Channel measurement method, apparatus, and network device

Abstract

Embodiments of the present application provide a channel measurement method, device and network equipment, the method comprising: determining a new radio dynamic spectrum sharing (NR DSS) bandwidth on a long term evolution (LTE) bandwidth; transmitting a periodic channel state information reference signal (CSI-RS) on the NR DSS bandwidth; receiving an aperiodic sub-band channel state information (CSI) reported by a terminal according to the CSI-RS; and calculating a channel measurement value on the NR DSS bandwidth according to the NR DSS bandwidth and the sub-band CSI. The above scheme, based on a channel measurement method combining periodic CSI-RS and aperiodic sub-band CSI, can accurately and efficiently calculate channel measurement information of NR on an LTE shared bandwidth, without causing negative effects on 4G services, greatly improving the technical superiority of 4G and 5G dynamic spectrum sharing schemes.

Description

Technical Field

[0001] This invention relates to the field of mobile communication technology, and in particular to a channel measurement method, apparatus, and network equipment. Background Technology

[0002] In the early stages of 5G deployment, terminal penetration and the number of users are still relatively low. Considering the smooth evolution and transition from 4G to 5G networks, reserving dedicated carriers for 5G deployment in low frequencies may result in low spectrum utilization efficiency. Therefore, a dynamic spectrum sharing approach between 4G and 5G is needed. This means that Long Term Evolution (LTE) and New Radio (NR) operate on the same carrier bandwidth, sharing a spectrum resource. The spectrum bandwidth can be dynamically shared between LTE and NR based on the proportion of services, enabling a smooth evolution and transition from 4G to 5G. However, a major challenge during this dynamic spectrum sharing process is how NR can perform channel measurements on LTE bandwidth without negatively impacting 4G services.

[0003] Existing implementations utilize channel measurements obtained from the actual bandwidth used by NR to derive equivalent channel measurements for the LTE shared spectrum. This method is relatively simple, but in reality, neighboring cell interference and frequency-selective fading differ between the actual bandwidth used by NR and the bandwidth used for New Radio Dynamic Spectrum Sharing (NR DSS). Therefore, existing methods cannot accurately reflect NR channel detection information within the LTE bandwidth. Summary of the Invention

[0004] This invention provides a channel measurement method, apparatus, and device to address the problem that existing technologies cannot accurately reflect NR channel detection information on LTE bandwidth.

[0005] In a first aspect, embodiments of the present invention provide a channel measurement method, the method comprising:

[0006] Determine the new radio dynamic spectrum sharing (NR DSS) bandwidth on the LTE bandwidth;

[0007] Periodic channel state information reference signal CSI-RS is transmitted over the NR DSS bandwidth;

[0008] The receiving terminal receives the aperiodic subband channel status information (CSI) reported by the CSI-RS.

[0009] Calculate the channel measurement value on the NR DSS bandwidth based on the NR DSS bandwidth and the subband CSI.

[0010] Optionally, before calculating the channel measurement value on the NR DSS bandwidth based on the NR DSS bandwidth and the subband CSI, the method further includes:

[0011] Obtain the number of the first sub-bands within the LTE bandwidth;

[0012] The step of obtaining channel measurement values ​​on the NR DSS bandwidth based on the NR DSS bandwidth and the subband CSI includes:

[0013] The number of second subbands within the NR DSS bandwidth is calculated based on the NR DSS bandwidth, the LTE bandwidth, and the number of the first subbands.

[0014] Based on the number of the first sub-band, the number of the second sub-band, and the sub-band CSI, calculate the channel measurement value on the NR DSS bandwidth.

[0015] Optionally, calculating the number of second subbands within the NR DSS bandwidth based on the NR DSS bandwidth, the LTE bandwidth, and the number of the first subbands includes:

[0016] Based on the NR DSS bandwidth, obtain the number of first radio bearers (RBs) within the NR DSS bandwidth;

[0017] Based on the LTE bandwidth, obtain the number of second RBs within the LTE bandwidth;

[0018] The number of second subbands within the NR DSS bandwidth is calculated based on the number of the first RB, the number of the second RB, and the number of the first subband.

[0019] Optionally, calculating the channel measurement value on the NR DSS bandwidth based on the number of the first sub-band, the number of the second sub-band, and the sub-band CSI includes:

[0020] Based on the number of the first sub-band and the number of the second sub-band, calculate the first proportion of the number of the second sub-band in the number of the first sub-band;

[0021] Based on the subband CSI and the first ratio, calculate the channel measurement value on the NR DSS bandwidth.

[0022] Optionally, the subband CSI includes: a first average channel quality indicator (CQI) over the LTE bandwidth and a subband CQI offset value for each subband CQI relative to the first average CQI.

[0023] Optionally, calculating the channel measurement value on the NR DSS bandwidth based on the subband CSI and the first ratio includes:

[0024] Calculate the second average CQI on the NR DSS bandwidth based on the first average CQI and the first ratio;

[0025] Based on the second average CQI, the downlink channel measurement value on the NR DSS bandwidth is obtained.

[0026] Optionally, obtaining the downlink channel measurement value on the NR DSS bandwidth based on the second average CQI includes:

[0027] Based on the first ratio and the subband CQI offset value of the i-th subband on the LTE bandwidth, calculate the subband CQI offset value of the i-th subband on the NR DSS bandwidth;

[0028] The CQI of the i-th sub-band on the NR DSS bandwidth is calculated based on the second average CQI and the sub-band CQI offset value of the i-th sub-band on the NR DSS bandwidth.

[0029] Based on the CQI of the i-th subband on the NR DSS bandwidth, obtain the downlink channel measurement value on the NR DSS bandwidth;

[0030] Where i is a positive integer less than or equal to the number of the second sub-band.

[0031] Optionally, before transmitting the periodic channel state information reference signal CSI-RS on the NR DSS bandwidth, the method further includes:

[0032] The periodic CSI-RS configured to be transmitted over the NR DSS bandwidth.

[0033] Optionally, before the receiving terminal reports the aperiodic subband channel state information (CSI) from the CSI-RS, the method further includes:

[0034] Configure the terminal to non-periodic subband CSI reporting mode.

[0035] Optionally, after configuring the terminal to a non-periodic subband CSI reporting mode, the method further includes:

[0036] Downlink control information (DCI) is sent to the terminal, and the DCI is used to trigger the terminal's aperiodic subband CSI reporting mode.

[0037] Secondly, embodiments of the present invention also provide a network device, including a memory, a transceiver, and a processor:

[0038] Memory is used to store computer programs; transceiver is used to send and receive data under the control of the processor; processor is used to read the computer programs from memory and perform the following operations:

[0039] Determine the new radio dynamic spectrum sharing (NR DSS) bandwidth on the LTE bandwidth;

[0040] Periodic channel state information reference signal CSI-RS is transmitted over the NR DSS bandwidth;

[0041] The receiving terminal receives the aperiodic subband channel status information (CSI) reported by the CSI-RS.

[0042] Calculate the channel measurement value on the NR DSS bandwidth based on the NR DSS bandwidth and the subband CSI.

[0043] Optionally, before the processor performs the calculation of channel measurements on the NR DSS bandwidth based on the NR DSS bandwidth and the subband CSI, the processor is further configured to:

[0044] Obtain the number of the first sub-bands within the LTE bandwidth;

[0045] Specifically, when the processor executes the process of obtaining channel measurement values ​​on the NR DSS bandwidth based on the NR DSS bandwidth and the subband CSI, it is used for:

[0046] The number of second subbands within the NR DSS bandwidth is calculated based on the NR DSS bandwidth, the LTE bandwidth, and the number of the first subbands.

[0047] Based on the number of the first sub-band, the number of the second sub-band, and the sub-band CSI, calculate the channel measurement value on the NR DSS bandwidth.

[0048] Optionally, when the processor calculates the number of second subbands within the NR DSS bandwidth based on the NR DSS bandwidth, the LTE bandwidth, and the number of the first subbands, it specifically performs the following:

[0049] Based on the NR DSS bandwidth, obtain the number of first radio bearers (RBs) within the NR DSS bandwidth;

[0050] Based on the LTE bandwidth, obtain the number of second RBs within the LTE bandwidth;

[0051] The number of second subbands within the NR DSS bandwidth is calculated based on the number of the first RB, the number of the second RB, and the number of the first subband.

[0052] Optionally, when the processor calculates the channel measurement value on the NR DSS bandwidth based on the first sub-band quantity, the second sub-band quantity, and the sub-band CSI, it is specifically used for:

[0053] Based on the number of the first sub-band and the number of the second sub-band, calculate the first proportion of the number of the second sub-band in the number of the first sub-band;

[0054] Based on the subband CSI and the first ratio, calculate the channel measurement value on the NR DSS bandwidth.

[0055] Optionally, the subband CSI includes: a first average channel quality indicator (CQI) over the LTE bandwidth and a subband CQI offset value for each subband CQI relative to the first average CQI.

[0056] Optionally, when the processor calculates the channel measurement value on the NR DSS bandwidth based on the subband CSI and the first ratio, it is specifically used for:

[0057] Calculate the second average CQI on the NR DSS bandwidth based on the first average CQI and the first ratio;

[0058] Based on the second average CQI, the downlink channel measurement value on the NR DSS bandwidth is obtained.

[0059] Optionally, when the processor executes the process of obtaining downlink channel measurements on the NR DSS bandwidth based on the second average CQI, it is specifically used for:

[0060] Based on the first ratio and the subband CQI offset value of the i-th subband on the LTE bandwidth, calculate the subband CQI offset value of the i-th subband on the NR DSS bandwidth;

[0061] The CQI of the i-th sub-band on the NR DSS bandwidth is calculated based on the second average CQI and the sub-band CQI offset value of the i-th sub-band on the NR DSS bandwidth.

[0062] Based on the CQI of the i-th subband on the NR DSS bandwidth, obtain the downlink channel measurement value on the NR DSS bandwidth;

[0063] Where i is a positive integer less than or equal to the number of the second sub-band.

[0064] Optionally, before the processor performs the transmission of periodic channel state information reference signal CSI-RS on the NR DSS bandwidth, the processor is further configured to:

[0065] The periodic CSI-RS configured to be transmitted over the NR DSS bandwidth.

[0066] Optionally, before the processor executes the non-periodic subband channel state information (CSI) reported by the receiving terminal based on the CSI-RS, the processor is further configured to:

[0067] Configure the terminal to non-periodic subband CSI reporting mode.

[0068] Optionally, after configuring the terminal to a non-periodic subband CSI reporting mode, the processor is further configured to:

[0069] Downlink control information (DCI) is sent to the terminal, and the DCI is used to trigger the terminal's aperiodic subband CSI reporting mode.

[0070] Thirdly, embodiments of the present invention also provide a channel measurement device, comprising:

[0071] The determination module is used to determine the New Radio Dynamic Spectrum Sharing (NR DSS) bandwidth on the Long Term Evolution (LTE) bandwidth;

[0072] The transmitting module is used to transmit periodic channel state information reference signals (CSI-RS) over the NR DSS bandwidth.

[0073] The receiving module is used to receive the non-periodic subband channel status information (CSI) reported by the terminal according to the CSI-RS;

[0074] The calculation module is used to calculate the channel measurement value on the NR DSS bandwidth based on the NR DSS bandwidth and the subband CSI.

[0075] Fourthly, embodiments of the present invention also provide a processor-readable storage medium storing a computer program for causing the processor to execute the above-described channel measurement method.

[0076] In this embodiment of the invention, by determining the New Radio Dynamic Spectrum Sharing (NR DSS) bandwidth on the LTE bandwidth, a periodic Channel State Information Reference Signal (CSI-RS) is transmitted on the NR DSS bandwidth. The receiving terminal calculates the channel measurement values ​​on the NR DSS bandwidth based on the aperiodic subband Channel State Information (CSI) reported by the CSI-RS, the NR DSS bandwidth, and the subband CSI, according to the NR DSS bandwidth and the subband CSI. This channel measurement method, combining periodic CSI-RS and aperiodic subband CSI, can accurately and efficiently calculate the NR channel measurement information on the LTE shared bandwidth without negatively impacting 4G services, significantly enhancing the technical superiority of 4G and 5G dynamic spectrum sharing schemes. Attached Figure Description

[0077] To more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the description of the embodiments of the present invention will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0078] Figure 1 A flowchart illustrating the steps of the channel measurement method provided in this embodiment of the invention;

[0079] Figure 2 A schematic diagram illustrating the NR DSS bandwidth range provided in an embodiment of the present invention;

[0080] Figure 3 This is a structural block diagram of the channel measurement device provided in an embodiment of the present invention;

[0081] Figure 4 This is a structural block diagram of a network device provided in an embodiment of the present invention. Detailed Implementation

[0082] In this embodiment of the invention, the term "and / or" describes the relationship between associated objects, indicating that three relationships can exist. For example, A and / or B can represent: A existing alone, A and B existing simultaneously, or B existing alone. The character " / " generally indicates that the preceding and following associated objects have an "or" relationship.

[0083] In the embodiments of this application, the term "multiple" refers to two or more, and other quantifiers are similar.

[0084] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this application, and not all of the embodiments. Based on the embodiments of this application, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of this application.

[0085] In existing technologies, in order not to affect the normal operation of 4G services, NR configures physical channels such as the Synchronization Signal and PBCH block (SSB), Physical Downlink Control Channel (PDCCH), System Information Block (SIB), and CSI-RS within the Radio Bearer (RB) range of the actual bandwidth used by NR. Only when there is service scheduling may the Physical Downlink Shared Channel (PDSCH) use RB resources on the LTE bandwidth. As a result, NR User Equipment (UE) cannot directly perform channel measurements on the LTE bandwidth.

[0086] Therefore, this application provides a channel measurement method, apparatus, and network device that can not only calculate the channel measurement information of NR on the LTE shared bandwidth, but also does not have a negative impact on 4G services, greatly improving the technical superiority of the 4G and 5G dynamic spectrum sharing scheme.

[0087] The method and apparatus are based on the same concept of the application. Since the methods and apparatus solve problems in similar ways, the implementation of the apparatus and methods can refer to each other, and the repeated parts will not be described again.

[0088] The network device involved in this application embodiment can be a base station, which may include multiple cells providing services to terminals. Depending on the specific application, a base station may also be called an access point, or a device in an access network that communicates with a wireless terminal via one or more sectors on the air interface, or other names. The network device can be used to exchange received air frames with Internet Protocol (IP) packets, acting as a router between the wireless terminal and the rest of the access network, where the rest of the access network may include an Internet Protocol (IP) communication network. The network device can also coordinate the attribute management of the air interface. For example, the network equipment involved in the embodiments of this application can be a base transceiver station (BTS) in a Global System for Mobile communications (GSM) or Code Division Multiple Access (CDMA), a NodeB in a Wide-band Code Division Multiple Access (WCDMA) system, an evolved Node B (eNB or e-NodeB) in a long term evolution (LTE) system, a 5G base station (gNB) in a next generation system, a Home evolved Node B (HeNB), a relay node, a femto, a pico, etc., and is not limited in the embodiments of this application. In some network structures, the network equipment may include centralized unit (CU) nodes and distributed unit (DU) nodes, and the centralized unit and distributed unit may also be geographically separated.

[0089] Specifically, such as Figure 1 As shown, this embodiment of the invention provides a channel measurement method that can be applied to network devices. Specifically, the method may include:

[0090] Step 101: Determine the new air interface dynamic spectrum sharing (NR DSS) bandwidth on the LTE bandwidth.

[0091] Specifically, network equipment determines the NR DSS bandwidth range within the LTE bandwidth range, and this NR DSS bandwidth range is dynamically adjusted according to the DSS.

[0092] For example: Figure 2 As shown, LTE exclusively occupies 20MHz of bandwidth, meaning the total LTE bandwidth is 20MHz; the NR carrier is configured with 40MHz, meaning the total NR bandwidth is 40MHz; NR and LTE share 10MHz of spectrum, meaning the dynamic spectrum sharing bandwidth of the NR is 10MHz. Therefore, the actual bandwidth used by LTE is 10MHz. The base station flexibly adjusts the NR UE's schedulable RB range according to service requirements, reasonably sharing and occupying the LTE 20MHz bandwidth resource.

[0093] Among them, the actual bandwidth used by the new air interface, i.e., the dedicated spectrum for 5G, Figure 2 The value in the middle is a fixed 20M;

[0094] The new radio interface dynamic spectrum sharing bandwidth, i.e. the RB range shared by 5G on 4G bandwidth, can be dynamically adjusted according to DSS;

[0095] The actual bandwidth used in Long Term Evolution (LTE), i.e. the range of RBs on 4G bandwidth that are not shared by 5G, can be dynamically adjusted according to DSS.

[0096] Long Term Evolution (LTE) full bandwidth, i.e., the deployment bandwidth of 4G base stations. Figure 2 The value in the middle is a fixed 20M;

[0097] New Radio full bandwidth, i.e., the deployment bandwidth of 5G base stations. Figure 2 The value in the middle is a fixed 40M.

[0098] The LTE full bandwidth includes: the LTE actual usage bandwidth and the New Radio dynamic spectrum sharing bandwidth. Figure 2 The network is separated by dashed lines. Network devices need to determine the position of the dashed lines, which means determining the actual bandwidth used in LTE and the dynamic spectrum sharing bandwidth of NR.

[0099] Step 102: Transmit a periodic channel state information reference signal (CSI-RS) over the NR DSS bandwidth.

[0100] Specifically, in LTE bandwidth, network devices only transmit periodic Channel State Information Reference Signals (CSI-RS) on the NR DSS bandwidth, and not on the actual LTE bandwidth used. Whether or not the CSI-RS is transmitted is dynamically adjusted by the network device based on DSS synchronization; that is, if the NR DSS bandwidth is adjusted and updated, the bandwidth range for transmitting CSI-RS also needs to be adjusted synchronously.

[0101] Step 103: The receiving terminal receives the aperiodic subband channel status information (CSI) reported by the CSI-RS.

[0102] Specifically, when the terminal receives the periodic CSI-RS, it obtains the non-periodic sub-band Channel State Information (CSI) based on the periodic CSI-RS and sends the sub-band CSI to the network device, which then receives the sub-band CSI.

[0103] Step 104: Calculate the channel measurement value on the NR DSS bandwidth based on the NR DSS bandwidth and the subband CSI.

[0104] Specifically, after obtaining the subband CSI, the channel measurement value on the NR DSS bandwidth can be obtained by calculating the NR DSS bandwidth and the subband CSI. That is, the channel measurement value on the NR DSS bandwidth is obtained by filtering and converting all the subband CSIs reported by the terminal based on the NR DSS bandwidth.

[0105] In the above embodiments of the present invention, by determining the New Radio Dynamic Spectrum Sharing (NRDSS) bandwidth on the LTE bandwidth, a periodic Channel State Information Reference Signal (CSI-RS) is transmitted on the NR DSS bandwidth. The receiving terminal calculates the channel measurement values ​​on the NR DSS bandwidth based on the aperiodic subband Channel State Information (CSI) reported by the CSI-RS, the NR DSS bandwidth, and the subband CSI. This channel measurement method, combining periodic CSI-RS and aperiodic subband CSI, can accurately and efficiently calculate the channel measurement information of NR on the LTE shared bandwidth without negatively impacting 4G services, greatly enhancing the technical superiority of 4G and 5G dynamic spectrum sharing schemes.

[0106] As an optional embodiment, before step 104 calculates the channel measurement value on the NR DSS bandwidth based on the NR DSS bandwidth and the subband CSI, the method further includes:

[0107] Obtain the number of the first sub-bands within the LTE bandwidth;

[0108] Step 104, which obtains the channel measurement value on the NR DSS bandwidth based on the NR DSS bandwidth and the subband CSI, includes the following steps A1 and A2:

[0109] Step A1: Calculate the number of second subbands within the NRDSS bandwidth based on the NR DSS bandwidth, the LTE bandwidth, and the number of the first subbands.

[0110] Specifically, network devices obtain the number of subbands within the LTE bandwidth, i.e., the number of first subbands; then, using the NRDSS bandwidth, LTE bandwidth, and the number of first subbands, the number of subbands within the NR DSS bandwidth, i.e., the number of second subbands, can be obtained. The number of second subbands within the NR DSS bandwidth can be determined by the proportion of the NR DSS bandwidth to the LTE bandwidth.

[0111] For example: if the NR DSS bandwidth is 10M and the LTE bandwidth is 20M, the NR DSS bandwidth accounts for 50% of the LTE bandwidth; if the number of the first subband is 10, then the number of the second subband is 50% of 10, that is, the number of the second subband is 5.

[0112] It should be noted that the number of the first subband is n, and the value of n is in the range of 3≤n≤19. Since the protocol stipulates that the minimum number of subbands is 3 and the maximum number is 19, it can be set adaptively within the range specified by the protocol, and no specific limit is made here.

[0113] Step A2: Calculate the channel measurement value on the NR DSS bandwidth based on the number of the first sub-band, the number of the second sub-band, and the sub-band CSI.

[0114] Specifically, after obtaining the number of the second subband, the channel measurement value on the NR DSS bandwidth can be obtained by calculating the number of the first subband, the number of the second subband, and the subband CSI. That is, based on the number of the first subband and the number of the second subband, all the subband CSIs reported by the terminal are filtered and recalculated to obtain the channel measurement value on the NR DSS bandwidth.

[0115] As an optional embodiment, step A1 calculates the number of second sub-bands within the NR DSS bandwidth based on the NR DSS bandwidth, the LTE bandwidth, and the number of the first sub-bands, specifically including:

[0116] Based on the NR DSS bandwidth, obtain the number of first radio bearers (RBs) within the NR DSS bandwidth;

[0117] Based on the LTE bandwidth, obtain the number of second RBs within the LTE bandwidth;

[0118] The number of second subbands within the NR DSS bandwidth is calculated based on the number of the first RB, the number of the second RB, and the number of the first subband.

[0119] Specifically, the network device obtains the number of Radio Bearer (RB) units within the NR DSS bandwidth range, i.e., the number of first radio bearer (RBs); and obtains the number of RBs within the LTE bandwidth range, i.e., the number of second RBs, based on the LTE bandwidth. The number of second subbands within the NR DSS bandwidth can be calculated using the number of first RBs, the number of second RBs, and the number of first subbands. Specifically, the number of second subbands within the NR DSS bandwidth can be determined by the proportion of the second RBs to the number of first RBs, and by using the number of first subbands.

[0120] Specifically, the calculation can be performed in the following ways:

[0121] k = floor(number of second RBs / number of first RBs * n)

[0122] Where k represents the number of second subbands within the NR DSS bandwidth;

[0123] floor indicates the floor function;

[0124] n represents the number of the first sub-band.

[0125] It should be noted that the above formula is only an example of a calculation method and is not intended to limit the scope of the calculation.

[0126] As an optional embodiment, step A2 calculates the channel measurement value on the NR DSS bandwidth based on the number of the first sub-band, the number of the second sub-band, and the sub-band CSI, specifically including:

[0127] Step B1: Calculate the first proportion of the second sub-band quantity in the first sub-band quantity based on the first sub-band quantity and the second sub-band quantity.

[0128] Specifically, the network device calculates the proportion of the second subband in the total number of subbands based on the number of the first subband and the number of the second subband, which is called the first proportion; in other words, the first proportion is the ratio of the number of the second subband to the number of the first subband.

[0129] Step B2: Calculate the channel measurement value on the NR DSS bandwidth based on the subband CSI and the first ratio.

[0130] Specifically, the network equipment filters and calculates all sub-band CSIs using a first ratio to obtain the channel measurement value on the NR DSS bandwidth.

[0131] As an optional embodiment, the subband CSI may include: a first average channel quality indicator (CQI) over the LTE bandwidth and a subband CQI offset value for each subband CQI relative to the first average CQI.

[0132] Specifically, based on the acquired CSI-RS, the terminal calculates the first average Channel Quality Indicator (CQI) on the LTE bandwidth and the sub-band CQI offset value for each sub-band, and sends the first average CQI and the sub-band CQI offset value for each sub-band to the network device. Thus, the network device obtains the first average CQI on the LTE bandwidth and the sub-band CQI offset value for each sub-band. The sub-band CQI offset value refers to the offset based on the first average CQI.

[0133] As an optional embodiment, step B2 calculates the channel measurement value on the NR DSS bandwidth based on the sub-band CSI and the first ratio, specifically including steps C1 and C2:

[0134] Step C1: Calculate the second average CQI on the NR DSS bandwidth based on the first average CQI and the first ratio.

[0135] Specifically, the network device can calculate the second average CQI on the NR DSS bandwidth based on the first average CQI and the first ratio. This can be calculated in the following way:

[0136] CQI_2 = round(CQI_1 * n / k)

[0137] Where k represents the number of second subbands within the NR DSS bandwidth;

[0138] n represents the number of the first sub-band;

[0139] n / k represents the reciprocal of the first proportion;

[0140] round indicates rounding operation;

[0141] CQI_1 represents the first average CQI;

[0142] CQI_2 represents the second average CQI.

[0143] It should be noted that the above formula is only an example of a calculation method and is not intended to limit the scope of the calculation.

[0144] Step C2: Obtain downlink channel measurements on the NR DSS bandwidth based on the second average CQI.

[0145] Specifically, based on the second average CQI, the network device completes the downlink channel measurement on the NR DSS bandwidth. That is, based on the second average CQI calculated above, the downlink channel measurement value on the NR DSS bandwidth can be obtained.

[0146] As an optional embodiment, step C2, based on the second average CQI, obtains the downlink channel measurement value on the NR DSS bandwidth, specifically including steps D1, D2, and D3:

[0147] Step D1: Calculate the subband CQI offset value of the i-th subband on the NR DSS bandwidth based on the first ratio and the subband CQI offset value of the i-th subband on the LTE bandwidth. Here, i is a positive integer less than or equal to the number of the second subbands.

[0148] Specifically, the network device can calculate the subband CQI offset value of the i-th subband in the NR DSS bandwidth by using the first ratio and the subband CQI offset value of the i-th subband in the LTE bandwidth. In other words, the network device can calculate the subband CQI offset value of one subband in the NR DSS bandwidth using the subband CQI offset value of one subband in the LTE bandwidth and the first ratio. This can be calculated in the following way:

[0149] The subband CQI offset of the i-th subband on the NR DSS bandwidth = CQI_offset_i*n / k

[0150] Wherein, CQI_offset_i represents the subband CQI offset value of the i-th subband in the LTE bandwidth;

[0151] k represents the number of second subbands within the NR DSS bandwidth;

[0152] n represents the number of the first sub-band;

[0153] n / k represents the reciprocal of the first proportion.

[0154] Step D2: Calculate the CQI of the i-th sub-band on the NR DSS bandwidth based on the second average CQI and the sub-band CQI offset value of the i-th sub-band on the NR DSS bandwidth.

[0155] Specifically, the network device can calculate the CQI of the i-th subband on the NR DSS bandwidth using the second average CQI and the subband CQI offset value of the i-th subband on the NR DSS bandwidth; that is, the network device can calculate the CQI of one subband on the NR DSS bandwidth using the subband CQI offset value of one subband on the NR DSS bandwidth and the first ratio. This can be calculated in the following way:

[0156] CQI_subband_i=round[(CQI_1+CQI_offset_i)*n / k];

[0157] Where k represents the number of second subbands within the NR DSS bandwidth;

[0158] n represents the number of the first sub-band;

[0159] n / k represents the reciprocal of the first proportion;

[0160] round indicates rounding operation;

[0161] CQI_1 represents the first average CQI;

[0162] CQI_subband_i represents the CQI of the i-th subband on the NR DSS bandwidth.

[0163] Step D3: Obtain the downlink channel measurement value on the NR DSS bandwidth based on the CQI of the i-th subband on the NR DSS bandwidth.

[0164] Specifically, based on the CQI of the i-th sub-band and the number of the second sub-band on the NR DSS bandwidth, the network device completes the downlink channel measurement on the NR DSS bandwidth. That is, based on the CQI of the i-th sub-band and the number of the second sub-band on the NR DSS bandwidth, the downlink channel measurement value on the NR DSS bandwidth can be obtained.

[0165] As an optional embodiment, before step 102 transmits the periodic channel state information reference signal CSI-RS on the NR DSS bandwidth, the method further includes:

[0166] The periodic CSI-RS configured to be transmitted over the NR DSS bandwidth.

[0167] Specifically, network devices configure periodic CSI-RS on the LTE bandwidth, and this periodic CSI-RS is transmitted on the NR DSS bandwidth. After the network devices configure periodic CSI-RS, they transmit periodic CSI-RS on the NR DSS bandwidth.

[0168] As an optional embodiment, before step 103, when the receiving terminal receives the aperiodic subband channel state information (CSI) reported by the CSI-RS, the method further includes:

[0169] Configure the terminal to non-periodic subband CSI reporting mode.

[0170] Specifically, network devices are configured to report non-periodic subband CSI on LTE bandwidth, that is, the terminal is configured to report non-periodic subband CSI, meaning that after receiving periodic CSI-RS, the terminal sends the corresponding subband CSI.

[0171] As an optional embodiment, after configuring the terminal to the non-periodic subband CSI reporting mode as described above, the method further includes:

[0172] Downlink control information (DCI) is sent to the terminal, and the DCI is used to trigger the terminal's aperiodic subband CSI reporting mode.

[0173] Specifically, the network device sends Downlink Control Information (DCI) to the terminal, which then initiates the terminal to report aperiodic subband CSI. In other words, if the network device is configured with an aperiodic subband CSI reporting mode, then if the terminal initiates this aperiodic subband CSI reporting mode after receiving the DCI, and if it receives a periodic CSI-RS after the reporting mode is activated, the terminal will send the corresponding aperiodic subband CSI based on the periodic CSI-RS.

[0174] Furthermore, within the RB range of the actual bandwidth used by the NR, the network device configures periodic CSI-RS and corresponding periodic CSI measurements to obtain channel measurement information on the actual bandwidth used by the NR.

[0175] In summary, this embodiment of the invention obtains channel measurement information of the terminal on the LTE bandwidth by determining the NR DSS bandwidth on the LTE bandwidth, configuring periodic CSI-RS transmission on that NR DSS bandwidth, and configuring and triggering aperiodic subband CSI measurement reporting. Furthermore, it converts the channel measurement information on the LTE bandwidth to the NR DSS bandwidth, providing a basis for network equipment to schedule downlink for the NR terminal. Moreover, the channel measurement method based on the combination of periodic CSI-RS and aperiodic subband CSI can accurately and efficiently calculate the NR channel measurement information on the LTE shared bandwidth without negatively impacting 4G services, greatly enhancing the technical superiority of 4G and 5G dynamic spectrum sharing schemes.

[0176] The channel measurement method provided by the embodiments of the present invention has been described above. The channel measurement device provided by the embodiments of the present invention will be described below with reference to the accompanying drawings.

[0177] like Figure 3 As shown, this embodiment of the invention also provides a channel measurement device 300, comprising:

[0178] Module 301 is used to determine the New Radio Dynamic Spectrum Sharing (NR DSS) bandwidth on the Long Term Evolution (LTE) bandwidth;

[0179] The first transmitting module 302 is used to transmit a periodic channel state information reference signal (CSI-RS) over the NR DSS bandwidth.

[0180] The receiving module 303 is used to receive the aperiodic subband channel status information (CSI) reported by the terminal according to the CSI-RS;

[0181] The calculation module 304 is used to calculate the channel measurement value on the NR DSS bandwidth based on the NR DSS bandwidth and the subband CSI.

[0182] Optionally, the device further includes:

[0183] The acquisition module is used to acquire the number of first sub-bands within the LTE bandwidth;

[0184] The calculation module 304 includes:

[0185] The first calculation unit is used to calculate the number of second sub-bands within the NR DSS bandwidth based on the NR DSS bandwidth, the LTE bandwidth, and the number of the first sub-bands;

[0186] The second calculation unit is used to calculate the channel measurement value on the NR DSS bandwidth based on the number of the first sub-band, the number of the second sub-band, and the sub-band CSI.

[0187] Optionally, the first computing unit includes:

[0188] The first acquisition subunit is used to acquire the number of first radio bearers (RBs) within the NR DSS bandwidth based on the NR DSS bandwidth.

[0189] The second acquisition subunit is used to acquire the number of second RBs within the LTE bandwidth based on the LTE bandwidth.

[0190] The first calculation subunit is used to calculate the number of second subbands within the NR DSS bandwidth based on the number of the first RB, the number of the second RB, and the number of the first subband.

[0191] Optionally, the second computing unit includes:

[0192] The second calculation subunit is used to calculate, based on the first sub-band quantity and the second sub-band quantity, a first proportion of the second sub-band quantity in the first sub-band quantity;

[0193] The third calculation subunit is used to calculate the channel measurement value on the NR DSS bandwidth based on the subband CSI and the first ratio.

[0194] Optionally, the subband CSI includes: a first average channel quality indicator (CQI) over the LTE bandwidth and a subband CQI offset value for each subband CQI relative to the first average CQI.

[0195] Optionally, the third computing subunit includes:

[0196] Calculate the second average CQI on the NR DSS bandwidth based on the first average CQI and the first ratio;

[0197] Based on the second average CQI, the downlink channel measurement value on the NR DSS bandwidth is obtained.

[0198] Optionally, obtaining the downlink channel measurement value on the NR DSS bandwidth based on the second average CQI includes:

[0199] Based on the first ratio and the subband CQI offset value of the i-th subband on the LTE bandwidth, calculate the subband CQI offset value of the i-th subband on the NR DSS bandwidth;

[0200] The CQI of the i-th sub-band on the NR DSS bandwidth is calculated based on the second average CQI and the sub-band CQI offset value of the i-th sub-band on the NR DSS bandwidth.

[0201] Based on the CQI of the i-th subband on the NR DSS bandwidth, obtain the downlink channel measurement value on the NR DSS bandwidth;

[0202] Where i is a positive integer less than or equal to the number of the second sub-band.

[0203] Optionally, the device further includes:

[0204] The first configuration module is used to configure the periodic CSI-RS transmitted on the NR DSS bandwidth.

[0205] Optionally, the device further includes:

[0206] The second configuration module is used to configure the terminal to a non-periodic subband CSI reporting mode.

[0207] Optionally, the device further includes:

[0208] The second sending module is used to send downlink control information (DCI) to the terminal, and the DCI is used to trigger the terminal's aperiodic subband CSI reporting mode.

[0209] It should be noted that the division of units in the embodiments of this application is illustrative and only represents one logical functional division. In actual implementation, other division methods may be used. Furthermore, the functional units in the various embodiments of this application can be integrated into one processing unit, or each unit can exist physically separately, or two or more units can be integrated into one unit. The integrated units described above can be implemented in hardware or as software functional units.

[0210] If the integrated unit is implemented as a software functional unit and sold or used as an independent product, it can be stored in a processor-readable storage medium. Based on this understanding, the technical solution of this application, in essence, or the part that contributes to the prior art, or all or part of the technical solution, can be embodied in the form of a software product. This computer software product is stored in a storage medium and includes several instructions to cause a computer device (which may be a personal computer, server, or network device, etc.) or processor to execute all or part of the steps of the methods described in the various embodiments of this application. The aforementioned storage medium includes various media capable of storing program code, such as USB flash drives, portable hard drives, read-only memory (ROM), random access memory (RAM), magnetic disks, or optical disks.

[0211] In summary, this embodiment of the invention obtains channel measurement information of the terminal on the LTE bandwidth by determining the NR DSS bandwidth on the LTE bandwidth, configuring periodic CSI-RS transmission on that NR DSS bandwidth, and configuring and triggering aperiodic subband CSI measurement reporting. Furthermore, it converts the channel measurement information on the LTE bandwidth to the NR DSS bandwidth, providing a basis for network equipment to schedule downlink for the NR terminal. Moreover, the channel measurement method based on the combination of periodic CSI-RS and aperiodic subband CSI can accurately and efficiently calculate the NR channel measurement information on the LTE shared bandwidth without negatively impacting 4G services, greatly enhancing the technical superiority of 4G and 5G dynamic spectrum sharing schemes.

[0212] It should be noted that the apparatus provided in this embodiment of the invention can implement all the method steps implemented in the above method embodiment and can achieve the same technical effect. Therefore, the parts and beneficial effects that are the same as those in the method embodiment will not be described in detail here.

[0213] like Figure 4 As shown, embodiments of the present invention also provide a network device, including a memory 420, a transceiver 410, and a processor 400:

[0214] Memory 420 is used to store computer programs;

[0215] Transceiver 410 is used to send and receive data under the control of the processor;

[0216] Processor 400 is used to read computer programs from memory and perform the following operations:

[0217] Determine the new radio dynamic spectrum sharing (NR DSS) bandwidth on the LTE bandwidth;

[0218] Periodic channel state information reference signal CSI-RS is transmitted over the NR DSS bandwidth;

[0219] The receiving terminal receives the aperiodic subband channel status information (CSI) reported by the CSI-RS.

[0220] Calculate the channel measurement value on the NR DSS bandwidth based on the NR DSS bandwidth and the subband CSI.

[0221] Optionally, before the processor 400 performs the calculation of channel measurements on the NRDSS bandwidth based on the NR DSS bandwidth and the subband CSI, the processor 400 is further configured to:

[0222] Obtain the number of the first sub-bands within the LTE bandwidth;

[0223] Specifically, when the processor 400 executes the process of obtaining channel measurement values ​​on the NR DSS bandwidth based on the NR DSS bandwidth and the subband CSI, it is used for:

[0224] The number of second subbands within the NR DSS bandwidth is calculated based on the NR DSS bandwidth, the LTE bandwidth, and the number of the first subbands.

[0225] Based on the number of the first sub-band, the number of the second sub-band, and the sub-band CSI, calculate the channel measurement value on the NR DSS bandwidth.

[0226] Optionally, when the processor 400 calculates the number of second subbands within the NR DSS bandwidth based on the NR DSS bandwidth, the LTE bandwidth, and the number of the first subbands, it specifically performs the following:

[0227] Based on the NR DSS bandwidth, obtain the number of first radio bearers (RBs) within the NR DSS bandwidth;

[0228] Based on the LTE bandwidth, obtain the number of second RBs within the LTE bandwidth;

[0229] The number of second subbands within the NR DSS bandwidth is calculated based on the number of the first RB, the number of the second RB, and the number of the first subband.

[0230] Optionally, when the processor 400 calculates the channel measurement value on the NR DSS bandwidth based on the first sub-band quantity, the second sub-band quantity, and the sub-band CSI, it is specifically used for:

[0231] Based on the number of the first sub-band and the number of the second sub-band, calculate the first proportion of the number of the second sub-band in the number of the first sub-band;

[0232] Based on the subband CSI and the first ratio, calculate the channel measurement value on the NR DSS bandwidth.

[0233] Optionally, the subband CSI includes: a first average channel quality indicator (CQI) over the LTE bandwidth and a subband CQI offset value for each subband CQI relative to the first average CQI.

[0234] Optionally, when the processor 400 calculates the channel measurement value on the NRDSS bandwidth based on the subband CSI and the first ratio, it is specifically used for:

[0235] Calculate the second average CQI on the NR DSS bandwidth based on the first average CQI and the first ratio;

[0236] Based on the second average CQI, the downlink channel measurement value on the NR DSS bandwidth is obtained.

[0237] Optionally, when the processor 400 executes the process of obtaining downlink channel measurements on the NR DSS bandwidth based on the second average CQI, it is specifically used for:

[0238] Based on the first ratio and the subband CQI offset value of the i-th subband on the LTE bandwidth, calculate the subband CQI offset value of the i-th subband on the NR DSS bandwidth;

[0239] The CQI of the i-th sub-band on the NR DSS bandwidth is calculated based on the second average CQI and the sub-band CQI offset value of the i-th sub-band on the NR DSS bandwidth.

[0240] Based on the CQI of the i-th subband on the NR DSS bandwidth, obtain the downlink channel measurement value on the NR DSS bandwidth;

[0241] Where i is a positive integer less than or equal to the number of the second sub-band.

[0242] Optionally, before the processor 400 executes the transmission of periodic channel state information reference signal CSI-RS on the NR DSS bandwidth, the processor 400 is further configured to:

[0243] The periodic CSI-RS configured to be transmitted over the NR DSS bandwidth.

[0244] Optionally, before the processor 400 executes the non-periodic subband channel state information (CSI) reported by the receiving terminal according to the CSI-RS, the processor 400 is further configured to:

[0245] Configure the terminal to non-periodic subband CSI reporting mode.

[0246] Optionally, after configuring the terminal to a non-periodic subband CSI reporting mode, the processor 400 is further configured to:

[0247] Downlink control information (DCI) is sent to the terminal, and the DCI is used to trigger the terminal's aperiodic subband CSI reporting mode.

[0248] Among them, Figure 4 In this context, the bus architecture can include any number of interconnected buses and bridges, specifically linking various circuits together, represented by one or more processors (processor 400) and memory (memory 420). The bus architecture can also link various other circuits such as peripheral devices, voltage regulators, and power management circuits, which are well known in the art and therefore will not be described further herein. The bus interface provides an interface. The transceiver 410 can be multiple elements, including transmitters and receivers, providing a unit for communicating with various other devices over transmission media, including wireless channels, wired channels, optical fibers, etc. The processor 400 is responsible for managing the bus architecture and general processing, and the memory 420 can store data used by the processor 400 during operation.

[0249] The processor 400 can be a central processing unit (CPU), an application-specific integrated circuit (ASIC), a field-programmable gate array (FPGA), or a complex programmable logic device (CPLD). The processor can also adopt a multi-core architecture.

[0250] The processor executes any of the channel measurement methods provided in the embodiments of this application according to the obtained executable instructions by calling a computer program stored in memory. The processor and memory can also be physically separated.

[0251] It should be noted that the network device provided in this embodiment of the invention can implement all the method steps implemented in the above channel measurement method embodiment and can achieve the same technical effect. Therefore, the parts and beneficial effects that are the same as those in the method embodiment will not be described in detail here.

[0252] Embodiments of the present invention also provide a processor-readable storage medium storing a computer program for causing the processor to execute the above-described channel measurement method.

[0253] The processor-readable storage medium can be any available medium or data storage device that the processor can access, including but not limited to magnetic memory (e.g., floppy disk, hard disk, magnetic tape, magneto-optical disk (MO)), optical memory (e.g., CD, DVD, BD, HVD), and semiconductor memory (e.g., ROM, EPROM, EEPROM, non-volatile memory (NAND FLASH), solid-state drive (SSD)).

[0254] Those skilled in the art will understand that embodiments of this application can be provided as methods, systems, or computer program products. Therefore, this application can take the form of a completely hardware embodiment, a completely software embodiment, or an embodiment combining software and hardware aspects. Furthermore, this application can take the form of a computer program product implemented on one or more computer-usable storage media (including, but not limited to, disk storage and optical storage) containing computer-usable program code.

[0255] This application is described with reference to flowchart illustrations and / or block diagrams of methods, apparatus (systems), and computer program products according to embodiments of this application. It will be understood that each block of the flowchart illustrations and / or block diagrams, and combinations of blocks in the flowchart illustrations and / or block diagrams, can be implemented by computer-executable instructions. These computer-executable instructions can be provided to a processor of a general-purpose computer, special-purpose computer, embedded processor, or other programmable data processing apparatus to produce a machine, such that the instructions, which execute via the processor of the computer or other programmable data processing apparatus, generate instructions for implementing the flowchart... Figure 1 One or more processes and / or boxes Figure 1 A device that provides the functions specified in one or more boxes.

[0256] These processor-executable instructions may also be stored in a processor-readable memory that can direct a computer or other programmable data processing device to operate in a particular manner, such that the instructions stored in the processor-readable memory produce an article of manufacture including instruction means, which are implemented in a process Figure 1 One or more processes and / or boxes Figure 1 The function specified in one or more boxes.

[0257] These processors can execute instructions that can also be loaded onto a computer or other programmable data processing device, causing a series of operational steps to be performed on the computer or other programmable device to produce a computer-implemented process, thereby providing instructions that execute on the computer or other programmable device for implementing the process. Figure 1 One or more processes and / or boxes Figure 1 The steps of the function specified in one or more boxes.

[0258] Obviously, those skilled in the art can make various modifications and variations to this application without departing from the spirit and scope of this application. Therefore, if such modifications and variations fall within the scope of the claims of this application and their equivalents, this application also intends to include such modifications and variations.

Claims

1. A channel measurement method, characterized in that, The method includes: Determine the new radio dynamic spectrum sharing (NR DSS) bandwidth on the LTE bandwidth; Periodic channel state information reference signal CSI-RS is transmitted over the NR DSS bandwidth; The receiving terminal receives aperiodic subband channel state information (CSI) reported by the CSI-RS; the subband CSI includes: a first average channel quality indicator (CQI) over the LTE bandwidth and a subband CQI offset value for each subband CQI relative to the first average CQI. Based on the NR DSS bandwidth and the subband CSI, calculate the channel measurement value on the NR DSS bandwidth, including: filtering and recalculating all subband CSIs reported by the terminal based on the NR DSS bandwidth.

2. The method according to claim 1, characterized in that, Before calculating the channel measurement value on the NR DSS bandwidth based on the NR DSS bandwidth and the subband CSI, the method further includes: Obtain the number of the first sub-bands within the LTE bandwidth; The step of obtaining channel measurement values ​​on the NR DSS bandwidth based on the NR DSS bandwidth and the subband CSI includes: The number of second subbands within the NR DSS bandwidth is calculated based on the NR DSS bandwidth, the LTE bandwidth, and the number of the first subbands. Based on the number of the first sub-band, the number of the second sub-band, and the sub-band CSI, calculate the channel measurement value on the NR DSS bandwidth.

3. The method according to claim 2, characterized in that, The step of calculating the number of second subbands within the NR DSS bandwidth based on the NR DSS bandwidth, the LTE bandwidth, and the number of the first subbands includes: Based on the NR DSS bandwidth, obtain the number of first radio bearers (RBs) within the NR DSS bandwidth; Based on the LTE bandwidth, obtain the number of second RBs within the LTE bandwidth; The number of second subbands within the NR DSS bandwidth is calculated based on the number of the first RB, the number of the second RB, and the number of the first subband.

4. The method according to claim 2, characterized in that, The step of calculating the channel measurement value on the NR DSS bandwidth based on the number of the first sub-band, the number of the second sub-band, and the sub-band CSI includes: Based on the number of the first sub-band and the number of the second sub-band, calculate the first proportion of the number of the second sub-band in the number of the first sub-band; Based on the subband CSI and the first ratio, calculate the channel measurement value on the NR DSS bandwidth.

5. The method according to claim 4, characterized in that, The step of calculating the channel measurement value on the NR DSS bandwidth based on the sub-band CSI and the first ratio includes: Calculate the second average CQI on the NR DSS bandwidth based on the first average CQI and the first ratio; Based on the second average CQI, the downlink channel measurement value on the NR DSS bandwidth is obtained.

6. The method according to claim 5, characterized in that, The step of obtaining downlink channel measurements over the NRDSS bandwidth based on the second average CQI includes: Based on the first ratio and the subband CQI offset value of the i-th subband on the LTE bandwidth, calculate the subband CQI offset value of the i-th subband on the NRDSS bandwidth; The CQI of the i-th sub-band on the NR DSS bandwidth is calculated based on the second average CQI and the sub-band CQI offset value of the i-th sub-band on the NR DSS bandwidth. Based on the CQI of the i-th subband on the NR DSS bandwidth, obtain the downlink channel measurement value on the NR DSS bandwidth; Where i is a positive integer less than or equal to the number of the second sub-band.

7. The method according to claim 1, characterized in that, Before transmitting the periodic channel state information reference signal CSI-RS on the NR DSS bandwidth, the method further includes: The periodic CSI-RS configured to be transmitted over the NR DSS bandwidth.

8. The method according to claim 1, characterized in that, Before the receiving terminal reports the aperiodic subband channel state information (CSI) from the CSI-RS, the method further includes: Configure the terminal to non-periodic subband CSI reporting mode.

9. The method according to claim 8, characterized in that, After configuring the terminal to a non-periodic subband CSI reporting mode, the method further includes: Downlink control information (DCI) is sent to the terminal, and the DCI is used to trigger the terminal's aperiodic subband CSI reporting mode.

10. A network device, characterized in that, Includes memory, transceiver, and processor: A memory for storing computer programs; a transceiver for sending and receiving data under the control of the processor; and a processor for reading the computer programs from the memory and performing the following operations: Determine the new radio dynamic spectrum sharing (NR DSS) bandwidth on the LTE bandwidth; Periodic channel state information reference signal CSI-RS is transmitted over the NR DSS bandwidth; The receiving terminal receives aperiodic subband channel state information (CSI) reported by the CSI-RS; the subband CSI includes: a first average channel quality indicator (CQI) over the LTE bandwidth and a subband CQI offset value for each subband CQI relative to the first average CQI. Based on the NR DSS bandwidth and the subband CSI, calculate the channel measurement value on the NR DSS bandwidth, including: filtering and recalculating all subband CSIs reported by the terminal based on the NR DSS bandwidth.

11. The network device according to claim 10, characterized in that, Before the processor performs the calculation of channel measurements on the NR DSS bandwidth based on the NR DSS bandwidth and the subband CSI, the processor is further configured to: Obtain the number of the first sub-bands within the LTE bandwidth; Specifically, when the processor executes the process of obtaining channel measurement values ​​on the NR DSS bandwidth based on the NR DSS bandwidth and the subband CSI, it is used for: The number of second subbands within the NR DSS bandwidth is calculated based on the NR DSS bandwidth, the LTE bandwidth, and the number of the first subbands. Based on the number of the first sub-band, the number of the second sub-band, and the sub-band CSI, calculate the channel measurement value on the NR DSS bandwidth.

12. The network device according to claim 11, characterized in that, When the processor performs the calculation of the number of second subbands within the NR DSS bandwidth based on the NR DSS bandwidth, the LTE bandwidth, and the number of the first subbands, it is specifically used for: Based on the NR DSS bandwidth, obtain the number of first radio bearers (RBs) within the NR DSS bandwidth; Based on the LTE bandwidth, obtain the number of second RBs within the LTE bandwidth; The number of second subbands within the NR DSS bandwidth is calculated based on the number of the first RB, the number of the second RB, and the number of the first subband.

13. The network device according to claim 11, characterized in that, When the processor executes the calculation of channel measurements on the NR DSS bandwidth based on the first sub-band quantity, the second sub-band quantity, and the sub-band CSI, it is specifically used for: Based on the number of the first sub-band and the number of the second sub-band, calculate the first proportion of the number of the second sub-band in the number of the first sub-band; Based on the subband CSI and the first ratio, calculate the channel measurement value on the NR DSS bandwidth.

14. The network device according to claim 13, characterized in that, When the processor executes the calculation of channel measurements on the NR DSS bandwidth based on the subband CSI and the first ratio, it is specifically used for: Calculate the second average CQI on the NR DSS bandwidth based on the first average CQI and the first ratio; Based on the second average CQI, the downlink channel measurement value on the NR DSS bandwidth is obtained.

15. The network device according to claim 14, characterized in that, When the processor executes the process of obtaining downlink channel measurements on the NR DSS bandwidth based on the second average CQI, it is specifically used for: Based on the first ratio and the subband CQI offset value of the i-th subband on the LTE bandwidth, calculate the subband CQI offset value of the i-th subband on the NRDSS bandwidth; The CQI of the i-th sub-band on the NR DSS bandwidth is calculated based on the second average CQI and the sub-band CQI offset value of the i-th sub-band on the NR DSS bandwidth. Based on the CQI of the i-th subband on the NR DSS bandwidth, obtain the downlink channel measurement value on the NR DSS bandwidth; Where i is a positive integer less than or equal to the number of the second sub-band.

16. The network device according to claim 10, characterized in that, Before the processor executes the transmission of periodic channel state information reference signal CSI-RS on the NR DSS bandwidth, the processor is further configured to: The periodic CSI-RS configured to be transmitted over the NR DSS bandwidth.

17. The network device according to claim 10, characterized in that, Before the processor executes the non-periodic subband channel state information (CSI) reported by the receiving terminal based on the CSI-RS, the processor is further configured to: Configure the terminal to non-periodic subband CSI reporting mode.

18. The network device according to claim 17, characterized in that, After configuring the terminal to a non-periodic subband CSI reporting mode, the processor is further configured to: Downlink control information (DCI) is sent to the terminal, and the DCI is used to trigger the terminal's aperiodic subband CSI reporting mode.

19. A channel measurement device, characterized in that, include: The determination module is used to determine the New Radio Dynamic Spectrum Sharing (NR DSS) bandwidth on the Long Term Evolution (LTE) bandwidth; The transmitting module is used to transmit periodic channel state information reference signals (CSI-RS) over the NR DSS bandwidth. The receiving module is used to receive the aperiodic subband channel state information (CSI) reported by the terminal according to the CSI-RS; the subband CSI includes: a first average channel quality indicator (CQI) on the LTE bandwidth and a subband CQI offset value of each subband CQI relative to the first average CQI. The calculation module is used to calculate the channel measurement value on the NR DSS bandwidth based on the NR DSS bandwidth and the sub-band CSI, including: filtering and recalculating all sub-band CSIs reported by the terminal based on the NR DSS bandwidth.

20. A processor-readable storage medium, characterized in that, The processor-readable storage medium stores a computer program for causing the processor to perform the channel measurement method according to any one of claims 1 to 9.

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