CN116782261A - Quality information determining method, device, terminal and storage medium - Google Patents
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Abstract
The application discloses a quality information determining method, a device, a terminal and a storage medium, which belong to the technical field of communication, and the quality information determining method of the embodiment of the application comprises the following steps: the terminal receives a first signal, wherein a transmitting signal corresponding to the first signal is a signal transmitted by mapping first bearing information in a delay Doppler domain and then converting the first bearing information into a time domain; and the terminal determines quality information corresponding to the first signal in the delay Doppler domain.
Description
Technical Field
The application belongs to the technical field of communication, and particularly relates to a quality information determining method, a quality information determining device, a quality information determining terminal and a quality information storing medium.
Background
The information for describing the signal quality can be used for communication flows such as power control, cell switching and the like so as to ensure the communication quality of the terminal;
however, there is no quality information defining method based on the signal of the delay-doppler domain, and if a synchronization signal, a reference signal, or a signal for measuring cross link interference (Cross Link Interference, CLI) or the like is mapped in the delay-doppler domain, the terminal cannot perform cell handover and power control, which results in degradation of communication quality of the terminal.
Disclosure of Invention
The embodiment of the application provides a quality information determining method, a quality information determining device, a terminal and a storage medium, which can improve the communication quality of the terminal.
In a first aspect, a quality information determining method is provided, the method comprising:
the terminal receives a first signal, wherein a transmitting signal corresponding to the first signal is a signal transmitted by mapping first bearing information in a delay Doppler domain and then converting the first bearing information into a time domain;
and the terminal determines quality information corresponding to the first signal in the delay Doppler domain. In a second aspect, there is provided a quality information determining apparatus comprising:
the receiving module is used for receiving a first signal by the terminal, wherein the transmitting signal corresponding to the first signal is a signal transmitted by mapping the first bearing information in a delay Doppler domain and then converting the first bearing information into a time domain;
and the determining module is used for determining the quality information corresponding to the first signal in the delay Doppler domain. In a third 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, implement the steps of the method as described in the first aspect.
In a fourth aspect, a terminal is provided, including a processor and a communication interface, where the communication interface is configured to:
receiving a first signal, wherein a transmitting signal corresponding to the first signal is a signal transmitted by mapping first bearing information in a delay Doppler domain and then converting the first bearing information into a time domain;
the processor is configured to:
and determining quality information corresponding to the first signal in the delay Doppler domain.
In a fifth aspect, there is provided a quality information determining system of a received signal, comprising: a terminal operable to perform the steps of the quality information determining method as described in the first aspect.
In a sixth aspect, there is provided a readable storage medium having stored thereon a program or instructions which when executed by a processor implement the steps of the method according to the first aspect.
In a seventh aspect, a chip is provided, the chip comprising a processor and a communication interface, the communication interface and the processor being coupled, the processor being configured to execute programs or instructions for implementing the method according to the first aspect.
In an eighth aspect, a computer program/program product is provided, the computer program/program product being stored in a storage medium, the computer program/program product being executed by at least one processor to implement the steps of the quality information determining method according to the first aspect.
In the embodiment of the application, the terminal determines the quality information corresponding to the first signal in the delay Doppler domain after receiving the first signal in the delay Doppler domain, so as to determine the acquisition mode of the quality information corresponding to the signal in the delay Doppler domain, thereby facilitating the execution of services such as power control, cell switching and the like and improving the communication quality of the terminal.
Drawings
Fig. 1 shows a block diagram of a wireless communication system to which embodiments of the present application are applicable;
figure 2 is a schematic diagram of the interconversion of a delay-doppler plane and a time-frequency plane provided by an embodiment of the present application;
FIG. 3 is a schematic diagram of channel response relationships under different planes provided by an embodiment of the present application;
fig. 4 is a schematic diagram of a processing flow of a transceiver end of an OTFS multi-carrier system according to an embodiment of the present application;
fig. 5 is a schematic diagram of pilot mapping of a delay-doppler domain provided by an embodiment of the present application;
fig. 6 is a flow chart of a quality information determining method according to an embodiment of the present application;
figure 7 is a schematic diagram of a first delay-doppler region at a single port provided by an embodiment of the present application;
figure 8 is a schematic diagram of a first delay-doppler region for two ports provided by an embodiment of the present application;
FIG. 9 is a schematic diagram of a first signal provided by an embodiment of the present application;
FIG. 10 is a second schematic diagram of a first signal according to an embodiment of the application;
FIG. 11 is a third schematic diagram of a first signal according to an embodiment of the application;
fig. 12 is a schematic structural diagram of a quality information determining apparatus provided by an embodiment of the present application;
fig. 13 is a schematic structural diagram of a communication device according to an embodiment of the present application;
fig. 14 is a schematic diagram of a hardware structure of a terminal for implementing 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 embodiments of the present application are not limited to Long Term evolution (Long Term Ev)The evolution of solution, LTE)/LTE (LTE-Advanced, LTE-a) system 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 (SC-carrier Frequency Division Multiple Access, 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 New air interface (NR) system for purposes of example and uses NR terminology in much of the description that follows, but these techniques are also applicable to applications other than NR system applications, such as generation 6 (6) th Generation, 6G) communication system.
Fig. 1 shows a block diagram of a wireless communication system to which an embodiment of the present application is applicable. The wireless communication system includes a terminal 11 and a network device 12. The terminal 11 may be a mobile phone, a tablet (Tablet Personal Computer), a Laptop (Laptop Computer) or a terminal-side Device called a notebook, a personal digital assistant (Personal Digital Assistant, PDA), a palm top, a netbook, an ultra-mobile personal Computer (ultra-mobile personal Computer, UMPC), a mobile internet appliance (Mobile Internet Device, MID), an augmented reality (augmented reality, AR)/Virtual Reality (VR) Device, a robot, a Wearable Device (weather Device), a vehicle-mounted Device (VUE), a pedestrian terminal (PUE), a smart home (home Device with a wireless communication function, such as a refrigerator, a television, a washing machine, or a furniture), a game machine, a personal Computer (personal Computer, PC), a teller machine, or a self-service machine, and the Wearable Device includes: intelligent wrist-watch, intelligent bracelet, intelligent earphone, intelligent glasses, intelligent ornament (intelligent bracelet, intelligent ring, intelligent necklace, intelligent anklet, intelligent foot chain etc.), intelligent wrist strap, intelligent clothing etc.. It should be noted that the specific type of the terminal 11 is not limited in the embodiment of the present application. The network-side device 12 may comprise an access network device or a core network device, wherein 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 element. 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 core network device may include, but is not limited to, at least one of: core network nodes, core network functions, mobility management entities (Mobility Management Entity, MME), access mobility management functions (Access and Mobility Management Function, AMF), session management functions (Session Management Function, SMF), user plane functions (User Plane Function, UPF), policy control functions (Policy Control Function, PCF), policy and charging rules function units (Policy and Charging Rules Function, PCRF), edge application service discovery functions (Edge Application Server Discovery Function, EASDF), unified data management (Unified Data Management, UDM), unified data repository (Unified Data Repository, UDR), home subscriber server (Home Subscriber Server, HSS), centralized network configuration (Centralized network configuration, CNC), network storage functions (Network Repository Function, NRF), network opening functions (Network Exposure Function, NEF), local NEF (or L-NEF), binding support functions (Binding Support Function, BSF), application functions (Application Function, AF), and the like. It should be noted that, in the embodiment of the present application, only the core network device in the NR system is described as an example, and the specific type of the core network device is not limited.
The following will be described first:
1. OTFS communication technology;
the delay and doppler characteristics of a channel are essentially determined by the multipath channel. Signals arriving at the receiver through different paths have different arrival times because of differences in propagation paths. For example two echoes s 1 Sum s 2 Each experiences a distance d 1 And d 2 Arrive at the receiver, they arrive at the receiver with a time difference ofc is the speed of light. Due to echo s 1 Sum s 2 There is a time difference between them that incoherent superposition at the receiver side causes an observed signal amplitude jitter, i.e. a fading effect. Similarly, the doppler spread of a multipath channel is also due to multipath effects.
The Doppler effect is that the relative speeds exist at the receiving and transmitting ends, signals arriving at the receiver through different paths have different incidence angles relative to the normal line of the antenna, so that the difference of the relative speeds is caused, and the Doppler frequency shift of the signals of the different paths is further caused to be different. Assume that the original frequency of the signal is f 0 The relative speed of the receiving and transmitting end is Deltav, and the normal incidence included angle between the signal and the antenna of the receiving end is theta. Then there are:obviously, when two echoes s 1 Sum s 2 Through different paths to the receiving antenna with different incident angles theta 1 And theta 2 The Doppler shift Δf obtained at this time 1 And Δf 2 And also different.
In summary, the signal seen by the receiver is a superposition of component signals from different paths with different delays and doppler, and is wholly embodied as a received signal with fading and frequency shift relative to the original signal. While delay-doppler analysis is performed on the channel, it helps to collect delay-doppler information for each path, reflecting the delay-doppler response of the channel.
The full name of OTFS modulation techniques is orthogonal time-frequency space domain (Orthogonal Time Frequency) modulation. The technique logically maps information in a data packet of size mxn, e.g., QAM (Quadrature Amplitude Modulation) symbols, into an mxn trellis point on a two-dimensional delay-doppler plane, i.e., the pulses within each trellis point modulate a QAM symbol in the data packet.
Further, the data set on the m×n delay-doppler domain plane can be transformed onto the n×m time-frequency domain plane by designing a set of orthogonal two-dimensional basis functions, which transformation is mathematically called inverse octyl fourier transform (Inverse Sympletic Fourier Transform, ISSFT).
Correspondingly, the transformation from the time-frequency domain to the delay-doppler domain is called the octave transform (Sympletic Fourier Transform, SFFT). The physical meaning behind this is that the delay and doppler effect of a signal is in fact a linear superposition effect of a series of echoes with different time and frequency offsets after the signal has passed through a multi-channel. That is, delay-doppler analysis and time-frequency domain analysis can be obtained by the above-described ISSFT and SSFT interconversions.
Figure 2 is a schematic diagram of the interconversion of a delay-doppler plane and a time-frequency plane provided by an embodiment of the present application; as shown in fig. 2, OTFS techniques may transform a time-varying multipath channel into a time-invariant two-dimensional delay-doppler domain channel (of a certain duration), thereby directly reflecting the channel delay-doppler response characteristics in the wireless link due to the geometry of the relative positions of reflectors between transceivers. The advantages are that: OTFS eliminates the difficulty of conventional time-frequency domain analysis tracking of time-varying fading characteristics, which in turn extracts all diversity characteristics of the time-frequency domain channel by delay-doppler domain analysis. In a practical system, the number of delay paths and Doppler frequency shifts of a channel is far smaller than the number of time domain and frequency domain responses of the channel, and a channel impulse response matrix represented by the delay Doppler domain has sparsity. The OTFS technology is utilized to analyze the sparse channel matrix in the delay Doppler domain, so that the encapsulation of the reference signal can be more compact and flexible.
The core of OTFS modulation is to define symbols on the delay-doppler plane, transform to the time-frequency domain for transmission, and then the sink returns to the delay-doppler domain processing. Thus, a wireless channel response analysis method over the delay-doppler domain can be introduced.
FIG. 3 is a schematic diagram of a channel response relationship under different planes provided by an embodiment of the present application, as shown in FIG. 3, which shows a relationship between expressions of channel responses of signals under different planes when the signals pass through a linear time-varying wireless channel;
in fig. 3, H (τ, ν) represents a delay-doppler domain channel, H (t, f) represents a time-frequency domain channel, g (t, τ) represents a time-delay domain channel, B (v, f) represents a frequency-doppler domain channel, t, f, τ, v represents time, frequency, delay, and doppler, respectively. The SFFT transformation formula is:
h(τ,ν)＝∫∫H(t,f)e -j2π(νt-fτ) dτdv； (1)
where H (τ, ν) represents a delay-doppler domain channel and H (t, f) represents a time-frequency domain channel. Correspondingly, the transformation formula of the ISSFT is:
H(t,f)＝∫∫h(τ,ν)e j2π(νt-fτ) dτdν； (2)
the delay-doppler domain channel h (τ, v) is the sum of the channels of all multipaths, and can be expressed as:
wherein P represents the total diameter number, h i Channel gain representing the ith path, delta () represents Dirac delta function, tau i Represents the delay of the ith path, v i The Doppler of the ith path.
When the signal passes through the linear time-varying channel, let the time domain received signal be R (t), its corresponding frequency domain received signal be R (f), and there arer (t) may be expressed as follows:
r(t)＝s(t)*h(t)＝∫g(t,τ)s(t-τ)dτ； (4)
as can be seen from the relationship of figure 3,
g(t,τ)＝∫h(ν,τ)e j2πvt dν； (5)
substituting (5) into (4) to obtain:
r(t)∫∫h(ν,τ)s(t-τ)e j2πvt dτdν；(6)
from the relationship shown in fig. 3, the classical fourier transform theory, and equation (6), it follows:
Based on equation (7), the analysis of the delay-doppler domain in the OTFS system can be implemented by adding an additional signal processing procedure to the transceiver end depending on the existing communication framework established on the time-frequency domain. And the additional signal processing is only composed of Fourier transformation, and can be completely realized by the existing hardware without adding a new module. This good compatibility with existing hardware systems greatly facilitates the application of OTFS systems.
In a practical system, the OTFS technique can be conveniently implemented as a pre-processing module and a post-processing module of a filtered OFDM system, so that the OTFS technique has good compatibility with a multi-carrier system under the existing NR technique architecture.
When the OTFS is combined with the multi-carrier system, the realization mode of the transmitting end is as follows: the QAM symbol containing the information to be transmitted is carried by the waveform of the delay Doppler plane, converted into the waveform of the time-frequency domain plane in the traditional multi-carrier system through a two-dimensional inverse-octave Fourier transform (Inverse Sympletic Finite Fourier Transform, ISFFT), and then converted into a time-domain sampling point to be transmitted through one-dimensional inverse fast Fourier transform (Inverse Fast Fourier Transform, IFFT) and serial-parallel conversion of the symbol level.
Fig. 4 is a schematic process flow diagram of a transceiver end of an OTFS multi-carrier system according to an embodiment of the present application, and as shown in fig. 4, a receiver end of the OTFS system is approximately an inverse process of a transmitter end: after the time domain sampling points are received by a receiver, the time domain sampling points are subjected to parallel conversion and one-dimensional fast Fourier transform (Fast Fourier Transform, FFT) at a symbol level, firstly transformed into waveforms on a time-frequency domain plane, then subjected to two-dimensional octave Fourier transform (Sympletic Finite Fourier Transform, SFFT), transformed into waveforms on a delay Doppler domain plane, and then subjected to receiver processing on QAM symbols carried by the delay Doppler domain waveforms: including channel estimation and equalization, demodulation and decoding, etc.
The advantages of OTFS modulation are mainly manifested in the following aspects:
(a) OTFS modulation converts time-varying fading channels in the time-frequency domain between transceivers into deterministic non-fading channels in the delay-doppler domain. In the delay-doppler domain, each symbol in a set of information symbols transmitted at once experiences the same static channel response and signal-to-noise ratio (Signal Noise Ratio, SNR).
(b) OTFS systems resolve reflectors in the physical channel by delaying the doppler image and coherently combine the energy from the different reflection paths with a receive equalizer, effectively providing a non-fading static channel response. With the static channel characteristics described above, the OTFS system does not need to introduce closed loop channel adaptation to cope with fast changing channels like an OFDM system, thus improving system robustness and reducing complexity of system design.
(c) Since the number of states of delay-doppler in the delay-doppler domain is much smaller than the number of time-frequency states of the time-frequency domain, the channels in an OTFS system can be expressed in a very compact form. The OTFS system has less channel estimation overhead and is more accurate.
(d) Another advantage of OTFS is that it should be on extreme doppler channels. By analyzing the delay-doppler image under appropriate signal processing parameters, the doppler characteristics of the channel will be fully rendered, thus facilitating signal analysis and processing in doppler-sensitive scenarios (e.g., high-speed movement and millimeter waves).
Fig. 5 is a schematic diagram of pilot mapping of a delay-doppler domain provided by an embodiment of the present application; as shown in fig. 5, a pulsed pilot may be employed for channel estimation in an OTFS system. The transmitter places pilot frequency on the delay-doppler domain and converts to the time-frequency domainAnd then sent out. Placement of a pulsed pilot (e.g., the resource grid where the blocks in the left delay-doppler resource grid of fig. 5 reside) in a delay-doppler domain transmit signal of dimension mxn, the pilot location is typically (l) p ,k p ) The method comprises the steps of carrying out a first treatment on the surface of the In order to prevent mutual interference between pilot and data, which results in inaccurate channel estimation, considering the maximum delay and Doppler spread of the channel, at least a placement area (2 l) is placed around the pilot τ +1)(4k v Guard symbol of +1) -1 (e.g., the resource grid where the circle in the delay-Doppler resource grid on the left side of FIG. 5 is located), where l τ ＝τ max MΔf，k τ ＝τ max NT，τ max And v max Representing the maximum delay and the maximum doppler shift of the channel, respectively; rest position put MN- (2 l) τ +1)(4k v +1) (e.g., the resource bin where the crosses in the delay-doppler resource bin to the left in fig. 5 are located).
As shown in fig. 5, the receiver goes through a corresponding inverse operation to obtain a grid pattern of the delay-doppler domain. Due to the channel effect, a plurality of shifted pilot copies (e.g., the resource grid where the blocks in the delay-doppler resource grid on the right in fig. 5 are located) will appear in the guard symbol of the delay-doppler domain grid point, which means that a plurality of paths with different delay-doppler may appear in the channel. And the channel response h (tau, v) of the delay Doppler domain is estimated through the position deviation of the pilot frequency symbol at the receiving end, so that a channel response expression of a time-frequency domain can be obtained, and signal analysis and processing are convenient.
The quality information determining method, the quality information determining device, the terminal and the storage medium provided by the embodiment of the application are described in detail below through some embodiments and application scenes thereof with reference to the accompanying drawings.
Fig. 6 is a flow chart of a quality information determining method according to an embodiment of the present application; as shown in fig. 6, the method includes the steps of:
Step 600, a terminal receives a first signal, where a transmission signal corresponding to the first signal is a signal transmitted by mapping first bearer information in a delay-doppler domain and then converting the mapping first bearer information into a time domain;
in step 610, the terminal determines quality information corresponding to the first signal in the delay-doppler domain.
Alternatively, the execution body may be a terminal, which is a receiving end; the transmitting end can be network side equipment, the network side equipment can map a transmitting signal into a time domain after a delay Doppler domain, and then transmit the signal to a terminal at the receiving end, and the terminal at the receiving end can receive a first signal;
alternatively, the execution body may be a terminal, which is a receiving end; the transmitting end can be another terminal, the terminal at the transmitting end can map the transmitting signal into the time domain after being in the delay Doppler domain, and then transmit the transmitting signal to the terminal at the receiving end, and the terminal at the receiving end can receive the first signal;
optionally, after receiving the first signal, the terminal may determine quality information corresponding to the first signal in the delay-doppler domain.
Optionally, the first signal is a signal of the receiving end, the transmitting signal corresponding to the first signal is a signal converted to be transmitted in a time domain at the transmitting end, and the first bearer information is information mapped in a delay-doppler domain and may be a reference signal, a synchronization signal, and the like;
Optionally, after mapping the first bearer information such as the reference signal or the synchronization signal to the delay-doppler domain, the transmitting end converts the first bearer information to the time domain, and obtains the transmission signal for transmission, and the receiving end can receive the reception signal corresponding to the transmission signal, that is, the first signal.
Optionally, the transmission signal corresponding to the first signal is a signal that is transmitted by converting the first bearer information mapped in the delay-doppler domain into the time domain;
optionally, the transmission signal corresponding to the first signal is a signal transmitted by the terminal after mapping the first bearer information in the delay-doppler domain and converting to the time domain.
In the embodiment of the application, the terminal determines the quality information corresponding to the first signal in the delay Doppler domain after receiving the first signal in the delay Doppler domain, so as to determine the acquisition mode of the quality information corresponding to the signal in the delay Doppler domain, thereby facilitating the execution of services such as power control, cell switching and the like and improving the communication quality of the terminal.
Optionally, the terminal determines quality information corresponding to the first signal in the delay-doppler domain, including any one or more of the following:
the terminal determines a delay-doppler-domain received power (RSRP) corresponding to the first signal;
The terminal determines a delay-Doppler domain signal strength indication RSSI corresponding to the first signal;
the terminal determines the received quality RSRQ of the delay Doppler domain corresponding to the first signal; or (b)
And the terminal determines a delay Doppler domain signal and an interference evaluation index corresponding to the first signal.
Optionally, the quality information of the first signal corresponding to the delay-doppler domain may include delay-doppler domain received power RSRP (Reference Signal Receiving Power), delay-doppler domain received quality (Reference Signal Receiving Quality), delay-doppler domain signal strength indication RSSI (Received Signal Strength Indication), delay-doppler domain signal and interference assessment index.
Optionally, the quality information such as RSRP, RSRQ, rsr and the interference assessment index may be quality information in the 5G communication system.
The quality information (delay-doppler-domain received power RSRP, delay-doppler-domain signal strength indication RSSI, delay-doppler-domain received quality RSRQ, delay-doppler-domain signal and interference evaluation index) according to the embodiments of the present application may be information of other names that are applicable to other communication systems and have the same physical meaning as the quality information in the aforementioned 5G communication system.
Optionally, the determining, by the terminal, quality information corresponding to the first signal in the delay-doppler domain may include: the terminal determines the delay-Doppler domain receiving power RSRP corresponding to the first signal;
optionally, the determining, by the terminal, quality information corresponding to the first signal in the delay-doppler domain may include: the terminal determines a delay-Doppler domain signal strength indication RSSI corresponding to the first signal;
optionally, the determining, by the terminal, quality information corresponding to the first signal in the delay-doppler domain may include: the terminal determines the receiving quality RSRQ of the delay Doppler domain corresponding to the first signal;
optionally, the determining, by the terminal, quality information corresponding to the first signal in the delay-doppler domain may include: the terminal determines a delay Doppler domain signal and an interference evaluation index corresponding to the first signal;
optionally, the determining, by the terminal, quality information corresponding to the first signal in the delay-doppler domain may include: the terminal determines the delay Doppler domain receiving power corresponding to the first signal;
optionally, the determining, by the terminal, quality information corresponding to the first signal in the delay-doppler domain may include: the terminal determines a delay Doppler domain signal strength indication corresponding to the first signal;
Optionally, the determining, by the terminal, quality information corresponding to the first signal in the delay-doppler domain may include: the terminal determines the receiving quality of the delay Doppler domain corresponding to the first signal;
optionally, the determining, by the terminal, quality information corresponding to the first signal in the delay-doppler domain may include: the terminal determines a delay Doppler domain signal and an interference evaluation index corresponding to the first signal;
optionally, the determining, by the terminal, quality information corresponding to the first signal in the delay-doppler domain may include: the terminal determines the received power RSRP of the delay Doppler domain, the signal strength indication RSSI of the delay Doppler domain, the received quality RSRQ of the delay Doppler domain and the signal and interference evaluation index of the delay Doppler domain corresponding to the first signal;
optionally, the determining, by the terminal, quality information corresponding to the first signal in the delay-doppler domain may include: the terminal determines the received power of the delay Doppler domain, the signal strength indication of the delay Doppler domain, the received quality of the delay Doppler domain and the signal and interference evaluation index of the delay Doppler domain corresponding to the first signal;
optionally, the determining, by the terminal, quality information corresponding to the first signal in the delay-doppler domain may include: the terminal determines any one or any combination of delay-doppler-domain received power (RSRP), delay-doppler-domain signal strength indication (RSSI), delay-doppler-domain received quality (RSRQ) and delay-doppler-domain signals and interference evaluation indexes corresponding to the first signals;
Optionally, the determining, by the terminal, quality information corresponding to the first signal in the delay-doppler domain may include: and the terminal determines any one or any combination of delay-Doppler domain receiving power, delay-Doppler domain signal strength indication, delay-Doppler domain receiving quality and delay-Doppler domain signal and interference evaluation index corresponding to the first signal.
Optionally, the determining, by the terminal, the delay-doppler-domain received quality RSRQ corresponding to the first signal includes:
after the terminal determines the delay-doppler-domain received power RSRP corresponding to the first signal and the terminal determines the delay-doppler-domain signal strength indication RSSI corresponding to the first signal, the terminal determines the delay-doppler-domain received quality RSRQ corresponding to the first signal based on the delay-doppler-domain received power RSRP corresponding to the first signal and the delay-doppler-domain signal strength indication RSSI corresponding to the first signal.
Optionally, the delay-doppler-domain received quality RSRQ corresponding to the first signal may be determined based on the delay-doppler-domain received power RSRP and the delay-doppler-domain signal strength indication RSSI;
alternatively, the reception quality corresponding to the first signal may be determined based on the delay-doppler-domain reception power and the delay-doppler-domain signal strength indication.
Optionally, after the terminal determines the delay-doppler-domain received power RSRP corresponding to the first signal and the delay-doppler-domain signal strength indicator RSSI corresponding to the first signal, determining the delay-doppler-domain received quality RSRQ corresponding to the first signal based on the delay-doppler-domain received power RSRP corresponding to the first signal and the delay-doppler-domain signal strength indicator RSSI corresponding to the first signal;
alternatively, after the terminal determines the delay-doppler domain received power corresponding to the first signal and the delay-doppler domain signal strength indication corresponding to the first signal, the delay-doppler domain corresponding to the first signal may be determined based on the delay-doppler domain corresponding to the first signal and the delay-doppler domain corresponding to the first signal.
Optionally, the determining, by the terminal, the delay-doppler-domain received quality RSRQ corresponding to the first signal based on the delay-doppler-domain received power RSRP corresponding to the first signal and the delay-doppler-domain signal strength indication RSSI corresponding to the first signal includes:
the terminal passes the formula: delay-doppler domain reception qualityDetermining a delay-doppler-domain receiving quality RSRQ corresponding to the first signal;
Wherein L is any real number.
Alternatively, it may be defined that L times the ratio of the delay-doppler-domain received power RSRP and the delay-doppler-domain signal strength indication RSSI is the delay-doppler-domain received quality RSRQ, where L is any real number.
Optionally, the L is predefined by a protocol, or indicated by a communication peer, or determined by the terminal itself.
Optionally, in a case where the receiving end is a terminal and the communication counterpart (transmitting end) is a network-side device, the L is indicated by the communication counterpart by one or more of:
MAC CE；
an RRC message;
NAS messages;
managing the orchestration message;
user plane data;
DCI information;
a system information block SIB;
layer 1 signaling of a physical downlink control channel PDCCH;
information of a Physical Downlink Shared Channel (PDSCH);
MSG 2 information of a physical random access channel PRACH;
MSG 4 information of a physical random access channel PRACH; or (b)
MSG B information of physical random access channel PRACH.
Optionally, in a case where the receiving end is a terminal and the communication counterpart (transmitting end) is a terminal, the L is indicated by the communication counterpart by one or more of:
xn interface signaling;
PC5 interface signaling;
Information of a physical side link control channel PSCCH;
information of a physical side link shared channel PSSCH;
information of a physical side link broadcast channel PSBCH;
physical through link discovery channel PSDCH information; or (b)
The physical through link feeds back the information of the channel PSFCH.
Alternatively, it may be defined that L times the ratio of the delay-doppler-domain received power and the delay-doppler-domain signal strength indication is the delay-doppler-domain received quality, where L is any real number.
Alternatively, a delay may be definedThe delay-doppler-domain received power and the delay-doppler-domain signal strength indication are obtained based on the same first signal, i.e., the first signal contained in the first delay-doppler region when calculating the delay-doppler-domain received power is the same as the first signal contained in the second delay-doppler region when calculating the delay-doppler-domain signal strength indication.
Alternatively, a delay-Doppler domain interface may be definedQuality of collectionThe delay-doppler-domain received power RSRP and the delay-doppler-domain signal strength indication RSSI are obtained based on the same first signal, i.e., the first signal contained in the first delay-doppler zone when calculating the delay-doppler-domain received power is the same as the first signal contained in the second delay-doppler zone when calculating the delay-doppler-domain signal strength indication.
Alternatively, after the terminal determines the delay-doppler-domain received power corresponding to the first signal and the delay-doppler-domain signal strength indication corresponding to the first signal, the formula may be: determining the receiving quality of a delay Doppler domain corresponding to the first signal; wherein L is any real number.
Alternatively, after the terminal determines the delay-doppler-domain received power RSRP corresponding to the first signal and the delay-doppler-domain signal strength indication RSSI corresponding to the first signal, the formula may be: delay-doppler domain reception qualityDetermining a delay-doppler-domain receiving quality RSRQ corresponding to the first signal; wherein L is any real number.
Optionally, if the delay-doppler-domain received power is the delay-doppler-domain reference signal, the calculated delay-doppler-domain received quality is the delay-doppler-domain reference signal;
optionally, if the delay-doppler-domain received power is a delay-doppler-domain synchronization signal, the calculated delay-doppler-domain received quality is the delay-doppler-domain synchronization signal;
optionally, if the delay-doppler-domain received power RSRP is the delay-doppler-domain reference signal RSRP, the calculated delay-doppler-domain received quality RSRQ is the delay-doppler-domain reference signal RSRQ;
Optionally, if the delay-doppler-domain received power RSRP is the delay-doppler-domain synchronization signal RSRP, the calculated delay-doppler-domain received quality RSRQ is the delay-doppler-domain synchronization signal RSRQ.
Optionally, the determining, by the terminal, a delay-doppler-domain signal and an interference evaluation indicator corresponding to the first signal includes:
the terminal determines delay Doppler domain interference power, wherein the delay Doppler domain interference power is determined based on an interference measurement signal corresponding to the first signal;
after the terminal determines the delay-doppler-domain received power RSRP corresponding to the first signal, the terminal determines a delay-doppler-domain signal and an interference evaluation index corresponding to the first signal based on the delay-doppler-domain received power RSRP corresponding to the first signal and the delay-doppler-domain interference power.
Optionally, the delay-doppler-domain signal and the interference assessment indicator corresponding to the first signal may be determined based on a delay-doppler-domain interference power and a delay-doppler-domain received power RSRP corresponding to the first signal, wherein the delay-doppler-domain interference power is determined based on an interference measurement signal corresponding to the first signal;
Optionally, the delay-doppler-domain signal and the interference assessment indicator corresponding to the first signal may be determined based on a delay-doppler-domain interference power and a delay-doppler-domain received power corresponding to the first signal, wherein the delay-doppler-domain interference power is determined based on an interference measurement signal corresponding to the first signal;
optionally, after the terminal determines the delay-doppler-domain interference power and the delay-doppler-domain received power RSRP corresponding to the first signal, the delay-doppler-domain signal and the interference evaluation indicator corresponding to the first signal may be determined based on the delay-doppler-domain interference power and the delay-doppler-domain received power RSRP corresponding to the first signal;
alternatively, after the terminal determines the delay-doppler-domain interference power and the delay-doppler-domain received power corresponding to the first signal, the delay-doppler-domain signal and the interference evaluation index corresponding to the first signal may be determined based on the delay-doppler-domain interference power and the delay-doppler-domain received power corresponding to the first signal.
Optionally, the determining, by the terminal, a delay-doppler-domain signal and interference evaluation indicator corresponding to the first signal based on the delay-doppler-domain received power RSRP and the delay-doppler-domain interference power corresponding to the first signal includes:
The terminal passes the formula:determining a delay Doppler domain signal and an interference evaluation index corresponding to the first signal;
wherein T is any real number.
Alternatively, T times the delay-doppler-domain received power and the delay-doppler-domain interference power may be defined as the delay-doppler-domain signal-to-interference evaluation index, where T is any real number.
Alternatively, it may be defined that T times the delay-doppler-domain received power RSRP and the delay-doppler-domain interference power are delay-doppler-domain signal-to-interference evaluation indices, where T is any real number.
Alternatively, it is possible to define
Alternatively, it is possible to define
Alternatively, after the terminal determines the delay-doppler-domain received power and determines the delay-doppler-domain interference power based on the interference measurement signal corresponding to the first signal, the following formula is adopted: determining a delay Doppler domain signal and an interference evaluation index corresponding to the first signal; wherein T is any real number.
Alternatively, after the terminal determines the delay-doppler-domain received power RSRP and determines the delay-doppler-domain interference power based on the interference measurement signal corresponding to the first signal, the following formula is adopted:determining a delay Doppler domain signal and an interference evaluation index corresponding to the first signal; wherein T is any real number.
Optionally, in the case where the delay-doppler-domain interference power comprises interference, the delay-doppler-domain signal-to-interference estimation indicator is a signal-to-interference ratio (Signal to Interference Ratio, SIR);
optionally, where the delay-doppler-domain interference power includes interference and noise, the delay-doppler-domain signal-to-interference-plus-noise ratio (Signal to Interference plus Noise Ratio, SINR) is the delay-doppler-domain signal-to-interference-plus-noise ratio.
Optionally, the T is predefined by a protocol, or indicated by a communication peer, or determined by the terminal itself.
Optionally, in a case where the receiving end is a terminal and the communication counterpart (transmitting end) is a network-side device, the T is indicated by the communication counterpart by one or more of:
MAC CE；
an RRC message;
NAS messages;
managing the orchestration message;
user plane data;
DCI information;
a system information block SIB;
layer 1 signaling of a physical downlink control channel PDCCH;
information of a Physical Downlink Shared Channel (PDSCH);
MSG 2 information of a physical random access channel PRACH;
MSG 4 information of a physical random access channel PRACH; or (b)
MSG B information of physical random access channel PRACH.
Optionally, in a case where the receiving end is a terminal and the communication counterpart (transmitting end) is a terminal, the T is indicated by the communication counterpart by one or more of:
Xn interface signaling;
PC5 interface signaling;
information of a physical side link control channel PSCCH;
information of a physical side link shared channel PSSCH;
information of a physical side link broadcast channel PSBCH;
physical through link discovery channel PSDCH information; or (b)
The physical through link feeds back the information of the channel PSFCH.
Optionally, the delay-doppler-domain interference power is obtained by performing interference measurement on an interference measurement signal corresponding to the first signal.
Alternatively, any measurement method that can implement interference measurement on the interference measurement signal corresponding to the first signal is applicable to the embodiment of the present application, which is not limited herein.
Optionally, if the delay-doppler-domain received power RSRP is obtained based on a reference signal, the delay-doppler-domain interference power is also obtained based on a reference signal measurement, and the calculated delay-doppler-domain signal-to-interference evaluation index is the delay-doppler-domain reference signal SIR or SINR.
Optionally, if the delay-doppler-domain received power RSRP is obtained based on the synchronization signal, the delay-doppler-domain interference power is also obtained based on the synchronization signal measurement, and the calculated delay-doppler-domain signal-to-interference evaluation index is the delay-doppler-domain synchronization signal SIR or SINR.
Optionally, if the delay-doppler-domain received power is obtained based on the reference signal, the delay-doppler-domain interference power is also obtained based on the reference signal measurement, and the calculated delay-doppler-domain signal and interference assessment index are the delay-doppler-domain reference signal.
Optionally, if the delay-doppler-domain received power is obtained based on the synchronization signal, the delay-doppler-domain interference power is also obtained based on the synchronization signal measurement, and the calculated delay-doppler-domain signal and interference evaluation index are the delay-doppler-domain synchronization signal.
Optionally, the determining, by the terminal, the delay-doppler-domain received power RSRP corresponding to the first signal includes:
the terminal determines a first RSRP corresponding to a target port in a target time unit;
the terminal takes the first RSRP as delay-Doppler domain receiving power RSRP corresponding to the first signal;
wherein the first RSRP is an RSRP of a first signal received by the terminal from a target port within the target time unit.
Alternatively, the terminal may determine an RSRP of a first signal received in a target time unit from a target port (a transmission signal corresponding to the first signal is transmitted through the target port at a transmitting end), which may be referred to as a first RSRP corresponding to the target port in the target time unit, and take the first RSRP corresponding to the target port in the target time unit as a delay-doppler-domain received power RSRP corresponding to the first signal.
Optionally, the determining, by the terminal, the delay-doppler-domain received power RSRP corresponding to the first signal includes:
the terminal determines a first RSRP corresponding to a target port in a target time unit, wherein the first RSRP is the RSRP of a first signal received by the terminal from the target port in the target time unit;
the terminal determines a second RSRP corresponding to the target time unit based on the first RSRP corresponding to the target ports in the target time unit;
and the terminal takes the second RSRP as delay-Doppler domain receiving power RSRP corresponding to the first signal.
Optionally, the terminal may first determine a plurality of first RSRPs, where the plurality of first RSRPs correspond to the same target time unit and correspond to different target ports, after determining first RSRPs corresponding to a plurality of target ports in one target time unit, determine a second RSRP corresponding to the target time unit based on the first RSRPs corresponding to the plurality of target ports in the target time unit, and then use the second RSRP as the delay-doppler-domain received power RSRP corresponding to the first signal.
For example, the terminal may first determine four first RSRP, which correspond to the same target time unit t1 and to different target ports, respectively to the target ports p1, p2, p3, and p4, the first RSRP corresponding to the target port p1, the second RSRP corresponding to the target port p2, the third RSRP corresponding to the target port p3, and the fourth RSRP corresponding to the target port p4; then, based on the 4 first RSRPs, a second RSRP corresponding to the target time unit t1 may be obtained by calculation, and then the second RSRP corresponding to the target time unit t1 may be used as the delay-doppler-domain received power RSRP corresponding to the first signal.
Optionally, the determining, by the terminal, the delay-doppler-domain received power RSRP corresponding to the first signal includes:
the terminal determines a first RSRP corresponding to a target port in a target time unit, wherein the first RSRP is the RSRP of a first signal from the target port received by the terminal in the target time unit;
the terminal determines a second RSRP corresponding to the target time unit based on the first RSRP corresponding to the target ports in the target time unit;
The terminal determines a third RSRP based on the second RSRP corresponding to the target time units respectively;
and the terminal takes the third RSRP as delay-Doppler domain receiving power RSRP corresponding to the first signal.
Optionally, the terminal may first determine a plurality of first RSRPs, where the plurality of first RSRPs correspond to the same target time unit and correspond to different target ports, after determining first RSRPs corresponding to a plurality of target ports in one target time unit, determine a second RSRP corresponding to the target time unit based on the first RSRPs corresponding to the plurality of target ports in the target time unit, and determine second RSRPs corresponding to the plurality of target time units based on this manner, where the target ports corresponding to the plurality of second RSRPs may be the same ports; after determining the second RSRP corresponding to each of the target time units, the terminal may determine a third RSRP based on the second RSRP corresponding to each of the target time units, and use the third RSRP as the delay-doppler-domain received power RSRP corresponding to the first signal.
For example, the terminal may first determine four first RSRP, which correspond to the same target time unit t1 and to different target ports, respectively to the target ports p1, p2, p3, and p4, the first RSRP corresponding to the target port p1, the second RSRP corresponding to the target port p2, the third RSRP corresponding to the target port p3, and the fourth RSRP corresponding to the target port p4; then, based on the 4 first RSRP, a second RSRP corresponding to the target time unit t1 can be obtained through calculation; in the same way, a second RSRP corresponding to the target time unit t2, a second RSRP corresponding to the target time unit t3, and a second RSRP corresponding to the target time unit t4 can be determined; it should be noted that, four first RSRP for determining the second RSRP corresponding to the target time unit t2 correspond to the same target time unit t2 and correspond to different target ports, and respectively correspond to the target ports p1, p2, p3, and p4; four first RSRP for determining the second RSRP corresponding to the target time unit t3 correspond to the same target time unit t3 and to different target ports, respectively corresponding to the target ports p1, p2, p3, and p4; four first RSRP for determining the second RSRP corresponding to the target time unit t4 correspond to the same target time unit t2 and to different target ports, respectively corresponding to the target ports p1, p2, p3, and p4; after obtaining the second RSRP corresponding to the target time unit t1, the second RSRP corresponding to the target time unit t2, the second RSRP corresponding to the target time unit t3, and the second RSRP corresponding to the target time unit t4, a third RSRP may be determined based on the four second RSRP, and the third RSRP may be used as the delay-doppler-domain received power RSRP corresponding to the first signal.
Alternatively, the delay-doppler-domain received power RSRP may be defined as the first RSRP, the second RSRP, or the third RSRP, which is used as quality information of the received signal, and may be used to calculate the delay-doppler-domain received quality and/or the delay-doppler-domain signal and interference evaluation index.
Alternatively, the operation of calculating the third RSRP from the plurality of second RSRPs may also be referred to as filtering. The third RSRP filters the plurality of second RSRPs to eliminate the effects of fast fading and reduce the effects of short term variations.
Alternatively, the second RSRP may be used primarily for procedures requiring a response with minimal delay, such as beam management procedures requiring fast switching between beams, when used as a delay-doppler-domain received power RSRP.
Alternatively, the third RSRP may have a larger effect on radio resource management when used as a delay-doppler-domain received power RSRP, which is a long-term observation of channel conditions. For example, filtering based on the second RSRP to obtain a third RSRP, and triggering a handover procedure based on the third RSRP can reduce the risk of ping-pong handover between serving cells.
Optionally, the terminal determines, based on the first RSRP corresponding to each of the plurality of target ports in the target time unit, a second RSRP corresponding to the target time unit, including any one of the following:
The terminal determines the linear average value of the first RSRP corresponding to each of the plurality of target ports in the target time unit, and the linear average value is used as a second RSRP corresponding to the target time unit; or (b)
The terminal determines weighted average values of the first RSRPs corresponding to the target ports in the target time unit respectively, and the weighted average values are used as second RSRPs corresponding to the target time unit; or (b)
The terminal determines the largest first RSRP in the first RSRPs respectively corresponding to a plurality of target ports in the target time unit as the second RSRP corresponding to the target time unit; or (b)
And the terminal determines the minimum first RSRP in the first RSRPs respectively corresponding to the plurality of target ports in the target time unit as the second RSRP corresponding to the target time unit.
Optionally, when the terminal determines the second RSRP corresponding to the target time unit based on the first RSRP corresponding to each of the plurality of target ports in the same target time unit, the terminal may determine a linear average value of the first RSRP corresponding to each of the plurality of target ports in the target time unit, and use the linear average value as the second RSRP corresponding to the target time unit;
Optionally, when determining the second RSRP corresponding to the target time unit based on the first RSRP corresponding to each of the plurality of target ports in the same target time unit, the terminal may determine a weighted average value of the first RSRP corresponding to each of the plurality of target ports in the target time unit, and use the weighted average value as the second RSRP corresponding to the target time unit;
optionally, when the terminal determines the second RSRP corresponding to the target time unit based on the first RSRP corresponding to each of the plurality of target ports in the same target time unit, the terminal may determine the largest first RSRP among the first RSRP corresponding to each of the plurality of target ports in the target time unit, and use the largest first RSRP as the second RSRP corresponding to the target time unit;
optionally, when determining the second RSRP corresponding to the target time unit based on the first RSRP corresponding to each of the plurality of target ports in the same target time unit, the terminal may determine a minimum first RSRP among the first RSRP corresponding to each of the plurality of target ports in the target time unit, and use the minimum first RSRP as the second RSRP corresponding to the target time unit.
Optionally, the first bearer information corresponding to the sending signals respectively transmitted by the multiple target ports is transmitted through delay-doppler resources that do not overlap with each other.
Alternatively, for the above-mentioned plurality of target ports, there may be target ports that are distinguished by delay-doppler resources that do not overlap with each other;
optionally, the plurality of target ports send the transmission signals corresponding to the first signals on delay-doppler resources that do not overlap with each other.
Taking the second RSRP as an example, when the P ports are distinguished by delay-doppler resources that do not overlap with each other, a first RSRP corresponding to each first signal may be calculated. And a second RSRP may be determined based on the P first RSRPs. Wherein P is greater than or equal to 1. When determining the second RSRP based on the P first RSRP, the second RSRP may be determined based on a mean value of the P first RSRP or a maximum value or a minimum value of the P first RSRP; the mean value may be a linear mean value or a weighted mean value.
Optionally, the first bearer information corresponding to the sending signals respectively transmitted by the plurality of target ports is a mutually orthogonal sequence.
Alternatively, for the above-mentioned plurality of target ports, there may be target ports distinguished by orthogonal sequences;
Optionally, the first bearer information corresponding to the sending signals respectively transmitted by the plurality of target ports is a mutually orthogonal sequence.
Optionally, the first bearer information corresponding to the sending signals respectively transmitted by the plurality of target ports is a mutually orthogonal sequence.
Taking the determination of the second RSRP as an example, when the P ports are differentiated by the orthogonal sequences, the sequence sliding window correlation detection may be performed first in the first delay-doppler region of the received signal, so as to obtain the received signal, i.e. the first signal, of the transmission signal corresponding to each port in the first delay-doppler region. And then, based on the first signals corresponding to each port, calculating the first RSRP of each port, and obtaining P first RSRPs. And a second RSRP may be determined based on the P first RSRPs. Wherein P is greater than or equal to 1. When determining the second RSRP based on the P first RSRP, the second RSRP may be determined based on a mean value of the P first RSRP or a maximum value or a minimum value of the P first RSRP; the mean value may be a linear mean value or a weighted mean value.
Optionally, the terminal determines a third RSRP based on the second RSRP corresponding to each of the plurality of target time units, including any one of the following:
The terminal determines the linear average value of the second RSRP corresponding to each of the plurality of target time units as a third RSRP corresponding to the target time unit; or (b)
The terminal determines weighted average values of the second RSRPs corresponding to the target time units respectively and takes the weighted average values as third RSRPs corresponding to the target time units; or (b)
The terminal determines the largest second RSRP in the second RSRPs respectively corresponding to the target time units as a third RSRP corresponding to the target time unit; or (b)
And the terminal determines the minimum second RSRP in the second RSRPs corresponding to the target time units respectively, and takes the minimum second RSRP as a third RSRP corresponding to the target time unit.
Optionally, when the terminal determines the third RSRP based on the second RSRP corresponding to each of the plurality of target time units, the terminal may first determine a linear average value of the second RSRP corresponding to each of the plurality of target time units, and use the linear average value as the third RSRP corresponding to the target time unit;
optionally, when the terminal determines the third RSRP based on the second RSRP corresponding to each of the plurality of target time units, the terminal may first determine a weighted average of the second RSRP corresponding to each of the plurality of target time units, and use the weighted average as the third RSRP corresponding to the target time unit;
Optionally, when determining the third RSRP based on the second RSRP corresponding to each of the plurality of target time units, the terminal may first determine a largest second RSRP among the second RSRP corresponding to each of the plurality of target time units, and use the largest second RSRP as the third RSRP corresponding to the target time unit;
optionally, when determining the third RSRP based on the second RSRP corresponding to each of the plurality of target time units, the terminal may first determine a smallest second RSRP among the second RSRP corresponding to each of the plurality of target time units, and use the smallest second RSRP as the third RSRP corresponding to the target time unit.
Optionally, the determining, by the terminal, the delay-doppler-domain received power RSRP corresponding to the first signal includes:
the terminal determines a first RSRP corresponding to a target port in a target time unit, wherein the first RSRP is the RSRP of a first signal from the target port received by the terminal in the target time unit;
the terminal determines a fourth RSRP based on the first RSRP corresponding to the target port in the target time units;
and the terminal takes the fourth RSRP as delay-Doppler domain receiving power RSRP corresponding to the first signal.
Optionally, the terminal may first determine a plurality of first RSRPs, where the plurality of first RSRPs correspond to the same target port and correspond to different target time units, after determining first RSRPs corresponding to one target port in a plurality of target time units respectively, may determine a fourth RSRP corresponding to the target port based on the first RSRPs corresponding to the one target port in the plurality of target time units respectively, and then may use the fourth RSRP as the delay-doppler-domain received power RSRP corresponding to the first signal.
For example, the terminal may first determine four first RSRPs, where the four first RSRPs correspond to the same target port p1 and to different target time units, respectively correspond to the target time units t1, t2, t3, and t4, the first RSRP corresponds to the target time unit t1, the second first RSRP corresponds to the target time unit t2, the third first RSRP corresponds to the target time unit t3, and the fourth first RSRP corresponds to the target time unit t4; then, based on the 4 first RSRPs, a fourth RSRP corresponding to the target port p1 may be obtained by calculation, and then the fourth RSRP corresponding to the target port p1 may be used as the delay-doppler-domain received power RSRP corresponding to the first signal.
Optionally, the delay-doppler-domain received power RSRP may be defined as the first RSRP, the second RSRP, the third RSRP, or the fourth RSRP, which is used as quality information of the received signal, and may be used to calculate the delay-doppler-domain received quality and/or the delay-doppler-domain signal and interference evaluation index.
Alternatively, the delay-doppler-domain received power may be defined as the first RSRP, the second RSRP, the third RSRP, or the fourth RSRP, which are used as quality information of the received signal, and may be used to calculate the delay-doppler-domain received quality and/or the delay-doppler-domain signal and interference evaluation index.
Optionally, the terminal determines a fourth RSRP based on the first RSRP corresponding to the target port in each of the plurality of target time units, including any one of the following:
the terminal determines the linear average value of the first RSRP corresponding to the target port in the plurality of target time units as a fourth RSRP corresponding to the target time unit; or (b)
The terminal determines weighted average values of first RSRPs corresponding to the target port in a plurality of target time units respectively, and the weighted average values are used as fourth RSRPs corresponding to the target time units; or (b)
The terminal determines the largest first RSRP in the first RSRPs corresponding to the target port in a plurality of target time units respectively, and the largest first RSRP is used as a fourth RSRP corresponding to the target time unit; or (b)
And the terminal determines the minimum first RSRP in the first RSRPs respectively corresponding to the target port in a plurality of target time units, and the minimum first RSRP is used as a fourth RSRP corresponding to the target time unit.
Optionally, when determining the fourth RSRP based on the first RSRP corresponding to one target port in each of the plurality of target time units, the terminal may determine a linear average value of the first RSRP corresponding to the one target port in each of the plurality of target time units, and use the linear average value as the fourth RSRP corresponding to the target time unit;
optionally, when determining the fourth RSRP based on the first RSRP corresponding to one target port in each of the plurality of target time units, the terminal may determine a weighted average value of the first RSRP corresponding to the one target port in each of the plurality of target time units, and use the weighted average value as the fourth RSRP corresponding to the target time unit;
optionally, when determining the fourth RSRP based on the first RSRP corresponding to one target port in each of the plurality of target time units, the terminal may determine the largest first RSRP among the first RSRP corresponding to the one target port in each of the plurality of target time units, and use the largest first RSRP as the fourth RSRP corresponding to the target time unit;
Optionally, when determining the fourth RSRP based on the first RSRP corresponding to one target port in each of the plurality of target time units, the terminal may determine the smallest first RSRP among the first RSRP corresponding to the one target port in each of the plurality of target time units, and use the smallest first RSRP as the fourth RSRP corresponding to the target time unit.
Optionally, the plurality of the target time units are continuous, or periodic, or non-periodic and discontinuous.
Alternatively, the target time unit may be a delay-doppler frame, or a delay-doppler subframe, or other time unit suitable for the delay-doppler domain, which is not limited by the embodiment of the present application.
Alternatively, taking the target time unit as an example of delaying the doppler frame, the average value of the K second RSRPs may be calculated or the maximum value or the minimum value of the K second RSRPs may be determined and denoted as the third RSRP. The K second RSRP may be obtained based on K delay-doppler frames that are consecutive, K delay-doppler frames that occur periodically, or any (intermittent) K delay-doppler frames. The mean may be a mean obtained by linear averaging. Or may be an average value obtained by weighted average, that is, the K second RSRP may be given different weights when averaged.
Optionally, the determining, by the terminal, a first RSRP corresponding to a target port in a target time unit includes:
the terminal determines a first delay Doppler area corresponding to a first signal received from a target port in the target time unit, wherein the first delay Doppler area comprises a mapping area and a guard band area of the first bearing information in the delay Doppler area;
and the terminal determines the RSRP corresponding to the first delay Doppler area and is used as the first RSRP corresponding to the target port in the target time unit.
Optionally, when determining the first RSRP, that is, determining the first RSRP corresponding to a target port in a target time unit, the target time unit may be any time unit corresponding to the first signal, and the target port may be any port for transmitting a transmission signal corresponding to the first signal.
Optionally, when determining the first RSRP, that is, determining the first RSRP corresponding to a target port in a target time unit, the terminal may first determine a first delay-doppler region corresponding to a first signal received from the target port in the target time unit;
Optionally, the first delay-doppler region includes a mapping region and a guard band region of the first bearer information in the delay-doppler region;
optionally, the terminal may determine an RSRP corresponding to the first delay-doppler region, and use the RSRP as the first RSRP corresponding to the target port in the target time unit.
Alternatively, the first delay-doppler region may be jointly determined by a set of start values of the delay direction and a set of start values of the doppler direction.
If the first delay-doppler region is identical to the mapping region and guard band region of the first signal, the indication of the first delay-doppler region may multiplex the indication of the first signal and its guard band without a dedicated indication. If the first delay-doppler region is not identical to (e.g., greater than) the mapping region and the guard band region of the first signal, the transmitting end may indicate the first delay-doppler region to the terminal through the indication information.
Optionally, the determining, by the terminal, the RSRP corresponding to the first delay-doppler region includes:
and the terminal determines the RSRP corresponding to the first delay Doppler region in the delay Doppler domain.
Optionally, the terminal may determine, in the delay-doppler domain, an RSRP corresponding to the first delay-doppler region, and use the RSRP as the first RSRP corresponding to the target port in the target time unit.
Optionally, the determining, by the terminal, the RSRP corresponding to the first delay-doppler region in the delay-doppler domain includes:
the terminal determines first signal power, wherein the first signal power is signal power of Z signals which are ranked in the front from big to small in signal power of all signals in the first delay Doppler region, or the first signal power is signal power which is higher than a first power threshold in signal power of all signals in the first delay Doppler region;
the terminal determines a linear average value of the first signal power as an RSRP corresponding to the first delay Doppler area;
z is a positive integer.
Optionally, when determining the RSRP corresponding to the first delay-doppler zone in the delay-doppler zone, the terminal may first determine signal powers of the first Z rows from large to small among signal powers of all signals in the first delay-doppler zone, and use the signal powers of the first Z rows as the first signal power, so as to determine a linear average value of the signal powers of the first Z, that is, determine a linear average value of the first signal power, as the RSRP corresponding to the first delay-doppler zone;
Optionally, when the terminal determines the RSRP corresponding to the first delay-doppler zone in the delay-doppler zone, the terminal may first determine signal powers above a first power threshold among signal powers of all signals in the first delay-doppler zone, and use the signal powers above the first power threshold as the first signal powers, and then determine a linear average value of the signal powers above the first power threshold, that is, determine a linear average value of the first signal powers, as the RSRP corresponding to the first delay-doppler zone.
Optionally, the determining, by the terminal, a linear average of the first signal power includes:
the terminal determining a first sum of the first signal powers;
the terminal divides the first sum by a first coefficient to obtain a linear average value of the first signal power;
wherein the first coefficient is or is proportional to any one of:
a total number of delay-doppler resource grids within the first delay-doppler region; z;
the number of signals in the first delay-doppler region for which the signal power is above a first power threshold;
delay direction resource grid total number;
The total number of Doppler-direction resource grids; or (b)
Delay-doppler-resource-grid total number.
Alternatively, the terminal may first determine a first sum of the first signal powers when determining a linear average of the first signal powers; and dividing the first sum by a first coefficient to obtain a linear average of the first signal power.
For example, in the delay-doppler-domain received signal (i.e., the first signal), the sum of the powers of the Z signals having the greatest power in the first delay-doppler region may be calculated, and the sum of the powers divided by the coefficient r may be denoted as the first RSRP. Where the coefficient r is the first coefficient, and the function of dividing by the coefficient r is to make a linear average.
For example, in the delay-doppler-domain received signal (i.e., the first signal), the sum of the powers of the signals in the first delay-doppler region above the first power threshold may be calculated, and then the sum of the powers divided by the coefficient w may be denoted as the first RSRP. Where the coefficient w is the first coefficient, and the division by the coefficient w functions as a linear average.
Optionally, the first coefficient is predefined by a protocol, or indicated by a communication peer, or determined by the terminal itself.
Optionally, in a case where the receiving end is a terminal and the communication counterpart (transmitting end) is a network-side device, the first coefficient is indicated by the communication counterpart through one or more of:
MAC CE；
An RRC message;
NAS messages;
managing the orchestration message;
user plane data;
DCI information;
a system information block SIB;
layer 1 signaling of a physical downlink control channel PDCCH;
information of a Physical Downlink Shared Channel (PDSCH);
MSG 2 information of a physical random access channel PRACH;
MSG 4 information of a physical random access channel PRACH; or (b)
MSG B information of physical random access channel PRACH.
Optionally, in a case where the receiving end is a terminal and the communication counterpart (transmitting end) is a terminal, the first coefficient is indicated by the communication counterpart by one or more of:
xn interface signaling;
PC5 interface signaling;
information of a physical side link control channel PSCCH;
information of a physical side link shared channel PSSCH;
information of a physical side link broadcast channel PSBCH;
physical through link discovery channel PSDCH information; or (b)
The physical through link feeds back the information of the channel PSFCH.
Alternatively, the first coefficient may be equal to (or proportional to) the total number of delay-doppler resource grids within the first delay-doppler region;
alternatively, the first coefficient may be equal to (or proportional to) N, or equal to (or proportional to) the number of signals in the first delay-doppler region having a power above the first power threshold;
Alternatively, the first coefficient may be equal to (or proportional to) the total number of delay-direction resource grids;
alternatively, the first coefficient may be equal to (or proportional to) the total number of doppler-direction resource grids;
alternatively, the first coefficient may be equal to (or proportional to) the total number of delay-doppler resource grids.
Optionally, the determining, by the terminal, the RSRP corresponding to the first delay-doppler region includes:
and the terminal determines the RSRP corresponding to the first delay Doppler region in the time-frequency domain.
Optionally, the terminal may determine, in a time-frequency domain, an RSRP corresponding to the first delay-doppler region, and use the RSRP as the first RSRP corresponding to the target port in a target time unit.
Optionally, the determining, by the terminal, the RSRP corresponding to the first delay-doppler region in the time-frequency domain includes:
the terminal determines a second signal in the first delay Doppler region from first signals received from a target port in the target time unit, wherein the second signal is a signal of which all signals in the first delay Doppler region are ranked in the first Q according to the sequence of signal power from big to small, or the second signal is a signal of which the signal power in all signals in the first delay Doppler region is higher than a second power threshold;
The terminal converts the second signal to a time-frequency domain to obtain a third signal;
the terminal determines a linear average value of the signal power of the third signal as an RSRP corresponding to the first delay-Doppler area;
q is a positive integer.
Optionally, when the terminal determines the RSRP corresponding to the first delay-doppler region in the time-frequency domain, it may first determine that all signals in the first delay-doppler region are ranked in order of signal power from large to small (may be referred to as a second signal), and may convert the signals ranked in the first Q (the second signal) to the time-frequency domain to obtain a third signal, and then may determine a linear average value of the signal power of the third signal, as the RSRP corresponding to the first delay-doppler region;
optionally, when the terminal determines the RSRP corresponding to the first delay-doppler region in the time-frequency domain, it may first determine signals (may be referred to as second signals) with signal powers higher than a second power threshold in all signals in the first delay-doppler region, and may convert the signals (second signals) with signal powers higher than the second power threshold into the time-frequency domain to obtain a third signal, so as to determine a linear average value of the signal powers of the third signal, as the RSRP corresponding to the first delay-doppler region;
Q is a positive integer.
Optionally, the determining, by the terminal, a linear average of signal powers of the third signal includes:
the terminal determining a second sum of signal powers of the third signal;
the terminal divides the second sum by a second coefficient to obtain a linear average value of the signal power of the third signal;
wherein the second coefficient is or is proportional to any one of:
a total number of delay-doppler resource grids within the first delay-doppler region; q is a group;
the number of signals in the first delay-doppler region for which the signal power is above a second power threshold;
delay direction resource grid total number;
the total number of Doppler-direction resource grids; or (b)
Delay-doppler-resource-grid total number.
Alternatively, when the terminal may determine the linear average of the signal power of the third signal, a second sum of the signal powers of the third signal may be determined, and then the second sum is divided by a second coefficient to obtain the linear average of the signal powers of the third signal, which is used as the RSRP corresponding to the first delay-doppler region and further used as the first RSRP.
For example, Q signals with the largest power in the first delay-doppler region are selected from the delay-doppler-domain received signals, and are called second signals, and are converted into a time-frequency domain to obtain third signals, and the sum of the powers of the third signals is calculated, and divided by a coefficient r to be used as RSRP corresponding to the first delay-doppler region, and the RSRP is denoted as first RSRP. The selecting operation refers to reserving selected signals, and all other signals which are not selected are set to zero. The coefficient r is the second coefficient, and the function of dividing by the coefficient r is to make a linear average.
For example, in the delay-doppler domain received signals, signals with power higher than a second power threshold in a first delay-doppler region are selected, called second signals, converted into a time-frequency domain to obtain third signals, the power sum of the third signals is calculated, and the power sum is divided by a coefficient w to be used as RSRP corresponding to the first delay-doppler region, and the RSRP is denoted as first RSRP. The selecting operation refers to reserving selected signals, and all other signals which are not selected are set to zero. The coefficient w is the second coefficient, and the function of dividing by the coefficient w is to make a linear average.
Optionally, the second coefficient is predefined by a protocol, or indicated by a communication peer, or determined by the terminal itself.
Optionally, in a case where the receiving end is a terminal and the communication counterpart is a network-side device, the second coefficient is indicated by the communication counterpart by one or more of:
MAC CE；
an RRC message;
NAS messages;
managing the orchestration message;
user plane data;
DCI information;
a system information block SIB;
layer 1 signaling of a physical downlink control channel PDCCH;
information of a Physical Downlink Shared Channel (PDSCH);
MSG 2 information of a physical random access channel PRACH;
MSG 4 information of a physical random access channel PRACH; or (b)
MSG B information of physical random access channel PRACH.
Optionally, in the case where the receiving end is a terminal and the communication counterpart is a terminal, the second coefficient is indicated by the communication counterpart by one or more of:
xn interface signaling;
PC5 interface signaling;
information of a physical side link control channel PSCCH;
information of a physical side link shared channel PSSCH;
information of a physical side link broadcast channel PSBCH;
physical through link discovery channel PSDCH information; or (b)
The physical through link feeds back the information of the channel PSFCH.
Alternatively, the second coefficient may be equal to (or proportional to) the total number of delay-doppler resource grids within the first delay-doppler region;
alternatively, the second coefficient may be equal to (or proportional to) M, or equal to (or proportional to) the number of signals in the first delay-doppler region having a power above the second power threshold;
alternatively, the second coefficient may be equal to (or proportional to) the total number of delay-direction resource grids;
alternatively, the second coefficient may be equal to (or proportional to) the total number of doppler-direction resource grids;
Alternatively, the second coefficient may be equal to (or proportional to) the total number of delay-doppler resource grids.
Optionally, the determining, by the terminal, a delay-doppler-domain signal strength indication RSSI corresponding to the first signal includes:
the terminal determines a first RSSI corresponding to a target time unit, wherein the first RSSI is the RSSI of a first signal received by the terminal in the target time unit;
and the terminal takes the first RSSI corresponding to the target time unit as the delay Doppler domain signal strength indication RSSI corresponding to the first signal.
Optionally, when determining the RSSI of the first signal corresponding to the delay-doppler-domain signal strength indicator, the terminal may first determine the RSSI of the first signal received by the terminal in a target time unit, as the first RSSI corresponding to the target time unit, and then may use the first RSSI corresponding to the target time unit as the RSSI of the delay-doppler-domain signal strength indicator corresponding to the first signal.
Alternatively, the first RSSI counted power may include the total power of all of the following signals: the first signal, the data signal, and noise and interference superimposed on the above signals.
Optionally, the determining, by the terminal, a delay-doppler-domain signal strength indication RSSI corresponding to the first signal includes:
the terminal determines a first RSSI corresponding to a target time unit, wherein the first RSSI is the RSSI of a first signal received by the terminal in the target time unit;
the terminal determines a second RSSI based on the first RSSIs respectively corresponding to the target time units;
and the terminal takes the second RSSI as a delay Doppler domain signal strength indication RSSI corresponding to the first signal.
Alternatively, the terminal may first determine a plurality of first RSSI, where the plurality of first RSSI corresponds to different target time units, and after determining the first RSSI respectively corresponding to the plurality of target time units, determine the second RSSI based on the first RSSI respectively corresponding to the plurality of target time units, and then use the second RSSI as the delay doppler domain signal strength indication RSSI corresponding to the first signal.
For example, the terminal may first determine four first RSSI's corresponding to different target time units, respectively corresponding to target time units t1, t2, t3, and t4, the first RSSI corresponding to target time unit t1, the second first RSSI corresponding to target time unit t2, the third first RSSI corresponding to target time unit t3, and the fourth first RSSI corresponding to target time unit t4; the second RSSI may then be calculated based on the 4 first RSSIs, and may be used as the delay-doppler-domain signal strength indication RSSI for the first signal.
Alternatively, the delay-doppler-domain received power RSRP may be defined as the first RSSI or the second RSSI, which is used as quality information of the received signal, and may also be used to calculate the delay-doppler-domain received quality.
Alternatively, the operation of calculating the second RSSI from the plurality of first RSSI is also referred to as filtering.
The delay-doppler-domain signal strength indication RSSI may be defined as either the first RSSI or the second RSSI described above.
The delay-doppler domain signal strength indication may be defined as the first RSSI or the second RSSI described above.
Optionally, the plurality of the target time units are continuous, or periodic, or non-periodic and discontinuous.
Alternatively, the target time unit may be a delay-doppler frame, or a delay-doppler subframe, or other time unit suitable for the delay-doppler domain, which is not limited by the embodiment of the present application.
Alternatively, taking the target time unit as an example of delaying the doppler frame, the average value of K first RSSI may be calculated or the maximum value or the minimum value of K first RSSI may be determined and recorded as the second RSSI. The K first RSSIs may be obtained based on K delay-doppler frames that are consecutive, K delay-doppler frames that occur periodically, or any (intermittent) K delay-doppler frames. The mean may be a mean obtained by linear averaging. The average value obtained by weighted average, that is, the K first RSSI values are given different weights when being averaged.
Optionally, the determining, by the terminal, a first RSSI corresponding to a target time unit includes:
the terminal determines a second delay Doppler area corresponding to the first signal received in the target time unit, wherein the second delay Doppler area comprises a first delay Doppler area;
and the terminal determines the RSSI corresponding to the second delay Doppler region as a first RSSI corresponding to the target time unit.
Optionally, when determining the first RSSI corresponding to a target time unit, the terminal may first determine a second delay-doppler region corresponding to the first signal received in the target time unit;
optionally, the second delay-doppler region corresponding to the first signal received by the target time unit may completely cover the first delay-doppler region corresponding to the first signal received by the target time unit;
alternatively, the second delay-doppler region refers to a delay-doppler region for measuring signal quality, including a plurality of delays and doppler, and all resource grids of one delay-doppler frame may be regarded as the second delay-doppler region.
Optionally, the second delay-doppler region includes the first signal.
Alternatively, the indication of the second delay-doppler region may be indicated by dedicated signalling.
Optionally, the determining, by the terminal, the RSSI corresponding to the second delay-doppler region includes:
and the terminal determines the RSSI corresponding to the second delay Doppler region in the delay Doppler region.
Optionally, the terminal may determine the RSSI corresponding to the second delay-doppler region in the delay-doppler domain.
Optionally, the determining, by the terminal, the RSSI corresponding to the second delay-doppler zone in the delay-doppler domain includes:
and the terminal determines the linear average value of all signal power in the second delay Doppler region as the RSSI corresponding to the second delay Doppler region.
Optionally, when the terminal determines the RSSI corresponding to the second delay-doppler region in the delay-doppler region, the terminal may first determine a linear average value of all signal powers in the second delay-doppler region, and use the linear average value as the RSSI corresponding to the second delay-doppler region.
Optionally, the determining, by the terminal, a linear average of all signal powers in the second delay-doppler region includes:
the terminal determines a third sum of all signal powers in the second delay-doppler zone;
Dividing the third sum by a third coefficient by the terminal to obtain a linear average value of all signal powers in the second delay Doppler region;
wherein the third coefficient is or is proportional to any one of:
total number of delay-doppler resource grids in the second delay-doppler region;
delay direction resource grid total number;
the total number of Doppler-direction resource grids; or (b)
Delay-doppler-resource-grid total number.
Optionally, when the terminal determines the RSSI corresponding to the second delay-doppler zone in the delay-doppler zone, it needs to determine a linear average value of all signal powers in the second delay-doppler zone, and may first calculate a sum of powers of received signals at all grid points in the second delay-doppler zone (i.e. a third sum of all signal powers in the second delay-doppler zone), divide the sum of powers by a third coefficient, to obtain a linear average value of all signal powers in the second delay-doppler zone, and then use the linear average value as the RSSI corresponding to the second delay-doppler zone, and may be used as the first RSSI.
Optionally, the third coefficient is predefined by a protocol, or indicated by a communication peer, or determined by the terminal itself.
Optionally, in a case where the receiving end is a terminal and the communication counterpart is a network-side device, the third coefficient is indicated by the communication counterpart by one or more of:
MAC CE；
an RRC message;
NAS messages;
managing the orchestration message;
user plane data;
DCI information;
a system information block SIB;
layer 1 signaling of a physical downlink control channel PDCCH;
information of a Physical Downlink Shared Channel (PDSCH);
MSG 2 information of a physical random access channel PRACH;
MSG 4 information of a physical random access channel PRACH; or (b)
MSG B information of physical random access channel PRACH.
Optionally, in a case where the receiving end is a terminal and the communication counterpart is a terminal, the third coefficient is indicated by the communication counterpart by one or more of:
xn interface signaling;
PC5 interface signaling;
information of a physical side link control channel PSCCH;
information of a physical side link shared channel PSSCH;
information of a physical side link broadcast channel PSBCH;
physical through link discovery channel PSDCH information; or (b)
The physical through link feeds back the information of the channel PSFCH.
Alternatively, the third coefficient may be equal to (or proportional to) the total number of delay-doppler resource grids within the first delay-doppler region;
Alternatively, the third coefficient may be equal to (or proportional to) the total number of delay-direction resource grids;
alternatively, the third coefficient may be equal to (or proportional to) the total number of doppler-direction resource grids;
alternatively, the third coefficient may be equal to (or proportional to) the total number of delay-doppler resource grids.
Optionally, the determining, by the terminal, the RSSI corresponding to the second delay-doppler region includes:
and the terminal determines the RSSI corresponding to the second delay Doppler region in a time-frequency domain.
Optionally, the terminal may further determine an RSSI corresponding to the second delay-doppler region in a time-frequency domain.
Optionally, the determining, by the terminal, the RSSI corresponding to the second delay-doppler region in the time-frequency domain includes:
the terminal determining a fourth signal within the second delay-doppler zone from the first signal received by the target time unit;
the terminal converts the fourth signal into a time-frequency domain to obtain a fifth signal;
and the terminal determines a linear average value of the signal power of the fifth signal as the RSSI corresponding to the second delay Doppler region.
Optionally, the terminal may first determine a fourth signal in the second delay-doppler region from the first signal received by the target time unit, and convert the fourth signal to a time-frequency domain to obtain a fifth signal, so as to determine a linear average value of signal power of the fifth signal, and use the linear average value as an RSSI corresponding to the second delay-doppler region, and further use an RSSI corresponding to the second delay-doppler region as the first RSSI.
Optionally, the determining, by the terminal, a linear average of signal powers of the fifth signal includes:
the terminal determines a fourth sum of signal powers of the fifth signal;
the terminal divides the fourth sum by a fourth coefficient to obtain a linear average value of the signal power of the fifth signal;
wherein the fourth coefficient is or is proportional to any one of:
total number of delay-doppler resource grids in the second delay-doppler region;
delay direction resource grid total number;
the total number of Doppler-direction resource grids; or (b)
Delay-doppler-resource-grid total number.
Optionally, when the terminal determines the RSSI corresponding to the second delay-doppler zone in the time-frequency domain, it needs to determine a linear average value of the signal power of the fifth signal, and may first calculate a fourth sum of the signal powers of the fifth signal, then divide the fourth sum by a fourth coefficient to obtain the linear average value of the signal powers of the fifth signal, and use the linear average value as the RSSI corresponding to the second delay-doppler zone, and then use the RSSI corresponding to the second delay-doppler zone as the first RSSI.
Alternatively, in the delay-doppler-domain received signal (first signal), a signal (fourth signal) in the second delay-doppler domain may be selected, converted to the time-frequency domain to obtain a fifth signal, the power sum of the fifth signal is calculated, and the power sum is divided by a coefficient t and is denoted as the first RSSI. The selecting refers to reserving selected signals, and all other signals which are not selected are set to zero. Wherein the coefficient t is the fourth coefficient.
Alternatively, the fourth coefficient may be equal to (or proportional to) the number of delay-direction gratings contained in the second delay-doppler region;
alternatively, the fourth coefficient may be equal to (or proportional to) the number of doppler direction gratings included in the second delay-doppler region, or the fourth coefficient may be equal to (or proportional to) the total number of gratings included in the second delay-doppler region, or the coefficient t may be equal to (or proportional to) the total number of gratings in the delay direction of the delay-doppler region;
alternatively, the fourth coefficient may be equal to (or proportional to) the total number of doppler direction bins of the delay-doppler domain, or the fourth coefficient may be equal to (or proportional to) the total number of bins of the delay-doppler domain.
Alternatively, in the embodiment of the present application, the RSSI of OFDM may be averaged to one OFDM symbol granularity, and includes all subcarriers in the measurement band on one OFDM symbol. Consider a system in which the number of delays M, the number of doppler's is N, and the corresponding time-frequency domain resource grid size is M subcarriers, and the region consisting of N OFDM symbols. By leading out the fourth coefficient, the magnitude of the fourth coefficient is inversely related to M or N, so that the RSSI of the OFDM can be ensured to correspond.
Optionally, the fourth coefficient is predefined by a protocol, or indicated by a communication peer, or determined by the terminal itself.
Optionally, in a case where the receiving end is a terminal and the communication counterpart is a network-side device, the fourth coefficient is indicated by the communication counterpart by one or more of:
MAC CE；
an RRC message;
NAS messages;
managing the orchestration message;
user plane data;
DCI information;
a system information block SIB;
layer 1 signaling of a physical downlink control channel PDCCH;
information of a Physical Downlink Shared Channel (PDSCH);
MSG 2 information of a physical random access channel PRACH;
MSG 4 information of a physical random access channel PRACH; or (b)
MSG B information of physical random access channel PRACH.
Optionally, in a case where the receiving end is a terminal and the communication counterpart is a terminal, the fourth coefficient is indicated by the communication counterpart by one or more of:
xn interface signaling;
PC5 interface signaling;
information of a physical side link control channel PSCCH;
information of a physical side link shared channel PSSCH;
information of a physical side link broadcast channel PSBCH;
physical through link discovery channel PSDCH information; or (b)
The physical through link feeds back the information of the channel PSFCH.
Optionally, the first bearer information includes any one or more of:
A synchronization signal, a reference signal, or a signal for measuring cross-link interference CLI.
Optionally, the first bearer information may be a synchronization signal, a reference signal, or a signal for measuring a cross link interference CLI;
optionally, the first bearer information may be a synchronization signal and PBCH block (Synchronization Signal and PBCH block, SSB);
for example, the first bearer information may be a channel state information reference signal (Channel State Information Reference Signal, CSI-RS), a sounding reference signal (Sounding Reference Signal, SRS), a positioning reference signal (positioning reference signal, PRS), a reference signal or a synchronization signal of a sidelink (sidelink) (e.g., DMRS of PSBCH, DMRS of PSCCH, DMRS of PSSCH), a signal for measuring a cross link interference CLI, SSB, etc.
Optionally, if the first bearer information is CSI RS, the calculated delay-doppler-domain received power RSRP is a delay-doppler-domain CSI RSRP;
optionally, if the first bearer information is SRS, the calculated delay-doppler-domain received power RSRP is the delay-doppler-domain SRS RSRP;
optionally, if the first bearer information is PRS, the calculated delay-doppler-domain received power RSRP is a delay-doppler-domain PRS RSRP;
Optionally, if the first bearer information is DMRS of the PSBCH, the calculated delay-doppler-domain received power RSRP is the delay-doppler-domain PSBCH RSRP;
optionally, if the first bearer information is the DMRS of the PSCCH, the calculated delay-doppler-domain received power RSRP is the delay-doppler domain PSCCH RSRP;
optionally, if the first bearer information is DMRS of the PSSCH, the calculated delay-doppler-domain received power RSRP is the delay-doppler domain PSSCH RSRP;
optionally, if the first bearer information is SSB, the calculated delay-doppler-domain received power RSRP is the delay-doppler-domain SS RSRP.
Optionally, if the first bearer information is CSI RS, the calculated delay-doppler-domain signal strength indicator RSSI is a delay-doppler-domain CSI RSSI;
optionally, if the first bearer information is SRS, the calculated delay-doppler-domain signal strength indicator RSSI is a delay-doppler-domain SRS RSSI;
optionally, if the first bearer information is PRS, the calculated delay-doppler-domain signal strength indicator RSSI is a delay-doppler-domain PRS RSSI;
optionally, if the first bearer information is DMRS, the calculated delay-doppler-domain signal strength indicator RSSI is a delay-doppler-domain PSBCH RSSI;
Optionally, if the first bearer information is DMRS, the calculated delay-doppler-domain signal strength indication RSSI is the delay-doppler domain PSCCH RSSI;
optionally, if the first bearer information is DMRS, the calculated delay-doppler-domain signal strength indicator RSSI is the delay-doppler domain PSSCH RSSI;
optionally, if the first bearer information is SSB, the calculated delay-doppler-domain signal strength indicator RSSI is a delay-doppler-domain SS RSSI;
optionally, if the first bearer information is a CLI measurement signal, the calculated delay-doppler-domain signal strength indication RSSI is a delay-doppler-domain CLI RSSI.
Optionally, if the first delay-doppler region includes a CSI RS (the first bearer information is the CSI RS), the calculated delay-doppler-domain received power RSRP is a delay-doppler-domain CSI RSRP;
optionally, if the first delay-doppler region includes SRS (the first bearer information is the SRS), the calculated delay-doppler-domain received power RSRP is the delay-doppler-domain SRS RSRP;
optionally, if the first delay-doppler region includes PRS (the first bearer information is the PRS), the calculated delay-doppler-domain received power RSRP is a delay-doppler-domain PRS RSRP;
Optionally, if the DMRS of the PSBCH is included in the first delay-doppler zone (the first bearer information is the DMRS of the PSBCH), the calculated delay-doppler-domain received power RSRP is the delay-doppler-domain PSBCH RSRP;
optionally, if the DMRS of the PSCCH is included in the first delay-doppler region (the first bearer information is the DMRS of the PSCCH), the calculated delay-doppler-domain received power RSRP is the delay-doppler domain PSCCH RSRP;
optionally, if the DMRS of the PSSCH is included in the first delay-doppler region (the first bearer information is the DMRS of the PSSCH), the calculated delay-doppler-domain received power RSRP is the delay-doppler domain PSSCH RSRP;
optionally, if the first delay-doppler region includes an SSB (the first bearer information is the SSB), the calculated delay-doppler-domain received power RSRP is the delay-doppler-domain SS RSRP.
Optionally, if the second delay-doppler zone includes a CSI RS (the first bearer information is the CSI RS), the calculated delay-doppler-domain signal strength indicator RSSI is a delay-doppler-domain CSI RSSI;
optionally, if the second delay-doppler zone includes SRS (the first bearer information is SRS), the calculated delay-doppler-domain signal strength indicator RSSI is a delay-doppler-domain SRS RSSI;
Optionally, if the second delay-doppler zone includes PRS (the first bearer information is the PRS), the calculated delay-doppler-domain signal strength indicator RSSI is a delay-doppler-domain PRS RSSI;
optionally, if the second delay-doppler zone includes a DMRS of the PSBCH (the first bearer information is the DMRS), the calculated delay-doppler-domain signal strength indicator RSSI is a delay-doppler-domain PSBCH RSSI;
optionally, if the second delay-doppler zone includes a DMRS of the PSCCH (the first bearer information is the DMRS), the calculated delay-doppler-domain signal strength indicator RSSI is the delay-doppler domain PSCCH RSSI;
optionally, if the DMRS of the PSSCH is included in the second delay-doppler region (the first bearer information is the DMRS), the calculated delay-doppler-domain signal strength indicator RSSI is the delay-doppler domain PSSCH RSSI;
optionally, if the second delay-doppler zone includes an SSB (the first bearer information is the SSB), the calculated delay-doppler-domain signal strength indicator RSSI is a delay-doppler-domain SS RSSI;
optionally, if the CLI-measurement signal is included in the second delay-doppler zone (the first bearer information is the CLI-measurement signal), the calculated delay-doppler-domain signal strength indicator RSSI is a delay-doppler-domain CLI RSSI.
Alternatively, it may be indicated by dedicated signaling which signal the currently measured RSRP is, such as the RSRP of the CSI-RS, the RSRP of the synchronization signal (i.e. SS RSRP), the RSRP of the SRS, PRS RSRP, CLI RSRP, the RSRP of the reference signal of the sidelink (e.g. PSBCH RSRP, PSCCH RSRP, PSSCH RSRP).
Alternatively, cell selection and reselection, power control, etc. may be performed based on the delay-doppler-domain received power RSRP.
Optionally, the method further comprises:
the terminal sends first information to the sending end, wherein the first information comprises at least one of the following items:
quality information of the first signal corresponding to the delay Doppler domain;
a quality level corresponding to the quality information;
a quantization code corresponding to the quality information; or (b)
A magnitude relation between the quality information and the historical quality information.
Optionally, the terminal may feed back the quality information corresponding to the delay-doppler domain obtained in any of the foregoing embodiments to the transmitting end. The receiving power RSRP of the delay-doppler domain corresponding to the first signal, the signal strength indication RSSI of the delay-doppler domain corresponding to the first signal, the receiving quality RSRQ of the delay-doppler domain reference signal corresponding to the first signal, and any one or more of the delay-doppler domain signal and the interference evaluation index corresponding to the first signal are fed back to the transmitting end.
Optionally, the feedback from the terminal to the terminal may be the original information of the above information, or may be the information obtained after conversion based on the above information, such as performing quantization coding, grading, and a size relationship with the information reported previously.
Optionally, the terminal may send the first information through the sending end to implement feedback of quality information corresponding to the delay-doppler domain;
alternatively, the first information may comprise any one or a combination of any of the following:
quality information of the first signal corresponding to the delay Doppler domain; or (b)
A quality level corresponding to the quality information; or (b)
A quantization code corresponding to the quality information; or (b)
A magnitude relation between the quality information and the historical quality information.
Optionally, when the terminal feeds back to the transmitting end, if the receiving end is the terminal and the transmitting end is the network side device, the feedback can be achieved through the following signals or signaling:
layer 1 signaling of physical uplink control channel PUCCH;
MSG 1 information of a physical random access channel PRACH;
MSG 3 information of a physical random access channel PRACH;
MSG A information of a physical random access channel PRACH; or (b)
Information of a physical uplink shared channel PUSCH.
Optionally, when the terminal feeds back to the transmitting end, if the receiving end is a terminal and the transmitting end is another terminal, the feedback can be achieved through the following signals or signaling:
xn interface signaling;
PC5 interface signaling;
information of a physical side link control channel PSCCH;
information of a physical side link shared channel PSSCH;
information of a physical side link broadcast channel PSBCH;
physical through link discovery channel PSDCH information; or (b)
The physical through link feeds back the information of the channel PSFCH.
Optionally, in the case that the sending end is a network side device, the first information is carried on any one or more of the following:
layer 1 signaling of physical uplink control channel PUCCH;
MSG 1 information of a physical random access channel PRACH;
MSG 3 information of a physical random access channel PRACH;
MSG A information of a physical random access channel PRACH; or (b)
Information of a physical uplink shared channel PUSCH.
Optionally, in the case that the transmitting end is a terminal, the first information is carried on any one or more of the following:
xn interface signaling;
PC5 interface signaling;
information of a physical side link control channel PSCCH;
information of a physical side link shared channel PSSCH;
information of a physical side link broadcast channel PSBCH;
Physical through link discovery channel PSDCH information; or (b)
The physical through link feeds back the information of the channel PSFCH.
In the embodiment of the application, the terminal determines the quality information corresponding to the first signal in the delay Doppler domain after receiving the first signal in the delay Doppler domain, so as to determine the acquisition mode of the quality information corresponding to the signal in the delay Doppler domain, thereby facilitating the execution of services such as power control, cell switching and the like and improving the communication quality of the terminal.
In one embodiment, fig. 7 is a schematic diagram of a first delay-doppler region at the time of single port according to the embodiment of the present application, as shown in fig. 7, taking a delay-doppler frame (i.e. a target time unit) composed of M grids in a delay direction and N grids in a doppler direction (one signal on each grid) as an example, when an originating terminal transmits a reference signal pulse or a reference signal sequence or a synchronization signal sequence, the reference signal pulse or the reference signal sequence or the synchronization signal sequence may spread to a certain range of delay-doppler regions on the delay-doppler frame of a receiving terminal due to the over-channel characteristic of the delay-doppler domain signal. The received signal power is calculated in the delay-doppler zone and is denoted as the first RSRP. Where fig. 7 depicts a system with m=18, n=12, the middle slash grid region is defined as the first delay-doppler region (i.e., the rectangular region of delay directions 7 to 12, doppler directions 4 to 9 in fig. 7). By reasonably defining the first delay-doppler region (for example, the first delay-doppler region includes a mapping region and a guard band region of the first bearer information in the delay-doppler region), it is ensured that the reference signal pulse or the reference signal sequence or the synchronization signal sequence sent by the transmitting end will not fall on a grid outside the region after passing through the channel. The first RSRP may represent the RSRP of a port calculated over a delay-doppler frame. Calculating the first RSRP may be calculated by any one of the following means (a) to (d):
Calculation in the delay-doppler domain:
(a) The sum of the power of the Q signals with the largest power in the first delay-Doppler region corresponding to the first signal is calculated, and the sum of the power is divided by a coefficient r to be recorded as a first RSRP. The division by the coefficient r is used to make a linear average. In fig. 7, the rectangular area in the delay directions 7 to 12 and the doppler directions 4 to 9 is a first delay-doppler area, Q signals having the largest power are found in this area, and the sum of the powers of these Q signals is calculated and divided by a coefficient r, which is denoted as a first RSRP.
(b) The sum of the powers of the signals in the first delay-doppler region corresponding to the first signal, which is higher than the first threshold, is calculated, and the sum of the powers is divided by a factor w and is denoted as a first RSRP. The division by the coefficient r is used to make a linear average. In fig. 7, all signals with power higher than the first threshold are found in the rectangular areas of delay directions 7 to 12 and doppler directions 4 to 9, and assuming that the power of the total of C signals is higher than the first threshold, the sum of the power of the C signals is calculated, and the sum of the power is divided by a coefficient w, which is denoted as the first RSRP.
Calculation in the time-frequency domain:
(c) And selecting Q signals with maximum power in a first delay Doppler area corresponding to the first signal from the delay Doppler area received signals. The selecting operation refers to reserving selected signals, and all other signals which are not selected are set to zero. In fig. 7, the rectangular region in the delay directions 7 to 12 and the doppler directions 4 to 9 is a first delay-doppler region in which Q signals (second signals) with the largest power are found. All other signals except the Q signals in the delay Doppler domain are set to zero, and then inverse octyl Fourier transform is carried out on the signals to obtain signals in the time frequency domain, and the signals are recorded as third signals. Notably, the third signal has values over all mxn resource grids in the time-frequency domain. The sum of the power of the third signal over all M x N resource grids in the time-frequency domain is calculated and divided by a factor r, denoted as the first RSRP.
(d) And selecting a signal with power higher than a first threshold in a first delay-Doppler area corresponding to the first signal from the delay-Doppler area received signals. The selecting operation refers to reserving selected signals, and all other signals which are not selected are set to zero. In fig. 7, all signals having powers higher than the first threshold are found in rectangular areas of delay directions 7 to 12 and doppler directions 4 to 9, assuming that the power of a total of C signals (second signals) is higher than the first threshold. All other signals except the C signals in the delay Doppler domain are set to zero, and then inverse octyl Fourier transform is carried out on the signals to obtain signals in the time frequency domain, and the signals are recorded as third signals. Notably, the third signal has values over all mxn resource grids in the time-frequency domain. The sum of the power of the second signal over all M x N resource grids in the time-frequency domain is calculated and divided by a factor w, denoted as the first RSRP.
In one embodiment, taking the case that P ports are distinguished by delay-doppler resources that do not overlap with each other as an example, the second RSRP calculation method may be:
when the P ports are distinguished by the delay-doppler resources that do not overlap with each other, P first delay-doppler regions need to be formulated on the delay-doppler frame of the receiving end, corresponding to the P ports. Figure 8 is a schematic diagram of a first delay-doppler region for two ports provided by an embodiment of the present application; as shown in fig. 8, a system is described in which m=18, n=12, and p=2, the grid region with a slash is the first delay-doppler region corresponding to the 1 st port (i.e., rectangular regions of delay directions 3 to 8 and doppler directions 4 to 9 in fig. 8), and the grid region with a prismatic grid is the first delay-doppler region corresponding to the 2 nd port (i.e., rectangular regions of delay directions 11 to 16 and doppler directions 4 to 9 in fig. 8). Calculating a first RSRP corresponding to each first port; the average of these P first RSRP may then be calculated and denoted as the second RSRP. The mean may be a linear mean or a weighted mean. Or calculates the maximum value of the P first RSRP, denoted as the second RSRP. Or the minimum value of the P first RSRPs is calculated and is recorded as the second RSRP.
In one embodiment, the first RSSI may be calculated by:
the sum of the powers of the received signals at all the bins in the second delay-doppler region is calculated and divided by a factor t (third factor) to be denoted as the first RSSI. The calculated power can be calculated in the delay-doppler domain, or signals in the second delay-doppler domain can be selected and converted into the time-frequency domain to calculate the power again.
The second delay-doppler region may refer to a delay-doppler region for measuring signal quality, including a plurality of delays and doppler, and all resource grids of one delay-doppler frame may be regarded as the second delay-doppler region.
Taking the delay-doppler frame of fig. 7 as an example, all of the m×n=18×12=216 grid areas may be taken as the second delay-doppler area, and the power sum of the received signals at all of the grid points in the second delay-doppler area may be calculated and denoted as the first RSSI. Similarly, for the delay-doppler frame of fig. 8, all of the m×n=18×12=216 grid regions may be regarded as the second delay-doppler region, and the sum of powers of the received signals at all of the grid points in the second delay-doppler region may be calculated and denoted as the first RSSI. In both cases, the first RSSI obtained will be different due to the different number of ports. The second delay-doppler domain may also select a portion of the delay-doppler bins, i.e., the second delay-doppler domain may contain fewer bins than mxn.
In one embodiment, the second RSSI may be calculated by:
similar to the calculation of the third RSRP, the average value of K first RSSIs may be calculated and denoted as the second RSSI. The K first RSSIs may be obtained based on K delay-doppler frames that are consecutive, K delay-doppler frames that occur periodically, or any (intermittent) K delay-doppler frames. The mean may be a mean obtained by linear averaging. The average value obtained by weighted average, that is, the K first RSSI values are given different weights when being averaged. The operation of calculating the second RSSI from the K first RSSIs is also called filtering.
Alternatively, the delay-doppler-domain signal strength indication may be defined as the first RSSI or the second RSSI described above.
Alternatively, the delay-doppler-domain signal strength indication RSSI may be defined as the first RSSI or the second RSSI described above.
In one embodiment, the delay-doppler-domain signal and interference estimation index may be calculated by:
wherein the delay-doppler-domain interference power is obtained by interference measurement. The measurement of RSRP and the measurement of interference power may be performed in the same frame or in different frames.
In the case where the measurement of RSRP and the measurement of interference power are performed in the same frame, the interference measurement also requires a third delay-doppler region, similar to the first delay-doppler region of RSRP, in which the sum of the powers of the interference is calculated and denoted as the delay-doppler-domain interference power. The first delay-doppler region and the third delay-doppler region are non-overlapping. Fig. 9 is one of schematic diagrams of a first signal provided by an embodiment of the present application, and fig. 9 shows a terminal signal for implementing RSRP measurement and interference power measurement in the same frame; as shown in fig. 9, taking a system of m=18 and n=12 as an example, the grid region with a slash is a first delay-doppler region (i.e., rectangular regions of delay directions 3 to 8 and doppler directions 4 to 9 in fig. 9) corresponding to RSRP measurement, and the grid region with a prismatic grid is a third delay-doppler region (i.e., rectangular regions of delay directions 11 to 16 and doppler directions 4 to 9 in fig. 9) corresponding to interference power measurement.
In the case where the RSRP measurement and the interference power measurement are performed in different frames, it is also necessary to calculate the sum of the powers of the interference in the third delay-doppler region, which is denoted as the delay-doppler-domain interference power. Wherein the first delay-doppler region and the third delay-doppler region may or may not overlap. FIG. 10 is a second schematic diagram of a first signal according to an embodiment of the application; FIG. 11 is a third schematic diagram of a first signal according to an embodiment of the application; fig. 10 and 11 show terminal signals when the measurement of RSRP and the measurement of interference power are implemented in different frames, and as shown in fig. 10 and 11, the case where the first delay-doppler region and the third delay-doppler region are completely overlapped is described, and since the two have been distinguished by different frames, the measurement of RSRP and the measurement of interference power do not affect each other even if they are completely overlapped.
In the embodiment of the application, the terminal determines the quality information corresponding to the first signal in the delay Doppler domain after receiving the first signal in the delay Doppler domain, so as to determine the acquisition mode of the quality information corresponding to the signal in the delay Doppler domain, thereby facilitating the execution of services such as power control, cell switching and the like and improving the communication quality of the terminal.
According to the quality information determining method provided by the embodiment of the application, the execution main body can be the quality information determining device. In the embodiment of the present application, a quality information determining apparatus provided in the embodiment of the present application is described by taking a method for performing quality information determination by a quality information determining apparatus as an example.
Fig. 12 is a schematic structural diagram of a quality information determining apparatus according to an embodiment of the present application, and as shown in fig. 12, a quality information determining apparatus 1200 includes: a receiving module 1210 and a determining module 1220; wherein:
the receiving module 1210 is configured to receive a first signal, where the transmission signal corresponding to the first signal is a signal that is sent by mapping the first bearer information in the delay-doppler domain and then converting the mapping first bearer information into a time domain;
the determining module 1220 is configured to determine quality information corresponding to the first signal in the delay-doppler domain.
In the embodiment of the application, the terminal determines the quality information corresponding to the first signal in the delay Doppler domain after receiving the first signal in the delay Doppler domain, so as to determine the acquisition mode of the quality information corresponding to the signal in the delay Doppler domain, thereby facilitating the execution of services such as power control, cell switching and the like and improving the communication quality of the terminal.
Optionally, the determining module 1220 is specifically configured to use any one or more of the following:
determining a delay-doppler-domain received power RSRP corresponding to the first signal;
determining a delay-doppler-domain signal strength indication (RSSI) corresponding to the first signal;
determining a delay-doppler-domain receiving quality RSRQ corresponding to the first signal; or (b)
And determining a delay Doppler domain signal and an interference evaluation index corresponding to the first signal.
Optionally, the determining module 1220 is specifically configured to:
after determining the delay-doppler-domain received power RSRP corresponding to the first signal and determining the delay-doppler-domain signal strength indication RSSI corresponding to the first signal, the terminal determines the delay-doppler-domain received quality RSRQ corresponding to the first signal based on the delay-doppler-domain received power RSRP corresponding to the first signal and the delay-doppler-domain signal strength indication RSSI corresponding to the first signal.
Optionally, the determining module 1220 is specifically configured to:
by the formula: delay-doppler domain reception qualityDetermining a delay-doppler-domain receiving quality RSRQ corresponding to the first signal;
wherein L is any real number.
Optionally, the determining module 1220 is specifically configured to:
Determining a delay-doppler-domain interference power, the delay-doppler-domain interference power being determined based on an interference measurement signal corresponding to the first signal;
after determining the delay-doppler-domain received power RSRP corresponding to the first signal, determining a delay-doppler-domain signal and an interference evaluation index corresponding to the first signal based on the delay-doppler-domain received power RSRP corresponding to the first signal and the delay-doppler-domain interference power.
Optionally, the determining module 1220 is specifically configured to:
by the formula:determining a delay Doppler domain signal and an interference evaluation index corresponding to the first signal;
wherein T is any real number.
Optionally, the determining module 1220 is specifically configured to:
determining a first RSRP corresponding to a target port in a target time unit;
taking the first RSRP as a delay-Doppler domain receiving power RSRP corresponding to the first signal;
wherein the first RSRP is an RSRP of a first signal received by the terminal from a target port within the target time unit.
Optionally, the determining module 1220 is specifically configured to:
determining a first RSRP corresponding to a target port in a target time unit, wherein the first RSRP is the RSRP of a first signal received by the terminal from the target port in the target time unit;
Determining a second RSRP corresponding to the target time unit based on the first RSRP respectively corresponding to the plurality of target ports in the target time unit;
and taking the second RSRP as a delay-Doppler domain receiving power RSRP corresponding to the first signal.
Optionally, the determining module 1220 is specifically configured to:
determining a first RSRP corresponding to a target port in a target time unit, wherein the first RSRP is the RSRP of a first signal received by the terminal from the target port in the target time unit;
determining a second RSRP corresponding to the target time unit based on the first RSRP respectively corresponding to the plurality of target ports in the target time unit;
determining a third RSRP based on the second RSRP corresponding to the target time units respectively;
and taking the third RSRP as a delay-Doppler domain receiving power RSRP corresponding to the first signal.
Optionally, the determining module 1220 is specifically configured to any one of the following:
determining the linear average value of the first RSRP corresponding to each of the plurality of target ports in the target time unit as a second RSRP corresponding to the target time unit; or (b)
Determining weighted average values of the first RSRPs respectively corresponding to a plurality of target ports in the target time unit, and taking the weighted average values as second RSRPs corresponding to the target time unit; or (b)
Determining the largest first RSRP in the first RSRPs respectively corresponding to a plurality of target ports in the target time unit as a second RSRP corresponding to the target time unit; or (b)
And determining the minimum first RSRP in the first RSRPs respectively corresponding to the plurality of target ports in the target time unit as a second RSRP corresponding to the target time unit.
Optionally, the first bearer information corresponding to the sending signals respectively transmitted by the multiple target ports is transmitted through delay-doppler resources that do not overlap with each other.
Optionally, the first bearer information corresponding to the sending signals respectively transmitted by the plurality of target ports is a mutually orthogonal sequence.
Optionally, the determining module 1220 is specifically configured to any one of the following:
determining the linear average value of the second RSRP corresponding to each of the target time units as a third RSRP corresponding to the target time unit; or (b)
Determining weighted average values of the second RSRPs respectively corresponding to the target time units as third RSRPs corresponding to the target time units; or (b)
Determining the largest second RSRP in the second RSRPs respectively corresponding to the target time units as a third RSRP corresponding to the target time unit; or (b)
And determining the smallest second RSRP in the second RSRPs corresponding to the target time units as a third RSRP corresponding to the target time unit.
Optionally, the determining module 1220 is specifically configured to:
determining a first RSRP corresponding to a target port in a target time unit, wherein the first RSRP is the RSRP of a first signal received by the terminal from the target port in the target time unit;
determining a fourth RSRP based on the first RSRP corresponding to the target port in the target time units;
and taking the fourth RSRP as a delay-Doppler domain receiving power RSRP corresponding to the first signal.
Optionally, the determining module 1220 is specifically configured to any one of the following:
determining a linear average value of first RSRPs corresponding to the target port in a plurality of target time units respectively, and taking the linear average value as a fourth RSRP corresponding to the target time unit; or (b)
Determining weighted average values of first RSRPs corresponding to the target port in a plurality of target time units respectively, and taking the weighted average values as fourth RSRPs corresponding to the target time units; or (b)
Determining the largest first RSRP in the first RSRPs respectively corresponding to the target port in a plurality of target time units, and taking the largest first RSRP as a fourth RSRP corresponding to the target time unit; or (b)
And determining the minimum first RSRP in the first RSRPs respectively corresponding to the target port in the target time units as a fourth RSRP corresponding to the target time unit.
Optionally, the plurality of the target time units are continuous, or periodic, or non-periodic and discontinuous.
Optionally, the determining module 1220 is specifically configured to:
determining a first delay Doppler area corresponding to a first signal received from a target port in the target time unit, wherein the first delay Doppler area comprises a mapping area and a guard band area of the first bearing information in the delay Doppler area;
and determining the RSRP corresponding to the first delay-Doppler region as the first RSRP corresponding to the target port in the target time unit.
Optionally, the determining module 1220 is specifically configured to:
and determining the RSRP corresponding to the first delay-Doppler region in the delay-Doppler domain.
Optionally, the determining module 1220 is specifically configured to:
determining a first signal power, wherein the first signal power is the signal power of the first Z signals in the order from the top to the bottom in the signal power of all signals in the first delay Doppler region, or the first signal power is the signal power higher than a first power threshold in the signal power of all signals in the first delay Doppler region;
Determining a linear average value of the first signal power as an RSRP corresponding to the first delay-Doppler area;
z is a positive integer.
Optionally, the determining module 1220 is specifically configured to:
determining a first sum of the first signal powers;
dividing the first sum by a first coefficient to obtain a linear average of the first signal power;
wherein the first coefficient is or is proportional to any one of:
a total number of delay-doppler resource grids within the first delay-doppler region; z;
the number of signals in the first delay-doppler region for which the signal power is above a first power threshold;
delay direction resource grid total number;
the total number of Doppler-direction resource grids; or (b)
Delay-doppler-resource-grid total number.
Optionally, the determining module 1220 is specifically configured to:
and determining the RSRP corresponding to the first delay Doppler region in the time-frequency domain.
Optionally, the determining module 1220 is specifically configured to:
determining a second signal in the first delay-doppler region from the first signals received from the target port in the target time unit, wherein the second signal is a signal of which all signals in the first delay-doppler region are ranked in the top Q number according to the order of signal power from top to bottom, or the second signal is a signal of which the signal power in all signals in the first delay-doppler region is higher than a second power threshold;
Converting the second signal to a time-frequency domain to obtain a third signal;
determining a linear average value of the signal power of the third signal as an RSRP corresponding to the first delay-doppler region;
q is a positive integer.
Optionally, the determining module 1220 is specifically configured to:
determining a second sum of signal powers of the third signal;
dividing the second sum by a second coefficient to obtain a linear average of the signal power of the third signal;
wherein the second coefficient is or is proportional to any one of:
a total number of delay-doppler resource grids within the first delay-doppler region; q is a group;
the number of signals in the first delay-doppler region for which the signal power is above a second power threshold;
delay direction resource grid total number;
the total number of Doppler-direction resource grids; or (b)
Delay-doppler-resource-grid total number.
Optionally, the determining module 1220 is specifically configured to:
determining a first RSSI corresponding to a target time unit, wherein the first RSSI is the RSSI of a first signal received by the terminal in the target time unit;
and taking the first RSSI corresponding to the target time unit as the delay Doppler domain signal strength indication RSSI corresponding to the first signal.
Optionally, the determining module 1220 is specifically configured to:
determining a first RSSI corresponding to a target time unit, wherein the first RSSI is the RSSI of a first signal received by the terminal in the target time unit;
the terminal determines a second RSSI based on the first RSSIs respectively corresponding to the target time units;
and the terminal takes the second RSSI as a delay Doppler domain signal strength indication RSSI corresponding to the first signal.
Optionally, the plurality of the target time units are continuous, or periodic, or non-periodic and discontinuous.
Optionally, the determining module 1220 is specifically configured to:
determining a second delay-doppler zone corresponding to the first signal received in the target time unit, wherein the second delay-doppler zone comprises a first delay-doppler zone;
and determining the RSSI corresponding to the second delay Doppler region as a first RSSI corresponding to the target time unit.
Optionally, the determining module 1220 is specifically configured to:
and determining the RSSI corresponding to the second delay Doppler region in the delay Doppler domain.
Optionally, the determining module 1220 is specifically configured to:
And determining a linear average value of all signal power in the second delay Doppler region as the RSSI corresponding to the second delay Doppler region.
Optionally, the determining module 1220 is specifically configured to:
determining a third sum of all signal powers within the second delay-doppler region;
dividing the third sum by a third coefficient to obtain a linear average of all signal powers in the second delay-doppler region;
wherein the third coefficient is or is proportional to any one of:
total number of delay-doppler resource grids in the second delay-doppler region;
delay direction resource grid total number;
the total number of Doppler-direction resource grids; or (b)
Delay-doppler-resource-grid total number.
Optionally, the determining module 1220 is specifically configured to:
and determining the RSSI corresponding to the second delay Doppler region in a time-frequency domain.
Optionally, the determining module 1220 is specifically configured to:
determining a fourth signal within the second delay-doppler zone from the first signal received from the target time unit;
converting the fourth signal to a time-frequency domain to obtain a fifth signal;
and determining a linear average value of the signal power of the fifth signal as the RSSI corresponding to the second delay Doppler region.
Optionally, the determining module 1220 is specifically configured to:
determining a fourth sum of signal powers of the fifth signal;
dividing the fourth sum by a fourth coefficient to obtain a linear average of the signal power of the fifth signal;
wherein the fourth coefficient is or is proportional to any one of:
total number of delay-doppler resource grids in the second delay-doppler region;
delay direction resource grid total number;
the total number of Doppler-direction resource grids; or (b)
Delay-doppler-resource-grid total number.
Optionally, the first bearer information includes any one or more of:
a synchronization signal, a reference signal, or a signal for measuring cross-link interference CLI.
Optionally, the apparatus further comprises:
the sending module is used for sending first information to the sending end, wherein the first information comprises at least one of the following items:
quality information of the first signal corresponding to the delay Doppler domain;
a quality level corresponding to the quality information;
a quantization code corresponding to the quality information; or (b)
A magnitude relation between the quality information and the historical quality information.
In the embodiment of the application, the terminal determines the quality information corresponding to the first signal in the delay Doppler domain after receiving the first signal in the delay Doppler domain, so as to determine the acquisition mode of the quality information corresponding to the signal in the delay Doppler domain, thereby facilitating the execution of services such as power control, cell switching and the like and improving the communication quality of the terminal.
The quality information determining apparatus in the embodiment of the present application may be an electronic device, for example, an electronic device having an operating system, or may be a component in an electronic device, for example, an integrated circuit or a chip. The electronic device may be a terminal, or may be other devices than a terminal. By way of example, terminals may include, but are not limited to, the types of terminals 11 listed above, other devices may be servers, network attached storage (Network Attached Storage, NAS), etc., and embodiments of the application are not specifically limited.
The quality information determining device provided by the embodiment of the present application can implement each process implemented by the embodiments of the methods of fig. 6 to 11, and achieve the same technical effects, and in order to avoid repetition, a detailed description is omitted here.
Optionally, fig. 13 is a schematic structural diagram of a communication device provided in the embodiment of the present application, and as shown in fig. 13, the embodiment of the present application further provides a communication device 1300, including a processor 1301 and a memory 1302, where a program or an instruction that can run on the processor 1301 is stored in the memory 1302, for example, when the communication device 1300 is a terminal, the program or the instruction is executed by the processor 1301 to implement each step of the above-mentioned quality information determining method embodiment, and the same technical effects can be achieved. When the communication device 1300 is a network side device, the program or the instruction, when executed by the processor 1301, implements the steps of the above-described quality information determining method embodiment, and the same technical effects can be achieved, so that repetition is avoided, and detailed description is omitted here.
The embodiment of the application also provides a terminal, which comprises a processor and a communication interface, wherein the communication interface is used for:
receiving a first signal, wherein a transmitting signal corresponding to the first signal is a signal transmitted by mapping first bearing information in a delay Doppler domain and then converting the first bearing information into a time domain;
the processor is used for:
and determining quality information corresponding to the first signal in the delay Doppler domain. The terminal embodiment corresponds to the terminal method embodiment, and each implementation process and implementation manner of the method embodiment can be applied to the terminal embodiment, and the same technical effect can be achieved. Specifically, fig. 14 is a schematic diagram of a hardware structure of a terminal for implementing an embodiment of the present application.
The terminal 1400 includes, but is not limited to: at least part of the components of the radio frequency unit 1401, the network module 1402, the audio output unit 1403, the input unit 1404, the sensor 1405, the display unit 1406, the user input unit 1407, the interface unit 1408, the memory 1409, the processor 1410, and the like.
Those skilled in the art will appreciate that terminal 1400 may also include a power source (e.g., a battery) for powering the various components, which may be logically connected to processor 1410 by a power management system so as to perform functions such as managing charging, discharging, and power consumption by the power management system. The terminal structure shown in fig. 14 does not constitute a limitation of the terminal, and the terminal may include more or less components than shown, or may combine certain 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 1404 may include a graphics processing unit (Graphics Processing Unit, GPU) 14041 and a microphone 14042, with the graphics processor 14041 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 1406 may include a display panel 14061, and the display panel 14061 may be configured in the form of a liquid crystal display, an organic light emitting diode, or the like. The user input unit 1407 includes at least one of a touch panel 14071 and other input devices 14072. The touch panel 14071 is also referred to as a touch screen. The touch panel 14071 may include two parts, a touch detection device and a touch controller. Other input devices 14072 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 a network side device, the radio frequency unit 1401 may transmit the downlink data to the processor 1410 for processing; in addition, the radio frequency unit 1401 may send uplink data to the network-side device. In general, the radio frequency unit 1401 includes, but is not limited to, an antenna, an amplifier, a transceiver, a coupler, a low noise amplifier, a duplexer, and the like.
Memory 1409 may be used to store software programs or instructions and various data. The memory 1409 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 1409 may include volatile memory or nonvolatile memory, or the memory 1409 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 1409 in embodiments of the application includes, but is not limited to, these and any other suitable types of memory.
Processor 1410 may include one or more processing units; optionally, the processor 1410 integrates an application processor that primarily processes operations involving an operating system, user interface, application programs, etc., 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 1410.
Wherein, the radio frequency unit 1401 is used for:
receiving a first signal, wherein a transmitting signal corresponding to the first signal is a signal transmitted by mapping first bearing information in a delay Doppler domain and then converting the first bearing information into a time domain;
the processor 1410 is configured to:
the determining module 1420 is configured to determine quality information corresponding to the first signal in the delay-doppler domain.
In the embodiment of the application, the quality information corresponding to the first signal in the delay Doppler domain is determined after the first signal in the delay Doppler domain is received, so that the acquisition mode of the quality information corresponding to the signal in the delay Doppler domain is defined, the execution of services such as power control and cell switching is facilitated, and the communication quality of the terminal is improved.
Optionally, the processor 1410 is specifically configured to any one or more of:
Determining a delay-doppler-domain received power RSRP corresponding to the first signal;
determining a delay-doppler-domain signal strength indication (RSSI) corresponding to the first signal;
determining a delay-doppler-domain receiving quality RSRQ corresponding to the first signal; or (b)
And determining a delay Doppler domain signal and an interference evaluation index corresponding to the first signal.
Optionally, the processor 1410 is specifically configured to:
after determining the delay-doppler-domain received power RSRP corresponding to the first signal and determining the delay-doppler-domain signal strength indication RSSI corresponding to the first signal, the terminal determines the delay-doppler-domain received quality RSRQ corresponding to the first signal based on the delay-doppler-domain received power RSRP corresponding to the first signal and the delay-doppler-domain signal strength indication RSSI corresponding to the first signal.
Optionally, the processor 1410 is specifically configured to:
by the formula: delay-doppler domain reception qualityDetermining a delay-doppler-domain receiving quality RSRQ corresponding to the first signal;
wherein L is any real number.
Optionally, the processor 1410 is specifically configured to:
determining a delay-doppler-domain interference power, the delay-doppler-domain interference power being determined based on an interference measurement signal corresponding to the first signal;
After determining the delay-doppler-domain received power RSRP corresponding to the first signal, determining a delay-doppler-domain signal and an interference evaluation index corresponding to the first signal based on the delay-doppler-domain received power RSRP corresponding to the first signal and the delay-doppler-domain interference power.
Optionally, the processor 1410 is specifically configured to:
by the formula:determining a delay Doppler domain signal and an interference evaluation index corresponding to the first signal;
wherein T is any real number.
Optionally, the processor 1410 is specifically configured to:
determining a first RSRP corresponding to a target port in a target time unit;
taking the first RSRP as a delay-Doppler domain receiving power RSRP corresponding to the first signal;
wherein the first RSRP is an RSRP of a first signal received by the terminal from a target port within the target time unit.
Optionally, the processor 1410 is specifically configured to:
determining a first RSRP corresponding to a target port in a target time unit, wherein the first RSRP is the RSRP of a first signal received by the terminal from the target port in the target time unit;
determining a second RSRP corresponding to the target time unit based on the first RSRP respectively corresponding to the plurality of target ports in the target time unit;
And taking the second RSRP as a delay-Doppler domain receiving power RSRP corresponding to the first signal.
Optionally, the processor 1410 is specifically configured to:
determining a first RSRP corresponding to a target port in a target time unit, wherein the first RSRP is the RSRP of a first signal received by the terminal from the target port in the target time unit;
determining a second RSRP corresponding to the target time unit based on the first RSRP respectively corresponding to the plurality of target ports in the target time unit;
determining a third RSRP based on the second RSRP corresponding to the target time units respectively;
and taking the third RSRP as a delay-Doppler domain receiving power RSRP corresponding to the first signal.
Optionally, the processor 1410 is specifically configured to any of the following:
determining the linear average value of the first RSRP corresponding to each of the plurality of target ports in the target time unit as a second RSRP corresponding to the target time unit; or (b)
Determining weighted average values of the first RSRPs respectively corresponding to a plurality of target ports in the target time unit, and taking the weighted average values as second RSRPs corresponding to the target time unit; or (b)
Determining the largest first RSRP in the first RSRPs respectively corresponding to a plurality of target ports in the target time unit as a second RSRP corresponding to the target time unit; or (b)
And determining the minimum first RSRP in the first RSRPs respectively corresponding to the plurality of target ports in the target time unit as a second RSRP corresponding to the target time unit.
Optionally, the first bearer information corresponding to the sending signals respectively transmitted by the multiple target ports is transmitted through delay-doppler resources that do not overlap with each other.
Optionally, the first bearer information corresponding to the sending signals respectively transmitted by the plurality of target ports is a mutually orthogonal sequence.
Optionally, the processor 1410 is specifically configured to any of the following:
determining the linear average value of the second RSRP corresponding to each of the target time units as a third RSRP corresponding to the target time unit; or (b)
Determining weighted average values of the second RSRPs respectively corresponding to the target time units as third RSRPs corresponding to the target time units; or (b)
Determining the largest second RSRP in the second RSRPs respectively corresponding to the target time units as a third RSRP corresponding to the target time unit; or (b)
And determining the smallest second RSRP in the second RSRPs corresponding to the target time units as a third RSRP corresponding to the target time unit.
Optionally, the processor 1410 is specifically configured to:
determining a first RSRP corresponding to a target port in a target time unit, wherein the first RSRP is the RSRP of a first signal received by the terminal from the target port in the target time unit;
determining a fourth RSRP based on the first RSRP corresponding to the target port in the target time units;
and taking the fourth RSRP as a delay-Doppler domain receiving power RSRP corresponding to the first signal.
Optionally, the processor 1410 is specifically configured to any of the following:
determining a linear average value of first RSRPs corresponding to the target port in a plurality of target time units respectively, and taking the linear average value as a fourth RSRP corresponding to the target time unit; or (b)
Determining weighted average values of first RSRPs corresponding to the target port in a plurality of target time units respectively, and taking the weighted average values as fourth RSRPs corresponding to the target time units; or (b)
Determining the largest first RSRP in the first RSRPs respectively corresponding to the target port in a plurality of target time units, and taking the largest first RSRP as a fourth RSRP corresponding to the target time unit; or (b)
And determining the minimum first RSRP in the first RSRPs respectively corresponding to the target port in the target time units as a fourth RSRP corresponding to the target time unit.
Optionally, the plurality of the target time units are continuous, or periodic, or non-periodic and discontinuous.
Optionally, the processor 1410 is specifically configured to:
determining a first delay Doppler area corresponding to a first signal received from a target port in the target time unit, wherein the first delay Doppler area comprises a mapping area and a guard band area of the first bearing information in the delay Doppler area;
and determining the RSRP corresponding to the first delay-Doppler region as the first RSRP corresponding to the target port in the target time unit.
Optionally, the processor 1410 is specifically configured to:
and determining the RSRP corresponding to the first delay-Doppler region in the delay-Doppler domain.
Optionally, the processor 1410 is specifically configured to:
determining a first signal power, wherein the first signal power is the signal power of the first Z signals in the order from the top to the bottom in the signal power of all signals in the first delay Doppler region, or the first signal power is the signal power higher than a first power threshold in the signal power of all signals in the first delay Doppler region;
Determining a linear average value of the first signal power as an RSRP corresponding to the first delay-Doppler area;
z is a positive integer.
Optionally, the processor 1410 is specifically configured to:
determining a first sum of the first signal powers;
dividing the first sum by a first coefficient to obtain a linear average of the first signal power;
wherein the first coefficient is or is proportional to any one of:
a total number of delay-doppler resource grids within the first delay-doppler region; z;
the number of signals in the first delay-doppler region for which the signal power is above a first power threshold;
delay direction resource grid total number;
the total number of Doppler-direction resource grids; or (b)
Delay-doppler-resource-grid total number.
Optionally, the processor 1410 is specifically configured to:
and determining the RSRP corresponding to the first delay Doppler region in the time-frequency domain.
Optionally, the processor 1410 is specifically configured to:
determining a second signal in the first delay-doppler region from the first signals received from the target port in the target time unit, wherein the second signal is a signal of which all signals in the first delay-doppler region are ranked in the top Q number according to the order of signal power from top to bottom, or the second signal is a signal of which the signal power in all signals in the first delay-doppler region is higher than a second power threshold;
Converting the second signal to a time-frequency domain to obtain a third signal;
determining a linear average value of the signal power of the third signal as an RSRP corresponding to the first delay-doppler region;
q is a positive integer.
Optionally, the processor 1410 is specifically configured to:
determining a second sum of signal powers of the third signal;
dividing the second sum by a second coefficient to obtain a linear average of the signal power of the third signal;
wherein the second coefficient is or is proportional to any one of:
a total number of delay-doppler resource grids within the first delay-doppler region; q is a group;
the number of signals in the first delay-doppler region for which the signal power is above a second power threshold;
delay direction resource grid total number;
the total number of Doppler-direction resource grids; or (b)
Delay-doppler-resource-grid total number.
Optionally, the processor 1410 is specifically configured to:
determining a first RSSI corresponding to a target time unit, wherein the first RSSI is the RSSI of a first signal received by the terminal in the target time unit;
and taking the first RSSI corresponding to the target time unit as the delay Doppler domain signal strength indication RSSI corresponding to the first signal.
Optionally, the processor 1410 is specifically configured to:
determining a first RSSI corresponding to a target time unit, wherein the first RSSI is the RSSI of a first signal received by the terminal in the target time unit;
determining a second RSSI based on the first RSSIs respectively corresponding to the target time units;
and taking the second RSSI as a delay-Doppler domain signal strength indication RSSI corresponding to the first signal.
Optionally, the plurality of the target time units are continuous, or periodic, or non-periodic and discontinuous.
Optionally, the processor 1410 is specifically configured to:
determining a second delay-doppler zone corresponding to the first signal received in the target time unit, wherein the second delay-doppler zone comprises a first delay-doppler zone;
and determining the RSSI corresponding to the second delay Doppler region as a first RSSI corresponding to the target time unit.
Optionally, the processor 1410 is specifically configured to:
and determining the RSSI corresponding to the second delay Doppler region in the delay Doppler domain.
Optionally, the processor 1410 is specifically configured to:
and determining a linear average value of all signal power in the second delay Doppler region as the RSSI corresponding to the second delay Doppler region.
Optionally, the processor 1410 is specifically configured to:
determining a third sum of all signal powers within the second delay-doppler region;
dividing the third sum by a third coefficient to obtain a linear average of all signal powers in the second delay-doppler region;
wherein the third coefficient is or is proportional to any one of:
total number of delay-doppler resource grids in the second delay-doppler region;
delay direction resource grid total number;
the total number of Doppler-direction resource grids; or (b)
Delay-doppler-resource-grid total number.
Optionally, the processor 1410 is specifically configured to:
and determining the RSSI corresponding to the second delay Doppler region in a time-frequency domain.
Optionally, the processor 1410 is specifically configured to:
determining a fourth signal within the second delay-doppler zone from the first signal received from the target time unit;
converting the fourth signal to a time-frequency domain to obtain a fifth signal;
and determining a linear average value of the signal power of the fifth signal as the RSSI corresponding to the second delay Doppler region.
Optionally, the processor 1410 is specifically configured to:
determining a fourth sum of signal powers of the fifth signal;
Dividing the fourth sum by a fourth coefficient to obtain a linear average of the signal power of the fifth signal;
wherein the fourth coefficient is or is proportional to any one of:
total number of delay-doppler resource grids in the second delay-doppler region;
delay direction resource grid total number;
the total number of Doppler-direction resource grids; or (b)
Delay-doppler-resource-grid total number.
Optionally, the first bearer information includes any one or more of:
a synchronization signal, a reference signal, or a signal for measuring cross-link interference CLI.
Optionally, the processor 1410 is specifically configured to:
transmitting first information to the transmitting end, wherein the first information comprises at least one of the following:
quality information of the first signal corresponding to the delay Doppler domain;
a quality level corresponding to the quality information;
a quantization code corresponding to the quality information; or (b)
A magnitude relation between the quality information and the historical quality information.
In the embodiment of the application, the terminal determines the quality information corresponding to the first signal in the delay Doppler domain after receiving the first signal in the delay Doppler domain, so as to determine the acquisition mode of the quality information corresponding to the signal in the delay Doppler domain, thereby facilitating the execution of services such as power control, cell switching and the like and improving the communication quality of the terminal.
The embodiment of the application also provides a readable storage medium, on which a program or an instruction is stored, which when executed by a processor, implements each process of the above-mentioned quality information determining method embodiment, and can achieve the same technical effects, and in order to avoid repetition, the description is omitted here.
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, which comprises a processor and a communication interface, wherein the communication interface is coupled with the processor, and the processor is used for running programs or instructions to realize the processes of the embodiment of the quality information determining method, and the same technical effects can be achieved, so that repetition is avoided, and the description is omitted here.
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 the respective processes of the above-mentioned quality information determining method embodiment, and achieve the same technical effects, and are not repeated herein.
The embodiment of the application also provides a quality information determining system, which comprises: a terminal, the terminal may be configured to perform the steps of the quality information determining method as described above, and the network side device may be configured to perform the steps of the quality information determining method as described above.
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 (38)
1. A quality information determining method, comprising:
the terminal receives a first signal, wherein a transmitting signal corresponding to the first signal is a signal transmitted by mapping first bearing information in a delay Doppler domain and then converting the first bearing information into a time domain;
and the terminal determines quality information corresponding to the first signal in the delay Doppler domain.
2. The quality information determining method according to claim 1, wherein the terminal determines quality information corresponding to the first signal in the delay-doppler domain, including any one or more of:
the terminal determines a delay-doppler-domain received power (RSRP) corresponding to the first signal;
the terminal determines a delay-Doppler domain signal strength indication RSSI corresponding to the first signal;
the terminal determines the received quality RSRQ of the delay Doppler domain corresponding to the first signal; or (b)
And the terminal determines a delay Doppler domain signal and an interference evaluation index corresponding to the first signal.
3. The quality information determining method according to claim 2, wherein the determining, by the terminal, the delay-doppler-domain reception quality RSRQ corresponding to the first signal includes:
after the terminal determines the delay-doppler-domain received power RSRP corresponding to the first signal and the terminal determines the delay-doppler-domain signal strength indication RSSI corresponding to the first signal, the terminal determines the delay-doppler-domain received quality RSRQ corresponding to the first signal based on the delay-doppler-domain received power RSRP corresponding to the first signal and the delay-doppler-domain signal strength indication RSSI corresponding to the first signal.
4. The quality information determining method according to claim 3, wherein the determining, by the terminal, the delay-doppler-domain reception quality RSRQ corresponding to the first signal based on the delay-doppler-domain reception power RSRP corresponding to the first signal and the delay-doppler-domain signal strength indication RSSI corresponding to the first signal, includes:
the terminal passes the formula: delay-doppler domain reception qualityDetermining a delay-doppler-domain receiving quality RSRQ corresponding to the first signal;
wherein L is any real number.
5. The quality information determining method according to claim 2, wherein the determining, by the terminal, the delay-doppler-domain signal and the interference evaluation index corresponding to the first signal includes:
the terminal determines delay Doppler domain interference power, wherein the delay Doppler domain interference power is determined based on an interference measurement signal corresponding to the first signal;
after the terminal determines the delay-doppler-domain received power RSRP corresponding to the first signal, the terminal determines a delay-doppler-domain signal and an interference evaluation index corresponding to the first signal based on the delay-doppler-domain received power RSRP corresponding to the first signal and the delay-doppler-domain interference power.
6. The quality information determining method according to claim 5, wherein the determining, by the terminal, the delay-doppler-domain signal and the interference evaluation index corresponding to the first signal based on the delay-doppler-domain received power RSRP and the delay-doppler-domain interference power corresponding to the first signal includes:
the terminal passes the formula:determining a delay Doppler domain signal and an interference evaluation index corresponding to the first signal;
wherein T is any real number.
7. The quality information determining method according to any one of claims 2-6, wherein the determining, by the terminal, the delay-doppler-domain received power RSRP corresponding to the first signal includes:
the terminal determines a first RSRP corresponding to a target port in a target time unit;
the terminal takes the first RSRP as delay-Doppler domain receiving power RSRP corresponding to the first signal;
wherein the first RSRP is an RSRP of a first signal received by the terminal from a target port within the target time unit.
8. The quality information determining method according to any one of claims 2-6, wherein the determining, by the terminal, the delay-doppler-domain received power RSRP corresponding to the first signal includes:
The terminal determines a first RSRP corresponding to a target port in a target time unit, wherein the first RSRP is the RSRP of a first signal from the target port received by the terminal in the target time unit;
the terminal determines a second RSRP corresponding to the target time unit based on the first RSRP corresponding to the target ports in the target time unit;
and the terminal takes the second RSRP as delay-Doppler domain receiving power RSRP corresponding to the first signal.
9. The quality information determining method according to any one of claims 2-6, wherein the determining, by the terminal, the delay-doppler-domain received power RSRP corresponding to the first signal includes:
the terminal determines a first RSRP corresponding to a target port in a target time unit, wherein the first RSRP is the RSRP of a first signal from the target port received by the terminal in the target time unit;
the terminal determines a second RSRP corresponding to the target time unit based on the first RSRP corresponding to the target ports in the target time unit;
the terminal determines a third RSRP based on the second RSRP corresponding to the target time units respectively;
And the terminal takes the third RSRP as delay-Doppler domain receiving power RSRP corresponding to the first signal.
10. The quality information determining method according to claim 8 or 9, wherein the terminal determines a second RSRP corresponding to the target time unit based on the first RSRP corresponding to each of the plurality of target ports in the target time unit, including any one of:
the terminal determines the linear average value of the first RSRP corresponding to each of the plurality of target ports in the target time unit, and the linear average value is used as a second RSRP corresponding to the target time unit; or (b)
The terminal determines weighted average values of the first RSRPs corresponding to the target ports in the target time unit respectively, and the weighted average values are used as second RSRPs corresponding to the target time unit; or (b)
The terminal determines the largest first RSRP in the first RSRPs respectively corresponding to a plurality of target ports in the target time unit as the second RSRP corresponding to the target time unit; or (b)
And the terminal determines the minimum first RSRP in the first RSRPs respectively corresponding to the plurality of target ports in the target time unit as the second RSRP corresponding to the target time unit.
11. The quality information determining method according to any one of claims 8 to 10, wherein the first bearer information corresponding to the transmission signals respectively transmitted by the plurality of target ports is transmitted through delay-doppler resources that do not overlap with each other.
12. The quality information determining method according to any one of claims 8 to 10, wherein the first bearer information corresponding to the transmission signals respectively transmitted by the plurality of the target ports is a mutually orthogonal sequence.
13. The quality information determining method according to claim 9, wherein the terminal determines a third RSRP based on the second RSRP to which the plurality of target time units respectively correspond, comprising any one of:
the terminal determines the linear average value of the second RSRP corresponding to each of the plurality of target time units as a third RSRP corresponding to the target time unit; or (b)
The terminal determines weighted average values of the second RSRPs corresponding to the target time units respectively and takes the weighted average values as third RSRPs corresponding to the target time units; or (b)
The terminal determines the largest second RSRP in the second RSRPs respectively corresponding to the target time units as a third RSRP corresponding to the target time unit; or (b)
And the terminal determines the minimum second RSRP in the second RSRPs corresponding to the target time units respectively, and takes the minimum second RSRP as a third RSRP corresponding to the target time unit.
14. The quality information determining method according to any one of claims 2-6, wherein the determining, by the terminal, the delay-doppler-domain received power RSRP corresponding to the first signal includes:
the terminal determines a first RSRP corresponding to a target port in a target time unit, wherein the first RSRP is the RSRP of a first signal from the target port received by the terminal in the target time unit;
the terminal determines a fourth RSRP based on the first RSRP corresponding to the target port in the target time units;
and the terminal takes the fourth RSRP as delay-Doppler domain receiving power RSRP corresponding to the first signal.
15. The quality information determining method according to claim 14, wherein the terminal determines a fourth RSRP based on the first RSRP of the one target port respectively corresponding to the plurality of target time units, comprising any one of:
the terminal determines the linear average value of the first RSRP corresponding to the target port in the plurality of target time units as a fourth RSRP corresponding to the target time unit; or (b)
The terminal determines weighted average values of first RSRPs corresponding to the target port in a plurality of target time units respectively, and the weighted average values are used as fourth RSRPs corresponding to the target time units; or (b)
The terminal determines the largest first RSRP in the first RSRPs corresponding to the target port in a plurality of target time units respectively, and the largest first RSRP is used as a fourth RSRP corresponding to the target time unit; or (b)
And the terminal determines the minimum first RSRP in the first RSRPs respectively corresponding to the target port in a plurality of target time units, and the minimum first RSRP is used as a fourth RSRP corresponding to the target time unit.
16. The quality information determination method according to any one of claims 9 or 13 to 15, wherein the plurality of the target time units are continuous, or periodic, or non-periodic and discontinuous.
17. The quality information determining method according to any one of claims 7-16, wherein the determining, by the terminal, a first RSRP corresponding to a target port in a target time unit includes:
the terminal determines a first delay Doppler area corresponding to a first signal received from a target port in the target time unit, wherein the first delay Doppler area comprises a mapping area and a guard band area of the first bearing information in the delay Doppler area;
And the terminal determines the RSRP corresponding to the first delay Doppler area and is used as the first RSRP corresponding to the target port in the target time unit.
18. The quality information determining method of claim 17, wherein the determining, by the terminal, the RSRP corresponding to the first delay-doppler region comprises:
and the terminal determines the RSRP corresponding to the first delay Doppler region in the delay Doppler domain.
19. The quality information determining method according to claim 18, wherein the determining, by the terminal, the RSRP corresponding to the first delay-doppler region in the delay-doppler domain includes:
the terminal determines first signal power, wherein the first signal power is signal power of Z signals which are ranked in the front from big to small in signal power of all signals in the first delay Doppler region, or the first signal power is signal power which is higher than a first power threshold in signal power of all signals in the first delay Doppler region;
the terminal determines a linear average value of the first signal power as an RSRP corresponding to the first delay Doppler area;
z is a positive integer.
20. The quality information determining method of claim 19, wherein the terminal determining a linear average of the first signal power comprises:
the terminal determining a first sum of the first signal powers;
the terminal divides the first sum by a first coefficient to obtain a linear average value of the first signal power;
wherein the first coefficient is or is proportional to any one of:
a total number of delay-doppler resource grids within the first delay-doppler region;
Z；
the number of signals in the first delay-doppler region for which the signal power is above a first power threshold;
delay direction resource grid total number;
the total number of Doppler-direction resource grids; or (b)
Delay-doppler-resource-grid total number.
21. The quality information determining method according to claim 17, wherein the terminal determining the RSRP corresponding to the first delay-doppler region includes:
and the terminal determines the RSRP corresponding to the first delay Doppler region in a time-frequency domain.
22. The quality information determining method according to claim 21, wherein the terminal determining the RSRP corresponding to the first delay-doppler region in the time-frequency domain includes:
The terminal determines a second signal in the first delay Doppler region from first signals received from a target port in the target time unit, wherein the second signal is a signal of which all signals in the first delay Doppler region are ranked in the first Q according to the sequence of signal power from big to small, or the second signal is a signal of which the signal power in all signals in the first delay Doppler region is higher than a second power threshold;
the terminal converts the second signal to a time-frequency domain to obtain a third signal;
the terminal determines a linear average value of the signal power of the third signal as an RSRP corresponding to the first delay-Doppler area;
q is a positive integer.
23. The quality information determining method of claim 22, wherein the terminal determining a linear average of the signal power of the third signal comprises:
the terminal determining a second sum of signal powers of the third signal;
the terminal divides the second sum by a second coefficient to obtain a linear average value of the signal power of the third signal;
wherein the second coefficient is or is proportional to any one of:
A total number of delay-doppler resource grids within the first delay-doppler region;
Q；
the number of signals in the first delay-doppler region for which the signal power is above a second power threshold;
delay direction resource grid total number;
the total number of Doppler-direction resource grids; or (b)
Delay-doppler-resource-grid total number.
24. The quality information determining method according to any one of claims 2-23, wherein the determining, by the terminal, a delay-doppler-domain signal strength indication, RSSI, corresponding to the first signal, comprises:
the terminal determines a first RSSI corresponding to a target time unit, wherein the first RSSI is the RSSI of a first signal received by the terminal in the target time unit;
and the terminal takes the first RSSI corresponding to the target time unit as the delay Doppler domain signal strength indication RSSI corresponding to the first signal.
25. The quality information determining method according to any one of claims 2-23, wherein the determining, by the terminal, a delay-doppler-domain signal strength indication, RSSI, corresponding to the first signal, comprises:
the terminal determines a first RSSI corresponding to a target time unit, wherein the first RSSI is the RSSI of a first signal received by the terminal in the target time unit;
The terminal determines a second RSSI based on the first RSSIs respectively corresponding to the target time units;
and the terminal takes the second RSSI as a delay Doppler domain signal strength indication RSSI corresponding to the first signal.
26. The quality information determining method of claim 25, wherein the plurality of the target time units are continuous, or periodic, or non-periodic and discontinuous.
27. The quality information determining method according to any one of claims 22-26, wherein the determining, by the terminal, a first RSSI corresponding to a target time unit includes:
the terminal determines a second delay Doppler area corresponding to the first signal received in the target time unit, wherein the second delay Doppler area comprises a first delay Doppler area;
and the terminal determines the RSSI corresponding to the second delay Doppler region as a first RSSI corresponding to the target time unit.
28. The quality information determining method of claim 27, wherein the determining, by the terminal, the RSSI corresponding to the second delay-doppler zone comprises:
and the terminal determines the RSSI corresponding to the second delay Doppler region in the delay Doppler region.
29. The quality information determining method according to claim 28, wherein the determining, by the terminal, the RSSI corresponding to the second delay-doppler zone in the delay-doppler domain includes:
and the terminal determines the linear average value of all signal power in the second delay Doppler region as the RSSI corresponding to the second delay Doppler region.
30. The quality information determination method of claim 29 wherein the terminal determining a linear average of all signal power in the second delay-doppler region comprises:
the terminal determines a third sum of all signal powers in the second delay-doppler zone;
dividing the third sum by a third coefficient by the terminal to obtain a linear average value of all signal powers in the second delay Doppler region;
wherein the third coefficient is or is proportional to any one of:
total number of delay-doppler resource grids in the second delay-doppler region;
delay direction resource grid total number;
the total number of Doppler-direction resource grids; or (b)
Delay-doppler-resource-grid total number.
31. The quality information determining method of claim 27, wherein the determining, by the terminal, the RSSI corresponding to the second delay-doppler zone comprises:
And the terminal determines the RSSI corresponding to the second delay Doppler region in a time-frequency domain.
32. The quality information determining method according to claim 31, wherein the determining, by the terminal, the RSSI corresponding to the second delay-doppler zone in the time-frequency domain includes:
the terminal determining a fourth signal within the second delay-doppler zone from the first signal received by the target time unit;
the terminal converts the fourth signal into a time-frequency domain to obtain a fifth signal;
and the terminal determines a linear average value of the signal power of the fifth signal as the RSSI corresponding to the second delay Doppler region.
33. The quality information determining method of claim 32, wherein the terminal determining a linear average of the signal power of the fifth signal comprises:
the terminal determines a fourth sum of signal powers of the fifth signal;
the terminal divides the fourth sum by a fourth coefficient to obtain a linear average value of the signal power of the fifth signal;
wherein the fourth coefficient is or is proportional to any one of:
total number of delay-doppler resource grids in the second delay-doppler region;
Delay direction resource grid total number;
the total number of Doppler-direction resource grids; or (b)
Delay-doppler-resource-grid total number.
34. The quality information determination method according to any one of claims 1 to 33, wherein the first bearer information includes any one or more of:
a synchronization signal, a reference signal, or a signal for measuring cross-link interference CLI.
35. The quality information determination method according to any one of claims 1 to 34, characterized in that the method further comprises:
the terminal sends first information to the sending end, wherein the first information comprises at least one of the following items:
quality information of the first signal corresponding to the delay Doppler domain;
a quality level corresponding to the quality information;
a quantization code corresponding to the quality information; or (b)
A magnitude relation between the quality information and the historical quality information.
36. A quality information determining apparatus, comprising:
the receiving module is used for receiving a first signal, and the transmitting signal corresponding to the first signal is a signal which is transmitted by converting the first bearing information into a time domain after being mapped in a delay Doppler domain;
and the determining module is used for determining the quality information corresponding to the first signal in the delay Doppler domain.
37. 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 quality information determination method of any one of claims 1 to 35.
38. A readable storage medium, characterized in that the readable storage medium has stored thereon a program or instructions which, when executed by a processor, implement the steps of the quality information determining method according to any of claims 1 to 35.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210239688.3A CN116782261A (en) | 2022-03-11 | 2022-03-11 | Quality information determining method, device, terminal and storage medium |
| PCT/CN2023/080692 WO2023169544A1 (en) | 2022-03-11 | 2023-03-10 | Method and apparatus for determining quality information, and terminal and storage medium |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN202210239688.3A CN116782261A (en) | 2022-03-11 | 2022-03-11 | Quality information determining method, device, terminal and storage medium |
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| CN116782261A true CN116782261A (en) | 2023-09-19 |
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| CN202210239688.3A Pending CN116782261A (en) | 2022-03-11 | 2022-03-11 | Quality information determining method, device, terminal and storage medium |
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| WO (1) | WO2023169544A1 (en) |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN107819709B (en) * | 2017-10-26 | 2020-07-21 | 成都信息工程大学 | Method and device for detecting moving target |
| US10651912B2 (en) * | 2018-02-07 | 2020-05-12 | At&T Intellectual Property I, L.P. | Reciprocity based channel state information acquisition for frequency division duplex system |
| CN112003808B (en) * | 2019-05-27 | 2021-12-28 | 成都华为技术有限公司 | Signal processing method and device |
| CN111786763B (en) * | 2020-06-23 | 2023-06-30 | Oppo广东移动通信有限公司 | Signal transmission method and device, transmitting end, receiving end and storage medium |
| CN114158090A (en) * | 2020-09-04 | 2022-03-08 | 维沃移动通信有限公司 | Data sending method, data receiving and processing method and related equipment |
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