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

Abstract

Embodiments of the present disclosure provide a communication method, a communication device, a communication system, a storage medium, and a program product. The method executed by a network device comprises: sending a first message to a terminal, the first message indicating time domain information of a reference signal resource. Resource-level time domain information indication is implemented, and the resource-level time domain information indication can improve the accuracy of a terminal receiving a reference signal.

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 a communication method, communication device, communication system, storage medium, and program product. Background Technology

[0002] To further improve system efficiency or enhance coverage, increasing the number of antenna ports to expand antenna size is a key technical approach. Currently, it's possible to quadruple the antenna size. For example, supporting 64 or 128 Channel Status Information-Reference Signal (CSI-RS) ports allows for channel measurements on 64 or 128 antenna ports. Considering the trade-off between performance and deployment costs, a hybrid digital and analog beamforming approach may continue to be used in the future. With a larger number of ports, more users will be connected to the network, requiring the network side to provide more channel measurement information from the terminals. This information helps the network side manage multi-user scheduling, thereby improving system performance. Summary of the Invention

[0003] To improve the accuracy of terminal measurement channels, embodiments of this disclosure propose a communication method, communication device, communication system, storage medium, and program product.

[0004] According to a first aspect of the present disclosure, a communication method is provided, performed by a network device, the method comprising: sending a first message to a terminal, the first message indicating time-domain information of a reference signal resource.

[0005] According to a second aspect of the present disclosure, a communication method is provided, executed by a terminal, the method comprising: receiving a first message sent by a network device; determining time-domain information of a reference signal resource based on the first message; and determining a starting time-domain position for receiving a reference signal on the reference signal resource based on the time-domain information of the reference signal resource.

[0006] According to a third aspect of the present disclosure, a communication method is provided, executed by a communication system including a network device and a terminal. The method includes: the network device sending a first message to the terminal, the first message indicating time-domain information of a reference signal resource; and the terminal determining, based on the time-domain information of the reference signal resource, a starting time-domain position for receiving a reference signal on the reference signal resource.

[0007] According to a fourth aspect of the present disclosure, a communication device is provided for performing the communication method described in the first or second aspect.

[0008] According to a fifth aspect of the present disclosure, a communication system is provided, including a network device and a terminal, wherein the network device is configured to implement the communication method described in the first aspect, and the terminal is configured to implement the communication method described in the second aspect.

[0009] According to a sixth aspect of the present disclosure, a storage medium is provided that stores instructions that, when executed on a communication device, cause the communication method described in the first or second aspect to be performed.

[0010] According to a seventh aspect of the present disclosure, a program product is provided, comprising at least one of a program and instructions, wherein when the program and instructions are executed by a communication device, they implement the steps of the communication method described in the first or second aspect.

[0011] By adopting the above technical solution, at least the following beneficial technical effects can be achieved:

[0012] The network device sends a first message to the terminal, which indicates the time-domain information of the reference signal resources. This achieves resource-level time-domain information indication, which can improve the accuracy of the terminal's reception of the reference signal, thereby improving the accuracy of the terminal's channel measurement. 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 an exemplary schematic diagram of the architecture of a communication system provided according to an embodiment of the present disclosure.

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

[0016] Figure 2B is an interactive schematic diagram of a communication method according to an embodiment of the present disclosure.

[0017] Figure 3A is an interactive schematic diagram of a communication method according to an embodiment of the present disclosure.

[0018] Figure 3B is a flowchart illustrating a communication method according to an embodiment of the present disclosure.

[0019] Figure 3C is a flowchart illustrating a communication method according to an embodiment of the present disclosure.

[0020] Figure 4A is a schematic diagram illustrating the offset of a reference signal resource according to an embodiment of the present disclosure.

[0021] Figure 4B is a schematic diagram illustrating the offset of a reference signal resource according to an embodiment of the present disclosure.

[0022] Figure 4C is a schematic diagram illustrating the offset of a reference signal resource according to an embodiment of the present disclosure.

[0023] Figure 5A is a schematic diagram of the structure of a network device according to an embodiment of the present disclosure.

[0024] Figure 5B is a schematic diagram of the structure of a terminal according to an embodiment of the present disclosure.

[0025] Figure 6A is a schematic diagram of the structure of a communication device according to an embodiment of the present disclosure.

[0026] Figure 6B is a schematic diagram of the structure of a chip according to an embodiment of the present disclosure. Detailed Implementation

[0027] This disclosure provides a communication method, communication device, communication system, storage medium, and program product.

[0028] In a first aspect, embodiments of this disclosure propose a communication method executed by a network device, the method comprising: sending a first message to a terminal, the first message indicating time-domain information of a reference signal resource.

[0029] Optionally, the time-domain information includes at least one of the following: time-domain offset, reference time-domain position, and specific starting time-domain position.

[0030] In the above embodiments, the network device sends a first message to the terminal, which indicates the time-domain information of the reference signal resources. This achieves a finer-grained, resource-level time-domain information indication (e.g., time-domain offset indication) compared to the resource set-level time-domain offset indication method, and the resource-level time-domain information indication can improve the accuracy of the terminal's channel measurement.

[0031] In conjunction with some embodiments of the first aspect, in some embodiments, when there are multiple reference signal resources, the multiple reference signal resources are configured into multiple reference signal resource groups, and the number of reference signal resources in one reference signal resource group is one or more.

[0032] In the above embodiments, all reference signal resources can be configured into multiple reference signal resource groups, and the reference signal resources can be managed on a resource group basis, which can reduce the management difficulty.

[0033] In conjunction with some embodiments of the first aspect, in some embodiments, the first message includes one or more first indication messages, wherein the first indication message is used to indicate a first time-domain offset corresponding to one or more reference signal resource groups.

[0034] In the above embodiments, by configuring one or more first indication information to indicate the first time domain offset corresponding to one or more reference signal resource groups, the correspondence between the first indication information and the reference signal resource groups becomes more flexible, which helps to reduce the overhead of indication resources.

[0035] Optionally, when a reference signal resource group includes a reference signal resource, since the reference signal resource group and the reference signal resource are equivalent, the corresponding first indication information realizes the resource-level time-domain offset indication.

[0036] Optionally, when a reference signal resource group includes multiple reference signal resources, since the multiple reference signal resources can be transmitted on the same time domain unit, the corresponding first indication information realizes the time domain offset indication at the resource level.

[0037] In conjunction with some embodiments of the first aspect, in some embodiments, the first message includes a first indication information, which is used to indicate a first time-domain offset corresponding to a first reference signal resource group.

[0038] In the above embodiments, a first indication information can be configured in the first message to indicate the first time-domain offset corresponding to the first reference signal resource group. This helps the terminal determine the starting time-domain position for receiving the first reference signal on multiple reference signal resources, thereby improving the accuracy of the terminal's measurement of the reference signal.

[0039] In conjunction with some embodiments of the first aspect, in some embodiments, the first message includes a first indication information, which is used to indicate the first time-domain offset corresponding to the other reference signal resource groups besides the first reference signal resource group.

[0040] In the above embodiments, a first indication information can be configured in the first message to indicate the first time-domain offset corresponding to the remaining reference signal resource groups other than the first reference signal resource group. Since multiple reference signal resource groups share a single first indication information, this reduces indication overhead.

[0041] In conjunction with some embodiments of the first aspect, in some embodiments, the first message includes a plurality of first indication information, one of which indicates a first time-domain offset corresponding to one or more reference signal resource groups.

[0042] In the above embodiments, multiple first indication information can be configured in the first message. Since a first indication information can indicate the first time domain offset corresponding to one or more reference signal resource groups, the indication overhead can be reduced as much as possible while indicating the first time domain offset of each reference signal resource group.

[0043] In conjunction with some embodiments of the first aspect, in some embodiments, the first time-domain offset is offset with at least one of the following as the starting position:

[0044] The first reference time domain position is determined by the time domain position of the downlink control information (DCI) and the second time domain offset, wherein the second time domain offset is the time domain offset corresponding to a set of reference signal resources associated with the plurality of reference signal resources;

[0045] The second reference time domain position is the time domain position of the last reference signal resource in the previous reference signal resource group.

[0046] In the above embodiments, the first time-domain offset of the reference signal resource group can be offset with reference to either the first reference time-domain position or the second reference time-domain position, thereby improving the flexibility of setting the first time-domain offset.

[0047] In conjunction with some embodiments of the first aspect, in some embodiments, the method further includes: sending a second message to the terminal, the second message indicating that the plurality of reference signal resources include one or more first reference signal resources, a measurement report of the first reference signal resources is requested to be reported, and the measurement report includes a reference signal resource indication (CRI).

[0048] In the above embodiments, by sending a second message to the terminal to indicate that one or more first reference signal resources are included among the multiple reference signal resources, a measurement report of the first reference signal resource is requested to be reported, and the measurement report includes a reference signal resource indication (CRI), this enables the terminal to report a measurement report of the analog beam selected by the network device.

[0049] In conjunction with some embodiments of the first aspect, in some embodiments, the one or more first reference signal resources are reference signal resources at one or more preset positions in a reference signal resource sequence, wherein the reference signal resource sequence is arranged according to at least one of the following information:

[0050] Identification of each reference signal resource;

[0051] Priority of each reference signal resource;

[0052] The sequential relationship between the reference signal resources configured in the network device.

[0053] In the above embodiments, the network device can indicate the number of first reference signal resources to the terminal without indicating which specific reference signals among all reference signal resources are the first reference signal resources, thus reducing the indication overhead.

[0054] In conjunction with some embodiments of the first aspect, in some embodiments, the one or more first reference signal resources are the first one or more reference signal resources in the reference signal resource sequence; or, the one or more first reference signal resources are the last one or more reference signal resources in the reference signal resource sequence.

[0055] In the above embodiments, the network device and the terminal agree that the first reference signal resource is one or more reference signal resources at the very beginning of the reference signal resource sequence, or one or more reference signal resources at the very end of the reference signal resource sequence. Thus, the network device does not need to specify which reference signal resources are the first reference signal resources when indicating the number of first reference signal resources, reducing indication overhead.

[0056] In conjunction with some embodiments of the first aspect, in some embodiments, the first time-domain offset corresponding to the first reference signal resource group is offset from the first reference time-domain position, and the first reference signal resource group is a reference signal resource group including one or more of the first reference signal resources; wherein, the first reference time-domain position is obtained by offsetting the second time-domain offset from the time-domain position where the downlink control information DCI is located, and wherein the second time-domain offset is the time-domain offset corresponding to a reference signal resource set associated with the plurality of reference signal resources.

[0057] In conjunction with some embodiments of the first aspect, in some embodiments, the reference time domain position of the first time domain offset corresponding to the first reference signal resource group is the first reference time domain position, and the first reference signal resource group is a reference signal resource group including one or more of the first reference signal resources; wherein, the first reference time domain position is determined by the time domain position of the downlink control information DCI and the second time domain offset, wherein, the second time domain offset is the time domain offset corresponding to a reference signal resource set associated with the plurality of reference signal resources.

[0058] In the above embodiments, the reference time domain position of the first time domain offset corresponding to the first reference signal resource group is defined as the first reference time domain position.

[0059] Optionally, if a first reference signal resource group includes a first reference signal resource, then a first reference signal resource group is equivalent to a first reference signal resource.

[0060] Optionally, when a first reference signal resource group includes multiple first reference signal resources, the multiple first reference signal resources can transmit reference signals on the same time unit (such as time slot, symbol, etc.).

[0061] In conjunction with some embodiments of the first aspect, in some embodiments, the first reference signal resource has a higher priority for transmitting reference signals than the second reference signal resource, wherein the second reference signal resource is a reference signal resource other than the first reference signal resource among the plurality of reference signal resources;

[0062] The first time-domain offset corresponding to the second reference signal resource group is offset from at least one of the following starting positions:

[0063] The second reference time domain position is the time domain position of the last reference signal resource in the previous reference signal resource group;

[0064] The third reference time domain location is the time domain location of the last reference signal resource in the last first reference signal resource group;

[0065] The second reference signal resource group is a reference signal resource group that includes the second reference signal resource but does not include the first reference signal resource.

[0066] Optionally, the reference time-domain location of the first time-domain offset corresponding to the second reference signal resource group includes at least one of the following:

[0067] The second reference time domain position is the time domain position of the last reference signal resource in the previous reference signal resource group;

[0068] The third reference time domain location is the time domain location of the last reference signal resource in the last first reference signal resource group;

[0069] The second reference signal resource group is a reference signal resource group that includes the second reference signal resource.

[0070] In the above embodiments, the reference time domain position of the first time domain offset corresponding to the second reference signal resource group can be either the second reference time domain position or the third reference time domain position, thereby achieving flexible setting performance of the reference time domain position of the first time domain offset corresponding to the second reference signal resource group.

[0071] Optionally, if a second reference signal resource group includes a second reference signal resource, then a second reference signal resource group is equivalent to a second reference signal resource.

[0072] Optionally, when a second reference signal resource group includes multiple second reference signal resources, the multiple second reference signal resources can transmit reference signals on the same time unit (such as time slot, symbol, etc.).

[0073] In conjunction with some embodiments of the first aspect, in some embodiments, when there are multiple reference signal resources in the reference signal resource group, the reference signal resources in the reference signal resource group are configured to transmit reference signals on multiple time units; the first message includes at least one second indication information, the second indication information being used to indicate a third time domain offset corresponding to a reference signal resource in the reference signal resource group, the reference time domain position corresponding to the third time domain offset being the starting time domain position of the reference signal resource group.

[0074] In the above embodiments, when the reference signal resources in the reference signal resource group are configured to transmit reference signals on multiple time units, the second indication information can further indicate the offset of the reference signal resources relative to the starting time domain position of the reference signal resource group, thereby realizing resource-level offset indication when the reference signal resources in the reference signal resource group are configured to transmit reference signals on multiple time units.

[0075] In the above embodiments, when the reference signal resources in the reference signal resource group are configured to transmit reference signals on multiple time units, the first indication information and the second indication information constitute a two-level indication, and the first indication information and the second indication information together realize the resource-level offset indication.

[0076] In conjunction with some embodiments of the first aspect, in some embodiments, the time domain offset refers to the number of time units offset in the effective time unit, and the time domain offset includes at least one of a first time domain offset, a second time domain offset, and a third time domain offset.

[0077] In the above embodiments, setting the time domain offset to the number of time units offset in the effective time unit can avoid collisions between the reference signal resources and other uplink and downlink information.

[0078] Secondly, embodiments of this disclosure propose a communication method executed by a terminal, the method comprising: receiving a first message sent by a network device; determining time-domain information of a reference signal resource based on the first message; and determining a starting time-domain position for receiving a reference signal on the reference signal resource based on the time-domain information of the reference signal resource.

[0079] In the above embodiments, the terminal can determine the time-domain information of each reference signal resource based on the first information. The time-domain information includes at least one of time-domain offset, reference time-domain position, and specific starting time-domain position. Based on the time-domain information, the terminal can determine the starting time-domain position of the reference signal on the received reference signal resource, achieving accurate reception of the reference signal. This reduces terminal power consumption, improves energy efficiency, and enhances the accuracy of the terminal's channel measurement.

[0080] In conjunction with some embodiments of the second aspect, in some embodiments, the number of reference signal resources is multiple, the multiple reference signal resources correspond to multiple reference signal resource groups, and the number of reference signal resources in a reference signal resource group is one or more.

[0081] In conjunction with some embodiments of the second aspect, in some embodiments, the first message includes a first indication information; and a first time-domain offset corresponding to the first reference signal resource group is determined based on the first indication information.

[0082] In conjunction with some embodiments of the second aspect, in some embodiments, the first message includes a first indication information; and the first time-domain offset corresponding to the remaining reference signal resource groups other than the first reference signal resource group is determined based on the first indication information.

[0083] In conjunction with some embodiments of the second aspect, in some embodiments, the first message includes a plurality of first indication information; and a first time-domain offset corresponding to a plurality of reference signal resource groups is determined based on the plurality of first indication information.

[0084] In conjunction with some embodiments of the second aspect, in some embodiments, the starting time domain position of at least one reference signal resource group is determined based on at least one first time domain offset and a reference time domain position, wherein the reference time domain position includes at least one of the following:

[0085] The first reference time domain position is determined by the time domain position of the downlink control information (DCI) and the second time domain offset. The second time domain offset is the time domain offset corresponding to a set of reference signal resources associated with the plurality of reference signal resources. The second time domain offset is indicated to the terminal by the network device.

[0086] The second reference time domain position is the time domain position of the last reference signal resource in the previous reference signal resource group.

[0087] In conjunction with some embodiments of the second aspect, in some embodiments, the first message includes a first indication information, and determining the time domain information of the reference signal resource according to the first message includes: determining a first time domain offset corresponding to the first reference signal resource group according to the first indication information.

[0088] In conjunction with some embodiments of the second aspect, in some embodiments, the first message includes a first indication information, and determining the time domain information of the reference signal resource according to the first message includes: determining the first time domain offset corresponding to the remaining reference signal resource groups other than the first reference signal resource group according to the first indication information.

[0089] In conjunction with some embodiments of the second aspect, in some embodiments, the first message includes a plurality of first indication information, and the step of determining the time domain information of the reference signal resource according to the first message includes: determining a first time domain offset corresponding to a plurality of reference signal resource groups according to the plurality of first indication information.

[0090] In conjunction with some embodiments of the second aspect, in some embodiments, the first time-domain offset is offset with at least one of the following as the starting position:

[0091] The first reference time domain position is determined by the time domain position of the downlink control information (DCI) and the second time domain offset. The second time domain offset is the time domain offset corresponding to a set of reference signal resources associated with the plurality of reference signal resources. The second time domain offset is indicated to the terminal by the network device.

[0092] The second reference time domain position is the time domain position of the last reference signal resource in the previous reference signal resource group.

[0093] In conjunction with some embodiments of the second aspect, in some embodiments, the method further includes: receiving a second message sent by the network device, the second message indicating that the plurality of reference signal resources include one or more first reference signal resources, a measurement report of the first reference signal resources is requested to be reported, and the measurement report includes a reference signal resource indication (CRI).

[0094] In conjunction with some embodiments of the second aspect, in some embodiments, the method further includes: determining reference signal resources at one or more preset positions in a reference signal resource sequence as the first reference signal resource, wherein the reference signal resource sequence is arranged according to at least one of the following information:

[0095] Identification of each reference signal resource;

[0096] Priority of each reference signal resource;

[0097] The sequential relationship between the reference signal resources configured in the network device.

[0098] In conjunction with some embodiments of the second aspect, in some embodiments, determining one or more reference signal resources at preset positions in the reference signal resource sequence as the first reference signal resource includes: determining one or more reference signal resources at the very beginning of the reference signal resource sequence as the first reference signal resource; or, determining one or more reference signal resources at the very end of the reference signal resource sequence as the first reference signal resource.

[0099] In conjunction with some embodiments of the second aspect, in some embodiments, the first time-domain offset corresponding to the first reference signal resource group is offset from the first reference time-domain position, and the first reference signal resource group is a reference signal resource group including one or more of the first reference signal resources; wherein, the first reference time-domain position is determined by offsetting the second time-domain offset from the time-domain position where the downlink control information (DCI) is located, wherein the second time-domain offset is the time-domain offset corresponding to a reference signal resource set associated with the plurality of reference signal resources, and the second time-domain offset is indicated to the terminal by the network device.

[0100] In conjunction with some embodiments of the second aspect, in some embodiments, the first reference signal resource transmission reference signal has a higher priority than the second reference signal resource, wherein the second reference signal resource is a reference signal resource other than the first reference signal resource among the plurality of reference signal resources; the first time-domain offset corresponding to the second reference signal resource group is offset with at least one of the following as the starting position:

[0101] The second reference time domain position is the time domain position of the last reference signal resource in the previous reference signal resource group;

[0102] The third reference time domain location is the time domain location of the last reference signal resource in the last first reference signal resource group;

[0103] The second reference signal resource group is a reference signal resource group that includes the second reference signal resource.

[0104] In conjunction with some embodiments of the second aspect, in some embodiments, when there are multiple reference signal resources in the reference signal resource group, the reference signal resources in the reference signal resource group are configured to transmit reference signals on multiple time units; the first message includes at least one second indication information, a third time domain offset corresponding to a reference signal resource in the reference signal resource group is determined according to a second indication information, and the time domain position of the reference signal is obtained by offsetting the third offset at the starting time domain position of the reference signal group.

[0105] In conjunction with some embodiments of the second aspect, in some embodiments, when there are multiple reference signal resources in the reference signal resource group, the reference signal resources in the reference signal resource group are configured to transmit reference signals on multiple time units; the first message includes at least one second indication information, and the step of determining the time domain information of the reference signal resource according to the first message further includes: determining a third time domain offset corresponding to a reference signal resource in the reference signal resource group according to a second indication information, wherein the reference time domain position corresponding to the third time domain offset is the starting time domain position of the reference signal resource group.

[0106] In conjunction with some embodiments of the second aspect, in some embodiments, the time domain offset refers to the number of time units offset in the effective time unit, and the time domain offset includes at least one of a first time domain offset, a second time domain offset, and a third time domain offset.

[0107] Thirdly, embodiments of this disclosure propose a communication method executed by a communication system, the communication system including a network device and a terminal, the method including: the network device sending a first message to the terminal, the first message indicating time-domain information of a reference signal resource; the terminal determining, based on the time-domain information of the reference signal resource, the starting time-domain position for receiving a reference signal on the reference signal resource.

[0108] Fourthly, embodiments of this disclosure provide a communication device, which includes at least one of a transceiver module and a processing module; wherein the communication device is used to execute an optional implementation of the first aspect or the second aspect. Optionally, the communication device is a terminal. Optionally, the communication device is a network device.

[0109] Fifthly, embodiments of this disclosure provide a communication device, which includes one or more processors; wherein the communication device is used to execute an optional implementation of the first or second aspect. Optionally, the communication device is a terminal. Optionally, the communication device is a network device.

[0110] In a sixth aspect, embodiments of this disclosure provide a communication system comprising: a network device and a terminal; wherein the network device is configured to perform the method described in the optional implementation of the first aspect, and the terminal is configured to perform the method described in the optional implementation of the second aspect.

[0111] In a seventh aspect, embodiments of this disclosure provide a storage medium storing instructions that, when executed on a communication device, cause the communication device to perform the method described in the optional implementations of the first and second aspects.

[0112] Eighthly, embodiments of this disclosure provide a program product, including at least one of a program and instructions, which, when executed by a communication device, causes the communication device to perform the method as described in the optional implementations of the first and second aspects.

[0113] On the ninth page, embodiments of this disclosure provide a computer program that, when run on a computer, causes the computer to perform the methods described in the optional implementations of the first and second aspects.

[0114] In a tenth 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 according to optional implementations of the first and second aspects above.

[0115] It is understood that the aforementioned communication devices, communication systems, storage media, program products, network devices, terminals, computer programs, chips or chip systems, etc., are all used to execute the communication 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.

[0116] This disclosure provides a communication method, communication device, communication system, storage medium, and program product. In some embodiments, the terms "communication method" and "information processing method," "aperiodic CSI-RS resource allocation method for CRI-based CSI reporting," etc., can be used interchangeably.

[0117] 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.

[0118] 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.

[0119] 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.

[0120] In the embodiments disclosed herein, "multiple" refers to two or more.

[0121] 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.

[0122] 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.

[0123] 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.

[0124] 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.

[0125] In some embodiments, “including A,” “containing A,” “for indicating A,” and “carrying A” can be interpreted as directly carrying A or indirectly indicating A.

[0126] In some embodiments, terms such as "time / frequency" and "time-frequency domain" refer to the time domain and / or frequency domain.

[0127] 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.

[0128] 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”.

[0129] 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.

[0130] In some embodiments, "network" can be interpreted as devices included in a network (e.g., access network devices, core network devices, etc.).

[0131] 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.

[0132] 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.

[0133] 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.

[0134] 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.

[0135] In some embodiments, the acquisition of data, information, etc., may comply with the laws and regulations of the country where the location is situated.

[0136] In some embodiments, data, information, etc., may be obtained with the user's consent.

[0137] 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.

[0138] Figure 1 is a schematic diagram of the architecture of a communication system according to an embodiment of the present disclosure. As shown in Figure 1, the communication system 100 may include a terminal 101 and a network device 102.

[0139] 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.

[0140] In some embodiments, network device 102 may include at least one of access network device and core network device.

[0141] 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.

[0142] In some embodiments, the access network device is a base station. Optionally, the base station may be, for example, a macro base station, a micro base station (also called a small station), a relay station, an access point, a 5 / 6G base station or a future base station, a satellite, a Transmitting and Receiving Point (TRP), a Transmitting Point (TP), a mobile switching center, or other equipment that performs base station functions in a communication system, etc., and this disclosure does not specifically limit this type of device. For ease of description, in all embodiments of this disclosure, the apparatus that provides wireless communication functions for terminal devices is collectively referred to as a network device or a base station.

[0143] In some embodiments, the access network device is a core network device. Optionally, the core network device can be a single device, including a first network element, a second network element, etc., or it can be multiple devices or a group of devices, each including all or part of the first network element, the second network element, etc. The network element can be virtual or physical. The core network includes, for example, at least one of the Evolved Packet Core (EPC), 5G / 6G Core Network (5GCN / 6GCN), and Next Generation Core (NGC).

[0144] 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.

[0145] 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.

[0146] 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.

[0147] 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.

[0148] 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).

[0149] In some embodiments, while increasing the number of ports can expand the antenna size, a larger number of ports also means a greater number of users accessing the network. Therefore, the network needs the terminals to provide more information, such as at least one of CRI (CSI-RS Resource Indication), RI (Rank Indication), CQI (Channel Quality Indication), and PMI (Precoding Matrix Indication), to support network-side scheduling of multiple users and improve system performance. Each RI, CQI, and PMI is obtained based on independent CSI-RS resource calculations, and the corresponding CSI-RS resource is indicated by the CRI.

[0150] In some embodiments, for CSI feedback reporting based on multiple CRIs, the number of configurable CSI-RS resources Ks and the number of ports supported by each resource are currently supported, as shown in Table 1 below.

[0151] Table 1

[0152] In some embodiments, to support the analog beam selection of the network device (NW), the system can also support NW-side configuration of M R The CRI corresponding to each CSI-RS resource must be reported (i.e., M). R The analog beam corresponding to each CSI-RS resource is the beam selected by the NW, so the terminal needs to report the M... R (CRI corresponding to each CSI-RS resource). Wherein, the value of MR and the selected M of NW... R Each resource is configured by the NW via Radio Resource Control (RRC).

[0153] It's worth explaining here that one method of transmitting beamformed CSI-RS is as follows: In a single CSI process, the base station transmits Ks beamformed CSI-RS on Ks CSI-RS resources (or Ks portions of CSI-RS resources). Each CSI-RS resource includes at least one CSI-RS port, and each CSI-RS resource corresponds to one beam. The terminal detects the optimal CSI-RS resource among the Ks CSI-RS resources (and / or the M selected by the base station). R (One CSI-RS resource) and feeds it back to the base station.

[0154] In some embodiments, the aforementioned Ks CSI-RS resources are associated with a CSI-RS resource set. When these Ks resources are aperiodic CSI-RS resources, this disclosure proposes a configuration method for aperiodic CSI-RS resources. By supporting resource-level time slot offset indication based on RRC configuration, the terminal can easily determine the time slot where each resource in the aperiodic (AP) CSI-RS resource set is located.

[0155] In some embodiments, for CRI-based CSI enhancements with up to 128 CSI-RS ports, regarding the configuration of aperiodic CSI-RS resources, the aperiodic CSI-RS resource set supports resource-level slot offsets configured by RRC (relative to the source set-level slot offset, using the same design as the Type-I / II codebook refinement for 48, 64, and 128 ports). Based on this, FFS (For Further Study): the number of bits of the resource-level slot offset (relative to the resource set-level slot offset) for the Ks resource, including the slot offset value. FFS: Additionally, whether an available slot offset is configured for each CSI-RS in the aperiodic CSI-RS resource set. Here, "available slot offset" can be understood as similar to the offset enhancement function triggered by the Sounding Reference Signal (SRS).

[0156] In some embodiments, the NW can indicate the offset position of each AP CSI-RS. When the NW is configured with Ks AP CSI-RS resources, how the NW can indicate the offset position of each AP CSI-RS with less signaling overhead is a problem to be solved. If a certain number of bits is used to indicate the offset value of each resource, then how to determine the number of bits indicating the offset value is a problem to be solved.

[0157] In some embodiments, when configuring Ks aperiodic CSI-RS resources, an additional number of bits can be introduced for each resource to indicate the offset value of the aperiodic resource. For M... R The configuration of each CSI-RS resource can introduce additional indication information to indicate the M selected on the NW side. R Each CSI-RS resource includes an additional indication information: a bitmap of size Ks bits.

[0158] In some embodiments, this disclosure provides a communication method, communication device, communication system, storage medium, and program product that determines the offset / value of each resource relative to the reference time slot by means of the AP CSI-RS resource index, configuration of additional indication information, or multiple resource groups obtained by dividing Ks configured resources.

[0159] Figure 2A is an interactive schematic diagram of a communication method according to an embodiment of the present disclosure. As shown in Figure 2A, the embodiment of the present disclosure relates to a communication method executed by a communication system 100, the method including:

[0160] In step S2101, network device 102 sends a first message to terminal 101.

[0161] In some embodiments, the terminal receives a first message. For example, the terminal receives a first message sent by a network device.

[0162] In some embodiments, the first message indicates time-domain information of the reference signal resource. Optionally, the time-domain information includes at least one of time-domain offset, reference time-domain position, and specific starting time-domain position.

[0163] In some embodiments, the first message indicates the time-domain offset of one or more or each reference signal resource. Here, "one reference signal resource" and "a single reference signal resource" can be interchanged, "multiple reference signal resources" and "multiple single reference signal resources" can be interchanged, and "each reference signal resource" and "each single reference signal resource" can be interchanged.

[0164] In some embodiments, the name of the first message is not limited, and the name of the first message may be, for example, resource-level time domain offset indication, time slot offset relative to resource set level, resource configuration, time slot offset indication, offset position information, etc.

[0165] In some embodiments, the first message is an RRC signaling.

[0166] It should be explained that the reference signal (RS) is a known signal used in communication technology for channel estimation or channel sounding. It is transmitted / provided to the receiver by the transmitter.

[0167] In some embodiments, the reference signal resource can be a non-periodic reference signal resource. Reference signal resources include, but are not limited to, CSI-RS resources, SRS resources, and Positioning Reference Signal (PRS) resources.

[0168] In some embodiments, the reference signal resource is a CSI-RS resource, wherein a CSI-RS resource includes at least one CSI-RS port and a CSI-RS resource corresponds to a beam.

[0169] In some embodiments, the number of reference signal resources is multiple (e.g., K). S One, K SIn the case of (where K is an integer greater than 1), multiple reference signal resources (e.g., K) S (One) can be configured into multiple reference signal resource groups.

[0170] For example, when there are multiple reference signal resources, they can be sorted and then grouped according to their identifiers (e.g., indexes or IDs) to obtain multiple reference signal resource groups. It should be noted that the order in which the identifiers of the reference signal resources are arranged is not limited to the order in which the reference signals are transmitted on those resources. Optionally, after obtaining multiple reference signal resource groups, they can be sorted according to the order in which the reference signals are transmitted.

[0171] For example, when there are multiple reference signal resources, the reference signal resources can be sorted and grouped according to the order in which the reference signals are transmitted on each reference signal resource to obtain multiple reference signal resource groups.

[0172] The order in which reference signals are transmitted on each reference signal resource is determined by the network device, and this embodiment does not limit this.

[0173] Optionally, the number of reference signal resources in a reference signal resource group can be one. In this case, a reference signal resource group is equivalent to a reference signal resource, that is, "reference signal resource group" and "reference signal resource" can be interchanged.

[0174] Optionally, there can be multiple reference signal resources in a reference signal resource group. It should be explained that when there are multiple reference signal resources in a reference signal resource group, each reference signal resource in a group can be configured to transmit reference signals on one or more time units (e.g., time slots). For example, each reference signal resource in a group can be configured to transmit reference signals on one or two adjacent time slots.

[0175] For example, when the number of reference signal resources is multiple (e.g., K) S In the case of ( ), multiple reference signal resources (e.g., K ) S A single reference signal resource can be configured into multiple reference signal resource groups (e.g., G1 groups). Within all reference signal resource groups (e.g., G1 groups), some groups may contain only one reference signal resource, while others may contain multiple reference signal resources. Alternatively, all reference signal resource groups (e.g., G1 groups) may contain only one reference signal resource. Or, all reference signal resource groups (e.g., G1 groups) may contain multiple reference signal resources.

[0176] In some embodiments, the first message includes one or more first indication messages, wherein one first indication message is used to indicate a first time-domain offset corresponding to one or more reference signal resource groups.

[0177] For example, a first indication message indicates a first time-domain offset corresponding to a reference signal resource group.

[0178] For example, a first indication message indicates a first time-domain offset corresponding to multiple reference signal resource groups.

[0179] In some embodiments, the length of the first indication information can be one bit or more bits. For example, the length of the first indication information is Y bits. Where Y can be determined based on the configured number of resources (e.g., K). S Determined by a resource or a predefined value. Optionally... For example, the length of the first indication information is Z bits. Optionally, G1 is the number of reference signal resource groups.

[0180] In some embodiments, the reference time-domain location includes at least one of the following:

[0181] The first reference time domain position is determined by the time domain position of the downlink control information (DCI) and the second time domain offset. The second time domain offset is the time domain offset corresponding to a set of reference signal resources associated with multiple reference signal resources.

[0182] The second reference time domain position is the time domain position of the last reference signal resource in the previous reference signal resource group.

[0183] It should be explained that when a network device indicates time-domain information of multiple reference signal resources to a terminal, in related technologies, the network device associates these multiple reference signal resources with a reference signal resource set and configures a second time-domain offset for that reference signal resource set. The starting time-domain position of the reference signal resource set can be obtained by offsetting the second time-domain offset from the time-domain position where the DCI is located. This starting time-domain position of the reference signal resource set is referred to as the first reference time-domain position in this embodiment. Multiple reference signal resources in a reference signal resource set may belong to one reference signal resource group or different reference signal resource groups.

[0184] In this embodiment of the disclosure, when the network device indicates the time-domain information of multiple reference signal resources to the terminal, the network device configures the multiple reference signal resources into one or more reference signal resource groups. Preferably, the network device configures the multiple reference signal resources into at least two reference signal resource groups, wherein a reference signal resource group may include one or more reference signal resources. These reference signal groups may be offset from a first reference time-domain position as the starting position.

[0185] The reference time domain position indicates which time domain position the first time domain offset starts from.

[0186] For example, the time domain position obtained after offsetting by the first reference time domain position is the starting time domain position of the reference signal resource group.

[0187] For example, the time domain position obtained after offsetting by the second reference time domain position is the starting time domain position of the reference signal resource group.

[0188] In some embodiments, the first time-domain offset is offset from a first reference time-domain position and / or a second reference time-domain position.

[0189] It should be explained that the activation signaling for the reference signal resource can be a DCI (Digital Cipher Interface). The first reference time domain position can be determined based on the time domain location of the DCI and a second time domain offset. For example, the time domain position after offsetting the second time domain offset from the time domain location of the DCI can be used as the first reference time domain position.

[0190] In some embodiments, the reference time-domain position of each reference signal resource group can be a first reference time-domain position. Each reference signal resource group can be offset from the first reference time-domain position, and the starting time-domain position of each reference signal resource group is obtained after offsetting by the corresponding first time-domain offset. The first time-domain offsets corresponding to each reference signal resource group can be the same or different.

[0191] In some embodiments, since the reference signal resource groups may have a sequential relationship, such as a sequential relationship of transmitting reference signals, the subsequent reference signal resource group can use the time domain position (i.e., the second reference time domain position) of the last reference signal resource in the previous reference signal resource group as its reference time domain position based on the sequential relationship between the reference signal resource groups.

[0192] It should be explained here that the time domain offset refers to the number of time units offset relative to the reference time domain position within the valid time unit; that is, invalid time units are not included in the time domain offset count. The time domain offset includes at least one of a first time domain offset, a second time domain offset, and a third time domain offset. The third time domain offset is described in later embodiments and will not be explained here.

[0193] In some embodiments, the effective time unit may refer to the downlink time unit, such as the downlink time slot.

[0194] In some embodiments, the first message includes a first indication information, which indicates a first time-domain offset corresponding to a first reference signal resource group.

[0195] The first reference signal resource group can refer to the reference signal resource group that first transmits the reference signal.

[0196] Optionally, the reference time domain position of the first time domain offset of the first reference signal resource group is the first reference time domain position.

[0197] Optionally, for the reference signal resource groups other than the first reference signal resource group, the network device may not indicate the time domain offset to the terminal. For example, the network device and the terminal may agree or default (or the network device may indicate to the terminal) that, in the reference signal resource groups other than the first reference signal resource group, the starting time domain position of the later reference signal resource group and the ending time domain position of the earlier reference signal resource group are located within the same first time unit (e.g., time slot), that is, the starting time domain position of the later reference signal resource group is offset by 0 first time units relative to the ending time domain position of the earlier reference signal resource group. For example, in the reference signal resource groups other than the first reference signal resource group, each reference signal resource group takes the next time domain position after the time domain position of the last reference signal resource in the earlier reference signal resource group as its starting time domain position. That is, the time domain position corresponding to the later reference signal resource group is after the time domain position corresponding to the previous reference signal resource group, and the reference signal on the later reference signal resource group is transmitted after the reference signal of the previous reference signal resource group is transmitted. The arrangement order of the reference signal resource groups, as described above, is obtained according to the order of transmission of the reference signals. For example, in all reference signal resource groups except the first one, the starting time-domain position of each reference signal resource group is offset by 0 first time units relative to the time-domain position of the last reference signal resource in the preceding reference signal resource group. Assuming the granularity of the offset is a slot (i.e., the first time unit is a slot), and assuming there are reference signal resource groups A and B, the slot where the last reference signal resource in reference signal resource group A is located is slot #3, and the time-domain position obtained by offsetting 0 slots relative to slot #3 is slot #3. Reference signal resource group B can start with slot #3. That is, the ending time-domain position of reference signal resource group A and the starting time-domain position of reference signal resource group B are both located in slot #3. In some embodiments, assuming the time-domain position of the last reference signal resource in reference signal resource group A is specifically the first symbol in slot #3, reference signal resource group B can start with any symbol in slot #3 excluding the first symbol, such as the second symbol (or the third symbol, the fourth symbol, etc.). That is, the end time domain position of reference signal resource group A and the start time domain position of reference signal resource group B can be located in the same time slot and may be continuous or discontinuous in terms of symbols. The number of symbols between reference signal resource group A and reference signal resource group B can be agreed upon or defaulted by the network device and the terminal, or it can be agreed upon by the protocol or indicated by the network device. This disclosure does not limit this.

[0198] In some embodiments, the first message includes a first indication information, which indicates the first time-domain offset corresponding to the remaining reference signal resource groups other than the first reference signal resource group.

[0199] The number of reference signal resource groups other than the first reference signal resource group can be one or more. Since the first time-domain offsets corresponding to the reference signal resource groups other than the first reference signal resource group can be the same, they can be indicated by a first indication information.

[0200] Optionally, the network device may not indicate the time-domain offset configured for the first reference signal resource group to the terminal. The network device and the terminal may agree by default (or the network device may indicate this to the terminal) that the starting time-domain position of the first reference signal resource group is not offset relative to the first reference time-domain position. For example, the starting time-domain position of the first reference signal resource group is the same as the first reference time-domain position.

[0201] Optionally, the reference time domain position of the reference signal resource groups other than the first reference signal resource group is the time domain position of the last reference signal resource in the previous reference signal resource group (i.e., the second reference time domain position).

[0202] In some embodiments, the first message includes a plurality of first indication information, wherein one first indication information is used to indicate a first time domain offset corresponding to one or more reference signal resource groups.

[0203] In the first example, the first message includes multiple first indication messages. Each first indication message indicates a first time-domain offset corresponding to a reference signal resource group. The first time-domain offsets corresponding to each reference signal resource group can be the same or different. Optionally, the reference time-domain position of the first time-domain offset of each reference signal resource group is either a first reference time-domain position or a second reference time-domain position.

[0204] In the second example, the first message includes multiple first indication messages. One first indication message indicates a first time-domain offset corresponding to multiple reference signal resource groups. For example, some reference signal resource groups (e.g., reference signal resource groups A, B, C, D, E, F) may have the same first time-domain offset, and these reference signal resource groups (e.g., reference signal resource groups B, C, D) may share a single first indication message.

[0205] It should be noted that among these reference signal resource groups (e.g., reference signal resource groups B, C, and D) that share a common first indication information, the reference time domain position corresponding to the later reference signal resource group is the time domain position (i.e., the second reference time domain position) of the last reference signal resource in the preceding reference signal resource group. For example, the reference time domain position corresponding to the later reference signal resource group C is the time domain position of the last reference signal resource in the preceding reference signal resource group B. For example, the reference time domain position corresponding to the later reference signal resource group D is the time domain position of the last reference signal resource in the preceding reference signal resource group C. The reference time domain position corresponding to reference signal resource group B can be either the first reference time domain position or the second reference time domain position (i.e., the time domain position of the last reference signal resource in reference signal resource group A).

[0206] In the third example, the first message includes multiple first indication messages. Each of the first indication messages in one part indicates a first time-domain offset corresponding to a reference signal resource group. Each of the first indication messages in another part indicates first time-domain offsets corresponding to multiple reference signal resource groups. That is, the third example is a combination of the first and second examples. Further detailed examples are omitted here.

[0207] In some embodiments, when there are multiple reference signal resources in a reference signal resource group, the reference signal resources in the reference signal resource group can be configured to transmit reference signals on multiple first time units (e.g., time slots). In this case, the first message may further include at least one second indication information, which indicates a third time-domain offset corresponding to a reference signal resource within the reference signal resource group, and the reference time-domain position corresponding to the third time-domain offset is the starting time-domain position of the reference signal resource group. For example, the terminal obtains the starting time-domain position of the reference signal resource by offsetting the third time-domain offset from the starting time-domain position of the reference signal resource group.

[0208] It should be noted that multiple reference signal resources in a reference signal resource group can transmit reference signals on the same first time unit. For example, a reference signal resource group may include three reference signal resources, of which two reference signal resources can transmit reference signals on the same first time unit (such as a slot).

[0209] For example, reference signal resources within a reference signal resource group are configured to transmit reference signals on two adjacent first time units (e.g., time slots). A second indication information can be configured for each reference signal resource within the reference signal resource group. Each second indication information indicates the further offset of each reference signal resource relative to the starting time domain position of the reference signal resource group. Optionally, the length of a second indication information can be 1 bit, with a value of 0 or 1. 0 indicates that no further offset will be made relative to the starting time domain position of the reference signal resource group, and a second indication information with a value of 0 can be omitted. 1 indicates an offset of one more first time unit relative to the starting time domain position of the reference signal resource group.

[0210] In the embodiments of this disclosure, when a reference signal resource group includes one reference signal resource, the corresponding first indication information implements resource-level offset indication. The meaning of resource-level offset indication can be understood as the indication granularity of the first indication information being at the resource level. The terminal can determine the offset of one or more reference signal resources based on one or more pieces of first indication information. Compared to the resource set-level offset indication method in related technologies, this resource-level offset indication method of the embodiments of this disclosure has a smaller and more precise indication granularity. When a reference signal resource group includes multiple reference signal resources, and each reference signal resource in the reference signal resource group is configured to transmit reference signals on a first time unit, the first indication information implements resource-level offset indication. When a reference signal resource group includes multiple reference signal resources, and each reference signal resource in the reference signal resource group is configured to transmit reference signals on multiple first time units, the first indication information and the second indication information together implement resource-level offset indication. Therefore, in the embodiments of this disclosure, the network device can implement resource-level offset indication by sending a first message to the terminal, so that the terminal can determine the accurate time-domain offset corresponding to each reference signal resource, and thus accurately determine the starting time-domain position corresponding to each reference signal resource.

[0211] In some embodiments, the network device may also indicate a second time-domain offset to the terminal, or the second time-domain offset may be a default value or be agreed upon by the protocol.

[0212] In step S2102, terminal 101 determines the time domain information of the reference signal resource based on the first message.

[0213] In step S2103, terminal 101 determines the starting time domain position corresponding to the reference signal resource based on the time domain information of the reference signal resource.

[0214] In some embodiments, if the first message includes a first indication information, and the first indication information is used to indicate a first time-domain offset corresponding to a first reference signal resource group, then the terminal can determine the first time-domain offset corresponding to the first reference signal resource group based on the first indication information. Optionally, the implementation of determining the time-domain information of the reference signal resource based on the first message includes: determining the first time-domain offset corresponding to the first reference signal resource group based on the first indication information.

[0215] Since the first reference signal resource group can refer to the reference signal resource group that transmits the reference signal first, and the reference time domain position of the first time domain offset of the first reference signal resource group can be the first reference time domain position, the terminal can determine the starting time domain position corresponding to the first reference signal resource group based on the first time domain offset and the first reference time domain position. Optionally, the implementation method for the terminal to determine the starting time domain position corresponding to the reference signal resource based on the time domain information of the reference signal resource, such as the time domain offset and the reference time domain position, includes: the terminal can determine the starting time domain position corresponding to the first reference signal resource group based on the first time domain offset and the first reference time domain position. The starting time domain position corresponding to the first reference signal resource group is the starting time domain position for receiving the reference signal transmitted by the first reference signal resource group.

[0216] Optionally, the network device and the terminal may agree or default (or the network device may instruct the terminal) that, in all reference signal resource groups except the first reference signal resource group, the starting time domain position of the next reference signal resource group and the ending time domain position of the previous reference signal resource group are located within the same first time unit. That is, the starting time domain position of the next reference signal resource group is offset by 0 first time units relative to the ending time domain position of the previous reference signal resource group. For example, in all reference signal resource groups except the first one, each reference signal resource group uses the time domain position following the time domain position of the last reference signal resource in the previous reference signal resource group as its starting time domain position. That is, the time domain position corresponding to the next reference signal resource group is after the time domain position corresponding to the previous reference signal resource group, and the reference signal on the next reference signal resource group is transmitted after the reference signal of the previous reference signal resource group is transmitted. Thus, after determining the starting time domain position corresponding to the first reference signal resource group, the starting time domain positions of the remaining reference signal resource groups can be determined. That is, the ending time domain position of the previous reference signal resource group is used as the starting time domain position of the next reference signal resource group. For example, in all reference signal resource groups except the first one, the starting time-domain position of each reference signal resource group is offset by 0 first time units relative to the time-domain position of the last reference signal resource in the preceding reference signal resource group. Assuming the granularity of the offset is a slot (i.e., the first time unit is a slot), and assuming there are reference signal resource groups A and B, the slot where the last reference signal resource in reference signal resource group A is located is slot #3, and the time-domain position obtained by offsetting 0 slots relative to slot #3 is slot #3. Reference signal resource group B can start with slot #3. That is, the ending time-domain position of reference signal resource group A and the starting time-domain position of reference signal resource group B are both located in slot #3. In some embodiments, assuming the time-domain position of the last reference signal resource in reference signal resource group A is specifically the first symbol in slot #3, reference signal resource group B can start with any symbol after the first symbol in slot #3, such as the second symbol (or the third symbol, the fourth symbol, etc.). That is, the end time domain position of reference signal resource group A and the start time domain position of reference signal resource group B can be located in the same time slot and may be continuous or discontinuous in terms of symbols. The number of symbols between reference signal resource group A and reference signal resource group B can be agreed upon or defaulted by network devices and terminals, or it can be agreed upon by the protocol or indicated by the network device. This disclosure does not limit this.

[0217] In some embodiments, if the first message includes a first indication information, which indicates the first time-domain offset corresponding to the reference signal resource groups other than the first reference signal resource group, then the terminal can determine the first time-domain offset corresponding to the reference signal resource groups other than the first reference signal resource group based on the first indication information. Optionally, the implementation of the terminal determining the time-domain information of the reference signal resources based on the first message includes: determining the first time-domain offset corresponding to the reference signal resource groups other than the first reference signal resource group based on the first indication information.

[0218] Optionally, the network device and the terminal may agree or default (or the network device may instruct the terminal) that the reference time domain position of the first time domain offset of the reference signal resource group other than the first reference signal resource group is the time domain position of the last reference signal resource in the previous reference signal resource group (i.e., the second time domain position).

[0219] Optionally, the network device and the terminal may agree or default (or the network device may indicate to the terminal) that the starting time domain position of the first reference signal resource group is not offset relative to the first reference time domain position. For example, the starting time domain position of the first reference signal resource group is the same as the first reference time domain position.

[0220] In this way, the terminal can determine the starting time domain position corresponding to the first reference signal resource group as the first reference time domain position, and the terminal can determine the starting time domain position of each of the other reference signal resource groups based on the first time domain offset and the second time domain reference position corresponding to the other reference signal resource groups.

[0221] In some embodiments, if the first message includes multiple first indication information, and one first indication information is used to indicate a first time-domain offset corresponding to one or more reference signal resource groups, then the implementation method for the terminal to determine the time-domain information of the reference signal resources based on the first message includes: determining the first time-domain offsets corresponding to multiple reference signal resource groups based on the multiple first indication information.

[0222] In the first example, if the first message includes multiple first indication messages, each first indication message indicates a first time-domain offset corresponding to a reference signal resource group. Then, the terminal can determine the first time-domain offset corresponding to a reference signal resource group based on a single first indication message. Optionally, the network device and the terminal can agree or default (or the network device can indicate to the terminal) that the reference time-domain position of the first time-domain offset of each reference signal resource group is a first reference time-domain position or a second reference time-domain position. Thus, the terminal can determine the starting time-domain position corresponding to each reference signal resource group based on the first time-domain offset and reference time-domain position.

[0223] In the second example, if the first message includes multiple first indication messages, each first indication message indicates a first time-domain offset corresponding to multiple reference signal resource groups. Then, the terminal can determine the first time-domain offset corresponding to multiple reference signal resource groups based on a single first indication message. For example, suppose a first indication message indicates K... S The terminal then determines the first time-domain offset of some reference signal resource groups (e.g., reference signal resource groups B, C, and D) within a set of reference signal resource groups (e.g., reference signal resource groups A, B, C, D, E, and F).

[0224] Optionally, the network device and the terminal may agree or default to (or the network device may instruct the terminal) that among these reference signal resource groups (e.g., reference signal resource groups B, C, and D) sharing a first indication information, the reference time domain position corresponding to the later reference signal resource group is the time domain position of the last reference signal resource in the previous reference signal resource group (i.e., the second reference time domain position). For example, the reference time domain position corresponding to the later reference signal resource group C is the time domain position of the last reference signal resource in the previous reference signal resource group B. For example, the reference time domain position corresponding to the later reference signal resource group D is the time domain position of the last reference signal resource in the previous reference signal resource group C. The reference time domain position corresponding to reference signal resource group B can be either the first reference time domain position or the second reference time domain position (i.e., the time domain position of the last reference signal resource in reference signal resource group A).

[0225] In this way, the terminal can determine the first time domain offset corresponding to each reference signal resource group, and determine the starting time domain position corresponding to each reference signal resource group based on the first time domain offset and the reference time domain position.

[0226] The third example combines the first and second examples. If the first message includes multiple first indication messages, each of the first indication messages in a portion indicates a first time-domain offset corresponding to a reference signal resource group. Each of the other portion of the first indication messages indicates first time-domain offsets corresponding to multiple reference signal resource groups. Based on these first indication messages, the terminal can also determine the first time-domain offset corresponding to each reference signal resource group. Furthermore, based on the first time-domain offset corresponding to each reference signal resource group and the reference time-domain position, the terminal can determine the starting time-domain position corresponding to each reference signal resource group.

[0227] In the embodiments described above, when a reference signal resource group includes one reference signal resource, the corresponding first indication information implements resource-level offset indication. When a reference signal resource group includes multiple reference signal resources, and each reference signal resource in the group is configured to transmit a reference signal in a time unit (e.g., a time slot), the first indication information implements resource-level offset indication. In both cases, the starting time-domain position of the reference signal resource group determined by the terminal is the starting time-domain position of each reference signal resource within that group.

[0228] In some embodiments, where there are multiple reference signal resources in a reference signal resource group, and the reference signal resources in the reference signal resource group are configured to transmit reference signals on multiple time units, the implementation method for the terminal to determine the time domain information of the reference signal resources according to the first message further includes: after determining the starting time domain position of the reference signal resource group, the terminal determines a third time domain offset according to the second indication information in the first message, and determines the starting time domain position of each reference signal resource according to the third time domain offset and the starting time domain position of the reference signal resource group. For example, the terminal obtains the starting time domain position of the reference signal resource by offsetting the starting time domain position of the reference signal resource group by the third time domain offset.

[0229] It should be noted that multiple reference signal resources in a reference signal resource group can transmit reference signals on the same first time unit. For example, a reference signal resource group may include three reference signal resources, of which two reference signal resources can transmit reference signals on the same first time unit.

[0230] Optionally, the length of a second indication message can be 1 bit, with a value of 0 or 1. A value of 0 indicates that no further offset will be made relative to the starting time domain position of the reference signal resource group; a second indication message with a value of 0 can be omitted. A value of 1 indicates that the offset will be made by one time unit relative to the starting time domain position of the reference signal resource group. The terminal can determine the starting time domain position of each reference signal resource in the reference signal resource group based on the second indication message and the starting time domain position of the reference signal resource group.

[0231] In the above embodiments of this disclosure, when a reference signal resource group includes multiple reference signal resources and each reference signal resource in the reference signal resource group is configured to transmit reference signals on multiple time units, the first indication information combined with the second indication information realizes the resource-level offset indication.

[0232] In the above embodiments of this disclosure, the terminal can determine the accurate time domain offset corresponding to each reference signal resource based on the first message, and thus accurately determine the starting time domain position corresponding to each reference signal resource.

[0233] In some embodiments, when the terminal determines the starting time domain position corresponding to each reference signal resource, it can start receiving reference signals at the corresponding starting time domain position for each reference signal resource, thereby receiving reference signals more accurately, improving energy efficiency and reducing energy consumption.

[0234] The embodiments of this disclosure implement resource-level time-domain offset indication, and minimize indication overhead by grouping reference signal resources and having multiple reference signal resources (groups) share a single indication information.

[0235] 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.

[0236] In some embodiments, the terms "downlink", "downlink", and "physical downlink" can be used interchangeably.

[0237] In some embodiments, the terms “downlink control information (DCI),” “downlink (DL) assignment,” “DL DCI,” “uplink (UL) grant,” and “UL DCI” can be used interchangeably.

[0238] In some embodiments, the terms "synchronization signal (SS)," "synchronization signal block (SSB)," "reference signal (RS)," "pilot," and "pilot signal" can be used interchangeably.

[0239] 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.”

[0240] In some embodiments, the terms “frame”, “radio frame”, “subframe”, “slot”, “sub-slot”, “mini-slot”, “symbol”, “symbol”, and “transmission time interval (TTI)” can be used interchangeably.

[0241] 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.

[0242] In some embodiments, terms such as “send,” “transmit,” “report,” “distribute,” “transfer,” “bidirectional transmission,” “send and / or receive” can be used interchangeably.

[0243] 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.

[0244] 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), or by a comparison of numerical values ​​(e.g., a comparison with a predetermined value), but is not limited thereto.

[0245] 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, and steps S2102 and S2103 may be implemented as standalone embodiments, but are not limited thereto.

[0246] In some embodiments, the order of any two steps in steps S2101 to S2103 can be interchanged or they can be performed simultaneously.

[0247] In some embodiments, steps S2102 and S2103 are optional, and one or more of these steps may be omitted or substituted in different embodiments.

[0248] In some embodiments, steps S2101 and S2103 are optional, and one or more of these steps may be omitted or substituted in different embodiments.

[0249] In some embodiments, step S2101 is optional and may be omitted or replaced in different embodiments.

[0250] 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.

[0251] Figure 2B is an interactive schematic diagram of a communication method according to an embodiment of the present disclosure. As shown in Figure 2B, the embodiment of the present disclosure relates to a communication method executed by a communication system 100, the method including:

[0252] In step S2201, network device 102 sends a first message to terminal 101.

[0253] In some embodiments, the terminal receives a first message. For example, the terminal receives a first message sent by a network device.

[0254] In some embodiments, the first message indicates time-domain information of the reference signal resource. Optionally, the time-domain information includes at least one of time-domain offset, reference time-domain position, and specific starting time-domain position.

[0255] In some embodiments, the first message indicates the time-domain offset of one or more or each reference signal resource. Here, "one reference signal resource" and "a single reference signal resource" can be interchanged, "multiple reference signal resources" and "multiple single reference signal resources" can be interchanged, and "each reference signal resource" and "each single reference signal resource" can be interchanged.

[0256] In some embodiments, the name of the first message is not limited, and the name of the first message may be, for example, resource-level time domain offset indication, time slot offset relative to resource set level, resource configuration, time slot offset indication, offset position information, etc.

[0257] In some embodiments, the first message is an RRC signaling.

[0258] It should be explained that the reference signal (RS) is a known signal used in communication technology for channel estimation or channel sounding. It is transmitted / provided to the receiver by the transmitter.

[0259] In some embodiments, the reference signal resource can be a non-periodic reference signal resource. Reference signal resources include, but are not limited to, CSI-RS resources, SRS resources, and Positioning Reference Signal (PRS) resources.

[0260] In some embodiments, the reference signal resource is a CSI-RS resource, wherein a CSI-RS resource includes at least one CSI-RS port and a CSI-RS resource corresponds to a beam.

[0261] In some embodiments, the number of reference signal resources is multiple (e.g., K). S One, K S In the case of (where K is an integer greater than 1), multiple reference signal resources (e.g., K) S (One) can be configured into multiple reference signal resource groups.

[0262] For example, when there are multiple reference signal resources, they can be sorted and then grouped according to their identifiers (e.g., indexes or IDs) to obtain multiple reference signal resource groups. It should be noted that the order in which the identifiers of the reference signal resources are arranged is not limited to the order in which the reference signals are transmitted on those resources. Optionally, after obtaining multiple reference signal resource groups, they can be sorted according to the order in which the reference signals are transmitted.

[0263] For example, when there are multiple reference signal resources, the reference signal resources can be sorted and grouped according to the order in which the reference signals are transmitted on each reference signal resource to obtain multiple reference signal resource groups.

[0264] The order in which reference signals are transmitted on each reference signal resource is determined by the network device, and this embodiment does not limit this.

[0265] Optionally, the number of reference signal resources in a reference signal resource group can be one. In this case, a reference signal resource group is equivalent to a reference signal resource, that is, "reference signal resource group" and "reference signal resource" can be interchanged.

[0266] Optionally, there can be multiple reference signal resources in a reference signal resource group. It should be explained that when there are multiple reference signal resources in a reference signal resource group, each reference signal resource in a group can be configured to transmit reference signals on one or more time units (e.g., time slots). For example, each reference signal resource in a group can be configured to transmit reference signals on one or two adjacent time slots.

[0267] For example, when the number of reference signal resources is multiple (e.g., K) S In the case of ( ), multiple reference signal resources (e.g., K ) S A single reference signal resource can be configured into multiple reference signal resource groups (e.g., G1 groups). Within all reference signal resource groups (e.g., G1 groups), some groups may contain only one reference signal resource, while others may contain multiple reference signal resources. Alternatively, all reference signal resource groups (e.g., G1 groups) may contain only one reference signal resource. Or, all reference signal resource groups (e.g., G1 groups) may contain multiple reference signal resources.

[0268] In some embodiments, the first message includes one or more first indication messages, wherein one first indication message is used to indicate a first time-domain offset corresponding to one or more reference signal resource groups.

[0269] For example, a first indication message indicates a first time-domain offset corresponding to a reference signal resource group.

[0270] For example, a first indication message indicates a first time-domain offset corresponding to multiple reference signal resource groups.

[0271] In some embodiments, the length of the first indication information can be one bit or more bits. For example, the length of the first indication information is Y bits. Where Y can be determined based on the configured number of resources (e.g., K). S Determined by a resource or a predefined value. Optionally... For example, the length of the first indication information is Z bits. Optionally, G1 is the number of reference signal resource groups.

[0272] In step S2202, network device 102 sends a second message to terminal 101.

[0273] In some embodiments, the terminal receives a second message. For example, the terminal receives a second message sent by a network device. Optionally, the second message may be RRC signaling.

[0274] In some embodiments, the second message indicates multiple (e.g., a total of K) S The reference signal resources include one or more (e.g., M) R (1) First reference signal resource. Here, the first reference signal resource refers to the corresponding measurement report that is required to be submitted, and the measurement report includes the CRI's reference signal resource.

[0275] In some embodiments, the second message indicates the quantity of the first reference signal resource, i.e., indicates M. R The value of .

[0276] In some embodiments, the name of the second message is not limited, and the name of the second message may be, for example, M. R Configuration message.

[0277] In some embodiments, the network device may only indicate M to the terminal. R The value of K is not indicated to the terminal. S Which of the reference signal resources (which M) R ( ) is the first reference signal resource. Optionally, the network device and the terminal may agree or default (or the network device may indicate to the terminal) that one or more reference signal resources at preset positions in the reference signal resource sequence are the first reference signal resources.

[0278] Optionally, the reference signal resource sequence is obtained by arranging it according to at least one of the following information:

[0279] Identifiers for each reference signal resource, such as indexes or IDs;

[0280] Priority of each reference signal resource;

[0281] The sequential relationship between the various reference signal resources configured in the network device.

[0282] In some embodiments, the priority of each reference signal resource can be determined according to the configuration order of the reference signal resources, or according to the order in which reference signals are transmitted on each reference signal resource. Alternatively, the priority of each reference signal resource can also be determined according to the size relationship of their indexes / IDs.

[0283] The identification, priority, and order of each reference signal resource are configured by the network device, and this disclosure does not limit this.

[0284] Optionally, the preset position includes, but is not limited to, the first sorting position, the middle sorting position, or the last sorting position.

[0285] For example, network devices and terminals may agree or default to referencing one or more of the first signals in the sequence of resources (i.e., M). R The first reference signal resource is defined as M. R =2, then the first two reference signal resources in the reference signal resource sequence are the first reference signal resources.

[0286] For example, network devices and terminals may agree or default to referencing one or more of the last signals in the sequence of resources (i.e., M). R The first reference signal resource is defined as M. R =2, then the last two reference signal resources in the reference signal resource sequence are the first reference signal resources.

[0287] In some embodiments, a group of reference signal resources including one or more first reference signal resources is designated as the first reference signal resource group. Optionally, the number of groups of the first reference signal resource group can be one or more. Optionally, the first reference signal resource group does not include the second reference signal resource. Optionally, K S In addition to M, among the reference signal resources R The remaining (K) resources other than the first reference signal resource S -M R All reference signal resources are second reference signal resources.

[0288] In some embodiments, a group of reference signal resources that includes one or more second reference signal resources but does not include the first reference signal resources is defined as a second reference signal resource group. Optionally, the number of second reference signal resource groups can be one or more.

[0289] In some embodiments, the network device and the terminal may agree upon or default to specifying M (or the network device may instruct the terminal). R The priority of the first reference signal resource is higher than (K). S -M R The priority of each second reference signal resource is determined, meaning that each first reference signal resource takes precedence over each second reference signal resource in transmitting reference signals. Accordingly, the first reference signal resource group takes precedence over the second reference signal resource group in transmitting reference signals.

[0290] In some embodiments, the reference time domain position of the first time domain offset corresponding to each first reference signal resource group is the first reference time domain position. Optionally, the first reference time domain position is determined by the time domain position of the downlink control information (DCI) and the second time domain offset, wherein the second time domain offset is a plurality of reference signal resources (i.e., K S The time-domain offset corresponding to a set of reference signal resources associated with a reference signal resource.

[0291] The reference time domain position indicates which time domain position the time domain offset starts from.

[0292] It should be explained that the activation signaling for the reference signal resource can be a DCI (Digital Cipher Interface). The first reference time domain position can be determined based on the time domain location of the DCI and a second time domain offset. For example, the time domain position after offsetting the second time domain offset from the time domain location of the DCI can be used as the first reference time domain position.

[0293] It should be explained that when a network device indicates time-domain information of multiple reference signal resources to a terminal, in related technologies, the network device associates these multiple reference signal resources with a reference signal resource set and configures a second time-domain offset for this reference signal resource set. The starting time-domain position of the reference signal resource set can be obtained by offsetting the second time-domain offset from the time-domain position where the DCI is located. This starting time-domain position of the reference signal resource set is referred to as the first reference time-domain position in this embodiment.

[0294] In some embodiments, the reference time domain position of each first reference signal resource group can be a first reference time domain position. Each first reference signal resource group can be offset from the first reference time domain position, and after offsetting by the corresponding first time domain offset, the starting time domain position of each first reference signal resource group is obtained. The first time domain offsets corresponding to each first reference signal resource group can be the same or different.

[0295] In some embodiments, the reference time-domain position of the first time-domain offset corresponding to the first first reference signal resource group is the first reference time-domain position. The reference time-domain position of the first time-domain offset of other first reference signal resource groups besides the first first reference signal resource group is the second reference time-domain position, which refers to the time-domain position of the last reference signal resource in the previous reference signal resource group.

[0296] In some embodiments, the reference time-domain location of the first time-domain offset corresponding to the second reference signal resource group includes at least one of the following:

[0297] The second reference time domain position is the time domain position of the last reference signal resource in the previous reference signal resource group.

[0298] The third reference time domain position is the time domain position of the last reference signal resource in the last first reference signal resource group.

[0299] In some embodiments, the reference time domain position corresponding to the first time domain offset of each second reference signal resource group can be the third reference time domain position.

[0300] In some embodiments, since the reference signal resource groups may have a sequential relationship, such as a sequential relationship of transmitting reference signals, the second reference signal resource groups may also have a sequential relationship. Based on the sequential relationship between the second reference signal resource groups, the time domain position (i.e., the third reference time domain position) of the last second reference signal resource in the previous second reference signal resource group can be used as the reference time domain position. If the previous reference signal resource group of the second reference signal resource group is the first reference signal resource group, then the time domain position of the last first reference signal resource in that first reference signal resource group is used as the reference time domain position.

[0301] It should be explained here that the time domain offset refers to the number of time units offset relative to the reference time domain position within the valid time unit; that is, invalid time units are not included in the time domain offset count. The time domain offset includes at least one of a first time domain offset, a second time domain offset, and a third time domain offset. The third time domain offset is described in later embodiments and will not be explained here.

[0302] In some embodiments, the effective time unit may refer to the downlink time unit, such as the downlink time slot.

[0303] In some embodiments, the first message includes a first indication information, which indicates a first time-domain offset corresponding to a first reference signal resource group. The terminal determines the first time-domain offset corresponding to the first reference signal resource group based on the first indication information.

[0304] Here, the first reference signal resource group can refer to the reference signal resource group that transmits the reference signal first; that is, the first reference signal resource group is the first reference signal resource group. The reference time domain position of the first time domain offset of the first reference signal resource group is the first reference time domain position.

[0305] Optionally, for the reference signal resource groups other than the first reference signal resource group (the first reference signal resource group and / or the second reference signal resource group), the network device may not indicate the time domain offset to the terminal. For example, the network device and the terminal may agree or default (or the network device may indicate to the terminal) that in the reference signal resource groups other than the first reference signal resource group (the first reference signal resource group and / or the second reference signal resource group), the starting time domain position of the later reference signal resource group and the ending time domain position of the earlier reference signal resource group are located within the same first time unit, that is, the starting time domain position of the later reference signal resource group is offset by 0 first time units relative to the ending time domain position of the earlier reference signal resource group. For example, in the reference signal resource groups other than the first reference signal resource group, each reference signal resource group takes the next time domain position after the time domain position of the last reference signal resource in the earlier reference signal resource group as its starting time domain position. That is, the time domain position corresponding to the next reference signal resource group is after the time domain position corresponding to the previous reference signal resource group, and the reference signal on the next reference signal resource group is transmitted after the reference signal of the previous reference signal resource group is transmitted. The arrangement order of the reference signal resource groups, as described above, is based on the order in which the reference signals are transmitted. For example, in all reference signal resource groups except the first one, the starting time domain position of each reference signal resource group is offset by 0 first time units relative to the time domain position of the last reference signal resource in the preceding reference signal resource group. Assuming the granularity of the offset is a time slot (i.e., the first time unit is a time slot), and assuming there are reference signal resource groups A and B, the time slot containing the last reference signal resource in reference signal resource group A is time slot #3, and the time domain position obtained by offsetting 0 time slots relative to time slot #3 is time slot #3. Reference signal resource group B can start with time slot #3. That is, the ending time domain position of reference signal resource group A and the starting time domain position of reference signal resource group B are both located in time slot #3. In some embodiments, assuming that the time-domain location of the last reference signal resource in reference signal resource group A is specifically the first symbol in time slot #3, reference signal resource group B can start with any symbol after the first symbol in time slot #3, such as the second symbol (or the third symbol, the fourth symbol, etc.). That is, the end time-domain location of reference signal resource group A and the start time-domain location of reference signal resource group B can be located in the same time slot and can be continuous or discontinuous in terms of symbols. The number of symbols between reference signal resource group A and reference signal resource group B can be agreed upon or defaulted by the network device and the terminal, or it can be agreed upon by the protocol or indicated by the network device. This disclosure does not limit this.

[0306] In some embodiments, the first message includes a first indication information, which indicates the first time-domain offset corresponding to the reference signal resource groups other than the first reference signal resource group. The terminal determines the first time-domain offset corresponding to the reference signal resource groups other than the first reference signal resource group based on the first indication information.

[0307] The first reference signal resource group is referred to as the first reference signal resource group. The reference time domain position of the first time domain offset of the first reference signal resource group is referred to as the first reference time domain position.

[0308] The number of reference signal resource groups other than the first reference signal resource group (the first reference signal resource group and / or the second reference signal resource group) can be one or more. Since the first time-domain offsets corresponding to the reference signal resource groups other than the first reference signal resource group can be the same, they can be indicated by a first indication information.

[0309] Alternatively, the network device may not indicate the time-domain offset configured for the first reference signal resource group to the terminal.

[0310] Optionally, the network device and the terminal can agree by default (or the network device can indicate to the terminal) that the starting time domain position of the first reference signal resource group is not offset relative to the first reference time domain position. For example, the starting time domain position of the first reference signal resource group is the same as the first reference time domain position.

[0311] Optionally, the reference time-domain position of the first time-domain offset of the reference signal resource groups other than the first reference signal resource group is the time-domain position of the last reference signal resource in the preceding reference signal resource group (either the first or second reference signal resource group). Optionally, the reference time-domain position of the first time-domain offset of the first reference signal resource group in the reference signal resource groups other than the first reference signal resource group is the first reference time-domain position. Furthermore, the reference time-domain position of the first time-domain offset of the second reference signal resource group is the time-domain position of the last reference signal resource in the preceding reference signal resource group (either the first or second reference signal resource group).

[0312] In some embodiments, the first message includes a plurality of first indication information, wherein one first indication information is used to indicate a first time domain offset corresponding to one or more reference signal resource groups.

[0313] The first reference signal resource group is referred to as the first reference signal resource group. The reference time domain position of the first time domain offset of the first reference signal resource group is referred to as the first reference time domain position.

[0314] In the first example, the first message includes multiple first indication messages. One first indication message indicates a first time-domain offset corresponding to a reference signal resource group. The terminal determines the first time-domain offset corresponding to a reference signal resource group based on one first indication message.

[0315] Specifically, the reference time-domain position of the first time-domain offset of the first reference signal resource group is either the first reference time-domain position or the second reference time-domain position. The reference time-domain position of the first time-domain offset of the second reference signal resource group is either the second reference time-domain position or the third reference time-domain position.

[0316] In the second example, the first message includes multiple first indication messages. One first indication message indicates a first time-domain offset corresponding to multiple reference signal resource groups. The terminal determines the first time-domain offsets corresponding to the multiple reference signal resource groups based on one first indication message. For example, some reference signal resource groups (e.g., reference signal resource groups A, B, C, D, E, F) may have the same first time-domain offset, and these reference signal resource groups (e.g., reference signal resource groups B, C, D) may share a single first indication message.

[0317] It should be noted that among these reference signal resource groups (e.g., reference signal resource groups B, C, and D) sharing a common first indication information, the reference time domain position corresponding to the later reference signal resource group is the time domain position of the last reference signal resource in the preceding reference signal resource group. For example, the reference time domain position corresponding to the later reference signal resource group C is the time domain position of the last reference signal resource in the preceding reference signal resource group B. Similarly, the reference time domain position corresponding to the later reference signal resource group D is the time domain position of the last reference signal resource in the preceding reference signal resource group C. For reference signal resource group B, if reference signal resource group B is the first reference signal resource group, the corresponding reference time domain position can be either the first reference time domain position or the time domain position of the last reference signal resource in reference signal resource group A. If reference signal resource group B is the second reference signal resource group, the corresponding reference time domain position is the time domain position of the last reference signal resource in reference signal resource group A.

[0318] In the third example, the first message includes multiple first indication messages. Each of the first indication messages in one part indicates a first time-domain offset corresponding to a reference signal resource group. Each of the first indication messages in another part indicates first time-domain offsets corresponding to multiple reference signal resource groups. That is, the third example is a combination of the first and second examples. Further detailed examples are omitted here.

[0319] In some embodiments, when there are multiple reference signal resources in a reference signal resource group, the reference signal resources in the reference signal resource group can be configured to transmit reference signals on multiple time units. In this case, the first message may further include at least one second indication information, which indicates a third time-domain offset corresponding to a reference signal resource within the reference signal resource group, and the reference time-domain position corresponding to the third time-domain offset is the starting time-domain position of the reference signal resource group. For example, the terminal obtains the starting time-domain position of the reference signal resource by offsetting the third time-domain offset from the starting time-domain position of the reference signal resource group.

[0320] It should be noted that multiple reference signal resources in a reference signal resource group can transmit reference signals on the same first time unit. For example, a reference signal resource group may include three reference signal resources, of which two reference signal resources can transmit reference signals on the same first time unit.

[0321] For example, reference signal resources within a reference signal resource group are configured to transmit reference signals on two adjacent time units (e.g., time slots). A second indication information can be configured for each reference signal resource within the reference signal resource group. Each second indication information indicates the further offset of each reference signal resource relative to the starting time domain position of the reference signal resource group. Optionally, the length of a second indication information can be 1 bit, with a value of 0 or 1. 0 indicates that no further offset will be made relative to the starting time domain position of the reference signal resource group; a second indication information with a value of 0 can be omitted. 1 indicates an offset of one time unit relative to the starting time domain position of the reference signal resource group.

[0322] In the embodiments of this disclosure, when a reference signal resource group includes one reference signal resource, the corresponding first indication information implements resource-level offset indication. When a reference signal resource group includes multiple reference signal resources, and each reference signal resource in the group is configured to transmit reference signals on a time unit (e.g., a time slot), the first indication information implements resource-level offset indication. When a reference signal resource group includes multiple reference signal resources, and each reference signal resource in the group is configured to transmit reference signals on multiple time units, the first and second indication information together implement resource-level offset indication. Therefore, in the embodiments of this disclosure, the network device can implement resource-level offset indication by sending a first message to the terminal, so that the terminal can determine the accurate time-domain offset corresponding to each reference signal resource, thereby accurately determining the starting time-domain position corresponding to each reference signal resource.

[0323] In some embodiments, the network device may also indicate a second time-domain offset to the terminal, or the second time-domain offset may be a default value.

[0324] In step S2203, terminal 101 determines the time domain information of the reference signal resource.

[0325] In step S2204, terminal 101 determines the starting time domain position corresponding to the reference signal resource based on the time domain information of the reference signal resource.

[0326] In some embodiments, if the first message includes a first indication information, and the first indication information is used to indicate a first time-domain offset corresponding to a first reference signal resource group, then the implementation method for the terminal to determine the time-domain information of the reference signal resource based on the first message includes: determining the first time-domain offset corresponding to the first reference signal resource group based on the first indication information.

[0327] Since the first reference signal resource group can refer to the reference signal resource group that transmits the reference signal first, that is, the first reference signal resource group is the first reference signal resource group. And the reference time domain position of the first time domain offset of the first reference signal resource group can be the first reference time domain position. Therefore, the implementation method for the terminal to determine the starting time domain position corresponding to the reference signal resource based on the time domain information of the reference signal resource, such as the time domain offset and the reference time domain position, includes: the terminal can determine the starting time domain position corresponding to the first reference signal resource group based on the first time domain offset and the first reference time domain position corresponding to the first reference signal resource group. The starting time domain position corresponding to the first reference signal resource group is the starting time domain position for receiving the reference signal transmitted by the first reference signal resource group.

[0328] Optionally, the network device and the terminal may agree or default (or the network device may instruct the terminal) that, in the remaining reference signal resource groups (excluding the first reference signal resource group and / or the second reference signal resource group), the starting time domain position of the latter reference signal resource group and the ending time domain position of the former reference signal resource group are located within the same first time unit. That is, the starting time domain position of the latter reference signal resource group is offset by 0 first time units relative to the ending time domain position of the former reference signal resource group. Optionally, in the remaining reference signal resource groups (excluding the first reference signal resource group), each reference signal resource group takes the time domain position following the time domain position of the last reference signal resource in the former reference signal resource group as its starting time domain position. That is, the time domain position corresponding to the latter reference signal resource group is after the time domain position corresponding to the former reference signal resource group, and the reference signal on the latter reference signal resource group is transmitted after the reference signal of the former reference signal resource group is transmitted. In this way, after determining the starting time domain position corresponding to the first reference signal resource group, the starting time domain positions of the remaining reference signal resource groups can be determined. The end time domain position of the previous reference signal resource group is used as the starting time domain position of the next reference signal resource group. Optionally, in all reference signal resource groups except the first one, the starting time domain position of each reference signal resource group is offset by 0 first time units relative to the time domain position of the last reference signal resource in the previous reference signal resource group. Assuming the granularity of the offset is a slot, i.e., the first time unit is a slot, and assuming there are reference signal resource groups A and B, the slot where the last reference signal resource in reference signal resource group A is located is slot #3, and the time domain position obtained by offsetting 0 slots relative to slot #3 is slot #3. Reference signal resource group B can start with slot #3. That is, the end time domain position of reference signal resource group A and the starting time domain position of reference signal resource group B are both located in slot #3. In some embodiments, assuming that the time-domain location of the last reference signal resource in reference signal resource group A is specifically the first symbol in time slot #3, reference signal resource group B can start with any symbol after the first symbol in time slot #3, such as the second symbol (or the third symbol, the fourth symbol, etc.). That is, the end time-domain location of reference signal resource group A and the start time-domain location of reference signal resource group B can be located in the same time slot and can be continuous or discontinuous in terms of symbols. The number of symbols between reference signal resource group A and reference signal resource group B can be agreed upon or defaulted by the network device and the terminal, or it can be agreed upon by the protocol or indicated by the network device. This disclosure does not limit this.

[0329] In some embodiments, if the first message includes a first indication information, which indicates the first time-domain offset corresponding to the remaining reference signal resource groups (the first reference signal resource group and / or the second reference signal resource group) other than the first reference signal resource group (the first reference signal resource group), then the implementation of the terminal determining the time-domain information of the reference signal resources according to the first message includes: determining the first time-domain offset corresponding to the remaining reference signal resource groups other than the first reference signal resource group according to the first indication information.

[0330] Optionally, the network device and the terminal may agree or default (or the network device may instruct the terminal) that the reference time domain position of the first time domain offset of the reference signal resource group other than the first reference signal resource group is the time domain position of the last reference signal resource in the previous reference signal resource group (which may be the first reference signal resource group or the second reference signal resource group).

[0331] Optionally, the network device and the terminal may agree or default (or the network device may instruct the terminal) that the reference time domain position of the first time domain offset of the first reference signal resource group in the remaining reference signal resource groups other than the first reference signal resource group is the first reference time domain position. Furthermore, the reference time domain position of the first time domain offset of the second reference signal resource group is the time domain position of the last reference signal resource in its preceding reference signal resource group (either the first or second reference signal resource group).

[0332] Optionally, the network device and the terminal may agree or default (or the network device may indicate to the terminal) that the starting time domain position of the first reference signal resource group is not offset relative to the first reference time domain position. For example, the starting time domain position of the first reference signal resource group is the same as the first reference time domain position.

[0333] In this way, the terminal can determine the starting time domain position corresponding to the first reference signal resource group as the first reference time domain position, and the terminal can determine the starting time domain position of each of the other reference signal resource groups based on the first time domain offset and the second time domain reference position corresponding to the other reference signal resource groups.

[0334] In some embodiments, if the first message includes multiple first indication information, and one first indication information is used to indicate a first time-domain offset corresponding to one or more reference signal resource groups, then the implementation method for the terminal to determine the time-domain information of the reference signal resources based on the first message includes: determining the first time-domain offsets corresponding to multiple reference signal resource groups based on the multiple first indication information.

[0335] In the first example, if the first message includes multiple first indication messages, each first indication message indicates a first time-domain offset corresponding to a reference signal resource group. Then, the terminal can determine the first time-domain offset corresponding to a reference signal resource group based on a single first indication message. Optionally, the network device and the terminal can agree or default (or the network device can indicate to the terminal) that the reference time-domain position of the first time-domain offset of the first reference signal resource group is either a first reference time-domain position or a second reference time-domain position. The reference time-domain position of the first time-domain offset of the second reference signal resource group is either a second reference time-domain position or a third reference time-domain position. Thus, the terminal can determine the starting time-domain position corresponding to each reference signal resource group based on the first time-domain offset and the corresponding reference time-domain position.

[0336] In the second example, if the first message includes multiple first indication messages, each first indication message indicates a first time-domain offset corresponding to multiple reference signal resource groups. Then, the terminal can determine the first time-domain offset corresponding to multiple reference signal resource groups based on a single first indication message. For example, suppose a first indication message indicates K... S The terminal then determines the first time-domain offset of some reference signal resource groups (e.g., reference signal resource groups B, C, and D) within a set of reference signal resource groups (e.g., reference signal resource groups A, B, C, D, E, and F).

[0337] Optionally, the network device and the terminal may agree or default to the following (or the network device may instruct the terminal): among these reference signal resource groups (e.g., reference signal resource groups B, C, and D) that share a first indication information, the reference time domain position corresponding to the later reference signal resource group is the time domain position of the last reference signal resource in the preceding reference signal resource group. For example, the reference time domain position corresponding to the later reference signal resource group C is the time domain position of the last reference signal resource in the preceding reference signal resource group B. For example, the reference time domain position corresponding to the later reference signal resource group D is the time domain position of the last reference signal resource in the preceding reference signal resource group C. For reference signal resource group B, if reference signal resource group B is the first reference signal resource group, the reference time domain position is the first reference time domain position or the time domain position of the last reference signal resource in reference signal resource group A. If reference signal resource group B is the second reference signal resource group, the reference time domain position is the time domain position of the last reference signal resource in reference signal resource group A.

[0338] Thus, the terminal can determine the first time-domain offset corresponding to each reference signal resource group, and determine the starting time-domain position corresponding to each reference signal resource group based on the first time-domain offset corresponding to each reference signal resource group and the corresponding reference time-domain position.

[0339] The third example combines the first and second examples. If the first message includes multiple first indication messages, where each of some of these first indication messages indicates a first time-domain offset corresponding to a reference signal resource group, and each of other first indication messages indicates first time-domain offsets corresponding to multiple reference signal resource groups, then the terminal can determine the first time-domain offset corresponding to each reference signal resource group based on these first indication messages. Furthermore, the terminal can determine the starting time-domain position corresponding to each reference signal resource group based on the first time-domain offset and the reference time-domain position.

[0340] In the embodiments described above, when a reference signal resource group includes one reference signal resource, the corresponding first indication information implements resource-level offset indication. When a reference signal resource group includes multiple reference signal resources, and each reference signal resource in the group is configured to transmit a reference signal in a time unit (e.g., a time slot), the first indication information implements resource-level offset indication. In both cases, the starting time-domain position of the reference signal resource group determined by the terminal is the starting time-domain position of each reference signal resource within that group.

[0341] In some embodiments, where there are multiple reference signal resources in a reference signal resource group, and the reference signal resources in the reference signal resource group are configured to transmit reference signals on multiple time units, the implementation method for the terminal to determine the time domain information of the reference signal resources according to the first message further includes: after determining the starting time domain position of the reference signal resource group, the terminal determines a third time domain offset according to the second indication information in the first message, and determines the starting time domain position of each reference signal resource according to the third time domain offset and the starting time domain position of the reference signal resource group. For example, the terminal obtains the starting time domain position of the reference signal resource by offsetting the starting time domain position of the reference signal resource group by the third time domain offset.

[0342] It should be noted that multiple reference signal resources in a reference signal resource group can transmit reference signals on the same first time unit. For example, a reference signal resource group may include three reference signal resources, of which two reference signal resources can transmit reference signals on the same first time unit.

[0343] Optionally, the length of a second indication message can be 1 bit, with a value of 0 or 1. A value of 0 indicates that no further offset will be made relative to the starting time domain position of the reference signal resource group; a second indication message with a value of 0 can be omitted. A value of 1 indicates that the offset will be made by one time unit relative to the starting time domain position of the reference signal resource group. The terminal can determine the starting time domain position of each reference signal resource in the reference signal resource group based on the second indication message and the starting time domain position of the reference signal resource group.

[0344] In the above embodiments of this disclosure, when a reference signal resource group includes multiple reference signal resources and each reference signal resource in the reference signal resource group is configured to transmit reference signals on multiple time units, the first indication information combined with the second indication information realizes the resource-level offset indication.

[0345] In the above embodiments of this disclosure, the terminal can determine the accurate time domain offset corresponding to each reference signal resource based on the first message, and thus accurately determine the starting time domain position corresponding to each reference signal resource.

[0346] In some embodiments, when the terminal determines the starting time domain position corresponding to each reference signal resource, it can start receiving reference signals at the corresponding starting time domain position for each reference signal resource, thereby receiving reference signals more accurately, improving energy efficiency and reducing energy consumption.

[0347] This disclosure implements resource-level time-domain offset indication and minimizes indication overhead by grouping reference signal resources and having multiple reference signal resources (groups) share a single indication information. Furthermore, based on the M configured in the network device... R Various reference time domain positions can be flexibly configured, and the overhead of indicating time domain offset can be reduced by using flexible reference time domain position settings.

[0348] The communication method involved in the embodiments of this disclosure may include at least one of steps S2201 to S2204. For example, step S2201 may be implemented as a standalone embodiment, step S2202 may be implemented as a standalone embodiment, step S2203 may be implemented as a standalone embodiment, and steps S2201, S2202 and S2203 may be implemented as standalone embodiments, but are not limited thereto.

[0349] In some embodiments, the order of any two steps S2201 to S2204 can be interchanged or they can be performed simultaneously. For example, the order of steps S2201 and S2202 can be interchanged or they can be performed simultaneously. In some embodiments, steps S2201 and S2202 can be combined into one step.

[0350] In some embodiments, steps S2202 to S2204 are optional, and one or more of these steps may be omitted or substituted in different embodiments.

[0351] In some embodiments, steps S2201, S2203, and S2204 are optional, and one or more of these steps may be omitted or substituted in different embodiments.

[0352] In some embodiments, steps S2201, S2202, and S2204 are optional, and one or more of these steps may be omitted or substituted in different embodiments.

[0353] In some embodiments, step S2204 is optional and may be omitted or replaced in different embodiments.

[0354] 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.

[0355] Figure 3A is an interactive schematic diagram illustrating a communication method according to an embodiment of the present disclosure. As shown in Figure 3A, the embodiment of the present disclosure relates to a communication method executed by a communication system 100, the method including:

[0356] In step S3101, network device 102 sends a first message to terminal 101.

[0357] Optionally, the first message indicates time-domain information of the reference signal resource. Optionally, the time-domain information includes at least one of time-domain offset, reference time-domain position, and specific starting time-domain position.

[0358] Optionally, when there are multiple reference signal resources, the multiple reference signal resources are configured into multiple reference signal resource groups, and the number of reference signal resources in a reference signal resource group is one or more.

[0359] Optionally, the first message includes one or more first indication messages, wherein the first indication message is used to indicate a first time-domain offset corresponding to one or more reference signal resource groups.

[0360] Optionally, the first message includes a first indication information, which indicates the first time-domain offset corresponding to the first reference signal resource group.

[0361] Optionally, the first message includes a first indication information, which indicates the first time-domain offset corresponding to the other reference signal resource groups besides the first reference signal resource group.

[0362] Optionally, the first message includes multiple first indication messages, one of which indicates a first time-domain offset corresponding to one or more reference signal resource groups.

[0363] Optionally, the first time-domain offset is offset from at least one of the following starting positions:

[0364] The first reference time domain position is determined by the time domain position of the downlink control information (DCI) and the second time domain offset. The second time domain offset is the time domain offset corresponding to a set of reference signal resources associated with multiple reference signal resources.

[0365] The second reference time domain position is the time domain position of the last reference signal resource in the previous reference signal resource group.

[0366] Optionally, the network device sends a second message to the terminal, the second message indicating that one or more first reference signal resources are included among the multiple reference signal resources, a measurement report of the first reference signal resources is required to be reported, and the measurement report includes a reference signal resource indication (CRI).

[0367] Optionally, one or more first reference signal resources are reference signal resources at one or more preset positions in a reference signal resource sequence, wherein the reference signal resource sequence is obtained by arranging according to at least one of the following information:

[0368] Identification of each reference signal resource;

[0369] Priority of each reference signal resource;

[0370] The sequential relationship between the various reference signal resources configured in the network device.

[0371] Optionally, one or more first reference signal resources are the first one or more reference signal resources in the reference signal resource sequence; or, one or more first reference signal resources are the last one or more reference signal resources in the reference signal resource sequence.

[0372] Optionally, the reference time domain position of the first time domain offset corresponding to the first reference signal resource group is the first reference time domain position, and the first reference signal resource group is a reference signal resource group including one or more first reference signal resources; wherein, the first reference time domain position is determined by the time domain position of the downlink control information DCI and the second time domain offset, wherein the second time domain offset is the time domain offset corresponding to a reference signal resource set associated with multiple reference signal resources.

[0373] Optionally, the first reference signal resource takes precedence over the second reference signal resource in transmitting reference signals, wherein the second reference signal resource is a reference signal resource other than the first reference signal resource among a plurality of reference signal resources;

[0374] The reference time domain location of the first time domain offset corresponding to the second reference signal resource group includes at least one of the following:

[0375] The second reference time domain position is the time domain position of the last reference signal resource in the previous reference signal resource group.

[0376] The third reference time domain location is the time domain location of the last reference signal resource in the last first reference signal resource group;

[0377] The second reference signal resource group is a reference signal resource group that includes the second reference signal resource but does not include the first reference signal resource.

[0378] Optionally, when there are multiple reference signal resources in the reference signal resource group, the reference signal resources in the reference signal resource group are configured to transmit reference signals on multiple time units; the first message includes at least one second indication information, which is used to indicate a third time domain offset corresponding to a reference signal resource in the reference signal resource group, and the reference time domain position corresponding to the third time domain offset is the starting time domain position of the reference signal resource group.

[0379] Optionally, the time domain offset refers to the number of time units offset in the effective time unit, and the time domain offset includes at least one of the first time domain offset, the second time domain offset, and the third time domain offset.

[0380] In step S3102, terminal 101 determines the time domain information of the reference signal resource according to the first message, and determines the starting time domain position of the reference signal on the reference signal resource based on the time domain information of the reference signal resource.

[0381] Optionally, there may be multiple reference signal resources, and multiple reference signal resources may correspond to multiple reference signal resource groups. The number of reference signal resources in a reference signal resource group may be one or more.

[0382] Optionally, the first message includes a first indication information, based on which a first time-domain offset corresponding to the first reference signal resource group is determined.

[0383] Optionally, the first message includes a first indication information, based on which the first time-domain offset corresponding to the other reference signal resource groups besides the first reference signal resource group is determined.

[0384] Optionally, the first message includes multiple first indication information, and the first time domain offset corresponding to multiple reference signal resource groups is determined based on the multiple first indication information.

[0385] Optionally, the starting time domain position of at least one reference signal resource group is determined based on at least one first time domain offset and a reference time domain position, wherein the reference time domain position includes at least one of the following:

[0386] The first reference time domain position is determined by the time domain position of the downlink control information (DCI) and the second time domain offset. The second time domain offset is the time domain offset corresponding to a set of reference signal resources associated with multiple reference signal resources. The second time domain offset is indicated to the terminal by the network device.

[0387] The second reference time domain position is the time domain position of the last reference signal resource in the previous reference signal resource group.

[0388] Optionally, the terminal receives a second message sent by the network device, the second message indicating that one or more first reference signal resources are included among a plurality of reference signal resources, a measurement report of the first reference signal resources is required to be reported, and the measurement report includes a reference signal resource indication (CRI).

[0389] Optionally, the terminal determines one or more reference signal resources at preset positions in the reference signal resource sequence as the first reference signal resource, wherein the reference signal resource sequence is obtained by arranging the reference signal resources according to at least one of the following information:

[0390] Identification of each reference signal resource;

[0391] Priority of each reference signal resource;

[0392] The sequential relationship between the reference signal resources configured in the network device.

[0393] Optionally, determining one or more reference signal resources at preset positions in the reference signal resource sequence as the first reference signal resource includes: determining one or more reference signal resources at the very beginning of the reference signal resource sequence as the first reference signal resource; or, determining one or more reference signal resources at the very end of the reference signal resource sequence as the first reference signal resource.

[0394] Optionally, the reference time domain position of the first time domain offset corresponding to the first reference signal resource group is the first reference time domain position, and the first reference signal resource group is a reference signal resource group including one or more first reference signal resources; wherein, the first reference time domain position is determined by the time domain position of the downlink control information DCI and the second time domain offset, wherein, the second time domain offset is the time domain offset corresponding to a reference signal resource set associated with multiple reference signal resources, and the second time domain offset is indicated to the terminal by the network device.

[0395] Optionally, the first reference signal resource takes precedence over the second reference signal resource in transmitting reference signals, wherein the second reference signal resource is a reference signal resource other than the first reference signal resource among a plurality of reference signal resources;

[0396] The reference time domain location of the first time domain offset corresponding to the second reference signal resource group includes at least one of the following:

[0397] The second reference time domain position is the time domain position of the last reference signal resource in the previous reference signal resource group.

[0398] The third reference time domain location is the time domain location of the last reference signal resource in the last first reference signal resource group;

[0399] The second reference signal resource group is a reference signal resource group that includes the second reference signal resource but does not include the first reference signal resource.

[0400] Optionally, when there are multiple reference signal resources in the reference signal resource group, the reference signal resources in the reference signal resource group are configured to transmit reference signals on multiple time units;

[0401] The first message includes at least one second indication information. Based on the second indication information, a third time-domain offset corresponding to a reference signal resource within a reference signal resource group is determined. The time-domain position of the reference signal is obtained by offsetting the third offset at the starting time-domain position of the reference signal group.

[0402] Optionally, the time domain offset refers to the number of time units offset in the effective time unit, and the time domain offset includes at least one of the first time domain offset, the second time domain offset, and the third time domain offset.

[0403] In some embodiments, the steps and their optional implementations, explanations, and other related parts of the specification can be found in other embodiments described before or after Figures 2A and 2B, which will not be repeated here.

[0404] Figure 3B is a flowchart illustrating a communication method according to an embodiment of the present disclosure. As shown in Figure 3B, this embodiment of the present disclosure relates to a communication method executed by a network device 102, the method including:

[0405] In step S3201, network device 102 sends a first message to terminal 101, the first message indicating the time domain information of reference signal resources.

[0406] Optional implementations of step S3201 can be found in the steps performed by the network device in Figures 2A, 2B and 3A and other related parts, which will not be repeated here.

[0407] In some embodiments, the steps and their optional implementations, explanations, and other related parts of the specification described before or after this embodiment can be referred to, which will not be repeated here.

[0408] Figure 3C is a flowchart illustrating a communication method according to an embodiment of the present disclosure. As shown in Figure 3C, the embodiment of the present disclosure relates to a communication method executed by a terminal, the method including:

[0409] In step S3301, terminal 101 receives a first message sent by network device and determines the time domain information of reference signal resources based on the first message.

[0410] Optional implementations of step S3201 can be found in the steps performed by the network device in Figures 2A, 2B and 3A and other related parts, which will not be repeated here.

[0411] Step S3302: Determine the starting time domain position of the reference signal on the received reference signal resource based on the time domain information of the reference signal resource.

[0412] Optional implementations of step S3201 can be found in the steps performed by the network device in Figures 2A, 2B and 3A and other related parts, which will not be repeated here.

[0413] In some embodiments, the steps and their optional implementations, explanations, and other related parts of the specification described before or after this embodiment can be referred to, which will not be repeated here.

[0414] In some embodiments, this disclosure proposes M R The configuration method for a CSI-RS resource includes: determining the configuration M based on the resource index or ID of the CSI-RS resource. R One CSI-RS resource.

[0415] In some embodiments, the present disclosure provides a method for determining the offset position of aperiodic CSI-RS (AP CSI-RS) resources, including:

[0416] First, assume the offset (i.e., domain offset) of the configured aperiodic resource set is X slots, and the slot after offset X slots is used as the reference slot. The number of configured AP CSI-RS resources is Ks. Furthermore, all offset values ​​are slot offsets relative to the reference slot within the available downlink slot range.

[0417] In some embodiments, the network does not configure parameter M. R .

[0418] Example 1: For each AP CSI-RS resource, Y bits are configured to indicate the slot offset value of each resource relative to the reference slot. Optionally, Y can be determined based on the configured number of resources Ks or a predefined value. Optionally, the Y bits indicate the slot offset value relative to the reference slot within the available downlink slot range.

[0419] Example 2: Ks AP CSI-RS resources are divided into G1 groups, each group containing at least one AP CSI-RS resource. Each group is configured with Z bits to indicate the offset value of the group relative to the reference time slot. AP CSI-RS resources within each group can be configured for transmission within one or two adjacent slots. If a resource within a resource group can be configured within two slots, then 1 bit is configured for each AP CSI-RS resource to indicate whether the resource is offset by one slot relative to the offset position of the resource group. Optionally, Optionally, the slot where each resource in each group is located is an available downlink slot.

[0420] Optionally, the offset value of each resource group can be based on the slot where the last resource of the previous resource group is located as the reference time slot or the starting time slot. In this case, it is not necessary to use the Z bit to indicate the offset value of each resource group.

[0421] Example 3: Ks AP CSI-RS resources are divided into G1 groups, each containing at least one AP CSI-RS resource. The first group has an offset of 0 relative to the reference time slot. The second group has an offset of N slots relative to the first group (any time slot in the first group is used as the reference time slot, preferably the first or last time slot). The third group has an offset of N slots relative to the second group, and so on, i.e., each group is offset by N slots relative to the previous group. Optionally, N is a predefined integer or the number of AP CSI-RS resources in the group (or the previous group). Optionally, the slot where each resource in each group is located is an available downlink time slot.

[0422] In some embodiments, network configuration parameter M R .

[0423] Optionally, M R The offset of each AP CSI-RS resource relative to the reference slot is 1 or 2 slots, and the remaining Ks-M R Each resource configuration J bits in an AP CSI-RS resource indicates the resource relative to M. R The offset value of J is the time slot (i.e., the second reference time slot) containing the last resource among the resources. Optionally, the value of J can be determined based on the remaining number of sources Ks-M. R Alternatively, a predefined value can be used.

[0424] Optionally, M R Each AP CSI-RS resource has an offset of 1 or 2 slots relative to the reference slot, leaving Ks-M R Each AP CSI-RS resource is divided into group G2. The offset values ​​for each resource in each group can be determined using the methods described in Example 2 or Example 3 above.

[0425] Optionally, the CSI-RS resources mentioned above can be sorted according to their CSI-RS resource index or ID, and then grouped to determine the offset position of each resource. Each resource within a group can be configured in one or two adjacent slots.

[0426] Example 1, M R The implementation method for configuring AP CSI-RS resources includes: assuming the NW is configured with Ks = 8 AP CSI-RS resources, and if the NW side is also configured with M via RRC... R =2 indicates that two AP CSI-RS are selected by the NW side, and the CRI, PMI, or CQI measurements obtained by the UE corresponding to these two resources must be reported by the UE. After sorting these 8 AP CSI-RS resource IDs by index size, the two AP CSI-RS with the largest or smallest index are selected as the M selected by the NW. R = 2 AP CSI-RS resources. Optionally, after sorting the indexes of each AP CSI-RS resource according to the RRC configuration in ascending order, the two AP CSI-RS with the largest or smallest CSI-RS resource indexes are predefined as the M selected by NW. R = 2 AP CSI-RS resources.

[0427] Example 2: Suppose the NW is configured with Ks = 4 AP CSI-RS resources, and the NW is not configured with parameter M. R The offset position of each AP CSI-RS resource is indicated as follows: Each resource is indicated via... It indicates the offset value of each resource, which is a time slot determined by the offset value of the aperiodic resource set configured by NW as a reference time slot.

[0428] Referring to Figure 4A, L=2 refers to the slot offset value of the AP CSI-RS resource set relative to the DCI, configured by the NW via RRC signaling. Then, the slot used for transmitting the AP CSI-RS resource set, determined based on the configured AP CSI-RS resource offset value L, is used as the reference slot. The offset value of each AP CSI-RS relative to the reference slot is then indicated by Y=2 bits. If the offset value of the first AP CSI-RS resource, AP-RS1, is 0, then its starting slot is the position of the reference slot. If the offset value of AP-RS2 is configured to be 1, its position is one slot offset relative to the reference slot. If the offset value of AP-RS3 is configured to be 2, its position is two slot offset relative to the reference slot. If the offset value of AP-RS4 is configured to be 3, its position is three slot offset relative to the reference slot.

[0429] It should be noted that when determining the slot corresponding to the offset based on the offset value configured in the NW, if an unavailable downlink slot is involved, such as an uplink slot, the uplink slot should not be included in the offset count. For example, assuming the second slot relative to the reference time slot (time slots are numbered starting from 0) is the uplink slot, then the slot where the configured AP-RS3 is located should be further offset to the third slot relative to the reference time slot, as shown in Figure 4B. Note that the offset value here is still indicated using 2 bits and the indicated value is also 2, but this value refers to the offset value relative to the reference time slot within the range of available downlink slots; unavailable slots are not included in the offset value calculation.

[0430] Example 3: Assume the NW side is configured with Ks = 6 AP CSI-RS resources, and these 6 resources are divided into 3 resource groups. For each CSI-RS, through... This indicates the slot offset value for the resource group. This slot offset is still relative to the reference slot. The definition of the reference slot is the same as in Example 2. For each resource within each resource group, one bit is used to indicate whether each resource should be further offset by one slot relative to the slot where the resource group is located. Figure 4C shows the slot offsets for the three AP CSI-RS resource groups. One CSI-RS resource in AP-RS-G2 is indicated by one bit to be offset by one slot relative to the slot where AP-RS-G2 is located.

[0431] It should be noted that for the offset value of the AP-RS-G3 group, it can be directly indicated by the Z bits, or it can be based on the time slot position of the last resource in the previous AP-RS-G2 group as the reference time slot and then offset by N=1 slots as the slot where AP-RS-G3 is located, as shown in Figure 4C.

[0432] Example 4: The method for determining the time slot offset when MR resources are configured is as follows: Assume NW is configured with M... R = 2 AP CSI-RS resources, and a total of Ks = 6 AP CSI-RS resources are configured. Similar to Example 1, the two resources with the smallest resource IDs among the 6 resources are designated as M. R First, determine this M resource. R The offset value of each resource. This M R Each resource uses 1 bit to indicate its offset relative to the reference time slot. A value of 0 indicates no offset relative to the reference time slot; otherwise, it offsets by one slot. Then, Ks-M is determined. R The offset value of each AP CSI-RS resource. For example, for each AP CSI-RS resource in Ks-MR, via... Indicates the offset value relative to the reference time slot. The method for indicating the offset value is the same as described in Examples 2 and 3 above, and will not be repeated here.

[0433] 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.

[0434] By employing any of the above embodiments of this disclosure, the offset value of each AP CSI-RS resource can be indicated with less configuration overhead.

[0435] 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.

[0436] 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.

[0437] 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).

[0438] Figure 5A is a schematic diagram of the structure of a network device according to an embodiment of the present disclosure. The network device 5100 is used to perform any of the above methods. In some embodiments, as shown in Figure 5A, the network device 5100 may include at least one of a transceiver module 5101, a processing module 5102, etc. In some embodiments, the transceiver module is used to send a first message to a terminal, the first message indicating time-domain information of a reference signal resource. Optionally, the transceiver module is used to perform communication steps such as sending and / or receiving performed by the network device 102 in any of the above methods (e.g., at least one of steps S2101, S2201, and S2202, which will not be elaborated here). Optionally, the processing module is used to perform at least one of other steps performed by the network device 102 in any of the above methods (e.g., steps S2102, S2103, S2203, and S2204, but not limited thereto), which will not be elaborated here.

[0439] Optionally, when there are multiple reference signal resources, the multiple reference signal resources are configured into multiple reference signal resource groups, and the number of reference signal resources in a reference signal resource group is one or more.

[0440] Optionally, the first message includes one or more first indication messages, wherein the first indication message is used to indicate a first time-domain offset corresponding to one or more reference signal resource groups.

[0441] Optionally, the first message includes a first indication information, which indicates the first time-domain offset corresponding to the first reference signal resource group.

[0442] Optionally, the first message includes a first indication information, which indicates the first time-domain offset corresponding to the other reference signal resource groups besides the first reference signal resource group.

[0443] Optionally, the first message includes multiple first indication messages, one of which indicates a first time-domain offset corresponding to one or more reference signal resource groups.

[0444] Optionally, the first time-domain offset is offset from at least one of the following starting positions:

[0445] The first reference time domain position is determined by the time domain position of the downlink control information (DCI) and the second time domain offset. The second time domain offset is the time domain offset corresponding to a set of reference signal resources associated with multiple reference signal resources.

[0446] The second reference time domain position is the time domain position of the last reference signal resource in the previous reference signal resource group.

[0447] Optionally, the transceiver module 5101 is further configured to: send a second message to the terminal, the second message indicating that one or more first reference signal resources are included among a plurality of reference signal resources, a measurement report of the first reference signal resources is requested to be reported, and the measurement report includes a reference signal resource indication (CRI).

[0448] Optionally, one or more first reference signal resources are reference signal resources at one or more preset positions in a reference signal resource sequence, wherein the reference signal resource sequence is obtained by arranging according to at least one of the following information:

[0449] Identification of each reference signal resource;

[0450] Priority of each reference signal resource;

[0451] The sequential relationship between the various reference signal resources configured in the network device.

[0452] Optionally, one or more first reference signal resources are the first one or more reference signal resources in the reference signal resource sequence; or, one or more first reference signal resources are the last one or more reference signal resources in the reference signal resource sequence.

[0453] Optionally, the first time-domain offset corresponding to the first reference signal resource group is offset from the first reference time-domain position, and the first reference signal resource group is a reference signal resource group including one or more of the first reference signal resources; wherein, the first reference time-domain position is obtained by offsetting the second time-domain offset from the time-domain position where the downlink control information (DCI) is located, wherein the second time-domain offset is the time-domain offset corresponding to a reference signal resource set associated with the plurality of reference signal resources.

[0454] Optionally, the first reference signal resource has a higher priority for transmitting reference signals than the second reference signal resource, wherein the second reference signal resource is a reference signal resource other than the first reference signal resource among the plurality of reference signal resources;

[0455] The first time-domain offset corresponding to the second reference signal resource group is offset from at least one of the following starting positions:

[0456] The second reference time domain position is the time domain position of the last reference signal resource in the previous reference signal resource group;

[0457] The third reference time domain location is the time domain location of the last reference signal resource in the last first reference signal resource group;

[0458] The second reference signal resource group is a reference signal resource group that includes the second reference signal resource.

[0459] Optionally, the reference time domain position of the first time domain offset corresponding to the first reference signal resource group is the first reference time domain position, and the first reference signal resource group is a reference signal resource group including one or more first reference signal resources; wherein, the first reference time domain position is determined by the time domain position of the downlink control information DCI and the second time domain offset, wherein the second time domain offset is the time domain offset corresponding to a reference signal resource set associated with multiple reference signal resources.

[0460] Optionally, the first reference signal resource takes precedence over the second reference signal resource in transmitting reference signals, wherein the second reference signal resource is a reference signal resource other than the first reference signal resource among a plurality of reference signal resources;

[0461] The reference time domain location of the first time domain offset corresponding to the second reference signal resource group includes at least one of the following:

[0462] The second reference time domain position is the time domain position of the last reference signal resource in the previous reference signal resource group.

[0463] The third reference time domain location is the time domain location of the last reference signal resource in the last first reference signal resource group;

[0464] The second reference signal resource group is a reference signal resource group that includes the second reference signal resource but does not include the first reference signal resource.

[0465] Optionally, when there are multiple reference signal resources in the reference signal resource group, the reference signal resources in the reference signal resource group are configured to transmit reference signals on multiple time units; the first message includes at least one second indication information, which is used to indicate a third time domain offset corresponding to a reference signal resource in the reference signal resource group, and the reference time domain position corresponding to the third time domain offset is the starting time domain position of the reference signal resource group.

[0466] Optionally, the time domain offset refers to the number of time units offset in the effective time unit, and the time domain offset includes at least one of the first time domain offset, the second time domain offset, and the third time domain offset.

[0467] Figure 5B is a schematic diagram of the structure of a terminal according to an embodiment of the present disclosure. Terminal 5200 is used to execute any of the above methods. In some embodiments, as shown in Figure 5B, terminal 5200 may include at least one of a transceiver module 5201, a processing module 5202, etc. In some embodiments, the transceiver module is used to receive a first message sent by a network device and determine time-domain information of a reference signal resource based on the first message; the processing module is used to determine the starting time-domain position for receiving a reference signal on the reference signal resource based on the time-domain information of the reference signal resource. Optionally, the transceiver module is used to execute at least one of the communication steps (e.g., steps S2101, S2201, S2202, but not limited thereto) executed by terminal 101 in any of the above methods, which will not be elaborated here. Optionally, the processing module is used to execute at least one of other steps (e.g., steps S2102, S2103, S2203, S2204, but not limited thereto) executed by terminal 101 in any of the above methods, which will not be elaborated here.

[0468] Optionally, there may be multiple reference signal resources, and multiple reference signal resources may correspond to multiple reference signal resource groups. The number of reference signal resources in a reference signal resource group may be one or more.

[0469] Optionally, the first message includes a first indication information, and the processing module 5202 is further configured to: determine the first time domain offset corresponding to the first reference signal resource group based on the first indication information.

[0470] Optionally, the first message includes a first indication information, and the processing module 5202 is further configured to: determine the first time domain offset corresponding to the other reference signal resource groups besides the first reference signal resource group based on the first indication information.

[0471] Optionally, the first message includes multiple first indication information, and the processing module 5202 is further configured to: determine the first time domain offset corresponding to multiple reference signal resource groups based on the multiple first indication information.

[0472] Optionally, the processing module 5202 is further configured to: determine the starting time domain position of at least one reference signal resource group based on at least one first time domain offset and a reference time domain position, wherein the reference time domain position includes at least one of the following:

[0473] The first reference time domain position is determined by the time domain position of the downlink control information (DCI) and the second time domain offset. The second time domain offset is the time domain offset corresponding to a set of reference signal resources associated with multiple reference signal resources. The second time domain offset is indicated to the terminal by the network device.

[0474] The second reference time domain position is the time domain position of the last reference signal resource in the previous reference signal resource group.

[0475] Optionally, the transceiver module 5201 is further configured to: receive a second message sent by the network device, the second message indicating that one or more first reference signal resources are included among a plurality of reference signal resources, a measurement report of the first reference signal resources is required to be reported, and the measurement report includes a reference signal resource indication (CRI).

[0476] Optionally, the processing module 5202 is further configured to: determine one or more reference signal resources at preset positions in the reference signal resource sequence as the first reference signal resource, wherein the reference signal resource sequence is obtained by arranging according to at least one of the following information:

[0477] Identification of each reference signal resource;

[0478] Priority of each reference signal resource;

[0479] The sequential relationship between the reference signal resources configured in the network device.

[0480] Optionally, the processing module 5202 is further configured to: determine one or more reference signal resources at the beginning of the reference signal resource sequence as the first reference signal resource; or, determine one or more reference signal resources at the end of the reference signal resource sequence as the first reference signal resource.

[0481] Optionally, the first time-domain offset corresponding to the first reference signal resource group is offset from the first reference time-domain position, and the first reference signal resource group is a reference signal resource group including one or more of the first reference signal resources;

[0482] The first reference time domain position is obtained by offsetting the time domain position of the downlink control information (DCI) by a second time domain offset. The second time domain offset is the time domain offset corresponding to a reference signal resource set associated with the plurality of reference signal resources. The second time domain offset is indicated to the terminal by the network device.

[0483] Optionally, the reference time domain position of the first time domain offset corresponding to the first reference signal resource group is the first reference time domain position, and the first reference signal resource group is a reference signal resource group including one or more first reference signal resources; wherein, the first reference time domain position is determined by the time domain position of the downlink control information DCI and the second time domain offset, wherein, the second time domain offset is the time domain offset corresponding to a reference signal resource set associated with multiple reference signal resources, and the second time domain offset is indicated to the terminal by the network device.

[0484] Optionally, the first reference signal resource has a higher priority than the second reference signal resource in transmitting reference signals, wherein the second reference signal resource is a reference signal resource other than the first reference signal resource among a plurality of reference signal resources;

[0485] The first time-domain offset corresponding to the second reference signal resource group is offset from at least one of the following starting positions:

[0486] The second reference time domain position is the time domain position of the last reference signal resource in the previous reference signal resource group.

[0487] The third reference time domain location is the time domain location of the last reference signal resource in the last first reference signal resource group;

[0488] The second reference signal resource group is a reference signal resource group that includes the second reference signal resource.

[0489] Optionally, when there are multiple reference signal resources in the reference signal resource group, the reference signal resources in the reference signal resource group are configured to transmit reference signals on multiple time units; the first message includes at least one second indication information, and the processing module 5202 is further configured to: determine a third time domain offset corresponding to a reference signal resource in a reference signal resource group according to a second indication information, and offset the third offset at the starting time domain position of the reference signal group to obtain the time domain position of the reference signal.

[0490] Optionally, the time domain offset refers to the number of time units offset in the effective time unit, and the time domain offset includes at least one of the first time domain offset, the second time domain offset, and the third time domain offset.

[0491] In some embodiments, the transceiver module may include a transmitting module and / or a receiving module, which may be separate or integrated. Optionally, the transceiver module may be interchangeable with a transceiver.

[0492] In some embodiments, the processing module may be a single module or may include multiple sub-modules. Optionally, the multiple sub-modules may each perform all or part of the steps required by the processing module.

[0493] In some embodiments, the processing module can be replaced by the processor, and the transceiver module can be replaced by the transceiver.

[0494] Figure 6A is a schematic diagram of the structure of a communication device 6100 according to an embodiment of the present 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.

[0495] 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.

[0496] 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, S2201, and S2202, but not limited thereto), and the processor 6101 performs at least one of other steps (e.g., steps S2102, S2103, S2203, and S2204, 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, and interface can be used interchangeably; the terms transmitter, transmitting unit, transmitter, and transmitting circuit can be used interchangeably; and the terms receiver, receiving unit, receiver, and receiving circuit can be used interchangeably.

[0497] 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.

[0498] The communication device 6100 described in the above embodiments may be a network device or a terminal, but the scope of the communication device 6100 described in this disclosure is not limited thereto, and the structure of the communication device 6100 may not be limited by FIG. 6A. The communication device may be a standalone device or a part of a larger device. For example, the communication device may be: (1) a standalone integrated circuit IC, or chip, or chip system or subsystem; (2) a collection of one or more ICs, optionally, the IC collection may also include storage components for storing data, programs and / or instructions; (3) an ASIC, such as a modem; (4) a module that can be embedded in other devices; (5) a receiver, terminal device, smart terminal device, cellular phone, wireless device, handheld device, mobile unit, vehicle device, network device, cloud device, artificial intelligence device, etc.; (6) others, etc.

[0499] Figure 6B is a schematic diagram of the structure of chip 6200 according to an embodiment of the present disclosure. For cases where the communication device 6100 can be a chip or a chip system, the schematic diagram of chip 6200 shown in Figure 6B can be referenced, but is not limited thereto.

[0500] Chip 6200 includes one or more processors 6201. Chip 6200 is used to perform any of the methods described above.

[0501] 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.

[0502] 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, S2201, and S2202, 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 at least one of other steps (e.g., steps S2102, S2103, S2203, and S2204, but not limited thereto).

[0503] 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.

[0504] 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.

[0505] 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.

[0506] 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, Performed by a network device, the method includes: A first message is sent to the terminal, the first message indicating the time domain information of the reference signal resource.

2. The method according to claim 1, characterized in that, When there are multiple reference signal resources, the multiple reference signal resources are configured into multiple reference signal resource groups, and the number of reference signal resources in a reference signal resource group is one or more.

3. The method according to claim 2, characterized in that, The first message includes one or more first indication messages, one of which indicates a first time-domain offset corresponding to one or more reference signal resource groups.

4. The method according to claim 2, characterized in that, The first message includes a first indication information, which is used to indicate a first time-domain offset corresponding to the first reference signal resource group.

5. The method according to claim 2, characterized in that, The first message includes a first indication information, which is used to indicate the first time-domain offset corresponding to the reference signal resource groups other than the first reference signal resource group.

6. The method according to claim 2, characterized in that, The first message includes multiple first indication messages, one of which indicates a first time-domain offset corresponding to one or more reference signal resource groups.

7. The method according to any one of claims 3-6, characterized in that, The first time-domain offset is offset from at least one of the following starting positions: The first reference time domain position is determined by the time domain position of the downlink control information (DCI) and the second time domain offset, wherein the second time domain offset is the time domain offset corresponding to a set of reference signal resources associated with the plurality of reference signal resources; The second reference time domain position is the time domain position of the last reference signal resource in the previous reference signal resource group.

8. The method according to any one of claims 2-6, characterized in that, The method further includes: A second message is sent to the terminal, the second message indicating that the plurality of reference signal resources include one or more first reference signal resources, a measurement report of the first reference signal resources is required to be reported, and the measurement report includes a reference signal resource indication (CRI).

9. The method according to claim 8, characterized in that, The one or more first reference signal resources are reference signal resources at one or more preset positions in a reference signal resource sequence, wherein the reference signal resource sequence is arranged according to at least one of the following information: Identification of each reference signal resource; Priority of each reference signal resource; The sequential relationship between the reference signal resources configured in the network device.

10. The method according to claim 9, characterized in that, The one or more first reference signal resources are the one or more reference signal resources that are the first ones in the reference signal resource sequence; or, The one or more first reference signal resources are the last one or more reference signal resources in the reference signal resource sequence.

11. The method according to claim 8, characterized in that, The first time-domain offset corresponding to the first reference signal resource group is offset from the first reference time-domain position. The first reference signal resource group is a reference signal resource group that includes one or more of the first reference signal resources. The first reference time domain position is obtained by offsetting the time domain position where the downlink control information (DCI) is located by a second time domain offset. The second time domain offset is the time domain offset corresponding to a set of reference signal resources associated with the plurality of reference signal resources.

12. The method according to claim 11, characterized in that, The first reference signal resource has a higher priority than the second reference signal resource, wherein the second reference signal resource is the reference signal resource other than the first reference signal resource among the plurality of reference signal resources; The first time-domain offset corresponding to the second reference signal resource group is offset from at least one of the following starting positions: The second reference time domain position is the time domain position of the last reference signal resource in the previous reference signal resource group; The third reference time domain location is the time domain location of the last reference signal resource in the last first reference signal resource group; The second reference signal resource group is a reference signal resource group that includes the second reference signal resource.

13. The method according to any one of claims 2-12, characterized in that, When there are multiple reference signal resources in the reference signal resource group, the reference signal resources in the reference signal resource group are configured to transmit reference signals on multiple time units; The first message includes at least one second indication information, which is used to indicate a third time-domain offset corresponding to a reference signal resource within the reference signal resource group, wherein the reference time-domain position corresponding to the third time-domain offset is the starting time-domain position of the reference signal resource group.

14. The method according to any one of claims 1-13, characterized in that, The time domain offset refers to the number of time units offset in the effective time unit, and the time domain offset includes at least one of the first time domain offset, the second time domain offset, and the third time domain offset.

15. A communication method, characterized in that, The method, executed by a terminal, includes: Receive a first message sent by a network device, and determine the time domain information of the reference signal resource based on the first message; The starting time-domain position for receiving the reference signal on the reference signal resource is determined based on the time-domain information of the reference signal resource.

16. The method according to claim 15, characterized in that, The number of reference signal resources is multiple, and multiple reference signal resources correspond to multiple reference signal resource groups. The number of reference signal resources in a reference signal resource group is one or more.

17. The method according to claim 16, characterized in that, The first message includes a first indication message; The first time-domain offset corresponding to the first reference signal resource group is determined based on the first indication information.

18. The method according to claim 16, characterized in that, The first message includes a first indication message; The first time-domain offset corresponding to the remaining reference signal resource groups other than the first reference signal resource group is determined based on the first indication information.

19. The method according to claim 16, characterized in that, The first message includes multiple first indication messages; The first time-domain offset corresponding to the multiple reference signal resource groups is determined based on the multiple first indication information.

20. The method according to any one of claims 17-19, characterized in that, The starting time domain position of at least one reference signal resource group is determined based on at least one first time domain offset and a reference time domain position, wherein the reference time domain position includes at least one of the following: The first reference time domain position is determined by the time domain position of the downlink control information (DCI) and the second time domain offset. The second time domain offset is the time domain offset corresponding to a set of reference signal resources associated with the plurality of reference signal resources. The second time domain offset is indicated to the terminal by the network device. The second reference time domain position is the time domain position of the last reference signal resource in the previous reference signal resource group.

21. The method according to any one of claims 16-19, characterized in that, The method further includes: The network device receives a second message indicating that the plurality of reference signal resources include one or more first reference signal resources, a measurement report of the first reference signal resources is required to be reported, and the measurement report includes a reference signal resource indication (CRI).

22. The method according to claim 21, characterized in that, The method further includes: The reference signal resources at one or more preset positions in the reference signal resource sequence are determined as the first reference signal resource, wherein the reference signal resource sequence is obtained by arranging the reference signal resources according to at least one of the following information: Identification of each reference signal resource; Priority of each reference signal resource; The sequential relationship between the reference signal resources configured in the network device.

23. The method according to claim 22, characterized in that, The step of determining one or more reference signal resources at preset positions in the reference signal resource sequence as the first reference signal resource includes: The first one or more reference signal resources in the reference signal resource sequence are identified as the first reference signal resource; or... The last one or more reference signal resources in the reference signal resource sequence are identified as the first reference signal resource.

24. The method according to claim 21, characterized in that, The first time-domain offset corresponding to the first reference signal resource group is offset from the first reference time-domain position. The first reference signal resource group is a reference signal resource group that includes one or more of the first reference signal resources. The first reference time domain position is obtained by offsetting the time domain position of the downlink control information (DCI) by a second time domain offset. The second time domain offset is the time domain offset corresponding to a reference signal resource set associated with the plurality of reference signal resources. The second time domain offset is indicated to the terminal by the network device.

25. The method according to claim 24, characterized in that, The first reference signal resource has a higher priority than the second reference signal resource, wherein the second reference signal resource is the reference signal resource other than the first reference signal resource among the plurality of reference signal resources; The first time-domain offset corresponding to the second reference signal resource group is offset from at least one of the following starting positions: The second reference time domain position is the time domain position of the last reference signal resource in the previous reference signal resource group; The third reference time domain location is the time domain location of the last reference signal resource in the last first reference signal resource group; The second reference signal resource group is a reference signal resource group that includes the second reference signal resource.

26. The method according to any one of claims 17-25, characterized in that, When there are multiple reference signal resources in the reference signal resource group, the reference signal resources in the reference signal resource group are configured to transmit reference signals on multiple time units; The first message includes at least one second indication information. A third time-domain offset corresponding to a reference signal resource within a reference signal resource group is determined based on the second indication information. The time-domain position of the reference signal is obtained by offsetting the third offset at the starting time-domain position of the reference signal group.

27. The method according to any one of claims 15-26, characterized in that, The time domain offset refers to the number of time units offset in the effective time unit, and the time domain offset includes at least one of the first time domain offset, the second time domain offset, and the third time domain offset.

28. A communication method, characterized in that, Performed by a communication system, which includes network devices and terminals, the method includes: The network device sends a first message to the terminal, the first message indicating the time domain information of the reference signal resources; The terminal determines the starting time-domain position for receiving the reference signal on the reference signal resource based on the time-domain information of the reference signal resource.

29. A communication device, characterized in that, The communication device is used to perform the communication method according to any one of claims 1-14 and 15-27.

30. A communication system, characterized in that, The device includes a network device and a terminal, wherein the network device is configured to implement the communication method of any one of claims 1-14, and the terminal is configured to implement the communication method of any one of claims 15-27.

31. A storage medium storing instructions, characterized in that, When the instructions are executed on the communication device, the communication method of any one of claims 1-14 and 15-27 is performed.

32. A program product comprising at least one of a program and instructions, characterized in that, When at least one of the programs or instructions is executed by the communication device, it implements the steps of the communication method according to any one of claims 1-14 and 15-27.

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