WO2022143494A1 - Procédé et appareil de configuration de ressources de canal physique partagé descendant, dispositif et support de stockage - Google Patents

Procédé et appareil de configuration de ressources de canal physique partagé descendant, dispositif et support de stockage Download PDF

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Publication number
WO2022143494A1
WO2022143494A1 PCT/CN2021/141516 CN2021141516W WO2022143494A1 WO 2022143494 A1 WO2022143494 A1 WO 2022143494A1 CN 2021141516 W CN2021141516 W CN 2021141516W WO 2022143494 A1 WO2022143494 A1 WO 2022143494A1
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aggregation level
pdcch
aggregation
coreset
resources
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PCT/CN2021/141516
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English (en)
Chinese (zh)
Inventor
顾一
吴凯
李娜
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维沃移动通信有限公司
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Publication of WO2022143494A1 publication Critical patent/WO2022143494A1/fr

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/20—Control channels or signalling for resource management
    • H04W72/23—Control channels or signalling for resource management in the downlink direction of a wireless link, i.e. towards a terminal
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/04—Wireless resource allocation
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/50—Allocation or scheduling criteria for wireless resources
    • H04W72/53—Allocation or scheduling criteria for wireless resources based on regulatory allocation policies

Definitions

  • the present application belongs to the field of communication technologies, and in particular relates to a physical downlink shared channel resource configuration method, apparatus, device and storage medium.
  • the Physical Downlink Control Channel (PDCCH) will introduce more aggregation levels.
  • a physical downlink shared channel (Physical Downlink Shared Channel, PDSCH) is allowed to transmit by using the unoccupied frequency domain resources on the time domain symbols occupied by the PDCCH.
  • PDSCH Physical Downlink Shared Channel
  • Embodiments of the present application provide a physical downlink shared channel resource configuration method, apparatus, device, and storage medium, which can solve the problem of efficient PDSCH transmission.
  • an embodiment of the present application provides a method for determining PDSCH resources, including:
  • the terminal determines the resources available for PDSCH transmission in the control resource set CORESET of the physical downlink control channel PDCCH.
  • an embodiment of the present application provides a PDSCH resource configuration method, including:
  • the network side device determines the resources available for PDSCH transmission in the control resource set CORESET of the physical downlink control channel PDCCH.
  • an embodiment of the present application provides a PDSCH resource configuration device, including:
  • the first determining module is configured to determine the resources available for PDSCH transmission in the control resource set CORESET of the physical downlink control channel PDCCH.
  • an apparatus for determining PDSCH resources including:
  • the second determining module is configured to determine the resources available for PDSCH transmission in the control resource set CORESET of the physical downlink control channel PDCCH.
  • an embodiment of the present application provides a terminal, including a processor, a memory, and a program or instruction stored in the memory and executable on the processor, the program or instruction being executed by the processor When executed, the steps of the method as described in the first aspect are implemented.
  • an embodiment of the present application provides a network-side device, including a processor, a memory, and a program or instruction stored in the memory and executable on the processor, the program or instruction being The processor implements the steps of the method as described in the second aspect when executed.
  • an embodiment of the present application provides a readable storage medium, where a program or an instruction is stored on the readable storage medium, and when the program or instruction is executed by a processor, the implementation is as described in the first aspect or the second aspect steps of the method.
  • an embodiment of the present application provides a chip, where the chip includes a processor and a communication interface, the communication interface is coupled to the processor, and the processor is configured to run a program or an instruction to implement the first aspect or the method described in the second aspect.
  • a computer program product is provided, the computer program product is stored in a non-volatile storage medium, the computer program product is executed by at least one processor to implement the first aspect or the second aspect. method described.
  • the physical downlink shared channel resource configuration method, device, device, and storage medium provided by the embodiments of the present application perform effective transmission of PDSCH information by determining the resources available for PDSCH transmission in the CORESET of the PDCCH.
  • FIG. 1a shows a block diagram of a wireless communication system to which an embodiment of the present application can be applied
  • FIG. 1 provides a PDSCH resource configuration method according to an embodiment of the present application
  • FIG. 2 is one of schematic diagrams of a PDSCH resource configuration principle provided by an embodiment of the present application
  • FIG. 3 is the second schematic diagram of a PDSCH resource configuration principle provided by an embodiment of the present application.
  • FIG. 4 is the third schematic diagram of the resource configuration principle of the PDSCH provided by the embodiment of the present application.
  • FIG. 5 is a fourth schematic diagram of a PDSCH resource configuration principle provided by an embodiment of the present application.
  • FIG. 6 is a fifth schematic diagram of a PDSCH resource configuration principle provided by an embodiment of the present application.
  • FIG. 7 is a sixth schematic diagram of a PDSCH resource configuration principle provided by an embodiment of the present application.
  • FIG. 8 is a seventh schematic diagram of a PDSCH resource configuration principle provided by an embodiment of the present application.
  • FIG. 9 is an eighth schematic diagram of a PDSCH resource configuration principle provided by an embodiment of the present application.
  • FIG. 10 is the ninth schematic diagram of the resource configuration principle of the PDSCH provided by the embodiment of the present application.
  • FIG. 11 is a tenth schematic diagram of a PDSCH resource configuration principle provided by an embodiment of the present application.
  • FIG. 12 provides a PDSCH resource determination method according to an embodiment of the present application.
  • FIG. 13a is one of the PDSCH resource configuration apparatuses provided by the embodiment of the present application.
  • FIG. 13b is the second PDSCH resource configuration apparatus provided by this embodiment of the application.
  • FIG. 14a is one of the PDSCH resource determination apparatuses provided by the embodiment of the present application.
  • FIG. 14b is the second device for determining PDSCH resources provided by this embodiment of the present application.
  • FIG. 15 is a schematic diagram of a hardware structure of a network side device provided by an embodiment of the present application.
  • FIG. 16 is a schematic diagram of a hardware structure of a terminal provided by an embodiment of the present application.
  • LTE Long Term Evolution
  • LTE-Advanced LTE-Advanced
  • LTE-A Long Term Evolution
  • CDMA Code Division Multiple Access
  • TDMA Time Division Multiple Access
  • FDMA Frequency Division Multiple Access
  • OFDMA Orthogonal Frequency Division Multiple Access
  • SC-FDMA Single-carrier Frequency-Division Multiple Access
  • system and “network” in the embodiments of the present application are often used interchangeably, and the described technology can be used not only for the above-mentioned systems and radio technologies, but also for other systems and radio technologies.
  • NR New Radio
  • 6G most Generation
  • FIG. 1a shows a block diagram of a wireless communication system to which the embodiments of the present application can be applied.
  • the wireless communication system includes a terminal 11 and a network-side device 12 .
  • the terminal 11 may also be called a terminal device or a user terminal (User Equipment, UE), and the terminal 11 may be a mobile phone, a tablet computer (Tablet Personal Computer), a laptop computer (Laptop Computer) or a notebook computer, a personal digital computer Assistant (Personal Digital Assistant, PDA), handheld computer, netbook, ultra-mobile personal computer (ultra-mobile personal computer, UMPC), mobile Internet device (Mobile Internet Device, MID), wearable device (Wearable Device) or vehicle-mounted device (Vehicle User Equipment, VUE), pedestrian terminal (Pedestrian User Equipment, PUE) and other terminal-side devices, wearable devices include: bracelets, headphones, glasses, etc.
  • the network side device 12 may be a base station or a core network, wherein the base station may 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 (Basic Service Set, BSS), Extended Service Set (Extended Service Set, ESS), Node B, Evolved Node B (eNB), Home Node B, Home Evolved Node B, WLAN Access Point, WiFi Node, Send Transmitting Receiving Point (TRP) or some other suitable term in the field, as long as the same technical effect is achieved, the base station is not limited to specific technical terms.
  • the base station in the NR system is taken as an example, but the specific type of the base station is not limited.
  • FIG. 1 provides a PDSCH resource configuration method provided by an embodiment of the present application.
  • an embodiment of the present application provides a PDSCH resource configuration method, the execution subject of which may be a network side device, such as a base station.
  • the method includes:
  • Step 101 The network side device determines the resources available for PDSCH transmission in the control resource set CORESET of the physical downlink control channel PDCCH.
  • the PDCCH will introduce more Aggregation Levels (AL).
  • PDCCHs of different aggregation levels can have the same control channel element (Control Channel Elements, CCE) starting position.
  • CCE Control Channel Elements
  • the network-side device performs PDSCH transmission by determining the resources available for PDSCH transmission in the control resource set (Control Resource Set, CORESET) of the PDCCH, so as to avoid the problem of ambiguity of aggregation levels.
  • control resource set Control Resource Set, CORESET
  • the network side device may notify the terminal of the resources available for PDSCH transmission in the CORESET of the PDCCH by sending configuration information to the terminal.
  • the network-side device and the terminal may respectively determine the resources available for PDSCH transmission in the CORESET of the PDCCH by means of a protocol agreement.
  • the network side device After the network side device determines the resources available for PDSCH transmission in the CORESET of the PDCCH, the PDSCH information is sent through the resources of the PDSCH transmission. And perform rate matching or puncture on resources unavailable in CORESET.
  • the physical downlink shared channel resource configuration method performs PDSCH information transmission by determining the resources available for PDSCH transmission in the CORESET of the PDCCH, thereby avoiding aggregation level ambiguity.
  • the determining of resources available for PDSCH transmission in the CORESET of the PDCCH includes:
  • the first aggregation level is determined in at least one of the following ways:
  • the first aggregation level is the maximum value among the aggregation levels configured in the public search space
  • the first aggregation level is a preset reference PDCCH aggregation level
  • the aggregation levels of the PDCCH include aggregation levels other than the second aggregation level, and the positions of 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 ⁇ .
  • 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 starting CCE positions of the PDCCHs of at least two aggregation levels are the same, configure the CORESET of the PDCCH in the Resources other than the resources corresponding to the 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 among the aggregation levels configured in the public search space
  • the first aggregation level is a preset reference PDCCH aggregation level.
  • FIG. 2 is one of schematic diagrams of the resource configuration principle of PDSCH provided by the embodiment of the present application. As shown in FIG. 2 , resources other than the resources corresponding to the maximum aggregation level configured in the common search space in the CORESET of the PDCCH are configured for PDSCH transmission.
  • PDCCH resources are reserved according to the maximum PDCCH aggregation level, and the remaining resources are used for PDSCH transmission.
  • the maximum value of the aggregation levels configured in the common search space is 32.
  • the resources other than the resources corresponding to the aggregation level 32 in the CORESET where the PDCCH is configured are used for for PDSCH transmission.
  • FIG. 3 is the second schematic diagram of the PDSCH resource configuration principle provided by the embodiment of the present application. As shown in FIG. 3 , resources other than the resources corresponding to the preset reference PDCCH aggregation level in the CORESET of the configuration PDCCH are used for PDSCH transmission.
  • PDCCH resources are reserved according to the preset reference PDCCH aggregation level, and the remaining resources are used for PDSCH transmission.
  • the preset reference PDCCH aggregation level can be configured according to actual needs. For example, configure as 32, or configure as 24.
  • aggregation levels of 6, 12, 24, and 32 are newly introduced, and the preset reference PDCCH aggregation level is 32. Then, resources other than resources corresponding to aggregation level 32 in the CORESET of the PDCCH are configured for PDSCH transmission.
  • aggregation levels of 6, 12, 24, and 32 are newly introduced, and the preset reference PDCCH aggregation level is 24. Then, resources other than the resources corresponding to aggregation level 24 in the CORESET of the PDCCH are configured for PDSCH transmission.
  • the physical downlink shared channel resource configuration method by determining the resources available for PDSCH transmission in the CORESET of the PDCCH, resources other than the resources corresponding to the preset and/or maximum aggregation level in the CORESET of the PDCCH are configured to be used for the PDSCH transmission, further avoiding aggregation level ambiguity.
  • the determining of resources available for PDSCH transmission in the CORESET of the PDCCH includes at least one of the following:
  • 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 the second aggregation level, and the positions of 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 ⁇ .
  • 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 starting CCE positions of the PDCCHs of at least two aggregation levels are the same, configure the CORESET of the PDCCH in the Resources other than the resources corresponding to the first aggregation level are used for PDSCH transmission.
  • And/or PDSCH transmission is performed on symbols other than the symbols occupied by the CORESET of the configuration PDCCH.
  • 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.
  • FIG. 4 is the third schematic diagram of the PDSCH resource configuration principle provided by the embodiment of the present application. As shown in FIG. 4 , the resources other than the resources corresponding to the aggregation level configured by the higher layer in the CORESET configuring the PDCCH are used for PDSCH transmission.
  • 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.
  • the aggregation level of the high-level configuration 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.
  • aggregation levels of 6, 12, 24, and 32 are newly introduced. If the aggregation level 32 is configured by the upper layer, at this time, the resources other than the resources corresponding to the aggregation level 32 in the CORESET in which the PDCCH is configured are used for PDSCH transmission.
  • the aggregation levels of 6, 12, 24, and 32 are newly introduced. If the aggregation level 24 is configured by the upper layer, at this time, the resources other than the resources corresponding to the aggregation level 24 in the CORESET of the PDCCH are configured for PDSCH transmission.
  • FIG. 5 is the fourth schematic diagram of the PDSCH resource configuration principle provided by the embodiment of the present application.
  • the resources other than the resources corresponding to the aggregation level determined by the total number of CCEs in the CORESET of the PDCCH are used for PDSCH transmission.
  • Aggregation level value determined by the total number of CCEs in the CORESET (rate matching the entire CORESET).
  • the PDCCH resources are reserved according to the aggregation level determined by the total number of CCEs in the CORESET of the PDCCH, and the remaining resources are used for PDSCH transmission.
  • the manner of determining the aggregation level by the total number of CCEs in the CORESET of the PDCCH can be set according to actual requirements. 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 2 times the aggregation level.
  • the resources other than the resources corresponding to aggregation level 32 in the CORESET in which the PDCCH is configured are used for PDSCH transmission.
  • the resources other than the resources corresponding to aggregation level 24 in the CORESET in which the PDCCH is configured are used for PDSCH transmission.
  • FIG. 6 is a fifth schematic diagram of a PDSCH resource configuration principle provided by an embodiment of the present application. As shown in FIG. 6 , a symbol other than the symbol occupied by the CORESET of the PDCCH is configured for PDSCH transmission.
  • the PDCCH aggregation level is determined according to the number of CCEs in the CORESET, and mapping is started from symbols outside the CORESET.
  • 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 configured for PDSCH transmission.
  • the aggregation level in the CORESET of the PDCCH other than those configured by the upper layer and/or determined according to the number of CCEs in the CORESET is configured. Resources other than the corresponding resources are used for PDSCH transmission, which further avoids aggregation level ambiguity.
  • 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 aggregation level X is A;
  • the number of candidate positions of the PDCCH with aggregation level Y is B;
  • the number of candidate positions of the PDCCH with aggregation level Z is C;
  • b, A, B and C are all positive integers
  • C_total is the maximum number of CCEs supported by the terminal
  • the aggregation level of the PDCCH includes aggregation levels other than the second aggregation level, where the second aggregation level is K, K ⁇ 1, 2, 4, 8, 16 ⁇ .
  • the configuration of the aggregation levels in the common search space is as follows:
  • Aggregation levels in the common search space include X, Y and Z;
  • the number of candidate positions of the PDCCH with aggregation level X is A;
  • the number of candidate positions of the PDCCH with aggregation level Y is B;
  • the number of candidate positions of the PDCCH with aggregation level Z is C;
  • b, A, B and C are all positive integers
  • C_total is the maximum number of CCEs supported by the terminal. Different subcarrier spacing SCS may have different C_total values.
  • the newly introduced aggregation level may also have the same resource mapping rules as the original aggregation level.
  • the method for configuring the physical downlink shared channel resources provided by the embodiments of the present application further avoids the ambiguity of the aggregation level by determining the configuration method of the aggregation level in the common search space.
  • the method further includes at least one of the following:
  • the aggregation level of the PDCCH includes aggregation levels other than the 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-interleaving mode
  • the maximum aggregation level centrally configured in the public 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.
  • the conditions used by the above solutions in the embodiments of the present application may include at least one of the following:
  • the aggregation level of PDCCH includes aggregation levels other than the second aggregation level; the second aggregation level is K, K ⁇ 1,2,4,8,16 ⁇ ;
  • the resource mapping mode of PDCCH is non-interleaving mode
  • the maximum aggregation level centrally configured in the public search space is greater than 8;
  • the number of CORESET symbols of PDCCH is greater than or equal to 4.
  • PDCCH is transmitted in multiple CORESET bundles
  • the PDCCH is transmitted on multiple consecutive symbols in the CORESET bundle.
  • multiple CORESETs of the PDCCH in the CORESET bundle are transmitted on consecutive symbols.
  • the physical downlink shared channel resource configuration method performs PDSCH information transmission by determining the resources available for PDSCH transmission in the CORESET of the PDCCH, thereby avoiding aggregation level ambiguity.
  • the method before the determining of the resources available for PDSCH transmission in the CORESET of the PDCCH, the method further includes:
  • the network side device receives the terminal capability information sent by the terminal;
  • the terminal capability information includes at least one of the following:
  • the network side device may also receive the terminal capability information sent by the terminal.
  • the network-side device may assist in determining the first aggregation level according to the terminal capability information.
  • the terminal capability information includes at least one of the following:
  • the physical downlink shared channel resource configuration method provided by the embodiments of the present application further avoids aggregation level ambiguity by receiving the terminal capability information sent by the terminal and transmitting PDSCH information according to the terminal capability.
  • the determining of resources available for PDSCH transmission in the CORESET of the PDCCH includes:
  • 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 includes first identification information; the first identification information is used to indicate the first identification information.
  • PDCCHs of different aggregation levels are distinguished by identification information, and 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 the PDCCH aggregation level blindly detected by the terminal, and the downlink control information DCI sent in the PDCCH of the third aggregation level includes first identification information; the first identification information is used to indicate the third aggregation level.
  • the physical downlink shared channel resource configuration method distinguishes PDCCHs of different aggregation levels through identification information, and transmits PDSCH information, which avoids aggregation level ambiguity, reduces resource waste, and improves spectrum utilization.
  • the first identification information is padding bits.
  • FIG. 7 is a sixth schematic diagram of a PDSCH resource configuration principle provided by an embodiment of the present application. As shown in FIG. 7 , in this embodiment of the present application, padding bits are used to distinguish PDCCHs of different aggregation levels.
  • the form of adding padding bits to the DCI can be adopted, so that the coding rate of the polar coding (polar coding) for the DCI is higher than 1/8, so as to solve the ambiguity of the aggregation level.
  • PDCCHs of different aggregation levels are distinguished by Padding bits, and PDSCH information is transmitted, which avoids aggregation level ambiguity, reduces resource waste, and improves spectrum utilization.
  • the determining of resources available for PDSCH transmission in the CORESET of the PDCCH includes:
  • 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.
  • FIG. 8 is a seventh schematic diagram of a PDSCH resource configuration principle provided by an embodiment of the present application.
  • PDCCHs of different aggregation levels are distinguished by scrambling sequences.
  • the 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 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.
  • 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 during blind detection, so as to avoid the generation of the aggregation level ambiguity problem.
  • PDCCHs of different aggregation levels are distinguished by scrambling sequences, and PDSCH information is transmitted, which avoids aggregation level ambiguity, reduces resource waste, and improves spectrum utilization.
  • the aggregation level of the PDCCH includes aggregation levels other than the second aggregation level, and the positions of 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 ⁇ .
  • the embodiments of the present application are directed to the case where aggregation levels other than 1, 2, 4, 8, and 16 are newly introduced, and the positions of the starting CCEs of the PDCCHs of at least two aggregation levels are the same.
  • the aggregation level of PDCCH includes aggregation levels other than the 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 ⁇ .
  • the physical downlink shared channel resource configuration method performs PDSCH information transmission by determining the resources available for PDSCH transmission in the CORESET of the PDCCH, thereby avoiding aggregation level ambiguity.
  • FIG. 9 is the eighth schematic diagram of the PDSCH resource configuration principle provided by the embodiment of the present application.
  • FIG. 9 in the case of non-interleaving and different starting CCEs, even if a new PDCCH aggregation level is introduced, it can be Map according to existing resource mapping rules.
  • FIG. 10 is the ninth schematic diagram of the resource configuration principle of the PDSCH provided by the embodiment of the present application. As shown in FIG. 10 , by predefining the positions of the starting CCEs of the PDCCHs of different aggregation levels are different, different aggregation levels are distinguished. the PDCCH.
  • FIG. 11 is a tenth schematic diagram of a PDSCH resource configuration principle provided by an embodiment of the present application. As shown in FIG. 11 , under the interleaved PDCCH, mapping can be performed according to the existing resource mapping rules.
  • FIG. 12 is a method for determining PDSCH resources provided by an embodiment of the present application. As shown in FIG. 12 , an embodiment of the present application provides a method for determining PDSCH resources, whose execution subject may be a terminal, such as a mobile phone. The method includes:
  • Step 1201 The terminal determines the resources available for PDSCH transmission in the control resource set CORESET of the physical downlink control channel PDCCH.
  • the PDCCH will introduce more Aggregation Levels (AL).
  • the terminal performs PDSCH transmission by determining the resources available for PDSCH transmission in the control resource set (Control Resource Set, CORESET) of the PDCCH, so as to avoid the problem of ambiguity of aggregation levels.
  • control resource set Control Resource Set, CORESET
  • the terminal may determine the resources available for PDSCH transmission in the CORESET of the PDCCH by receiving the configuration information sent by the network side device.
  • the network-side device and the terminal may respectively determine the resources available for PDSCH transmission in the CORESET of the PDCCH by means of a protocol agreement.
  • the terminal After determining the resources available for PDSCH transmission in the CORESET of the PDCCH, the terminal receives PDSCH information through the resources for PDSCH transmission.
  • the method for determining physical downlink shared channel resources transmits PDSCH information by determining the resources available for PDSCH transmission in the CORESET of the PDCCH, thereby avoiding aggregation level ambiguity.
  • the determining of resources available for PDSCH transmission in the CORESET of the PDCCH includes:
  • the first aggregation level is determined in at least one of the following ways:
  • the first aggregation level is the maximum value among the aggregation levels configured in the public search space
  • the first aggregation level is a preset reference PDCCH aggregation level
  • the aggregation levels of the PDCCH include aggregation levels other than the second aggregation level, and the positions of 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 ⁇ .
  • the embodiment of the present application is aimed at the case where aggregation levels other than 1, 2, 4, 8, and 16 are newly introduced, and the starting CCE positions of the PDCCHs of at least two aggregation levels are the same, it is determined that the CORESET of the PDCCH is in the same position.
  • Resources other than the resources corresponding to the 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 among the aggregation levels configured in the public search space
  • the first aggregation level is a preset reference PDCCH aggregation level.
  • resources other than the resources corresponding to the maximum aggregation level configured in the common search space in the CORESET of the PDCCH are determined to be used for PDSCH transmission.
  • PDCCH resources are reserved according to the maximum PDCCH aggregation level, and the remaining resources are used for PDSCH transmission.
  • the maximum value of the aggregation levels configured in the common search space is 32.
  • the resources other than the resources corresponding to the aggregation level 32 in the CORESET of the PDCCH are determined to be used for for PDSCH transmission.
  • resources other than the resources corresponding to the preset reference PDCCH aggregation level in the CORESET of the PDCCH are determined to be used for PDSCH transmission.
  • PDCCH resources are reserved according to the preset reference PDCCH aggregation level, and the remaining resources are used for PDSCH transmission.
  • the preset reference PDCCH aggregation level can be configured according to actual needs. For example, configure as 32, or configure as 24.
  • the preset reference PDCCH aggregation level is 32, it is determined that resources other than the resources corresponding to aggregation level 32 in the CORESET of the PDCCH are used for PDSCH transmission.
  • aggregation levels of 6, 12, 24, and 32 are newly introduced, and the preset reference PDCCH aggregation level is 24. Then, the resources other than the resources corresponding to aggregation level 24 in the CORESET of the PDCCH are determined to be used for PDSCH transmission.
  • the resources other than the resources corresponding to the preset and/or maximum aggregation level in the CORESET of the PDCCH are determined to be used for the PDSCH transmission, further avoiding aggregation level ambiguity.
  • the determining of resources available for PDSCH transmission in the CORESET of the PDCCH includes at least one of the following:
  • 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 the second aggregation level, and the positions of 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 ⁇ .
  • the embodiment of the present application is aimed at the case where aggregation levels other than 1, 2, 4, 8, and 16 are newly introduced, and the starting CCE positions of the PDCCHs of at least two aggregation levels are the same, it is determined that the CORESET of the PDCCH is in the same position.
  • Resources other than the resources corresponding to the 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 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.
  • resources other than the resources corresponding to the aggregation level configured by the higher layer in the CORESET of the PDCCH are determined to be used for PDSCH transmission.
  • 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.
  • the aggregation level of the high-level configuration 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.
  • the aggregation levels of 6, 12, 24, and 32 are newly introduced. If the aggregation level is 32 configured by the upper layer, at this time, the resources other than the resources corresponding to the aggregation level 32 in the CORESET of the PDCCH are determined to be used for PDSCH transmission.
  • the aggregation levels of 6, 12, 24, and 32 are newly introduced. If the aggregation level 24 is configured by the higher layer, at this time, the resources other than the resources corresponding to the aggregation level 24 in the CORESET of the PDCCH are determined to be used for PDSCH transmission.
  • the PDCCH resources are reserved according to the aggregation level determined by the total number of CCEs in the CORESET of the PDCCH, and the remaining resources are used for PDSCH transmission.
  • the manner of determining the aggregation level by the total number of CCEs in the CORESET of the PDCCH can be set according to actual requirements. 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 2 times the aggregation level.
  • the resources in the CORESET of the PDCCH other than the resources corresponding to aggregation level 32 are used for PDSCH transmission.
  • the total number of CCEs in the CORESET is 24, it is determined that resources other than the resources corresponding to aggregation level 24 in the CORESET of the PDCCH are used for PDSCH transmission.
  • the PDCCH aggregation level is determined according to the number of CCEs in the CORESET, and mapping is started from symbols outside the CORESET.
  • PDCCH resources are reserved according to the symbols occupied by the CORESET of the PDCCH, and symbols other than the symbols occupied by the CORESET of the PDCCH are determined for PDSCH transmission.
  • the method for determining physical downlink shared channel resources provided by the embodiments of the present application, by determining the resources available for PDSCH transmission in the CORESET of the PDCCH, to determine the aggregation level in the CORESET of the PDCCH other than those configured by higher layers and/or determined according to the number of CCEs in the CORESET Resources other than the corresponding resources are used for PDSCH transmission, which further avoids aggregation level ambiguity.
  • 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 aggregation level X is A;
  • the number of candidate positions of the PDCCH with aggregation level Y is B;
  • the number of candidate positions of the PDCCH with aggregation level Z is C;
  • b, A, B and C are all positive integers
  • C_total is the maximum number of CCEs supported by the terminal
  • the aggregation level of the PDCCH includes aggregation levels other than the second aggregation level, where the second aggregation level is K, K ⁇ 1, 2, 4, 8, 16 ⁇ .
  • the configuration of the aggregation levels in the common search space is as follows:
  • Aggregation levels in the common search space include X, Y and Z;
  • the number of candidate positions of the PDCCH with aggregation level X is A;
  • the number of candidate positions of the PDCCH with aggregation level Y is B;
  • the number of candidate positions for PDCCH with aggregation level Z is C;
  • b, A, B and C are all positive integers
  • C_total is the maximum number of CCEs supported by the terminal. Different subcarrier spacing SCS may have different C_total values.
  • the newly introduced aggregation level may also have the same resource mapping rules as the original aggregation level.
  • the method for determining the physical downlink shared channel resources provided by the embodiment of the present application further avoids the ambiguity of the aggregation level by determining the configuration mode of the aggregation level in the common search space.
  • the method further includes at least one of the following:
  • the aggregation level of the PDCCH includes aggregation levels other than the 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-interleaving mode
  • the maximum aggregation level centrally configured in the public 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.
  • the conditions used by the above solutions in the embodiments of the present application may include at least one of the following:
  • the aggregation level of PDCCH includes aggregation levels other than the second aggregation level; the second aggregation level is K, K ⁇ 1,2,4,8,16 ⁇ ;
  • the resource mapping mode of PDCCH is non-interleaving mode
  • the maximum aggregation level centrally configured in the public search space is greater than 8;
  • the number of CORESET symbols of PDCCH is greater than or equal to 4.
  • PDCCH is transmitted in multiple CORESET bundles
  • the PDCCH is transmitted on multiple consecutive symbols in the CORESET bundle.
  • multiple CORESETs of the PDCCH in the CORESET bundle are transmitted on consecutive symbols.
  • the method for determining physical downlink shared channel resources transmits PDSCH information by determining the resources available for PDSCH transmission in the CORESET of the PDCCH, thereby avoiding aggregation level ambiguity.
  • the method before the determining of the resources available for PDSCH transmission in the CORESET of the PDCCH, the method further includes:
  • the terminal capability information includes at least one of the following:
  • the terminal may also send the terminal capability information to the network side device.
  • the network-side device may assist in determining the first aggregation level according to the terminal capability information.
  • the terminal capability information includes at least one of the following:
  • the method for determining physical downlink shared channel resources provided by the embodiments of the present application further avoids aggregation level ambiguity by sending terminal capability information to a network side device, and transmitting PDSCH information according to the terminal capability.
  • the determining of resources available for PDSCH transmission in the CORESET of the PDCCH includes:
  • 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 includes first identification information; the first identification information is used to indicate the first identification information.
  • the PDCCHs of different aggregation levels are distinguished by the identification information, and the resources other than the resources corresponding to the third aggregation level in the CORESET of the PDCCH are determined to be used for PDSCH transmission.
  • 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 includes first identification information; the first identification information is used to indicate the third aggregation level.
  • the method for determining physical downlink shared channel resources distinguishes PDCCHs of different aggregation levels through identification information, and transmits PDSCH information, which avoids aggregation level ambiguity, reduces resource waste, and improves spectrum utilization.
  • the first identification information is padding bits.
  • padding bits are used to distinguish PDCCHs of different aggregation levels.
  • the form of adding padding bits to the DCI can be adopted, so that the coding rate of the polar coding (polar coding) for the DCI is higher than 1/8, so as to solve the ambiguity of the aggregation level.
  • the method for determining physical downlink shared channel resources distinguishes PDCCHs of different aggregation levels through Padding bits, and transmits PDSCH information, which avoids aggregation level ambiguity, reduces resource waste, and improves spectrum utilization.
  • the determining of resources available for PDSCH transmission in the CORESET of the PDCCH includes:
  • 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.
  • PDCCHs of different aggregation levels are distinguished by scrambling sequences.
  • 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.
  • 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 during blind detection, so as to avoid the generation of the aggregation level ambiguity problem.
  • the method for determining physical downlink shared channel resources distinguishes PDCCHs of different aggregation levels through a scrambling code sequence, and transmits PDSCH information, which avoids aggregation level ambiguity, reduces resource waste, and improves spectrum utilization.
  • the aggregation level of the PDCCH includes aggregation levels other than the second aggregation level, and the positions of 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 ⁇ .
  • the embodiments of the present application are directed to the case where aggregation levels other than 1, 2, 4, 8, and 16 are newly introduced, and the positions of the starting CCEs of the PDCCHs of at least two aggregation levels are the same.
  • the aggregation level of PDCCH includes aggregation levels other than the 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 ⁇ .
  • the method for determining physical downlink shared channel resources transmits PDSCH information by determining the resources available for PDSCH transmission in the CORESET of the PDCCH, thereby avoiding aggregation level ambiguity.
  • FIG. 13a is one of the PDSCH resource configuration apparatuses provided by an embodiment of the present application. As shown in FIG. 13a, an embodiment of the present application provides a PDSCH resource configuration apparatus, including a first determination module 1301.
  • the first determining module 1301 is configured to determine resources available for PDSCH transmission in the control resource set CORESET of the physical downlink control channel PDCCH.
  • FIG. 13b is the second device for configuring PDSCH resources provided by this embodiment of the application.
  • an embodiment of the present application provides a PDSCH resource configuration device, including a first determining module 1301 and a sending module 1302, where :
  • the first determining module 1301 is configured to determine resources available for PDSCH transmission in the control resource set CORESET of the physical downlink control channel PDCCH.
  • the sending module 1302 is configured to send PDSCH information through PDSCH transmission resources.
  • the first determination module includes a first configuration sub-module
  • the first configuration submodule is configured to configure resources other than the resources corresponding to the first aggregation level in the 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 the maximum value among the aggregation levels configured in the public search space
  • the first aggregation level is a preset reference PDCCH aggregation level
  • the aggregation levels of the PDCCH include aggregation levels other than the second aggregation level, and the positions of 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 ⁇ .
  • the first determining module includes at least one of the following:
  • a second configuration submodule configured to configure resources other than the resources corresponding to the first aggregation level in the 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 the total number of CCEs in the CORESET of the PDCCH;
  • the aggregation levels of the PDCCH include aggregation levels other than the second aggregation level, and the positions of 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 ⁇ ;
  • the third configuration sub-module is configured to perform PDSCH transmission on symbols other than the symbols occupied by the CORESET of the PDCCH.
  • 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 aggregation level X is A;
  • the number of candidate positions of the PDCCH with aggregation level Y is B;
  • the number of candidate positions of the PDCCH with aggregation level Z is C;
  • b, A, B and C are all positive integers
  • C_total is the maximum number of CCEs supported by the terminal
  • the aggregation level of the PDCCH includes aggregation levels other than the second aggregation level, where the second aggregation level is K, K ⁇ 1, 2, 4, 8, 16 ⁇ .
  • the device further includes at least one of the following:
  • the aggregation level of the PDCCH includes aggregation levels other than the 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-interleaving mode
  • the maximum aggregation level centrally configured in the public 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.
  • the apparatus further includes a first receiving module
  • the first receiving module is configured to receive terminal capability information sent by the terminal;
  • the terminal capability information includes at least one of the following:
  • the first determining module includes a fourth configuration sub-module
  • the fourth configuration sub-module is configured to configure resources other than the resources corresponding to the third aggregation level in the CORESET of the PDCCH for PDSCH transmission;
  • 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 includes first identification information; the first identification information is used to indicate the first identification information.
  • the first identification information is padding bits.
  • the first determining module includes a fifth configuration sub-module
  • the fifth configuration submodule is configured to configure resources other than the resources corresponding to the 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.
  • the aggregation level of the PDCCH includes aggregation levels other than the second aggregation level, and the positions of 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 ⁇ .
  • the above-mentioned PDSCH resource configuration apparatus provided in the embodiment of the present application can implement all the method steps implemented by the above-mentioned method embodiment in which the execution subject is a network side device, and can achieve the same technical effect, and this implementation is not repeated here.
  • the same parts and beneficial effects as the method embodiment will be described in detail.
  • FIG. 14a is one of the apparatuses for determining PDSCH resources provided by an embodiment of the present application. As shown in FIG. 14a , an embodiment of the present application provides a device for determining PDSCH resources, including a second determining module 1401 .
  • the second determining module 1401 is configured to determine the resources available for PDSCH transmission in the control resource set CORESET of the physical downlink control channel PDCCH.
  • FIG. 14b is the second device for determining PDSCH resources provided by an embodiment of the present application.
  • an embodiment of the present application provides a device for determining PDSCH resources, including a second determining module 1401 and a receiving module 1402, wherein :
  • the second determining module 1401 is configured to determine the resources available for PDSCH transmission in the control resource set CORESET of the physical downlink control channel PDCCH.
  • the receiving module 1402 is configured to receive PDSCH information through the resources transmitted by the PDSCH.
  • the second determination module includes a first determination submodule
  • the first determination submodule is configured to determine that resources other than the resources corresponding to the first aggregation level in 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 the maximum value among the aggregation levels configured in the public search space
  • the first aggregation level is a preset reference PDCCH aggregation level
  • the aggregation levels of the PDCCH include aggregation levels other than the second aggregation level, and the positions of 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 ⁇ .
  • the second determining module includes at least one of the following:
  • a second determination submodule configured to determine that resources other than the resources corresponding to the first aggregation level in 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 the second aggregation level, and the positions of 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 ⁇ ;
  • the third determination sub-module is configured to determine the symbols other than the symbols occupied by the CORESET of the PDCCH to perform PDSCH transmission.
  • 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 aggregation level X is A;
  • the number of candidate positions of the PDCCH with aggregation level Y is B;
  • the number of candidate positions for PDCCH with aggregation level Z is C;
  • b, A, B and C are all positive integers
  • C_total is the maximum number of CCEs supported by the terminal
  • the aggregation level of the PDCCH includes aggregation levels other than the second aggregation level, where the second aggregation level is K, K ⁇ 1, 2, 4, 8, 16 ⁇ .
  • the device further includes at least one of the following:
  • the aggregation level of the PDCCH includes aggregation levels other than the 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-interleaving mode
  • the maximum aggregation level centrally configured in the public 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.
  • the device further includes a first sending module
  • the first sending module is configured to send terminal capability information to the network side device
  • the terminal capability information includes at least one of the following:
  • the second determination module includes a fourth determination sub-module
  • the fourth determination sub-module is configured to determine that resources other than the resources corresponding to the third aggregation level in the CORESET of the PDCCH 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 sent in the PDCCH of the third aggregation level includes first identification information; the first identification information is used to indicate the first identification information.
  • the first identification information is padding bits.
  • the second determination module includes a fifth determination sub-module
  • the fifth determination sub-module is configured to determine that resources other than the resources corresponding to the third aggregation level in the CORESET of the PDCCH are used 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.
  • the aggregation level of the PDCCH includes aggregation levels other than the second aggregation level, and the positions of 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 ⁇ .
  • the device for determining the PDSCH resource provided in the embodiment of the present application can implement all the method steps implemented by the method embodiment in which the execution subject is the terminal, and can achieve the same technical effect.
  • the same parts and beneficial effects as those in the method embodiment will be described in detail.
  • the apparatus for determining the PDSCH resource in the embodiment of the present application may be an apparatus, and may also be a component, an integrated circuit, or a chip in a terminal.
  • the device may be a mobile terminal or a non-mobile terminal.
  • the mobile terminal may include, but is not limited to, the types of terminals listed above, and the non-mobile terminal may be a server, a network attached storage (Network Attached Storage, NAS), a personal computer (personal computer, PC), a television (television) , TV), teller machine or self-service machine, etc., which are not specifically limited in the embodiments of the present application.
  • Network Attached Storage Network Attached Storage
  • PC personal computer
  • TV television
  • teller machine or self-service machine etc.
  • the device for determining the PDSCH resource in the embodiment of the present application may be a device having an operating system.
  • the operating system may be an Android (Android) operating system, an ios operating system, or other possible operating systems, which are not specifically limited in the embodiments of the present application.
  • FIG. 15 is a schematic diagram of a hardware structure of a network side device provided by an embodiment of the present application.
  • the network device 1500 includes an antenna 1501 , a radio frequency device 1502 , and a baseband device 1503 .
  • the antenna 1501 is connected to the radio frequency device 1502 .
  • the radio frequency device 1502 receives information through the antenna 1501, and sends the received information to the baseband device 1503 for processing.
  • the baseband device 1503 processes the information to be sent and sends it to the radio frequency device 1502
  • the radio frequency device 1502 processes the received information and sends it out through the antenna 1501 .
  • the above-mentioned frequency band processing apparatus may be located in the baseband apparatus 1503 , and the method performed by the network side device in the above embodiments may be implemented in the baseband apparatus 1503 .
  • the baseband apparatus 1503 includes a processor 1504 and a memory 1505 .
  • the baseband device 1503 may include, for example, at least one baseband board on which a plurality of chips are arranged, as shown in FIG. 15 , one of the chips is, for example, the processor 1504 , which is connected to the memory 1505 to call a program in the memory 1505 to execute
  • the network devices shown in the above method embodiments operate.
  • the baseband device 1503 may further include a network interface 1506 for exchanging information with the radio frequency device 1502, and the interface is, for example, a common public radio interface (CPRI for short).
  • CPRI common public radio interface
  • the network side device in the embodiment of the present invention further includes: an instruction or program stored in the memory 1505 and executable on the processor 1504, and the processor 1504 invokes the instruction or program in the memory 1505 to execute the following method steps:
  • the determining of resources available for PDSCH transmission in the CORESET of the PDCCH includes:
  • the first aggregation level is determined in at least one of the following ways:
  • the first aggregation level is the maximum value among the aggregation levels configured in the public search space
  • the first aggregation level is a preset reference PDCCH aggregation level
  • the aggregation levels of the PDCCH include aggregation levels other than the second aggregation level, and the positions of 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 ⁇ .
  • the determining of resources available for PDSCH transmission in the CORESET of the PDCCH includes at least one of the following:
  • 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 the second aggregation level, and the positions of 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 ⁇ .
  • 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 aggregation level X is A;
  • the number of candidate positions of the PDCCH with aggregation level Y is B;
  • the number of candidate positions of the PDCCH with aggregation level Z is C;
  • b, A, B and C are all positive integers
  • C_total is the maximum number of CCEs supported by the terminal
  • the aggregation level of the PDCCH includes aggregation levels other than the second aggregation level, where the second aggregation level is K, K ⁇ 1, 2, 4, 8, 16 ⁇ .
  • the method further includes at least one of the following:
  • the aggregation level of the PDCCH includes aggregation levels other than the 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-interleaving mode
  • the maximum aggregation level centrally configured in the public 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.
  • the method before the determining of the resources available for PDSCH transmission in the CORESET of the PDCCH, the method further includes:
  • the network side device receives the terminal capability information sent by the terminal;
  • the terminal capability information includes at least one of the following:
  • the determining of resources available for PDSCH transmission in the CORESET of the PDCCH includes:
  • 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 includes first identification information; the first identification information is used to indicate the first identification information.
  • the first identification information is padding bits.
  • the determining of resources available for PDSCH transmission in the CORESET of the PDCCH includes:
  • 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.
  • the aggregation level of the PDCCH includes aggregation levels other than the second aggregation level, and the positions of 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 ⁇ .
  • FIG. 16 is a schematic diagram of the hardware structure of a terminal provided by an embodiment of the application.
  • the terminal 1600 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, user input unit 1607, interface unit 1608, memory 1609, and processor 1610 and other components.
  • the terminal 1600 may also include a power source (such as a battery) for supplying power to various components, and the power source may be logically connected to the processor 1610 through a power management system, so as to manage charging, discharging, and power consumption through the power management system management and other functions.
  • a power source such as a battery
  • the terminal structure shown in FIG. 16 does not constitute a limitation on the terminal, and the terminal may include more or less components than shown, or combine some components, or arrange different components, which will not be repeated here.
  • the input unit 1604 may include a graphics processor (Graphics Processing Unit, GPU) 16041 and a microphone 16042. Such as camera) to obtain still pictures or video image data for processing.
  • the display unit 1606 may include a display panel 16061, which may be configured in the form of a liquid crystal display, an organic light emitting diode, or the like.
  • the user input unit 1607 includes a touch panel 16071 and other input devices 16072 . Touch panel 16071, also called touch screen.
  • the touch panel 16071 may include two parts, a touch detection device and a touch controller.
  • Other input devices 16072 may include, but are not limited to, physical keyboards, function keys (such as volume control keys, switch keys, etc.), trackballs, mice, and joysticks, which are not described herein again.
  • the radio frequency unit 1601 receives the downlink data from the network side device, and then processes it to the processor 1610; in addition, sends the uplink data to the network side device.
  • 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, and the like.
  • Memory 1609 may be used to store software programs or instructions as well as various data.
  • the memory 1609 may mainly include a storage program or instruction area and a storage data area, wherein the stored program or instruction area may store an operating system, an application program or instruction required for at least one function (such as a sound playback function, an image playback function, etc.) and the like.
  • the memory 1609 may include a high-speed random access memory, and may also include a non-volatile memory, wherein the non-volatile memory may be a read-only memory (Read-Only Memory, ROM), a programmable read-only memory (Programmable ROM) , PROM), erasable programmable read-only memory (Erasable PROM, EPROM), electrically erasable programmable read-only memory (Electrically EPROM, EEPROM) or flash memory.
  • ROM Read-Only Memory
  • PROM programmable read-only memory
  • PROM erasable programmable read-only memory
  • Erasable PROM Erasable PROM
  • EPROM electrically erasable programmable read-only memory
  • EEPROM electrically erasable programmable read-only memory
  • flash memory for example at least one magnetic disk storage device, flash memory device, or other non-volatile solid state storage device.
  • the processor 1610 may include one or more processing units; optionally, the processor 1610 may integrate an application processor and a modem processor, wherein the application processor mainly processes the operating system, user interface, application programs or instructions, etc., Modem processors mainly deal with wireless communications, such as baseband processors. It can be understood that, the above-mentioned modulation and demodulation processor may not be integrated into the processor 1610.
  • the processor 1610 is configured to determine the resources available for PDSCH transmission in the control resource set CORESET of the physical downlink control channel PDCCH.
  • the determining of resources available for PDSCH transmission in the CORESET of the PDCCH includes:
  • the first aggregation level is determined in at least one of the following ways:
  • the first aggregation level is the maximum value among the aggregation levels configured in the public search space
  • the first aggregation level is a preset reference PDCCH aggregation level
  • the aggregation levels of the PDCCH include aggregation levels other than the second aggregation level, and the positions of 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 ⁇ .
  • the determining of resources available for PDSCH transmission in the CORESET of the PDCCH includes at least one of the following:
  • 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 the second aggregation level, and the positions of 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 ⁇ .
  • 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 aggregation level X is A;
  • the number of candidate positions of the PDCCH with aggregation level Y is B;
  • the number of candidate positions of the PDCCH with aggregation level Z is C;
  • b, A, B and C are all positive integers
  • C_total is the maximum number of CCEs supported by the terminal
  • the aggregation level of the PDCCH includes aggregation levels other than the second aggregation level, where the second aggregation level is K, K ⁇ 1, 2, 4, 8, 16 ⁇ .
  • the method further includes at least one of the following:
  • the aggregation level of the PDCCH includes aggregation levels other than the 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-interleaving mode
  • the maximum aggregation level centrally configured in the public 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.
  • the method before the determining of the resources available for PDSCH transmission in the CORESET of the PDCCH, the method further includes:
  • the terminal capability information includes at least one of the following:
  • the determining of resources available for PDSCH transmission in the CORESET of the PDCCH includes:
  • 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 includes first identification information; the first identification information is used to indicate the first identification information.
  • the first identification information is padding bits.
  • the determining of resources available for PDSCH transmission in the CORESET of the PDCCH includes:
  • 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.
  • the aggregation level of the PDCCH includes aggregation levels other than the second aggregation level, and the positions of 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 ⁇ .
  • An embodiment of the present application further provides a readable storage medium, where a program or an instruction is stored on the readable storage medium, and when the program or instruction is executed by a processor, each process of the foregoing PDSCH resource configuration or PDSCH resource determination method embodiment is implemented , and can achieve the same technical effect, in order to avoid repetition, it is not repeated here.
  • the processor is the processor in the terminal described in the foregoing embodiment.
  • the readable storage medium includes a computer-readable storage medium, such as a computer read-only memory (Read-Only Memory, ROM), a random access memory (Random Access Memory, RAM), a magnetic disk or an optical disk, and the like.
  • An embodiment of the present application further provides a chip, where the chip includes a processor and a communication interface, the communication interface is coupled to the processor, and the processor is configured to run a program or an instruction to implement the above PDSCH resource configuration or PDSCH resource
  • the chip includes a processor and a communication interface
  • the communication interface is coupled to the processor
  • the processor is configured to run a program or an instruction to implement the above PDSCH resource configuration or PDSCH resource
  • the chip mentioned in the embodiments of the present application may also be referred to as a system-on-chip, a system-on-chip, a system-on-chip, or a system-on-a-chip, or the like.
  • An embodiment of the present application further provides a computer program product, where the computer program product is stored in a non-volatile storage medium, and the computer program product is executed by at least one processor to implement the above PDSCH resource configuration or PDSCH resource determination
  • the computer program product is executed by at least one processor to implement the above PDSCH resource configuration or PDSCH resource determination

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  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Mobile Radio Communication Systems (AREA)

Abstract

Des modes de réalisation de la présente invention concernent un procédé et un appareil de configuration de ressources d'un canal physique partagé descendant (PDSCH), un dispositif et un support de stockage. Le procédé consiste à : déterminer une ressource dans un ensemble de ressources de commande (CORESET) d'un canal physique de contrôle descendant (PDCCH) disponible pour un PDSCH.
PCT/CN2021/141516 2020-12-28 2021-12-27 Procédé et appareil de configuration de ressources de canal physique partagé descendant, dispositif et support de stockage WO2022143494A1 (fr)

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CN202011583833.7 2020-12-28

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