Electronic device and wireless communication method

Abstract

The present disclosure relates to an electronic device, a wireless communication method, and a computer-readable storage medium. The electronic device according to the present disclosure includes a processing circuit configured to perform a beam measurement process to determine channel quality between each receiving beam of the electronic device and each transmitting beam of a network side device serving the electronic device under each preset interference scenario, and to determine a receiving beam according to the channel quality under each preset interference scenario, the transmitting beam of the network side device, and the preset interference scenario in which the electronic device is located, thereby maximizing the signal-to-interference-plus-noise ratio obtained when the electronic device receives a signal using the determined receiving beam, where the preset interference scenario indicates the interference situation of the network side devices surrounding the electronic device. By using the electronic device, the wireless communication method, and the computer-readable storage medium according to the present disclosure, the user equipment can more rationally select a receiving beam and reduce inter-cell interference.

Description

[Technical field]

[0001] This application claims priority to application number 201910859932.4, entitled "Electronic device, wireless communication method and computer-readable storage medium," filed with the China Patent Office on September 11, 2019, the entire contents of which are incorporated herein by reference.

[0002] FIELD OF THE DISCLOSURE

[0002] Embodiments of the present disclosure relate generally to the field of wireless communications, and specifically to electronic devices. and Wireless communication method By law More specifically, the present disclosure relates to an electronic device as a network side device in a wireless communication system, an electronic device as a user device in a wireless communication system, and a wireless communication method executed by the network side device in a wireless communication system. and A wireless communication method implemented by a user equipment in a wireless communication system By law Regarding. [Background technology]

[0003] Beamforming is a signal pre-processing technique based on antenna arrays. In beamforming, directional beams are generated by adjusting the weight coefficients of each element in the antenna array, resulting in significant array gain. Therefore, beamforming technology has great advantages in terms of expanding coverage, improving edge throughput, and suppressing interference.

[0004] In downlink transmission, the network side equipment selects a transmission beam from multiple transmission beams to transmit downlink information, and when the user equipment has multiple reception beams, it needs to select an appropriate reception beam to receive the downlink information transmitted by the network side equipment in order to obtain a beamforming gain. In a conventional reception beam selection solution, the user equipment can select a reception beam based on the RSRP (Reference Signal Receiving Power) of the cell. That is, the user equipment selects the reception beam with the maximum reception power to receive the downlink information. Since the user equipment does not consider the interference problem between cells, it may receive interference from adjacent cells when receiving downlink information, which may result in a decrease in communication performance. Interference between cells can be eliminated by silence, that is, when the transmission beam of one cell interferes with the user equipment of the adjacent cell, the network side equipment transmitting the interference signal or the user equipment that is interfered with becomes silent in a short time, thereby reducing the interference, but this method may waste resources.

[0005] Therefore, it is necessary to propose a technical solution that can enable user equipment to select receiving beams more rationally and reduce interference between cells. Summary of the Invention [Means for solving the problem]

[0006] This section provides a general overview of the disclosure, but is not an exhaustive disclosure of the entire scope or every feature.

[0007] The present disclosure provides an electronic device that enables a user equipment to more rationally select a receiving beam and reduce interference between cells. and Wireless communication method Law The purpose is to provide.

[0008] According to one aspect of the present invention, an electronic device is provided, the electronic device including a processing circuit configured to perform a beam measurement process to determine a channel quality between each receiving beam of the electronic device and each transmitting beam of a network side equipment serving the electronic device in each preset interference scenario, and to determine a receiving beam according to the channel quality in each preset interference scenario, the transmitting beam of the network side equipment, and the preset interference scenario in which the electronic device is located, so that a signal-to-interference-plus-noise ratio obtained when the electronic device receives a signal using the determined receiving beam is maximized, the preset interference scenario indicating the interference situation of network side equipment surrounding the electronic device to the electronic device.

[0009] According to another aspect of the present disclosure, there is provided an electronic device functioning as a network side device, the electronic device including a processing circuit configured to configure a non-zero power channel state information-reference signal (NZP CSI-RS) resource set and a zero power channel state information reference signal (ZP CSI-RS) resource set for the user equipment so that the user equipment performs a beam measurement process, so that the user equipment determines a channel quality between each receiving beam of the user equipment and each transmitting beam of the electronic device in each preset interference scenario, and transmits to the user equipment a transmitting beam of the electronic device and a preset interference scenario in which the user equipment is located, so that the user equipment determines a receiving beam according to the channel quality in each preset interference scenario, the transmitting beam of the electronic device, and the preset interference scenario in which the user equipment is located, so that a signal-to-interference plus noise ratio obtained when the user equipment receives a signal using the determined receiving beam is maximized, and the preset interference scenario indicates an interference situation of other network side devices adjacent to the electronic device to the user equipment.

[0010] According to another aspect of the present disclosure, there is provided a wireless communication method performed by an electronic device, the wireless communication method including: executing a beam measurement process to determine a channel quality between each receiving beam of the electronic device and each transmitting beam of a network side device serving the electronic device in each preset interference scenario; and determining a receiving beam according to the channel quality in each preset interference scenario, the transmitting beam of the network side device, and the preset interference scenario in which the electronic device is located, so that a signal-to-interference plus noise ratio obtained when the electronic device receives a signal using the determined receiving beam is maximized, and the preset interference scenario indicates an interference situation of the network side device surrounding the electronic device to the electronic device.

[0011] According to another aspect of the present disclosure, there is provided a wireless communication method executed by an electronic device functioning as a network side device, the wireless communication method including: configuring an NZP CSI-RS resource set and a ZP CSI-RS resource set for the user equipment so that the user equipment performs a beam measurement process, thereby determining a channel quality between each receiving beam of the user equipment and each transmitting beam of the electronic device in each preset interference scenario; and transmitting a transmitting beam of the electronic device and a preset interference scenario in which the user equipment is located to the user equipment, so that the user equipment determines a receiving beam according to the channel quality in each preset interference scenario, the transmitting beam of the electronic device, and the preset interference scenario in which the user equipment is located, thereby maximizing a signal-to-interference-plus-noise ratio obtained when the user equipment receives a signal using the determined receiving beam, wherein the preset interference scenario indicates an interference situation of other network side devices adjacent to the electronic device to the user equipment.

[0012] According to another aspect of the present disclosure, there is provided a computer readable storage medium comprising executable computer instructions that, when executed by a computer, cause the computer to perform a wireless communication method as described in the present disclosure.

[0013] By using the electronic device, the wireless communication method and the computer-readable storage medium according to the present disclosure, the user equipment determines a receiving beam according to the channel quality in each preset interference scenario, the transmission beam of the network side equipment, and the preset interference scenario in which the user equipment is located, so that the signal-to-interference plus noise ratio of the receiving beam can be maximized. In this way, the user equipment can select the beam with the maximum signal-to-interference plus noise ratio as the receiving beam, and the inter-cell interference can be reduced.

[0014] Further scope of applicability will become apparent from the description provided herein.The description and specific examples in this summary are for purposes of illustration only and are not intended to limit the scope of the present disclosure. [Brief description of the drawings]

[0015] The drawings described herein are for the purpose of illustrating only selected embodiments, not all possible implementations, and are not intended to limit the scope of the present disclosure.

[0016] [Figure 1A] FIG. 1A is a schematic diagram illustrating the general beam pairing process. [Figure 1B] FIG. 1B is a schematic diagram showing the precise beam pairing process. [Figure 2A] FIG. 2A is a schematic diagram illustrating an interference scenario according to an embodiment of the present disclosure. [Figure 2B] FIG. 2B is a schematic diagram illustrating an interference scenario according to an embodiment of the present disclosure. [Diagram 3] FIG. 3 is a block diagram illustrating a configuration example of an electronic device on a user side according to an embodiment of the present disclosure. [Figure 4A]FIG. 4A is a schematic diagram showing the selection of a receive beam in the prior art. [Figure 4B] FIG. 4B is a schematic diagram illustrating receive beam selection according to an embodiment of the present disclosure. [Diagram 5] FIG. 5 is a schematic diagram illustrating a preset interference scenario according to an embodiment of the present disclosure. [Figure 6] FIG. 6 is a schematic diagram illustrating a process of obtaining an interference signal power matrix for a particular preset interference scenario according to an embodiment of the present disclosure. [Figure 7A] FIG. 7A is a schematic diagram illustrating instructing a transmission beam by a Transmission Configuration Indication (TCI) according to an embodiment of the present disclosure. [Figure 7B] FIG. 7B is a schematic diagram illustrating indicating a transmit beam and a preset interference scenario by a TCI according to an embodiment of the present disclosure. [Figure 8] FIG. 8 is a block diagram illustrating a configuration example of an electronic device on the network side according to an embodiment of the present disclosure. [Figure 9] FIG. 9 is a schematic diagram illustrating reference signal coordinated signaling according to an embodiment of the present disclosure. [Figure 10] FIG. 10 is a schematic diagram illustrating interference beam time information according to an embodiment of the present disclosure. [Figure 11] FIG. 11 is a signaling flow diagram illustrating a beam measurement process according to an embodiment of the present disclosure. [Figure 12] FIG. 12 is a signaling flowchart illustrating determination of a receive beam according to an embodiment of the present disclosure. [Figure 13] FIG. 13 is a flow chart illustrating a wireless communication method performed by a user-side electronic device according to an embodiment of the present disclosure. [Figure 14] FIG. 14 is a flowchart illustrating a wireless communication method performed by a network-side electronic device according to an embodiment of the present disclosure. [Figure 15]FIG. 15 is a block diagram showing a first example of a schematic configuration of an eNB (Evolved Node B). [Figure 16] FIG. 16 is a block diagram showing a second example of a schematic configuration of an eNB. [Figure 17] FIG. 17 is a block diagram showing an example of a schematic configuration of a smartphone. [Figure 18] FIG. 18 is a block diagram showing an example of a schematic configuration of a car navigation system.

[0017] While the present disclosure is susceptible to various modifications and alternatives, specific embodiments thereof are shown by way of example in the accompanying drawings and will herein be described in detail. It is to be understood that the description of specific embodiments herein is not intended to limit the disclosure to the particular forms disclosed, but on the contrary, the disclosure is intended to cover all modifications, equivalents, and substitutions falling within the spirit and scope of the present disclosure. Corresponding reference characters indicate corresponding parts throughout the several views. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0018] Examples of the present disclosure are more fully described with reference to the accompanying drawings, in which: The following description is merely exemplary in nature and is in no way intended to limit the present disclosure, its application, or uses.

[0019] Exemplary examples are provided to make the disclosure more detailed and fully convey the scope of the disclosure to those skilled in the art. Various specific details, such as examples of specific components, devices, and methods, are described to provide a thorough understanding of the embodiments of the disclosure. It will be apparent to those skilled in the art that specific details are not necessarily required and that the exemplary embodiments can be implemented in many different forms and should not be construed as limiting the scope of the disclosure. In some exemplary embodiments, well-known processes, well-known structures, and well-known technologies are not described in detail.

[0020] The explanation will be given in the following order. 1. Problem Description 2. Example of the configuration of the user's electronic device 3. Example of the configuration of electronic devices on the network side 4. Method Example 5. Application Examples

[0021] <1. Problem description> FIG. 1A is a schematic diagram showing a schematic beam pairing process, and FIG. 1B is a schematic diagram showing a precise beam pairing process. As shown in FIG. 1A, when a user equipment first accesses, a transmit / receive beam pair can be roughly established between the user equipment and the base station through the measurement of the base station by the user equipment, and the beam of the base station is usually wide to shorten the beam search period during the process of the user equipment first accessing. Through the schematic beam pairing process, both the base station and the user equipment can obtain the approximate direction of the signal, and according to this direction, the base station and the user equipment can determine several candidate beams close to this direction, and further refine the transmit / receive beam pair to achieve precise beam pairing. As shown in FIG. 1B, the base station has M beams, and the user equipment has N beams. In the precise beam pairing process, the base station uses a beam with a narrow width and high gain.

[0022] As described above, the traditional beam management process does not consider the interference between cells. In fact, since the receiving beam of the user equipment is often wide, the user equipment is likely to receive interference signals from the network side equipment of the adjacent cell, which results in a significant reduction in the SINR (Signal to Interference plus Noise Ratio) of the signal received by the user equipment.

[0023] FIG. 2A is a schematic diagram showing an interference scenario according to an embodiment of the present disclosure. As shown in FIG. 2A, a user of base station 1 receives a signal from base station 1, and the signal is a useful signal. At the same time, if the transmission beam of base station 2 is also directed to this user, and the transmission power of base station 2 is large, base station 2 may strongly interfere with this user, and the signal is an interference signal. FIG. 2B is a schematic diagram showing an interference scenario according to another embodiment of the present disclosure. As shown in FIG. 2B, a user of base station 1 receives a signal from base station 1, and the signal is a useful signal. At the same time, the user of base station 1 receives a reflected signal from base station 2, so that this user is interfered with by base station 2. Although the interference signal from base station 2 is a non-direct interference signal, it still affects the quality of the user's received signal, resulting in a performance degradation.

[0024] For such a scenario, the present disclosure proposes an electronic device in a wireless communication system, a wireless communication method performed by the electronic device in the wireless communication system, and a computer-readable storage medium, which allows a user equipment to more rationally select a receiving beam by considering the interference of adjacent cells in the beam management process, and reduces the interference between cells.

[0025] The network side equipment according to the present disclosure may be any type of TRP (Transmit and Receive Port). In addition, the network side equipment described in the present disclosure may be, for example, a base station device such as an eNB, a gNB (a base station of a fifth generation communication system), a macro base station, or a small base station.

[0026] The user equipment according to the present disclosure may be a mobile terminal (e.g., a smartphone, a tablet personal computer (PC), a notebook PC, a portable game terminal, a portable / dongle mobile router, and a digital photographing device, etc.) or an in-vehicle terminal (e.g., a car navigation device, etc.). The user equipment may also be realized as a terminal performing machine-to-machine (M2M) communication (also called a machine-type communication (MTC) terminal). In addition, the user equipment may be a wireless communication module (e.g., an integrated circuit module including a single chip) mounted on each of the above terminals.

[0027] <2. Example of configuration of user's electronic device> 3 is a block diagram showing a configuration example of an electronic device 300 according to an embodiment of the present disclosure. The electronic device 300 here may be a user device in a wireless communication system.

[0028] As shown in FIG. 3, the electronic device 300 may include a measurement section 310 and a receive beam determination section 320.

[0029] Here, each unit of the electronic device 300 can be included in a processing circuit. The electronic device 300 may include one processing circuit or multiple processing circuits. Furthermore, the processing circuit may include various individual functional units to perform various different functions and / or operations. These functional units may be physical or logical entities, and units with different names may be realized by the same physical entity.

[0030] According to an embodiment of the present disclosure, the measurement unit 310 can perform a beam measurement process to determine the channel quality between each receiving beam of the electronic device 300 and each transmitting beam of the network side device serving the electronic device 300 in each preset interference scenario.

[0031] According to an embodiment of the present disclosure, the receiving beam determination unit 320 determines a receiving beam based on the channel quality in each preset interference scenario, the transmitting beam of the network side equipment, and the preset interference scenario in which the electronic equipment 300 is located, thereby maximizing the signal-to-interference plus noise ratio obtained when the electronic equipment 300 receives a signal using the determined receiving beam.

[0032] In the embodiment of the present disclosure, the preset interference scenario indicates the interference situation of the network side devices around the electronic device 300 to the electronic device 300. Here, the network side devices around the electronic device 300 include the network side devices in the cells adjacent to the cell to which the electronic device 300 belongs. The wireless communication system to which the electronic device 300 belongs may be a homogeneous wireless communication system or a heterogeneous wireless communication system. For example, the network side devices in the cells adjacent to the cell to which the electronic device 300 belongs and the network side devices in the cell to which the electronic device 300 belongs may both be macro base stations. Also, for example, the network side devices in the cells adjacent to the cell to which the electronic device 300 belongs may be macro base stations, and the network side devices in the cell to which the electronic device 300 belongs may be small base stations. The preset interference scenarios are ideal interference scenarios, and each preset interference scenario includes a determination that each network side device around the electronic device 300 "interferes with the electronic device 300" and "does not interfere with the electronic device 300". Assuming that there are Q cells adjacent to the cell to which the electronic device 300 belongs, there are two situations for each network side device in the adjacent cell: a situation in which the network side device interferes with the electronic device 300, and a situation in which the network side device does not interfere with the electronic device 300. Therefore, theoretically, there are K=2Q preset interference scenarios. For example, assuming that there is one cell adjacent to the cell to which the electronic device 300 belongs, the first preset interference scenario is, for example, that the network side device in the adjacent cell interferes with the electronic device 300, and the second preset interference scenario is, for example, that the network side device in the adjacent cell does not interfere with the electronic device 300.

[0033] FIG. 4A is a schematic diagram showing the selection of a receiving beam in the prior art. In FIG. 4A, a user of base station 1 is served by base station 1, and the downlink signal transmitted by base station 1 to the user of base station 1 is a useful signal, and the downlink signal transmitted by base station 2 of the neighboring cell is an interference signal for the user of base station 1. In the conventional receiving beam selection solution, the user equipment can select a receiving beam based on the RSRP of the cell. That is, the user equipment selects the receiving beam with the largest receiving power to receive downlink information. As shown in FIG. 4A, the user of base station 1 selects the beam represented by the black filled oval as the receiving beam based on the RSRP. Since the interference problem of the neighboring cell is not considered, it may be subject to strong interference from base station 2, which results in a deterioration of the system performance.

[0034] FIG. 4B is a schematic diagram showing the selection of a receiving beam according to an embodiment of the present disclosure. According to an embodiment of the present disclosure, the user equipment can select a receiving beam based on the signal-to-interference-plus-noise ratio. That is, the user equipment selects the receiving beam with the largest SINR to receive downlink information. As shown in FIG. 4B, the user of base station 1 selects the beam represented by the black filled oval as the receiving beam based on the SINR. Although the receiving power of the beam is not the largest, it takes into account the interference problem of the neighboring cell, so that the interference signal from base station 2 can be avoided and the system performance can be improved.

[0035] According to an embodiment of the present disclosure, the beam measurement process performed by the measurement unit 310 includes a measurement process on an NZP CSI-RS resource set and a measurement process on a ZP CSI-RS resource set, or the beam measurement process performed by the measurement unit 310 includes a measurement process on an SSB (synchronization signal block) resource set and a measurement process on a ZP CSI-RS resource set.

[0036] According to an embodiment of the present disclosure, the measurement unit 310 determines a useful signal power matrix by measuring on the NZP CSI-RS resource set or the SSB resource set, and each element in the useful signal power matrix indicates a useful signal power obtained when the network side device transmits a signal using a specific transmission beam and the electronic device receives the signal using a specific reception beam in each preset interference scenario. Hereinafter, the embodiments of the present disclosure will be described using the NZP CSI-RS resource, and these embodiments are also applicable to the SSB resource.

[0037] According to an embodiment of the present disclosure, the NZP CSI-RS resources in the NZP CSI-RS resource set and the transmission beam of the network side device have a corresponding relationship. Specifically, the NZP CSI-RS resources and the transmission beam of the network side device may have a one-to-one relationship. That is, each NZP CSI-RS resource has a corresponding unique transmission beam, and different NZP CSI-RS resources correspond to different transmission beams. In addition, the NZP CSI-RS resources and the transmission beam of the network side device may have a many-to-one relationship. That is, each NZP CSI-RS resource has a corresponding unique transmission beam, and different NZP CSI-RS resources can correspond to the same transmission beam.

[0038] According to an embodiment of the present disclosure, as shown in Fig. 3, the electronic device 300 may further include a communication unit 330 for receiving configuration information including a correspondence relationship between the NZP CSI-RS resource and the transmission beam from the network side device. Therefore, the electronic device 300 may determine the correspondence relationship between the NZP CSI-RS resource and the transmission beam according to the configuration information from the network side device. Note that, as shown in Fig. 3, the electronic device 300 may further include a storage unit 340 for storing the correspondence relationship between the NZP CSI-RS resource and the transmission beam.

[0039] According to an embodiment of the present disclosure, the measurement unit 310 determines a useful signal power matrix by measuring on the NZP CSI-RS resource set, where the useful signal power matrix is ​​independent of the preset interference scenario, that is, for any preset interference scenario, the useful signal power matrix is ​​the same.

[0040] According to an embodiment of the present disclosure, assuming that the network side device has M transmission beams and the electronic device 300 has N reception beams, the useful signal power matrix P is an M×N dimensional matrix, in which element Pi,j (1≦i≦M, 1≦j≦N) indicates the useful signal power obtained when the network side device transmits a signal using the i-th transmission beam and the electronic device 300 receives a signal using the j-th reception beam. The useful signal power matrix P is as follows:

[0041]

number

[0042] According to an embodiment of the present disclosure, the user equipment can determine the above useful signal power matrix P by measuring on each NZP CSI-RS resource in the NZP CSI-RS resource set using each of the N receive beams to complete M×N measurements.

[0043] According to an embodiment of the present disclosure, the measurement unit 310 can measure on the ZP CSI-RS resource set to determine the interference signal power obtained when the electronic device 300 receives a signal using each receive beam in each preset interference scenario.

[0044] According to an embodiment of the present disclosure, the ZP CSI-RS resources in a ZP CSI-RS resource set and the preset interference scenario have a corresponding relationship. Specifically, the ZP CSI-RS resource set and the preset interference scenario may have a one-to-one relationship. That is, each ZP CSI-RS resource set has a corresponding unique preset interference scenario, and different ZP CSI-RS resource sets correspond to different preset interference scenarios. In other words, a preset interference scenario corresponds to multiple ZP CSI-RS resources in one ZP CSI-RS resource set.

[0045] According to an embodiment of the present disclosure, the electronic device 300 can receive configuration information including a correspondence relationship between the ZP CSI-RS resource set and the preset interference scenario from the network side device via the communication unit 330. Therefore, the electronic device 300 can determine the correspondence relationship between the ZP CSI-RS resource set and the preset interference scenario according to the configuration information from the network side device. Note that the storage unit 340 can store the correspondence relationship between the ZP CSI-RS resource set and the preset interference scenario.

[0046] Fig. 5 is a schematic diagram showing preset interference scenarios according to an embodiment of the present disclosure. In Fig. 5, base station 1 is a serving base station of a user, and base station 2 and base station 3 are base stations in cells adjacent to base station 1, so that Fig. 5 shows four examples of preset interference scenarios. Preset interference scenario 1 indicates a scenario in which neither base station 2 nor base station 3 interferes with a user, preset interference scenario 2 indicates that base station 2 interferes with a user but base station 3 does not interfere with a user, preset interference scenario 3 indicates that base station 3 interferes with a user but base station 2 does not interfere with a user, and preset interference scenario 4 indicates that both base station 2 and base station 3 interfere with a user.

[0047] According to an embodiment of the present disclosure, the ZP CSI-RS resource set and the preset interference scenario may have a corresponding relationship. For example, in the embodiment shown in Figure 5, there are four ZP CSI-RS resource sets, which may correspond to four preset interference scenarios respectively.

[0048] According to an embodiment of the present disclosure, the measurement unit 310 can determine an interference signal power matrix for each preset interference scenario by measuring on the ZP CSI-RS resource set, where each element in the interference signal power matrix indicates an interference signal power obtained when the electronic device 300 receives a signal using each receiving beam, where the interference signal power matrix is ​​for a specific preset interference scenario, i.e., the number of interference signal power matrices is the same as the number of preset interference scenarios.

[0049] Assuming that the number of preset interference scenarios is K, the matrix I k denote the interference signal power matrix of the kth preset interference scenario, where 1≦k≦K.

[0050] Similarly, assuming that the electronic device 300 has N receive beams, I k is a 1×N dimensional matrix, where element i t k (1≦t≦N) denotes the interference signal power obtained when the electronic device 300 receives a signal using the t-th receiving beam in the k-th preset interference scenario. k is as follows.

[0051]

number

[0052] According to an embodiment of the present disclosure, for any preset interference scenario, in a ZP CSI-RS resource set corresponding to the preset interference scenario, a network side device interfering with the electronic device 300 in the preset interference scenario transmits an NZP CSI-RS signal using a transmission beam interfering with the electronic device 300, and a network side device not interfering with the electronic device 300 transmits a ZP CSI-RS signal using an arbitrary transmission beam. Then, the electronic device 300 completes N measurements by measuring in the ZP CSI-RS resource set corresponding to the preset interference scenario using each reception beam, and obtains an interference signal power matrix I k can be determined.

[0053] 6 is a schematic diagram illustrating a process of obtaining an interference signal power matrix for a specific preset interference scenario according to an embodiment of the present disclosure. In FIG. 6, it is assumed that base station 1 is a serving base station for a user equipment, and base station 2 is a neighboring base station of base station 1. Here, if it is assumed that base station 2 interferes with a user in the preset interference scenario, in the ZP CSI-RS resource set corresponding to the preset interference scenario, base station 2 transmits an NZP CSI-RS signal using a transmission beam interfering with the user, and base station 1 transmits a ZP CSI-RS signal using an arbitrary transmission beam. As shown in FIG. 6, a user uses a first receiving beam to measure on a ZP CSI-RS resource set corresponding to the preset interference scenario, i.e., performs a first measurement to obtain a first element in an interference signal power matrix, a user uses a second receiving beam to measure on a ZP CSI-RS resource set corresponding to the preset interference scenario, i.e., performs a second measurement to obtain a second element in an interference signal power matrix, ..., a user uses an Nth receiving beam to measure on a ZP CSI-RS resource set corresponding to the preset interference scenario, i.e., performs an Nth measurement to obtain an Nth element in an interference signal power matrix. Thus, the user can obtain an interference signal power matrix corresponding to the preset interference scenario. The user can obtain interference signal power matrices corresponding to other preset interference scenarios in a similar manner.

[0054] As described above, in the beam measurement process, the measurement unit 310 obtains one useful signal power matrix P and K interference signal power matrices.

[0055] According to an embodiment of the present disclosure, the electronic device 300 may receive transmission beam information from the network side device via the communication unit 330. As shown in Fig. 3, the electronic device 300 may further include a transmission beam determination unit 350 for determining a transmission beam of the network side device according to the transmission beam information transmitted by the network side device. Here, the transmission beam of the network side device indicates a transmission beam actually used when the network side device transmits downlink information, and the network side device may transmit the downlink information using one or more transmission beams.

[0056] For example, according to an embodiment of the present disclosure, after the measurement unit 310 determines the useful signal power matrix P, the electronic device 300 transmits all or some of the elements of the useful signal power matrix P to the network side equipment, and the network side equipment can determine the transmission beam to be actually used according to all or some of the elements of the useful signal power matrix P.

[0057] According to an embodiment of the present disclosure, the electronic device 300 may also receive information on a preset interference scenario in which the electronic device 300 is located from the network side device via the communication unit 330. As shown in Fig. 3, the electronic device 300 may further include a scenario determination unit 360 for determining a preset interference scenario in which the electronic device 300 is located according to the information on the preset interference scenario in which the electronic device 300 is located transmitted by the network side device. Here, the preset interference scenario in which the electronic device 300 is located indicates a preset interference scenario in which the electronic device 300 is actually located.

[0058] According to an embodiment of the present disclosure, the transmission beam determination unit 350 can determine the transmission beam of the network side device according to the TCI status information from the network side device.

[0059] Fig. 7A is a schematic diagram showing how to indicate a transmission beam by TCI status information according to an embodiment of the present disclosure. In Fig. 7A, it is assumed that the network side device uses NT transmission beams, where NT is a positive integer. As shown in Fig. 7A, since each NZP CSI-RS resource or each SSB resource corresponds to one transmission beam, the TCI status received by the electronic device 300 includes NT NZP CSI-RS resource IDs or NT SSB resource IDs for respectively indicating the NT transmission beams.

[0060] The scenario determining unit 360 can determine a preset interference scenario in which the electronic device 300 is located, according to DCI (Downlink Control Information) from a network side device.

[0061] According to an embodiment of the present disclosure, the transmission beam determination unit 350 can determine the transmission beam of the network side device according to the TCI status information from the network side device, and the scenario determination unit 360 can also determine the preset interference scenario in which the electronic device 300 is located according to the TCI status information from the network side device. That is, the TCI status information has a corresponding relationship between the transmission beam of the network side device and the preset interference scenario in which the electronic device 300 is located, and may indicate the transmission beam of the network side device or the preset interference scenario in which the electronic device 300 is located.

[0062] FIG. 7B is a schematic diagram showing an example of indicating a transmission beam and a preset interference scenario by TCI status information according to an embodiment of the present disclosure. In FIG. 7B, it is assumed that the network side device uses NT transmission beams, where NT is a positive integer. As shown in FIG. 7B, the TCI status received by the electronic device 300 includes not only NT NZP CSI-RS resource IDs or NT SSB resource IDs for respectively indicating the NT transmission beams, but also ZP CSI-RS resource IDs for indicating the preset interference scenario. The ZP CSI-RS resource here may include a plurality of ZP CSI-RS resources in a ZP CSI-RS resource set corresponding to the preset interference scenario.

[0063] As described above, the measurement unit 310 determines the signal quality between each reception beam of the electronic device 300 and each transmission beam of the network side device serving the electronic device 300 in each preset interference scenario, and obtains one useful signal power matrix P and K interference signal power matrices I k The transmission beam determination unit 350 can determine one or more transmission beams actually used by the network side device, and the scenario determination unit 360 can determine a preset interference scenario in which the electronic device 300 actually exists. Next, the reception beam determination unit 320 determines a reception beam according to the channel quality determined by the measurement unit 310, the transmission beam of the network side device, and the preset interference scenario in which the electronic device 300 exists, so that the signal-to-interference-plus-noise ratio obtained when the electronic device 300 receives a signal using the determined reception beam can be maximized.

[0064] The operation of receiving beam determining section 320 will now be described in detail.

[0065] According to an embodiment of the present disclosure, the receiving beam determination unit 320 can determine the useful signal power obtained when the electronic device 300 receives a signal using each receiving beam according to the transmitting beam of the network side device and the useful signal power matrix. In other words, for the m-th transmitting beam (1≦m≦M) among the M transmitting beams of the network side device, the useful signal power obtained when the electronic device 300 receives a signal using each of the N receiving beams is p m1 , p m2 , …, p mN , ie, the N elements in the mth row in the useful signal power matrix.

[0066] According to an embodiment of the present disclosure, the receiving beam determination unit 320 can determine interference signal power obtained when the electronic device 300 receives a signal using each receiving beam according to the preset interference scenario in which the electronic device 300 is located. That is, when the preset interference scenario in which the electronic device 300 is located is the k-th preset interference scenario among the K preset interference scenarios, the interference signal power obtained when the electronic device 300 receives a signal using each of the N receiving beams is i 1k , i 2k , …, i N k i.e., the N elements in the interference signal power matrix Ik.

[0067] According to an embodiment of the present disclosure, the receiving beam determination unit 320 can determine a signal-to-interference plus noise ratio according to a useful signal power and an interference signal power obtained when the electronic device 300 receives a signal using each receiving beam. In other words, when the preset interference scenario in which the electronic device 300 is located is the kth preset interference scenario among the K preset interference scenarios, and the network side device uses the mth transmission beam among the M transmission beams, the signal-to-interference plus noise ratio SINR obtained when the electronic device 300 receives a signal using the nth reception beam among the N reception beams is n is as follows:

[0068]

number

[0069] P noise denotes thermal noise, and P m,n indicates the useful signal power when the network side device transmits downlink information using the m-th transmission beam and the electronic device 300 receives the downlink information using the n-th reception beam, that is, the element in the m-th row and n-th column in the useful signal power matrix P, and i n k is the interference signal power when the electronic device 300 receives downlink information using the nth receiving beam in the kth preset interference scenario, that is, the interference signal power matrix I k Indicates the nth element in .

[0070] According to an embodiment of the present disclosure, the receiving beam determiner 320 may select NR (NR is a positive integer) receiving beams with the maximum signal-to-interference-plus-noise ratio as beams for receiving downlink information. When the receiving beam determiner 320 selects one receiving beam, the receiving beam determiner 320 may select beam n for receiving downlink information. * is as follows:

[0071]

number

[0072] JPEG0007639812000005.jpg27170

[0073] JPEG0007639812000006.jpg55170

[0074] As a result, the preset interference scenario in which the electronic device 300 is located is the k-th preset interference scenario among the K preset interference scenarios, and the network side devices are the m1-th, m2-th, . . . , m1-th, . . . NT1. When the nth transmission beam is used, the signal-to-interference-plus-noise ratio SINR obtained when the electronic device 300 receives a signal using the nth reception beam among the N reception beams is n is as follows:

[0075]

number

[0076] Among them, P. noise denotes thermal noise, and i n k is the interference signal power when the electronic device 300 receives downlink information using the nth receiving beam in the kth preset interference scenario, that is, the interference signal power matrix I k Indicates the nth element in .

[0077] According to an embodiment of the present disclosure, the receiving beam determiner 320 can select NR (NR is a positive integer) receiving beams with the maximum signal-to-interference-plus-noise ratio as beams for receiving downlink information. When the receiving beam determiner 320 selects one receiving beam, the beam n* for receiving downlink information is as follows:

[0078]

number

[0079] JPEG0007639812000009.jpg27170

[0080] Therefore, according to the embodiment of the present disclosure, the electronic device 300 measures the interference signal power for each preset interference scenario, so that the electronic device 300 can determine the interference signal power when receiving a signal using each reception beam according to the preset interference scenario in which the electronic device 300 is actually located. Note that, according to the embodiment of the present disclosure, the electronic device 300 can select a reception beam according to the signal-to-interference plus noise ratio, so that the interference of adjacent cells is taken into consideration, and thus, when the electronic device 300 receives downlink information using the selected reception beam, the signal-to-interference plus noise ratio is large, so that inter-cell interference can be avoided or reduced.

[0081] <3. Example of the configuration of electronic devices on the network side> FIG. 8 is a block diagram showing a configuration of an electronic device 800 functioning as a network side device in a wireless communication system according to an embodiment of the present disclosure.

[0082] As shown in FIG. 8, the electronic device 800 may include a configuration unit 810, a transmission beam determination unit 820, a scenario determination unit 830, and a communication unit 840.

[0083] Here, each unit of the electronic device 800 can be included in a processing circuit. The electronic device 800 may include one processing circuit or multiple processing circuits. Furthermore, the processing circuit may include various individual functional units to perform various different functions and / or operations. These functional units may be physical or logical entities, and units with different names may be realized by the same physical entity.

[0084] According to an embodiment of the present disclosure, the configuration unit 810 may configure an NZP CSI-RS resource set and a ZP CSI-RS resource set for a user equipment, so that the user equipment performs a beam measurement process, whereby the user equipment may perform a beam measurement process to determine channel quality between each receiving beam of the user equipment and each transmitting beam of the electronic device 800 in each preset interference scenario, as described above.

[0085] According to an embodiment of the present disclosure, the transmit beam determination unit 820 determines a transmit beam via which the electronic device 800 transmits downlink information to a user equipment, and the electronic device 800 can then transmit the transmit beam of the electronic device to the user equipment via the communication unit 840.

[0086] According to an embodiment of the present disclosure, the scenario determination unit 830 may determine a preset interference scenario in which the user equipment is located. Here, the preset interference scenario in which the user equipment is located is an actual interference scenario in which the user equipment is located. Note that the electronic device 800 may transmit the preset interference scenario in which the user equipment is located to the user equipment via the communication unit 840.

[0087] As described above, the user equipment determines a receiving beam based on the channel quality in each preset interference scenario, the transmitting beam of the electronic device 800, and the preset interference scenario in which the user equipment is located, thereby maximizing the signal-to-interference-plus-noise ratio obtained when the user equipment receives the determined receiving beam signal.

[0088] According to an embodiment of the present disclosure, the preset interference scenario indicates an interference situation of other network side devices adjacent to the electronic device 800 to the user equipment.

[0089] As described above, according to an embodiment of the present disclosure, the electronic device 800 can configure an NZP CSI-RS resource set and a ZP CSI-RS resource set for the user equipment so that the user equipment performs a beam measurement process, and can transmit to the user equipment a preset interference scenario in which the user equipment is located and a transmission beam used by the electronic device 800. In this way, the user equipment can determine a receiving beam according to the channel quality in each preset interference scenario, the transmission beam of the electronic device 800, and the preset interference scenario in which the user equipment is located, so that the signal-to-interference plus noise ratio of the receiving beam can be maximized. In this way, the user equipment can select a beam with a maximum signal-to-interference plus noise ratio as a receiving beam, thereby reducing inter-cell interference.

[0090] According to an embodiment of the present disclosure, the configuration unit 810 configures an NZP CSI-RS resource set for a user equipment, so that the NZP CSI-RS resources in the NZP CSI-RS resource set and the transmission beam of the electronic device 800 can have a corresponding relationship.

[0091] According to an embodiment of the present disclosure, the NZP CSI-RS resources in the NZP CSI-RS resource set and the transmission beams of the electronic device 800 may have a one-to-one relationship or a many-to-one relationship. As shown in FIG. 8, the electronic device 800 may further include a storage unit 850 for storing the correspondence relationship between the NZP CSI-RS resources in the NZP CSI-RS resource set and the transmission beams of the electronic device 800. In this way, both the electronic device 800 and the user equipment can recognize and store the correspondence relationship between the NZP CSI-RS resources in the NZP CSI-RS resource set and the transmission beams of the electronic device 800. That is, for any NZP CSI-RS resource ID, a unique transmission beam corresponding thereto can be determined.

[0092] According to an embodiment of the present disclosure, the electronic device 800 can configure an NZP CSI-RS resource set for the user equipment and transmit the NZP CSI-RS at the time-frequency location of the NZP CSI-RS resource configured for the user equipment. In this way, the user equipment determines a useful signal power matrix P by measuring on the NZP CSI-RS resource set, and each element in the useful signal power matrix indicates the useful signal power obtained when the electronic device 800 transmits a signal using a specific transmit beam and the user equipment receives the signal using a specific receive beam in each preset interference scenario. The content of this part has been described in detail above and will not be described again here.

[0093] According to an embodiment of the present disclosure, the electronic device 800 can receive all or some of the elements in the useful signal power matrix P from the user equipment via the communication unit 840. That is, the user equipment may transmit all of the elements in the useful signal power matrix P to the electronic device 800, or may transmit some of the elements in the useful signal power matrix P with large values ​​to the electronic device 800.

[0094] According to an embodiment of the present disclosure, the transmit beam determiner 820 can determine a transmit beam of the electronic device 800 according to all or some of the elements in the useful signal power matrix P received from the user equipment. For example, the transmit beam determiner 820 can select a transmit beam that provides a large useful signal power when the user equipment receives a signal as a beam for transmitting a downlink signal. Here, the transmit beam determiner 820 may determine one transmit beam or multiple transmit beams.

[0095] According to an embodiment of the present disclosure, the configuration unit 810 configures a ZP CSI-RS resource set for a user equipment, so that the ZP CSI-RS resources in the ZP CSI-RS resource set and the preset interference scenarios may have a corresponding relationship.

[0096] According to an embodiment of the present disclosure, the ZP CSI-RS resource set and the preset interference scenario may have a one-to-one relationship. That is, the ZP CSI-RS resource in one ZP CSI-RS resource set corresponds to one preset interference scenario. According to an embodiment of the present disclosure, the storage unit 850 can store the correspondence relationship between the ZP CSI-RS resource in the ZP CSI-RS resource set and the preset interference scenario. In this way, both the electronic device 800 and the user equipment can recognize and store the correspondence relationship between the ZP CSI-RS resource in the ZP CSI-RS resource set and the preset interference scenario. That is, for any ZP CSI-RS resource ID, a unique preset interference scenario corresponding thereto can be determined.

[0097] According to an embodiment of the present disclosure, the electronic device 800 configures a ZP CSI-RS resource set for a user equipment, so that the user equipment can measure on the ZP CSI-RS resource set and determine the interference signal power obtained when the user equipment receives a signal using each receive beam in a preset interference scenario corresponding to the ZP CSI-RS resource, i.e., the interference signal power matrix of the preset interference scenario corresponding to the ZP CSI-RS resource.

[0098] According to an embodiment of the present disclosure, as shown in FIG. 8, the electronic device 800 may further include a generating unit 860 for generating reference signal cooperation signaling. The reference signal cooperation signaling includes a time-frequency position of a ZP CSI-RS resource corresponding to a specific preset interference scenario, a type of a reference signal transmitted by another network side device at the time-frequency position of the ZP CSI-RS resource, and a transmission beam when the other network side device transmits a reference signal at the time-frequency position of the ZP CSI-RS resource. Furthermore, according to an embodiment of the present disclosure, the electronic device 800 may transmit reference signal cooperation signaling for a specific preset interference scenario to each other network side device adjacent to the electronic device 800 via the communication unit 840.

[0099] According to the embodiment of the present disclosure, the reference signal cooperation signaling is for other network side devices and for preset interference scenarios, that is, for each other network side device adjacent to the electronic device 800 and for each preset interference scenario, the electronic device 800 can generate and send reference signal cooperation signaling.

[0100] 9 is a schematic diagram illustrating reference signal coordinated signaling according to an embodiment of the present disclosure. As shown in FIG. 9, the reference signal coordinated signaling includes a location of a ZP CSI-RS resource, a type of a reference signal, and a transmission beam.

[0101] According to an embodiment of the present disclosure, the location of the ZP CSI-RS resource indicates the location of the ZP CSI-RS resource corresponding to a certain preset interference scenario, and includes a time domain location and a frequency domain location.

[0102] According to an embodiment of the present disclosure, the type of reference signal indicates the type of reference signal transmitted by other network side devices receiving the reference signal coordinated signaling at the time-frequency location of the ZP CSI-RS resource. The type of reference signal includes NZP CSI-RS and ZP CSI-RS. For example, when the type of reference signal is NZP CSI-RS, it indicates that other network side devices receiving the reference signal coordinated signaling transmit NZP CSI-RS at the time-frequency location of the ZP CSI-RS resource, and when the type of reference signal is ZP CSI-RS, it indicates that other network side devices receiving the reference signal coordinated signaling transmit ZP CSI-RS at the time-frequency location of the ZP CSI-RS resource.

[0103] According to an embodiment of the present disclosure, the transmission beam indicates the transmission beam when another network side device transmits a reference signal at the time-frequency position of the ZP CSI-RS resource.

[0104] According to an embodiment of the present disclosure, when other network side devices interfere with the user equipment in a preset interference scenario corresponding to the ZP CSI-RS resource, the type of the reference signal is NZP CSI-RS and the transmission beam is a beam interfering with the user equipment, and when other network side devices do not interfere with the user equipment in a preset interference scenario corresponding to the ZP CSI-RS resource, the type of the reference signal is ZP CSI-RS and the transmission beam is an arbitrary beam. When the transmission beam is an arbitrary beam, the transmission beam in the reference signal coordinated signaling can be set to zero.

[0105] Here, the electronic device 800 can determine the beams that other network side devices interfere with the user equipment according to the history information. For example, the electronic device 800 can determine the beams that other network side devices interfere with the user equipment according to the previous interference measurement process. In the interference measurement process, the electronic device 800 can configure ZP CSI-RS resources for the user equipment, and other network side devices of neighboring cells can transmit NZP CSI-RS using different transmission beams in the ZP CSI-RS resources. The user equipment can measure RSRP in the ZP CSI-RS resources and feed it back to the electronic device 800, and the electronic device 800 knows the interference strength of different transmission beams of other network side devices to the user equipment, and thereby determines which beams of other network side devices interfere with the user equipment.

[0106] Therefore, through reference signal coordinated signaling, other network side devices can know the location of the ZP CSI-RS resource corresponding to the preset interference scenario, the type of reference signal to be transmitted, and the transmission beam for transmitting the reference signal.

[0107] As described above, according to an embodiment of the present disclosure, in a beam measurement process of a user equipment, for any preset interference scenario, other network side equipment that is interfered with by the user equipment in that preset interference scenario transmits an NZP CSI-RS using a transmission beam that interferes with the user equipment, and other network side equipment that is not interfered with by the user equipment in that preset interference scenario transmits a ZP CSI-RS using an arbitrary transmission beam.

[0108] Additionally, according to an embodiment of the present disclosure, the electronic device 800 can transmit the ZP CSI-RS at a time-frequency location of the ZP CSI-RS resource configured for the user equipment.

[0109] Taking the preset interference scenario 2 shown in FIG. 5 as an example, in the preset interference scenario 2, the base station 1 may be implemented by the electronic device 800, the base station 2 interferes with the user equipment, and the base station 3 does not interfere with the user equipment. According to an embodiment of the present disclosure, the base station 1 can send reference signal cooperation signaling for the preset interference scenario 2 to the base station 2, in which the ZP CSI-RS resource location is the ZP CSI-RS resource location corresponding to the preset interference scenario 2, the type of the reference signal is the NZP CSI-RS, and the transmission beam is the beam interfering with the user (the base station 1 can determine the beam interfering with the user by the base station 2 according to the historical information). The base station 1 can further send reference signal cooperation signaling for the preset interference scenario 2 to the base station 3, in which the ZP CSI-RS resource location is the ZP CSI-RS resource location corresponding to the preset interference scenario 2, the type of the reference signal is the ZP CSI-RS, and the transmission beam is any transmission beam of the base station 3. In this way, in the ZP CSI-RS resource corresponding to the preset interference scenario 2, base station 1 and base station 3 transmit ZP CSI-RS using any transmission beam, base station 2 transmits NZP CSI-RS using a transmission beam that interferes with the user, and the user determines the interference signal power matrix I2 corresponding to the preset interference scenario 2.

[0110] Also, taking the preset interference scenario 4 shown in FIG. 5 as an example, in the preset interference scenario 4, the base station 1 may be realized by the electronic device 800, and both the base station 2 and the base station 3 interfere with the user equipment. According to an embodiment of the present disclosure, the base station 1 can send reference signal cooperation signaling for the preset interference scenario 4 to the base station 2, in which the ZP CSI-RS resource location is the ZP CSI-RS resource location corresponding to the preset interference scenario 4, the type of the reference signal is the NZP CSI-RS, and the transmission beam is the beam interfering with the user (the base station 1 can determine the beam that the base station 2 interferes with the user according to the historical information). The base station 1 can further send reference signal cooperation signaling for the preset interference scenario 4 to the base station 3, in which the ZP CSI-RS resource location is the ZP CSI-RS resource location corresponding to the preset interference scenario 4, the type of the reference signal is the NZP CSI-RS, and the transmission beam is the beam that interferes with the user (the base station 1 can determine the beam that the base station 3 interferes with the user according to the historical information). In this way, in the ZP CSI-RS resource corresponding to preset interference scenario 4, base station 1 transmits ZP CSI-RS using an arbitrary transmission beam, base station 2 and base station 3 transmit NZP CSI-RS using a transmission beam that interferes with the user, and the user determines the interference signal power matrix I4 corresponding to preset interference scenario 4.

[0111] As described above, according to the embodiment of the present disclosure, the configuration unit 810 can determine the useful signal power matrix P by configuring the NZP CSI-RS for the user equipment to measure on the NZP CSI-RS resource set. Furthermore, the configuration unit 810 can determine each interference signal power matrix I by configuring the ZP CSI-RS resource for the user equipment to measure on the ZP CSI-RS resource set. k can be determined.

[0112] According to an embodiment of the present disclosure, the electronic device 800 can receive, via the communication unit 840, interference beam time information from each other network side device adjacent to the electronic device 800, the interference beam time information including interference beam information used by the other network side devices adjacent to the electronic device 800 over multiple time periods.

[0113] FIG. 10 is a schematic diagram showing interference beam time information according to an embodiment of the present disclosure. As shown in FIG. 10, the interference beam time information includes interference beam lists in each of a plurality of time periods of other network side devices adjacent to the electronic device 800. Here, the length of one time period, such as one or more time slots or one or more subframes, can be agreed between the electronic device 800 and the other network side devices adjacent to the electronic device 800. In addition, the other network side devices can determine interference beams that are used in each time period and that interfere with the cell in which the electronic device 800 is located according to history information or experience information.

[0114] According to an embodiment of the present disclosure, the scenario determination unit 830 can determine a preset interference scenario in which the user equipment is located according to interference beam time information of each other network side device adjacent to the electronic device 800. That is, the scenario determination unit 830 determines whether each other network side device interferes with the user equipment according to the interference beam time information from each other network side device, thereby determining a preset interference scenario in which the user equipment is actually located.

[0115] According to an embodiment of the present disclosure, the electronic device 800 can carry a preset interference scenario in which the user equipment is located by the DCI, and can carry a transmission beam of the electronic device 800 by the TCI status information. That is, since the TCI status information and the transmission beam of the electronic device 800 have a corresponding relationship, the electronic device 800 can indicate the transmission beam of the electronic device 800 by the TCI status information.

[0116] According to an embodiment of the present disclosure, the electronic device 800 establishes a correspondence between the TCI status information, the preset interference scenario in which the user equipment is located, and the transmission beam of the electronic device, and the TCI status information can carry the transmission beam of the electronic device 800 and the preset interference scenario in which the user equipment is located.

[0117] As described above, according to the embodiment of the present disclosure, the electronic device 800 can determine the preset interference scenario in which the user equipment is actually located, and can determine the transmission beam that the electronic device 800 actually uses. In this way, the user equipment can select a receiving beam according to the channel quality information obtained in the beam measurement process, the preset interference scenario in which the user equipment is actually located, and the transmission beam of the electronic device 800, so that the interference of adjacent cells is taken into consideration, and thus, when the user equipment receives downlink information using the selected receiving beam, the signal-to-interference-plus-noise ratio is large, so that inter-cell interference can be avoided or reduced.

[0118] FIG. 11 is a signaling flowchart showing a beam measurement process according to an embodiment of the present disclosure. In FIG. 11, the serving base station may be realized by the electronic device 800, the user may be realized by the electronic device 300, and the neighboring base station refers to a base station device in a cell neighboring the electronic device 800. As shown in FIG. 11, in step S1101, the serving base station configures an NZP CSI-RS resource or an SSB resource for the user. Then, in step S1102, the serving base station transmits an NZP CSI-RS signal or an SSB signal at the time-frequency location of the configured NZP CSI-RS resource. Then, in step S1103, the user measures on the configured NZP CSI-RS resource or the SSB resource. Then, in step S1104, the user obtains a useful signal power matrix P. Then, in step S1105, the user transmits all or some elements in the useful signal power matrix P to the serving base station, and the serving base station can determine a transmission beam according to the received information. Next, in step S1106, the serving base station configures a ZP CSI-RS resource for the user. Next, in step S1107, the serving base station transmits reference signal cooperation signaling to each neighbor base station. Next, in step S1108, the serving base station transmits a ZP CSI-RS signal at the time-frequency location of the configured ZP CSI-RS resource. In step S1109, in response to the reference signal cooperation signaling, at the time-frequency location of the configured ZP CSI-RS resource, the neighbor base station that interferes with the user in the preset interference scenario corresponding to the ZP CSI-RS resource transmits a NZP CSI-RS signal using an interference beam, and the neighbor base station that does not interfere with the user in the preset interference scenario corresponding to the ZP CSI-RS resource transmits a ZP CSI-RS signal using an arbitrary beam. Next, in step S1110, the user measures the configured ZP CSI-RS resource. Next, in step S1111, the user obtains an interference signal power matrix for the preset interference scenario corresponding to the configured ZP CSI-RS resource.As described above, according to steps S1106 to S1111, the user obtains an interference signal power matrix of a preset interference scenario corresponding to the configured ZP CSI-RS resource. According to an embodiment of the present disclosure, by repeating steps S1106 to S1111, the user can obtain an interference signal power matrix for each preset interference scenario. As described above, in the beam measurement process, the user obtains a useful signal power matrix P and an interference signal power matrix for each preset interference scenario.

[0119] FIG. 12 is a signaling flowchart showing the determination of a receiving beam according to an embodiment of the present disclosure. In FIG. 12, the serving base station may be realized by an electronic device 800, the user may be realized by an electronic device 300, and the neighboring base station indicates a base station device in a cell neighboring the electronic device 800. As shown in FIG. 12, in step S1201, the serving base station receives interference beam time information from each neighboring base station. Then, in step S1202, the serving base station determines a preset interference scenario according to the received interference beam time information. Then, in step S1203, the serving base station transmits the used transmission beam and the preset interference scenario to the user. Then, in step S1204, the user determines the useful signal power matrix P, each interference signal power matrix I k By determining the receiving beam according to the transmitting beam of the serving base station and the preset interference scenario in which the user is located, a large signal-to-interference-plus-noise ratio is obtained when receiving downlink information using the receiving beam.

[0120] The electronic device 800 according to an embodiment of the present disclosure can be a network side device, and the electronic device 300 can be a user device, that is, the electronic device 800 can provide services to the electronic device 300, so all the embodiments of the electronic device 300 described above are applicable here.

[0121] 4. Method Examples Next, a wireless communication method executed by the electronic device 300 as a user-side device in the wireless communication system according to the embodiment of the present disclosure will be described in detail.

[0122] FIG. 13 is a flowchart illustrating a wireless communication method performed by the electronic device 300 as a user-side device in a wireless communication system according to an embodiment of the present disclosure.

[0123] As shown in FIG. 13, in step S1310, a beam measurement process is performed to determine the channel quality between each receiving beam of the electronic device 300 and each transmitting beam of the network side device serving the electronic device 300 in each preset interference scenario.

[0124] Next, in step S1320, a receiving beam is determined based on the channel quality in each preset interference scenario, the transmitting beam of the network side equipment, and the preset interference scenario in which the electronic equipment 300 is located, thereby maximizing the signal-to-interference-plus-noise ratio obtained when the electronic equipment 300 receives a signal using the determined receiving beam.

[0125] Here, the preset interference scenario indicates the state of interference to the electronic device 300 caused by network side devices around the electronic device 300.

[0126] Preferably, the beam measurement process includes a measurement process on an NZP CSI-RS resource set and a measurement process on a ZP CSI-RS resource set.

[0127] Preferably, performing the beam measurement process includes: determining a useful signal power matrix according to measurement results on the NZP CSI-RS resource set, where each element in the useful signal power matrix indicates a useful signal power obtained when the network side equipment transmits a signal using a specific transmit beam and the electronic device 300 receives the signal using a specific receive beam, in each preset interference scenario; and determining an interference signal power obtained when the electronic device 300 receives a signal using each receive beam, in each preset interference scenario, according to the measurement results on the ZP CSI-RS resource set.

[0128] Preferably, the wireless communication method further includes determining a useful signal power obtained when the electronic device 300 receives a signal using each receiving beam according to a transmitting beam of the network side equipment and a useful signal power matrix, determining an interference signal power obtained when the electronic device 300 receives a signal using each receiving beam according to a preset interference scenario in which the electronic device 300 is located, and determining a signal-to-interference-plus-noise ratio according to the useful signal power and the interference signal power obtained when the electronic device 300 receives a signal using each receiving beam.

[0129] Preferably, the NZP CSI-RS resources in the NZP CSI-RS resource set and the transmission beam of the network side device have a corresponding relationship, and the wireless communication method further includes determining the corresponding relationship between the NZP CSI-RS resources and the transmission beam in accordance with configuration information from the network side device.

[0130] Preferably, the ZP CSI-RS resources in the ZP CSI-RS resource set and the preset interference scenario have a corresponding relationship, and the wireless communication method further includes determining the corresponding relationship between the ZP CSI-RS resources and the preset interference scenario in accordance with configuration information from the network side device.

[0131] Preferably, the wireless communication method further includes: determining a transmission beam of the network side equipment according to the TCI status information; and determining a preset interference scenario in which the electronic equipment 300 is located according to the DCI.

[0132] Preferably, the wireless communication method further includes determining, according to the TCI status information, a transmission beam of the network side equipment and a preset interference scenario in which the electronic equipment 300 is located.

[0133] According to an embodiment of the present disclosure, the body performing the above method may be the electronic device 300 according to an embodiment of the present disclosure, so all the embodiments related to the electronic device 300 above are applicable here.

[0134] Next, a wireless communication method executed by the electronic device 800 as a network side device in a wireless communication system according to an embodiment of the present disclosure will be described in detail.

[0135] FIG. 14 is a flowchart illustrating a wireless communication method executed by the electronic device 800 as a network side device in a wireless communication system according to an embodiment of the present disclosure.

[0136] As shown in FIG. 14, in step S1410, the user equipment determines the channel quality between each receiving beam of the user equipment and each transmitting beam of the electronic device 800 in each preset interference scenario by configuring a ZP CSI-RS resource set and a ZP CSI-RS resource set for the user equipment so that the user equipment performs a beam measurement process.

[0137] Next, in step S1420, the transmitting beam of the electronic device 800 and the preset interference scenario in which the user equipment is located are transmitted to the user equipment so that the user equipment can determine a receiving beam according to the channel quality in each preset interference scenario, the transmitting beam of the electronic device 800, and the preset interference scenario in which the user equipment is located, thereby maximizing the signal-to-interference plus noise ratio obtained when the user equipment receives a signal using the determined receiving beam.

[0138] Here, the preset interference scenario indicates the interference situation of other network side devices adjacent to the electronic device 800 to the user equipment.

[0139] Preferably, configuring an NZP CSI-RS resource set for the user equipment includes configuring an NZP CSI-RS resource set for the user equipment such that the NZP CSI-RS resources in the NZP CSI-RS resource set have a correspondence relationship with the transmission beam of the electronic device 800.

[0140] Preferably, configuring the ZP CSI-RS resource set for the user equipment includes configuring the ZP CSI-RS resource set for the user equipment such that the ZP CSI-RS resources in the ZP CSI-RS resource set have a corresponding relationship with the preset interference scenario.

[0141] Preferably, the wireless communication method further includes transmitting reference signal coordination signaling for the specific preset interference scenario to each other network side device neighboring the electronic device 800, where the reference signal coordination signaling includes a time-frequency position of the ZP CSI-RS resource corresponding to the specific preset interference scenario, a type of reference signal transmitted by the other network side device at the time-frequency position of the ZP CSI-RS resource, and a transmission beam when the other network side device transmits a reference signal at the time-frequency position of the ZP CSI-RS resource.

[0142] Preferably, the type of the reference signal includes NZP CSI-RS and ZP CSI-RS, and when other network side equipment interferes with the user equipment in the preset interference scenario, the type of the reference signal is NZP CSI-RS and the transmission beam is a beam interfering with the user equipment, and when other network side equipment does not interfere with the user equipment in the preset interference scenario, the type of the reference signal is ZP CSI-RS and the transmission beam is an arbitrary beam.

[0143] Preferably, the wireless communication method further includes transmitting the NZP CSI-RS at a time-frequency location of the NZP CSI-RS resource configured for the user equipment to determine a useful signal power matrix, each element in the useful signal power matrix indicating a useful signal power obtained when the electronic device 800 transmits a signal using a particular transmit beam and the user equipment receives the signal using a particular receive beam in each preset interference scenario.

[0144] Preferably, the wireless communication method further includes determining a transmission beam of the electronic device 800 in response to all or some of the elements in the useful signal power matrix received from the user equipment.

[0145] Preferably, the wireless communication method further includes transmitting a ZP CSI-RS at a time-frequency location of the configured ZP CSI-RS resource to a user equipment to determine interference signal power obtained when the user equipment receives a signal using each receive beam in a preset interference scenario corresponding to the ZP CSI-RS resource.

[0146] Preferably, the wireless communication method further includes receiving interference beam time information from each other network side equipment adjacent to the electronic device 800, the interference beam information including interference beam information used by the other network side equipment adjacent to the electronic device 800 in multiple time periods, and determining a preset interference scenario in which the user equipment is located according to the interference beam time information of each other network side equipment adjacent to the electronic device 800.

[0147] Preferably, the wireless communication method further includes carrying, by DCI, a preset interference scenario in which the user equipment is located, and carrying, by TCI status information, a transmission beam of the electronic device 800.

[0148] Preferably, the wireless communication method further includes establishing a correspondence between the TCI status information and a preset interference scenario in which the user equipment is located and a transmission beam of the electronic device 800, and carrying the transmission beam of the electronic device 800 and the preset interference scenario in which the user equipment is located according to the TCI status information.

[0149] According to an embodiment of the present disclosure, the body performing the above method may be the electronic device 800 according to an embodiment of the present disclosure, so all the embodiments related to the electronic device 800 above are applicable here.

[0150] <5. Application Examples> The techniques disclosed herein are applicable to a variety of products.

[0151] The network side device can be realized as any type of TRP. The TRP can have a transmitting / receiving function, for example, can receive information from the user equipment and the base station, and can also transmit information to the user equipment and the base station. In a typical example, the TRP can provide services to the user equipment and is controlled by the base station. In addition, the TRP may have a structure similar to that of the base station described below, or may only have a structure related to the transmission and reception of information in the base station.

[0152] The network side equipment can be realized as any type of base station device, such as a macro eNB or a small eNB, and can also be realized as any type of gNB (base station in a 5G system). The small eNB may also be an eNB, such as a pico eNB, a micro eNB, and a home (femto) eNB, that can cover a cell smaller than a macro cell. Alternatively, the base station can be realized as any other type of base station, such as a NodeB and a base station transceiver station (BTS). The base station may include a subject (also called a base station device) configured to control wireless communication, and one or more remote radio heads (RRHs) provided at a location different from the subject.

[0153] The user equipment may be realized as a mobile terminal (e.g., a smartphone, a tablet personal computer (PC), a notebook PC, a portable game terminal, a portable / dongle mobile router, and a digital photographing device, etc.) or an in-vehicle terminal (e.g., a car navigation device, etc.). The user equipment may also be realized as a terminal that performs machine-to-machine (M2M) communication (also called a machine-type communication (MTC) terminal). In addition, the user equipment may be a wireless communication module (e.g., an integrated circuit module including a single chip) mounted on each of the above user equipment.

[0154] <Application example for base station> (First application example) 15 is a block diagram showing a first example of a schematic configuration of an eNB to which the technology of the present disclosure can be applied. The eNB 1500 includes one or more antennas 1510 and a base station device 1520. The base station device 1520 and each antenna 1510 may be connected to each other via an RF cable.

[0155] Each of the antennas 1510 includes a single or multiple antenna elements (e.g., multiple antenna elements included in a multiple-input multiple-output (MIMO) antenna) and is used for transmitting and receiving radio signals of the base station device 1520. As shown in FIG. 15, the eNB 1500 may include multiple antennas 1510. For example, the multiple antennas 1510 may be compatible with multiple frequency bands used by the eNB 1500. Although FIG. 15 shows an example in which the eNB 1500 includes multiple antennas 1510, the eNB 1500 may include a single antenna 1510.

[0156] The base station device 1520 may include a controller 1521, a memory 1522, a network interface 1523, and a wireless communication interface 1525.

[0157] The controller 1521 is, for example, a CPU or a DSP, and operates various functions of the upper layer of the base station device 1520. For example, the controller 1521 generates a data packet based on data in a signal processed by the wireless communication interface 1525, and transmits the generated packet through the network interface 1523. The controller 1521 can bundle data from multiple baseband processors to generate a bundled packet, and transmit the generated bundled packet. The controller 1521 can have logic functions to perform controls such as radio resource control, radio bearer control, mobility management, admission control, and scheduling. These controls can be performed in cooperation with a nearby eNB or a core network node. The memory 1522 includes a RAM and a ROM, and stores programs executed by the controller 1521 and various control data (for example, a terminal list, transmission power data, and scheduling data).

[0158] The network interface 1523 is a communication interface for connecting the base station device 1520 to the core network 1524. The controller 1521 can communicate with a core network node or another eNB via the network interface 1523. In this case, the eNB 1500 and the core network node or another eNB are connected to each other via a logical interface (e.g., an S1 interface or an X2 interface). The network interface 1523 may be a wired communication interface or a wireless communication interface for a wireless backhaul line. If the network interface 1523 is a wireless communication interface, the network interface 1823 can use a higher frequency band for wireless communication compared to the frequency band used by the wireless communication interface 1525.

[0159] The wireless communication interface 1525 supports any cellular communication scheme (e.g., Long Term Evolution (LTE) and LTE-Advanced) and provides wireless connection to terminals located in the cell of the eNB 1500 via the antenna 1510. The wireless communication interface 1525 may typically include, for example, a baseband (BB) processor 1526 and an RF circuit 1527. The BB processor 1526 may perform, for example, encoding / decoding, modulation / demodulation, multiplexing / demultiplexing, and may perform signal processing of each type of layer (e.g., L1, media access control (MAC), radio link control (RLC), packet data aggregation protocol (PDCP)). Instead of the controller 1521, the BB processor 1526 may have some or all of the above-mentioned logical functions. The BB processor 1526 may be a memory that stores a communication control program, or may be a module including a processor and related circuits configured to execute the program. Program updates may change the functionality of the BB processor 1526. This module may be a card or a chip that is inserted into a slot of the base station device 1520. Alternatively, this module may be a chip that is mounted on the card or the chip. At the same time, the RF circuit 1527 may include, for example, a mixer, a filter, and an amplifier, and may transmit and receive radio signals by the antenna 1510.

[0160] As shown in FIG. 15, the wireless communication interface 1525 may include multiple BB processors 1526. For example, the multiple BB processors 1526 may be compatible with multiple frequency bands used by the eNB 1500. As shown in FIG. 15, the wireless communication interface 1525 may include multiple RF circuits 1527. For example, the multiple RF circuits 1527 may be compatible with multiple antenna elements. Although FIG. 15 illustrates an example in which the wireless communication interface 1525 includes multiple BB processors 1526 and multiple RF circuits 1527, the wireless communication interface 1525 may include a single BB processor 1526 or a single RF circuit 1527.

[0161] (Second application example) 16 is a block diagram showing a second example of a schematic configuration of an eNB to which the technology of the present disclosure can be applied. The eNB 1630 includes one or more antennas 1640, a base station device 1650, and an RRH 1660. The RRH 1660 and each antenna 1640 can be connected to each other via an RF cable. The base station device 1650 and the RRH 1660 can be connected to each other via a high-speed line such as an optical fiber cable.

[0162] Each of the antennas 1640 includes a single or multiple antenna elements (e.g., multiple antenna elements included in a MIMO antenna) and is used for transmitting and receiving radio signals for the RRH 1660. As shown in FIG. 16, the eNB 1630 may include multiple antennas 1640. For example, the multiple antennas 1640 may be compatible with multiple frequency bands used by the eNB 1630. Although FIG. 16 shows an example in which the eNB 1630 includes multiple antennas 1640, the eNB 1630 may include a single antenna 1640.

[0163] The base station device 1650 includes a controller 1651, a memory 1652, a network interface 1653, a wireless communication interface 1655, and a connection interface 1657. The controller 1651, the memory 1652, and the network interface 1653 are similar to the controller 1221, the memory 1222, and the network interface 1223 described with reference to FIG.

[0164] The wireless communication interface 1655 supports any cellular communication method (e.g., LTE and LTE-Advanced) and provides wireless communication to a terminal located in a sector corresponding to the RRH 1660 via the RRH 1660 and the antenna 1640. The wireless communication interface 1655 may typically include, for example, a BB processor 1656. The BB processor 1656 is similar to the BB processor 1426 described with reference to FIG. 12, except that the BB processor 1656 is connected to the RF circuit 1664 of the RRH 1660 via a connection interface 1657. As shown in FIG. 16, the wireless communication interface 1655 may include multiple BB processors 1656. For example, the multiple BB processors 1656 may be compatible with multiple frequency bands used in the eNB 1630. Although FIG. 16 shows an example in which the wireless communication interface 1655 includes multiple BB processors 1656, the wireless communication interface 1655 may include a single BB processor 1656.

[0165] The connection interface 1657 is an interface for connecting the base station device 1650 (wireless communication interface 1655) to the RRH 1660. The connection interface 1657 may be a communication module for communication in the above-mentioned high-speed line for connecting the base station device 1650 (wireless communication interface 1655) to the RRH 1660.

[0166] The RRH 1660 includes a connection interface 1661 and a wireless communication interface 1663 .

[0167] The connection interface 1661 is an interface for connecting the RRH 1660 (wireless communication interface 1663) to the base station device 1650. The connection interface 1661 may be a communication module for communication in the above-mentioned high-speed line.

[0168] The wireless communication interface 1663 transmits and receives wireless signals via the antenna 1640. The wireless communication interface 1663 may typically include, for example, an RF circuit 1664. The RF circuit 1664 may include, for example, a mixer, a filter, and an amplifier, and may transmit and receive wireless signals via the antenna 1640. As shown in FIG. 16, the wireless communication interface 1663 may include multiple RF circuits 1664. For example, the multiple RF circuits 1664 may support multiple antenna elements. Although FIG. 16 illustrates an example in which the wireless communication interface 1663 includes multiple RF circuits 1664, the wireless communication interface 1663 may include a single RF circuit 1664.

[0169] In the eNB 1500 and the eNB 1630 shown in FIG. 15 and FIG. 16, the configuration unit 810, the transmission beam determination unit 820, the scenario determination unit 830, the storage unit 850, and the generation unit 860 described in FIG. 8 may be realized by the controller 1521 and / or the controller 1651. At least a part of the functions may also be realized by the controller 1521 and the controller 1651. For example, the controller 1521 and / or the controller 1651 may perform the functions of configuring ZP CSI-RS resources and NZP CSI-RS resources for a user equipment, determining a transmission beam, determining a preset interference scenario in which the user equipment is located, storing a correspondence relationship between the ZP CSI-RS resources and the preset interference scenarios and a correspondence relationship between the NZP CSI-RS resources and the transmission beams, and generating reference signal coordinated signaling by executing commands stored in corresponding memories.

[0170] <Application examples for terminal devices> (First application example) 17 is a block diagram showing an example of a schematic configuration of a smartphone 1700 to which the technology of the present disclosure can be applied. The smartphone 1700 includes a processor 1701, a memory 1702, a storage device 1703, an external connection interface 1704, an image capture device 1706, a sensor 1707, a microphone 1708, an input device 1709, a display device 1710, a speaker 1711, a wireless communication interface 1712, one or more antenna switches 1715, one or more antennas 1716, a bus 1717, a battery 1718, and an auxiliary controller 1719.

[0171] The processor 1701 is, for example, a CPU or a system on chip (SoC), and can control the functions of the application layer and other layers of the smartphone 1700. The memory 1702 includes a RAM and a ROM, and stores data and programs executed by the processor 1701. The storage device 1703 can include a storage medium such as a semiconductor memory or a hard disk. The external connection interface 1704 is an interface for connecting an external device (for example, a memory card, a universal serial bus (USB) device) to the smartphone 1700.

[0172] The image capture device 1706 includes an image sensor (e.g., a charge-coupled device (CCD), a complementary metal oxide semiconductor (CMOS)) and generates a captured image. The sensor 1707 can include a set of sensors such as a measurement sensor, a gyro sensor, a geomagnetic sensor, and an acceleration sensor. The microphone 1708 converts a sound input to the smartphone 1700 into an audio signal. The input device 1709 includes, for example, a touch sensor configured to detect a touch on the screen of the display device 1710, a keypad, a keyboard, a button, or a switch, and receives an operation or information input from a user. The display device 1710 includes a screen (e.g., a liquid crystal display (LCD), an organic light-emitting diode (OLED) display), and displays an output image of the smartphone 1700. The speaker 1711 converts an audio signal output from the smartphone 1700 into a sound.

[0173] The wireless communication interface 1712 supports any cellular communication method (e.g., LTE and LTE-Advanced) and performs wireless communication. The wireless communication interface 1712 may typically include, for example, a BB processor 1713 and an RF circuit 1717. The BB processor 1713 may perform, for example, encoding / decoding, modulation / demodulation, multiplexing / demultiplexing, and perform various types of signal processing for wireless communication. At the same time, the RF circuit 1717 may include, for example, a mixer, a filter, and an amplifier, and may transmit and receive wireless signals through an antenna 1716. The wireless communication interface 1712 may be a single chip module in which the BB processor 1713 and the RF circuit 1717 are integrated. As shown in FIG. 17, the wireless communication interface 1712 may include multiple BB processors 1713 and multiple RF circuits 1717. Although FIG. 17 shows an example in which the wireless communication interface 1712 includes multiple BB processors 1713 and multiple RF circuits 1717, the wireless communication interface 1712 may include a single BB processor 1713 or a single RF circuit 1717.

[0174] In addition to the cellular communication system, the wireless communication interface 1712 can support other types of wireless communication systems, such as a short-range wireless communication system, a proximity communication system, a wireless local network (LAN) system, etc. In this case, the wireless communication interface 1712 can include a BB processor 1713 and an RF circuit 1717 for various wireless communication systems.

[0175] Each of the antenna switches 1715 switches the connection of the antenna 1716 between multiple circuits (eg, circuits used for different wireless communication methods) included in the wireless communication interface 1712.

[0176] Each of the antennas 1716 includes a single or multiple antenna elements (e.g., multiple antenna elements included in a MIMO antenna) and is used for transmitting and receiving wireless signals through the wireless communication interface 1712. As shown in Fig. 17, the smartphone 1700 may include multiple antennas 1716. Although Fig. 17 illustrates an example in which the smartphone 1700 includes multiple antennas 1716, the smartphone 1700 may include a single antenna 1716.

[0177] The smartphone 1700 may include an antenna 1716 for various wireless communication methods. In this case, the antenna switch 1715 may be omitted from the configuration of the smartphone 1700.

[0178] The bus 1717 connects the processor 1701, the memory 1702, the storage device 1703, the external connection interface 1704, the image capture device 1706, the sensor 1707, the microphone 1708, the input device 1709, the display device 1710, the speaker 1711, the wireless communication interface 1712, and the auxiliary controller 1719 to one another. The battery 1718 supplies power to each block of the smartphone 1700 shown in FIG. 17 via a power supply line, and the power supply line is partially indicated by a dotted line in the drawing. The auxiliary controller 1719 operates the minimum necessary functions of the smartphone 1700, for example, in a sleep mode.

[0179] In the smartphone 1700 shown in FIG. 17, the measurement unit 310, the reception beam determination unit 320, the storage unit 340, the transmission beam determination unit 350, and the scenario determination unit 360 described in FIG. 3 can be realized by the processor 1701 or the auxiliary controller 1719. At least a part of the functions can also be realized by the processor 1701 or the auxiliary controller 1719. For example, the processor 1701 or the auxiliary controller 1719 can execute the functions of measuring a beam, determining a reception beam, storing the correspondence between ZP CSI-RS resources and preset interference scenarios and the correspondence between NZP CSI-RS resources and transmission beams, determining a transmission beam of the network side device, and determining a preset interference scenario by executing commands stored in the memory 1702 or the storage device 1703.

[0180] (Second application example) 18 is a block diagram showing an example of a schematic configuration of a car navigation device 1820 to which the technology of the present disclosure can be applied. The car navigation device 1820 includes a processor 1821, a memory 1822, a global positioning system (GPS) module 1824, a sensor 1825, a data interface 1826, a content player 1827, a storage medium interface 1828, an input device 1829, a display device 1830, a speaker 1831, a wireless communication interface 1833, one or more antenna switches 1836, one or more antennas 1837, and a battery 1838.

[0181] The processor 1821 is, for example, a CPU or SoC, and can control the navigation function and other functions of the car navigation device 1820. The memory 1822 includes a RAM and a ROM, and stores data and programs executed by the processor 1821.

[0182] The GPS module 1824 measures the position (e.g., latitude, longitude, altitude) of the car navigation device 1820 using GPS signals received from GPS satellites. The sensor 1825 may include a set of sensors such as a gyro sensor, a geomagnetic sensor, and an air pressure sensor. The data interface 1826 connects to, for example, an in-vehicle network 1841 via a terminal (not shown) to acquire data generated by the vehicle (e.g., vehicle speed data).

[0183] The content player 1827 plays content stored on a storage medium (e.g., CD and DVD), which is inserted into the storage medium interface 1828. The input device 1829 includes, for example, a touch sensor, button, or switch configured to detect a touch on the screen of the display device 1830, and receives operations or information input from a user. The display device 1830 includes, for example, a screen such as an LCD or OLED display, and displays images of the navigation function or the played content. The speaker 1831 outputs sounds of the navigation function or the played content.

[0184] The wireless communication interface 1833 supports any cellular communication method (e.g., LTE and LTE-Advanced) and performs wireless communication. The wireless communication interface 1833 may typically include, for example, a BB processor 1834 and an RF circuit 1835. The BB processor 1834 may perform, for example, encoding / decoding, modulation / demodulation, and multiplexing / demultiplexing, and may perform various types of signal processing used in wireless communication. At the same time, the RF circuit 1835 may include, for example, a mixer, a filter, and an amplifier, and may transmit and receive wireless signals by an antenna 1837. The wireless communication interface 1833 may be a single chip module in which the BB processor 1834 and the RF circuit 1835 are integrated. As shown in FIG. 18, the wireless communication interface 1833 may include a plurality of BB processors 1834 and a plurality of RF circuits 1835. Although FIG. 18 shows an example in which the wireless communication interface 1833 includes multiple BB processors 1834 and multiple RF circuits 1835, the wireless communication interface 1833 may include a single BB processor 1834 or a single RF circuit 1835.

[0185] In addition to the cellular communication method, the wireless communication interface 1833 can support other types of wireless communication methods, such as a short-distance wireless communication method, a close-proximity communication method, and a wireless LAN method. In this case, the wireless communication interface 1833 can include a BB processor 1834 and an RF circuit 1835 for various wireless communication methods.

[0186] Each of the antenna switches 1836 switches the connection of the antenna 1837 between multiple circuits (eg, circuits used for different wireless communication methods) included in the wireless communication interface 1833.

[0187] Each of the antennas 1837 includes a single or multiple antenna elements (for example, multiple antenna elements included in a MIMO antenna) and is used for transmitting and receiving wireless signals through the wireless communication interface 1833. As shown in Fig. 18, the car navigation device 1820 can include multiple antennas 1837. Although Fig. 18 shows an example in which the car navigation device 1820 includes multiple antennas 1837, the car navigation device 1820 may include a single antenna 1837.

[0188] The car navigation device 1820 may include an antenna 1837 for various wireless communication methods. In this case, the antenna switch 1836 may be omitted from the configuration of the car navigation device 1820.

[0189] 18 through a power supply line, which is partially indicated by a dotted line in the drawing. The battery 1838 stores the power supplied from the vehicle.

[0190] In the car navigation device 1820 shown in Fig. 18, the measurement unit 310, the reception beam determination unit 320, the storage unit 340, the transmission beam determination unit 350, and the scenario determination unit 360 described in Fig. 3 can be realized by the processor 1821. At least a part of the functions can also be realized by the processor 1821. For example, the processor 1821 can execute the functions of measuring a beam, determining a reception beam, storing the correspondence between ZP CSI-RS resources and preset interference scenarios and the correspondence between NZP CSI-RS resources and transmission beams, determining a transmission beam of the network side device, and determining a preset interference scenario by executing commands stored in the memory 1822.

[0191] The technology of the present disclosure can be realized as an in-vehicle system (or vehicle) 1840 including one or more blocks of a car navigation device 1820, an in-vehicle network 1841, and a vehicle module 1842. The vehicle module 1842 generates vehicle data (e.g., vehicle speed, engine speed, and failure information) and outputs the generated data to the in-vehicle network 1841.

[0192] Although the preferred embodiment of the present disclosure has been described above with reference to the drawings, the present disclosure is of course not limited to the above examples. It should be understood that those skilled in the art can obtain various modifications and changes within the scope of the appended claims, and these modifications and changes are also included in the technical scope of the present disclosure.

[0193] For example, in the illustrated functional block diagram, any unit indicated by a dotted block indicates that the functional unit is optional in the corresponding device, and that each optional functional unit can be combined in an appropriate manner to realize the required function.

[0194] For example, in the above embodiments, multiple functions included in one unit can be realized by separate devices. Alternatively, in the above embodiments, multiple functions realized by multiple units can each be realized by a separate device. Also, one of the above functions can be realized by multiple units. It goes without saying that such an arrangement is within the technical scope of the present disclosure.

[0195] In this specification, the steps described in the flowcharts include not only processes that are executed in chronological order, but also processes that are not necessarily executed in chronological order but are executed in parallel or independently. It goes without saying that the order of steps that are executed in chronological order may be changed.

[0196] Although the embodiments of the present disclosure have been described in detail with reference to the drawings, it should be understood that the above-described embodiments are for the purpose of illustrating the present disclosure and are not intended to limit the present disclosure. Those skilled in the art can make various modifications and changes to the above-described embodiments without departing from the spirit and scope of the present disclosure. Therefore, the scope of the present disclosure is limited only by the appended claims and their equivalents.

Claims

1. An electronic device, Perform a beam measurement process, including a measurement process on a non-zero power signal status information reference signal NZP CSI-RS resource set and a measurement process on a zero power signal status information reference signal ZP CSI-RS resource set, to determine channel quality between each receiving beam of the electronic device and each transmitting beam of a network side device serving the electronic device in each preset interference scenario; A processing circuit configured to determine a receiving beam according to a channel quality in each preset interference scenario, a transmitting beam of the network side device, and a preset interference scenario in which the electronic device is located, so that a signal-to-interference-plus-noise ratio obtained when the electronic device receives a signal using the determined receiving beam is maximized; The preset interference scenario indicates an interference situation of a network side device surrounding the electronic device to the electronic device, The processing circuitry further comprises: According to the measurement results in the NZP CSI-RS resource set, a useful signal power matrix unrelated to the preset interference scenario is determined, and each element in the useful signal power matrix indicates a useful signal power obtained when the network side device transmits a signal using a specific transmission beam and the electronic device receives a signal using a specific reception beam in each of the preset interference scenarios; Determine, in response to the measurement results on the ZP CSI-RS resource set, an interference signal power obtained when the electronic device receives a signal using each receive beam in each of the preset interference scenarios; A ZP CSI-RS resource in a ZP CSI-RS resource set and one preset interference scenario corresponding to each ZP CSI-RS resource set have a correspondence relationship; The processing circuitry further comprises: An electronic device configured to determine a correspondence relationship between a ZP CSI-RS resource and a preset interference scenario according to configuration information from the network side device.

2. The processing circuitry further comprises: determining a useful signal power obtained when the electronic device receives a signal using each receiving beam according to the transmission beam of the network side device and the useful signal power matrix; determining an interference signal power that the electronic device will obtain when receiving a signal using each receiving beam according to a preset interference scenario in which the electronic device is located; 2. The electronic device of claim 1, wherein the electronic device is configured to determine a signal-to-interference-plus-noise ratio as a function of useful signal power and interfering signal power obtained when receiving a signal using each receive beam.

3. The NZP CSI-RS resource in the NZP CSI-RS resource set and the transmission beam of the network side device have a corresponding relationship, The processing circuitry further comprises: The electronic device according to claim 1, configured to determine a correspondence relationship between NZP CSI-RS resources and transmission beams in accordance with configuration information from a network side device.

4. The processing circuitry further comprises: Determining a transmission beam of the network side device according to the transmission configuration indication (TCI) status information; The electronic device of claim 1 , configured to determine a preset interference scenario in which the electronic device is located depending on downlink control information DCI.

5. The processing circuitry further comprises: The electronic device according to claim 1 , configured to determine a transmission beam of the network side equipment and a preset interference scenario in which the electronic device is located according to transmission configuration indication (TCI) status information.

6. An electronic device that functions as a network side device, Configuring a non-zero power signal status information reference signal NZP CSI-RS resource set and a zero power signal status information reference signal ZP CSI-RS resource set for the user equipment to perform a beam measurement process, so that the user equipment determines a channel quality between each receiving beam of the user equipment and each transmitting beam of the electronic device in each preset interference scenario; a processing circuit configured to transmit a transmission beam of the electronic device and a preset interference scenario in which the user device is located to the user device so that the user device determines a reception beam according to channel quality in each preset interference scenario, a transmission beam of the electronic device, and a preset interference scenario in which the user device is located, thereby maximizing a signal-to-interference-plus-noise ratio obtained when the user device receives a signal using the determined reception beam; The preset interference scenario indicates an interference situation of other network side devices adjacent to the electronic device to the user equipment, The processing circuitry further comprises: An electronic device configured such that a ZP CSI-RS resource in the ZP CSI-RS resource set corresponds to one preset interference scenario corresponding to each ZP CSI-RS resource set by configuring a ZP CSI-RS resource set for a user equipment.

7. The processing circuitry further comprises:

7. The electronic device according to claim 6, wherein an NZP CSI-RS resource set is configured for a user equipment, so that an NZP CSI-RS resource in the NZP CSI-RS resource set and a transmission beam of the electronic device have a corresponding relationship.

8. The processing circuitry further comprises: and transmitting reference signal cooperation signaling for a specific preset interference scenario to each other network side device adjacent to the electronic device, the reference signal cooperation signaling including a time-frequency position of a ZP CSI-RS resource corresponding to the specific preset interference scenario, a type of reference signal transmitted by the other network side device at the time-frequency position of the ZP CSI-RS resource, and a transmission beam when the other network side device transmits a reference signal at the time-frequency position of the ZP CSI-RS resource.

9. The types of the reference signals include NZP CSI-RS and ZP CSI-RS; 9. The electronic device of claim 8, wherein when the other network side equipment interferes with the user equipment in the preset interference scenario, the type of the reference signal is NZP CSI-RS and the transmission beam is a beam that interferes with the user equipment, and when the other network side equipment does not interfere with the user equipment in the preset interference scenario, the type of the reference signal is ZP CSI-RS and the transmission beam is an arbitrary beam.

10. The processing circuitry further comprises:

7. The electronic device of claim 6, wherein a user equipment is configured to transmit an NZP CSI-RS at a time-frequency location of an NZP CSI-RS resource configured for the user equipment to determine a useful signal power matrix, each element in the useful signal power matrix indicating a useful signal power obtained when the electronic device transmits a signal using a specific transmit beam and the user equipment receives a signal using a specific receive beam for each of the preset interference scenarios.

11. The processing circuitry further comprises: The electronic device according to claim 10 , configured to determine a transmission beam of the electronic device depending on all or some of the elements in a useful signal power matrix received from the user equipment.

12. The processing circuitry further comprises:

7. The electronic device of claim 6, configured to transmit a ZP CSI-RS at a time-frequency location of the ZP CSI-RS resource configured for a user equipment to determine an interference signal power obtained when the user equipment receives a signal using each receive beam in a preset interference scenario corresponding to the ZP CSI-RS resource.

13. The processing circuitry further comprises: receiving interference beam time information from each other network side device adjacent to the electronic device, the interference beam time information including interference beam information used by the other network side devices adjacent to the electronic device in a plurality of time periods; The electronic device according to claim 6, configured to determine a preset interference scenario in which the user equipment is located according to interference beam time information of each other network side equipment adjacent to the electronic device.

14. The processing circuitry further comprises: Carrying a preset interference scenario in which the user equipment is located by downlink control information (DCI); 7. The electronic device of claim 6, configured to carry a transmit beam of said electronic device according to transmission configuration indication (TCI) status information.

15. The processing circuitry further comprises: Establish a correspondence between the transmission configuration indication (TCI) status information, the preset interference scenario in which the user equipment is located, and the transmission beam of the electronic equipment; 7. The electronic device of claim 6, configured with TCI status information to carry a transmit beam of the electronic device and a preset interference scenario in which the user equipment is located.

16. A wireless communication method performed by an electronic device, comprising: Perform a beam measurement process, including a measurement process on a non-zero power signal status information reference signal NZP CSI-RS resource set and a measurement process on a zero power signal status information reference signal ZP CSI-RS resource set, to determine channel quality between each receiving beam of the electronic device and each transmitting beam of a network side device serving the electronic device in each preset interference scenario; determining a receiving beam according to a channel quality in each preset interference scenario, a transmitting beam of the network side device, and a preset interference scenario in which the electronic device is located, thereby maximizing a signal-to-interference-plus-noise ratio obtained when the electronic device receives a signal using the determined receiving beam; The preset interference scenario indicates an interference situation of a network side device surrounding the electronic device to the electronic device, Further determine a useful signal power matrix not related to the preset interference scenario according to the measurement result in the NZP CSI-RS resource set, and each element in the useful signal power matrix indicates a useful signal power obtained when the network side device transmits a signal using a specific transmission beam and the electronic device receives a signal using a specific reception beam in each of the preset interference scenarios; Further determining, in response to the measurement results on the ZP CSI-RS resource set, an interference signal power obtained when the electronic device receives a signal using each receiving beam in each of the preset interference scenarios; A ZP CSI-RS resource in a ZP CSI-RS resource set and one preset interference scenario corresponding to each ZP CSI-RS resource set have a correspondence relationship; The wireless communication method includes determining a correspondence relationship between a ZP CSI-RS resource and a preset interference scenario according to configuration information from the network side device.

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