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: receiving first configuration information transmitted by a network device, the first configuration information being used for configuring at least one of a channel measurement resource (CMR) and an interference measurement resource (IMR), the CMR comprising N channel state information reference signals (CSI-RSs), N being a positive integer; and transmitting a first report to the network device, the first report being obtained based on at least one of the CMR and the IMR. Through the embodiments of the present disclosure, the communication efficiency can be improved.

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] During beam management, network devices provide configuration information for beam measurement. The terminal performs measurements based on the configuration information and reports the channel status information to the network devices.

[0003] Currently, network devices can use multiple transmission and receiving points (TRPs) to provide services to terminals. Summary of the Invention

[0004] This disclosure provides a communication method, communication device, communication system, storage medium, and program product.

[0005] According to a first aspect of the present disclosure, a communication method is proposed, executed by a terminal, the method comprising: receiving first configuration information sent by a network device, the first configuration information being used to configure at least one of channel measurement resources (CMR) and interference measurement resources (IMR), the CMR including N channel state information reference signals (CSI-RS), where N is a positive integer; and sending a first report to the network device, the first report being obtained based on at least one of the CMR and the IMR.

[0006] According to a second aspect of the present disclosure, a communication method is provided, executed by a network device, the method comprising: sending first configuration information to a terminal, the first configuration information being used to configure at least one of channel measurement resources (CMR) and interference measurement resources (IMR), the CMR including N channel state information reference signals (CSI-RS), where N is a positive integer; and receiving a first report sent by the network device, the first report being obtained based on at least one of the CMR and the IMR.

[0007] According to a third aspect of the present disclosure, a communication device is provided for performing the communication method of any of the above aspects.

[0008] According to a fourth 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 of the first aspect, and the network device is configured to implement the communication method of the second aspect.

[0009] According to a fifth 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 the method of the first aspect or the second aspect.

[0010] According to a sixth aspect of the present disclosure, a program product is provided, including at least one of a program and instructions, wherein when the program or instructions are executed by a communication device, the communication method of the first aspect or the second aspect is implemented.

[0011] In this embodiment of the present disclosure, the network device sends first configuration information to the terminal. The first configuration information is used to configure at least one of CMR and IMR, wherein CMR includes N CSI-RS. The terminal performs measurements based on at least one of CMR and IMR to obtain a first report, and the terminal sends the first report to the network device. This method can obtain a report that accurately characterizes the channel quality, thereby improving communication efficiency. Attached Figure Description

[0012] 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.

[0013] Figure 1 is a schematic diagram of the architecture of a communication system according to an embodiment of the present disclosure.

[0014] Figure 2 is an interactive schematic diagram of a communication method according to an embodiment of the present disclosure.

[0015] Figure 3 is a flowchart illustrating a communication method according to an embodiment of the present disclosure.

[0016] Figure 4 is a flowchart illustrating a communication method according to an embodiment of the present disclosure.

[0017] Figure 5A is a schematic diagram of the structure of the terminal proposed in an embodiment of this disclosure.

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

[0019] Figure 6A is a schematic diagram of the structure of the communication device proposed in an embodiment of this disclosure.

[0020] Figure 6B is a schematic diagram of the chip structure proposed in an embodiment of this disclosure. Detailed Implementation

[0021] This disclosure provides communication methods, communication devices, communication systems, storage media, and program products.

[0022] In a first aspect, embodiments of this disclosure propose a communication method executed by a terminal, the method comprising: receiving first configuration information sent by a network device, the first configuration information being used to configure at least one of a channel measurement resource (CMR) and an interference measurement resource (IMR), wherein the CMR includes N channel state information reference signals (CSI-RS), where N is a positive integer; and sending a first report to the network device, the first report being obtained based on at least one of the CMR and the IMR.

[0023] In the above embodiments, the network device sends first configuration information to the terminal. The first configuration information is used to configure at least one of CMR and IMR, wherein CMR includes N CSI-RS. The terminal performs measurements based on at least one of CMR and IMR to obtain a first report. The terminal sends the first report to the network device. This method can obtain a report that accurately characterizes the channel quality, thereby improving communication efficiency.

[0024] In conjunction with some embodiments of the first aspect, in some embodiments, the first report includes first indication information; the first indication information is used to indicate to the terminal to select M CSI-RS from the N CSI-RS, where M is a positive integer and M is less than or equal to N.

[0025] In the above embodiments, the first report sent by the terminal to the network device includes first indication information. The first indication information is used to indicate to the terminal to select M CSI-RS from N CSI-RS. The network device can know which M CSI-RS the terminal has selected based on the first indication information, thereby improving the accuracy of the report.

[0026] In conjunction with some embodiments of the first aspect, in some embodiments, the first indication information includes N bits, each bit corresponding to one CSI-RS.

[0027] In the above embodiments, the first report sent by the terminal to the network device includes first indication information. The first indication information is used to indicate to the terminal to select M CSI-RS from N CSI-RS. The first indication information includes N bits, each bit corresponding to one CSI-RS. That is, the N bits correspond to the N CSI-RS respectively. The network device can know which M CSI-RS the terminal has selected based on the N bits included in the first indication information, thereby improving the accuracy of the report.

[0028] In conjunction with some embodiments of the first aspect, in some embodiments, the first report further includes channel state information (CSI), the CSI including at least one of the following: precoding matrix indicator (PMI); channel quality indicator (CQI); and rank indicator (RI).

[0029] In the above embodiments, the first report sent by the terminal to the network device includes CSI, which includes at least one of PMI, CQI, and RI, and can optimize signal transmission and improve communication performance.

[0030] In conjunction with some embodiments of the first aspect, in some embodiments, the CSI includes CQI; the interference portion of the CQI includes at least one of a first interference and a second interference, wherein the first interference is obtained based on NM unselected CSI-RSs and the second interference is obtained based on the IMR.

[0031] In the above embodiments, the terminal obtains a first interference based on the NM unselected CSI-RS and a second interference based on the IMR. The terminal determines the interference portion of the CQI based on at least one of the first interference and the second interference. The terminal considers the interference caused by the NM unselected CSI-RS, which makes the determined interference more accurate.

[0032] In conjunction with some embodiments of the first aspect, in some embodiments, the first configuration information is further used to determine an indication type, the indication type including a first type or a second type; the first type is used for the terminal to determine the interference portion of the CQI based on the unselected NM CSI-RS, or based on the IMR and the unselected NM CSI-RS; the second type is used for the terminal to determine the interference portion of the CQI based on the IMR; the first report includes the CQI.

[0033] In the above embodiments, the first configuration information sent by the network device to the terminal is further used to determine the indication type. The terminal determines, based on the indication type, whether to consider the unselected NM CSI-RS when calculating the interference portion of the CQI, thereby obtaining a first report that meets the network device's requirements. That is, the terminal can provide accurate feedback information according to the network device's needs. In conjunction with some embodiments of the first aspect, in some embodiments, the indication type includes a CSI type or a codebook type.

[0034] In the above embodiments, the first configuration information sent by the network device to the terminal is also used to determine the indication type, which includes CSI type or codebook type. The terminal network device configures the indication type feedback information to obtain a first report that meets the network device requirements.

[0035] In conjunction with some embodiments of the first aspect, in some embodiments, the first report includes a first portion, the first portion including the first indication information.

[0036] In the above embodiments, the first report may include a first part and a second part. The first indication information may be included in the first part. The terminal sends the first report to the network device. The network device can obtain the first indication information from the first part of the first report. The network device can know which M CSI-RS the terminal has selected based on the N bits included in the first indication information, thereby improving the accuracy of the report.

[0037] In conjunction with some embodiments of the first aspect, in some embodiments, the first part further includes at least one of the following: Channel State Information Reference Signal Resource Indicator (CRI) information; Wideband Channel Quality Information (CQI) information; Narrowband Channel Quality Information (CQI) information; Number of non-zero wideband amplitude coefficients; Indication information for the number of non-zero coefficients; Indication information for the position of non-zero coefficients; Mode indication; Rank indication information.

[0038] In the above embodiments, the first report sent by the terminal to the network device includes at least one of the following: Channel State Information Reference Signal Resource Indicator (CRI), Wideband Channel Quality Information (CQI), Narrowband Channel Quality Information (CQI), Number of Non-zero Wideband Amplitude Coefficients, Indication of Number of Non-zero Coefficients, Indication of Position of Non-zero Coefficients, Mode Indication, and Rank Indication. This can help the network device optimize resource allocation and improve transmission efficiency.

[0039] In conjunction with some embodiments of the first aspect, in some embodiments, the first report further includes a second part, the second part including at least one of the following: spatial domain basis vector parameter information; frequency domain basis vector parameter information; non-zero coefficient position indication information; phase coefficient information; amplitude coefficient information; wideband channel quality information (CQI); and narrowband channel quality information (CQI).

[0040] In the above embodiments, the first report sent by the terminal to the network device includes at least one of spatial basis vector parameter information, frequency basis vector parameter information, non-zero coefficient position indication information, phase coefficient information, amplitude coefficient information, wideband channel quality information (CQI), and narrowband channel quality information (CQI), which can help the network device optimize resource allocation and improve transmission efficiency.

[0041] Secondly, embodiments of this disclosure propose a communication method executed by a network device, the method comprising: sending first configuration information to a terminal, the first configuration information being used to configure at least one of channel measurement resources (CMR) and interference measurement resources (IMR), the CMR including N channel state information reference signals (CSI-RS), where N is a positive integer; and receiving a first report sent by the network device, the first report being obtained based on at least one of the CMR and the IMR.

[0042] In the above embodiments, the network device sends first configuration information to the terminal. The first configuration information is used to configure at least one of CMR and IMR, wherein CMR includes N CSI-RS. The terminal performs measurements based on at least one of CMR and IMR to obtain a first report. The terminal sends the first report to the network device. This method can obtain a report that accurately characterizes the channel quality, thereby improving communication efficiency.

[0043] In conjunction with some embodiments of the second aspect, in some embodiments, the first report includes first indication information; the first indication information is used to indicate to the terminal to select M CSI-RS from the N CSI-RS, where M is a positive integer and M is less than or equal to N.

[0044] In conjunction with some embodiments of the second aspect, in some embodiments, the first indication information includes N bits, each bit corresponding to a CSI-RS.

[0045] In conjunction with some embodiments of the second aspect, in some embodiments, the first report further includes channel state information (CSI), the CSI including at least one of the following: precoding matrix indicator (PMI); channel quality indicator (CQI); and rank indicator (RI).

[0046] In conjunction with some embodiments of the second aspect, in some embodiments, the CSI includes CQI; the interference portion of the CQI includes at least one of a first interference and a second interference, wherein the first interference is obtained based on NM unselected CSI-RSs and the second interference is obtained based on the IMR.

[0047] In conjunction with some embodiments of the second aspect, in some embodiments, the first configuration information is further used to determine an indication type, the indication type including a first type or a second type; the first type is used by the terminal to determine the interference portion of the CQI based on NM unselected CSI-RS, or based on the IMR and NM unselected CSI-RS; the second type is used by the terminal to determine the interference portion of the CQI based on the IMR; the first report includes the CQI.

[0048] In conjunction with some embodiments of the second aspect, in some embodiments, the indication type includes a CSI type or a codebook type.

[0049] In conjunction with some embodiments of the second aspect, in some embodiments, the first report includes a first portion, which includes the first indication information.

[0050] In conjunction with some embodiments of the second aspect, in some embodiments, the first part further includes at least one of the following: Channel State Information Reference Signal Resource Indicator (CRI); Wideband Channel Quality Information (CQI); Narrowband Channel Quality Information (CQI); Number of Non-zero Wideband Amplitude Coefficients; Indication Information of the Number of Non-zero Coefficients; Indication Information of the Position of Non-zero Coefficients; Mode Indication; Rank Indication Information.

[0051] In conjunction with some embodiments of the second aspect, in some embodiments, the first report further includes a second part, the second part including at least one of the following: spatial domain basis vector parameter information; frequency domain basis vector parameter information; non-zero coefficient position indication information; phase coefficient information; amplitude coefficient information; wideband channel quality information (CQI); and narrowband channel quality information (CQI).

[0052] Thirdly, embodiments of this disclosure provide a communication device for performing the communication method of the first or second aspect.

[0053] Fourthly, embodiments of this disclosure propose a communication system including a terminal and a network device, wherein the terminal is configured to implement the communication method of the first aspect, and the network device is configured to implement the communication method of the second aspect.

[0054] Fifthly, embodiments of this disclosure provide a storage medium storing instructions that, when executed on a communication device, cause the communication device to perform the method of the first aspect or the second aspect.

[0055] In a sixth aspect, embodiments of this disclosure provide a program product comprising at least one of a program and instructions, wherein when the program or instructions are executed by a communication device, the communication device performs the communication method of the first aspect or the second aspect.

[0056] In a seventh aspect, embodiments of this disclosure provide a chip or chip system. The chip or chip system includes processing circuitry configured to perform the methods described in optional implementations of the first or second aspect.

[0057] It is understood that the aforementioned communication devices, communication systems, storage media, program products, computer programs, chips, or chip systems are all used to execute the methods proposed in the embodiments of this disclosure. Therefore, the beneficial effects they can achieve can be referred to the beneficial effects in the corresponding methods, and will not be repeated here.

[0058] In some embodiments, the terms communication method, information sending method, information reporting method, and information receiving method can be used interchangeably.

[0059] 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.

[0060] In each of the disclosed embodiments, unless otherwise specified or in case of logical conflict, the terminology and / or descriptions of the embodiments are consistent and can be referenced by each other. Technical features in different embodiments can be combined to form new embodiments based on their inherent logical relationships.

[0061] 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.

[0062] 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.

[0063] In the embodiments of this disclosure, "multiple" refers to two or more.

[0064] In some embodiments, the terms “at least one of”, “one or more”, “a plurality of”, “multiple”, etc., may be used interchangeably.

[0065] 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 B); in some embodiments, B (execute B regardless of A); in some embodiments, execution is selected from A and B (A and B are selectively executed); in some embodiments, A and B (both A and B are executed). The same applies when there are more branches such as A, B, C, etc.

[0066] In some embodiments, the notation "A or B" may include the following technical solutions, depending on the situation: in some embodiments, A (execution of A regardless of B); in some embodiments, B (execution of B regardless of A); 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, C, etc.

[0067] 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.

[0068] In some embodiments, “including A,” “containing A,” “for indicating A,” and “carrying A” can be interpreted as directly carrying A or indirectly indicating A.

[0069] In some embodiments, the terms “in response to…”, “in response to determining…”, “in the case of…”, “when…”, “if…”, “if…”, etc., can be used interchangeably.

[0070] 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”.

[0071] In some embodiments, devices, etc., can be interpreted as physical or virtual, and their names are not limited to the names recorded in the embodiments. Terms such as “device”, “equipment”, “circuit”, “network element”, “node”, “function”, “unit”, “section”, “system”, “network”, “chip”, “chip system”, “entity”, and “subject” can be used interchangeably.

[0072] In some embodiments, "network" can be interpreted as devices included in a network (e.g., access network devices, core network devices, etc.).

[0073] 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.

[0074] 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.

[0075] 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.

[0076] 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.

[0077] In some embodiments, the acquisition of data, information, etc., may comply with the laws and regulations of the country where the location is situated.

[0078] In some embodiments, data, information, etc., may be obtained with the user's consent.

[0079] 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.

[0080] Figure 1 is a schematic diagram of the architecture of a communication system according to an embodiment of the present disclosure.

[0081] As shown in Figure 1, the communication system 100 includes a terminal 101 and a network device 102.

[0082] In some embodiments, terminal 101 may be, for example, a user equipment (UE), including 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 not limited thereto.

[0083] In some embodiments, network device 102 may be a functional network element in a core network device. The core network device may be a single device, including a first network element, a second network element, etc., or it may be multiple devices or a group of devices, each including all or part of the first network element, the second network element, etc. Network elements may be virtual or physical. The core network may include, for example, at least one of an Evolved Packet Core (EPC), a 5G Core Network (5GCN), and a Next Generation Core (NGC).

[0084] In some embodiments, network device 102 may include at least one of access network device and core network device.

[0085] 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, but is not limited to, 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.

[0086] 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.

[0087] 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.

[0088] 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).

[0089] 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.

[0090] 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.

[0091] The embodiments disclosed herein can be applied to Long Term Evolution (LTE), LTE-Advanced (LTE-A), LTE-Beyond (LTE-B), SUPER 3G, IMT-Advanced, 4th generation mobile communication system (4G), 5th generation mobile communication system (5G), 5G new radio (NR), 6th generation mobile communication system (6G), 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).

[0092] When a base station provides services to a terminal using two transmission and / or reception points (TRPs), it configures channel state information (CSI) measurement settings for up to two TRPs. The CSI measurement settings include channel measurement resources (CMR) and interference measurement resources (IMR).

[0093] For a single terminal, if it needs to support up to four TRPs simultaneously, CSI measurement configuration is required for these four TRPs. The terminal can select one or more TRPs and feed back CSI, including Precoding Matrix Indicator (PMI), Rank Indication (RI), and Channel Quality Indicator (CQI), to the base station. However, related technologies only have one IMR configuration, meaning only one type of interference can be measured. Therefore, the interference measured by this IMR is interference outside the four TRPs. If the terminal only selects some of the four TRPs, the unselected TRPs cannot be used to transmit to other terminals for accurate interference measurement, as this would introduce new interference to those terminals. This reduces spectral efficiency.

[0094] In order for the TRPs that were not selected by the UE to be transmitted to other UEs, the terminal needs to consider the interference of the unselected TRPs when performing CSI calculation, mainly CQI calculation.

[0095] This disclosure provides a communication method in which a network device sends first configuration information to a terminal. The first configuration information is used to configure at least one of CMR and IMR, wherein CMR includes N CSI-RS. The terminal performs measurements based on at least one of CMR and IMR to obtain a first report, and the terminal sends the first report to the network device. This method can obtain a report that accurately characterizes the channel quality, thereby improving communication efficiency.

[0096] Figure 2 is an interactive schematic diagram of a communication method according to an embodiment of the present disclosure. As shown in Figure 2, the embodiments of the present disclosure relate to a communication method, which includes:

[0097] Step S2101: The network device sends the first configuration information to the terminal.

[0098] In some embodiments, the terminal receives first configuration information sent by the network device.

[0099] In some embodiments, the first configuration information is used to configure at least one of a channel measurement resource (CMR) and an interference measurement resource (IMR), wherein the CMR includes N channel state information reference signals (CSI-RS), where N is a positive integer.

[0100] In one example, the first configuration information is used only to configure CMR. In another example, the first configuration information is used to configure both CMR and IMR.

[0101] In some embodiments, the first configuration information may configure one or more IMRs.

[0102] In some embodiments, CMR is used by the terminal to perform channel measurements, and IMR is used by the terminal to perform interference measurements.

[0103] In some embodiments, the terminal may select M CSI-RS from the N CSI-RS included in the CMR, perform measurements based on the selected M CSI-RS, and obtain measurement results. For example, the measurement results may include signal measurement results.

[0104] In some embodiments, the terminal may perform measurements based on NM unselected CSI-RS and use the resulting measurements as a second interference.

[0105] In some embodiments, the terminal may perform measurements based on IMR and use the resulting measurements as a first interference.

[0106] In some embodiments, the terminal may obtain a Channel Quality Indicator (CQI) based on at least one of the measurement results obtained from M selected CSI-RS, a first interference obtained from NM unselected CSI-RS, and a second interference obtained from IMR measurements.

[0107] In some embodiments, the first configuration information is further used to determine an indication type, which includes a first type or a second type; the first type is used for the terminal to determine the interference portion of the CQI based on the unselected NM CSI-RS, or based on the IMR and the unselected NM CSI-RS; the second type is used for the terminal to determine the interference portion of the CQI based on the IMR; the first report includes the CQI.

[0108] In some embodiments, the first configuration information is further used to determine an indication type, which includes a first type or a second type; the first type is used for the terminal to determine the interference portion of the CQI based on IMR and NM unselected CSI-RS; the second type is used for the terminal to determine the interference portion of the CQI based on IMR; the first report includes the CQI.

[0109] In some embodiments, the first configuration information is further used to configure an indication type, which may be a first type or a second type. The first type indicates that the terminal determines the interference portion of the CQI based on the NM unselected CSI-RS, while the second type indicates that the terminal determines the interference portion of the CQI based on the IMR.

[0110] In some embodiments, when the indication type is the first type, the terminal needs to consider the interference from the unselected NM CSI-RS when calculating the interference portion of the CQI. That is, the terminal determines the interference portion of the CQI based on the unselected NM CSI-RS. In one example, the terminal determines the interference portion of the CQI based solely on the unselected NM CSI-RS. In another example, the terminal determines the interference portion of the CQI based on the IMR and the unselected NM CSI-RS.

[0111] In some embodiments, when the indication type is the second type, the terminal calculates the interference portion of the CQI based on the IMR.

[0112] In some embodiments, the indication type includes CSI type or codebook type.

[0113] In some embodiments, the first type may be a CSI type or a codebook type, and the second type may also be a CSI type or a codebook type.

[0114] In some embodiments, the CSI type may include a first type or a second type, and the codebook type may include a first type or a second type.

[0115] In some embodiments, the first and second types are CSI types or codebook types that take into account different interferences for CJT (coherent joint transmission).

[0116] In step S2102, the terminal obtains a first report based on the first configuration information.

[0117] In some embodiments, the terminal performs measurements on the CMR and IMR configured based on the first configuration information to obtain a first report.

[0118] In some embodiments, the first report includes first indication information; the first indication information is used to indicate to the terminal to select M CSI-RS from N CSI-RS, where M is a positive integer and M is less than or equal to N.

[0119] In some embodiments, after the terminal determines which M CSI-RS out of N CSI-RS to select, it determines first indication information, which is used to inform the network device which M CSI-RS the terminal has selected.

[0120] In some embodiments, the first indication information includes N bits, each bit corresponding to one CSI-RS.

[0121] In some embodiments, the bit value corresponding to each bit in the first indication information is used to indicate whether the CSI-RS corresponding to that bit is a selected CSI-RS. For example, a bit value of 1 indicates selection, and a bit value of 0 indicates non-selection. For example, a bit value of 0 for the first bit indicates that the first CSI-RS is not selected. As another example, a bit value of 1 for the second bit indicates that the second CSI-RS is selected.

[0122] In some embodiments, the first report further includes Channel State Information (CSI), which includes at least one of the following: Precoding Matrix Indicator (PMI); Channel Quality Indicator (CQI); Rank Indication (RI).

[0123] In some embodiments, the terminal determines the CSI based on at least one of the selected M CSI-RS, the unselected NM CSI-RS, and the IMR, and includes the CSI in the first report.

[0124] In some embodiments, CSI includes CQI; the interference portion of CQI includes at least one of a first interference and a second interference, wherein the first interference is obtained based on NM unselected CSI-RS and the second interference is obtained based on IMR.

[0125] In some embodiments, the terminal can determine the signal portion of CQI based on the measurement results obtained from M selected CSI-RSs; and determine the interference portion of CQI based on the first interference obtained from NM unselected CSI-RSs and the second interference obtained based on IMR.

[0126] In some embodiments, the terminal considers interference from the unselected NM CSI-RS when calculating the CQI. That is, when calculating the interference portion of the CQI, the terminal includes not only the interference measured on the IMR, but also the received power on the unselected NM CSI-RS as interference.

[0127] In multi-TRP scenarios, a terminal can select one or more TRPs to provide services simultaneously. In this case, the network device needs to configure CSI measurements for these multiple TRPs. Taking four TRPs as an example, the network device configures CSI measurements for these four TRPs. The first configuration information in the network device configuration includes CMR and IMR. CMR is used for channel measurements of these four TRPs, and IMR is used for interference measurements of the remaining TRPs. However, if the terminal only selects some of these four TRPs, to ensure accurate interference measurement, the unselected TRPs cannot be used to communicate with other terminals. This is because if unselected TRPs communicate with other terminals, it will introduce new interference to the current terminal.

[0128] In this embodiment of the disclosure, the CMR configured in the network device includes N CSI-RSs. The terminal can select M CSI-RSs from the N CSI-RSs for channel measurement. When determining interference, the terminal considers the NM unselected CSI-RSs and the IMR. In this way, during actual communication, the terminal can select some TRPs from multiple TRPs for communication, while the unselected TRPs can communicate with other terminals. Communication between unselected TRPs and other terminals will not introduce new interference to the current terminal.

[0129] Step S2103: The terminal sends a first report to the network device.

[0130] In some embodiments, the network device receives a first report sent by the terminal.

[0131] In some embodiments, the first report is obtained based on at least one of CMR and IMR.

[0132] In some embodiments, the first report may be a CSI report.

[0133] In some embodiments, the first report may include a first part and a second part, the first part may also be referred to as part I or part 1, and the second part may also be referred to as part II or part 2.

[0134] In some embodiments, the first portion may include the first indication information described above. When the first portion includes the first indication information, a fixed size is required.

[0135] In some embodiments, the first part further includes at least one of the following: Channel State Information Reference Signal Resource Indicator (CRI) information; Wideband Channel Quality Information (CQI); Narrowband Channel Quality Information (CQI); Number of Non-zero Wideband Amplitude Coefficients; Indication of the Number of Non-zero Coefficients; Indication of the Position of Non-zero Coefficients; Mode Indication; Rank Indication.

[0136] In some embodiments, the first report further includes a second part, which includes at least one of the following: spatial basis vector parameter information; frequency basis vector parameter information; non-zero coefficient position indication information; phase coefficient information; amplitude coefficient information; wideband channel quality information (CQI); and narrowband channel quality information (CQI).

[0137] The broadband CQI included in the second part may correspond to a different CRI than the broadband CQI included in the first part.

[0138] The communication method provided in this disclosure involves a network device sending first configuration information to a terminal. The first configuration information is used to configure at least one of CMR and IMR, wherein CMR includes N CSI-RS. The terminal performs measurements based on at least one of CMR and IMR to obtain a first report, and the terminal sends the first report to the network device. This method can obtain a report that accurately characterizes the channel quality, thereby improving communication efficiency.

[0139] The communication method involved in the embodiments of this disclosure may include at least one of steps S2101 to S2103. For example, step S2101 may be implemented as a standalone embodiment, step S2102 may be implemented as a standalone embodiment, step S2103 may be implemented as a standalone embodiment, and step S2101+S2103 may be implemented as a standalone embodiment, but is not limited thereto.

[0140] In some embodiments, step S2101 is optional, and one or more of these steps may be omitted or substituted in different embodiments.

[0141] In some embodiments, step S2102 is optional, and one or more of these steps may be omitted or substituted in different embodiments.

[0142] In some embodiments, step S2103 is optional, and one or more of these steps may be omitted or substituted in different embodiments.

[0143] In some embodiments, other alternative implementations described before or after the specification corresponding to Figure 2 may be referred to.

[0144] 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.

[0145] In some embodiments, the terms “downlink control information (DCI),” “downlink (DL) assignment,” “DL DCI,” “uplink (UL) grant,” and “UL DCI” can be used interchangeably.

[0146] In some embodiments, terms such as "physical downlink shared channel (PDSCH)" and "DL data" can be used interchangeably, as can terms such as "physical uplink shared channel (PUSCH)" and "UL data".

[0147] 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.”

[0148] In some embodiments, the terms "precoding", "precoder", "weight", "precoding weight", "quasi-co-location (QCL)", "transmission configuration indication (TCI) status", "spatial relation", "spatial domain filter", "transmission power", "phase rotation", "antenna port", "antenna port group", "layer", "the number of layers", "rank", "resource", "resource set", "resource group", "beam", "beam width", "beam angular degree", "antenna", "antenna element", and "panel" can be used interchangeably.

[0149] In some embodiments, “get,” “obtain,” “receive,” “transmit,” “bidirectional transmission,” and “send and / or receive” can be used interchangeably and can be interpreted as receiving from other entities, obtaining from protocols, obtaining from higher layers, obtaining through self-processing, or autonomous implementation, among other meanings.

[0150] In some embodiments, terms such as “send,” “transmit,” “report,” “distribute,” “transfer,” “bidirectional transmission,” “send and / or receive” can be used interchangeably.

[0151] In some embodiments, terms such as "certain," "preset," "default," "set," "indicated," "a certain," "any," and "first" can be used interchangeably. "Certain A," "preset A," "default A," "set A," "indicated A," "a certain A," "any A," and "first A" can be interpreted as A pre-defined in a protocol or the like, or as A obtained through setting, configuration, or instruction, or as specific A, a certain A, any A, or first A, but are not limited thereto.

[0152] In some embodiments, the determination or judgment can be made by a value represented by 1 bit (0 or 1), or by a true or false value (Boolean value (bool)) represented by true or false, or by a numerical comparison (e.g., a comparison with a predetermined value), but is not limited thereto.

[0153] In some embodiments, "not expecting to receive" can be interpreted as not receiving on time domain resources and / or frequency domain resources, or as not performing subsequent processing on the data after receiving it; "not expecting to send" can be interpreted as not sending, or as sending but not expecting the receiver to respond to the sent content.

[0154] Figure 3 is a flowchart illustrating a communication method according to an embodiment of the present disclosure. As shown in Figure 3, the embodiments of the present disclosure relate to a communication method executed by a terminal, the method including:

[0155] Step S3101: Receive the first configuration information sent by the network device.

[0156] The optional implementation of step S3101 can be found in the optional implementation of step S2101 in Figure 2 and other related parts in the embodiments involved in Figure 2, which will not be repeated here.

[0157] In some embodiments, the terminal receives first configuration information sent by a network device, but is not limited thereto; it may also receive first information sent by other entities.

[0158] In some embodiments, the terminal obtains first configuration information defined by the protocol.

[0159] In some embodiments, the terminal obtains first configuration information from the upper layer(s).

[0160] In some embodiments, the terminal processes the information to obtain the first configuration information.

[0161] In some embodiments, step S3101 is omitted, and the terminal autonomously implements the function indicated by the first configuration information, or the above function is the default or default value.

[0162] Step S3102: Obtain the first report based on the first configuration information.

[0163] The optional implementation of step S3102 can be found in the optional implementation of step S2102 in Figure 2 and other related parts in the embodiments involved in Figure 2, which will not be repeated here.

[0164] Step S3103: Send the first report to the network device.

[0165] The optional implementation of step S3103 can be found in the optional implementation of step S2103 in Figure 2 and other related parts in the embodiments involved in Figure 2, which will not be repeated here.

[0166] In some embodiments, the terminal sends a first report to a network device, but is not limited thereto; it may also send a first report to other entities.

[0167] The communication method involved in the embodiments of this disclosure may include at least one of steps S3101 to S3103. For example, step S3101 may be implemented as an independent embodiment, step S3102 may be implemented as an independent embodiment, step S3103 may be implemented as an independent embodiment, and step S3101+S3103 may be implemented as an independent embodiment, but is not limited thereto.

[0168] In some embodiments, step S3101 is optional, and one or more of these steps may be omitted or substituted in different embodiments.

[0169] In some embodiments, step S3102 is optional, and one or more of these steps may be omitted or substituted in different embodiments.

[0170] In some embodiments, step S3103 is optional, and one or more of these steps may be omitted or substituted in different embodiments.

[0171] Figure 4 is a flowchart illustrating a communication method according to an embodiment of the present disclosure. As shown in Figure 4, the embodiments of the present disclosure relate to a communication method executed by a network device, the method including:

[0172] Step S4101: Send the first configuration information to the terminal.

[0173] The optional implementation of step S4101 can be found in the optional implementation of step S2101 in Figure 2 and other related parts in the embodiments involved in Figure 2, which will not be repeated here.

[0174] In some embodiments, the network device sends first configuration information to the terminal, but it is not limited to this; it may also send the first configuration information to other entities.

[0175] Step S4102: Receive the first report sent by the receiving terminal.

[0176] The optional implementation of step S4102 can be found in the optional implementation of step S2103 in Figure 2 and other related parts in the embodiments involved in Figure 2, which will not be repeated here.

[0177] In some embodiments, the network device receives a first report sent by a terminal, but is not limited thereto; it may also receive a first report sent by other entities.

[0178] In some embodiments, network devices acquire reports as defined by a protocol.

[0179] In some embodiments, network devices obtain reports from upper layer(s).

[0180] In some embodiments, the network device processes the data to generate a report.

[0181] In some embodiments, step S4102 is omitted, and the network device autonomously implements the function indicated in the report, or the above function is defaulted or set to default.

[0182] The communication method involved in the embodiments of this disclosure may include at least one of steps S4101 to S4102. For example, step S4101 may be implemented as a separate embodiment, and step S4102 may be implemented as a separate embodiment, but are not limited thereto.

[0183] In some embodiments, step S4101 is optional, and one or more of these steps may be omitted or substituted in different embodiments.

[0184] In some embodiments, step S4102 is optional, and one or more of these steps may be omitted or substituted in different embodiments.

[0185] In some embodiments, the above methods may include the methods of the embodiments described above on the communication system side, terminal side, network device side, etc., which will not be repeated here.

[0186] This disclosure proposes a multi-TRP CSI reporting method to improve CQI feedback accuracy and enhance transmission performance based on multi-TRP. The method includes at least one of the following:

[0187] In some embodiments, the terminal receives first configuration information sent by the base station, the first configuration information being used to configure CMR, wherein the CMR includes N CSI-RS; the first configuration information is also used to configure at least one IMR. The terminal performs measurements based on the CMR and IMR and sends a first report.

[0188] In some embodiments, after the terminal determines which M CSI-RSs out of N CSI-RSs have been selected, it determines first indication information. The first indication information is used to inform the base station terminal which CSI-RSs have been selected (using N bits, each bit corresponding to one CSI-RS). The terminal determines the CSI based on the selected M CSI-RSs and the unselected NM CSI-RSs. The first report includes the first indication information and the CSIs.

[0189] In some embodiments, the CSI includes at least one of the following: PMI, CQI, RI.

[0190] In some embodiments, the terminal considers interference from the NM unselected CSI-RS when calculating CQI.

[0191] In other words, the interference when calculating CQI includes not only the interference measured on the IMR, but also the received power on the unselected NM CSI-RS as interference.

[0192] In some embodiments, the first configuration information is further used to determine a type indication: CSI type or codebook type.

[0193] In some embodiments, the type includes a first type or a second type. When the type is the first type, the CQI calculation needs to consider the interference from the NM unselected CSI-RS. When the type is the second type, the CQI calculation only needs to consider the interference measured on the IMR.

[0194] In some embodiments, the first report comprises two parts.

[0195] In some embodiments, the first indication information can be placed in part I of the CSI feedback, in which case a fixed size is required;

[0196] Part I also includes the following:

[0197] Channel state information references signal resource indication (CRI) information;

[0198] Broadband Channel Quality Information (CQI);

[0199] Narrowband Channel Quality Information (CQI);

[0200] Number of non-zero bandwidth amplitude coefficients;

[0201] Information indicating the number of non-zero coefficients;

[0202] Non-zero coefficient position indication information;

[0203] Mode indication;

[0204] Rank indicator information.

[0205] Part II also includes the following:

[0206] Spatial basis vector parameter information;

[0207] Frequency domain basis vector parameter information;

[0208] Non-zero coefficient position indication information;

[0209] Phase coefficient information;

[0210] Amplitude coefficient information.

[0211] Broadband Channel Quality Information (CQI); can correspond to different CRIs than part I.

[0212] Narrowband Channel Quality Information (CQI).

[0213] When a terminal serves multiple TRPs or multiple Remote Radio Headers (RRHs), a CSI measurement reporting method is designed to take into account actual interference, making CQI feedback more accurate, thereby achieving transmission performance based on multiple TRPs / RRHs.

[0214] In the embodiments disclosed herein, some or all of the steps and their optional implementations may be arbitrarily combined with some or all of the steps in other embodiments, or may be arbitrarily combined with the optional implementations in other embodiments.

[0215] This disclosure also provides an apparatus for implementing any of the above methods. For example, an apparatus is provided that includes units or modules for implementing the steps performed by the terminal in any of the above methods. Alternatively, another apparatus is provided 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.

[0216] 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.

[0217] 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).

[0218] Figure 5A is a schematic diagram of the terminal structure proposed in an embodiment of this disclosure. As shown in Figure 5A, the terminal 5100 may include a transceiver module 5101. In some embodiments, the transceiver module 5101 receives first configuration information sent by a network device and sends a first report to the network device. Optionally, the transceiver module is used to perform at least one of the transceiver steps (such as step S2101, but not limited thereto) performed by the terminal in any of the above methods, which will not be described in detail here.

[0219] In some embodiments, the terminal may further include a processing module.

[0220] In some embodiments, the first report includes first indication information; the first indication information is used to indicate to the terminal to select M CSI-RS from the N CSI-RS, where M is a positive integer and M is less than or equal to N.

[0221] In some embodiments, the first indication information includes N bits, each bit corresponding to one CSI-RS.

[0222] In some embodiments, the first report further includes channel state information (CSI), which includes at least one of the following: precoding matrix indicator (PMI); channel quality indicator (CQI); and rank indicator (RI).

[0223] In some embodiments, the CSI includes CQI; the interference portion of the CQI includes at least one of a first interference and a second interference, wherein the first interference is obtained based on NM unselected CSI-RS and the second interference is obtained based on the IMR.

[0224] In some embodiments, the first configuration information is further used to determine an indication type, the indication type including a first type or a second type; the first type is used for the terminal to determine the interference portion of the CQI based on the unselected NM CSI-RS, or based on the IMR and the unselected NM CSI-RS; the second type is used for the terminal to determine the interference portion of the CQI based on the IMR; the first report includes the CQI.

[0225] In some embodiments, the indication type includes a CSI type or a codebook type.

[0226] In some embodiments, the first report includes a first portion, which includes the first indication information.

[0227] In some embodiments, the first part further includes at least one of the following: Channel State Information Reference Signal Resource Indicator (CRI); Wideband Channel Quality Information (CQI); Narrowband Channel Quality Information (CQI); Number of Non-zero Wideband Amplitude Coefficients; Indication of Number of Non-zero Coefficients; Indication of Position of Non-zero Coefficients; Mode Indication; Rank Indication.

[0228] In some embodiments, the first report further includes a second part, the second part including at least one of the following: spatial basis vector parameter information; frequency basis vector parameter information; non-zero coefficient position indication information; phase coefficient information; amplitude coefficient information; wideband channel quality information (CQI); and narrowband channel quality information (CQI).

[0229] Figure 5B is a schematic diagram of the structure of a network device according to an embodiment of this disclosure. As shown in Figure 5B, the network device 5200 may include a transceiver module 5201. In some embodiments, the transceiver module 5201 is used to send first configuration information to a terminal and receive a first report sent by the terminal. Optionally, the transceiver module is used to perform at least one of the sending and receiving steps performed by the network device in any of the above methods, which will not be described in detail here.

[0230] In some embodiments, the network device may further include a processing module.

[0231] In some embodiments, the first report includes first indication information; the first indication information is used to indicate to the terminal to select M CSI-RS from the N CSI-RS, where M is a positive integer and M is less than or equal to N.

[0232] In some embodiments, the first indication information includes N bits, each bit corresponding to one CSI-RS.

[0233] In some embodiments, the first report further includes channel state information (CSI), which includes at least one of the following: precoding matrix indicator (PMI); channel quality indicator (CQI); and rank indicator (RI).

[0234] In some embodiments, the CSI includes CQI; the interference portion of the CQI includes at least one of a first interference and a second interference, wherein the first interference is obtained based on NM unselected CSI-RS and the second interference is obtained based on the IMR.

[0235] In some embodiments, the first configuration information is further used to determine an indication type, the indication type including a first type or a second type; the first type is used for the terminal to determine the interference portion of the CQI based on NM unselected CSI-RS, or based on the IMR and NM unselected CSI-RS; the second type is used for the terminal to determine the interference portion of the CQI based on the IMR; the first report includes the CQI.

[0236] In some embodiments, the indication type includes a CSI type or a codebook type.

[0237] In some embodiments, the first report includes a first portion, which includes the first indication information.

[0238] In some embodiments, the first part further includes at least one of the following: Channel State Information Reference Signal Resource Indicator (CRI); Wideband Channel Quality Information (CQI); Narrowband Channel Quality Information (CQI); Number of Non-zero Wideband Amplitude Coefficients; Indication of Number of Non-zero Coefficients; Indication of Position of Non-zero Coefficients; Mode Indication; Rank Indication.

[0239] In some embodiments, the first report further includes a second part, the second part including at least one of the following: spatial basis vector parameter information; frequency basis vector parameter information; non-zero coefficient position indication information; phase coefficient information; amplitude coefficient information; wideband channel quality information (CQI); and narrowband channel quality information (CQI).

[0240] Figure 6A is a schematic diagram of the structure of the communication device 6100 proposed in an embodiment of this disclosure. The communication device 6100 can be a network device (e.g., access network device, core network device, etc.), a terminal (e.g., user equipment, etc.), a chip, chip system, or processor that supports the network device in implementing any of the above methods, or a chip, chip system, or processor that supports the terminal in implementing any of the above methods. The communication device 6100 can be used to implement the methods described in the above method embodiments; for details, please refer to the descriptions in the above method embodiments.

[0241] As shown in Figure 6A, the communication device 6100 includes one or more processors 6101. The processor 6101 can be a general-purpose processor or a dedicated processor, such as a baseband processor or a central processing unit (CPU). The baseband processor can be used to process communication protocols and communication data, while the CPU can 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 can be used to execute any of the above methods. Optionally, one or more processors 6101 can be used to invoke instructions to cause the communication device 6100 to execute any of the above methods.

[0242] 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., step S2101, but not limited thereto), and the processor 6101 performs at least one of the other steps. In optional embodiments, the transceiver may include a receiver and / or a transmitter, which may be separate or integrated together. Optionally, the terms transceiver, transceiver unit, transceiver, transceiver circuit, interface circuit, interface, etc., can be used interchangeably; the terms transmitter, sending unit, transmitter, sending circuit, etc., can be used interchangeably; and the terms receiver, receiving unit, receiver, receiving circuit, etc., can be used interchangeably.

[0243] In some embodiments, the communication device 6100 further includes one or more memories 6103 for storing data. Optionally, all or part of the memories 6103 may be located outside the communication device 6100. In optional embodiments, the communication device 6100 may include one or more interface circuits 6104. Optionally, the interface circuits 6104 are connected to the memories 6103 and can be used to receive data from the memories 6103 or other devices, and to send data to the memories 6103 or other devices. For example, the interface circuits 6104 can read data stored in the memories 6103 and send that data to the processor 6101.

[0244] The communication device 6100 described in the above embodiments may be a network device or a terminal, but the scope of the communication device 6100 described in this disclosure is not limited thereto, and the structure of the communication device 6100 may not be limited by FIG. 6A. The communication device may be a standalone device or a part of a larger device. For example, the communication device may be: (1) a standalone integrated circuit IC, or chip, or chip system or subsystem; (2) a collection of one or more ICs, optionally, the IC collection may also include storage components for storing data and programs; (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.

[0245] Figure 6B is a schematic diagram of the structure of chip 6200 according to an embodiment of this disclosure. For cases where the communication device 6100 can be a chip or a chip system, please refer to the schematic diagram of chip 6200 shown in Figure 6B, but it is not limited thereto.

[0246] Chip 6200 includes one or more processors 6201. Chip 6200 is used to perform any of the methods described above.

[0247] 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. Optionally, all or part of the memories 6203 may be located outside chip 6200. Optionally, interface circuit 6202 is connected to memory 6203, and interface circuit 6202 can be used to receive data from memory 6203 or other devices, and interface circuit 6202 can be used to send data to memory 6203 or other devices. For example, interface circuit 6202 can read data stored in memory 6203 and send the data to processor 6201.

[0248] In some embodiments, the interface circuit 6202 performs at least one of the communication steps such as sending and / or receiving in the above method (e.g., step S2101, but not limited thereto). For example, the interface circuit 6202 performing the communication steps such as sending and / or receiving in the above method means that the interface circuit 6202 performs data interaction between the processor 6201, the chip 6200, the memory 6203, or the transceiver device. In some embodiments, the processor 6201 performs at least one of the other steps.

[0249] 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.

[0250] This disclosure also proposes a storage medium storing instructions that, when executed on the communication device 6100, cause the communication device 6100 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.

[0251] This disclosure also provides a program product that, when executed by the communication device 6100, causes the communication device 6100 to perform any of the above methods. Optionally, the program product is a computer program product.

[0252] 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, executed by a terminal, includes: The network device receives first configuration information, which is used to configure at least one of Channel Measurement Resource (CMR) and Interference Measurement Resource (IMR), wherein the CMR includes N Channel State Information Reference Signals (CSI-RS), where N is a positive integer. A first report is sent to the network device, the first report being obtained based on at least one of the CMR and the IMR.

2. The method according to claim 1, characterized in that, The first report includes first instruction information; The first indication information is used to instruct the terminal to select M CSI-RS from the N CSI-RS, where M is a positive integer and M is less than or equal to N.

3. The method according to claim 2, characterized in that, The first indication information includes N bits, with each bit corresponding to one CSI-RS.

4. The method according to claim 2 or 3, characterized in that, The first report also includes Channel State Information (CSI), which includes at least one of the following: Precoding matrix indicates PMI; Channel Quality Indicator (CQI); Rank indicator RI.

5. The method according to claim 4, characterized in that, The CSI includes CQI; The interference portion of the CQI includes at least one of a first interference and a second interference, wherein the first interference is obtained based on NM unselected CSI-RS and the second interference is obtained based on the IMR.

6. The method according to any one of claims 1 to 5, characterized in that, The first configuration information is also used to determine the indication type, which includes a first type or a second type; The first type is used for the terminal to determine the interference portion of CQI based on the unselected NM CSI-RS, or based on the IMR and the unselected NM CSI-RS; The second type is used by the terminal to determine the interference portion of the CQI based on the IMR; The first report includes the CQI.

7. The method according to claim 6, characterized in that, The indication type includes CSI type or codebook type.

8. The method according to any one of claims 2 to 7, characterized in that, The first report includes a first part, which includes first instruction information.

9. The method according to claim 8, characterized in that, The first part also includes at least one of the following: Channel state information references signal resource indication (CRI) information; Broadband Channel Quality Information (CQI); Narrowband Channel Quality Information (CQI); Number of non-zero bandwidth amplitude coefficients; Information indicating the number of non-zero coefficients; Non-zero coefficient position indication information; Mode indication; Rank indication information.

10. The method according to claim 8, characterized in that, The first report also includes a second part, which includes at least one of the following: Spatial basis vector parameter information; Frequency domain basis vector parameter information; Non-zero coefficient position indication information; Phase coefficient information; Amplitude coefficient information; Broadband Channel Quality Information (CQI); Narrowband Channel Quality Information (CQI).

11. A communication method, characterized in that, Performed by a network device, the method includes: Send first configuration information to the terminal. The first configuration information is used to configure at least one of the channel measurement resource (CMR) and interference measurement resource (IMR). The CMR includes N channel state information reference signals (CSI-RS), where N is a positive integer. Receive a first report sent by a network device, the first report being obtained based on at least one of the CMR and the IMR.

12. The method according to claim 11, characterized in that, The first report includes first instruction information; The first indication information is used to instruct the terminal to select M CSI-RS from the N CSI-RS, where M is a positive integer and M is less than or equal to N.

13. The method according to claim 12, characterized in that, The first indication information includes N bits, with each bit corresponding to one CSI-RS.

14. The method according to claim 12 or 13, characterized in that, The first report also includes Channel State Information (CSI), which includes at least one of the following: Precoding matrix indicates PMI; Channel Quality Indicator (CQI); Rank indicator RI.

15. The method according to claim 14, characterized in that, The CSI includes CQI; The interference portion of the CQI includes at least one of a first interference and a second interference, wherein the first interference is obtained based on NM unselected CSI-RS and the second interference is obtained based on the IMR.

16. The method according to any one of claims 11 to 15, characterized in that, The first configuration information is also used to determine the indication type, which includes a first type or a second type; The first type is used for the terminal to determine the interference portion of CQI based on the unselected NM CSI-RS, or based on the IMR and the unselected NM CSI-RS; The second type is used by the terminal to determine the interference portion of the CQI based on the IMR; The first report includes the CQI.

17. The method according to claim 16, characterized in that, The indication type includes CSI type or codebook type.

18. The method according to any one of claims 12 to 17, characterized in that, The first report includes a first part, which includes first instruction information.

19. The method according to claim 18, characterized in that, The first part also includes at least one of the following: Channel state information references signal resource indication (CRI) information; Broadband Channel Quality Information (CQI); Narrowband Channel Quality Information (CQI); Number of non-zero bandwidth amplitude coefficients; Information indicating the number of non-zero coefficients; Non-zero coefficient position indication information; Mode indication; Rank indication information.

20. The method according to claim 18, characterized in that, The first report also includes a second part, which includes at least one of the following: Spatial basis vector parameter information; Frequency domain basis vector parameter information; Non-zero coefficient position indication information; Phase coefficient information; Amplitude coefficient information; Broadband Channel Quality Information (CQI); Narrowband Channel Quality Information (CQI).

21. A communication device, characterized in that, The communication device is used to perform the communication method according to any one of claims 1 to 10 or to perform the communication method according to any one of claims 11 to 20.

22. 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 according to any one of claims 1 to 10, and the network device is configured to implement the communication method according to any one of claims 11 to 20.

23. A storage medium storing instructions, characterized in that, When the instructions are executed on the communication device, the communication device performs the communication method as described in any one of claims 1 to 10 or the communication method as described in any one of claims 11 to 20.

24. A program product, characterized in that, It includes at least one of a program and instructions, wherein when the program or instructions are executed by a communication device, they implement the communication method of any one of claims 1 to 10 or perform the communication method of any one of claims 11 to 20.

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