Information Determination Method, Apparatus, Communication Device, and Readable Storage Medium

Abstract

This application discloses an information determination method, apparatus, communication device, and readable storage medium, belonging to the field of communication technologies. The information determination method according to the embodiments of this application includes a communication device determining that a reference resource related to a CSI report is in a first time domain unit, where the first time domain unit includes at least one time domain unit located at least N time units after a first time domain resource, the first time domain resource is a time domain resource where an uplink channel carrying the CSI report is located, and N is a positive integer.

Description

Technical Field

[0001] (Cross - reference to related applications) This application claims the priority of Chinese Patent Application No. 202210721441.5, filed in China on June 16, 2022, and all of the content of the said application is incorporated herein by reference.

[0002] This application belongs to the field of communication technologies, and specifically relates to an information determination method, apparatus, communication device, and readable storage medium.

Background Art

[0003] The measurement and reporting of Channel State Information (CSI) are important technologies for improving data transmission performance in communication systems. By using periodic or semi - persistent Channel State Information - Reference Signals (CSI - RS) for CSI prediction, terminals and base stations can stably monitor channel quality and obtain stable and reliable CSI. However, currently for CSI reports, the reference resources are configured / defined in the slot before the CSI report, which is not suitable for the characteristics of CSI prediction. Therefore, how to reasonably configure CSI reference resources is an urgent problem to be solved currently.

Summary of the Invention

Problems to be Solved by the Invention

[0004] Embodiments of this application provide an information determination method, apparatus, communication device, and readable storage medium that can solve the problem of how to reasonably configure CSI reference resources.

Means for Solving the Problems

[0005] According to a first aspect, an information determination method is provided, and this method is as follows: The communication device includes determining that a reference resource related to a CSI report is on a first time domain unit, where the first time domain unit includes at least one time domain unit located at least N time units after a first time domain resource, the first time domain resource is a time domain resource where an uplink channel carrying the CSI report is located, and N is a positive integer.

[0006] According to a second aspect, an information determination method is provided, and this method includes: The communication device includes determining whether a second resource can be used to map a first target based on a second signaling and / or a preset rule, where 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 target includes at least one of a first channel and a first signal.

[0007] According to a third aspect, an information determination device is provided, and this device includes: a first determination module for determining that a reference resource related to a CSI report is on a first time domain unit, where the first time domain unit includes at least one time domain unit located at least N time units after a first time domain resource, the first time domain resource is a time domain resource where an uplink channel carrying the CSI report is located, and N is a positive integer.

[0008] According to a fourth aspect, an information determination device is provided, and this device includes: A second determination module for determining whether a second resource can be used to map a first target based on second signaling and / or preset rules, where 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 target includes at least one of a first channel and a first signal.

[0009] According to a fifth aspect, a communication device is provided, which includes a processor and a memory. The memory can store a program or instruction to be executed on the processor. When the program or instruction is executed by the processor, the steps of the method described in the first aspect are realized, and / or the steps of the method described in the second aspect are realized.

[0010] According to a sixth aspect, a communication device including a processor and a communication interface is provided. Here, the processor is used to determine whether a second resource can be used to map a first target based on second signaling and / or preset rules. Here, 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 target includes at least one of a first channel and a first signal. And / or, the processor is used to determine that a reference resource related to a CSI report is in a first time domain unit. Here, the first time domain unit includes at least one time domain unit located at least N time units after a first time domain resource, and the first time domain resource is a time domain resource where an uplink channel carrying the CSI report is located, and N is a positive integer.

[0011] According to a seventh aspect, a communication system including a terminal and a network-side device is provided, and the terminal and the network-side device may be used to execute the steps of the information determination method described in the first aspect and / or the steps of the information determination method described in the second aspect.

[0012] According to an eighth aspect, a readable storage medium is provided, in which a program or instructions are stored, and when the program or instructions are executed by a processor, the steps of the method described in the first aspect are realized and / or the steps of the method described in the second aspect are realized.

[0013] According to a ninth aspect, a chip including a processor and a communication interface is provided, the communication interface is coupled to the processor, and the processor is used to execute a program or instructions to realize the steps of the method described in the first aspect and / or the steps of the method described in the second aspect.

[0014] According to a tenth aspect, a computer program / program product is provided, the computer program / program product is stored in a storage medium, and the computer program / program product is executed by at least one processor to realize the steps of the method described in the first aspect and / or the steps of the method described in the second aspect.

Advantages of the Invention

[0015] In an embodiment of the present application, it may be determined that a reference resource related to a CSI report is on a first time domain unit, and the first time domain unit includes at least one time domain unit located at least N time units after a first time domain resource, and the first time domain resource is a time domain resource where an uplink channel carrying the CSI report is located. Thereby, the CSI reference resource may be placed on a time domain unit after the CSI report related thereto, whereby the characteristics of CSI prediction, that is, the reported CSI is suitable for predicting the CSI at a future time.

Brief Description of the Drawings

[0016]

Figure 1

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Embodiments for Carrying Out the Invention

[0017] The following clearly and completely describes the technical solutions in the embodiments of the present application in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are some of the embodiments of the present application, not all of them. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art shall fall within the protection scope of the present application.

[0018] Terms such as "first" and "second" in the specification and claims of the present application are used to distinguish similar objects and are not for describing a specific order or sequence. It should be understood that such terms are interchangeable when appropriate, so that the embodiments of the present application can be implemented in an order other than that illustrated or described herein, and the objects distinguished by "first" and "second" are generally of the same type, without limiting the number of objects. For example, the first object may be one or more. Note that "and / or" in the specification and claims represents at least one of the connected objects, and the character " / " generally represents that the related objects before and after are in an "or" relationship.

[0019] It should be noted that the technology described in the embodiments of this application is not limited to Long Term Evolution (LTE) / LTE-Advanced (LTE-A) systems, but can also be applied to 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 the embodiments of this application are always used interchangeably, and the described technology may be used in the systems and radio technologies mentioned above, or in other systems and radio technologies. The following description describes the New Radio (NR) system for illustrative purposes and uses NR terms in most of the following descriptions. However, these technologies may also be applied to applications other than NR system applications, such as the Sixth Generation (6 th Generation, 6G) communication system.

[0020] FIG. 1 shows a block diagram of a wireless communication system to which an embodiment of the present application is applicable. The wireless communication system includes a terminal 11 and a network-side device 12. Here, the terminal 11 may be a mobile phone, a tablet personal computer, a laptop computer (or called a notebook computer), a personal digital assistant (PDA), a palm top computer, a netbook, an ultra-mobile personal computer (UMPC), a mobile internet device (MID), an augmented reality (AR) / virtual reality (VR) device, a robot, a wearable device, a vehicle user equipment (VUE), a pedestrian user equipment (PUE), a smart home (home devices having a wireless communication function, such as a refrigerator, a television, a washing machine or furniture, etc.), a game machine, a personal computer (PC), a deposit and payment machine or a self-service machine, etc. The wearable device may include a smart watch, a smart band, smart earphones, smart glasses, smart accessories (such as a smart bracelet, a smart bracelet, a smart ring, a smart necklace, a smart ankle ring, a smart anklet, etc.), a smart list band, smart clothes, etc. It should be noted that in the embodiment of the present application, the specific type of the terminal 11 is not limited. The network-side device 12 may include an access network device or a core network device. Here, the access network device may also be called a wireless access network device, a radio access network (RAN), a wireless access network function or a wireless access network unit.The access network device may include a base station, a Wireless Local Area Network (WLAN) access point, or a WiFi node, etc. The base station may be called a Node B, an evolved Node B (eNB), an access point, a Base Transceiver Station (BTS), a radio base station, a radio transceiver, a Basic Service Set (BSS), an Extended Service Set (ESS), a Home Node B, a Home evolved Node B, a Transmitting Receiving Point (TRP), or other appropriate terms in the art. As long as the same technical effect is achieved, the base station is not limited to specific technical terms. For the sake of description, only the base station in the NR system in the embodiments of this application is taken as an example, but the specific type of the base station is not limited.

[0021] Optionally, the scenarios to which the embodiments of this application are applicable include, but are not limited to, CSI measurement and report, CSI prediction and report, etc. By means of methods such as Artificial Intelligence (AI) and / or Machine Learning (ML), the terminal can measure the already transmitted CSI-RS to predict the CSI at one or more future times, and report the predicted CSI report to the base station, so as to enable the base station to obtain the CSI corresponding to the future time and overcome the performance loss caused by the time-varying channel.

[0022] Optionally, the channel state information reference signal (CSI-RS) in the embodiments of the present application is optionally a periodic or semi-persistent CSI-RS. The periodic or semi-persistent CSI-RS may be transmitted at a period configured by upper layer signaling. The upper layer signaling may be, for example, radio resource control (RRC) signaling, medium access control (MAC) signaling, etc. The periodic or semi-persistent CSI-RS is a commonly used CSI-RS time domain type and may be used for aperiodic, semi-persistent or periodic CSI reports. By using the periodic or semi-persistent CSI-RS for CSI prediction, the terminal and the base station can stably monitor the channel quality and obtain stable and reliable CSI.

[0023] The CSI reference resource is defined on the slot before the CSI report and is not suitable for the characteristics of CSI prediction, that is, the reported CSI should predict the CSI at a future time. Therefore, the embodiments of the present application provide a method for determining the CSI reference resource, where the CSI reference resource related to the CSI report is located on at least one time domain unit of at least N time units after the time domain resource where the uplink channel carrying the CSI report is located, where N is a positive integer, and the time unit is, for example, a slot or an OFDM symbol, etc. This is suitable for the characteristics of CSI prediction, that is, the reported CSI is suitable for predicting the CSI at a future time.

[0024] Hereinafter, with reference to the drawings, the information determination method, apparatus, communication device, and readable storage medium according to the embodiments of the present application will be described in detail by means of several embodiments and their application scenarios.

[0025] Referring to FIG. 2, FIG. 2 is a flowchart of an information determination method according to an embodiment of the present application. This method is applied to a communication device, which is optionally a terminal or a network-side device, and the network-side device is, for example, a base station, etc. As shown in FIG. 2, this method includes the following steps.

[0026] Step 21: The communication device determines that the reference resource related to the CSI report is on the first time domain unit.

[0027] In this embodiment, the first time domain unit includes at least one time domain unit located at least N time units after the first time domain resource, and the first 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 first time domain resource and is separated from the first time domain resource by at least N time units. The time unit is, for example, a slot or an Orthogonal Frequency Division Multiplexing (OFDM) symbol, etc.

[0028] In this way, the CSI reference resource may be placed on the time domain unit after the CSI report related thereto, so that the characteristics of CSI prediction, that is, the reported CSI is suitable for predicting the CSI at a future time.

[0029] Optionally, the time domain unit may include, but is not limited to, at least one of a slot, a slot group, an OFDM symbol, an OFDM symbol group, etc. Here, the slot group is composed of a plurality of consecutive or equally spaced slots, and the OFDM symbol group is composed of a plurality of consecutive or equally spaced OFDM symbols. For example, when the first time domain unit is a slot, the interval between the slot and the CSI report is N slots, or when the first time domain unit is a slot group, the interval between the first slot of the slot group and the CSI report is N slots, and the N slots may be a plurality of consecutive slot units, or a plurality of slot units with an integer number of slots evenly spaced. Also 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, and the N OFDM symbols may be a plurality of consecutive OFDM symbol units, or a plurality of OFDM symbol units with an integer number of OFDM symbols evenly spaced.

[0030] Optionally, the value of N may be determined by the first signaling of the network side device and / or the terminal capability report signaling. The first signaling may include at least one of upper layer signaling, downlink control information (DCI), etc. The upper layer signaling is, for example, RRC signaling, MAC signaling, etc.

[0031] For example, the value of N may be determined by triggering the DCI of CSI. Further, the value of N may be determined by triggering at least one of the dedicated domain and the CSI request domain in the DCI of CSI. That is, the value of N is determined by triggering the dedicated domain and / or the CSI request domain in the DCI of CSI.

[0032] It can be understood that CSI prediction enables the terminal to report the CSI at a future time, and can reduce the impact of the channel time-varying on the base station applying the CSI to obtain precoding or beams. At this time, the CSI reported by the terminal should correspond to the downlink transmission at a certain future time. Therefore, the CSI reference resource should be defined at a future time, that is, the CSI reference resource related to the CSI report is located in the N slots or OFDM symbols after the time domain resource where the uplink channel carrying the CSI report is located.

[0033] For example, as shown in FIG. 3, FIG. 3 shows an example of the reference resource definition in CSI prediction. For the CSI report on slot n, the CSI reference resource is defined as the predicted slot, that is, slot n+N, where the value of N may be determined by base station signaling or terminal capability signaling, for example, the value of N is indicated by upper layer signaling or DCI. In some other examples, the CSI reported by the terminal may be used to predict the channel state at multiple future times. The CSI reference resource may be defined on a plurality of time domain units within a certain period after the CSI report, and the time domain unit may be at least one of a slot, a slot group, an OFDM symbol, and an OFDM symbol group.

[0034] Also, the start position corresponding to the N value, that is, the definition of slot (or OFDM symbol) n, may be earlier than the slot n where the CSI report is located. For example, n is the first N0 slots (or OFDM symbols) before the slot where the CSI report is located. For example, for the CSI report on slot n0, the CSI reference resource is located on slot n0 - N0 + N, or a plurality of time domain units starting from slot n0 - N0 + N. The value of N0 may be determined by network side device signaling and / or terminal capability report signaling. For example, it is a value equal to or greater than the following M.

[0035] Optionally, in the embodiments of the present application, CSI-RS that is not later than the first time domain position is used for the calculation of the CSI report, and CSI-RS that is later than the first time domain position is not used for the calculation of the CSI report, thereby ensuring that the terminal has sufficient time for the predicted CSI included in the CSI report. 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 separated from the time domain resource where the uplink channel carrying the CSI report by M time units, and M is a positive integer.

[0036] Optionally, the value of M may be determined by at least one of network side device signaling (such as upper layer signaling, DCI, etc.), terminal capability report signaling, and predefined information.

[0037] Optionally, the first time domain position and the CSI reference resource are located at different time domain positions, thereby ensuring the calculation of the CSI report.

[0038] It should be noted that after the CSI reference resource is defined as a future slot, the CSI-RS for calculating the CSI report needs to further define its timing, thereby ensuring that the terminal has sufficient time to include the predicted CSI in the CSI report. Specifically, it is necessary to define the target time domain position (i.e., the above-mentioned first time domain position). The CSI-RS that is not later than the target time domain position is used to calculate the CSI report, and the CSI-RS that is later than the target time domain position is not used to calculate the CSI report. The target time domain position and the CSI reference resource do not have to be in the same time domain position. The target time domain position is the first M slots or OFDM symbols before the time domain resource where the uplink channel carrying the CSI report is located. For example, for the CSI report on slot n, the target time domain position is slot n - M. Alternatively, the target time domain position is separated from the first (or last) OFDM symbol occupied by the uplink channel carrying the CSI report by M OFDM symbols.

[0039] Furthermore, the value of M may be fixed or determined by an agreed rule. The value of M may be determined by the base station signaling. For example, it may be determined based on the number of CSI-RS resources configured by the base station or the type of CSI report. The value of M may be determined by the terminal capability report signaling. For example, the value of M may be determined based on Z1 or Z’1 in Table 1 below determined by the terminal capability report signaling, or may be determined based on at least one of Z1, Z’1, Z2, Z’2, Z3, and Z’3 in Table 2 below determined by the terminal capability report signaling. Here, Table 1 shows the CSI calculation delay requirement 1, and Table 2 shows the CSI calculation delay requirement 2. X in Table 2 i and KB iThey are all determined based on terminal capability reporting signaling. For example, when the subcarrier spacing information is "1", it is determined by the terminal capability reporting signaling that the CSI calculation delay is Z1 in Table 1, that is, "13 symbols", and the value of M may be 13 symbols. Also for example, when the subcarrier spacing information is "3", it is determined by the terminal capability reporting signaling that the CSI calculation delay is Z2 in Table 2, that is, "152 symbols", and the value of M may be 152 symbols. Or, the unit of M is a slot, and 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 slots. For example, after dividing at least one of Z1, Z'1, Z2, Z'2, Z3, and Z'3 by the number of OFDM symbols in one slot (for example, 14), it is rounded to an integer (rounded up or down) to obtain M.

[0040]

Table 1

[0041]

Table 2

[0042] In some other examples, it is necessary to flexibly define the time corresponding to the CSI report, and the CSI report may need to correspond to past time or future time. In this example, the value of N in the above method may be flexibly determined by the base station configuration and may include positive or negative values, that is, the CSI reference resource related to the CSI report is located in the N slots or OFDM symbols after or before the time domain resource where the uplink channel carrying the CSI report is located.

[0043] In an embodiment of the present application, for the CSI-RS used in the CSI report, by optimizing the periodic or semi-persistent CSI-RS configuration parameters, the purpose of enhancing the measurement performance or reducing the CSI-RS overhead can be achieved.

[0044] Optionally, the CSI-RS configuration parameters related to the CSI report may include at least one of L, S, and T, where the L, S, and T are positive integers, the L is the number of consecutive CSI-RS transmission occasions in the first set of transmission occasions, the S is the number of time units of the interval between two adjacent first sets of transmission occasions, and the T is the number of time units of the interval between two adjacent CSI-RS transmission occasions in the first set of transmission occasions. The first set of transmission occasions refers to a set of CSI-RS transmission occasions. The time unit is, for example, a slot or an OFDM symbol. Thus, the L, S, and / or T in the CSI-RS configuration parameters can flexibly configure the CSI-RS transmission occasions. For example, by L, a plurality of consecutive CSI-RS transmission occasions in the CSI-RS transmission occasion set may be configured, thereby guaranteeing the measurement performance by increasing the CSI-RS transmission occasions. Also, for example, by S and / or T, the interval between adjacent CSI-RS transmission occasions may be flexibly configured, thereby achieving the purpose of reducing the CSI-RS overhead.

[0045] Optionally, the S is an integer greater than or equal to M + N.

[0046] For example, as shown in FIG. 3, in the CSI-RS configuration parameters related to the CSI report, the L is the number of consecutive CSI-RS transmission occasions in the transmission occasion set, the S is the number of slots or OFDM symbols of the interval between two adjacent transmission occasion sets, and the T is the number of slots or OFDM symbols of the interval between two adjacent CSI-RS transmission occasions in the transmission occasion set.

[0047] Optionally, to improve the measurement performance, this object can be achieved by configuring a combination of a plurality of CSI-RS resources. Specifically, the CSI-RS resource configuration related to the CSI report may include K CSI-RS resources, and the K CSI-RS resources are associated with a combination of P CSI-RS resources, where K and P are positive integers.

[0048] Optionally, each combination of CSI-RS resources may include at least one of a set of CSI-RS resources and some resources in a set of CSI-RS resources.

[0049] Optionally, the CSI-RS resources included in each combination of CSI-RS resources may be determined by at least one of the following.

[0050] 1) An identifier of an associated combination of CSI-RS resources configured for the CSI-RS resource. For example, the identifier of the associated combination of CSI-RS resources may be configured for the CSI-RS resource by network-side signaling. For example, when there are 4 CSI-RS resources, namely CSI-RS resources 0, 1, 2, and 3 respectively, these 4 CSI-RS resources are associated with a combination of 2 CSI-RS resources, and are configured such that CSI-RS resources 0 and 3 are associated with combination 1 of CSI-RS resources, and CSI-RS resources 1 and 2 are associated with combination 2 of CSI-RS resources. In that case, the identifier "1" of the combination of CSI-RS resources can be used to determine that the corresponding included CSI-RS resources are CSI-RS resources 0 and 3, and the identifier "2" of the combination of CSI-RS resources can be used to determine that the corresponding included CSI-RS resources are CSI-RS resources 1 and 2.

[0051] 2) Order of CSI-RS resources in CSI-RS resource configuration. For example, when there are four CSI-RS resources, the configuration order is CSI-RS resources 0, 1, 2, and 3 in sequence. These four CSI-RS resources are associated with combinations of two CSI-RS resources. The first and second CSI-RS resources are associated with combination 1 of CSI-RS resources, and the third and fourth CSI-RS resources are associated with combination 2 of CSI-RS resources. In that case, according to the configured order of CSI-RS resources, it can be determined that the combination of CSI-RS resources corresponding to identifier "1" includes CSI-RS resources 0 and 1, and the combination of CSI-RS resources corresponding to identifier "2" includes CSI-RS resources 2 and 3.

[0052] Optionally, the resource selection indication in the CSI report is included in each combination of CSI-RS resources

Number

Number

[0053] Furthermore, the bit width of the resource selection indication in the CSI report is

Number

Number

[0054] When the terminal processes periodic or semi-persistent CSI-RS, in order to calculate the CSI report, it is necessary to cache the sampling points in the CSI-RS or the results after processing the sampling points. CSI prediction requires the terminal to calculate the CSI at future times using the CSI-RS measured at multiple times. Therefore, the terminal needs to cache the CSI-RS sampling points or the results after processing the sampling points in multiple CSI-RS transmission occasions, which brings relatively high memory and computational complexity to the terminal. In particular, when periodic or semi-persistent CSI-RS is used to calculate the aperiodic CSI report, the aperiodic CSI report is dynamically triggered by the base station through DCI signaling. As shown in Figure 4, the terminal cannot predict at which time the base station will trigger the CSI report. Therefore, it is necessary to always be prepared for the calculation of the CSI report, and the problems of memory space and complexity are particularly serious.

[0055] For the above problems, one solution concept may be to increase the occupancy time of the CSI Processing Unit (CPU) of the CSI report, and another solution concept may be to increase the active CSI-RS resources or the number of ports occupied by the CSI report. In this way, the computational or memory complexity required by the terminal can be accurately known by network-side devices such as the base station. Network-side devices such as the base station can perform appropriate CSI and CSI-RS triggering, activation, or configuration based on the capabilities of the terminal to avoid exceeding the processing capabilities of the terminal, thereby reducing the CSI processing complexity of the terminal and achieving the purpose of controlling the terminal to calculate the memory overhead required for CSI.

[0056] Optionally, with respect to increasing the CPU occupancy time of the CSI report, the CPU occupancy time of the CSI report may be from the first time unit of the fourth resource in the first time domain position or the J-th CSI-RS transmission occasion before the CSI reference resource to 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 separated from the time domain resource where the uplink channel carrying the CSI report is located by M time units. The CSI reference resource is optionally the reference resource described in the above embodiments. The fourth resource may include a CSI-RS resource and / or a CSI-IM resource, etc. The M is a positive integer, and the J is a positive integer.

[0057] Optionally, the value of J may be determined by terminal capability report signaling and / or signaling of the network-side device. Also, the value of J may be a preset fixed value.

[0058] Optionally, with respect to increasing the number of active CSI-RS resources or ports occupied by the CSI report, each CSI-RS resource related to the CSI report may be counted as Q active CSI-RS resources, or each CSI-RS port related to the CSI report may be counted as Q active CSI-RS ports, where Q is a positive integer.

[0059] Optionally, the value of Q may be determined by terminal capability report signaling and / or signaling of the network-side device. Also, the value of Q may be a preset fixed value.

[0060] In some embodiments, the values of the above J and / or Q may be related to the configuration signaling of the base station, for example, related to the base station codebook configuration parameters. For example, the values of the above J and / or Q may be determined by a proportional value of a certain codebook configuration parameter, or may be determined by adding a proportional value of a certain codebook configuration parameter to a value determined by terminal capability reporting signaling, and the proportional value may be reported by terminal capability signaling.

[0061] Referring to FIG. 5, FIG. 5 is a flowchart of an information determination method according to an embodiment of the present application. This method is applied to a communication device, and this communication device is optionally a terminal or a network-side device, and this network-side device is, for example, a base station or the like. As shown in FIG. 5, this method includes the following steps.

[0062] Step 51: The communication device determines whether the second resource can be used for the second signaling and / or based on a preset rule to map the first target.

[0063] In this embodiment, the second resource is a resource occupied by a CSI-RS located on the first resource or the first resource set. The first target includes at least one of a first channel and a first signal. The fact that the second resource can be used to map the first target may be understood as canceling the transmission and measurement of the CSI-RS in the second resource and being able to transmit the first target using the second resource.

[0064] Optionally, the above second signaling may be signaling of a network-side device, such as downlink control information (DCI), media access control signaling (Media Access Control Control Element, MAC CE), etc. The above second signaling is The resources occupied by CSI-RS cannot be used to map the first channel, and The resources occupied by CSI-RS cannot be used to map the first signal, and The resources occupied by CSI-RS can be used to map the first channel, and The resources occupied by CSI-RS can be used to indicate at least one of the following: the resources can be used to map the first signal.

[0065] Optionally, the above first channel may include at least one of a Physical Downlink Shared Channel (PDSCH), a Physical Uplink Shared Channel (PUSCH), etc., but is not limited thereto.

[0066] Optionally, the above first signal may include, but is not limited to, Zero Power (ZP) CSI-RS, etc.

[0067] Optionally, the above preset rules may be pre-agreed, agreed by a protocol, and / or configured by the network side. For example, a network side device such as a base station can send the preset rules to the terminal by signaling.

[0068] For example, the preset rule may be that the resource occupied by the CSI-RS located on the first resource or the first resource set can be used to map the first target. Thus, based on this preset rule, it can be directly determined that the resource occupied by the CSI-RS located on the first resource or the first resource set can be used to map the first target. Furthermore, the resource occupied by the CSI-RS not located on the first resource or the first resource set cannot be used to map the first target.

[0069] Also for example, when receiving the second signaling and the second signaling indicates that the resource occupied by the CSI-RS located on the first resource or the first resource set can be used to map the first target, it can be determined that the resource occupied by the CSI-RS located on the first resource or the first resource set can be used to map the first target. When the received second signaling indicates that the resource occupied by the CSI-RS located on the first resource or the first resource set cannot be used to map the first target, it is determined that the resource occupied by the CSI-RS located on the first resource or the first resource set cannot be used to map the first target.

[0070] The information determination method of the embodiments of this application can determine whether a second resource can be used to map a first target based on a second signaling and / or a preset rule. The second resource is a resource occupied by a CSI-RS located on a first resource or a set of first resources, and the first target includes at least one of a first channel and a first signal. Thereby, the resources occupied by the CSI-RS in some resources may be used for other channels and / or signals, so that when performing CSI measurement using periodic or semi-persistent CSI-RS, the overhead of the reference signal CSI-RS is reduced, and the transmission performance of the data channel is improved.

[0071] For example, CSI prediction enables the base station to obtain the future channel state by having the terminal predict and report the CSI at a future time. For periodic or semi-persistent CSI, after the terminal predicts the CSI at a certain future time, the CSI-RS in some CSI-RS transmission occasions (or transmission periods) is no longer necessary. Therefore, the CSI-RS transmission or measurement in these resources may be cancelled, that is, the resources occupied by the CSI-RS in these resources are mapped to other channels and / or signals to reduce the CSI-RS overhead and the complexity of the terminal.

[0072] In some embodiments, the terminal can cancel the reception or measurement of a certain resource of the CSI-RS resource unit (Resource Element, RE) according to a predefined rule or base station signaling. The cancelled CSI-RS RE may be used to map the resources of other channels or signals, for example, it may be used for PDSCH or PUSCH RE mapping, or may be converted into a signal such as ZP CSI-RS.

[0073] 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 the CSI-RS REs on some resources.

[0074] - State 1: Do not cancel the CSI-RS RE, i.e., the CSI-RS RE cannot be used for resource mapping of PDSCH or other channels (e.g., PUSCH), signals. - State 2: Cancel the CSI-RS RE, and the CSI-RS RE can be used for resource mapping of PDSCH or other channels (e.g., PUSCH). - State 3: Cancel the CSI-RS RE, and the CSI-RS RE is converted to a ZP CSI-RS RE, and the CSI-RS RE may also be converted to other signal resources, e.g., it may be converted to an interference measurement resource including at least one of resources such as Channel State Information-Interference Measurement (CSI-IM), interference measurement based on Non-zero-power (NZP) CSI-RS.

[0075] In a further embodiment, the candidate values of the base station indication signaling may include only State 1 or State 2. Further, whether to include State 3 may be determined by base station configuration signaling or terminal capability signaling.

[0076] For example, an example of the base station indication signaling is shown in FIGS. 6A, 6B, and 6C. In this example, since UE1 predicts the CSI at a future time by an AI / ML algorithm, the base station can cancel the transmission and measurement of some CSI-RSs for UE1. In order to save CSI-RS overhead, the base station shares a set of CSI-RS configurations with UE2 and UE3, so canceling the CSI-RS of UE1 affects UE2 and UE3. Thus, in this example, 1) As shown in Figure 6A, the base station instructs to use the CSI-RS RE cancelled by UE1 for mapping PDSCH RE in order to improve the transmission performance of the PDSCH of UE1.

[0077] 2) As shown in Figure 6B, the CSI-RS period of UE2 is configured to be larger than the CSI-RS periods of UE1 and UE3. For example, it is twice the CSI-RS periods of UE1 and UE3. In this way, at the positions where UE2 does not receive CSI-RS, by configuring periodic ZP CSI-RS resources for UE2 to cover the CSI-RS RE here, the interference to UE2 caused by the CSI-RS here can be reduced. At this time, the CSI-RS RE cancelled by UE1 being used for PDSCH mapping does not affect UE2.

[0078] 3) UE3 originally shared CSI-RS resources with UE1 at the same period. The base station's instruction to use the CSI-RS RE of UE1 for PDSCH RE mapping affects the CSI-RS measurement of UE3. At this time, as shown in Figure 6C, at the same time, the CSI-RS of UE3 can be converted to ZP CSI-RS by this instruction signaling to remove the influence of the PDSCH transmission of UE1 on the CSI-RS measurement of UE3.

[0079] Based on the above analysis, by including the base station instruction signaling in the above three states, the RS overhead of the target UE can be reduced, the PDSCH transmission resources of the target UE can be increased, and the technical effect of not affecting other UEs can be achieved.

[0080] In an embodiment of the present application, the above-mentioned first resource or the first resource set may include, but is not limited to, at least one of a CSI-RS transmission occasion, a CSI-RS period, a CSI-RS resource, an orthogonal frequency division multiplexing (OFDM) symbol including CSI-RS, a slot resource including CSI-RS, a frequency domain resource including CSI-RS, a first channel resource scheduled by a network-side device, etc.

[0081] Optionally, the above-mentioned first resource or the first resource set may be determined based on at least one of third signaling of a network-side device (such as a base station) and a predefined rule. For example, the first resource or the first resource set is in a time window indicated by the third signaling, or is a transmission occasion of CSI-RS selected in a certain time resource set or time window by the third signaling, is an OFDM symbol including CSI-RS or a slot resource including CSI-RS, or is a resource selected in one or more resource sets by the third signaling.

[0082] Optionally, the third signaling may include at least one of upper layer signaling and downlink control information DCI. The upper layer signaling is, for example, RRC signaling, MAC signaling, etc.

[0083] Optionally, the above first resource or first resource set may include a CSI-RS transmission occasion between a second time domain resource and a third time domain resource, where the second time domain resource includes at least one of: 1) the time unit where the DCI that triggers the CSI report is located; 2) the time unit where the uplink channel that carries the CSI report is located; and 3) the previous S time units of the time unit where the uplink channel that carries the CSI report is located, where S is a positive integer. The third time domain resource includes at least one of: 1) the time unit where the uplink channel that carries the CSI report is located; 2) the time unit where the reference resource corresponding to the CSI report is located, or X time units after the time unit where the uplink channel that carries the CSI report is located (for example, a slot or an OFDM symbol), where X is a positive integer time unit; and 3) the time unit corresponding to the CSI reported by the CSI report. The time unit is, for example, a slot or an OFDM symbol, etc.

[0084] In some embodiments, the second time domain resource is the time unit where the DCI that triggers the CSI report is located. At the same time, the third time domain resource is one of the time unit where the uplink channel that carries the CSI report is located, the time unit where the reference resource corresponding to the CSI report is located, and the time unit corresponding to the CSI reported by the CSI report.

[0085] In some other embodiments, the second time domain resource is the time unit where the uplink channel that carries the CSI report is located. At the same time, the third time domain resource is one of the time unit where the reference resource corresponding to the CSI report is located and the time unit corresponding to the CSI reported by the CSI report.

[0086] In some other embodiments, the second time domain resource is the S time units before the time unit where the uplink channel carrying the CSI report is located. At the same time, the third time domain resource is one of 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, and the time unit corresponding to the CSI reported by the CSI report.

[0087] Optionally, for the first resource or the resources in the first resource set, what to granularity of the CSI-RS occupied resources (e.g., CSI-RS RE) can be cancelled may include, but is not limited to, at least one of the following.

[0088] 1) Cancel the CSI-RS RE in one or more CSI-RS transmission occasions for the CSI-RS with the CSI-RS transmission occasion as the granularity, that is, the CSI-RS RE in one or more CSI-RS transmission occasions can be used for mapping other channels or signals.

[0089] 2) Cancel the CSI-RS RE in one or more CSI-RS periods for the CSI-RS with the CSI-RS period as the granularity, that is, the CSI-RS RE in one or more CSI-RS periods can be used for mapping other channels or signals.

[0090] 3) Cancel the CSI-RS RE in one or more CSI-RS resources in one or more CSI-RS sets for the CSI-RS with the CSI-RS resource as the granularity, that is, the CSI-RS RE in one or more CSI-RS resources can be used for mapping other channels or signals.

[0091] 4) Cancel CSI-RS with OFDM symbols as the granularity, cancel the CSI-RS REs in one or more OFDM symbols at a time, that is, the CSI-RS REs in one or more OFDM symbols can be used for mapping other channels or signals.

[0092] 5) Cancel CSI-RS with slots as the granularity, cancel the CSI-RS REs in one or more slots at a time, that is, the CSI-RS REs in one or more slots can be used for mapping other channels or signals.

[0093] 6) Cancel CSI-RS with frequency-domain resources as the granularity, cancel the CSI-RS REs in one or more frequency-domain resources at a time, that is, the CSI-RS REs in one or more frequency-domain resources can be used for mapping other channels or signals. The frequency-domain resources may be sub-bands, resource blocks (RBs), resource block groups (RBGs), resource element groups (REGs), etc.

[0094] 7) Cancel CSI-RS with the allocated resources of PDSCH as the granularity, cancel the CSI-RS REs included in a certain scheduled PDSCH resource once, that is, the CSI-RS REs included in this scheduled PDSCH resource can be used for mapping other channels or signals.

[0095] It should be noted that the above (1) to (7) may be used in combination. For example, cancel the CSI-RS REs of one or more CSI-RS resources in one or more CSI-RS transmission occasions at a time, or cancel the CSI-RS REs of one or more CSI-RS resources in one or more slots (or OFDM symbols) at a time.

[0096] Furthermore, regarding which resources at which positions need to cancel the CSI-RS REs included therein, the specific method may include at least one of the following.

[0097] (1) The cancelled CSI-RS REs are located within a certain time window. For example, cancel the CSI-RS REs in all CSI-RS transmission occasions (or periods, OFDM symbols, slots) within a certain time window. The determination of the time window can determine its start time position, the length of the time window or the end time position according to the base station signaling or the agreed rules.

[0098] (2) The cancelled CSI-RS REs are located on some time resources selected from a certain time window or time resource set. For example, after determining a certain time window, select a part from the transmission occasions (or periods, OFDM symbols, slots) included in this time window by base station signaling (such as bitmap signaling), and cancel the CSI-RS REs in this selected part of the resources.

[0099] (3) The cancelled CSI-RS REs are the CSI-RS REs in some CSI-RS resources selected from one or more configured CSI-RS resource sets.

[0100] (4) The cancelled CSI-RS REs are the CSI-RS REs included in the PDSCH resources scheduled by base station signaling.

[0101] It should be noted that the above (1) to (4) may be used in combination. The base station signaling may be upper layer signaling (for example, RRC or MAC signaling), or may be physical layer signaling (for example, DCI).

[0102] Also, the above CSI-RS cancellation method may be determined by a predefined rule. For example, for a certain CSI report (for example, a CSI report of a certain specific codebook type or feedback type), CSI-RS REs between the start time position and the end time position are cancelled, where the start time position is at least one of 1) the slot or OFDM symbol where the DCI triggering the CSI report is located, 2) the slot or OFDM symbol where the uplink channel carrying the CSI report is located, and 3) the S slots or OFDM symbols before the slot or OFDM symbol where the uplink channel carrying the CSI report is located, and the end time position is at least one of 1) the slot or OFDM symbol where the uplink channel carrying the CSI report is located, 2) the slot or OFDM symbol where the CSI reference resource corresponding to the CSI report is located, or the X slots or OFDM symbols after the slot or OFDM symbol where the uplink channel carrying the CSI report is located, where X is a positive integer of slots or OFDM symbols, and 3) the slot or OFDM symbol corresponding to the CSI reported by the CSI report.

[0103] Optionally, the above second signaling may include at least one of the following.

[0104] 1) Uplink scheduling DCI, that is, DCI for scheduling an uplink channel. Here, it only indicates that this DCI can be used to schedule an uplink channel, and does not mean that this DCI has actually scheduled the transmission of one uplink channel.

[0105] In this 1), the mapping state of the resources occupied by CSI-RS may be indicated by at least one of the dedicated domain and the CSI request domain in the uplink scheduling DCI. That is, for the mapping state of the resources occupied by CSI-RS, a dedicated domain indication may be newly added to the uplink scheduling DCI, the existing domain indication may be decoded again, or it may be coded in combination with the indication of an existing domain such as the CSI request domain.

[0106] Furthermore, when the mapping state of the resources occupied by CSI-RS is indicated by the CSI request domain in the uplink scheduling DCI, the mapping state of the resources occupied by CSI-RS in the CSI trigger states can be configured. Also, the above time window information, resource information, etc. may be configured using the uplink scheduling DCI.

[0107] 2) Downlink scheduling DCI, that is, DCI for scheduling the downlink channel. Here, only the fact that this DCI can be used to schedule the downlink channel is shown, and it does not mean that this DCI has actually scheduled the transmission of a downlink channel.

[0108] In this (2), the mapping state of the resources occupied by CSI-RS may be indicated by at least one of the dedicated domain, the resource allocation domain, and the ZP CSI-RS indication domain in the downlink scheduling DCI. That is, for the mapping state of the resources occupied by CSI-RS, a dedicated domain indication may be newly added to the downlink scheduling DCI, the existing domain indication may be decoded again, or it may be coded in combination with the indication of the existing domain, such as the resource allocation domain or the ZP CSI-RS indication domain.

[0109] Furthermore, when the mapping state of the resources occupied by CSI-RS is indicated by the resource allocation domain in the downlink scheduling DCI, the mapping state of the resources occupied by CSI-RS in the resource allocation state may be configured, or when the mapping state of the resources occupied by CSI-RS is indicated by the ZP CSI-RS indication domain in the downlink scheduling DCI, the mapping state of the resources occupied by CSI-RS in the ZP CSI-RS state can be configured. Also, the above time window information, resource information, etc. may be configured using the downlink scheduling DCI.

[0110] 3) Group common DCI.

[0111] In this (3), the mapping state of the resources occupied by CSI-RS may be indicated by the dedicated domain in the group common DCI. That is, for the mapping state of the resources occupied by CSI-RS, a new group common DCI format may be added and indicated by the dedicated domain.

[0112] 4) Media access control control element MAC CE.

[0113] It should be noted that the mapping state of the resources occupied by the above CSI-RS is selectively such that at least one of the following holds: 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.

[0114] In the embodiments of the present application, for the CSI-RS RE removal instructed by the base station, a certain application time limit is required. For example, the CSI-RS REs located in at least F slots or OFDM symbols after the slot or OFDM symbol where the base station indication signaling is located can be used to map other channels or signals. That is, the above second resource is located after the time unit where the first signaling is located and is separated from the time unit where the first signaling is located by at least F time units, and F is a positive integer. The time unit is, for example, a slot or an OFDM symbol.

[0115] Optionally, when the cancelled CSI-RS is a semi-persistent CSI-RS, in the first time period, the terminal does not receive the second signaling or the terminal ignores the second signaling. At this time, the network-side device can send the second signaling. Or, in the first time period, the network-side device does not send the second signaling. Here, the starting point of the first time period is the transmission time or feedback time of the fourth signaling, and the fourth signaling is the signaling for activating the semi-persistent CSI-RS. The time length of the first time period is G time units, and G is a positive integer.

[0116] For example, for semi-persistent CSI-RS, within the time period of G length after the signaling for activating the semi-persistent CSI-RS (e.g., MAC CE signaling or DCI signaling) is transmitted or the acknowledgement / negative acknowledgement (ACK / NACK) corresponding to this signaling, the terminal cannot receive the base station instruction signaling for CSI-RS cancellation. In one example, G is an integer number of OFDM symbols or slots, and in another example, G is a time length in ms, e.g., 3 ms. Similarly, within the time period of G length after the signaling for deactivating the semi-persistent CSI-RS (e.g., MAC CE signaling or DCI signaling) is transmitted or the ACK / NACK corresponding to this signaling, the UE cannot receive the base station instruction for CSI-RS cancellation. In one example, G is an integer number of OFDM symbols or slots, and in another example, G is a time length in ms, e.g., 3 ms.

[0117] Optionally, the terminal may report information on the recommended first resource or information on the first resource set, thereby enabling the network-side device to know and perform an efficient configuration. For example, the terminal may report, in a certain CSI report, the CSI-RS RE information to be removed recommended thereby, e.g., CSI-RS resource or port information, or the time window or resource position information where the CSI-RS RE to be removed is located, etc.

[0118] Optionally, the above CSI-RS cancellation can affect the occupancy of the CSI processing unit (CPU) of the terminal and the calculation of active CSI-RS resources (e.g., ports). Therefore, it can be used to map the resources (e.g., ports) occupied by the above first target CSI-RS, that is, the cancelled CSI-RS resources (e.g., ports) are not counted in the occupancy of the CSI processing unit (CPU), or are not counted in the active CSI-RS resources (e.g., ports).

[0119] In some further examples, the CSI-RS in the above CSI-RS cancellation method may refer to CSI-RS used for performance monitoring, CSI-RS used for a Quasi-Colocation (QCL) source, or CSI-RS used for model life cycle management, etc., in addition to the CSI-RS used for CSI feedback.

[0120] Optionally, the above CSI-RS cancellation method may be used for multiple types of CSI report types, such as, for example, Channel Quality Indicator (CQI) reports, Precoding Matrix Indicator (PMI) reports, CSI-RS Resource Index (CRI) reports, Layer 1-Reference Signal Receiving Power (L1-RSRP) reports, Layer 1-Reference Signal Received Quality (L1-RSRQ) reports, Rank Indicator (RI) reports, Layer Indicator (LI) reports, etc.

[0121] The information determination method according to the embodiments of the present application may have an information determination device as the execution subject. In the embodiments of the present application, the information determination device according to the embodiments of the present application will be described by taking the execution of the information determination method by the information determination device as an example.

[0122] Referring to FIG. 7, FIG. 7 is a schematic structural diagram of an information determination device according to an embodiment of the present application. This device is applicable to a communication device, and this communication device may optionally be a terminal or a network-side device. As shown in FIG. 7, the information determination device 70 includes A first determination module 71 for determining that a reference resource related to a CSI report is in a first time domain unit, where the first time domain unit includes at least one time domain unit located at least N time units after a first time domain resource, and the first time domain resource is a time domain resource where an uplink channel carrying the CSI report is located, and N is a positive integer.

[0123] Optionally, the time domain unit includes at least one of a slot, a slot group, an OFDM symbol, and an OFDM symbol group.

[0124] Optionally, the value of N is determined by first signaling of a network - side device and / or terminal capability reporting signaling.

[0125] Optionally, the first signaling includes at least one of upper - layer signaling and DCI.

[0126] Optionally, when the first signaling includes DCI that triggers CSI, the value of N is determined by at least one of a dedicated domain and a CSI request domain in the DCI that triggers CSI.

[0127] Optionally, a CSI - RS that is not later than a first time domain position is used for the calculation of the CSI report, and a CSI - RS that is later than the first time domain position is not used for the calculation of the CSI report, where the first time domain position is a time domain position located M time units before a time domain resource where an uplink channel carrying the CSI report is located, and M is a positive integer.

[0128] Optionally, the value of M is determined by at least one of signaling of a network - side device, terminal capability reporting signaling, and predefined information.

[0129] Optionally, the first time domain position and the reference resource are located at different time domain positions.

[0130] Optionally, the CSI-RS configuration parameters related to the CSI report include at least one of L, S, and T, where L, S, and T are positive integers, L is the number of consecutive CSI-RS transmission occasions in a first set of transmission occasions, S is the number of time units of the interval between two adjacent first sets of transmission occasions, and T is the number of time units of the interval between two adjacent CSI-RS transmission occasions in the first set of transmission occasions.

[0131] Optionally, the CSI-RS resource configuration related to the CSI report includes K CSI-RS resources, and the K CSI-RS resources are associated with a combination of P CSI-RS resources, where K and P are positive integers.

[0132] Optionally, each combination of CSI-RS resources includes at least one of a set of CSI-RS resources and some resources in a set of CSI-RS resources.

[0133] Optionally, the CSI-RS resources included in each combination of CSI-RS resources are determined by at least one of an identifier of an associated combination of CSI-RS resources configured for the CSI-RS resources and the order of the CSI-RS resources in the CSI-RS resource configuration.

[0134] Optionally, the resource selection indication in the CSI report is associated with

Number

[0135] Optionally, the bit width of the resource selection indication in the CSI report is

Number

[0136] Optionally, the CPU occupancy time of the CSI report starts from the first time unit of the fourth resource in the first time domain position or the Jth CSI-RS transmission occasion before the reference resource, and ends until the CSI report transmission is completed. Here, the first time domain position is a time domain position located at the previous M time units of the time domain resource where the uplink channel carrying the CSI report is located. The fourth resource includes a CSI-RS resource and / or a channel state information interference measurement (CSI-IM) resource. M is a positive integer, and J is a positive integer.

[0137] Optionally, the value of J is determined by terminal capability report signaling and / or signaling of the network-side device.

[0138] Optionally, each CSI-RS resource related to the CSI report is counted as Q active CSI-RS resources, or each CSI-RS port related to the CSI report is counted as Q active CSI-RS ports. Q is a positive integer.

[0139] Optionally, the value of Q is determined by terminal capability report signaling and / or signaling of the network-side device.

[0140] The information determination device 70 according to the embodiment of the present application realizes each process realized by the embodiment of the method shown in FIG. 2 and can achieve the same technical effect. To avoid repetition of description, it will not be described herein again.

[0141] Referring to FIG. 8, FIG. 8 is a schematic structural diagram of an information determination device according to an embodiment of the present application. This device is applied to a communication device, and this communication device is selectively a terminal or a network-side device. As shown in FIG. 8, the information determination device 80 includes a second determination module 81 for determining whether a second resource can be used to map a first target based on a second signaling and / or a preset rule, where 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 target includes at least one of a first channel and a first signal.

[0142] Optionally, the second signaling is used to indicate that the resource occupied by the CSI-RS cannot be used to map the first channel, used to indicate that the resource occupied by the CSI-RS cannot be used to map the first signal, used to indicate that the resource occupied by the CSI-RS can be used to map the first channel, used to indicate at least one of the fact that the resource occupied by the CSI-RS can be used to map the first signal.

[0143] Optionally, the first channel includes at least one of a PDSCH and a PUSCH.

[0144] Optionally, the first signal includes a zero-power ZP CSI-RS.

[0145] Optionally, the first resource or the first resource set includes at least one of a CSI-RS transmission occasion, a CSI-RS period, a CSI-RS resource, an OFDM symbol including CSI-RS, a slot resource including CSI-RS, a frequency domain resource including CSI-RS, and a first channel resource scheduled by a network side device.

[0146] Optionally, the first resource or the first resource set is determined based on at least one of third signaling of a network side device and a predefined rule. Optionally, the third signaling includes at least one of upper layer signaling and downlink control information DCI.

[0147] Optionally, the first resource or the first resource set includes a CSI-RS transmission occasion between a second time domain resource and a third time domain resource, where the second time domain resource includes at least one of a time unit where DCI triggering a channel state information CSI report is located, a time unit where an uplink channel carrying a CSI report is located, and S time units before the time unit where an uplink channel carrying a CSI report is located, S being a positive integer, and the third time domain resource includes at least one of a time unit where an uplink channel carrying a CSI report is located, a time unit where a reference resource corresponding to the CSI report is located, and a time unit corresponding to the CSI reported by the CSI report.

[0148] Optionally, the second resource is located after the time unit where the second signaling is located and is separated from the time unit where the second signaling is located by at least F time units, F being a positive integer. The time unit is, for example, a slot or an OFDM symbol.

[0149]

[0150] ​ Optionally, the second signaling includes at least one of uplink scheduling DCI, downlink scheduling DCI, group common DCI, and media access control control element MAC CE.

[0151] Optionally, when the second signaling includes uplink scheduling DCI, the mapping state of the resources occupied by the CSI-RS is indicated by at least one of a dedicated domain and a CSI request domain in the uplink scheduling DCI. When the second signaling includes downlink scheduling DCI, the mapping state of the resources occupied by the CSI-RS is indicated by at least one of a dedicated domain, a resource allocation domain, and a ZP CSI-RS indication domain in the downlink scheduling DCI. When the second signaling includes group common DCI, the mapping state of the resources occupied by the CSI-RS is indicated by a dedicated domain in the group common DCI.

[0152] Optionally, when the mapping state of the resources occupied by the CSI-RS is indicated by a CSI request domain in the uplink scheduling DCI, the mapping state of the resources occupied by the CSI-RS in the CSI trigger state is configured. When the mapping state of the resources occupied by the CSI-RS is indicated by a resource allocation domain in the downlink scheduling DCI, the mapping state of the resources occupied by the CSI-RS in the resource allocation state is configured. When indicating the mapping state of the resources occupied by the CSI-RS by the ZP CSI-RS indication domain in the downlink scheduling DCI, configure the mapping state of the resources occupied by the CSI-RS in the ZP CSI-RS state.

[0153] Optionally, the terminal may report the information of the recommended first resource or the information of the first resource set.

[0154] Optionally, the resources occupied by the CSI-RS are not counted as resources occupied by the CSI processing unit CPU, or the resources occupied by the CSI-RS are not counted as active CSI-RS resources.

[0155] The information determination device 80 according to the embodiments of the present application realizes each process realized by the embodiment of the method shown in FIG. 5 and can achieve the same technical effect, and for the sake of avoiding repeated description, it will not be described further here.

[0156] Optionally, as shown in FIG. 9, the embodiments of the present application further provide a communication device 90, including a processor 91 and a memory 92, and a program or instruction executable on the processor 91 is stored in the memory 92. For example, when this communication device 90 is a terminal, when this program or instruction is executed by the processor 91, each step of the embodiment of the above information determination method is realized and the same technical effect can be achieved. When this communication device 90 is a network-side device, when this program or instruction is executed by the processor 91, each step of the embodiment of the above information determination method is realized and the same technical effect can be achieved. For the sake of avoiding repeated description, it will not be described further here.

[0157] Embodiments of the present application further provide a communication device, including a processor and a communication interface. The processor is used to determine whether a second resource can be used for a first target to be mapped based on a second signaling and / or a preset rule. Here, 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. The first target includes at least one of a first channel and a first signal. And / or the processor is used to determine that a reference resource related to a CSI report is in a first time domain unit. Here, the first time domain unit includes at least one time domain unit located at least N time units after a first time domain resource. The first time domain resource is a time domain resource where an uplink channel carrying the CSI report is located, and N is a positive integer. Embodiments of this device correspond to the above information determination method embodiments. Various implementation processes and implementation forms of the above method embodiments may all be applied to embodiments of this device, and similar technical effects can be achieved. To avoid repetition in the description, it will not be described further here.

[0158] Specifically, FIG. 10 is a schematic hardware structure diagram for implementing a terminal according to an embodiment of the present application.

[0159] This terminal 1000 includes at least some of the components such as a radio frequency unit 1001, a network module 1002, an audio output unit 1003, an input unit 1004, a sensor 1005, a display unit 1006, a user input unit 1007, an interface unit 1008, a memory 1009, and a processor 1010, but is not limited thereto.

[0160] As would be understood by those skilled in the art, the terminal 1000 may further include a power source (e.g., a battery) for supplying power to each component. The power source may be logically connected to the processor 1010 by a power management system, whereby functions such as charge and discharge management and power consumption management can be realized by the power management system. The terminal structure shown in FIG. 10 does not constitute a limitation on the terminal. The terminal may include more or fewer components than those shown, or a combination of some components, or a different arrangement of components, which will not be further described herein.

[0161] It should be understood that in the embodiments of the present application, the input unit 1004 may include a Graphics Processing Unit (GPU) 10041 and a microphone 10042. The graphics processor 10041 processes the image data of a still image or video obtained by an image capture device (e.g., a camera) in a video capture mode or an image capture mode. The display unit 1006 may include a display panel 10061, and the display panel 10061 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 at least one of a touch panel 10071 and other input devices 10072. The touch panel 10071 is also called a touch screen. The touch panel 10071 may include two parts: a touch detection device and a touch controller. The other input devices 10072 may include, but are not limited to, a physical keyboard, function keys (e.g., volume control buttons, switch buttons, etc.), a trackball, a mouse, and an operation lever, which will not be further described herein.

[0162] In the embodiments of the present application, after receiving downlink data from a network-side device, the radio frequency unit 1001 can transmit it to the processor 1010 for processing. Also, the radio frequency unit 1001 can transmit uplink data to the network-side device. Generally, the radio frequency unit 1001 includes, but is not limited to, an antenna, an amplifier, a transceiver, a coupler, a low-noise amplifier, a duplexer, and the like.

[0163] Memory 1009 may be used to store software programs or instructions and various data. Memory 1009 may mainly include a first storage area for storing programs or instructions and a second storage area for storing data. Here, the first storage area can store an operating system, application programs or instructions required for at least one function (such as a voice playback function, an image playback function, etc.). Also, Memory 1009 may include volatile memory or non-volatile memory, or Memory 1009 may include both volatile and non-volatile memory. Here, non-volatile memory may be a Read-Only Memory (ROM), Programmable ROM (PROM), Erasable PROM (EPROM), Electrically Erasable PROM (EEPROM) or flash memory. Volatile memory may be a Random Access Memory (RAM), Static RAM (SRAM), Dynamic RAM (DRAM), Synchronous DRAM (SDRAM), Double Data Rate SDRAM (DDRSDRAM), Enhanced SDRAM (ESDRAM), Synch link DRAM (SLDRAM) and Direct Rambus RAM (DRRAM). The Memory 1009 in the embodiments of the present application includes these and any other suitable types of memory, but is not limited thereto.

[0164] Processor 1010 may include one or more processing units. Optionally, processor 1010 integrates an application processor and a modem processor. Here, the application processor mainly processes operations related to the operating system, user interface, application programs, etc., and the modem processor mainly processes wireless communication signals, for example, a baseband processor. As can be understood, the above modem processor may not be integrated into processor 1010.

[0165] Here, processor 1010 is used to determine whether a second resource can be used by a second signaling and / or based on a preset rule for mapping a first target. Here, 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 target includes at least one of a first channel and a first signal. And / or processor 1010 is used to determine that a reference resource related to a CSI report is in a first time domain unit. Here, the first time domain unit includes at least one time domain unit located at least N time units after a first time domain resource, and the first time domain resource is a time domain resource where an uplink channel carrying the CSI report is located, and N is a positive integer.

[0166] The terminal 1000 according to the embodiments of the present application realizes each process realized by the embodiments of the above information determination method and can achieve the same technical effects. To avoid repeated description, it will not be described further here.

[0167] Specifically, the embodiments of the present application further provide a network-side device. As shown in FIG. 11, this network-side device 110 includes an antenna 111, a radio frequency device 112, a baseband device 113, a processor 114, and a memory 115. The antenna 111 and the radio frequency device 112 are connected. In the uplink direction, the radio frequency device 112 receives information via 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, transmits it to the radio frequency device 112, and the radio frequency device 112 processes the received information and then sends it out via the antenna 111.

[0168] In the above embodiments, the method executed by the network-side device may be implemented in the baseband device 113, and this baseband device 113 includes a baseband processor.

[0169] The baseband device 113 may include, for example, at least one baseband board, and a plurality of chips are installed on this baseband board. As shown in FIG. 11, one of the chips is, for example, a baseband processor, which is connected to the memory 115 via a bus interface, calls a program in the memory 115, and executes the network device operations shown in the embodiments of the above method.

[0170] This network-side device may further include a network interface 116, and this interface is, for example, a common public radio interface (CPRI).

[0171] Specifically, the network-side device 110 of the embodiment of the present application further includes instructions or programs stored in the memory 115 and executable on the processor 114. The processor 114 calls the instructions or programs in the memory 115, executes the methods executed by each module shown in FIGS. 7 and / or 8, and can achieve the same technical effects. To avoid repetition of the description, it will not be further described herein.

[0172] The embodiment of the present application further provides a readable storage medium, on which a program or instructions are stored. When the program or instructions are executed by a processor, each process of the embodiment of the above information determination method is realized, and the same technical effects can be achieved. To avoid repetition of the description, it will not be further described herein.

[0173] Here, the processor is the processor in the terminal described in the above embodiment. This readable storage medium includes a computer-readable storage medium, such as a computer read-only memory ROM, a random access memory RAM, a magnetic disk, or an optical disk.

[0174] The embodiment of the present application further provides a chip, which includes a processor and a communication interface. The communication interface is coupled to the processor. The processor executes a program or instructions and is used to realize each process of the embodiment of the above information determination method, and can achieve the same technical effects. To avoid repetition of the description, it will not be further described herein.

[0175] It should be understood that the chip mentioned in the embodiment of the present application may also be called a system-level chip, a system-on-chip, a chip system, or a system-on-a-chip, etc.

[0176] Embodiments of the present application further provide a computer program / program product, where the computer program / program product is stored in a storage medium, and the computer program / program product is executed by at least one processor to implement each process of the embodiment of the above information determination method and achieve the same technical effect. To avoid repetition of the description, it will not be described further here.

[0177] Embodiments of the present application further provide a communication system including a terminal and a network-side device, where the terminal and the network-side device may be used to execute the steps of the information determination method described in the first aspect and / or execute the steps of the method described in the second aspect.

[0178] As can be appreciated by those skilled in the art, the units and algorithm steps of each example described in combination with the embodiments disclosed in this specification can be implemented by electronic hardware, or a combination of computer software and electronic hardware. These functions are determined to be executed by hardware or software according to the specific application and design constraint conditions of the technical solution. Those skilled in the art can use different methods for each specific application to implement the described functions, but such implementation should not be considered to exceed the scope of the present disclosure.

[0179] For the convenience and brevity of description, those skilled in the art can refer to the corresponding processes in the embodiments of the foregoing method for the specific operation processes of the systems, devices, and units described above, and it can be clearly understood that no further description will be provided here.

[0180] In the embodiments provided in this application, it should be understood that the disclosed devices and methods can be implemented in other ways. For example, the embodiments of the devices described above are merely exemplary. For example, the division of the said units is merely a division of logical functions. When actually implemented, for example, a plurality of units or groups may be combined or integrated with other systems, or some features may be ignored or not executed, and there may be other division methods. On the other hand, the couplings or direct couplings or communication connections shown or discussed between each other may be indirect couplings or communication connections through some interfaces, devices or units, and may be electrical, mechanical or other ways.

[0181] The units described as the separated components may or may not be physically separated. The components shown as units may or may not be physical units, that is, they may be located in one place or distributed in multiple network units. The purpose of this embodiment can be realized by selecting some or all of the units according to actual needs.

[0182] Also, each functional unit in each embodiment of the present disclosure may be integrated into one processing unit, each unit may exist physically alone, or two or more units may be integrated into one unit.

[0183] The above functions are implemented in the form of software function units. When sold or used as an independent product, they can be stored in a computer-readable storage medium. Based on such understanding, the technical solution of the present disclosure, in essence, or the part that contributes to the related art, or a part of the technical solution, can be embodied in the form of a software product. This computer storage medium is stored in one storage medium and includes several instructions for a computer device (which may be a personal computer, a server, or a network device, etc.) to execute all or some of the steps of the above methods of various embodiments of the present disclosure. The above-mentioned storage medium includes various media that can store program codes, such as USB flash disks, portable hard disks, ROM, RAM, magnetic disks, or optical disks.

[0184] As can be understood by those skilled in the art, realizing all or part of the flow in the method of the above embodiments can be completed by controlling the related hardware through a computer program. The above program may be stored in a computer-readable storage medium, and when the program is executed, it may include the flow of the above embodiments of each method. Here, the above-mentioned storage medium may be a magnetic disk, an optical disk, a read-only memory (ROM), or a random access memory (RAM), etc.

[0185] It should be noted that in this specification, the term "comprising", "being included" or any other variation thereof is intended to cover non-exclusive "including", so that a process, method, article or device comprising a series of elements not only includes those elements, but also includes other elements not explicitly listed, or elements specific to such a process, method, article or device. In the absence of further limitations, for an element limited by the phrase "comprising one...", it is not excluded that there are other same elements in the process, method, article or device comprising this element. It should be pointed out that the scope of the method and device in the embodiments of this application is not limited to executing functions in the order shown or discussed, but may include executing functions in a basically simultaneous manner or in the reverse order based on the relevant functions. For example, a method described in a procedure different from the described one may be executed, and additions, omissions or combinations may be made for various steps. Also, features described with reference to some examples can be combined in other examples.

[0186] As can be clearly understood by those skilled in the art from the description of the above embodiments, the method of the above examples can be realized by means of software and the necessary general-purpose hardware platform. Of course, it may also be realized by hardware, but in many cases, the former is a more preferred embodiment. Based on such an understanding, the technical solution of this application may be embodied in the form of a computer software product in essence or in the part that contributes to the prior art. This computer software product is stored in a storage medium (such as ROM / RAM, magnetic disk, optical disk), and includes several instructions for causing a terminal (which may be a mobile phone, computer, server, air conditioner, or network device, etc.) to execute the methods described in each embodiment of this application.

[0187] The above has described the embodiments of the present application while referring to the drawings. However, the present application is not limited to the above specific embodiments. The above specific embodiments are merely exemplary and not restrictive. Those skilled in the art can make many forms without departing from the spirit of the present application and the scope protected by the claims, and all of them belong to the protection scope of the present application.

Claims

1. An information determination method, wherein the communication device includes determining that a reference resource related to a CSI report is in a first time domain unit, where the first time domain unit includes at least one time domain unit located at least N time units after a first time domain resource, the first time domain resource is a time domain resource where an uplink channel carrying the CSI report is located, and N is a positive integer. The information determination method.

2. The time domain unit includes at least one of a slot, a slot group, an OFDM symbol, and an OFDM symbol group, according to the method of claim 1.

3. The value of N is determined by a first signaling of a network side device and / or a terminal capability report signaling, according to the method of claim 1.

4. The first signaling includes at least one of a higher layer signaling and a DCI, according to the method of claim 3.

5. When the first signaling includes a DCI that triggers CSI, the value of N is determined by at least one of a dedicated domain and a CSI request domain in the DCI that triggers CSI, according to the method of claim 4.

6. A CSI-RS not later than a first time domain position is used for the calculation of the CSI report, and a CSI-RS later than the first time domain position is not used for the calculation of the CSI report, where the first time domain position is a time domain position located M time units before a time domain resource where an uplink channel carrying the CSI report is located, and M is a positive integer, according to the method of claim 1.

7. The value of M is determined by at least one of a signaling of a network side device, a terminal capability report signaling, and a predefined information, according to the method of claim 6.

8. The first time domain position and the reference resource are located at different time domain positions, according to the method of claim 6.

9. The CSI-RS configuration parameter related to the CSI report includes at least one of L, S, and T, Here, L, S, and T are positive integers, where L is the number of consecutive CSI-RS transmission occasions in the first set of transmission occasions, S is the number of time units of the interval between two adjacent first sets of transmission occasions, and T is the number of time units of the interval between two adjacent CSI-RS transmission occasions in the first set of transmission occasions. The method according to claim 1.

10. The CSI-RS resource configuration related to the CSI report includes K CSI-RS resources, and the K CSI-RS resources are associated with a combination of P CSI-RS resources, where K and P are positive integers. The method according to claim 1.

11. Each combination of the CSI-RS resources includes at least one of a set of CSI-RS resources and some resources in a set of CSI-RS resources. The method according to claim 10.

12. The CSI-RS resources included in each combination of the CSI-RS resources are an identifier of an associated combination of CSI-RS resources configured for the CSI-RS resources, and determined by at least one of the order of the CSI-RS resources in the CSI-RS resource configuration. The method according to claim 10.

13. The resource selection indication in the CSI report is related to the 【Number 1】 number of resources included in each combination of the CSI-RS resources. The method according to claim 10.

14. The bit width of the resource selection indication in the CSI report is 【Number 2】 . The method according to claim 13.

15. The CPU occupancy time of the CSI report starts from the first time unit of the fourth resource in the first time domain position or the J-th CSI-RS transmission occasion before the reference resource until 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. 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. The method according to claim 1.

16. The method according to claim 15, wherein the value of J is determined by terminal capability reporting and / or signaling of a network-side device.

17. The method according to claim 1, wherein each CSI-RS resource related to the CSI report is counted as Q active CSI-RS resources, or each CSI-RS port related to the CSI report is counted as Q active CSI-RS ports, and Q is a positive integer.

18. The method according to claim 17, wherein the value of Q is determined by terminal capability reporting and / or signaling of a network-side device.

19. An information determination device, comprising a first determination module for determining that a reference resource related to a CSI report is in a first time domain unit, where the first time domain unit includes at least one time domain unit located at least N time units after a first time domain resource, the first time domain resource is a time domain resource where an uplink channel carrying the CSI report is located, and N is a positive integer.

20. A communication device comprising a processor and a memory, the memory storing a program or instruction executable on the processor, and when the program or instruction is executed by the processor, implementing the steps of the information determination method according to any one of claims 1 to 18.

21. A readable storage medium storing a program or instruction, and when the program or instruction is executed by a processor, implementing the steps of the information determination method according to any one of claims 1 to 18.

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