Downlink reference signal receiving frequency hopping method and device, terminal and storage medium

Abstract

The invention discloses a downlink reference signal receiving frequency hopping method and device, a terminal and a storage medium, and belongs to the technical field of wireless communication, and the downlink reference signal receiving frequency hopping method comprises the steps that the terminal receives a downlink reference signal sent by network side equipment through a mode of receiving Rx frequency hopping; the terminal performs joint processing on downlink reference signals received by a plurality of Rx hops in the Rx frequency hopping to obtain a channel state information (CSI) measurement result; and the terminal reports a CSI report to the network side equipment, wherein the CSI report comprises the CSI measurement result.

Description

Technical Field

[0001] The present application belongs to the field of wireless communication technology, and specifically relates to a downlink reference signal reception frequency hopping method, device, terminal and storage medium. Background Art

[0002] In the 6th Generation Mobile Communication Technology (6G) system, a terminal, such as a User Equipment (UE), will perform Channel State Information (CSI) measurements over a large bandwidth.

[0003] However, considering factors such as terminal capabilities and processing complexity, how the terminal processes a large-bandwidth downlink reference signal is a technical problem that needs to be solved urgently. Summary of the invention

[0004] The embodiments of the present application provide a method, device, terminal and storage medium for receiving a downlink reference signal, which can solve the problem of how a terminal processes a downlink reference signal with a large bandwidth.

[0005] In a first aspect, a downlink reference signal reception frequency hopping method is provided, which is performed by a terminal, and the method includes:

[0006] The terminal receives the downlink reference signal sent by the network side device by receiving Rx frequency hopping;

[0007] The terminal jointly processes downlink reference signals received by multiple Rx hops in the Rx frequency hopping to obtain a channel state information CSI measurement result;

[0008] The terminal reports a CSI report to the network side device, where the CSI report includes the CSI measurement result.

[0009] In a second aspect, a downlink reference signal receiving frequency hopping device is provided, the device comprising:

[0010] A receiving module, used for receiving a downlink reference signal sent by a network side device by receiving Rx frequency hopping;

[0011] A processing module, configured to jointly process downlink reference signals received by multiple Rx hops in the Rx frequency hopping to obtain a channel state information CSI measurement result;

[0012] A reporting module is used to report a CSI report to the network side device, where the CSI report includes the CSI measurement result.

[0013] In a third aspect, a terminal is provided, which includes a processor and a memory. The memory stores programs or instructions that can run on the processor. When the programs or instructions are executed by the processor, the steps of the method described in the first aspect are implemented.

[0014] In a fourth aspect, a terminal is provided, including a processor and a communication interface, where:

[0015] The communication interface is configured to receive a downlink reference signal sent by a network-side device by means of receiving Rx frequency hopping;

[0016] The processor is configured to jointly process the downlink reference signals received in multiple Rx hops in the Rx frequency hopping to obtain a channel state information CSI measurement result;

[0017] The communication interface is further configured to report a CSI report to the network-side device, and the CSI report includes the CSI measurement result.

[0018] In a fifth aspect, a readable storage medium is provided. Programs or instructions are stored on the readable storage medium. When the programs or instructions are executed by a processor, the steps of the method described in the first aspect are implemented.

[0019] In a sixth aspect, a chip is provided. The chip includes a processor and a communication interface. The communication interface is coupled to the processor. The processor is configured to run programs or instructions to implement the method described in the first aspect.

[0020] In a seventh aspect, a computer program / program product is provided. The computer program / program product is stored in a storage medium. The program / program product is executed by at least one processor to implement the steps of the method described in the first aspect.

[0021] In the embodiments of the present application, the terminal receives the downlink reference signal sent by the network-side device by means of Rx frequency hopping, and jointly processes the downlink reference signals received in multiple Rx hops to obtain a CSI measurement result and report it, so that the terminal can process downlink reference signals with a large bandwidth and the channel state information reporting overhead is small. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 A block diagram of a wireless communication system to which the embodiments of the present application can be applied is shown;

[0023] Figure 2 It is a schematic flowchart of a method for receiving Rx frequency hopping of a downlink reference signal provided by an embodiment of the present application;

[0024] Figure 3 It is a schematic diagram of Rx frequency hopping provided by an embodiment of the present application;

[0025] Figure 4 It is a schematic structural diagram of a downlink reference signal receiving frequency hopping device provided by an embodiment of the present application;

[0026] Figure 5 It is a schematic structural diagram of a terminal provided by an embodiment of the present application;

[0027] Figure 6 It is a schematic hardware structure diagram of a terminal provided by an embodiment of the present application. Specific embodiments

[0028] Next, the technical solutions in the embodiments of the present application will be clearly described in conjunction with the accompanying drawings in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, rather than all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art belong to the scope of protection of the present application.

[0029] The terms "first", "second", etc. in the present application are used to distinguish similar objects, rather than to describe a specific order or sequence. It should be understood that such terms can be interchanged under appropriate circumstances, so that the embodiments of the present application can be implemented in an order other than those illustrated or described here, and the objects distinguished by "first" and "second" are usually of the same type, and do not limit the number of objects. For example, the first object can be one or multiple. In addition, "or" in the present application means at least one of the connected objects. For example, "A or B" covers three scenarios, that is, Scenario 1: including A and not including B; Scenario 2: including B and not including A; Scenario 3: including both A and B. The character " / " generally indicates an "or" relationship between the associated objects before and after.

[0030] The term "indication" in the present application can be either a direct indication (or an explicit indication) or an indirect indication (or an implicit indication). Among them, a direct indication can be understood as that the sender clearly tells the receiver specific information, operations to be performed, or request results, etc. in the sent indication; an indirect indication can be understood as that the receiver determines the corresponding information according to the indication sent by the sender, or makes a judgment and determines the operations to be performed or request results, etc. according to the judgment result.

[0031] It should be noted that the technology described in the embodiments of this application is not limited to Long Term Evolution (LTE) / LTE-Advanced (LTE-A) systems, but can also be used in other wireless communication systems, such as Code Division Multiple Access (CDMA), Time Division Multiple Access (TDMA), Frequency Division Multiple Access (FDMA), Orthogonal Frequency Division Multiple Access (OFDMA), Single-carrier Frequency-Division Multiple Access (SC-FDMA), or other systems. The terms "system" and "network" in the embodiments of this application are often used interchangeably, and the described technology can be used in the above-mentioned systems and radio technologies, as well as in other systems and radio technologies. The following description describes the New Radio (NR) system for example purposes, and the NR terminology is used in most of the following descriptions, but these technologies can also be applied to systems other than the NR system, such as the 6th Generation (6 th Generation, 6G) communication system.

[0032] Figure 1A block diagram of a wireless communication system to which embodiments of the present application can be applied is shown. The wireless communication system includes a terminal 11 and a network-side device 12. Among them, the terminal 11 can be a mobile phone, a tablet personal computer, a laptop computer, a notebook computer, a personal digital assistant (PDA), a handheld computer, a netbook, an ultra-mobile personal computer (UMPC), a mobile internet device (MID), an augmented reality (AR), a virtual reality (VR) device, a robot, a wearable device, a flight vehicle, a vehicle user equipment (VUE), a shipborne device, a pedestrian user equipment (PUE), a smart home (home devices with wireless communication functions, such as refrigerators, TVs, washing machines, or furniture, etc.), a game console, a personal computer (PC), a teller machine, or a self-service machine, etc., terminal-side devices. Wearable devices include: smart watches, smart bracelets, smart earphones, smart glasses, smart jewelry (smart bracelets, smart bracelets, smart rings, smart necklaces, smart anklets, smart ankle chains, etc.), smart wristbands, smart clothing, etc. Among them, the vehicle user equipment can also be referred to as a vehicle terminal, a vehicle controller, a vehicle module, a vehicle component, a vehicle chip, or a vehicle unit, etc. It should be noted that the specific type of the terminal 11 is not limited in the embodiments of the present application. The network-side device 12 can include an access network device or a core network device. Among them, the access network device can also be referred to as a radio access network (RAN) device, a radio access network function, or a radio access network unit. The access network device can include a base station, a wireless local area network (WLAN) access point (AP), or a wireless fidelity (WiFi) node, etc.Among them, the base station can be referred to as Node B (NB), Evolved Node B (eNB), the next generation Node B (gNB), New Radio Node B (NR Node B), access point, Relay Base Station (RBS), Serving Base Station (SBS), Base Transceiver Station (BTS), radio base station, radio transceiver, Basic Service Set (BSS), Extended Service Set (ESS), home Node B (HNB), home evolved Node B, Transmission Reception Point (TRP), or some other suitable term in the art. As long as the same technical effect is achieved, the base station is not limited to specific technical terms. It should be noted that in the embodiments of this application, only the base station in the NR system is used as an example for introduction, and the specific type of the base station is not limited.

[0033] Next, with reference to the accompanying drawings, the downlink reference signal reception hopping method, device, terminal, and storage medium provided by the embodiments of this application will be described in detail through some embodiments and their application scenarios.

[0034] Figure 2 is a flowchart of the downlink reference signal reception hopping method provided by the embodiments of this application. This method is applied to a terminal, such as Figure 2 shown, this method includes steps 201 to 203, where:

[0035] Step 201: The terminal receives the downlink reference signal sent by the network-side device by means of receiving Rx hopping.

[0036] Optionally, the network-side device sends the downlink reference signal to the terminal. The terminal receives the downlink reference signal by means of Rx (receiving) hopping.

[0037] It should be noted that the downlink reference signal is used for the measurement of channel state information. For example, the downlink reference signal is a Channel State Information Reference Signal (CSI-RS).

[0038] Step 202: The terminal jointly processes the downlink reference signals received in multiple Rx hops of the Rx frequency hopping to obtain a channel state information (CSI) measurement result.

[0039] Optionally, the network side device sends CSI-RS with a large bandwidth to the terminal. The terminal receives the CSI-RS by means of Rx frequency hopping; and jointly processes the CSI-RS received in multiple Rx hops of the Rx frequency hopping to obtain a CSI measurement result. Figure 3 It is a schematic diagram of Rx frequency hopping provided by an embodiment of the present application. As Figure 3 shown, the network side device transmits wideband CSI-RS (such as CSI-RS with a large bandwidth); the terminal performs Rx frequency hopping on the wideband CSI-RS and receives the wideband CSI-RS through multiple Rx hops (such as multiple narrowband CSI-RS Rx hops).

[0040] Optionally, the implementation manner of the joint processing may include: multiple hops form an equivalent large bandwidth, and the terminal obtains a CSI measurement result based on the CSI-RS of the equivalent large bandwidth. For example, the terminal can obtain wideband CSI according to the equivalent large bandwidth; or, the terminal can obtain narrowband CSI after frequency domain compression (such as enhanced type 2 (eType2) codebook feedback) according to the equivalent large bandwidth.

[0041] Step 203: The terminal reports a CSI report to the network side device, and the CSI report includes the CSI measurement result.

[0042] In the embodiment of the present application, the terminal receives the downlink reference signal sent by the network side device by means of Rx frequency hopping, and jointly processes the downlink reference signals received in multiple Rx hops to obtain a CSI measurement result and report it, so that the terminal can process the downlink reference signal with a large bandwidth and the channel state information reporting overhead is small.

[0043] Optionally, the implementation manner in which the terminal receives the downlink reference signal sent by the network side device by means of Rx frequency hopping in step 201 may include at least one of the following:

[0044] Implementation manner 1: The terminal receives a downlink reference signal resource by means of Rx frequency hopping. For example, the terminal receives a CSI-RS resource by means of Rx frequency hopping.

[0045] Optionally, the implementation manner in which the terminal receives a downlink reference signal resource by means of Rx frequency hopping includes: the terminal receives the downlink reference signal resource through multiple Rx hops in the Rx frequency hopping based on first configuration information for the downlink reference signal resource; wherein, the first configuration information includes at least one of the following:

[0046] 1) At least one starting slot offset, used to indicate that the downlink reference signal resource is transmitted on at least one time slot.

[0047] For example, for 1 CSI-RS resource, the network configures at least one starting slot offset, indicating that this CSI-RS resource can be transmitted on at least one time slot (slot).

[0048] 2) At least one first symbol information for one time slot, used to indicate that the downlink reference signal resource is transmitted on at least one first symbol of one time slot.

[0049] For example, for 1 CSI-RS resource, the network configures at least one first symbol information within one slot, indicating that this CSI-RS resource has at least one first symbol position within one slot; wherein, the first symbol represents the time domain starting position where the CDM group is mapped. Optionally, for CSI-RS, one first symbol can be determined according to the parameter 'firstOFDMSymbolInTimeDomain' configured by the network.

[0050] Optionally, the downlink reference signal ports of the downlink reference signal resource are mapped onto X first symbols at a time, where X is a positive integer; the downlink reference signal resource is repeatedly transmitted in units of X first symbols; for multiple repeated transmissions, the ports with the same number of ports and the same port index are the same port.

[0051] For example, for 1 CSI-RS resource, all CSI-RS ports are mapped onto X first symbols at a time, and this 1 CSI-RS resource is repeatedly transmitted in units of X first symbols. The X first symbols cannot cross time slots.

[0052] Optionally, X can be determined according to a mapping relationship (or mapping table) composed of at least one of the number of ports, frequency domain density, CDM type, CDM group index, and the position of CSI-RS in the slot; or X can be configured by the network.

[0053] For other first symbols, perform repeated CSI-RS port mapping. On the repeated first symbols, the ports corresponding to the same port index are the same port.

[0054] It should be noted that all CSI-RS ports t are mapped onto X first symbols at a time, which can also be referred to as 'one-time repetition'.

[0055] Optionally, the first configuration information may be applicable to multiple downlink reference signal resources within one downlink reference signal resource set. For example, the first configuration information may be applicable to multiple CSI-RS resources within one CSI-RS resource set.

[0056] Implementation method 2: The terminal receives different downlink reference signal resources within the same downlink reference signal resource set by means of Rx hopping. For example, the terminal receives different CSI-RS resources within the same CSI-RS resource set by means of Rx hopping.

[0057] The terminal receiving different downlink reference signal resources within the same downlink reference signal resource set by means of Rx hopping includes two cases: Case 1 and Case 2.

[0058] Case 1: One downlink reference signal resource within the downlink reference signal resource set contains all downlink reference signal ports.

[0059] For example, one CSI-RS resource contains all CSI-RS ports. For instance, if the total number of CSI-RS ports is 32, the number of CSI-RS ports contained in each CSI-RS resource is also 32.

[0060] Optionally, the implementation method for the terminal to receive different downlink reference signal resources within the same downlink reference signal resource set by means of Rx hopping may include:

[0061] The terminal receives the downlink reference signal resources through multiple Rx hops in the Rx hopping based on the second configuration information for the downlink reference signal resource set; the second configuration information is used to indicate that there are M groups of downlink reference signal resources within the downlink reference signal resource set, where M is a positive integer; for example, there are M groups of CSI-RS resources within one CSI-RS resource set. Optionally, M >= 1. If M = 1, it means that the downlink reference signal resources within the downlink reference signal resource set are one group of downlink reference signal resources.

[0062] Among them, for different downlink reference signal resources in any one group of the M groups of downlink reference signal resources, the following at least one condition is satisfied:

[0063] 1) The number of ports is the same, and the ports with the same port index are the same port;

[0064] 2) Different downlink reference signal resources respectively correspond to different Rx hops;

[0065] 3) The Quasi Co-Location (QCL) parameters are the same, or the Transmission Configuration Indicator (TCI) states are the same; for example, a set of CSI-RS resources all use a certain CSI-RS resource within the group as the QCL source reference signal (QCL source RS).

[0066] 4) The power control offsets are the same; in other words, the transmission powers are the same.

[0067] 5) The frequency-domain allocation parameters within a resource block (RB) are the same.

[0068] 6) The frequency-domain densities are the same.

[0069] 7) The Code Division Multiplexing (CDM) types are the same.

[0070] 8) The scrambling identity IDs are the same.

[0071] Optionally, for one downlink reference signal resource set, configure'repetition on', indicating that different downlink reference signal resources within different downlink reference signal resource sets are transmitted from the same beam; or, different downlink reference signal resources within a downlink reference signal resource group in the downlink reference signal resource set are transmitted from the same beam.

[0072] Furthermore, the terminal uses the same receive beam (Rx beam) to receive the CSI-RS resources with'repetition on' above. Optionally, the behavior of the terminal is determined according to network indication. For example, if the network indicates 'Rx hopping', the terminal uses the same Rx beam to receive different CSI-RS resources; otherwise, there is no such assumption.

[0073] Case 2: One downlink reference signal resource within the downlink reference signal resource set contains some of the downlink reference signal ports, and multiple downlink reference signal resources form all of the downlink reference signal ports.

[0074] For example, one CSI-RS resource contains some of the CSI-RS ports, and multiple CSI-RS resources form all of the CSI-RS ports. For instance, the total number of CSI-RS ports is 128, the number of CSI-RS ports contained in each CSI-RS resource is also 32, and 4 CSI-RS resources form all of the CSI-RS ports.

[0075] Optionally, the implementation method for the terminal to receive different downlink reference signal resources within the same downlink reference signal resource set through Rx frequency hopping may include:

[0076] The terminal receives the downlink reference signal resources through multiple Rx hops in the Rx frequency hopping based on the third configuration information for the downlink reference signal resource set; where the third configuration information is used to indicate that there are N groups of downlink reference signal resource lists in the downlink reference signal resource set, and N is a positive integer; a group of downlink reference signal resource lists includes multiple downlink reference signal resources that constitute all the downlink reference signal ports. For example, multiple CSI-RS resources included in a group of CSI-RS resource lists constitute all (complete) CSI-RS port numbers.

[0077] Optionally, N >= 1. If N = 1, it means that there is one group of downlink reference signal resource lists in the downlink reference signal resource set.

[0078] Among them, different downlink reference signal resource lists in a group of downlink reference signal resource lists satisfy at least one of the following conditions:

[0079] 1) Different downlink reference signal resource lists respectively correspond to different Rx hops;

[0080] 2) The number of ports of different downlink reference signal resource lists is the same, and ports with the same port index among different downlink reference signal resources are the same port;

[0081] 3) The number of downlink reference signal resources in different downlink reference signal resource lists is the same.

[0082] Implementation method 3: The terminal receives the downlink reference signal resources in different downlink reference signal resource sets through Rx frequency hopping. For example, the terminal receives the CSI-RS resources in different CSI-RS resource sets through Rx frequency hopping.

[0083] Optionally, the implementation method for the terminal to receive the downlink reference signal resources in different downlink reference signal resource sets through Rx frequency hopping may include:

[0084] The terminal receives the downlink reference signal resources through multiple Rx hops in the Rx frequency hopping based on the fourth configuration information for the different downlink reference signal resource sets;

[0085] Among them, the fourth configuration information is used to indicate that the different downlink reference signal resource sets have a first association relationship; for example, multiple CSI-RS resource sets have a first association relationship. Multiple CSI-RS resource sets with a first association relationship can be referred to as linked CSI-RS resource sets. The first association relationship may include at least one of the following characteristics:

[0086] 1) Different downlink reference signal resource sets respectively correspond to different Rx hops;

[0087] 2) The number of downlink reference signal resources in different downlink reference signal resource sets is the same;

[0088] 3) At least one first downlink reference signal resource in different downlink reference signal resource sets has a second association relationship. For example, the CSI-RS resources corresponding to multiple CSI-RS resource sets have an association relationship. Optionally, the CSI-RS resources with an association relationship can also be referred to as linked CSI-RS resources.

[0089] Optionally, the at least one first downlink reference signal resource can be determined by at least one of the following methods:

[0090] 1) Sort the multiple downlink reference signal resources in each downlink reference signal resource set in time order, and determine the at least one first downlink reference signal resource according to the multiple downlink reference signal resources in the same time domain order.

[0091] For example, the multiple resources in the CSI-RS resource set are sorted in time order; the multiple resources in the same time domain order have a second association relationship.

[0092] 2) Determine the at least one first downlink reference signal resource according to the downlink reference signal resources at the same entry in the different downlink reference signal resource sets.

[0093] For example, the resources corresponding to the same entry in the CSI-RS resource set have a second association relationship.

[0094] 3) Determine the multiple downlink reference signal resources with the same resource identifier in the downlink reference signal resource set as the at least one first downlink reference signal resource.

[0095] 4) Explicitly configure the at least one first downlink reference signal resource with a second association relationship as a set.

[0096] Optionally, the second association relationship may include at least one of the following characteristics:

[0097] 1) The downlink reference signal resources within different downlink reference signal resource sets have the same number of ports, and ports with the same port index are the same port;

[0098] 2) The downlink reference signal resources within different downlink reference signal resource sets respectively correspond to different Rx hops and can be used for joint processing of downlink reference signal resources to obtain CSI;

[0099] 3) The QCL of the downlink reference signal resources within different downlink reference signal resource sets is the same;

[0100] 4) The power control offsets of the downlink reference signal resources within different downlink reference signal resource sets are the same;

[0101] 5) The in-RB frequency domain allocation parameters of the downlink reference signal resources within different downlink reference signal resource sets are the same;

[0102] 6) The frequency domain densities of the downlink reference signal resources within different downlink reference signal resource sets are the same;

[0103] 7) The scrambling IDs of the downlink reference signal resources within different downlink reference signal resource sets are the same;

[0104] 8) The CDM types of the downlink reference signal resources within different downlink reference signal resource sets are the same.

[0105] Optionally, in the downlink reference signal receiving frequency hopping method provided in the embodiments of this application, during the process that the terminal receives the downlink reference signal sent by the network side device in the Rx frequency hopping manner, the terminal or the receiving behavior of the terminal satisfies any one of the following:

[0106] 1) The terminal receives the downlink reference signal within the active bandwidth part (active BWP). For example, the terminal only receives the CSI-RS within the active BWP. Correspondingly, the terminal does not expect to receive the CSI-RS outside the active BWP, or the terminal does not expect the CSI-RS to be configured outside the active BWP.

[0107] 2) The terminal receives the downlink reference signal outside the active BWP. For example, the terminal is allowed to receive the CSI-RS outside the active BWP.

[0108] Further, the implementation manner for the terminal to receive the downlink reference signal outside the active BWP may include: when at least one of the following conditions is satisfied, the terminal receives the downlink reference signal outside the active BWP:

[0109] Condition 1, a network configuration enabling condition, is used to enable the terminal to receive downlink reference signals outside the active BWP range;

[0110] Condition 2, the network configures Rx frequency hopping;

[0111] Condition 3, the network configures a measurement gap (MG);

[0112] Condition 4, the network configures a virtual BWP.

[0113] Optionally, the implementation methods for the terminal to receive downlink reference signals outside the active BWP range include at least one of the following:

[0114] Method 1, the terminal ignores the limitation of the active BWP on the frequency domain range of the downlink reference signal;

[0115] For example, the terminal ignores the limitation of the active BWP on the frequency domain range of the CSI-RS.

[0116] Method 2, the terminal receives the downlink reference signal during the measurement gap MG; for example, the terminal receives the CSI-RS during the MG.

[0117] Method 3, the terminal receives the downlink reference signal within the virtual BWP. For example, the network configures a virtual BWP or a virtual wideband, and the terminal receives the CSI-RS within the virtual BWP or the virtual wideband.

[0118] Furthermore, the virtual BWP satisfies at least one of the following:

[0119] 1) The bandwidth of the virtual BWP is greater than the maximum bandwidth supported by the terminal;

[0120] 2) At the same moment (such as the same OFDM symbol), the bandwidth received or processed by the terminal within the virtual BWP does not exceed the maximum bandwidth supported by the terminal;

[0121] 3) The bandwidth of the virtual BWP does not exceed the maximum total Rx frequency hopping bandwidth supported by the terminal for joint processing;

[0122] 4) The bandwidth of the virtual BWP does not exceed the carrier bandwidth;

[0123] 5) The bandwidth range of the virtual BWP includes the total Rx frequency hopping bandwidth, or the bandwidth range of the virtual BWP is the same as the total Rx frequency hopping bandwidth range, or the bandwidth range of the virtual BWP does not exceed the total Rx frequency hopping bandwidth configured by the network.

[0124] 6) The terminal only processes downlink reference signals on the virtual BWP;

[0125] 7) The parameter set of the virtual BWP is the same as that of the downlink reference signal;

[0126] 8) The frequency-domain position reference point of the virtual BWP is the starting point of the carrier or reference point A (Point A).

[0127] Optionally, after receiving the downlink reference signal outside the active BWP range, the terminal switches to the active BWP.

[0128] Optionally, when the terminal receives the downlink reference signal outside the active BWP range, the terminal satisfies at least one of the following:

[0129] 1) The terminal ignores the BWP ID included in the message for activating or deactivating the semi-persistent downlink reference signal;

[0130] 2) The terminal does not expect the BWP ID to be included in the message for activating or deactivating the semi-persistent downlink reference signal;

[0131] 3) The BWP ID included in the message received by the terminal for activating or deactivating the semi-persistent downlink reference signal is used to indicate the virtual BWP;

[0132] 4) The message received by the terminal for activating or deactivating the semi-persistent downlink reference signal includes an indication of the virtual BWP.

[0133] Optionally, the terminal receives the CSI-RS within the frequency domain range of the virtual BWP.

[0134] For example, for CSI-RS, if then the terminal shall assume that the initial CRB index of the CSI-RS resource is otherwise N initialRB = startingRB.

[0135] If then the terminal shall assume that the bandwidth of the CSI-RS resource is otherwise

[0136] where startingRB is the starting PRB position of the hop configured by the network, nrofRBs is the hop bandwidth configured by the network, is the starting point of the virtual BWP, is the virtual BWP size, N initial RB is the initial CRB index of the CSI-RS, is the actual bandwidth of the CSI-RS.

[0137] Optionally, the downlink reference signal reception hopping method provided by the embodiments of the present application may further include: the terminal performs downlink reference signal measurement and / or reports a CSI report in the frequency domain by means of Rx hopping according to at least one set of subband configurations; wherein, the at least one set of subband configurations includes at least one of a start point of a subband, an end point of a subband, a bitmap of a subband, and a size of a subband. For example, the terminal performs measurement and reporting of CSI in the frequency domain according to at least one set of subband configurations in a wideband or subband manner.

[0138] Optionally, at least one of the start point of the subband, the end point of the subband, and the bitmap of the subband is determined according to a target frequency domain range;

[0139] wherein, the target frequency domain range includes at least one of an active BWP, a virtual BWP, a downlink reference signal Rx hopping full bandwidth frequency domain range, a downlink reference signal frequency domain range, a frequency domain range corresponding to Rx hop, and a carrier.

[0140] For example, the frequency domain range corresponding to Rx hop means that a frequency domain range is configured for each Rx hop. For example, the bandwidth is equal to the bandwidth of Rx hop.

[0141] Optionally, the network may configure at least one of a corresponding time domain range and a frequency domain range for each Rx hop. Optionally, the frequency domain range includes at least one of a starting PRB and a bandwidth; the time domain range includes at least one of a starting slot, a starting symbol, a duration, and a period. Optionally, the time domain range includes a switching time between Rx hops. Optionally, each Rx hop is associated with or configured with an Rx hop ID.

[0142] Optionally, the size of the subband is mapped according to a target bandwidth; or, the size of the subband is indicated by a network side device from at least one candidate value, and the at least one candidate value is mapped according to a target bandwidth;

[0143] wherein, the target bandwidth includes at least one of a bandwidth consistent with the target frequency domain range, an Rx hop bandwidth, and a bandwidth indicated by the network.

[0144] Optionally, the size of the first subband is not greater than the sizes of other subbands to align with the first PRB of the target frequency domain range;

[0145] For example, the first subband size is wherein is the subband size, is the starting PRB of the target frequency domain range.

[0146] For example, the size of the last sub-band is not greater than that of the other sub-bands to align with the last PRB of the target frequency domain range.

[0147] For example, if then the size of the last subband is where is the subband size, is the starting PRB of the target frequency domain range, is the size of the target frequency domain range.

[0148] If then the size of the last subband is

[0149] Optionally, the start point, end point, and bitmap of the subband are determined according to the frequency domain range of the larger bandwidth (such as one of the other target frequency domain ranges in the target frequency domain range except for the frequency domain range corresponding to the Rx hop), and the subband size is determined according to the hop bandwidth.

[0150] Optionally, in the case where there is no overlapping bandwidth between Rx hops, the terminal does not expect a subband to contain multiple Rx hops.

[0151] Optionally, the subband configuration can be configured in one or more groups for the terminal to receive CSI-RS in the manner of Rx hopping.

[0152] 1. For the case where the subband configuration is one group, multiple Rx hops are associated with one group of subband configurations, and the one group of subband configurations is used for the terminal to perform Rx hopping.

[0153] Optionally, before performing Rx hopping, the terminal receives network indication information sent by the network side device, and the network indication information is used to instruct the terminal to perform Rx hopping.

[0154] Furthermore, the network indication information includes at least one of the following:

[0155] 1) Rx hop enable flag, which is used to enable the terminal to perform Rx hopping;

[0156] 2) Number of Rx hops;

[0157] 3) Total bandwidth of Rx hops;

[0158] 4) Overlapping bandwidth;

[0159] 5) Longest Rx hop duration;

[0160] 6) Number of repetitions occupied by one Rx hop;

[0161] 7) Downlink reference signal resource level corresponding to Rx hop, where the downlink reference signal resource level includes at least one of within one downlink reference signal resource, different downlink reference signal resources within the same downlink reference signal resource set, and across different downlink reference signal resource sets.

[0162] For example, the network indication information is used to indicate the CSI-RS resource level (level) for performing Rx hopping. The CSI-RS resource level includes at least one of the following: 1) within the CSI-RS resource; 2) across different CSI-RS resources within the same CSI-RS resource set; 3) across different CSI-RS resource sets.

[0163] 2. For the case where the subbands are configured into multiple groups, each Rx hop is associated with a group of subband configurations; the multiple groups of subband configurations are used for the terminal to perform Rx hopping. The multiple groups of subband configurations are respectively associated with corresponding Rx hops, and different Rx hops perform Rx hopping according to their respective corresponding subband configurations. For example, the number of groups of subband configurations is equal to the number of Rx hops.

[0164] Optionally, the characteristics between the multiple groups of subband configurations include at least one of the following:

[0165] 1) The starting point of the subbands, the ending point of the subbands, the bitmap length of the subbands, and the size of the subbands in the multiple groups of subband configurations are the same, and the bitmaps of the subbands are different.

[0166] For example: The starting point of the subbands, the ending point of the subbands, the bitmap length of the subbands, and the size of the subbands are determined according to the 'virtual BWP', so the starting point of the subbands, the ending point of the subbands, the bitmap length of the subbands, and the size of the subbands in the multiple groups of subband configurations are the same.

[0167] For example, for the bitmap of each group of subbands, there is one or two consecutive regions where the bits are '0', and CSI-RS is not received; among them, the one or two segments where the bit is 0 are located at the starting and ending positions of the subbands respectively.

[0168] 2) The starting point of the subbands, the ending point of the subbands, the bitmap length of the subbands, the bitmap content of the subbands, and the size of the subbands in each group of subband configurations are configured according to the Rx hop associated with the subband configuration.

[0169] Optionally, the network configures the association relationship between the sub-band configuration and the downlink reference signal resource. For example, the network configures the association relationship between the sub-band configuration and the CSI-RS resource and / or the CSI-RS resource set.

[0170] Furthermore, there is at least one of the following association relationships between the sub-band configuration and the downlink reference signal resource:

[0171] 1) A set of sub-band configurations is associated with a repetition of the downlink reference signal resource once.

[0172] If the Rx hop receives a CSI-RS resource, a set of sub-band configurations is associated with a repetition of the CSI-RS resource once.

[0173] Furthermore, a repetition of the CSI-RS resource is associated with the first symbol of the CSI-RS resource, and / or, the starting slot offset (if the CSI-RS resource can be transmitted in multiple slots), and / or, the CSI-RS period instance (if Rx hopping is not restricted to one CSI-RS period).

[0174] 2) A set of sub-band configurations is associated with one or more downlink reference signal resource IDs.

[0175] If the Rx hop receives multiple CSI-RS resources of a CSI-RS resource set, a set of sub-band configurations is associated with one or more CSI-RS resource IDs. Optionally, a set of sub-band configurations is associated with multiple CSI-RS resource IDs, that is, the Rx hop receives multiple CSI-RS resources.

[0176] 3) A set of sub-band configurations is associated with one or more downlink reference signal resource set IDs.

[0177] If the Rx hop receives different CSI-RS resource sets, a set of sub-band configurations is associated with one or more CSI-RS resource set IDs. Optionally, a set of sub-band configurations is associated with multiple CSI-RS resource set IDs, that is, the Rx hop receives multiple CSI-RS resource sets.

[0178] Through the association relationship with the downlink reference signal resource, a set of sub-band configurations is associated with the corresponding Rx hop. Of course, a set of sub-band configurations can also be directly associated with the Rx hop, such as directly associating with the Rx hop ID. Or, a set of sub-band configurations is associated with multiple Rx hops, and different sub-band configurations are associated with different multiple Rx hops.

[0179] Optionally, among the multiple Rx hops associated with multiple sets of sub-band configurations, there is an overlapping bandwidth between adjacent Rx hops in the frequency domain.

[0180] Optionally, there is an overlap in the subbands where the overlapping bandwidth is located. The corresponding bitmaps in the subband bitmaps of the two groups for the overlapping subbands are set to 1. Setting the bitmap to 1 means that the subband needs to perform downlink reference signal measurement.

[0181] Optionally, for one of the subbands where the overlapping bandwidth is located, the terminal only receives a part of the downlink reference signal.

[0182] For example, on the subbands where two Rx hops overlap, for one of the Rx hops' subbands (such as the target subband), the terminal only receives a part of the CSI-RS in the target subband.

[0183] Optionally, a part of the CSI-RS of the target subband can be determined with a finer bandwidth granularity. For example, on the basis of the target subband, an 'xband' with a 'finer bandwidth granularity' is introduced. The bitmap length of the 'xband' corresponds to the target subband bandwidth, and each bit corresponds to one 'xband'. If the bit is 1, it means receiving CSI-RS in this 'xband'. Further, the finer granularity of the 'finer bandwidth granularity' is 1 RB.

[0184] Optionally, a part of the CSI-RS of the target subband can be N consecutive PRBs after the start or before the end of the overlapping subband.

[0185] For example, if all the bits after the target subband in the bitmap are 0, then a part of the CSI-RS is N consecutive PRBs starting from the start position of the target subband; if all the bits before the target subband in the bitmap are 0, then a part of the CSI-RS is N consecutive PRBs before the end position of the target subband.

[0186] Optionally, the target subband is the subband where the first or last bit is 1 in the bitmap of the target subband associated with the Rx hop. For example, the first or last subband with a bit of 1 can be agreed by the protocol or indicated by the network.

[0187] Optionally, in the CSI report reported by the terminal to the network device, in addition to including the CSI measurement result, it can also include at least one of the following:

[0188] 1) At least one downlink reference signal resource ID and / or downlink reference signal resource set ID corresponding to the CSI measurement result;

[0189] 2) The identifier and / or frequency domain information of at least one Rx hop corresponding to the CSI measurement result.

[0190] For example, for a certain CSI measurement result, the terminal reports at least one of the CSI-RS related ID and Rx hop information for obtaining the CSI measurement result.

[0191] Among them, the CSI-RS related ID may include at least one of the following:

[0192] 1) If Rx hopping is within a CSI-RS resource, report the CSI-RS resource ID;

[0193] 2) If Rx hopping is within a CSI-RS resource set and across different CSI-RS resources, report at least one CSI-RS resource ID and / or CSI-RS resource set ID associated with the CSI measurement result;

[0194] 3) If Rx hopping is across different CSI-RS resource sets and across different CSI-RS resources, report the CSI-RS resource ID and / or at least one CSI-RS resource set ID associated with the CSI measurement result.

[0195] Among them, the Rx hop information may include at least one of the following:

[0196] 1) At least one Rx hop ID associated with the CSI measurement result;

[0197] 2) The frequency domain information corresponding to at least one Rx hop associated with the CSI measurement result, such as starting PRB or bandwidth, etc.

[0198] In the downlink reference signal reception hopping method provided by the embodiments of the present application, the CSI-RS resource does not hop, and the UE performs Rx hopping, as Figure 3 shown. This method can be applied to a hybrid scenario where different terminals have different bandwidth requirements. Since CSI-RS may need to be received by different UEs, different UE BWPs may be different, the bandwidth requirements are different, the subband configurations are different, and CSI-RS hopping cannot meet the requirements of different UEs. Therefore, the UE may perform Rx hopping (Rx hopping) through the subband configuration.

[0199] For Rx hopping: The CSI-RS resource itself is sent through a large bandwidth, but the UE uses the Rx hopping method to receive.

[0200] Optionally, for CSI-RS transmission enhancement:

[0201] 1) If Rx hopping is performed based on different symbols / slots / periods of CSI-RS resources, the CSI-RS resources themselves need to have the function of transmitting multiple symbols or multiple slots, and there should be the same port and other associations in these occasions to meet the joint processing of the UE.

[0202] 2) If Rx hopping is performed based on different CSI-RS resources in a CSI-RS resource set, the CSI-RS resources corresponding to multiple hops should have a certain association relationship, such as the association of ports, etc., to meet the joint processing of the UE.

[0203] 3) If Rx hopping is performed based on different CSI-RS resource sets, the CSI-RS resource sets corresponding to multiple hops should have a certain association relationship, such as the association of ports, etc., to meet the joint processing of the UE.

[0204] Optionally, for CSI-RS reception enhancement:

[0205] 1) Considering that CSI-RS is very likely to be transmitted outside the BWP, it is necessary to allow the UE to receive CSI-RS outside the active BWP, and then apply MG to measure CSI-RS.

[0206] 2) Consider introducing the concept of virtual BWP or virtual bandwidth to represent the frequency domain range for the UE to perform Rx hopping.

[0207] Optionally, for subband configuration:

[0208] 1) Considering receiving CSI-RS outside the active BWP, the start point, end point, size, bitmap, etc. of the subband can be designed with reference to the 'virtual BWP' or 'Rx hop'.

[0209] 2) Considering enabling the UE to complete Rx hopping through subband configuration, it may be necessary to introduce multiple sets of subband configurations. Each set of subband configurations corresponds to a different Rx hop and is associated with the symbols / slots / periods, CSI-RS resource ID, and CSI-RS resource set ID in the CSI-RS resource.

[0210] 3) Alternatively, only configure a set of subbands and implement Rx hopping based on the UE. Further, the network configures an Rx hop indication to indicate the number of Rx hops and the total bandwidth of Rx hops, etc.

[0211] In the embodiment of the present application, the execution subject of the downlink reference signal reception hopping method can be a downlink reference signal reception hopping device. In the embodiment of the present application, taking the downlink reference signal reception hopping device executing the downlink reference signal reception hopping method as an example, the downlink reference signal reception hopping device provided by the embodiment of the present application is described.

[0212] Figure 4 It is a schematic structural diagram of the downlink reference signal reception hopping device provided by the embodiment of the present application. As Figure 4 shown, the downlink reference signal reception hopping device 400 is applied to a terminal. The downlink reference signal reception hopping device 400 includes: a receiving module 401, a processing module 402, and a reporting module 403, where:

[0213] The receiving module 401 is configured to receive the downlink reference signal sent by the network side device by receiving Rx hopping;

[0214] The processing module 402 is configured to jointly process the downlink reference signals received in multiple Rx hops in the Rx hopping to obtain a channel state information CSI measurement result;

[0215] The reporting module 403 is configured to report a CSI report to the network side device, and the CSI report includes the CSI measurement result.

[0216] In the embodiment of the present application, by receiving the downlink reference signal sent by the network side device in the way of Rx hopping, and jointly processing the downlink reference signals received in multiple Rx hops to obtain a CSI measurement result and report it, the terminal can process the downlink reference signal with a large bandwidth, and the channel state information reporting overhead is small.

[0217] Optionally, the receiving module 401 is specifically configured to perform at least one of the following:

[0218] Receive a downlink reference signal resource by Rx hopping;

[0219] Receive different downlink reference signal resources within the same downlink reference signal resource set by Rx hopping;

[0220] Receive the downlink reference signal resources within different downlink reference signal resource sets by Rx hopping.

[0221] Optionally, the receiving module 401 is specifically configured to:

[0222] Based on the first configuration information for the downlink reference signal resource, receive the downlink reference signal resource through multiple Rx hops in the Rx frequency hopping, where the first configuration information includes at least one of the following:

[0223] At least one starting time slot offset, used to indicate that the downlink reference signal resource is transmitted on at least one time slot;

[0224] At least one starting symbol information for one time slot, used to indicate that the downlink reference signal resource is transmitted on at least one starting symbol of one time slot.

[0225] Optionally, the downlink reference signal ports of the downlink reference signal resource are mapped onto X starting symbols at a time, where X is a positive integer; the downlink reference signal resource is repeatedly transmitted in units of X starting symbols; multiple repeated transmissions have the same number of ports, and ports with the same port index are the same port.

[0226] Optionally, the receiving module 401 is specifically configured to:

[0227] Based on the second configuration information for the downlink reference signal resource set, receive the downlink reference signal resource through multiple Rx hops in the Rx frequency hopping, where the second configuration information is used to indicate that the downlink reference signal resource set includes M groups of downlink reference signal resources, and M is a positive integer;

[0228] Among them, for any group of downlink reference signal resources in the M groups of downlink reference signal resources, different downlink reference signal resources satisfy at least one of the following conditions:

[0229] The ports with the same number of ports and the same port index are the same port;

[0230] Different downlink reference signal resources respectively correspond to different Rx hops;

[0231] The quasi - co - location (QCL) parameters are the same;

[0232] The power control offsets are the same;

[0233] The frequency - domain allocation parameters within the resource block (RB) are the same;

[0234] The frequency - domain density is the same;

[0235] The code - division multiplexing (CDM) types are the same;

[0236] The scrambling code identifiers (IDs) are the same.

[0237] Optionally, the receiving module 401 is specifically configured to:

[0238] Receiving the downlink reference signal resource through multiple Rx hops in the Rx hopping based on third configuration information for the downlink reference signal resource set;

[0239] Wherein, the third configuration information is used to indicate that the downlink reference signal resource set includes N groups of downlink reference signal resource lists, N being a positive integer; multiple downlink reference signal resources included in one group of downlink reference signal resource lists constitute all downlink reference signal ports; different downlink reference signal resource lists in one group of downlink reference signal resource lists satisfy at least one of the following conditions:

[0240] Different downlink reference signal resource lists respectively correspond to different Rx hops;

[0241] The number of ports of different downlink reference signal resource lists is the same, and ports with the same port index among different downlink reference signal resources are the same port;

[0242] The number of downlink reference signal resources in different downlink reference signal resource lists is the same.

[0243] Optionally, the receiving module 401 is specifically configured to:

[0244] Receiving the downlink reference signal resource through multiple Rx hops in the Rx hopping based on fourth configuration information for different downlink reference signal resource sets;

[0245] Wherein, the fourth configuration information is used for different downlink reference signal resource sets to have a first association relationship, and the first association relationship includes at least one of the following characteristics:

[0246] Different downlink reference signal resource sets respectively correspond to different Rx hops;

[0247] The number of downlink reference signal resources in different downlink reference signal resource sets is the same;

[0248] At least one first downlink reference signal resource in different downlink reference signal resource sets has a second association relationship.

[0249] Optionally, the at least one first downlink reference signal resource is determined by at least one of the following methods:

[0250] Sorting multiple downlink reference signal resources in each downlink reference signal resource set by time, and determining the at least one first downlink reference signal resource according to multiple downlink reference signal resources in the same time domain order;

[0251] Determining the at least one first downlink reference signal resource according to downlink reference signal resources with the same entry in different downlink reference signal resource sets;

[0252] Determine multiple downlink reference signal resources with the same resource identifier within the downlink reference signal resource set as the at least one first downlink reference signal resource;

[0253] Explicitly configure at least one first downlink reference signal resource having a second association relationship as a set.

[0254] Optionally, the second association relationship includes at least one of the following characteristics:

[0255] The downlink reference signal resources in different downlink reference signal resource sets have the same number of ports, and the ports with the same port index are the same port;

[0256] The downlink reference signal resources in different downlink reference signal resource sets respectively correspond to different Rx hops, and can be used for joint processing of downlink reference signal resources to obtain CSI;

[0257] The QCL of the downlink reference signal resources in different downlink reference signal resource sets is the same;

[0258] The power control offsets of the downlink reference signal resources in different downlink reference signal resource sets are the same;

[0259] The in-band frequency domain allocation parameters of the downlink reference signal resources in different downlink reference signal resource sets are the same;

[0260] The frequency domain density of the downlink reference signal resources in different downlink reference signal resource sets is the same;

[0261] The scrambling IDs of the downlink reference signal resources in different downlink reference signal resource sets are the same;

[0262] The CDM types of the downlink reference signal resources in different downlink reference signal resource sets are the same.

[0263] Optionally, during the process that the receiving module 401 receives the downlink reference signal sent by the network side device through Rx hopping, the receiving module 401 satisfies any one of the following:

[0264] The receiving module 401 receives the downlink reference signal within the active bandwidth part (active BWP);

[0265] The receiving module 401 receives the downlink reference signal outside the active BWP.

[0266] Optionally, the receiving module 401 is specifically configured to:

[0267] Receive the downlink reference signal outside the active BWP when at least one of the following conditions is satisfied:

[0268] Network configuration enabling conditions for enabling the terminal to receive downlink reference signals outside the active BWP range;

[0269] Network configuration of Rx frequency hopping;

[0270] Network configuration of the measurement gap MG;

[0271] Network configuration of the virtual BWP.

[0272] Optionally, the receiving module 401 is specifically configured to perform at least one of the following:

[0273] The terminal ignores the limitation of the downlink reference signal frequency domain range by the active BWP;

[0274] The terminal receives downlink reference signals during the measurement gap MG;

[0275] The terminal receives downlink reference signals within the virtual BWP.

[0276] Optionally, the virtual BWP satisfies at least one of the following:

[0277] The bandwidth of the virtual BWP is greater than the maximum bandwidth supported by the terminal;

[0278] The bandwidth received or processed by the terminal in the virtual BWP at the same moment does not exceed the maximum bandwidth supported by the terminal;

[0279] The bandwidth of the virtual BWP does not exceed the total bandwidth of Rx frequency hopping jointly processed by the terminal;

[0280] The bandwidth of the virtual BWP does not exceed the carrier bandwidth;

[0281] The bandwidth range of the virtual BWP includes the total bandwidth of Rx frequency hopping;

[0282] The terminal only processes downlink reference signals on the virtual BWP;

[0283] The parameter set of the virtual BWP is the same as that of the downlink reference signal;

[0284] The frequency domain position reference point of the virtual BWP is the starting point of the carrier or reference point A.

[0285] Optionally, the processing module 402 is specifically configured to:

[0286] After receiving the downlink reference signal outside the active BWP range, switch to the active BWP.

[0287] Optionally, when the receiving module 401 receives a downlink reference signal outside the active BWP range, the receiving module 401 satisfies at least one of the following:

[0288] The receiving module 401 ignores the BWP ID included in the message for activating or deactivating the semi-persistent downlink reference signal;

[0289] The receiving module 401 does not expect the BWP ID to be included in the message for activating or deactivating the semi-persistent downlink reference signal;

[0290] The BWP ID included in the message for activating or deactivating the semi-persistent downlink reference signal received by the receiving module 401 is used to indicate a virtual BWP;

[0291] The message for activating or deactivating the semi-persistent downlink reference signal received by the receiving module 401 includes an indication of the virtual BWP.

[0292] Optionally, the processing module 402 is configured to perform downlink reference signal measurement in the frequency domain by means of Rx hopping according to at least one set of sub-band configurations;

[0293] The reporting module 403 is configured to report a CSI report;

[0294] Wherein, the at least one set of sub-band configurations includes at least one of: the start point of the sub-band, the end point of the sub-band, the bitmap of the sub-band, and the size of the sub-band.

[0295] Optionally, at least one of the start point of the sub-band, the end point of the sub-band, and the bitmap of the sub-band is determined according to a target frequency domain range;

[0296] Wherein, the target frequency domain range includes at least one of: the active BWP, the virtual BWP, the full bandwidth frequency domain range of the downlink reference signal Rx hopping, the downlink reference signal frequency domain range, the frequency domain range corresponding to Rx hop, and the carrier.

[0297] Optionally, the size of the sub-band is mapped according to the target bandwidth; or, the size of the sub-band is indicated by the network side device from at least one candidate value, and the at least one candidate value is mapped according to the target bandwidth;

[0298] Wherein, the target bandwidth includes at least one of: the bandwidth consistent with the target frequency domain range, the Rx hop bandwidth, and the bandwidth indicated by the network.

[0299] Optionally, the size of the first sub-band is not greater than the sizes of other sub-bands to align the first PRB of the target frequency domain range; and / or,

[0300] The size of the last sub-band is not greater than the sizes of other sub-bands, so as to align the last PRB of the target frequency-domain range.

[0301] Optionally, in the case where there is no overlapping bandwidth between Rx hops, the terminal does not expect a sub-band to contain multiple Rx hops.

[0302] Optionally, multiple Rx hops are associated with a set of sub-band configurations, and the set of sub-band configurations is used for the terminal to perform Rx frequency hopping.

[0303] Optionally, the receiving module 401 is further configured to receive network indication information sent by the network-side device, and the network indication information is used to indicate the terminal to perform Rx frequency hopping.

[0304] Optionally, the network indication information includes at least one of the following:

[0305] An Rx hop enable flag, which is used to enable the terminal to perform Rx frequency hopping;

[0306] The number of Rx hops;

[0307] The total bandwidth of Rx hops;

[0308] The overlapping bandwidth;

[0309] The longest Rx hop duration;

[0310] The number of repetitions occupied by one Rx hop;

[0311] The downlink reference signal resource level corresponding to the Rx hop, and the downlink reference signal resource level includes at least one of within one downlink reference signal resource, different downlink reference signals within the same downlink reference signal set, and across different downlink reference signal sets.

[0312] Optionally, each Rx hop is associated with a set of sub-band configurations; multiple sets of sub-band configurations are used for the terminal to perform Rx frequency hopping; the starting point of the sub-band, the ending point of the sub-band, the bitmap length of the sub-band, and the size of the sub-band in the multiple sets of sub-band configurations are the same, and the bitmaps of the sub-bands are different;

[0313] And / or, the starting point of the sub-band, the ending point of the sub-band, the bitmap length of the sub-band, the bitmap content of the sub-band, and the size of the sub-band in each set of sub-band configurations are configured according to the Rx hop associated with the sub-band configuration.

[0314] Optionally, the number of sets of the sub-band configurations is equal to the number of Rx hops.

[0315] Optionally, the sub-band configuration has at least one of the following association relationships with the downlink reference signal resource:

[0316] A set of sub - band configurations associates with a repetition of a downlink reference signal resource;

[0317] A set of sub - band configurations associates with one or more downlink reference signal resource IDs;

[0318] A set of sub - band configurations associates with one or more downlink reference signal resource set IDs.

[0319] Optionally, in multiple Rx hops associated with multiple sets of sub - band configurations, there is an overlapping bandwidth between adjacent Rx hops in the frequency domain.

[0320] Optionally, there is an overlap in the sub - bands where the overlapping bandwidth is located.

[0321] Optionally, for one of the sub - bands where the overlapping bandwidth is located, the terminal only receives a part of the downlink reference signal.

[0322] Optionally, the CSI report further includes at least one of the following:

[0323] At least one downlink reference signal resource ID and / or downlink reference signal resource set ID corresponding to the CSI measurement result;

[0324] The identifier and / or frequency - domain information of at least one Rx hop corresponding to the CSI measurement result.

[0325] The downlink reference signal receiving frequency - hopping device in the embodiments of the present application can be an electronic device, such as an electronic device with an operating system, or a component in an electronic device, such as an integrated circuit or a chip. This electronic device can be a terminal or other devices other than the terminal. Exemplarily, the terminal can include, but is not limited to, the types of terminal 11 listed above, and other devices can be a server, a Network Attached Storage (NAS), etc., which are not specifically limited in the embodiments of the present application.

[0326] The downlink reference signal receiving frequency - hopping device provided by the embodiments of the present application can achieve Figure 2 each process implemented by the method embodiments shown and achieve the same technical effects. To avoid repetition, it will not be elaborated here.

[0327] The embodiments of the present application further provide a terminal, Figure 5 which is a schematic structural diagram of the terminal provided by the embodiments of the present application, as Figure 5As shown in the figure, an embodiment of the present application further provides a terminal 500, including a processor 501 and a memory 502. A program or instruction that can run on the processor 501 is stored on the memory 502. When the program or instruction is executed by the processor 501, each step of the above-mentioned embodiment of the downlink reference signal receiving hopping method is implemented, and the same technical effect can be achieved. To avoid repetition, it will not be elaborated here.

[0328] An embodiment of the present application further provides a terminal, including a processor and a communication interface. The communication interface is coupled to the processor, and the processor is used to run a program or instruction to implement each step of the above-mentioned embodiment of the downlink reference signal receiving hopping method. This terminal embodiment corresponds to the above-mentioned terminal-side method embodiment. Each implementation process and implementation manner of the above method embodiment can be applied to this terminal embodiment, and the same technical effect can be achieved.

[0329] An embodiment of the present application further provides a terminal Figure 6 is a schematic diagram of the hardware structure of the terminal provided by an embodiment of the present application. As Figure 6 shown, the terminal 600 includes, but is not limited to: at least some components such as a radio frequency unit 601, a network module 602, an audio output unit 603, an input unit 604, a sensor 605, a display unit 606, a user input unit 607, an interface unit 608, a memory 609, and a processor 610.

[0330] Those skilled in the art can understand that the terminal 600 may further include a power supply (such as a battery) for supplying power to each component. The power supply can be logically connected to the processor 610 through a power management system, so as to implement functions such as management of charging, discharging, and power consumption management through the power management system. Figure 6 The terminal structure shown in the figure does not constitute a limitation on the terminal. The terminal may include more or fewer components than shown in the figure, or combine some components, or have different component arrangements, which will not be elaborated here.

[0331] It should be understood that in the embodiments of the present application, the input unit 604 may include a Graphics Processing Unit (GPU) 6041 and a microphone 6042. The graphics processing unit 6041 processes the image data of static pictures or videos obtained by an image capturing device (such as a camera) in a video capture mode or an image capture mode. The display unit 606 may include a display panel 6061, and the display panel 6061 may be configured in the form of, for example, a liquid crystal display, an organic light emitting diode, etc. The user input unit 607 includes at least one of a touch panel 6071 and other input devices 6072. The touch panel 6071 is also referred to as a touch screen. The touch panel 6071 may include two parts: a touch detection device and a touch controller. The other input devices 6072 may include, but are not limited to, a physical keyboard, function keys (such as volume control keys, power on / off keys, etc.), a trackball, a mouse, and a joystick, which will not be elaborated here.

[0332] In the embodiments of the present application, after receiving downlink data from a network-side device, the radio frequency unit 601 may transmit it to the processor 610 for processing; in addition, the radio frequency unit 601 may send uplink data to the network-side device. Generally, the radio frequency unit 601 includes, but is not limited to, an antenna, an amplifier, a transceiver, a coupler, a low-noise amplifier, a duplexer, etc.

[0333] The memory 609 can be used to store software programs or instructions as well as various data. The memory 609 may mainly include a first storage area for storing programs or instructions and a second storage area for storing data. Among them, the first storage area can store an operating system, application programs or instructions required for at least one function (such as a sound playback function, an image playback function, etc.). In addition, the memory 609 can include volatile memory or non-volatile memory. Among them, the non-volatile memory can be a read-only memory (ROM), a programmable read-only memory (PROM), an erasable programmable read-only memory (EPROM), an electrically erasable programmable read-only memory (EEPROM), or a flash memory. The volatile memory can be a random access memory (RAM), a static random access memory (SRAM), a dynamic random access memory (DRAM), a synchronous dynamic random access memory (SDRAM), a double data rate synchronous dynamic random access memory (DDR SDRAM), an enhanced synchronous dynamic random access memory (ESDRAM), a synchronous link dynamic random access memory (SLDRAM), and a direct rambus random access memory (DRRAM). The memory 609 in the embodiments of the present application includes but is not limited to these and any other suitable types of memory.

[0334] The processor 610 may include one or more processing units; optionally, the processor 610 integrates an application processor and a modem processor. Among them, the application processor mainly processes operations related to the operating system, user interface, and application programs, etc., and the modem processor mainly processes wireless communication signals, such as a baseband processor. It can be understood that the above modem processor may not be integrated into the processor 610.

[0335] Among them, the radio frequency unit 601 is used to receive the downlink reference signal sent by the network-side device by means of receiving Rx frequency hopping;

[0336] The processor 610 is used to jointly process the downlink reference signals received by multiple Rx hops in the Rx frequency hopping to obtain a channel state information CSI measurement result;

[0337] The radio frequency unit 601 is further configured to report a CSI report to the network-side device, where the CSI report includes the CSI measurement result.

[0338] In the embodiment of the present application, the terminal receives the downlink reference signal sent by the network-side device by means of Rx hopping, and jointly processes the downlink reference signals received on multiple Rx hops to obtain the CSI measurement result and report it, so that the terminal can process the downlink reference signal with a large bandwidth and the channel state information reporting overhead is small.

[0339] It can be understood that the implementation processes of the various implementation manners mentioned in this embodiment can refer to the relevant descriptions of the embodiment of the downlink reference signal receiving hopping method above, and achieve the same or corresponding technical effects. To avoid repetition, they will not be elaborated here.

[0340] The embodiment of the present application further provides a readable storage medium, on which a program or instruction is stored. When the program or instruction is executed by a processor, it implements each process of the embodiment of the downlink reference signal receiving hopping method above, and can achieve the same technical effect. To avoid repetition, it will not be elaborated here.

[0341] Wherein, the processor is the processor in the terminal described in the above embodiment. The readable storage medium includes computer-readable storage media, such as computer read-only memory ROM, random access memory RAM, magnetic disk or optical disc, etc. In some examples, the readable storage medium may be a non-transitory readable storage medium.

[0342] The embodiment of the present application further provides a chip, which includes a processor and a communication interface. The communication interface is coupled to the processor, and the processor is configured to run a program or instruction to implement each process of the embodiment of the downlink reference signal receiving hopping method above, and can achieve the same technical effect. To avoid repetition, it will not be elaborated here.

[0343] It should be understood that the chip mentioned in the embodiment of the present application may also be referred to as a system-on-chip, system chip, chip system or system-on-chip, etc.

[0344] The embodiment of the present application further provides a computer program / program product, which is stored in a storage medium. The computer program / program product is executed by at least one processor to implement each process of the embodiment of the downlink reference signal receiving hopping method above, and can achieve the same technical effect. To avoid repetition, it will not be elaborated here.

[0345] It should be noted that in this text, the term "including", "comprising" or any other variant thereof is intended to cover non-exclusive inclusion, such that a process, method, article or device comprising a series of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article or device. Without further limitation, an element defined by the statement "comprising an..." does not exclude the presence of additional identical elements in the process, method, article or device comprising such element. In addition, it should be pointed out that the scope of the methods and devices in the embodiments of the present application is not limited to performing functions in the order shown or discussed, and may also include performing functions in a substantially simultaneous manner or in a reverse order according to the functions involved. For example, the described methods may be performed in an order different from that described, and various steps may be added, omitted or combined. Additionally, the features described with reference to certain examples may be combined in other examples.

[0346] Through the description of the above embodiments, those skilled in the art can clearly understand that the methods of the above embodiments can be implemented by means of a computer software product plus a necessary general hardware platform, and of course, can also be implemented by hardware. This computer software product is stored in a storage medium (such as ROM, RAM, magnetic disk, optical disc, etc.) and includes several instructions for causing a terminal or a network-side device to execute the methods described in various embodiments of the present application.

[0347] The embodiments of the present application have been described above in conjunction with the accompanying drawings. However, the present application is not limited to the above specific embodiments. The above specific embodiments are merely illustrative and not restrictive. Under the inspiration of the present application, those of ordinary skill in the art can also make many forms of embodiments without departing from the purpose of the present application and the scope protected by the claims. These embodiments are all within the protection scope of the present application.

Claims

1. A method for receiving hopping of downlink reference signals, characterized in that including: The terminal receives the downlink reference signal sent by the network - side device by means of Rx frequency hopping. The terminal jointly processes the downlink reference signals received in multiple Rx hops in the Rx frequency hopping to obtain a channel state information (CSI) measurement result. The terminal reports a CSI report to the network - side device, and the CSI report includes the CSI measurement result.

2. The downlink reference signal receiving frequency hopping method according to claim 1, wherein The terminal receives the downlink reference signal sent by the network - side device by means of Rx frequency hopping, including at least one of the following: The terminal receives a downlink reference signal resource by means of Rx frequency hopping. The terminal receives different downlink reference signal resources within the same downlink reference signal resource set by means of Rx frequency hopping. The terminal receives the downlink reference signal resources within different downlink reference signal resource sets by means of Rx frequency hopping.

3. The downlink reference signal receiving frequency hopping method according to claim 2, characterized in that The terminal receives a downlink reference signal resource by means of Rx frequency hopping, including: Based on the first configuration information for the downlink reference signal resource, the terminal receives the downlink reference signal resource through multiple Rx hops in the Rx frequency hopping, where the first configuration information includes at least one of the following: At least one starting time - slot offset, used to indicate that the downlink reference signal resource is sent in at least one time - slot. At least one starting symbol information for one time - slot, used to indicate that the downlink reference signal resource is sent on at least one starting symbol of one time - slot.

4. The downlink reference signal receiving frequency hopping method according to claim 3, wherein The downlink reference signal ports of the downlink reference signal resource are mapped to X starting symbols at a time, where X is a positive integer; the downlink reference signal resource is repeatedly sent in units of X starting symbols; the multiple repeated transmissions have the same number of ports, and the ports with the same port index are the same port.

5. The downlink reference signal reception hopping method according to claim 2, characterized in that The terminal receives different downlink reference signal resources within the same downlink reference signal resource set by means of Rx frequency hopping, including: Based on the second configuration information for the downlink reference signal resource set, the terminal receives the downlink reference signal resource through multiple Rx hops in the Rx frequency hopping, and the second configuration information is used to indicate that the downlink reference signal resource set includes M groups of downlink reference signal resources, where M is a positive integer. Among them, for any group of downlink reference signal resources in the M groups of downlink reference signal resources, the different downlink reference signal resources satisfy at least one of the following conditions: The number of ports is the same, and the ports with the same port index are the same port. The different downlink reference signal resources respectively correspond to different Rx hops. The quasi - co - location (QCL) parameters are the same. The power control offsets are the same. The frequency - domain allocation parameters within the resource block (RB) are the same. The frequency - domain density is the same. The code - division multiplexing (CDM) types are the same. The scrambling code identification (ID) is the same.

6. The downlink reference signal receiving frequency hopping method according to claim 2, characterized in that, The terminal receives different downlink reference signal resources within the same downlink reference signal resource set by means of Rx frequency hopping, including: Based on the third configuration information for the downlink reference signal resource set, the terminal receives the downlink reference signal resource through multiple Rx hops in the Rx frequency hopping. Among them, the third configuration information is used to indicate that there are N groups of downlink reference signal resource lists in the downlink reference signal resource set, where N is a positive integer; a group of downlink reference signal resource lists includes multiple downlink reference signal resources that constitute all downlink reference signal ports; different downlink reference signal resource lists in a group of downlink reference signal resource lists satisfy at least one of the following conditions: Different downlink reference signal resource lists correspond to different Rx hops respectively; The number of ports of different downlink reference signal resource lists is the same, and ports with the same port index in different downlink reference signal resources are the same port; The number of downlink reference signal resources in different downlink reference signal resource lists is the same.

7. The downlink reference signal receiving frequency hopping method according to claim 2, characterized in that The terminal receives downlink reference signal resources in different downlink reference signal resource sets by means of Rx frequency hopping, including: The terminal receives the downlink reference signal resources through multiple Rx hops in the Rx frequency hopping based on the fourth configuration information for the different downlink reference signal resource sets; Among them, the fourth configuration information is used for the different downlink reference signal resource sets to have a first association relationship, and the first association relationship includes at least one of the following characteristics: Different downlink reference signal resource sets correspond to different Rx hops respectively; The number of downlink reference signal resources in different downlink reference signal resource sets is the same; At least one first downlink reference signal resource in different downlink reference signal resource sets has a second association relationship.

8. The downlink reference signal receiving frequency hopping method according to claim 7, characterized in that, The at least one first downlink reference signal resource is determined by at least one of the following methods: Sort the multiple downlink reference signal resources in each downlink reference signal resource set by time, and determine the at least one first downlink reference signal resource according to the multiple downlink reference signal resources in the same time domain order; Determine the at least one first downlink reference signal resource according to the downlink reference signal resources at the same entrance in the different downlink reference signal resource sets; Determine multiple downlink reference signal resources with the same resource identifier in the downlink reference signal resource set as the at least one first downlink reference signal resource; Explicitly configure at least one first downlink reference signal resource with a second association relationship as a set.

9. The downlink reference signal receiving frequency hopping method according to claim 8, wherein The second association relationship includes at least one of the following characteristics: The downlink reference signal resources in different downlink reference signal resource sets have the same number of ports, and ports with the same port index are the same port; The downlink reference signal resources in different downlink reference signal resource sets correspond to different Rx hops respectively, and can be used for joint processing of downlink reference signal resources to obtain CSI; The QCL of the downlink reference signal resources in different downlink reference signal resource sets is the same; The power control offset of the downlink reference signal resources in different downlink reference signal resource sets is the same; The RB inner frequency domain allocation parameters of the downlink reference signal resources in different downlink reference signal resource sets are the same; The frequency domain density of the downlink reference signal resources in different downlink reference signal resource sets is the same; The scrambling ID of the downlink reference signal resources in different downlink reference signal resource sets is the same; The CDM types of the downlink reference signal resources within different downlink reference signal resource sets are the same.

10. The downlink reference signal receiving frequency hopping method according to any one of claims 1 to 9, characterized in that During the process in which the terminal receives the downlink reference signal sent by the network-side device through Rx frequency hopping, the terminal satisfies any one of the following: The terminal receives the downlink reference signal within the active bandwidth part (active BWP); The terminal receives the downlink reference signal outside the active BWP.

11. The downlink reference signal receiving frequency hopping method according to claim 10, wherein The terminal receiving the downlink reference signal outside the active BWP includes: When at least one of the following conditions is satisfied, the terminal receives the downlink reference signal outside the active BWP: A network configuration enabling condition for enabling the terminal to receive the downlink reference signal outside the active BWP; The network configures Rx frequency hopping; The network configures the measurement gap (MG); The network configures a virtual BWP.

12. The downlink reference signal receiving frequency hopping method according to claim 10 or 11, characterized in that, The terminal receiving the downlink reference signal outside the active BWP includes at least one of the following: The terminal ignores the limitation of the active BWP on the frequency domain range of the downlink reference signal; The terminal receives the downlink reference signal during the measurement gap (MG); The terminal receives the downlink reference signal within the virtual BWP.

13. The downlink reference signal receiving frequency hopping method according to claim 12, wherein The virtual BWP satisfies at least one of the following: The bandwidth of the virtual BWP is greater than the maximum bandwidth supported by the terminal; At the same time, the bandwidth received or processed by the terminal within the virtual BWP does not exceed the maximum bandwidth supported by the terminal; The bandwidth of the virtual BWP does not exceed the total Rx frequency hopping bandwidth jointly processed by the terminal; The bandwidth of the virtual BWP does not exceed the carrier bandwidth; The bandwidth range of the virtual BWP includes the total Rx frequency hopping bandwidth; The terminal only processes the downlink reference signal on the virtual BWP; The parameter set of the virtual BWP is the same as that of the downlink reference signal; The frequency domain position reference point of the virtual BWP is the starting point of the carrier or reference point A.

14. The downlink reference signal receiving hopping method according to any one of claims 11 to 13, characterized in that The method further includes: After receiving the downlink reference signal outside the active BWP, the terminal switches to the active BWP.

15. The downlink reference signal reception hopping method according to any one of claims 11 to 13, characterized in that, When the terminal receives the downlink reference signal outside the active BWP, the terminal satisfies at least one of the following: The terminal ignores the BWP ID included in the message for activating or deactivating the semi-persistent downlink reference signal; The terminal does not expect the BWP ID to be included in the message for activating or deactivating the semi-persistent downlink reference signal; The BWP ID included in the message for activating or deactivating the semi-persistent downlink reference signal received by the terminal is used to indicate the virtual BWP; The message for activating or deactivating the semi-persistent downlink reference signal received by the terminal includes an indication of the virtual BWP.

16. The downlink reference signal receiving frequency hopping method according to any one of claims 1 to 15, characterized in that, The method further includes: The terminal performs downlink reference signal measurement and / or reports a CSI report in the frequency domain through Rx frequency hopping according to at least one set of sub-band configurations; Wherein, the at least one set of sub-band configurations includes at least one of the starting point of the sub-band, the ending point of the sub-band, the bitmap of the sub-band, and the size of the sub-band.

17. The downlink reference signal receiving frequency hopping method according to claim 16, wherein At least one of the start point of the sub-band, the end point of the sub-band, and the bitmap of the sub-band is determined according to the target frequency domain range; Wherein, the target frequency domain range includes at least one of active BWP, virtual BWP, downlink reference signal Rx hopping full bandwidth frequency domain range, downlink reference signal frequency domain range, frequency domain range corresponding to Rx hop, and carrier.

18. The downlink reference signal receiving frequency hopping method according to claim 17, characterized in that, The size of the sub-band is mapped according to the target bandwidth; or, the size of the sub-band is indicated by the network side device from at least one candidate value, and the at least one candidate value is mapped according to the target bandwidth; Wherein, the target bandwidth includes at least one of the bandwidth consistent with the target frequency domain range, Rx hop bandwidth, and bandwidth indicated by the network.

19. The downlink reference signal receiving frequency hopping method according to claim 18, characterized in that The size of the first sub-band is not greater than the sizes of other sub-bands to align the first PRB of the target frequency domain range; and / or, The size of the last sub-band is not greater than the sizes of other sub-bands to align the last PRB of the target frequency domain range.

20. The downlink reference signal receiving frequency hopping method according to any one of claims 16 to 19, characterized in that, In the case where there is no overlapping bandwidth between Rx hops, the terminal does not expect a sub-band to contain multiple Rx hops.

21. The downlink reference signal reception frequency hopping method according to any one of claims 16 to 20, characterized in that, Multiple Rx hops are associated with a group of sub-band configurations, and the group of sub-band configurations is used for the terminal to perform Rx hopping.

22. The downlink reference signal receiving frequency hopping method according to any one of claims 1 to 21, characterized in that, The method further includes: the terminal receives network indication information sent by the network side device, and the network indication information is used to instruct the terminal to perform Rx hopping.

23. The downlink reference signal receiving frequency hopping method according to claim 22, characterized in that The network indication information includes at least one of the following: Rx hop enable identifier, used to enable the terminal to perform Rx hopping; Number of Rx hops; Total bandwidth of Rx hops; Overlapping bandwidth; Longest Rx hop duration; Number of repetitions occupied by one Rx hop; Downlink reference signal resource level corresponding to Rx hop, and the downlink reference signal resource level includes at least one of within one downlink reference signal resource, different downlink reference signal resources within the same downlink reference signal resource set, and across different downlink reference signal resource sets.

24. The downlink reference signal receiving frequency hopping method according to any one of claims 16 to 20, characterized in that, Each Rx hop is associated with a group of sub-band configurations; multiple groups of sub-band configurations are used for the terminal to perform Rx hopping; the start point of the sub-band, the end point of the sub-band, the bitmap length of the sub-band, and the size of the sub-band in the multiple groups of sub-band configurations are the same, and the bitmaps of the sub-bands are different; And / or, the start point of the sub-band, the end point of the sub-band, the bitmap length of the sub-band, the bitmap content of the sub-band, and the size of the sub-band in each group of sub-band configurations are configured according to the Rx hop associated with the sub-band configuration.

25. The downlink reference signal receiving frequency hopping method according to claim 24, characterized in that, The number of groups of the sub-band configurations is equal to the number of Rx hops.

26. The downlink reference signal receiving frequency hopping method according to claim 24 or 25, characterized in that The sub-band configuration has at least one of the following association relationships with the downlink reference signal resource: A group of sub-band configurations is associated with a repetition of a downlink reference signal resource; A group of sub-band configurations is associated with one or more downlink reference signal resource IDs; A group of sub-band configurations is associated with one or more downlink reference signal resource set IDs.

27. The downlink reference signal receiving frequency hopping method according to any one of claims 1 to 26, characterized in that The CSI report further includes at least one of the following: At least one downlink reference signal resource ID and / or downlink reference signal resource set ID corresponding to the CSI measurement result; Identifiers and / or frequency domain information of at least one Rx hop corresponding to the CSI measurement result.

28. A downlink reference signal receiving frequency hopping device, characterized in that, Comprising: A receiving module, configured to receive a downlink reference signal sent by a network-side device by receiving Rx frequency hopping; A processing module, configured to jointly process the downlink reference signals received by multiple Rx hops in the Rx frequency hopping to obtain a channel state information (CSI) measurement result; A reporting module, configured to report a CSI report to the network-side device, where the CSI report includes the CSI measurement result.

29. The downlink reference signal receiving frequency hopping device according to claim 28, characterized in that, The receiving module is specifically configured to perform at least one of the following: Receive a downlink reference signal resource by means of Rx frequency hopping; Receive different downlink reference signal resources within the same downlink reference signal resource set by means of Rx frequency hopping; Receive downlink reference signal resources within different downlink reference signal resource sets by means of Rx frequency hopping.

30. The downlink reference signal receiving frequency hopping device according to claim 28 or 29, characterized in that, The receiving module is further configured to receive network indication information sent by the network-side device, where the network indication information is used to instruct the terminal to perform Rx frequency hopping.

31. A terminal, characterized in that, Comprising a processor and a memory, where the memory stores a program or instruction that can run on the processor, and when the program or instruction is executed by the processor, the steps of the downlink reference signal receiving frequency hopping method according to any one of claims 1 to 27 are implemented.

32. A readable storage medium, characterized in that, A program or instruction is stored on the readable storage medium, and when the program or instruction is executed by a processor, the downlink reference signal receiving frequency hopping method according to any one of claims 1 to 27 is implemented.

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