Information determination method and apparatus, communication device, and readable storage medium

Abstract

The application discloses an information determination method and device, a communication device and a readable storage medium, and belongs to the technical field of communication. The information determination method of the application comprises the following steps: a communication device determines whether a second resource can be used for mapping a first object according to first signaling and / or a preset rule; wherein the second resource is a resource occupied by a channel state information reference signal (CSI-RS) located on a first resource or a first resource set, and the first object comprises at least one of the following: a first channel and a first signal.

Description

Technical Field

[0001] This application belongs to the field of communication technology, specifically relating to an information determination method, apparatus, communication equipment, and readable storage medium. Background Technology

[0002] Channel State Information (CSI) measurement and reporting is a crucial technology for improving data transmission performance in communication systems. Terminals report CSI to the base station by measuring reference signals, such as Channel State Information-Reference Signals (CSI-RS). Using periodic or semi-persistent CSI-RS for CSI measurement allows terminals and base stations to stably monitor channel quality and obtain stable and reliable CSI. However, since all periodic or semi-persistent CSI-RS cannot be used for resource mapping of other channels or signals, it results in significant reference signal overhead for CSI measurement. Summary of the Invention

[0003] This application provides an information determination method, apparatus, communication device, and readable storage medium, which can solve the problem of relatively large reference signal overhead caused by current CSI measurements.

[0004] Firstly, an information determination method is provided, including:

[0005] The communication device determines whether a second resource can be used to map a first object based on a first signaling and / or a preset rule; wherein the second resource is the resource occupied by the Channel State Information Reference Signal (CSI-RS) located on the first resource or the first resource set, and the first object includes at least one of the following: a first channel and a first signal.

[0006] Secondly, an information determination method is provided, including:

[0007] The communication device determines the reference resource associated with the CSI report in a first time domain unit, wherein the first time domain unit includes at least one time domain unit located at least N time domain units after a third time domain resource, the third time domain resource being the time domain resource where the uplink channel carrying the CSI report is located, and N being a positive integer.

[0008] Thirdly, an information determining device is provided, comprising:

[0009] The first determining module is configured to determine whether a second resource can be used to map a first object based on a first signaling and / or a preset rule; wherein the second resource is a resource occupied by a channel state information reference signal (CSI-RS) located on a first resource or a set of first resources, and the first object includes at least one of the following: a first channel and a first signal.

[0010] Fourthly, an information determining device is provided, comprising:

[0011] The second determining module is used to determine the reference resource associated with the CSI report in a first time domain unit, wherein the first time domain unit includes at least one time domain unit located at least N time units after the third time domain resource, the third time domain resource being the time domain resource where the uplink channel carrying the CSI report is located, and N being a positive integer.

[0012] Fifthly, a communication device is provided, the communication device including a processor and a memory, the memory storing a program or instructions executable on the processor, the program or instructions, when executed by the processor, implementing the steps of the method as described in the first aspect, and / or implementing the steps of the method as described in the second aspect.

[0013] In a sixth aspect, a communication device is provided, including a processor and a communication interface, wherein the processor is configured to determine whether a second resource can be used to map a first object according to a first signaling and / or a preset rule; wherein the second resource is a resource occupied by a Channel State Information Reference Signal (CSI-RS) located on a first resource or a set of first resources, and the first object includes at least one of the following: a first channel and a first signal; and / or, the processor is configured to determine that a reference resource associated with a CSI report is located in a first time domain unit, wherein the first time domain unit includes at least one time domain unit located at least N time units after a third time domain resource, the third time domain resource being the time domain resource where the uplink channel carrying the CSI report is located, and N being a positive integer.

[0014] A seventh aspect provides a communication system comprising: a terminal and a network-side device, wherein the terminal and the network-side device are configured to perform the steps of the information determination method as described in the first aspect, and / or perform the steps of the method as described in the second aspect.

[0015] Eighthly, a readable storage medium is provided, on which a program or instructions are stored, which, when executed by a processor, implement the steps of the method as described in the first aspect, and / or implement the steps of the method as described in the second aspect.

[0016] In a ninth aspect, a chip is provided, the chip including a processor and a communication interface coupled to the processor, the processor being configured to run a program or instructions to implement the steps of the method as described in the first aspect, and / or to implement the steps of the method as described in the second aspect.

[0017] In a tenth aspect, a computer program / program product is provided, the computer program / program product being stored in a storage medium, the computer program / program product being executed by at least one processor to implement the steps of the method as described in the first aspect, and / or to implement the steps of the method as described in the second aspect.

[0018] In this embodiment, it can be determined whether a second resource can be used to map a first object based on a first signaling and / or preset rules. The second resource is a resource occupied by CSI-RS located on a first resource or a set of first resources. The first object includes at least one of the following: a first channel and a first signal. Therefore, resources occupied by CSI-RS on some resources can be used for other channels and / or signals, thereby reducing the overhead of the reference signal CSI-RS and improving data channel transmission performance when using periodic or semi-persistent CSI-RS for CSI measurements. Attached Figure Description

[0019] Figure 1 This is a block diagram of a wireless communication system applicable to embodiments of this application;

[0020] Figure 2 This is a flowchart of an information determination method provided in an embodiment of this application;

[0021] Figure 3A This is one of the schematic diagrams of base station indication signaling in the examples of this application;

[0022] Figure 3B This is one of the schematic diagrams of base station indication signaling in the examples of this application;

[0023] Figure 3C This is one of the schematic diagrams of base station indication signaling in the examples of this application;

[0024] Figure 4 This is a flowchart of an information determination method provided in an embodiment of this application;

[0025] Figure 5 This is one of the time slot diagrams in the embodiments of this application;

[0026] Figure 6 This is the second time slot diagram in the embodiments of this application;

[0027] Figure 7 This is a schematic diagram of the structure of an information determination device provided in an embodiment of this application;

[0028] Figure 8 This is a schematic diagram of the structure of an information determination device provided in an embodiment of this application;

[0029] Figure 9 This is a schematic diagram of the structure of a communication device provided in an embodiment of this application;

[0030] Figure 10 This is a schematic diagram of the structure of a terminal provided in an embodiment of this application;

[0031] Figure 11 This is a schematic diagram of the structure of a network-side device provided in an embodiment of this application. Detailed Implementation

[0032] The technical solutions of the embodiments of this application will be clearly described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this application. All other embodiments obtained by those skilled in the art based on the embodiments of this application are within the scope of protection of this application.

[0033] The terms "first," "second," etc., used in the specification and claims of this application are used to distinguish similar objects and not to describe a specific order or sequence. It should be understood that such terms can be used interchangeably where appropriate so that embodiments of this application can be implemented in orders other than those illustrated or described herein, and the objects distinguished by "first" and "second" are generally of the same class, not limited in number; for example, a first object can be one or more. Furthermore, in the specification and claims, "and / or" indicates at least one of the connected objects, and the character " / " generally indicates that the preceding and following objects are in an "or" relationship.

[0034] It is worth noting that the technologies described in this application are not limited to Long Term Evolution (LTE) / LTE-Advanced (LTE-A) systems, but can also be used in other wireless communication systems, such as Code Division Multiple Access (CDMA), Time Division Multiple Access (TDMA), Frequency Division Multiple Access (FDMA), Orthogonal Frequency Division Multiple Access (OFDMA), Single-carrier Frequency Division Multiple Access (SC-FDMA), and other systems. The terms "system" and "network" in this application are often used interchangeably, and the described technologies can be used with the systems and radio technologies mentioned above, as well as with other systems and radio technologies. The following description describes New Radio (NR) systems for illustrative purposes, and NR terminology is used in most of the following description; however, these technologies can also be applied to applications beyond NR systems, such as 6th generation (6G) radio systems. th Generation 6G communication system.

[0035] Figure 1This diagram illustrates a block diagram of a wireless communication system applicable to embodiments of this application. The wireless communication system includes a terminal 11 and a network-side device 12. Terminal 11 can be a mobile phone, tablet computer, laptop computer, personal digital assistant (PDA), handheld computer, netbook, ultra-mobile personal computer (UMPC), mobile internet device (MID), augmented reality (AR) / virtual reality (VR) device, robot, wearable device, vehicle-mounted device (VUE), pedestrian terminal (PUE), smart home (home devices with wireless communication capabilities, such as refrigerators, televisions, washing machines, or furniture), game console, personal computer (PC), ATM, or self-service machine, etc. Wearable devices include: smartwatches, smart bracelets, smart headphones, smart glasses, smart jewelry (smart bracelets, smart chains, smart rings, smart necklaces, smart anklets, smart anklets, etc.), smart wristbands, smart clothing, etc. It should be noted that the specific type of terminal 11 is not limited in this embodiment. Network-side equipment 12 may include access network equipment or core network equipment. Access network equipment 12 may also be referred to as radio access network equipment, radio access network (RAN), radio access network function, or radio access network unit. Access network equipment 12 may include base stations, WLAN access points, or WiFi nodes, etc. Base stations may be referred to as Node B, evolved Node B (eNB), access point, base transceiver station (BTS), radio base station, radio transceiver, Basic Service Set (BSS), Extended Service Set (ESS), home B node, home evolved B node, Transmitting Receiving Point (TRP), or any other suitable term in the field, as long as the same technical effect is achieved. The base station is not limited to specific technical terms. It should be noted that in this application embodiment, only a base station in an NR system is used as an example for description, and the specific type of base station is not limited.

[0036] Optionally, the scenarios applicable to the embodiments of this application may include, but are not limited to, CSI measurement and reporting, CSI prediction and reporting, etc. By using artificial intelligence (AI) and / or machine learning (ML) methods, the terminal can predict the CSI at one or more future times by measuring the transmitted CSI-RS, and report the predicted CSI to the base station, so that the base station can obtain the corresponding future CSI, thereby overcoming the performance loss caused by channel time-varying.

[0037] Optionally, the Channel State Information-Reference Signal (CSI-RS) in this embodiment can be either periodic or semi-persistent CSI-RS. Periodic or semi-persistent CSI-RS can be transmitted periodically as configured by higher-layer signaling. The higher-layer signaling may include, for example, Radio Resource Control (RRC) signaling, Medium Access Control (MEC) signaling, etc. Periodic or semi-persistent CSI-RS is a commonly used time-domain type of CSI-RS and can be used for non-periodic, semi-persistent, or periodic CSI reporting. Using periodic or semi-persistent CSI-RS for CSI prediction enables terminals and base stations to stably monitor channel quality and obtain stable and reliable CSI.

[0038] The information determination method, apparatus, communication device, and readable storage medium provided in this application will be described in detail below with reference to the accompanying drawings and through some embodiments and application scenarios.

[0039] Please see Figure 2 , Figure 2 This is a flowchart illustrating an information determination method provided in an embodiment of this application. The method is applied to a communication device, which may be a terminal or a network-side device, such as a base station. Figure 2 As shown, the method includes the following steps:

[0040] Step 21: The communication device determines whether the second resource can be used to map the first object based on the first signaling and / or preset rules.

[0041] In this embodiment, the second resource is the resource occupied by CSI-RS located on the first resource or the first resource set. The first object includes at least one of the following: a first channel and a first signal. The above-mentioned second resource can be used to map the first object, which can be understood as: canceling the transmission and measurement of CSI-RS on the second resource, and using the second resource to transmit the first object.

[0042] Optionally, the aforementioned first signaling can be signaling from network-side devices, such as Downlink Control Information (DCI) or Media Access Control Control Element (MAC CE). The aforementioned first signaling can be used to indicate at least one of the following:

[0043] The resources occupied by CSI-RS cannot be used to map the first channel;

[0044] The resources occupied by CSI-RS cannot be used to map the first signal;

[0045] The resources occupied by CSI-RS can be used to map the first channel;

[0046] The resources occupied by CSI-RS can be used to map the first signal.

[0047] Optionally, the first channel mentioned above may include, but is not limited to, at least one of the following: Physical Downlink Shared Channel (PDSCH), Physical Uplink Shared Channel (PUSCH), etc.

[0048] Optionally, the first signal mentioned above may include, but is not limited to, zero power (ZP) CSI-RS, etc.

[0049] Optionally, the aforementioned preset rules can be pre-agreed, protocol-defined, and / or configured on the network side. For example, network-side devices, such as base stations, can send the preset rules to the terminal via signaling.

[0050] For example, the aforementioned preset rule could be: resources occupied by CSI-RS located on the first resource or the first resource set can be used to map the first object. Thus, based on this preset rule, it can be directly determined that resources occupied by CSI-RS located on the first resource or the first resource set can be used to map the first object. Furthermore, resources occupied by CSI-RS not located on the first resource or the first resource set cannot be used to map the first object.

[0051] For example, upon receiving a first signaling message indicating that the resources occupied by the CSI-RS located on the first resource or the first resource set are available for mapping the first object, it can be determined that the resources occupied by the CSI-RS located on the first resource or the first resource set are available for mapping the first object. Conversely, if the received first signaling message indicates that the resources occupied by the CSI-RS located on the first resource or the first resource set are not available for mapping the first object, it is determined that the resources occupied by the CSI-RS located on the first resource or the first resource set are not available for mapping the first object.

[0052] The information determination method of this application embodiment can determine whether a second resource can be used to map a first object based on a first signaling and / or preset rules. The second resource is a resource occupied by CSI-RS located on a first resource or a set of first resources. The first object includes at least one of the following: a first channel and a first signal. Therefore, resources occupied by CSI-RS on some resources can be used for other channels and / or signals, thereby reducing the overhead of the reference signal CSI-RS and improving the data channel transmission performance when using periodic or semi-continuous CSI-RS for CSI measurements.

[0053] For example, CSI prediction allows the base station to obtain the channel state at future times by predicting and reporting CSI at future times through the terminal. For periodic or semi-persistent CSI, after the terminal predicts the CSI at a certain future time, CSI-RS at certain CSI-RS transmission times (or transmission periods) are no longer needed. Therefore, CSI-RS transmission or measurement on these resources can be cancelled, that is, the resources occupied by CSI-RS on these resources can be mapped to other channels and / or signals to reduce CSI-RS overhead and terminal complexity.

[0054] In some embodiments, the terminal can cancel the reception or measurement of CSI-RS resource elements (REs) on certain resources through predefined rules or base station signaling. The canceled CSI-RS REs can be used to map resources of other channels or signals, such as PDSCH or PUSCH RE mapping, or converted into signals such as ZP CSI-RS.

[0055] In some embodiments, the base station's indication signaling (e.g., DCI or MAC CE) can indicate at least one of the following three states for CSI-RS RE on certain resources:

[0056] - Status 1: CSI-RS RE is not cancelled, meaning CSI-RS RE cannot be used for resource mapping of PDSCH or other channels (such as PUSCH) and signals;

[0057] -State 2: CSI-RS RE is cancelled. CSI-RS RE can be used for resource mapping of PDSCH or other channels (such as PUSCH);

[0058] - State 3: CSI-RS RE is cancelled, and CSI-RS RE is converted to ZP CSI-RS RE; in addition, CSI-RS RE can also be converted to other signal resources, such as interference measurement resources, including at least one of the following resources: Channel State Information-Interference Measurement (CSI-IM), NZP CSI-RS-based interference measurement, etc.

[0059] In a further embodiment, the candidate values ​​for the base station indication signaling may include only state one or state two. Furthermore, whether state three is included can be determined through base station configuration signaling or terminal capability signaling.

[0060] For example, an example of base station indication signaling is as follows: Figure 3A , Figure 3B and Figure 3C As shown. In this example, UE1 predicts the CSI at future times using an AI / ML algorithm, so the base station can cancel some CSI-RS transmissions and measurements for UE1. To save CSI-RS overhead, UE1, UE2, and UE3 share a single CSI-RS configuration. Therefore, canceling UE1's CSI-RS will affect UE2 and UE3. Thus, in this example:

[0061] 1) such as Figure 3A As shown, the base station instructs the CSI-RS RE canceled by UE1 to be used for mapping PDSCH RE, in order to increase the transmission performance of UE1's PDSCH.

[0062] 2) such as Figure 3B As shown, the CSI-RS period of UE2 is configured to be longer than that of UE1 and UE3, for example, twice the CSI-RS period of UE1 and UE3. This allows UE2 to be configured with periodic ZPCSI-RS resources to cover the CSI-RS REs in locations where UE2 does not receive CSI-RS, thus reducing interference from these CSI-RS resources to UE2. In this case, the CSI-RS REs cancelled by UE1 for PDSCH mapping have no impact on UE2.

[0063] 3) UE3 originally shared CSI-RS resources with UE1 at the same cycle. The base station's instruction to use UE1's CSI-RS RE for PDSCH RE mapping will affect the CSI-RS measurements of UE3. In this case, if... Figure 3CAs shown, this indication signaling can simultaneously convert UE3's CSI-RS to ZP CSI-RS to eliminate the impact of UE1's PDSCH transmission on UE3's CSI-RS measurement.

[0064] Based on the above analysis, by using base station indication signaling that includes the above three states, it is possible to reduce the RS overhead of the target UE, increase the PDSCH transmission resources of the target UE, and not affect the technical performance of other UEs.

[0065] In this application embodiment, the first resource or first resource set mentioned above may include, but is not limited to, at least one of the following: CSI-RS transmission timing, CSI-RS period, CSI-RS resource, orthogonal frequency division multiplexing (OFDM) symbol containing CSI-RS, time slot resource containing CSI-RS, frequency domain resource containing CSI-RS, first channel resource scheduled by network-side equipment, etc.

[0066] Optionally, the aforementioned first resource or first resource set can be determined based on at least one of the following: second signaling from network-side equipment (e.g., a base station), or predefined rules. For example, the first resource or first resource set is the time window indicated by the second signaling, or the CSI-RS transmission timing selected by the second signaling in a certain time resource set or time window, containing OFDM symbols of CSI-RS or time slot resources containing CSI-RS, or resources selected by the second signaling within one or more resource sets.

[0067] Optionally, the second signaling may include at least one of the following: higher-layer signaling, downlink control information (DCI). The higher-layer signaling may be, for example, RRC signaling, MAC signaling, etc.

[0068] Optionally, the aforementioned first resource or first resource set may include: resources between the first time-domain resource and the second time-domain resource (e.g., CSI-RS transmission timing); wherein, the first time-domain resource includes at least one of the following: 1) the time unit where the DCI triggering the CSI report is located; 2) the time unit where the uplink channel carrying the CSI report is located; 3) S time units preceding the time unit where the uplink channel carrying the CSI report is located, where S is a positive integer. The second time-domain resource includes at least one of the following: 1) the time unit where the uplink channel carrying the CSI report is located; 2) the time unit where the reference resource corresponding to the CSI report is located, or X time units following the time unit where the uplink channel carrying the CSI report is located (e.g., a time slot or OFDM symbol), where X is a positive integer; 3) the time unit corresponding to the CSI reported by the CSI report. The time unit is, for example, a time slot or OFDM symbol.

[0069] In some embodiments, the aforementioned preset rule includes: the resources occupied by CSI-RS on the resources between the first time-domain resources and the second time-domain resources can be used to map the first object.

[0070] In some embodiments, the first time-domain resource is the time unit where the DCI that triggers the CSI report is located, and the second time-domain resource is one of the following: the time unit where the uplink channel carrying the CSI report is located, the time unit where the reference resource corresponding to the CSI report is located, or the time unit corresponding to the CSI reported by the CSI report.

[0071] In other embodiments, the first time-domain resource is the time unit where the uplink channel carrying the CSI report is located, and the second time-domain resource is one of the following: the time unit where the reference resource corresponding to the CSI report is located, or the time unit corresponding to the CSI reported in the CSI report.

[0072] In other embodiments, the first time-domain resource is S time units preceding the time unit of the uplink channel carrying the CSI report, while the second time-domain resource is one of the following: the time unit of the uplink channel carrying the CSI report, the time unit of the reference resource corresponding to the CSI report, or the time unit corresponding to the CSI reported in the CSI report.

[0073] Optionally, for resources in the first resource or the first resource set, canceling the resource occupied by CSI-RS at what granularity (e.g., CSI-RS RE) can include, but is not limited to, at least one of the following:

[0074] 1) CSI-RS can be cancelled at the granularity of CSI-RS transmission timing. One or more CSI-RS REs on one CSI-RS transmission timing can be cancelled at a time. That is, one or more CSI-RS REs on one CSI-RS transmission timing can be used to map other channels or signals.

[0075] 2) CSI-RS can be cancelled at the CSI-RS cycle level. One or more CSI-RS REs in one CSI-RS cycle can be cancelled at a time. That is, one or more CSI-RS REs in one CSI-RS cycle can be used to map other channels or signals.

[0076] 3) CSI-RS are cancelled at the CSI-RS resource level. One CSI-RS RE on one or more CSI-RS resources in one or more CSI-RS sets is cancelled at a time. That is, one or more CSI-RS REs on one or more CSI-RS resources can be used to map other channels or signals.

[0077] 4) CSI-RS are cancelled at the OFDM symbol level. One or more OFDM symbols can be cancelled at a time, meaning that one or more OFDM symbols can be used to map other channels or signals.

[0078] 5) CSI-RS can be cancelled at the time slot level. One or more CSI-RSREs on one time slot can be cancelled at a time. That is, one or more CSI-RSREs on one time slot can be used to map other channels or signals.

[0079] 6) CSI-RS can be cancelled at the frequency domain resource level. One or more CSI-RS REs on one frequency domain resource can be cancelled at a time, meaning that one or more CSI-RS REs on one or more frequency domain resources can be used to map other channels or signals. The frequency domain resources can be sub-bands, resource blocks (RBs), resource block groups (RBGs), REGs, etc.

[0080] 7) CSI-RS are cancelled at the granularity of PDSCH allocation resources. Each cancellation of a CSI-RS RE contained on a scheduled PDSCH resource means that the CSI-RS RE contained on that scheduled PDSCH resource can be used to map other channels or signals.

[0081] It should be noted that 1) to 7) above can be used in combination. For example, canceling one or more CSI-RS REs on one or more CSI-RS transmission times at one time, or canceling one or more CSI-RS REs on one or more time slots (or OFDM symbols) at one time.

[0082] Furthermore, regarding which locations' resources need to have their CSI-RS REs removed, the specific methods may include at least one of the following:

[0083] (1) The cancelled CSI-RS RE is located within a certain time window, for example, cancelling all CSI-RS REs on all CSI-RS transmission opportunities (or periods, OFDM symbols, timeslots) within a certain time window. The time window can be determined by base station signaling or agreed rules, and its start time position, length of time window or end time position can be determined.

[0084] (2) The cancelled CSI-RS RE is located on a portion of time resources selected from a certain time window or time resource set. For example, after determining a certain time window, a portion of the transmission opportunities (or periods, OFDM symbols, time slots) included in the time window is selected through base station signaling (e.g., bitmap signaling) and the CSI-RS RE on the selected portion of resources is cancelled.

[0085] (3) The canceled CSI-RS RE is a CSI-RS RE selected from one or more sets of configured CSI-RS resources on a subset of CSI-RS resources.

[0086] (4) The canceled CSI-RS RE is the CSI-RS RE contained in the PDSCH resource of the base station signaling scheduling.

[0087] It should be noted that (1) to (4) above can be used in combination. The base station signaling can be higher-layer signaling (e.g., RRC or MAC signaling) or physical-layer signaling (e.g., DCI).

[0088] Furthermore, the aforementioned CSI-RS cancellation method can also be determined by predefined rules. For example, for a certain CSI report (e.g., a CSI report of a specific codebook type or feedback type), the CSI-RS RE between the start time position and the end time position is cancelled, where the start time position is at least one of the following: 1) the time slot or OFDM symbol where the DCI that triggered the CSI report is located; 2) the time slot or OFDM symbol where the uplink channel carrying the CSI report is located; 3) S time slots or OFDM symbols before the time slot or OFDM symbol where the uplink channel carrying the CSI report is located; the end time position is at least one of the following: 1) the time slot or OFDM symbol where the uplink channel carrying the CSI report is located; 2) the time slot or OFDM symbol where the CSI reference resource corresponding to the CSI report is located, or X time slots or OFDM symbols after the time slot or OFDM symbol where the uplink channel carrying the CSI report is located, where X is a positive integer; 3) the time slot or OFDM symbol corresponding to the CSI reported in the CSI report.

[0089] Optionally, the first signaling described above may include at least one of the following:

[0090] 1) Uplink scheduling DCI, which is a DCI used to schedule uplink channels. This only means that the DCI can be used to schedule uplink channels, and does not mean that the DCI actually schedules the transmission of an uplink channel.

[0091] In this 1), the mapping status of the resources occupied by CSI-RS can be indicated by at least one of the following in the uplink scheduling DCI: a dedicated domain, a CSI request domain, etc. That is, for the mapping status of the resources occupied by CSI-RS, a dedicated domain indication can be added to the uplink scheduling DCI, an existing domain indication can be reinterpreted, or it can be co-encoded with an existing domain indication, such as a CSI request domain.

[0092] Furthermore, when the mapping status of resources occupied by CSI-RS is indicated through the CSI request field in the uplink scheduling DCI, the mapping status of resources occupied by CSI-RS can be configured in the CSI trigger states. In addition, the aforementioned time window information, resource information, etc., can also be configured using the uplink scheduling DCI.

[0093] 2) Downlink scheduling DCI, which is a DCI used to schedule downlink channels. This only means that the DCI can be used to schedule downlink channels, and does not mean that the DCI actually schedules the transmission of a downlink channel.

[0094] In section 2), the mapping status of resources occupied by CSI-RS can be indicated by at least one of the following in the downlink scheduling DCI: dedicated domain, resource allocation domain, and ZP CSI-RS indication domain. That is, for the mapping status of resources occupied by CSI-RS, a dedicated domain indication can be added to the downlink scheduling DCI, an existing domain indication can be reinterpreted, or it can be co-encoded with an existing domain indication, such as a resource allocation domain or a ZP CSI-RS indication domain.

[0095] Furthermore, when the mapping status of resources occupied by CSI-RS is indicated by the resource allocation field in the downlink scheduling DCI, the mapping status of resources occupied by CSI-RS can be configured in the resource allocation status; or, when the mapping status of resources occupied by CSI-RS is indicated by the ZP CSI-RS indication field in the downlink scheduling DCI, the mapping status of resources occupied by CSI-RS can be configured in the ZP CSI-RS status. In addition, the downlink scheduling DCI can also be used to configure the aforementioned time window information, resource information, etc.

[0096] 3) Group common DCI.

[0097] In section 3), the mapping status of resources occupied by CSI-RS can be indicated through a dedicated field in the group common DCI. In other words, the mapping status of resources occupied by CSI-RS can be indicated by a new group common DCI format through a dedicated field.

[0098] 4) Media Access Control Unit (MAC CE).

[0099] It should be noted that the mapping status of the resources occupied by the CSI-RS can be selected as at least one of the following: the resources occupied by the CSI-RS cannot be used to map the first channel; the resources occupied by the CSI-RS cannot be used to map the first signal; the resources occupied by the CSI-RS can be used to map the first channel; the resources occupied by the CSI-RS can be used to map the first signal.

[0100] In this embodiment, the cancellation of CSI-RS REs indicated by the base station requires a certain application time limit. For example, CSI-RS REs located at least F time slots or OFDM symbols after the time slot or OFDM symbol where the base station indicated signaling is located can be used to map other channels or signals. That is, the aforementioned second resource is located after the time unit where the first signaling is located, and is at least F time units apart from the time unit where the first signaling is located, where F is a positive integer. The time units include, for example, time slots or OFDM symbols.

[0101] Optionally, if the cancelled CSI-RS is a semi-persistent CSI-RS, the terminal does not receive the first signaling during the first time period, or the terminal ignores the first signaling; in this case, the network-side device may send the first signaling. Alternatively, the network-side device may not send the first signaling during the first time period. The starting point of the first time period is the sending time of the third signaling or the feedback time of the third signaling, where the third signaling is the signaling that activates the semi-persistent CSI-RS, and the duration of the first time period is G time units, where G is a positive integer.

[0102] For example, for semi-persistent CSI-RS, the terminal cannot receive base station indication signaling for CSI-RS cancellation for a period of G after the signaling activating semi-persistent CSI-RS (e.g., MAC CE signaling or DCI signaling) is issued or the corresponding ACK / NACK is sent. In one example, G is an integer number of OFDM symbols or time slots; in another example, G is a duration in milliseconds, such as 3 ms. Similarly, the UE cannot receive base station indication for CSI-RS cancellation for a period of G after the signaling deactivating semi-persistent CSI-RS (e.g., MAC CE signaling or DCI signaling) is issued or the corresponding ACK / NACK is sent. In one example, G is an integer number of OFDM symbols or time slots; in another example, G is a duration in milliseconds, such as 3 ms.

[0103] Optionally, the terminal can report information about the recommended first resource or the first set of resources so that the network-side device can be informed and perform efficient configuration. For example, the terminal can report information about the CSI-RS REs to be eliminated in a CSI report, such as CSI-RS resource or port information, or the time window or resource location information of the CSI-RS REs to be eliminated.

[0104] Optionally, since the above-mentioned CSI-RS elimination can affect the CSI processing unit (CPU) occupancy and active CSI-RS resource (such as port) calculation of the terminal, the CSI-RS occupancy resources (such as ports) that can be used to map the first object, i.e. the canceled CSI-RS resources (such as ports), are not included in the CSI processing unit (CPU) occupancy, or are not included in the active CSI-RS resources (such as ports).

[0105] In some further examples, the CSI-RS in the above-mentioned CSI-RS cancellation methods can refer not only to CSI-RS used for CSI feedback, but also specifically to CSI-RS used for performance monitoring, CSI-RS used for quasi-colocation (QCL) sources, or CSI-RS used for model lifecycle management, etc.

[0106] Optionally, the above-mentioned CSI-RS cancellation method can be used for various CSI report types, such as Channel Quality Indicator (CQI) report, Precoding Matrix Indicator (PMI) report, Channel State Information Reference Signal Resource Index (CSI-RS) report, Layer 1 Reference Signal Receiving Power (L1-RSRP) report, Layer 1 Reference Signal Received Quality (L1-RSRQ) report, Rank Indicator (RI) report, Layer Indicator (LI) report, etc.

[0107] Furthermore, since CSI reference resources are defined on time slots prior to the CSI report, they are not suitable for the characteristics of CSI prediction, i.e., the reported CSI should predict the CSI at future times. Therefore, this application proposes a method for determining CSI reference resources, wherein the CSI reference resources associated with the CSI report are located at least N time units after the time domain resources of the uplink channel carrying the CSI report, where N is a positive integer, and the time units are, for example, time slots or OFDM symbols. Details are as follows.

[0108] Please see Figure 4 , Figure 4 This is a flowchart illustrating an information determination method provided in an embodiment of this application. The method is applied to a communication device, which may be a terminal or a network-side device, such as a base station. Figure 4 As shown, the method includes the following steps:

[0109] Step 41: The communication device determines the reference resource associated with the CSI report in the first time domain unit.

[0110] In this embodiment, the first time-domain unit includes at least one time-domain unit located at least N time units after the third time-domain resource. The third time-domain resource is the time-domain resource where the uplink channel carrying the CSI report is located, and N is a positive integer. That is, the first time-domain unit is located after the third time-domain resource and is separated from the third time-domain resource by at least N time units. The time unit is, for example, a time slot or an OFDM symbol.

[0111] This allows CSI reference resources to be placed on a time-domain unit following the associated CSI report, thus fitting the characteristics of CSI forecasting, i.e., the reported CSI predicts the CSI at future times.

[0112] Optionally, the aforementioned time-domain unit may include, but is not limited to, at least one of the following: time slot, time slot group, OFDM symbol, OFDM symbol group, etc. Wherein, the time slot group consists of multiple consecutive or equally spaced time slots, and the OFDM symbol group consists of multiple consecutive or equally spaced OFDM symbols. For example, when the first time-domain unit is a time slot, the interval between the time slot and the CSI report is N time slots; or, when the first time-domain unit is a time slot group, the interval between the first time slot of the time slot group and the CSI report is N time slots, where the N time slots can be multiple consecutive time slot units or multiple time slot units evenly spaced by an integer number of time slots. For example, when the first time-domain unit is an OFDM symbol, the interval between the OFDM symbol and the CSI report is N OFDM symbols; or, when the first time-domain unit is an OFDM symbol group, the interval between the first OFDM symbol of the OFDM symbol group and the CSI report is N OFDM symbols. The N OFDM symbols can be multiple consecutive OFDM symbol units, or multiple OFDM symbol units evenly spaced with an integer number of OFDM symbols.

[0113] Optionally, the value of N can be determined by the fourth signaling and / or terminal capability reporting signaling of the network-side device. The fourth signaling may include at least one of the following: higher-layer signaling, DCI, etc. The higher-layer signaling may be, for example, RRC signaling, MAC signaling, etc.

[0114] For example, the value of N can be determined by triggering a CSI DCI. Furthermore, the value of N can be determined by at least one of the following in a CSI DCI trigger: a private field, or a CSI request field. That is, the value of N can be determined by a private field and / or a CSI request field in a CSI DCI trigger.

[0115] Understandably, CSI prediction allows the terminal to report a CSI at a future time, reducing the impact of channel time-varying characteristics on the base station's application of CSI to acquire precoding or beamforming. In this case, the CSI reported by the terminal should correspond to the downlink transmission at a future time. Therefore, the CSI reference resource should be defined at a future time, meaning the CSI reference resource associated with the CSI report should be located N time slots or OFDM symbols after the time domain resource of the uplink channel carrying the CSI report.

[0116] for example Figure 5 As shown, Figure 5An example of the definition of reference resources under CSI prediction is given. For a CSI report on slot n, the CSI reference resource is defined as the predicted slot, i.e., slot n+N, where the value of N can be determined by base station signaling or terminal capability signaling, for example, by indicating the value of N through higher-layer signaling or DCI. In other examples, the CSI reported by the terminal can be used to predict the channel state at multiple future time points. The CSI reference resource can be defined over multiple time-domain units for a period of time after the CSI report, where the time-domain units can be at least one of slots, slot groups, OFDM symbols, and OFDM symbol groups.

[0117] Furthermore, the starting position corresponding to the N value, i.e., the definition of slot (or OFDM symbol) n, can be earlier than the slot n where the CSI report is located. For example, n is N0 slots (or OFDM symbols) before the slot where the CSI report is located. For example, for a CSI report on slot n0, the CSI reference resource is located on slot n0-N0+N, or on multiple time-domain units starting from slot n0-N0+N. The value of N0 can be determined by network-side device signaling and / or terminal capability reporting signaling, such as being equal to the value of M below, or a value greater than M.

[0118] Optionally, in this embodiment, CSI-RS at a time no later than the first time domain position is used for CSI report calculation, while CSI-RS at a time later than the first time domain position are not used for CSI report calculation, to ensure that the terminal has sufficient time to include the predicted CSI in the CSI report. The first time domain position is a time domain position located M time units before the time domain resource containing the uplink channel carrying the CSI report; that is, the first time domain position is located before the time domain resource containing the uplink channel carrying the CSI report, and is M time units apart from the time domain resource containing the uplink channel carrying the CSI report, where M is a positive integer.

[0119] Optionally, the value of M can be determined by at least one of the following: signaling of network-side devices (such as higher-layer signaling, DCI, etc.), terminal capability reporting signaling, and predefined information.

[0120] Optionally, the first time-domain location and the CSI reference resource are located in different time-domain locations to ensure the calculation of the CSI report.

[0121] It should be noted that once the CSI reference resource is defined as a future time slot, the timing of the CSI-RS used to calculate the CSI report needs to be further defined to ensure that the terminal has sufficient time to include the predicted CSI in the CSI report. Specifically, a target time domain location (i.e., the first time domain location mentioned above) needs to be defined. CSI-RS no later than the target time domain location are used to calculate the CSI report, while CSI-RS later than the target time domain location are not used to calculate the CSI report. The target time domain location and the CSI reference resource may not be in the same time domain location. The target time domain location is M time slots or OFDM symbols before the time domain resource where the uplink channel carrying the CSI report is located. For example, for a CSI report on time slot n, the target time domain location is time slot nM. Alternatively, the target time domain location is M OFDM symbols away from the first (or last) OFDM symbol occupied by the uplink channel carrying the CSI report.

[0122] Furthermore, the value of M can be fixed or determined by agreed-upon rules. The value of M can also be determined by base station signaling, for example, based on the number of CSI-RS resources configured in the base station or the type of CSI report. The value of M can also be determined by terminal capability reporting signaling. For example, the value of M can be determined based on Z1 or Z'1 in Table 1 below, as determined by the terminal capability reporting signaling, or based on at least one of Z1, Z'1, Z2, Z'2, Z3, and Z'3 in Table 2 below, as determined by the terminal capability reporting signaling. Here, Table 1 represents CSI calculation delay requirement 1, Table 2 represents CSI calculation delay requirement 2, and X in Table 2... i and KB i The value of M is determined based on the terminal capability reporting signaling. For example, if the subcarrier spacing information is "1", the CSI calculation delay determined by the terminal capability reporting signaling is Z1 in Table 1, i.e., "13 symbols", then the value of M can be 13 symbols. Alternatively, if the subcarrier spacing information is "3", the CSI calculation delay determined by the terminal capability reporting signaling is Z2 in Table 2, i.e., "152 symbols", then the value of M can be 152 symbols. Or, the unit of M is a time slot. The value of M is determined by converting at least one of Z1, Z'1, Z2, Z'2, Z3, and Z'3 in Table 1 or Table 2 into the number of time slots. For example, dividing at least one of Z1, Z'1, Z2, Z'2, Z3, and Z'3 by the number of OFDM symbols in a time slot (e.g., 14) and then rounding (rounding up or down) yields M.

[0123] Table 1

[0124]

[0125] Table 2

[0126]

[0127] In other examples, the time corresponding to the CSI report needs to be defined flexibly. The CSI report may need to correspond to past or future time. In this example, the value of N in the above method can be flexibly determined by the base station configuration and can include positive or negative values. That is, the CSI reference resource associated with the CSI report is located N time slots or OFDM symbols after or before the time domain resource of the uplink channel carrying the CSI report.

[0128] In this embodiment of the application, for CSI-RS used for CSI reporting, the measurement performance can be enhanced or the CSI-RS overhead can be reduced by optimizing the configuration parameters of the periodic or semi-continuous CSI-RS.

[0129] Optionally, the CSI-RS configuration parameters associated with the aforementioned CSI report may include at least one of the following: L, S, and T; wherein L, S, and T are positive integers, L is the number of consecutive CSI-RS transmission opportunities in the first transmission opportunity set, S is the number of time units between two adjacent first transmission opportunity sets, and T is the number of time units between two adjacent CSI-RS transmission opportunities in the first transmission opportunity set. The first transmission opportunity set refers to the CSI-RS transmission opportunity set. The time unit is, for example, a time slot or an OFDM symbol. In this way, by using L, S, and / or T in the CSI-RS configuration parameters, the CSI-RS transmission opportunities can be flexibly configured. For example, by using L, multiple consecutive CSI-RS transmission opportunities can be configured in the CSI-RS transmission opportunity set, thereby ensuring measurement performance by increasing the number of CSI-RS transmission opportunities; or by using S and / or T, the interval between adjacent CSI-RS transmission opportunities can be flexibly configured, thereby reducing CSI-RS overhead.

[0130] Optionally, S is an integer greater than or equal to M+N.

[0131] For example, the L, S, and T parameters in the CSI-RS configuration parameters associated with CSI reports can be like this: Figure 5 As shown, L is the number of consecutive CSI-RS transmission opportunities in the transmission opportunity set, S is the number of time slots or OFDM symbols between two adjacent transmission opportunity sets, and T is the number of time slots or OFDM symbols between two adjacent CSI-RS transmission opportunity sets.

[0132] Optionally, to enhance measurement performance, this can be achieved by configuring multiple CSI-RS resource combinations. Specifically, the CSI report associated CSI resource configuration may include K CSI-RS resources, which are associated with P CSI-RS resource combinations, where K and P are positive integers.

[0133] Optionally, each CSI-RS resource portfolio may include at least one of the following: a CSI-RS resource set, or a portion of the resources in a CSI-RS resource set.

[0134] Optionally, the CSI-RS resources included in each CSI-RS resource portfolio can be determined by at least one of the following:

[0135] 1) The identifier of the associated CSI-RS resource combination configured for the CSI-RS resource; for example, the identifier of the associated CSI-RS resource combination can be configured for the CSI-RS resource through network-side signaling; for example, if there are 4 CSI-RS resources, namely CSI-RS resources 0, 1, 2 and 3, and these 4 CSI-RS resources are associated in 2 CSI-RS resource combinations, and CSI-RS resources 0 and 3 are configured to be associated with CSI-RS resource combination 1, and CSI-RS resources 1 and 2 are configured to be associated with CSI-RS resource combination 2, then: through the identifier "1" of the CSI-RS resource combination, it can be determined that the corresponding included CSI-RS resources are CSI-RS resources 0 and 3; through the identifier "2" of the CSI-RS resource combination, it can be determined that the corresponding included CSI-RS resources are CSI-RS resources 1 and 2.

[0136] 2) The order of CSI-RS resources in CSI-RS resource configuration. For example, if there are 4 CSI-RS resources configured in the order of CSI-RS resources 0, 1, 2 and 3, and these 4 CSI-RS resources are associated with 2 CSI-RS resource combinations, then the first and second CSI-RS resources are associated with CSI-RS resource combination 1, and the third and fourth CSI-RS resources are associated with CSI-RS resource combination 2. Therefore, by the configured order of CSI-RS resources, it can be determined that the CSI-RS resource combination corresponding to identifier "1" contains CSI-RS resources 0 and 1, and the CSI-RS resource combination corresponding to identifier "2" contains CSI-RS resources 2 and 3.

[0137] Optionally, the resource selection indication in the CSI report can be associated with the K / P resources included in each CSI-RS resource portfolio to reduce the overhead of resource selection indication. For example, the resource selection indication in the CSI report can be associated with the K / P resources included in the first CSI-RS resource portfolio.

[0138] Furthermore, the bit width of the resource selection indication in the CSI report can be [missing information]. in, The symbol for rounding up.

[0139] When processing periodic or semi-persistent CSI-RS, the terminal needs to cache the samples or processed results of the CSI-RS to calculate the CSI report. CSI prediction requires the terminal to calculate the CSI for future times using CSI-RS measurements taken at multiple times. Therefore, the terminal needs to cache CSI-RS samples or processed results from multiple CSI-RS transmission times, resulting in significant terminal storage and computational complexity. This is especially true when periodic or semi-persistent CSI-RS is used to calculate aperiodic CSI reports, which are dynamically triggered by the base station via DCI signaling. Figure 6 As shown, the terminal cannot predict when the base station will trigger the CSI report, so it needs to keep preparing to calculate the CSI report, which makes the storage space and complexity issues particularly serious.

[0140] To address the aforementioned issues, one solution is to increase the CPU time allocated to CSI reporting. Another solution is to increase the number of active CSI-RS resources or ports used for CSI reporting. This way, the computational or storage complexity required by the terminal can be accurately determined by network-side devices, such as the base station. These devices can then make appropriate CSI and CSI-RS triggering, activation, or configurations based on the terminal's capabilities to avoid exceeding the terminal's processing capacity. This reduces the terminal's CSI processing complexity and controls the storage overhead required for CSI computation.

[0141] Optionally, for the CPU usage time of the CSI report, the CPU usage time of the CSI report can start from the first time unit of the fourth resource in the Jth CSI-RS transmission opportunity before the first time domain position or the CSI reference resource, and end at the end of the CSI report transmission. Here, the first time domain position is a time domain position located M time units before the time domain resource where the uplink channel carrying the CSI report is located; that is, the first time domain position is located before the time domain resource where the uplink channel carrying the CSI report is located, and is M time units apart from the time domain resource where the uplink channel carrying the CSI report is located. The CSI reference resource can be selected as the reference resource described in the above embodiments. The fourth resource may include CSI-RS resources and / or CSI-IM resources, etc. M is a positive integer, and J is a positive integer.

[0142] Optionally, the value of J can be determined through terminal capability reporting signaling and / or signaling from network-side devices. Alternatively, the value of J can be a preset, fixed value.

[0143] Optionally, to increase the number of active CSI-RS resources or ports occupied by CSI reports, each CSI-RS resource associated with a CSI report can be counted as Q active CSI-RS resources, or each CSI-RS port associated with a CSI report can be counted as Q active CSI-RS ports, where Q is a positive integer.

[0144] Optionally, the value of Q can be determined through terminal capability reporting signaling and / or signaling from network-side devices. Alternatively, the value of Q can be a preset, fixed value.

[0145] In some embodiments, the values ​​of J and / or Q can also be related to the base station's configuration signaling, such as to the base station codebook configuration parameters. For example, the values ​​of J and / or Q can be determined by a proportion of a certain codebook configuration parameter, or by adding a proportion of a certain codebook configuration parameter to a value determined by terminal capability reporting signaling, wherein the proportion can be reported by terminal capability signaling.

[0146] The information determination method provided in this application can be executed by an information determination device. This application uses an information determination device executing the information determination method as an example to illustrate the information determination device provided in this application.

[0147] Please see Figure 7 , Figure 7 This is a schematic diagram of an information determination device provided in an embodiment of this application. The device is applied to a communication device, which may be a terminal or a network-side device. Figure 7 As shown, the information determining device 70 includes:

[0148] The first determining module 71 is configured to determine whether a second resource can be used to map a first object based on a first signaling and / or a preset rule; wherein the second resource is a resource occupied by a channel state information reference signal (CSI-RS) located on a first resource or a set of first resources, and the first object includes at least one of the following: a first channel and a first signal.

[0149] Optionally, the first signaling is used to indicate at least one of the following:

[0150] The resources occupied by the CSI-RS cannot be used to map the first channel;

[0151] The resources occupied by the CSI-RS cannot be used to map the first signal;

[0152] The resources occupied by the CSI-RS can be used to map the first channel;

[0153] The resources occupied by the CSI-RS can be used to map the first signal.

[0154] Optionally, the first channel includes at least one of the following: PDSCH, PUSCH.

[0155] Optionally, the first signal includes: zero-power ZP CSI-RS.

[0156] Optionally, the first resource or the first resource set includes at least one of the following: CSI-RS transmission timing, CSI-RS period, CSI-RS resource, OFDM symbol containing CSI-RS, time slot resource containing CSI-RS, frequency domain resource containing CSI-RS, and first channel resource scheduled by network-side equipment.

[0157] Optionally, the first resource or the first set of resources is determined based on at least one of the following:

[0158] The second signaling of network-side devices;

[0159] Predefined rules.

[0160] Optionally, the second signaling includes at least one of the following: higher-layer signaling, downlink control information (DCI).

[0161] Optionally, the first resource or the first resource set includes: resources between the first time-domain resource and the second time-domain resource, such as CSI-RS transmission timing; wherein, the first time-domain resource includes at least one of the following: the time unit in which the DCI that triggers the Channel State Information (CSI) report is located; the time unit in which the uplink channel carrying the CSI report is located; S time units prior to the time unit in which the uplink channel carrying the CSI report is located, where S is a positive integer; the second time-domain resource includes at least one of the following: the time unit in which the uplink channel carrying the CSI report is located; the time unit in which the reference resource corresponding to the CSI report is located; the time unit corresponding to the CSI reported by the CSI report.

[0162] Optionally, the preset rule includes: the resources occupied by CSI-RS on the resources between the first time domain resources and the second time domain resources can be used to map the first object.

[0163] Optionally, the second resource is located after the time unit in which the first signaling is located, and is spaced at least F time units apart from the time unit in which the first signaling is located, where F is a positive integer.

[0164] Optionally, the first signaling includes at least one of the following:

[0165] Uplink scheduling DCI;

[0166] Downlink scheduling DCI;

[0167] Group public DCI;

[0168] Media Access Control Unit (MAC CE)

[0169] Optionally, when the first signaling includes an uplink scheduling DCI, the mapping status of the resources occupied by the CSI-RS is indicated by at least one of the following in the uplink scheduling DCI: a private domain, a CSI request domain;

[0170] When the first signaling includes a downlink scheduling DCI, the mapping status of the resources occupied by the CSI-RS is indicated by at least one of the following in the downlink scheduling DCI: a dedicated domain, a resource allocation domain, and a ZP CSI-RS indication domain.

[0171] When the first signaling includes a group common DCI, the mapping status of the resources occupied by the CSI-RS is indicated by the private field in the group common DCI.

[0172] Optionally, when the mapping status of the resources occupied by the CSI-RS is indicated by the CSI request field in the uplink scheduling DCI, the mapping status of the resources occupied by the CSI-RS is configured in the CSI triggering state;

[0173] When the mapping status of the resources occupied by the CSI-RS is indicated by the resource allocation field in the downlink scheduling DCI, the mapping status of the resources occupied by the CSI-RS is configured in the resource allocation status.

[0174] When the mapping status of the resources occupied by the CSI-RS is indicated by the ZP CSI-RS indication field in the downlink scheduling DCI, the mapping status of the resources occupied by the CSI-RS is configured in the ZP CSI-RS status.

[0175] Optionally, the terminal may report information about the recommended first resource or information about the first resource set.

[0176] Optionally, the resources occupied by the CSI-RS are not included in the CPU usage of the CSI processing unit, or the resources occupied by the CSI-RS are not included in the active CSI-RS resources.

[0177] Optionally, if the CSI-RS is a semi-persistent CSI-RS, the terminal does not receive the first signaling during the first time period, or the terminal ignores the first signaling; wherein, the starting point of the first time period is the transmission time of the third signaling or the feedback time of the third signaling, the third signaling is the signaling that activates the semi-persistent CSI-RS, and the duration of the first time period is G time units, where G is a positive integer.

[0178] Optionally, if the CSI-RS is a semi-persistent CSI-RS, the network-side device does not send the first signaling during the first time period; wherein, the starting point of the first time period is the sending time of the third signaling or the feedback time of the third signaling, the third signaling is the signaling that activates the semi-persistent CSI-RS, and the duration of the first time period is G time units, where G is a positive integer.

[0179] The information determination device 70 provided in this application embodiment can achieve... Figure 2 The various processes implemented in the method embodiments shown achieve the same technical effects, and will not be described again here to avoid repetition.

[0180] Please see Figure 8 , Figure 8 This is a schematic diagram of an information determination device provided in an embodiment of this application. The device is applied to a communication device, which may be a terminal or a network-side device. Figure 8 As shown, the information determining device 80 includes:

[0181] The second determining module 81 is used to determine the reference resource associated with the CSI report in a first time domain unit, wherein the first time domain unit includes at least one time domain unit located at least N time units after the third time domain resource, the third time domain resource being the time domain resource where the uplink channel carrying the CSI report is located, and N being a positive integer.

[0182] Optionally, the time-domain unit includes at least one of the following:

[0183] Time slot, time slot group, OFDM symbol, OFDM symbol group.

[0184] Optionally, the value of N is determined by the third signaling of the network-side device and / or the terminal capability reporting signaling.

[0185] Optionally, the third signaling includes at least one of the following: higher-layer signaling, DCI.

[0186] Optionally, when the third signaling includes a DCI that triggers CSI, the value of N is determined by at least one of the following in the DCI that triggers CSI: a private domain, a CSI request domain.

[0187] Optionally, CSI-RS at a time no later than the first time domain position are used for the calculation of the CSI report, while CSI-RS at a time later than the first time domain position are not used for the calculation of the CSI report; wherein, the first time domain position is the time domain position located M time units before the time domain resource of the uplink channel carrying the CSI report, and M is a positive integer.

[0188] Optionally, the value of M is determined by at least one of the following: signaling from network-side devices, terminal capability reporting signaling, or predefined information.

[0189] Optionally, the first time-domain location and the reference resource are located at different time-domain locations.

[0190] Optionally, the CSI-RS configuration parameters associated with the CSI report include at least one of the following: L, S, and T; wherein L, S, and T are positive integers, L is the number of consecutive CSI-RS transmission opportunities in the first transmission opportunity set, S is the number of time units between two adjacent first transmission opportunity sets, and T is the number of time units between two adjacent CSI-RS transmission opportunities in the first transmission opportunity set.

[0191] Optionally, the CSI report associated with the CSI-RS resource configuration includes K CSI-RS resources, which are associated with P combinations of CSI-RS resources, where K and P are positive integers.

[0192] Optionally, each CSI-RS resource portfolio includes at least one of the following: a CSI-RS resource set, or a portion of the resources in a CSI-RS resource set.

[0193] Optionally, the CSI-RS resources included in each CSI-RS resource portfolio are determined by at least one of the following:

[0194] The identifier of the associated CSI-RS resource combination configured for the CSI-RS resource;

[0195] The order of CSI-RS resources in the CSI-RS resource configuration.

[0196] Optionally, the resource selection indication in the CSI report is associated with the K / P resources contained in each CSI-RS resource portfolio.

[0197] Optionally, the bit width of the resource selection indication in the CSI report is [missing information].

[0198] Optionally, the CPU usage time of the CSI report starts from the first time unit of the fourth resource in the Jth CSI-RS transmission opportunity before the first time domain position or the reference resource, and ends at the end of the CSI report transmission; wherein, the first time domain position is the time domain position located M time units before the time domain resource of the uplink channel carrying the CSI report, the fourth resource includes CSI-RS resources and / or Channel State Information Interference Measurement CSI-IM resources, where M is a positive integer and J is a positive integer.

[0199] Optionally, the value of J is determined by terminal capability reporting signaling and / or signaling from network-side devices.

[0200] Optionally, each CSI-RS resource associated with the CSI report is counted as Q active CSI-RS resources, or each CSI-RS port associated with the CSI report is counted as Q active CSI-RS ports, where Q is a positive integer.

[0201] Optionally, the value of Q is determined by terminal capability reporting signaling and / or signaling from network-side devices.

[0202] The information determination device 80 provided in this application embodiment can achieve... Figure 4 The various processes implemented in the method embodiments shown achieve the same technical effects, and will not be described again here to avoid repetition.

[0203] Optional, such as Figure 9 As shown in the illustration, this application also provides a communication device 90, including a processor 91 and a memory 92. The memory 92 stores programs or instructions that can run on the processor 91. For example, when the communication device 90 is a terminal, the program or instructions executed by the processor 91 implement the various steps of the above-described information determination method embodiment and achieve the same technical effect. When the communication device 90 is a network-side device, the program or instructions executed by the processor 91 implement the various steps of the above-described information determination method embodiment and achieve the same technical effect. To avoid repetition, further details are omitted here.

[0204] This application embodiment also provides a communication device, including a processor and a communication interface. The processor is configured to determine whether a second resource can be used to map a first object based on a first signaling and / or a preset rule; wherein the second resource is a resource occupied by a Channel State Information Reference Signal (CSI-RS) located on a first resource or a set of first resources, and the first object includes at least one of the following: a first channel and a first signal; and / or, the processor is configured to determine the reference resource associated with the CSI report on a first time domain unit, wherein the first time domain unit includes at least one time domain unit located at least N time domain units after a third time domain resource, the third time domain resource being the time domain resource where the uplink channel carrying the CSI report is located, and N being a positive integer. This device embodiment corresponds to the above-described information determination method embodiment. All implementation processes and methods of the above method embodiments can be applied to this device embodiment and can achieve the same technical effect. To avoid repetition, they will not be described again here.

[0205] Specifically, Figure 10 A schematic diagram of the hardware structure of a terminal to implement an embodiment of this application.

[0206] The terminal 1000 includes, but is not limited to, at least some of the following components: radio frequency unit 1001, network module 1002, audio output unit 1003, input unit 1004, sensor 1005, display unit 1006, user input unit 1007, interface unit 1008, memory 1009, and processor 1010.

[0207] Those skilled in the art will understand that the terminal 1000 may also include a power supply (such as a battery) for supplying power to various components. The power supply may be logically connected to the processor 1010 through a power management system, thereby enabling functions such as managing charging, discharging, and power consumption through the power management system. Figure 10 The terminal structure shown does not constitute a limitation on the terminal. The terminal may include more or fewer components than shown, or combine certain components, or have different component arrangements, which will not be elaborated here.

[0208] It should be understood that, in this embodiment, the input unit 1004 may include a graphics processing unit (GPU) 10041 and a microphone 10042. The GPU 10041 processes image data of still images or videos obtained by an image capture device (such as a camera) in video capture mode or image capture mode. The display unit 1006 may include a display panel 10061, which may be configured in the form of a liquid crystal display, an organic light-emitting diode, or the like. The user input unit 1007 includes a touch panel 10071 and at least one of other input devices 10072. The touch panel 10071 is also called a touch screen. The touch panel 10071 may include a touch detection device and a touch controller. Other input devices 10072 may include, but are not limited to, physical keyboards, function keys (such as volume control buttons, power buttons, etc.), trackballs, mice, and joysticks, which will not be described in detail here.

[0209] In this embodiment, after receiving downlink data from the network-side device, the radio frequency unit 1001 can transmit it to the processor 1010 for processing; in addition, the radio frequency unit 1001 can send uplink data to the network-side device. Typically, the radio frequency unit 1001 includes, but is not limited to, antennas, amplifiers, transceivers, couplers, low-noise amplifiers, duplexers, etc.

[0210] The memory 1009 can be used to store software programs or instructions and various data. The memory 1009 may primarily include a first storage area for storing programs or instructions and a second storage area for storing data. The first storage area may store the operating system, application programs or instructions required for at least one function (such as sound playback function, image playback function, etc.). Furthermore, the memory 1009 may include volatile memory or non-volatile memory, or both. The non-volatile memory may be read-only memory (ROM), programmable read-only memory (PROM), erasable programmable read-only memory (EPROM), electrically erasable programmable read-only memory (EEPROM), or flash memory. Volatile memory can be random access memory (RAM), static random access memory (SRAM), dynamic random access memory (DRAM), synchronous dynamic random access memory (SDRAM), double data rate synchronous dynamic random access memory (DDRSDRAM), enhanced synchronous dynamic random access memory (ESDRAM), synchronous link dynamic random access memory (SLDRAM), and direct memory bus RAM (DRRAM). The memory 1009 in this embodiment includes, but is not limited to, these and any other suitable types of memory.

[0211] The processor 1010 may include one or more processing units; optionally, the processor 1010 integrates an application processor and a modem processor, wherein the application processor mainly handles operations involving the operating system, user interface, and applications, and the modem processor mainly handles wireless communication signals, such as a baseband processor. It is understood that the aforementioned modem processor may also not be integrated into the processor 1010.

[0212] The processor 1010 is configured to determine, based on a first signaling and / or a preset rule, whether a second resource can be used to map a first object; wherein the second resource is a resource occupied by a Channel State Information Reference Signal (CSI-RS) located on a first resource or a set of first resources, and the first object includes at least one of the following: a first channel and a first signal; and / or, the processor 1010 is configured to determine that the reference resource associated with the CSI report is located in a first time domain unit, wherein the first time domain unit includes at least one time domain unit located at least N time domain units after a third time domain resource, the third time domain resource being the time domain resource where the uplink channel carrying the CSI report is located, and N being a positive integer.

[0213] The terminal 1000 provided in this application embodiment can implement all the processes implemented in the above information determination method embodiment and achieve the same technical effect. To avoid repetition, it will not be described again here.

[0214] Specifically, embodiments of this application also provide a network-side device. For example... Figure 11 As shown, the network-side device 110 includes: an antenna 111, a radio frequency (RF) device 112, a baseband device 113, a processor 114, and a memory 115. The antenna 111 is connected to the RF device 112. In the uplink direction, the RF device 112 receives information through the antenna 111 and transmits the received information to the baseband device 113 for processing. In the downlink direction, the baseband device 113 processes the information to be transmitted and sends it to the RF device 112. The RF device 112 processes the received information and transmits it through the antenna 111.

[0215] The method executed by the network-side device in the above embodiments can be implemented in the baseband device 113, which includes a baseband processor.

[0216] Baseband device 113 may include, for example, at least one baseband board on which multiple chips are disposed, such as Figure 11 As shown, one of the chips is, for example, a baseband processor, which is connected to the memory 115 via a bus interface to call the program in the memory 115 and execute the network device operation shown in the above method embodiment.

[0217] The network-side device may also include a network interface 116, such as a common public radio interface (CPRI).

[0218] Specifically, the network-side device 110 of this embodiment further includes: instructions or programs stored in memory 115 and executable on processor 114, wherein processor 114 calls the instructions or programs in memory 115 to execute. Figure 7 and / or Figure 8 The methods executed by each module shown achieve the same technical effect, and to avoid repetition, they will not be described in detail here.

[0219] This application also provides a readable storage medium storing a program or instructions. When the program or instructions are executed by a processor, they implement the various processes of the above-described information determination method embodiments and achieve the same technical effects. To avoid repetition, they will not be described again here.

[0220] The processor is the processor in the terminal described in the above embodiments. The readable storage medium includes computer-readable storage media, such as computer read-only memory (ROM), random access memory (RAM), magnetic disk, or optical disk.

[0221] This application embodiment also provides a chip, which includes a processor and a communication interface. The communication interface is coupled to the processor. The processor is used to run programs or instructions to implement the various processes of the above-described information determination method embodiment and can achieve the same technical effect. To avoid repetition, it will not be described again here.

[0222] It should be understood that the chip mentioned in the embodiments of this application may also be referred to as a system-on-a-chip, system chip, chip system, or system-on-a-chip, etc.

[0223] This application also provides a computer program / program product, which is stored in a storage medium and executed by at least one processor to implement the various processes of the above-described information determination method embodiments, and can achieve the same technical effect. To avoid repetition, it will not be described again here.

[0224] This application also provides a communication system, including: a terminal and a network-side device, wherein the terminal and the network-side device can be used to perform the steps of the information determination method as described in the first aspect, and / or perform the steps of the method as described in the second aspect.

[0225] It should be noted that, in this document, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes that element. Furthermore, it should be noted that the scope of the methods and apparatuses in the embodiments of this application is not limited to performing functions in the order shown or discussed, but may also include performing functions substantially simultaneously or in the reverse order, depending on the functions involved. For example, the described methods may be performed in a different order than described, and various steps may be added, omitted, or combined. Additionally, features described with reference to certain examples may be combined in other examples.

[0226] Through the above description of the embodiments, those skilled in the art can clearly understand that the methods of the above embodiments can be implemented by means of software plus necessary general-purpose hardware platforms. Of course, they can also be implemented by hardware, but in many cases the former is a better implementation method. Based on this understanding, the technical solution of this application, in essence, or the part that contributes to the prior art, can be embodied in the form of a computer software product. This computer software product is stored in a storage medium (such as ROM / RAM, magnetic disk, optical disk) and includes several instructions to cause a terminal (which may be a mobile phone, computer, server, air conditioner, or network device, etc.) to execute the methods described in the various embodiments of this application.

[0227] The embodiments of this application have been described above with reference to the accompanying drawings. However, this application is not limited to the specific embodiments described above. The specific embodiments described above are merely illustrative and not restrictive. Those skilled in the art can make many other forms under the guidance of this application without departing from the spirit and scope of the claims, and all of these forms are within the protection scope of this application.

Claims

1. A method for determining information, characterized in that, include: The communication device determines whether a second resource can be used to map a first object based on a first signaling and / or a preset rule; wherein the second resource is the resource occupied by a channel state information reference signal (CSI-RS) located on a first resource or a set of first resources, and the first object includes at least one of the following: a first channel and a first signal; Wherein, the first signaling is used to indicate at least one of the following: The resources occupied by the CSI-RS cannot be used to map the first channel; The resources occupied by the CSI-RS can be used to map the first channel; The resources occupied by the CSI-RS cannot be used to map the first signal; The resources occupied by the CSI-RS can be used to map the first signal; The first channel includes at least one of the following: Physical Downlink Shared Channel (PDSCH) and Physical Uplink Shared Channel (PUSCH); The first signal includes: zero-power ZP CSI-RS.

2. The method according to claim 1, characterized in that, The first resource or the first set of resources includes at least one of the following: CSI-RS transmission timing, CSI-RS period, CSI-RS resources, Orthogonal Frequency Division Multiplexing (OFDM) symbols containing CSI-RS, time slot resources containing CSI-RS, frequency domain resources containing CSI-RS, and the first channel resources scheduled by network-side equipment.

3. The method according to claim 1, characterized in that, The first resource or the first set of resources is determined based on at least one of the following: The second signaling of the network-side equipment; Predefined rules.

4. The method according to claim 3, characterized in that, The second signaling includes at least one of the following: higher-level signaling, downlink control information (DCI).

5. The method according to claim 3, characterized in that, The first resource or the first set of resources includes: resources between the first time-domain resource and the second time-domain resource; The first time-domain resource includes at least one of the following: the time unit in which the DCI that triggers the Channel State Information (CSI) report is located; the time unit in which the uplink channel carrying the CSI report is located; and S time units preceding the time unit in which the uplink channel carrying the CSI report is located, where S is a positive integer. The second time-domain resource includes at least one of the following: the time unit in which the uplink channel carrying the CSI report is located; the time unit in which the reference resource corresponding to the CSI report is located; and the time unit in which the CSI reported in the CSI report corresponds to the CSI.

6. The method according to claim 5, characterized in that, The preset rules include: the resources occupied by CSI-RS on the resources between the first time domain resources and the second time domain resources can be used to map the first object.

7. The method according to claim 1, characterized in that, The second resource is located after the time unit in which the first signaling is located, and is at least F time units apart from the time unit in which the first signaling is located, where F is a positive integer.

8. The method according to claim 1, characterized in that, If the CSI-RS is a semi-persistent CSI-RS, during the first time period, the terminal does not receive the first signaling, or the terminal ignores the first signaling; wherein, the starting point of the first time period is the transmission time of the third signaling or the feedback time of the third signaling, the third signaling is the signaling that activates the semi-persistent CSI-RS, and the duration of the first time period is G time units, where G is a positive integer.

9. The method according to claim 1, characterized in that, If the CSI-RS is a semi-persistent CSI-RS, the network-side device does not send the first signaling during the first time period; wherein, the starting point of the first time period is the sending time of the third signaling or the feedback time of the third signaling, the third signaling is the signaling that activates the semi-persistent CSI-RS, and the duration of the first time period is G time units, where G is a positive integer.

10. The method according to claim 1, characterized in that, The first signaling includes at least one of the following: Uplink scheduling DCI; Downlink scheduling DCI; Group public DCI; Media Access Control Unit (MAC CE) 11. The method according to claim 10, characterized in that, When the first signaling includes an uplink scheduling DCI, the mapping status of the resources occupied by the CSI-RS is indicated by at least one of the following in the uplink scheduling DCI: a dedicated domain, a CSI request domain; When the first signaling includes a downlink scheduling DCI, the mapping status of the resources occupied by the CSI-RS is indicated by at least one of the following in the downlink scheduling DCI: a dedicated domain, a resource allocation domain, and a ZP CSI-RS indication domain. When the first signaling includes a group common DCI, the mapping status of the resources occupied by the CSI-RS is indicated by the private field in the group common DCI.

12. The method according to claim 11, characterized in that, When the mapping status of the resources occupied by the CSI-RS is indicated by the CSI request field in the uplink scheduling DCI, the mapping status of the resources occupied by the CSI-RS is configured in the CSI trigger state; When the mapping status of the resources occupied by the CSI-RS is indicated by the resource allocation field in the downlink scheduling DCI, the mapping status of the resources occupied by the CSI-RS is configured in the resource allocation status. When the mapping status of the resources occupied by the CSI-RS is indicated by the ZP CSI-RS indication field in the downlink scheduling DCI, the mapping status of the resources occupied by the CSI-RS is configured in the ZP CSI-RS status.

13. The method according to claim 1, characterized in that, The communication device is a terminal, and the method further includes: The terminal reports information about the first recommended resource or information about the first resource set.

14. The method according to claim 1, characterized in that, The resources occupied by the CSI-RS are not included in the CPU usage of the CSI processing unit, or the resources occupied by the CSI-RS are not included in the active CSI-RS resources.

15. The method according to claim 1, characterized in that, The CSI-RS is used for at least one of the following: CSI reporting, performance monitoring, quasi-co-located QCL source, and model lifecycle management.

16. An information determining device, characterized in that, include: The first determining module is configured to determine whether a second resource can be used to map a first object based on a first signaling and / or a preset rule; wherein the second resource is a resource occupied by a channel state information reference signal (CSI-RS) located on a first resource or a set of first resources, and the first object includes at least one of the following: a first channel and a first signal; Wherein, the first signaling is used to indicate at least one of the following: The resources occupied by the CSI-RS cannot be used to map the first channel; The resources occupied by the CSI-RS can be used to map the first channel; The resources occupied by the CSI-RS cannot be used to map the first signal; The resources occupied by the CSI-RS can be used to map the first signal; The first channel includes at least one of the following: PDSCH, PUSCH; The first signal includes: ZP CSI-RS.

17. A communication device, characterized in that, It includes a processor and a memory, the memory storing a program or instructions that can run on the processor, the program or instructions being executed by the processor to implement the steps of the information determination method as described in any one of claims 1 to 15.

18. A readable storage medium, characterized in that, The readable storage medium stores a program or instructions that, when executed by a processor, implement the steps of the information determination method as described in any one of claims 1 to 15.

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