Information determination method, communication device, communication system, and storage medium

Abstract

Provided in the present disclosure are an information determination method, a communication device, a communication system, and a storage medium. The method comprises: receiving a physical downlink control channel (PDCCH) sent by a network device; and determining first information on the basis of related information of a first signal in the PDCCH, wherein the first information is used for determining one or more first downlink control indicators (DCIs), and each first DCI is a DCI to be detected by a terminal in the PDCCH. The method of the present disclosure reduces the complexity and energy consumption of a terminal, and improves the efficiency.

Description

Information determination method, communication equipment, communication system, storage medium Technical Field

[0001] This disclosure relates to the field of communication technology, and in particular to information determination methods, communication equipment, communication systems, and storage media. Background Technology

[0002] In communication systems, terminals typically need to perform blind checks on multiple Downlink Control Indicators (DCIs) in the Physical Downlink Control Channel (PDCCH) to determine which DCI was sent to the terminal by the network device. This allows the terminal to subsequently determine the resources to be scheduled by the network device based on that DCI. However, the numerous blind checks performed by the terminal result in high complexity, high energy consumption, and low efficiency. Summary of the Invention

[0003] This disclosure proposes a method for determining information, communication equipment, communication system, and storage medium.

[0004] According to a first aspect of the present disclosure, an information determination method is proposed, executed by a terminal, the method comprising: receiving a physical downlink control channel (PDCCH) sent by a network device; determining first information based on relevant information of a first signal in the PDCCH, wherein the first information is used to determine one or more first downlink control indications (DCIs), the first DCI being a DCI that the terminal needs to detect in the PDCCH.

[0005] According to a second aspect of the present disclosure, an information determination method is provided, performed by a network device, the method comprising: sending a Physical Downlink Control Channel (PDCCH) to a terminal, wherein relevant information of a first signal in the PDCCH is used to determine first information, the first information being used to determine one or more first Downlink Control Indicators (DCIs), the first DCI being a DCI that the terminal needs to detect in the PDCCH.

[0006] According to a third aspect of the present disclosure, a terminal is provided, comprising: a transceiver module for receiving a physical downlink control channel (PDCCH) sent by a network device; and a processing module for determining first information based on relevant information of a first signal in the PDCCH, wherein the first information is used to determine one or more first downlink control indications (DCIs), the first DCI being a DCI that the terminal needs to detect in the PDCCH.

[0007] According to a fourth aspect of the present disclosure, a network device is provided, comprising: a transceiver module, configured to transmit a Physical Downlink Control Channel (PDCCH) to a terminal, wherein related information of a first signal in the PDCCH is used to determine first information, the first information being used to determine one or more first downlink control indications (DCIs), the first DCI being a DCI that the terminal needs to detect in the PDCCH.

[0008] According to a fifth aspect of the embodiments of this disclosure, a communication device is provided, comprising:

[0009] One or more processors;

[0010] The processor is configured to invoke instructions to cause the communication device to execute any of the information determination methods described in the first or second aspect.

[0011] According to a sixth aspect of the present disclosure, a communication system is provided, including a terminal and a network device, wherein the terminal is configured to implement the information determination method described in the first aspect, and the network device is configured to implement the information determination method described in the second aspect.

[0012] According to a seventh aspect of the present disclosure, a storage medium is provided that stores instructions that, when executed on a communication device, cause the communication device to perform an information determination method as described in any of the first to second aspects.

[0013] According to an eighth aspect of the present disclosure, the present disclosure provides a program product including a computer program that, when executed by a communication device, implements the information determination method as described in any of the first to second aspects.

[0014] According to a ninth aspect of the present disclosure, the present disclosure provides a computer program that, when run on a computer, causes the computer to perform an information determination method as described in any of the first to second aspects.

[0015] It is understood that the aforementioned terminals, network devices, communication devices, communication systems, storage media, program products, and computer programs are all used to execute the methods proposed in the embodiments of this disclosure. Therefore, the beneficial effects they can achieve can be referred to the beneficial effects in the corresponding methods, and will not be repeated here. Attached Figure Description

[0016] The above and / or additional aspects and advantages of this disclosure will become apparent and readily understood from the following description of the embodiments taken in conjunction with the accompanying drawings, in which:

[0017] Figure 1 is a schematic diagram of the architecture of some communication systems provided in the embodiments of this disclosure;

[0018] Figure 2A is an interactive schematic diagram of an information determination method provided in an embodiment of this disclosure;

[0019] Figure 2B is a schematic diagram illustrating a first candidate resource of a first type according to an embodiment of the present disclosure;

[0020] Figure 2C is a schematic diagram illustrating a first candidate resource of a second type according to an embodiment of the present disclosure;

[0021] Figure 3 is a flowchart illustrating an information determination method provided in another embodiment of this disclosure;

[0022] Figure 4 is a flowchart illustrating an information determination method provided in another embodiment of this disclosure;

[0023] Figure 5A is a schematic diagram of the structure of a terminal provided in an embodiment of this disclosure;

[0024] Figure 5B is a schematic diagram of the structure of a network device provided in an embodiment of this disclosure;

[0025] Figure 6A is a schematic diagram of the structure of a communication device provided in an embodiment of this disclosure;

[0026] Figure 6B is a schematic diagram of the structure of a chip provided in an embodiment of this disclosure. Detailed Implementation

[0027] This disclosure provides an information determination method, a communication device, a communication system, and a storage medium.

[0028] In a first aspect, embodiments of this disclosure propose an information determination method, executed by a terminal, the method comprising: receiving a Physical Downlink Control Channel (PDCCH) sent by a network device; determining first information based on relevant information of a first signal in the PDCCH, wherein the first information is used to determine one or more first downlink control indications (DCIs), the first DCI being a DCI that the terminal needs to detect in the PDCCH.

[0029] In the above embodiments, the terminal can determine the first information based on the relevant information of the first signal in the PDCCH. The first information is used to determine one or more first DCIs, which are the DCIs that the terminal needs to detect. Thus, in the embodiments of this disclosure, the terminal does not blindly detect DCIs, but first determines the first information, determines the first DCI to be detected based on the first information, and then detects the first DCI. The first information in the embodiments of this disclosure gives the terminal directionality for DCI detection, avoids some invalid blind detections, reduces the number of blind detections (or detections), thereby reducing terminal complexity and energy consumption, and improving efficiency.

[0030] In conjunction with some embodiments of the first aspect, in some embodiments, the relevant information of the first signal includes at least one of the following: a first parameter, the first parameter being used to determine a first initial sequence value of the first signal; the first initial sequence value of the first signal; a first sequence of the first signal; a time-domain resource location of the first signal; a frequency-domain resource location of the first signal; a spatial-domain resource location of the first signal; a first offset value, the first offset value being an offset between the first initial sequence value of the first signal and a second initial sequence value of the first signal; wherein different first signals correspond to different first initial sequence values, the first initial sequence value being used to determine the first sequence, and different first signals correspond to the same second initial sequence value.

[0031] In conjunction with some embodiments of the first aspect, in some embodiments, the first DCI is located in a first candidate resource, which is part or all of the resources occupied by the PDCCH;

[0032] The first information includes at least one of the following: a first aggregation level (AL) value, the first AL value including the AL value corresponding to the first candidate resource; a second AL value, the second AL value satisfying any of the following: the AL value corresponding to the first candidate resource is less than the second AL value, the AL value corresponding to the first candidate resource is greater than the second AL value, the AL value corresponding to the first candidate resource is not less than the second AL value, or the AL value corresponding to the first candidate resource is not greater than the second AL value; a first AL set, the first AL set including AL values ​​corresponding to multiple first candidate resources respectively; the resource type corresponding to the first candidate resource; the DCI format of the first DCI; the DCI size of the first DCI; and the Radio Network Temporary Identifier (RNTI) of the first DCI.

[0033] In the above embodiments, it is explained what the first information and the related information of the first signal may include, so that the terminal can accurately determine the first information and the related information of the first signal, thereby facilitating the terminal to determine the first information based on the related information of the first signal, and to determine the first DCI to be detected based on the first information. Thus, the first information in the embodiments of this disclosure gives the terminal directionality for DCI detection, avoids some invalid blind detections, reduces the number of blind detections (or detections), thereby reducing terminal complexity and energy consumption, and improving efficiency.

[0034] In conjunction with some embodiments of the first aspect, in some embodiments, determining the first information based on the relevant information of the first signal in the PDCCH includes: determining a first correspondence, the first correspondence including the correspondence between the relevant information of the first signal and the first information; determining the relevant information of the first signal based on the first signal in the PDCCH; and determining the first information based on the first correspondence and the relevant information of the first signal.

[0035] In conjunction with some embodiments of the first aspect, in some embodiments, determining the first information based on the relevant information of the first signal in the PDCCH includes: determining first indication information, the first indication information being used to indicate the first information, the first indication information being carried by the relevant information of the first signal, wherein the relevant information of the first signal is included in the PDCCH; and determining the first information based on the first indication information.

[0036] In the above embodiments, a specific method for the terminal to determine the first information is described so that the terminal can accurately determine the first information by using the method of the present disclosure embodiments, thereby facilitating the terminal to determine the first DCI to be detected based on the first information. The first information of the present disclosure embodiments gives the terminal directionality for DCI detection, avoids some invalid blind detections, reduces the number of blind detections (or detections), thereby reducing terminal complexity and energy consumption, and improving efficiency.

[0037] Secondly, this disclosure provides an information determination method executed by a network device. The method includes: sending a Physical Downlink Control Channel (PDCCH) to a terminal, wherein relevant information of a first signal in the PDCCH is used to determine first information, and the first information is used to determine one or more first downlink control indications (DCIs), wherein the first DCI is a DCI that the terminal needs to detect in the PDCCH.

[0038] In conjunction with some embodiments of the second aspect, in some embodiments, the relevant information of the first signal includes at least one of the following: a first parameter, the first parameter being used to determine a first initial sequence value of the first signal; the first initial sequence value of the first signal; a first sequence of the first signal; a time-domain resource location of the first signal; a frequency-domain resource location of the first signal; a spatial-domain resource location of the first signal; a first offset value, the first offset value being an offset between the first initial sequence value of the first signal and a second initial sequence value of the first signal; wherein different first signals correspond to different first initial sequence values, the first initial sequence value being used to determine the first sequence, and different first signals correspond to the same second initial sequence value.

[0039] In conjunction with some embodiments of the second aspect, in some embodiments, the first DCI is located in a first candidate resource, which is part or all of the resources occupied by the PDCCH;

[0040] The first information includes at least one of the following: a first aggregation level (AL) value, the first AL value including the AL value corresponding to the first candidate resource; a second AL value, the second AL value satisfying any of the following: the AL value corresponding to the first candidate resource is less than the second AL value, the AL value corresponding to the first candidate resource is greater than the second AL value, the AL value corresponding to the first candidate resource is not less than the second AL value, or the AL value corresponding to the first candidate resource is not greater than the second AL value; a first AL set, the first AL set including AL values ​​corresponding to multiple first candidate resources respectively; the resource type corresponding to the first candidate resource; the DCI format of the first DCI; the DCI size of the first DCI; and the Radio Network Temporary Identifier (RNTI) of the first DCI.

[0041] In conjunction with some embodiments of the second aspect, in some embodiments, there is a first correspondence between the relevant information of the first signal and the first information; the first correspondence is predefined by the protocol and / or determined by the network device.

[0042] In conjunction with some embodiments of the second aspect, in some embodiments, the relevant information of the first signal carries the first indication information, wherein the relevant information of the first signal is included in the PDCCH, and the first indication information is used to indicate the first information.

[0043] Thirdly, embodiments of this disclosure propose a terminal, including: a transceiver module for receiving a Physical Downlink Control Channel (PDCCH) sent by a network device; and a processing module for determining first information based on relevant information of a first signal in the PDCCH, wherein the first information is used to determine one or more first downlink control indications (DCIs), and the first DCI is a DCI that the terminal needs to detect in the PDCCH.

[0044] In conjunction with some embodiments of the third aspect, in some embodiments, the relevant information of the first signal includes at least one of the following: a first parameter, the first parameter being used to determine a first initial sequence value of the first signal; the first initial sequence value of the first signal; a first sequence of the first signal; a time-domain resource location of the first signal; a frequency-domain resource location of the first signal; a spatial-domain resource location of the first signal; a first offset value, the first offset value being an offset between the first initial sequence value of the first signal and a second initial sequence value of the first signal; wherein different first signals correspond to different first initial sequence values, the first initial sequence value being used to determine the first sequence, and different first signals correspond to the same second initial sequence value.

[0045] In conjunction with some embodiments of the third aspect, in some embodiments, the first DCI is located in a first candidate resource, which is part or all of the resources occupied by the PDCCH;

[0046] The first information includes at least one of the following: a first aggregation level (AL) value, the first AL value including the AL value corresponding to the first candidate resource; a second AL value, the second AL value satisfying any of the following: the AL value corresponding to the first candidate resource is less than the second AL value, the AL value corresponding to the first candidate resource is greater than the second AL value, the AL value corresponding to the first candidate resource is not less than the second AL value, or the AL value corresponding to the first candidate resource is not greater than the second AL value; a first AL set, the first AL set including AL values ​​corresponding to multiple first candidate resources respectively; the resource type corresponding to the first candidate resource; the DCI format of the first DCI; the DCI size of the first DCI; and the Radio Network Temporary Identifier (RNTI) of the first DCI.

[0047] In conjunction with some embodiments of the third aspect, in some embodiments, determining the first information based on the relevant information of the first signal in the PDCCH includes: determining a first correspondence, the first correspondence including the correspondence between the relevant information of the first signal and the first information; determining the relevant information of the first signal based on the first signal in the PDCCH; and determining the first information based on the first correspondence and the relevant information of the first signal.

[0048] In conjunction with some embodiments of the third aspect, in some embodiments, determining the first information based on the relevant information of the first signal in the PDCCH includes: determining first indication information, the first indication information being used to indicate the first information, the first indication information being carried by the relevant information of the first signal, wherein the relevant information of the first signal is included in the PDCCH; and determining the first information based on the first indication information.

[0049] Fourthly, this disclosure provides a network device, including: a transceiver module, configured to send a Physical Downlink Control Channel (PDCCH) to a terminal, wherein relevant information of a first signal in the PDCCH is used to determine first information, the first information being used to determine one or more first downlink control indications (DCIs), and the first DCI being a DCI that the terminal needs to detect in the PDCCH.

[0050] In conjunction with some embodiments of the fourth aspect, in some embodiments, the relevant information of the first signal includes at least one of the following: a first parameter, the first parameter being used to determine a first initial sequence value of the first signal; the first initial sequence value of the first signal; a first sequence of the first signal; a time-domain resource location of the first signal; a frequency-domain resource location of the first signal; a spatial-domain resource location of the first signal; a first offset value, the first offset value being an offset between the first initial sequence value of the first signal and a second initial sequence value of the first signal; wherein different first signals correspond to different first initial sequence values, the first initial sequence value being used to determine the first sequence, and different first signals correspond to the same second initial sequence value.

[0051] In conjunction with some embodiments of the fourth aspect, in some embodiments, the first DCI is located in a first candidate resource, which is part or all of the resources occupied by the PDCCH;

[0052] The first information includes at least one of the following: a first aggregation level (AL) value, the first AL value including the AL value corresponding to the first candidate resource; a second AL value, the second AL value satisfying any of the following: the AL value corresponding to the first candidate resource is less than the second AL value, the AL value corresponding to the first candidate resource is greater than the second AL value, the AL value corresponding to the first candidate resource is not less than the second AL value, or the AL value corresponding to the first candidate resource is not greater than the second AL value; a first AL set, the first AL set including AL values ​​corresponding to multiple first candidate resources respectively; the resource type corresponding to the first candidate resource; the DCI format of the first DCI; the DCI size of the first DCI; and the Radio Network Temporary Identifier (RNTI) of the first DCI.

[0053] In conjunction with some embodiments of the fourth aspect, in some embodiments, there is a first correspondence between the relevant information of the first signal and the first information; the first correspondence is predefined by the protocol and / or determined by the network device.

[0054] In conjunction with some embodiments of the fourth aspect, in some embodiments, the relevant information of the first signal carries the first indication information, wherein the relevant information of the first signal is included in the PDCCH, and the first indication information is used to indicate the first information.

[0055] Fifthly, embodiments of this disclosure provide a communication device, which includes: one or more processors; one or more memories for storing instructions; wherein the processors are used to invoke the instructions to cause the communication device to perform the methods described in the first aspect, the optional implementation of the first aspect, the second aspect, and the optional implementation of the second aspect.

[0056] In a sixth aspect, embodiments of this disclosure provide a communication system comprising: a terminal and a network device; wherein the terminal is configured to perform the method described in the first aspect and optional implementations thereof, and the network device is configured to perform the method described in the second aspect and optional implementations thereof.

[0057] In a seventh aspect, embodiments of this disclosure provide a storage medium storing instructions that, when executed on a communication device, cause the communication device to perform the method described in the first aspect, an optional implementation of the first aspect, the second aspect, and an optional implementation of the second aspect.

[0058] Eighthly, embodiments of this disclosure provide a program product including a computer program that, when executed by a processor, implements the methods described in the first aspect, optional implementations of the first aspect, the second aspect, and optional implementations of the second aspect.

[0059] In a ninth aspect, embodiments of this disclosure provide a computer program that, when run on a computer, causes the computer to perform the methods described in the first aspect, an optional implementation of the first aspect, the second aspect, and an optional implementation of the second aspect.

[0060] It is understood that the aforementioned terminals, network devices, communication devices, communication systems, storage media, program products, and computer programs are all used to execute the methods proposed in the embodiments of this disclosure. Therefore, the beneficial effects they can achieve can be referred to the beneficial effects in the corresponding methods, and will not be repeated here.

[0061] This disclosure provides a resource selection method, a communication device, a communication system, and a storage medium. In some embodiments, the terms resource selection method, information processing method, information sending method, and information receiving method can be used interchangeably; the terms communication device, information processing device, information sending device, and information receiving device can be used interchangeably; and the terms information processing system, communication system, information sending system, and information receiving system can be used interchangeably.

[0062] This disclosure is not exhaustive, but merely illustrative of some embodiments, and is not intended to limit the scope of protection of this disclosure. Unless otherwise specified, each step in a particular embodiment can be implemented as an independent embodiment, and the steps can be arbitrarily combined. For example, a solution after removing some steps in a particular embodiment can also be implemented as an independent embodiment, and the order of the steps in a particular embodiment can be arbitrarily interchanged. Furthermore, the optional implementation methods in a particular embodiment can be arbitrarily combined; moreover, the embodiments can be arbitrarily combined, for example, some or all steps of different embodiments can be arbitrarily combined, and a particular embodiment can be arbitrarily combined with the optional implementation methods of other embodiments.

[0063] In each of the disclosed embodiments, unless otherwise specified or in case of logical conflict, the terminology and / or descriptions of the embodiments are consistent and can be referenced by each other. Technical features in different embodiments can be combined to form new embodiments based on their inherent logical relationships.

[0064] The terminology used in the embodiments of this disclosure is for the purpose of describing particular embodiments only and is not intended to limit the scope of this disclosure.

[0065] Figure 1 is a schematic diagram of the architecture of a communication system according to an embodiment of the present disclosure. As shown in Figure 1, the communication system 100 may include a terminal and network devices. Optionally, the network devices may include at least one of access network devices and core network devices.

[0066] In some embodiments, the terminal includes, but is not limited to, at least one of the following: mobile phone, wearable device, Internet of Things device, car with communication function, smart car, tablet, computer with wireless transceiver function, virtual reality (VR) terminal device, augmented reality (AR) terminal device, wireless terminal device in industrial control, wireless terminal device in self-driving, wireless terminal device in remote medical surgery, wireless terminal device in smart grid, wireless terminal device in transportation safety, wireless terminal device in smart city, and wireless terminal device in smart home.

[0067] In some embodiments, the access network device is, for example, a node or device that connects a terminal to a wireless network. The access network device may include at least one of the following in a 5G communication system: evolved Node B (eNB), next-generation evolved Node B (ng-eNB), next-generation Node B (gNB), Node B (NB), Home Node B (HNB), Home evolved Node B (HeNB), radio backhaul device, radio network controller (RNC), base station controller (BSC), base transceiver station (BTS), base band unit (BBU), mobile switching center, base station in a 6G communication system, open RAN, cloud RAN, base station in other communication systems, and access node in a Wi-Fi system, but is not limited thereto.

[0068] In some embodiments, the technical solutions of this disclosure can be applied to the Open RAN architecture. In this case, the interfaces between or within access network devices involved in the embodiments of this disclosure can be transformed into internal interfaces of Open RAN. The processes and information interactions between these internal interfaces can be implemented by software or programs.

[0069] In some embodiments, the access network device may be composed of a central unit (CU) and a distributed unit (DU). The CU may also be called a control unit. The CU-DU structure can separate the protocol layer of the access network device. Some protocol layer functions are centrally controlled by the CU, while the remaining part or all protocol layer functions are distributed in the DU and centrally controlled by the CU. However, this is not the only possibility.

[0070] In some embodiments, a core network device may be a single device comprising one or more network elements, or it may be multiple devices or a group of devices, each comprising all or part of the aforementioned one or more network elements. Network elements may be virtual or physical. The core network may include, for example, at least one of the following: Evolved Packet Core (EPC), 5G Core Network (5GCN), and Next Generation Core (NGC).

[0071] It is understood that the communication system described in this disclosure is for the purpose of more clearly illustrating the technical solutions of this disclosure, and does not constitute a limitation on the technical solutions proposed in this disclosure. As those skilled in the art will know, with the evolution of system architecture and the emergence of new business scenarios, the technical solutions proposed in this disclosure are also applicable to similar technical problems.

[0072] The following embodiments of this disclosure can be applied to the communication system 100 shown in FIG1, or to some of the main bodies, but are not limited thereto. The main bodies shown in FIG1 are illustrative. The communication system may include all or some of the main bodies in FIG1, or may include other main bodies outside of FIG1. ​​The number and form of each main body are arbitrary. The connection relationship between the main bodies is illustrative. The main bodies may not be connected or may be connected. The connection can be in any way, it can be a direct connection or an indirect connection, it can be a wired connection or a wireless connection.

[0073] The embodiments disclosed herein can be applied to Long Term Evolution (LTE), LTE-Advanced (LTE-A), LTE-Beyond (LTE-B), SUPER 3G, IMT-Advanced, 4th Generation mobile communication system (4G), 5th Generation mobile communication system (5G), 5G New Radio (NR), Future Radio Access (FRA), New-Radio Access Technology (RAT), New Radio (NR), New Radio Access (NX), Future Generation Radio Access (FX), Global System for Mobile communications (GSM), CDMA2000, Ultra Mobile Broadband (UMB), IEEE 802.11 (Wi-Fi), IEEE 802.16 (WiMAX), and IEEE 802.20, Ultra-Wideband (UWB), Bluetooth (a registered trademark), Public Land Mobile Network (PLMN) networks, Device-to-Device (D2D) systems, Machine-to-Machine (M2M) systems, Internet of Things (IoT) systems, Vehicle-to-Everything (V2X) systems, systems utilizing other resource selection methods, and next-generation systems built upon them, etc. Furthermore, multiple systems can be combined (e.g., a combination of LTE or LTE-A with 5G).

[0074] Figure 2A is an interactive schematic diagram of an information determination method according to an embodiment of the present disclosure. As shown in Figure 2A, this embodiment of the disclosure relates to an information determination method for a communication system 100; the method includes:

[0075] Step 2101: The network device sends a PDCCH to the terminal.

[0076] In some embodiments, a terminal may receive a PDCCH sent by a network device. Optionally, the PDCCH may include multiple second DCIs. Different second DCIs may be sent by the network device to different or the same terminal. Different second DCIs may be used to schedule different resources for the same or different terminals.

[0077] In some embodiments, the PDCCH may include a first signal, which may be, for example, a demodulation reference signal (DMRS). Optionally, the first signal may also be called PDCCH DMRS or other names, which are not specifically limited in this disclosure.

[0078] In some embodiments, the relevant information of the first signal can be used to determine the first information.

[0079] Optionally, the relevant information of the first signal may include at least one of the following: a first parameter, a first initial sequence value of the first signal, a first sequence of the first signal, a time-domain resource location of the first signal, a frequency-domain resource location of the first signal, a spatial-domain resource location of the first signal, and a first offset value.

[0080] Optionally, the first parameter can be used to determine or initialize or generate a first initial sequence value of the first signal. In some embodiments, the first initial sequence value can be used to determine or initialize or generate a first sequence of the first signal. Optionally, different first signals can correspond to different first initial sequence values. Optionally, when the first signal is DMRS, the first initial sequence value can be a DMRS initial sequence value, and the first sequence can be a DMRS sequence.

[0081] Optionally, the time-domain resource location of the first signal may include, for example, the time-domain symbol location and time-domain symbol index of the first signal.

[0082] Optionally, the frequency domain resource location of the first signal may include, for example, the location of the frequency domain resource element (RE) of the first signal, the frequency domain RE index, etc.

[0083] Optionally, the spatial resource location of the first signal can also be referred to as antenna port information. Optionally, the spatial resource location of the first signal may include, for example, at least one air interface number of the first signal. Optionally, the air interface number may include, for example, 2000, 3000. Different air interface numbers may correspond to different time-domain resource locations and / or different frequency-domain resource locations, or different air interface numbers may correspond to the same time-domain resource location and the same frequency-domain resource location. Optionally, when different air interface numbers correspond to the same time-domain resource location and the same frequency-domain resource location, different orthogonal cover code (OCC) sequences of the first signal can be used to distinguish the different air interface numbers of the first signal. When different air interface numbers correspond to different time-domain resource locations and / or different frequency-domain resource locations, different time-domain resource locations and / or different frequency-domain resource locations can be used to distinguish the different air interfaces of the first signal.

[0084] Optionally, the aforementioned first offset value can be an offset between a first initial sequence value and a second initial sequence value of the first signal. Optionally, the second initial sequence value can be predefined by the protocol and / or configured by the network device. In some embodiments, different first signals can correspond to the same second initial sequence value. Optionally, when the first signal is DMRS, the second initial sequence value can be the DMRS initial sequence value.

[0085] Optionally, the first information described above can be used to determine one or more first DCIs. The first DCI can be a DCI that the terminal needs to detect in the PDCCH. In some embodiments, the one or more first DCIs can be a subset or a true subset of multiple second DCIs. For example, the one or more first DCIs can be a part of multiple second DCIs.

[0086] In some embodiments, the first DCI may be located in the first candidate resource, which may be part or all of the resources occupied by the PDCCH. Optionally, the first candidate resource may also be called a candidate PDCCH, a candidate PDCCH resource, or other names, which are not specifically limited in this disclosure.

[0087] In some embodiments, the first information may include at least one of the following: a first aggregation grade (AL) value, a second AL value, a first AL set, a resource type corresponding to the first candidate resource, a DCI format of the first DCI, a DCI size of the first DCI, and a radio network temporary identifier (RNTI) of the first DCI.

[0088] Optionally, the aforementioned first AL value may include the AL value corresponding to the first candidate resource. Optionally, the AL value corresponding to the first candidate resource can be understood, for example, as the number of Control Channel Elements (CCEs) contained in a first candidate resource. Optionally, the AL value may include at least one of 1, 2, 4, 8, 16, 32, and 64. For example, when the AL value corresponding to the first candidate resource is 2, it indicates that the first candidate resource includes 2 CCEs; for example, the first candidate resource may include CCE#0 and CCE#1. When the AL value corresponding to the first candidate resource is 4, it indicates that the first candidate resource includes 4 CCEs; for example, the first candidate resource may include CCE#4, CCE#5, CCE#6, and CCE#7.

[0089] Optionally, the aforementioned second AL value can satisfy any of the following: the AL value corresponding to the first candidate resource is less than the second AL value; the AL value corresponding to the first candidate resource is greater than the second AL value; the AL value corresponding to the first candidate resource is not less than the second AL value; or the AL value corresponding to the first candidate resource is not greater than the second AL value. In some embodiments, the second AL value may also be referred to as the AL threshold of the first candidate resource, the maximum AL value of the first candidate resource, the minimum AL value of the first candidate resource, the AL extreme value of the first candidate resource, or other names, and this disclosure does not specifically limit it in this way.

[0090] Optionally, the first AL set mentioned above may include AL values ​​corresponding to multiple first candidate resources. For example, the first AL set may include {1, 2, 4}.

[0091] Optionally, the resource type corresponding to the first candidate resource mentioned above may include at least one of a first type (Type 1) and a second type (Type 2). Optionally, FIG2B is a schematic diagram of a first candidate resource of the first type according to an embodiment of the present disclosure, and FIG2C is a schematic diagram of a first candidate resource of the second type according to an embodiment of the present disclosure. The black boxes in FIG2B and FIG2C represent first candidate resources. As shown in FIG2B, when the resource type corresponding to the first candidate resource is the first type, the starting positions of different first candidate resources may be aligned or not aligned. As shown in FIG2C, when the resource type corresponding to the first candidate resource is the second type, the starting positions of different first candidate resources need to be aligned. In some embodiments, the first type mentioned above may also be called a Legacy Type, and the second type mentioned above may also be called an Enhanced Type.

[0092] Optionally, the aforementioned "RNTI of the first DCI" can be used to scramble the first DCI, thereby verifying whether the first DCI is a DCI sent by the network device to the terminal, or in other words: verifying whether the first DCI is the DCI that the terminal needs to receive this time.

[0093] Optionally, the aforementioned "using the relevant information of the first signal to determine the first information" may include, for example, the existence of a first correspondence between the relevant information of the first signal and the first information, and determining the first information based on the first correspondence and the relevant information of the first signal. In some embodiments, different relevant information of the first signal may correspond to different first information. Optionally, "different relevant information of the first signal corresponding to different first information" may be understood, for example, as: different relevant information of the first signal corresponding to different information content of the first information, and / or, different relevant information of the first signal corresponding to different information indices, and different information indices corresponding to different first information. Optionally, the first correspondence may be predefined by a protocol, and / or, the first correspondence may be determined by a network device.

[0094] Optionally, when the first correspondence is predefined by the protocol, in some embodiments, the network device can directly determine the first correspondence based on the protocol predefined. In other embodiments, a first rule can be predefined by the protocol, and the network device determines the first correspondence based on the first rule. This first rule may include, for example, distributing different related information of the first signal evenly to different first information based on the number of related information items of the first signal. For example, assuming the number of related information items of the first signal is 2 and the number of first information items is K, where K is a positive integer, then related information #1 can correspond to any of the K first information items. The first piece of information, and related information #2, can correspond to any one of the K first pieces of information. The first piece of information, for example, can be sorted by value from highest to lowest or lowest to highest. Related information #1 can correspond to the previous... The first piece of information, related information #2 can correspond to the following. The first piece of information is used to determine the first correspondence. Among them, This is the floor function. This is the floor function.

[0095] For example, suppose the relevant information of the first signal includes the time-domain resource location of the first signal, where there are 2 time-domain resource locations of the first signal, and the first information includes the first AL value, where there are 4 first AL values. Then, the 4 first AL values ​​can be sorted in descending order based on the value of the first AL value, and based on the first rule, the time-domain resource location #1 corresponds to the first 2 pieces of first information, and the time-domain resource location #2 corresponds to the last 2 pieces of first information.

[0096] Optionally, in some embodiments, the aforementioned "related information of the first signal used to determine the first information" may further include, for example, that the PDCCH contains related information of the first signal, and the related information of the first signal carries first indication information. Optionally, the first indication information may be used to indicate the first information. In some embodiments, "the first indication information used to indicate the first information" may be understood as, for example, that the first indication information is used to indicate the information index of the first information, and / or that the first indication information is used to indicate the information content of the first information. In some embodiments, the first indication information may include at least one indication bit, or the first indication information may include a bitmap, which includes at least one indication bit, wherein different indication bits may be used to indicate different first information, for example, different indication bits may be used to indicate different information content and / or different information indexes of the first information.

[0097] In some embodiments, when the relevant information of the first signal is the airspace resource location of the first signal, the first indication information can be carried on the airspace resource location of the first signal. In some embodiments, the airspace resource location can be an air interface number, and the first indication information can be carried, for example, on the beam emitted by the air interface of the first signal. Alternatively, the airspace resource location of the first signal can be carried in other ways to carry the first indication information. This disclosure does not specifically limit this.

[0098] Optionally, the following uses the various related information of the first signal as examples to illustrate how the related information of the first signal determines the first information.

[0099] When the relevant information of the first signal includes the first parameter, in some embodiments, at least one different first parameter can correspond to the information content and / or information index of different first information. In other embodiments, different first parameters can carry different first indication information, and different first indication information is used to indicate the information content and / or information index of different first information.

[0100] When the relevant information of the first signal includes the first initial sequence value of the first signal, in some embodiments, at least one different first initial sequence value may correspond to the information content and / or information index of different first information. In other embodiments, different first initial sequence values ​​may carry different first indication information, and the different first indication information is used to indicate the information content and / or information index of different first information.

[0101] When the relevant information of the first signal includes the first sequence of the first signal, in some embodiments, at least one different first sequence may correspond to the information content and / or information index of different first information. In other embodiments, different first sequences may carry different first indication information, and different first indication information is used to indicate the information content and / or information index of different first information.

[0102] When the relevant information of the first signal includes the time-domain resource location of the first signal, in some embodiments, at least one different time-domain resource location may correspond to the information content and / or information index of different first information. In other embodiments, different time-domain resource locations may carry different first indication information, and the different first indication information is used to indicate the information content and / or information index of different first information.

[0103] When the relevant information of the first signal includes the frequency domain resource location of the first signal, in some embodiments, at least one different frequency domain resource location may correspond to the information content and / or information index of different first information. In other embodiments, different frequency domain resource locations may carry different first indication information, and the different first indication information is used to indicate the information content and / or information index of different first information.

[0104] When the relevant information of the first signal includes the airspace resource location of the first signal, in some embodiments, at least one different airspace resource location may correspond to the information content and / or information index of different first information. In other embodiments, different airspace resource locations may carry different first indication information, and the different first indication information is used to indicate the information content and / or information index of different first information.

[0105] When the relevant information of the first signal includes the first offset value of the first signal, in some embodiments, at least one different first offset value may correspond to the information content and / or information index of different first information. In other embodiments, different first offset values ​​may carry different first indication information, and different first indication information is used to indicate the information content and / or information index of different first information.

[0106] Step 2102: The network device sends the first signaling.

[0107] Optionally, the first signaling may be used to indicate the first correspondence described above. In some embodiments, the first signaling may include at least one of Radio Resource Control (RRC) signaling, Medium Access Control Control Element (MAC CE) signaling, and DCI signaling.

[0108] In some embodiments, multiple different candidate first correspondences may exist. For example, the protocol predefines multiple candidate first correspondences, and the aforementioned first signaling can dynamically indicate, semi-statically configure, or dynamically activate any candidate first correspondence as the first correspondence. For instance, the first signaling may include different bit values, which can be used to indicate different candidate first correspondences as the first correspondence.

[0109] Step 2103: The terminal determines the first correspondence.

[0110] For a detailed description of the first correspondence, please refer to step 2101 above.

[0111] Optionally, the terminal may determine the first correspondence based on the first signaling sent by the network device, and / or the terminal may determine the first correspondence based on a predefined protocol. For a detailed description of this part, please refer to the descriptions of steps 2101 and 2102 above.

[0112] Step 2104: The terminal determines the first information based on the relevant information of the first signal in the PDCCH.

[0113] In some embodiments, the terminal may first determine the relevant information of the first signal contained in the PDCCH, and determine the first indication information carried in the relevant information of the first signal, and determine the first information based on the first indication information. In other embodiments, the terminal may first determine the relevant information of the first signal based on the first signal in the PDCCH, and then determine the first information based on the first correspondence and the relevant information of the first signal.

[0114] The following section uses the relevant information of the first signal mentioned above as an example to illustrate how the terminal determines the relevant information of the first signal based on the first signal in the PDCCH.

[0115] Optionally, if the relevant information of the first signal includes the first parameter, the terminal may first determine the first sequence of the first signal based on the first signal in the PDCCH when determining the relevant information of the first signal, and then deduce the first initial sequence value based on the first sequence, and deduce the first parameter based on the first initial sequence value.

[0116] Optionally, if the relevant information of the first signal includes the first initial sequence value of the first signal, then when determining the relevant information of the first signal, the terminal can first determine the first sequence of the first signal based on the first signal in the PDCCH, and then deduce the first initial sequence value based on the first sequence.

[0117] Optionally, if the relevant information of the first signal includes the first sequence of the first signal, the terminal can directly determine the first sequence based on the first signal in the PDCCH when determining the relevant information of the first signal.

[0118] Optionally, if the relevant information of the first signal includes at least one of the time-domain resource location, frequency-domain resource location, and spatial-domain resource location of the first signal, then when the terminal determines the relevant information of the first signal, it can determine at least one of the time-domain resource location, frequency-domain resource location, and spatial-domain resource location of the first signal based on the occupied resources of the first signal in the PDCCH and / or the OCC sequence. For details on this part, please refer to step 2101 above.

[0119] Optionally, if the relevant information of the first signal includes a first offset value, when the terminal determines the relevant information of the first signal, it can first determine the first sequence of the first signal based on the first signal in the PDCCH, and then deduce the first initial sequence value based on the first sequence. Additionally, the terminal can determine the second initial sequence value based on protocol predefined and / or network device configuration. After that, the terminal can determine the offset value between the first initial sequence value and the second initial sequence value as the first offset value.

[0120] Optionally, it should be noted that when the relevant information of the first signal does not correspond to the first information, or when the relevant information of the first signal does not indicate the first information, the terminal may not execute this step 2104, and the terminal may directly start blind DCI detection or skip DCI blind detection (or PDCCH blind detection). For example, assuming that the first information corresponding to or indicated by the relevant information of the first signal is a first AL set, and the first AL set is empty, the terminal may not execute this step 2104 and directly start blind DCI detection or skip DCI blind detection (or PDCCH blind detection).

[0121] Step 2105: The terminal detects the first DCI based on the first information.

[0122] Optionally, the terminal can determine the first DCI based on the first information, and then the terminal can detect the first DCI.

[0123] The following uses each piece of first information as an example to illustrate how the terminal determines the first DCI based on the first information.

[0124] In some embodiments, when the first information determined by the terminal includes a first AL value, the terminal can determine a first candidate resource based on the first AL value, and the AL value corresponding to the first candidate resource is the first AL value. Then, the terminal can determine the second DCI in the first candidate resource as the first DCI and detect the first DCI.

[0125] In some embodiments, when the first information determined by the terminal includes multiple first AL values, the terminal can determine multiple first candidate resources based on the multiple first AL values, where the AL value corresponding to each first candidate resource is the first AL value. Then, the terminal can determine the second DCI among the multiple first candidate resources as the first DCI and detect the first DCI. For a detailed description of the second DCI, please refer to step 2101 above.

[0126] In some embodiments, when the first information determined by the terminal includes a second AL value, the terminal can determine one or more first candidate resources based on the second AL value. Optionally, the AL values ​​corresponding to the first candidate resources are all less than the second AL value, or the AL values ​​corresponding to the first candidate resources are all greater than the second AL value, or the AL values ​​corresponding to the first candidate resources are all not less than the second AL value, or the AL values ​​corresponding to the first candidate resources are all not greater than the second AL value. The terminal can also determine the second DCI among the determined one or more first candidate resources as the first DCI and detect the first DCI.

[0127] In some embodiments, when the first information determined by the terminal includes a first AL set, the terminal can determine one or more first candidate resources based on the first AL set, wherein the AL values ​​corresponding to the one or more first candidate resources all belong to the first AL set, and the terminal can determine the second DCI in the determined one or more first candidate resources as the first DCI and detect the first DCI.

[0128] In some embodiments, when the first information determined by the terminal includes the resource type corresponding to the first candidate resource, the terminal can determine one or more first candidate resources based on the resource type corresponding to the first candidate resource. For example, when the resource type corresponding to the first candidate resource is a first type, the resource types of the first candidate resources determined by the terminal should all be of the first type, that is, the starting positions of different first candidate resources can be aligned or not aligned. When the resource type corresponding to the first candidate resource is a second type, the resource types of the first candidate resources determined by the terminal should all be of the second type, that is, the starting positions of different first candidate resources need to be aligned. In addition, the terminal can determine the second DCI in the determined one or more first candidate resources as the first DCI and detect the first DCI.

[0129] In some embodiments, when the first information determined by the terminal includes: the DCI format of the first DCI is DCI Format 0, the terminal can determine the second DCI of DCI Format 0 in the PDCCH as the first DCI and detect the determined first DCI.

[0130] In some embodiments, when the first information determined by the terminal includes: the DCI format of the first DCI is DCI Format 0 or DCI Format 1, the terminal can determine the second DCI of DCI Format 0 or DCI Format 1 in the PDCCH as the first DCI and detect the determined first DCI.

[0131] In some embodiments, when the first information determined by the terminal includes: the RNTI of the first DCI is RNTI 0, the terminal can determine RNTI 0 as the RNTI used to scramble the first DCI. For example, the terminal can determine the second DCI with "RNTI 0 scrambling verification successful" as the first DCI.

[0132] In some embodiments, when the first information determined by the terminal includes: the RNTI of the first DCI is RNTI 0 and RNTI 1, the terminal can determine RNTI 0 and RNTI 1 as RNTIs used to scramble the first DCI. For example, the terminal can determine the second DCI that "RNTI 0 and / or RNTI 1 scrambling verification is successful" as the first DCI.

[0133] In some embodiments, when the first information determined by the terminal includes: the DCI format of the first DCI is DCI Size 0, the terminal can determine the second DCI with DCI Size 0 in the PDCCH as the first DCI and detect the determined first DCI.

[0134] In some embodiments, when the first information determined by the terminal includes: the DCI format of the first DCI is DCI Size 0 and DCI Size 1, the terminal can determine the second DCI with DCI Size 0 and DCI Size 1 in the PDCCH as the first DCI and detect the determined first DCI.

[0135] Optionally, in some embodiments, the steps of "terminal determining first information" and "terminal detecting first DCI" can both be categorized as a process of terminal detecting DCI. That is, the process of terminal detecting DCI includes: first determining the first information, and then detecting the first DCI based on the first information. In other embodiments, the step of "terminal detecting first DCI" can be categorized as a process of terminal detecting DCI, while the step of "terminal determining first information" is not categorized as a process of terminal detecting DCI. In this case, the terminal determines the first information before the "DCI detection process," and then performs the DCI detection process (i.e., detecting the first DCI based on the first information).

[0136] In summary, in the above embodiments, the terminal can determine the first information based on the relevant information of the first signal in the PDCCH. The first information is used to determine one or more first DCIs, which are the DCIs that the terminal needs to detect. Thus, in the embodiments of this disclosure, the terminal does not blindly detect DCIs, but first determines the first information, determines the first DCI to be detected based on the first information, and then detects the first DCI. Therefore, the first information in the embodiments of this disclosure gives the terminal directionality for DCI detection, avoids some invalid blind detections, reduces the number of blind detections (or detections), thereby reducing terminal complexity and energy consumption, and improving efficiency.

[0137] The information determination method involved in the embodiments of this disclosure may include at least one of steps 2101 to 2105. For example, step 2104 may be implemented as a separate embodiment, and steps 2101+2104 may be implemented as separate embodiments, but are not limited thereto.

[0138] In some embodiments, step 2102 is optional, and these steps may be omitted or replaced in different embodiments.

[0139] In some embodiments, step 2103 is optional, and these steps may be omitted or replaced in different embodiments.

[0140] In some embodiments, the steps and their optional implementations in other embodiments described before or after this embodiment, as well as other related parts in the specification, can be referred to, and will not be repeated here.

[0141] Figure 3 is a flowchart illustrating an information determination method according to an embodiment of the present disclosure. As shown in Figure 3, the present disclosure relates to an information determination method for a terminal, the method comprising:

[0142] Step 3101: Receive the Physical Downlink Control Channel (PDCCH) sent by the network device.

[0143] Step 3102: Determine the first information based on the relevant information of the first signal in the PDCCH.

[0144] Optionally, the first information is used to determine one or more first downlink control indications (DCIs), wherein the first DCI is the DCI that the terminal needs to detect in the PDCCH.

[0145] Optionally, the relevant information of the first signal includes at least one of the following: a first parameter, the first parameter being used to determine a first initial sequence value of the first signal; the first initial sequence value of the first signal; a first sequence of the first signal; a time-domain resource location of the first signal; a frequency-domain resource location of the first signal; a spatial-domain resource location of the first signal; and a first offset value, the first offset value being an offset between the first initial sequence value of the first signal and a second initial sequence value of the first signal; wherein different first signals correspond to different first initial sequence values, the first initial sequence value being used to determine the first sequence, and different first signals correspond to the same second initial sequence value.

[0146] Optionally, the first DCI is located in the first candidate resource, which is part or all of the resources occupied by the PDCCH;

[0147] The first information includes at least one of the following: a first aggregation level (AL) value, the first AL value including the AL value corresponding to the first candidate resource; a second AL value, the second AL value satisfying any of the following: the AL value corresponding to the first candidate resource is less than the second AL value, the AL value corresponding to the first candidate resource is greater than the second AL value, the AL value corresponding to the first candidate resource is not less than the second AL value, or the AL value corresponding to the first candidate resource is not greater than the second AL value; a first AL set, the first AL set including AL values ​​corresponding to multiple first candidate resources respectively; the resource type corresponding to the first candidate resource; the DCI format of the first DCI; the DCI size of the first DCI; and the Radio Network Temporary Identifier (RNTI) of the first DCI.

[0148] Optionally, determining the first information based on the relevant information of the first signal in the PDCCH includes: determining a first correspondence, the first correspondence including the correspondence between the relevant information of the first signal and the first information; determining the relevant information of the first signal based on the first signal in the PDCCH; and determining the first information based on the first correspondence and the relevant information of the first signal.

[0149] Optionally, determining the first information based on the relevant information of the first signal in the PDCCH includes: determining first indication information, wherein the first indication information is used to indicate the first information, and the first indication information is carried by the relevant information of the first signal, wherein the relevant information of the first signal is included in the PDCCH; and determining the first information based on the first indication information.

[0150] For a detailed description of steps 3101-3102, please refer to the above embodiment description.

[0151] The information determination method involved in the embodiments of this disclosure may include at least one of steps 3101 to 3102. For example, step 3101 may be implemented as an independent embodiment, step 3102 may be implemented as an independent embodiment, and steps 3101+3102 may be implemented as independent embodiments, but are not limited thereto.

[0152] In some embodiments, the steps and their optional implementations in other embodiments described before or after this embodiment, as well as other related parts in the specification, can be referred to, and will not be repeated here.

[0153] Figure 4 is a flowchart illustrating an information determination method according to an embodiment of the present disclosure. As shown in Figure 4, the present disclosure relates to an information determination method for a network device, the method comprising:

[0154] Step 4101: Send the Physical Downlink Control Channel (PDCCH) to the terminal.

[0155] Optionally, the relevant information of the first signal in the PDCCH is used to determine first information, the first information being used to determine one or more first downlink control indications (DCIs), the first DCI being the DCI that the terminal needs to detect in the PDCCH.

[0156] Optionally, the relevant information of the first signal includes at least one of the following: a first parameter, the first parameter being used to determine a first initial sequence value of the first signal; the first initial sequence value of the first signal; a first sequence of the first signal; a time-domain resource location of the first signal; a frequency-domain resource location of the first signal; a spatial-domain resource location of the first signal; and a first offset value, the first offset value being an offset between the first initial sequence value of the first signal and a second initial sequence value of the first signal; wherein different first signals correspond to different first initial sequence values, the first initial sequence value being used to determine the first sequence, and different first signals correspond to the same second initial sequence value.

[0157] Optionally, the first DCI is located in the first candidate resource, which is part or all of the resources occupied by the PDCCH;

[0158] The first information includes at least one of the following: a first aggregation level (AL) value, the first AL value including the AL value corresponding to the first candidate resource; a second AL value, the second AL value satisfying any of the following: the AL value corresponding to the first candidate resource is less than the second AL value, the AL value corresponding to the first candidate resource is greater than the second AL value, the AL value corresponding to the first candidate resource is not less than the second AL value, or the AL value corresponding to the first candidate resource is not greater than the second AL value; a first AL set, the first AL set including AL values ​​corresponding to multiple first candidate resources respectively; the resource type corresponding to the first candidate resource; the DCI format of the first DCI; the DCI size of the first DCI; and the Radio Network Temporary Identifier (RNTI) of the first DCI.

[0159] Optionally, there is a first correspondence between the relevant information of the first signal and the first information; the first correspondence is predefined by the protocol and / or determined by the network device.

[0160] Optionally, the relevant information of the first signal carries the first indication information, wherein the relevant information of the first signal is included in the PDCCH, and the first indication information is used to indicate the first information.

[0161] For a detailed description of step 4101, please refer to the above embodiment description.

[0162] In some embodiments, the steps and their optional implementations in other embodiments described before or after this embodiment, as well as other related parts in the specification, can be referred to, and will not be repeated here.

[0163] The following is an exemplary description of the above method.

[0164] 1: Overview of NR PDCCH

[0165] In NR, to improve link performance through beamforming of the PDCCH, optimize the design of the PDCCH reference signal, simplify base station scheduling, and save power consumption of the base station and terminal, NR uses UE-specific PDCCH resources. The PDCCH monitoring range of a terminal is concentrated from the system bandwidth into a "control subband", namely the control resource set (CORESET).

[0166] NR introduces mini-slots and flexible channel structures to achieve low latency. The LTE PDCCH, which can only be transmitted in the first few symbols of a subframe, cannot meet the requirements of URLLC and low-latency eMBB services. Furthermore, LTE terminals need to monitor the PDCCH in every downlink subframe, resulting in high terminal power consumption. Therefore, NR PDCCH requires a time-domain flexible PDCCH to match the flexibility of the data channel, thereby achieving on-demand transmission. This flexibility is ultimately reflected in the design of the PDCCH search space set.

[0167] NR carrier bandwidth can reach over 100MHz, and TDM alone cannot effectively reuse PDCCH and PDSCH, resulting in a significant waste of frequency domain resources on both sides of the PDCCH. Therefore, 5G NR systems support FDM for both PDCCH and PDSCH. From a terminal's perspective, its PDCCH is confined to the Control Sub-Band, while it can simultaneously receive PDSCH outside the Control Sub-Band. The base station's ORESET configuration implements this scheduling. Multiplexing between the PDCCH of other terminals and the PDSCH of this terminal is more complex, requiring information on PDCCH resources occupied by other terminals and further resolution through rate matching and other methods.

[0168] 2: Brief Description of NR PDCCH Blind Testing

[0169] NR service channels employ a mechanism for multiple users and services to share the entire physical layer resources. The design must balance flexibility with efficiency; therefore, service allocation for a specific user can be dynamic in both time and frequency. Dynamic resource allocation in the gNB time-frequency domain requires the DCI to inform the UE, but the location of the DCI is also dynamic, necessitating a mechanism to allocate it to each valid UE. This effective mechanism is the so-called DCI "blind detection." Each time a UE performs a PDCCH detection, it has a specific purpose, which is reflected in the RNTI type. Within the same PDCCH, a UE may need to detect multiple DCIs, requiring a blind detection attempt for each RNTI. Therefore, blind detection is essentially a process of trying each possible unit using the RNTI.

[0170] The entire process from PDCCH blind detection to DCI can be divided into two parts: UE determining necessary information and PDCCH channel decoding. From the terminal's perspective, the more RNTIs involved, the more PDCCH blind detections are required based on RNTI settings, and RNTI settings themselves are related to scheduling cases.

[0171] The PDCCH blind detection process may include the following steps: the terminal determines necessary information, which may include at least one of the following steps: the terminal obtains the RNTI, the terminal calculates the DCI Size, the terminal obtains candidate PDCCH resources (or Candidates resources, Candidates, etc.) for different ALs, and the terminal calculates the DCI blind detection start position. Optionally, the RNTI may be allocated to the terminal by the base station based on different scheduling cases. Optionally, the DCI Size may be the size of the DCI that the terminal wants to detect. In some embodiments, the terminal may calculate the DCI Size based on a reference DCI Size and an alignment DCI Size. Optionally, the reference DCI Size may be determined based on DCI Format 0_0 and the initial bandwidth part (BWP). Optionally, the candidate PDCCH resources may include, for example, a CORESET configuration and / or a search space (SS) configuration. Optionally, the aforementioned DCI blind detection start position can be calculated by the terminal based on CCE#0 in the Common Search Space (CSS) to determine the DCI blind detection start position corresponding to the CSS, or the aforementioned DCI blind detection start position can be calculated by the terminal based on the HASH function of the UE specific Search Space (USS) to determine the DCI blind detection start position corresponding to the USS. Optionally, after determining the necessary information, the terminal can perform channel decoding on the PDCCH. Optionally, the terminal can first demodulate the PDCCH channel code Polar code, for example, the terminal can demodulate the Polar code based on the DCI Size. Also, the terminal can perform Cyclic Redundancy Check (CRC) verification on the channel-decoded data, for example, the terminal can perform CRC verification on the channel-decoded data based on RNTI. If the verification is successful, the terminal considers that it has detected the required DCI. If the verification fails, the terminal selects a DCI with a different DCI Format and / or a different DCI Size for re-verification. If all DCIs in the current candidate PDCCH resources fail verification, the terminal proceeds to detect the next candidate PDCCH resource until the verification is successful. Optionally, if there are other DCI detection requirements, the terminal repeats the above process (such as the verification process) according to other DCI detection requirements. If all DCIs in the candidate PDCCH resources fail verification, it is determined that no DCI has been received, and the verification is abandoned.

[0172] In the current mechanism, UE receives DCI through blind detection, which is a major reason for the high complexity and energy consumption of UE implementation. In 6G PDCCH design, reducing UE blind DCI detection is an important research direction, and the number of UE blind DCI detections is one of the main evaluation indicators. To meet different service scenarios and adapt to different channel environments, the UE pre-configures multiple candidate sets for a certain type of necessary information before the entire blind detection process. UE blind detection involves traversing all candidate sets until a suitable DCI is detected. Therefore, one research direction for reducing blind detection is to provide the UE with prior information for necessary information. Based on background 2, the necessary information for UE blind detection includes RNTI, DCI size, AL (Aggregation Level) candidates, and the starting position of DCI blind detection. This paper discusses all prior information except for the prior information regarding the number of AL candidates.

[0173] The concept of this application is to prevent the prior information of the PDCCH blind detection by mapping / indicating DMRS-related information (i.e., the first information in the embodiment of Figure 2A).

[0174] Question 1: How to define the prior information for PDCCH blind detection, i.e., the first prior information (i.e., the first information in the embodiment of Figure 2A)?

[0175] First prior information refers to prior information about AL Candidates, which is mapped / indicated to the UE via DMRS, and the UE then reduces the number of blind detections based on the prior information. The first prior information specifically includes AL value, AL extreme value, AL threshold, AL set, Candidate Type, DCI Format, RNTI, and DCI Size.

[0176] Question 2: How does the UE determine the first prior information?

[0177] The first prior information is determined based on DMRS-related information. Specifically, 1) the protocol predefines a mapping relationship between the first prior information and DMRS-related information, or 2) the base station directly indicates the first prior information through DMRS-related information. The difference between the two methods is that the mapping relationship is directly based on the protocol predefinement, while the indication needs to be sent by the base station through indication bits.

[0178] Optional Example 1

[0179] In a network, a terminal determines the DCI sent by a network device through blind detection. Before blindly detecting the DCI, the terminal needs to determine the first prior information (i.e., the first information in the embodiment of Figure 2A), or in other words, the terminal needs to determine the first prior information during the blind detection of the DCI.

[0180] From the network device's perspective, the network device transmits first prior information to the terminal via DMRS-related information. From the terminal's perspective, the terminal determines the transmitted first prior information by receiving the DMRS-related information sent by the network device. The method of transmitting the information includes at least one of mapping and indication methods. The first prior information includes at least one of the following:

[0181] Option 1: AL value (i.e., the first AL value in the embodiment of Figure 2A), the specific aggregation level of the candidate during the terminal blind detection process, that is, the terminal is expected to blindly detect only the DCI corresponding to the AL value. The AL value can take at least one of 1, 2, 4, 8, 16, 32, and 64.

[0182] Option 2: Maximum AL value (i.e., the second AL value in the embodiment of Figure 2A), the maximum value of the candidate aggregation level during the terminal blind detection process, that is, the maximum AL value of the DCI that the terminal is expected to blindly detect. The maximum AL value can be at least one of 1, 2, 4, 8, 16, 32, and 64.

[0183] Option 3: Minimum AL value (i.e., the second AL value in the embodiment of Figure 2A), the minimum value of the candidate aggregation level during the terminal blind detection process, that is, the minimum AL value of the DCI that the terminal is expected to blindly detect. The minimum AL value can take at least one of the following: 1, 2, 4, 8, 16, 32, and 64.

[0184] Option 4: AL threshold (i.e., the second AL value in the embodiment of Figure 2A), a threshold for the candidate aggregation level during the terminal blind detection process, that is, the threshold of the AL of the DCI that the terminal is expected to blindly detect. The AL of the DCI blindly detected by the terminal is not higher than / not lower than / less than / greater than the threshold. The AL threshold can take at least one of 1, 2, 4, 8, 16, 32, and 64.

[0185] Option 5: The AL set (i.e., the first AL set in the embodiment of Figure 2A) is the set of all candidate aggregation levels during the terminal blind detection process, i.e., the AL set of the DCI that the terminal is expected to blindly detect. The AL set includes at least one AL value. Optionally, if the AL set does not include an AL value, the terminal skips the PDCCH blind detection.

[0186] Option 6: Candidate Type (i.e., the resource type corresponding to the first candidate resource in the embodiment of Figure 2A), wherein the Candidate Type is used to determine at least one candidate resource type. Optionally, the Candidate Type includes at least two types: Type1 (i.e., the first type in the embodiment of Figure 2A) and Type2 (i.e., the second type in the embodiment of Figure 2A).

[0187] Type 1 is Legacy Type, meaning the terminal needs to determine the Candidate according to the NR rules, which means that the candidate resource positions of different ALs' DCIs may not be aligned.

[0188] Type 2 is Enhanced Type, meaning the starting positions of candidate resources from different ALs are aligned.

[0189] Option 7: DCI Format, which is the candidate DCI Format during the terminal blind detection process.

[0190] Option 8: RNTI, which is the candidate RNTI for DCI scrambling during the terminal blind detection process.

[0191] Option 9: DCI Size, which is the size of the candidate DCI during the terminal blind detection process.

[0192] Optional Example 2

[0193] In a network, a terminal determines the DCI sent by a network device through blind detection. Before blindly detecting the DCI, the terminal needs to determine the first prior information; in other words, the terminal needs to determine the first prior information during the blind detection of the DCI.

[0194] From the network device's perspective, the network device transmits first prior information to the terminal via DMRS-related information. From the terminal's perspective, the terminal determines the transmitted first prior information by receiving the DMRS-related information sent by the network device. The method of transmitting the information includes at least one of mapping and indication methods. DMRS-related information includes at least one of the following:

[0195] Option 1: DMRS-related information is the first parameter for the initial DMRS sequence value. The protocol predefines multiple first parameters, which are used to generate the initial DMRS sequence value.

[0196] Optionally, at least one first parameter maps to a parameter value / specific meaning of a first prior information.

[0197] Optionally, the first parameter carries first indication bit information, which is used to indicate the parameter value of the first prior information / distinguish different specific meanings.

[0198] Option 2: The DMRS-related information is the first DMRS sequence (i.e., the first sequence in the embodiment of Figure 2A). The protocol predefines multiple first DMRS sequences.

[0199] Optionally, at least one first DMRS sequence maps a parameter value / specific meaning of a first prior information.

[0200] Optionally, the first DMRS sequence carries first indicator bit information, which is used to indicate the parameter value of the first prior information / distinguish different specific meanings.

[0201] Option 3: The DMRS-related information is the first DMRS initial sequence value (i.e., the first initial sequence value in the embodiment of Figure 2A). The protocol predefines multiple first DMRS initial sequence values, which are used for the initialization of the first DMRS sequence.

[0202] Optionally, at least one first DMRS initial sequence value maps to a parameter value / specific meaning of a first prior information.

[0203] Optionally, the first DMRS initial sequence value carries first indicator bit information, which is used to indicate the parameter value of the first prior information / distinguish different specific meanings.

[0204] Option 4: DMRS-related information includes DMRS resource locations (i.e., time-domain and / or frequency-domain resource locations in the embodiment of Figure 2A). The DMRS resource locations can be at least one of the DMRS frequency-domain pattern, DMRS time-domain pattern, and DMRS time-frequency-domain pattern. The protocol predefines multiple DMRS patterns.

[0205] Optionally, at least one DMRS pattern maps a parameter value / specific meaning of a first prior information.

[0206] Optionally, the DMRS pattern carries first indication bit information, which is used to indicate the parameter value of the first prior information / distinguish different specific meanings.

[0207] Option 5: DMRS-related information is antenna port information (i.e., the airspace resource location in the embodiment of Figure 2A). The protocol predefined PDCCH can use one or at least two antenna ports. Optionally, the antenna ports can be mapped / indicated by the DMRS pattern.

[0208] Optionally, at least one antenna port information is mapped to a parameter value / specific meaning of a first prior information.

[0209] Optionally, the antenna port information carries first indication bit information, which is used to indicate the parameter value of the first prior information / distinguish different specific meanings.

[0210] Optional Example 3

[0211] In a network, a terminal determines the DCI sent by a network device through blind detection. Before blindly detecting the DCI, the terminal needs to determine the first prior information; in other words, the terminal needs to determine the first prior information during the blind detection of the DCI.

[0212] The network device transmits first prior information to the terminal through DMRS-related information, and the method of transmitting the information includes at least one of mapping information and indication information.

[0213] When the first prior information is an AL value (i.e., the first AL value in the embodiment of Figure 2A), the mapping method with DMRS-related information includes at least one of the following:

[0214] Option 1: DMRS-related information is mapped to a unique AL value.

[0215] In one example implementation, DMRS-related information refers to an AL value index, which the terminal obtains based on the DMRS-related information. After confirming the AL value n, the terminal blindly checks the DCI with AL = n in the PDCCH.

[0216] Option 2: DMRS-related information is mapped to multiple AL values.

[0217] In one example implementation, DMRS-related information refers to multiple AL values. After the terminal confirms the AL values, a blind check of the DCI of all AL values ​​is performed in the PDCCH.

[0218] When the first prior information is an AL threshold (i.e., the second AL value in the embodiment of Figure 2A), the mapping method with DMRS-related information includes at least one of the following:

[0219] DMRS-related information maps to the AL threshold of a terminal's DCI that requires blind detection.

[0220] In one example implementation, DMRS-related information refers to an AL value index, which the terminal obtains based on the DMRS-related information. After confirmation by the terminal, the AL value n is the AL threshold, and DCIs with AL values ​​not less than n are blindly detected in the PDCCH.

[0221] In one example implementation, DMRS-related information refers to an AL value index, which the terminal obtains based on the DMRS-related information. After confirmation by the terminal, the AL value n is the AL threshold, and DCIs with AL values ​​less than n are blindly detected in the PDCCH.

[0222] In one example implementation, DMRS-related information refers to an AL value index, which the terminal obtains based on the DMRS-related information. After confirmation by the terminal, the AL value n is the AL threshold, and DCIs with AL values ​​not greater than n are blindly detected in the PDCCH.

[0223] In one example implementation, DMRS-related information refers to an AL value index, which the terminal obtains based on the DMRS-related information. After confirmation by the terminal, the AL value n is the AL threshold, and DCIs with AL values ​​greater than n are blindly detected in the PDCCH.

[0224] When the first prior information is an AL set, the mapping method with DMRS-related information includes at least one of the following:

[0225] The DMRS-related information map is a set of ALs that a terminal needs to blindly detect (i.e., the first AL set in the embodiment of Figure 2A). The AL set contains one or more AL values.

[0226] In one example implementation, DMRS-related information refers to an AL set index, which the terminal obtains based on the DMRS-related information. The terminal confirms the blind detection of the DCI corresponding to the AL value in the AL set within the PDCCH.

[0227] When the first prior information is Candidate Type (i.e., the resource type of the first candidate resource in the embodiment of Figure 2A), the mapping method with DMRS-related information includes at least one of the following:

[0228] DMRS-related information is mapped to a Candidate Type.

[0229] In one example implementation, the DMRS-related information refers to two candidates: Type 1 and Type 2. When the DMRS-related information refers to Type 1, the terminal performs blind DCI detection according to the Type 1 rules; when the DMRS-related information refers to Type 2, the terminal performs blind DCI detection according to the Type 2 rules. Type 1 is the legacy type, meaning the terminal needs to determine the candidate according to the NR rules, which means the candidate resource positions of different ALs can be misaligned. Type 2 is the enhanced type, meaning the starting positions of the candidate resources of different ALs are aligned.

[0230] When the first prior information is a DCI Format, the mapping method with DMRS-related information includes at least one of the following:

[0231] Option 1: DMRS-related information maps to a DCI format that a terminal needs to blindly test.

[0232] In one example implementation, DMRS-related information refers to a DCI format, and the terminal obtains the DCI format based on the DMRS-related information. The terminal confirms that the corresponding DCI format is a candidate DCI in this PDCCH blind test.

[0233] Option 2: DMRS-related information mapping for multiple terminals requiring blind testing DCI Format.

[0234] In one example implementation, DMRS-related information refers to multiple DCI formats. The terminal confirms that the corresponding DCI format is a candidate DCI in this PDCCH blind test.

[0235] When the first prior information is RNTI, the mapping method with DMRS-related information includes at least one of the following:

[0236] Option 1: DMRS-related information is mapped to the RNTI corresponding to the DCI that a terminal needs to blindly test.

[0237] In one example implementation, the DMRS-related information refers to an RNTI index, and the terminal obtains the RNTI based on the DMRS-related information. The terminal confirms that the corresponding RNTI is the RNTI used for scrambling blind detection DCI in this PDCCH blind detection.

[0238] Option 2: DMRS-related information maps to the RNTIs corresponding to multiple DCIs that need to be blind-tested by the terminal. In one example implementation, the DMRS-related information refers to multiple RNTIs. The terminal confirms that the RNTI is the RNTI used for scrambling blind-testing DCIs in this PDCCH blind test.

[0239] When the first prior information is DCI Size, the mapping method with DMRS-related information includes at least one of the following:

[0240] Option 1: DMRS-related information maps to the DCI size corresponding to the DCI that a terminal needs to blindly test. In an example implementation, DMRS-related information refers to a DCI size, and the terminal obtains the DCI size based on the DMRS-related information. The terminal confirms that the corresponding DCI size is the DCI size in this PDCCH blind test.

[0241] Option 2: DMRS-related information maps to the DCI Size corresponding to multiple DCIs that need to be blind-checked by the terminal. In one example implementation, the DMRS-related information refers to multiple DCI Size indices. The terminal confirms that the DCI Size is the DCI Size of the DCI in this PDCCH blind check.

[0242] Optional Example 4

[0243] In a network, a terminal determines the DCI sent by a network device through blind detection. Before blindly detecting the DCI, the terminal needs to determine the first prior information; in other words, the terminal needs to determine the first prior information during the blind detection of the DCI.

[0244] The network device transmits first prior information to the terminal via DMRS-related information, wherein the method of transmitting the information includes at least one of mapping information and indication information. In the method based on indication information, the DMRS-related information carries at least one bit of indication information.

[0245] When the first prior information is an AL value, the indication method related to DMRS includes at least one of the following:

[0246] Option 1: The indicator bit carried by the DMRS-related information indicates a unique AL value, that is, the DMRS-related information carries at least 1 indicator bit, which is used to indicate a unique AL value.

[0247] In one example implementation, the indicator bits carried by the DMRS-related information are used to indicate an AL value index. The terminal obtains the AL value index based on the DMRS-related information. After confirming the AL value n, the terminal blindly checks the DCI for AL = n in the PDCCH.

[0248] Option 2: The indicator bits carried by the DMRS-related information indicate multiple AL values, meaning that the DMRS-related information carries at least one indicator bit, which is used to indicate multiple AL values. Optionally, the indicator bits correspond to index values, and these index values ​​correspond to multiple AL values. Optionally, the indicator bits form a bitmap, with each bit in the bitmap corresponding to one AL value.

[0249] In one example implementation, the indicator bits carried by the DMRS-related information are used to indicate an index value that refers to multiple AL values. After the terminal confirms the AL value, it blindly checks the DCI of all AL values ​​in the PDCCH.

[0250] When the first prior information is an AL threshold, the indication method related to DMRS includes at least one of the following:

[0251] The indicator bits carried by the DMRS-related information indicate the AL threshold of the DCI that a terminal needs to blindly detect.

[0252] In one example implementation, the indicator bits carried by the DMRS-related information indicate an AL threshold index, and each AL threshold index corresponds to an AL threshold. The terminal obtains the AL threshold index based on the DMRS-related information and then determines the AL threshold. After confirmation by the terminal, the AL value n is the AL threshold, and a blind detection of DCIs with AL not less than n is performed in the PDCCH.

[0253] In one example implementation, the indicator bits carried by the DMRS-related information indicate an AL threshold index, and each AL threshold index corresponds to an AL threshold. The terminal obtains the AL threshold index based on the DMRS-related information and then determines the AL threshold. After confirmation by the terminal, the AL value n is the AL threshold, and DCIs with AL values ​​not greater than n are blindly detected in the PDCCH.

[0254] In one example implementation, the indicator bits carried by the DMRS-related information indicate an AL threshold index, and each AL threshold index corresponds to an AL threshold. The terminal obtains the AL threshold index based on the DMRS-related information and then determines the AL threshold. After confirmation by the terminal, the AL value n is the AL threshold, and DCIs with AL values ​​less than n are blindly detected in the PDCCH.

[0255] In one example implementation, the indicator bits carried by the DMRS-related information indicate an AL threshold index, and each AL threshold index corresponds to an AL threshold. The terminal obtains the AL threshold index based on the DMRS-related information and then determines the AL threshold. After confirmation by the terminal, the AL value n is the AL threshold, and DCIs with AL greater than n are blindly detected in the PDCCH.

[0256] When the first prior information is an AL set, the indication method related to DMRS includes at least one of the following:

[0257] The indicator bits carried by the DMRS-related information indicate the set of ALs that a terminal needs to blindly detect. The set of ALs contains one or more AL values.

[0258] In one example implementation, the indicator bits carried by the DMRS-related information indicate an AL set index, which the terminal obtains based on the DMRS-related information. The terminal confirms the blind detection of the DCI corresponding to the AL value in the AL set in the PDCCH.

[0259] When the first prior information is Candidate Type, the indication method related to DMRS includes at least one of the following:

[0260] The indicator bits carried by the DMRS-related information indicate a Candidate Type.

[0261] In one example implementation, the DMRS-related information refers to two candidates: Type 1 and Type 2. When the DMRS-related information refers to Type 1, the terminal performs blind DCI detection according to the Type 1 rules; when the DMRS-related information refers to Type 2, the terminal performs blind DCI detection according to the Type 2 rules. Type 1 is the legacy type, meaning the terminal needs to determine the candidate according to the NR rules, which means the candidate resource positions of different ALs can be misaligned. Type 2 is the enhanced type, meaning the starting positions of the candidate resources of different ALs are aligned.

[0262] When the first prior information is a DCI Format, the indication method related to DMRS includes at least one of the following:

[0263] Option 1: The indicator bits carried by the DMRS-related information indicate the DCI format that a terminal needs to blind-detect.

[0264] In one example implementation, the indicator bits carried by the DMRS-related information indicate a DCI format, and the terminal obtains the DCI format based on the DMRS-related information. The terminal confirms that the corresponding DCI format is the candidate DCI in this PDCCH blind detection.

[0265] Option 2: The indicator bits carried by the DMRS-related information indicate the DCI format for multiple terminals that require blind detection.

[0266] In one example implementation, the indicator bits carried by the DMRS-related information indicate multiple DCI formats. The terminal confirms that the corresponding DCI format is a candidate DCI in this PDCCH blind check.

[0267] When the first prior information is RNTI, the indication method related to DMRS includes at least one of the following:

[0268] Option 1: The indicator bits carried by the DMRS related information indicate the RNTI corresponding to the DCI that a terminal needs to blindly detect.

[0269] In one example implementation, the indicator bits carried by the DMRS-related information indicate an RNTI index, and the terminal obtains the RNTI based on the DMRS-related information. The terminal confirms that the corresponding RNTI is the RNTI used for scrambling blind detection DCI in this PDCCH blind detection.

[0270] Option 2: The indicator bits carried by the DMRS related information indicate the RNTI corresponding to the DCI that needs to be blindly detected by multiple terminals.

[0271] In one example implementation, the indicator bits carried by the DMRS-related information indicate multiple RNTIs. The terminal confirms that the RNTI is the RNTI used for scrambling blind detection DCI in this PDCCH blind detection.

[0272] When the first prior information is DCI Size, the indication method related to DMRS includes at least one of the following:

[0273] Option 1: The indicator bits carried by the DMRS related information indicate the DCI Size corresponding to the DCI that a terminal needs to blindly detect.

[0274] In one example implementation, the indicator bits carried by the DMRS-related information indicate a DCI Size, and the terminal obtains the DCI Size based on the DMRS-related information. The terminal confirms that the corresponding DCI Size is the DCI Size in this PDCCH blind detection.

[0275] Option 2: The indicator bits carried by the DMRS related information indicate the DCI Size corresponding to the DCI that needs to be blindly detected by multiple terminals.

[0276] In one example implementation, the indicator bits carried by the DMRS-related information indicate multiple DCI Size indices. The terminal confirms that the DCI Size is the DCI Size of the DCI in this PDCCH blind detection.

[0277] As can be seen from the above, the embodiments disclosed herein mainly include the following aspects:

[0278] 1. The network device transmits first prior information to the terminal through DMRS-related information, wherein the method of transmitting the information includes at least one of mapping information and indication information.

[0279] 2. Definition of the first prior information, including prior information related to AL and prior information related to DCI Format.

[0280] 3. Definition of DMRS related information, including the first parameter, DMRS initial sequence, DMRS sequence, DMRS pattern, antenna port information, etc.

[0281] 4. Determination of mapping and indication methods.

[0282] This disclosure also proposes an apparatus (also referred to as a communication device, etc.) for implementing any of the above methods. For example, an apparatus is proposed that includes units or modules for implementing the steps performed by the terminal in any of the above methods. Furthermore, another apparatus is proposed that includes units or modules for implementing the steps performed by a network device (e.g., an access network device, a core network functional node, a core network device, etc.) in any of the above methods.

[0283] It should be understood that the division of units or modules in the above device is only a logical functional division. In actual implementation, they can be fully or partially integrated into a single physical entity, or they can be physically separated. Furthermore, the units or modules in the device can be implemented by a processor calling software: for example, the device includes a processor connected to a memory containing instructions. The processor calls the instructions stored in the memory to implement any of the above methods or to implement the functions of the units or modules in the above device. The processor can be, for example, a general-purpose processor, such as a Central Processing Unit (CPU) or a microprocessor, and the memory can be internal or external to the device. Alternatively, the units or modules in the device can be implemented in the form of hardware circuits. The functionality of some or all of the units or modules can be achieved through the design of these hardware circuits, which can be understood as one or more processors. For example, in one implementation, the hardware circuit is an application-specific integrated circuit (ASIC). The functionality of some or all of the units or modules is achieved through the design of the logical relationships between the components within the circuit. In another implementation, the hardware circuit can be implemented using a programmable logic device (PLD). Taking a field-programmable gate array (FPGA) as an example, it can include a large number of logic gates. The connection relationships between the logic gates are configured through configuration files, thereby achieving the functionality of some or all of the units or modules. All units or modules of the above device can be implemented entirely through processor-called software, entirely through hardware circuits, or partially through processor-called software with the remaining parts implemented through hardware circuits.

[0284] In this embodiment, the processor is a circuit with signal processing capabilities. In one implementation, the processor can be a circuit with instruction read and execute capabilities, such as a Central Processing Unit (CPU), a microprocessor, a graphics processing unit (GPU) (which can be understood as a microprocessor), or a digital signal processor (DSP). In another implementation, the processor can implement certain functions through the logical relationships of hardware circuits. The logical relationships of the aforementioned hardware circuits are fixed or reconfigurable. For example, the processor is a hardware circuit implemented using an application-specific integrated circuit (ASIC) or a programmable logic device (PLD), such as an FPGA. In a reconfigurable hardware circuit, the process of the processor loading a configuration document and configuring the hardware circuit can be understood as the process of the processor loading instructions to implement the functions of some or all of the above units or modules. Furthermore, it can also be a hardware circuit designed for artificial intelligence, which can be understood as an ASIC, such as a Neural Network Processing Unit (NPU), a Tensor Processing Unit (TPU), or a Deep Learning Processing Unit (DPU).

[0285] Figure 5A is a schematic diagram of the structure of a terminal according to an embodiment of this disclosure. The terminal is used to execute any of the above methods. In some embodiments, as shown in Figure 5A, the terminal may include at least one of a transceiver module, a processing module, etc. The transceiver module is used to receive a Physical Downlink Control Channel (PDCCH) sent by a network device; the processing module is used to determine first information based on relevant information of a first signal in the PDCCH, wherein the first information is used to determine one or more first downlink control indications (DCIs), and the first DCI is a DCI that the terminal needs to detect in the PDCCH.

[0286] Optionally, the transceiver module described above is used to perform at least one of the communication steps such as sending and / or receiving performed by the terminal in any of the above methods, which will not be elaborated here. Optionally, the processing module described above is used to perform at least one of the other steps performed by the terminal in any of the above methods, which will not be elaborated here.

[0287] Optionally, the relevant information of the first signal includes at least one of the following: a first parameter, the first parameter being used to determine a first initial sequence value of the first signal; the first initial sequence value of the first signal; a first sequence of the first signal; a time-domain resource location of the first signal; a frequency-domain resource location of the first signal; a spatial-domain resource location of the first signal; and a first offset value, the first offset value being an offset between the first initial sequence value of the first signal and a second initial sequence value of the first signal; wherein different first signals correspond to different first initial sequence values, the first initial sequence value being used to determine the first sequence, and different first signals correspond to the same second initial sequence value.

[0288] Optionally, the first DCI is located in the first candidate resource, which is part or all of the resources occupied by the PDCCH;

[0289] The first information includes at least one of the following: a first aggregation level (AL) value, the first AL value including the AL value corresponding to the first candidate resource; a second AL value, the second AL value satisfying any of the following: the AL value corresponding to the first candidate resource is less than the second AL value, the AL value corresponding to the first candidate resource is greater than the second AL value, the AL value corresponding to the first candidate resource is not less than the second AL value, or the AL value corresponding to the first candidate resource is not greater than the second AL value; a first AL set, the first AL set including AL values ​​corresponding to multiple first candidate resources respectively; the resource type corresponding to the first candidate resource; the DCI format of the first DCI; the DCI size of the first DCI; and the Radio Network Temporary Identifier (RNTI) of the first DCI.

[0290] Optionally, determining the first information based on the relevant information of the first signal in the PDCCH includes: determining a first correspondence, the first correspondence including the correspondence between the relevant information of the first signal and the first information; determining the relevant information of the first signal based on the first signal in the PDCCH; and determining the first information based on the first correspondence and the relevant information of the first signal.

[0291] Optionally, determining the first information based on the relevant information of the first signal in the PDCCH includes: determining first indication information, wherein the first indication information is used to indicate the first information, and the first indication information is carried by the relevant information of the first signal, wherein the relevant information of the first signal is included in the PDCCH; and determining the first information based on the first indication information.

[0292] Figure 5B is a schematic diagram of the network device proposed in an embodiment of this disclosure. The network device is used to perform any of the above methods. In some embodiments, as shown in Figure 5B, the network device may include at least one of a transceiver module, a processing module, etc. The transceiver module is used to send a Physical Downlink Control Channel (PDCCH) to a terminal, wherein relevant information of a first signal in the PDCCH is used to determine first information, the first information being used to determine one or more first downlink control indications (DCIs), and the first DCI being the DCI that the terminal needs to detect in the PDCCH.

[0293] Optionally, the transceiver module is used to perform at least one of the communication steps such as sending and / or receiving performed by the network device in any of the above methods, which will not be elaborated here. Optionally, the processing module is used to perform at least one of the other steps performed by the network device in any of the above methods, which will not be elaborated here.

[0294] Optionally, the relevant information of the first signal includes at least one of the following: a first parameter, the first parameter being used to determine a first initial sequence value of the first signal; the first initial sequence value of the first signal; a first sequence of the first signal; a time-domain resource location of the first signal; a frequency-domain resource location of the first signal; a spatial-domain resource location of the first signal; and a first offset value, the first offset value being an offset between the first initial sequence value of the first signal and a second initial sequence value of the first signal; wherein different first signals correspond to different first initial sequence values, the first initial sequence value being used to determine the first sequence, and different first signals correspond to the same second initial sequence value.

[0295] Optionally, the first DCI is located in the first candidate resource, which is part or all of the resources occupied by the PDCCH;

[0296] The first information includes at least one of the following: a first aggregation level (AL) value, the first AL value including the AL value corresponding to the first candidate resource; a second AL value, the second AL value satisfying any of the following: the AL value corresponding to the first candidate resource is less than the second AL value, the AL value corresponding to the first candidate resource is greater than the second AL value, the AL value corresponding to the first candidate resource is not less than the second AL value, or the AL value corresponding to the first candidate resource is not greater than the second AL value; a first AL set, the first AL set including AL values ​​corresponding to multiple first candidate resources respectively; the resource type corresponding to the first candidate resource; the DCI format of the first DCI; the DCI size of the first DCI; and the Radio Network Temporary Identifier (RNTI) of the first DCI.

[0297] Optionally, there is a first correspondence between the relevant information of the first signal and the first information; the first correspondence is predefined by the protocol and / or determined by the network device.

[0298] Optionally, the relevant information of the first signal carries the first indication information, wherein the relevant information of the first signal is included in the PDCCH, and the first indication information is used to indicate the first information.

[0299] Figure 6A is a schematic diagram of the structure of the communication device 6100 proposed in an embodiment of this disclosure. The communication device 6100 can be a network device (e.g., access network device, core network device, etc.), a terminal (e.g., user equipment, etc.), a chip, chip system, or processor that supports the network device in implementing any of the above methods, or a chip, chip system, or processor that supports the terminal in implementing any of the above methods. The communication device 6100 can be used to implement the methods described in the above method embodiments; for details, please refer to the descriptions in the above method embodiments.

[0300] As shown in Figure 6A, the communication device 6100 is used to execute any of the above methods. In some embodiments, the communication device 6100 includes one or more processors 6101. The processor 6101 may be a general-purpose processor or a special-purpose processor, such as a baseband processor or a central processing unit. The baseband processor may be used to process communication protocols and communication data, and the central processing unit may be used to control communication devices (e.g., base stations, baseband chips, terminal devices, terminal device chips, DUs or CUs, etc.), execute programs, and process program data. Optionally, the communication device 6100 is used to execute any of the above methods. Optionally, one or more processors 6101 are used to invoke instructions to cause the communication device 6100 to execute any of the above methods.

[0301] In some embodiments, the communication device 6100 further includes one or more transceivers 6102. When the communication device 6100 includes one or more transceivers 6102, the transceiver 6102 performs at least one of the communication steps such as sending and / or receiving in the above-described method, and the processor 6101 performs at least one of the other steps. In optional embodiments, the transceiver may include a receiver and / or a transmitter, which may be separate or integrated. Optionally, the terms transceiver, transceiver unit, transceiver, transceiver circuit, interface circuit, interface, etc., can be used interchangeably; the terms transmitter, transmitting unit, transmitter, transmitting circuit, etc., can be used interchangeably; the terms receiver, receiving unit, receiver, receiving circuit, etc., can be used interchangeably.

[0302] In some embodiments, the communication device 6100 further includes one or more memories 6103 for storing data and / or instructions. Optionally, one or more processors 6101 are used to invoke instructions stored in the memory 6103 to cause the communication device 6100 to perform any of the above methods. Optionally, all or part of the memory 6103 may also be located outside the communication device 6100. In an optional embodiment, the communication device 6100 may include one or more interface circuits 6104. Optionally, the interface circuit 6104 is connected to the memory 6102 and can be used to receive data and / or instructions from the memory 6102 or other devices, and can be used to send data and / or instructions to the memory 6102 or other devices. For example, the interface circuit 6104 can read data and / or instructions stored in the memory 6102 and send the data and / or instructions to the processor 6101.

[0303] The communication device 6100 described in the above embodiments may be a network device or a terminal, but the scope of the communication device 6100 described in this disclosure is not limited thereto, and the structure of the communication device 6100 may not be limited by FIG. 6A. The communication device may be a standalone device or a part of a larger device. For example, the communication device may be: (1) a standalone integrated circuit IC, or chip, or chip system or subsystem; (2) a collection of one or more ICs, optionally, the IC collection may also include storage components for storing data, programs and / or instructions; (3) an ASIC, such as a modem; (4) a module that can be embedded in other devices; (5) a receiver, terminal device, smart terminal device, cellular phone, wireless device, handheld device, mobile unit, vehicle device, network device, cloud device, artificial intelligence device, etc.; (6) others, etc.

[0304] Figure 6B is a schematic diagram of the structure of chip 6200 according to an embodiment of this disclosure. For cases where the communication device 6100 can be a chip or a chip system, please refer to the schematic diagram of chip 6200 shown in Figure 6B, but it is not limited thereto.

[0305] Chip 6200 includes one or more processors 6201. Chip 6200 is used to perform any of the methods described above.

[0306] In some embodiments, chip 6200 further includes one or more interface circuits 6202. Optionally, terms such as interface circuit, interface, and transceiver pin can be used interchangeably. In some embodiments, chip 6200 further includes one or more memories 6203 for storing data and / or instructions. Optionally, all or part of the memories 6203 may be located outside of chip 6200. Optionally, interface circuit 6202 is connected to memory 6203, and interface circuit 6202 can be used to receive data and / or instructions from memory 6203 or other devices, and interface circuit 6202 can be used to send data and / or instructions to memory 6203 or other devices. For example, interface circuit 6202 can read data and / or instructions stored in memory 6203 and send the data and / or instructions to processor 6201.

[0307] In some embodiments, the interface circuit 6202 performs at least one of the communication steps, such as sending and / or receiving, in the above-described method. For example, the interface circuit 6202 performing the communication steps, such as sending and / or receiving, in the above-described method means that the interface circuit 6202 performs data and / or instruction interaction between the processor 6201, the chip 6200, the memory 6203, or the transceiver device. In some embodiments, the processor 6201 performs at least one of the other steps.

[0308] The modules and / or devices described in the various embodiments, such as virtual devices, physical devices, and chips, can be combined or separated arbitrarily as needed. Optionally, some or all steps can also be performed collaboratively by multiple modules and / or devices, which is not limited here.

[0309] This disclosure also proposes a storage medium storing instructions that, when executed on a communication device, cause the communication device to perform any of the above methods. Optionally, the storage medium is an electronic storage medium. Optionally, the storage medium is a computer-readable storage medium, but not limited thereto; it may also be a storage medium readable by other devices. Optionally, the storage medium may be a non-transitory storage medium, but not limited thereto; it may also be a temporary storage medium.

[0310] This disclosure also proposes a program product, including a program and / or instructions, which, when executed by a communication device, cause the communication device to perform any of the above methods. Optionally, the program product is a computer program product. Optionally, the program product is stored on the storage medium.

[0311] This disclosure also proposes a computer program that, when run on a computer, causes the computer to perform any of the above methods.

[0312] In the above embodiments, implementation can be achieved, in whole or in part, through software, hardware, firmware, or any combination thereof. When implemented in software, it can be implemented, in whole or in part, as a computer program product. The computer program product includes one or more computer programs. When the computer program is loaded and executed on a computer, all or part of the processes or functions described in the embodiments of this disclosure are generated. The computer can be a general-purpose computer, a special-purpose computer, a computer network, or other programmable device. The computer program can be stored in a computer-readable storage medium or transferred from one computer-readable storage medium to another. For example, the computer program can be transferred from one website, computer, server, or data center to another via wired (e.g., coaxial cable, fiber optic, Digital Subscriber Line (DSL)) or wireless (e.g., infrared, wireless, microwave, etc.) means. The computer-readable storage medium can be any available medium accessible to a computer or a data storage device such as a server or data center that integrates one or more available media. The available media may be magnetic media (e.g., floppy disks, hard disks, magnetic tapes), optical media (e.g., high-density digital video discs (DVDs)), or semiconductor media (e.g., solid-state drives (SSDs)).

[0313] Those skilled in the art will recognize that the units and algorithm steps of the various examples described in conjunction with the embodiments disclosed herein can be implemented in electronic hardware, or a combination of computer software and electronic hardware. Whether these functions are implemented in hardware or software depends on the specific application and design constraints of the technical solution. Those skilled in the art can use different methods to implement the described functions for each specific application, but such implementation should not be considered beyond the scope of this disclosure.

[0314] Those skilled in the art will understand that, for the sake of convenience and brevity, the specific working processes of the systems, devices, and units described above can be referred to the corresponding processes in the foregoing method embodiments, and will not be repeated here.

[0315] The above description is merely a specific embodiment of this disclosure, but the scope of protection of this disclosure is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the scope of the technology disclosed in this disclosure should be included within the scope of protection of this disclosure. Therefore, the scope of protection of this disclosure should be determined by the scope of the claims.

Claims

1. An information determination method characterized by comprising: The method, executed by a terminal, includes: Receive the Physical Downlink Control Channel (PDCCH) sent by the network device; First information is determined based on the relevant information of the first signal in the PDCCH, wherein the first information is used to determine one or more first downlink control indications (DCIs), and the first DCI is the DCI that the terminal needs to detect in the PDCCH.

2. The method of claim 1, wherein, The relevant information of the first signal includes at least one of the following: The first parameter is used to determine the first initial sequence value of the first signal; The first initial sequence value of the first signal; The first sequence of the first signal; The temporal resource location of the first signal; The frequency domain resource location of the first signal; The spatial resource location of the first signal; The first offset value is the offset between the first initial sequence value of the first signal and the second initial sequence value of the first signal. Different first signals correspond to different first initial sequence values, the first initial sequence values ​​are used to determine the first sequence, and different first signals correspond to the same second initial sequence value.

3. The method of claim 1 or 2, wherein, The first DCI is located in the first candidate resource, which is part or all of the resource occupied by the PDCCH; The first information includes at least one of the following: The first aggregation level AL value, wherein the first AL value includes the AL value corresponding to the first candidate resource; The second AL value satisfies any of the following: the AL value corresponding to the first candidate resource is less than the second AL value, the AL value corresponding to the first candidate resource is greater than the second AL value, the AL value corresponding to the first candidate resource is not less than the second AL value, and the AL value corresponding to the first candidate resource is not greater than the second AL value. The first AL set includes AL values ​​corresponding to multiple first candidate resources; The resource type corresponding to the first candidate resource; The DCI format of the first DCI; The DCI size of the first DCI; The first DCI's Radio Network Temporary Identifier (RNTI).

4. The method according to any one of claims 1 to 3, characterized in that, The determination of the first information based on the relevant information of the first signal in the PDCCH includes: Determine a first correspondence, which includes the correspondence between the relevant information of the first signal and the first information; The relevant information of the first signal is determined based on the first signal in the PDCCH; The first information is determined based on the first correspondence and the relevant information of the first signal.

5. The method of any one of claims 1-3, wherein, The determination of the first information based on the relevant information of the first signal in the PDCCH includes: First indication information is determined, the first indication information is used to indicate the first information, the first indication information is carried by the relevant information of the first signal, and the relevant information of the first signal is included in the PDCCH; The first information is determined based on the first indication information.

6. An information determination method characterized by comprising: Performed by a network device, the method includes: The Physical Downlink Control Channel (PDCCH) is sent to the terminal. The relevant information of the first signal in the PDCCH is used to determine the first information. The first information is used to determine one or more first downlink control indications (DCIs). The first DCI is the DCI that the terminal needs to detect in the PDCCH.

7. The method of claim 6, wherein, The relevant information of the first signal includes at least one of the following: The first parameter is used to determine the first initial sequence value of the first signal; The first initial sequence value of the first signal; The first sequence of the first signal; The temporal resource location of the first signal; The frequency domain resource location of the first signal; The spatial resource location of the first signal; The first offset value is the offset between the first initial sequence value of the first signal and the second initial sequence value of the first signal. Different first signals correspond to different first initial sequence values, the first initial sequence values ​​are used to determine the first sequence, and different first signals correspond to the same second initial sequence value.

8. The method of claim 6 or 7, wherein, The first DCI is located in the first candidate resource, which is part or all of the resource occupied by the PDCCH; The first information includes at least one of the following: The first aggregation level AL value, wherein the first AL value includes the AL value corresponding to the first candidate resource; The second AL value satisfies any of the following: the AL value corresponding to the first candidate resource is less than the second AL value, the AL value corresponding to the first candidate resource is greater than the second AL value, the AL value corresponding to the first candidate resource is not less than the second AL value, and the AL value corresponding to the first candidate resource is not greater than the second AL value. The first AL set includes AL values ​​corresponding to multiple first candidate resources; The resource type corresponding to the first candidate resource; The DCI format of the first DCI; The DCI size of the first DCI; The first DCI's Radio Network Temporary Identifier (RNTI).

9. The method of any one of claims 6-8, wherein, There is a first correspondence between the relevant information of the first signal and the first information; the first correspondence is predefined by the protocol and / or determined by the network device.

10. The method of any one of claims 6-8, wherein, The relevant information of the first signal carries first indication information, which is included in the PDCCH. The first indication information is used to indicate the first information.

11. A terminal, characterized by comprising: include: The transceiver module is used to receive the Physical Downlink Control Channel (PDCCH) sent by network devices. The processing module is configured to determine first information based on relevant information of the first signal in the PDCCH, wherein the first information is used to determine one or more first downlink control indications (DCIs), and the first DCI is the DCI that the terminal needs to detect in the PDCCH.

12. A network device, comprising: include: The transceiver module is used to send a Physical Downlink Control Channel (PDCCH) to the terminal. The relevant information of a first signal in the PDCCH is used to determine first information. The first information is used to determine one or more first downlink control indications (DCIs). The first DCI is the DCI that the terminal needs to detect in the PDCCH.

13. A communication device, characterized by include: One or more processors; The communication device is used to perform the method according to any one of claims 1 to 5.

14. A communication device, characterized by include: One or more processors; The communication device is used to perform the method according to any one of claims 6 to 10.

15. A communication system, characterized by The method includes a terminal and a network device, wherein the terminal is configured to implement the method according to any one of claims 1 to 5, and the network device is configured to implement the method according to any one of claims 6 to 10.

16. A storage medium, the storage medium storing instructions, wherein, When the instructions are executed on the communication device, the communication device performs the method as described in any one of claims 1 to 5.

17. A storage medium, the storage medium storing instructions, wherein, When the instruction is executed on the communication device, the communication device performs the method as described in any one of claims 6 to 10.

18. A program product, characterized by It includes a computer program that, when executed by a communication device, implements the method as described in any one of claims 1 to 5.

19. A program product, characterized by It includes a computer program that, when executed by a communication device, implements the method as described in any one of claims 6 to 10.

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