Measurement method, device and system

Abstract

A measurement method comprises: a terminal device (130) receiving first information (S1401) and second information (S1403) from a network device, and determining a first resource (S1402) according to the first information, and determining a second resource (S1404) according to the second information, the first resource being a resource configured by the network device for measurement, the second resource being a resource having a priority higher than that of the first resource, and the second resource being a resource having a priority higher than that of the first resource; if the second resource can be a rate matching resource or a preemptive resource indicated by the PI. Furthermore, the terminal device (130) determines a third resource according to the first resource and the second resource (S1405), and measures on the third resource (S1410), the third resource comprising a part or all of the first resource except the first overlapping resource, and the first overlapping resource being an overlapping resource of the first resource and the second resource. That is, the terminal device (130) does not make measurements at least on overlapping resources of the first resource and the second resource. The measurement method can avoid interference of other signals on measurement resources and improve the measurement performance.

Description

[0001] This application is a divisional application. The application number of the original application is 201980100821.3, and the original application date is October 22, 2019. The entire contents of the original application are incorporated into this application by reference. Technical Field

[0002] The present application relates to the field of wireless communication technology, and in particular to a measurement method, device and system. Background Art

[0003] In the fifth generation (5G) mobile communication system, the new radio (NR) system defines some resources that cannot be used to send physical downlink shared channels (PDSCH), which are called rate matching resources. This part of resources can be used for forward and backward compatibility of the NR system, such as periodically allocating some resources in the NR resources for use by a future system or function. In addition, the International Telecommunication Union (ITU) has defined three major application scenarios for the NR system and future mobile communication systems, including: enhanced mobile broadband (eMBB), ultra-reliable and low latency communications (URLLC) and massive machine type communications (mMTC). Among them, the main characteristics of URLLC services are ultra-high reliability, low latency, small amount of transmitted data and burstiness.

[0004] Since rate matching resources are for forward and backward compatibility, URLLC services require ultra-high reliability and low latency, so their priority may be relatively high, and if the rate matching resources or the PDSCH resources carrying URLLC service data overlap with the measurement resources, the measurement resources will be more affected by interference. In the present application, the measurement resources can be, for example, non-zero power (NZP) channel state information (CSI)-reference signal (RS) resources or CSI-interference measurement (IM) resources.

[0005] For example, if the NZP CSI-RS resource of a terminal device overlaps with the PDSCH resource carrying the URLLC service data of other terminal devices, the NZP CSI-RS on the NZP CSI-RS resource and the URLLC service data on the PDSCH resource will interfere with each other. If the CSI-IM resource of a terminal device overlaps with the PDSCH resource carrying the URLLC service data of other terminal devices, the interference measurement on the CSI-IM resource will be interfered by the URLLC service data on the PDSCH resource, thereby affecting the accuracy of the interference measurement of the terminal device. In the present application, the overlap of two resources can be partial overlap or complete overlap.

[0006] Or, for example, if the NZP CSI-RS resource of a terminal device overlaps with the rate matching resource, the NZP CSI-RS on the NZP CSI-RS resource and the signal used for forward or backward compatibility on the rate matching resource will interfere with each other; if the CSI-IM resource of a terminal device overlaps with the rate matching resource, the interference measurement on the CSI-IM resource will be interfered by the signal used for forward or backward compatibility on the rate matching resource, thereby affecting the accuracy of the interference measurement of the terminal device.

[0007] To solve the above problems, it is possible to ensure that NZP CSI-RS resources / CSI-IM resources and rate matching resources / PDSCH resources carrying URLLC service data do not overlap during base station scheduling. However, NZP CSI-RS resources and CSI-IM resources may be periodic or semi-persistent (SP), the scheduling of URLLC service data is relatively random, and rate matching resources need to be flexibly configured based on forward and backward compatible application scenarios. Therefore, ensuring that NZP CSI-RS resources / CSI-IM resources and rate matching resources / PDSCH resources carrying URLLC service data do not overlap may increase scheduling complexity and reduce scheduling flexibility. Summary of the invention

[0008] The embodiments of the present application provide a measurement method, device, and system, which can avoid interference from other signals on measurement resources and improve measurement performance.

[0009] To achieve the above objectives, the embodiments of the present application adopt the following technical solutions:

[0010] In the first aspect, a measurement method is provided, and the communication device executing the method can be a terminal device or a module applied to the terminal device, such as a chip. The following description is taken as an example in which the execution subject is a terminal device. The terminal device receives the first information and the second information from the network device, and determines the first resource according to the first information, and determines the second resource according to the second information. Further, the terminal device determines the third resource according to the first resource and the second resource, and the third resource includes part or all of the resources in the first resource except the first overlapping resource, and the first overlapping resource is the overlapping resource of the first resource and the second resource. Finally, the terminal device performs measurement on the third resource. Based on the measurement method provided in the embodiment of the present application, measurement can be performed on part or all of the resources in the first resource except the first overlapping resource. That is to say, no measurement is performed on the overlapping resources of the first resource and the second resource, or on the overlapping resources of the first resource and the second resource and the related resources of the overlapping resources, so the problem of reduced measurement performance caused by interference from other signals on the measurement resources can be avoided.

[0011] In one possible design, the second information is configuration information of the rate matching resource, and the second resource is the rate matching resource; or, the second information is the preemption indication PI, and the second resource is the preemption resource indicated by the PI.

[0012] In one possible design, the third resource is a resource in the first resource that does not overlap with the fourth resource, the fourth resource includes resources within a first frequency domain range on a first time domain symbol in the first resource, the first time domain symbol is a time domain symbol in the time domain resources corresponding to the first overlapping resource, the first frequency domain range includes the frequency domain range where the second overlapping resource is located, and the second overlapping resource is an overlapping resource on the first time domain symbol in the first overlapping resource.

[0013] In one possible design, the fourth resource also includes resources within the first frequency domain range on the second time domain symbol in the first resource, and the second time domain symbol is a time domain symbol having a time domain code division multiple access (CDM) relationship with the second overlapping resource. That is to say, considering the code division multiplexing resources, if the measurement signal transmitted on each of the N REs is the signal superposition of the measurement signals of the N antenna ports after orthogonal code processing, then at the receiving end, the measurement signals on the N REs must be completely received in order to process the measurement signals corresponding to the N antenna ports. Therefore, if the fourth resource includes resources within the first frequency domain range on the first time domain symbol in the first resource, the fourth resource may also include resources within the first frequency domain range on the second time domain symbol in the first resource, and the second time domain symbol is a time domain symbol having a time domain code division multiple access (CDM) relationship with the second overlapping resource. Since the second time domain symbol is a time domain symbol having a time domain code division multiple access (CDM) relationship with the second overlapping resource, that is, the resources within the first frequency domain range on the second time domain symbol in the first resource and the resources within the first frequency domain range on the first time domain symbol in the first resource have a time domain CDM relationship, the measurement signals carried on the resources within the first frequency domain range on the first time domain symbol in the first resource and the resources within the first frequency domain range on the second time domain symbol in the first resource are mapped to multiple antenna ports through CDM. When the measurement signals carried on the resources within the first frequency domain range on the first time domain symbol in the first resource are punctured, the measurement signals carried on the resources within the first frequency domain range on the second time domain symbol in the first resource cannot be correctly demodulated. Based on this solution, since the fourth resource also includes the resources within the first frequency domain range on the second time domain symbol in the first resource, the problem that the receiving side cannot correctly demodulate the complete measurement signal can be avoided, thereby improving the measurement performance.

[0014] In one possible design, when the measurement is a broadband measurement, the first frequency domain range is the frequency domain range corresponding to the first resource; or, when the measurement is a subband measurement, the first frequency domain range is the frequency domain range corresponding to the subband where the second overlapping resource is located.

[0015] In one possible design, the time domain resource of the first resource is no later than the time domain position of the CSI reference resource corresponding to the channel state information CSI report, and when the second resource is the preempted resource indicated by the PI, the time domain position of the CSI reference resource is the downlink time slot nNK, μ DL and μ ULThey are the index of the downlink subcarrier spacing SCS and the index of the uplink SCS, respectively, N is determined according to the parameters in the first information, N and K are both non-negative integers, and n' is the time slot index for sending the CSI report. That is to say, considering that when the second resource is the preempted resource indicated by PI, the preempted resource indicated by PI can be obtained through the DCI carrying PI, and one CSI report corresponds to one CSI reference resource, and the measurement resource used by this CSI report is no later than this CSI reference resource. This may cause the measurement to be started on the resource whose time domain position is no later than the time domain position of the existing CSI reference resource, but it is necessary to wait until the PI is parsed and the overlapping resources of the first resource and the second resource are known before the actual measurement can be started, resulting in the problem that the CSI report obtained based on the resource whose time domain position is no later than the existing CSI reference resource is too late to be sent on the corresponding uplink time slot n'. Based on this, in an embodiment of the present application, the time domain position of the CSI reference resource is defined as the downlink time slot nNK, which is K time slots earlier than the time domain position of the existing CSI reference resource, the downlink time slot nN. Therefore, the CSI report obtained based on the resource with a time domain position no later than the existing CSI reference resource can be sent in time on the corresponding uplink time slot n'.

[0016] In a possible design, the terminal device receives third information from the network device, and the third information indicates the value of K; or the terminal device determines the value of K according to the processing time of the physical downlink control channel and / or the time domain period of the PI. That is to say, in the embodiment of the present application, the value of K can be determined by the terminal device according to relevant parameters and predetermined rules, or it can be determined by the network device and sent to the terminal device.

[0017] In a second aspect, a measurement method is provided, and a communication device executing the method may be a network device or a module applied in the network device, such as a chip. The following description is made by taking the execution subject as a network device as an example. The network device sends first information and second information, the first information indicating a first resource, and the second information indicating a second resource. The network device determines a third resource based on the first resource and the second resource, and the third resource includes part or all of the resources in the first resource except the first overlapping resource, wherein the first overlapping resource is an overlapping resource of the first resource and the second resource. Finally, the network device sends a measurement signal on the third resource, or the network device determines not to send a signal on the third resource. Since this method is a network-side method corresponding to the measurement method provided in the first aspect, it can also achieve the beneficial effects that can be achieved by the measurement method provided in the first aspect.

[0018] In one possible design, the second information is configuration information of the rate matching resource, and the second resource is the rate matching resource; or, the second information is the preemption indication PI, and the second resource is the preemption resource indicated by the PI.

[0019] In one possible design, the third resource is a resource in the first resource that does not overlap with the fourth resource, the fourth resource includes resources within a first frequency domain range on a first time domain symbol in the first resource, the first time domain symbol is a time domain symbol in the time domain resources corresponding to the first overlapping resource, the first frequency domain range includes the frequency domain range where the second overlapping resource is located, and the second overlapping resource is an overlapping resource on the first time domain symbol in the first overlapping resource.

[0020] In one possible design, the fourth resource also includes resources within the first frequency domain range on the second time domain symbol in the first resource, and the second time domain symbol is a time domain symbol having a time domain code division multiple access (CDM) relationship with the second overlapping resource.

[0021] In one possible design, when the measurement is a broadband measurement, the first frequency domain range is the frequency domain range corresponding to the first resource; or, when the measurement is a subband measurement, the first frequency domain range is the frequency domain range corresponding to the subband where the second overlapping resource is located.

[0022] In one possible design, the time domain resource of the first resource is no later than the time domain position of the CSI reference resource corresponding to the channel state information CSI report, and when the second resource is the preempted resource indicated by the PI, the time domain position of the CSI reference resource is the downlink time slot nNK, μ DL and μ UL They are the index of the downlink subcarrier spacing SCS and the index of the uplink SCS respectively, N is determined according to the parameters in the first information, N and K are both non-negative integers, and n' is the timeslot index for sending the CSI report.

[0023] In one possible design, the network device sends third information to the terminal device, where the third information indicates the value of K.

[0024] In a third aspect, a communication device is provided for implementing the above-mentioned various methods. The communication device includes a module, unit, or means corresponding to the above-mentioned method, and the module, unit, or means can be implemented by hardware, software, or by hardware executing the corresponding software. The hardware or software includes one or more modules or units corresponding to the above-mentioned functions.

[0025] In a fourth aspect, a communication device is provided, comprising: a processor and an interface circuit, the interface circuit being used to receive signals from other communication devices outside the communication device and transmit them to the processor or to send signals from the processor to other communication devices outside the communication device, the processor being used to implement any of the above methods through logic circuits or execution code instructions.

[0026] In a possible design, the communication device further includes a memory. The memory is used to store computer instructions, and when the processor executes the instructions, the communication device executes the method described in any one of the above aspects.

[0027] In a fifth aspect, a communication device is provided, comprising: a processor; the processor is used to couple with a memory, and after reading instructions in the memory, execute the method described in any of the above aspects according to the instructions.

[0028] In a possible design, the communication device further includes a memory, which is used to store necessary program instructions and data. When the communication device is a chip system, it can be composed of a chip, or it can include a chip and other discrete devices.

[0029] In a sixth aspect, a computer-readable storage medium is provided, wherein instructions are stored in the computer-readable storage medium. When the instructions are executed by a communication device, the communication device implements the method described in any one of the above aspects.

[0030] In a seventh aspect, a computer program product comprising instructions is provided, which, when executed by a communication device, enables the communication device to implement the method described in any one of the above aspects.

[0031] Among them, the technical effects brought about by any design method in the third to seventh aspects can refer to the technical effects brought about by different design methods in the above-mentioned first or second aspects, and will not be repeated here.

[0032] In an eighth aspect, a communication system is provided, which includes a communication device for implementing the method described in the first aspect and a communication device for executing the method described in the second aspect. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] Figure 1 A schematic diagram of preemption of existing URLLC service data;

[0034] Figure 2 The location of the time-frequency resources indicated by the existing PI Figure 1 ;

[0035] Figure 3 The location of the time-frequency resources indicated by the existing PI Figure 2 ;

[0036] Figure 4 is a schematic diagram of an existing rate matching pattern;

[0037] Figure 5 Schematic diagram of existing CSI-RS resource mapping Figure 1 ;

[0038] Figure 6 Schematic diagram of existing CSI-RS resource mapping Figure 2 ;

[0039] Figure 7 Schematic diagram of existing CSI-RS resource mapping Figure 3 ;

[0040] Figure 8 Schematic diagram of existing CSI-RS resource mapping Figure 4 ;

[0041] Fig. 9 Schematic diagram of existing CSI-RS resource mapping Figure 5 ;

[0042] Fig.10 A schematic diagram of the location of reference resources of existing CSI;

[0043] Fig.11 A schematic diagram of the architecture of a communication system provided in an embodiment of the present application;

[0044] Fig.12 A schematic diagram of the structure of a terminal device and a network device provided in an embodiment of the present application;

[0045] Fig.13 Another schematic diagram of the structure of a terminal device provided in an embodiment of the present application;

[0046] Fig.14 A flow chart of a measurement method provided in an embodiment of the present application;

[0047] Fig.15 The location of the second overlapping resource provided in the embodiment of the present application is shown in FIG. Figure 1 ;

[0048] Fig.16 The location of the second overlapping resource provided in the embodiment of the present application is shown in FIG. Figure 2 ;

[0049] Fig.17 The location of the second overlapping resource provided in the embodiment of the present application is shown in FIG. Figure 3 ;

[0050] Fig.18 A schematic diagram of the location distribution of the first resource and the second resource provided in an embodiment of the present application;

[0051] Fig.19 A schematic diagram of the structure of the communication device provided in the embodiment of the present application Figure 1 ;

[0052] Fig. 20 A schematic diagram of the structure of the communication device provided in the embodiment of the present application Figure 2 . DETAILED DESCRIPTION

[0053] In order to facilitate understanding of the technical solutions of the embodiments of the present application, a brief introduction to the relevant technologies or terms of the present application is first given as follows.

[0054] First, the three major application scenarios of NR system

[0055] Typical eMBB services include ultra-high-definition video, augmented reality (AR), virtual reality (VR), etc. The main features of these services are large data transmission volume and high transmission rate. Typical URLLC services include wireless control in industrial manufacturing or production processes, motion control of driverless cars and drones, and tactile interactive applications such as remote repair and remote surgery. The main features of these services are ultra-high reliability, low latency, small data transmission volume and burstiness. Typical mMTC services include smart grid distribution automation, smart cities, etc. The main features are a huge number of networked devices, small data transmission volume, and data insensitivity to transmission delay. These services need to meet the requirements of low cost and very long standby time.

[0056] Second, URLLC services and eMBB services coexist

[0057] Since the generation of URLLC service data is sudden and random, no data packets may be generated for a long time, or multiple data packets may be generated in a short time. Therefore, the characteristics of URLLC service data will affect the resource allocation method of the communication system. The resources here include but are not limited to: time domain symbols, frequency domain resources, time-frequency resources, codeword resources, and beam resources. Usually, the resource allocation of the communication system is completed by the base station, and the base station is used as an example below. If the base station allocates resources for URLLC service data by reserving resources, system resources are wasted when there is no URLLC service data. Moreover, the short delay characteristics of the URLLC service require that the data packet be transmitted in a very short time, so the base station needs to reserve a large enough bandwidth for the URLLC service data, which leads to a serious decline in system resource utilization.

[0058] Since the amount of eMBB service data is relatively large and the transmission rate is relatively high, a longer time scheduling unit is usually used for data transmission to improve transmission efficiency. For example, a time slot with a 15kHz subcarrier spacing corresponds to 14 time domain symbols, and the corresponding time length is 1 millisecond (ms). URLLC service data usually uses a shorter time scheduling unit to meet the needs of ultra-short delay. For example, 2 time domain symbols with a 15 kilohertz (kHz) subcarrier spacing correspond to a time length of 0.14ms, or a time slot with a 60kHz subcarrier spacing corresponds to 14 time domain symbols, and the corresponding time length is 0.25ms.

[0059] Due to the burstiness of URLLC service data, in order to improve system resource utilization, the base station usually does not reserve resources for downlink data transmission of URLLC services. When URLLC service data arrives at the base station, if there are no idle time and frequency resources at this time, in order to meet the ultra-short latency requirements of the URLLC service, the base station cannot wait for the scheduled eMBB service data to be transmitted before scheduling the URLLC service data. The base station can use preemptive mode to allocate resources for URLLC service data. Figure 1 As shown, the preemption here means that the base station selects part or all of the time-frequency resources on the time-frequency resources that have been allocated for transmitting eMBB service data for transmitting URLLC service data. Of course, the base station does not send eMBB service data on the time-frequency resources used to transmit URLLC service data.

[0060] It should be noted that the time domain symbol in the embodiment of the present application may also be referred to as a symbol, which may be, for example, an orthogonal frequency division multiplexing (OFDM) symbol in a long term evolution (LTE) system or an NR system, a discrete Fourier transform spread OFDM (DFT-s-OFDM) symbol, or other symbols in future mobile communication systems. Unless otherwise specified, the symbols in the embodiments of the present application refer to time domain symbols.

[0061] Third, pre-emption indication (PI)

[0062] eMBB service data resources may be preempted by bursty URLLC service data resources. If the terminal device receiving eMBB service data does not know that its data resources are preempted, it may demodulate and decode the URLLC service data as its own data, resulting in decoding failure. More seriously, for the transmission block that failed to decode, the terminal device will store the soft value interfered by the URLLC and combine the soft value with the retransmitted data for decoding, resulting in decoding errors during retransmission. To solve this problem, the NR system introduces PI. The PI is carried in the public downlink control information (DCI) and is represented by a 14-bit bitmap. Among them, the bitmap indicates one or more frequency domain parts (N>=1) and / or one or more time domain parts (M>=1), and {M, N} can take the value of {14, 1} or {7, 2}. That is to say, the time-frequency resources are first divided into blocks, which are known to both the base station and the terminal device. Then the base station sends a PI in the form of a bitmap to inform the terminal device whether each block of resources is preempted by URLLC service data.

[0063] Currently, the transmission period of DCI carrying PI is configured by high-level parameters in time slots. Assume that the transmission period of DCI carrying PI is T INT time slots, the time-frequency range indicated by each 14-bit PI is:

[0064] Frequency domain: all resource blocks (RBs) in the entire activated bandwidth part (BWP), denoted as B INT RBs.

[0065] Time domain: N INT time domain symbols. INT The time domain symbol is before the first time domain symbol of the physical downlink control channel (PDCCH) corresponding to the DCI carrying the PI time domain symbols. Among them, T INT The detection period of PI configured by the high-level layer. is the number of symbols per time slot, μ INT is the subcarrier spacing index corresponding to the BWP of the terminal device receiving DCI, and μ is the subcarrier spacing index corresponding to the activated BWP on the serving cell applying this PI. In addition, if time division duplex (TDD) is configured, then N INT The value is equal to Subtract the number of UL time domain symbols indicated in the higher layer signaling TDD-UL-DL-configuration common or TDD-UL-DL-configuration common. For example, Figure 2 As shown, the frequency domain range indicated by PI is the entire BWP, and the N indicated by PI is INT time domain symbols is 28 time domain symbols. Or, for example, for TDD configuration, such as Figure 3 As shown, the frequency domain range indicated by PI is the entire BWP, and the N indicated by PI is INT time domain symbols is 18 time domain symbols.

[0066] At present, according to the high-level parameter configuration, there are two ways to divide the time-frequency resources corresponding to PI, and the time-frequency sub-resources corresponding to each bit in the 14 bits are also different. In one possible way, the time-frequency block is divided into 14 parts in time, and is not divided in frequency, corresponding to {14, 1}. Among them, for the 14-bit PI, each bit corresponds to a time-frequency sub-resource. In another possible way, the time-frequency block is divided into 7 parts in time and is divided into 2 parts in frequency, corresponding to {7, 2}. Among them, for the 14-bit PI, every 2 bits are divided into a group, for a total of seven groups. A bit in the bitmap is 0 to indicate that the user can have transmission on the time-frequency resource (it can also be understood as not being preempted by the URLLC data resource); a bit is 1 to indicate that the user has no transmission on the time-frequency resource.

[0067] Fourth, resources that cannot be used to send PDSCH

[0068] In the NR system, some resources that cannot be used to send PDSCH are defined, which are called rate matching resources. This part of the resources can be used for forward or backward compatibility of the NR system, for example, part of the resources in the NR resources are periodically allocated for use by a future system or a function. If these resources intersect with the PDSCH time-frequency resource block confirmed according to the DCI, the intersecting resources are not used to transmit PDSCH. At present, the resources that cannot be used to send PDSCH defined by the NR system are divided into three categories, including: RB symbol-level resources, resource element (RE)-level resources, and synchronization signal (SS) / physical broadcast channel (PBCH) block (SS / PBCH block, SSB) resources. Among them, the following embodiments of the present application are mainly described in conjunction with the RB symbol-level resources, which are explained uniformly here and will not be repeated below.

[0069] For RB symbol-level resources that cannot be used to send PDSCH, each BWP of a terminal device can be configured with up to 4 BWP-level rate matching patterns, and each serving cell can be configured with up to 4 cell-level rate matching patterns. Currently, a rate matching pattern can include:

[0070] A pair of reserved resources configured by the network device, the pair of reserved resources includes an RB-level bitmap, and a symbol-level bitmap with a length of 2 slots. Among them, if the bit value of the RB-level bitmap and the symbol-level bitmap is 1, it means that the corresponding resources cannot be used to send PDSCH. For each pair of RB-level bitmap and symbol-level bitmap, a periodicity and pattern can be configured, and each bit in the periodicity and pattern corresponds to a symbol-level bitmap. Among them, if the bit value in the periodicity and pattern is 1, it means that there is a reserved resource pair in this unit. For example, assuming that the periodicity and pattern is 10, the RB-level bitmap is 00110...11, and the symbol-level bitmap is 10...11 01...10, then the corresponding resource positions that cannot be used to send PDSCH can be as follows Figure 4 shown.

[0071] It should be noted that in the embodiments of the present application, a time unit containing 12 OFDM symbols or 14 OFDM symbols is called a subframe in the LTE system, corresponding to 2 slots; and corresponds to 1 slot in the NR system. The slots in the following embodiments of the present application are described by taking the slots of the NR system as an example.

[0072] Fifth, CSI-RS

[0073] CSI-RS will be configured in the NR system. Currently, CSI-RS is divided into zero power (ZP) CSI-RS and NZP CSI-RS. Among them, NZP CSI-RS will be sent at the resource position of NZP CSI-RS for CSI measurement, layer 1 (layer1, L1)-reference signal received power (reference signal received power, RSRP) measurement, time-frequency tracking, mobility measurement, wireless link detection, etc. CSI-RS is not sent at the resource position of ZP CSI-RS, which is mainly used for PDSCH rate matching. PDSCH avoids the position of ZP CSI-RS for mapping to avoid interference from other terminal devices or other cells, and also avoids interference with the signals of other terminal devices or other cells.

[0074] Currently, there are three types of CSI-RS resources, including: periodic, semi-persistent and aperiodic. Among them, periodic resources are configured by radio resource control (RRC) signaling and are sent periodically after configuration. Semi-persistent resources are configured by RRC signaling, activated and deactivated by medium access control-control element (MAC-CE) signaling, and sent periodically in the activated state. Aperiodic resources are configured by RRC signaling and triggered by the DCI of the physical layer.

[0075] The resource mapping of CSI-RS is described below.

[0076] For periodic or semi-persistent CSI-RS, high-level parameters will configure the period and offset in slots. After periodic CSI-RS is configured or semi-persistent CSI-RS is activated, the terminal device determines the slot where the CSI-RS is located based on the period and offset. For non-periodic CSI-RS, the terminal device can determine the slot where the CSI-RS is located based on the triggered DCI. Furthermore, in a slot where a CSI-RS resource exists:

[0077] In the time domain, according to the high-level configuration, there may be one or two groups of CSI-RS resources in the time domain, each group contains one OFDM symbol or two consecutive OFDM symbols. The two groups of CSI-RS resources can be adjacent or separated by several OFDM symbols.

[0078] In the frequency domain, high-level signaling will configure the frequency domain range of CSI-RS to be multiple continuous physical resource blocks (PRBs). CSI-RS resources will be included in each PRB or in each PRB with a PRB interval. On a PRB, on the OFDM symbol where the CSI-RS resource is located, the RE where the CSI-RS resource is located is determined based on the number of antenna ports (ports) configured by the high-level configuration, the code division multiplexing (CDM) type, etc. At present, there are 4 types of CDM types for CSI-RS configured by the high-level configuration, namely: noCDM, fd-CDM2, cdm4-FD2-TD2 and cdm8-FD2-TD4. Among them, noCDM means that CSI-RS has no CDM. fd-CDM2 means that CSI-RS is code-divided on two consecutive subcarriers in the frequency domain, and the code length is 2. cdm4-FD2-TD2 means that CSI-RS is coded on two consecutive subcarriers in the frequency domain and two consecutive time domain symbols in the time domain, with a code length of 2 in the frequency domain and a code length of 2 in the time domain. cdm8-FD2-TD4 means that CSI-RS is coded on two consecutive subcarriers in the frequency domain and four consecutive time domain symbols in the time domain, with a code length of 2 in the frequency domain and a code length of 4 in the time domain.

[0079] In CSI-RS resource mapping, N antenna ports will perform CDM transmission on N REs. Each antenna port corresponds to 1 CDM N orthogonal code, and its corresponding CSI-RS signal is multiplied by the orthogonal code to obtain N signals, which are transmitted on N REs. In other words, the signal transmitted on each RE is the superposition of the CSI-RS signals of N antenna ports after orthogonal code processing. At the receiving end, the signals on these N REs must be received completely in order to process the N CSI-RS corresponding to the N antenna ports.

[0080] Several examples are shown below. In the figure, the horizontal axis is the time axis, which includes 14 OFDM symbols in one slot, and the vertical axis is the frequency domain axis, which includes 12 subcarriers in one PRB.

[0081] Example 1, such as Figure 5 As shown, the time domain includes 1 group of CSI-RS resources, the group of CSI-RS resources includes 1 OFDM symbol, the number of antenna ports is 1, and the CDM type is noCDM.

[0082] Example 2, such as Figure 6 As shown, the number of antenna ports is 4 and the CDM type is fd-CDM2.

[0083] Example 3, such as Figure 7 As shown, the number of antenna ports is 8 and the CDM type is fd-CDM2.

[0084] Example 4, such as Figure 8 As shown, the number of antenna ports is 8 and the CDM type is cdm4-FD2-TD2.

[0085] Example 5, such as Fig. 9 As shown, the number of antenna ports is 24 and the CDM type is cdm8-FD2-TD4.

[0086] Sixth, CSI-IM

[0087] In the NR system, CSI-IM resources are configured for terminal devices. For a terminal device, there is no useful signal sent to itself on the CSI-IM resources, and the terminal device can measure interference on these resources.

[0088] Currently, there are three types of CSI-IM resources, including periodic, semi-persistent, and aperiodic. Among them, periodic resources are configured by RRC signaling and are sent periodically after configuration. Semi-persistent resources are configured by RRC signaling, activated and deactivated by MAC-CE signaling, and sent periodically in the activated state. Aperiodic resources are configured by RRC signaling and triggered by the DCI of the physical layer.

[0089] The resource mapping of CSI-IM is described below.

[0090] For periodic or semi-continuous CSI-IM, high-level parameters configure the period and offset in slots. After periodic CSI-IM is configured or semi-continuous CSI-IM is activated, the terminal device determines the slot where the CSI-IM is located based on the period and offset. For non-periodic CSI-IM, the terminal device can determine the slot where the CSI-IM is located based on the triggered DCI. Furthermore, in a slot where a CSI-IM resource exists:

[0091] In the frequency domain, high-level signaling configures the frequency domain range of CSI-IM to be multiple consecutive PRBs, each of which contains CSI-IM resources.

[0092] In the time domain, a CSI-IM resource contains 4 REs in one slot, which can be 4 REs corresponding to a certain OFDM symbol and 4 consecutive subcarriers, or 4 REs corresponding to 2 consecutive subcarriers and 2 consecutive OFDM symbols. The UE can determine the location of these 4 REs in the PRB containing the CSI-IM based on the high-level signaling configuration.

[0093] 7. CSI measurement and CSI reporting

[0094] First, a description of the relationship between the CSI report type and the measurement resource type is given as follows.

[0095] According to the measurement configuration of the base station, the terminal device will perform channel measurement and / or interference measurement based on the NZP CSI-RS, use CSI-IM to perform interference measurement, and generate different types of CSI for reporting according to high-level instructions.

[0096] Currently, CSI reports can be of the following types: periodic reporting, semi-continuous reporting, and aperiodic reporting. CSI reports can be carried on the physical uplink control channel (PUCCH) or the physical uplink shared channel (PUSCH). The following is a description of broadband and subband measurements.

[0097] There are two modes, wideband and sub-band, when the terminal equipment makes certain measurements and reports.

[0098] When performing subband measurements, the nominal subband size is related to the BWP bandwidth. Each BWP bandwidth can correspond to two subband sizes (as shown in Table 1), and the high-level configuration will indicate one of them.

[0099] Table 1

[0100] BWP(PRBs) Subband size (PRBs) <24 N / A 24–72 4，8 73–144 8，16 145–275 16，32

[0101] The following is a description of the CSI reference resources.

[0102] The CSI reference resource of a serving cell is defined as:

[0103] In the frequency domain, the CSI reference resource is defined as a set of downlink PRBs corresponding to the bandwidth related to generating CSI.

[0104] In the time domain, the CSI reference resource for a CSI report in uplink slot n' is defined as a downlink slot n-N. Here, μ DL and μ UL They are the index of the downlink subcarrier spacing (SCS) and the index of the uplink SCS, respectively. N is determined by high-level parameters such as the CSI report type, and N is a non-negative integer.

[0105] For example, assuming that N is 4 slots, the location diagram of the CSI reference resource of a serving cell can be as follows: Fig.10 shown.

[0106] If a terminal device is not configured with the high-level parameter "time restriction for channel measurements", the terminal device performs channel measurement based on the NZP CSI-RS in the CSI resource configuration that is no later than the CSI reference resource to obtain the CSI reported on the uplink slot n'; if a terminal device has configured the high-level parameter "time restriction for channel measurements", the terminal device performs channel measurement based on the nearest NZP CSI-RS in the CSI resource configuration that is no later than the CSI reference resource to obtain the CSI reported on the uplink slot n'.

[0107] If a terminal device is not configured with the high-level parameter "time restriction for channel measurements", the terminal device performs interference measurement based on the CSI-IM and / or NZP CSI-RS in the CSI resource configuration that is no later than the CSI reference resource to obtain the CSI reported on the uplink slot n'; if a terminal device has been configured with the high-level parameter "time restriction for channel measurements", the terminal device performs channel measurement based on the nearest CSI-IM and / or NZP CSI-RS in the CSI resource configuration that is no later than the CSI reference resource to obtain the CSI reported on the uplink slot n'.

[0108] 8. PDSCH and NZP CSI-RS

[0109] In the NR system, if the cyclic redundancy check (CRC) of a PDCCH used to schedule PDSCH is scrambled with the cell radio network temporary identifier (C-RNTI), modulation and coding scheme (MCS)-C-RNTI and configured scheduling radio network temporary identifier (CS-RNTI), or the PDSCH is a semi-persistent scheduling (SPS) PDSCH, then in one possible implementation, when the PDSCH resources and NZP CSI-RS overlap:

[0110] If it is a non-periodic NZP CSI-RS, PDSCH does not perform rate matching on overlapping resources;

[0111] If it is an NZP CSI-RS configured with the higher-level parameter CSI-RS-Resource-Mobility, PDSCH does not perform rate matching on overlapping resources;

[0112] In other scenarios, PDSCH will perform rate matching on NZP CSI-RS.

[0113] In another possible implementation, when PDSCH resources and ZP CSI-RS overlap:

[0114] If it is a non-periodic ZP CSI-RS triggered by a scheduled PDCCH other than the PDSCH, the PDSCH does not perform rate matching on the overlapping resources; otherwise, in other scenarios, the PDSCH will perform rate matching on the ZP CSI-RS.

[0115] It should be noted that the NZP CSI-RS and ZP CSI-RS discussed above are configured periodic NZP CSI-RS and ZP CSI-RS, or activated SP NZP CSI-RS and SP ZP CSI-RS, or triggered aperiodic NZP CSI-RS and aperiodic ZP CSI-RS, and do not include inactivated SP NZP CSI-RS and SP ZP CSI-RS, or untriggered aperiodic NZP CSI-RS and aperiodic ZP CSI-RS. They are explained here uniformly and will not be repeated below.

[0116] It is understandable that in the embodiments of the present application, PDCCH, PDSCH, PUCCH and PUSCH are merely examples of downlink control channels, downlink data channels, uplink control channels and uplink data channels. Downlink control channels, downlink data channels, uplink control channels and uplink data channels may have different names in different communication systems, and the embodiments of the present application do not limit this.

[0117] The technical solutions in the embodiments of the present application will be described below in conjunction with the drawings in the embodiments of the present application.

[0118] The embodiments of the present application may be applicable to LTE systems or NR systems, and may also be applicable to other future-oriented new systems, etc., which are not specifically limited in the embodiments of the present application. In addition, the term "system" may be interchangeable with "network".

[0119] like Fig.11As shown, a communication system 110 provided in an embodiment of the present application is provided. The communication system 110 includes a network device 120 and one or more terminal devices 130 connected to the network device 120. The terminal device 130 is connected to the network device 120 in a wireless manner. Optionally, different terminal devices 130 can communicate with each other. The terminal device 130 can be fixed or movable.

[0120] It should be noted that Fig.11 It is only a schematic diagram. Although not shown, the communication system 110 may also include other network devices, such as the communication system 110 may also include one or more of a core network device, a wireless relay device, and a wireless backhaul device, which are not specifically limited here. Among them, the network device can be connected to the core network device wirelessly or wired. The core network device and the network device 120 can be independent and different physical devices, or the functions of the core network device and the logical functions of the network device 120 can be integrated on the same physical device, or the functions of part of the core network device and part of the network device 120 can be integrated on one physical device. The embodiment of the present application does not make specific limitations on this.

[0121] by Fig.11 Taking the interaction between the network device 120 shown in the figure and any terminal device 130 as an example, in the embodiment of the present application, the network device 120 can send the first information to the terminal device 130, the terminal device 130 receives the first information from the network device 120, and determines the first resource according to the first information. The network device 120 can also send the second information to the terminal device 130, the terminal device 130 receives the second information from the network device 120, and determines the second resource according to the second information. Further, the terminal device 130 determines the above-mentioned third resource according to the first resource and the second resource, and performs measurement on the third resource. Among them, the specific implementation of the scheme will be described in detail in the subsequent method embodiment, and will not be repeated here. Based on this scheme, since in the embodiment of the present application, the terminal device performs measurement on some or all resources in the first resource except the first overlapping resource. That is to say, on the overlapping resources of the first resource and the second resource, or on the overlapping resources of the first resource and the second resource and the related resources of the overlapping resources, the terminal device does not perform measurement, so the problem of reduced measurement performance caused by interference from other signals on the measurement resource can be avoided.

[0122] Optionally, the network device 120 in the embodiment of the present application is a device that connects the terminal device 130 to the wireless network, which can be a base station, an evolved NodeB (eNodeB), a transmission reception point (TRP), a next generation NodeB (gNB) in a 5G mobile communication system, a base station in a future mobile communication system, or an access node in a wireless fidelity (Wi-Fi) system, etc.; it can also be a module or unit that completes part of the functions of a base station, for example, it can be a centralized unit (CU) or a distributed unit (DU). The embodiments of the present application do not limit the specific technology and specific device form adopted by the network device. In this application, unless otherwise specified, network devices refer to wireless access network devices.

[0123] Optionally, the terminal device 130 in the embodiment of the present application may be a device for realizing a wireless communication function, such as a terminal or a chip that can be used in a terminal. The terminal may also be referred to as user equipment (UE), a mobile station, a mobile terminal, etc. The terminal may be a mobile phone, a tablet computer, a computer with a wireless transceiver function, a virtual reality terminal device, an augmented reality terminal device, a wireless terminal in industrial control, a wireless terminal in unmanned driving, a wireless terminal in remote surgery, a wireless terminal in a smart grid, a wireless terminal in transportation safety, a wireless terminal in a smart city, a wireless terminal in a smart home, etc. The embodiment of the present application does not limit the specific technology and specific device form adopted by the terminal device.

[0124] Optionally, the network device 120 and the terminal device 130 in the embodiment of the present application can be deployed on land, including indoors or outdoors, handheld or vehicle-mounted; can also be deployed on the water surface; can also be deployed on airplanes, balloons and artificial satellites in the air. The embodiment of the present application does not limit the application scenarios of the network device 120 and the terminal device 130.

[0125] Optionally, the network device 120 and the terminal device 130 in the embodiment of the present application can communicate through the authorized spectrum, can communicate through the unlicensed spectrum, or can communicate through the authorized spectrum and the unlicensed spectrum at the same time. The network device 120 and the terminal device 130 can communicate through the spectrum below 6 gigahertz (GHz), can communicate through the spectrum above 6 GHz, and can also use the spectrum below 6 GHz and the spectrum above 6 GHz at the same time. The embodiment of the present application does not limit the spectrum resources used between the network device 120 and the terminal device 130.

[0126] Optionally, the network device 120 and the terminal device 130 in the embodiment of the present application may also be referred to as a communication device, which may be a general device or a dedicated device, and the embodiment of the present application does not specifically limit this.

[0127] Optional, such as Fig.12 , which is a schematic diagram of the structure of the network device 120 and the terminal device 130 provided in an embodiment of the present application.

[0128] The terminal device 130 includes at least one processor 1301 and at least one transceiver 1303. Optionally, the terminal device 130 may also include at least one memory 1302, at least one output device 1304 or at least one input device 1305.

[0129] The processor 1301, the memory 1302 and the transceiver 1303 are connected via a communication line. The communication line may include a path to transmit information between the above components.

[0130] Processor 1301 may be a general-purpose central processing unit (CPU), or other general-purpose processors, digital signal processors (DSP), application specific integrated circuits (ASIC), field programmable gate arrays (FPGA) or other programmable logic devices, transistor logic devices, hardware components or any combination thereof. A general-purpose processor may be a microprocessor or any conventional processor. In a specific implementation, as an embodiment, processor 1301 may also include multiple CPUs, and processor 1301 may be a single-core processor or a multi-core processor. The processor here may refer to one or more devices, circuits or processing cores for processing data.

[0131] The memory 1302 may be a device with a storage function. For example, it may be a read-only memory (ROM) or other types of static storage devices that can store static information and instructions, a random access memory (RAM) or other types of dynamic storage devices that can store information and instructions, or a programmable read-only memory (PROM), an erasable programmable read-only memory (EPROM), an electrically erasable programmable read-only memory (EEPROM), a compact disc read-only memory (CD-ROM) or other optical disc storage, optical disc storage (including compressed optical disc, laser disc, optical disc, digital versatile disc, Blu-ray disc, etc.), a magnetic disk storage medium or other magnetic storage device, or any other medium that can be used to carry or store the desired program code in the form of instructions or data structures and can be accessed by a computer, but is not limited thereto. The memory 1302 may exist independently and be connected to the processor 1301 through a communication line. The memory 1302 may also be integrated with the processor 1301.

[0132] The memory 1302 is used to store computer-executable instructions for executing the solution of the present application, and the execution is controlled by the processor 1301. Specifically, the processor 1301 is used to execute the computer-executable instructions stored in the memory 1302, thereby implementing the measurement method described in the embodiment of the present application.

[0133] Alternatively, optionally, in an embodiment of the present application, the processor 1301 may also perform processing-related functions in the measurement method provided in the following embodiments of the present application, and the transceiver 1303 is responsible for communicating with other devices or communication networks, which is not specifically limited in the embodiments of the present application.

[0134] Optionally, the computer-executable instructions in the embodiments of the present application may also be referred to as application code or computer program code, which is not specifically limited in the embodiments of the present application.

[0135] The transceiver 1303 may be any transceiver-like device for communicating with other devices or communication networks, such as Ethernet, radio access network (RAN), or wireless local area networks (WLAN). The transceiver 1303 includes a transmitter (Tx) and a receiver (Rx).

[0136] The output device 1304 communicates with the processor 1301 and can display information in a variety of ways. For example, the output device 1304 can be a liquid crystal display (LCD), a light emitting diode (LED) display device, a cathode ray tube (CRT) display device, or a projector.

[0137] The input device 1305 communicates with the processor 1301 and can accept user input in a variety of ways. For example, the input device 1305 can be a mouse, a keyboard, a touch screen device, or a sensor device.

[0138] The network device 120 includes at least one processor 1201, at least one transceiver 1203, and at least one network interface 1204. Optionally, the network device 120 may also include at least one memory 1202. The processor 1201, the memory 1202, the transceiver 1203, and the network interface 1204 are connected via a communication line. The network interface 1204 is used to connect to a core network device via a link (e.g., an S1 interface), or to connect to a network interface of other network devices via a wired or wireless link (e.g., an X2 interface). Fig.12 In addition, the description of the processor 1201, the memory 1202 and the transceiver 1203 can refer to the description of the processor 1301, the memory 1302 and the transceiver 1303 in the terminal device 130, which will not be repeated here.

[0139] Combination Fig.12 The schematic diagram of the structure of the terminal device 130 shown is exemplary. Fig.13 A specific structural form of the terminal device 130 provided in an embodiment of the present application.

[0140] Wherein, in some embodiments, Fig.12 The functions of the processor 1301 can be Fig.13 The processor 110 in is implemented.

[0141] In some embodiments, Fig.12 The function of the transceiver 1303 can be achieved by Fig.13The antenna 1, antenna 2, mobile communication module 150, wireless communication module 160, etc. in the terminal device 130 are implemented. The mobile communication module 150 can provide solutions for wireless communication technologies including LTE, NR or future mobile communications applied on the terminal device 130. The wireless communication module 160 can provide solutions for wireless communication technologies including WLAN (such as Wi-Fi network), bluetooth (blue tooth, BT), global navigation satellite system (global navigation satellite system, GNSS), frequency modulation (frequency modulation, FM), near field communication (near field communication, NFC), infrared, etc. applied on the terminal device 130. In some embodiments, the antenna 1 of the terminal device 130 is coupled to the mobile communication module 150, and the antenna 2 is coupled to the wireless communication module 160, so that the terminal device 130 can communicate with the network and other devices through wireless communication technology.

[0142] In some embodiments, Fig.12 The function of the memory 1302 can be achieved by Fig.13 It can be implemented by the internal memory 121 in the memory or the external memory connected to the external memory interface 120.

[0143] In some embodiments, Fig.12 The output device 1304 in the function can be Fig.13 The display screen 194 is implemented in.

[0144] In some embodiments, Fig.12 The function of the input device 1305 in can be realized by a mouse, keyboard, touch screen device or Fig.13 This is achieved by the sensor module 180 in.

[0145] In some embodiments, Fig.13 As shown, the terminal device 130 may also include one or more of an audio module 170 , a camera 193 , a button 190 , a SIM card interface 195 , a USB interface 130 , a charging management module 140 , a power management module 141 and a battery 142 .

[0146] Understandably, Fig.13 The structure shown does not constitute a specific limitation on the terminal device 130. For example, in other embodiments of the present application, the terminal device 130 may include more or fewer components than shown in the figure, or combine some components, or split some components, or arrange the components differently. The components shown in the figure may be implemented in hardware, software, or a combination of software and hardware.

[0147] The following will be combined Figures 1 to 13 ,by Fig.11 Taking the interaction between the network device 120 shown and any terminal device 130 as an example, the measurement method provided in the embodiment of the present application is described in detail.

[0148] It should be noted that the message names between network elements or the names of parameters in the messages in the following embodiments of the present application are merely examples, and other names may be used in specific implementations, and the embodiments of the present application do not impose any specific limitations on this.

[0149] like Fig.14 As shown, a measurement method provided in an embodiment of the present application is provided, and the measurement method includes steps S1401 to S1407.

[0150] S1401: A network device sends first information to a terminal device. Correspondingly, the terminal device receives the first information from the network device.

[0151] Optionally, the first information in the embodiment of the present application may be carried in a high-level signaling sent by a network device to a terminal device. In a possible implementation, the first information may be configuration information of CSI measurement, including measurement report configuration, measurement resource configuration, association configuration of measurement report and measurement resource, etc. For relevant descriptions, reference may be made to the existing third generation partnership project (3rd generation partnership project, 3GPP) technical standard (technical standard, TS) 38.331 V15.7.0 and TS38.214 V15.7.0, which will not be described in detail here.

[0152] S1402. The terminal device determines a first resource according to the first information.

[0153] Among them, the first resource in the embodiment of the present application is a resource configured for measurement.

[0154] S1403: The network device sends the second information to the terminal device. Correspondingly, the terminal device receives the second information from the network device.

[0155] In a possible implementation, the second information in the embodiment of the present application is configuration information of rate matching resources. In this implementation, the configuration information of rate matching resources may be carried in a high-layer signaling sent by a network device to a terminal device.

[0156] In another possible implementation, the second information in the embodiment of the present application is PI. In this implementation, the PI may be carried in the DCI sent by the network device to the terminal device.

[0157] S1404. The terminal device determines a second resource according to the second information.

[0158] Among them, when the second information is the configuration information of the rate matching resource, the second resource in the embodiment of the present application is the rate matching resource; when the second information is PI, the second resource in the embodiment of the present application is the preempted resource indicated by PI.

[0159] It should be noted that in the embodiment of the present application, when the second resource is a preempted resource indicated by the PI, the network device can also send the configuration information of the PI to the terminal device. Accordingly, the terminal device receives the configuration information of the PI from the network device, and the configuration information of the PI is used to determine the resource location where the PI is located.

[0160] Optionally, there is no necessary execution order between step S1403 and step S1401 in the embodiment of the present application. Step S1401 may be executed first, and then step S1403; step S1403 may be executed first, and then step S1401; or step S1401 and step S1403 may be executed at the same time. The embodiment of the present application does not make any specific limitation on this.

[0161] S1405. The terminal device determines a third resource based on the first resource and the second resource. The third resource includes part or all of the first resource except the first overlapping resource. The first overlapping resource is an overlapping resource of the first resource and the second resource.

[0162] Optionally, in an embodiment of the present application, the third resource includes part or all of the resources in the first resource except the first overlapping resource, which may specifically mean: the third resource is a resource in the first resource that does not overlap with the fourth resource, the fourth resource includes resources in the first frequency domain range on the first time domain symbol in the first resource, the first time domain symbol is a time domain symbol in the time domain resource corresponding to the first overlapping resource, the first frequency domain range includes the frequency domain range where the second overlapping resource is located, and the second overlapping resource is an overlapping resource on the first time domain symbol in the first overlapping resource.

[0163] Exemplarily, assuming that the overlapping resource on the first time domain symbol in the first overlapping resource (ie, the second overlapping resource) is as follows Fig.15 As shown, the first frequency domain range includes the frequency domain range where the 4 REs in the second overlapping resources are located.

[0164] In a possible implementation, when the measurement performed by the terminal device is a broadband measurement, the first frequency domain range is a frequency domain range corresponding to the first resource.

[0165] For example, the wideband measurement in the embodiment of the present application may include wideband CSI measurement or wideband non-CSI measurement. The wideband non-CSI measurement may include, for example, L1-RSRP measurement and the like.

[0166] Assume that the first resource is a CSI-RS measurement resource, the number of CSI-RS antenna ports configured by the high-level layer is 4, and the CDM type is fd-CDM2. The corresponding antenna port position distribution is as follows: Figure 6 As shown, when the measurement performed by the terminal device is a broadband measurement, the frequency domain range of the CSI-RS measurement resource configured by the high-level signaling is a continuous plurality of PRBs, and the overlapping resource on the first time domain symbol in the first overlapping resource (ie, the second overlapping resource) is as follows Fig.16 As shown, the first frequency domain range is the frequency domain range corresponding to these multiple continuous PRBs on the first time domain symbol, that is, the first frequency domain range is the frequency domain range of the first resource configured by the high-level signaling.

[0167] In another possible implementation, when the measurement performed by the terminal device is a sub-band measurement, the first frequency domain range is a frequency domain range corresponding to the sub-band where the second overlapping resources are located.

[0168] For example, the subband measurement in the embodiment of the present application may include CSI measurement of the subband.

[0169] Assume that the first resource is a CSI-RS measurement resource, the number of CSI-RS antenna ports configured by the high-level layer is 4, and the CDM type is fd-CDM2. The corresponding antenna port position distribution is as follows: Figure 6 As shown, when the measurement performed by the terminal device is a sub-band measurement, the second overlapping resource is as follows Fig.16 As shown (that is, 4 REs in one PRB belong to subband 2, and 4 REs in another PRB belong to subband 3), the first frequency domain range is the frequency domain range corresponding to subband 2 and the frequency domain range corresponding to subband 3. That is, the first frequency domain range is the PRB included in the subband where the second overlapping resource is located. It should be noted that the above three examples are all described by taking the overlapping resources on a first time domain symbol as an example. If the first resource and the second resource overlap on multiple first time domain symbols, the fourth resource includes the resources within the first frequency domain range on multiple first time domain symbols in the first resource. The method for determining the first frequency domain range on each first time domain symbol can refer to the method for determining the first frequency domain range on the first time domain symbol in the above example, which will not be repeated here.

[0170] Furthermore, the fourth resource may also include resources within the first frequency domain range on the second time domain symbol in the first resource, where the second time domain symbol is a time domain symbol having a time domain CDM relationship with the second overlapping resource.

[0171] Assume that the first resource is a CSI-RS measurement resource, the number of CSI-RS antenna ports configured by the high-level layer is 8, and the CDM type is cdm4-FD2-TD2. The corresponding antenna port positions are distributed as follows: Figure 8 As shown, the second overlapping resource is Fig.17As shown, the fourth resource includes not only the 4 REs in the second overlapping resources, but also the related resources of the second overlapping resources, such as the 4 REs on the second time domain symbol. Because these 4 REs on the second time domain symbol have a time domain CDM relationship with these 4 REs on the first time domain symbol, the CSI-RS carried on these 8 REs are mapped to 8 antenna ports through CDM. When the CSI-RS carried on these 4 REs on the first time domain symbol are punctured, the CSI-RS carried on these 4 REs on the second time domain symbol cannot be correctly demodulated.

[0172] It should be noted that the above example is described by taking the first frequency domain range as the frequency domain range where the second overlapping resource is located. Of course, the first frequency domain range may also be the frequency domain range corresponding to the first resource, or the first frequency domain range may also be the frequency domain range corresponding to the subband where the second overlapping resource is located, which will not be described in detail here.

[0173] S1406: The network device determines a first resource and a second resource.

[0174] For the description of the first resource, please refer to the above step S1402 , and for the description of the second resource, please refer to the above step S1404 , which will not be described in detail here.

[0175] Specifically, the network device may determine the first resource according to measurement requirements.

[0176] Specifically, when the second resource is a rate matching resource, the network device can determine the second resource based on the requirements of forward or backward compatibility; when the second resource is a preemptive resource, the network device can determine the second resource based on the scheduling of URLLC service data.

[0177] It should be noted that there is no necessary execution order between step S1406 and step S1401 or step S1403 in the embodiment of the present application. Step S1406 may be executed first, and then step S1401 or step S1403; or step S1401 or step S1403 may be executed first, and then step S1406; or step S1406 and step S1401 or step S1403 may be executed at the same time. The embodiment of the present application does not make any specific limitations on this.

[0178] S1407. The network device determines the third resource according to the first resource and the second resource.

[0179] Among them, the way in which the network device determines the third resource based on the first resource and the second resource can refer to the way in which the terminal device determines the above-mentioned third resource based on the first resource and the second resource in step S1405, which will not be repeated here.

[0180] It should be noted that if the above-mentioned step S1401 or step S1403 is executed after step S1406, there is no necessary execution order between step S1407 and step S1401 or step S1403 in the embodiment of the present application. Step S1407 may be executed first, and then step S1401 or step S1403; or step S1401 or step S1403 may be executed first, and then step S1407; or step S1407 and step S1401 or step S1403 may be executed at the same time. The embodiment of the present application does not make any specific limitations on this.

[0181] Furthermore, in a possible implementation manner 1, the measurement method provided in the embodiment of the present application further includes the following step S1408:

[0182] S1408: The network device sends a measurement signal to the terminal device on the third resource. Correspondingly, the terminal device receives the measurement signal from the network device on the third resource.

[0183] When the first resource is a CSI-RS resource, the measurement signal here may be a CSI-RS. When the first resource is a CSI-IM resource, the measurement signal here may be a CSI-IM.

[0184] Alternatively, in another possible implementation manner 2, the measurement method provided in the embodiment of the present application further includes the following step S1409:

[0185] S1409: The network device determines not to send a signal on the third resource.

[0186] When the first resource is a CSI-IM resource, the signal that is not sent on the third resource may be, for example, a useful signal such as a PDSCH of the cell.

[0187] Furthermore, the measurement method provided in the embodiment of the present application further includes the following step S1410:

[0188] S1410. The terminal device performs measurement on a third resource.

[0189] When the first resource is a CSI-RS resource, the terminal device may perform channel measurement and / or interference measurement based on the NZP CSI-RS received on the third resource; or, when the first resource is a CSI-IM, the terminal device may perform interference measurement on the third resource.

[0190] Based on the measurement method provided in the embodiment of the present application, since in the embodiment of the present application, the terminal device performs measurement on some or all resources in the first resource except the first overlapping resource. That is to say, the terminal device does not perform measurement on the overlapping resources of the first resource and the second resource, or on the overlapping resources of the first resource and the second resource and the related resources of the overlapping resources, thus avoiding the problem of measurement performance degradation caused by interference from other signals on the measurement resources.

[0191] The actions of the network devices in the above steps S1401 to S1410 can be performed by Fig.12 The processor 1201 in the network device 120 shown in the figure calls the application code stored in the memory 1202 to execute, and the actions of the terminal device in the above steps S1401 to S1410 can be performed by Fig.12 The processor 1301 in the terminal device 130 shown calls the application code stored in the memory 1302 for execution.

[0192] Further, combined with the above description of PI, it can be known that when the second resource is the preempted resource indicated by PI, the preempted resource indicated by PI can be obtained through the DCI based on the carrier PI; combined with the above description of CSI measurement and reporting, it can be known that one CSI report corresponds to one CSI reference resource, and the measurement resource used by this CSI report is no later than this CSI reference resource. Fig.18 As shown, the downlink slot corresponding to the time of sending the CSI report is slot n, and the downlink slot corresponding to the CSI reference resource is slot n-4. In other words, the sent CSI report is measured based on the measurement resources before the deadline 1. Assume Fig.18 The processing time of the second PI in the example is offset 1. At the position of deadline 2, the terminal device knows the preemption information within its corresponding time domain range, and can only make a judgment on the overlapping information at this time. The terminal device could have performed CSI measurement based on the measurement resources in the offset 2 area, but because it has to wait for the PI to be parsed, it has to wait until the deadline 2 to start the CSI measurement. This may cause the CSI report obtained based on the measurement resources in the offset 2 area to not be sent in time in time slot n. To solve this problem, in an embodiment of the present application, the time domain resource of the first resource can be designed to be no later than the time domain position of the CSI reference resource corresponding to the CSI report. When the second resource is the preemption resource indicated by the PI, the time domain position of the CSI reference resource is the downlink time slot nNK. μ DL and μ ULThey are the index of the downlink subcarrier and the index of the uplink subcarrier, respectively. N is determined according to the parameters in the first information, such as the number of CSI resources corresponding to the measurement in the measurement report configuration in the first information. For relevant descriptions, please refer to the existing 3GPP TS38.331 V15.7.0 and TS38.214 V15.7.0, which will not be described here. Wherein, N and K are both non-negative integers, and n' is the timeslot index (also referred to as the timeslot number) for sending the CSI report.

[0193] For the value of K:

[0194] In a possible implementation, the value of K is determined by the network device, and then the network device sends the third information to the terminal device. Accordingly, the terminal device receives the third information from the network device, wherein the third information indicates the value of K. Optionally, in an embodiment of the present application, the network device may determine the value of K based on the processing time of the PDCCH by the terminal device and / or the time domain period of the PI. Of course, the network device may also determine the value of K in other ways, and the embodiment of the present application does not specifically limit this.

[0195] In another possible implementation, the value of K is determined by the terminal device. For example, the terminal device determines the value of K based on the processing time of PDCCH and / or the time domain period of PI. The embodiment of the present application does not make any specific limitation on this.

[0196] For example, Fig.18 As shown in the figure, assuming N = 4, K = 2, it means that the CSI report sent is measured based on the measurement resources before the deadline 3. Assuming that the resolution time of each PI is the same, it can be resolved at the deadline 4 Fig.18 The first PI in the time slot n can be used to determine the overlapping information and then perform CSI measurement. Since the deadline 4 is earlier than the deadline 1, the signal on the measurement resource before the deadline 3 is measured at the deadline 4, and the obtained CSI report can be sent in time slot n.

[0197] It can be understood that in each of the above embodiments, the methods and / or steps implemented by the terminal device can also be implemented by a chip or chip system that implements the functions of the above terminal device, and the methods and / or steps implemented by the network device can also be implemented by a chip or chip system that implements the functions of the above network device.

[0198] The above mainly introduces the scheme provided by the embodiment of the present application from the perspective of interaction between various network elements. Accordingly, the embodiment of the present application also provides a communication device, which is used to implement the above various methods. The communication device can be a terminal device in the above method embodiment or a chip system that implements the function of the above terminal device; or, the communication device can be a network device in the above method embodiment or a chip system that implements the function of the above network device. It can be understood that in order to implement the above functions, the communication device includes a hardware structure and / or software module corresponding to each function. Those skilled in the art should easily realize that, in combination with the units and algorithm steps of each example described in the embodiments disclosed herein, the present application can be implemented in the form of hardware or a combination of hardware and computer software. Whether a function is executed in the form of hardware or computer software driving hardware depends on the specific application and design constraints of the technical solution. Professional and technical personnel can use different methods to implement the described functions for each specific application, but such implementation should not be considered to exceed the scope of the present application.

[0199] Fig.19 and Fig. 20 The following is a schematic diagram of the structure of possible communication devices provided in the embodiments of the present application. These communication devices can be used to implement the functions of the terminal device or network device in the above method embodiments, and thus can also achieve the beneficial effects of the above method embodiments. In the embodiments of the present application, the communication device can be as follows: Fig.11 The terminal device 130 shown in FIG. 1 may also be Fig.11 The network device 120 shown may also be a module (such as a chip) applied to a terminal device or a network device.

[0200] like Fig.19 As shown, the communication device 1900 includes a processing unit 1910 and a transceiver unit 1920. The communication device 1900 is used to implement the above Fig.14 The functions of the terminal device or the network device in the method embodiment shown in FIG.

[0201] When the communication device 1900 is used to implement Fig.14 The functions of the terminal device in the method embodiment shown are: the transceiver unit 1920 is used to receive the first information and the second information from the network device. The processing unit 1910 is used to determine the first resource according to the first information, and after determining the second resource according to the second information, determine the third resource according to the first resource and the second resource, the third resource includes part or all of the resources in the first resource except the first overlapping resource, and the first overlapping resource is the overlapping resource of the first resource and the second resource. The processing unit 1910 is also used to perform measurement on the third resource.

[0202] Optionally, the time domain resource of the first resource is no later than the time domain position of the CSI reference resource corresponding to the CSI report, and when the second resource is the preempted resource indicated by the PI, the time domain position of the CSI reference resource is the downlink time slot nNK, μ DL and μ UL They are the index of the downlink SCS and the index of the uplink SCS respectively, N is determined according to the parameters in the first information, N and K are both non-negative integers, and n' is the timeslot index for sending the CSI report.

[0203] In a possible implementation, the transceiver unit 1920 is further configured to receive third information from the network device, where the third information indicates a value of K.

[0204] In another possible implementation, the processing unit 1910 is further configured to determine the value of K according to the processing time of the PDCCH and / or the time domain period of the PI.

[0205] When the communication device 1900 is used to implement Fig.14 The functions of the network device in the method embodiment shown are: the transceiver unit 1920 is used to send the first information and the second information, the first information indicates the first resource, and the second information indicates the second resource. The processing unit 1910 is used to determine the third resource based on the first resource and the second resource, the third resource includes part or all of the resources in the first resource except the first overlapping resource, wherein the first overlapping resource is the overlapping resource of the first resource and the second resource. The transceiver unit 1920 is also used to send a measurement signal on the third resource, or the processing unit 1910 is also used to determine not to send a signal on the third resource.

[0206] Optionally, the time domain resource of the first resource is no later than the time domain position of the CSI reference resource corresponding to the CSI report, and when the second resource is the preempted resource indicated by the PI, the time domain position of the CSI reference resource is the downlink time slot nNK, μ DL and μ UL They are the index of the downlink SCS and the index of the uplink SCS respectively, N is determined according to the parameters in the first information, N and K are both non-negative integers, and n' is the timeslot index for sending the CSI report.

[0207] In a possible implementation, the transceiver unit 1920 is further configured to send third information, where the third information indicates a value of K.

[0208] For a more detailed description of the processing unit 1910 and the transceiver unit 1920, please refer to Fig.14 The relevant description in the method embodiment shown is directly obtained and will not be repeated here.

[0209] In this embodiment, the communication device 1900 is presented in the form of dividing various functional modules in an integrated manner. The "module" here may refer to a specific ASIC, circuit, processor and memory that executes one or more software or firmware programs, integrated logic circuit, and / or other devices that can provide the above functions. In a simple embodiment, when the communication device 1900 is used to implement Fig.14 When the functions of the terminal device in the method embodiment shown in the figure are described, those skilled in the art can imagine that the communication device 1900 can be used Fig.12 In the form of the terminal device 130 shown; or, when the communication device 1900 is used to implement Fig.14 When the functions of the network device in the method embodiment shown are described, those skilled in the art can imagine that the communication device 1900 can be used Fig.12 The network device 120 shown is in the form of.

[0210] for example, Fig.12 The processor 1201 in the network device 120 shown can call the computer-executable instructions stored in the memory 1202 to enable the network device 120 to execute the measurement method in the above method embodiment.

[0211] Specifically, Fig.19 The functions / implementation processes of the processing unit 1910 and the transceiver unit 1920 in Fig.12 The processor 1201 in the network device 120 shown calls the computer execution instructions stored in the memory 1202 to implement. Or, Fig.19 The function / implementation process of the processing unit 1910 can be achieved by Fig.12 The processor 1201 in the network device 120 shown calls the computer execution instructions stored in the memory 1202 to implement, Fig.19 The function / implementation process of the transceiver unit 1920 can be achieved by Fig.12 The embodiment is implemented by the transceiver 1203 in the network device 120 shown.

[0212] Or, for example, Fig.12 The processor 1301 in the terminal device 130 shown can call the computer-executable instructions stored in the memory 1302 to enable the terminal device 130 to execute the measurement method in the above method embodiment.

[0213] Specifically, Fig.19 The functions / implementation processes of the processing unit 1910 and the transceiver unit 1920 in Fig.13 The processor 1301 in the terminal device 130 shown calls the computer execution instructions stored in the memory 1302 to implement. Or, Fig.19The function / implementation process of the processing unit 1910 can be achieved by Fig.13 The processor 1301 in the terminal device 130 shown calls the computer execution instructions stored in the memory 1302 to implement, Fig.19 The function / implementation process of the transceiver unit 1920 can be achieved by Fig.13 The embodiment is implemented by the transceiver 1303 in the terminal device 130 shown.

[0214] like Fig. 20 As shown, the communication device 2000 includes a processor 2010 and an interface circuit 2020. The processor 2010 and the interface circuit 2020 are coupled to each other. It is understood that the interface circuit 2020 can be a transceiver or an input / output interface. For a description of the type of the processor 2010, please refer to Fig.12 The embodiments shown will not be described in detail here.

[0215] Optionally, the communication device 2000 may further include a memory 2030 for storing instructions executed by the processor 2010 or storing input data required by the processor 2010 to execute instructions or storing data generated after the processor 2010 executes instructions. Fig.12 The embodiments shown will not be described in detail here.

[0216] When the communication device 2000 is used to implement Fig.14 When the method is shown, the processor 2010 is used to execute the function of the above-mentioned processing unit 1910, and the interface circuit 2020 is used to execute the function of the above-mentioned transceiver unit 1920.

[0217] When the above communication device is a chip applied to a terminal device, the terminal device chip implements the functions of the terminal device in the above method embodiment. The terminal device chip receives information from other modules in the terminal device (such as a radio frequency module or an antenna), and the information is sent by the network device to the terminal device; or the terminal device chip sends information to other modules in the terminal device (such as a radio frequency module or an antenna), and the information is sent by the terminal device to the network device.

[0218] When the above communication device is a chip applied to a network device, the network device chip implements the function of the network device in the above method embodiment. The network device chip receives information from other modules in the network device (such as a radio frequency module or an antenna), and the information is sent by the terminal device to the network device; or the network device chip sends information to other modules in the network device (such as a radio frequency module or an antenna), and the information is sent by the network device to the terminal device.

[0219] The method steps in the embodiments of the present application can be implemented by hardware, or by a processor executing software instructions. The software instructions can be composed of corresponding software modules, and the software modules can be stored in RAM, flash memory, ROM, PROM, EPROM, EEPROM, registers, hard disks, mobile hard disks, CD-ROMs, or any other form of storage medium well known in the art. An exemplary storage medium is coupled to the processor so that the processor can read information from the storage medium and can write information to the storage medium. Of course, the storage medium can also be a component of the processor. The processor and the storage medium can be located in an ASIC. In addition, the ASIC can be located in a network device or a terminal device. Of course, the processor and the storage medium can also be present in a network device or a terminal device as discrete components.

[0220] In the above embodiments, it can be implemented in whole or in part by software, hardware, firmware or any combination thereof. When implemented by software, it can be implemented in whole or in part in the form of a computer program product. The computer program product includes one or more computer programs or instructions. When the computer program or instruction is loaded and executed on a computer, the process or function described in the embodiment of the present application is executed in whole or in part. The computer may be a general-purpose computer, a special-purpose computer, a computer network, a network device, a user device or other programmable device. The computer program or instruction may be stored in a computer-readable storage medium, or transmitted from one computer-readable storage medium to another computer-readable storage medium, for example, the computer program or instruction may be transmitted from one website site, computer, server or data center to another website site, computer, server or data center by wired or wireless means. The computer-readable storage medium may be any available medium that a computer can access or a data storage device such as a server or data center that integrates one or more available media. The available medium may be a magnetic medium, for example, a floppy disk, a hard disk, a tape; it may also be an optical medium, for example, a digital video disc (DVD); it may also be a semiconductor medium, for example, a solid state drive (SSD).

[0221] In the various embodiments of the present application, unless otherwise specified or provided for in any logical conflict, the terms and / or descriptions between the different embodiments are consistent and may be referenced to each other, and the technical features in the different embodiments may be combined to form new embodiments according to their inherent logical relationships.

[0222] In this application, "at least one" means one or more, and "more than one" means two or more. "And / or" describes the association relationship of associated objects, indicating that three relationships may exist. For example, A and / or B can mean: A exists alone, A and B exist at the same time, and B exists alone, where A and B can be singular or plural. In the text description of this application, the character " / " generally indicates that the previous and next associated objects are in an "or" relationship; in the formula of this application, the character " / " indicates that the previous and next associated objects are in a "division" relationship.

[0223] It is to be understood that the various digital numbers involved in the embodiments of the present application are only for the convenience of description and are not used to limit the scope of the embodiments of the present application. The size of the sequence number of the above-mentioned processes does not mean the order of execution, and the execution order of each process should be determined by its function and inherent logic. In addition, in the embodiments of the present application, the words "first", "second" and the like are used to distinguish the same items or similar items with substantially the same functions and effects. It will be understood by those skilled in the art that the words "first", "second" and the like do not limit quantity and execution order, and the words "first", "second" and the like do not limit necessarily different.

[0224] Finally, it should be noted that in the embodiments of the present application, words such as "exemplary" or "for example" are used to indicate examples, illustrations or descriptions. Any embodiment or design described as "exemplary" or "for example" in the embodiments of the present application should not be interpreted as being more preferred or more advantageous than other embodiments or designs. Specifically, the use of words such as "exemplary" or "for example" is intended to present related concepts in a concrete way for easy understanding.

Claims

1. A measurement method, executed by a terminal device or by a module applied to a terminal device, characterized in that: The method comprises: receiving first information and second information from a network device; determining a first resource according to the first information; determining a second resource according to the second information; Determine a third resource according to the first resource and the second resource, the third resource including part or all of the first resource except the first overlapping resource, the first overlapping resource being the overlapping resource of the first resource and the second resource; Measurements are performed on the third resource.

2. The method according to claim 1, characterized in that The second information is configuration information of a rate matching resource, and the second resource is the rate matching resource; or, The second information is a preemption indication PI, and the second resource is a preemption resource indicated by the PI.

3. The method according to claim 2, characterized in that The third resource includes part or all of the first resource except the first overlapping resource, including: The third resource is a resource in the first resource that does not overlap with the fourth resource, the fourth resource includes resources in a first frequency domain range on a first time domain symbol in the first resource, the first time domain symbol is a time domain symbol in the time domain resources corresponding to the first overlapping resource, the first frequency domain range includes a frequency domain range where a second overlapping resource is located, and the second overlapping resource is an overlapping resource on the first time domain symbol in the first overlapping resource.

4. The method according to claim 3, characterized in that The fourth resource also includes resources within the first frequency domain range on a second time domain symbol in the first resource, where the second time domain symbol is a time domain symbol having a time domain code division multiple access (CDM) relationship with the second overlapping resource.

5. The method according to claim 3 or 4, characterized in that: When the measurement is a broadband measurement, the first frequency domain range is a frequency domain range corresponding to the first resource; Alternatively, when the measurement to be performed is a sub-band measurement, the first frequency domain range is a frequency domain range corresponding to the sub-band where the second overlapping resources are located.

6. The method according to any one of claims 2 to 5, characterized in that: The time domain resource of the first resource is no later than the time domain position of the CSI reference resource corresponding to the channel state information CSI report, and when the second resource is the preempted resource indicated by the PI, the time domain position of the CSI reference resource is the downlink time slot nNK, μ DL and μ UL They are the index of the downlink subcarrier spacing SCS and the index of the uplink SCS respectively, N is determined according to the parameters in the first information, N and K are both non-negative integers, and n' is the timeslot index for sending the CSI report.

7. The method according to claim 6, characterized in that The method further comprises: receiving third information from the network device, wherein the third information indicates a value of K; or, The value of K is determined according to the processing time of the physical downlink control channel and / or the time domain period of the PI.

8. A measurement method, executed by a network device or by a module applied to a network device, characterized in that: The method comprises: Sending first information and second information, wherein the first information indicates a first resource, and the second information indicates a second resource; Determine a third resource according to the first resource and the second resource, the third resource including part or all of the first resource except the first overlapping resource, wherein the first overlapping resource is an overlapping resource of the first resource and the second resource; Send a measurement signal on the third resource, or determine not to send a signal on the third resource.

9. The method according to claim 8, characterized in that The second information is configuration information of a rate matching resource, and the second resource is the rate matching resource; Alternatively, the second information is a preemption indication PI, and the second resource is a preemption resource indicated by the PI.

10. The method according to claim 9, characterized in that The third resource includes part or all of the first resource except the first overlapping resource, including: The third resource is a resource in the first resource that does not overlap with the fourth resource, the fourth resource includes resources in a first frequency domain range on a first time domain symbol in the first resource, the first time domain symbol is a time domain symbol in the time domain resources corresponding to the first overlapping resource, the first frequency domain range includes a frequency domain range where a second overlapping resource is located, and the second overlapping resource is an overlapping resource on the first time domain symbol in the first overlapping resource.

11. The method according to claim 10, characterized in that The fourth resource also includes resources within the first frequency domain range on a second time domain symbol in the first resource, where the second time domain symbol is a time domain symbol having a time domain code division multiple access (CDM) relationship with the second overlapping resource.

12. The method according to claim 10 or 11, characterized in that: When the measurement is a broadband measurement, the first frequency domain range is the bandwidth corresponding to the first resource; Alternatively, when the measurement is a sub-band measurement, the first frequency domain range is a frequency domain range corresponding to a sub-band where the second overlapping resources are located.

13. The method according to any one of claims 9 to 12, characterized in that: The time domain resource of the first resource is no later than the time domain position of the CSI reference resource corresponding to the channel state information CSI report, and when the second resource is the preempted resource indicated by the PI, the time domain position of the CSI reference resource is the downlink time slot nNK, μ DL and μ UL They are the index of the downlink subcarrier spacing SCS and the index of the uplink SCS respectively, N is determined according to the parameters in the first information, N and K are both non-negative integers, and n' is the timeslot index for sending the CSI report.

14. The method according to claim 13, characterized in that The method further comprises: Send third information, where the third information indicates a value of K.

15. A communication device, characterized in that: The method comprises a module for executing the method as claimed in any one of claims 1 to 7 or a module for executing the method as claimed in any one of claims 8 to 14.

16. A communication device, characterized in that: It includes a processor and an interface circuit, wherein the interface circuit is used to receive signals from other communication devices outside the communication device and transmit them to the processor or send signals from the processor to other communication devices outside the communication device, and the processor is used to implement the method as described in any one of claims 1 to 7 through a logic circuit or by executing code instructions; or, the processor is used to implement the method as described in any one of claims 8 to 14 through a logic circuit or by executing code instructions.

17. A computer-readable storage medium, characterized in that: The storage medium stores a computer program or an instruction. When the computer program or the instruction is executed by the communication device, the method according to any one of claims 1 to 7 or the method according to any one of claims 8 to 14 is implemented.

18. A computer program product comprising instructions, characterized in that When the instruction is executed by the communication device, the communication device implements the method according to any one of claims 1 to 7 or the method according to any one of claims 8 to 14.

Images