CN116582877A

CN116582877A - Incoming wave direction estimation method, terminal and network side equipment

Info

Publication number: CN116582877A
Application number: CN202210112347.XA
Authority: CN
Inventors: 简荣灵; 姜大洁; 沈晓冬; 黄伟; 郑凯立; 王臣玺; 王园园
Original assignee: Vivo Mobile Communication Co Ltd
Current assignee: Vivo Mobile Communication Co Ltd
Priority date: 2022-01-29
Filing date: 2022-01-29
Publication date: 2023-08-11
Also published as: WO2023143562A1

Abstract

The application discloses an incoming wave direction estimation method, a terminal and network side equipment, belonging to the technical field of wireless communication, wherein the incoming wave direction estimation method comprises the following steps: the BSC terminal measures one measurement signal sent by the network side equipment in a plurality of measurement ranges, and acquires N groups of sum and difference beams according to measurement results obtained in each measurement range; further, a group with the best signal energy and/or the best signal quality is selected from the N groups of sum and difference beams as the target sum and difference beams for estimating the incoming wave direction of the measurement signal. The embodiment of the application also provides a method for acquiring the incoming wave direction, which comprises the following steps: the BSC terminal measures a plurality of measurement signals sent by the network side equipment; the BSC terminal determines a measuring signal with the best signal energy and/or the best signal quality as a first signal according to the plurality of measuring signals; and the BSC terminal acquires the target incoming wave direction corresponding to the measurement parameter of the first signal according to the mapping relation between the measurement parameter and the incoming wave direction.

Description

Incoming wave direction estimation method, terminal and network side equipment

Technical Field

The application belongs to the technical field of wireless communication, and particularly relates to an incoming wave direction estimation method, a terminal and network side equipment.

Background

Backscattering (BSC) is a low power consumption communication technology, and can use micro hardware with lower power consumption to solve the problem of high power consumption in the conventional communication.

Fig. 1a is a BSC communication architecture in the related art, as shown in fig. 1a, a network side device is used as a BSC receiving end (Receiver) to be a radio frequency source, and is also a transmitting end of downlink data of a BSC terminal and a receiving end of uplink data of the BSC terminal, where the network side device directly communicates with the BSC terminal. This deployment architecture requires high receive sensitivity for the base station and the BSC terminals.

In BSC communication, BSC terminals change the amplitude and phase of the backscatter signal by controlling the switching load impedance or using transmission lines to effect modulation of the carrier wave in the received environment so that the BSC can receive and decode the backscatter signal. In a specific application, the BSC terminal may reflect the incoming wave signal of the network side device by 180 degrees by configuring a reflection array to form a backscatter signal. However, the premise of realizing the reflection of the incoming wave signal by the reflection array is that the incoming wave direction can be accurately estimated, so how to accurately acquire the incoming wave direction is a technical problem to be solved in the related art.

Disclosure of Invention

The embodiment of the application provides an incoming wave direction estimation method, a terminal and network side equipment, which can accurately acquire an incoming wave direction.

In a first aspect, there is provided an incoming wave direction estimation method, including: the BSC terminal measures a measurement signal sent by the network equipment in a plurality of measurement ranges; the BSC terminal obtains N groups of sum and difference beams according to measurement results obtained by the measurement ranges, wherein one measurement range corresponds to one group of sum and difference beams, one group of sum and difference beams comprises one sum beam and one difference beam, N is the number of the measurement ranges, and N is an integer greater than 1; and the BSC terminal estimates the incoming wave direction of the measurement signal according to a target and difference beam group, wherein the target and difference beam group is a group of sum and difference beams with the best signal energy and/or the best signal quality in the N groups of sum and difference beams.

In a second aspect, there is provided an incoming wave direction estimating apparatus including: the first measuring module is used for measuring one measuring signal sent by the network side equipment in a plurality of measuring ranges; the first acquisition module is used for acquiring N groups of sum and difference beams according to measurement results obtained from the measurement ranges, wherein one measurement range corresponds to one group of sum and difference beams, one group of sum and difference beams comprises one sum beam and one difference beam, N is the number of the measurement ranges, and N is an integer greater than 1; and the estimation module is used for estimating the incoming wave direction of the measurement signal according to a target and difference beam group, wherein the target and difference beam group is a group of sum and difference beams with the best signal energy and/or the best signal quality in the N groups of sum and difference beams.

In a third aspect, there is provided an incoming wave direction acquisition method, including: the BSC terminal measures a plurality of measurement signals sent by the network side equipment; the BSC terminal obtains measurement parameters of a first signal according to the measurement results, wherein the first signal is the measurement signal with the best signal energy and/or the best signal quality in the plurality of measurement signals; and the BSC terminal acquires a target incoming wave direction corresponding to the measurement parameter of the first signal.

In a fourth aspect, there is provided an incoming wave direction acquisition apparatus including: the second measuring module is used for measuring a plurality of measuring signals sent by the network side equipment; the second acquisition module is used for acquiring measurement parameters of a first signal according to measurement results, wherein the first signal is a measurement signal with the best signal energy and/or the best signal quality in the plurality of measurement signals; and the third acquisition module is used for acquiring the target incoming wave direction corresponding to the measurement parameter of the first signal.

In a fifth aspect, there is provided a method for transmitting a measurement signal, including: the network side equipment configures a mapping relation between a measurement parameter and an incoming wave direction according to a target parameter, wherein the target parameter comprises at least one of the following: the number of BSC terminals communicating with the network side equipment and the communication distance between the network side equipment and the BSC terminals; and the network side equipment transmits a plurality of measurement signals according to the mapping relation.

In a sixth aspect, there is provided a transmission apparatus for a measurement signal, comprising: the configuration module is used for configuring the mapping relation between the measurement parameters and the incoming wave direction according to target parameters, wherein the target parameters comprise at least one of the following: the number of BSC terminals communicating with the network side equipment and the communication distance between the network side equipment and the BSC terminals; and the sending module is used for sending a plurality of measurement signals according to the mapping relation.

In a seventh aspect, there is provided a terminal comprising a processor and a memory storing a program or instructions executable on the processor, which when executed by the processor, performs the steps of the method according to the first aspect, or performs the steps of the method according to the third aspect.

In an eighth aspect, a terminal is provided, comprising a processor and a communication interface, wherein the processor is configured to implement the steps of the method according to the first aspect, or to implement the steps of the method according to the third aspect, and the communication interface is configured to communicate with an external device.

In a ninth aspect, a network side device is provided, comprising a processor and a memory storing a program or instructions executable on the processor, which when executed by the processor, implement the steps of the method as described in the fifth aspect.

In a tenth aspect, a network side device is provided, which includes a processor and a communication interface, where the processor is configured to implement the steps of the method according to the fifth aspect, and the communication interface is configured to communicate with an external device.

In an eleventh aspect, there is provided an incoming wave direction estimation system, including: a terminal operable to perform the steps of the method according to the third aspect, and a network side device operable to perform the steps of the method according to the fifth aspect.

In a twelfth aspect, there is provided a readable storage medium having stored thereon a program or instructions which when executed by a processor, performs the steps of the method according to the first aspect, or performs the steps of the method according to the third aspect, or performs the steps of the method according to the fifth aspect.

In a thirteenth aspect, there is provided a chip comprising a processor and a communication interface, the communication interface and the processor being coupled, the processor being adapted to run a program or instructions, to carry out the steps of the method according to the first aspect, or to carry out the steps of the method according to the third aspect, or to carry out the steps of the method according to the fifth aspect.

In a fourteenth aspect, there is provided a computer program/program product stored in a storage medium, the computer program/program product being executable by at least one processor to perform the steps of the method as described in the first aspect, or to perform the steps of the method as described in the third aspect, or to perform the steps of the method as described in the fifth aspect.

By adopting the incoming wave direction estimation scheme provided by the embodiment of the application, the BSC terminal measures one measurement signal sent by the network side equipment in a plurality of measurement ranges, obtains a plurality of groups of sum and difference beams according to the measurement results obtained by the measurement ranges, and selects a group of sum and difference beams with the best signal energy and/or the best signal quality for carrying out incoming wave direction estimation, thereby increasing the estimation range of the incoming wave direction, improving the estimation precision of the incoming wave direction and further improving the estimation precision of the incoming wave direction. By adopting the incoming wave direction acquisition scheme provided by the embodiment of the application, the network side equipment can configure the mapping relation between the measurement parameters of the BSC terminal and the incoming wave direction, the BSC terminal can accurately acquire the incoming wave direction by measuring a plurality of measurement signals sent by the network side equipment, and the system power consumption caused by wave beam alignment can be reduced.

Drawings

Fig. 1a shows an architecture diagram of a wireless communication system to which embodiments of the present application are applicable;

FIG. 1b is a schematic flow chart of an incoming wave direction acquisition in an embodiment of the application;

fig. 2 is a schematic flow chart of an incoming wave direction estimation method according to an embodiment of the present application;

FIG. 3a is a schematic diagram of a load connection in an embodiment of the present application;

FIG. 3b is a schematic diagram of a load connection in accordance with an embodiment of the present application;

FIG. 3c is a schematic diagram of a load connection in accordance with an embodiment of the present application;

fig. 4 is a schematic flow chart of another method for estimating an incoming wave direction according to an embodiment of the present application;

FIG. 5 is a schematic diagram showing a connection implementation of an antenna to a load impedance in an embodiment of the present application;

FIG. 6 shows a schematic reflection of a signal in an embodiment of the application;

FIG. 7 shows a schematic reflection of another signal in an embodiment of the application;

fig. 8 is a schematic flow chart of a measurement signal acquisition method according to an embodiment of the present application;

FIG. 9 is a schematic diagram of a scenario of transmission and reception of a measurement signal in an embodiment of the present application;

fig. 10 is a schematic flow chart of a method for transmitting a measurement signal according to an embodiment of the present application;

Fig. 11 is a schematic structural diagram of an incoming wave direction estimating device according to an embodiment of the present application;

fig. 12 is a schematic structural diagram of an incoming wave direction acquisition device according to an embodiment of the present application;

fig. 13 is a schematic structural diagram of a transmitting device for measuring signals according to an embodiment of the present application;

fig. 14 is a schematic structural diagram of a communication device according to an embodiment of the present application;

fig. 15 shows a schematic hardware structure of a terminal according to an embodiment of the present application;

fig. 16 shows a schematic hardware structure of a network side device according to an embodiment of the present application.

Detailed Description

The technical solutions of the embodiments of the present application will be clearly described below with reference to the drawings in the embodiments of the present application, and it is apparent that the described embodiments are some embodiments of the present application, but not all embodiments. All other embodiments, which are derived by a person skilled in the art based on the embodiments of the application, fall within the scope of protection of the application.

The terms first, second and the like in the description and in the claims, are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It is to be understood that the terms so used are interchangeable under appropriate circumstances such that the embodiments of the application are capable of operation in sequences other than those illustrated or otherwise described herein, and that the "first" and "second" distinguishing between objects generally are not limited in number to the extent that the first object may, for example, be one or more. Furthermore, in the description and claims, "and/or" means at least one of the connected objects, and the character "/" generally means a relationship in which the associated object is an "or" before and after.

It should be noted that the techniques described in the embodiments of the present application are not limited to long term evolution (Long Term Evolution, LTE)/LTE evolution (LTE-Advanced, LTE-a) systems, but may also be used in other wireless communication systems, such as code division multiple access (Code Division Multiple Access, CDMA), time division multiple access (Time Division Multiple Access, TDMA), frequency division multiple access (Frequency Division Multiple Access, FDMA), orthogonal frequency division multiple access (Orthogonal Frequency Division Multiple Access, OFDMA), single carrier frequency division multiple access (Single-carrier Frequency Division Multiple Access, SC-FDMA), and other systems. The terms "system" and "network" in embodiments of the application are often used interchangeably, and the techniques described may be used for both the above-mentioned systems and radio technologies, as well as other systems and radio technologies. The following description describes a 6th generation (6th Generation,6G) communication system for purposes of example, and the terminology in 6G is used in much of the description below, but the techniques are applicable to applications other than 6G system applications.

Fig. 1a shows a block diagram of a wireless communication system to which embodiments of the application are applicable. The wireless communication system includes a BSC terminal 11 and a network device 12. The BSC terminal 11 may also be referred to as a BSC terminal Device or a BSC User terminal (UE), and the BSC terminal 11 may be a backscatter Device, including but not limited to a Wearable Device (Wearable Device), where the Wearable Device includes: the intelligent wrist strap, intelligent earphone, intelligent glasses, intelligent jewelry (intelligent bracelet, intelligent ring, intelligent necklace, intelligent anklet, intelligent foot chain, etc.), intelligent wrist strap, intelligent clothing, etc., the BSC terminal modulates the information to be transmitted onto a signal source carrier wave through a modulating module of the BSC, and back-scatters the modulated data to network side equipment. It should be noted that the specific type of the BSC terminal 11 is not limited in the embodiment of the present application. The network side device 12 may include an access network device and/or a core network device, where the network side device 12 may be a BSC Receiver, which is a radio frequency source, and is also a downstream data transmitting end of the BSC terminal 11 and an upstream data receiving end of the BSC terminal 11, where the access network device 12 may also be referred to as a radio access network device, a radio access network (Radio Access Network, RAN), a radio access network function, or a radio access network unit. Access network device 12 may include a base station, a WLAN access point, a WiFi node, or the like, which may be referred to as a node B, an evolved node B (eNB), an access point, a base transceiver station (Base Transceiver Station, BTS), a radio base station, a radio transceiver, a basic service set (Basic Service Set, BSS), an extended service set (Extended Service Set, ESS), a home node B, a home evolved node B, a transmission and reception point (Transmitting Receiving Point, TRP), or some other suitable terminology in the art, and the base station is not limited to a particular technical vocabulary so long as the same technical effect is achieved, and it should be noted that in the embodiment of the present application, only a base station in the NR system is described as an example, and the specific type of the base station is not limited.

The following describes in detail the incoming wave direction estimation scheme provided by the embodiment of the application through some embodiments and application scenarios thereof with reference to the accompanying drawings.

In a specific application, the network side device may send one measurement signal to the BSC terminal, or may send multiple measurement signals to the BSC terminal, and in this embodiment of the present application, as shown in fig. 1b, the BSC terminal may use different schemes to obtain an incoming wave direction for a scenario in which the network side device sends one measurement signal or a scenario in which the network side device sends multiple measurement signals, so as to reflect the signal in a reverse direction. For example, in a scenario where a network side device sends one measurement signal, the following technical scheme described in method 200 is adopted to estimate the incoming wave direction, and in a scenario where a network side device sends multiple measurement signals, the following technical scheme described in method 800 is adopted to obtain the incoming wave direction. In a specific application, the BSC terminal may determine, according to the indication information sent by the network side device, whether a scenario of sending a measurement signal by the network side device or a scenario of sending a plurality of measurement signals by the network side device currently, or, according to the number of beam directions of the measurement signals sent by the network side device detected in a certain time, whether the scenario of sending a measurement signal by the network side device currently or the scenario of sending a plurality of measurement signals by the network side device currently is determined by the BSC terminal. For example, if the BSC terminal detects only one measurement signal in one beam direction within 30ms, it determines that one measurement signal is transmitted for the network side device, and if the BSC terminal detects multiple measurement signals in multiple beam directions within 30ms, it determines that multiple measurement signals are transmitted for the network side device. The following describes schemes for acquiring the incoming wave direction by the BSC terminal in the two scenarios respectively.

Fig. 2 shows a flowchart of a method for estimating an incoming wave direction according to an embodiment of the present application, and the method 200 may be performed by a BSC terminal. In other words, the method may be performed by software or hardware installed on the BSC terminal. As shown in fig. 2, the method may include the following steps.

And S210, the BSC terminal measures one measurement signal sent by the network side equipment in a plurality of measurement ranges.

In this embodiment, the network side device sends a measurement signal to the BSC terminal, that is, the network side device, which may be a base station, sends a single measurement signal as a BSC Receiver to the BSC UE. The expansion angle of the transmitting beam corresponding to the single measurement signal is controlled by network side equipment and can be wide beam or narrow beam. The network side equipment configures a shaped signal set for the beam for measurement of the beam, wherein the measurement signal can be a sequence, a Preamble (Preamble), a reference signal, a synchronous signal block (Synchronization Signal Block, SSB) and the like. The network side device can adopt a periodic or non-periodic transmission mode when transmitting the wave beam. For example, the network side device may transmit the beam in a non-periodic manner under the condition that the general direction of the BSC UE is known, and transmit the beam in only a limited number of directions, so as to reduce the system overhead and the measurement complexity of the BSC UE. When the system load is high, the beam is transmitted by a periodic transmission scheme.

When an incoming wave direction (AoA) estimation is performed based on a method of measuring parameter configuration and difference beam, the AoA can be effectively estimated by performing measurement only within one measurement range (for example, within θ), but when the estimated range (- θ/2, θ/2) is exceeded, the value of the measurement parameter becomes small, which is disadvantageous for the configuration of the difference beam. Therefore, in the embodiment of the present application, the BSC terminal measures one measurement signal transmitted by the network side device in a plurality of measurement ranges.

In one possible implementation, in S210, for each measurement range, the BSC terminal may measure the measurement signal using a load impedance connection mode corresponding to the measurement range, where the load impedance connection modes corresponding to different measurement ranges are not identical. I.e. in this possible implementation, the BSC terminals implement measuring the measurement signals in different measurement ranges by means of load impedance connections.

In one possible implementation, in S210, the BSC terminal may measure the measurement signals of different measurement ranges at different times. For example, when the number of antennas of the BSC terminal is small and is only a single panel, the BSC terminal may measure the measurement signals of different measurement ranges in a time division manner.

In another possible implementation, in S210, the BSC terminal may also measure the measurement signals of different measurement ranges through different panels of the BSC terminal at the same time. For example, θ is measured by the panel 1 ₁ Is used for measuring theta through the panel 2 ₂ Is provided.

In a specific application, different implementation types may be divided according to the number of panels of the BSC terminal and the required measurement range. As shown in table 1, type I is used for measuring θ at time T for a single panel and measuring only one range ₁ Sum and difference beams of the range; type II measures beams of multiple ranges for single-panel conditions, and the implementation mode is T ₁ Time of day θ ₁ Sum and difference beams of ranges, T ₂ Time of day θ ₂ Sum and difference beams of range, and so on; type III measures beams of a plurality of ranges for a plurality of panels, and the implementation mode is that T moment panel 1 measures theta ₁ Sum and difference beams of the ranges, panel 2 simultaneously measuring θ ₂ Sum and difference beams of range, and so on.

TABLE 1 sum and difference beam measurement type partitioning

And S212, the BSC terminal acquires N groups of sum and difference beams according to measurement results obtained by the measurement ranges, wherein one measurement range corresponds to one group of sum and difference beams, one group of sum and difference beams comprises one sum beam and one difference beam, N is the number of the measurement ranges, and N is an integer greater than 1.

Although the above definition N is an integer greater than 1, it is not limited thereto, and N may be equal to 1 in practical applications, for example, N is equal to 1 when the BSC terminal performs measurement using the Type I implementation.

In the embodiment of the application, the BSC terminal measures the measurement signals in N measurement ranges, each measurement range obtains a group of measurement parameters, and a group of sum and difference beams can be obtained through the group of measurement parameters.

For example, taking the measurement parameter as the reference signal received power (Reference Signal Received Power, RSRP) as an example, if the BSC terminal selects the implementation of Type I, 3 RSRPs are required to be measured. As shown in fig. 3a to 3c, the measured measurement parameter may be RSRP measured by in-phase addition of two antennas after they are terminated with the same type of load ₁ I.e. sum beam, RSRP measured after terminating different types of loads for two other antennas ₂₁ And RSRP ₂₂ Wherein, the difference beam RSRP ₂ ＝RSRP ₂₁ -RSRP ₂₂ . Measuring RSRP ₂₁ And RSRP ₂₂ In this case, the T can be measured at different times by two identical antennas, i.e. in two antennas ₁ One antenna is connected with resistor at moment, the other antenna is connected with inductor, RSSI is measured ₂₁ ；T ₂ The opposite time is the time, the RSSI is measured ₂₂ The method comprises the steps of carrying out a first treatment on the surface of the The RSSI can also be measured by measuring 4 antennas simultaneously at the same time, e.g., at time T, the first antenna terminates the resistor, the second antenna terminates the inductor ₂₁ The third antenna is connected with the inductor, the fourth antenna is connected with the resistor, and the RSSI is measured ₂₂ 。

If the BSC terminal selects the Type II implementation, the BSC terminal only configures a single panel, so that signals in two θ ranges need to be measured at different times. At T ₁ At time, BSC terminal at θ ₁ Measuring signals of 2 wave beams in a range to obtain a measuring parameter RSRP ₁₁ And RSRP ₂₁ The method comprises the steps of carrying out a first treatment on the surface of the Then at T ₂ Switching load impedance at time, adjusting the range of the receiving beam to theta ₂ The BSC terminal measures the signals of 2 wave beams in the range to obtain another 2 measuring parameters RSRP ₁₂ And RSRP ₂₂ 。

If the BSC terminal selects the implementation manner of Type III, since the BSC terminal is configured with a multi-panel, signals in two θ ranges can be measured at the same time. Multiple groups of sum and difference beams can be simultaneously constructed through different panels, and the sum and difference beams of different groups correspond to different measurementsRange. For example, at time T, the BSC terminal receives θ of the beam through panel 1 ₁ Measuring signals of 2 wave beams in a range to obtain a measuring parameter RSRP ₁₁ And RSRP ₂₁ And receives the theta beam through the panel 2 ₂ Signals of 2 beams are measured in the surrounding area to obtain another 2 measuring parameters RSRP ₁₂ And RSRP ₂₂ . Wherein, the measured parameter corresponding to the beam is different from the load impedance connected with the measured parameter corresponding to the difference beam; the load impedance connection mode corresponding to each group of sum and difference beams is also different.

And S214, the BSC terminal estimates the incoming wave direction of the measurement signal according to a target and difference beam group, wherein the target and difference beam group is a group of the N groups of the difference beams with the best signal energy and/or the best signal quality.

In the embodiment of the application, the BSC terminal determines the final and difference beams according to the criteria of the best signal energy and/or quality of different measuring ranges, and carries out the AoA estimation of BSC UE.

In the embodiment of the application, an incoming wave direction estimation method based on measurement parameters can be adopted. For example, taking the measurement parameter received signal strength indication (Received Signal Strength Indication, RSSI) as an example, consider two beams, one of which is the sum beam, i.e., the two antennas are terminated by resistors and then added in phase to measure the Received Signal Strength (RSSI) ₁ ) The method comprises the steps of carrying out a first treatment on the surface of the Another is the difference beam (RSSI) ₂₁ -RSSI ₂₂ ) I.e. in two antennas, T ₁ One end of the resistor is connected with the other end of the inductor at the moment, and RSSI is measured ₂₁ ；T ₂ The opposite time is the time, the RSSI is measured ₂₂ . The specific principle of the incoming wave direction estimation is described as follows.

Let the 1 st antenna receive the signal s ₁ The signal received by the 2 nd antenna is s ₂ ：

s ₁ ＝Asin(wt) (1)

s ₂ ＝Asin(wt+φ) (2)

Where A represents the signal amplitude and Φ represents the phase shift. The sum and difference beams can be expressed as:

Wherein RSSI1 is measurable and envelope term in the beamRSSI ₂₁ -RSSI ₂₂ Envelope term +.>Compared to the difference beam, it is possible to:

therefore, the AoA of the BSC terminal incoming wave can be obtained by the above equation.

In one possible implementation of an embodiment of the present application, as shown in fig. 4, after S214, the method may further include the following steps.

S216, the BSC UE modulates the information bits to be transmitted.

The information bit modulation achieved by the BSC terminal may be achieved by connection of the antennas to the load impedance, e.g. in fig. 5, it is assumed that the BSC terminal has 2 antennas and 6 load impedances (Γ ₁ ～Γ ₆ ) The state (open/close) of the switch to which each antenna is connected can be controlled by the controller.

The BSC UE antenna may implement a modulation function of a signal reflected to the network side device by selecting different impedance connection modes, where the specific connection modes include, but are not limited to:

1) Randomly determining that each antenna is connected with a certain impedance, wherein a '0' represents the unconnected total absorption state, and a '1' is sent from 6 gamma ₁ ～Γ ₆ 1 was selected. The connection isThe method has high randomness, and the base station is likely to receive a pilot signal with weak power to influence subsequent communication, but the method can save power consumption and reduce time delay;

2) By traversing the way: if 1 antenna is considered to be connected with 1 load impedance, then a "0" is sent to represent the unconnected full absorption state, and a "1" is sent to traverse Γ ₁ ～Γ ₆ The load impedance connection with the maximum receiving power is adopted; if 2 antennas are considered to be connected to 2 different load impedances, Γ is selected at the first time ₁ And Γ ₂ Is connected with two antennas, and is selected gamma at the second moment ₃ And Γ ₄ Connected to two antennas, and so on.

Two different modulation schemes for the reflected signal are given below:

(1) If the pilot sequence is considered to be transmitted by on-off keying (OOK) or binary phase shift keying (Binary Phase Shift Keying, BPSK), only one antenna and 2 load impedances are required to complete the transmission. When considering OOK, the phases of 2 load impedances are required to be equal to the phase of the antenna impedance, and when "0" is given, the phase is in a connected full absorption state, and when "1" is given, the phase is in an unconnected state; considering BPSK, the phase difference of 2 load impedances is required to be 90 °, and the phase is 360 ° in the connected state when "0" is given, and the phase is 0 ° in the disconnected state when "1" is given.

(2) If 4 amplitude shift keying modulation (4 ASK) is considered to transmit pilot sequences, 2 antennas and 4 load impedances are needed to complete transmission, and phases of the 2 load impedances are equal to those of the antennas, the connection states of the two antennas and the load impedances are connected/disconnected, and BSC UE can send '00' (all are disconnected), '10' or '01' (one of the antennas is connected) and '11' (all are connected);

The modulation process may be implemented by combining the transmission line with the load impedance, and the embodiment of the present application is not limited thereto.

And S218, the BSC UE reflects the information ratio to be transmitted according to the estimated incoming wave direction (AoA).

The BSC terminals may be configured to modulate the signal via transmission lines and/or load impedances, and may be configured to reflect the signal 180 ° via switching of the transmission lines and/or load impedances. Taking the example of switching the load impedance, the reflection of the signal is obtained by connecting the load impedance without grouping/grouping, the case without grouping is shown in fig. 6, and the case with grouping is shown in fig. 7. Next, the generation principle of the precoding matrix is introduced in the grouping case: to generate 2 beams of different directions at two different times (beam 1 and beam 2, t=2), 6 load impedances are divided into 2 groups of 3 impedances each, i.e. a codebook of dimensions 3×2 can be generated. As can be seen from fig. 7, Γ1 to Γ3 are the 1 st group, Γ4 to Γ6 are the 2 nd group, and two antennas can only select two load impedances of the corresponding group impedances to be connected to at the same time. That is, during the uplink transmission of the backhaul, the beams sequentially transmit beams in different directions.

From the estimated AoA, the antenna at t can be determined according to the reflection array principle of the reflection array ₁ The load impedance of the connection is required at the moment. For example, the reflected signal y can be determined using the following equation (6) _n ：

y _n ＝y ₀ e ^-jπnsinθ (6)

Wherein θ is the direction of incoming wave, y ₀ For the bit information to be transmitted, j is an imaginary number and n is an antenna index.

Assuming that Γ1 and Γ5 are chosen to be such that the reflected signal is transmitted in the AoA direction, the antenna is at t ₁ After Γ1 and Γ5 are selected at the moment, phase information corresponding to Γ1 and Γ5 is selected. After selection of Γ1 and Γ5, the phase of the excitation current changes, and based on the array response vector of the linear array, the 1 st beam may be obtained, as shown by beam 1 in fig. 6. Similarly, a schematic diagram of beam 2 can be generated assuming selection of Γ2 and Γ6 is given in fig. 6.

And then, the network side equipment receives the reflected signal of the BSC UE. In this process, the reflected beam (transmit beam) of the BSC UE may be fixed, and the network side device may change the receive beam, or may use the transmit beam in the downlink transmission stage as the receive beam in the stage. The beam used to receive the reflected signal is determined by the network side device.

According to the technical scheme provided by the embodiment of the application, aiming at a single signal scene sent by network side equipment, the BSC terminal expands the measurement range of incoming wave signals by optimizing the multi-antenna transmission flow and improves the accuracy of incoming wave direction estimation based on the measurement parameter measurement principle and the difference beam.

In the above embodiment, an incoming wave direction estimation method is provided, through which a BSC terminal can estimate an incoming wave direction in a scenario where a network side device sends a measurement signal, and in addition, the embodiment of the present application further provides a technical solution for the BSC terminal to obtain an incoming wave direction in a scenario where the network side device sends a plurality of measurement signals, where the following describes the incoming wave direction obtaining method provided by the embodiment of the present application.

Fig. 8 shows a flowchart of a method for obtaining an incoming wave direction according to an embodiment of the present application, and the method 800 may be performed by a BSC terminal. In other words, the method may be performed by software or hardware installed on the BSC terminal. As shown in fig. 8, the method may include the following steps.

And S810, the BSC terminal measures a plurality of measurement signals sent by the network equipment.

In the embodiment of the present application, the network side device sends M measurement signals, corresponding to M analog beams, and a shaped signal set may be configured for each beam direction for measurement of the beam, where the measurement signals may be sequences, preambles, reference signals, SSBs, and the like.

Wherein, the M measurement signals are transmitted on different time domain and/or frequency domain resources, so that the network side equipment can adjust the configuration of the phase shifter for each direction to realize analog beam forming; meanwhile, BSC UE can measure M shaped signals through N receiving beams respectively to obtain measurement parameters corresponding to each signal. The number of N reception beams of the BSC UE depends on the hardware capability, and when N is 1, the BSC UE is represented by measuring incoming wave signals through one omni-directional beam. As shown in fig. 9, the network side device has 3 analog beams, and the BSC UE has 1 beam, and the 3 analog beams of the network side device are each configured with a shaping signal, and are sent by polling.

The network side device can adopt a periodic or non-periodic transmission mode when transmitting the wave beam. For example, in the case that the network side device knows the general direction of the BSC UE, the network side device may send the beam in an aperiodic manner, and send the beam only in a limited number of directions, so as to reduce the overhead and the measurement complexity of the BSC UE. Under the condition of higher system load, the network side equipment transmits the wave beam in a larger angle range in a periodical transmission mode, so that more BSC (base station controller) UE can receive signals, and the wave beam measurement efficiency is improved.

And S812, the BSC terminal acquires the measurement parameters of a first signal according to the measurement result, wherein the first signal is the measurement signal with the best signal energy and/or the best signal quality in the plurality of measurement signals.

And S814, the BSC terminal acquires a target incoming wave direction corresponding to the measurement parameter of the first signal.

In the embodiment of the application, the network side equipment can configure the mapping relation between the measurement parameters of the BSC terminal and the incoming wave direction (AoA), and the BSC terminal can obtain the AoA of the incoming wave only by measuring the incoming wave signal.

In the embodiment of the application, the transmitting beam of the network side equipment can be changed in the measuring process, and the BSC UE can keep the receiving beam unchanged in a certain time. The expansion angle of the transmit beam is controlled by the network side equipment and transparent to the BSC UE. The BSC UE measures M signals through the receiving beam to obtain a first reference signal, wherein the signal energy and/or the signal quality corresponding to the reference signal are the best of the M reference signals.

In the embodiment of the present application, in one possible scenario, the BSC terminal may have configured a mapping relationship between the measurement parameters and the incoming wave direction, and the BSC terminal may obtain the target incoming wave direction through the mapping relationship, so in one possible implementation, S814 may include: and the BSC terminal acquires a target incoming wave direction corresponding to the measurement parameters of the first signal according to the configured mapping relation between the measurement parameters and the incoming wave direction. For example, the network side device may jointly configure or indicate the mapping relationship through any one or more manners such as radio resource Control (Radio Resource Control, RRC)/medium access Control layer (Medium Access Control, MAC) Control Element (CE)/downlink Control information (Downlink Control Information, DCI).

In the foregoing possible implementation manner, the mapping relationship may be configured by a network side device, and therefore, the method may further include: and the BSC terminal receives the mapping relation configured or indicated by the network side equipment. Of course, the mapping relationship is not limited thereto, and may be default agreed for the network side device and the BSC terminal.

In another possible case, the BSC terminal may not configure a mapping relationship between the measurement parameters and the incoming wave directions, and the BSC terminal may report the measurement result to the network side device, and the network side device queries the mapping relationship and indicates the target incoming wave directions corresponding to the measurement parameters of the first signal to the BSC terminal. Thus, in another possible implementation manner, the BSC terminal obtaining the target incoming wave direction corresponding to the measurement parameter of the first signal may include: and the BSC terminal reports the measurement parameters of the first signal and acquires the target incoming wave direction indicated by the network side equipment and corresponding to the measurement parameters of the first signal. That is, in this possible implementation manner, the BSC terminal may report the measurement parameter of the first signal to the network side device, after receiving the measurement parameter of the first signal, the network side device obtains, according to the configured mapping relationship, the target incoming wave direction corresponding to the measurement parameter of the first signal, and then sends, to the BSC terminal, indication information of the target incoming wave direction, where the BSC terminal may obtain the target incoming wave direction according to the indication information.

Table 2 shows a schematic mapping of one measurement parameter to AoA in an embodiment of the present application. As shown in table 2, the accuracy of the AoA estimation of the BSC UE depends on the number of RSRP in the mapping table, which is related to M signals transmitted by the network side device. In addition, the signal processing capability of the BSC UE also determines the accuracy of the estimation of AoA. For example, when the load impedance/transmission line number of the BSC UE is small, the capability of achieving phase modulation/amplitude modulation is limited, and only one wide beam may be reflected in the area of the AoA, and the gain peak point of the wide beam may deviate from the AoA angle. Thus, in one possible implementation, the method may further comprise: and the BSC terminal reports the capability information of the BSC terminal, wherein the capability information is used for configuring the mapping relation by the network side equipment. The BSC UE reports the capability to the network, and the network comprehensively considers factors such as the capability of the BSC UE and the like when configuring a mapping table to determine M transmitting beams of the network side equipment.

TABLE 2 mapping schematic of measurement parameters to AoA

In one possible implementation manner, the mapping relationship between the measurement parameters and the AoA is a one-to-one mapping relationship, where the measurement parameters corresponding to one incoming wave direction include: the range of values of the parameters is measured. That is, the measurement parameter may be a range, and thus, in practical applications, a situation in which a plurality of measurement parameters corresponds to one AoA may occur.

In the embodiment of the application, the BSC UE measures a plurality of measurement signals sent by the network side equipment by informing the BSC UE through high-layer signaling or by dynamic parameter indication of control signaling. For example, in one possible implementation, the BSC terminal measures a plurality of measurement signals sent by the network side device, and may include: and under the condition that the network side equipment indicates that the directions of the sending beams of the plurality of measuring signals are the same, the BSC terminal adopts different receiving beams to measure the plurality of measuring signals. That is, in this possible implementation, the network-side device may indicate to the BSC UE that the transmit beams of its M measurement signals have the same direction, and that the BSC UE will measure the signals through different receive beams.

In another possible implementation manner, the BSC terminal measures a plurality of measurement signals sent by the network side device, and may include: and under the condition that the network side equipment indicates that the directions of the sending beams of the plurality of measuring signals are not identical, the BSC terminal adopts the same receiving beam to measure the plurality of measuring signals. That is, in this possible implementation, the network-side device may indicate to the BSC UE that the transmit beams of its M measurement signals have different directions, and the BSC UE may fix its receive beam, determine the strongest signal energy and/or the best signal quality.

In one possible implementation, after S814, the method may further include the following S816 and S818.

S816, the BSC UE modulates the information bits to be transmitted.

In the embodiment of the present application, the BSC UE may implement information bit modulation through connection between the antenna and the load impedance, and the specific implementation process is consistent with the information bit modulation method described in S216 in the method 200, and may be specifically described in S216 in the parameter method 200, which is not described herein.

And S818, the BSC terminal reflects the information bits to be transmitted according to the acquired target incoming wave direction.

In the embodiment of the application, BSC UE reflects the signal back to the network side equipment in the direction of the AoA according to the obtained AoA. The BSC UE reflects the signal by 180 degrees in the AoA direction through a connection scheme for adjusting load impedance and/or a transmission line connection scheme; the BSC UE may report the energy and/or quality of the measured M measurement signals to the network side device, or may just select an optimal beam for reporting. The AoA corresponding to the optimal beam may be stored in the BSC UE, and need not be reported to the network side device. The implementation process of the BSC UE reflecting the information bits to be sent is consistent with the signal reflection method described in S218 in the method 200, and specifically, reference may be made to the description of S218 above, which is not repeated herein.

After S818, the network-side device may receive the reflected signal of the BSC UE.

According to the technical scheme provided by the embodiment of the application, a mapping table of the BSC UE measurement parameters and the AoA can be configured for the network side equipment to send the multi-signal scene, and the BSC UE can obtain the incoming wave AoA only by measuring the incoming wave signals, so that the system power consumption caused by beam alignment is reduced.

Fig. 10 is a flowchart of a method for transmitting a measurement signal according to an embodiment of the present application, where the method 1000 is an execution step of a network side device corresponding to the method 800, and the method 1000 is executed by the network side device. In other words, the method may be performed by software or hardware installed on the network-side device. As shown in fig. 10, the method may include the following steps.

S1010, the network side equipment configures a mapping relation between the measurement parameters and the incoming wave direction according to target parameters, wherein the target parameters comprise at least one of the following: the number of BSC terminals communicating with the network side equipment, and the communication distance between the network side equipment and the BSC terminals.

And S1012, the network side equipment sends a plurality of measurement signals according to the mapping relation.

In the embodiment of the application, the accuracy of acquiring the AoA estimation by the BSC UE can be determined according to the design rule of the mapping relation, and the network side equipment can configure the mapping table according to the quantity of the BSC UE and/or the communication distance of instant messaging.

In addition, the accuracy of the AoA estimation is also dependent on the capability of the BSC UE, i.e. the BSC UE hardware parameters determine whether or not signal reflection at a specific AoA angle can be achieved, and therefore, in one possible implementation, the target parameters further include: capability of the BSC terminal.

The network side device may send M (M is an integer greater than 1) measurement signals based on the mapping relationship, corresponding to M analog beams, and may configure a shaped signal set for each beam direction for measurement of the beam, where the signals may be sequences, preambles, reference signals, SSBs, and so on.

Wherein the M measurement signals may be transmitted on different time and/or frequency domain resources so that the network side device can adjust the configuration of the phase shifter for each direction to implement analog beamforming.

In the embodiment of the application, the network side equipment can adopt a periodic or non-periodic transmission mode when transmitting the wave beam. If the network side equipment knows the general direction of the BSC UE, the beam can be sent in an aperiodic mode and only in a limited direction, so that the system overhead and the measurement complexity of the BSC UE are reduced. Under the condition of higher system load, the network side equipment transmits the wave beam in a larger angle range in a periodical transmission mode, so that more BSC (base station controller) UE can receive signals, and the wave beam measurement efficiency is improved.

In a possible implementation manner of the embodiment of the present application, before the network side device sends the plurality of measurement signals, the method further includes: the network side equipment configures or indicates the mapping relation to the BSC terminal. Therefore, the BSC UE can obtain the incoming wave direction only by measuring the incoming wave signal.

In another possible implementation manner, the network side device may not configure or indicate the mapping relationship to the BSC terminal, and the BSC terminal may report the measurement parameters of the first signal after measuring the M measurement signals. Thus, in this possible implementation, after the network-side device sends the plurality of measurement signals, the method further includes: the network side equipment receives measurement parameters of a first signal reported by a BSC terminal, wherein the first signal is a measurement signal with the best signal energy and/or the best signal quality, which is obtained by the BSC terminal through measuring the plurality of measurement signals; the network side equipment acquires a target incoming wave direction corresponding to the measurement parameter of the first signal according to the mapping relation; and the network side equipment indicates the target incoming wave direction to the BSC terminal. With this possible implementation, the hardware requirements for the BSC terminal may be reduced.

In order to enable the BSC terminal to determine the manner in which to measure the plurality of measurement signals, in one possible implementation, the method may further comprise:

the network side equipment indicates the same direction of the sending beams of the plurality of measurement signals to the BSC terminal, and after receiving the indication, BSC UE can measure the plurality of measurement signals through different receiving beams; or alternatively, the process may be performed,

the network side equipment indicates to the BSC terminal that the directions of the sending beams of the plurality of measurement signals are not identical, and after receiving the indication, the BSC UE can fix the receiving beams thereof to measure the plurality of measurement signals.

Through the technical scheme provided by the embodiment of the application, the network side equipment can obtain the incoming wave direction by measuring the mapping table of the signal measurement parameters and the AoA, and BSC UE only needs to measure the incoming wave signals, so that the system power consumption caused by beam alignment is reduced.

According to the incoming wave direction estimation method provided by the embodiment of the application, the execution main body can be an incoming wave direction estimation device. In the embodiment of the present application, an incoming wave direction estimation device executes an incoming wave direction estimation method as an example, and the incoming wave direction estimation device provided by the embodiment of the present application is described.

Fig. 11 is a schematic structural diagram of an incoming wave direction estimation device according to an embodiment of the present application, and as shown in fig. 11, the device 1100 mainly includes: a first measurement module 1101, a first acquisition module 1102, and an estimation module 1103.

In the embodiment of the present application, a first measurement module 1101 is configured to measure one measurement signal sent by a network side device in a plurality of measurement ranges; the first obtaining module 1102 is configured to obtain N sets of sum and difference beams according to measurement results obtained by the measurement ranges, where one measurement range corresponds to one set of sum and difference beams, one set of sum and difference beams includes one sum beam and one difference beam, N is the number of measurement ranges, and N is an integer greater than 1; the estimating module 1103 is configured to estimate an incoming wave direction of the measurement signal according to a target and difference beam set, where the target and difference beam set is a set of sum and difference beams with the best signal energy and/or the best signal quality in the N sets of sum and difference beams.

In one possible implementation manner, the first measurement module 1101 measures, in a plurality of measurement ranges, a measurement signal sent by a network side device, including:

and for each measuring range, the BSC terminal measures the measuring signals by adopting a load impedance connection mode corresponding to the measuring range, wherein the load impedance connection modes corresponding to different measuring ranges are not identical.

Measuring the measurement signals of different measurement ranges at different times; or alternatively, the process may be performed,

the measurement signals of different measurement ranges are measured at the same time by different panels of the BSC terminal.

The incoming wave direction estimating device in the embodiment of the application can be an electronic device, such as an electronic device with an operating system, or can be a component in the electronic device, such as an integrated circuit or a chip. The electronic device may be a BSC terminal or may be other devices than a terminal. By way of example, the BSC terminals may include, but are not limited to, the types of BSC terminals 11 listed above.

The incoming wave direction estimation device provided by the embodiment of the application can realize each process realized by the BSC terminal in the method embodiments of figures 2 to 7 and achieve the same technical effect, and in order to avoid repetition, the description is omitted.

Fig. 12 is a schematic structural diagram of an incoming wave direction acquisition device according to an embodiment of the present application, and as shown in fig. 12, the device 1200 mainly includes: a second measurement module 1201, a second acquisition module 1202 and a third acquisition module 1203.

In the embodiment of the present application, the second measurement module 1201 is configured to measure a plurality of measurement signals sent by the network side device; a second obtaining module 1202, configured to obtain a measurement parameter of a first signal according to a measurement result, where the first signal is a measurement signal with the best signal energy and/or the best signal quality in the plurality of measurement signals; a third obtaining module 1203 is configured to obtain a target incoming wave direction corresponding to the measurement parameter of the first signal.

In one possible implementation manner, the third obtaining module 1203 obtains a target incoming wave direction corresponding to the measured parameter of the first signal, including:

acquiring a target incoming wave direction corresponding to the measurement parameter of the first signal according to the configured mapping relation between the measurement parameter and the incoming wave direction; or alternatively, the process may be performed,

reporting the measurement parameters of the first signal, and acquiring a target incoming wave direction indicated by the network side equipment and corresponding to the measurement parameters of the first signal.

In one possible implementation, the apparatus further includes: the first receiving module is configured to receive the mapping relationship configured or indicated by the network side device.

In one possible implementation, the apparatus further includes: and the reporting module is used for reporting the capability information of the BSC terminal, wherein the capability information is used for configuring the mapping relation by the network side equipment.

In one possible implementation manner, the second measurement module 1201 measures a plurality of measurement signals sent by a network side device, including: measuring the plurality of measurement signals through different reception beams under the condition that the network side equipment indicates that the directions of the transmission beams of the plurality of measurement signals are the same; or when the network side equipment indicates that the directions of the transmission beams of the plurality of measurement signals are not identical, the plurality of measurement signals are measured by adopting the same reception beam.

The incoming wave direction acquisition device in the embodiment of the application can be an electronic device, such as an electronic device with an operating system, or can be a component in the electronic device, such as an integrated circuit or a chip. The electronic device may be a BSC terminal or may be other devices than a terminal. By way of example, the BSC terminals may include, but are not limited to, the types of BSC terminals 11 listed above.

The incoming wave direction obtaining device provided by the embodiment of the application can realize each process realized by the BSC terminal in the method embodiment of figures 8 to 10 and achieve the same technical effect, and in order to avoid repetition, the description is omitted.

Fig. 13 is a schematic structural diagram of a measurement signal transmitting apparatus according to an embodiment of the present application, and as shown in fig. 13, the apparatus 1300 mainly includes: a configuration module 1301 and a transmission module 1302.

In the embodiment of the present application, the configuration module 1301 is configured to configure a mapping relationship between a measurement parameter and an incoming wave direction according to a target parameter, where the target parameter includes at least one of the following: the number of BSC terminals communicating with the network side equipment and the communication distance between the network side equipment and the BSC terminals; a transmitting module 1302, configured to transmit a plurality of measurement signals according to the mapping relationship.

In one possible implementation, the sending module 1302 is further configured to configure or indicate the mapping relationship to a BSC terminal.

In one possible implementation, the apparatus further includes: the second receiving module is used for receiving the measurement parameters of the first signals reported by the BSC terminal, wherein the first signals are measurement signals with the best signal energy and/or the best signal quality, which are obtained by measuring the plurality of measurement signals by the BSC terminal; a fourth obtaining module, configured to obtain, according to the mapping relationship, a target incoming wave direction corresponding to the measurement parameter of the first signal; the sending module 1302 is further configured to indicate the target incoming wave direction to the BSC terminal.

In one possible implementation, the sending module 1302 is further configured to:

indicating to the BSC terminal that the directions of the transmission beams of the plurality of measurement signals are the same; or alternatively, the process may be performed,

indicating to the BSC terminal that the directions of the transmission beams of the plurality of measurement signals are not identical.

The transmitting device of the measurement signal in the embodiment of the application may be an electronic device, for example, an electronic device with an operating system, or may be a component in the electronic device, for example, an integrated circuit or a chip. The electronic device may be a network-side device, which may be various implementations of the network-side device 12 described above, and embodiments of the present application are not limited in detail.

The sending device of the measurement signal provided by the embodiment of the application can realize each process realized by the network side equipment in the method embodiment of fig. 8 to 10 and achieve the same technical effect, and in order to avoid repetition, the description is omitted here.

Optionally, as shown in fig. 14, the embodiment of the present application further provides a communication device 1400, including a processor 1401 and a memory 1402, where the memory 1402 stores a program or instructions that can be executed on the processor 1401, for example, when the communication device 1400 is a terminal, the program or instructions implement each step of the above-mentioned incoming wave direction estimation method embodiment, or implement each step of the above-mentioned incoming wave direction obtaining method embodiment when executed by the processor 1401, and achieve the same technical effects. When the communication device 1400 is a network side device, the program or the instruction, when executed by the processor 1401, implements the steps of the foregoing embodiment of the method for sending a measurement signal, and the same technical effects can be achieved, so that repetition is avoided, and further description is omitted here.

The embodiment of the application also provides a BSC terminal, which comprises a processor and a communication interface, wherein the processor is used for realizing the steps of the incoming wave direction estimation method embodiment or the steps of the incoming wave direction acquisition method embodiment, and the communication interface is used for communicating with external equipment. The terminal embodiment corresponds to the BSC terminal side method embodiment, and each implementation process and implementation manner of the method embodiment can be applied to the terminal embodiment, and the same technical effects can be achieved. Specifically, fig. 15 is a schematic hardware structure of a terminal for implementing an embodiment of the present application.

The terminal 1500 includes, but is not limited to: at least some of the components of the radio frequency unit 1501, the network module 1502, the audio output unit 1503, the input unit 1504, the sensor 1505, the display unit 1506, the user input unit 1507, the interface unit 1508, the memory 1509, and the processor 1510, among others.

Those skilled in the art will appreciate that the terminal 1500 may further include a power source (e.g., a battery) for powering the various components, and the power source may be logically connected to the processor 1510 via a power management system so as to perform functions such as managing charging, discharging, and power consumption via the power management system. The terminal structure shown in fig. 15 does not constitute a limitation of the terminal, and the terminal may include more or less components than shown, or may combine some components, or may be arranged in different components, which will not be described in detail herein.

It should be appreciated that in embodiments of the present application, the input unit 1504 may include a graphics processing unit (Graphics Processing Unit, GPU) 15041 and a microphone 15042, with the graphics processor 15041 processing image data of still pictures or video obtained by an image capturing device (e.g., a camera) in a video capturing mode or an image capturing mode. The display unit 1506 may include a display panel 15061, and the display panel 15061 may be configured in the form of a liquid crystal display, an organic light emitting diode, or the like. The user input unit 1507 includes at least one of a touch panel 15071 and other input devices 15072. The touch panel 15071 is also referred to as a touch screen. The touch panel 15071 may include two parts, a touch detection device and a touch controller. Other input devices 15072 may include, but are not limited to, a physical keyboard, function keys (e.g., volume control keys, switch keys, etc.), a trackball, a mouse, a joystick, and so forth, which are not described in detail herein.

In the embodiment of the present application, after receiving downlink data from the network side device, the radio frequency unit 1501 may transmit the downlink data to the processor 1510 for processing; in addition, the radio frequency unit 1501 may send uplink data to the network side device. Typically, the radio frequency unit 1501 includes, but is not limited to, antennas, amplifiers, transceivers, couplers, low noise amplifiers, diplexers, and the like.

The memory 1509 may be used to store software programs or instructions and various data. The memory 1509 may mainly include a first memory area storing programs or instructions and a second memory area storing data, wherein the first memory area may store an operating system, application programs or instructions (such as a sound playing function, an image playing function, etc.) required for at least one function, and the like. Further, the memory 1509 may include volatile memory or nonvolatile memory, or the memory 1509 may include both volatile and nonvolatile memory. The nonvolatile Memory may be a Read-Only Memory (ROM), a Programmable ROM (PROM), an Erasable PROM (EPROM), an Electrically Erasable EPROM (EEPROM), or a flash Memory. The volatile memory may be random access memory (Random Access Memory, RAM), static RAM (SRAM), dynamic RAM (DRAM), synchronous DRAM (SDRAM), double Data Rate SDRAM (ddr SDRAM), enhanced SDRAM (Enhanced SDRAM), synchronous DRAM (SLDRAM), and Direct RAM (DRRAM). Memory 1509 in embodiments of the application include, but are not limited to, these and any other suitable types of memory.

The processor 1510 may include one or more processing units; optionally, the processor 1510 integrates an application processor that primarily processes operations involving an operating system, user interface, application programs, and the like, and a modem processor that primarily processes wireless communication signals, such as a baseband processor. It will be appreciated that the modem processor described above may not be integrated into the processor 1510.

Wherein, the processor 1510 is configured to measure a plurality of measurement signals sent by the network side device; according to the measurement result, obtaining a measurement parameter of a first signal, wherein the first signal is the measurement signal with the best signal energy and/or the best signal quality in the plurality of measurement signals; and acquiring a target incoming wave direction corresponding to the measurement parameter of the first signal.

The embodiment of the application also provides network side equipment which comprises a processor and a communication interface, wherein the processor is used for realizing the steps of the embodiment of the method for sending the measurement signals, and the communication interface is used for communicating with external equipment. The network side device embodiment corresponds to the network side device method embodiment, and each implementation process and implementation manner of the method embodiment can be applied to the network side device embodiment, and the same technical effects can be achieved.

Specifically, the embodiment of the application also provides network side equipment. As shown in fig. 16, the network side device 1600 includes: an antenna 1601, a radio frequency device 1602, a baseband device 1603, a processor 1604, and a memory 1605. The antenna 1601 is coupled to a radio frequency device 1602. In the uplink direction, the radio frequency device 1602 receives information via the antenna 1601, and transmits the received information to the baseband device 1603 for processing. In the downlink direction, the baseband device 1603 processes information to be transmitted and transmits the processed information to the radio frequency device 1602, and the radio frequency device 1602 processes the received information and transmits the processed information through the antenna 1601.

The method performed by the network-side device in the above embodiment may be implemented in the baseband apparatus 1603, and the baseband apparatus 1603 includes a baseband processor.

The baseband apparatus 1603 may, for example, comprise at least one baseband board on which a plurality of chips are disposed, as shown in fig. 16, where one chip, for example, a baseband processor, is connected to the memory 1605 through a bus interface to invoke a program in the memory 1605 to perform the network device operations shown in the above method embodiments.

The network-side device may also include a network interface 1606, such as a common public radio interface (common public radio interface, CPRI).

Specifically, the network side device 1600 of the embodiment of the present application further includes: instructions or programs stored in the memory 1605 and executable on the processor 1604, the processor 1604 invokes the instructions or programs in the memory 1605 to perform the methods performed by the modules shown in fig. 13 and achieve the same technical result, and are not described in detail herein to avoid repetition.

The embodiment of the present application further provides a readable storage medium, where a program or an instruction is stored on the readable storage medium, where the program or the instruction implements each step of the foregoing embodiment of the method for estimating an incoming wave direction, or implements each step of the foregoing embodiment of the method for obtaining an incoming wave direction, or implements each step of the foregoing embodiment of the method for sending a measurement signal, and the program or the instruction, when being executed by a processor, can achieve the same technical effect, and for avoiding repetition, will not be repeated herein.

Wherein the processor is a processor in the terminal described in the above embodiment. The readable storage medium includes computer readable storage medium such as computer readable memory ROM, random access memory RAM, magnetic or optical disk, etc.

The embodiment of the application further provides a chip, the chip includes a processor and a communication interface, the communication interface is coupled with the processor, the processor is used for running a program or instructions, implementing each process of the above-mentioned incoming wave direction estimation method embodiment, or implementing each process of the above-mentioned incoming wave direction acquisition method embodiment, or implementing each process of the above-mentioned measurement signal sending method embodiment, and can achieve the same technical effect, so that repetition is avoided, and no further description is provided herein.

It should be understood that the chips referred to in the embodiments of the present application may also be referred to as system-on-chip chips, or the like.

The embodiments of the present application further provide a computer program/program product stored in a storage medium, where the computer program/program product is executed by at least one processor to implement each process of the foregoing embodiments of the method for estimating an incoming wave direction, or implement each process of the foregoing embodiments of the method for obtaining an incoming wave direction, or implement each process of the foregoing embodiments of the method for sending a measurement signal, and achieve the same technical effects, so that repetition is avoided and no further description is given here.

The embodiment of the application also provides an incoming wave direction estimation system, which comprises: the terminal can be used for executing the steps of the incoming wave direction estimation method, and the network side equipment can be used for executing the steps of the measurement signal transmission method.

It should be noted that, in this document, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising one … …" does not exclude the presence of other like elements in a process, method, article, or apparatus that comprises the element. Furthermore, it should be noted that the scope of the methods and apparatus in the embodiments of the present application is not limited to performing the functions in the order shown or discussed, but may also include performing the functions in a substantially simultaneous manner or in an opposite order depending on the functions involved, e.g., the described methods may be performed in an order different from that described, and various steps may be added, omitted, or combined. Additionally, features described with reference to certain examples may be combined in other examples.

From the above description of the embodiments, it will be clear to those skilled in the art that the above-described embodiment method may be implemented by means of software plus a necessary general hardware platform, but of course may also be implemented by means of hardware, but in many cases the former is a preferred embodiment. Based on such understanding, the technical solution of the present application may be embodied essentially or in a part contributing to the prior art in the form of a computer software product stored in a storage medium (e.g. ROM/RAM, magnetic disk, optical disk) comprising instructions for causing a terminal (which may be a mobile phone, a computer, a server, an air conditioner, or a network device, etc.) to perform the method according to the embodiments of the present application.

The embodiments of the present application have been described above with reference to the accompanying drawings, but the present application is not limited to the above-described embodiments, which are merely illustrative and not restrictive, and many forms may be made by those having ordinary skill in the art without departing from the spirit of the present application and the scope of the claims, which are to be protected by the present application.

Claims

1. An incoming wave direction estimation method, characterized by comprising:

the reflection scattering BSC terminal measures a measurement signal sent by network side equipment in a plurality of measurement ranges;

the BSC terminal obtains N groups of sum and difference beams according to measurement results obtained by the measurement ranges, wherein one measurement range corresponds to one group of sum and difference beams, one group of sum and difference beams comprises one sum beam and one difference beam, N is the number of the measurement ranges, and N is an integer greater than 1;

and the BSC terminal estimates the incoming wave direction of the measurement signal according to a target and difference beam group, wherein the target and difference beam group is a group of sum and difference beams with the best signal energy and/or the best signal quality in the N groups of sum and difference beams.

2. The method of claim 1, wherein the BSC terminal measures a measurement signal transmitted from the network side device in a plurality of measurement ranges, comprising:

3. The method according to claim 1 or 2, wherein the BSC terminal measures one measurement signal transmitted by the network side device in a plurality of measurement ranges, comprising:

The BSC terminal measures the measurement signals of different measurement ranges at different moments; or alternatively, the process may be performed,

and the BSC terminal measures the measurement signals of different measurement ranges through different panels of the BSC terminal at the same time.

4. A method according to any one of claims 1 to 3, characterized in that after the BSC terminal estimates the incoming wave direction of the measurement signal from the target group sum and difference beams, the method further comprises:

the BSC UE modulates information bits to be sent;

and the BSC UE reflects the information bits to be transmitted according to the estimated incoming wave direction.

5. The incoming wave direction acquisition method is characterized by comprising the following steps of:

the BSC terminal measures a plurality of measurement signals sent by the network side equipment;

the BSC terminal obtains measurement parameters of a first signal according to the measurement results, wherein the first signal is the measurement signal with the best signal energy and/or the best signal quality in the plurality of measurement signals;

and the BSC terminal acquires a target incoming wave direction corresponding to the measurement parameter of the first signal.

6. The method of claim 5, wherein the BSC terminal obtains a target incoming wave direction corresponding to the measured parameter of the first signal, comprising:

The BSC terminal obtains a target incoming wave direction corresponding to the measurement parameters of the first signal according to the configured mapping relation between the measurement parameters and the incoming wave direction; or alternatively, the process may be performed,

and the BSC terminal reports the measurement parameters of the first signal and acquires the target incoming wave direction indicated by the network side equipment and corresponding to the measurement parameters of the first signal.

7. The method of claim 6, wherein before the BSC terminal acquires the target incoming wave direction corresponding to the measured parameter of the first signal, the method further comprises:

and the BSC terminal receives the mapping relation configured or indicated by the network equipment.

8. The method of claim 7, wherein before the BSC terminal receives the mapping relation configured or indicated by the network side device, the method further comprises:

and the BSC terminal reports the capability information of the BSC terminal, wherein the capability information is used for configuring the mapping relation by the network side equipment.

9. The method of claim 6, wherein the measuring parameters corresponding to one incoming wave direction in the mapping relationship include: the range of values of the parameters is measured.

10. The method according to any one of claims 5 to 9, wherein the BSC terminal measures a plurality of measurement signals transmitted by a network side device, including:

under the condition that the network side equipment indicates that the directions of the sending beams of the plurality of measuring signals are the same, the BSC terminal adopts different receiving beams to measure the plurality of measuring signals; or alternatively, the process may be performed,

and under the condition that the network side equipment indicates that the directions of the sending beams of the plurality of measuring signals are not identical, the BSC terminal adopts the same receiving beam to measure the plurality of measuring signals.

11. The method according to any one of claims 5 to 9, wherein after the BSC terminal acquires a target incoming wave direction corresponding to the measurement parameter of the first signal, the method further comprises:

the BSC UE modulates information bits to be sent;

and the BSC UE reflects the information bits to be sent according to the acquired target incoming wave direction.

12. A method of transmitting a measurement signal, comprising:

the network side equipment configures a mapping relation between a measurement parameter and an incoming wave direction according to a target parameter, wherein the target parameter comprises at least one of the following: the number of BSC terminals communicating with the network side equipment and the communication distance between the network side equipment and the BSC terminals;

And the network side equipment transmits a plurality of measurement signals according to the mapping relation.

13. The method of claim 12, wherein the target parameters further comprise: capability of the BSC terminal.

14. The method according to claim 12 or 13, characterized in that before the network side device transmits the plurality of measurement signals, the method further comprises:

the network side equipment configures or indicates the mapping relation to the BSC terminal.

15. The method according to claim 12 or 13, characterized in that after the network side device transmits the plurality of measurement signals, the method further comprises:

the network side equipment receives measurement parameters of a first signal reported by a BSC terminal, wherein the first signal is a measurement signal with the best signal energy and/or the best signal quality, which is obtained by the BSC terminal through measuring the plurality of measurement signals;

the network side equipment acquires a target incoming wave direction corresponding to the measurement parameter of the first signal according to the mapping relation;

and the network side equipment indicates the target incoming wave direction to the BSC terminal.

16. The method according to any one of claims 12 to 15, further comprising:

The network side equipment indicates to the BSC terminal that the directions of the sending beams of the plurality of measurement signals are the same; or alternatively, the process may be performed,

the network side equipment indicates to the BSC terminal that the directions of the sending beams of the plurality of measurement signals are not identical.

17. An incoming wave direction estimating device, comprising:

the first measuring module is used for measuring one measuring signal sent by the network side equipment in a plurality of measuring ranges;

the first acquisition module is used for acquiring N groups of sum and difference beams according to measurement results obtained from the measurement ranges, wherein one measurement range corresponds to one group of sum and difference beams, one group of sum and difference beams comprises one sum beam and one difference beam, N is the number of the measurement ranges, and N is an integer greater than 1;

and the estimation module is used for estimating the incoming wave direction of the measurement signal according to a target and difference beam group, wherein the target and difference beam group is a group of sum and difference beams with the best signal energy and/or the best signal quality in the N groups of sum and difference beams.

18. The apparatus of claim 17, wherein the first measurement module measures a measurement signal transmitted by the network side device over a plurality of measurement ranges, comprising:

19. The apparatus according to claim 17 or 18, wherein the first measurement module measures one measurement signal transmitted by the network side device in a plurality of measurement ranges, including:

20. An incoming wave direction acquisition apparatus, characterized by comprising:

the second measuring module is used for measuring a plurality of measuring signals sent by the network side equipment;

the second acquisition module is used for acquiring measurement parameters of a first signal according to measurement results, wherein the first signal is a measurement signal with the best signal energy and/or the best signal quality in the plurality of measurement signals;

and the third acquisition module is used for acquiring the target incoming wave direction corresponding to the measurement parameter of the first signal.

21. The apparatus of claim 20, wherein the third acquisition module acquires a target incoming wave direction corresponding to a measured parameter of the first signal, comprising:

22. The apparatus of claim 21, wherein the apparatus further comprises:

the first receiving module is configured to receive the mapping relationship configured or indicated by the network side device.

23. The apparatus of claim 22, wherein the apparatus further comprises:

and the reporting module is used for reporting the capability information of the BSC terminal, wherein the capability information is used for configuring the mapping relation by the network side equipment.

24. The apparatus according to any one of claims 20 to 23, wherein the second measurement module measures a plurality of measurement signals transmitted by a network side device, including:

measuring the plurality of measurement signals through different reception beams under the condition that the network side equipment indicates that the directions of the transmission beams of the plurality of measurement signals are the same; or alternatively, the process may be performed,

and when the network side equipment indicates that the directions of the sending beams of the plurality of measuring signals are not identical, measuring the plurality of measuring signals by adopting the same receiving beam.

25. A transmitting apparatus for a measurement signal, comprising:

the configuration module is used for configuring the mapping relation between the measurement parameters and the incoming wave direction according to target parameters, wherein the target parameters comprise at least one of the following: the number of BSC terminals communicating with the network side equipment and the communication distance between the network side equipment and the BSC terminals;

and the sending module is used for sending a plurality of measurement signals according to the mapping relation.

26. The apparatus of claim 25, wherein the sending module is further configured to configure or indicate the mapping relationship to a BSC terminal.

27. The apparatus according to claim 25 or 26, characterized in that the apparatus further comprises:

the second receiving module is used for receiving the measurement parameters of the first signals reported by the BSC terminal, wherein the first signals are measurement signals with the best signal energy and/or the best signal quality, which are obtained by measuring the plurality of measurement signals by the BSC terminal;

a fourth obtaining module, configured to obtain, according to the mapping relationship, a target incoming wave direction corresponding to the measurement parameter of the first signal;

the sending module is further configured to indicate the target incoming wave direction to the BSC terminal.

28. The apparatus of any one of claims 25 to 27, wherein the transmitting module is further configured to:

29. A terminal comprising a processor and a memory storing a program or instructions executable on the processor, which when executed by the processor, implements the steps of the incoming wave direction estimation method of any one of claims 1 to 4, or implements the steps of the incoming wave direction acquisition method of any one of claims 5 to 11.

30. A network side device comprising a processor and a memory storing a program or instructions executable on the processor, which when executed by the processor, performs the steps of transmitting a measurement signal as claimed in any one of claims 12 to 16.

31. A readable storage medium, wherein a program or instructions is stored on the readable storage medium, which when executed by a processor, implements the steps of the incoming wave direction estimation method according to any one of claims 1 to 4, or the steps of the incoming wave direction acquisition method according to any one of claims 5 to 11, or the steps of the transmission of the measurement signal according to any one of claims 12 to 16.