Communication method, communication device, storage medium, and program product

Abstract

The present disclosure relates to a communication method, a communication device, a storage medium and a program product, belonging to the technical field of communications. The method is executed by the communication device. The method comprises: determining at least one of a first capability and a second capability of a terminal, the first capability being used for indicating whether the terminal supports detection of a downlink reference signal, and the second capability being used for indicating a delay required by the terminal to detect the downlink reference signal. By means of determination of the first capability and / or the second capability of the terminal, the terminal detects the downlink reference signal before or during DCI detection, so as to obtain information related to the DCI detection, thereby achieving the purpose of reducing the frequency of DCI detections, further avoiding some invalid detections, and reducing detection complexity and energy consumption.

Description

Communication methods, communication equipment, storage media and software products Technical Field

[0001] This disclosure relates to the field of communication technology, and in particular to communication methods, communication devices, storage media, and program products. Background Technology

[0002] The terminal needs to obtain DCI information through blind detection of PDCCH. However, during the terminal's blind detection process, since it does not know the PDCCH carrying the valid DCI information, the number of blind detections is too large, which will lead to some invalid blind detections. Summary of the Invention

[0003] This disclosure provides a communication method, communication device, storage medium, and program product that can be used in the field of communication technology.

[0004] According to a first aspect of the present disclosure, a communication method is provided, performed by a communication device, comprising: determining at least one of a first capability and a second capability of a terminal, wherein the first capability is used to indicate whether the terminal supports the detection of a downlink reference signal, and the second capability is used to indicate the time delay required for the terminal to detect the downlink reference signal.

[0005] According to a second aspect of the present disclosure, a communication device is provided, including a transceiver; a memory; and a processor, respectively connected to the transceiver and the memory, configured to control the transmission and reception of wireless signals of the transceiver by executing computer-executable instructions on the memory, and capable of implementing the method described in any of the first aspects.

[0006] According to a third aspect of the present disclosure, a storage medium is provided that stores computer-executable instructions, which, when executed on a communication device, cause the communication device to perform the communication method described in any of the first aspects.

[0007] According to a fourth aspect of the present disclosure, a program product is provided, comprising at least one of a program and instructions, characterized in that, when the program and at least one of the instructions are executed by a communication device, they implement the communication method described in any one of the first aspects.

[0008] According to the communication method proposed in this disclosure, by determining the first capability and / or the second capability of the terminal, the terminal can detect the downlink reference signal during the DCI detection process or before blind DCI detection, thereby reducing the number of DCI detections and avoiding some invalid detections, and further reducing the complexity and energy consumption of detection. Attached Figure Description

[0009] To more clearly illustrate the technical solutions in the embodiments of this disclosure, the accompanying drawings required for the description of the embodiments are introduced below. The following drawings are only some embodiments of this disclosure and do not impose specific limitations on the protection scope of this disclosure.

[0010] Figure 1A is a schematic diagram of the architecture of a communication system provided according to an embodiment of the present disclosure;

[0011] Figure 1B is a flowchart of the PDCCh blind inspection process;

[0012] Figure 2A is an interactive schematic diagram of the communication method provided according to an embodiment of the present disclosure;

[0013] Figure 2B is an interactive schematic diagram of the communication method provided according to an embodiment of the present disclosure;

[0014] Figure 3 is an interactive schematic diagram of the communication method provided according to an embodiment of the present disclosure;

[0015] Figure 4A is a schematic diagram of the structure of a terminal provided according to an embodiment of the present disclosure;

[0016] Figure 4B is a schematic diagram of the structure of a network device provided according to an embodiment of the present disclosure;

[0017] Figure 5A is a schematic diagram of the structure of a communication device according to an embodiment of the present disclosure;

[0018] Figure 5B is a schematic diagram of the chip structure proposed in an embodiment of this disclosure. Detailed Implementation

[0019] This disclosure provides a communication method, communication device, storage medium, and program product.

[0020] In a first aspect, embodiments of this disclosure provide a communication method performed by a communication device, comprising: determining at least one of a first capability and a second capability of a terminal, wherein the first capability is used to indicate whether the terminal supports the detection of a downlink reference signal, and the second capability is used to indicate the time delay required for the terminal to detect the downlink reference signal.

[0021] In the above embodiments, by determining the terminal's first capability and / or second capability, the terminal can detect the downlink reference signal during the DCI detection process, thereby reducing the number of DCI detections and avoiding some invalid detections, further reducing the complexity and energy consumption of the detection.

[0022] In conjunction with some embodiments of the first aspect, in some embodiments, detecting a downlink reference signal includes at least one of the following: listening to sequences of different downlink reference signals; listening to time-domain and / or frequency-domain resource locations of different downlink reference signals; listening to downlink reference signals mapped to different starting resource elements (REs); listening to the number of sequences of different downlink reference signals; listening to the number of time-domain and / or frequency-domain resource locations of different downlink reference signals; and listening to the number of downlink reference signals mapped to different starting resource elements.

[0023] In the above embodiments, the terminal can detect downlink reference signals to obtain prior information for DCI detection, thereby reducing the number of DCI detections and avoiding some invalid detections, thus reducing the complexity and energy consumption of detection.

[0024] In conjunction with some embodiments of the first aspect, in some embodiments, the communication device is a terminal, wherein, when the terminal does not transmit the first capability to the network device, the terminal is expected to perform at least one of the following: not being able to listen to sequences of different downlink reference signals; not being able to listen to time-domain and / or frequency-domain resource locations of different downlink reference signals; not being able to listen to downlink reference signals mapped to different starting resource elements (REs); being able to listen to sequences of first downlink reference signals, the sequences of which are predefined by a protocol; being able to listen to time-domain and / or frequency-domain resource locations of first downlink reference signals, the time-domain and / or frequency-domain resource locations of which are predefined by a protocol; being able to listen to downlink reference signals mapped to a first starting RE, the location of which is predefined by a protocol; being able to listen to a number of sequences of different downlink reference signals; being able to listen to a number of time-domain and / or frequency-domain resource locations of different downlink reference signals; and being able to listen to a number of downlink reference signals mapped to different starting resource elements.

[0025] In conjunction with some embodiments of the first aspect, in some embodiments, the communication device is a network device, wherein, in the event that the network device does not receive a first capability transmitted by the terminal, the network device is expected to perform at least one of the following: not transmitting a sequence of different downlink reference signals; not transmitting time-domain and / or frequency-domain resource locations of different downlink reference signals; not transmitting downlink reference signals mapped to different starting resource elements (REs); transmitting a sequence of first downlink reference signals, the sequence of which is predefined by a protocol; transmitting time-domain and / or frequency-domain resource locations of the first downlink reference signals, the time-domain and / or frequency-domain resource locations of which are predefined by a protocol; transmitting downlink reference signals mapped to a first starting RE, the location of which is predefined by a protocol; a number of sequences of different downlink reference signals; a number of time-domain and / or frequency-domain resource locations of different downlink reference signals; and a number of downlink reference signals mapped to different starting resource elements (REs).

[0026] In the above embodiments, when the terminal does not report the first capability to the network device, the expected behavior of the terminal and the network device is determined so that the terminal can detect the downlink reference signal based on the first capability, thereby further reducing the number of DCI detections, avoiding some invalid detections, and reducing detection complexity and energy consumption.

[0027] In conjunction with some embodiments of the first aspect, in some embodiments, the communication device is a terminal, wherein, in the absence of the terminal transmitting a second capability to the network device, the terminal is expected to perform at least one of the following: determining the time delay required to listen to sequences of different downlink reference signals as a preset value; determining the time delay required to listen to time-domain and / or frequency-domain resource locations of different downlink reference signals as a preset value; determining the time delay required to listen to downlink reference signals mapped to different starting REs as a preset value.

[0028] In conjunction with some embodiments of the first aspect, in some embodiments, the communication device is a network device, wherein, in the absence of the network device receiving the second capability sent by the terminal, the network device is expected to perform at least one of the following: determining the time delay required for the terminal to listen to different sequences of downlink reference signals as a preset value; determining the time delay required for the terminal to listen to different time-domain and / or frequency-domain resource locations of the downlink reference signals as a preset value; determining the time delay required for the terminal to listen to downlink reference signals mapped to different starting REs as a preset value.

[0029] In the above embodiments, when the terminal does not report the second capability to the network device, the expected behavior of the terminal and the network device is determined so that the terminal can detect the downlink reference signal, thereby further reducing the number of DCI detections, avoiding some invalid detections, and reducing detection complexity and energy consumption.

[0030] In conjunction with some embodiments of the first aspect, in some embodiments, the communication device is a terminal, and determining whether the terminal has at least one of the first capability and the second capability includes: determining whether the terminal has at least one of the first capability and the second capability based on a predefined protocol; the communication device is a network device, and determining whether the terminal has at least one of the first capability and the second capability includes: determining whether the terminal has at least one of the first capability and the second capability based on a predefined protocol, or based on whether at least one of the first capability and the second capability sent by the terminal is received.

[0031] In conjunction with some embodiments of the first aspect, in some embodiments, at least one of the first capability and the second capability is predefined by the protocol.

[0032] In conjunction with some embodiments of the first aspect, in some embodiments, the communication device is a terminal, and the method further includes: sending at least one of a first capability and a second capability to a network device; or, the communication device is a network device, and the method further includes: receiving at least one of a first capability and a second capability sent by the terminal.

[0033] In conjunction with some embodiments of the first aspect, in some embodiments, the communication device is a terminal, the terminal having at least one of a first capability and a second capability, and the method further includes: not sending at least one of the first capability and the second capability to the network device; or the communication device is a network device, and the method further includes: not expecting to receive at least one of the first capability and the second capability sent by the terminal.

[0034] In the above embodiments, it is determined whether the terminal has a first capability and / or a second capability, so that the terminal can detect the downlink reference signal, realize the detection of DCI, reduce the number of detections, avoid some invalid detections, and achieve the purpose of reducing detection complexity and energy consumption.

[0035] In a second aspect, embodiments of this disclosure provide a communication device, including: a transceiver; a memory; and a processor, respectively connected to the transceiver and the memory, configured to control the transmission and reception of wireless signals of the transceiver by executing computer-executable instructions on the memory, so that the communication device performs the method described in any embodiment of the first aspect of this disclosure.

[0036] Thirdly, embodiments of this disclosure provide a communication system, including: a terminal and a network device, wherein the terminal is configured to implement the method executed by the terminal as described in any embodiment of the first aspect of this disclosure; and the network device is configured to implement the method executed by the network device as described in any embodiment of the first aspect of this disclosure.

[0037] Fourthly, 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 any of the embodiments of the first aspect of this disclosure.

[0038] Fifthly, embodiments of this disclosure provide a program product that, when executed by a communication device, causes the communication device to perform the method described in the optional implementation of the first aspect.

[0039] In a sixth aspect, embodiments of this disclosure provide a computer program that, when run on a computer, causes the computer to perform the method as described in an alternative implementation of the first aspect.

[0040] In a seventh aspect, embodiments of this disclosure provide a chip or chip system. The chip or chip system includes processing circuitry configured to perform the method described in the optional implementation of the first aspect above.

[0041] It is understood that the aforementioned communication equipment, communication system, storage medium, program product, etc., 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.

[0042] This disclosure provides a communication method, a communication device, a communication system, a storage medium, and a program product. In some embodiments, terms such as communication method and information processing method may be used interchangeably.

[0043] 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. In all embodiments of this disclosure, unless otherwise specified or logically conflicting, the terminology and / or descriptions between the embodiments are consistent and can be mutually referenced. Technical features in different embodiments can be combined to form new embodiments based on their inherent logical relationships.

[0044] 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.

[0045] In this embodiment of the disclosure, unless otherwise stated, elements expressed in the singular form, such as "a," "an," "the," "the," "the," "the," "the," "the," "this," etc., can mean "one and only one," or "one or more," "at least one," etc. For example, when using articles such as "a," "an," "the," etc. in translation, the noun following the article can be understood as either a singular expression or a plural expression.

[0046] In the embodiments disclosed herein, "multiple" refers to two or more.

[0047] In some embodiments, the terms "at least one of A or B, at least one of A and B", "one or more", "a plurality of", "multiple" and the like can be used interchangeably.

[0048] In some embodiments, the notation "at least one of A and B", "A and / or B", "A in one case, B in another", "in response to one case A, in response to another case B", etc., may include the following technical solutions depending on the situation: in some embodiments, A (execute A regardless of whether there is a branch B); in some embodiments, B (execute B regardless of whether there is a branch A); in some embodiments, execution is selected from A and B (A and B are selectively executed); in some embodiments, both A and B are executed. The same applies when there are more branches such as A, B, C, etc.

[0049] In some embodiments, the notation "A or B" may include the following technical solutions, depending on the situation: in some embodiments, A (execute A regardless of whether a branch B exists); in some embodiments, B (execute B regardless of whether a branch A exists); in some embodiments, execution is selected from A and B (A and B are selectively executed). The same applies when there are more branches such as A, B, and C.

[0050] The prefixes "first," "second," etc., used in the embodiments of this disclosure are merely for distinguishing different descriptive objects and do not impose restrictions on the position, order, priority, quantity, or content of the descriptive objects. The description of the descriptive objects is found in the claims or the context of the embodiments, and the use of prefixes should not constitute unnecessary restrictions. For example, if the descriptive object is a "field," the ordinal numbers preceding "field" in "first field" and "second field" do not restrict the position or order of the "fields." "First" and "second" do not restrict whether the "fields" they modify are in the same message, nor do they restrict the order of "first field" and "second field." Similarly, if the descriptive object is a "level," the ordinal numbers preceding "level" in "first level" and "second level" do not restrict the priority between "levels." Furthermore, the number of descriptive objects is not limited by ordinal numbers and can be one or more. For example, in "first device," the number of "devices" can be one or more. Furthermore, the objects modified by different prefixes can be the same or different. For example, if the object being described is "device", then "first device" and "second device" can be the same device or different devices, and their types can be the same or different. Similarly, if the object being described is "information", then "first information" and "second information" can be the same information or different information, and their content can be the same or different.

[0051] In some embodiments, “including A,” “containing A,” “for indicating A,” and “carrying A” can be interpreted as directly carrying A or indirectly indicating A.

[0052] In some embodiments, terms such as "time / frequency" and "time-frequency domain" refer to the time domain and / or frequency domain.

[0053] In some embodiments, terms such as “in response to…”, “in response to determining…”, “in the case of…”, “when…”, “when…”, “if…”, etc. can be used interchangeably. These descriptions all refer to the device making a corresponding action under certain objective circumstances. They do not necessarily limit the time, nor do they require the device to make a judgment action when implementing it, nor do they mean that there must be other limitations.

[0054] In some embodiments, the terms “greater than,” “greater than or equal to,” “not less than,” “more than,” “more than or equal to,” “not less than,” “higher than,” “higher than or equal to,” “not lower than,” and “above” can be used interchangeably, as can the terms “less than,” “less than or equal to,” “not greater than,” “less than,” “less than or equal to,” “not more than,” “lower than,” “lower than or equal to,” “not higher than,” and “below”.

[0055] In some embodiments, devices, etc., may be interpreted as physical or virtual, and their names are not limited to those described in the embodiments. Terms such as “device,” “equipment,” “circuit,” “network element,” “network function,” “network device,” “function,” “node,” “unit,” “section,” “system,” “network,” “chip,” “chip system,” “entity,” and “subject” are interchangeable.

[0056] In some embodiments, "network" can be interpreted as devices included in a network (e.g., access network devices, core network devices, etc.).

[0057] In some embodiments, the terms "access network device (AN device)," "radio access network device (RAN device)," "base station (BS)," "radio base station," "fixed station," "node," "access point," "transmission point (TP)," "reception point (RP)," "transmission / reception point (TRP)," "panel," "antenna panel," "antenna array," "cell," "macro cell," "small cell," "femto cell," "pico cell," "sector," "cell group," "serving cell," "carrier," "component carrier," and "bandwidth part (BWP)" can be used interchangeably.

[0058] In some embodiments, the terms "terminal", "terminal device", "user equipment (UE)", "user terminal", "mobile station (MS)", "mobile terminal (MT)", "subscriber station", "mobile unit", "subscriber unit", "wireless unit", "remote unit", "mobile device", "wireless device", "wireless communication device", "remote device", "mobile subscriber station", "access terminal", "mobile terminal", "wireless terminal", "remote terminal", "handset", "user agent", "mobile client", and "client" can be used interchangeably.

[0059] In some embodiments, access network devices, core network devices, or network devices can be replaced by terminals. For example, embodiments of this disclosure can also be applied to structures where communication between access network devices, core network devices, or network devices and terminals is replaced by communication between multiple terminals (e.g., device-to-device (D2D), vehicle-to-everything (V2X), etc.). In this case, the structure can also be configured such that the terminal has all or part of the functions of the access network device. Furthermore, terms such as "uplink" and "downlink" can be replaced with terms corresponding to communication between terminals (e.g., "sidelink"). For example, uplink channel, downlink channel, etc., can be replaced with sidelink channel, and uplink link, downlink, etc., can be replaced with sidelink link.

[0060] In some embodiments, the terminal may be replaced by an access network device, a core network device, or a network device. In this case, the access network device, core network device, or network device may also be configured to have all or some of the functions of the terminal.

[0061] In some embodiments, the acquisition of data, information, etc., may comply with the laws and regulations of the country where the location is situated.

[0062] In some embodiments, data, information, etc., may be obtained with the user's consent.

[0063] Furthermore, each element, each row, or each column in the table of this disclosure can be implemented as an independent embodiment, and any combination of any element, any row, or any column can also be implemented as an independent embodiment.

[0064] The method proposed in this disclosure is applicable to various communication systems, including but not limited to 4G, 5G, 5G-advance and subsequent communication technologies (such as 6G).

[0065] Figure 1A is a schematic diagram of the architecture of a communication system according to an embodiment of the present disclosure.

[0066] As shown in Figure 1A, the communication system 100 includes a terminal 101 and a network device 102.

[0067] In some embodiments, terminal 101 may perform downlink control information (DCI) detection.

[0068] In some embodiments, terminal 101 can detect a downlink reference signal.

[0069] In some embodiments, terminal 101 has a first capability, which indicates whether the terminal supports detecting downlink reference signals.

[0070] In some embodiments, terminal 101 has a second capability that indicates the time delay required for the terminal to detect a downlink reference signal.

[0071] In some embodiments, terminal 101 may transmit a first capability and / or a second capability.

[0072] In some embodiments, terminal 101 may not transmit the first capability and / or the second capability.

[0073] In some embodiments, terminal 101 may be an intermediate node. An intermediate node includes at least one of a terminal, UE, repeater, transponder, integrated access, and backhaul IAB node.

[0074] In some embodiments, the name of the terminal 101 is not limited, and may be, for example, "device with first capability", "device with second capability", "DCI detection device", "device for detecting downlink reference signal", etc., and this disclosure does not limit it.

[0075] In some embodiments, network device 102 may receive a first capability and / or a second capability.

[0076] In some embodiments, network device 102 may determine whether a terminal has a first capability and / or a second capability.

[0077] In some embodiments, network device 102 may send downlink reference signals.

[0078] In some embodiments, network device 102 may be a gNB.

[0079] In some embodiments, the name of the network device 102 is not limited, and may be, for example, "device for transmitting downlink reference signals," "device for determining whether a terminal has a first capability and / or a second capability," etc., and this disclosure does not limit it.

[0080] 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, 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.

[0081] 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 eNB (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.

[0082] 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.

[0083] 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 of the protocol layer functions are centrally controlled by the CU, while the remaining part or all of the protocol layer functions are distributed in the DU and centrally controlled by the CU. However, this is not the only possibility.

[0084] In some embodiments, the core network equipment may be a single device, including a first network element, a second network element, etc., or it may be multiple devices or a group of devices, each including all or part of the first network element, the second network element, etc. Network elements may be virtual or physical. The core network may include, for example, at least one of the Evolved Packet Core (EPC), 5G Core Network (5GCN), and Next Generation Core (NGC).

[0085] 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.

[0086] The following embodiments of this disclosure can be applied to the communication system 100 shown in FIG1A, or to some of the main bodies, but are not limited thereto. The main bodies shown in FIG1A are illustrative. The communication system may include all or some of the main bodies in FIG1A, or it may include other main bodies outside of FIG1A. The number and form of each main body are arbitrary. Each main body may be physical or virtual. 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.

[0087] 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 communication 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).

[0088] 1. NR PDCCH: In NR, to improve link performance through beamforming, optimize PDCCH reference signal design, simplify base station scheduling, and save power consumption of base stations and terminals, 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).

[0089] 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.

[0090] 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 UE'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 UEs and the PDSCH of the current UE is more complex, requiring information on PDCCH resources occupied by other UEs, and further resolution through rate matching and other methods.

[0091] 2. NR PDCCH Blind Detection: NR service channels employ a mechanism where multiple users and services 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 DCI's location 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, indicated by 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.

[0092] 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 UE'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.

[0093] The PDCCH blind detection process can be illustrated in Figure 1B. In the current mechanism, the UE receives DCI through blind detection, which is a major reason for the high complexity and energy consumption of the UE implementation. In addressing the issue of reducing the number of blind DCI detections by the UE, this is one of the main evaluation metrics. One approach is for the UE to determine the prior information for PDCCH blind detection, enabling it to avoid some invalid blind detections and thus reduce the number of blind detections. However, determining the prior information requires the UE to perform additional operations, such as determining the time-frequency resource location of the blind DMRS or different sequences of the blind DMRS. These require the UE to have additional blind detection capabilities to ensure that it can complete the corresponding detection work and obtain the prior information before the formal blind DCI detection.

[0094] This disclosure defines a first UE capability to ensure that the UE supports acquiring PDCCH blind detection prior information. Additionally, it defines the expected behavior of the base station if the UE fails to report this capability. A second UE capability is also defined to ensure that the UE has sufficient time to acquire PDCCH blind detection prior information. Furthermore, it defines the expected behavior of the base station if the UE reports this capability.

[0095] Therefore, this disclosure proposes a communication method, communication device, storage medium, and program product, which determines whether the terminal has a first capability and / or a second capability by using a terminal and a network device respectively, in order to determine the behavior expected to be performed by the terminal and the network device, enabling the terminal to detect downlink reference signals and determine blind detection prior information for DCI detection, thereby reducing the number of DCI detections and avoiding some invalid detections, in order to reduce detection complexity and energy consumption.

[0096] Figure 2A is an interactive schematic diagram of a communication method according to an embodiment of the present disclosure. As shown in Figure 2A, the embodiments of the present disclosure relate to a communication method. In the embodiments of the present disclosure, the terminal does not report a first capability and / or a second capability to the network device. The method includes:

[0097] Step S2101: The terminal determines the first capability and / or the second capability.

[0098] In some embodiments, the terminal determines a first capability and / or a second capability based on a protocol predefined, wherein the first capability is used to indicate whether the terminal supports the detection of a downlink reference signal, and the second capability is used to indicate the time delay required for the terminal to detect the downlink reference signal.

[0099] In some embodiments, the first capability may be a first terminal capability, and the second capability may be a second terminal capability. The names of the first capability and the second capability are not limited in this disclosure.

[0100] For example, the terminal determines the DCI sent by the gNB through blind detection. The terminal reports the first terminal capability to the base station, or, if the first terminal capability is necessary (i.e., the terminal does not need to report this terminal capability to the base station), based on the terminal capability, the terminal needs to determine the PDCCH blind detection prior information before blindly detecting the DCI, or during the blind detection of the DCI, the terminal needs to determine the PDCCH blind detection prior information. The PDCCH blind detection prior information includes at least one of the first prior information and the second prior information. The terminal capability includes the first terminal capability and the second terminal capability.

[0101] In some embodiments, the protocol predefines the capabilities of the terminal. The capabilities of the terminal may be a first capability and / or a second capability, or other capabilities. The terminal determines the first capability and / or the second capability according to the protocol predefinement and needs to report the capabilities it has to the network device.

[0102] For example, the terminal determines the first terminal capability and / or the second terminal capability according to the protocol predefined, and needs to report the first terminal capability and / or the second terminal capability to the network device.

[0103] In some embodiments, the protocol predefines that the terminal has a first capability and / or a second capability. The terminal may not send the first capability and / or the second capability to the network device, or the network device may not expect to receive the first capability and / or the second capability sent by the terminal.

[0104] For example, according to the protocol predefined, the terminal has a first terminal capability and / or a second terminal capability, but the terminal may or may not report its terminal capabilities.

[0105] In some embodiments, the terminal determines a first capability based on protocol predefined definitions. For example, the protocol predefined a first terminal capability, which is used to indicate whether the UE supports pre-detection DMRS. The pre-detection DMRS includes at least one of the following: listening to different DMRS sequences, listening to different PDCCH DMRS patterns, listening to PDCCH DMRS mapped to different starting REs, listening to a number of different DMRS sequences, listening to a number of different PDCCH DMRS patterns, and listening to a number of PDCCH DMRS mapped to different starting REs. When the UE does not report the first terminal capability, the UE is expected to be unable to pre-detect DMRS.

[0106] In some embodiments, the terminal determines a first capability based on a protocol predefined definition, the first capability indicating whether the terminal supports the detection of downlink reference signals.

[0107] For example, the protocol predefines a first terminal capability, which indicates whether the UE can listen to different DMRS sequences. Different DMRS sequences include at least one of the following: different DMRS initial sequences, different DMRS sequences, different DMRS initial sequence lengths, and different DMRS sequence lengths.

[0108] In some embodiments, the terminal determines a first capability based on a protocol predefined definition, the first capability indicating that the terminal supports the detection of downlink reference signals.

[0109] For example, the protocol predefines a first terminal capability, which is used to indicate that the UE can listen to different DMRS sequences. Different DMRS sequences include at least one of different DMRS initial sequences, different DMRS sequences, different DMRS initial sequence lengths, and different DMRS sequence lengths.

[0110] In some embodiments, detecting a downlink reference signal includes at least one of the following: listening to sequences of different downlink reference signals; listening to time-domain and / or frequency-domain resource locations of different downlink reference signals; listening to downlink reference signals mapped to different starting resource elements (REs); listening to the number of sequences of different downlink reference signals; listening to the number of time-domain and / or frequency-domain resource locations of different downlink reference signals; and listening to the number of downlink reference signals mapped to different starting resource elements.

[0111] In some embodiments, if the terminal does not send the first capability to the network device, the terminal is expected to perform at least one of the following: not listening to sequences of different downlink reference signals; not listening to time-domain and / or frequency-domain resource locations of different downlink reference signals; not listening to downlink reference signals mapped to different starting resource elements (REs); being able to listen to sequences of first downlink reference signals, the sequence of which is predefined by the protocol; being able to listen to time-domain and / or frequency-domain resource locations of the first downlink reference signals, the time-domain and / or frequency-domain resource locations of which are predefined by the protocol; being able to listen to downlink reference signals mapped to a first starting RE, the location of which is predefined by the protocol; being able to listen to a number of sequences of different downlink reference signals; being able to listen to a number of time-domain and / or frequency-domain resource locations of different downlink reference signals; and being able to listen to a number of downlink reference signals mapped to different starting resource elements (REs).

[0112] In some embodiments, the terminal determines a first capability based on a predefined protocol. The first capability indicates whether the terminal supports the detection of downlink reference signals, where the downlink reference signal is DMRS. Without sending the first capability to the network device, the terminal is expected not to listen to different sequences of downlink reference signals.

[0113] For example, the protocol predefines a first terminal capability, which indicates whether the UE can listen to different DMRS sequences. Different DMRS sequences include at least one of the following: different DMRS initial sequences, different DMRS sequences, different DMRS initial sequence lengths, and different DMRS sequence lengths. When the UE does not report the first terminal capability, the UE is expected not to be able to listen to different DMRS sequences.

[0114] In some embodiments, the terminal determines a first capability based on a protocol predefined sequence. The first capability indicates whether the terminal supports detecting downlink reference signals. If the terminal does not send the first capability to the network device, the terminal is expected to be able to listen to the sequence of the first downlink reference signals, which is predefined by the protocol.

[0115] For example, the protocol predefines a first terminal capability, which indicates whether the UE can listen to different DMRS sequences. When the UE does not report the first terminal capability, the UE is expected to only be able to listen to the first DMRS sequence. The first DMRS sequence is predefined by the protocol and includes at least one of the following: a predefined first DMRS initial sequence, a first DMRS sequence, a first length of the DMRS initial sequence, and a first length of the DMRS sequence.

[0116] In some embodiments, the terminal determines a first capability based on a predefined protocol. The first capability indicates that the terminal supports the detection of downlink reference signals. If the terminal does not send the first capability to the network device, the terminal is expected not to be able to listen to different sequences of downlink reference signals.

[0117] For example, the protocol predefines a first terminal capability, which instructs the UE to listen to different DMRS sequences. Different DMRS sequences include at least one of: different DMRS initial sequences, different DMRS sequences, different DMRS initial sequence lengths, and different DMRS sequence lengths. When the UE does not report the first terminal capability, the UE is expected not to be able to listen to different DMRS sequences.

[0118] In some embodiments, the terminal determines a first capability based on a protocol predefined sequence. The first capability indicates that the terminal supports the detection of downlink reference signals. If the terminal does not send the first capability to the network device, the terminal is expected to be able to listen to the sequence of the first downlink reference signals, which is predefined by the protocol.

[0119] For example, the protocol predefines a first terminal capability, which indicates that the UE can listen to different DMRS sequences. When the UE does not report the first terminal capability, the UE is expected to only be able to listen to the first DMRS sequence. The first DMRS sequence is predefined by the protocol and includes at least one of the following: a predefined first DMRS initial sequence, a first DMRS sequence, a first length of the DMRS initial sequence, and a first length of the DMRS sequence.

[0120] In some embodiments, the terminal determines a first capability based on a protocol predefined definition. The first capability indicates whether the terminal supports the detection of a downlink reference signal, which is a DMRS. If the terminal does not send the first capability to the network device, the terminal is expected not to listen to the time-domain and / or frequency-domain resource locations of different downlink reference signals.

[0121] In some embodiments, the time-domain and / or frequency-domain resource location of the downlink reference signal may be the PDCCH DMRS pattern.

[0122] For example, the protocol predefines a first terminal capability, which indicates whether the UE can listen to different PDCCH DMRS patterns. A PDCCH DMRS pattern includes at least one of a time-domain pattern, a frequency-domain pattern, a time-frequency-domain pattern, and an air interface pattern. When the UE does not report the first terminal capability, the UE is expected not to be able to listen to different PDCCH DMRS patterns.

[0123] In some embodiments, the terminal determines a first capability based on a protocol predefined definition. The first capability indicates whether the terminal supports detecting a downlink reference signal, which is a DMRS. Without sending the first capability to the network device, the terminal is expected to be able to listen to the time-domain and / or frequency-domain resource location of the first downlink reference signal, which is predefined by the protocol.

[0124] For example, the protocol predefines a first terminal capability, which indicates whether the UE can listen to different PDCCH DMRS patterns. A PDCCH DMRS pattern includes at least one of a time-domain pattern, a frequency-domain pattern, a time-frequency-domain pattern, and an air interface pattern. When the UE does not report the first terminal capability, the UE is expected to only be able to listen to the first PDCCH DMRS pattern. The first PDCCH DMRS pattern is predefined by the protocol.

[0125] In some embodiments, the terminal determines a first capability based on a protocol predefined definition. The first capability indicates that the terminal supports the detection of a downlink reference signal, which is a DMRS. Without sending the first capability to the network device, the terminal is expected not to listen to the time-domain and / or frequency-domain resource locations of different downlink reference signals.

[0126] For example, the protocol predefines a first terminal capability, which indicates that the UE can listen to different PDCCH DMRS patterns. A PDCCH DMRS pattern includes at least one of a time-domain pattern, a frequency-domain pattern, a time-frequency-domain pattern, and an air interface pattern. When the UE does not report the first terminal capability, the UE is expected not to be able to listen to different PDCCH DMRS patterns.

[0127] In some embodiments, the terminal determines a first capability based on a protocol predefined definition. The first capability indicates that the terminal supports the detection of a downlink reference signal, which is a DMRS. Without sending the first capability to the network device, the terminal is expected to be able to listen to the time-domain and / or frequency-domain resource locations of the first downlink reference signal, which are predefined by the protocol.

[0128] For example, the protocol predefines a first terminal capability, which indicates that the UE can listen to different PDCCH DMRS patterns. A PDCCH DMRS pattern includes at least one of a time-domain pattern, a frequency-domain pattern, a time-frequency-domain pattern, and an air interface pattern. When the UE does not report the first terminal capability, the UE is expected to only be able to listen to the first PDCCH DMRS pattern. The first PDCCH DMRS pattern is predefined by the protocol.

[0129] In some embodiments, the terminal determines a first capability based on a protocol predefined definition. The first capability indicates whether the terminal supports detecting a downlink reference signal, which is a DMRS. If the terminal does not send the first capability to the network device, the terminal is expected not to listen to downlink reference signals mapped to different starting resource elements (REs).

[0130] For example, the protocol predefines a first terminal capability, which indicates whether the UE can listen to PDCCH DMRS mapped to different starting REs. When the UE does not report the first terminal capability, the UE is expected not to be able to listen to PDCCH DMRS mapped to different starting REs.

[0131] In some embodiments, the terminal determines a first capability based on a protocol predefined value. The first capability indicates whether the terminal supports the detection of a downlink reference signal, which is a DMRS. Without sending the first capability to the network device, the terminal is expected to be able to listen to the downlink reference signal mapped to a first starting RE, the location of which is predefined by the protocol.

[0132] For example, the protocol predefines a first terminal capability, which indicates whether the UE can listen to PDCCH DMRS mapped to different starting REs. When the UE does not report the first terminal capability, the UE is expected to only be able to listen to PDCCH DMRS starting at position n. n is predefined by the protocol and can take the value of 0, 1, 2, 3, 4, or 5.

[0133] In some embodiments, the terminal determines a first capability based on a protocol predefined definition. The first capability indicates that the terminal supports the detection of downlink reference signals, where the downlink reference signal is DMRS. Without sending the first capability to the network device, the terminal is expected not to listen to downlink reference signals mapped to different starting resource elements (REs).

[0134] For example, the protocol predefines a first terminal capability, which indicates that the UE can listen to PDCCH DMRS mapped to different starting REs. When the UE does not report the first terminal capability, the UE is expected not to be able to listen to PDCCH DMRS mapped to different starting REs.

[0135] In some embodiments, the terminal determines a first capability based on a protocol predefined definition. The first capability indicates that the terminal supports the detection of a downlink reference signal, which is a DMRS. Without sending the first capability to the network device, the terminal is expected to be able to listen to the downlink reference signal mapped to a first starting RE, the location of which is predefined by the protocol.

[0136] For example, the protocol predefines a first terminal capability, which indicates that the UE can listen to PDCCH DMRS mapped to different starting REs. When the UE does not report the first terminal capability, the UE is expected to only be able to listen to PDCCH DMRS starting at position n. n is predefined by the protocol and can take the value of 0, 1, 2, 3, 4, or 5.

[0137] In some embodiments, the terminal determines a first capability based on a predefined protocol. The first capability indicates whether the terminal supports the detection of downlink reference signals, where the downlink reference signal is DMRS. Without sending the first capability to the network device, the terminal is expected to be able to listen to the number of different downlink reference signal sequences.

[0138] For example, the protocol predefines a first terminal capability, which indicates whether the UE can listen to the number of different DMRS sequences. Different DMRS sequences include at least one of the following: different DMRS initial sequences, different DMRS sequences, different DMRS initial sequence lengths, and different DMRS sequence lengths. When the UE does not report the first terminal capability, the UE is expected to be able to listen to a number of different DMRS sequences of value n. n is predefined by the protocol and takes the value 0, 1, 2, 3, 4, or 5.

[0139] In some embodiments, the terminal determines a first capability based on a protocol predefined definition. The first capability indicates whether the terminal supports the detection of downlink reference signals. Without sending the first capability to the network device, the terminal is expected to be able to listen to the number of time-domain and / or frequency-domain resource locations of different downlink reference signals.

[0140] For example, the protocol predefines a first terminal capability, which indicates whether the UE can listen to a number of different PDCCH DMRS patterns. A PDCCH DMRS pattern includes at least one of a time-domain pattern, a frequency-domain pattern, a time-frequency-domain pattern, and an air interface pattern. When the UE does not report the first terminal capability, the UE is expected to be able to listen to n different PDCCH DMRS patterns. n is predefined by the protocol and can take the value 0, 1, 2, 3, 4, or 5.

[0141] In some embodiments, the terminal determines a first capability based on a protocol predefined definition. The first capability indicates whether the terminal supports detecting downlink reference signals. Without sending the first capability to the network device, the terminal is expected to be able to listen to the number of downlink reference signals mapped to different starting resource elements (REs).

[0142] For example, the protocol predefines a first terminal capability, which indicates whether the UE can listen to the number of different starting REs mapped to PDCCH DMRS. When the UE does not report the first terminal capability, the UE is expected to only be able to listen to the number n of different starting REs mapped to PDCCH DMRS. n is predefined by the protocol and can take the value of 0, 1, 2, 3, 4, or 5.

[0143] In some embodiments, the terminal determines that it has a second capability based on a protocol predefined, the second capability being used to indicate the time delay required for the terminal to detect the downlink reference signal.

[0144] In some embodiments, the protocol-predefined terminal may have a second capability, or the protocol-predefined terminal may not have a second capability.

[0145] For example, the protocol predefines a second terminal capability used to indicate the additional latency required for the UE to listen to a DMRS sequence. The DMRS sequence includes at least one of the DMRS initiation sequence and DMRS sequences. In some embodiments, if the terminal does not send the second capability to the network device, the terminal is expected to perform at least one of the following: determine the latency required to listen to sequences of different downlink reference signals as a preset value; determine the latency required to listen to time-domain and / or frequency-domain resource locations of different downlink reference signals as a preset value; determine the latency required to listen to downlink reference signals mapped to different starting REs as a preset value.

[0146] In some embodiments, the terminal determines the second capability based on a protocol predefined, the terminal does not send the second capability to the network device, and the terminal is expected to determine the time delay required to listen to the sequence of different downlink reference signals as a preset value.

[0147] For example, the protocol predefines a second terminal capability, which indicates the additional latency required for the UE to listen to a DMRS sequence. The DMRS sequence includes at least one of the DMRS initial sequence and other DMRS sequences. When the UE does not report the second terminal capability, the additional latency expected for the UE to listen to the DMRS sequence is 0.

[0148] In some embodiments, the terminal determines the second capability based on a protocol predefined, and the terminal does not send the second capability to the network device. The terminal is expected to determine the time delay required to listen to the time domain and / or frequency domain resource locations of different downlink reference signals as a preset value.

[0149] For example, the protocol predefines a second terminal capability, which is used to indicate the additional latency required for the UE to listen to different PDCCH DMRS patterns. The PDCCH DMRS pattern includes at least one of a time-domain pattern, a frequency-domain pattern, a time-frequency-domain pattern, and an air interface pattern. When the UE does not report the second terminal capability, the additional latency expected for the UE to listen to different PDCCH DMRS patterns is 0.

[0150] In some embodiments, the terminal determines the second capability based on a protocol predefined, the terminal does not send the second capability to the network device, and the terminal is expected to determine the delay required to listen to the downlink reference signal mapped to different starting REs as a preset value.

[0151] For example, the protocol predefines a second terminal capability, which is used to indicate the additional latency required for the UE to listen to PDCCH DMRS mappings at different starting REs. When the UE does not report the second terminal capability, the UE is expected to have zero additional latency required to listen to PDCCH DMRS mappings at different starting REs.

[0152] In step S2102, the network device determines the terminal's first capability and / or second capability.

[0153] In some embodiments, the network device determines at least one of the terminal's first capability and second capability based on whether it receives at least one of the first capability and second capability sent by the terminal.

[0154] In some embodiments, the terminal has at least one of a first capability and a second capability, and does not transmit at least one of the first capability and the second capability to the network device; or the network device does not expect to receive at least one of the first capability and the second capability transmitted by the terminal.

[0155] In some embodiments, if the terminal does not send the first capability to the network device, the network device determines that the terminal does not have the first capability.

[0156] In some embodiments, if the network device does not receive the first capability transmitted by the terminal, the network device is expected to perform at least one of the following: not transmitting a sequence of different downlink reference signals; not transmitting time-domain and / or frequency-domain resource locations of different downlink reference signals; not transmitting downlink reference signals mapped to different starting resource elements (REs); transmitting a sequence of first downlink reference signals, the sequence of which is predefined by the protocol; transmitting time-domain and / or frequency-domain resource locations of the first downlink reference signals, the time-domain and / or frequency-domain resource locations of which are predefined by the protocol; transmitting downlink reference signals mapped to a first starting RE, the location of which is predefined by the protocol; transmitting a number of sequences of different downlink reference signals; transmitting a number of time-domain and / or frequency-domain resource locations of different downlink reference signals; and transmitting a number of downlink reference signals mapped to different starting resource elements (REs).

[0157] In some embodiments, if the terminal does not send the second capability to the network device, the network device determines that the terminal does not have the second capability.

[0158] In some embodiments, if the network device does not receive the second capability sent by the terminal, the network device is expected to perform at least one of the following: determine the time delay required for the terminal to listen to different sequences of downlink reference signals as a preset value; determine the time domain and / or frequency domain resource locations required for the terminal to listen to different downlink reference signals as a preset value; determine the time delay required for the terminal to listen to downlink reference signals mapped to different starting REs as a preset value.

[0159] In step S2103, the network device sends a downlink reference signal to the terminal.

[0160] In some embodiments, the network device sends a downlink reference signal to the terminal based on the behavior expected to be performed in step S2102.

[0161] Step S2104: The terminal detects the downlink reference signal.

[0162] In some embodiments, the terminal detects a downlink reference signal based on at least one of a first capability and a second capability.

[0163] In some embodiments, detecting a downlink reference signal includes at least one of the following: listening to sequences of different downlink reference signals; listening to time-domain and / or frequency-domain resource locations of different downlink reference signals; listening to downlink reference signals mapped to different starting resource elements (REs); listening to the number of sequences of different downlink reference signals; listening to the number of time-domain and / or frequency-domain resource locations of different downlink reference signals; and listening to the number of downlink reference signals mapped to different starting resource elements (REs).

[0164] In some embodiments, the terminal listens to the PDCCH DMRS sent by the network device to obtain the information indicated by the PDCCH DMRS.

[0165] For example, the terminal detects PDCCH DMRS based on a first terminal capability, which ensures that the terminal obtains PDCCH blind detection prior information.

[0166] For example, the terminal detects PDCCH DMRS based on the second terminal capability, which ensures that the terminal has sufficient time to acquire PDCCH blind detection prior information.

[0167] In the above embodiments, by determining the terminal's first capability and / or second capability, and when the terminal does not send the first capability and / or second capability to the network device, determining the behavior expected to be performed by the network device, the terminal can detect downlink reference signals, obtain prior information for DCI detection, and perform DCI detection, thereby achieving the purpose of avoiding some invalid detections, reducing the number of detections, and reducing detection complexity and energy consumption.

[0168] The communication method involved in the embodiments of this disclosure may include at least one of steps S2101 to S2104. For example, step S2101 may be implemented as a standalone embodiment, step S2104 may be implemented as a standalone embodiment, and steps S2101+S2102, S2101+S2102+S2103, and S2101+S2102+S2103+S2104 may be implemented as standalone embodiments, but are not limited thereto.

[0169] 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.

[0170] Figure 2B is an interactive schematic diagram of a communication method according to an embodiment of the present disclosure. As shown in Figure 2B, the embodiments of the present disclosure relate to a communication method, which includes:

[0171] Step S2201: Determine the terminal's first capability and / or second capability based on protocol predefined parameters.

[0172] In some embodiments, the protocol predefines the capabilities of the terminal, wherein the capabilities include a first capability and / or a second capability, and the terminal and network device can determine the first capability and / or the second capability of the terminal based on the protocol predefinement.

[0173] In some embodiments, the protocol predefines that the terminal has a first capability and / or a second capability, and the terminal and the network device determine the first capability and / or the second capability of the terminal according to the protocol predefinement.

[0174] In some embodiments, the first capability may be a first terminal capability, and the second capability may be a second terminal capability. The names of the first capability and the second capability are not limited in this disclosure.

[0175] In step S2201a, the terminal determines the first capability and / or the second capability based on the protocol predefined.

[0176] In some embodiments, the terminal determines that it has a first capability based on a protocol predefined, the first capability being used to indicate whether the terminal supports detecting downlink reference signals.

[0177] In some embodiments, the terminal determines that it has a first capability, which indicates that the terminal supports the detection of downlink reference signals.

[0178] In some embodiments, if a terminal determines that it has a first capability, which indicates that the terminal does not support detecting downlink reference signals, then the terminal is expected to perform at least one of the following: not being able to listen to sequences of different downlink reference signals; not being able to listen to time-domain and / or frequency-domain resource locations of different downlink reference signals; not being able to listen to downlink reference signals mapped to different start resource elements (REs); being able to listen to sequences of first downlink reference signals, the sequences of which are predefined by the protocol; being able to listen to time-domain and / or frequency-domain resource locations of the first downlink reference signals, the time-domain and / or frequency-domain resource locations of which are predefined by the protocol; being able to listen to downlink reference signals mapped to a first start RE, the location of which is predefined by the protocol; being able to listen to a number of sequences of different downlink reference signals; being able to listen to a number of time-domain and / or frequency-domain resource locations of different downlink reference signals; and being able to listen to a number of downlink reference signals mapped to different start resource elements (REs).

[0179] In some embodiments, the terminal determines that it has a second capability based on a protocol predefined, the second capability being used to indicate the time delay required for the terminal to detect the downlink reference signal.

[0180] In some embodiments, the terminal determines that it has a second capability, the second capability indicating that the delay required for the terminal to detect downlink reference signals includes at least one of the following: the delay required to listen to sequences of different downlink reference signals; the delay required to listen to time-domain and / or frequency-domain resource locations of different downlink reference signals; the delay required to listen to downlink reference signals mapped to different starting REs.

[0181] In step S2201b, the network device determines the terminal's first capability and / or second capability based on protocol predefined definitions.

[0182] In some embodiments, the network device determines that the terminal has a first capability based on a predefined protocol. The first capability is used to indicate whether the terminal supports the detection of downlink reference signals.

[0183] In some embodiments, if a network device determines, based on a protocol predefined value, that a terminal's first capability indicates that the terminal does not support detecting downlink reference signals, then the network device is expected to perform at least one of the following: not transmitting sequences of different downlink reference signals; not transmitting time-domain and / or frequency-domain resource locations of different downlink reference signals; not transmitting downlink reference signals mapped to different starting resource elements (REs); transmitting sequences of first downlink reference signals, the sequences of which are predefined by the protocol; transmitting time-domain and / or frequency-domain resource locations of the first downlink reference signals, the time-domain and / or frequency-domain resource locations of which are predefined by the protocol; transmitting downlink reference signals mapped to a first starting RE, the location of which is predefined by the protocol; transmitting a number of sequences of different downlink reference signals; transmitting a number of time-domain and / or frequency-domain resource locations of different downlink reference signals; and transmitting a number of downlink reference signals mapped to different starting resource elements (REs).

[0184] In some embodiments, the network device determines that the terminal has a second capability based on a protocol predefined, the second capability being used to indicate the time delay required for the terminal to detect a downlink reference signal.

[0185] In some embodiments, the network device determines that the terminal has a second capability indicating at least one of the following: the time delay required for the terminal to listen to different sequences of downlink reference signals; the time delay required for the terminal to listen to different time-domain and / or frequency-domain resource locations of downlink reference signals; the time delay required for the terminal to listen to downlink reference signals mapped to different starting REs.

[0186] In step S2202, the network device sends a downlink reference signal to the terminal.

[0187] In some embodiments, the network device sends a downlink reference signal to the terminal when it determines that the terminal has a first capability reflecting that the terminal supports the detection of a downlink reference signal.

[0188] In some embodiments, when the network device determines that the terminal has a first capability reflecting that the terminal does not support the detection of downlink reference signals, it sends downlink reference signals to the terminal in accordance with the behavior expected to be performed by the network device in step S2201.

[0189] In some embodiments, the network device, after determining the delay required for the terminal to detect the downlink reference signal as reflected by the second capability, sends the downlink reference signal to the terminal according to the delay required for different types of reference signals.

[0190] Step S2203: The terminal detects the downlink reference signal.

[0191] In some embodiments, the terminal detects a downlink reference signal based on at least one of a first capability and a second capability.

[0192] In some embodiments, detecting a downlink reference signal includes at least one of the following: listening to sequences of different downlink reference signals; listening to time-domain and / or frequency-domain resource locations of different downlink reference signals; listening to downlink reference signals mapped to different starting resource elements (REs); listening to the number of sequences of different downlink reference signals; listening to the number of time-domain and / or frequency-domain resource locations of different downlink reference signals; and listening to the number of downlink reference signals mapped to different starting resource elements (REs).

[0193] In some embodiments, the terminal listens to the PDCCH DMRS sent by the network device to obtain the information indicated by the PDCCH DMRS.

[0194] For example, the terminal detects PDCCH DMRS based on a first terminal capability, which ensures that the terminal obtains PDCCH blind detection prior information.

[0195] For example, the terminal detects PDCCH DMRS based on the second terminal capability, which ensures that the terminal has sufficient time to acquire PDCCH blind detection prior information.

[0196] In the above embodiments, the terminal and network device determine the terminal's first capability and / or second capability based on protocol predefined, so that the terminal can detect downlink reference signals, obtain prior information for DCI detection, and perform DCI detection, thereby avoiding some invalid detections, reducing the number of detections, and reducing detection complexity and energy consumption.

[0197] The communication method involved in the embodiments of this disclosure may include at least one of steps S2201 to S2203. For example, step S2201 may be implemented as a standalone embodiment, step S2202 may be implemented as a standalone embodiment, and steps S2201+S2202 and S2201+S2202+S2203 may be implemented as standalone embodiments, but are not limited thereto.

[0198] 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.

[0199] Figure 3 is an interactive schematic diagram of a communication method according to an embodiment of the present disclosure. As shown in Figure 3, the embodiments of the present disclosure relate to a communication method, which includes:

[0200] Step 3101: The communication device determines at least one of the terminal's first capability and second capability.

[0201] In some embodiments, the first capability is used to indicate whether the terminal supports the detection of a downlink reference signal, and the second capability is used to indicate the time delay required for the terminal to detect the downlink reference signal.

[0202] Optionally, the alternative implementations of step 3101 can be found in the alternative implementations of steps S2101 and S2102 in Figure 2A, and step S2201 in Figure 2B, as well as other alternative implementations involved in Figures 2A and 2B, which will not be elaborated here.

[0203] 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.

[0204] The following are specific solutions proposed in the embodiments of this disclosure:

[0205] Example 1:

[0206] In a network, the UE determines the DCI sent by the gNB through blind detection. The terminal reports a first terminal capability to the base station. Alternatively, the first terminal capability is necessary, meaning the terminal does not need to report this terminal capability to the base station. Based on the terminal capability, before blindly detecting the DCI, the UE needs to determine the PDCCH blind detection prior information; in other words, the UE needs to determine the PDCCH blind detection prior information during the DCI blind detection process. The PDCCH blind detection prior information includes at least one of a first prior information and a second prior information. The terminal capability includes at least one of the following: a first terminal capability and a second terminal capability.

[0207] The methods for determining the capabilities of a first terminal include at least one of the following:

[0208] DMRS Pre-detection: The protocol predefines a first terminal capability, which is used to indicate whether the UE supports DMRS pre-detection. DMRS pre-detection includes at least one of the following: listening to different DMRS sequences, listening to different PDCCH DMRS patterns, listening to PDCCH DMRS mapped to different starting REs, the number of different DMRS sequences listened to, the number of different PDCCH DMRS patterns listened to, and the number of PDCCH DMRS mapped to different starting REs.

[0209] Furthermore, optionally, when the UE fails to report the first terminal capability, the UE is expected not to be able to pre-detect DMRS.

[0210] Method 1:

[0211] The protocol predefines a first terminal capability, which indicates whether the UE can listen to different DMRS sequences. The different DMRS sequences include at least one of the following: different DMRS initial sequences, different DMRS sequences, different DMRS initial sequence lengths, and different DMRS sequence lengths.

[0212] Furthermore, optionally, when the UE does not report the first terminal capability, the UE is expected not to be able to listen to different DMRS sequences.

[0213] Furthermore, optionally, when the UE does not report the first terminal capability, the UE is expected to only be able to listen to the first DMRS sequence. The first DMRS sequence is predefined by the protocol and includes at least one of the following: a predefined first DMRS initial sequence, a first DMRS sequence, a first length of the DMRS initial sequence, and a first length of the DMRS sequence.

[0214] Method 1a:

[0215] The protocol predefines a first terminal capability, which instructs the UE to listen to different DMRS sequences. The different DMRS sequences include at least one of the following: different DMRS initial sequences, different DMRS sequences, different DMRS initial sequence lengths, and different DMRS sequence lengths.

[0216] Furthermore, optionally, when the UE does not report the first terminal capability, the UE is expected not to be able to listen to different DMRS sequences.

[0217] Furthermore, optionally, when the UE does not report the first terminal capability, the UE is expected to only be able to listen to the first DMRS sequence. The first DMRS sequence is predefined by the protocol and includes at least one of the following: a predefined first DMRS initial sequence, a first DMRS sequence, a first length of the DMRS initial sequence, and a first length of the DMRS sequence.

[0218] Method 2:

[0219] The protocol predefines a first terminal capability, which indicates whether the UE can listen to different PDCCH DMRS patterns. The PDCCH DMRS pattern includes at least one of a time-domain pattern, a frequency-domain pattern, a time-frequency-domain pattern, and an air interface pattern.

[0220] Furthermore, optionally, when the UE does not report the first terminal capability, the UE is expected not to be able to listen to different PDCCH DMRS patterns.

[0221] Furthermore, optionally, when the UE does not report the first terminal capability, the UE is expected to only be able to listen to the first PDCCH DMRS pattern. The first PDCCH DMRS pattern is predefined by the protocol.

[0222] Method 2a:

[0223] The protocol predefines a first terminal capability, which is used to indicate that the UE can listen to different PDCCH DMRS patterns. The PDCCH DMRS pattern includes at least one of a time-domain pattern, a frequency-domain pattern, a time-frequency-domain pattern, and an air interface pattern.

[0224] Furthermore, optionally, when the UE does not report the first terminal capability, the UE is expected not to be able to listen to different PDCCH DMRS patterns.

[0225] Furthermore, optionally, when the UE does not report the first terminal capability, the UE is expected to only be able to listen to the first PDCCH DMRS pattern. The first PDCCH DMRS pattern is predefined by the protocol.

[0226] Method 3:

[0227] The protocol predefines a first terminal capability, which is used to indicate whether the UE can listen to the PDCCH DMRS mapping at different starting REs.

[0228] Furthermore, optionally, when the UE does not report the first terminal capability, the UE is expected not to be able to listen to the PDCCH DMRS mapped to different starting REs.

[0229] Furthermore, optionally, when the UE does not report the first terminal capability, the UE is expected to only be able to listen to the PDCCH DMRS starting at position n. n is predefined by the protocol, and preferably takes one of 0, 1, 2, 3, 4, or 5.

[0230] Method 3a:

[0231] The protocol predefines a first terminal capability, which is used to indicate that the UE can listen to the PDCCH DMRS mapping at different starting REs.

[0232] Furthermore, optionally, when the UE does not report the first terminal capability, the UE is expected not to be able to listen to the PDCCH DMRS mapped to different starting REs.

[0233] Furthermore, optionally, when the UE does not report the first terminal capability, the UE is expected to only be able to listen to the PDCCH DMRS starting at position n. n is predefined by the protocol, and preferably takes one of 0, 1, 2, 3, 4, or 5.

[0234] Method 4:

[0235] The protocol predefines a first terminal capability, which indicates whether the UE can listen to the number of different DMRS sequences. The different DMRS sequences include at least one of the following: different DMRS initial sequences, different DMRS sequences, different DMRS initial sequence lengths, and different DMRS sequence lengths.

[0236] Furthermore, optionally, when the UE does not report the first terminal capability, the UE is expected to be able to listen to a number of different DMRS sequences, which is n. n is predefined by the protocol, and preferably takes one of 0, 1, 2, 3, 4, or 5.

[0237] Method 5:

[0238] The protocol predefines a first terminal capability, which indicates whether the UE can listen to a number of different PDCCH DMRS patterns. The PDCCH DMRS pattern includes at least one of a time-domain pattern, a frequency-domain pattern, a time-frequency-domain pattern, and an air interface pattern.

[0239] Furthermore, optionally, when the UE does not report the first terminal capability, the UE is expected to be able to listen to the number of different PDCCH DMRS patterns, which is n. n is predefined by the protocol, and preferably takes one of 0, 1, 2, 3, 4, or 5.

[0240] Method 6:

[0241] The protocol predefines a first terminal capability, which is used to indicate whether the UE can listen to the PDCCH DMRS mapping at different starting REs.

[0242] Furthermore, optionally, when the UE does not report the first terminal capability, the UE is expected to only be able to listen to the PDCCH DMRS mapped to the number of different starting REs, which is n. n is predefined by the protocol, and preferably takes one of 0, 1, 2, 3, 4, or 5.

[0243] Example 2:

[0244] In a network, the UE determines the DCI sent by the gNB through blind detection. The UE core network reports terminal capabilities, or the terminal reports its capabilities to the base station. Based on terminal capabilities, the UE needs to determine PDCCH blind detection prior information before blind detection of the DCI, or during the DCI blind detection process. PDCCH blind detection prior information includes at least one of the following: first prior information, second prior information, and skipping information. Terminal capabilities include at least one of the following: first terminal capability and second terminal capability. Furthermore, the terminal reports its capabilities to the core network when registering with the network.

[0245] The determination of the second terminal capability includes at least one of the following methods:

[0246] Method 1:

[0247] The protocol predefines a second terminal capability, which is used to indicate the additional latency required for the UE to listen to the DMRS sequence. The DMRS sequence includes at least one of the DMRS initial sequence and DMRS sequences.

[0248] Furthermore, optionally, when the UE does not report the second terminal capability, the additional latency required for the UE to listen to the DMRS sequence is 0.

[0249] Method 2:

[0250] The protocol predefines a second terminal capability, which is used to indicate the additional latency required for the UE to listen to different PDCCH DMRS patterns. The PDCCH DMRS pattern includes at least one of a time-domain pattern, a frequency-domain pattern, a time-frequency-domain pattern, and an air interface pattern.

[0251] Furthermore, optionally, when the UE does not report the second terminal capability, the additional latency required for the UE to listen to different PDCCH DMRS patterns is 0.

[0252] Method 3:

[0253] The protocol predefines a second terminal capability, which is used to indicate the additional latency required for the UE to listen to the PDCCH DMRS mapping at different starting REs.

[0254] Furthermore, optionally, when the UE does not report the second terminal capability, the additional latency required for the UE to listen to the PDCCH DMRS mapping at different starting REs is 0.

[0255] In the above embodiments, the optional implementations of Embodiment 1 and Embodiment 2 can be found in the optional implementations of the embodiments shown in Figures 2A and 2B.

[0256] 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.

[0257] 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.

[0258] 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).

[0259] Figure 4A is a schematic diagram of the structure of a terminal according to an embodiment of this disclosure. Terminal 4100 is used to execute any of the above methods. In some embodiments, as shown in Figure 4A, terminal 4100 may include at least one of a transceiver module 4101, a processing module 4102, etc. In some embodiments, the transceiver module performs steps such as receiving and / or sending. Optionally, the transceiver module is used to perform at least one of the communication steps (e.g., steps S2103, S2202, but not limited thereto) performed by terminal 101 in any of the above methods, which will not be elaborated here. In some embodiments, the processing module is used to determine at least one of a first capability and a second capability of the terminal, the first capability indicating whether the terminal supports detecting a downlink reference signal, and the second capability indicating the delay required for the terminal to detect the downlink reference signal. Optionally, the processing module is used to perform at least one of other steps (e.g., steps S2101, S2104, S2201, S2203, S3101, but not limited thereto) performed by terminal 101 in any of the above methods, which will not be elaborated here.

[0260] Figure 4B is a schematic diagram of the structure of a network device according to an embodiment of this disclosure. The network device 4200 is used to perform any of the above methods. In some embodiments, as shown in Figure 4B, the network device 4200 may include at least one of a transceiver module 4201, a processing module 4202, etc. In some embodiments, the transceiver module is used to perform steps such as receiving and / or sending. 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 102 in any of the above methods (e.g., step S2103, step S2202, but not limited thereto), which will not be elaborated here. In some embodiments, the processing module is used to determine at least one of a first capability and a second capability of the terminal, the first capability indicating whether the terminal supports detecting a downlink reference signal, and the second capability indicating the delay required for the terminal to detect the downlink reference signal. Optionally, the processing module is used to perform at least one of other steps performed by the network device 102 in any of the above methods (e.g., step S2102, step S3101, but not limited thereto), which will not be elaborated here.

[0261] In some embodiments, the transceiver module may include a transmitting module and / or a receiving module, which may be separate or integrated. Optionally, the transceiver module may be interchangeable with a transceiver.

[0262] In some embodiments, the processing module may be a single module or may include multiple sub-modules. Optionally, the multiple sub-modules may each perform all or part of the steps required by the processing module.

[0263] In some embodiments, the processing module can be replaced by the processor, and the transceiver module can be replaced by the transceiver.

[0264] Figure 5A is a schematic diagram of the structure of the communication device 5100 proposed in an embodiment of this disclosure. The communication device 5100 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 5100 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.

[0265] As shown in Figure 5A, the communication device 5100 is used to execute any of the above methods. In some embodiments, the communication device 5100 includes one or more processors 5101. The processor 5101 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 5100 is used to execute any of the above methods. Optionally, one or more processors 5101 are used to invoke instructions to cause the communication device 5100 to execute any of the above methods.

[0266] In some embodiments, the communication device 5100 further includes one or more transceivers 5102. When the communication device 5100 includes one or more transceivers 5102, the transceiver 5102 performs at least one of the communication steps such as sending and / or receiving in the above method (e.g., steps S2103, S2202, but not limited thereto), and the processor 5101 performs at least one of other steps (e.g., steps S2101, S2102, S2104, S2201, S2203, S3101, but not limited thereto). In optional embodiments, the transceiver may include a receiver and / or a transmitter, which may be separate or integrated together. 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.

[0267] In some embodiments, the communication device 5100 further includes one or more memories 5103 for storing data and / or instructions. Optionally, one or more processors 5101 are used to invoke instructions stored in the memory 5103 to cause the communication device 5100 to perform any of the above methods. Optionally, all or part of the memory 5103 may also be located outside the communication device 5100. In an optional embodiment, the communication device 5100 may include one or more interface circuits 5104. Optionally, the interface circuit 5104 is connected to the memory 5102 and can be used to receive data and / or instructions from the memory 5102 or other devices, and can be used to send data and / or instructions to the memory 5102 or other devices. For example, the interface circuit 5104 can read data and / or instructions stored in the memory 5102 and send the data and / or instructions to the processor 5101.

[0268] The communication device 5100 described in the above embodiments may be a network device or a terminal, but the scope of the communication device 5100 described in this disclosure is not limited thereto, and the structure of the communication device 5100 may not be limited by FIG. 5A. The communication device may be a standalone device or may be 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.

[0269] Figure 5B is a schematic diagram of the structure of chip 5200 according to an embodiment of this disclosure. For cases where the communication device 5100 can be a chip or a chip system, please refer to the schematic diagram of chip 5200 shown in Figure 5B, but it is not limited thereto.

[0270] Chip 5200 includes one or more processors 5201. Chip 5200 is used to perform any of the methods described above.

[0271] In some embodiments, chip 5200 further includes one or more interface circuits 5202. Optionally, terms such as interface circuit, interface, and transceiver pin can be used interchangeably. In some embodiments, chip 5200 further includes one or more memories 5203 for storing data and / or instructions. Optionally, all or part of the memories 5203 may be located outside of chip 5200. Optionally, the interface circuit 5202 is connected to the memories 5203, and the interface circuit 5202 can be used to receive data and / or instructions from the memories 5203 or other devices, and the interface circuit 5202 can be used to send data and / or instructions to the memories 5203 or other devices. For example, the interface circuit 5202 can read data and / or instructions stored in the memories 5203 and send the data and / or instructions to the processor 5201.

[0272] In some embodiments, the interface circuit 5202 performs at least one of the communication steps such as sending and / or receiving in the above method (e.g., steps S2103, S2202, but not limited thereto). The interface circuit 5202 performing the communication steps such as sending and / or receiving in the above method refers, for example, to the interface circuit 5202 performing data and / or instruction interaction between the processor 5201, the chip 5200, the memory 5203, or the transceiver device. In some embodiments, the processor 5201 performs at least one of other steps (e.g., steps S2101, S2102, S2104, S2201, S2203, S3101, but not limited thereto).

[0273] 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.

[0274] 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.

[0275] 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.

[0276] This disclosure also proposes a computer program that, when run on a computer, causes the computer to perform any of the above methods.

Claims

1. A communication method characterized by comprising: The method is performed by a communication device, and the method includes: Determine at least one of a first capability and a second capability of the terminal, wherein the first capability is used to indicate whether the terminal supports the detection of a downlink reference signal, and the second capability is used to indicate the time delay required for the terminal to detect the downlink reference signal.

2. The method of claim 1, wherein, The detected downlink reference signal includes at least one of the following: Listen to sequences of different downlink reference signals; Monitor the time-domain and / or frequency-domain resource locations of different downlink reference signals; Listen to the downlink reference signal mapped to different starting resource elements (REs); The number of different downlink reference signal sequences being monitored; The number of time-domain and / or frequency-domain resource locations for monitoring different downlink reference signals; Listen to the number of downlink reference signals mapped to different starting resource elements (REs).

3. The method according to claim 1 or 2, characterized in that: The communication device is the terminal, wherein, in the absence of the terminal transmitting the first capability to the network device, the terminal is expected to perform at least one of the following: It is not possible to monitor sequences of different downlink reference signals; It is not possible to monitor the time-domain and / or frequency-domain resource locations of different downlink reference signals; Downlink reference signals mapped to different starting resource elements (REs) cannot be listened to; It is capable of listening to the sequence of the first downlink reference signal, the sequence of which is predefined by the protocol; It is capable of monitoring the time-domain and / or frequency-domain resource locations of the first downlink reference signal, the time-domain and / or frequency-domain resource locations of the first downlink reference signal being predefined by the protocol; It can listen to the downlink reference signal mapped to the first starting RE, the position of which is predefined by the protocol; The number of different downlink reference signal sequences that can be monitored; The number of time-domain and / or frequency-domain resource locations that can be monitored for different downlink reference signals; It can monitor the number of downlink reference signals mapped to different starting resource elements (REs).

4. The method according to any one of claims 1 to 3, characterized in that, The communication device is a network device, wherein, in the event that the network device does not receive the first capability sent by the terminal, the network device is expected to perform at least one of the following: Sequences that do not transmit different downlink reference signals; Time-domain and / or frequency-domain resource locations that do not transmit different downlink reference signals; Do not send downlink reference signals mapped to different starting resource elements (REs); A sequence of first downlink reference signals is transmitted, the sequence of which is predefined by the protocol; Transmit the time-domain and / or frequency-domain resource locations of the first downlink reference signal, wherein the time-domain and / or frequency-domain resource locations of the first downlink reference signal are predefined by the protocol; Send a downlink reference signal mapped to the first starting RE, the position of which is predefined by the protocol; The number of sequences of different downlink reference signals transmitted; The number of time-domain and / or frequency-domain resource locations for transmitting different downlink reference signals; The number of downlink reference signals sent mapped to different starting resource elements (REs).

5. The method according to any one of claims 1 to 4, characterized in that, The communication device is the terminal, wherein, in the absence of the terminal transmitting the second capability to the network device, the terminal is expected to perform at least one of the following: The time delay required to monitor different downlink reference signal sequences is set to a preset value; The time delay required to monitor the time-domain and / or frequency-domain resource locations of different downlink reference signals is set to a preset value; The required delay for monitoring the downlink reference signal mapped to different starting REs is set to a preset value.

6. The method according to any one of claims 1 to 5, characterized in that, The communication device is a network device, wherein, in the event that the network device does not receive the second capability sent by the terminal, the network device is expected to perform at least one of the following: The time delay required for the terminal to listen to different downlink reference signal sequences is determined to be a preset value; The time delay required for the terminal to listen to different downlink reference signals in the time domain and / or frequency domain is set to a preset value; The time delay required for the terminal to listen to the downlink reference signal mapped to different starting REs is determined to be a preset value.

7. The method according to any one of claims 1 to 6, characterized in that, The communication device is the terminal, and determining whether the terminal has at least one of the first capability and the second capability includes: Based on the predefined protocol, determine whether the terminal has at least one of the first capability and the second capability; The communication device is a network device, and determining whether the terminal has at least one of the first capability and the second capability includes: Based on a predefined protocol, or based on whether at least one of the first capability and the second capability is received from the terminal, it is determined whether the terminal has at least one of the first capability and the second capability.

8. The method according to any one of claims 1 to 7, characterized in that, The first capability and / or the second capability are predefined by the protocol.

9. The method according to any one of claims 1 to 8, characterized in that, The communication device is the terminal, and the method further includes: Send at least one of the first capability and the second capability to the network device; or The communication device is a network device, and the method further includes: Receive at least one of the first capability and the second capability sent by the terminal.

10. The method according to any one of claims 1 to 8, characterized in that, The communication device is the terminal, and the terminal has at least one of the first capability and the second capability. The method further includes: Not sending at least one of the first capability and the second capability to the network device; or The communication device is a network device, and the method further includes: It does not expect to receive at least one of the first capability and the second capability sent by the terminal.

11. A communication device, characterized by The communication device is used to perform the method according to any one of claims 1-10.

12. 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 1-10.

13. A program product comprising at least one of a program, instructions, characterized in that When at least one of the programs or instructions is executed by the communication device, it implements the steps of the method according to any one of claims 1-10.

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