is determined in at least one of the following ways: The first aggregation level is a reference PDCCH aggregation level configured by a higher layer; The first aggregation level is an aggregation level determined by the total number of CCEs in the CORESET of the PDCCH. The aggregation levels of the PDCCH include aggregation levels other than a second aggregation level, and the starting CCEs of the PDCCHs of at least two aggregation levels are the same; the second aggregation level is K, K ∈ {1, 2, 4, 8, 16}.

12. The PDSCH resource configuration method of claim 9, wherein, The aggregation levels in the common search space of the PDCCH include X, Y and Z; The number of candidate positions of the PDCCH with an aggregation level of X is A; The number of candidate positions of the PDCCH with an aggregation level of Y is B; The number of candidate positions of the PDCCH with an aggregation level of Z is C; And the following conditions are met: a, X ∈ {4, 8, 12, 16}; Y ∈ {8, 12, 16, 24}; Z ∈ {12, 16, 24, 32}; X ≠ Y ≠ Z; b, A, B and C are positive integers; c, AX+BY+CZ≤C_total; Where C_total is the maximum number of CCEs supported by the terminal; The aggregation levels of the PDCCH include aggregation levels other than a second aggregation level, and the second aggregation level is K, K ∈ {1, 2, 4, 8, 16}.

13. The PDSCH resource configuration method of claim 9, wherein, The method further includes at least one of the following: The aggregation levels of the PDCCH include aggregation levels other than a second aggregation level; the second aggregation level is K, K ∈ {1, 2, 4, 8, 16}; The resource mapping mode of the PDCCH is a non-interleaved mode; The maximum aggregation level configured in the common search space set is greater than 8; The number of CORESET symbols of the PDCCH is greater than or equal to 4; The PDCCH is transmitted in multiple CORESET bundles; The PDCCH is transmitted on multiple consecutive symbols in a CORESET bundle.

14. The PDSCH resource configuration method of claim 9, wherein, The determining the resources available for PDSCH transmission in the CORESET of the PDCCH further includes: resources other than the resources corresponding to the third aggregation level in the CORESET of the PDCCH are configured for PDSCH transmission; The third aggregation level is a PDCCH aggregation level blindly detected by the terminal, and downlink control information (DCI) transmitted in the PDCCH of the third aggregation level contains first identification information; the first identification information is used to indicate the third aggregation level.

15. The PDSCH resource configuration method of claim 14, wherein, The first identification information is a padding bit.

16. The PDSCH resource configuration method of any of claims 9, 14-15, wherein, The aggregation levels of the PDCCH include aggregation levels other than a second aggregation level, and the starting CCE positions of the PDCCHs of at least two aggregation levels are the same; the second aggregation level is K, K ∈ {1, 2, 4, 8, 16}.

17. A physical downlink shared channel (PDSCH) resource configuration apparatus, comprising: a PDSCH resource configuration module configured to configure a PDSCH resource. Comprise: A first determining module configured to determine resources available for PDSCH transmission in a control resource set (CORESET) of a physical downlink control channel (PDCCH); The apparatus further comprises a first receiving module; The first receiving module is configured to receive terminal capability information sent by a terminal; The terminal capability information comprises at least one of the following: Aggregation levels supported by the terminal; A maximum number of symbols contained in a PDCCH supported by the terminal; Whether the terminal supports a CORESET bundle; The first determining module comprises a fifth configuration submodule; The fifth configuration submodule is configured to configure resources other than resources corresponding to a third aggregation level in a CORESET of the PDCCH for PDSCH transmission; The third aggregation level is a PDCCH aggregation level blindly detected by the terminal, and a scrambling sequence of the PDCCH of the third aggregation level is used to indicate the third aggregation level.

18. The PDSCH resource configuration apparatus of claim 17, wherein, The first determining module comprises a first configuration submodule; The first configuration submodule is configured to configure resources other than resources corresponding to a first aggregation level in a CORESET of the PDCCH for PDSCH transmission; The first aggregation level is determined in at least one of the following ways: The first aggregation level is a maximum value in configured aggregation levels in a common search space; The first aggregation level is a preset reference PDCCH aggregation level; The aggregation levels of the PDCCH include aggregation levels other than a second aggregation level, and the starting CCE positions of the PDCCHs of at least two aggregation levels are the same; the second aggregation level is K, K ∈ {1, 2, 4, 8, 16}.

19. The PDSCH resource configuration apparatus of claim 17, wherein, The first determining module comprises at least one of the following: A second configuration submodule configured to configure resources other than resources corresponding to a first aggregation level in a CORESET of the PDCCH for PDSCH transmission; The first aggregation level is determined in at least one of the following ways: The first aggregation level is a reference PDCCH aggregation level configured by a higher layer; The first aggregation level is an aggregation level determined by a total number of CCEs in a CORESET of the PDCCH; The aggregation levels of the PDCCH include aggregation levels other than a second aggregation level, and the starting CCE positions of the PDCCHs of at least two aggregation levels are the same; the second aggregation level is K, K ∈ {1, 2, 4, 8, 16}; A third configuration submodule configured to configure symbols other than symbols occupied by the CORESET of the PDCCH for PDSCH transmission.

20. The PDSCH resource configuration apparatus of claim 17, wherein, The aggregation levels in the common search space of the PDCCH include X, Y and Z; The number of candidate positions of the PDCCH with the aggregation level X is A; The number of candidate positions of the PDCCH with the aggregation level Y is B; The number of candidate positions of the PDCCH with the aggregation level Z is C; And the following conditions are met: a, X∈{4,8,12,16}; Y∈{8,12,16,24}; Z∈{12,16,24,32}; X≠Y≠Z; b, A, B and C are all positive integers; c, AX+BY+CZ≤C_total; Wherein, C_total is the maximum number of CCEs supported by the terminal; The aggregation levels of the PDCCH include aggregation levels other than a second aggregation level, and the second aggregation level is K, K∈{1,2,4,8,16}.

21. The PDSCH resource configuration apparatus of claim 17, wherein, The device further comprises at least one of the following: The aggregation levels of the PDCCH include aggregation levels other than a second aggregation level; the second aggregation level is K, K∈{1,2,4,8,16}; The resource mapping mode of the PDCCH is a non-interleaved mode; The maximum aggregation level configured in the common search space is greater than 8; The number of CORESET symbols of the PDCCH is greater than or equal to 4; The PDCCH is transmitted in multiple CORESET bundles; The PDCCH is transmitted on multiple consecutive symbols in the CORESET bundle.

22. The PDSCH resource configuration apparatus of claim 17, wherein, The first determining module comprises a fourth configuration sub-module; The fourth configuration sub-module is configured to configure resources other than resources corresponding to a third aggregation level in the CORESET of the PDCCH for PDSCH transmission; The third aggregation level is a PDCCH aggregation level blindly detected by the terminal, and the downlink control information (DCI) transmitted in the PDCCH of the third aggregation level contains first identification information; the first identification information is used to indicate the third aggregation level.

23. The PDSCH resource configuration apparatus of claim 22, wherein, The first identification information is a padding bit. 24.The PDSCH resource configuration apparatus of any of claims 17, 22-23, wherein, The aggregation levels of the PDCCH include aggregation levels other than a second aggregation level, and the starting CCE positions of PDCCHs of at least two aggregation levels are the same; the second aggregation level is K, K∈{1,2,4,8,16}.

25. A physical downlink shared channel (PDSCH) resource determination apparatus, comprising: a PDSCH resource determination module, configured to determine a PDSCH resource according to a PDSCH resource determination rule. It comprises: A second determining module is configured to determine resources in a control resource set (CORESET) of a physical downlink control channel (PDCCH) that can be used for PDSCH transmission; The device further comprises a first sending module; The first sending module is configured to send terminal capability information to a network side device; The terminal capability information comprises at least one of the following: Aggregation levels supported by the terminal; The maximum number of symbols contained in the PDCCH supported by the terminal; Whether the terminal supports the CORESET bundle; The second determining module comprises a fifth determining sub-module; The fifth determining sub-module is configured to determine resources other than resources corresponding to a third aggregation level in the CORESET of the PDCCH for PDSCH transmission; The third aggregation level is a PDCCH aggregation level blindly detected by the terminal, and the scrambling sequence of the PDCCH of the third aggregation level is used to indicate the third aggregation level.

26. The PDSCH resource determination apparatus of claim 25, wherein, The second determining module comprises a first determining submodule; The first determining submodule is configured to determine that resources other than resources corresponding to a first aggregation level in a CORESET of the PDCCH are used for PDSCH transmission; The first aggregation level is determined by at least one of the following manners: The first aggregation level is a maximum value in aggregation levels configured in a common search space; The first aggregation level is a preset reference PDCCH aggregation level; The aggregation levels of the PDCCH comprise aggregation levels other than a second aggregation level, and starting CCE positions of PDCCHs of at least two aggregation levels are the same; the second aggregation level is K, K ∈ {1, 2, 4, 8, 16}.

27. The PDSCH resource determination apparatus of claim 25, wherein, The second determining module comprises at least one of the following: The second determining submodule is configured to determine that resources other than resources corresponding to a first aggregation level in a CORESET of the PDCCH are used for PDSCH transmission; The first aggregation level is determined by at least one of the following manners: The first aggregation level is a reference PDCCH aggregation level configured by a higher layer; The first aggregation level is an aggregation level determined by a total number of CCEs in a CORESET of the PDCCH; The aggregation levels of the PDCCH comprise aggregation levels other than a second aggregation level, and starting CCE positions of PDCCHs of at least two aggregation levels are the same; the second aggregation level is K, K ∈ {1, 2, 4, 8, 16}; The third determining submodule is configured to determine that symbols other than symbols occupied by the CORESET of the PDCCH are used for PDSCH transmission.

28. The PDSCH resource determination apparatus of claim 25, wherein, The aggregation levels in the common search space of the PDCCH comprise X, Y and Z; A number of candidate positions of the PDCCH with the aggregation level X is A; A number of candidate positions of the PDCCH with the aggregation level Y is B; A number of candidate positions of the PDCCH with the aggregation level Z is C; And the following conditions are met: a, X ∈ {4, 8, 12, 16}; Y ∈ {8, 12, 16, 24}; Z ∈ {12, 16, 24, 32}; X ≠ Y ≠ Z; b, A, B and C are positive integers; c, AX+BY+CZ≤C_total; Wherein, C_total is a maximum number of CCEs supported by a terminal; The aggregation levels of the PDCCH comprise aggregation levels other than a second aggregation level, and the second aggregation level is K, K ∈ {1, 2, 4, 8, 16}.

29. The PDSCH resource determination apparatus of claim 25, wherein, The apparatus further comprises at least one of the following: The aggregation levels of the PDCCH comprise aggregation levels other than a second aggregation level; the second aggregation level is K, K ∈ {1, 2, 4, 8, 16}; The resource mapping mode of the PDCCH is a non-interleaved mode; A maximum aggregation level configured in the common search space is greater than 8; A number of CORESET symbols of the PDCCH is greater than or equal to 4; The PDCCH is transmitted in multiple CORESET bundles; The PDCCH is transmitted on multiple continuous symbols in a CORESET bundle.

30. The PDSCH resource determination apparatus of claim 25, wherein, The second determining module comprises a fourth determining submodule; The fourth determination sub-module is configured to determine that resources other than resources corresponding to the third aggregation level in a CORESET of the PDCCH are used for PDSCH transmission. The third aggregation level is a PDCCH aggregation level blindly detected by the terminal, and downlink control information (DCI) transmitted in the PDCCH of the third aggregation level contains first identification information; the first identification information is used to indicate the third aggregation level.

31. The PDSCH resource determination apparatus of claim 30, wherein, The first identification information is a padding bit.

32. The PDSCH resource determination apparatus of any of claims 25, 30-31, wherein, The aggregation levels of the PDCCH include aggregation levels other than a second aggregation level, and the positions of starting CCEs of PDCCHs of at least two aggregation levels are the same; the second aggregation level is K, K ∈ {1, 2, 4, 8, 16}.

33. A terminal, characterized by The apparatus comprises a processor, a memory, and a program or instruction stored in the memory and executable on the processor, and the program or instruction is executed by the processor to implement the steps of the PDSCH resource determination method according to any one of claims 1 to 8.

34. A network-side device, comprising: The apparatus comprises a processor, a memory, and a program or instruction stored in the memory and executable on the processor, and the program or instruction is executed by the processor to implement the steps of the PDSCH resource configuration method according to any one of claims 9 to 16.

35. A readable storage medium, characterized by, The program or instruction is stored in the readable storage medium, and the program or instruction is executed by the processor to implement the steps of the PDSCH resource determination method according to any one of claims 1 to 8 or the PDSCH resource configuration method according to any one of claims 9 to 16.

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