A channel measurement method, a cell handover method, related devices and systems

Abstract

An embodiment of the present invention discloses a channel measurement method, including: receiving reference signal resource configuration information of a target cell; where the number of the reference signal resource configuration information of the target cell is greater than 1, and each of the reference signal resource configuration information corresponds to a beam with a different down-tilt angle; based on the reference signal resource configuration information, performing channel measurement on the target cell; and reporting the channel measurement result of the target cell to a serving cell. Correspondingly, the present invention also discloses a cell handover method, related device and system. By using the present invention, the problem in the prior art that the channel quality of beams with different down-tilt angles of a target cell cannot be obtained is solved. The channel measurement results of the target cell under beams with different down-tilt angles measured are reported to the serving cell for cell handover, greatly optimizing the flexibility of cell handover, improving the utilization rate of resources or spectral efficiency, increasing the system capacity, and better realizing the dynamic change of the coverage of each cell.

Description

[0001] This application claims the priority of a Chinese patent application titled "A Channel Measurement Method, a Cell Handover Method, Related Devices and Systems", with the application number 201380033574.2 and filed with the Chinese Patent Office on December 30, 2013. The entire content of which is incorporated herein by reference. Technical Field

[0002] The present invention relates to the field of communications, and particularly to a channel measurement method, a cell handover method, related devices and systems. Background Art

[0003] Multi-input Multi-output (MIMO) technology has been widely applied in wireless communication systems to improve system capacity and ensure cell coverage. For example, in the downlink of the Long Term Evolution (LTE) system, transmit diversity based on multiple antennas, open-loop / closed-loop spatial multiplexing, and multi-stream transmission based on user-level Demodulation Reference Signal (DM-RS) are adopted. Among them, multi-stream transmission based on DM-RS is the main transmission mode of the LTE-A system and subsequent systems. Currently, the antenna configuration and horizontal transmit beam corresponding to multi-stream transmission based on DM-RS are as Figure 1 shown.

[0004] To further improve the performance of multi-antenna systems, two-dimensional planar antenna configurations are being studied, that is, antennas are distributed in both the horizontal and vertical directions simultaneously, so that beamforming can be performed in both the horizontal and vertical directions simultaneously, which is called three-dimensional beamforming. In this way, compared with the current beamforming with only horizontal transmit beams, the degrees of freedom in the vertical direction are increased, so that more users can be multiplexed on the same time-frequency resources. Different users are distinguished by beams in the vertical or horizontal directions, improving resource utilization or spectral efficiency, as Figure 2 shown.

[0005] The two-dimensional antenna configuration is implemented through Active Antenna Systems (AAS). Different from the passive antenna system of traditional base stations, AAS can flexibly provide beams with different down-tilts in the vertical direction, and the base station can adjust the different down-tilts of the beams to achieve different coverages for User Equipment (UE). As Figure 2 shown, UE1 and UE3 in the cell can be covered and served by the beam with down-tilt A, while UE2 and UE4 are covered and served by another beam with a different down-tilt of B.

[0006] In addition, a heterogeneous network with coexisting macro cells and micro cells is an important network deployment in current systems. The base stations in macro cells (macro nodes) and those in micro cells (pico nodes) have different transmission powers, and the transmission power of macro nodes is usually greater than that of pico nodes. A macro cell can contain multiple micro cells, and the macro cell and the micro cells below it can communicate using the same frequency or different frequencies. The main function of macro nodes in the heterogeneous network is to ensure cell coverage, while the main function of pico nodes is to offload the traffic of macro nodes, that is, when the traffic load of a macro node is very heavy, some UEs of the macro node can be switched to pico nodes for service, thereby reducing the load of the macro node, as Figure 3 shown.

[0007] Due to the difference in transmission powers between macro nodes and pico nodes, macro nodes will interfere with the UEs served by pico nodes, especially those UEs located at the boundary between macro nodes and pico nodes and served by pico nodes. In this scenario, the three-dimensional beamforming technology implemented by AAS antennas provides the possibility for traffic load balancing between macro cells and micro cells and inter-cell interference coordination in the spatial domain, that is, by flexibly adjusting the beams with different downtilt angles under macro nodes and pico nodes (i.e., cell free breathing) to achieve dynamic changes in the coverage of each cell, thereby achieving the effects of inter-cell interference coordination and load balancing, as Figure 4 shown. For example, when the traffic load of a macro node is heavy, the macro cell can trigger some UEs (e.g., UEs located at the boundary between macro nodes and pico nodes) to switch to the micro cell for service by the pico node. When switching cells for traffic offloading, the coverage of the cell can be changed by adjusting the downtilt angles of the beams of both macro nodes and pico nodes simultaneously. For example, the pico node can increase the coverage range of the cell by adjusting the downtilt angle of the beam (the outer ring of the micro cell can be referred to in Figure 4 ) so that the UEs previously served by the macro node are within the coverage range of the extended cell of the pico node. At the same time, to reduce the interference of the macro node to the UEs within the coverage range of the pico node, the downtilt angle of the beam of the macro node can be adjusted.

[0008] Generally, in the prior art, a serving cell and a target cell are defined. The serving cell is a cell to which a UE remains connected and conducts normal communication, and the target cell is a cell to which a UE may switch from the serving cell, which may include the serving cell. A UE can have multiple target cells. For example, when a UE served by a macro node needs to switch to a micro cell, the macro cell is the serving cell, and the aforementioned micro cell is the target cell. In the above heterogeneous scenario, when a UE performs cell switching, the UE needs to determine the channel quality of the target cell, that is, it needs to measure the channel quality of the target cell and then report it to its serving cell for switching processing.

[0009] Then, when the UE measures the target cell, how the UE obtains the channel quality of the beams with different downtilt angles in each target cell, so as to obtain the channel quality of the optimal downtilt angle beam for the UE itself in the target cell, is a hot issue that those skilled in the art are concerned about; similarly, this problem also exists in the homogeneous network, that is, when different macro cells all adopt the AAS technology, beams with different downtilt angles can be generated in each macro cell. Then, when the UE switches between different macro cells, how the UE obtains the channel quality of the beams with different downtilt angles in the target cell.

[0010] In the prior art, when the UE is preparing for cell handover, the UE measures the channel quality of the target cell, such as the Reference Signal Received Power (RSRP), where the channel quality of the target cell is measured through the cell-specific reference signal (CRS) antenna port 0 of the target cell. When the UE measures the channel quality of the target cell, the UE first synchronizes with the target cell, and then obtains the identification of the target cell, that is, the cell ID, from the synchronization signal. Then, according to the obtained target cell ID, the time-frequency resource position of the target cell CRS antenna port 0 and the sequence of the reference signal are obtained; finally, the measurement is performed according to the target cell CRS antenna port 0.

[0011] However, the CRS is a cell-specific reference signal and is broadcast to all UEs in the cell. The broadcast information or broadcast channel of the cell is transmitted on the antenna port corresponding to the CRS. Therefore, the beam of the CRS is usually an omnidirectional one, aiming to ensure the coverage of the cell. Therefore, the channel quality of the beams with different downtilt angles of the target cell cannot be obtained by using the target cell CRS in the prior art. Summary of the Invention

[0012] The embodiments of the present invention provide a channel measurement method, a cell handover method, related devices and systems, which solve the problem that the channel quality of the beams with different downtilt angles of the target cell cannot be obtained in the prior art, and optimize the cell handover.

[0013] In a first aspect, the embodiments of the present invention provide a channel measurement method, including:

[0014] Receiving the reference signal resource configuration information of the target cell; wherein the number of the reference signal resource configuration information of the target cell is greater than 1, and the reference signal resource configuration information respectively corresponds to a beam with a different downtilt angle;

[0015] Based on the reference signal resource configuration information, performing channel measurement on the target cell;

[0016] Report the channel measurement results of the target cell to the serving cell.

[0017] Combined with the first aspect, in a first possible implementation manner, the receiving the reference signal resource configuration information of each target cell includes:

[0018] Receiving the notification of the reference signal resource configuration information of each target cell in a broadcast manner; or,

[0019] Receiving the notification of the reference signal resource configuration information of each target cell from the serving cell through user equipment specific signaling.

[0020] Combined with the first possible implementation manner of the first aspect, in a second possible implementation manner, the user equipment specific signaling includes high layer signaling of radio resource control or layer 1 dynamic signaling.

[0021] Combined with the first aspect, or the first possible implementation manner of the first aspect, or the second possible implementation manner of the first aspect, in a third possible implementation manner, each set of reference signal resource configuration information of the target cell corresponds to a precoding matrix.

[0022] Combined with the first aspect, or the first possible implementation manner of the first aspect, or the second possible implementation manner of the first aspect, or the third possible implementation manner of the first aspect, in a fourth possible implementation manner, the target cell includes the serving cell.

[0023] Combined with the first aspect, or the first possible implementation manner of the first aspect, or the second possible implementation manner of the first aspect, or the third possible implementation manner of the first aspect, or the fourth possible implementation manner of the first aspect, in a fifth possible implementation manner, the reporting the channel measurement results of the target cell to the serving cell includes any one of the following:

[0024] Reporting the channel quality measurement information corresponding to each set of reference signal resource configuration information configured for the target cell to the serving cell; or

[0025] Reporting the channel quality measurement information corresponding to the average value of the channel quality measurement information of the target cell; the average value of the channel quality measurement information is the average value of the channel quality measurement information corresponding to all the reference signal resource configuration information configured in the target cell; or

[0026] Reporting the channel quality measurement information corresponding to the maximum value of the channel quality measurement information of the target cell; the maximum value of the channel quality measurement information is the maximum value among the channel quality measurement information corresponding to all the reference signal resource configuration information configured in the target cell; or

[0027] Report channel quality measurement information corresponding to at least one set of reference signal resource configuration information configured for a target cell to the serving cell in the form of a bitmap.

[0028] In a second aspect, an embodiment of the present invention provides a channel measurement method, including:

[0029] Weight signals on each set of antennas with different weighting factors according to beams with different downtilts, respectively obtaining different reference signal resource configuration information; each set of the reference signal resource configuration information corresponds to a beam with a different downtilt.

[0030] Send at least two sets of reference signal resource configuration information to a user equipment for the user equipment to perform channel measurement.

[0031] Combined with the second aspect, in a first possible implementation manner, each set of the reference signal resource configuration information corresponds to a precoding matrix.

[0032] In a third aspect, an embodiment of the present invention provides a cell handover method, including:

[0033] Receive a channel measurement result of a target cell reported by a user equipment; the channel measurement result is a channel measurement result obtained by the user equipment performing channel measurement on the target cell according to the received reference signal resource configuration information of the target cell, where the number of pieces of reference signal resource configuration information of the target cell received by the user equipment is greater than 1; each set of the reference signal resource configuration information corresponds to a beam with a different downtilt.

[0034] Judge whether it is necessary to perform cell handover on the user equipment according to the channel measurement result.

[0035] Combined with the third aspect, in a first possible implementation manner, the target cell includes the serving cell of the user equipment.

[0036] Combined with the third aspect, or the first possible implementation manner of the third aspect, in a second possible implementation manner, the receiving the channel measurement result of the target cell reported by the user equipment includes any one of the following:

[0037] Receive channel quality measurement information corresponding to each set of reference signal resource configuration information configured for the target cell reported by the user equipment; or

[0038] Receive channel quality measurement information corresponding to an average value of the channel quality measurement information of the target cell; the average value of the channel quality measurement information is an average value of the channel quality measurement information corresponding to all reference signal resource configuration information configured in the target cell; or

[0039] Receive the channel quality measurement information corresponding to the maximum value of the channel quality measurement information of the target cell reported by the user equipment; the maximum value of the channel quality measurement information is the maximum value among the channel quality measurement information corresponding to all the configured reference signal resource configuration information in the target cell; or

[0040] Receive the channel quality measurement information corresponding to at least one set of reference signal resource configuration information configured in the target cell reported by the user equipment in the form of a bitmap.

[0041] Combined with the third aspect, or the first possible implementation manner of the third aspect, or the second possible implementation manner of the third aspect, in the third possible implementation manner, each set of reference signal resource configuration information corresponds to a precoding matrix.

[0042] Combined with the third aspect, or the first possible implementation manner of the third aspect, or the second possible implementation manner of the third aspect, or the third possible implementation manner of the third aspect, in the fourth possible implementation manner, when receiving the channel measurement result reported by the user equipment corresponding to at least two sets of reference signal resource configuration information, the determining whether to perform cell handover on the user equipment according to the channel measurement result includes:

[0043] According to at least two sets of reference signal resource configuration information corresponding to the channel measurement result, when it is determined that the channel quality of the target cell is greater than the channel quality of the serving cell, select the target cell with the highest channel quality to perform cell handover on the user equipment.

[0044] Combined with the second possible implementation manner of the third aspect, in the fifth possible implementation manner, when receiving the channel quality measurement information corresponding to the average value of the channel quality measurement information of at least two target cells reported by the user equipment, the determining whether to perform cell handover on the user equipment according to the channel measurement result includes:

[0045] Select the target cell with the largest average value among the channel quality measurement information of at least two target cells;

[0046] According to the channel quality measurement information corresponding to the selected target cell, when it is determined that the channel quality of the target cell is greater than the channel quality of the serving cell, select the target cell to perform cell handover on the user equipment.

[0047] Combined with the second possible implementation manner of the third aspect, in the sixth possible implementation manner, when receiving the channel quality measurement information corresponding to the maximum value of the channel quality measurement information of at least two target cells reported by the user equipment, the determining whether to perform cell handover on the user equipment according to the channel measurement result includes:

[0048] Select the target cell with the largest value among the maximum values of the channel quality measurement information of at least two target cells;

[0049] According to the channel quality measurement information corresponding to the selected target cell, when it is determined that the channel quality of the target cell is greater than the channel quality of the serving cell, select the target cell to perform cell handover on the user equipment.

[0050] In a fourth aspect, an embodiment of the present invention provides a channel measurement device, including:

[0051] A first receiving module, configured to receive reference signal resource configuration information of a target cell; where the number of pieces of reference signal resource configuration information of the target cell is greater than 1, and each piece of reference signal resource configuration information corresponds to a beam with a different downtilt angle;

[0052] A first channel measurement module, configured to perform channel measurement on the target cell according to the reference signal resource configuration information received by the first receiving module;

[0053] A reporting module, configured to report the channel measurement result of the target cell to the serving cell.

[0054] In combination with the fourth aspect, in a first possible implementation manner, the first receiving module includes:

[0055] A first receiving unit, configured to receive a notification of the reference signal resource configuration information of each target cell in a broadcast manner; or / and,

[0056] A second receiving unit, configured to receive a notification of the reference signal resource configuration information of each target cell through a signaling specific to the user equipment by the serving cell.

[0057] In combination with the first possible implementation manner of the fourth aspect, in a second possible implementation manner, the specific signaling includes a high-layer signaling of radio resource control or a layer 1 dynamic signaling.

[0058] In combination with the fourth aspect, or the first possible implementation manner of the fourth aspect, or the second possible implementation manner of the fourth aspect, in a third possible implementation manner, each set of reference signal resource configuration information of the target cell corresponds to a precoding matrix.

[0059] In combination with the fourth aspect, or the first possible implementation manner of the fourth aspect, or the second possible implementation manner of the fourth aspect, or the third possible implementation manner of the fourth aspect, in a fourth possible implementation manner, the target cell includes the serving cell.

[0060] Combined with the fourth aspect, or the first possible implementation manner of the fourth aspect, or the second possible implementation manner of the fourth aspect, or the third possible implementation manner of the fourth aspect, or the fourth possible implementation manner of the fourth aspect, in the fifth possible implementation manner, the reporting module includes any one or more of the following units:

[0061] The first reporting unit is configured to report the channel quality measurement information corresponding to each set of reference signal resource configuration information configured for the target cell to the serving cell;

[0062] The second reporting unit is configured to report the channel quality measurement information corresponding to the average value of the channel quality measurement information of the target cell to the serving cell; the average value of the channel quality measurement information is the average value of the channel quality measurement information corresponding to all the reference signal resource configuration information configured in the target cell;

[0063] The third reporting unit is configured to report the channel quality measurement information corresponding to the maximum value of the channel quality measurement information of the target cell to the serving cell; the maximum value of the channel quality measurement information is the maximum value among the channel quality measurement information corresponding to all sets of reference signal resource configuration information configured in the target cell;

[0064] The fourth reporting unit is configured to report the channel quality measurement information corresponding to at least one set of reference signal resource configuration information configured for the target cell to the serving cell in the form of a bitmap.

[0065] In a fifth aspect, an embodiment of the present invention provides a channel measurement device, including:

[0066] A configuration information generation module, configured to weight the signals on each set of antennas with different weighting factors according to the beams with different downtilts, and respectively obtain different reference signal resource configuration information; the reference signal resource configuration information respectively corresponds to a beam with a different downtilt;

[0067] A configuration information sending module, configured to send at least two sets of reference signal resource configuration information to a user equipment for the user equipment to perform channel measurement.

[0068] Combined with the fifth aspect, in the first possible implementation manner, each set of reference signal resource configuration information corresponds to a precoding matrix.

[0069] In a sixth aspect, an embodiment of the present invention provides a cell handover device, including:

[0070] A channel measurement result receiving module, configured to receive the channel measurement results of a target cell reported by a user equipment; the channel measurement results are the channel measurement results obtained by the user equipment performing channel measurement on the target cell according to the received reference signal resource configuration information of the target cell, where the number of pieces of reference signal resource configuration information received by the user equipment for the target cell is greater than 1; each piece of reference signal resource configuration information corresponds to a beam with a different downward tilt angle.

[0071] A handover determination module, configured to determine whether a cell handover needs to be performed on the user equipment according to the channel measurement results received by the channel measurement result receiving module.

[0072] Combined with the sixth aspect, in a first possible implementation manner, the cell handover device further includes:

[0073] A sending module, configured to send, in a broadcast manner or through a signaling specific to the user equipment, at least one set of reference signal resource configuration information of each target cell including the serving cell to the user equipment.

[0074] Combined with the sixth aspect, or the first possible implementation manner of the sixth aspect, in a second possible implementation manner, the channel measurement results received by the channel measurement result receiving module from the user equipment reporting the target cell include any one of the following:

[0075] Receiving the channel quality measurement information corresponding to each set of reference signal resource configuration information configured for the target cell reported by the user equipment; or

[0076] Receiving the channel quality measurement information corresponding to the average value of the channel quality measurement information of the target cell reported by the user equipment; the average value of the channel quality measurement information is the average value of the channel quality measurement information corresponding to all the reference signal resource configuration information configured in the target cell; or

[0077] Receiving the channel quality measurement information corresponding to the maximum value of the channel quality measurement information of the target cell reported by the user equipment; the maximum value of the channel quality measurement information is the maximum value among the channel quality measurement information corresponding to all the reference signal resource configuration information configured in the target cell; or

[0078] Receiving the channel quality measurement information corresponding to at least one set of reference signal resource configuration information configured for the target cell reported by the user equipment in the form of a bitmap.

[0079] Combined with the sixth aspect, or the first possible implementation manner of the sixth aspect, or the second possible implementation manner of the sixth aspect, in the third possible implementation manner, when the channel measurement result receiving module receives the channel measurement results of the target cell reported by the user equipment corresponding to at least two sets of reference signal resource configuration information, the handover determination module is specifically configured to:

[0080] According to at least two sets of reference signal resource configuration information corresponding to the channel measurement results, when it is determined that the channel quality of the target cell is greater than the channel quality of the serving cell, select the target cell with the highest channel quality to perform cell handover on the user equipment.

[0081] Combined with the second possible implementation manner of the sixth aspect, in the fourth possible implementation manner, when the channel measurement result receiving module receives the channel quality measurement information corresponding to the average value of the channel quality measurement information of at least two target cells reported by the user equipment, the handover determination module includes:

[0082] A first selection unit, configured to select the target cell with the largest value among the average values of the channel quality measurement information of at least two target cells;

[0083] A first selection and handover unit, configured to, according to the channel quality measurement information corresponding to the selected target cell, when it is determined that the channel quality of the target cell is greater than the channel quality of the serving cell, select the target cell to perform cell handover on the user equipment.

[0084] Combined with the second possible implementation manner of the sixth aspect, in the fifth possible implementation manner, when the channel measurement result receiving module receives the channel quality measurement information corresponding to the maximum value of the channel quality measurement information of at least two target cells reported by the user equipment, the handover determination module includes:

[0085] A second selection unit, configured to select the target cell with the largest value among the maximum values of the channel quality measurement information of at least two target cells;

[0086] A second selection and handover unit, configured to, according to the channel quality measurement information corresponding to the selected target cell, when it is determined that the channel quality of the target cell is greater than the channel quality of the serving cell, select the target cell to perform cell handover on the user equipment.

[0087] Seventh aspect, an embodiment of the present invention provides a network device, including a receiver and a processor; wherein

[0088] The receiver receives the reference signal resource configuration information of the target cell; wherein the number of the reference signal resource configuration information of the target cell is greater than 1, and each of the reference signal resource configuration information corresponds to a beam with a different downtilt angle;

[0089] The processor performs channel measurement on the target cell based on the reference signal resource configuration information, and reports the channel measurement result of the target cell to the serving cell.

[0090] Combined with the seventh aspect, in the first possible implementation manner, the receiver obtaining the reference signal resource configuration information of each target cell includes:

[0091] The receiver receives the notification of the reference signal resource configuration information of each target cell in a broadcast manner; or,

[0092] The receiver receives the notification of the reference signal resource configuration information of each target cell from the serving cell through user equipment specific signaling.

[0093] Combined with the first possible implementation manner of the seventh aspect, in the second possible implementation manner, the user equipment specific signaling includes high layer signaling of radio resource control or layer 1 dynamic signaling.

[0094] Combined with the seventh aspect, or the first possible implementation manner of the seventh aspect, or the second possible implementation manner of the seventh aspect, in the third possible implementation manner, each set of reference signal resource configuration information of the target cell corresponds to a precoding matrix.

[0095] Combined with the seventh aspect, or the first possible implementation manner of the seventh aspect, or the second possible implementation manner of the seventh aspect, or the third possible implementation manner of the seventh aspect, in the fourth possible implementation manner, the target cell includes the serving cell.

[0096] Combined with the seventh aspect, or the first possible implementation manner of the seventh aspect, or the second possible implementation manner of the seventh aspect, or the third possible implementation manner of the seventh aspect, or the fourth possible implementation manner of the seventh aspect, in the fifth possible implementation manner, the processor reporting the channel measurement result of the target cell to the serving cell includes any one of the following steps:

[0097] Reporting the channel quality measurement information corresponding to each set of reference signal resource configuration information configured for the target cell to the serving cell; or

[0098] Reporting the channel quality measurement information corresponding to the average value of the channel quality measurement information of the target cell; the average value of the channel quality measurement information is the average value of the channel quality measurement information corresponding to all reference signal resource configuration information configured in the target cell; or

[0099] Report the channel quality measurement information corresponding to the maximum value of the channel quality measurement information of the target cell to the serving cell; the maximum value of the channel quality measurement information is the maximum value among the channel quality measurement information corresponding to all the reference signal resource configuration information configured in the target cell; or

[0100] Report the channel quality measurement information corresponding to at least one set of reference signal resource configuration information configured in the target cell to the serving cell in the form of a bitmap.

[0101] In an eighth aspect, an embodiment of the present invention provides a network device, including: an input device, an output device, a memory, and a processor;

[0102] Wherein, the processor performs the following steps:

[0103] According to the beams with different downtilts, weight the signals on each set of antennas with different weighting factors to obtain different reference signal resource configuration information respectively; the reference signal resource configuration information respectively corresponds to a beam with a different downtilt; send at least two sets of reference signal resource configuration information to the user equipment through the output device for the user equipment to perform channel measurement.

[0104] Combined with the eighth aspect, in a first possible implementation manner, each set of reference signal resource configuration information corresponds to a precoding matrix.

[0105] In a ninth aspect, an embodiment of the present invention provides a base station device, including a receiver and a processor; wherein

[0106] The receiver receives the channel measurement result of the target cell reported by the user equipment; the channel measurement result is the channel measurement result of the user equipment for channel measurement of the target cell according to the received reference signal resource configuration information of the target cell, wherein the number of the reference signal resource configuration information of the target cell received by the user equipment is greater than 1; the reference signal resource configuration information respectively corresponds to a beam with a different downtilt;

[0107] The processor performs the following steps:

[0108] Judge whether it is necessary to perform cell handover on the user equipment according to the channel measurement result.

[0109] Combined with the ninth aspect, in a first possible implementation manner, the processor further performs the following steps:

[0110] Send at least one set of reference signal resource configuration information of each target cell including the serving cell to the user equipment in a broadcast manner or through a signaling specific to the user equipment.

[0111] Combined with the ninth aspect, or the first possible implementation manner of the ninth aspect, in the second possible implementation manner, the receiver receives the channel measurement result of the target cell reported by the user equipment, including any one of the following:

[0112] Receive the channel quality measurement information corresponding to each set of reference signal resource configuration information configured for the target cell reported by the user equipment; or

[0113] Receive the channel quality measurement information corresponding to the average value of the channel quality measurement information of the target cell reported by the user equipment; the average value of the channel quality measurement information is the average value of the channel quality measurement information corresponding to all the reference signal resource configuration information configured in the target cell; or

[0114] Receive the channel quality measurement information corresponding to the maximum value of the channel quality measurement information of the target cell reported by the user equipment; the maximum value of the channel quality measurement information is the maximum value among the channel quality measurement information corresponding to all the reference signal resource configuration information configured in the target cell; or

[0115] Receive the channel quality measurement information corresponding to at least one set of reference signal resource configuration information configured for the target cell reported by the user equipment in the form of a bitmap.

[0116] Combined with the ninth aspect, or the first possible implementation manner of the ninth aspect, or the second possible implementation manner of the ninth aspect, in the third possible implementation manner, when the receiver receives the channel measurement result of the target cell reported by the user equipment corresponding to at least two sets of reference signal resource configuration information, the processor determines whether to perform a cell handover on the user equipment according to the channel measurement result, including:

[0117] According to the at least two sets of reference signal resource configuration information corresponding to the channel measurement result, when it is determined that the channel quality of the target cell is greater than the channel quality of the serving cell, select the target cell with the highest channel quality to perform a cell handover on the user equipment.

[0118] Combined with the second possible implementation manner of the ninth aspect, in the fourth possible implementation manner, when the receiver receives the channel quality measurement information corresponding to the average value of the channel quality measurement information of at least two target cells reported by the user equipment, the processor determines whether to perform a cell handover on the user equipment according to the channel measurement result, including:

[0119] Select the target cell with the largest average value among the average values of the channel quality measurement information of at least two target cells; according to the channel quality measurement information corresponding to the selected target cell, when it is determined that the channel quality of the target cell is greater than the channel quality of the serving cell, select the target cell to perform a cell handover on the user equipment.

[0120] Combined with the second possible implementation manner of the ninth aspect, in the fifth possible implementation manner, when the receiver receives the channel quality measurement information corresponding to the maximum value of the channel quality measurement information reported by the user equipment for at least two target cells, the processor determines whether to perform a cell handover on the user equipment according to the channel measurement result, including:

[0121] Select the target cell with the largest value among the maximum values of the channel quality measurement information of at least two target cells; according to the channel quality measurement information corresponding to the selected target cell, when it is determined that the channel quality of the target cell is greater than the channel quality of the serving cell, select the target cell to perform a cell handover on the user equipment.

[0122] In a tenth aspect, an embodiment of the present invention provides a cell handover system, including a base station device and a first network device, where

[0123] The first network device is the network device in the seventh aspect, or the first possible implementation manner of the seventh aspect, or the second possible implementation manner of the seventh aspect, or the third possible implementation manner of the seventh aspect, or the fourth possible implementation manner of the seventh aspect, or the fifth possible implementation manner of the seventh aspect;

[0124] The base station device is the base station device in the ninth aspect, or the first possible implementation manner of the ninth aspect, or the second possible implementation manner of the ninth aspect, or the third possible implementation manner of the ninth aspect, or the fourth possible implementation manner of the ninth aspect, or the fifth possible implementation manner of the ninth aspect, or the sixth possible implementation manner of the ninth aspect.

[0125] Combined with the tenth aspect, in the first possible implementation manner, the cell handover system further includes a second network device, where

[0126] The second network device is the network device in the eighth aspect, or the first possible implementation manner of the eighth aspect.

[0127] By implementing the embodiments of the present invention, the reference signal resource configuration information of the target cell is obtained, and channel measurement is performed on the target cell according to each set of reference signal resource configuration information. The reference signal resource configuration information respectively corresponds to a beam with a different downward tilt angle, which solves the problem in the prior art that the channel quality of the beams with different downward tilt angles of the target cell cannot be obtained. The obtained channel measurement results of the target cell with a downward tilt angle beam are reported to the serving cell for cell handover processing, greatly optimizing the cell handover, improving the resource utilization rate or spectral efficiency, increasing the system capacity, and better realizing the dynamic change of the coverage of each cell. Description of the Drawings

[0128] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the accompanying drawings required for the description of the embodiments or the prior art. Obviously, the accompanying drawings in the following description are only some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other accompanying drawings can be obtained based on these drawings.

[0129] Figure 1 is a schematic diagram of the principle of beamforming in the horizontal direction of a horizontal antenna configuration in the prior art;

[0130] Figure 2 is a schematic diagram of the principle of three-dimensional beamforming of a two-dimensional antenna configuration in the prior art;

[0131] Figure 3 is a schematic diagram of the heterogeneous network structure of a macro cell and a micro cell in the prior art;

[0132] Figure 4 is a schematic diagram of the principle of applying three-dimensional beamforming in a heterogeneous network in the prior art;

[0133] Figure 5 is a schematic flowchart of the first embodiment of the channel measurement method provided by the present invention;

[0134] Figure 6 is a schematic flowchart of the second embodiment of the channel measurement method provided by the present invention;

[0135] Figure 7 is a schematic flowchart of the third embodiment of the channel measurement method provided by the present invention;

[0136] Figure 8 is a schematic flowchart of the cell handover method in the embodiment of the present invention;

[0137] Figure 9 is a schematic structural diagram of the first embodiment of the channel measurement device of the present invention;

[0138] Figure 10 is a schematic structural diagram of the first acquisition module in the embodiment of the present invention;

[0139] Figure 11 is a schematic structural diagram of the second embodiment of the channel measurement device of the present invention;

[0140] Figure 12 is a schematic structural diagram of the reporting module in the embodiment of the present invention;

[0141] Figure 13 is a schematic structural diagram of the channel measurement device in the embodiment of the present invention;

[0142] Figure 14 It is a schematic structural diagram of the cell handover device according to an embodiment of the present invention;

[0143] Figure 15 It is a schematic structural diagram of the first embodiment of the handover judgment module of the present invention;

[0144] Figure 16 It is a schematic structural diagram of the second embodiment of the handover judgment module of the present invention;

[0145] Figure 17 It is a schematic structural diagram of the first embodiment of the network device provided by the present invention;

[0146] Figure 18 It is a schematic structural diagram of the second embodiment of the network device provided by the present invention;

[0147] Figure 19 It is a schematic structural diagram of the base station device according to an embodiment of the present invention;

[0148] Figure 20 It is a schematic structural diagram of the cell handover system according to an embodiment of the present invention. Detailed implementation manners

[0149] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without making creative efforts shall fall within the protection scope of the present invention.

[0150] Refer to Figure 5 , which is a schematic flowchart of the first embodiment of the channel measurement method provided by the present invention. The method includes:

[0151] Step S500: Receive the reference signal resource configuration information of the target cell; wherein the number of the reference signal resource configuration information of the target cell is greater than 1, and the reference signal resource configuration information respectively corresponds to a beam with a different downtilt angle;

[0152] Specifically, multiple sets of reference signal resource configuration information can be configured in a cell. Each set of reference signal resource configuration information in the cell corresponds to a certain down-tilt beam of the cell, that is, the information of different down-tilt beams in the cell can be reflected by the transmitted reference signal resource configuration information. More specifically, each set of reference signal resource configuration information in the cell can be generated by using different weighting factors on each set of antenna signals of the cell. For example, for a two-dimensional antenna configuration, beams with different down-tilts can be obtained by weighting the signals on each set of antennas, and different weighting factors can generate beams with different down-tilts. Therefore, multiple sets of reference signal resource configuration information can be configured in the cell, and each set of reference signal resource configuration information of the target cell can correspond to a precoding matrix of the target cell. Specifically, when transmitting different reference signals, different weighting factors can be used on each set of different antennas.

[0153] In more detail, taking the Channel State Information Reference Signal (CSI-RS) as an example for illustration below, but the embodiments of the present invention are not limited to CSI-RS, and it can also be other types of pilot resources such as Demodulation Reference Signal (DM RS), Sounding Reference Signal (SRS), etc. For example, the base station eNB configures CSI-RS resource 1 (i.e., a set of reference signal resource configuration information) and CSI-RS resource 2 (i.e., another set of reference signal resource configuration information) in the cell. Each CSI-RS resource can include the number of CSI-RS ports, the time-frequency position of the reference signal corresponding to each CSI-RS port, and the sequence information of the CSI-RS. By using different weighting factors on each set of antenna signals of the cell, the down-tilt corresponding to each CSI-RS beam in CSI-RS resource 1 is A, and the down-tilt corresponding to each CSI-RS beam in CSI-RS resource 2 is B.

[0154] After the above configuration is completed, in step S500, the UE can receive the reference signal resource configuration information of each target cell, where the reference signal resource configuration information of at least one target cell is greater than 1 set, that is, some target cells can be configured with multiple sets of reference signal resource configuration information, and some cells can be configured with only one set of reference signal resource configuration information.

[0155] Step S502: Perform channel measurement on the target cell based on the reference signal resource configuration information;

[0156] Specifically, the measurement results for each set of reference signals can be a channel quality indicator (CQI), a reference signal receiving power (RSRP), a reference signal received quality (RSRQ), a received signal strength indication (RSSI), etc.

[0157] Step S504: Report the channel measurement results of the target cell to the serving cell.

[0158] Specifically, the UE can report the channel measurement results of each target cell to the serving cell, or can preferably report the channel measurement results of a part of the target cells according to the specific situation; after the current serving cell of the UE receives the channel measurement results of at least one target cell reported by the UE, it can determine whether the UE needs to perform cell handover, and which target cell to hand over to and the serving area with the optimal downtilt beam in the target cell.

[0159] Furthermore, step S500 can be specifically:

[0160] The UE receives the notification of the reference signal resource configuration information of each target cell broadcast by the serving cell; or, the UE receives the notification of the reference signal resource configuration information of each target cell through the signaling specific to the user equipment.

[0161] Specifically, the specific signaling can include the high-layer signaling of radio resource control (RRC), or the layer 1 dynamic signaling.

[0162] See Figure 6 , which is a schematic flowchart of the second embodiment of the channel measurement method provided by the present invention. The method includes:

[0163] Step S600: Receive at least one set of reference signal resource configuration information of the serving cell from the serving cell in a broadcast manner or through the signaling specific to the user equipment; receive the reference signal resource configuration information of each target cell from the serving cell; where the number of reference signal resource configuration information of at least one target cell is greater than 1;

[0164] Specifically, the target cell in the embodiment of the present invention includes the serving cell, that is, the UE can obtain multiple sets of reference signal resource configuration information of its own serving cell or the serving cell. The serving cell configures the reference signal resource configuration information in a broadcast manner or through the signaling specific to the UE;

[0165] Next, taking CSI-RS as an example for illustration: The configurations of CSI-RS Resource 1 and CSI-RS Resource 2 can be cell-specific for the serving cell (i.e., the configuration information is notified to UEs in the cell through broadcasting), or UE-specific (i.e., the configuration information is sent to different UEs through UE-specific signaling, which can be high-layer signaling of RRC (radio resource control) or layer 1 dynamic signaling). For the UE-specific CSI-RS resource configuration method, the eNB can configure a CSI-RS resource for the UE according to the UE's location. For example, if the location of UE1 is under the coverage of the downtilt angle A beam, then the eNB configures CSI-RS Resource 1 for UE1, and UE1 will perform measurements and feedback based on the configured CSI-RS Resource 1.

[0166] For the step of receiving the reference signal resource configuration information of each target cell from the serving cell, please refer to the description of the previous embodiment, which will not be elaborated here.

[0167] Step S602: Based on each set of received reference signal resource configuration information, perform channel measurements on the serving cell and each of the target cells;

[0168] Step S604: Report the channel measurement results of at least one target cell to the serving cell.

[0169] Specifically, the UE can report the channel measurement results of the serving cell and the channel measurement results of at least one target cell to the serving cell, for the serving cell to determine whether the UE needs to perform cell handover, and which target cell and the service area with the optimal downtilt angle beam in the target cell to handover to.

[0170] It should be noted that each set of reference signal resource configuration information in the embodiments of the present invention can correspond to a precoding matrix; specifically, it can include the ID of the cell, precoding matrix information, time-frequency resource location information, the number of ports, and pilot sequences, etc. The precoding matrix information contains the weighting factor information adopted by this set of reference signal resource configuration information, that is, the downtilt angle beam information corresponding to this set of reference signal resource configuration information.

[0171] Furthermore, step S504 or step S604 of the above embodiments can include any one of the following A, B, C, and D, that is, the method for the UE to report the channel measurement results to the serving cell can adopt one of the following four:

[0172] A. Report the channel quality measurement information corresponding to each set of reference signal resource configuration information configured for the target cell to the serving cell;

[0173] Specifically, the UE may report the channel measurement results of each target cell to the serving cell, or may preferably report the channel measurement results of a part of the target cells according to specific circumstances; when the UE reports all the channel measurement results to the serving cell, for example, the channel measurement result is RSRP, then the UE reports the RSRP corresponding to each set of reference signal resource configuration information configured for each target cell measured to the serving cell; subsequently, the serving cell determines whether the UE needs to perform a cell handover based on each received RSRP, and to which target cell and the serving area with the optimal downtilt beam in the target cell.

[0174] B. Report the channel quality measurement information corresponding to the average value of the channel quality measurement information of the target cell to the serving cell; the average value of the channel quality measurement information is the average value of the channel quality measurement information corresponding to all the reference signal resource configuration information configured in the target cell.

[0175] Specifically, the UE does not report all the channel measurement results to the serving cell, but may report, for at least one target cell, only the channel quality measurement information corresponding to one average value of the channel quality measurement information, that is, the reported channel quality measurement information is the channel quality measurement information corresponding to an average value of the measurement results of the target cell. For example, when the channel measurement result is RSRP, then the UE calculates the average value of the RSRP corresponding to each set of reference signal resource configuration information, and then may report the RSRP closest to the average value as the channel quality measurement information corresponding to the average value; it can be understood that when the channel measurement result is CQI, the CQI closest to the average value may be reported as the channel quality measurement information corresponding to the average value; compared with the above Scheme A, the reporting amount is greatly reduced; subsequently, the serving cell determines whether the UE needs to perform a cell handover based on the average values of at least one target cell received.

[0176] It can be understood that each target cell in the embodiments of the present invention corresponds to its own channel measurement result, and one average value of the channel quality measurement information corresponds to only one target cell, that is, one average value of the channel quality measurement information is the average value of the measurement results of one target cell reported correspondingly; for example, when the UE reports the channel quality measurement information corresponding to the average values of the channel quality measurement information of two target cells (Target Cell A and Target Cell B) to the serving cell, then the UE reports the channel quality measurement information corresponding to the average value of the channel quality measurement information measured corresponding to Target Cell A, and reports the channel quality measurement information corresponding to the average value of the channel quality measurement information measured corresponding to Target Cell B. The corresponding channel quality measurement information may include precoding matrix information for the network side to perform cell handover.

[0177] C. Report the channel quality measurement information corresponding to the maximum value of the channel quality measurement information of the target cell to the serving cell; the maximum value of the channel quality measurement information is the maximum value among the channel quality measurement information corresponding to each set of reference signal resource configuration information configured in the target cell.

[0178] Specifically, the UE does not report all channel measurement results to the serving cell. Instead, for at least one target cell, it only reports the channel quality measurement information corresponding to the maximum value of one channel quality measurement information; that is, it reports the channel quality measurement information corresponding to the maximum value in the measurement results of the target cell. For example, if the channel measurement result is RSRP, then the UE will select the channel quality measurement information corresponding to the maximum value of RSRP corresponding to each set of reference signal resource configuration information for reporting; compared with the above Scheme A, the reporting amount is greatly reduced. Subsequently, the serving cell determines whether the UE needs to perform cell handover based on the maximum value of the channel quality measurement information of at least one target cell received, as well as which target cell to hand over to and the service area with the optimal downtilt beam in the target cell. If handover is required, then compare which maximum value of the channel quality measurement information of each target cell is the largest and hand over to the target cell with the largest value.

[0179] It can be understood that each target cell in the embodiments of the present invention corresponds to its own channel measurement result, and one maximum value of the channel quality measurement information only corresponds to one target cell, that is, one maximum value of the channel quality measurement information is the maximum value of the measurement result of one target cell corresponding to the report; for example, when the UE reports the channel quality measurement information corresponding to the maximum value of the channel quality measurement information of two target cells (Target Cell C and Target Cell D) to the serving cell, then the UE will report the channel quality measurement information corresponding to the maximum value of the channel quality measurement information measured corresponding to Target Cell C, and report the channel quality measurement information corresponding to the maximum value of the channel quality measurement information measured corresponding to Target Cell D.

[0180] D. Report the channel quality measurement information corresponding to at least one set of reference signal resource configuration information configured in the target cell to the serving cell in the form of a Bitmap.

[0181] Specifically, the UE can selectively report the reference signal resource configuration information in at least one target cell, rather than reporting each set of reference signal resource configuration information in each target cell, and use the form of Bitmap to indicate which target cells and which sets of reference signal resource configuration information the reported channel quality measurement information corresponds to; for example, use the following Bitmap to indicate:

[0182] 1010 1011 001 011……

[0183] Each Bit in the above Bitmap represents a set of reference signal resource configuration information. 1 represents reporting the channel quality measurement information corresponding to the set of reference signal resource configuration information, while 0 represents not reporting. Each underscore represents multiple sets of reference signal resource configuration information for a target cell; that is, the first underscore 1010 represents that the target cell is configured with 4 sets of reference signal resource configuration information, and only the first and third sets of reference signal resource configuration information are reported; the second underscore 1011 represents that the target cell is configured with 4 sets of reference signal resource configuration information, and the first, third, and fourth sets of reference signal resource configuration information are reported, while the second set of reference signal resource configuration information is not reported; the third underscore 001 represents that the target cell is configured with 3 sets of reference signal resource configuration information, and only the third set of reference signal resource configuration information is reported.

[0184] The serving cell obtains and parses the channel quality measurement information corresponding to each set of reported reference signal resource configuration information, determines whether the UE needs to perform cell handover, and to which target cell and the serving area with the optimal downtilt beam in the target cell.

[0185] Implementing the embodiments of the present invention, by obtaining the reference signal resource configuration information of the target cell and performing channel measurement on the target cell according to each set of reference signal resource configuration information, where each set of reference signal resource configuration information corresponds to a beam with a different downtilt angle, the problem in the prior art that the channel quality of beams with different downtilt angles of the target cell cannot be obtained is solved. The obtained channel measurement results of the target cell with downtilt beams are reported to the serving cell for cell handover processing, greatly optimizing the cell handover, improving the utilization rate or spectral efficiency of resources, increasing the system capacity, and better realizing the dynamic change of the coverage of each cell.

[0186] To facilitate better implementation of the above solution of the embodiments of the present invention, the present invention also correspondingly provides a channel measurement method, as shown in Figure 7 the flowchart of the third embodiment of the channel measurement method provided by the present invention, including:

[0187] Step S700: According to the beams with different downtilt angles, weight the signals on each antenna with different weighting factors to obtain different sets of reference signal resource configuration information respectively; each set of reference signal resource configuration information corresponds to a beam with a different downtilt angle;

[0188] Step S702: Send at least two sets of reference signal resource configuration information to the user equipment for the user equipment to perform channel measurement.

[0189] Specifically, each set of reference signal resource configuration information corresponds to a precoding matrix. Multiple sets of reference signal resource configuration information can be configured in a cell. Each set of reference signal resource configuration information in the cell corresponds to a certain down-tilt beam of the cell. That is, the information of different down-tilt beams in the cell can be reflected by the sent reference signal resource configuration information. More specifically, each set of reference signal resource configuration information in the cell can be generated by using different weighting factors on each set of antenna signals of the cell. For example, for a two-dimensional antenna configuration, beams with different down-tilts can be obtained by weighting the signals on each set of antennas, and different weighting factors can generate beams with different down-tilts. Therefore, multiple sets of reference signal resource configuration information can be configured in the cell. Each set of reference signal resource configuration information of the target cell can correspond to a precoding matrix of the target cell. Specifically, when sending different reference signals, different weighting factors can be used on each different set of antennas.

[0190] In more detail, taking CSI-RS as an example for illustration below, but the embodiments of the present invention are not limited to CSI-RS and can also be other types of pilot resources such as DM RS, SRS, etc. For example, the base station eNB configures CSI-RS resource 1 (i.e., a set of reference signal resource configuration information) and CSI-RS resource 2 (i.e., another set of reference signal resource configuration information) in the cell. Each CSI-RS resource can include the number of CSI-RS ports, the time-frequency position of the reference signal corresponding to each CSI-RS port, and the sequence information of the CSI-RS. By using different weighting factors on each set of antenna signals of the cell, the down-tilt corresponding to each CSI-RS beam in CSI-RS resource 1 is A, and the down-tilt corresponding to each CSI-RS beam in CSI-RS resource 2 is B.

[0191] After the above configuration is completed, network devices such as the base station eNB in step S702 can send at least two sets of reference signal resource configuration information to the UE for the user equipment to perform channel measurement.

[0192] To facilitate better implementation of the above solution of the embodiments of the present invention, the present invention also correspondingly provides a cell handover method, as Figure 8 shown in the flowchart of the cell handover method of the embodiments of the present invention, including:

[0193] Step S800: Receive the channel measurement result of the target cell reported by the user equipment; the channel measurement result is the channel measurement result obtained by the user equipment performing channel measurement on the target cell according to the received reference signal resource configuration information of the target cell. Among them, the number of reference signal resource configuration information received by the user equipment is greater than 1; the reference signal resource configuration information respectively corresponds to a beam with a different down-tilt.

[0194] Specifically, the target cell may include the serving cell of the user equipment. The serving cell may also send at least one set of reference signal resource configuration information of the serving cell or other target cells to the user equipment by means of broadcasting or by signaling specific to the user equipment; the specific signaling may include high-layer signaling of RRC or layer-1 dynamic signaling. For how the UE measures and reports the channel measurement results, please refer to the above Figure 5 and Figure 6 embodiments and will not be elaborated here.

[0195] Step S802: Determine whether to perform cell handover on the user equipment according to the channel measurement results;

[0196] Specifically, the serving cell compares the channel measurement results of the target cell reported by the UE with the channel measurement results of the serving cell reported by the UE to determine whether to perform handover; for example: if it is found that the channel quality of the target cell is greater than the channel quality of the serving cell, the serving cell determines that handover can be performed; or if the difference between the channel quality of the target cell and the channel quality of the serving cell meets a certain threshold, handover can be determined.

[0197] More specifically, when the serving cell determines that the UE needs to perform cell handover, the serving cell may send the information of the reference signal with the best channel quality corresponding to the UE in the target cell to the target cell, and finally complete the handover from the serving cell to the target cell; for example, the identification information in the reference signal resource configuration information may be sent to the target cell, and the serving cell may send it through the X2 interface between base stations.

[0198] Implementing the embodiments of the present invention, by obtaining the reference signal resource configuration information of the target cell and performing channel measurement on the target cell according to each set of reference signal resource configuration information, where each set of reference signal resource configuration information corresponds to a beam with a different downward tilt angle, the problem in the prior art that the channel quality of the beams with different downward tilt angles of the target cell cannot be obtained is solved. The obtained channel measurement results of the target cell with a downward tilt angle beam are reported to the serving cell for cell handover processing, greatly optimizing the cell handover, improving the resource utilization rate or spectral efficiency, increasing the system capacity, and better realizing the dynamic change of the coverage of each cell.

[0199] To facilitate better implementation of the above solutions of the embodiments of the present invention, the following also provides related devices for cooperating to implement the above solutions.

[0200] See Figure 9 the structural schematic diagram of the first embodiment of the channel measurement device of the present invention shown in. The channel measurement device 90 includes: a first receiving module 900, a first channel measurement module 902, and a reporting module 904, where

[0201] The first receiving module 900 is configured to receive the reference signal resource configuration information of the target cell; wherein the number of the reference signal resource configuration information of the target cell is greater than 1, and each of the reference signal resource configuration information corresponds to a beam with a different downward tilt angle;

[0202] The first channel measurement module 902 is configured to perform channel measurement on the target cell according to the reference signal resource configuration information received by the first receiving module 900;

[0203] The reporting module 904 is configured to report the channel measurement result of the target cell to the serving cell.

[0204] Furthermore, in combination with Figure 10 the structural schematic diagram of the first obtaining module of the embodiment of the present invention shown, the structure of the channel measurement device 90 in the embodiment of the present invention is described in detail; the first receiving module 900 includes: a first receiving unit 9000 or / and a second receiving unit 9002, Figure 10 taking the example of including both the first receiving unit 9000 and the second receiving unit 9002 at the same time for illustration;

[0205] The first receiving unit 9000 is configured to receive the notification of the reference signal resource configuration information of each target cell in a broadcast manner; or / and,

[0206] The second receiving unit 9002 is configured to receive the notification of the reference signal resource configuration information of each target cell from the serving cell through UE-specific signaling.

[0207] Specifically, the specific signaling may include high-layer signaling of Radio Resource Control (RRC), or layer 1 dynamic signaling.

[0208] Still further, the target cell in the embodiment of the present invention includes the serving cell, that is, the channel measurement device 90 can obtain multiple sets of reference signal resource configuration information of its own serving cell or the local cell. The serving cell configures the reference signal resource configuration information through a broadcast manner or through UE-specific signaling. Specifically, the first receiving module 900 in the embodiment can receive multiple sets of reference signal resource configuration information of the local cell or other target cells, or the channel measurement device 90 includes another obtaining module. For example, reference can be made to Figure 11 the structural schematic diagram of the second embodiment of the channel measurement device of the present invention shown. In addition to the first receiving module 900, the first channel measurement module 902 and the reporting module 904, the channel measurement device 90 may further include a second obtaining module 906 and a second channel measurement module 908, wherein

[0209] The second acquisition module 906 is configured to acquire at least one set of reference signal resource configuration information of the serving cell in a broadcast manner or through signaling specific to the user equipment from the serving cell;

[0210] The second channel measurement module 908 is configured to perform channel measurement on the serving cell according to the reference signal resource configuration information acquired by the second acquisition module 906.

[0211] Specifically, the second acquisition module 906 may obtain multiple sets of reference signal resource configuration information of its own serving cell or the serving cell. The serving cell configures the reference signal resource configuration information in a broadcast manner or through signaling specific to the UE;

[0212] The following takes CSI-RS as an example for illustration: The configuration of CSI-RS resource 1 and CSI-RS resource 2 can be that the serving cell is cell-specific (i.e., the configuration information is notified to the UEs in the cell through broadcast), or UE-specific (i.e., the configuration information is sent to different UEs through UE-specific signaling, which can be high-layer signaling of RRC (radio resource control) or layer 1 dynamic signaling). For the UE-specific CSI-RS resource configuration method, the eNB can configure a CSI-RS resource for the UE according to the location of the UE. For example, if the location of UE1 is under the coverage of the downtilt angle A beam, then the eNB configures CSI-RS resource 1 for UE1, and UE1 will perform measurement and feedback according to the configured CSI-RS resource 1.

[0213] Specifically, the channel measurement device 90 may report the channel measurement results of the serving cell and the channel measurement results of at least one target cell to the serving cell, so that the serving cell can determine whether the UE needs to perform cell handover, and which target cell and the serving area with the optimal downtilt angle beam in the target cell to hand over to.

[0214] It should be noted that the reference signal resource configuration information in the embodiments of the present invention may include the ID of the cell, precoding matrix information, time-frequency resource location information, the number of ports, and pilot sequences, etc. The precoding matrix information contains the weighting factor information adopted by this set of reference signal resource configuration information, that is, the downtilt angle beam information corresponding to this set of reference signal resource configuration information.

[0215] It can be understood that the first receiving module 900 and the second acquisition module 906 may be the same hardware physical module or two separate hardware physical modules; the first channel measurement module 902 and the second channel measurement module 908 may also be the same hardware physical module or two separate hardware physical modules.

[0216] Furthermore, in combination with Figure 12The schematic structural diagram of the reporting module of the embodiment of the present invention is shown, and the structure of the channel measurement device 90 in the embodiment of the present invention will be described in detail; the reporting module 904 includes any one or more of a first reporting unit 9040, a second reporting unit 9042, a third reporting unit 9044, and a fourth reporting unit 9046. Figure 12 Taking the inclusion of these 4 units as an example for illustration;

[0217] The first reporting unit 9040 is used to report the channel quality measurement information corresponding to each set of reference signal resource configuration information configured for the target cell to the serving cell;

[0218] The second reporting unit 9042 is used to report the channel quality measurement information corresponding to the average value of the channel quality measurement information of the target cell to the serving cell; the average value of the channel quality measurement information is the average value of the channel quality measurement information corresponding to all the reference signal resource configuration information configured in the target cell.

[0219] The third reporting unit 9044 is used to report the channel quality measurement information corresponding to the maximum value of the channel quality measurement information of the target cell to the serving cell; the maximum value of the channel quality measurement information is the maximum value among the channel quality measurement information corresponding to all sets of reference signal resource configuration information configured in the target cell.

[0220] The fourth reporting unit 9046 is used to report the channel quality measurement information corresponding to at least one set of reference signal resource configuration information configured for the target cell to the serving cell in the form of a bitmap.

[0221] It can be understood that the functions of the various functional modules in the channel measurement device 90 can be specifically implemented according to the methods in the above method embodiments, and will not be elaborated here.

[0222] To facilitate better implementation of the above solution of the embodiment of the present invention, the present invention also correspondingly provides a cell handover device, as Figure 13 The schematic structural diagram of the channel measurement device of the embodiment of the present invention is shown. The channel measurement device 130 includes a configuration information generation module 1300 and a configuration information sending module 1302, where

[0223] The configuration information generation module 1300 is used to weight the signals on each set of antennas with different weighting factors according to the beams with different downtilts, and respectively obtain different reference signal resource configuration information; the reference signal resource configuration information respectively corresponds to a beam with a different downtilt.

[0224] The configuration information sending module 1302 is used to send at least two sets of reference signal resource configuration information to the user equipment for the user equipment to perform channel measurement.

[0225] It is understandable that the functions of the functional modules in the channel measurement device 130 can be specifically implemented according to the methods in the above method embodiments, which will not be elaborated here.

[0226] To facilitate better implementation of the above solution of the embodiments of the present invention, the present invention also correspondingly provides a cell handover device, as Figure 14 shown in the structural schematic diagram of the cell handover device of the embodiments of the present invention. The cell handover device 140 includes: a channel measurement result receiving module 1400 and a handover determination module 1402, where

[0227] The channel measurement result receiving module 1400 is used to receive the channel measurement results of the target cell reported by the user equipment; the channel measurement results are the channel measurement results obtained by the user equipment performing channel measurement on the target cell according to the received reference signal resource configuration information of the target cell, where the number of pieces of reference signal resource configuration information received by the user equipment is greater than 1; the reference signal resource configuration information respectively corresponds to a beam with a different down-tilt angle;

[0228] Specifically, the cell handover device 140 may further include a sending module, which sends at least one set of reference signal resource configuration information of the serving cell to the user equipment by means of broadcasting or by specific signaling of the user equipment; the specific signaling may include high-layer signaling of RRC or layer 1 dynamic signaling. For how the UE measures and reports the channel measurement results, please refer to the above embodiments, which will not be elaborated here.

[0229] The handover determination module 1402 is used to determine whether to perform cell handover on the user equipment according to the channel measurement results received by the channel measurement result receiving module;

[0230] Specifically, the handover determination module 1402 compares the channel measurement results of the target cell reported by the UE with the channel measurement results of the serving cell reported by the UE to determine whether to perform handover; for example: if it is found that the channel quality of the target cell is greater than the channel quality of the serving cell, the serving cell determines that handover can be performed; or if the difference between the channel quality of the target cell and the channel quality of the serving cell meets a certain threshold, it can be determined to perform handover.

[0231] More specifically, when the handover determination module 1402 determines that the UE needs to perform cell handover, the UE may send the information of the reference signal with the best channel quality in the target cell to the target cell, and finally complete the handover from the serving cell to the target cell; for example, the identification information in the reference signal resource configuration information may be sent to the target cell, and the serving cell may send it through the X2 interface between base stations.

[0232] Further, the channel measurement result receiving module 1400 receives the channel measurement results of the target cell reported by the user equipment, including any one of the following:

[0233] Receive the channel quality measurement information corresponding to each set of reference signal resource configuration information configured for the target cell reported by the user equipment; or

[0234] Receive the channel quality measurement information corresponding to the average value of the channel quality measurement information of the target cell reported by the user equipment; the average value of the channel quality measurement information is the average value of the channel quality measurement information corresponding to all the reference signal resource configuration information configured in the target cell; or

[0235] Receive the channel quality measurement information corresponding to the maximum value of the channel quality measurement information of the target cell reported by the user equipment; the maximum value of the channel quality measurement information is the maximum value among the channel quality measurement information corresponding to all the reference signal resource configuration information configured in the target cell; or

[0236] Receive the channel quality measurement information corresponding to at least one set of reference signal resource configuration information configured for the target cell reported by the user equipment in the form of a bitmap.

[0237] Specifically, when the channel measurement result receiving module 1400 receives the channel measurement results of the target cell reported by the user equipment corresponding to at least two sets of reference signal resource configuration information, the handover determination module 1402 is specifically configured to: according to the at least two sets of reference signal resource configuration information corresponding to the channel measurement results, when it is determined that the channel quality of the target cell is greater than the channel quality of the serving cell, select the target cell with the highest channel quality to perform cell handover on the user equipment.

[0238] Still further, as Figure 15 Shown in the schematic structural diagram of the first embodiment of the handover determination module of the present invention, when the channel measurement result receiving module 1400 receives the channel quality measurement information corresponding to the average value of the channel quality measurement information of at least two target cells reported by the user equipment, the handover determination module 1402 includes: a first selection unit 14020 and a first selection handover unit 14022, where

[0239] The first selection unit 14020 is configured to select the target cell with the largest average value among the channel quality measurement information of at least two target cells;

[0240] The first selection handover unit 14022 is configured to, according to the channel quality measurement information corresponding to the selected target cell, when it is determined that the channel quality of the target cell is greater than the channel quality of the serving cell, select the target cell to perform cell handover on the user equipment.

[0241] Still further, asFigure 16 Schematic structural diagram of the second embodiment of the handover determination module of the present invention shown. When the channel measurement result receiving module 1400 receives the channel quality measurement information corresponding to the maximum value of the channel quality measurement information reported by the user equipment for at least two target cells, the handover determination module 1402 includes: a second selection unit 14024 and a second selection handover unit 14026, where

[0242] The second selection unit 14024 is used to select the target cell with the largest value among the maximum values of the channel quality measurement information of at least two target cells;

[0243] The second selection handover unit 14026 is used to, according to the channel quality measurement information corresponding to the selected target cell, when it is determined that the channel quality of the target cell is greater than the channel quality of the serving cell, select the target cell to perform cell handover on the user equipment.

[0244] It can be understood that the functions of the functional modules in the cell handover device 140 can be specifically implemented according to the methods in the above method embodiments, and will not be elaborated here.

[0245] Correspondingly, an embodiment of the present invention further provides a network device, such as Figure 17 Schematic structural diagram of the first embodiment of the network device provided by the present invention shown. The network device 170 includes a receiver 1700, a memory 1702, and a processor 1704. In some embodiments of the present invention, the receiver 1700, the memory 1702, and the processor 1704 can be connected through a bus or other means, where Figure 17 Taking the connection through the bus as an example. Where

[0246] The receiver 1700 receives the reference signal resource configuration information of the target cell; the number of the reference signal resource configuration information of the target cell is greater than 1, and each of the reference signal resource configuration information corresponds to a beam with a different down-tilt angle;

[0247] Specifically, the receiver 1700 in the embodiments of the present invention may be a receiving and transmitting device such as an antenna; each set of reference signal resource configuration information of a cell corresponds to a certain down-tilt beam of the cell, that is, the information of different down-tilt beams in the cell can be reflected by the transmitted reference signal resource configuration information; more specifically, each set of reference signal resource configuration information of the cell can be generated by using different weighting factors on the signals of each set of receivers of the cell; for example, for a two-dimensional receiver configuration, beams with different down-tilts can be obtained by weighting the signals on each set of receivers, and different weighting factors can generate beams with different down-tilts. Therefore, multiple sets of reference signal resource configuration information can be configured in the cell, and each set of reference signal resource configuration information of the target cell can correspond to a precoding matrix of the target cell. Specifically, when transmitting different reference signals, different weighting factors can be used on each set of different receivers.

[0248] In more detail, the following takes the Channel State Information Reference Signal (CSI-RS) as an example for illustration, but the embodiments of the present invention are not limited to CSI-RS, and may also be other types of pilot resources such as Demodulation Reference Signal (DM RS), Sounding Reference Signal (SRS), etc. For example, the base station eNB configures CSI-RS resource 1 (i.e., a set of reference signal resource configuration information) and CSI-RS resource 2 (i.e., another set of reference signal resource configuration information) in the cell. Each CSI-RS resource may include the number of CSI-RS ports, the time-frequency position of the reference signal corresponding to each CSI-RS port, and the sequence information of the CSI-RS; by using different weighting factors on the signals of each set of receivers of the cell, the down-tilt corresponding to each CSI-RS beam in CSI-RS resource 1 is A, and the down-tilt corresponding to each CSI-RS beam in CSI-RS resource 2 is B.

[0249] After the above configuration is completed, the receiver 1700 can receive the reference signal resource configuration information of each target cell, and the number of reference signal resource configuration information of at least one target cell is greater than 1, that is, some target cells can be configured with multiple sets of reference signal resource configuration information, and some cells can be configured with only one set of reference signal resource configuration information.

[0250] The processor 1704 performs channel measurement on the target cell based on the reference signal resource configuration information; and controls the receiver 1700 to report the channel measurement result of the target cell to the serving cell.

[0251] Specifically, the result measured for each set of reference signals may be a channel quality indicator (CQI), a reference signal receiving power (RSRP), a reference signal received quality (RSRQ), a received signal strength indication (RSSI), etc. After the network device's current serving cell receives the channel measurement results of each target cell reported by the network device, it can determine whether the network device needs to perform a cell handover, and to which target cell and the serving area with the optimal downtilt beam in the target cell.

[0252] Furthermore, the receiver 1700 may also receive the notification of the reference signal resource configuration information of each target cell broadcast by the serving cell; or receive the notification of the reference signal resource configuration information of each target cell through the UE-specific signaling of the serving cell.

[0253] Specifically, the specific signaling may include the high-layer signaling of RRC or the layer-1 dynamic signaling.

[0254] Furthermore, the target cell in the embodiment of the present invention includes the serving cell of the network device, that is, the receiver 1700 may also receive the configuration information of multiple sets of reference signal resources of its own serving cell or this cell. The serving cell configures the reference signal resource configuration information through broadcasting or through UE-specific signaling;

[0255] The following takes CSI-RS as an example for illustration: The configuration of CSI-RS resource 1 and CSI-RS resource 2 may be that the serving cell is cell-specific (i.e., the configuration information is notified to the network devices in the cell through broadcasting), or UE-specific (i.e., the configuration information is sent to different network devices through UE-specific signaling, which may be the high-layer signaling of RRC (radio resource control) or the layer-1 dynamic signaling). For the UE-specific CSI-RS resource configuration method, the eNB may configure a CSI-RS resource for the UE according to the location of the UE. For example, if the location of UE1 is under the coverage of the downtilt A beam, then the eNB configures CSI-RS resource 1 for UE1, and UE1 will perform measurements and feedback according to the configured CSI-RS resource 1.

[0256] The processor 1704 may report the channel measurement results of the serving cell and the channel measurement results of at least one target cell to the serving cell, so that the serving cell can determine whether the UE needs to perform a cell handover, and to which target cell and the serving area with the optimal downtilt beam in the target cell.

[0257] It should be noted that the reference signal resource configuration information in the embodiments of the present invention may include the cell ID, precoding matrix information, time-frequency resource location information, number of ports, and pilot sequences, etc. Among them, the precoding matrix information contains the weighting factor information adopted by this set of reference signal resource configuration information, that is, the downtilt beam information corresponding to this set of reference signal resource configuration information.

[0258] Furthermore, the processor 1704 also performs any one of the following steps:

[0259] Control the receiver 1700 to report the channel quality measurement information corresponding to each set of reference signal resource configuration information configured by the target cell to the serving cell; or

[0260] Control the receiver 1700 to receive the channel quality measurement information corresponding to the average value of the channel quality measurement information reported by the user equipment for the target cell; the average value of the channel quality measurement information is the average value of the channel quality measurement information corresponding to all reference signal resource configuration information configured in the target cell; or

[0261] Control the receiver 1700 to receive the channel quality measurement information corresponding to the maximum value of the channel quality measurement information reported by the user equipment for the target cell; the maximum value of the channel quality measurement information is the maximum value of the channel quality measurement information corresponding to all reference signal resource configuration information configured in the target cell; or

[0262] Control the receiver 1700 to receive the channel quality measurement information corresponding to at least one set of reference signal resource configuration information configured by the target cell reported by the user equipment in the form of a bitmap.

[0263] It can be understood that the network device 170 in the above solution of this embodiment may be a mobile communication device (such as a mobile phone or other portable communication devices, etc.) or other network devices; the receiver 1700 in this embodiment may be a device for receiving signals such as an antenna. The functions of each functional module in the network device 170 can be specifically implemented according to the methods in the above method embodiments, and will not be elaborated here.

[0264] Correspondingly, the embodiments of the present invention also provide a network device. The following is combined with Figure 18The structural schematic diagram of the second embodiment of the network device provided by the present invention shown is described in detail as follows: The network device 180 includes: an input device 1800, an output device 1802, a memory 1804, and a processor 1806 (the number of processors 1806 in the network device can be one or more, Figure 18 and one processor is taken as an example here). In some embodiments of the present invention, the input device 1800, the output device 1802, the memory 1804, and the processor 1806 can be connected through a bus or other means, where Figure 18 taking connection through a bus as an example.

[0265] Among them, the processor 1806 performs the following steps:

[0266] According to beams with different down-tilt angles, different weighting factors are used to weight the signals on each set of antennas, respectively obtaining different reference signal resource configuration information; the reference signal resource configuration information respectively corresponds to a beam with a different down-tilt angle; at least two sets of reference signal resource configuration information are sent to the user equipment through the output device for the user equipment to perform channel measurement.

[0267] Specifically, each set of reference signal resource configuration information corresponds to a precoding matrix.

[0268] It can be understood that the network device 180 in the above solution of this embodiment can be a base station device or other network devices; the functions of each functional module in the network device 180 can be specifically implemented according to the methods in the above method embodiments, which will not be elaborated here.

[0269] Correspondingly, an embodiment of the present invention also provides a network device, as Figure 19 shown, the base station device 190 includes a receiver 1900, a memory 1902, and a processor 1904. In some embodiments of the present invention, the receiver 1900, the memory 1902, and the processor 1904 can be connected through a bus or other means, where Figure 19 taking connection through a bus as an example. Among them

[0270] the receiver 1900 receives the channel measurement result of the target cell reported by the user equipment; the channel measurement result is the channel measurement result of the user equipment for the target cell according to the received reference signal resource configuration information of the target cell, where the number of reference signal resource configuration information of the target cell received by the user equipment is greater than 1; the reference signal resource configuration information respectively corresponds to a beam with a different down-tilt angle;

[0271] The processor 1904 performs the following steps:

[0272] Based on the channel measurement results, determine whether cell handover of the user equipment is required.

[0273] Specifically, the processor 1904 further performs the following steps:

[0274] Through the receiver 1900, send at least one set of reference signal resource configuration information of the serving cell to the user equipment in a broadcast manner or through user equipment-specific signaling.

[0275] Specifically, the channel measurement results reported by the receiver 1900 from the user equipment for the target cell include any one of the following:

[0276] Receive the channel quality measurement information corresponding to each set of reference signal resource configuration information configured for the target cell reported by the user equipment; or

[0277] Receive the channel quality measurement information corresponding to the average value of the channel quality measurement information of the target cell reported by the user equipment; the average value of the channel quality measurement information is the average value of the channel quality measurement information corresponding to all the reference signal resource configuration information configured in the target cell; or

[0278] Receive the channel quality measurement information corresponding to the maximum value of the channel quality measurement information of the target cell reported by the user equipment; the maximum value of the channel quality measurement information is the maximum value among the channel quality measurement information corresponding to all the reference signal resource configuration information configured in the target cell; or

[0279] Receive the channel quality measurement information corresponding to at least one set of reference signal resource configuration information configured for the target cell reported by the user equipment in the form of a bitmap.

[0280] Further, when the receiver 1900 receives the channel measurement results of the target cell reported by the user equipment corresponding to at least two sets of reference signal resource configuration information, the processor 1904 determines whether cell handover of the user equipment is required based on the channel measurement results, including:

[0281] Based on the at least two sets of reference signal resource configuration information corresponding to the channel measurement results, when it is determined that the channel quality of the target cell is greater than the channel quality of the serving cell, select the target cell with the highest channel quality for cell handover of the user equipment.

[0282] Still further, when the receiver 1900 receives the channel quality measurement information corresponding to the average value of the channel quality measurement information of at least two target cells reported by the user equipment, the processor 1904 determines whether cell handover of the user equipment is required based on the channel measurement results, including:

[0283] Select the target cell with the largest average value of the channel quality measurement information of at least two target cells; according to the channel quality measurement information corresponding to the selected target cell, when it is determined that the channel quality of the target cell is greater than the channel quality of the serving cell, select the target cell to perform cell handover for the user equipment.

[0284] Furthermore, when the receiver 1900 receives the channel quality measurement information corresponding to the maximum value of the channel quality measurement information of at least two target cells reported by the user equipment, the processor 1904 determines whether to perform cell handover for the user equipment according to the channel measurement result, including:

[0285] Select the target cell with the largest value among the maximum values of the channel quality measurement information of at least two target cells; according to the channel quality measurement information corresponding to the selected target cell, when it is determined that the channel quality of the target cell is greater than the channel quality of the serving cell, select the target cell to perform cell handover for the user equipment.

[0286] It can be understood that the receiver 1900 in this embodiment may be a device such as an antenna for receiving signals. The functions of the functional modules in the base station device 190 can be specifically implemented according to the methods in the above method embodiments, and will not be elaborated here.

[0287] Correspondingly, an embodiment of the present invention further provides a cell handover system, as Figure 20 shown, the cell handover system 20 includes a base station device 200 and a first network device 202, where

[0288] The first network device 202 may refer to Figure 17 the network device 170 in the embodiment, and will not be elaborated here.

[0289] The base station device 200 may refer to Figure 19 the base station device 190 in the embodiment, and will not be elaborated here.

[0290] Furthermore, the cell handover system 20 in the embodiment of the present invention may further include a second network device, and this second network device may refer to Figure 18 the network device 180 in the embodiment, and will not be elaborated here.

[0291] In summary, by implementing the embodiments of the present invention, the reference signal resource configuration information of the target cell is obtained, and channel measurement is performed on the target cell according to each set of reference signal resource configuration information. Each set of reference signal resource configuration information corresponds to a beam with a different down-tilt angle, which solves the problem in the prior art that the channel quality of the beams with different down-tilt angles of the target cell cannot be obtained. The channel measurement results of the target cell with down-tilt angle beams are reported to the serving cell for cell handover processing, greatly optimizing the cell handover, improving the resource utilization rate or spectral efficiency, increasing the system capacity, and better realizing the dynamic change of the coverage of each cell.

[0292] Those of ordinary skill in the art can understand that all or part of the processes in the methods of the above embodiments can be completed by instructing relevant hardware through a computer program. The program can be stored in a computer-readable storage medium. When the program is executed, it can include the processes of the embodiments of the above methods. Among them, the storage medium can be a magnetic disk, an optical disk, a read-only memory (ROM), or a random access memory (RAM), etc.

[0293] The above-disclosed is only a preferred embodiment of the present invention, and of course, it cannot be used to limit the scope of the rights of the present invention. Those of ordinary skill in the art can understand all or part of the processes of the above embodiments and make equivalent changes according to the claims of the present invention, which still fall within the scope covered by the present invention.

Claims

1. A channel measurement method, characterized in that, Comprising: Receiving reference signal resource configuration information of multiple target cells, wherein the number of pieces of reference signal resource configuration information of at least one target cell among the multiple target cells is greater than 1, the target cells are other cells outside the serving cell, and the reference signal resource configuration information includes the ID of the cell; Performing channel measurement on the target cells based on the reference signal resource configuration information; Reporting the channel measurement results of the target cells to the serving cell.

2. The channel measurement method according to claim 1, characterized in that, The receiving reference signal resource configuration information of multiple target cells includes: Receiving a notification of the reference signal resource configuration information of multiple target cells in a broadcast manner; or, Receiving a notification of the reference signal resource configuration information of multiple target cells from the serving cell through a user equipment specific signaling.

3. The method according to claim 2, characterized in that, The user equipment specific signaling includes a high layer signaling of radio resource control or a layer 1 dynamic signaling.

4. The channel measurement method according to claim 1, characterized in that , the reporting the channel measurement results of the target cells to the serving cell includes any one of the following: Reporting the channel quality measurement information corresponding to each set of reference signal resource configuration information configured for the target cell to the serving cell; Or Reporting the channel quality measurement information corresponding to the average value of the channel quality measurement information of the target cell to the serving cell; the average value of the channel quality measurement information is the average value of the channel quality measurement information corresponding to all the reference signal resource configuration information configured in the target cell; Or Reporting the channel quality measurement information corresponding to the maximum value of the channel quality measurement information of the target cell to the serving cell; the maximum value of the channel quality measurement information is the maximum value among the channel quality measurement information corresponding to all the reference signal resource configuration information configured in the target cell; Or Reporting the channel quality measurement information corresponding to at least one set of reference signal resource configuration information configured for the target cell to the serving cell in the form of a bitmap.

5. The method according to any one of claims 1-4, characterized in that, The reference signal resource configuration information corresponds to a precoding matrix.

6. The method according to any one of claims 1-4, characterized in that, The reference signal resource configuration information corresponds to a beam with a different downtilt angle.

7. A channel measurement method, characterized in that, Comprising: Receiving the channel measurement results of the target cells reported by the terminal device; the channel measurement results are the channel measurement results obtained by the terminal device performing channel measurement on the target cells according to the received reference signal resource configuration information of multiple target cells, wherein the number of pieces of reference signal resource configuration information of at least one target cell among the multiple target cells is greater than 1, the target cells are other cells outside the serving cell, and the reference signal resource configuration information includes the ID of the cell; Judging whether cell handover of the terminal device is required according to the channel measurement results.

8. The method according to claim 7, characterized in that, The receiving reference signal resource configuration information of multiple target cells by the terminal device includes: Receiving a notification of the reference signal resource configuration information of multiple target cells in a broadcast manner; or, Receiving a notification of the reference signal resource configuration information of multiple target cells from the serving cell through a terminal device specific signaling.

9. The method according to claim 8, characterized in that, The terminal device specific signaling includes a high layer signaling of radio resource control or a layer 1 dynamic signaling.

10. The method according to any one of claims 7-9, characterized in that, The reference signal resource configuration information corresponds to a precoding matrix.

11. The method according to any one of claims 7-9, characterized in that, The reference signal resource configuration information corresponds to a beam with a different downtilt angle.

12. The method according to any one of claims 7-9, wherein, The measurement results of the cell channel measurement include: Channel quality measurement information corresponding to the reference signal resource configuration information configured for the cell; or Channel quality measurement information corresponding to the average value of the channel quality measurement information of the cell; the average value of the channel quality measurement information is the average value of the channel quality measurement information corresponding to all the reference signal resource configuration information of the cell; or Channel quality measurement information corresponding to the maximum value of the channel quality measurement information of the cell; the maximum value of the channel quality measurement information is the maximum value among the channel quality measurement information corresponding to all the reference signal resource configuration information of the cell; or Channel quality measurement information corresponding to at least one reference signal resource configuration information in the form of a bitmap.

13. According to the method described in claim 12, wherein, Judging whether cell handover needs to be performed on the terminal device according to the measurement results includes: According to at least two CSI-RS resources corresponding to the channel measurement results, when it is judged that the channel quality of a cell outside the serving cell is greater than the channel quality of the serving cell, select the cell with the highest channel quality to perform cell handover on the terminal device.

14. According to the method described in claim 12, wherein, Judging whether cell handover needs to be performed on the terminal device according to the measurement results includes: Select the cell with the largest average value among the channel quality measurement information of at least two cells outside the serving cell; According to the channel quality measurement information corresponding to the selected cell, when it is judged that the channel quality of the cell is greater than the channel quality of the serving cell, select the cell to perform cell handover on the terminal device.

15. According to the method described in claim 12, wherein, Judging whether cell handover needs to be performed on the terminal device according to the measurement results includes: Select the cell corresponding to the maximum value of the channel quality measurement information of at least two cells outside the serving cell; According to the channel quality measurement information corresponding to the selected cell, when it is judged that the channel quality of the cell is greater than the channel quality of the serving cell, select the cell to perform cell handover on the terminal device.

16. A channel measurement device, wherein, The device includes: A receiving unit, configured to receive the reference signal resource configuration information of multiple target cells, where the number of reference signal resource configuration information of at least one target cell among the multiple target cells is greater than 1, the target cells are other cells outside the serving cell, and the reference signal resource configuration information includes the ID of the cell; A processing unit, configured to perform channel measurement on the target cells based on the reference signal resource configuration information; A sending unit, configured to report the channel measurement results of the target cells to the serving cell.

17. According to the device described in claim 16, wherein, The receiving unit is specifically configured to: Receive the notification of the reference signal resource configuration information of multiple target cells in a broadcast manner; or Receive the notification of the reference signal resource configuration information of multiple target cells sent by the serving cell through user equipment-specific signaling.

18. According to the device described in claim 17, wherein, The user equipment-specific signaling includes high-layer signaling of radio resource control or layer 1 dynamic signaling.

19. According to the device described in claim 16, wherein, The sending unit is specifically configured to: Report the channel quality measurement information corresponding to each set of reference signal resource configuration information configured for the target cell to the serving cell; or Report the channel quality measurement information corresponding to the average value of the channel quality measurement information of the target cell to the serving cell; the average value of the channel quality measurement information is the average value of the channel quality measurement information corresponding to all the reference signal resource configuration information configured in the target cell. Or Report the channel quality measurement information corresponding to the maximum value of the channel quality measurement information of the target cell to the serving cell; the maximum value of the channel quality measurement information is the maximum value among the channel quality measurement information corresponding to all the reference signal resource configuration information configured in the target cell. Or Report the channel quality measurement information corresponding to at least one set of reference signal resource configuration information configured in the target cell to the serving cell in the form of a bitmap.

20. According to the device described in any one of claims 16-19, wherein, The reference signal resource configuration information corresponds to a precoding matrix.

21. According to the device described in any one of claims 16-19, wherein, The reference signal resource configuration information corresponds to a beam with a different downtilt angle.

22. A channel measurement device, wherein, The device includes: A receiving unit, configured to receive the channel measurement result of the target cell reported by the terminal device; the channel measurement result is the channel measurement result of the target cell measured by the terminal device according to the received reference signal resource configuration information of multiple target cells, where the number of reference signal resource configuration information of at least one target cell among the multiple target cells is greater than 1, the target cell is a cell other than the serving cell, and the reference signal resource configuration information includes the ID of the cell. A processing unit, configured to determine whether to perform a cell handover on the terminal device according to the channel measurement result.

23. The device according to claim 22, wherein The received reference signal resource configuration information of the multiple target cells is a notification of the reference signal resource configuration information of the multiple target cells received by the terminal device in a broadcast manner; Or, receive the notification of the reference signal resource configuration information of the multiple target cells from the serving cell through a signaling specific to the user equipment.

24. The device according to claim 23, wherein The signaling specific to the user equipment includes a high-layer signaling of radio resource control or a layer 1 dynamic signaling.

25. The device according to any one of claims 22-24, wherein The reference signal resource configuration information corresponds to a precoding matrix.

26. The device according to any one of claims 22-24, wherein The reference signal resource configuration information corresponds to a beam with a different downtilt angle.

27. The device according to any one of claims 22-24, wherein The measurement result of the cell channel measurement includes: The channel quality measurement information corresponding to the reference signal resource configuration information configured in this cell; or The channel quality measurement information corresponding to the average value of the channel quality measurement information of this cell; the average value of the channel quality measurement information is the average value of the channel quality measurement information corresponding to all the reference signal resource configuration information of this cell; or The channel quality measurement information corresponding to the maximum value of the channel quality measurement information of this cell; the maximum value of the channel quality measurement information is the maximum value among the channel quality measurement information corresponding to all the reference signal resource configuration information of this cell; or The channel quality measurement information corresponding to at least one reference signal resource configuration information in the form of a bitmap.

28. The device according to claim 27, wherein The processing unit is further configured to: According to at least two CSI-RS resources corresponding to the channel measurement result, when it is determined that the channel quality of a cell outside the serving cell is greater than the channel quality of the serving cell, select the cell with the highest channel quality to perform a cell handover on the terminal device.

29. The device according to claim 27, wherein The processing unit is further configured to: select the cell with the largest average value of the channel quality measurement information of the cells outside at least two serving cells; According to the channel quality measurement information corresponding to the selected cell, when it is determined that the channel quality of this cell is greater than the channel quality of the serving cell, select this cell to perform a cell handover on the terminal device.

30. The device according to claim 27, wherein The processing unit is further configured to: select the cell corresponding to the maximum value of the channel quality measurement information of the cells outside at least two serving cells; According to the channel quality measurement information corresponding to the selected cell, when it is determined that the channel quality of this cell is greater than the channel quality of the serving cell, select this cell to perform a cell handover on the terminal device.

31. A communication device, wherein It includes: a processor, a memory, and a transceiver; The memory is used to store computer programs; The processor is configured to execute the computer programs stored in the memory, so that the communication device executes the method described in any one of claims 1-6.

32. A communication device, wherein It includes: a processor, a memory, and a transceiver; The memory is used to store computer programs; The processor is configured to execute the computer programs stored in the memory, so that the communication device executes the method described in any one of claims 7-15.

33. A readable storage medium for storing instructions, which when executed by a processor, cause the method according to any one of claims 1-6 to be implemented.

34. A readable storage medium for storing instructions that, when executed by a processor, cause the method according to any one of claims 7-15 to be implemented.

35. A communication device, characterized in that, It includes: a processor and an interface circuit; The interface circuit is configured to receive code instructions and transmit them to the processor; The processor is used to run the code instructions to execute the method described in any one of claims 1-6.

36. A communication device, characterized in that, It includes: a processor and an interface circuit; The interface circuit is configured to receive code instructions and transmit them to the processor; The processor is used to run the code instructions to execute the method described in any one of claims 7-15.

37. A channel measurement method, characterized in that, It includes: The terminal device receives the reference signal resource configuration information of multiple target cells, where the number of reference signal resource configuration information of at least one target cell among the multiple target cells is greater than 1; the target cells are other cells outside the serving cell, and the reference signal resource configuration information includes the ID of the cell; based on the reference signal resource configuration information, perform channel measurement on the target cells; report the channel measurement results of the target cells to the serving cell; The network device receives the channel measurement results of the target cells reported by the terminal device; the channel measurement results are the channel measurement results obtained by the terminal device performing channel measurement on the target cells according to the received reference signal resource configuration information of the target cells, where the number of reference signal resource configuration information of the target cells received by the terminal device is greater than 1; where the target cells are other cells outside the serving cell, and the reference signal resource configuration information includes the ID of the cell; Judge whether it is necessary to perform a cell handover on the terminal device according to the channel measurement results.

38. A communication system comprising a device according to any one of claims 16-21 and a device according to any one of claims 22-30.

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