Electronic device and method for wireless communication, and computer-readable storage medium
By performing interference beam measurement in wireless communication systems, the problem that L1-RSRP cannot reflect neighbor cell interference is solved, and more accurate beam quality evaluation and efficient beam management are achieved.
Patent Information
- Application Number
- CN201980048593.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- Priority Date
- 2018-09-12
- Filing Date
- 2019-09-05
- Publication Date
- 2025-01-17
- Estimated Expiration
- 2039-09-05
AI Technical Summary
The existing wireless communication systems have shortcomings in interference measurement. L1-RSRP cannot reflect the impact of neighboring cell interference beams, and the high-level interference measurement mechanism of mobility management has a long measurement period and is not suitable for beam management based on interference perception.
Provide an electronic device and method to achieve a more accurate beam by determining and measuring the degree of interference between the transmitted beam of the neighboring cell and using a processing circuit to acquire and report resource indicators, and perform interference beam measurement based on the configuration information of the base station. Quality Assessment.
The beam quality of the serving cell is more accurately evaluated while considering interference, achieving more efficient beam management, and reducing resource occupancy and energy consumption.
Smart Images

Figure CN112470510B_ABST
Abstract
Description
[0001] This application claims priority to a Chinese patent application filed with the Chinese Patent Office on September 12, 2018, with application number 201811061539.2 and invention name “Electronic device and method for wireless communication, computer-readable storage medium”, the entire contents of which are incorporated by reference into this application. Technical Field
[0002] The present application relates to the field of wireless communication technology, and in particular to interference measurement in a wireless communication system, and more particularly to an electronic device and method for wireless communication and a computer-readable storage medium. Background Art
[0003] New Radio (NR) is the next generation of wireless access for Long Term Evolution (LTE) and is a different radio access technology (RAT) from LTE. In the currently formulated 5G standard, the beam management mechanism is enhanced, which may include enhancements related to interference measurement.
[0004] For example, the user equipment (UE) measures the reference signal received power (L1-Reference Signal Received Power, L1-RSRP) of the physical layer and reports the measurement result to the base station, so that the base station can select a transmit beam with a higher L1-RSRP to perform communication with the UE. However, L1-RSRP cannot reflect the impact of interference beams from neighboring cells. In other words, a beam with a higher L1-RSRP may be subject to stronger interference from neighboring cells, resulting in poor beam quality.
[0005] In addition, the high-level interference measurement mechanism used for mobility management has a long measurement and reporting period and is not suitable for interference-aware beam management. Summary of the invention
[0006] A brief overview of the disclosure is given below in order to provide a basic understanding of certain aspects of the disclosure. It should be understood that this overview is not an exhaustive overview of the disclosure. It is not intended to identify key or important parts of the disclosure, nor is it intended to limit the scope of the disclosure. Its purpose is simply to give certain concepts in a simplified form as a prelude to a more detailed description discussed later.
[0007] According to one aspect of the present application, an electronic device for wireless communication is provided, comprising: a processing circuit, configured to: determine resources for sending reference signals of a neighboring cell that are expected to be used for interference beam measurement, wherein the interference beam measurement is used to measure the degree of interference of the neighboring cell's transmit beam on the serving cell; report a resource indicator of the determined resources to a base station of the serving cell; and perform interference beam measurement based on configuration information from the base station.
[0008] According to one aspect of the present application, a method for wireless communication is provided, comprising: determining resources for sending reference signals of a neighboring cell that are expected to be used for interference beam measurement, wherein the interference beam measurement is used to measure the degree of interference of the neighboring cell's transmit beam on the serving cell; reporting a resource indicator of the determined resources to a base station of the serving cell; and performing interference beam measurement based on configuration information from the base station.
[0009] According to another aspect of the present application, an electronic device for wireless communication is provided, comprising: a processing circuit, configured to: obtain a resource indicator to be measured from a user equipment of a serving cell, the resource indicator to be measured indicating a resource of a neighboring cell's transmitted reference signal expected to be used for interference beam measurement, the interference beam measurement being used to measure the degree of interference of the neighboring cell's transmit beam on the serving cell; provide the resource indicator to be measured to a base station of the neighboring cell; and generate configuration information for the interference beam measurement to provide to the user equipment.
[0010] According to another aspect of the present application, a method for wireless communication is provided, comprising: obtaining a resource indicator to be measured from a user equipment of a serving cell, the resource indicator to be measured indicating a resource of a neighboring cell's transmitted reference signal that is expected to be used for interference beam measurement, the interference beam measurement being used to measure the degree of interference of the neighboring cell's transmit beam on the serving cell; providing the resource indicator to be measured to a base station of the neighboring cell; and generating configuration information for the interference beam measurement to provide to the user equipment.
[0011] According to other aspects of the present disclosure, a computer program code and a computer program product for implementing the above method for wireless communication and a computer-readable storage medium having the computer program code for implementing the above method for wireless communication recorded thereon are also provided.
[0012] The electronic device and method according to the present application measures the interference degree of the transmission beam of the neighboring cell on the serving cell by performing interference beam measurement, so that the beam quality of each beam of the serving cell can be more accurately evaluated while considering the interference, thereby achieving more efficient beam management.
[0013] These and other advantages of the present disclosure will become more apparent through the following detailed description of the preferred embodiments of the present disclosure in conjunction with the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS
[0014] In order to further illustrate the above and other advantages and features of the present disclosure, the specific embodiments of the present disclosure are further described in detail below in conjunction with the accompanying drawings. The accompanying drawings together with the following detailed description are included in this specification and form a part of this specification. Elements with the same function and structure are represented by the same reference numerals. It should be understood that these drawings only describe typical examples of the present disclosure and should not be regarded as limiting the scope of the present disclosure. In the drawings:
[0015] Figure 1 is a functional module block diagram of an electronic device for wireless communication according to an embodiment of the present application;
[0016] Figure 2 It shows the related information flow between the base station of the serving cell and the UE;
[0017] FIG. 3A to FIG. 3C Schematic diagrams of three scanning mechanisms of interference beams are shown respectively;
[0018] Figure 4 A schematic diagram of interference beam measurement is shown;
[0019] Figure 5 An example of quantifying the physical layer reference signal receiving quality (L1-Reference Signal ReceivingQuality, L1-RSRQ) is shown;
[0020] Figure 6 An illustrative example of a measurement result reported when the reference signal is a channel state information reference signal (CSI-RS) is shown;
[0021] Figure 7 Another exemplary embodiment of the measurement result reported when the reference signal is a CSI-RS is shown;
[0022] Figure 8 An example of quantizing L1-RSRP is shown;
[0023] Fig. 9 Another exemplary embodiment of the measurement result reported when the reference signal is a CSI-RS is shown;
[0024] Fig.10Another exemplary embodiment of the measurement result reported when the reference signal is a CSI-RS is shown;
[0025] Fig.11 Another exemplary embodiment of the measurement result reported when the reference signal is a CSI-RS is shown;
[0026] Fig.12 Another exemplary embodiment of the measurement result reported when the reference signal is a CSI-RS is shown;
[0027] Fig.13 Schematic diagram showing the relationship between resources of reference signals used for beam management and resources of reference signals used for mobility management
[0028] Fig.14 is a functional module block diagram of an electronic device for wireless communication according to another embodiment of the present application;
[0029] Fig.15 A flow chart of a method for wireless communication according to an embodiment of the present application is shown;
[0030] Fig.16 A flowchart of a method for wireless communication according to another embodiment of the present application is shown;
[0031] Fig.17 is a block diagram showing a first example of a schematic configuration of an eNB or gNB to which the technology of the present disclosure can be applied;
[0032] Fig.18 is a block diagram showing a second example of a schematic configuration of an eNB or gNB to which the technology of the present disclosure can be applied;
[0033] Fig.19 is a block diagram showing an example of a schematic configuration of a smartphone to which the technology of the present disclosure can be applied;
[0034] Fig. 20 is a block diagram showing an example of a schematic configuration of a car navigation device to which the technology of the present disclosure can be applied; and
[0035] Fig.21 is a block diagram of an exemplary structure of a general personal computer in which the method and / or apparatus and / or system according to the embodiments of the present disclosure can be implemented. DETAILED DESCRIPTION
[0036] Exemplary embodiments of the present disclosure will be described below in conjunction with the accompanying drawings. For the sake of clarity and conciseness, not all features of the actual implementation are described in the specification. However, it should be understood that many implementation-specific decisions must be made in the process of developing any such actual implementation in order to achieve the developer's specific goals, such as meeting those constraints related to the system and business, and these constraints may vary from implementation to implementation. In addition, it should be understood that although the development work may be very complex and time-consuming, it is only a routine task for those skilled in the art who benefit from the content of this disclosure.
[0037] It is also necessary to explain here that, in order to avoid obscuring the present disclosure due to unnecessary details, only the device structure and / or processing steps closely related to the scheme according to the present disclosure are shown in the accompanying drawings, while other details that are not very relevant to the present disclosure are omitted.
[0038] <First Embodiment>
[0039] Figure 1 FIG. 1 shows a functional module block diagram of an electronic device 100 for wireless communication according to an embodiment of the present application. Figure 1 As shown, the electronic device 100 includes: a determination unit 101, configured to determine resources of a neighboring cell's transmitted reference signal that are expected to be used for interference beam measurement, where the interference beam measurement is used to measure the degree of interference of the neighboring cell's transmit beam on the serving cell; a reporting unit 102, configured to report a resource indicator of the determined resources to the base station of the serving cell; and an execution unit 103, configured to perform interference beam measurement based on configuration information from the base station.
[0040] The determining unit 101, the reporting unit 102 and the executing unit 103 may be implemented by one or more processing circuits, which may be implemented as a chip or a processor, for example. Figure 1 The various functional units in the electronic device shown in the figure are only logical modules divided according to the specific functions implemented by them, and are not used to limit the specific implementation method. This also applies to the examples of other electronic devices to be described later.
[0041] The electronic device 100 can be arranged on the user equipment (UE) side or can be communicatively connected to the UE. Here, it should also be noted that the electronic device 100 can be implemented at the chip level, or it can also be implemented at the device level. For example, the electronic device 100 can work as the user equipment itself, and can also include external devices such as memory, transceiver (not shown in the figure). The memory can be used to store programs and related data information that need to be executed by the user equipment to implement various functions. The transceiver may include one or more communication interfaces to support communication with different devices (e.g., base stations, other user equipment, etc.), and the implementation form of the transceiver is not specifically limited here. The same applies to the subsequent description of other configuration examples of electronic devices on the user equipment side.
[0042] As mentioned above, it is expected to obtain the degree of interference caused by the transmission beam of the neighboring cell to the serving cell with a lower delay, so as to realize beam management taking into account the interference of the neighboring cell. In the present application, the serving cell refers to the cell currently accessed by the UE, and the neighboring cell refers to the cell adjacent to the serving cell, wherein the transmission beam of the neighboring cell may interfere with the communication of the serving cell. For example, when the base station of the serving cell uses the transmission beam beam1 to transmit data to the UE, the transmission beam beam2 of the base station of the neighboring cell may be received by the UE at the same time, thereby causing interference and reducing the communication quality.
[0043] Therefore, by making the neighboring cell send a reference signal in the desired beam transmission direction, and making the UE of the serving cell measure the reference signal, the interference degree of the transmitting beam of the neighboring cell to the serving cell can be obtained. The reference signal described here can be, for example, a synchronization signal (Synchronization Signal, SS) (or Synchronization Signal / Physical Broadcast Channel (SS / PBCH)), or CSI-RS (Channel State Information Reference Signal).
[0044] It should be understood that when beamforming technology is used, the base station may have multiple beam transmission directions, and each beam transmission direction has a predetermined corresponding relationship with the resources used to send the reference signal. Considering factors such as spatial position, only a part of all transmission beams of the neighboring cell may cause interference to the serving cell, so only this part of the transmission beams may be considered, thereby reducing the measurement load.
[0045] In this embodiment, the determination unit 101 determines the resources for sending reference signals of neighboring cells to be used for interference beam measurement, that is, determines the direction of the transmission beam of the neighboring cell. In one example, the determination unit 101 is configured to determine the resources based on information collected during initial access and / or mobility-related configurations. Specifically, the UE will measure the synchronization signal / physical broadcast channel (SS / PBCH) from multiple cells during initial access and select the one with the best channel quality (i.e., the serving cell) for access. Accordingly, the UE will regard other cells that do not participate in serving the UE as cells that may cause interference (also called interfering cells), and for example, can store beam-related information or resource indicator information of each interfering cell. The determination unit 101 can select the direction of one or more transmission beams that the neighboring cell is most likely to interfere with the serving cell based on this information, that is, determine the corresponding resources for sending reference signals. The reporting unit 102 reports the resource indicator of the determined resource to the base station of the serving cell, and the base station of the serving cell transmits it to the base station of the neighboring cell, for example, via Xn signaling, so that the base station of the neighboring cell reaches a consensus with the base station of the serving cell and uses the corresponding resources to transmit a dedicated reference signal (e.g., CSI-RS) for the UE of the serving cell to measure.
[0046] Accordingly, the execution unit 103 performs interference beam measurement based on the configuration information from the base station. It can be understood that the configuration information is used to configure the specific method adopted by the interference beam measurement, the resources occupied by the measurement, etc. For example, the execution unit 103 can receive the configuration information via Radio Resource Control (RRC) signaling. After the execution unit 103 completes the interference beam measurement, the reporting unit 102 also reports the measurement result of the interference beam measurement to the base station. In this way, the UE only needs to measure one or more neighboring cell beams that are most likely to interfere with it, thereby saving energy consumption, and the neighboring cell base station does not have to occupy too many resources to transmit interference beams for non-service users for measurement, thereby reducing the reference signal resource overhead.
[0047] For ease of understanding, Figure 2 The relevant information flow between the base station of the serving cell and the UE is shown. Figure 2As shown, in the initial access phase, the UE searches and synchronizes to the current serving cell, then receives the system information block (SIB) from the base station of the serving cell in the downlink, selects the current serving cell and sends the physical random access channel (PRACH) to the base station in the uplink. In the initial cell search and selection process, the UE searches each carrier in turn and determines the cell with the strongest synchronization signal reception strength as the serving cell. In this process, the UE records and stores the cell ID and the indicator of its beam corresponding to the observed stronger carrier. After successful access, the UE enters the RRC connection (RRC_Connected) state. Next, the UE reports to the base station the resource indicator of the neighboring cell that it expects to measure, such as reporting the cell ID of the neighboring cell stored before and the resource indicator of its beam. The base station sends the configuration information of the interference beam measurement to the UE. The UE performs interference beam measurement according to the configuration information, and reports the measurement result to the base station so that the base station can use the measurement result for beam management. In this embodiment, the UE performs interference measurement and reporting at the physical layer.
[0048] For example, the configuration information may include one or more of the following: resources for interference beam measurement of the serving cell; resources for sending reference signals of the neighboring cell; periodic configuration related to interference beam measurement; scanning mechanism of the interference beam; category of the reference signal. Note that these configuration information may be included in one signaling (such as RRC signaling) or in multiple signalings (such as a combination of RRC signaling and MAC signaling).
[0049] In another example, after the UE completes access and communicates with the serving base station, it will perform high-level measurements related to mobility according to the configuration of the serving base station, such as measuring the signal strength of the neighboring cell and comparing it with the signal strength of the serving cell so that the base station can determine whether it needs to switch to other cells for service. In this process, the UE needs to measure multiple neighboring cell frequencies configured by the base station and then store the cell ID and its beam corresponding to the measured stronger frequency as historical information, so as to screen and report the interference beam to be measured by the serving base station.
[0050] As mentioned above, the reference signal can be SS / PBCH or CSI-RS. Among them, the width of the SS / PBCH beam is relatively wide, and up to 64 SS / PBCH resources can cover the entire cell, so when SS / PBCH is used, a general understanding of the interference caused by the neighboring cell can be obtained. On the other hand, the beam width of CSI-RS is relatively narrow, and when CSI-RS is used, the interference caused by the neighboring cell can be more accurately known.
[0051] In order to complete the measurement of the interference beam of the neighboring cell, the serving cell needs to configure measurement resources for the UE in advance, and the measurement resources may include the SS / PBCH resources or NZP CSI-RS (Non-Zero Power CSI-RS) resources used by the neighboring cell for transmitting the beam, and may also include the SS / PBCH resources or NZP CSI-RS resources used for L1-RSRP measurement of the serving cell. In the case where the resources used by the neighboring cell for sending the reference signal are consistent with the resources of the neighboring cell for sending the reference signal reported by the reporting unit 102 for interference beam measurement, this item may not be included in the configuration information.
[0052] In addition, the periodic configuration related to the interference beam measurement may include one or more of the following: periodic measurement, non-periodic measurement, and semi-static measurement. Among them, the interference beam measurement can be performed periodically at predetermined intervals, or can be performed non-periodically, for example, when the communication quality drops to a predetermined level. The interference beam measurement can also be performed in a semi-static manner, such as when the base station dynamically triggers the measurement of the interference beam through downlink control information (Downlink Control Information, DCI). It should be understood that the above three periodic configurations can be used in combination.
[0053] The scanning mechanism of the interference beam may include one of the following: the base station of the neighboring cell scans the transmit beam, and the UE of the serving cell scans the receive beam (hereinafter also referred to as the P1' process); the base station of the neighboring cell scans the transmit beam, and the UE of the serving cell fixes the receive beam (hereinafter also referred to as the P2' process); and the base station of the neighboring cell fixes the transmit beam, and the UE of the serving cell scans the receive beam (hereinafter also referred to as the P3' process).
[0054] For ease of understanding, Figure 3A An example of the P1' process is shown, Figure 3B An example of the P2' process is shown, Figure 3C An example of the P3' process is shown. FIG. 3A to FIG. 3C In Figure 1, cell A is the serving cell, cell B is the neighboring cell, and the beam represented by the black solid line is the transmit beam or receive beam involved in the measurement. Figure 3A The transmission beams of the neighboring cells are shown in black solid lines. FIG. 3B to FIG. 3C The transmit beam of the neighboring cell shown by the gray solid line may be only a part of the transmit beam that the neighboring cell can transmit, but not all of them. Similarly, the receive beam of the UE shown may also be only a part of the receive beam that the UE can use. FIG. 3A to FIG. 3C Only one neighboring cell is shown in FIG. 8 , but this is not restrictive, and multiple neighboring cells may exist.
[0055] When the reference signal is SS / PBCH, the resource indicator is the synchronization signal block resource indicator (Synchronization Signal Block Resource indicator, SSBRI). Due to the periodic transmission properties of SS / PBCH, the following configuration can be adopted: perform periodic interference beam measurement, and / or adopt the P1' process. When the reference signal is CSI-RS, the resource indicator is the channel state information reference signal resource indicator (CSI-RSResource Indicator, CRI). In order to reduce the load of neighboring cells sending reference signals, the following configuration can be adopted in this case: perform non-periodic interference beam measurement; and / or adopt the P2' process or the P3' process. It should be understood that these configurations are only illustrative examples and are not restrictive.
[0056] In the case where the reference signal is CSI-RS, the execution unit 103 can also be configured to determine the scanning mechanism of the interference beam based on a specific parameter in the RRC signaling. For example, the specific parameter is InterferenceMeasureRSRepetition. When the specific parameter is set to ON, it means that the transmission of the reference signal is repeated, so the scanning mechanism of the interference beam is: the neighboring cell base station fixes the transmission beam, and the user equipment of the serving cell scans the receiving beam, that is, the P3' process; when the specific parameter is set to OFF, it means that the transmission of the reference signal is not repeated, so the scanning mechanism of the interference beam is: the neighboring cell base station scans the transmission beam, and the user equipment of the serving cell fixes the receiving beam, that is, the P2' process. In addition, when the specific parameter is not configured, it can be considered that the CSI-RS resource is not used for interference beam measurement.
[0057] For example, the execution unit 103 is configured to: measure L1-RSRP for each beam pair used for reference signal transmission and reception of the serving cell; measure the physical layer received signal strength indication (L1-ReceivedSignal Strength Inication, L1-RSSI) for each beam pair composed of the transmit beam of the base station of the neighboring cell and the receive beam of the user equipment of the serving cell for interference beam measurement, or measure the sum of interference and noise on the resource unit carrying the reference signal; and calculate the physical layer reference signal reception quality (L1-Reference Signal Receiving Quality, L1-RSRQ) of each beam pair of the serving cell considering the interference of the neighboring cell based on the measured L1-RSRP and L1-RSSI, or calculate the physical layer signal to interference and noise ratio (L1-Signal to Interference and Noise Ratio, L1-SINR) of each beam pair of the serving cell considering the interference of the neighboring cell based on the measured L1-RSRP and the sum of interference and noise. Hereinafter, L1-RSRQ and L1-SINR may also be referred to as RSRQ and SINR for short.
[0058] Among them, by measuring the L1-RSRP of the transmit-receive beam pair of the service cell and measuring the L1-RSSI or the sum of interference and noise (I+N) of the interference beam of the neighboring cell for the same receive beam, and taking the ratio of the two (i.e., L1-RSRP / L1-RSSI or L1-RSRP / (I+N)), the beam quality of the beam pair considering the interference of the neighboring cell, i.e., L1-RSRQ or L1-SINR, can be obtained. Figure 4 A schematic diagram of this measurement is shown in Figure 4 In the figure, the beams with black solid lines represent the transmitting beam and the receiving beam, cell A is the serving cell, and cells B and C are the neighboring cells. It should be understood that the number of neighboring cells is not limited to the two shown in the figure.
[0059] When scanning multiple interference beams of neighboring cells for one receiving beam, for example Figure 4 In the case of scanning three beams of neighboring cells B and C, multiple L1-RSRQs or L1-SINRs can be obtained, for example, the maximum value or the minimum value can be retained as needed.
[0060] In one example, the execution unit 103 can also determine the N beam pairs of the service cell with the highest L1-RSRQ or L1-SINR as the N beam pairs with the best beam quality considering the interference of neighboring cells based on the calculated L1-RSRQ or L1-SINR, and the reporting unit 102 reports the resource indicator of the reference signal resource corresponding to the transmit beam in the N beam pairs as the measurement result to the base station, where N is a natural number. In this way, the base station can know the transmit beam that is less interfered by the neighboring cell. Among them, when the reference signal SS / PBCH is used, SSBRI is reported, and when the reference signal CSI-RS is used, CRI is reported. For example, N can be equal to 4.
[0061] In addition, the reported measurement results may also include an indication of the beam qualities associated with the N beam pairs.
[0062] For example, the indication of beam quality includes a quantized value of L1-RSRQ or L1-SINR associated with each of the N beam pairs. Figure 5 An example of quantizing RSRQ is shown. The quantization range of RSRQ is -34dB to 2.5dB, and the step length is 0.5dB. Therefore, there are 77 quantization states in total, and each RSRQ reporting value can be represented by a 7-bit field. In addition, SINR can be quantized similarly.
[0063] Figure 6 FIG. 2 shows an illustrative example of a measurement result reported when the reference signal is a CSI-RS. Figure 6 In the CSI field, there are four CRIs and the quantized values of RSRQ corresponding to the four CRIs, and CRI#1 to CRI#4 correspond to RSRQ#1 to RSRQ#4 one by one. The RSRQs corresponding to CRI#1 to CRI#4 are, for example, from high to low, that is, the value of RSRQ#1 corresponding to CRI#1 is the largest.
[0064] Of course, SINR can also be used as an indicator for sorting CRIs, and the SINRs corresponding to the first four CRIs are reported. In addition, if the reference signal is SS / PBCH, SSBRI is used instead of CRI.
[0065] Notice, Figure 6 Except for the value corresponding to the first CRI, which is represented by the actual quantized value, the rest of the RSRQs are represented by differential values to reduce signaling overhead. In other words, the execution unit 103 can also be configured to use the highest L1-RSRQ or L1-SINR as a benchmark, and use the differential values of the L1-RSRQ or L1-SINR associated with other beam pairs in the N beam pairs relative to the benchmark as an indication of the beam quality of other beams.
[0066] In addition to the quantized value of L1-RSRQ or L1-SINR, the indication of beam quality may also include an indication of whether the L1-RSRP of each of the N beam pairs is above a predetermined threshold or an indication of the value range of the L1-RSRP. This may indicate, for example, a transmit beam with a very high L1-RSRQ or L1-SINR but a very low L1-RSRP.
[0067] When an indication of whether the L1-RSRP of each beam pair is above a predetermined threshold is included, the indication may be represented, for example, by an additional 1-bit field. In addition, the value range of possible values of L1-RSRP may be divided into several ranges, and the number of bits to be used may be determined based on the number of ranges into which they are divided. For example, the value range of possible values of L1-RSRP may be divided into 4 ranges, and an additional 2 bits may be used to indicate the value range in which L1-RSRP is located. The additional 1-bit or 2-bit field here may be added, for example, after the quantized value of RSRQ or SINR.
[0068] For another example, the indication of beam quality includes a quantized value of L1-RSRP for each of N beam pairs, wherein the indication of beam quality may also include a quantized value of L1-RSRQ or L1-SINR associated with each of the N beam pairs, or may not include a quantized value of L1-RSRQ or L1-SINR.
[0069] In order to reduce signaling overhead, the highest L1-RSRP can be used as a benchmark, and the differential values of other L1-RSRPs relative to the benchmark can be used as the quantized values of the L1-RSRPs of other beam pairs. The indication of beam quality also includes information indicating the position of the highest L1-RSRP in the measurement result. This is because, since the reported resource indicators are sorted according to L1-RSRQ or L1-SINR, the L1-RSRP of the beam pair corresponding to the resource indicator with the highest L1-RSRQ or L1-SINR does not necessarily have the maximum value. In other words, the L1-RSRP used as a benchmark is not necessarily the first L1-RSRP, so additional information is needed to indicate the position of the L1-RSRP used as a benchmark in the measurement result.
[0070] Figure 7 FIG. 2 shows another exemplary embodiment of the measurement result reported when the reference signal is a CSI-RS. Figure 7In the CSI field, the reported CRI#1 to CRI#4 and the quantized values of the RSRP corresponding thereto are included, and 2 bits or less are included to indicate the position of the highest L1-RSRP. In this example, the beam pair corresponding to CRI#2 has the highest L1-RSRP, so the above 2 bits are used to indicate, for example, position 2. It can be understood that when fewer CRIs are reported, fewer bits can be used to indicate the position of the highest L1-RSRP.
[0071] In addition, although Figure 7 Not shown, but the CSI field may also include Figure 6 Similarly, when the reference signal is SS / PBCH, the resource indicator is SSBRI.
[0072] In another example, the execution unit 103 determines, based on the measured L1-RSRP, the N beam pairs of the serving cell with the highest L1-RSRP as the N beam pairs with the best beam quality taking into account the interference from neighboring cells, and the reporting unit 102 reports the resource indicator of the reference signal resource corresponding to the transmitting beam in the N beam pairs as the measurement result to the base station, where N is a natural number and the measurement result also includes interference information associated with the N beam pairs.
[0073] For example, the measurement results also include the quantized value of L1-RSRP of each of the N beam pairs, where the highest L1-RSRP is used as a benchmark, and the differential value of the received power of other physical layer reference signals relative to the benchmark is used as the quantized value of L1-RSRP of other beam pairs. Figure 8 An example of quantizing L1-RSRP is shown. The reference signal is CSI-RS, and the quantization range of CSI-RSRP is -140dBm to -44dBm, with a step size of 1dBm. Therefore, there are 98 quantization states in total, and each CSI-RSRP reporting value can be represented by a 7-bit field. For the case where the reference signal is SS / PBCH, similar quantization can be performed.
[0074] Different from the prior art, the measurement results reported in this example also include interference information associated with the N beam pairs. For example, the interference information may be an indication of whether the L1-RSRQ or L1-SINR associated with each of the N beam pairs is above a predetermined threshold. The indication may be appended to the quantized value of RSRP, and the indication may be represented by a 1-bit field.
[0075] In addition, the interference information may also be an indication of the value range of L1-RSRQ or L1-SINR associated with each of the N beam pairs. The number of bits required to indicate the indication depends on the number of value ranges. For example, when the possible value range of L1-RSRQ or L1-SINR is divided into four value ranges, a 2-bit field may be used to indicate the indication. Similarly, the indication may be appended to the quantized value of RSRP.
[0076] Alternatively, the interference information may include information indicating that the N beam pairs are sorted according to L1-RSRQ or L1-SINR. For example, for each reported resource indicator, the sequence number corresponding to the beam corresponding to the resource indicator when the N beam pairs are sorted from high to low according to L1-RSRQ or L1-SINR is included. Fig. 9 Another illustrative example of the measurement results reported when the reference signal is CSI-RS is shown. In this example, the CSI field includes CRI#1 to CRI#4 corresponding to the first four beam pairs obtained by sorting RSRP from large to small and the quantized values of RSRP corresponding to the four CRIs, wherein only the largest RSRP is represented by the quantized value of the actual value, and the other RSRPs are represented by the differential values relative to the largest RSRP. The CSI field also includes 2 bits or less indicating the sequence number of one of CRI#1 to CRI#4, which is obtained by sorting the beam pairs corresponding to CRI#1 to CRI#4 from high to low according to their L1-RSRQ or L1-SINR.
[0077] Alternatively, the interference information may include L1-RSRQ or L1-SINR associated with each of the N beam pairs. Fig.10 Another illustrative example of the measurement results reported when the reference signal is CSI-RS is shown, in which, in addition to the RSRP of each CRI, the RSRQ of each CRI is also included, the maximum RSRQ is represented by its actual quantized value and the other RSRQs are represented by differential values relative to the maximum RSRQ. In addition, since the RSRQ of the beam pair corresponding to CRI#1 does not necessarily have the maximum value, information indicating the location of the maximum RSRQ is also included. Fig.10 In the example, 2 bits or less are used to indicate the position, for example, the RSRQ of the beam pair corresponding to CRI#2 is the largest. Similarly, SINR can be used instead of RSRQ, or SSBRI can be used as a resource indicator when the reference signal is SS / PBCH.
[0078] In another example, the execution unit 103 is further configured to determine, based on L1-RSRQ or L1-SINR, the M beam pairs that cause the strongest or weakest interference to the serving cell among the beam pairs formed by the transmit beam of the base station of the neighboring cell and the receive beam of the user equipment of the serving cell, and include the resource indicator of the resource of the reference signal of the neighboring cell corresponding to the transmit beam in the M beam pairs and the identifier of the neighboring cell in the measurement result. Alternatively, the execution unit 103 may also be configured to determine, based on the L1-RSRP of the transmit beam for the neighboring cell, the M beams that cause the strongest or weakest interference to the serving cell among the transmit beam of the neighboring cell, and include the resource indicator of the resource of the reference signal of the neighboring cell corresponding to the M beams and the identifier of the neighboring cell in the measurement result. For example, in order to determine the maximum L1-RSRP for each transmit beam of the neighboring cell, the UE may try to use different receive beams.
[0079] The measurement result can inform the base station of the serving cell which transmit beams will be most interfered by the neighboring cell, or which transmit beams can avoid interference from the neighboring cell as much as possible. In addition, since the UE reports the interference caused by the beams of the neighboring cell, beam-level system scheduling can be performed between the neighboring cell and the serving cell. For example, when the neighboring cell uses a downlink transmit beam that causes strong interference to the UE, the serving cell can make the UE avoid using the receive beam that receives the strong interference from the neighboring cell as much as possible.
[0080] Fig.11Another illustrative example of the measurement results reported when the reference signal is CSI-RS is shown. In this example, the CSI field includes the CRI corresponding to the M (e.g., M=4) beams with the strongest interference caused by the neighboring cells and the physical cell identifier (PCI) of the corresponding neighboring cells. In addition, the CSI field also includes the quantized values of RSRP corresponding to the M beams. In the case where the M beams are determined based on L1-RSRP, the quantized value of RSRP is the maximum RSRP that can be obtained for each of the M (e.g., M=4) beams, and similarly, the maximum RSRP is represented by its actual quantized value and the other RSRPs are represented by the differential value relative to the maximum RSRP. On the other hand, in the case where the M beams are determined based on L1-RSRQ or L1-SINR, the quantized value of RSRP is the quantized value of the RSRP of the transmit beam of the neighboring cell received by the UE when the corresponding M (e.g., M=4) beam pairs are used. Similarly, the maximum RSRP is represented by its actual quantized value and the other RSRPs are represented by the differential value relative to the maximum RSRP. However, in the latter case, the RSRP corresponding to the transmit beam with the largest L1-RSRQ or L1-SINR is not necessarily the highest. Therefore, the CSI field may also include information indicating the location of the highest RSRP, such as Fig.11 As shown in the italic column in , for example, 2 bits or less are used to indicate the information.
[0081] Fig.12 FIG. 2 shows another exemplary embodiment of the measurement result reported when the reference signal is a CSI-RS. Fig.11 Different, in this example, the CSI field includes the CRI corresponding to the four beams with the weakest interference caused by the neighboring cells and the PCI of the corresponding neighboring cells. Similarly, the CRI can be selected based on L1-RSRQ or L1-SINR, or based on L1-RSRP. Fig.11 The description given applies similarly to Fig.12 , which will not be repeated here.
[0082] In addition, when the reference signal is SS / PBCH, the reported resource indicator is SSBRI. It should be understood that when process P3' is adopted, since the transmission beam of the neighboring cell is fixed, it is not necessary to perform the following steps. Fig.11 or Fig.12 Report shown.
[0083] Although multiple examples of reported measurement results are described above, it should be understood that such description is not restrictive, and various other reporting forms may also be adopted.
[0084] In addition to the reference signal measurement for beam management, the UE also performs reference signal measurement for mobility management. The resources of the reference signal for mobility management have a longer period than the resources of the reference signal for beam management. If the two resources are quasi co-located (QCLed), the UE can measure the two resources at certain moments to obtain a more accurate result, which is called joint measurement. Fig.13 A schematic diagram showing the relationship between the resources of the reference signal for beam management and the resources of the reference signal for mobility management is shown. It can be seen that in the dotted box, the two resources are quasi-co-located in space, and the UE can measure the two resources and report them as the measurement results of this application.
[0085] Accordingly, the reporting unit 102 can be configured to report information indicating whether joint measurement is supported to the base station, wherein, as described above, the joint measurement includes simultaneously measuring resources of reference signals for interference beam measurement and measuring spatial quasi-co-location resources for mobility measurement.
[0086] To summarize, according to this embodiment, the electronic device 100 measures the degree of interference of the transmitting beam of the neighboring cell on the serving cell by performing interference beam measurement, so that the beam quality of each beam of the serving cell can be more accurately evaluated while considering the interference, thereby achieving more efficient beam management.
[0087] <Second Embodiment>
[0088] Fig.14 FIG. 2 shows a functional module block diagram of an electronic device 200 according to another embodiment of the present application. Fig.14 As shown, the electronic device 200 includes: an acquisition unit 201, configured to acquire a resource indicator to be measured from a user equipment of a serving cell, the resource indicator to be measured indicating a resource of a sending reference signal of a neighboring cell expected to be used for interference beam measurement, the interference beam measurement being used to measure the degree of interference of the transmitting beam of the neighboring cell on the serving cell; a providing unit 202, configured to provide the resource indicator to be measured to a base station of the neighboring cell; and a generating unit 203, configured to generate configuration information for the interference beam measurement to provide to the user equipment.
[0089] The acquisition unit 201, the providing unit 202 and the generating unit 203 may be implemented by one or more processing circuits, which may be implemented as a chip or a processor, for example. Fig.14 The various functional units in the electronic device shown in the figure are only logical modules divided according to the specific functions implemented by them, and are not used to limit the specific implementation method. This also applies to the examples of other electronic devices to be described later.
[0090] The electronic device 200 can be arranged on the base station side or can be communicatively connected to the base station. The base station described in the present application can also be a transceiver point (Transmit Receive Point, TRP) or an access point (Access Point, AP). Here, it should also be noted that the electronic device 200 can be implemented at the chip level, or it can also be implemented at the device level. For example, the electronic device 200 can work as the base station itself, and can also include external devices such as memory, transceiver (not shown). The memory can be used to store programs and related data information that need to be executed by the base station to implement various functions. The transceiver may include one or more communication interfaces to support communication with different devices (for example, user equipment, other base stations, etc.), and the implementation form of the transceiver is not specifically limited here. This also applies to the subsequent description of other configuration examples of electronic devices on the base station side.
[0091] For a detailed description of the interference beam measurement, please refer to the description in the first embodiment and will not be repeated here. For example, the reference signal to be used for the interference beam measurement may be SS / PBCH or CSI-RS. Accordingly, the resource indicators to be measured acquired by the acquisition unit 201 may be SSBRI and CRI, respectively. These resource indicators to be measured substantially indicate the direction of the transmission beam of the neighboring cell. As described in the first embodiment, these resource indicators to be measured may be determined, for example, by the UE based on the information collected during its initial access and / or mobility-related configuration.
[0092] Next, the providing unit 202 may provide the resource indicator to be measured to the base station of the neighboring cell, for example, through Xn signaling. In one example, the neighboring cell will provide a transmit beam corresponding to the resource indicator to be measured, without sending any feedback to the base station of the serving cell.
[0093] In another example, the base station of the neighboring cell also determines whether it can provide the resources indicated by the resource indicator to be measured according to its own resource usage status, that is, determines whether it can provide the corresponding transmission beam for the serving cell, and provides the judgment result to the base station of the serving cell in the form of feedback. In this case, the acquisition unit 201 is also configured to obtain feedback information for the resource indicator to be measured from the base station of the neighboring cell.
[0094] The feedback information may include, for example, one of the following: confirmation information; modified indicator of resources to be measured. For example, when the reference signal is CSI-RS, the base station of the neighboring cell may determine whether the current CSI-RS resources are sufficient. If sufficient, it may send confirmation information to the base station of the serving cell, indicating that the transmission beam will be provided according to the indicator of resources to be measured. Otherwise, it may determine the resources that can be provided according to the current resource occupancy status, and provide the modified indicator of resources to be measured to the base station of the serving cell. The feedback information is also transmitted through Xn signaling.
[0095] Accordingly, when the neighboring cell is to perform interference beam measurement, the acquisition unit 201 is further configured to receive a resource indicator to be measured from the base station of the neighboring cell. In addition, the acquisition unit 201 may also provide feedback information on the received resource indicator to be measured to the base station of the neighboring cell.
[0096] On the other hand, if the base station of the neighboring cell modifies the resource indicator to be measured, the base station of the serving cell also provides the information of the modified resource indicator to be measured to the UE so that the UE can perform correct measurement. This information can be included in the configuration information to be described below.
[0097] The generating unit 203 generates configuration information for interference beam measurement to provide to the UE. For example, the configuration information may include one or more of the following: resources for interference beam measurement of the serving cell; resources for sending reference signals of the neighboring cell; periodic configuration related to interference beam measurement; scanning mechanism of the interference beam; category of the reference signal.
[0098] The configuration information may be provided to the UE via RRC signaling, for example. Furthermore, the configuration information may be provided via one or more RRC signalings. The detailed description of each item in the configuration information has been given in the first embodiment and will not be repeated here.
[0099] The periodic configuration related to the interference beam measurement includes one or more of the following: periodic measurement, non-periodic measurement, and semi-static measurement. The scanning mechanism of the interference beam includes one of the following: the neighboring cell base station scans the transmit beam, and the UE of the serving cell scans the receive beam; the neighboring cell base station scans the transmit beam, and the UE of the serving cell fixes the receive beam; and the neighboring cell base station fixes the transmit beam, and the UE of the serving cell scans the receive beam, as described in the first embodiment with reference to Figures 3A to 3C The base station allocates measurement resources to the UE accordingly according to these configurations.
[0100] For example, the generation unit 203 may be configured to indicate to the UE the scanning mechanism of the interference beam based on a specific parameter in the RRC signaling. The specific parameter is, for example, InterferenceMeasureRSRepetition. When the specific parameter is set to ON, the scanning mechanism of the interference beam of the neighboring cell is: the neighboring cell base station fixes the transmit beam, and the user equipment of the serving cell scans the receive beam; when the specific parameter is set to OFF, the scanning mechanism of the interference beam of the neighboring cell is: the neighboring cell base station scans the transmit beam, and the user equipment of the serving cell fixes the receive beam.
[0101] In addition, the acquisition unit 201 is further configured to acquire the measurement result of the interference beam measurement from the UE. For example, the measurement result includes a resource indicator of N resources of the serving cell for sending a reference signal, wherein, in the beam pair used for the interference beam measurement, the N beam pairs consisting of the transmit beam corresponding to the N resources and the receive beam of the user equipment have the best beam quality considering the interference of the neighboring cell, wherein N is a natural number. The measurement result may also include an indication of the beam quality associated with the N beam pairs.
[0102] In one example, among the beam pairs used for interference beam measurement, the N beam pairs have the highest L1-RSRQ or L1-SINR. The indication of beam quality may include a quantized value of the L1-RSRQ or L1-SINR associated with each of the N beam pairs. In addition, the indication of beam quality also includes an indication of whether the L1-RSRP of each of the N beam pairs is above a predetermined threshold or an indication of the value range of the L1-RSRP.
[0103] In another example, among the beam pairs used for interference beam measurement, the N beam pairs have the highest L1-RSRP, and the indication of beam quality includes interference information associated with the N beam pairs. For example, the interference information may include one of the following: an indication of whether the L1-RSRQ or L1-SINR associated with each of the N beam pairs is above a predetermined threshold; an indication of the value range of the L1-RSRQ or L1-SINR associated with each of the N beam pairs; information indicating the sorting of the N beam pairs according to L1-RSRQ or L1-SINR. In addition, the indication of beam quality may also include a quantized value of the L1-RSRP corresponding to the N beam pairs.
[0104] In yet another example, the measurement result may include a resource indicator of the resources of the reference signal corresponding to the M transmit beams of the neighboring cell causing the strongest or weakest interference to the serving cell and an identifier of the neighboring cell.
[0105] The specific forms and contents of the measurement results described above can be used in combination, and the details thereof refer to the first embodiment. Figures 5 to 13 given, and will not be repeated here.
[0106] In addition, the acquisition unit 201 is further configured to acquire information indicating whether joint measurement is supported, wherein the joint measurement includes simultaneously measuring resources of reference signals for interference beam measurement and resources for mobility measurement in quasi-co-location of the measurement space. Through the joint measurement, the accuracy of the interference beam measurement can be improved.
[0107] To summarize, the electronic device 200 according to the present application can obtain the degree of interference of the transmitting beam of the neighboring cell on the serving cell through the interference beam measurement performed by the UE, so that the beam quality of each beam of the serving cell can be more accurately evaluated while considering the interference, thereby achieving more efficient beam management.
[0108] <Third Embodiment>
[0109] In the process of describing the electronic device for wireless communication in the above embodiments, it is obvious that some processes or methods are also disclosed. Below, an overview of these methods is given without repeating some of the details discussed above, but it should be noted that although these methods are disclosed in the process of describing the electronic device for wireless communication, these methods do not necessarily use the components described or are not necessarily performed by those components. For example, the embodiments of the electronic device for wireless communication can be partially or completely implemented using hardware and / or firmware, and the methods for wireless communication discussed below can be completely implemented by a computer executable program, although these methods can also use the hardware and / or firmware of the electronic device for wireless communication.
[0110] Fig.15 A flow chart of a method for wireless communication according to an embodiment of the present application is shown, the method comprising: determining a resource of a neighboring cell that is expected to be used for a transmission reference signal for interference beam measurement (S11), the interference beam measurement being used to measure the interference degree of the transmission beam of the neighboring cell to the serving cell; reporting a resource indicator of the determined resource to a base station of the serving cell (S12); and performing interference beam measurement based on configuration information from the base station (S13). The method is performed, for example, on the UE side.
[0111] For example, in step S11, the resource may be determined based on information collected during initial access and / or mobility-related configuration.
[0112] In step S13, configuration information is received via RRC signaling. Exemplarily, the configuration information may include one or more of the following: resources of the serving cell for interference beam measurement; resources of the neighboring cell for sending reference signals; periodic configuration related to interference beam measurement; scanning mechanism of interference beam; category of reference signal. Among them, the periodic configuration related to interference beam measurement includes one or more of the following: periodic measurement, non-periodic measurement, semi-static measurement. The scanning mechanism of the interference beam may include one of the following: the neighboring cell base station scans the transmit beam, and the user equipment of the serving cell scans the receive beam; the neighboring cell base station scans the transmit beam, and the user equipment of the serving cell fixes the receive beam; and the neighboring cell base station fixes the transmit beam, and the user equipment of the serving cell scans the receive beam.
[0113] The reference signal may be a synchronization signal, and the resource indicator may be SSBRI, wherein the base station of the neighboring cell scans the transmit beam, and the user equipment of the serving cell scans the receive beam. The reference signal may also be CSI-RS, and the resource indicator may be CRI. In step S13, the scanning mechanism of the interference beam may be determined based on specific parameters in the RRC. For example, the specific parameter is InterferenceMeasureRSRepetition. When the specific parameter is set to ON, the scanning mechanism of the interference beam is: the base station of the neighboring cell fixes the transmit beam, and the user equipment of the serving cell scans the receive beam; when the specific parameter is set to OFF, the scanning mechanism of the interference beam is: the base station of the neighboring cell scans the transmit beam, and the user equipment of the serving cell fixes the receive beam.
[0114] In step S13, interference beam measurement can be performed as follows: for each beam pair used for reference signal transmission and reception of the serving cell, measure L1-RSRP; for each beam pair used for interference beam measurement, which is composed of the transmit beam of the base station of the neighboring cell and the receive beam of the user equipment of the serving cell, measure L1-RSSI, or measure the sum of interference and noise on the resource unit carrying the reference signal; and calculate the L1-RSRQ of each beam pair of the serving cell considering the interference of the neighboring cell based on the measured L1-RSRP and L1-RSSI, or calculate the L1-SINR of each beam pair of the serving cell considering the interference of the neighboring cell based on the measured L1-RSRP and the sum of interference and noise.
[0115] like Fig.15 As shown in the dotted box in , the above method may further include step S14: reporting the measurement result of the interference beam measurement to the base station.
[0116] In one example, step S13 further includes: based on the calculated L1-RSRQ or L1-SINR, determining N beam pairs of the serving cell with the highest L1-RSRQ or L1-SINR as the N beam pairs with the best beam quality considering the interference of the neighboring cell, where N is a natural number. In step S14, a resource indicator of a resource of a reference signal corresponding to the transmit beam in the N beam pairs is reported to the base station as a measurement result.
[0117] The measurement results may also include an indication of the beam quality associated with the N beam pairs. For example, the indication of the beam quality includes a quantized value of the L1-RSRQ or L1-SINR associated with each of the N beam pairs. The highest L1-RSRQ or L1-SINR may be used as a benchmark, and the differential values of the L1-RSRQ or L1-SINR associated with other beam pairs in the N beam pairs relative to the benchmark may be used as an indication of the beam quality of the other beams.
[0118] The indication of beam quality may also include an indication of whether the L1-RSRP of each of the N beam pairs is above a predetermined threshold or an indication of the value range of the L1-RSRP.
[0119] The indication of beam quality may include a quantized value of L1-RSRP for each of the N beam pairs, wherein the highest L1-RSRP is used as a benchmark, and the differential values of other L1-RSRPs relative to the benchmark are used as the quantized values of L1-RSRP for other beam pairs. The indication of beam quality also includes information indicating the position of the highest L1-RSRP in the measurement results.
[0120] In another example, step S13 also includes: based on the measured L1-RSRP, determining the N beam pairs of the service cell with the highest L1-RSRP as the N beam pairs with the best beam quality considering the interference from neighboring cells, and reporting the resource indicator of the reference signal resource corresponding to the transmit beam in the N beam pairs as the measurement result to the base station, where N is a natural number and the measurement result also includes interference information associated with the N beam pairs.
[0121] The measurement results may also include the quantized value of L1-RSRP of each of the N beam pairs, wherein the highest L1-RSRP is used as a benchmark, and the differential values of other L1-RSRPs relative to the benchmark are used as the quantized values of L1-RSRP of other beam pairs.
[0122] The interference information may, for example, include one of the following: an indication of whether the L1-RSRQ or L1-SINR associated with each of the N beam pairs is above a predetermined threshold; an indication of the value range of the L1-RSRQ or L1-SINR associated with each of the N beam pairs; information indicating the ordering of the N beam pairs according to L1-RSRQ or L1-SINR.
[0123] In another example, step S13 may further include: based on the calculated L1-RSRQ or L1-SINR, determining the M beam pairs that cause the strongest or weakest interference to the serving cell among the beam pairs formed by the transmit beam of the base station of the neighboring cell and the receive beam of the user equipment of the serving cell. In step S14, the resource indicator of the resource of the reference signal of the neighboring cell corresponding to the transmit beam in the M beam pairs and the identifier of the neighboring cell are included in the measurement result.
[0124] In addition, although not shown in the figure, the above method may also include the following steps: reporting information indicating whether joint measurement is supported to the base station, wherein the joint measurement includes simultaneously measuring the resources of the reference signal for interference beam measurement and the resources for mobility measurement in the quasi-co-location of the measurement space.
[0125] Fig.16 A flow chart of a method for wireless communication according to another embodiment of the present application is shown, the method comprising: obtaining a resource indicator to be measured from a user equipment of a serving cell, the resource indicator to be measured indicating a resource of a reference signal transmitted by a neighboring cell expected to be used for interference beam measurement, the interference beam measurement being used to measure the interference degree of the transmission beam of the neighboring cell to the serving cell (S21); providing the resource indicator to be measured to a base station of the neighboring cell (S22); and generating configuration information for interference beam measurement to provide to the user equipment (S23). The method is performed, for example, on the base station side.
[0126] The reference signal may be CSI-RS or SS / PBCH. In step S22, the resource indicator to be measured is provided to the base station of the neighboring cell through Xn signaling. In step S22, feedback information for the resource indicator to be measured may also be obtained from the base station of the neighboring cell. The feedback information may include, for example, one of the following: confirmation information; a modified resource indicator to be measured.
[0127] For the definition of the configuration information, please refer to the first embodiment, which will not be repeated here. The configuration information can be provided to the UE via RRC signaling.
[0128] like Fig.16As shown in the dotted box in , the above method may also include step S24: obtaining the measurement result of the interference beam measurement from the UE. The measurement result, for example, includes a resource indicator of N resources of the serving cell for sending a reference signal, wherein, in the beam pair used for interference beam measurement, the N beam pairs consisting of the transmit beam corresponding to the N resources and the receive beam of the user equipment have the best beam quality considering the interference of the neighboring cells, wherein N is a natural number. The measurement result also includes an indication of the beam quality associated with the N beam pairs. The indication of beam quality may include a quantized value of L1-RSRQ or L1-SINR associated with each of the N beam pairs. The indication of beam quality may also include an indication of whether the L1-RSRP of each of the N beam pairs is above a predetermined threshold or an indication of the value range of the L1-RSRP.
[0129] In addition, although Fig.16 Although not shown in the figure, the above method may further include the following steps: receiving a resource indicator to be measured from a base station of a neighboring cell, and providing feedback information on the resource indicator to be measured to the base station of the neighboring cell.
[0130] Note that the above methods may be used in combination or individually, and the details thereof have been described in detail in the first to second embodiments and will not be repeated here.
[0131] The technology of the present disclosure can be applied to various products.
[0132] For example, the electronic device 200 may be implemented as various base stations. The base station may be implemented as any type of evolved Node B (eNB) or gNB (5G base station). eNBs include, for example, macro eNBs and small eNBs. Small eNBs may be eNBs that cover cells smaller than macro cells, such as pico eNBs, micro eNBs, and home (femto) eNBs. Similar situations may also apply to gNBs. Alternatively, the base station may be implemented as any other type of base station, such as a NodeB and a base transceiver station (BTS). The base station may include: a main body (also referred to as a base station device) configured to control wireless communications; and one or more remote radio heads (RRHs) arranged in a different place from the main body. In addition, various types of user equipment may work as a base station by temporarily or semi-permanently performing base station functions.
[0133] The electronic device 100 may be implemented as various user devices. The user device may be implemented as a mobile terminal (such as a smart phone, a tablet personal computer (PC), a notebook PC, a portable game terminal, a portable / dongle-type mobile router, and a digital camera) or a vehicle-mounted terminal (such as a car navigation device). The user device may also be implemented as a terminal that performs machine-to-machine (M2M) communication (also referred to as a machine type communication (MTC) terminal). In addition, the user device may be a wireless communication module (such as an integrated circuit module including a single chip) installed on each of the above-mentioned terminals.
[0134] [Application examples for base stations]
[0135] (First application example)
[0136] Fig.17 800 is a block diagram showing a first example of a schematic configuration of an eNB or gNB to which the technology of the present disclosure can be applied. Note that the following description takes eNB as an example, but can also be applied to gNB. The eNB 800 includes one or more antennas 810 and a base station device 820. The base station device 820 and each antenna 810 can be connected to each other via an RF cable.
[0137] Each of the antennas 810 includes a single or multiple antenna elements (such as multiple antenna elements included in a multiple-input multiple-output (MIMO) antenna) and is used for the base station device 820 to transmit and receive wireless signals. Fig.17 As shown, the eNB 800 may include multiple antennas 810. For example, the multiple antennas 810 may be compatible with multiple frequency bands used by the eNB 800. Fig.17 An example is shown in which the eNB 800 includes a plurality of antennas 810 , but the eNB 800 may also include a single antenna 810 .
[0138] The base station device 820 includes a controller 821 , a memory 822 , a network interface 823 , and a wireless communication interface 825 .
[0139] The controller 821 may be, for example, a CPU or a DSP, and operates various functions of the higher layers of the base station device 820. For example, the controller 821 generates a data packet based on the data in the signal processed by the wireless communication interface 825, and transmits the generated packet via the network interface 823. The controller 821 may bundle data from a plurality of baseband processors to generate a bundled packet, and transmit the generated bundled packet. The controller 821 may have a logical function to perform the following control: the control may be such as radio resource control, radio bearer control, mobility management, admission control, and scheduling. The control may be performed in conjunction with a nearby eNB or core network node. The memory 822 includes a RAM and a ROM, and stores programs executed by the controller 821 and various types of control data (such as a terminal list, transmission power data, and scheduling data).
[0140] The network interface 823 is a communication interface for connecting the base station device 820 to the core network 824. The controller 821 can communicate with the core network node or another eNB via the network interface 823. In this case, the eNB 800 and the core network node or other eNBs can be connected to each other through a logical interface (such as an S1 interface and an X2 interface). The network interface 823 can also be a wired communication interface or a wireless communication interface for a wireless backhaul line. If the network interface 823 is a wireless communication interface, the network interface 823 can use a higher frequency band for wireless communication compared to the frequency band used by the wireless communication interface 825.
[0141] The wireless communication interface 825 supports any cellular communication scheme (such as long term evolution (LTE) and LTE-Advanced), and provides a wireless connection to a terminal located in a cell of the eNB 800 via an antenna 810. The wireless communication interface 825 may generally include, for example, a baseband (BB) processor 826 and an RF circuit 827. The BB processor 826 may perform, for example, encoding / decoding, modulation / demodulation, and multiplexing / demultiplexing, and perform various types of signal processing of layers (e.g., L1, medium access control (MAC), radio link control (RLC), and packet data convergence protocol (PDCP)). Instead of the controller 821, the BB processor 826 may have a part or all of the above-mentioned logical functions. The BB processor 826 may be a memory storing a communication control program, or a module including a processor configured to execute a program and related circuits. Updating the program may change the function of the BB processor 826. The module may be a card or a blade inserted into a slot of the base station device 820. Alternatively, the module may also be a chip mounted on a card or a blade. Meanwhile, the RF circuit 827 may include, for example, a mixer, a filter, and an amplifier, and transmits and receives a wireless signal via the antenna 810 .
[0142] like Fig.17As shown, the wireless communication interface 825 may include multiple BB processors 826. For example, the multiple BB processors 826 may be compatible with multiple frequency bands used by the eNB 800. Fig.17 As shown, the wireless communication interface 825 may include multiple RF circuits 827. For example, the multiple RF circuits 827 may be compatible with multiple antenna elements. Fig.17 An example is shown in which the wireless communication interface 825 includes a plurality of BB processors 826 and a plurality of RF circuits 827 , but the wireless communication interface 825 may also include a single BB processor 826 or a single RF circuit 827 .
[0143] exist Fig.17 In the illustrated eNB 800, the transceiver of the electronic device 200 may be implemented by the wireless communication interface 825. At least part of the functions may also be implemented by the controller 821. For example, the controller 821 may configure the interference beam measurement performed by the UE and obtain the result of the interference beam measurement by executing the functions of the acquisition unit 201, the providing unit 202, and the generating unit 203.
[0144] (Second application example)
[0145] Fig.18 830 is a block diagram showing a second example of a schematic configuration of an eNB or gNB to which the technology of the present disclosure can be applied. Note that similarly, the following description takes the eNB as an example, but can also be applied to the gNB. The eNB 830 includes one or more antennas 840, a base station device 850, and an RRH 860. The RRH 860 and each antenna 840 can be connected to each other via an RF cable. The base station device 850 and the RRH 860 can be connected to each other via a high-speed line such as an optical fiber cable.
[0146] Each of the antennas 840 includes a single or multiple antenna elements (such as multiple antenna elements included in a MIMO antenna) and is used for the RRH 860 to transmit and receive wireless signals. Fig.18 As shown, the eNB 830 may include multiple antennas 840. For example, the multiple antennas 840 may be compatible with multiple frequency bands used by the eNB 830. Fig.18 An example is shown in which the eNB 830 includes a plurality of antennas 840 , but the eNB 830 may also include a single antenna 840 .
[0147] The base station device 850 includes a controller 851, a memory 852, a network interface 853, a wireless communication interface 855, and a connection interface 857. The controller 851, the memory 852, and the network interface 853 are similar to the reference Fig.17 The controller 821, memory 822 and network interface 823 described are the same.
[0148] The wireless communication interface 855 supports any cellular communication scheme (such as LTE and LTE-Advanced), and provides wireless communication to a terminal located in a sector corresponding to the RRH 860 via the RRH 860 and the antenna 840. The wireless communication interface 855 may generally include, for example, a BB processor 856. In addition to the BB processor 856 being connected to the RF circuit 864 of the RRH 860 via the connection interface 857, the BB processor 856 is connected to the reference RF circuit 864 of the RRH 860. Fig.17 The same as the BB processor 826 described above. Fig.18 As shown, the wireless communication interface 855 may include multiple BB processors 856. For example, the multiple BB processors 856 may be compatible with multiple frequency bands used by the eNB 830. Fig.18 An example is shown in which the wireless communication interface 855 includes a plurality of BB processors 856 , but the wireless communication interface 855 may also include a single BB processor 856 .
[0149] The connection interface 857 is an interface for connecting the base station device 850 (wireless communication interface 855) to the RRH 860. The connection interface 857 may also be a communication module for connecting the base station device 850 (wireless communication interface 855) to the RRH 860 for communication in the above-mentioned high-speed line.
[0150] The RRH 860 includes a connection interface 861 and a wireless communication interface 863 .
[0151] The connection interface 861 is an interface for connecting the RRH 860 (wireless communication interface 863) to the base station device 850. The connection interface 861 may also be a communication module for communication in the above-mentioned high-speed line.
[0152] The wireless communication interface 863 transmits and receives wireless signals via the antenna 840. The wireless communication interface 863 may generally include, for example, an RF circuit 864. The RF circuit 864 may include, for example, a mixer, a filter, and an amplifier, and transmits and receives wireless signals via the antenna 840. Fig.18 As shown, the wireless communication interface 863 may include multiple RF circuits 864. For example, the multiple RF circuits 864 may support multiple antenna elements. Fig.18 An example is shown in which the wireless communication interface 863 includes a plurality of RF circuits 864 , but the wireless communication interface 863 may also include a single RF circuit 864 .
[0153] exist Fig.18In the illustrated eNB 830, the transceiver of the electronic device 200 may be implemented by the wireless communication interface 855 and / or the wireless communication interface 863. At least part of the functions may also be implemented by the controller 851. For example, the controller 851 may configure the interference beam measurement performed by the UE and obtain the result of the interference beam measurement by executing the functions of the acquisition unit 201, the providing unit 202, and the generating unit 203.
[0154] [Application examples on user devices]
[0155] (First application example)
[0156] Fig.19 900 is a block diagram showing an example of a schematic configuration of a smartphone 900 to which the technology of the present disclosure can be applied. The smartphone 900 includes a processor 901, a memory 902, a storage device 903, an external connection interface 904, a camera device 906, a sensor 907, a microphone 908, an input device 909, a display device 910, a speaker 911, a wireless communication interface 912, one or more antenna switches 915, one or more antennas 916, a bus 917, a battery 918, and an auxiliary controller 919.
[0157] The processor 901 may be, for example, a CPU or a system on chip (SoC), and controls the functions of the application layer and other layers of the smartphone 900. The memory 902 includes a RAM and a ROM, and stores data and programs executed by the processor 901. The storage device 903 may include a storage medium such as a semiconductor memory and a hard disk. The external connection interface 904 is an interface for connecting an external device such as a memory card and a universal serial bus (USB) device to the smartphone 900.
[0158] The camera 906 includes an image sensor such as a charge coupled device (CCD) and a complementary metal oxide semiconductor (CMOS), and generates a captured image. The sensor 907 may include a group of sensors such as a measurement sensor, a gyro sensor, a geomagnetic sensor, and an acceleration sensor. The microphone 908 converts the sound input to the smart phone 900 into an audio signal. The input device 909 includes, for example, a touch sensor, a keypad, a keyboard, a button, or a switch configured to detect a touch on the screen of the display device 910, and receives an operation or information input from a user. The display device 910 includes a screen such as a liquid crystal display (LCD) and an organic light emitting diode (OLED) display, and displays an output image of the smart phone 900. The speaker 911 converts an audio signal output from the smart phone 900 into sound.
[0159] The wireless communication interface 912 supports any cellular communication scheme (such as LTE and LTE-Advanced), and performs wireless communication. The wireless communication interface 912 may generally include, for example, a BB processor 913 and an RF circuit 914. The BB processor 913 may perform, for example, encoding / decoding, modulation / demodulation, and multiplexing / demultiplexing, and perform various types of signal processing for wireless communication. Meanwhile, the RF circuit 914 may include, for example, a mixer, a filter, and an amplifier, and transmit and receive wireless signals via an antenna 916. Note that although the figure shows a situation where one RF link is connected to one antenna, this is only schematic, and also includes a situation where one RF link is connected to multiple antennas through multiple phase shifters. The wireless communication interface 912 may be a chip module on which the BB processor 913 and the RF circuit 914 are integrated. As shown in FIG. Fig.19 As shown, the wireless communication interface 912 may include multiple BB processors 913 and multiple RF circuits 914. Fig.19 An example is shown in which the wireless communication interface 912 includes a plurality of BB processors 913 and a plurality of RF circuits 914 , but the wireless communication interface 912 may also include a single BB processor 913 or a single RF circuit 914 .
[0160] In addition, in addition to the cellular communication scheme, the wireless communication interface 912 can support other types of wireless communication schemes, such as short-range wireless communication schemes, near field communication schemes, and wireless local area network (LAN) schemes. In this case, the wireless communication interface 912 can include a BB processor 913 and an RF circuit 914 for each wireless communication scheme.
[0161] Each of the antenna switches 915 switches a connection destination of the antenna 916 between a plurality of circuits (eg, circuits for different wireless communication schemes) included in the wireless communication interface 912 .
[0162] Each of the antennas 916 includes a single or multiple antenna elements (such as multiple antenna elements included in a MIMO antenna) and is used for the wireless communication interface 912 to transmit and receive wireless signals. Fig.19 As shown, the smart phone 900 may include multiple antennas 916. Fig.19 An example is shown in which the smartphone 900 includes a plurality of antennas 916 , but the smartphone 900 may also include a single antenna 916 .
[0163] In addition, the smartphone 900 may include an antenna 916 for each wireless communication scheme. In this case, the antenna switch 915 may be omitted from the configuration of the smartphone 900.
[0164] The bus 917 connects the processor 901, the memory 902, the storage device 903, the external connection interface 904, the camera 906, the sensor 907, the microphone 908, the input device 909, the display device 910, the speaker 911, the wireless communication interface 912, and the auxiliary controller 919 to each other. Fig.19 The various blocks of the smartphone 900 shown are supplied with power, the feed lines being partially shown as dashed lines in the figure. The auxiliary controller 919 operates the minimum necessary functions of the smartphone 900, for example in a sleep mode.
[0165] exist Fig.19 In the illustrated smart phone 900, the transceiver of the electronic device 100 may be implemented by the wireless communication interface 912. At least part of the functions may also be implemented by the processor 901 or the auxiliary controller 919. For example, the processor 901 or the auxiliary controller 919 may perform interference beam measurement for neighboring cells and report the measurement results by executing the functions of the determination unit 101, the reporting unit 102, and the execution unit 103.
[0166] (Second application example)
[0167] Fig. 20 9 is a block diagram showing an example of a schematic configuration of a car navigation device 920 to which the technology of the present disclosure can be applied. The car navigation device 920 includes a processor 921, a memory 922, a global positioning system (GPS) module 924, a sensor 925, a data interface 926, a content player 927, a storage medium interface 928, an input device 929, a display device 930, a speaker 931, a wireless communication interface 933, one or more antenna switches 936, one or more antennas 937, and a battery 938.
[0168] The processor 921 may be, for example, a CPU or an SoC, and controls a navigation function and another function of the car navigation device 920. The memory 922 includes a RAM and a ROM, and stores data and a program executed by the processor 921.
[0169] The GPS module 924 measures the position (such as latitude, longitude and altitude) of the car navigation device 920 using GPS signals received from GPS satellites. The sensor 925 may include a group of sensors such as a gyro sensor, a geomagnetic sensor and an air pressure sensor. The data interface 926 is connected to, for example, the vehicle network 941 via an unshown terminal and acquires data (such as vehicle speed data) generated by the vehicle.
[0170] The content player 927 reproduces content stored in a storage medium such as a CD and a DVD, which is inserted into the storage medium interface 928. The input device 929 includes, for example, a touch sensor, a button, or a switch configured to detect a touch on the screen of the display device 930, and receives an operation or information input from a user. The display device 930 includes a screen such as an LCD or an OLED display, and displays an image of a navigation function or reproduced content. The speaker 931 outputs a sound of a navigation function or reproduced content.
[0171] The wireless communication interface 933 supports any cellular communication scheme (such as LTE and LTE-Advanced), and performs wireless communication. The wireless communication interface 933 may generally include, for example, a BB processor 934 and an RF circuit 935. The BB processor 934 may perform, for example, encoding / decoding, modulation / demodulation, and multiplexing / demultiplexing, and perform various types of signal processing for wireless communication. Meanwhile, the RF circuit 935 may include, for example, a mixer, a filter, and an amplifier, and transmit and receive wireless signals via an antenna 937. The wireless communication interface 933 may also be a chip module on which the BB processor 934 and the RF circuit 935 are integrated. Fig. 20 As shown, the wireless communication interface 933 may include multiple BB processors 934 and multiple RF circuits 935. Fig. 20 An example is shown in which the wireless communication interface 933 includes a plurality of BB processors 934 and a plurality of RF circuits 935 , but the wireless communication interface 933 may also include a single BB processor 934 or a single RF circuit 935 .
[0172] In addition, in addition to the cellular communication scheme, the wireless communication interface 933 can support other types of wireless communication schemes, such as short-range wireless communication schemes, near field communication schemes, and wireless LAN schemes. In this case, for each wireless communication scheme, the wireless communication interface 933 can include a BB processor 934 and an RF circuit 935.
[0173] Each of the antenna switches 936 switches a connection destination of the antenna 937 between a plurality of circuits included in the wireless communication interface 933 , such as circuits for different wireless communication schemes.
[0174] Each of the antennas 937 includes a single or multiple antenna elements (such as multiple antenna elements included in a MIMO antenna), and is used for the wireless communication interface 933 to transmit and receive wireless signals. Fig. 20 As shown, the car navigation device 920 may include multiple antennas 937. Fig. 20 An example is shown in which the car navigation device 920 includes a plurality of antennas 937 , but the car navigation device 920 may also include a single antenna 937 .
[0175] Furthermore, the car navigation device 920 may include an antenna 937 for each wireless communication scheme. In this case, the antenna switch 936 may be omitted from the configuration of the car navigation device 920.
[0176] Battery 938 is fed via a feed line to Fig. 20 The respective blocks of the illustrated car navigation device 920 are supplied with electric power, and feed lines are partially illustrated as dotted lines in the figure. The battery 938 accumulates electric power supplied from the vehicle.
[0177] exist Fig. 20 In the illustrated car navigation device 920, the transceiver of the electronic device 100 may be implemented by the wireless communication interface 933. At least a portion of the functions may also be implemented by the processor 921. For example, the processor 921 may perform interference beam measurement for neighboring cells and report the measurement results by executing the functions of the determination unit 101, the reporting unit 102, and the execution unit 103.
[0178] The technology of the present disclosure may also be implemented as an in-vehicle system (or vehicle) 940 including a car navigation device 920, an in-vehicle network 941, and one or more blocks in a vehicle module 942. The vehicle module 942 generates vehicle data (such as vehicle speed, engine speed, and fault information), and outputs the generated data to the in-vehicle network 941.
[0179] The basic principles of the present disclosure are described above in conjunction with specific embodiments. However, it should be pointed out that for those skilled in the art, it is understandable that all or any steps or components of the methods and devices of the present disclosure can be implemented in any computing device (including processors, storage media, etc.) or a network of computing devices in the form of hardware, firmware, software, or a combination thereof. This can be achieved by those skilled in the art using their basic circuit design knowledge or basic programming skills after reading the description of the present disclosure.
[0180] Furthermore, the present disclosure also proposes a program product storing machine-readable instruction codes. When the instruction codes are read and executed by a machine, the method according to the embodiment of the present disclosure can be executed.
[0181] Accordingly, the storage medium for carrying the program product storing the machine-readable instruction code is also included in the disclosure of the present disclosure, including but not limited to a floppy disk, an optical disk, a magneto-optical disk, a memory card, a memory stick, and the like.
[0182] When the present disclosure is implemented by software or firmware, the data is transferred from a storage medium or a network to a computer (eg, Fig.21The general-purpose computer 2100 shown in the figure is installed with the programs constituting the software, and when the various programs are installed, the computer can execute various functions, etc.
[0183] exist Fig.21 In the embodiment of the present invention, a central processing unit (CPU) 2101 performs various processes according to a program stored in a read-only memory (ROM) 2102 or a program loaded from a storage section 2108 to a random access memory (RAM) 2103. In the RAM 2103, data required when the CPU 2101 performs various processes and the like is also stored as needed. The CPU 2101, the ROM 2102, and the RAM 2103 are connected to each other via a bus 2104. An input / output interface 2105 is also connected to the bus 2104.
[0184] The following components are connected to the input / output interface 2105: an input section 2106 (including a keyboard, a mouse, etc.), an output section 2107 (including a display such as a cathode ray tube (CRT), a liquid crystal display (LCD), etc., and a speaker, etc.), a storage section 2108 (including a hard disk, etc.), a communication section 2109 (including a network interface card such as a LAN card, a modem, etc.). The communication section 2109 performs communication processing via a network such as the Internet. A drive 2110 may also be connected to the input / output interface 2105 as needed. A removable medium 2111 such as a magnetic disk, an optical disk, a magneto-optical disk, a semiconductor memory, etc. is installed on the drive 2110 as needed, so that a computer program read therefrom is installed in the storage section 2108 as needed.
[0185] In the case where the above-described series of processing is implemented by software, a program constituting the software is installed from a network such as the Internet or a storage medium such as the removable medium 2111 .
[0186] It should be understood by those skilled in the art that such storage media is not limited to Fig.21 The removable medium 2111 shown has a program stored therein and is distributed separately from the device to provide the program to the user. Examples of the removable medium 2111 include magnetic disks (including floppy disks (registered trademark)), optical disks (including compact disk read-only memory (CD-ROM) and digital versatile disks (DVD)), magneto-optical disks (including minidiscs (MD) (registered trademark)), and semiconductor memories. Alternatively, the storage medium may be a ROM 2102, a hard disk included in the storage section 2108, or the like, in which the program is stored and distributed to the user together with the device containing them.
[0187] It should also be noted that in the apparatus, method and system of the present disclosure, each component or each step can be decomposed and / or recombined. These decompositions and / or recombinations should be regarded as equivalent schemes of the present disclosure. In addition, the steps of performing the above series of processes can naturally be performed in chronological order according to the order of description, but do not necessarily need to be performed in chronological order. Some steps can be performed in parallel or independently of each other.
[0188] Finally, it should be noted that the terms "comprises", "includes" or any other variations thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device that includes a series of elements includes not only those elements, but also includes other elements that are not explicitly listed, or also includes elements that are inherent to such process, method, article or device. In addition, in the absence of more restrictions, the elements defined by the sentence "comprises a ..." do not exclude the existence of other identical elements in the process, method, article or device that includes the elements.
[0189] Although the embodiments of the present disclosure are described in detail above in conjunction with the accompanying drawings, it should be understood that the embodiments described above are only used to illustrate the present disclosure and do not constitute a limitation of the present disclosure. For those skilled in the art, various modifications and changes can be made to the above embodiments without departing from the essence and scope of the present disclosure. Therefore, the scope of the present disclosure is limited only by the attached claims and their equivalent meanings.
Claims
1. An electronic device on a user equipment side for wireless communication, comprising: The processing circuit is configured to: Determine a resource for transmitting a reference signal of a neighboring cell that is expected to be used for interference beam measurement, wherein the interference beam measurement is used to measure the degree of interference of a transmit beam of a neighboring cell on a serving cell; reporting a resource indicator of the determined resource to a base station of the serving cell; performing the interference beam measurement based on configuration information from the base station; as well as reporting the measurement result of the interference beam measurement to the base station, The measurement result includes resource indicators of N resources of the service cell for sending reference signals, wherein, in the beam pairs used for the interference beam measurement, the N beam pairs consisting of the transmit beam corresponding to the N resources and the receive beam of the user equipment have the best beam quality considering the interference from neighboring cells, wherein N is a natural number.
2. The electronic device according to claim 1, wherein: The processing circuit is configured to determine the resource based on information collected during initial access and / or mobility-related configuration.
3. The electronic device according to claim 1, wherein: The configuration information includes one or more of the following: resources of the serving cell used for the interference beam measurement; resources of the neighboring cell for sending reference signals; periodic configuration related to the interference beam measurement; a scanning mechanism for the interference beam; and a category of the reference signal.
4. The electronic device according to claim 3, wherein: The periodic configuration related to the interference beam measurement includes one or more of the following: periodic measurement, non-periodic measurement, and semi-static measurement.
5. The electronic device according to claim 3, wherein: The scanning mechanism of the interference beam includes one of the following: the neighboring cell base station scans the transmit beam, and the user equipment of the serving cell scans the receive beam; the neighboring cell base station scans the transmit beam, and the user equipment of the serving cell fixes the receive beam; and the neighboring cell base station fixes the transmit beam, and the user equipment of the serving cell scans the receive beam.
6. The electronic device according to claim 1, wherein: The processing circuit is further configured to receive the configuration information via radio resource control signaling.
7. The electronic device according to claim 1, wherein: The reference signal is a synchronization signal, and the resource indicator is a synchronization signal block resource indicator, wherein the base station of the neighboring cell scans the transmit beam, and the user equipment of the serving cell scans the receive beam.
8. The electronic device according to claim 1, wherein: The reference signal is a channel state information reference signal, and the resource indicator is a channel state information reference signal resource indicator.
9. The electronic device according to claim 8, wherein: The processing circuit is configured to determine a scanning mechanism for interference beams based on specific parameters in radio resource control signaling.
10. The electronic device according to claim 9, wherein: The specific parameter is InterferenceMeasureRSRepetition. When the specific parameter is set to ON, the scanning mechanism of the interference beam is: the neighboring cell base station fixes the transmit beam, and the user equipment of the serving cell scans the receive beam; when the specific parameter is set to OFF, the scanning mechanism of the interference beam is: the neighboring cell base station scans the transmit beam, and the user equipment of the serving cell fixes the receive beam.
11. The electronic device according to claim 1, wherein: The processing circuit is configured to: For each beam pair used for reference signal transmission and reception of the serving cell, measure the physical layer reference signal received power; For each beam pair formed by a transmit beam of a base station of a neighboring cell and a receive beam of a user equipment of a serving cell used for the interference beam measurement, measuring a physical layer received signal strength indication, or measuring the sum of interference and noise on a resource unit carrying a reference signal; as well as The physical layer reference signal reception quality of each beam pair of the serving cell in consideration of interference from neighboring cells is calculated based on the measured physical layer reference signal reception power and the physical layer received signal strength indication, or the physical layer signal to interference and noise ratio of each beam pair of the serving cell in consideration of interference from neighboring cells is calculated based on the measured physical layer reference signal reception power and the sum of interference and noise.
12. The electronic device according to claim 11, wherein: The processing circuit is configured to determine, based on the calculated physical layer reference signal reception quality or physical layer signal to interference plus noise ratio, the N beam pairs of the serving cell with the highest physical layer reference signal reception quality or physical layer signal to interference plus noise ratio as the N beam pairs with the best beam quality taking into account the interference from neighboring cells.
13. The electronic device according to claim 12, wherein: The measurements also include an indication of beam quality associated with the N beam pairs.
14. The electronic device according to claim 13, wherein: The indication of the beam quality includes a quantized value of a physical layer reference signal reception quality or a physical layer signal to interference and noise ratio associated with each of the N beam pairs.
15. The electronic device according to claim 14, wherein: The processing circuit is also configured to take the highest physical layer reference signal reception quality or physical layer signal to interference plus noise ratio as a benchmark, and use the differential value of the physical layer reference signal reception quality or physical layer signal to interference plus noise ratio associated with other beam pairs among the N beam pairs relative to the benchmark as an indication of the beam quality of the other beams.
16. The electronic device according to claim 14, wherein: The indication of the beam quality also includes an indication of whether the physical layer reference signal received power of each of the N beam pairs is above a predetermined threshold or an indication of the value range of the physical layer reference signal received power.
17. The electronic device according to claim 13, wherein: The indication of beam quality includes a quantized value of a physical layer reference signal received power of each of the N beam pairs, wherein the processing circuit is configured to use the highest physical layer reference signal received power as a reference, and to use the differential values of other physical layer reference signal received powers relative to the reference as quantized values of the physical layer reference signal received powers of other beam pairs, and the indication of beam quality also includes information indicating the position of the highest physical layer reference signal received power in the measurement result.
18. The electronic device according to claim 11, wherein: The processing circuit is configured to determine, based on the measured physical layer reference signal reception power, the N beam pairs of the serving cell with the highest physical layer reference signal reception power as the N beam pairs with the best beam quality taking into account the interference from neighboring cells, and report the resource indicator of the reference signal resource corresponding to the transmitting beam in the N beam pairs as the measurement result to the base station, wherein N is a natural number and the measurement result also includes interference information associated with the N beam pairs.
19. The electronic device according to claim 18, wherein: The measurement result also includes a quantized value of the physical layer reference signal receiving power of each of the N beam pairs, wherein the processing circuit is configured to use the highest physical layer reference signal receiving power as a benchmark and use the differential value of other physical layer reference signal receiving powers relative to the benchmark as the quantized value of the physical layer reference signal receiving power of other beam pairs.
20. The electronic device according to claim 18, wherein: The interference information includes one of the following: an indication of whether the physical layer reference signal reception quality or the physical layer signal to interference plus noise ratio associated with each of the N beam pairs is above a predetermined threshold; an indication of the value range of the physical layer reference signal reception quality or the physical layer signal to interference plus noise ratio associated with each of the N beam pairs.
21. The electronic device according to claim 18, wherein: The interference information includes information indicating the order of the N beam pairs according to physical layer reference signal reception quality or physical layer signal to interference and noise ratio.
22. The electronic device according to claim 11, wherein: The processing circuit is also configured to determine, based on the calculated physical layer reference signal reception quality or physical layer signal to interference and noise ratio, the M beam pairs that cause the strongest or weakest interference to the serving cell among the beam pairs formed by the transmit beam of the base station of the neighboring cell and the receive beam of the user equipment of the serving cell, and include the resource indicator of the resource of the reference signal of the neighboring cell corresponding to the transmit beam in the M beam pairs and the identifier of the neighboring cell in the measurement result.
23. The electronic device according to claim 1, wherein: The processing circuit is also configured to report information indicating whether joint measurement is supported to the base station, wherein the joint measurement includes simultaneously measuring resources of a reference signal for the interference beam measurement and resources for mobility measurement in a quasi-co-location of the measurement space.
24. An electronic device at a base station side for wireless communication, comprising: The processing circuit is configured to: Acquire a resource indicator to be measured from a user equipment of a serving cell, where the resource indicator to be measured indicates a resource of a reference signal sent by a neighboring cell that is expected to be used for interference beam measurement, where the interference beam measurement is used to measure the degree of interference of a transmit beam of a neighboring cell on the serving cell; Providing the resource indicator to be measured to the base station of the neighboring cell; generating configuration information for the interference beam measurement to provide to the user equipment; as well as obtaining a measurement result of the interference beam measurement from the user equipment, The measurement result includes resource indicators of N resources of the serving cell for sending reference signals, wherein, in the beam pairs used for the interference beam measurement, the N beam pairs consisting of the transmit beams corresponding to the N resources and the receive beams of the user equipment have the best beam quality considering the interference from neighboring cells, wherein N is a natural number.
25. The electronic device according to claim 24, wherein: The processing circuit is configured to provide the resource indicator to be measured to the base station of the neighboring cell through Xn signaling.
26. The electronic device according to claim 24, wherein: The reference signal is a channel state information reference signal or a synchronization signal, and the processing circuit is further configured to obtain feedback information for the resource indicator to be measured from the base station of the neighboring cell.
27. The electronic device according to claim 26, wherein: The feedback information includes one of the following: confirmation information; a modified indicator of the resource to be measured.
28. The electronic device according to claim 24, wherein: The configuration information includes one or more of the following: resources of the serving cell used for the interference beam measurement; resources of the neighboring cell for sending reference signals; periodic configuration related to the interference beam measurement; a scanning mechanism for the interference beam; and a category of the reference signal.
29. The electronic device according to claim 28, wherein: The periodic configuration related to the interference beam measurement includes one or more of the following: periodic measurement, non-periodic measurement, and semi-static measurement.
30. The electronic device according to claim 28, wherein: The scanning mechanism of the interference beam includes one of the following: the neighboring cell base station scans the transmit beam, and the user equipment of the serving cell scans the receive beam; the neighboring cell base station scans the transmit beam, and the user equipment of the serving cell fixes the receive beam; and the neighboring cell base station fixes the transmit beam, and the user equipment of the serving cell scans the receive beam.
31. The electronic device according to claim 24, wherein: The processing circuit is further configured to provide the configuration information via radio resource control signaling.
32. The electronic device according to claim 31, wherein: The processing circuit is configured to indicate a scanning mechanism of interference beams to the user equipment based on specific parameters in radio resource control signaling.
33. The electronic device according to claim 32, wherein: The specific parameter is InterferenceMeasureRSRepetition. When the specific parameter is set to ON, the scanning mechanism of the interference beam is: the neighboring cell base station fixes the transmit beam, and the user equipment of the serving cell scans the receive beam; when the specific parameter is set to OFF, the scanning mechanism of the interference beam of the neighboring cell is: the neighboring cell base station scans the transmit beam, and the user equipment of the serving cell fixes the receive beam.
34. The electronic device according to claim 24, wherein: The measurements also include an indication of beam quality associated with the N beam pairs.
35. The electronic device according to claim 34, wherein: The indication of the beam quality includes a quantized value of a physical layer reference signal reception quality or a physical layer signal to interference and noise ratio associated with each of the N beam pairs.
36. The electronic device according to claim 24, wherein: The indication of the beam quality also includes an indication of whether the physical layer reference signal received power of each of the N beam pairs is above a predetermined threshold or an indication of the value range of the physical layer reference signal received power.
37. The electronic device according to claim 24, wherein: The processing circuit is further configured to receive a resource indicator to be measured from a base station of a neighboring cell, and provide feedback information on the resource indicator to be measured to the base station of the neighboring cell.
38. A method for a user equipment side of wireless communication, comprising: Determine a resource for transmitting a reference signal of a neighboring cell that is expected to be used for interference beam measurement, wherein the interference beam measurement is used to measure the degree of interference of a transmit beam of a neighboring cell on a serving cell; reporting a resource indicator of the determined resource to a base station of the serving cell; performing the interference beam measurement based on configuration information from the base station; as well as reporting the measurement result of the interference beam measurement to the base station, The measurement result includes resource indicators of N resources of the service cell for sending reference signals, wherein, in the beam pairs used for the interference beam measurement, the N beam pairs consisting of the transmit beam corresponding to the N resources and the receive beam of the user equipment have the best beam quality considering the interference from neighboring cells, wherein N is a natural number.
39. A method for a base station side of wireless communication, comprising: Acquire a resource indicator to be measured from a user equipment of a serving cell, where the resource indicator to be measured indicates a resource of a reference signal sent by a neighboring cell that is expected to be used for interference beam measurement, where the interference beam measurement is used to measure the degree of interference of a transmit beam of a neighboring cell on the serving cell; Providing the resource indicator to be measured to the base station of the neighboring cell; generating configuration information for the interference beam measurement to provide to the user equipment; as well as obtaining a measurement result of the interference beam measurement from the user equipment, The measurement result includes resource indicators of N resources of the serving cell for sending reference signals, wherein, in the beam pairs used for the interference beam measurement, the N beam pairs consisting of the transmit beams corresponding to the N resources and the receive beams of the user equipment have the best beam quality considering the interference from neighboring cells, wherein N is a natural number.
40. A computer-readable storage medium having computer-executable instructions stored thereon, which, when executed by a processor, cause the processor to perform the method according to claim 38 or 39.
41. A computer program product comprising a computer program / instructions, wherein: The computer program / instructions, when executed by a processor, implement the steps of the method according to claim 38 or 39.
Citation Information
Patent Citations
Systems and methods related to flexible csi-rs configuration and associated feedback
CN106797649A
Method for feeding back reference signal information in multi-antenna wireless communication system and apparatus therefor
US20180097548A1