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

Abstract

The present disclosure relates to a communication method, a communication device, a communication system, a storage medium, and a program product. The communication method comprises: a terminal receives first information, the first information being used for configuring at least one of the following: a demodulation reference signal (DMRS); and downlink transmission on a physical downlink control channel (PDCCH) or a physical downlink shared channel (PDSCH), wherein a resource corresponding to the DMRS overlaps a resource corresponding to the downlink transmission. The present disclosure can improve the throughput.

Description

Communication methods, communication equipment, communication systems, 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, communication systems, storage media, and program products. Background Technology

[0002] In traditional communication transmission, the demodulation reference signal (DMRS) is used for channel estimation. After receiving the DMRS, the terminal uses the DMRS to perform channel estimation, and then uses the estimated channel to receive data on the corresponding channel. Summary of the Invention

[0003] If DMRS occupies separate resources relative to data and other transmission resources, it will result in a reduction of resources for certain channel transmissions, thus reducing throughput.

[0004] This disclosure provides communication methods, communication devices, communication systems, storage media, and program products.

[0005] According to a first aspect of the present disclosure, a communication method is proposed, the method comprising: a terminal receiving first information, the first information being configured with at least one of the following: a demodulation reference signal DMRS; downlink transmission on a physical downlink control channel PDCCH or a physical downlink shared channel PDSCH; wherein the resources corresponding to the DMRS and the resources corresponding to the downlink transmission overlap.

[0006] According to a second aspect of the present disclosure, a communication method is proposed, the method comprising: a network device sending first information, the first information being configured with at least one of the following: a demodulation reference signal DMRS; downlink transmission on a physical downlink control channel PDCCH or a physical downlink shared channel PDSCH; wherein the resources corresponding to the DMRS and the resources corresponding to the downlink transmission overlap.

[0007] According to a third aspect of the present disclosure, a communication method is proposed, the method comprising: a network device sending first information to a terminal, the first information being configured with at least one of the following: a demodulation reference signal DMRS; downlink transmission on a physical downlink control channel PDCCH or a physical downlink shared channel PDSCH; wherein the resources corresponding to the DMRS and the resources corresponding to the downlink transmission overlap.

[0008] According to a fourth aspect of the present disclosure, a communication device is provided for performing the communication method described in any one of the first and second aspects.

[0009] According to a fifth aspect of the present disclosure, a communication system is provided, including a terminal and a network device, wherein the terminal is configured to implement the communication method described in the first aspect, and the network device is configured to implement the communication method described in the second aspect.

[0010] According to a sixth aspect of the present disclosure, a storage medium is provided that stores instructions which, when executed on a communication device, cause the communication device to perform a communication method as described in the first aspect and any one thereof, or the second aspect and any one thereof.

[0011] According to a seventh aspect of the present disclosure, a program product is provided, comprising at least one of a program and instructions, wherein the program and instructions, when executed by a communication device, implement the communication method described in any one of the first and second aspects.

[0012] This disclosure increases downlink channel resources, improves spectral efficiency, and increases throughput by configuring the resources of the DMRS to overlap with the downlink transmission resources on the PDCCH or PDSCH. Specifically, the network device sends first information to configure the DMRS so that its resources overlap with those of the downlink transmissions on the PDCCH or PDSCH. Alternatively, the network device sends first information to configure both the DMRS and the downlink transmissions on the PDCCH or PDSCH to overlap their occupied resources. Attached Figure Description

[0013] 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.

[0014] Figure 1 is a schematic diagram of a communication system architecture according to an embodiment of the present disclosure.

[0015] Figure 2a is a schematic diagram of a communication method interaction according to an embodiment of the present disclosure.

[0016] Figure 2b is a schematic diagram of the RE position occupied by DMRS of one symbol under type 1.

[0017] Figure 2c is a schematic diagram of the RE positions occupied by the DMRS of the two symbols under type 1.

[0018] Figure 2d is a schematic diagram of the RE position occupied by DMRS of one symbol under type 2.

[0019] Figure 2e is a schematic diagram of the RE positions occupied by the DMRS of the two symbols under type 2.

[0020] Figure 2f is a schematic diagram showing the overlap between resources corresponding to DMRS and resources corresponding to downlink transmission.

[0021] Figure 2g is a schematic diagram showing the overlap between resources corresponding to DMRS and resources corresponding to downlink transmission.

[0022] Figure 3 is a schematic diagram of a communication method interaction according to an embodiment of the present disclosure.

[0023] Figure 4 is a schematic diagram of a communication method interaction according to an embodiment of the present disclosure.

[0024] Figure 5a is a schematic diagram of the structure of the terminal proposed in an embodiment of this disclosure.

[0025] Figure 5b is a schematic diagram of the structure of the network device proposed in an embodiment of this disclosure.

[0026] Figure 6a is a schematic diagram of the structure of the communication device proposed in an embodiment of this disclosure.

[0027] Figure 6b is a schematic diagram of the chip structure proposed in an embodiment of this disclosure. Detailed Implementation

[0028] This disclosure provides communication methods, communication devices, communication systems, storage media, and program products.

[0029] In a first aspect, embodiments of this disclosure propose a communication method, the method comprising: a terminal receiving first information, the first information being configured with at least one of the following: a demodulation reference signal DMRS; downlink transmission on a physical downlink control channel PDCCH or a physical downlink shared channel PDSCH; wherein the resources corresponding to the DMRS and the resources corresponding to the downlink transmission overlap.

[0030] In the above embodiments, by configuring the resources of DMRS to overlap with the downlink transmission resources on PDCCH or PDSCH, the network device sends first information to configure DMRS so that the resources of DMRS overlap with the downlink transmission resources on PDCCH or PDSCH. Alternatively, the network device sends second information to configure downlink transmission on PDCCH or PDSCH so that the resources of downlink transmission on PDCCH or PDSCH overlap with the resources of DMRS. Alternatively, the network device sends both first and second information to configure DMRS and downlink transmission on PDCCH or PDSCH respectively, so that the resources they occupy overlap, thereby improving spectrum efficiency and throughput.

[0031] In some optional embodiments of the first aspect, the resources corresponding to the DMRS and the resources corresponding to the downlink transmission overlap, including: the resources corresponding to the DMRS include a portion of the resources corresponding to the downlink transmission; or, the resources corresponding to the DMRS are all of the resources corresponding to the downlink transmission; or, the resources corresponding to the downlink transmission include a portion of the resources corresponding to the DMRS.

[0032] In some alternative embodiments of the first aspect, the first information is carried by at least one of the following: Radio Resource Control (RRC) signaling; Media Access Control-Control Unit (MAC CE); Downlink Control Information (DCI) signaling.

[0033] In some alternative embodiments of the first aspect, the second information is used to configure downlink transmission on the PDCCH, and the second information is PDCCH configuration information carried by RRC signaling; and / or, the second information is used to configure downlink transmission on the PDSCH, and the second information is PDSCH configuration information carried by RRC signaling.

[0034] In some alternative embodiments of the first aspect, the method further includes: the terminal sending second information, the second information being used for at least one of the following: instructing the terminal to support resource overlap between the DMRS and the downlink transmission; instructing the terminal to support receiving the downlink transmission that overlaps with the DMRS resource based on artificial intelligence (AI).

[0035] In some alternative embodiments of the first aspect, the method further includes: the terminal sending third information, the third information being used to indicate an AI function applicable to the terminal, the AI ​​function including receiving, based on AI, at least one of the following: the DMRS overlapping with the downlink transmission resource; the downlink transmission overlapping with the DMRS resource.

[0036] In some alternative embodiments of the first aspect, the terminal sending the third information includes: the terminal sending the third information before receiving the first information; or, the terminal sending the third information after receiving the first information.

[0037] In some alternative embodiments of the first aspect, the third information is also used to determine whether there is an AI function applicable to at least one PDCCH aggregation level, or to determine whether there is an AI function applicable to at least one modulation and coding scheme.

[0038] In some alternative embodiments of the first aspect, the method further includes at least one of the following: activating the AI ​​function after receiving the first information and after a first duration; activating the AI ​​function after receiving the fourth information and after a second duration, wherein the fourth information is received after the first information is received, and the fourth information is used to schedule PDSCH; and activating the AI ​​function after sending feedback information of the first information and after a third duration.

[0039] In some alternative embodiments of the first aspect, the second information is carried by RRC signaling and / or DCI signaling; or, the fourth information is carried by DCI signaling.

[0040] In some alternative embodiments of the first aspect, the information received by the terminal for scheduling the PDSCH is fourth information, and the first information and / or the fourth information is further used to determine at least one of the following: the type of the DMRS; the time-frequency domain resources corresponding to the PDSCH and / or the DMRS; the port information of the DMRS; the power ratio of the downlink transmission to the DMRS; the number of symbols occupied by the DMRS; and the symbol positions occupied by the DMRS.

[0041] In some alternative embodiments of the first aspect, the first information for configuring the DMRS and the first information for configuring the downlink transmission are in the same information, or the first information for configuring the DMRS and the first information for configuring the downlink transmission are in the same information.

[0042] In a second aspect, a communication method is provided, the method comprising: a network device sending first information, the first information being used to configure at least one of the following: a demodulation reference signal DMRS; downlink transmission on a physical downlink control channel PDCCH or a physical downlink shared channel PDSCH; wherein the resources corresponding to the DMRS and the resources corresponding to the downlink transmission overlap.

[0043] In some optional embodiments of the second aspect, the resources corresponding to the DMRS and the resources corresponding to the downlink transmission overlap, including: the resources corresponding to the DMRS include a portion of the resources corresponding to the downlink transmission; or, the resources corresponding to the DMRS are all of the resources corresponding to the downlink transmission; or, the resources corresponding to the downlink transmission include a portion of the resources corresponding to the DMRS.

[0044] In some alternative embodiments of the second aspect, the first information is carried by at least one of the following: Radio Resource Control (RRC) signaling; Media Access Control-Control Unit (MAC CE); Downlink Control Information (DCI) signaling.

[0045] In some alternative embodiments of the second aspect, the second information is used to configure downlink transmission on the PDCCH, and the second information is PDCCH configuration information carried by RRC signaling; and / or, the second information is used to configure downlink transmission on the PDSCH, and the second information is PDSCH configuration information carried by RRC signaling.

[0046] In some alternative embodiments of the second aspect, the method further includes: the network device receiving second information, the second information being used for at least one of the following: instructing the terminal to support resource overlap between the DMRS and the downlink transmission; instructing the terminal to support receiving the downlink transmission that overlaps with the DMRS resource based on artificial intelligence (AI).

[0047] In some alternative embodiments of the second aspect, the method further includes: the network device receiving third information for indicating an AI function applicable to the terminal, the AI ​​function including receiving at least one of the following based on AI: the DMRS overlapping with the downlink transmission; the downlink transmission overlapping with the DMRS.

[0048] In some alternative embodiments of the second aspect, the third information is received before the first information is sent; or, the third information is received after the first information is sent.

[0049] In some alternative embodiments of the second aspect, the third information is also used to determine whether there is an AI function applicable to at least one PDCCH aggregation level, or to determine whether there is an AI function applicable to at least one modulation and coding scheme.

[0050] In some alternative embodiments of the second aspect, the AI ​​function is activated by the terminal after the terminal receives the first information and a first duration has elapsed; and / or, the AI ​​function is activated by the terminal after the terminal receives the fourth information and a second duration has elapsed, the fourth information being sent after the first information being sent, and the fourth information being used to schedule PDSCH; the AI ​​function is activated by the terminal after the terminal sends feedback information of the first information and a third duration has elapsed.

[0051] In some alternative embodiments of the second aspect, the second information is carried by RRC signaling and / or DCI signaling; or, the fourth information is carried by DCI signaling.

[0052] In some alternative embodiments of the second aspect, the information sent by the network device for scheduling the PDSCH is fourth information, wherein the first information and / or the fourth information are further used to determine at least one of the following: the type of the DMRS; the pattern of the DMRS; the time-frequency domain resources corresponding to the PDSCH and / or the DMRS; the port information of the DMRS; the power ratio of the downlink transmission to the DMRS; the number of symbols occupied by the DMRS; and the symbol positions occupied by the DMRS.

[0053] In some alternative embodiments of the second aspect, the first information for configuring the DMRS and the first information for configuring the downlink transmission are in the same information, or the first information for configuring the DMRS and the first information for configuring the downlink transmission are in the same information.

[0054] Thirdly, a communication method is provided, the method comprising: a network device sending first information to a terminal, the first information being used to configure at least one of the following: demodulation reference signal DMRS; downlink transmission on physical downlink control channel PDCCH or physical downlink shared channel PDSCH; wherein the resources corresponding to the DMRS and the resources corresponding to the downlink transmission overlap.

[0055] Fourthly, a communication device is provided, the communication device being used to perform the communication method described in any one of the first and second aspects.

[0056] Fifthly, a communication system is provided, including a terminal and a network device, wherein the terminal is configured to implement the communication method described in the first aspect, and the network device is configured to implement the communication method described in the second aspect.

[0057] In a sixth aspect, a storage medium is provided that stores instructions which, when executed on a communication device, cause the communication device to perform a communication method as described in the first aspect and any one thereof, or the second aspect and any one thereof.

[0058] In a seventh aspect, a program product is provided, comprising at least one of a program and instructions, wherein the program and instructions, when executed by a communication device, implement the communication method described in any one of the first and second aspects.

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

[0060] Ninthly, embodiments of this disclosure provide a chip or chip system. The chip or chip system includes processing circuitry configured to perform the method described according to an optional implementation of the first or second aspect above.

[0061] It is understood that the terminals, access network devices, network elements, core network devices, communication systems, storage media, program products, computer programs, chips, or chip systems involved in the various embodiments of this disclosure are all used to execute the methods proposed in the embodiments of this disclosure. Therefore, the beneficial effects that can be achieved can be referred to the beneficial effects in the corresponding methods, and will not be repeated here.

[0062] This disclosure provides communication methods, communication devices, communication systems, storage media, and program products. In some embodiments, the terms "communication method" and "information processing method" can be used interchangeably, as can the terms "communication device" and "information processing device" and "communication device," and the terms "information processing system" and "communication system."

[0063] 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.

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

[0065] 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.

[0066] In the embodiments disclosed herein, "multiple" refers to two or more.

[0067] 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”, etc., may be used interchangeably.

[0068] 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.

[0069] 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.

[0070] 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.

[0071] In some embodiments, “including A,” “containing A,” “for indicating A,” and “carrying A” can be interpreted as directly carrying A or indirectly indicating A.

[0072] In some embodiments, terms such as "time / frequency" and "time-frequency domain" refer to the time domain and / or frequency domain.

[0073] 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.

[0074] 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”.

[0075] 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.

[0076] In some embodiments, "network" can be interpreted as devices included in a network (e.g., access network devices, core network devices, etc.).

[0077] 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.

[0078] 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.

[0079] 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.

[0080] 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.

[0081] In some embodiments, the acquisition of data, information, etc., may comply with the laws and regulations of the country where the location is situated.

[0082] In some embodiments, data, information, etc., may be obtained with the user's consent.

[0083] 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.

[0084] Figure 1 is a schematic diagram of a communication system architecture according to an embodiment of the present disclosure.

[0085] As shown in Figure 1, the communication system 100 includes a terminal 101 and a network device 102.

[0086] In some embodiments, terminal 101 includes, for example, 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, but is not limited thereto.

[0087] In some embodiments, network device 102 may include at least one of access network device and core network device.

[0088] 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.

[0089] 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.

[0090] 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.

[0091] In some embodiments, a core network device may be a single device comprising one or more network elements, or it may be multiple devices or a group of devices, each comprising all or part of the aforementioned one or more network elements. Network elements may be virtual or physical. The core network may include, for example, at least one of an Evolved Packet Core (EPC), a 5G Core Network (5GCN), or a Next Generation Core (NGC).

[0092] 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.

[0093] The following embodiments of this disclosure can be applied to the communication system 100 shown in FIG1, or to some of the main bodies, but are not limited thereto. The main bodies shown in FIG1 are illustrative. The communication system may include all or some of the main bodies in FIG1, or may include other main bodies outside of FIG1. ​​The number and form of each main body are arbitrary. 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.

[0094] 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), 6th generation mobile communication system (6G), 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).

[0095] In traditional communication transmission, the Demodulation Reference Signal (DMRS) is used for channel estimation. For example, the DMRS is transmitted simultaneously with the Physical Broadcast Channel (PBCH), Physical Downlink Control Channel (PDCCH), Physical Downlink Shared Channel (PDSCH), Physical Uplink Control Channel (PUCCH), and Physical Uplink Shared Channel (PUSCH). Furthermore, the RE (resource element) resources occupied by the DMRS differ from those occupied by the transmission on the aforementioned channels. After receiving the DMRS, the terminal uses it for channel estimation and then uses the estimated channel to receive data on the corresponding channel.

[0096] However, if DMRS occupies separate resources relative to data and other transmission resources, it leads to a reduction in the resources corresponding to the transmission of each of the aforementioned channels, thereby reducing throughput.

[0097] Therefore, this disclosure provides a communication method in which a network device can configure the resources of DMRS to overlap with the resources of downlink transmission on PDCCH or PDSCH. Specifically, the network device sends first information to configure DMRS such that the resources of DMRS overlap with the resources of downlink transmission on PDCCH or PDSCH. Alternatively, the network device sends first information to configure downlink transmission on PDCCH or PDSCH such that the resources of downlink transmission on PDCCH or PDSCH overlap with the resources of DMRS. Or, the network device sends first information to configure DMRS and downlink transmission on PDCCH or PDSCH so that their occupied resources overlap, thereby increasing downlink channel resources, improving spectral efficiency, and increasing throughput.

[0098] Figure 2 is a schematic diagram of a communication method interaction according to an embodiment of the present disclosure. As shown in Figure 2, this embodiment of the present disclosure relates to a communication method for a communication system 100, the method including:

[0099] In step S2101, terminal 101 sends second information to network device 102.

[0100] In some embodiments, network device 102 receives second information sent by terminal 101.

[0101] In some embodiments, the names of information, etc., are not limited to the names described in the embodiments. Terms such as "information", "message", "signal", "signaling", "report", "configuration", "indication", "instruction", "command", "channel", "parameter", "domain", "field", "symbol", "symbol", "codebook", "codeword", "codepoint", "bit", "data", "program", and "chip" can be used interchangeably.

[0102] In some embodiments, terms such as “send,” “transmit,” “report,” “distribute,” “transfer,” “bidirectional transmission,” “send and / or receive” can be used interchangeably.

[0103] In some embodiments, "acquire," "get," "obtain," "receive," "transmit," "bidirectional transmission," and "send and / or receive" can be used interchangeably and can be interpreted as receiving from other entities, acquiring from protocols, acquiring from higher layers, obtaining through self-processing, or autonomous implementation. Protocols include, for example, at least one of the 3GPP protocol, Wi-Fi protocol, and audio and / or video protocols.

[0104] In some embodiments, other data, such as PDSCH, PUSCH, PUCCH, PDCCH, and PBCH, cannot be transmitted on the Resource Element (RE) of DMRS transmission. Taking Figures 2b and 2e as examples, Figures 2b and 2c are schematic diagrams of the resource occupancy of a DMRS port in type 1. The horizontal axis of the diagram represents symbols, and the vertical axis represents subcarriers. For example, in Figures 2b-2e, the horizontal axis represents the 14 symbols contained in one slot, and the vertical axis represents the 12 subcarriers contained in one RB. Each box can represent one subcarrier on one symbol, i.e., one RE. For example, type 1 corresponds to multiple DMRS ports being divided into two Code Division Multiplexing (CDM) groups, where different CDM groups contain DMRS ports occupying different REs. Figures 2d and 2e are schematic diagrams of the resource occupancy of a DMRS port in type 2. Type 2 corresponds to multiple DMRS ports being divided into three CDM groups. Furthermore, when the terminal's movement speed is high, the DMRS can also occupy at least one additional subsequent symbol. Figure 2b is a schematic diagram of the RE positions occupied by a DMRS with one symbol under Type 1. As shown in Figure 2b, in the Type 1 case, the four ports in CDM group#1, ports 0, 1, 4, and 5 occupy the REs represented by the diagonally filled boxes, and the four ports in CDM group#2, ports 2, 3, 6, and 7 occupy the REs represented by the dotted-filled boxes. Figure 2c is a schematic diagram of the RE positions occupied by a DMRS with two symbols under Type 1. In the Type 1 case, the eight ports in CDM group#1, ports 0, 1, 4, 5, 8, 9, 12, and 13 occupy the REs represented by the diagonally filled boxes, and the eight ports in CDM group#2, ports 2, 3, 6, 7, 10, 11, 14, and 15 occupy the REs represented by the dotted-filled boxes. Figure 2d is a schematic diagram of the RE positions occupied by a DMRS with one symbol under Type 2. As shown in Figure 2d, in Type 2, the four ports in CDM group#1 (ports 0, 1, 6, and 7) occupy REs represented by the diagonally filled boxes; the four ports in CDM group#2 (ports 2, 3, 8, and 9) occupy REs represented by the dotted-filled boxes; and the four ports in CDM group#3 (ports 4, 5, 10, and 11) occupy REs represented by the vertical-line filled boxes. Figure 2e is a schematic diagram showing the RE positions occupied by the DMRS of the two symbols in Type 2.In Type 2, the eight ports in CDM group #1 (ports 0, 1, 6, 7, 12, 13, 18, and 19) occupy REs represented by the diagonally filled boxes; the eight ports in CDM group #2 (ports 2, 3, 8, 9, 14, 15, 20, and 21) occupy REs represented by the dotted-filled boxes; and the eight ports in CDM group #3 (ports 4, 5, 10, 11, 16, 17, 22, and 23) occupy REs represented by the vertical-lined boxes. As shown in Figures 2b to 2e, since multiple ports within a CDM group occupy the same REs, only their orthogonal cover codes (OCCs) differ, once one port is assigned, all these REs are occupied. If other DMRS sequences within the corresponding CDM group are transmitted—that is, using different OCC codes—the DMRSs between different ports are orthogonal, and the interference effect can be ignored. However, transmitting data or signals other than those in DMRS will interfere with DMRS, leading to inaccurate channel estimation based on DMRS. This inaccurate channel estimation will cause PDSCH, PDCCH, and other receivers to receive signals based on an inaccurate channel, thus reducing their decoding accuracy. Therefore, within each CDM group, if even one DMRS port is allocated to a user, the corresponding RE for that CDM group cannot be used to transmit other data or signals. In other words, when at least one DMRS port in each CDM group is occupied, the corresponding REs for that CDM group cannot be used to transmit data or signals other than those in DMRS.

[0105] In some embodiments, to ensure the accuracy of DMRS-based channel estimation, and thus the accuracy of PDSCH, PDCCH, and other receptions, DMRS requires dedicated RE resources. However, if DMRS occupies dedicated resources relative to data and other transmission resources, it reduces the resources corresponding to each channel transmission, such as PBCH, leading to decreased throughput. Therefore, to increase the resources of each channel, improve spectral efficiency, and increase throughput while ensuring the accuracy of channel estimation and PDSCH, PDCCH, and other receptions, this disclosure can improve the reception of downlink transmissions on PDCCH or PDSCH that overlap with DMRS resources. For example, downlink transmissions on PDCCH or PDSCH that overlap with DMRS resources can be received based on Artificial Intelligence (AI), but this is not limited to this. AI can refer to an AI function, a Machine Learning (ML) function, an AI model, or an ML model, but is not limited to this. It is understood that the following embodiments of this disclosure will be described using an AI function as an example, but the AI ​​function can be replaced by at least one of AI function, AI model, ML function, and ML model.

[0106] In some embodiments, Figure 2f is a schematic diagram of the overlap between resources corresponding to DMRS and resources corresponding to downlink transmission. As shown in Figure 2f, for CDM group #1, the REs corresponding to its four ports can be used for DMRS transmission, and some of them can also be used for downlink transmission. That is, the resources corresponding to downlink transmission are a part of the resources corresponding to DMRS, and the resources corresponding to DMRS and downlink transmission overlap, and the overlap is partial. Among them, the REs represented by the slash-filled boxes, namely (c, 6) and (c, 12), are REs used only for DMRS transmission. The REs represented by the black-filled boxes, namely (c, 8) and (c, 10), are REs used for both DMRS transmission and downlink transmission. For CDM group #2, the REs corresponding to its four ports can be used for downlink transmission, and some of them can also be used for DMRS transmission. That is, the resources corresponding to MRS are a part of the resources corresponding to downlink transmission, and the resources corresponding to DMRS and downlink transmission overlap, and the overlap is partial. Among them, the REs represented by the dot-filled boxes, namely (c, 9) and (c, 11), are REs used only for downlink transmission. The REs represented by the black-filled boxes, namely (c, 5) and (c, 7), are REs used for DMRS transmission and downlink transmission. It is understood that Figure 2f uses a pattern of one symbol of type 1 as an example for illustration, but is not limited to this.

[0107] It is understandable that when CDM group #1 and CDM group #2 in Figure 2f are viewed together, it means that a portion of the resources corresponding to DMRS are used for downlink transmission, and a portion of the resources for downlink transmission are used for DMRS transmission.

[0108] In some embodiments, Figure 2g is a schematic diagram showing the overlap between resources corresponding to DMRS and resources corresponding to downlink transmission. As shown in Figure 2g, for CDM group #1, all REs corresponding to its four ports are used for DMRS transmission and downlink transmission. That is, the resources corresponding to DMRS are all the resources for downlink transmission, or it can be described as the resources for downlink transmission being all the resources corresponding to DMRS. The resources corresponding to DMRS and the resources corresponding to downlink transmission overlap completely. It is understood that Figure 2g uses a pattern of one symbol of type 1 as an example for illustration, but it is not limited to this.

[0109] In some embodiments, the terminal may send a second message to the network device to indicate at least one of the following: indicating that the terminal supports the overlap of resources corresponding to DMRS and resources corresponding to downlink transmissions; indicating that the terminal supports receiving downlink transmissions on PDCCH or PDSCH that overlap with DMRS resources based on Artificial Intelligence (AI).

[0110] In some embodiments, terms such as "physical downlink shared channel (PDSCH)" and "DL data" can be used interchangeably.

[0111] It is understood that, for ease of description, in the following embodiments, downlink transmissions on PDCCH or PDSCH will be referred to simply as downlink transmissions.

[0112] Optionally, the second information may indicate that the terminal supports resource overlap between the DMRS and downlink transmission resources. It is understood that the terminal's support for resource overlap between the DMRS and downlink transmission resources means that the terminal has the capability to receive overlapping DMRS and downlink transmission resources, and to ensure the accuracy of channel estimation based on DMRS as much as possible, thereby ensuring the accuracy of PDSCH, PDCCH, etc. reception. In this case, the network device can configure overlapping resources for the DMRS and downlink transmission to increase the resources of each channel, improve spectral efficiency, and increase throughput. For example, the network device may send first information to the terminal. The first information is used to configure at least one of the following: DMRS; downlink transmission on PDCCH or PDSCH. For example, upon receiving the second information, the network device determines that the terminal supports resource overlap between the DMRS and downlink transmission resources, and therefore sends the first information to the terminal to configure the DMRS such that the resources of the DMRS overlap with the resources of the downlink transmission on PDCCH or PDSCH. For example, upon receiving the second information, the network device determines that the terminal supports the overlap of resources corresponding to DMRS and resources corresponding to downlink transmission. Therefore, it sends the first information to the terminal to configure downlink transmission on PDCCH or PDSCH, so that the resources occupied by downlink transmission on PDCCH or PDSCH overlap with the resources of DMRS. Alternatively, upon receiving the second information, the network device determines that the terminal supports the overlap of resources corresponding to DMRS and resources corresponding to downlink transmission. Therefore, it sends the first information to the terminal to configure DMRS and downlink transmission on PDCCH or PDSCH, so that the resources occupied by the two overlap, thereby increasing the resources of each channel, improving spectral efficiency, and increasing throughput.

[0113] It is understood that, regarding the first information, reference can be made to the specific embodiments of step S2103 below, which will not be repeated here.

[0114] Optionally, the second information may instruct the terminal to support downlink transmissions on PDCCH or PDSCH that overlap with DMRS resources based on AI reception. It is understood that the terminal's support for downlink transmissions on PDCCH or PDSCH that overlap with DMRS resources based on AI reception signifies that the terminal has improved its reception methods for DMRS and downlink transmissions with overlapping resources, possessing the ability to ensure the accuracy of DMRS-based channel estimation as much as possible, thereby guaranteeing the accuracy of PDSCH, PDCCH, and other receptions. In this case, the network device can configure overlapping resources for DMRS and downlink transmissions to increase the resources of each channel, improve spectral efficiency, and increase throughput. Specific implementation methods can be as described in the above optional examples, and will not be elaborated upon here.

[0115] In some embodiments, resources may include, but are not limited to, time-domain resources, frequency-domain resources, code-domain resources, and spatial-domain resources.

[0116] In some embodiments, time-domain resources may include at least one of time slots and symbols. Frequency-domain resources may include at least one of resource blocks (RBs) and subcarriers.

[0117] In some embodiments, a resource may include REs, one RE corresponding to one subcarrier on one symbol.

[0118] In some embodiments, the overlap between the resources occupied by DMRS and the resources corresponding to downlink transmission includes the overlap of time-domain resources and frequency-domain resources. The smallest granularity of the overlap of time-domain resources and frequency-domain resources includes REs, that is, the REs occupied by DMRS are a part of the REs occupied by downlink transmission, or the REs occupied by DMRS are all the REs occupied by downlink transmission.

[0119] In some embodiments, the resources corresponding to DMRS can also be referred to as the resources occupied by DMRS, and the resources occupied by DMRS can be used to transmit DMRS. Correspondingly, the resources corresponding to PDCCH can also be referred to as the resources occupied by PDCCH, and the resources corresponding to PDSCH can also be referred to as the resources occupied by PDSCH. The resources corresponding to PDCCH can be used for downlink transmission on PDCCH, and the resources corresponding to PDSCH can be used for downlink transmission on PDSCH.

[0120] In some embodiments, downlink transmission may include signals or data. Downlink transmission on the PDCCH may refer to signals or data transmitted on the PDCCH. Optionally, downlink transmission on the PDCCH may include downlink control information (DCI) transmitted on the corresponding control resource set (CORSET) and the corresponding search space. Correspondingly, downlink transmission on the PDSCH may refer to signals or data transmitted on the PDSCH. Optionally, downlink transmission on the PDSCH may include transmission blocks (TB) or code block groups (CBG).

[0121] In some embodiments, the second information may be capability information of the terminal. For example, the second information may be capability information actively reported by the terminal to the network device, or it may be capability information passively reported to the network device in response to a query command from the network device. This disclosure does not limit the name of the second information.

[0122] In step S2102, terminal 101 sends third information to network device 102.

[0123] In some embodiments, terminal 101 receives third information sent by network device 102.

[0124] In some embodiments, the third information is used to indicate the applicable AI function of the terminal. The AI ​​function includes AI-based reception of at least one of the following: DMRS; downlink transmission. The applicable AI function can be understood as the terminal having prepared the corresponding model for that AI function. It is understood that the terminal supports downlink transmission on PDCCH or PDSCH overlapping with DMRS resources based on AI reception, which can be in two states: One is that although the terminal supports AI-based reception, it has not yet prepared the model for reception. If the AI ​​function needs to be activated to support downlink transmission on PDCCH or PDSCH overlapping with DMRS resources based on AI reception, a certain amount of time is required to prepare the corresponding AI function. Although a certain preparation time is needed, the terminal does not need to constantly prepare the AI ​​model, thus saving power consumption. The other state is that the terminal supports AI reception, and the terminal has already prepared the model for reception. The terminal can activate the AI ​​function in a shorter time to support downlink transmission on PDCCH or PDSCH overlapping with DMRS resources based on AI reception, minimizing latency and improving efficiency. The terminal can send the third information to the network device to indicate whether the terminal's model is ready.

[0125] In some embodiments, the terminal may send the third information before receiving the first information, or it may send the third information after receiving the first information.

[0126] For example, if the DMRS includes the DMRS corresponding to the PDCCH, the terminal can send the third information before receiving the first information, or it can send the third information after receiving the first information.

[0127] For example, if the DMRS includes the DMRS corresponding to the PDSCH, the terminal can send the third information after receiving the first information.

[0128] In some embodiments, if the terminal sends third information before receiving the first information, the third information can be used by the network device to determine whether to send the first information to the terminal. For example, the network device can determine that the terminal has prepared the model based on the third information, and therefore can send the first information to the terminal to configure overlapping resources for DMRS and downlink transmission. If the terminal has not prepared the model, the network device may not send the first information, but instead temporarily configure independent resources for DMRS and downlink transmission. Of course, the cases exemplified in this embodiment are merely exemplary, that is, the network device may also send the first information directly without receiving the third information, that is, without determining whether the terminal has prepared the model, and this disclosure does not limit this.

[0129] In some embodiments, if the terminal sends third information after receiving the first information, the third information can be used by the network device to determine whether to send resource-overlapping DMRS and / or downlink transmissions to the terminal. For example, the network device can determine, based on the third information, that the terminal has a ready model, and therefore can send resource-overlapping DMRS and / or downlink transmissions to the terminal. For example, the network device has already sent the first information to the terminal, configuring overlapping resources for DMRS and downlink transmissions. After receiving the third information, it determines that the terminal's model is ready, and therefore sends resource-overlapping DMRS and / or downlink transmissions. Of course, the cases illustrated in this embodiment are merely exemplary; the network device can also directly send resource-overlapping DMRS and / or downlink transmissions without receiving the third information, i.e., without determining whether the terminal has a ready model.

[0130] In some embodiments, the third information is also used to determine whether there is an AI function applicable to at least one PDCCH aggregation level, or to determine whether there is an AI function applicable to at least one modulation coding scheme (Modulation Coding Scheme / Modulation and Coding Scheme, MCS).

[0131] For example, the second information could be PDCCH configuration information (PDCCH-config), which configures multiple PDCCH aggregation levels corresponding to DCI. Different AI functions may support different aggregation levels; therefore, the third information could indicate whether an AI function supports at least one PDCCH aggregation level in the PDCCH configuration information. For example, the third information could simply indicate "yes" or "no." However, if it's "yes," it doesn't indicate which specific AI function supports which PDCCH aggregation level. If it's "no," it also doesn't indicate which PDCCH aggregation levels (not in the PDCCH configuration information) the AI ​​function supports. Another example is that the third information could indicate for each AI function whether it supports at least one PDCCH aggregation level in the PDCCH configuration information. One or more AI functions might support at least one PDCCH aggregation level in the PDCCH configuration information, while another one or more AI functions might not. Yet another example is that the third information could indicate which PDCCH aggregation levels (or PDCCH aggregation levels) the AI ​​function supports. For example, the third information can indicate, for each AI function, which PDCCH aggregation level(s) in the PDCCH configuration information are supported. For example, the third information can indicate which PDCCH aggregation levels(s) in the non-PDCCH configuration information are supported by the AI ​​function. Of course, the above are merely examples and are not intended to limit the scope of this disclosure.

[0132] For example, the second information could be PDSCH configuration information (PDSCH-config), which configures multiple MCSs. Different AI functions may support different MCSs. Alternatively, an AI function might support DMRS or downlink transmission reception with a low MCS, while a high MCS DMRS or downlink transmission might not be based on AI reception. Therefore, the third information could indicate whether an AI function supports at least one MCS in the PDSCH configuration information. For example, the third information could simply indicate "yes" or "no," but in the case of "yes," it wouldn't indicate which specific AI function supports which MCS. In the case of "no," it wouldn't indicate which MCS(s) supported by the AI ​​function that are not in the PDSCH configuration information. For another example, the third information could indicate for each AI function whether it supports at least one MCS in the PDSCH configuration information. One or more AI functions might support at least one MCS in the PDSCH configuration information, while another or some AI functions might not support the MCS(s) in the PDSCH configuration information. For yet another example, the third information could indicate which MCS(s) in the PDSCH configuration information an AI function supports. For example, the third information can indicate which MCS(s) in the PDSCH configuration information are supported for each AI function. Alternatively, the third information can indicate which MCS(s) not listed in the PDSCH configuration information are supported by the AI ​​function. Of course, these are merely examples and are not intended to limit the scope of the invention.

[0133] It is understood that "AI function" here is an abbreviation for "AI function or AI model or ML function or ML model". Low MCS refers to low-order modulation and / or low-code-rate MCS, while high MCS refers to high-order modulation and / or high-code-rate MCS. This disclosure does not limit which orders are considered high-order or what code rate is considered high-rate; different settings may correspond to different communication scenarios and systems.

[0134] In some embodiments, the third information may be "AI function reporting information", and this disclosure does not limit the name of the third information.

[0135] In step S2103, network device 102 sends first information to terminal 101.

[0136] In some embodiments, terminal 101 receives first information sent by network device 102.

[0137] In some embodiments, the first information is used to configure at least one of the following: downlink transmission on DMRSPDCCH or PDSCH. The resources corresponding to DMRS and the resources corresponding to downlink transmission overlap.

[0138] For ease of description, this disclosure will refer to the first information used to configure DMRS as first-type first information and the first information used to configure downlink transmission on PDCCH or PDSCH as second-type first information. If it is not explicitly stated whether it is first-type or second-type first information, the first information can be used to configure DMRS, or it can be used to configure downlink transmission on PDCCH or PDSCH, or it can be used to configure both DMRS and downlink transmission on PDCCH or PDSCH.

[0139] Optionally, the network device may send first information of type 1 to configure DMRS such that the resources of DMRS and the configured downlink transmissions overlap.

[0140] Optionally, the network device may send first information of type 2 to configure downlink transmission, such that the downlink transmission and the configured DMRS resources overlap.

[0141] Optionally, the network device may send first information of type 1 and first information of type 2 to configure DMRS and downlink transmission so that their resources overlap.

[0142] It is understood that the first type of first information is used to configure DMRS, including but not limited to configuring various resources of DMRS. Correspondingly, the second type of first information is used to configure downlink transmission, including but not limited to configuring various resources of downlink transmission.

[0143] In some embodiments, the first information of the first class is used to determine at least one of the following: the type of DMRS; the pattern of the DMRS; the time-frequency domain resources corresponding to the DMRS; the port information of the DMRS; the power ratio of downlink transmission to DMRS; the number of symbols occupied by the DMRS; and the symbol positions occupied by the DMRS.

[0144] Optionally, the first information of the first category may include one or more DMRS types, that is, the first information of the first category may be used to configure one or more DMRS types. When one DMRS type is included, the DMRS type overlaps with downlink transmission resources, and the terminal can determine the type of DMRS based on the first information of the first category. When multiple DMRS types are included, at least one of the multiple DMRS types overlaps with downlink transmission resources, and one of the multiple DMRS types can be indicated by the fourth information, as can be seen in the embodiment of step S2104 below.

[0145] Optionally, the first information of the first type can be used to determine the DMRS pattern. The DMRS pattern can be understood as a pattern of resources occupied by the DMRS, for example, it can be any one or more shown in Figures 2b to 2e, or the DMRS pattern can be the same as or different from the REs occupied by the downlink transmission, or different patterns can occupy different symbols and / or different subcarriers, but is not limited thereto. For example, the first information of the first type can explicitly indicate the DMRS pattern. As another example, the network device can configure the correspondence between DMRS types and patterns. Alternatively, the protocol can specify the correspondence between DMRS types and patterns. If the first information of the first type indicates the DMRS type, the terminal can indirectly determine the DMRS pattern based on the first information of the first type. As another example, the network device can pre-configure multiple patterns and activate one of the patterns using the first information of the first type as the DMRS pattern. The examples given in this embodiment are merely exemplary, and this disclosure does not limit the specific method of determining the DMRS pattern using the first information of the first type.

[0146] Optionally, the first information of the first type can indicate one or more sets of time-frequency domain resources corresponding to the DMRS. If the first information of the first type indicates one set of time-frequency domain resources, the time-frequency domain resources correspond to the transmission of the DMRS configured by the first information of the first type, that is, the time-frequency domain resources corresponding to the DMRS can be determined based on the first information of the first type. If the first information of the first type indicates multiple sets of time-frequency domain resources, one set of the multiple sets of time-frequency domain resources can be indicated by the fourth information.

[0147] Optionally, the first information of the first type can indicate one or more patterns. If the first information of the first type indicates one pattern, then that pattern can correspond to the DMRS transmission configured by the first information of the first type. That is, the DMRS pattern can be determined based on the first information of the first type. If the first information of the first type indicates multiple patterns, one of the multiple patterns can be indicated by the fourth information. For relevant embodiments of the fourth information, please refer to step S2104.

[0148] Optionally, the first type of information can be used to determine the port information of the DMRS. The port information of the DMRS can also be referred to as antenna port indication. The port information includes at least one of the following: the time-domain location corresponding to the port; the frequency-domain location corresponding to the port; the OCC code corresponding to the port; and the DMRS sequence corresponding to the port. Different DMRSs will have at least one different piece of port information. For example, the time-domain location may be different, which could be a different time slot location, a different symbol location, etc., which will not be listed in this disclosure. Another example is the frequency-domain location, which could be a different carrier location, a different subcarrier location, etc., which will not be listed in this disclosure. Yet another example is the OCC code; for instance, ports within a CDM group can occupy the same time-frequency resources, but their OCC codes are different.

[0149] Optionally, the first information of the first type can indicate one or more sets of DMRS port information. When the first information of the first type indicates one set of port information, the set of port information corresponds to the DMRS transmission configured by the first information of the first type, that is, the terminal can determine the port information corresponding to the DMRS based on the first information of the first type. When the first information of the first type indicates multiple sets of port information, at least one set of port information among the multiple sets of port information can be determined by the fourth information. For example, the fourth information is used to determine at least one port among the multiple ports indicated by the first information of the first type.

[0150] Optionally, the first information of the first type can be used to determine the power ratio of DMRS to downlink transmission. For example, the first information of the first type can indicate the power ratio, which can be considered an explicit indication of the power ratio. Another example is that the first information of the first type can indicate the number of CDM groups used for DMRS transmission, which can be used to determine the power ratio, which can be considered an implicit indication of the power ratio. The method of determining the power ratio based on the number of CDM groups can be: the protocol specifies the correspondence between the number of CDM groups used for DMRS transmission and the power ratio. For example, the network device indicates the CDM group corresponding to the terminal, and how many CDM groups are used for DMRS transmission. Assuming the CDM groups corresponding to the terminal include group#1, group#2, and group#3, if the network device indicates that group#1 is used for DMRS transmission, and only one group is occupied, and there is no DMRS on the REs corresponding to group#2 and group#3, only downlink transmission on the PDSCH. Since the total power is the same across different symbols, the protocol can specify the power ratio of downlink transmission on DMRS and PDSCH when only one group is transmitting DMRS, and the power ratio when two groups are occupied, etc., allowing the terminal to determine the power ratio based on network device instructions and protocol specifications. For example, the protocol can also specify the corresponding power ratios when different groups are transmitting DMRS. For instance, when group#1 or group#2 is transmitting DMRS, only one group is transmitting DMRS, but the corresponding power ratios can be different. The network device can also indicate which group(s) of the terminal's corresponding group the group transmitting DMRS belongs to through the first type of first information. It should be noted that the power ratio determination method given in this embodiment is only an optional solution, and the invention is not limited thereto.

[0151] Optionally, the first information of the first category can be used to determine the number of symbols occupied by the DMRS. For example, the first information of the first category can explicitly indicate the number of symbols occupied by the DMRS. Alternatively, the network device can configure the correspondence between the DMRS type or pattern and the number of occupied symbols. Or, the protocol can specify the correspondence between the DMRS type or pattern and the number of occupied symbols. If the first information of the first category indicates the DMRS type or pattern, the terminal can indirectly determine the number of symbols occupied by the DMRS based on the first information of the first category. For example, the network device can pre-configure multiple symbol quantity values ​​and activate one of the symbol quantity values ​​through the first information of the first category as the number of symbols occupied by the DMRS. The examples given in this embodiment are merely exemplary, and this disclosure does not limit the specific method of determining the number of symbols occupied by the DMRS through the first information of the first category.

[0152] Optionally, the first information of the first type can be used to determine the symbol position occupied by the DMRS. For example, the first information of the first type can explicitly indicate the symbol position occupied by the DMRS. Alternatively, the network device can configure the correspondence between DMRS types and occupied symbol positions. Or, the protocol can specify the correspondence between DMRS types and occupied symbol positions. If the first information of the first type indicates the DMRS type, the terminal can indirectly determine the symbol position occupied by the DMRS based on the first information of the first type. For example, the network device can pre-configure multiple sets of symbol positions, activate multiple sets of symbol positions through the first information of the first type, and indicate one set of symbol positions among the multiple sets of symbol positions as the symbol position occupied by the DMRS through the fourth information. The examples given in this embodiment are merely exemplary, and this disclosure does not limit the specific method of determining the symbol position occupied by the DMRS through the first information and the fourth information of the first type.

[0153] In some embodiments, the DMRS includes at least one of the following: the DMRS corresponding to the PDCCH; and the DMRS corresponding to the PDSCH. The DMRS corresponding to the PDCCH can be understood as the DMRS used to estimate the channel corresponding to the PDCCH. The DMRS corresponding to the PDSCH can be understood as the DMRS used to estimate the channel corresponding to the PDSCH.

[0154] In some embodiments, the overlap between the resources corresponding to the DMRS and the resources corresponding to the downlink transmission includes: the resources corresponding to the DMRS include a portion of the resources corresponding to the downlink transmission; or, the resources corresponding to the DMRS are all of the resources corresponding to the downlink transmission; or, the resources corresponding to the downlink transmission include a portion of the resources corresponding to the DMRS.

[0155] Optionally, the resources corresponding to downlink transmission on the PDCCH are PDCCH resources, such as time-domain resources, frequency-domain resources, etc., which will not be listed here. Similarly, the resources corresponding to downlink transmission on the PDSCH are PDSCH resources, such as time-domain resources, frequency-domain resources, etc., which can be used for downlink transmission. That is, PDCCH resources or PDSCH resources are used for downlink transmission. A portion of the PDCCH or PDSCH resources can also be used for DMRS transmission. In this case, it can be understood that the resources corresponding to DMRS and the resources corresponding to downlink transmission partially overlap. Another portion of the resources occupied by the PDCCH or PDSCH can be used only for downlink transmission, thus reserving another portion of independent resources to further ensure the accuracy of channel estimation and the accuracy of PDSCH and PDSCH reception while maximizing spectral efficiency and throughput.

[0156] Optionally, the resource can be a RE resource, but is not limited to this. For example, a portion of the PDCCH or PDSCH resource can also be used for DMRS transmission, including a portion of the RE resources occupied by the PDCCH or PDSCH that can also be used for DMRS transmission, while other REs can be used only for downlink transmission.

[0157] Optionally, all PDCCH or PDSCH resources can also be used for DMRS. This can be understood as the resources corresponding to DMRS completely overlapping with the resources corresponding to downlink transmission, thereby maximizing spectral efficiency and throughput.

[0158] Optionally, the resource can be a RE resource, but is not limited to this. For example, all of the PDCCH or PDSCH resources can also be used for DMRS transmission, including all REs in the RE resources occupied by the PDCCH or PDSCH.

[0159] In some embodiments, if the resources corresponding to the DMRS are part of the resources corresponding to the downlink transmission, i.e., the resources corresponding to the DMRS and the resources corresponding to the downlink transmission partially overlap, the first information of the first type can also indicate which resources of the downlink transmission are occupied by the DMRS. Alternatively, the first information of the first type only indicates DMRS characteristics, and the DMRS characteristics include at least one of the following: DMRS type, DMRS pattern, CDM group corresponding to the DMRS, DRMS ​​port, number of symbols occupied by the DMRS, and symbol position occupied by the DMRS. The protocol can specify which resources of the downlink transmission are occupied by the DMRS corresponding to the DMRS characteristics. For example, the terminal can determine which resources of the downlink transmission are occupied by the DMRS based on the first information of the first type and / or the protocol.

[0160] Optionally, the first information of the first type can indicate or the protocol can specify which PDSCH resources the DMRS corresponding to the PDSCH occupies.

[0161] Optionally, the first information of the first type can indicate or the protocol can specify which PDCCH resources the DMRS corresponding to the PDCCH occupies.

[0162] In some embodiments, the first information of the first type may be carried by at least one of the following: Radio Resource Control (RRC) signaling; Medium Access Control Control Element (MAC CE); Downlink Control Information (DCI) signaling.

[0163] For example, for PDSCH, the first information of the first type can be given in the DCI information of the PDSCH scheduling.

[0164] In some embodiments, the terms “downlink control information (DCI),” “downlink (DL) assignment,” “DL DCI,” “uplink (UL) grant,” and “UL DCI” can be used interchangeably.

[0165] In some embodiments, the first information of the second type may be carried by RRC signaling.

[0166] Optionally, if the first information of the second type is used to configure downlink transmission on the PDCCH, the first information of the second type is the PDCCH configuration information carried by the RRC signaling.

[0167] Optionally, if the first information of the second type is used to configure downlink transmission on PDSCH, the first information of the second type is the PDSCH configuration information carried by RRC signaling.

[0168] In some embodiments, the first information of the second type may be carried by RRC signaling and DCI signaling.

[0169] Optionally, if the first information of the second type is used to configure downlink transmission on PDSCH, the first information of the second type is the PDSCH configuration information carried by RRC signaling and the PDSCH scheduling information carried by DCI signaling, including configuring the time domain resources and frequency domain resources corresponding to PDSCH.

[0170] In some embodiments, the first information of the second type may be carried by DCI signaling.

[0171] In some embodiments, if the first information of the second type is PDCCH configuration information, the first information of the second type includes at least one of the following: configuration information related to the control resource set; configuration information related to the search space.

[0172] For example, configuration information related to the control resource set may include the frequency domain resources occupied by the PDCCH and the number of time domain units occupied by the PDCCH. The frequency domain resources occupied by the PDCCH refer to the frequency domain resources occupied by downlink transmissions on the PDCCH, and the number of time domain units occupied by the PDCCH refers to the number of time domain units occupied by downlink transmissions on the PDCCH. Time domain units may include, but are not limited to, time slots, sub-slots, and symbols. For example, the first information in the second category may include the number of symbols occupied by the PDCCH.

[0173] For example, search space-related configuration information may include time-domain information corresponding to the PDCCH. This time-domain information refers to the time-domain information corresponding to the downlink transmission on the PDCCH. This time-domain information may include, for example, slot offset values, time-domain cell positions, and aggregation levels. Time-domain cells may include, but are not limited to, slots, sub-slots, and symbols. For example, the first piece of information in the second category may include the symbol positions occupied by the PDCCH.

[0174] In some embodiments, the terms "search space", "search space set", "search space configuration", "search space set configuration", "control resource set (CORESET)", and "CORESET configuration" can be used interchangeably.

[0175] In some embodiments, the resource usage patterns of the DMRS corresponding to the PDCCH and the DMRS corresponding to the PDSCH are different. For example, the resource usage pattern of the DMRS corresponding to the PDCCH is a first pattern, and the resource usage pattern of the DMRS corresponding to the PDSCH is a second pattern. The first and second patterns can refer to the patterns shown in Figures 2b to 2e, but are not limited thereto.

[0176] Optionally, the first pattern and / or the second pattern may be indicated by first information of the first type, and the terminal may determine the first pattern and / or the second pattern based on the first information of the first type.

[0177] Optionally, the first pattern and / or the second pattern may be specified by a protocol, and the terminal may determine the first pattern and / or the second pattern based on the provisions of the protocol.

[0178] In some embodiments, the first information of the first type and the first information of the second type can be in the same information or in different information. For example, the first information of the first type and the first information of the second type can be contained in the same information and sent simultaneously, or they can be contained in different information and sent at different times.

[0179] In some embodiments, if the first information of the first type and the first information of the second type are contained in different information, the same signaling bearer may be used, or different signaling bearers may be used.

[0180] In some embodiments, the names of the first information of the first type and the first information of the second type are not limited; for example, they can be "configuration information". The first information of the first type can be called DMRS configuration information, and the first information of the second type can be called downlink transmission configuration information. This disclosure is not limited thereto.

[0181] Step S2104: Terminal 101 activates the AI ​​function.

[0182] In some embodiments, the terminal can activate the AI ​​function based on first information of the first type and / or first information of the second type. For example, the AI ​​function can be activated after receiving the first information of the first type and / or the first information of the second type and after a first duration. The first duration can be a time slot, a symbol, a millisecond, etc. This disclosure does not limit the size of the first duration; that is, the first duration can be the number of time slots, symbols, milliseconds, etc., and this disclosure does not limit it. The first duration can also be zero, that is, the AI ​​function is activated immediately after receiving the first information of the first type and / or the first information of the second type.

[0183] In some embodiments, the terminal may activate the AI ​​function after sending feedback information of the first type of first information and after a third duration. For example, the AI ​​function may be activated immediately after sending feedback information of the first type of first information, i.e., the third duration can be zero. Alternatively, the AI ​​function may be activated after sending feedback information of the first type of first information and after a third duration, in which case the third duration may not be zero. The third duration may be a time slot, a symbol, a millisecond, etc. This disclosure does not limit the size of the third duration; that is, the third duration may be the number of time slots, symbols, milliseconds, etc. The sizes of the first duration, the second duration, and the third duration may be the same or different, and this disclosure does not limit this. The feedback information of the first type of first information and / or the feedback information of the second type of first information may be carried by an RRC Reconfiguration Complete message or by other messages, and this disclosure does not limit this.

[0184] In some embodiments, the terminal can activate the AI ​​function based on fourth information. For example, the AI ​​function can be activated after receiving the fourth information and a second duration has elapsed. The fourth information is used to schedule the PDSCH. For example, for downlink transmissions on the PDSCH and / or the corresponding DMRS, the AI ​​function can be activated after receiving the fourth information and a second duration has elapsed. The fourth information is received after receiving the first information of the first type and / or the first information of the second type. The second duration can be a time slot, a symbol, milliseconds, etc. This disclosure does not limit the size of the second duration; that is, the second duration can be the number of time slots, symbols, milliseconds, etc., and the second duration can also be zero, meaning the AI ​​function is activated immediately after receiving the fourth information. The first duration and the second duration can be the same or different.

[0185] Optionally, DMRS includes DMRS corresponding to PDCCH, which activates the AI ​​function after receiving the first information of the first type and / or the first information of the second type and after a first duration.

[0186] Optionally, DMRS includes DMRS corresponding to PDSCH, which activates the AI ​​function after receiving the fourth information and after a second duration.

[0187] In some embodiments, the first information of the first type is carried by at least one of the signaling methods RRC, MAC CE, and / or DCI. See step S2103 for details.

[0188] In some embodiments, the second information is carried by RRC signaling or RRC and DCI signaling. For example, if the terminal activates the AI ​​function after receiving the first information of the first type and / or the first information of the second type and after a first duration, the second information is carried by RRC signaling or RRC and DCI signaling. See step S2103 for details.

[0189] In some embodiments, terms such as “moment,” “point in time,” “time,” and “time location” can be used interchangeably, as can terms such as “duration,” “segment,” “time window,” “window,” and “time.”

[0190] In some embodiments, the fourth information is carried by DCI signaling. For example, if the terminal activates the AI ​​function after receiving the fourth information and after a second duration, the fourth information is carried by DCI signaling.

[0191] In some embodiments, if the first information of the first type is carried by the DCI and the fourth information is carried by the DCI, the first information and the fourth information of the first type can be the same information. For example, the DCI can simultaneously indicate PDSCH and DMRS, indicating PDSCH as the function corresponding to the fourth information and indicating DMRS as the function corresponding to the first information of the first type.

[0192] In some embodiments, if both the second and fourth information are carried by the DCI, the second and fourth information can be the same information. For example, if the second information is used to configure downlink transmission on the PDSCH, the second information can be PDSCH scheduling information carried by the DCI. The PDSCH scheduling information is used to schedule the PDSCH, which corresponds to the function of the fourth information, and can also be used to configure downlink transmission on the PDSCH, which corresponds to the function of the second information.

[0193] In some embodiments, the fourth information is used to determine at least one of the following: the type of DMRS; the pattern of DMRS; the time-frequency domain resources corresponding to PDSCH and / or DMRS; the port information of DMRS; the power ratio of downlink transmission to DMRS; the number of symbols occupied by DMRS; and the symbol positions occupied by DMRS.

[0194] Optionally, the fourth information can be used to determine the type of DMRS. For example, the first information of the first category is carried by RRC signaling, and the first information of the first category can contain one or more DMRS types, that is, the first information of the first category can be used to configure one or more DMRS types. The fourth information can be used to determine the DMRS type configured by the first information of the first category. When one DMRS type is included, that DMRS type overlaps with downlink transmission resources. When multiple DMRS types are included, at least one of the multiple DMRS types overlaps with downlink transmission resources, and the fourth information can indicate one of the multiple DMRS types. For example, if the fourth information indicates one of the multiple types, then the DMRS of that type is a DMRS that overlaps with downlink transmission resources. The type of DMRS may, for example, include two types: DMRS corresponding to PDCCH and DMRS corresponding to PDSCH. For example, it may include multiple types such as periodic, non-periodic, and semi-permanent. For example, it may include multiple types transmitted at different tiers. The examples of DMRS types in this disclosure are merely exemplary and are not limited thereto.

[0195] Optionally, the fourth information can be used to determine the DMRS pattern. For example, the first information of the first type can indicate one or more DMRS patterns. If the first information of the first type indicates a pattern, then that pattern can correspond to the DMRS transmission configured by the first information of the first type; that is, the DMRS pattern can be determined based on the first information of the first type. If the first information of the first type indicates multiple patterns, one of the multiple patterns can be indicated by the fourth information.

[0196] Optionally, the fourth information can be used to determine the time-frequency domain resources corresponding to the PDSCH and / or DMRS. For example, the fourth information is used to schedule the PDSCH, i.e., to indicate the time-frequency domain resources corresponding to the PDSCH. As another example, the first information of the first type can indicate one or more sets of time-frequency domain resources corresponding to the DMRS. If the first information of the first type indicates one set of time-frequency domain resources, and this set of time-frequency domain resources corresponds to the transmission of the DMRS configured by the first information of the first type, then the time-frequency domain resources corresponding to the DMRS can be determined based on the first information of the first type. If the first information of the first type indicates multiple sets of time-frequency domain resources, one set of these multiple sets of time-frequency domain resources can be indicated by the fourth information.

[0197] Optionally, the fourth piece of information can be used to determine the port information of the DMRS. The port information of the DMRS can also be referred to as antenna port indication. The port information includes at least one of the following: the time-domain location corresponding to the port; the frequency-domain location corresponding to the port; the OCC code corresponding to the port; and the DMRS sequence corresponding to the port. Different DMRSs will have at least one different piece of port information. For example, the time-domain location may be different, which could be a different time slot location, a different symbol location, etc., and this disclosure will not list all of them. Another example is the frequency-domain location, which could be a different carrier location, a different subcarrier location, etc., and this disclosure will not list all of them. Yet another example is the OCC code; for instance, ports within a CDM group can occupy the same time-frequency resources, but their OCC codes are different.

[0198] Optionally, the first information of the first type can indicate multiple DMRS port information, and the fourth information is used to determine at least one of the multiple ports indicated by the first information of the first type.

[0199] Optionally, the fourth information can be used to determine the power ratio between DMRS and downlink transmission. For example, the fourth information can indicate the power ratio, which can be considered an explicit indication of the power ratio. Another example is that the fourth information can indicate the number of CDM groups used to transmit DMRS, and this number can be used to determine the power ratio, which can be considered an implicit indication of the power ratio. The method of determining the power ratio based on the number of CDM groups can be: the protocol specifies the correspondence between the number of CDM groups used to transmit DMRS and the power ratio. For example, the network device indicates the CDM group corresponding to the terminal, and how many CDM groups are used to transmit DMRS. Assuming the CDM groups corresponding to the terminal include group#1, group#2, and group#3, if the network device indicates that group#1 is used to transmit DMRS, and only one group is occupied, and there is no DMRS on the REs corresponding to group#2 and group#3, only downlink transmission on the PDSCH. Since the total power is the same across different symbols, the protocol can specify the power ratio of downlink transmission on DMRS and PDSCH when only one group is transmitting DMRS, and the power ratio when two groups are occupied, etc., allowing the terminal to determine the power ratio based on network device instructions and protocol specifications. For example, the protocol can also specify the corresponding power ratios when different groups are transmitting DMRS. For instance, if group#1 or group#2 is transmitting DMRS, both indicate only one group is transmitting DMRS, but the corresponding power ratios can be different. The network device can also use the fourth information to indicate which group(s) of the terminal's corresponding group the group is transmitting DMRS into. It should be noted that the power ratio determination method given in this embodiment is only an optional solution, and the invention is not limited thereto.

[0200] Optionally, the fourth information can be used to determine the number of symbols occupied by the DMRS. For example, the fourth information can explicitly indicate the number of symbols occupied by the DMRS. Alternatively, the network device can configure the correspondence between DMRS information and the number of occupied symbols. Or, the protocol can specify the correspondence between DMRS type and the number of occupied symbols. If the fourth information indicates the DMRS type, the terminal can indirectly determine the number of symbols occupied by the DMRS based on the fourth information. For example, the network device can pre-configure multiple symbol quantity values ​​and activate one of the symbol quantity values ​​through the fourth information as the number of symbols occupied by the DMRS. The DMRS information includes at least one of DMRS type, pattern, or port. The examples given in this embodiment are merely exemplary, and this disclosure does not limit the specific method of determining the number of symbols occupied by the DMRS through the fourth information.

[0201] Optionally, the fourth information can be used to determine the symbol location occupied by the DMRS. For example, the fourth information can explicitly indicate the symbol location occupied by the DMRS. Alternatively, the network device can configure the correspondence between DMRS information and occupied symbol locations. Or, the protocol can specify the correspondence between DMRS type and occupied symbol locations. If the fourth information indicates the DMRS type, the terminal can indirectly determine the symbol location occupied by the DMRS based on the fourth information. For example, the network device can pre-configure multiple sets of symbol locations and activate one set of symbol locations using the fourth information as the symbol location occupied by the DMRS. The DMRS information includes at least one of DMRS type, pattern, or port. The examples given in this embodiment are merely exemplary, and this disclosure does not limit the specific method of determining the symbol location occupied by the DMRS using the fourth information.

[0202] In some embodiments, if a fourth message is received, and the fourth message indicates one of a plurality of DMRS types, it can be assumed that at least one of the DMRS types overlaps with the downlink transmission resources, and the AI ​​function can be activated. Conversely, if the fourth message is not received, the AI ​​function can be either not activated or deactivated. This embodiment is merely an optional solution and is not limited thereto. For example, in some cases, receiving the first message of the first type can activate the AI ​​function even if the fourth message is not received. Alternatively, the AI ​​function can be deactivated even if the fourth message is not received; this disclosure does not impose any limitations.

[0203] In some embodiments, if a fourth message is received, and the fourth message indicates one of a plurality of DMRS patterns, it can be assumed that at least one of the patterns overlaps with downlink transmission resources, and the AI ​​function can be activated. Conversely, if the fourth message is not received, the AI ​​function can be either not activated or deactivated. This embodiment is merely an optional solution and is not limited thereto. For example, in some cases, receiving the first message of the first type can activate the AI ​​function even if the fourth message is not received. Alternatively, the AI ​​function can be deactivated even if the fourth message is not received; this disclosure does not impose any limitations.

[0204] In some embodiments, the power ratio of DMRS to downlink transmission is the same for different time domain units; or, the power ratio of DMRS to downlink transmission is different for different time domain units; or, the power ratio of DMRS to downlink transmission is different for different frequency domain units on the same time domain unit.

[0205] Optionally, the power ratio of downlink transmission on PDSCH to DMRS can be the same in any sign. For example, the downlink transmission on PDSCH and DMRS occupy exactly the same time-frequency domain resources.

[0206] Optionally, the power ratio of downlink transmission to DMRS on PDSCH may vary on different symbols. For example, DMRS may only occupy a portion of the symbols used by downlink transmission on PDSCH.

[0207] Optionally, the power ratio of downlink transmission to DMRS on PDSCH may differ across different REs. For example, DMRS may only occupy a portion of the REs used for downlink transmission on PDSCH, such as a specific subcarrier position on a specific symbol. The specific subcarrier of a specific symbol may be configured by the network device, specified in the protocol, or predefined; this disclosure does not impose any limitations.

[0208] In some embodiments, which symbols and / or subcarriers are occupied by DMRS can be determined based on DMRS information. That is, once the terminal determines the DMRS information, it can determine the symbols and / or subcarriers occupied by the DMRS type. The determination of which symbols and / or subcarriers are occupied by the DMRS corresponding to the DMRS type can be based on protocol conventions or network configuration. Where DMRS occupies an RE, the power ratio of downlink transmission on the PDSCH to that of DMRS can be determined based on fourth information. This DMRS information includes at least one of DMRS type, pattern, or port.

[0209] In some embodiments, the terminal activates the AI ​​function, which can receive overlapping DMRS and / or downlink transmissions based on the AI ​​function, thereby improving spectrum efficiency and throughput while ensuring the accuracy of channel estimation and the accuracy of PDSCH, PDCCH, etc. reception.

[0210] The communication method involved in the embodiments of this disclosure may include at least one of steps S2101 to S2104. For example, step S2103 may be implemented as a standalone embodiment, but is not limited thereto. For example, steps S2101 and S2103 may be standalone embodiments, steps S2102 and S2103 may be standalone embodiments, steps S2101, S2102 and S2103 may be standalone embodiments, and steps S2103 and S2104 may be standalone embodiments.

[0211] In some embodiments, step S2101 is optional and can be omitted or replaced in different embodiments. For example, the network device may send the first type of first information to the terminal after receiving the second information, in which case step S2101 is executed. However, the network device may also assume that the terminal supports the overlap of resources corresponding to DMRS and resources corresponding to downlink transmission, or that the terminal supports downlink transmission on PDCCH or PDSCH that overlaps with DMRS resources based on AI reception, in which case the network device can directly send the first type of first information to the terminal, thereby omitting step S2101. In this case, if the terminal does not support it, resulting in low accuracy of channel estimation, low accuracy of PDSCH and PDCCH reception, the network device will adjust its strategy and configure DMRS and downlink transmission with independent resources. For another example, the network device may send the first type of first information to the terminal after receiving the third information, that is, it can execute step S2102 and omit step S2101. It is understood that the examples of omitting step S2101 in this disclosure are merely exemplary, and in practical applications, step S2101 can be flexibly omitted in different scenarios.

[0212] In some embodiments, step S2102 is optional and can be omitted or replaced in different embodiments. For example, the network device may send resource-overlapping DMRS and / or downlink transmissions to the terminal after receiving the third information, in which case step S2102 is executed. However, the network device may also assume that the terminal's AI function is ready, in which case the network device can directly send resource-overlapping DMRS and / or downlink transmissions to the terminal, thereby omitting step S2101. In this case, if the terminal's AI function is not ready, the strategy can be adjusted. It is understood that the examples of omitting step S2102 in this disclosure are merely exemplary, and in practical applications, step S2102 can be flexibly omitted in different scenarios.

[0213] In some embodiments, step S2104 is optional and can be omitted or replaced in different embodiments. For example, if the AI ​​function is already activated, then the terminal does not need to reactivate it, thus omitting step S2104. It is understood that the examples of omitting step S2104 in this disclosure are merely illustrative, and in practical applications, step S2104 can be flexibly omitted in different scenarios.

[0214] In some embodiments, if an arrow in the interaction diagram representing the sending of information, signaling, etc. from one subject to another passes through other subjects, it can be interpreted as the information being forwarded from one subject to another via other subjects, or it can be interpreted as the information being sent from one subject to another without passing through other subjects.

[0215] 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.

[0216] Figure 3 is a schematic diagram illustrating a communication method according to an embodiment of the present disclosure. As shown in Figure 3, this embodiment of the present disclosure relates to a communication method, which includes:

[0217] In step S3101, network device 102 sends first information to terminal 101.

[0218] Optionally, the first information is used to configure the demodulation reference signal DMRS.

[0219] Optionally, the second information is used to configure downlink transmission on the Physical Downlink Control Channel (PDCCH) or the Physical Downlink Shared Channel (PDSCH).

[0220] Optionally, the resources corresponding to DMRS overlap with the resources corresponding to downlink transmission.

[0221] Optionally, the overlap between the resources corresponding to the DMRS and the resources corresponding to the downlink transmission includes: the resources corresponding to the DMRS include a portion of the resources corresponding to the downlink transmission; or, the resources corresponding to the DMRS are all of the resources corresponding to the downlink transmission; or, the resources corresponding to the downlink transmission include a portion of the resources corresponding to the DMRS.

[0222] Optionally, the first information is carried by at least one of the following: RRC signaling; MAC CE; DCI signaling.

[0223] Optionally, the DMRS includes the DMRS corresponding to the PDCCH, and the second information is the PDCCH configuration information carried by the RRC signaling.

[0224] Optionally, the DMRS includes the DMRS corresponding to the PDSCH, and the second information is the PDSCH configuration information carried by the RRC signaling.

[0225] Optionally, the terminal sends a second message, which is used for at least one of the following: instructing the terminal to support the overlap between the resources corresponding to DMRS and the resources corresponding to downlink transmission; instructing the terminal to support receiving downlink transmissions that overlap with DMRS resources based on artificial intelligence (AI).

[0226] Optionally, the terminal sends third information to indicate the applicable AI function of the terminal, the AI ​​function including receiving at least one of the following based on AI: DMRS; downlink transmission.

[0227] Optionally, the terminal sends a third message before receiving the first message.

[0228] Optionally, after receiving the first information, the terminal sends the third information.

[0229] Optionally, the third information is also used to determine whether there is an AI function applicable to at least one PDCCH aggregation level, or to determine whether there is an AI function applicable to at least one modulation and coding scheme.

[0230] Optionally, the AI ​​function is activated after the first message is received and a first time period has elapsed.

[0231] Optionally, after receiving the fourth message and after a second duration, the AI ​​function is activated. The fourth message is received after the first message is received, and the fourth message is used to schedule the PDSCH.

[0232] Optionally, the AI ​​function is activated after the feedback information of the first message is sent and a third time interval has elapsed.

[0233] Optionally, the second information is carried by RRC and / or DCI signaling.

[0234] Optionally, the fourth information is carried by DCI signaling.

[0235] Optionally, the fourth information is used to determine at least one of the following: the type of DMRS; the pattern of DMRS; the time-frequency domain resources corresponding to PDSCH; the port information of DMRS; the power ratio of downlink transmission to DMRS; the number of symbols occupied by DMRS; and the symbol positions occupied by DMRS.

[0236] Optionally, the first information for configuring DMRS and the first information for configuring downlink transmission are in the same information, or the first information for configuring DMRS and the first information for configuring downlink transmission are in the same information.

[0237] Figure 4 is a schematic diagram illustrating a communication method according to an embodiment of the present disclosure. As shown in Figure 4, this embodiment of the present disclosure relates to a communication method, which includes:

[0238] In step S4101, network device 102 sends first information of the first type and / or first information of the second type to terminal 101.

[0239] In some embodiments, the terminal receives first information of a first type and / or first information of a second type.

[0240] In some embodiments, the first information of the first type includes downlink transmission configuration information, and the first information of the second type includes DMRS configuration information, wherein the downlink transmission includes transmission on PDCCH or PDSCH, and the downlink transmission overlaps with the time-frequency resources corresponding to DMRS.

[0241] In some embodiments, overlap includes partial overlap or complete overlap. Partial overlap means that DMRS is transmitted on a portion of the time-frequency resources occupied by the PDCCH or PDSCH. Complete overlap means that DMRS is transmitted on all time-frequency resources occupied by the PDCCH or PDSCH.

[0242] In some embodiments, the DMRS is the DMRS corresponding to the downlink transmission. For example, the DMRS corresponding to PDSCH and the DMRS corresponding to PDCCH have different patterns. For instance, the protocol specifies or the first information of the second type indicates which time-frequency resources of PDSCH are occupied by the DMRS of PDSCH, and which time-frequency resources of PDCCH are occupied by the DMRS of PDCCH.

[0243] In some embodiments, the first information of the first type and the first information of the second type are in the same information or in different information.

[0244] In some embodiments, for PDCCH, the first information of the first type can be the PDCCH-config configured by RRC, including CORESET configuration information: the frequency domain resources and the number of symbols occupied by the PDCCH, and Searchspace configuration information: the time domain information of the PDCCH, such as the slot offset value, symbol position, aggregation level, etc.; for PDSCH, the first information of the first type can be the PDSCH-config configured by RRC.

[0245] In some embodiments, the first information of the second type may be RRC signaling, MAC CE, or DCI signaling. For example, for PDSCH, the first information of the second type may be given in the DCI that schedules the PDSCH.

[0246] Step S4102: Terminal 101 reports capability information.

[0247] In some embodiments, capability information is used to indicate that the terminal supports time-frequency resource overlap for downlink transmissions and DMRS, or capability information is used to indicate that the terminal supports the reception of AI-based downlink transmissions that overlap with DMRS time-frequency resources.

[0248] In step S4103, terminal 101 reports the applicable AI functions.

[0249] In some embodiments, for PDSCH, the report may be submitted after receiving the first information of the first type and / or the first information of the second type.

[0250] In some embodiments, different AI functions may support different MCSs. For the MCSs configured in PDSCH-config, it is possible to report which MCSs are supported.

[0251] In some embodiments, for PDCCH, the report may be submitted after or before receiving the first information of the first type and / or the first information of the second type.

[0252] In some embodiments, different AI functions may support different aggregation levels. For the aggregation levels configured in PDCCH-config, it is possible to report which aggregation levels are supported.

[0253] In step S4104, based on at least one of the first information of the first type, the first information of the second type, and the fourth information, the terminal 101 determines that the AI ​​function is activated.

[0254] In some embodiments, for PDCCH, the AI ​​function is activated after the terminal receives the first information of the first type and / or the first information of the second type.

[0255] In some embodiments, the AI ​​function can be activated immediately after receiving the first information of the first type and / or the first information of the second type. The first time can be a number of symbols, a number of slots, or a number of milliseconds (ms).

[0256] In some embodiments, the terminal activates the AI ​​function, including receiving fourth information, which is used to schedule the PDSCH.

[0257] In some embodiments, the fourth information is DCI.

[0258] In some embodiments, if the first information of the second type is also DCI, then the first information and the fourth information of the second type can be the same information.

[0259] In some embodiments, if the first information of the second type is an RRC, the RRC may contain one or more DMRS types. When multiple types are included, at least one type overlaps with downlink transmission time-frequency resources. Furthermore, the fourth information may dynamically indicate one of the multiple DMRS types.

[0260] In some embodiments, multiple DMRS types may include at least one type that does not overlap with downlink transmission time-frequency resources. When the DCI indicates that the DMRS overlaps with the PDSCH time-domain resources, the AI ​​function is activated; otherwise, the terminal is not required to activate the AI ​​function, or the terminal may not activate or deactivate the AI ​​function.

[0261] In some embodiments, activating the AI ​​function on the terminal may include receiving fourth information, which is used to schedule the PDSCH, and the fourth information may also include an antenna port indication.

[0262] In some embodiments, different DMRS ports correspond to at least one of the following: time-domain location, frequency-domain location, OCC code, and DMRS sequence.

[0263] Alternatively, the time domain location may differ: for example, the location of different symbols.

[0264] Alternatively, the frequency domain location can be different: for example, different subcarriers.

[0265] Alternatively, the OCC codes can be different. For example, as with the traditional method, members of a CDM group can occupy the same time and frequency resources, but the OCC codes can be different.

[0266] In some embodiments, the terminal determines the power ratio of PDSCH to DMRS based on fourth information.

[0267] In some embodiments, the power ratio of PDSCH to DMRS can be the same on any sign, for example, when PDSCH and DMRS occupy exactly the same time-frequency domain resources. Of course, in this case, the power ratio can also be different on different signs.

[0268] In some embodiments, the power ratio of PDSCH to DMRS is different on different symbols. For example, DMRS may only occupy a portion of the symbols occupied by PDSCH.

[0269] In some embodiments, the power ratio of PDSCH to DMRS is different on different REs. For example, DMRS only occupies a portion of the REs occupied by PDSCH, that is, as in the traditional case, it occupies a specified subcarrier position of a specified symbol.

[0270] In some embodiments, the symbols and subcarriers occupied by the DMRS are determined based on the DMRS type, and the symbols and subcarriers occupied by the DMRS corresponding to the DMRS type are based on protocol conventions or network configuration. Where the DMRS occupies an RE, the power ratio of PDSCH and DMRS can be determined based on network device indication information. This indication information can be explicit, directly indicating the ratio (for example, if the DMRS occupies all the subcarriers occupied by the PDSCH on a certain symbol, then the power ratio of PDSCH and DMRS on each subcarrier is the same, and this can be directly indicated); or the indication information can be implicit, indicating that several CDM groups of the DMRS have transmitted the DMRS. When DMRS from different CDM groups occupies different subcarrier positions on the same symbol, it means that on a certain symbol, some REs have DMRS, and some REs do not. Therefore, the terminal can calculate the power ratio of DMRS to PDSCH based on this indication.

[0271] In some embodiments, PDSCH may refer to downlink transmissions on PDSCH.

[0272] In some embodiments, the indication information may be fourth information or other information.

[0273] The communication method involved in the embodiments of this disclosure may include at least one of steps S4101 to S4104. For example, step S4101 may be implemented as a standalone embodiment, but is not limited thereto.

[0274] In some embodiments, steps S4102 to S4104 are optional, and one or more of these steps may be omitted or substituted in different embodiments.

[0275] 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.

[0276] In some embodiments, if an arrow in the interaction diagram representing the sending of information, signaling, etc. from one subject to another passes through other subjects, it can be interpreted as the information being forwarded from one subject to another via other subjects, or it can be interpreted as the information being sent from one subject to another without passing through other subjects.

[0277] 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.

[0278] 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.

[0279] 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.

[0280] 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).

[0281] Figure 5a is a schematic diagram of the structure of a terminal proposed in an embodiment of this disclosure. The terminal 5100 is used to execute any of the above methods.

[0282] In some embodiments, as shown in FIG5a, terminal 5100 may include at least one of transceiver module 5101, processing module 5102, etc.

[0283] In some embodiments, the transceiver module 5101 is used to receive first information, which is used to configure the demodulation reference signal DMRS, and second information is used to configure downlink transmission on the physical downlink control channel PDCCH or the physical downlink shared channel PDSCH, wherein the resources corresponding to DMRS and the resources corresponding to downlink transmission overlap.

[0284] In some embodiments, the overlap between the resources corresponding to the DMRS and the resources corresponding to the downlink transmission includes: the resources corresponding to the DMRS include a portion of the resources corresponding to the downlink transmission; or, the resources corresponding to the DMRS are all of the resources corresponding to the downlink transmission; or, the resources corresponding to the downlink transmission include a portion of the resources corresponding to the DMRS.

[0285] In some embodiments, the first information is carried by at least one of the following: Radio Resource Control (RRC) signaling; Media Access Control-Control Unit (MAC CE); Downlink Control Information (DCI) signaling.

[0286] In some embodiments, the second information is used to configure downlink transmission on the PDCCH, and the second information is PDCCH configuration information carried by the RRC signaling; and / or, the second information is used to configure downlink transmission on the PDSCH, and the second information is PDSCH configuration information carried by the RRC signaling.

[0287] In some embodiments, the transceiver module 5101 is further configured to: send second information, the second information being configured to: instruct the terminal to support the overlap of resources corresponding to DMRS and resources corresponding to downlink transmissions; instruct the terminal to support receiving downlink transmissions that overlap with DMRS resources based on artificial intelligence (AI).

[0288] In some embodiments, the transceiver module 5101 is further configured to: send third information, the third information being used to indicate the AI ​​function applicable to the terminal, the AI ​​function including receiving at least one of the following based on AI: DMRS; downlink transmission.

[0289] In some embodiments, the transceiver module 5101 sends the third information in the following manner: before receiving the first information, the third information is sent; or, the terminal sends the third information after receiving the first information.

[0290] In some embodiments, the third information is also used to determine whether there is an AI function applicable to at least one PDCCH aggregation level, or to determine whether there is an AI function applicable to at least one modulation coding scheme.

[0291] In some embodiments, the transceiver module 5101 is further configured to: activate the AI ​​function after receiving the first information and after a first duration; activate the AI ​​function after receiving the fourth information and after a second duration, wherein the fourth information is received after the first information is received and the fourth information is used to schedule PDSCH; and activate the AI ​​function after sending feedback information of the first information and after a third duration.

[0292] In some embodiments, the second information is carried by RRC signaling and / or DCI signaling; or, the fourth information is carried by DCI signaling.

[0293] In some embodiments, the fourth information is used to determine at least one of the following: the type of DMRS; the time-frequency domain resources corresponding to the PDSCH; the port information of the DMRS; the power ratio of downlink transmission to DMRS; the number of symbols occupied by the DMRS; and the symbol positions occupied by the DMRS.

[0294] In some embodiments, the first information for configuring DMRS and the first information for configuring downlink transmission are in the same information, or the first information for configuring DMRS and the first information for configuring downlink transmission are in the same information.

[0295] Figure 5b is a schematic diagram of the structure of a network device according to an embodiment of this disclosure. The network device 5200 is used to perform any of the above methods.

[0296] In some embodiments, as shown in FIG5b, network device 5200 may include at least one of transceiver module 5201, processing module 5202, etc.

[0297] In some embodiments, the transceiver module 5201 is used to send first information, which is used to configure the demodulation reference signal DMRS, and second information is used to configure downlink transmission on the physical downlink control channel PDCCH or the physical downlink shared channel PDSCH, wherein the resources corresponding to DMRS and the resources corresponding to downlink transmission overlap.

[0298] In some embodiments, the overlap between the resources corresponding to the DMRS and the resources corresponding to the downlink transmission includes: the resources corresponding to the DMRS include a portion of the resources corresponding to the downlink transmission; or, the resources corresponding to the DMRS are all of the resources corresponding to the downlink transmission; or, the resources corresponding to the downlink transmission include a portion of the resources corresponding to the DMRS.

[0299] In some embodiments, the first information is carried by at least one of the following: Radio Resource Control (RRC) signaling; Media Access Control-Control Unit (MAC CE); Downlink Control Information (DCI) signaling.

[0300] In some embodiments, the second information is used to configure downlink transmission on the PDCCH, and the second information is PDCCH configuration information carried by the RRC signaling; and / or, the second information is used to configure downlink transmission on the PDSCH, and the second information is PDSCH configuration information carried by the RRC signaling.

[0301] In some embodiments, the transceiver module 5201 is further configured to: receive second information, the second information being configured to: instruct the terminal to support the overlap of resources corresponding to DMRS and resources corresponding to downlink transmissions; instruct the terminal to support receiving downlink transmissions that overlap with DMRS resources based on artificial intelligence (AI).

[0302] In some embodiments, the transceiver module 5201 is further configured to: receive third information, the third information being used to indicate the AI ​​function applicable to the terminal, the AI ​​function including receiving at least one of the following based on AI: DMRS; downlink transmission.

[0303] In some embodiments, the third information is received before the first information is sent; or, the third information is received after the first information is sent.

[0304] In some embodiments, the third information is also used to determine whether there is an AI function applicable to at least one PDCCH aggregation level, or to determine whether there is an AI function applicable to at least one modulation coding scheme.

[0305] In some embodiments, the AI ​​function is activated by the terminal after the terminal receives the first information and a first duration has elapsed; and / or, the AI ​​function is activated by the terminal after the terminal receives the fourth information and a second duration has elapsed, the fourth information is sent after the first information is sent, and the fourth information is used to schedule PDSCH; the AI ​​function is activated by the terminal after the terminal sends the feedback information of the first information and a third duration has elapsed.

[0306] In some embodiments, the second information is carried by RRC and / or DCI signaling; or, the fourth information is carried by DCI signaling.

[0307] In some embodiments, the fourth information is used to determine at least one of the following: the type of DMRS; the time-frequency domain resources corresponding to the PDSCH; the port information of the DMRS; the power ratio of downlink transmission to DMRS; the number of symbols occupied by the DMRS; and the symbol positions occupied by the DMRS.

[0308] In some embodiments, the first information for configuring DMRS and the first information for configuring downlink transmission are in the same information, or the first information for configuring DMRS and the first information for configuring downlink transmission are in the same information.

[0309] Figure 6a is a schematic diagram of the structure of the communication device proposed in an embodiment of this disclosure. The communication device 6100 can be a network device (e.g., access network device, core network device, etc.), a terminal (e.g., user equipment, etc.), a chip, chip system, or processor that supports the network device in implementing any of the above methods, or a chip, chip system, or processor that supports the terminal in implementing any of the above methods. The communication device 6100 can be used to implement the methods described in the above method embodiments; for details, please refer to the descriptions in the above method embodiments.

[0310] As shown in Figure 6a, the communication device 6100 is used to execute any of the above methods. In some embodiments, the communication device 6100 includes one or more processors 6101. The processor 6101 may be a general-purpose processor or a special-purpose processor, such as a baseband processor or a central processing unit. The baseband processor may be used to process communication protocols and communication data, and the central processing unit may be used to control communication devices (e.g., base stations, baseband chips, terminal devices, terminal device chips, DUs or CUs, etc.), execute programs, and process program data. Optionally, the communication device 6100 is used to execute any of the above methods. Optionally, one or more processors 6101 are used to invoke instructions to cause the communication device 6100 to execute any of the above methods.

[0311] In some embodiments, the communication device 6100 further includes one or more transceivers 6102. When the communication device 6100 includes one or more transceivers 6102, the transceiver 6102 performs at least one of the communication steps such as sending and / or receiving in the above method (e.g., steps S2101, S2102, and S2103, but not limited thereto), and the processor 6101 performs other steps (e.g., step S2104, but not limited thereto). In optional embodiments, the transceiver may include a receiver and / or a transmitter, which may be separate or integrated. Optionally, the terms transceiver, transceiver unit, transceiver, transceiver circuit, interface circuit, interface, etc., can be used interchangeably; the terms transmitter, transmitting unit, transmitter, transmitting circuit, etc., can be used interchangeably; the terms receiver, receiving unit, receiver, receiving circuit, etc., can be used interchangeably.

[0312] In some embodiments, the communication device 6100 further includes one or more memories 6103 for storing data and / or instructions. Optionally, one or more processors 6101 are used to invoke instructions stored in the memory 6103 to cause the communication device 6100 to perform any of the above methods. Optionally, all or part of the memory 6103 may also be located outside the communication device 6100. In an optional embodiment, the communication device 6100 may include one or more interface circuits 6104. Optionally, the interface circuit 6104 is connected to the memory 6103 and can be used to receive data and / or instructions from the memory 6103 or other devices, and can be used to send data and / or instructions to the memory 6103 or other devices. For example, the interface circuit 6104 can read data and / or instructions stored in the memory 6103 and send the data and / or instructions to the processor 6101.

[0313] The communication device 6100 described in the above embodiments may be a network device or a terminal, but the scope of the communication device 6100 described in this disclosure is not limited thereto, and the structure of the communication device 6100 may not be limited by FIG. 6a. The communication device may be a standalone device or 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.

[0314] Figure 6b is a schematic diagram of the chip structure proposed in an embodiment of this disclosure. For cases where the communication device 6100 can be a chip or a chip system, please refer to the schematic diagram of the chip 6200 shown in Figure 6b, but it is not limited thereto.

[0315] Chip 6200 includes one or more processors 6201. Chip 6200 is used to perform any of the methods described above.

[0316] In some embodiments, chip 6200 further includes one or more interface circuits 6202. Optionally, terms such as interface circuit, interface, and transceiver pin can be used interchangeably. In some embodiments, chip 6200 further includes one or more memories 6203 for storing data and / or instructions. Optionally, all or part of the memories 6203 may be located outside of chip 6200. Optionally, interface circuit 6202 is connected to memory 6203, and interface circuit 6202 can be used to receive data and / or instructions from memory 6203 or other devices, and interface circuit 6202 can be used to send data and / or instructions to memory 6203 or other devices. For example, interface circuit 6202 can read data and / or instructions stored in memory 6203 and send the data and / or instructions to processor 6201.

[0317] In some embodiments, the interface circuit 6202 performs at least one of the communication steps such as sending and / or receiving in the above-described method (e.g., steps S2101, S2102, and S2103, but not limited thereto). The interface circuit 6202 performing the communication steps such as sending and / or receiving in the above-described method refers, for example, to the interface circuit 6202 performing data and / or instruction interaction between the processor 6201, the chip 6200, the memory 6203, or the transceiver device. In some embodiments, the processor 6201 performs other steps (e.g., step S2104, but not limited thereto).

[0318] 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.

[0319] 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.

[0320] 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.

[0321] 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 in that, The method includes: The terminal receives first information, which is used to configure at least one of the following: demodulation reference signal DMRS; downlink transmission on physical downlink control channel PDCCH or physical downlink shared channel PDSCH; The resources corresponding to the DMRS overlap with the resources corresponding to the downlink transmission.

2. The method according to claim 1, characterized in that, The first information is used to configure downlink transmission on the PDCCH, and the first information is the PDCCH configuration information carried by the RRC signaling; and / or, The first information is used to configure downlink transmission on PDSCH, and the first information is the PDSCH configuration information carried by RRC signaling.

3. The method according to any one of claims 1-2, characterized in that, The method further includes: The terminal sends a second message, the second message being used for at least one of the following: The terminal is instructed to support the overlap between the resources corresponding to the DMRS and the resources corresponding to the downlink transmission; The terminal is instructed to support receiving downlink transmissions that overlap with the DMRS resources based on artificial intelligence (AI).

4. The method according to any one of claims 1-3, characterized in that, The method further includes: The terminal sends third information, which is used to indicate the AI ​​function applicable to the terminal. The AI ​​function includes receiving at least one of the following based on AI: the DMRS that overlaps with the downlink transmission resource; and the downlink transmission that overlaps with the DMRS resource.

5. The method according to claim 4, characterized in that, The third information is also used to determine whether there is an AI function applicable to at least one PDCCH aggregation level, or the third information is also used to determine whether there is an AI function applicable to at least one modulation and coding scheme.

6. The method according to any one of claims 4-5, characterized in that, The method further includes at least one of the following: After receiving the first information and after a first period of time, the AI ​​function is activated; After receiving the fourth information and after a second period of time, the AI ​​function is activated. The fourth information is received after the first information is received, and the fourth information is used to schedule PDSCH. The AI ​​function is activated after the feedback information of the first message is sent and a third time interval has elapsed.

7. The method according to any one of claims 1-6, characterized in that, The information received by the terminal for scheduling PDSCH is the fourth information, and the first information and / or the fourth information are further used to determine at least one of the following: The type of DMRS; The pattern of the DMRS; The time-frequency domain resources corresponding to the PDSCH and / or the DMRS; The port information of the DMRS; The power ratio of the downlink transmission to the DMRS; The number of symbols occupied by the DMRS; The symbol position occupied by the DMRS.

8. The method according to any one of claims 1-7, characterized in that, The first information for configuring the DMRS and the first information for configuring the downlink transmission are in the same information, or the first information for configuring the DMRS and the first information for configuring the downlink transmission are in different information.

9. The method according to any one of claims 1-8, characterized in that, The resources corresponding to the DMRS overlap with the resources corresponding to the downlink transmission, including: The resources corresponding to the DMRS include a portion of the resources corresponding to the downlink transmission; or, The resources corresponding to the DMRS are all the resources corresponding to the downlink transmission; or, The resources corresponding to the downlink transmission include a portion of the resources corresponding to the DMRS.

10. A communication method, characterized in that, The method includes: The network device sends first information, which is used to configure at least one of the following: demodulation reference signal DMRS; downlink transmission on physical downlink control channel PDCCH or physical downlink shared channel PDSCH; The resources corresponding to the DMRS overlap with the resources corresponding to the downlink transmission.

11. The method according to claim 10, characterized in that, The first information is used to configure downlink transmission on the PDCCH, and the first information is the PDCCH configuration information carried by the RRC signaling; and / or, The first information is used to configure downlink transmission on PDSCH, and the first information is the PDSCH configuration information carried by RRC signaling.

12. The method according to any one of claims 10-11, characterized in that, The method further includes: The network device receives second information, which is used for at least one of the following: The terminal is instructed to support the overlap between the resources corresponding to the DMRS and the resources corresponding to the downlink transmission; The terminal is instructed to support receiving downlink transmissions that overlap with the DMRS resources based on artificial intelligence (AI).

13. The method according to any one of claims 10-12, characterized in that, The method further includes: The network device receives third information, which is used to indicate the AI ​​function applicable to the terminal. The AI ​​function includes receiving at least one of the following based on AI: the DMRS overlapping with the downlink transmission; and the downlink transmission overlapping with the DMRS.

14. The method according to claim 13, characterized in that, The third information is also used to determine whether there is an AI function applicable to at least one PDCCH aggregation level, or the third information is also used to determine whether there is an AI function applicable to at least one modulation and coding scheme.

15. The method according to any one of claims 13-14, characterized in that, The AI ​​function is activated by the terminal after the terminal receives the first information and a first time period has elapsed; and / or, The AI ​​function is activated by the terminal after the terminal receives the fourth information and after a second period of time. The fourth information is sent after the first information is sent. The fourth information is used to schedule PDSCH. The AI ​​function is activated by the terminal after the terminal sends the feedback information of the first information and after a third period of time.

16. The method according to any one of claims 10-15, characterized in that, The information sent by the network device for scheduling PDSCH is fourth information, and the first information and / or the fourth information are used to further determine at least one of the following: The type of DMRS; The pattern of the DMRS; The time-frequency domain resources corresponding to the PDSCH and / or the DMRS; The port information of the DMRS; The power ratio of the downlink transmission to the DMRS; The number of symbols occupied by the DMRS; The symbol position occupied by the DMRS.

17. The method according to any one of claims 10-16, characterized in that, The first information for configuring the DMRS and the first information for configuring the downlink transmission are in the same information, or the first information for configuring the DMRS and the first information for configuring the downlink transmission are in the same information.

18. The method according to any one of claims 13-17, characterized in that, The resources corresponding to the DMRS overlap with the resources corresponding to the downlink transmission, including: The resources corresponding to the DMRS include a portion of the resources corresponding to the downlink transmission; or, The resources corresponding to the DMRS are all the resources corresponding to the downlink transmission; or, The resources corresponding to the downlink transmission include a portion of the resources corresponding to the DMRS.

19. A communication method, characterized in that, The method includes: The network device sends first information to the terminal, the first information being used to configure at least one of the following: demodulation reference signal DMRS; downlink transmission on physical downlink control channel PDCCH or physical downlink shared channel PDSCH; The resources corresponding to the DMRS overlap with the resources corresponding to the downlink transmission.

20. A communication device, characterized in that, The communication device is used to perform the communication method according to any one of claims 1-9 and 10-18.

21. A communication system, characterized in that, The device includes a terminal and a network device, wherein the terminal is configured to implement the communication method of claims 1-9, and the network device is configured to implement the communication method of claims 10-18.

22. A storage medium, characterized in that, The storage medium stores instructions that, when executed on a communication device, cause the communication device to perform the communication method as described in any one of claims 1-9 and 10-18.

23. A program product, characterized in that, It includes at least one of a program and instructions, wherein when the program and instructions are executed by a communication device, they implement the communication method according to any one of claims 1-9 and 10-18.

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