CN113439421B

CN113439421B - Combined channel estimation method and device

Info

Publication number: CN113439421B
Application number: CN202180000758.3A
Authority: CN
Inventors: 李媛媛
Original assignee: Beijing Xiaomi Mobile Software Co Ltd
Current assignee: Beijing Xiaomi Mobile Software Co Ltd
Priority date: 2021-03-22
Filing date: 2021-03-22
Publication date: 2023-05-23
Anticipated expiration: 2041-03-22
Also published as: CN113439421A; WO2022198412A1

Abstract

The method and the device for estimating the joint channel provided by the application, wherein the method applied to the terminal equipment comprises the following steps: acquiring the number of windows of the joint channel estimation window; and transmitting by adopting the same frequency resource and precoding mode in each joint channel estimation window. In the method, the window of the joint channel estimation window is used for realizing joint channel estimation for a plurality of wireless channels, so that the efficiency of channel estimation is improved, and further, the same frequency resource and precoding mode are adopted for signal transmission, so that the accuracy of joint channel estimation is ensured, the reliability of transmission is effectively improved, and further, the covered parameter information is accurately acquired.

Description

Combined channel estimation method and device

Technical Field

The present disclosure relates to the field of communications technologies, and in particular, to a joint channel estimation method and apparatus thereof.

Background

The coverage is one of key factors to be considered when an operator performs network commercial operation, and related parameters of the network coverage can be obtained through channel estimation, so that information such as the range, quality and the like of the network coverage is determined.

The wireless channel has great influence on the performance of the wireless communication system, the transmission of the high-frequency signal can lead the wireless channel to receive higher path loss, and in the related art, the parameter information of the wireless channel can be acquired through channel estimation, so that a receiving end can demodulate a transmitted signal, and how to efficiently perform the channel estimation, and further, the acquisition of the parameter information of the accurate wireless channel becomes a problem to be solved.

Disclosure of Invention

The embodiment of the application provides a joint channel estimation method and a device thereof, which can be used for solving the problem of improvement of channel estimation accuracy in the related technology.

In a first aspect, an embodiment of the present application proposes a joint channel estimation method, applied to a terminal device, where the method includes: acquiring the number of windows of the joint channel estimation window; and transmitting by adopting the same frequency resource and precoding mode in each joint channel estimation window.

According to the joint channel estimation method, after the terminal equipment obtains the number of windows of the joint channel estimation windows, the same frequency resource and precoding mode are adopted for transmission in each joint channel estimation window. In the method, the window of the joint channel estimation window is used for realizing joint channel estimation for a plurality of wireless channels, so that the efficiency of channel estimation is improved, and further, the same low-frequency resource and precoding mode are adopted for signal transmission, so that the accuracy of joint channel estimation is ensured, the reliability of transmission is effectively improved, and further, accurate coverage parameter information is acquired.

The joint channel estimation method provided in the first aspect of the present application may further have the following technical features:

In one implementation, the joint channel estimation method further includes: receiving configuration signaling from the network device, the configuration signaling including at least one of: maximum number of transmissions of joint channel estimation; and a number of one or more candidate windows for the joint channel estimation window.

In one implementation, the joint channel estimation method further includes: control signaling is received from the network device, the control signaling being used to activate one of the candidate window numbers as the window number of the joint channel estimation window.

In one implementation, the joint channel estimation method further includes: the transmission occupies the same starting position on the frequency resource block.

In one implementation, the joint channel estimation method further includes: in response to the hopping mechanism being activated and configured with a frequency offset, transmissions are performed within each of the joint channel estimation windows after hopping by the frequency offset.

In one implementation, the joint channel estimation method further includes: determining that the odd-numbered joint channel estimation window and the even-numbered joint channel estimation window each correspond to one of the two frequency offsets in response to the frequency hopping mechanism being activated and configured with the two frequency offsets; and frequency hopping is carried out in each joint channel estimation window according to the frequency offset corresponding to each joint channel estimation window.

In a second aspect, an embodiment of the present application further proposes a joint channel estimation method, applied to a network device, where the method includes: transmitting the number of windows of the joint channel estimation window to the terminal equipment; receiving the transmission of the terminal equipment in each joint channel estimation window by adopting the same frequency resource and precoding mode; joint channel estimation is performed based on the performed transmissions.

The joint channel estimation method provided in the second aspect of the present application may further have the following technical features:

in one implementation, the joint channel estimation method further includes: the terminal device receives configuration signaling from the terminal device, wherein the configuration signaling comprises at least one of the following components: maximum number of transmissions of joint channel estimation; and a number of one or more candidate windows for the joint channel estimation window.

In one implementation, the joint channel estimation method further includes: and sending control signaling to the terminal equipment, wherein the control signaling is used for activating one of the candidate window numbers.

In one implementation, the joint channel estimation method further includes: and receiving the transmission of the terminal equipment at the same starting position of the frequency resource block corresponding to each joint channel estimation window.

In one implementation, the joint channel estimation method further includes: activating an activated frequency hopping mechanism of the terminal equipment, and configuring a frequency offset for the terminal equipment; and receiving the transmission carried out by the terminal equipment after frequency hopping according to the frequency offset in each joint channel estimation window.

In one implementation, the joint channel estimation method further includes: activating an activated frequency hopping mechanism of the terminal equipment, and configuring two frequency offset values for the terminal equipment; and receiving the transmission of the terminal equipment after frequency hopping according to one of the two frequency offsets in the odd-numbered joint channel estimation window, and the transmission after frequency hopping according to the other of the two frequency offsets in the even-numbered joint channel estimation window.

In a third aspect, an embodiment of the present application proposes a joint channel estimation device, where the joint channel estimation device has a function of implementing part or all of the functions of the terminal device in the method described in the first aspect, for example, the function of the joint channel estimation device may be provided with a function in part or all of the embodiments of the present application, or may be provided with a function of implementing any one of the embodiments of the present application separately. The functions may be implemented by hardware, or may be implemented by hardware executing corresponding software. The hardware or software includes one or more units or modules corresponding to the functions described above.

In one implementation, the communication device may include a transceiver module and a processing module in a structure configured to support the communication device to perform the corresponding functions of the method. The transceiver module is used for supporting communication between the communication device and other equipment. The communication device may further comprise a memory module for coupling with the transceiver module and the processing module, which holds the necessary computer programs and data of the communication device.

As an example, the processing module may be a processor, the transceiver module may be a transceiver or a communication interface, and the storage module may be a memory.

In a fourth aspect, an embodiment of the present application proposes a joint channel estimation apparatus, where the apparatus performs some or all of the functions of the network device in the method described in the second aspect, for example, the function of the joint channel estimation apparatus may perform some or all of the functions in the embodiments of the present application, or may perform the functions of any of the embodiments of the present application separately. The functions may be implemented by hardware, or may be implemented by hardware executing corresponding software. The hardware or software includes one or more units or modules corresponding to the functions described above.

In one implementation, a structure of the joint channel estimation device may include a transceiver module and a processing module, where the processing module is configured to support the communication device to perform the corresponding functions in the method. The transceiver module is used for supporting communication between the communication device and other equipment. The communication device may further comprise a memory module for coupling with the transceiver module and the processing module, which holds the necessary computer programs and data of the communication device.

In a fifth aspect, an embodiment of the present application proposes a communication device comprising a processor, which when calling a computer program in a memory, performs the method according to the first aspect.

In a sixth aspect, embodiments of the present application provide a communication device, where the communication device includes a processor, and when the processor invokes a computer program in a memory, the method according to the second aspect is performed.

In a seventh aspect, an embodiment of the present application proposes a communication device, the device including a processor and a memory, the memory storing a computer program, the processor executing the computer program stored in the memory, to cause the device to perform the method according to the first aspect.

In an eighth aspect, embodiments of the present application provide a communications apparatus, the apparatus including a processor and a memory, the memory storing a computer program, the processor executing the computer program stored in the memory to cause the apparatus to perform the method of the second aspect.

In a ninth aspect, an embodiment of the present application proposes a communication device, including: a processor and interface circuit; the interface circuit is used for receiving code instructions and transmitting the code instructions to the processor; the processor is configured to execute the code instructions to perform the method according to the first aspect.

In a tenth aspect, the present application proposes a communication device comprising: a processor and interface circuit; the interface circuit is used for receiving code instructions and transmitting the code instructions to the processor; the processor is configured to execute the code instructions to perform the method according to the second aspect.

In an eleventh aspect, an embodiment of the present application proposes a communication system, where the system includes a communication device according to the third aspect and a communication device according to the fourth aspect, or where the system includes a communication device according to the fifth aspect and a communication device according to the sixth aspect, or where the system includes a communication device according to the seventh aspect and a communication device according to the eighth aspect, or where the system includes a communication device according to the ninth aspect and a communication device according to the tenth aspect.

In a twelfth aspect, embodiments of the present application provide a computer readable storage medium storing instructions that, when executed, cause the method of the first aspect to be implemented.

In a thirteenth aspect, embodiments of the present application provide a computer-readable storage medium storing instructions that, when executed, cause the method of the second aspect to be implemented.

In a fourteenth aspect, the present application also proposes a computer program product comprising a computer program which, when run on a computer, causes the computer to perform the method of the first aspect described above.

In a fifteenth aspect, the present application also proposes a computer program product comprising a computer program which, when run on a computer, causes the computer to perform the method of the second aspect described above.

In a sixteenth aspect, the present application proposes a chip system comprising at least one processor and an interface for supporting a terminal device to implement the functionality referred to in the first aspect, e.g. to determine or process at least one of data and information referred to in the above-mentioned method. In one possible design, the chip system further includes a memory for holding computer programs and data necessary for the terminal device. The chip system can be composed of chips, and can also comprise chips and other discrete devices.

In a seventeenth aspect, the present application proposes a chip system comprising at least one processor and an interface for supporting a network device to implement the functionality involved in the second aspect, e.g. to determine or process at least one of data and information involved in the above-mentioned method. In one possible design, the chip system further includes a memory to hold computer programs and data necessary for the network device. The chip system can be composed of chips, and can also comprise chips and other discrete devices.

In an eighteenth aspect, the present application proposes a computer program which, when run on a computer, causes the computer to perform the method of the first aspect described above.

In a nineteenth aspect, the present application proposes a computer program which, when run on a computer, causes the computer to perform the method of the second aspect described above.

Drawings

In order to more clearly describe the technical solutions in the embodiments or the background of the present application, the following description will describe the drawings that are required to be used in the embodiments or the background of the present application.

Fig. 1 is a schematic architecture diagram of a communication system according to an embodiment of the present application;

Fig. 2 is a flow chart of a joint channel estimation method according to an embodiment of the present application;

fig. 3 is a flow chart of a joint channel estimation method according to another embodiment of the present application;

fig. 4 is a flow chart of a joint channel estimation method according to another embodiment of the present application;

fig. 5 is a flow chart of a joint channel estimation method according to another embodiment of the present application;

fig. 6 is a flow chart of a joint channel estimation method according to another embodiment of the present application;

fig. 7 is a flow chart of a joint channel estimation method according to another embodiment of the present application;

fig. 8 is a flow chart of a joint channel estimation method according to another embodiment of the present application;

fig. 9 is a flow chart of a joint channel estimation method according to another embodiment of the present application;

fig. 10 is a schematic structural diagram of a joint channel estimation apparatus according to an embodiment of the present application;

FIG. 11 is a schematic structural diagram of a communication device according to an embodiment of the present application;

FIG. 12 is a schematic diagram of a chip according to an embodiment of the present application;

Detailed Description

Embodiments of the present application are described in detail below, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to like or similar elements or elements having like or similar functions throughout. The embodiments described below by referring to the drawings are exemplary and intended for the purpose of explaining the present application and are not to be construed as limiting the present application.

For ease of understanding, the terms referred to in this application are first introduced.

1. Wireless channel (Wireless channel)

It is an visual metaphor for the path between the transmitting end and the receiving end in wireless communication, and for radio waves, it is transmitted from the transmitting end to the receiving end without a physical connection therebetween, and it is also possible that there is more than one propagation path, and in order to visually describe the operation between the transmitting end and the receiving end, it is conceivable that there is a link between the two that is not visible, and this link path is referred to as a channel.

2. Radio resource control (Radio Resource Control, RRC)

RRC, also called radio resource management (Radio Resource Management, RRM) or radio resource allocation (Radio Resource Allocation, RRA), means that radio resource management, control and scheduling are performed by a certain policy and means, and under the condition of meeting the requirements of quality of service, limited radio network resources are fully utilized as much as possible, so as to ensure that the planned coverage area is reached, and service capacity and resource utilization are improved as much as possible.

3. Channel estimation (channel estimation)

And estimating model parameters of the assumed channel model from the received data. If the channel is linear, then the channel estimate is an estimate of the system impulse response. It is emphasized that channel estimation is a mathematical representation of the effect of a channel on an input signal, while "good" channel estimation is an estimation algorithm that minimizes some estimation error.

4. Frequency offset (frequency offset)

The characteristic phenomenon in the frequency-modulated wave is that the fixed frequency of the frequency-modulated wave deviates to two sides, and the amplitude of the frequency swing of the frequency-modulated wave is the maximum frequency deviation, which affects the spectrum bandwidth of the frequency-modulated wave.

5. Path loss (Path loss)

The propagation loss, which is the loss generated by the propagation of an electric wave in space, is the amount of loss introduced by the propagation environment between the transmitter and the receiver, and is caused by the radiation spread of the transmission power and the propagation characteristics of the channel.

6. Resource blocks (Resource blocks, RB)

The frequency domain basic scheduling unit of the data channel resource allocation is 12 subcarriers in the frequency domain, which is a frequency domain concept and does not define the time domain.

In order to better understand a joint channel estimation method provided in the embodiments of the present application, a communication system used in the embodiments of the present application is first described below.

Fig. 1 is a schematic diagram of a communication system according to an embodiment of the present application. The communication system may include, but is not limited to, one network device and one terminal device, and the number and form of devices shown in fig. 1 are only used as examples and not limiting to the embodiments of the present application, and may include two or more network devices and two or more terminal devices in practical applications. The communication system shown in fig. 1 is exemplified as including a network device 101 and a terminal device 102.

It should be noted that the technical solution of the embodiment of the present application may be applied to various communication systems. For example: a long term evolution (long term evolution, LTE) system, a fifth generation (5th generation,5G) mobile communication system, a 5G New Radio (NR) system, or other future new mobile communication systems, etc.

The network device 101 in the embodiment of the present application is an entity on the network side for transmitting or receiving signals. For example, the network device 101 may be an evolved NodeB (eNB), a transmission point (transmission reception point, TRP), a next generation NodeB (gNB) in an NR system, a base station in other future mobile communication systems, or an access node in a wireless fidelity (wireless fidelity, wiFi) system, etc. The embodiment of the application does not limit the specific technology and the specific device form adopted by the network device. The network device proposed in the embodiment of the present application may be composed of a Central Unit (CU) and a Distributed Unit (DU), where the CU may also be referred to as a control unit (control unit), and the structure of the CU-DU may be used to split the protocol layers of the network device, such as a base station, where functions of part of the protocol layers are placed in the CU for centralized control, and functions of part or all of the protocol layers are distributed in the DU for centralized control of the DU by the CU.

The terminal device 102 in this embodiment of the present application is an entity on the user side for receiving or transmitting signals, such as a mobile phone. The terminal device may also be referred to as a terminal device (terminal), a User Equipment (UE), a Mobile Station (MS), a mobile terminal device (MT), etc. The terminal device may be an automobile with a communication function, a smart car, a mobile phone (mobile phone), a wearable device, a tablet computer (Pad), a computer with a wireless transceiving function, a Virtual Reality (VR) terminal device, an augmented reality (augmented reality, AR) terminal device, a wireless terminal device in industrial control (industrial control), a wireless terminal device in unmanned-driving (self-driving), a wireless terminal device in teleoperation (remote medical surgery), a wireless terminal device in smart grid (smart grid), a wireless terminal device in transportation safety (transportation safety), a wireless terminal device in smart city (smart city), a wireless terminal device in smart home (smart home), or the like. The embodiment of the application does not limit the specific technology and the specific equipment form adopted by the terminal equipment.

It may be understood that, the communication system described in the embodiments of the present application is for more clearly describing the technical solution of the embodiments of the present application, and is not limited to the technical solution set forth in the embodiments of the present application, and those skilled in the art can know that, with the evolution of the system architecture and the appearance of a new service scenario, the technical solution set forth in the embodiments of the present application is equally applicable to similar technical problems.

The following describes in detail a joint channel estimation method and apparatus provided in the present application with reference to the accompanying drawings.

Fig. 2 is a flow chart of a joint channel estimation method according to an embodiment of the present application, where the method is applied to a terminal device, as shown in fig. 2, and the method includes:

s201, obtaining the window number of the joint channel estimation window.

In order to acquire parameter information of the wireless channels, a channel estimation method may be adopted, and in general, transmission may be performed between a plurality of wireless channels and a network device. In order to improve the efficiency of channel estimation, joint channel estimation can be performed for a plurality of wireless channels, thereby improving the efficiency of channel estimation.

Joint channel estimation refers to channel estimation performed on more than one number of radio channels, and in an implementation, the number of radio channels for each joint channel estimation is determined by the number of windows (bundle size) of a joint channel estimation window. The number of windows of the joint channel estimation window defines the number of radio channels involved in the joint channel estimation.

In the embodiment of the present application, the terminal device may acquire the number of windows of the joint channel estimation window, and in some implementations, may agree on the number of windows of the joint channel estimation window through a protocol. In other implementations, the terminal device may obtain the number of windows of the joint channel estimation window based on the indication at the network side. For example, the terminal device may receive indication information sent by the network device, where the indication information may indicate the number of windows of the joint channel estimation window. The indication information may be carried by control signaling, such as downlink control information (downlink control information, DCI) signaling or other signaling.

S202, the same frequency resource and precoding mode are adopted for transmission in each joint channel estimation window.

The network equipment acquires the parameter information of the wireless channel by receiving the signal transmitted by the wireless channel, thereby realizing channel estimation of the wireless channel.

In the embodiment of the present application, after the terminal device obtains the number of windows of the joint channel estimation window, the terminal device may determine the number of joint channel estimation windows involved in the joint channel estimation process. Further, the terminal device performs data or information transmission with the network device within each joint channel estimation window, so that the network device can perform joint channel estimation based on the received transmission. In order to ensure the accuracy of the joint channel estimation, the terminal device may transmit data or information to the network device in the same frequency resource and precoding manner used in each joint channel estimation window. By adopting the same transmission mode to transmit to the network equipment, the accuracy of the joint channel estimation result can be ensured, and the problem of inaccurate joint channel estimation caused by different transmission modes can be avoided.

According to the joint channel estimation method, after the terminal equipment obtains the number of windows of the joint channel estimation windows, the same frequency resource and precoding mode are adopted for transmission in each joint channel estimation window. In the method, the window of the joint channel estimation window is used for realizing joint channel estimation for a plurality of wireless channels, so that the efficiency of channel estimation is improved, and further, the same frequency resource and precoding mode are adopted for signal transmission, so that the accuracy of joint channel estimation is ensured, the reliability of transmission is effectively improved, and further, the covered parameter information is accurately acquired.

Fig. 3 is a flow chart of a joint channel estimation method according to another embodiment of the present application, where the method is applied to a terminal device, and the method includes:

s301, receiving configuration signaling from network equipment, wherein the configuration signaling comprises at least one of the following components: maximum number of transmissions of joint channel estimation; and a number of candidate windows for the joint channel estimation window.

In this embodiment of the present application, the terminal device may receive configuration signaling sent by the network device, where the configuration signaling may include a maximum number of transmissions of joint channel estimation and/or a number of candidate windows of joint channel estimation windows, and optionally the configuration signaling may be higher layer signaling, for example, the configuration signaling may be radio resource control (Radio Resource Control, RRC) signaling.

In some implementations, the configuration signaling may include a number of candidate windows for the joint channel estimation window. It should be noted that, the network device may indicate the maximum number of transmissions for joint channel estimation to the terminal device through additional signaling or agree on the maximum number of transmissions for joint channel estimation through a protocol. In other implementations, the configuration signaling may include a maximum number of transmissions of the joint channel estimation and a number of candidate windows of the joint channel estimation window. Wherein the number of candidate windows may form a configuration set. It is understood that the terminal device may receive configuration signaling carrying both the maximum number of transmissions and the configuration set. In other implementations, the configuration signaling may be sent a maximum number of transmissions before sending a number of candidate windows for the joint channel estimation window.

When the configuration signaling sent by the network device carries the window numbers of the plurality of joint channel estimation windows, the terminal device can acquire the window numbers of the plurality of joint channel estimation windows as candidates based on the configuration signaling.

S302, receiving control signaling from the network equipment, wherein the control signaling is used for activating one of the candidate window numbers as the window number of the joint channel estimation window.

In the embodiment of the present application, the terminal device receives the control signaling from the network device, and activates one of the candidate window numbers of the multiple joint channel estimation windows as the window number of the current joint channel estimation window.

Alternatively, the control signaling may be DCI signaling or other signaling.

After the terminal device activates the number of windows of the joint channel estimation window based on the acquired control signaling sent by the network device, signal transmission can be performed in the window of the joint channel estimation window by adopting the same frequency resource and precoding mode according to the maximum transmission times of the joint channel estimation.

For example, the maximum transmission times of the joint channel estimation are set to be 16 times, the number of candidate windows of the joint channel estimation windows is respectively 2, 4 and 8, and the control signaling of the network device activates 8 of the number of candidate windows as the number of windows of the joint channel estimation windows, so that the terminal device adopts the same frequency resource and precoding mode to perform signal transmission in the windows of the 8 joint channel estimation windows, and the window of each joint channel estimation window is transmitted for 2 times.

For another example, the maximum transmission times of the joint channel estimation are set to be 32 times, the number of candidate windows of the joint channel estimation windows is respectively 2, 4, 8 and 16, and the control signaling of the network device activates 4 of the number of candidate windows as the number of windows of the joint channel estimation windows, so that the terminal device adopts the same frequency resource and precoding mode to perform signal transmission in the windows of the 4 joint channel estimation windows, and the window of each joint channel estimation window is transmitted for 8 times.

S303, the same frequency resource and precoding mode are adopted for transmission in each joint channel estimation window.

In the embodiment of the present application, the terminal device needs to ensure that the same frequency resource and precoding mode are adopted for transmission in each window of the joint channel estimation windows. In some implementations, the terminal device occupies the same starting position on the frequency Resource Blocks (RBs) when transmitting, and adopts the same precoding manner, which can be understood that the terminal device needs to occupy the same starting position on the frequency RBs in each joint channel estimation window in each transmission of the maximum number of transmissions of the joint channel estimation, and needs to adopt the same precoding manner in each joint channel estimation window in each transmission of the maximum number of transmissions of the joint channel estimation.

According to the joint channel estimation method, the terminal equipment configures the candidate window numbers of a plurality of joint channel estimation windows based on the acquired configuration signaling sent by the network equipment, activates one of the candidate window numbers of the joint channel estimation windows to serve as the window number of the joint channel estimation window at this time based on the received control signaling sent by the network equipment, and further, combines the maximum transmission times of joint channel estimation, and adopts the same frequency resource and precoding mode to transmit in each window of the joint channel estimation window. Wherein transmissions within the window of each joint channel estimation window occupy the same starting position on the frequency resource block. In the method, channel estimation of a plurality of wireless channels is realized through the window number of the joint channel estimation windows, the efficiency of channel estimation is improved, the window number of the joint channel estimation windows is effectively determined based on configuration signaling of network equipment, the transmission times in the window of each joint channel estimation window are configured according to the maximum transmission times, the feasibility of joint channel estimation is ensured, the same frequency resource and precoding mode are adopted, the influence of other factors on the channel estimation result is avoided to the greatest extent, the accuracy of joint channel estimation is ensured, the transmission reliability is effectively improved, and further the coverage parameter information is accurately acquired.

Fig. 4 is a flowchart of a joint channel estimation method according to another embodiment of the present application, where the method is applied to a terminal device, and the method includes:

s401, receiving configuration signaling from a network device, the configuration signaling including at least one of: maximum number of transmissions of joint channel estimation; and a number of candidate windows for the joint channel estimation window.

In this embodiment of the present application, the terminal device may receive a configuration signaling sent by the network device, where the configuration signaling may include a maximum number of transmissions of joint channel estimation and/or a number of candidate windows of the joint channel estimation window, and optionally, the configuration signaling may be a higher layer signaling, for example, the configuration signaling may be RRC signaling or other signaling.

In some implementations, the configuration signaling may include a number of candidate windows for the joint channel estimation window. It should be noted that, the network device may indicate the maximum number of transmissions for joint channel estimation to the terminal device through additional signaling or agree on the maximum number of transmissions for joint channel estimation through a protocol. In other implementations, the configuration signaling may include a maximum number of transmissions of the joint channel estimation and a number of candidate windows of the joint channel estimation window. It is understood that the terminal device may receive configuration signaling carrying both the maximum number of transmissions and the configuration of the number of candidate windows for the joint channel estimation window. In other implementations, the configuration signaling may be sent a maximum number of transmissions before sending a number of candidate windows for the joint channel estimation window.

When the configuration signaling sent by the network device carries the number of windows of one joint channel estimation window, the terminal device can acquire the number of windows of one joint channel estimation window as a candidate based on the configuration signaling.

S402, receiving control signaling from the network equipment, wherein the control signaling is used for activating one of the candidate window numbers as the window number of the joint channel estimation window.

In the embodiment of the present application, the terminal device may determine the number of windows of the joint channel estimation window in the joint channel estimation based on the acquired configuration signaling. Further, the same frequency resource and precoding mode are adopted to carry out signal transmission in the window of the joint channel estimation window in combination with the maximum transmission times of the joint channel estimation.

For example, if the maximum transmission number of the joint channel estimation is set to 8, the number of windows of the joint channel estimation windows is set to 8, and the terminal device adopts the same frequency resource and precoding mode to perform signal transmission in the windows of the 8 joint channel estimation windows, and each window of the joint channel estimation windows is transmitted for 1 time.

For another example, if the maximum transmission number of the joint channel estimation is set to be 4 times, the number of windows of the joint channel estimation windows is 4, and the terminal device adopts the same frequency resource and precoding mode to perform signal transmission in the windows of the 4 joint channel estimation windows, and each window of the joint channel estimation windows is transmitted for 1 time.

S403, the same frequency resource and precoding mode are adopted for transmission in each joint channel estimation window.

Step S403 may refer to the above related details, and will not be described here.

According to the joint channel estimation method, terminal equipment configures the number of candidate windows of one joint channel estimation window based on acquired configuration signaling sent by network equipment, and activates the number of candidate windows of the joint channel estimation window to serve as the number of windows of the joint channel estimation window based on control signaling sent by the network equipment, and further, the maximum transmission times of joint channel estimation are combined, and the same frequency resource and precoding mode are adopted for transmission in each window of the joint channel estimation window. In the method, channel estimation of a plurality of wireless channels is realized through the window number of the joint channel estimation windows, the efficiency of channel estimation is improved, the window number of the joint channel estimation windows is effectively determined based on configuration signaling of network equipment, the transmission times in the window of each joint channel estimation window are configured according to the maximum transmission times, the feasibility of joint channel estimation is ensured, the same frequency resource and precoding mode are adopted, the influence of other factors on the channel estimation result is avoided to the greatest extent, the accuracy of joint channel estimation is ensured, the transmission reliability is effectively improved, and further the coverage parameter information is accurately acquired.

In order to resist interference of certain frequencies and ensure transmission quality, the terminal device may activate a frequency hopping mechanism based on signaling of the network device, as shown in fig. 5, fig. 5 is a flow chart of a joint channel estimation method according to another embodiment of the present application, where the method is applied to the terminal device, and the method includes:

s501, receiving configuration signaling from a network device, where the configuration signaling includes at least one of: maximum number of transmissions of joint channel estimation; and a number of one or more candidate windows for the joint channel estimation window.

S502, the terminal equipment receives control signaling from the network equipment, wherein the control signaling is used for activating one of the candidate window numbers as the window number of the joint channel estimation window.

Steps S501 to S502 may refer to the above-mentioned related details, and are not described here again.

S503, in response to the frequency hopping mechanism being activated and configured with a frequency offset, the frequency is hopped according to the frequency offset within each joint channel estimation window for transmission.

In the implementation, the transmission environment of the wireless channel has more interference of objective factors, such as buildings, plants, metal bodies, air and the like passing through a transmission path, and the path loss of different frequencies is different, so that in order to resist the higher path loss possibly generated on certain frequencies and ensure the transmission quality of the wireless channel, a frequency hopping mechanism can be adopted for signal transmission. The network device may send signaling of activation of the frequency hopping mechanism to the terminal device based on the acquired transmission signal quality within the window of each joint channel estimation window. In response to activation of the frequency hopping mechanism, the terminal device may configure a frequency offset for each window of the joint channel estimation window.

In the embodiment of the application, the terminal equipment configures a frequency offset for each window of the joint estimation channel window based on the acquired signaling activated by the frequency hopping mechanism. The configured frequency offset may be understood as the difference between the frequency occupied by the transmission in the window of the current joint channel estimation window and the frequency occupied by the transmission in the window of the last joint channel estimation window.

For example, setting the frequency offset as Z, the frequency occupied by the window transmission of the current joint channel estimation window as a, and based on the frequency hopping mechanism, the frequency occupied by the window transmission of the next joint channel estimation window as b=a+z, and then the frequency occupied by the window transmission of the next joint channel estimation window hops back to a.

After the transmission in the window of the last joint channel estimation window is finished, the terminal equipment adjusts the frequency occupied by the transmission in the window of each joint channel estimation window based on the set frequency offset, and uses the adjusted frequency to perform new transmission in the window of each joint channel estimation window by adopting the same frequency resource and precoding mode.

S504, in response to the frequency hopping mechanism being activated and configured with two frequency offsets, determining that the odd-numbered joint channel estimation window and the even-numbered joint channel estimation window respectively correspond to one of the two frequency offsets; and transmitting after frequency hopping according to the corresponding frequency offset in each joint channel estimation window.

In the embodiment of the present application, in order to better resist interference of some frequencies, the terminal device may configure two frequency offsets based on the acquired signaling activated by the frequency hopping mechanism sent by the network device. In joint channel estimation, the window of each involved joint channel estimation window may be ordered and numbered, so that the window of the even-numbered joint channel estimation window and the window of the odd-numbered joint channel estimation window may respectively correspond to different frequency offsets.

For example, if the frequency offset is set to X and Y, the number of windows of the joint channel estimation window is set to 14, the frequency offset corresponding to the window of the joint channel estimation window with odd number is set to X, the frequency offset corresponding to the window of the joint channel estimation window with even number is set to Y, and the 14 windows of the joint channel estimation window are sequentially numbered, the frequency offset of the window of the joint channel estimation window with numbers 1, 3, 5, 7, 9, 11, 13 is set to X, and the frequency offset of the window of the joint channel estimation window with numbers 2, 4, 6, 8, 10, 12, 14 is set to Y.

The frequency occupied by the window transmission of the odd-numbered joint channel estimation window is M, the frequency occupied by the window transmission of the even-numbered joint channel estimation window is N, the frequency occupied by the window transmission of the next odd-numbered joint channel estimation window is P=M+X, and the frequency occupied by the window transmission of the next odd-numbered joint channel estimation window jumps back to M.

The frequency occupied by the next window transmission of the even numbered joint channel estimation window is q=n+y, and the frequency occupied by the next window transmission of the odd numbered joint channel estimation window jumps back to N.

After the window transmission of the joint channel estimation window is finished each time, the terminal equipment carries out frequency hopping according to different frequency offsets corresponding to the window of the joint channel estimation window, and carries out next transmission on the frequency occupied after frequency hopping.

It should be noted that, the transmission performed after the frequency modulation still follows the principle of performing transmission in the window of each joint channel estimation window by using the same frequency resource and precoding mode.

According to the joint channel estimation method, based on a frequency hopping mechanism activation signaling sent by network equipment, frequency offset is configured for a window of a joint channel estimation window, after transmission in the window of the joint channel estimation window is finished, frequency occupied by window transmission of the joint channel estimation window is adjusted based on the configured frequency offset, and next transmission is carried out in the window of the joint channel estimation window by using the adjusted frequency. When the frequency offset is set to two, the window of each joint channel estimation window may be ordered and numbered, so that the window of the odd-numbered joint channel estimation window and the window of the even-numbered joint channel estimation window may correspond to different frequency offsets. In the method, the frequency hopping mechanism is used for carrying out transmission in the window of the joint channel estimation window, so that the influence of certain frequencies on the transmission can be effectively resisted, the transmission quality in a wireless channel is ensured, the reliability of the transmission is improved, and the accuracy of joint channel estimation is further ensured.

In order to ensure that the above embodiments can be implemented, the present application further provides a joint channel estimation method applied to a network device, as shown in fig. 6, fig. 6 is a flow chart of a joint channel estimation method according to another embodiment of the present application, where the method includes:

s601, the window number of the joint channel estimation window is sent to the terminal equipment.

The number of radio channels involved in the joint channel estimation is determined by the network device, which may determine the number of windows of the joint channel estimation window involved in the joint channel estimation based on the correlation parameters and send the determined number of windows to the terminal device through specific signaling. Wherein, the specific signaling may be control signaling, such as DCI signaling, etc.

S602, the receiving terminal equipment adopts the same frequency resource and precoding mode to transmit in each joint channel estimation window.

In the embodiment of the present application, after the terminal device obtains the number of windows of the joint channel estimation windows and the maximum transmission times of the joint channel estimation, in order to ensure the accuracy of the joint channel estimation, the terminal device uses the same frequency resource and precoding mode to transmit in the window of each joint channel estimation window, and the network device may receive the signal transmitted in the window of each joint channel estimation window.

S603, joint channel estimation is performed based on the performed transmission.

In the embodiment of the application, the terminal equipment adopts the same frequency resource and precoding mode, configures the number of windows of the joint channel estimation windows based on the signaling sent by the network equipment, combines the maximum transmission times of joint channel estimation, transmits the data to the network equipment in the window of each joint channel estimation window, can accept the transmission of the terminal equipment in the window of each joint channel estimation window, demodulates the transmission signal based on the obtained transmission signal, further obtains the parameter information of the window of each joint channel estimation window, and realizes joint channel estimation.

Alternatively, the method of channel estimation may be different based on the type of input signal. For example, for all single carrier systems as well as for multi-carrier systems, a time domain class approach may be used; as another example, frequency domain class methods may also be used for multicarrier systems only.

Alternatively, the method of channel estimation may be different based on the angle of the a priori information. For example, a method based on estimation of a reference signal may be used, where the relevant parameters of the wireless channel are determined according to a preset estimation rule, or the estimation values of the relevant parameters of the wireless channel are gradually tracked and adjusted according to a preset estimation rule, where reference signals such as pilot symbols or training sequences are needed. For another example, a blind estimation method may be adopted, and the characteristics of the transmitted signal itself are utilized to realize channel estimation; for another example, a semi-blind estimation method may be used, and the method may combine the blind estimation and the reference signal based estimation to implement channel estimation.

According to the joint channel estimation method, the network equipment sends the window number configuration signals of the joint channel estimation windows to the terminal equipment based on the relevant parameters, the terminal equipment receives the signals and transmits the signals by adopting the same frequency resource and precoding mode, and in the joint channel estimation method based on the transmission, the network equipment realizes the configuration of the window number of the joint channel estimation windows on the terminal equipment through interaction with the terminal equipment, so that the joint channel estimation has the feasibility, and the accuracy of the joint channel estimation is ensured by carrying out the joint channel estimation based on the received transmissions by adopting the same frequency and precoding mode.

Fig. 7 is a flow chart of a joint channel estimation method according to another embodiment of the present application, where the method is applicable to a network device, as shown in fig. 7, and the method includes:

s701, transmitting configuration signaling to the terminal device, where the configuration signaling includes at least one of: maximum number of transmissions of joint channel estimation; and a number of candidate windows for the joint channel estimation window.

In the embodiment of the present application, the network device needs to send a configuration signaling to the terminal device, so that the terminal device can implement configuration and/or acquisition of the number of windows of the joint channel estimation window and/or the maximum transmission number of the joint channel estimation based on the configuration signaling. Wherein the configuration signaling may include a maximum number of transmissions of the joint channel estimation and/or a number of candidate windows of the joint channel estimation window. Alternatively, the configuration signaling may be higher layer signaling, such as DCI signaling, or the like.

It should be noted that, in some implementations, the configuration signaling may include a number of candidate windows of the joint channel estimation window, and it may be understood that the network device may send the configuration signaling of the number of candidate windows of the joint channel estimation window in advance, and then send the signaling indicating the maximum transmission number of the joint channel estimation to the terminal device. In other implementations, the configuration signaling may include a number of candidate windows of the joint channel estimation window and a maximum number of transmissions of the joint channel estimation, and it may be understood that the network device may send the configuration signaling of the number of candidate windows of the joint channel estimation window and the maximum number of transmissions of the joint channel estimation to the terminal device at the same time.

The configuration signaling sent by the network device may enable the terminal signaling to obtain a number of windows of the joint channel estimation window as candidates.

S702, sending control signaling to the terminal equipment, wherein the control signaling is used for activating one of the candidate window numbers.

In this embodiment, in order for the terminal device to obtain the number of windows of the joint channel estimation window, the network device needs to send a control signaling to the terminal device, so as to activate one of the candidate window numbers of the joint channel estimation window in the terminal device, as the number of windows of the joint channel estimation window.

Alternatively, the control signaling may be downlink control information DCI signaling.

S703, the receiving terminal device adopts the same frequency resource and precoding mode to transmit in each joint channel estimation window.

In the embodiment of the application, in order to ensure the accuracy of the joint channel result, the terminal device transmits in the window of each joint channel estimation window by adopting the same frequency resource and precoding mode, and the network device can accept the transmission of the terminal device in the window of each joint channel estimation window.

In some implementations, the network device receives the transmissions of the terminal device at the same starting location for the frequency resource blocks corresponding to each joint channel estimation window. It may be understood that the network device occupies the same starting position of the frequency Resource Blocks (RBs) corresponding to each joint channel estimation window when receiving the transmission, and receives the transmission performed in the same precoding manner, and it may be understood that the network device needs to receive the transmission of the terminal device at the same starting position on the RBs corresponding to each joint channel estimation window in each transmission in the maximum number of transmissions of receiving the joint channel estimation, and the network device may receive the transmission performed in the same precoding manner in each joint channel estimation window in each transmission in the maximum number of transmissions of receiving the joint channel estimation.

S704, joint channel estimation is performed based on the performed transmission.

Step S704 may refer to the above related details, and will not be described herein.

According to the joint channel estimation method, a network device sends configuration signaling to a terminal device, a plurality of window numbers of joint channel estimation windows are configured for the terminal device to serve as candidates, control signaling is sent to the terminal device, one of the candidate window numbers of the joint channel estimation windows is activated for the terminal device to serve as the window number of the joint channel estimation window, further, the network device can receive transmission of the terminal device in each joint channel estimation window in the same frequency resource and precoding mode, wherein the network device receives the transmission of the terminal device at the same starting position of a frequency resource block corresponding to each joint channel estimation window, and joint channel estimation is achieved based on the received transmission. In the method, the window number of the joint channel estimation window is configured for the terminal, joint channel estimation of a plurality of wireless channels is realized, joint channel estimation efficiency is improved, joint channel estimation is performed based on the received transmission of the same frequency resource and precoding mode in each joint channel estimation window of the terminal equipment, influence of other factors on a channel estimation result is avoided to the greatest extent, and accuracy of joint channel estimation is guaranteed.

Fig. 8 is a flowchart of a joint channel estimation method according to another embodiment of the present application, where the method is applicable to a network device, as shown in fig. 8, and the method includes:

s801, sending configuration signaling to the terminal equipment, wherein the configuration signaling comprises at least one of the following steps: maximum number of transmissions of joint channel estimation; and a number of candidate windows for the joint channel estimation window.

The configuration signaling sent by the network device may enable the terminal signaling to obtain a window number of the joint channel estimation window as a candidate.

S802, sending control signaling to the terminal equipment, wherein the control signaling is used for activating one of the candidate window numbers.

S803, the receiving terminal device adopts the same frequency resource and precoding mode to transmit in each joint channel estimation window.

S804, joint channel estimation is performed based on the performed transmission.

Steps S802 to S804 may refer to the above-mentioned related details, and are not described here again.

According to the joint channel estimation method, the network equipment sends configuration signaling to the terminal equipment, one window number of the joint channel estimation windows is configured for the terminal equipment to serve as a candidate, and control signaling is sent to the terminal equipment, the window number of the candidate joint channel estimation windows is activated for the terminal equipment to serve as the window number of the joint channel estimation windows, further, the network equipment can receive the transmission of the terminal equipment in each joint channel estimation window in the same frequency resource and precoding mode, wherein the network equipment receives the transmission of the terminal equipment at the same starting position of a frequency resource block corresponding to each joint channel estimation window, and joint channel estimation is achieved based on the received transmission. In the method, the window number of the joint channel estimation window is configured for the terminal, joint channel estimation of a plurality of wireless channels is realized, joint channel estimation efficiency is improved, joint channel estimation is performed based on the received transmission of the same frequency resource and precoding mode in each joint channel estimation window of the terminal equipment, influence of other factors on a channel estimation result is avoided to the greatest extent, and accuracy of joint channel estimation is guaranteed.

In order to implement frequency hopping transmission performed by the terminal device within each joint channel estimation window, the network device needs to send a frequency hopping mechanism activation signaling to the terminal device, which can be further understood with reference to fig. 9, fig. 9 is a flowchart of a joint channel estimation method according to another embodiment of the present application, where the method includes:

s901, sending a configuration signaling to a terminal device, where the configuration signaling includes at least one of: maximum number of transmissions of joint channel estimation; and a number of one or more candidate windows for the joint channel estimation window.

S902, a control signaling is sent to the terminal device, where the control signaling is used to activate one of the candidate window numbers.

Steps S901 to S902 may refer to the above-mentioned related details, and are not described here again.

Optionally, the network device may configure a frequency offset for the terminal, including:

s903, activating the activated frequency hopping mechanism of the terminal equipment, and configuring a frequency offset for the terminal equipment.

In the embodiment of the present application, in order to ensure the quality of transmission in each joint channel estimation window, the network device may start the frequency hopping mechanism for the terminal device, so that the terminal device may implement frequency hopping transmission in each joint channel estimation window, and configure a frequency offset for the terminal device based on the relevant parameter information, and further, send the activation instruction of the frequency hopping mechanism and a frequency offset configuration instruction to the terminal device together.

The terminal device may activate a frequency hopping mechanism and configure a frequency offset for each window of the joint channel estimation window based on the acquired signaling sent by the network device.

Optionally, the network device may configure the terminal device with two frequency offsets, including:

s904, activating an activated frequency hopping mechanism of the terminal equipment, and configuring two frequency offsets for the terminal equipment.

In the embodiment of the present application, in order to ensure the quality of transmission in each joint channel estimation window, the network device may start the frequency hopping mechanism for the terminal device, so that the terminal device may implement frequency hopping transmission in each joint channel estimation window, and configure two frequency offsets for the terminal device based on the relevant parameter information, and further, send the frequency hopping mechanism activation instruction and the two frequency offset configuration instructions together to the terminal device.

The terminal device may activate a frequency hopping mechanism and configure two frequency offsets for each window of the joint channel estimation window based on the acquired signaling sent by the network device.

S905, the receiving terminal device performs transmission after hopping by one of the two frequency offsets in the odd-numbered joint channel estimation window, and performs transmission after hopping by the other of the two frequency offsets in the even-numbered joint channel estimation window.

In this embodiment of the present application, after the frequency hopping mechanism is activated, the terminal device may configure the windows of the even-numbered joint channel estimation window and the odd-numbered joint channel estimation window to correspond to different frequency offsets, based on two frequency offsets configured by the network device. The above details may be referred to for the determination of the frequency offset, which is not described herein.

Accordingly, the network device receives the transmission that the terminal device performs after hopping according to one of the two frequency offsets in the odd-numbered joint channel estimation window, and the transmission that the terminal device performs after hopping according to the other of the two frequency offsets in the even-numbered joint channel estimation window.

S906, joint channel estimation is performed based on the performed transmission.

Step S906 may refer to the above related details, and is not repeated here.

According to the joint channel estimation method, a frequency hopping mechanism activation signaling sent by a network device configures a frequency offset for a window of a joint channel estimation window and receives transmission of a terminal device in the window of the joint channel estimation window by using an adjusted frequency, wherein when the frequency offset is set to be two, the terminal device can enable the window of the odd-numbered joint channel estimation window and the window of the even-numbered joint channel estimation window to correspond to different frequency offsets, and correspondingly, the network device receives the transmission of the terminal device in the window of the odd-numbered joint channel estimation window and the window of the even-numbered joint channel estimation window by using the adjusted frequency. In the method, the frequency hopping mechanism is used for carrying out transmission in the window of the joint channel estimation window, so that the influence of certain frequencies on the transmission can be effectively resisted, the transmission quality in a wireless channel is ensured, the reliability of the transmission is improved, and the accuracy of joint channel estimation is further ensured.

In the embodiments of the present application, the method of implementing the present application is described from the perspective of the network device and the terminal device, respectively. In order to implement the functions in the methods set forth in the embodiments of the present application, the network device and the terminal device may include hardware structures, software modules, and implement the functions in the form of hardware structures, software modules, or both hardware structures and software modules. Some of the functions described above may be implemented in a hardware structure, a software module, or a combination of a hardware structure and a software module.

As shown in fig. 10, fig. 10 is a schematic structural diagram of a joint channel estimation apparatus according to an embodiment of the present application, and the joint channel estimation apparatus 1000 may include: a transceiver module 101 and a processing module 102, wherein:

the transceiver module 101 may include a transmitting module for implementing a transmitting function and/or a receiving module for implementing a receiving function, and the transceiver module 101 may implement the transmitting function and/or the receiving function.

Joint channel estimation apparatus 1000, which is a terminal device, comprises:

a transceiver module 101, configured to obtain the number of windows of the joint channel estimation window;

a processing module 102, configured to transmit in each joint channel estimation window using the same frequency resource and precoding mode.

The joint channel estimation apparatus 1000 further includes: a transceiver module 101, configured to receive configuration signaling from a network device, where the configuration signaling includes a maximum number of transmissions of joint channel estimation and/or a number of one or more candidate windows of joint channel estimation windows.

The joint channel estimation apparatus 1000 further includes: a transceiver module 101, configured to receive control signaling from a network device, where the control signaling is used to activate one of the candidate window numbers as a window number of the joint channel estimation window.

The joint channel estimation apparatus 1000 further includes: a processing module 102, configured to occupy the same starting position on the frequency resource block during transmission.

The joint channel estimation apparatus 1000 further includes: a processing module 102, configured to, in response to the frequency hopping mechanism being activated and configured with a frequency offset, hop within each joint channel estimation window according to the frequency offset for transmission.

The joint channel estimation apparatus 1000 further includes: a processing module 102, configured to determine, in response to the frequency hopping mechanism being activated and configured with two frequency offsets, that the odd-numbered joint channel estimation window and the even-numbered joint channel estimation window respectively correspond to one of the two frequency offsets, and to perform transmission after frequency hopping within each joint channel estimation window according to the respective corresponding frequency offset.

Joint channel estimation apparatus 1000, being a network device, comprising:

a transceiver module 101, configured to send the number of windows of the joint channel estimation window to a terminal device;

the transceiver module 101 is further configured to receive a transmission performed by the terminal device in each joint channel estimation window by using the same frequency resource and precoding manner;

a processing module 102 for performing joint channel estimation based on the performed transmissions.

The joint channel estimation apparatus 1000 further includes: a transceiver module 101, configured to send configuration signaling to the terminal device, where the configuration signaling includes a maximum number of transmissions of joint channel estimation and/or a number of one or more candidate windows of joint channel estimation windows.

The joint channel estimation apparatus 1000 further includes: a transceiver module 101, configured to send control signaling to the terminal device, where the control signaling is used to activate one of the candidate window numbers.

The joint channel estimation apparatus 1000 further includes: a processing module 102, configured to receive the transmission of the terminal device at the same starting position of the frequency resource block corresponding to each joint channel estimation window.

The joint channel estimation device 1000, the processing module 102 is further configured to: activating an activated frequency hopping mechanism of the terminal equipment, and configuring a frequency offset for the terminal equipment; and receiving the transmission which is carried out by the terminal equipment after frequency hopping according to the frequency offset in each joint channel estimation window.

The joint channel estimation device 1000, the processing module 102 is further configured to: activating an activated frequency hopping mechanism of the terminal equipment, and configuring two frequency offset values for the terminal equipment; the receiving terminal device performs transmission after hopping in accordance with one of the two frequency offsets within the odd-numbered joint channel estimation window, and performs transmission after hopping in accordance with the other of the two frequency offsets within the even-numbered joint channel estimation window.

According to the joint channel estimation device, network equipment generates configuration signaling of the window number of the joint channel estimation windows and/or the maximum transmission number of the joint channel estimation and sends the configuration signaling to terminal equipment, the terminal equipment obtains the candidate window number of the joint channel estimation windows and the maximum transmission number of the joint channel estimation based on the obtained configuration signaling sent by the network equipment, the network equipment sends window number activation control signaling of the joint channel estimation windows to the terminal equipment, and the terminal equipment activates and determines the window number of the joint channel estimation windows based on the obtained control signaling. Further, the network device generates a frequency hopping mechanism activation signaling and configures a frequency offset for the terminal device, and the terminal device configures the frequency offset for a window of the joint channel estimation window in response to the frequency hopping mechanism activation signaling. Optionally, the terminal device may transmit in the joint channel estimation window by using the same frequency resource and precoding mode in a scenario where the frequency hopping mechanism is not activated, and optionally, the terminal device performs frequency hopping transmission by using the same frequency resource and precoding mode in a scenario where the frequency hopping mechanism is activated. The network device may receive the transmissions made within the joint channel estimation window and perform joint channel estimation based on the transmissions. In the method, the network equipment and the terminal equipment interact to enable joint channel estimation to be practical, the window of the joint channel estimation window is used for realizing joint channel estimation for a plurality of wireless channels, the efficiency of channel estimation is improved, further, the same frequency resource and precoding mode are adopted for signal transmission, influence of other factors on a channel estimation result is avoided to the greatest extent, the accuracy of joint channel estimation is guaranteed, the reliability of transmission is effectively improved, and further coverage parameter information is accurately acquired.

Fig. 11 is a schematic structural diagram of another communication device 1100 according to an embodiment of the present application. The communication device 1100 may be a network device, a terminal device, a chip system, a processor, or the like that supports the network device to implement the above method, or a chip, a chip system, a processor, or the like that supports the terminal device to implement the above method. The device can be used for realizing the method described in the method embodiment, and can be particularly referred to the description in the method embodiment.

The communications device 1100 may include one or more processors 1101. The processor 1101 may be a general purpose processor or a special purpose processor, or the like. For example, a baseband processor or a central processing unit. The baseband processor may be used to process communication protocols and communication data, and the central processor may be used to control communication devices (e.g., base stations, baseband chips, terminal equipment chips, DUs or CUs, etc.), execute computer programs, and process data of the computer programs.

Optionally, the communication device 1100 may further include one or more memories 1102, on which a computer program 1104 may be stored, and the processor 1101 executes the computer program 1104, so that the communication device 1100 performs the method described in the above method embodiments. Optionally, the memory 1102 may also have data stored therein. The communication device 1100 and the memory 1102 may be provided separately or may be integrated.

Optionally, the communication device 1100 may further include a transceiver 1105, an antenna 1106. The transceiver 1105 may be referred to as a transceiver unit, a transceiver circuit, or the like, for implementing a transceiver function. The transceiver 1105 may include a receiver, which may be referred to as a receiver or a receiving circuit, etc., for implementing a receiving function; the transmitter may be referred to as a transmitter or a transmitting circuit, etc., for implementing a transmitting function.

Optionally, one or more interface circuits 1107 may also be included in the communication device 1100. Interface circuit 1107 is configured to receive code instructions and transmit them to processor 1101. The processor 1101 executes code instructions to cause the communication device 1100 to perform the method described in the method embodiments described above.

The communication apparatus 1100 is a terminal device: the processor 1101 is configured to execute step S202 in fig. 2, step S303 in fig. 3, step S503 in fig. 5, and so on; the transceiver 1105 is configured to perform step S201 in fig. 2, step S301 in fig. 3, step S501 in fig. 5, and so on.

The communication apparatus 1100 is a network device: the transceiver 1105 is configured to perform step S601 in fig. 6, step S701 in fig. 7, step S801 in fig. 8, and so on; the processor 1101 is configured to execute step S603 in fig. 6, step S703 in fig. 7, step S804 in fig. 8, and the like.

In one implementation, a transceiver for implementing the receive and transmit functions may be included in the processor 1101. For example, the transceiver may be a transceiver circuit, or an interface circuit. The transceiver circuitry, interface or interface circuitry for implementing the receive and transmit functions may be separate or may be integrated. The transceiver circuit, interface or interface circuit may be used for reading and writing codes/data, or the transceiver circuit, interface or interface circuit may be used for transmitting or transferring signals.

In one implementation, the processor 1101 may store a computer program 1103, where the computer program 1103 runs on the processor 1101, and may cause the communication device 1100 to perform the method described in the above method embodiments. The computer program 1103 may be solidified in the processor 1101, in which case the processor 1101 may be implemented by hardware.

In one implementation, the communication apparatus 1100 may include circuitry that may implement the functions of transmitting or receiving or communicating in the foregoing method embodiments. The processors and transceivers described herein may be implemented on integrated circuits (integrated circuit, ICs), analog ICs, radio frequency integrated circuits RFICs, mixed signal ICs, application specific integrated circuits (application specific integrated circuit, ASIC), printed circuit boards (printed circuit board, PCB), electronic devices, and the like. The processor and transceiver may also be fabricated using a variety of IC process technologies such as complementary metal oxide semiconductor (complementary metal oxide semiconductor, CMOS), N-type metal oxide semiconductor (NMOS), P-type metal oxide semiconductor (positive channel metal oxide semiconductor, PMOS), bipolar junction transistor (bipolar junction transistor, BJT), bipolar CMOS (BiCMOS), silicon germanium (SiGe), gallium arsenide (GaAs), etc.

The communication apparatus described in the above embodiment may be a network device or a terminal device (such as the first terminal device in the foregoing method embodiment), but the scope of the communication apparatus described in the present application is not limited thereto, and the structure of the communication apparatus may not be limited by fig. 11. The communication means may be a stand-alone device or may be part of a larger device. For example, the communication device may be:

(1) A stand-alone integrated circuit IC, or chip, or a system-on-a-chip or subsystem;

(2) A set of one or more ICs, optionally including storage means for storing data, a computer program;

(3) An ASIC, such as a Modem (Modem);

(4) Modules that may be embedded within other devices;

(5) A receiver, a terminal device, an intelligent terminal device, a cellular phone, a wireless device, a handset, a mobile unit, a vehicle-mounted device, a network device, a cloud device, an artificial intelligent device, and the like;

(6) Others, and so on.

For the case where the communication device may be a chip or a chip system, reference may be made to the schematic structural diagram of the chip shown in fig. 12. The chip shown in fig. 12 includes a processor 1201 and an interface 1202. Wherein the number of processors 1201 may be one or more, and the number of interfaces 1202 may be a plurality.

For the case where the chip is used to implement the functions of the terminal device in the embodiment of the present application:

an interface 1202 for executing step S201 in fig. 2, step S301 in fig. 3, step S501 in fig. 5, and the like.

For the case where the chip is used to implement the functions of the network device in the embodiments of the present application:

an interface 1202 for executing step S603 in fig. 6, step S703 in fig. 7, step S804 in fig. 8, and the like.

Optionally, the chip further comprises a memory 1203, the memory 1203 being for storing the necessary computer programs and data.

Those of skill would further appreciate that the various illustrative logical blocks (illustrative logical block) and steps (steps) described in connection with the embodiments herein may be implemented as electronic hardware, computer software, or combinations of both. Whether such functionality is implemented as hardware or software depends upon the particular application and design requirements of the overall system. Those skilled in the art may implement the functionality in a variety of ways for each particular application, but such implementation should not be understood to be beyond the scope of the embodiments of the present application.

The embodiment of the application also provides a joint channel estimation system, which comprises the communication device as the terminal device (such as the terminal device in the embodiment of the method) and the communication device as the network device in the embodiment of the foregoing fig. 11, or comprises the communication device as the terminal device (such as the terminal device in the embodiment of the foregoing method) and the communication device as the network device in the embodiment of the foregoing fig. 12.

The present application also proposes a readable storage medium having stored thereon instructions which, when executed by a computer, implement the functions of any of the method embodiments described above.

The present application also proposes a computer program product which, when executed by a computer, implements the functions of any of the method embodiments described above.

In the above embodiments, it may be implemented in whole or in part by software, hardware, firmware, or any combination thereof. When implemented in software, may be implemented in whole or in part in the form of a computer program product. The computer program product comprises one or more computer programs. When the computer program is loaded and executed on a computer, the flow or functions according to embodiments of the present application are fully or partially produced. The computer may be a general purpose computer, a special purpose computer, a computer network, or other programmable apparatus. The computer program may be stored in or transmitted from one computer readable storage medium to another, for example, a website, computer, server, or data center via a wired (e.g., coaxial cable, fiber optic, digital subscriber line (digital subscriber line, DSL)) or wireless (e.g., infrared, wireless, microwave, etc.) connection. Computer readable storage media can be any available media that can be accessed by a computer or data storage devices, such as servers, data centers, etc., that contain an integration of one or more available media. The usable medium may be a magnetic medium (e.g., a floppy disk, a hard disk, a magnetic tape), an optical medium (e.g., a high-density digital video disc (digital video disc, DVD)), or a semiconductor medium (e.g., a Solid State Disk (SSD)), or the like.

Those of ordinary skill in the art will appreciate that: the first, second, etc. numbers referred to in this application are merely for convenience of description and are not intended to limit the scope of the embodiments of the present application, but also to indicate the sequence.

At least one of the present application may also be described as one or more, and a plurality may be two, three, four or more, and the present application is not limited thereto. In the embodiment of the present application, for a technical feature, the technical features of the technical feature are distinguished by "first", "second", "third", "a", "B", "C", and "D", and the technical features described by "first", "second", "third", "a", "B", "C", and "D" are not in sequence or in order of magnitude.

The correspondence relationship shown in each table in the present application may be configured or predefined. The values of the information in each table are merely examples, and may be configured as other values, which are not limited in this application. In the case of the correspondence between the configuration information and each parameter, it is not necessarily required to configure all the correspondence shown in each table. For example, in the table in the present application, the correspondence shown by some rows may not be configured. For another example, appropriate morphing adjustments, e.g., splitting, merging, etc., may be made based on the tables described above. The names of the parameters indicated in the tables may be other names which are understood by the communication device, and the values or expressions of the parameters may be other values or expressions which are understood by the communication device. When the tables are implemented, other data structures may be used, for example, an array, a queue, a container, a stack, a linear table, a pointer, a linked list, a tree, a graph, a structure, a class, a heap, a hash table, or a hash table.

Predefined in this application may be understood as defining, predefining, storing, pre-negotiating, pre-configuring, curing, or pre-firing.

Those of ordinary skill in the art will appreciate that the various illustrative elements and algorithm steps described in connection with the embodiments disclosed herein may be implemented as electronic hardware, or combinations of computer software and electronic hardware. Whether such functionality is implemented as hardware or software depends upon the particular application and design constraints imposed on the solution. Skilled artisans may implement the described functionality in varying ways for each particular application, but such implementation decisions should not be interpreted as causing a departure from the scope of the present application.

It will be clear to those skilled in the art that, for convenience and brevity of description, specific working procedures of the above-described systems, apparatuses and units may refer to corresponding procedures in the foregoing method embodiments, and are not repeated herein.

The foregoing is merely specific embodiments of the present application, but the scope of the present application is not limited thereto, and any person skilled in the art can easily think about changes or substitutions within the technical scope of the present application, and the changes or substitutions are intended to be covered by the scope of the present application. Therefore, the protection scope of the present application shall be subject to the protection scope of the claims.

Claims

1. A joint channel estimation method, applied to a terminal device, the method comprising:

acquiring the number of windows of the joint channel estimation window;

transmitting by adopting the same frequency resource and precoding mode in each joint channel estimation window; wherein,,

further comprises:

receiving configuration signaling from a network device, the configuration signaling comprising at least one of:

maximum number of transmissions of joint channel estimation; and

the number of one or more candidate windows of the joint channel estimation window.

2. The method as recited in claim 1, further comprising:

control signaling is received from the network device, the control signaling being used to activate one of the candidate window numbers as the window number of the joint channel estimation window.

3. The method as recited in claim 1, further comprising:

the transmission occupies the same starting position on the frequency resource block.

4. The method as recited in claim 1, further comprising:

in response to the hopping mechanism being activated and configured with a frequency offset, transmissions are performed within each of the joint channel estimation windows after hopping by the frequency offset.

5. The method as recited in claim 1, further comprising:

determining that the odd-numbered joint channel estimation window and the even-numbered joint channel estimation window each correspond to one of the two frequency offsets in response to the frequency hopping mechanism being activated and configured with the two frequency offsets; and

and frequency hopping is carried out in each joint channel estimation window according to the corresponding frequency offset, and then transmission is carried out.

6. A joint channel estimation method, for use with a network device, the method comprising:

transmitting the number of windows of the joint channel estimation window to the terminal equipment;

receiving the transmission of the terminal equipment in each joint channel estimation window by adopting the same frequency resource and precoding mode;

performing joint channel estimation based on the performed transmissions; wherein,,

further comprises:

transmitting configuration signaling to the terminal device, wherein the configuration signaling comprises at least one of the following components:

maximum number of transmissions of joint channel estimation; and

7. The method as recited in claim 6, further comprising:

and sending control signaling to the terminal equipment, wherein the control signaling is used for activating one of the candidate window numbers.

8. The method as recited in claim 6, further comprising:

and receiving the transmission of the terminal equipment at the same starting position of the frequency resource block corresponding to each joint channel estimation window.

9. The method as recited in claim 6, further comprising:

activating an activated frequency hopping mechanism of the terminal equipment, and configuring a frequency offset for the terminal equipment;

and receiving the transmission carried out by the terminal equipment after frequency hopping according to the frequency offset in each joint channel estimation window.

10. The method as recited in claim 6, further comprising:

activating an activated frequency hopping mechanism of the terminal equipment, and configuring two frequency offset values for the terminal equipment;

and receiving the transmission of the terminal equipment after frequency hopping according to one of the two frequency offsets in the odd-numbered joint channel estimation window, and the transmission after frequency hopping according to the other of the two frequency offsets in the even-numbered joint channel estimation window.

11. A joint channel estimation apparatus, for use in a terminal device, the apparatus comprising:

the receiving and transmitting module is used for acquiring the number of windows of the joint channel estimation window;

The processing module is used for transmitting by adopting the same frequency resource and precoding mode in each joint channel estimation window; wherein,,

further comprises:

the transceiver module is configured to receive configuration signaling from a network device, where the configuration signaling includes at least one of:

maximum number of transmissions of joint channel estimation; and

12. The apparatus as recited in claim 11, further comprising:

the transceiver module is configured to receive control signaling from the network device, where the control signaling is used to activate one of the candidate window numbers as the window number of the joint channel estimation window.

13. The apparatus as recited in claim 11, further comprising:

the processing module is used for occupying the same starting position on the frequency resource block during transmission.

14. The apparatus as recited in claim 11, further comprising:

the processing module is configured to respond to the activation of the frequency hopping mechanism and configured with a frequency offset, and perform transmission after frequency hopping according to the frequency offset in each joint channel estimation window.

15. The apparatus as recited in claim 11, further comprising:

the processing module is used for determining that the odd-numbered joint channel estimation window and the even-numbered joint channel estimation window respectively correspond to one of the two frequency offsets in response to the frequency hopping mechanism being activated and configured with the two frequency offsets; and

16. A joint channel estimation apparatus for use with a network device, the apparatus comprising:

a transceiver module, configured to send the number of windows of the joint channel estimation window to a terminal device;

the receiving and transmitting module is used for receiving the transmission of the terminal equipment in each joint channel estimation window by adopting the same frequency resource and precoding mode;

a processing module for performing joint channel estimation based on the performed transmissions; wherein,,

further comprises:

the transceiver module is configured to send configuration signaling to the terminal device, where the configuration signaling includes at least one of the following:

maximum number of transmissions of joint channel estimation; and

17. The apparatus as recited in claim 16, further comprising:

the transceiver module is configured to send control signaling to the terminal device, where the control signaling is used to activate one of the candidate window numbers.

18. The apparatus as recited in claim 16, further comprising:

and the processing module is used for receiving the transmission of the terminal equipment at the same starting position of the frequency resource block corresponding to each joint channel estimation window.

19. The apparatus of claim 16, wherein the processing module is further configured to:

20. The apparatus of claim 16, wherein the processing module is further configured to:

21. A communication device, characterized in that the device comprises a processor and a memory, the memory having stored therein a computer program, the processor executing the computer program stored in the memory to cause the device to perform the method according to any of claims 1 to 5.

22. A communication device, characterized in that the device comprises a processor and a memory, the memory having stored therein a computer program, the processor executing the computer program stored in the memory to cause the device to perform the method according to any of claims 6 to 10.

23. A communication device, comprising: a processor and interface circuit;

the interface circuit is used for receiving code instructions and transmitting the code instructions to the processor;

the processor for executing the code instructions to perform the method of any one of claims 1 to 5.

24. A communication device, comprising: a processor and interface circuit;

the processor for executing the code instructions to perform the method of any one of claims 6 to 10.

25. A computer readable storage medium storing instructions which, when executed, cause a method as claimed in any one of claims 1 to 5 to be implemented.

26. A computer readable storage medium storing instructions which, when executed, cause a method as claimed in any one of claims 6 to 10 to be implemented.