WO2018171742A1 - Wireless communication method and device - Google Patents

Abstract

The present application provides a wireless communication method and device, capable of flexibly configure a phase tracking reference signal, thus reducing the number of subcarriers occupied by the phase tracking reference signal and saving resource overhead. The method comprises: determining by a network device the pattern of a phase tracking reference signal according to at least one from the threshold of a modulation coding mode corresponding to the pattern of a phase tracking reference signal requested by a terminal device, the threshold of the number of scheduling resource blocks corresponding to the phase tracking reference signal requested by the terminal device, and the influence factor of phase noise of the terminal device on a signal received by the terminal device, and at least one from the modulation coding mode of a current network device scheduling the terminal and a bandwidth of the current network device scheduling the terminal; and transmitting to the terminal device the phase tracking reference signal according to the determined pattern of the phase tracking reference signal.

Description

Method and device for wireless communication

This application is required to be submitted to the China Patent Office on March 24, 2017, the application number is 201710184785.6, the application name is "wireless communication method, network equipment and terminal equipment" and submitted to the Chinese Patent Office on August 11, 2017, the application number is The priority of the Chinese Patent Application, the entire disclosure of which is hereby incorporated by reference in its entirety in its entirety in the the the the the the the the the

Technical field

The present application relates to the field of communications and, more particularly, to a method and apparatus for wireless communication.

Background technique

In the existing wireless communication networks, the frequency range below 6 GHz is available for less and less, and cannot meet the increasing communication requirements. In the next generation wireless communication network (such as 5G), the working frequency band of the communication system is above 6 GHz, so the next generation wireless communication network has the remarkable characteristics of the high frequency communication system, so that it is easy to achieve higher throughput. However, compared with existing wireless communication networks, next-generation wireless communication networks operating in the range above 6 GHz will suffer from more severe medium-frequency distortion, especially phase noise (PHN), and the higher the phase noise level. The greater the influence of Common Phase Error (CPE).

The prior art provides a De-modulation Reference Signal (DMRS) and a Phase Tracking Reference Signal (PTRS) (also referred to as a Phase Compensation Reference Signal (PCRS)). Channel estimation and phase noise estimation and data demodulation are done together. The prior art PTRS adopts a time domain continuation method, and corresponds to a plurality of port frequency divisions in the frequency domain. The phase tracking reference signal patterns of different terminal devices in different modulation and coding modes and/or different scheduling bandwidths are fixed configuration modes. In the big data bandwidth, more subcarriers are occupied, and the resource overhead is large. In addition, in different scenarios, such as different phase noise levels and moving speeds, the design of fixed time and frequency density is not flexible enough.

Therefore, how to flexibly configure PTRS, reduce the number of subcarriers occupied by PTRS, and save resource overhead is an urgent problem to be solved.

Summary of the invention

The present application provides a method for wireless communication, which realizes configuration of a flexible phase tracking reference signal pattern of different terminal devices in different modulation and coding modes and/or different scheduling bandwidths, and ensures phase noise error compensation performance while reducing phase tracking reference. Signal overhead increases spectral efficiency.

The first aspect provides a method for wireless communication, including: a threshold of a modulation coding mode corresponding to a phase tracking reference signal pattern requested by a network device, and a number of scheduling resource blocks corresponding to the phase tracking reference signal requested by the terminal device. a threshold, and at least one of a factor of influence of the phase noise of the terminal device on the signal received by the terminal device, and at least one of a modulation coding mode of the current network device scheduling terminal device and a bandwidth of the current network device scheduling terminal device And determining a pattern of the phase tracking reference signal; and transmitting the phase tracking reference signal to the terminal device according to the determined pattern of the phase tracking reference signal.

Therefore, the network device according to the phase tracking reference signal pattern requested by the terminal device, the modulation coding mode threshold, the threshold number of the scheduling resource block corresponding to the phase tracking reference signal requested by the terminal device, and the phase noise of the terminal device to the terminal Determining a pattern of the phase tracking reference signal by at least one of an influence factor of a signal received by the device, and at least one of a modulation coding mode of the current network device scheduling terminal device and a bandwidth of the current network device scheduling terminal device, The configuration of the phase tracking reference signal pattern with different modulation and coding modes and/or different scheduling bandwidths of different terminal devices is realized, the phase noise error compensation performance is ensured, the cost of the phase tracking reference signal is reduced, and the spectrum efficiency is improved.

Optionally, in an implementation manner of the first aspect, the network device follows a modulation coding mode threshold corresponding to a phase tracking reference signal pattern requested by the terminal device, and a scheduling resource corresponding to the phase tracking reference signal requested by the terminal device. a block number threshold, and at least one of a factor of influence of the phase noise of the terminal device on the signal received by the terminal device, and a current modulation mode of the network device scheduling the terminal device and the current network device scheduling the terminal device The method further includes: at least one of the bandwidths before determining the pattern of the phase tracking reference signal:

Receiving, by the network device, a modulation coding mode threshold corresponding to the phase tracking reference signal pattern requested by the terminal device, a threshold number of scheduling resource blocks corresponding to the phase tracking reference signal requested by the terminal device, and a phase noise pair of the terminal device At least one of the influence factors of the signals received by the terminal device.

Optionally, in an implementation manner of the first aspect, the network device follows a modulation coding mode threshold corresponding to a phase tracking reference signal pattern requested by the terminal device, and a scheduling resource corresponding to the phase tracking reference signal requested by the terminal device. a block number threshold, and at least one of a factor of influence of the phase noise of the terminal device on the signal received by the terminal device, and a current modulation mode of the network device scheduling the terminal device and the current network device scheduling the terminal device The method further includes: at least one of the bandwidths before determining the pattern of the phase tracking reference signal:

The network device receives the number of the table of the modulation coding mode threshold corresponding to the phase tracking reference signal pattern sent by the terminal device and/or the number of the table of the threshold number of the scheduling resource block corresponding to the phase tracking reference signal pattern.

Optionally, in an implementation manner of the first aspect, the network device follows a modulation coding mode threshold corresponding to a phase tracking reference signal pattern requested by the terminal device, and a scheduling resource corresponding to the phase tracking reference signal requested by the terminal device. a block number threshold, and at least one of a factor of influence of the phase noise of the terminal device on the signal received by the terminal device, and a current modulation mode of the network device scheduling the terminal device and the current network device scheduling the terminal device The method further includes: at least one of the bandwidths before determining the pattern of the phase tracking reference signal:

Receiving, by the network device, a number of a parameter associated with a modulation coding mode threshold corresponding to the phase tracking reference signal pattern sent by the terminal device, and/or a parameter number associated with a threshold number of scheduling resource blocks corresponding to the phase tracking reference signal pattern ;

And a parameter of a parameter associated with a modulation coding mode threshold corresponding to the phase tracking reference signal pattern and/or a parameter associated with a threshold number of scheduling resource blocks corresponding to the phase tracking reference signal pattern, sent by the terminal device No. determining a modulation coding mode threshold corresponding to the phase tracking reference signal pattern requested by the terminal device, and a threshold number of scheduling resource blocks corresponding to the phase tracking reference signal requested by the terminal device.

Optionally, in an implementation manner of the first aspect, a parameter associated with a modulation coding mode threshold corresponding to the phase tracking reference signal pattern and/or a modulation coding mode threshold corresponding to the phase tracking reference signal pattern is associated The parameters include at least one of the following parameters: a frequency point, a phase noise model of the terminal device, a subcarrier spacing, and the receiver's ability to process phase noise.

Optionally, in an implementation manner of the first aspect, the threshold of the number of scheduling resource blocks corresponding to the phase tracking reference signal that is requested by the terminal device may be a bandwidth threshold corresponding to the phase tracking reference signal that is requested by the terminal device.

Optionally, in an implementation manner of the first aspect, determining a pattern of the phase tracking reference signal includes:

And determining a time domain density of the phase tracking reference signal according to a modulation coding mode threshold corresponding to the phase tracking reference signal pattern requested by the terminal device, and a modulation coding mode of the current network device scheduling terminal device.

Optionally, in an implementation manner of the first aspect, determining a time domain density of the phase tracking reference signal according to a modulation coding mode threshold corresponding to the phase tracking reference signal pattern and a currently scheduled modulation coding manner, including: Correcting a modulation coding mode threshold corresponding to the phase tracking reference signal pattern according to the phase noise of the network device; a modulation coding mode threshold corresponding to the corrected phase tracking reference signal pattern, and a modulation coding mode of the current network device scheduling terminal device , determining the time domain density of the phase tracking reference signal.

Therefore, by determining the time domain density of the phase tracking reference signal according to the modulation coding mode threshold corresponding to the phase tracking reference signal pattern and the currently scheduled modulation coding mode, the phase tracking reference signal can be flexibly configured in the time domain, thereby saving Resource overhead increases spectral efficiency.

Optionally, in an implementation manner of the first aspect, before the phase tracking reference signal is sent to the terminal device according to the pattern of the phase tracking reference signal, the method further includes: when the network device corrects the phase tracking And transmitting, by the terminal device, first indication information, where the first indication information is used to indicate a modified modulation and coding mode threshold corresponding to the phase tracking reference signal pattern; or when the network device When the modulation coding mode threshold corresponding to the phase tracking reference signal pattern is not corrected, the first indication information is sent to the terminal device, and the first indication information is confirmation information.

Optionally, in an implementation manner of the first aspect, the first indication information is sent to the terminal device, where the first indication information is used to indicate a threshold of a modulation and coding mode corresponding to the corrected phase tracking reference signal pattern. ,include:

The first indication information indicates the corrected value by using a difference between a modulation coding mode threshold corresponding to the corrected phase tracking reference signal pattern and a modulation coding mode threshold corresponding to the phase tracking reference signal pattern requested by the terminal device. The phase tracking reference signal pattern corresponds to a modulation coding mode threshold.

Optionally, in an implementation manner of the first aspect, the first indication information is radio resource control signaling.

Optionally, in an implementation manner of the first aspect, determining a pattern of the phase tracking reference signal includes:

And determining a frequency domain density of the phase tracking reference signal according to a threshold of a number of scheduling bandwidth resource blocks corresponding to the phase tracking reference signal and a bandwidth of the current network device scheduling terminal device.

Optionally, in an implementation manner of the first aspect, determining a frequency domain density of the phase tracking reference signal according to a threshold of a number of scheduling resource blocks corresponding to the phase tracking reference signal, and a currently scheduled bandwidth, including: Phase noise of the network device, correcting the threshold of the number of scheduling resource blocks corresponding to the phase tracking reference signal; determining the phase according to the threshold of the number of scheduling resource blocks corresponding to the corrected phase tracking reference signal, and the bandwidth of the current network device scheduling terminal device Track the frequency domain density of the reference signal.

Therefore, the frequency domain density of the phase tracking reference signal is determined by the threshold of the number of scheduling resource blocks corresponding to the phase tracking reference signal and the currently scheduled bandwidth, and the phase tracking reference signal can be flexibly configured in the frequency domain, thereby reducing the phase. Tracking the number of subcarriers occupied by the reference signal saves resource overhead and improves spectrum efficiency.

Optionally, in an implementation manner of the first aspect, before the phase tracking reference signal is sent to the terminal device according to the pattern of the phase tracking reference signal, the method further includes: when the network device corrects the phase tracking And transmitting, by the terminal device, the second indication information, where the second indicator information is used to indicate the threshold of the number of scheduling resource blocks corresponding to the modified phase tracking reference signal; or when the network When the device does not have the threshold of the number of the scheduling resource blocks corresponding to the phase tracking reference signal, the second indication information is sent to the terminal device, and the second indication information is the confirmation information.

Optionally, in an implementation manner of the first aspect, the second indication information is sent to the terminal device, where the second indication information is used to indicate a threshold of a number of scheduling resource blocks corresponding to the corrected phase tracking reference signal. The second indication information is indicated by the difference between the threshold number of the scheduling resource block corresponding to the corrected phase tracking reference signal pattern and the threshold value of the number of scheduling resource blocks corresponding to the phase tracking reference signal pattern requested by the terminal device. The corrected phase tracking reference signal pattern corresponds to a threshold number of scheduling resource blocks.

Optionally, in an implementation manner of the first aspect, the second indication information is radio resource control signaling.

Optionally, in an implementation manner of the first aspect, determining a pattern of the phase tracking reference signal includes:

And determining a pattern of the phase tracking reference signal according to an influence factor of the phase noise of the terminal device on the signal received by the terminal device.

Optionally, in an implementation manner of the first aspect, determining a pattern of the phase tracking reference signal according to an influence factor of the phase noise of the terminal device on the signal received by the terminal device, including: according to the terminal device and The power spectral density of the phase noise integrated by the network device, and the modulation coding mode threshold and/or the number of resource blocks corresponding to the phase tracking reference signal pattern according to the influence factor of the phase noise of the terminal device on the signal received by the terminal device A threshold that determines the pattern of the phase tracking reference signal.

Optionally, in an implementation manner of the first aspect, the power spectral density integrated according to the phase noise of the terminal device and the network device, and the influence factor of the signal received by the terminal device according to the phase noise of the terminal device Determining a pattern of the phase tracking reference signal, comprising: modifying a power spectral density of the phase noise integrated by the terminal device and the network device according to an influence factor of the phase noise of the terminal device on the signal received by the terminal device;

Determining, according to the modified power spectral density of the phase noise of the terminal device and the network device, a modulation coding mode threshold and/or a resource block threshold corresponding to the phase tracking reference signal pattern, and scheduling the modulation of the terminal device according to the current network device The coding mode and/or bandwidth determines the pattern of the phase tracking reference signal.

Optionally, in an implementation manner of the first aspect, the integrated power spectral density according to the phase noise of the terminal device and the network device, and the signal received by the terminal device according to the phase noise of the terminal device The influence factor, before determining the pattern of the phase tracking reference signal, the method further includes:

And estimating a comprehensive power spectral density of phase noise of the terminal device and the network device according to the random access signal or the uplink reference signal sent by the terminal device.

Optionally, in an implementation manner of the first aspect, before the sending the phase tracking reference signal to the terminal device according to the pattern of the phase tracking reference signal, the method further includes:

Sending, to the terminal device, a modulation coding mode threshold corresponding to the determined phase tracking reference signal pattern and/or a scheduling resource block number threshold corresponding to the phase tracking reference signal.

Therefore, according to the power spectral density integrated by the phase noise of the terminal device and the network device, and the influence factor of the phase noise of the terminal device on the signal received by the terminal device, determining the pattern of the phase tracking reference signal may be The phase tracking reference signal is flexibly configured in the domain and/or the frequency domain, which reduces the number of subcarriers occupied by the phase tracking reference signal and saves resource overhead.

Optionally, in an implementation manner of the first aspect, the determining, by the terminal device, a modulation coding mode threshold corresponding to the determined phase tracking reference signal pattern and/or a threshold number of scheduling resource blocks corresponding to the phase tracking reference signal The third indication information is sent to the terminal device, where the third indication information is used to indicate a modulation coding mode threshold corresponding to the determined phase tracking reference signal pattern and/or a threshold number of scheduling resource blocks corresponding to the phase tracking reference signal. .

Optionally, in an implementation manner of the first aspect, the third indication information is radio resource control signaling.

Optionally, in an implementation manner of the first aspect, before determining the pattern of the phase tracking reference signal, the method further includes: receiving fourth indication information sent by the terminal device, where the fourth indication information is used. And indicating a modulation coding mode threshold corresponding to the phase tracking reference signal pattern requested by the terminal device, a threshold number of scheduling resource blocks corresponding to the phase tracking reference signal requested by the terminal device, and phase noise of the terminal device being received by the terminal device At least one of the influence factors of the signal.

Optionally, in an implementation manner of the first aspect, the fourth indication information is a modulation coding mode threshold corresponding to the phase tracking reference signal pattern requested by the terminal device, and the current phase tracking reference signal pattern of the terminal device a difference between a corresponding modulation coding mode threshold or a modulation coding mode threshold corresponding to the phase tracking reference signal pattern requested by the terminal device and a modulation coding mode threshold corresponding to the phase tracking reference signal pattern preconfigured by the terminal device Indicating a modulation coding mode threshold corresponding to the phase tracking reference signal pattern; or

The fourth indication information is obtained by the terminal device, the difference between the threshold number of the scheduling bandwidth resource block corresponding to the phase tracking reference signal pattern and the threshold number of the scheduling resource block corresponding to the current phase tracking reference signal pattern of the terminal device or the terminal The difference between the threshold number of the scheduling resource block corresponding to the phase tracking reference signal pattern requested by the device and the threshold of the number of scheduling resource blocks corresponding to the phase tracking reference signal pattern preconfigured by the terminal device to indicate the scheduling corresponding to the phase tracking reference signal pattern The number of resource blocks is limited.

Optionally, in an implementation manner of the first aspect, before the receiving the fifth indication information sent by the terminal device, the method further includes: sending, by the terminal device, a fifth indication message, where the fifth indication message is used by Instructing the first resource, the first resource is used by the terminal device to send, to the network device, a modulation and coding mode threshold corresponding to the phase tracking reference signal pattern requested by the terminal device, and the phase tracking reference signal requested by the terminal device Scheduling a threshold number of resource blocks and at least one of a factor of influence of phase noise of the terminal device on a signal received by the terminal device.

Optionally, in an implementation manner of the first aspect, before the sending the first message to the terminal device, the method further includes: receiving, by the terminal device, sixth indication information, where the sixth indication information is used. The terminal device requests the first resource from the network device.

Optionally, in an implementation manner of the first aspect, the network device sends, to the terminal device, seventh indication information, where the seventh indication information is used to indicate the modified phase that the network device sends to the terminal device. Tracking the threshold of the modulation coding mode corresponding to the reference signal and/or the effective time of the threshold of the number of scheduling resource blocks corresponding to the corrected phase tracking reference signal, the effective time may be the phase tracking reference of the terminal device after receiving the correction The time period after the threshold of the modulation coding mode corresponding to the signal and/or the corrected number of scheduling resource blocks corresponding to the phase tracking reference signal may be a time slot and/or a subframe and/or a frame.

The second aspect provides a method for wireless communication, including: the terminal device sends first indication information to the network device, where the first indication information is used to indicate a modulation coding mode threshold corresponding to the phase tracking reference signal pattern requested by the terminal And at least one of a threshold of a number of scheduling resource blocks corresponding to the phase tracking reference signal requested by the terminal, and an influence factor of the phase noise of the terminal device on the signal received by the terminal device; receiving a phase tracking reference sent by the network device signal.

Therefore, the threshold of the modulation and coding mode corresponding to the phase tracking reference signal pattern requested by the terminal, the threshold number of the scheduling resource block corresponding to the phase tracking reference signal requested by the terminal, and the phase noise pair of the terminal device are sent by the terminal device to the network device. The at least one of the impact factors of the signal received by the terminal device is used by the network device according to the modulation coding mode threshold corresponding to the phase tracking reference signal pattern requested by the terminal, and the scheduling resource corresponding to the phase tracking reference signal requested by the terminal a block number threshold, and at least one of a factor of influence of the phase noise of the terminal device on the signal received by the terminal device, and a modulation coding mode of the current network device scheduling terminal and a resource block of the current network device scheduling terminal At least one of determining a pattern of the phase tracking reference signal, realizing configuration of a flexible phase tracking reference signal pattern of different terminal devices in different modulation and coding modes and/or different scheduling bandwidths, ensuring phase noise error compensation performance while reducing Phase tracking reference letter The overhead of the number increases the efficiency of the spectrum.

Optionally, in an implementation manner of the second aspect, the first indication information is a number of a table of a modulation and coding mode threshold corresponding to the phase tracking reference signal pattern, and/or a corresponding to the phase tracking reference signal pattern. The number of the table in which the number of resource blocks is scheduled.

Optionally, in an implementation manner of the second aspect, the first indication information is a number of a parameter associated with a modulation coding mode threshold corresponding to the phase tracking reference signal pattern, and/or a phase tracking reference signal pattern The number of the corresponding parameter of the corresponding number of scheduling resource block thresholds.

Optionally, in an implementation manner of the second aspect, before receiving the phase tracking reference signal sent by the network device, the method further includes: receiving, by the network device, second indication information, where The second indication information is used to indicate a modulation coding mode threshold corresponding to the corrected phase tracking reference signal pattern and/or a threshold number of scheduling resource blocks corresponding to the corrected phase tracking reference signal;

Determining, according to the second indication information, a modulation coding mode threshold corresponding to the corrected phase tracking reference signal pattern and/or a threshold number of scheduling resource blocks corresponding to the modified phase tracking reference signal;

And a modulation coding mode threshold corresponding to the modified phase tracking reference signal pattern and/or a threshold number of scheduling resource blocks corresponding to the modified phase tracking reference signal, and a modulation coding mode of the network device scheduling terminal And/or the resource block of the current network device scheduling terminal determines a time domain and/or a frequency domain density of the phase tracking reference signal.

Optionally, in an implementation manner of the second aspect, the second indication information is radio resource control signaling RRC.

Optionally, in an implementation manner of the second aspect, the impact factor of the phase noise of the terminal device on the signal received by the terminal device includes at least one of the following parameters:

Common phase noise, inter-subcarrier interference, mean of statistical distribution of the common phase noise obey, variance of statistical distribution obeyed by the common phase noise, mean of statistical distribution of inter-subcarrier interference obey, and the subcarrier The variance of the statistical distribution of interfering interference.

Optionally, in an implementation manner of the second aspect, a mapping relationship between an interval range of the impact factor and an index sequence of the impact factor is stored between the network device and the terminal device, where The network device sends an influence factor of the phase noise of the terminal device to the signal received by the terminal device, and includes: sending an index sequence number of the impact factor to the network device.

Optionally, in an implementation manner of the second aspect, the method further includes: receiving, by the network device, third indication information, where the third indication information is used to indicate the determined phase tracking reference signal a modulation coding mode threshold corresponding to the pattern and/or a threshold number of scheduling resource blocks corresponding to the phase tracking reference signal;

Determining, according to the third indication information, a modulation coding mode threshold corresponding to the determined phase tracking reference signal pattern and/or a threshold number of scheduling resource blocks corresponding to the phase tracking reference signal;

Determining the phase tracking reference according to the modulation coding mode threshold corresponding to the determined phase tracking reference signal pattern and/or the threshold number of scheduling resource blocks corresponding to the phase tracking reference signal, and the scheduled modulation coding mode and/or bandwidth. The time domain density and/or frequency domain density of the signal.

Optionally, in an implementation manner of the second aspect, the modulation coding mode threshold corresponding to the phase tracking reference signal pattern requested by the terminal device, and the scheduling corresponding to the phase tracking reference signal requested by the terminal device Before the resource block number threshold and the phase noise of the terminal device affect at least one of the signals received by the terminal device, the method further includes:

Receiving, by the network device, fourth indication information, where the fourth indication information is used to indicate a first resource, where the first resource is used by the terminal device to send, by the terminal device, the phase tracking requested by the terminal device a modulation coding mode threshold corresponding to the reference signal pattern, a threshold number of scheduling resource blocks corresponding to the phase tracking reference signal requested by the terminal device, and an influence factor of phase noise of the terminal device on a signal received by the terminal device At least one of them.

Optionally, in an implementation manner of the second aspect, before the receiving the first indication information sent by the network device, the method further includes: sending, to the network device, fifth indication information, where The fifth indication information is used by the terminal device to request the first resource from the network device.

Optionally, in an implementation manner of the second aspect, the terminal device receives the sixth indication information that is sent by the network device, where the sixth indication information is used to indicate that the network device sends the modified information to the terminal device The threshold of the modulation and coding mode corresponding to the phase tracking reference signal and/or the effective time of the threshold of the number of scheduling resource blocks corresponding to the corrected phase tracking reference signal, the effective time may be the phase tracking of the terminal device after receiving the correction The threshold of the modulation coding mode corresponding to the reference signal and/or the corrected time period after the threshold number of the number of scheduling resource blocks corresponding to the phase tracking reference signal. The unit of time may be a time slot and/or a subframe and/or a frame.

In a third aspect, a network device is provided, comprising: a determining module and a sending module, which can perform the method in any of the optional implementations of the first aspect or the first aspect.

A fourth aspect provides a terminal device, comprising: a sending module and a receiving module, which can perform the method in any of the optional implementations of the second aspect or the second aspect.

In a fifth aspect, a network device is provided, comprising a memory, a transceiver, and a processor, the memory having program code for indicating execution of any optional implementation of the first or first aspect described above, The device is configured to perform specific signal transceiving under the driving of the processor, and when the code is executed, the processor may implement the method in which the terminal device performs various operations.

In a sixth aspect, a terminal device is provided, comprising a memory, a transceiver, and a processor, wherein the memory stores program code that can be used to indicate that any optional implementation of the second or second aspect described above is performed, The device is configured to perform specific signal transceiving under the driving of the processor, and when the code is executed, the processor may implement the method in which the terminal device performs various operations.

In a seventh aspect, a computer storage medium is provided, the program storage code being stored in the computer storage medium, the program code being operative to indicate a method of performing the above first aspect or any optional implementation of the first aspect .

In an eighth aspect, a computer storage medium is provided, wherein the computer storage medium stores program code, and the program code can be used to indicate a method in performing any of the foregoing second aspect or any optional implementation of the second aspect .

In a ninth aspect, a communication chip is provided in which instructions are stored that, when run on a network device or terminal, cause the network device or terminal to perform the methods described in the above aspects.

DRAWINGS

1 is a schematic diagram of a communication system, a network device, and a communication system of a terminal device according to the present application.

2 is a schematic flow chart of a method of wireless communication in accordance with the present application.

3 is a schematic diagram of a terminal device hierarchical group reporting table number according to the present application.

Figure 4 is a schematic diagram of different PTRS patterns.

FIG. 5 is a schematic flowchart of a method of wireless communication according to the present application.

6 is a schematic flow chart of a method of wireless communication in accordance with the present application.

Figure 7 is a schematic block diagram of a communication device in accordance with the present application.

Figure 8 is a schematic block diagram of a communication device in accordance with the present application.

9 is a schematic block diagram of a communication device in accordance with the present application.

detailed description

The technical solutions in the present application will be described below with reference to the accompanying drawings.

1 is a schematic diagram of a communication system using a method and apparatus for wireless communication of the present application. As shown in FIG. 1, the communication system 100 includes a network device 102, which may include multiple antennas, such as antennas 104, 106, 108, 110, 112, and 114. Additionally, network device 102 may additionally include a transmitter chain and a receiver chain, as will be understood by those of ordinary skill in the art, which may include multiple components related to signal transmission and reception (eg, processor, modulator, multiplexer) , demodulator, demultiplexer or antenna, etc.).

Network device 102 can communicate with a plurality of terminal devices, such as terminal device 116 and terminal device 122. However, it will be appreciated that network device 102 can communicate with any number of target terminal devices similar to terminal device 116 or 122.

As shown in FIG. 1, terminal device 116 is in communication with antennas 112 and 114, wherein antennas 112 and 114 transmit information to terminal device 116 over forward link 118 and receive information from terminal device 116 over reverse link 120. In addition, terminal device 122 is in communication with antennas 104 and 106, wherein antennas 104 and 106 transmit information to terminal device 122 over forward link 124 and receive information from terminal device 122 over reverse link 126.

For example, in a Frequency Division Duplex (FDD) system, for example, the forward link 118 can use a different frequency band than the reverse link 120, and the forward link 124 can be used differently than the reverse link 126. Frequency band.

As another example, in a Time Division Duplex (TDD) system and a Full Duplex system, the forward link 118 and the reverse link 120 can use a common frequency band, a forward link 124, and a reverse link. Link 126 can use a common frequency band.

Each antenna (or set of antennas consisting of multiple antennas) and/or regions designed for communication is referred to as a sector of network device 102. For example, the antenna group can be designed to communicate with terminal devices in sectors of the network device 102 coverage area. In the process in which network device 102 communicates with terminal devices 116 and 122 via forward links 118 and 124, respectively, the transmit antenna of network device 102 may utilize beamforming to improve the signal to noise ratio of forward links 118 and 124. In addition, when the network device 102 uses beamforming to transmit signals to the randomly dispersed terminal devices 116 and 122 in the relevant coverage area, the network device 102 uses a single antenna to transmit signals to all of its terminal devices. Mobile devices are subject to less interference.

At a given time, network device 102, terminal device 116, or terminal device 122 may be a wireless communication transmitting device and/or a wireless communication receiving device. When transmitting data, the wireless communication transmitting device can encode the data for transmission. In particular, the wireless communication transmitting device may acquire (eg, generate, receive from other communication devices, or store in memory, etc.) a certain number of target data bits to be transmitted to the wireless communication receiving device over the channel. Such data bits may be included in a transport block (or multiple transport blocks) of data that may be segmented to produce multiple code blocks.

In addition, the communication system 100 may be a public land mobile network (PLMN) network or a D2D (Device to Device) network or a M2M (Machine to Machine) network or other network. FIG. 1 is only a simplified schematic diagram of an example. Other network devices may also be included in the network, which are not shown in FIG.

Optionally, in the present application, the network device may be a device that communicates with the terminal device, for example, a network device or a network device controller, and the like. Each network device can provide communication coverage for a specific geographic area, and can communicate with terminal devices (eg, UEs) located within the coverage area (cell), the network device can support different standard communication protocols, or can support different Communication mode. For example, the network device may be a GSM system or a network device (Base Transceiver Station, BTS) in a CDMA system, or may be a network device (NodeB, NB) in a WCDMA system, or may be an evolved network in an LTE system. A device (Evolutional Node B, eNB or eNodeB), or a wireless controller in a Cloud Radio Access Network (CRAN), or the network device may be a network device in a future 5G network, such as a gNB or a small station. The TRP (transmission reception point) may also be a relay station, an access point, or a network device in a publicly available Public Land Mobile Network (PLMN).

Optionally, in the present application, the terminal device may refer to an access terminal, a user equipment (User Equipment, UE), a subscriber unit, a subscriber station, a mobile station, a mobile station, a remote station, a remote terminal, a mobile terminal, a user terminal, Terminal, wireless communication device, user agent or user device. The access terminal may be a cellular phone, a cordless phone, a Session Initiation Protocol (SIP) phone, a Wireless Local Loop (WLL) station, a Personal Digital Assistant (PDA), with wireless communication. Functional handheld devices, computing devices or other processing devices connected to wireless modems, in-vehicle devices, wearable devices, terminal devices in the Internet of Things, virtual reality devices, terminal devices in future 5G networks, or future evolved public land mobile networks Terminal equipment in the (Public Land Mobile Network, PLMN).

The method and device for wireless communication provided by the present application can be applied to a terminal device, which includes a hardware layer, an operating system layer running on the hardware layer, and an application layer running on the operating system layer. The hardware layer includes hardware such as a central processing unit (CPU), a memory management unit (MMU), and a memory (also referred to as main memory). The operating system may be any one or more computer operating systems that implement business processing through a process, such as a Linux operating system, a Unix operating system, an Android operating system, an iOS operating system, or a Windows operating system. The application layer includes applications such as a browser, an address book, word processing software, and instant messaging software.

Furthermore, various aspects or features of the present application can be implemented as a method, apparatus, or article of manufacture using standard programming and/or engineering techniques. The term "article of manufacture" as used in this application encompasses a computer program accessible from any computer-readable device, carrier, or media. For example, the computer readable medium may include, but is not limited to, a magnetic storage device (eg, a hard disk, a floppy disk, or a magnetic tape, etc.), such as a compact disc (CD), a digital versatile disc (Digital Versatile Disc, DVD). Etc.), smart cards and flash memory devices (eg, Erasable Programmable Read-Only Memory (EPROM), cards, sticks or key drivers, etc.). Additionally, various storage media described herein can represent one or more devices and/or other machine-readable media for storing information. The term "machine-readable medium" may include, but is not limited to, a variety of media capable of storing, containing, and/or carrying instructions and/or data.

For a better understanding of the present application, the present application will be described below with reference to FIGS. 2-9, with the same or similar system as the system shown in FIG.

2 is a schematic flow diagram of a method 200 of wireless communication in accordance with the present application. As shown in FIG. 2, the method 200 includes the following.

In 210, the threshold of the modulation coding mode corresponding to the phase tracking reference signal pattern requested by the terminal device, the threshold number of the scheduling resource block corresponding to the phase tracking reference signal pattern requested by the terminal device, and the phase noise of the terminal device Determining a pattern of the phase tracking reference signal by at least one of an influence factor of the signal received by the terminal device, and at least one of a modulation coding mode of the current network device scheduling terminal device and a bandwidth of the network device scheduling terminal device .

Optionally, before determining the pattern of the phase tracking reference signal, the method further includes: the network device sending a modulation coding mode threshold corresponding to the phase tracking reference signal pattern requested by the terminal device, and the terminal device requests the The phase tracking reference signal pattern corresponds to a threshold number of scheduling resource blocks, and at least one of a factor of influence of the phase noise of the terminal device on the signal received by the terminal device.

Optionally, the terminal device proposes a modulation coding mode threshold and/or a scheduling resource block number threshold indicating a PTRS presence/pattern.

Optionally, the modulation coding mode threshold and the resource block number threshold may be represented by (M+N) bits, where M is used to indicate a current representation threshold, and N is a threshold. When the threshold is the modulation coding mode threshold corresponding to the phase tracking reference signal pattern, the required bits of M depend on the total number of modulation and coding mode thresholds. In the current LTE system, the modulation coding mode threshold is 0 to 28, a total of 29 bits. Therefore M requires 5 bits. The number of N thresholds is determined. If the MCS is set to three thresholds, they are respectively

with

Then N needs a bit of 2. If the threshold of the modulation and coding mode sent by the terminal device is (01111+01), it indicates that the third threshold is 16. If all three thresholds need to be fed back, the modulation coding mode threshold can also be expressed as (M+M+M). If only a part of the threshold needs to be updated, the specific updated threshold and which MCS threshold can be indicated in the form of (M+N).

When the pre-threshold is the threshold of the number of resource blocks corresponding to the phase tracking reference signal pattern, the number of bits required by M depends on the number of resource blocks RB. In the current LTE system, the number of the maximum scheduling resource blocks is 100 RBs. Therefore, M needs 7 bits, and the value of N is determined by the number of thresholds for scheduling the number of resource blocks.

It should be understood that the values of M and N can be adjusted according to actual conditions.

It should also be understood that the modulation coding mode threshold and the resource block number threshold may have other representations, which are not limited in this application.

Optionally, the threshold of the modulation coding mode corresponding to the phase tracking reference signal pattern requested by the network device, the threshold of the number of scheduling resource blocks corresponding to the phase tracking reference signal pattern requested by the terminal device, and the phase of the terminal device Determining at least one of a factor of influence of the noise on the signal received by the terminal device, and at least one of a modulation coding mode of the network device currently scheduling the terminal device and a bandwidth of the current network device scheduling the terminal device Before the phase tracking the pattern of the reference signal, the method further includes:

The network device receives the number of the table of the modulation coding mode threshold corresponding to the phase tracking reference signal pattern transmitted by the terminal device and/or the number of the table related to the threshold number of scheduling resource blocks corresponding to the phase tracking reference signal pattern.

For example, the table number of the modulation and coding mode threshold corresponding to the phase tracking reference signal pattern is 0 to 11, and the terminal device reports 1 to the network device, indicating a modulation coding mode threshold corresponding to the phase tracking reference signal pattern requested by the terminal device. The form number is 1.

For another example, the table of modulation coding mode thresholds corresponding to the phase tracking reference signal pattern may adopt a packet numbering manner. Tables 0 through 3 are the first group, tables 4 through 7 are the second group, and tables 8 through 11 are the third group. When the table number of the modulation and coding mode threshold corresponding to the phase tracking reference signal pattern requested by the terminal device is 3, the table of the modulation coding mode threshold sent to the network device is numbered 1+4, where 1 indicates the first Group, 4 represents the fourth table of the first group.

It should be understood that the manner in which the terminal device reports the table number of the modulation and coding mode threshold corresponding to the phase tracking reference signal pattern is only used as an example. The terminal device may report the table number of the modulation and coding mode threshold corresponding to the phase tracking reference signal pattern. There are other ways, and this application does not limit this.

It should be understood that the manner in which the terminal device reports the number of the table of the threshold number of the number of the scheduling resource blocks corresponding to the phase tracking reference signal pattern may refer to the table number of the modulation coding mode threshold corresponding to the phase tracking reference signal pattern. Way, in order to avoid duplication, I will not repeat them here.

Optionally, the threshold of the modulation coding mode corresponding to the phase tracking reference signal pattern requested by the network device, the threshold of the number of scheduling resource blocks corresponding to the phase tracking reference signal pattern requested by the terminal device, and the phase of the terminal device Determining at least one of a factor of influence of the noise on the signal received by the terminal device, and at least one of a modulation coding mode of the network device currently scheduling the terminal device and a bandwidth of the current network device scheduling the terminal device Before the phase tracking the pattern of the reference signal, the method further includes:

Receiving, by the network device, a number of a parameter associated with a modulation coding mode threshold corresponding to the phase tracking reference signal pattern sent by the terminal device, and/or a parameter number associated with a threshold number of scheduling resource blocks corresponding to the phase tracking reference signal pattern ;

Determining, according to a number of a parameter associated with a modulation coding mode threshold corresponding to the phase tracking reference signal pattern sent by the terminal device, and/or a parameter number associated with a threshold number of scheduling resource blocks corresponding to the phase tracking reference signal pattern. The modulation coding mode threshold corresponding to the phase tracking reference signal pattern requested by the terminal device, and the threshold number of scheduling resource blocks corresponding to the phase tracking reference signal pattern requested by the terminal device.

Optionally, the parameter associated with the modulation coding mode threshold corresponding to the phase tracking reference signal pattern and/or the parameter associated with the modulation coding mode threshold corresponding to the phase tracking reference signal pattern includes at least one of the following parameters: Frequency point, phase noise model of the terminal device, subcarrier spacing, and the ability of the receiver to process phase noise.

Specifically, because the phase noise levels of the phase noise models of different frequency points and different terminal devices are different, the capability of different subcarriers and different receivers to resist phase noise is different, so the pattern of phase tracking reference signals required by the terminal device is not Similarly, the modulation coding mode threshold corresponding to the phase tracking reference signal pattern is different from the modulation coding mode threshold corresponding to the phase tracking reference signal pattern, so the terminal device can suggest or report to the network device corresponding to the phase tracking reference signal pattern. The number of the parameter associated with the modulation coding mode threshold and/or the number of the parameter associated with the threshold number of scheduling resource blocks corresponding to the phase tracking reference signal pattern. The parameter number corresponds to a corresponding parameter and a modulation coding mode threshold corresponding to the phase tracking reference signal pattern or a threshold number of scheduling resource blocks corresponding to the phase tracking reference signal pattern.

It should be understood that the time domain density and the frequency domain density correspond to different parameter numbers. Because the frequency, phase noise model, subcarrier spacing, and receiver's ability to process phase noise have different effects on time domain density and frequency domain density, the numbering of the two can be independent. For example, the time domain density and MCS correlation parameter number are 0 to K1, the associated parameter number of the frequency domain density and BW is 0 to K2.

Optionally, the terminal device may uniformly report the multiple parameters to the network device.

Specifically, the number of all parameter combinations is represented by N bits, where N = ceil(log2(M)), where M represents the total number of parameter combinations. The solution can reduce the load of the terminal device suggestion or report content, and can reduce the signaling overhead of the base station configuration association table.

For example, as shown in Table 1, each parameter combination number in Table 1 corresponds to a different parameter, and each parameter table number corresponds to one MCS threshold table and/or resource block number threshold table. When the terminal device sends "000" to the network device, it indicates that the parameter combination number is 0, and the MCS threshold and/or the number of resource block thresholds requested by the terminal device may be determined according to the parameter combination number, such as the MCS corresponding to the parameter combination number 1. If the threshold table number is 1, the parameter combination number 1 reported by the UE can be understood as the MCS threshold corresponding to the recommended MCS threshold table No. 1.

Table 1

Signaling content	Form number or parameter combination number	instruction manual
000	0	30G 60k phase noise model 1
001	1	30G 60k phase noise model 2
010	2	30G 120k phase noise model 1
011	3	30G 120k phase noise model 2
100	4	40G 120k phase noise model 1
101	5	40G 120k phase noise model 2
110	6	70G 480k phase noise model 1
111	7	70G 480k phase noise model 2

Optionally, the terminal device may separately report the multiple parameters to the network device.

Specifically, the individual numbering means that each parameter is separately numbered, for example, the number of specific parameter combinations is represented by N1+N2+N3+... bits, and Ni represents the number of bits required for the number of one input factor, such as N1=2 The bit indicates the number corresponding to the frequency point, the number corresponding to the subcarrier spacing is represented by N2 = 3 bits, the number of the phase noise model is represented by N3 = 2 bits, and the ability of the receiver to process the phase noise is represented by N4 = 1 bit.

The optimal association table corresponding to each parameter (a table of the correspondence between the real-time domain density and the MCS, a table including the MCS threshold of each time domain density, and/or a correspondence between the frequency domain density and the number of scheduling resource blocks, including each frequency domain The threshold of the number of scheduling resource blocks of the density can be separately suggested/reported by the terminal device, and the network device is separately configured, and the flexibility is high. When the parameter changes, for example, when the subcarrier spacing is changed from 60k to 120k, the terminal device can only recommend/report. The number corresponding to the subcarrier, the network device may only configure its corresponding bit, that is, the bit corresponding to the subcarrier, to complete the reselection of the association table; in addition, the scheme may also reuse some signaling for other functions, such as subcarrier spacing, Frequency points, etc., and based on the known subcarriers and frequency points of the network device, if only frequency points or subcarriers are switched, the terminal device does not need to be re-recommended.

For example, as shown in Table 2, in signaling, the first two bits represent the frequency point {30G, 40G, 70G, reserved}, and the middle two bits represent the subcarrier spacing {60k, 120k, 240k, 480k}, the last one. The bit represents the phase noise model {phase noise model 1, phase noise model 2}.

Table 2

Signaling content	Form number or parameter combination number		instruction manual
00+00+0	0	30G 60k phase noise model 1
00+00+1	1	30G 60k phase noise model 2
00+01+0	2	30G 120k phase noise model 1
00+01+1	3	30G 120k phase noise model 2
...+...+...	...	air
01+01+0	10	40G 120k phase noise model 1
01+01+1	11	40G 120k phase noise model 2
...+...+...	...	air
10+11+0	twenty two	70G 480k phase noise model 1
10+11+1	twenty three	70G 480k phase noise model 2
...+...+...	...	air

For example, the individual number can also be expressed in the form of a hierarchical grouping, for example, as shown in FIG. 3, the frequency point represents the first level, the subcarrier represents the second level, and the phase noise model represents the third level. In FIG. 3, the frequency point is divided. 30G, 40G, 70G, sub-set 1 with sub-carrier 60k and sub-set 2 with sub-carrier 120k at frequency 30G, and phase noise model 1 under sub-set 1 with sub-carrier 60k And phase noise model 2, the sub-carriers with sub-carriers of 120k are divided into phase noise model 1 and phase noise model 2. When the terminal device reports 00000, the network device may determine, according to the reported content, an MCS threshold and/or a resource block threshold threshold requested by the terminal device.

Optionally, the terminal device may separately number the first part of the plurality of parameters, or report the second part of the multiple parameters to the network device. For example, the terminal device uniformly numbers the phase noise and the phase noise model of the terminal device receiver, and separately numbers the frequency points and subcarriers.

Optionally, the terminal device sends, to the network device, a table number of a modulation and coding mode threshold corresponding to the phase tracking reference signal pattern according to different configuration periods or different configuration trigger conditions, and/or corresponds to the phase tracking reference signal pattern. The table number of the threshold number of scheduling resource blocks.

Optionally, the terminal device reports the phase noise model number or the phase noise level number of the terminal device to the network device, and the terminal device reports the phase noise model number or phase noise level number of the terminal device to the network device as the The capability of the terminal device is reported.

Optionally, the terminal device reports the resistance of the terminal device to the phase noise to the network device, and the resistance of the terminal device to the phase noise needs to comprehensively consider the phase noise, the algorithm of the receiver of the terminal device, and the The phase noise model of the terminal device, etc.; the number of the terminal device that reports the resistance of the terminal device to the phase noise can be reported as the capability of the terminal device.

It should be understood that the table number or parameter combination number mentioned in the above description may also be an index.

Optionally, the terminal device may send, by using an RRC report, a modulation coding mode threshold corresponding to the phase tracking reference signal pattern requested by the terminal device to the network device, and a scheduling resource block corresponding to the phase tracking reference signal pattern requested by the terminal device. a number threshold, and at least one of a factor of influence of phase noise of the terminal device on a signal received by the terminal device.

Optionally, the terminal device sends, to the network device, a difference of a modulation and coding mode threshold corresponding to the phase tracking reference signal pattern, where the difference is a modulation coding mode threshold corresponding to the phase tracking reference signal pattern requested by the terminal device, and the terminal The difference between the modulation and coding mode thresholds corresponding to the current phase tracking reference signal pattern of the device; or

The terminal device sends, to the network device, a difference of a threshold number of the number of scheduling resource blocks corresponding to the phase tracking reference signal pattern, where the difference is a threshold number of the scheduling resource block corresponding to the phase tracking reference signal pattern requested by the terminal device, and the current terminal device The phase tracking reference signal pattern corresponds to a difference in the threshold number of scheduling resource blocks. Optionally, the influence factor of the phase noise of the terminal device on the signal received by the terminal device includes at least one of the following parameters: common phase noise, inter-subcarrier interference, and statistical distribution of the common phase noise obey The mean of the mean, the variance of the statistical distribution obeyed by the common phase noise, the mean of the statistical distribution of interference between the subcarriers, and the variance of the statistical distribution of interference between the subcarriers.

Specifically, the influence factor of the phase noise of the terminal device on the signal received by the terminal device includes a common phase error and/or inter-subcarrier interference due to phase noise. The common phase error and inter-subcarrier interference are random numbers, which are consistent with a certain statistical distribution, so the statistical characteristics of the impact factor, such as variance or mean, can be fed back.

Optionally, a mapping relationship between the range of the impact factor and the index sequence of the impact factor is stored between the network device and the terminal device, and the phase noise pair of the terminal device is sent to the network device. The impact factor of the signal received by the terminal device includes: sending an index sequence number of the impact factor to the network device.

Specifically, if the direct impact of the impact factor or the statistical feature of the impact factor occupies more resources, the statistical factor of the impact factor or the impact factor may be respectively mapped to the index sequence, and the feedback may be directly sent to the network device. The index number of the impact factor or the index number of the statistical feature of the impact factor. As shown in Table 1, when the variance of the common phase error is within δ ₁ , the index number 1 is transmitted to the network device.

It should be understood that Table 3 is only an example of the feedback factor of the terminal device to the network device. In the actual case, the total number of index numbers may be set, which is not limited in this application.

Table 3: Mapping of impact factors and feedback content

δ	δ 1	δ 2	δ 3	δ 4	δ 5	δ 6	δ 7
Common phase error index number	1	2	3	4	5	6	7

Optionally, the determining, by the network device, the pattern of the phase tracking reference signal comprises: determining, according to a modulation coding mode threshold corresponding to the phase tracking reference signal pattern requested by the terminal device, and a currently scheduled modulation coding mode, determining the phase tracking reference The time domain density of the signal.

Specifically, under the threshold of the Modulation and Coding Scheme (MCS), the modulation and coding mode may implicitly indicate the time domain density of the Phase Tracking Reference Signal (PTRS), as shown in Table 4. Shown. The time domain density of the phase tracking reference signal of the terminal in the current scheduling state may be determined according to the threshold of the MCS corresponding to the determined phase tracking reference signal pattern and the currently scheduled modulation coding mode.

Table 4 Relationship between MCS and PTRS time domain density

The relationship between the threshold of the modulation coding mode and the time domain density of the phase tracking reference signal may also be expressed in the form of a formula, as shown in equation (1):

Where DT represents the time domain density.

It should be understood that Table 4 and Equation (1) are only examples of the relationship between the MCS threshold and the PTRS time domain density. The relationship between the MCS threshold and the PTRS time domain density may also be other manifestations. The application is not limited. The time domain density in Table 4 and Equation (1) is also only an example, and may also be one symbol, every two symbols, one PTRS or the like for every four symbols, or other expressions. limited.

Optionally, the network device determines a time domain density of the phase tracking reference signal according to a modulation coding mode threshold corresponding to the phase tracking reference signal pattern requested by the terminal device, and a currently scheduled modulation coding mode, including:

Correcting a modulation coding mode threshold corresponding to the phase tracking reference signal pattern according to the phase noise of the network device; determining the phase according to the modified modulation coding mode threshold corresponding to the phase tracking reference signal pattern and the currently scheduled modulation coding mode Track the time domain density of the reference signal.

Specifically, when the network device receives the modulation and coding mode threshold corresponding to the phase tracking reference signal pattern requested by the terminal device, the phase noise power spectral density of the network device is high, and the phase noise has a greater influence on the signal. The MCS threshold corresponding to the phase tracking reference signal pattern requested by the terminal device is high, and the network device corrects the MCS threshold corresponding to the phase tracking reference signal pattern requested by the network device for communication reliability, and reduces the MCS threshold. The device determines the time domain density of the phase tracking reference signal according to the modified modulation and coding mode threshold corresponding to the phase tracking reference signal pattern and the currently scheduled modulation and coding mode.

Optionally, before the sending the phase tracking reference signal to the terminal device according to the pattern of the phase tracking reference signal, the method further includes: when the network device corrects the phase tracking reference signal pattern When the corresponding modulation and coding mode threshold is used, the first indication information is sent to the terminal device, where the first indication information is used to indicate a threshold of a modulation and coding mode corresponding to the corrected phase tracking reference signal pattern; or

When the network device does not modify the modulation and coding mode threshold corresponding to the phase tracking reference signal pattern, the first indication information is sent to the terminal device, where the first indication information is acknowledgement information.

Specifically, if the phase noise power spectral density of the network device is large, the phase noise has a large influence on the signal, and the network device corrects a modulation coding mode threshold corresponding to the phase tracking reference signal pattern requested by the terminal, where The network device sends the first indication information to the terminal to indicate a modulation coding mode threshold corresponding to the corrected phase tracking reference signal pattern; if the phase noise power spectral density of the network device is ideal, the phase noise has no influence on the signal or the influence is negligible The network device does not modify the modulation and coding mode threshold corresponding to the phase tracking reference signal pattern requested by the terminal, and the network device sends the first indication information to the terminal device, where the first indication information is confirmation information, where the An indication information may be RRC signaling.

It should be understood that the information representation form of the modulation coding mode threshold may be in the form of (M+N) or (M+M+M), and the specific method is similar to the information representation form of the modulation coding mode threshold fed back by the terminal, in order to Avoid repetition, no more details here.

Optionally, the first indication information is sent to the terminal device, where the first indication information is used to indicate a threshold of a modulation and coding mode corresponding to the corrected phase tracking reference signal pattern, including:

The first indication information is indicated by a difference between a modulation coding mode threshold corresponding to the corrected phase tracking reference signal pattern and a modulation coding mode threshold corresponding to the phase tracking reference signal pattern requested by the terminal device. The corrected phase tracking reference signal pattern corresponds to a modulation coding mode threshold.

Specifically, the network device may send, to the terminal device, a difference between a modulation coding mode threshold corresponding to the modified phase tracking reference signal pattern and a modulation coding mode threshold corresponding to the phase tracking reference signal pattern requested by the terminal device. value. The threshold corresponding to the phase tracking reference signal pattern requested by the terminal device is

The network device adjusts the threshold corresponding to the phase tracking reference signal pattern of the request to

The network device will

The difference is sent to the terminal device by using the first indication information.

Optionally, the first indication information may be a table number that is requested or reported by the terminal device and is a threshold of the modulation and coding mode.

Optionally, the first indication information may be a difference between a table number and a given number that is requested or reported by the terminal device and is a threshold of the modulation and coding mode. The given number may be the default configuration number of the table of the modulation coding mode threshold or the last configured number.

Optionally, the first indication information may be a modified table number with the modulation coding mode threshold.

Specifically, if the phase noise of the network device is large, based on the number suggested by the terminal device or the capability reported by the terminal device, the phase noise of the network device is considered, and the optimal table is selected. Numbering.

The first indication information may be a number of a parameter associated with the modulation coding mode threshold that is requested or reported by the terminal device.

Optionally, the first indication information may be a difference between a number of a parameter associated with the modulation and coding mode threshold that is requested or reported by the terminal device and a given number. The given number may be the default configuration number of the parameter associated with the modulation coding mode threshold or the last configured number.

Optionally, the first indication information may be a number of the modified parameter associated with the modulation and coding mode threshold.

Specifically, if the phase noise of the network device is large, the phase noise of the network device side is considered, and the optimal associated parameter is selected based on the number suggested by the terminal device or the capability reported by the terminal device. The number corresponding to the numbered form.

Optionally, the determining the pattern of the phase tracking reference signal comprises: determining the phase tracking reference signal according to a threshold number of scheduling resource blocks corresponding to the phase tracking reference signal, and a bandwidth of a current network device scheduling terminal device Frequency domain density.

Specifically, under the threshold of determining the number of resource blocks, the current scheduling bandwidth may implicitly indicate the frequency domain density of the PTRS, as shown in Table 5. The frequency domain density of the phase tracking reference signal of the terminal device under the current scheduling bandwidth may be determined according to the confirmed phase tracking reference signal pattern corresponding to the resource block number threshold and the current network device scheduling the bandwidth of the terminal.

Table 5 Relationship between the threshold number of resource blocks and the density of PTRS frequency domain

The relationship between the scheduling bandwidth threshold and the frequency domain density of the phase tracking reference signal may also be in the form of a formula, as shown in equation (2):

It should be understood that Table 5 and Equation (2) are only examples of the relationship between the resource block number threshold and the PTRS frequency domain density. The relationship between the resource block number threshold and the PTRS frequency domain density may also be other. The form of expression is not limited in this application. The frequency domain density in Table 5 is only an example. It can also be expressed as one PTRS or the like for every 2 RBs, or other representations, which are not limited in this application.

The relationship between the time domain density of the PTRS and the modulation and coding scheme can be expressed by using Table 5 or Equation (2). The relationship between the frequency domain density of the PTRS and the bandwidth can be expressed by using Table 5 or Equation (2). And supporting RRC signaling to configure the modulation and coding mode threshold and/or the scheduling resource block number threshold.

Optionally, the network device determines a frequency domain density of the phase tracking reference signal according to a threshold of a number of scheduling resource blocks corresponding to the phase tracking reference signal pattern requested by the terminal device, and a bandwidth of the current network device scheduling terminal device, including: The phase noise of the network device is corrected, and the threshold of the number of scheduling resource blocks corresponding to the phase tracking reference signal pattern is corrected; and the phase tracking reference signal is determined according to the corrected threshold of the number of scheduled resource blocks and the bandwidth of the current network device scheduling terminal device. Frequency domain density.

Specifically, when the network device receives the threshold number of the scheduling resource block corresponding to the phase tracking reference signal pattern requested by the terminal device, the phase noise power spectral density of the network device is large, and the phase noise has a greater influence on the signal. The threshold of the number of the scheduling resource blocks corresponding to the phase tracking reference signal pattern requested by the network device is small, and the network device corrects the number of the scheduling resource blocks corresponding to the phase tracking reference signal pattern requested by the network device for communication reliability. a threshold, the threshold of the number of the scheduling resource blocks is increased, and the network device determines the phase tracking reference according to the threshold of the number of the scheduling resource blocks corresponding to the modified phase tracking reference signal pattern, and the bandwidth of the current network device scheduling terminal device. The frequency domain density of the signal.

Optionally, before the sending the phase tracking reference signal to the terminal device according to the pattern of the phase tracking reference signal, the method further includes: when the network device corrects the phase tracking reference signal pattern And corresponding to the threshold of the number of the scheduling resource blocks, the second indication information is sent to the terminal device, where the second indication information is used to indicate the threshold of the number of the scheduled resource blocks corresponding to the modified phase tracking reference signal pattern; or

When the network device does not modify the threshold of the number of the scheduling resource blocks corresponding to the phase tracking reference signal pattern, the second indication information is sent to the terminal device, where the second indication information is acknowledgement information.

Specifically, if the phase noise power spectral density of the network device is large, the phase noise has a large influence on the signal, and the network device corrects the threshold number of the scheduling resource block corresponding to the phase tracking reference signal pattern requested by the terminal. The network device sends the second indication information to the terminal to indicate the threshold of the number of the scheduling resource blocks corresponding to the corrected phase tracking reference signal pattern; if the phase noise power spectral density of the network device is ideal, the phase noise has no effect on the signal. Or the impact is negligible, the network device does not modify the threshold of the number of the scheduling resource blocks corresponding to the phase tracking reference signal pattern requested by the terminal, and the network device sends second indication information to the terminal device, where the second indication information To confirm the information, the second indication information may be RRC signaling.

Optionally, the sending, to the terminal device, the second indication information, where the second indication information is used to indicate a threshold of a modulation and coding mode corresponding to the corrected phase tracking reference signal pattern, including:

a difference between the threshold of the number of the scheduling resource blocks corresponding to the phase tracking reference signal pattern requested by the terminal device by the corrected modulation and coding mode threshold corresponding to the phase tracking reference signal pattern And indicating a threshold number of the scheduling resource block corresponding to the corrected phase tracking reference signal pattern.

Specifically, the network device may send, to the terminal device, the scheduled resource block threshold corresponding to the modified phase tracking reference signal pattern and the scheduling resource block corresponding to the phase tracking reference signal pattern requested by the terminal device. The difference in the number of thresholds. The threshold corresponding to the phase tracking reference signal pattern requested by the terminal device is

The network device adjusts the threshold corresponding to the phase tracking reference signal pattern of the request to

The network device will

The difference is sent to the terminal device by using the second indication information.

It should be understood that the information representation form of the threshold number of the scheduling resource block may be in the form of (M+N) or (M+M+M), and the specific method is similar to the information representation of the threshold of the number of scheduling resource blocks fed back by the terminal. In order to avoid repetition, we will not repeat them here. The PTRS is mapped when the modulation coding mode/bandwidth exceeds the modulation coding mode threshold of the terminal configuration and the threshold number of the resource block is scheduled.

Optionally, the second indication information may be a number of a parameter that is requested or reported by the terminal device and is associated with the threshold of the number of scheduled resource blocks.

Optionally, the second indication information may be a difference between a number of a parameter associated with the threshold number of the scheduled resource blocks requested or reported by the terminal device and a given number. The given number may be a default configuration number for the number of parameters associated with the threshold number of thresholds for the terminal device, or the most recently configured number.

Optionally, the second indication information may be a modified number of parameters associated with the threshold number of the scheduled resource blocks.

Specifically, if the phase noise of the network device is large, based on the number suggested by the terminal device or the capability reported by the terminal device, the phase noise of the network device is considered, and the optimal associated table is selected. Corresponding number.

Optionally, the second indication information may be a table number that is requested or reported by the terminal device and is a threshold of the number of the scheduling resource blocks.

Optionally, the second indication information may be a difference between a table number and a given number that is requested or reported by the terminal device and is a threshold of the number of the scheduling resource blocks. The given number may be the default configuration number of the table number for the threshold number of the scheduled resource blocks of the terminal device, or the last configured number.

Optionally, the second indication information may be a modified table number with a threshold of the number of scheduled resource blocks.

Specifically, if the phase noise of the network device is large, based on the number suggested by the terminal device or the capability reported by the terminal device, the phase noise of the network device is considered, and the optimal associated table is selected. Corresponding number.

Optionally, the determining the pattern of the phase tracking reference signal comprises: determining a pattern of the phase tracking reference signal according to an influence factor of a phase noise of the terminal device on a signal received by the terminal device.

Alternatively, the impact factor may be a common phase error and/or inter-subcarrier interference.

Specifically, when the network device receives the influence factor of the phase noise of the terminal device on the signal received by the terminal device, if the phase noise of the network device is ideal, the terminal device may be based on the phase noise of the terminal device. The influence factor of the signal received by the device determines a modulation coding mode threshold corresponding to the phase tracking reference signal pattern and/or a threshold number of scheduling resource blocks corresponding to the phase tracking reference signal pattern, if phase noise of the terminal device is received by the terminal device The larger the influence factor of the received signal, the greater the time domain density and/or the frequency domain density of the pattern of the phase tracking reference signal, and correspondingly increasing the modulation coding mode threshold and/or the phase corresponding to the phase tracking reference signal pattern. Tracking the threshold number of scheduling resource blocks corresponding to the reference signal pattern.

For example, the influence factor is a common phase error, and the larger the common phase error is, the greater the influence of the phase noise of the terminal device on the signal received by the terminal device is. Therefore, when the pattern of the phase tracking reference signal is increased, Domain density and/or frequency domain density.

Optionally, determining, according to an influence factor of the phase noise of the terminal device on a signal received by the terminal device, determining a pattern of the phase tracking reference signal, including: according to the terminal device and the network device a power spectral density integrated by the phase noise, and a modulation coding mode threshold and/or a bandwidth threshold of the phase tracking reference signal pattern according to an influence factor of the phase noise of the terminal device on the signal received by the terminal device, determining the The pattern of the phase tracking reference signal.

Specifically, when the network device receives the influence factor of the phase noise of the terminal device on the signal received by the terminal device, if the phase noise of the network device is relatively large, the network device should be based on the terminal device and the Determining a power spectral density of the phase noise integrated of the network device, and determining a modulation coding mode threshold and/or a bandwidth threshold of the phase tracking reference signal pattern according to an influence factor of the phase noise of the terminal device on the signal received by the terminal device Determining a pattern of the phase tracking reference signal.

Optionally, determining a pattern of the phase tracking reference signal according to a power spectral density integrated by the phase noise of the terminal device and the network device, and an influence factor of the phase noise of the terminal device on the signal received by the terminal device, including And correcting a power spectral density of the phase noise integrated by the terminal device and the network device according to an influence factor of the phase noise of the terminal device on the signal received by the terminal device; and synthesizing the modified terminal device and the network device according to the modified The power spectral density determines a modulation coding mode threshold and/or a bandwidth threshold of the phase tracking reference signal pattern, and determines a pattern of the phase tracking reference signal according to the scheduled modulation coding mode and/or bandwidth.

Optionally, determining a pattern of the phase tracking reference signal according to a power spectral density integrated by the phase noise of the terminal device and the network device, and an influence factor of the phase noise of the terminal device on the signal received by the terminal device Previously, based on the random access signal or the uplink reference signal sent by the terminal device, the power spectral density of the phase noise integrated by the terminal device and the network device is estimated.

Optionally, the network device sends third indication information to the terminal device, where the third indication information is used to indicate a modulation coding mode threshold corresponding to the phase tracking reference signal pattern and/or a scheduling resource corresponding to the phase tracking reference signal pattern. The number of blocks is limited.

Optionally, the network device sends fourth indication information to the terminal device, where the fourth indication information is used to indicate a threshold of a modulation and coding mode corresponding to the corrected phase tracking reference signal sent by the network device to the terminal device. And the corrected effective time of the threshold number of the number of scheduling resource blocks corresponding to the phase tracking reference signal pattern, where the effective time is the threshold of the modulation coding mode corresponding to the phase tracking reference signal pattern received by the terminal device And after the corrected phase tracking reference signal pattern corresponds to a period of time after the threshold number of scheduling resource blocks, the time unit may be a time slot and/or a subframe and/or a frame.

It should be understood that the effective time may also be a time agreed by the network device and the terminal device.

Optionally, the network device may not consider the table number of the modulation and coding mode threshold corresponding to the phase tracking reference signal pattern suggested or reported by the terminal device, and/or the scheduling resource block corresponding to the phase tracking reference signal pattern. a table number of the threshold, or a parameter number associated with the modulation coding mode threshold, or a parameter number associated with the threshold of the number of scheduling resource blocks, directly configured to the terminal device to correspond to the phase tracking reference signal pattern The table number of the modulation coding mode threshold and/or the table number of the threshold number of scheduling resource blocks corresponding to the phase tracking reference signal pattern.

Specifically, the terminal device has not reported the number of the relevant parameter or the table number of the modulation and coding mode threshold corresponding to the phase tracking reference signal pattern and/or the threshold number of the scheduling resource block corresponding to the phase tracking reference signal pattern. When the table number is used, such as the initialization phase; or when the reporting capability of the terminal device is inaccurate; or the capability reported on the terminal device (such as the phase noise model, the receiver algorithm) has little influence on the selection of the associated table, the network The device directly configures, to the terminal device, a table number of a modulation coding mode threshold corresponding to the phase tracking reference signal pattern and/or a table number of a threshold number of scheduling resource blocks corresponding to the phase tracking reference signal pattern.

Optionally, the network device may directly configure, to the terminal device, a modulation and coding mode threshold corresponding to the phase tracking reference signal pattern and/or a scheduling resource block threshold corresponding to the phase tracking reference signal pattern, or directly configure the phase Tracking the number of the modulation coding mode threshold corresponding to the reference signal pattern and/or the number of the scheduling resource block threshold corresponding to the phase tracking reference signal pattern.

Therefore, in the present application, the network device according to the phase tracking reference signal pattern requested by the terminal device, the modulation coding mode threshold corresponding to the phase tracking reference signal, and the threshold number of the scheduling resource block corresponding to the phase tracking reference signal requested by the terminal device, and the Determining at least one of a phase noise of the terminal device on the signal received by the terminal device, and at least one of a modulation coding mode of the current network device scheduling terminal device and a bandwidth of the current network device scheduling terminal device The phase tracking reference signal pattern realizes the configuration of flexible phase tracking reference signal patterns of different terminal devices in different modulation and coding modes and/or different scheduling bandwidths, ensures phase noise error compensation performance, and reduces phase tracking reference signals. Overhead, improving spectrum efficiency.

Figure 4 is a schematic illustration of different PTRS patterns. (a) in FIG. 4 is a schematic diagram of a current PTRS pattern, the network device according to the modulation coding mode threshold corresponding to the phase tracking reference signal pattern requested by the terminal device according to the terminal device, and the phase tracking reference signal requested by the terminal device Determining the phase by at least one of a threshold of the number of scheduling resource blocks corresponding to the pattern, and at least one of a factor of influence of the phase noise of the terminal device on the signal received by the terminal device, and at least one of a currently scheduled modulation and coding mode and bandwidth Track the pattern of the reference signal. The determined PTRS pattern may be (b) in FIG. 4 or (c) in FIG. 4. In Figure (a), the frequency domain density of PTRS is 1 (one PTRS per 12 subcarriers), the time domain density is 1, and in Figure (b), the frequency domain density of PTRS is 1 (every 12 subcarriers) There is a PTRS), the time domain density is 1/2, in Figure (c), the frequency domain density of PTRS is 1/2 (one PTRS per 24 subcarriers), the time domain density is 1, after the network The flexible adjustment of the phase tracking reference signal pattern reduces the number of subcarriers occupied by the phase tracking reference signal.

In 220, the network device transmits the phase tracking reference signal to the terminal device according to the determined pattern of the phase tracking reference signal.

At 230, the terminal device receives the phase tracking reference signal.

Therefore, in the present application, the network device is configured according to a modulation coding mode threshold corresponding to the phase tracking reference signal pattern requested by the terminal device, a threshold number of scheduling resource blocks corresponding to the phase tracking reference signal pattern requested by the terminal device, and the terminal device. Determining the phase tracking by at least one of a phase noise affecting a signal received by the terminal device, and at least one of a modulation coding mode of the current network device scheduling terminal and a resource block of the current network device scheduling terminal The pattern of the reference signal can flexibly adjust the pattern of the phase tracking reference signal during the communication process, reducing the number of subcarriers occupied by the phase tracking reference signal, and saving resource overhead.

FIG. 5 is a schematic flow diagram of a method 300 of wireless communication in accordance with the present application. As shown in FIG. 5, the method 300 includes the following.

In 310, the terminal device sends, to the network device, a modulation and coding mode threshold corresponding to the phase tracking reference signal pattern requested by the terminal device, and a threshold number of scheduling resource blocks corresponding to the phase tracking reference signal requested by the terminal device, And at least one of a factor of influence of phase noise of the terminal device on a signal received by the terminal device.

Optionally, the modulation coding mode threshold and the resource block number threshold may be represented by (M+N) bits, where M is used to indicate a current representation threshold, and N is a threshold. When the threshold is the modulation coding mode threshold corresponding to the phase tracking reference signal pattern, the required bits of M depend on the total number of modulation and coding mode thresholds. In the current LTE system, the modulation coding mode threshold is 0 to 28, a total of 29 bits. Therefore M requires 5 bits. The number of N thresholds is determined. If the MCS is set to three thresholds, they are respectively

with

Then N needs a bit of 2. If the threshold of the modulation and coding mode sent by the terminal device is (01111+01), it indicates that the third threshold is 16. If all three thresholds need to be fed back, the modulation coding mode threshold can also be expressed as (M+M+M). If only a part of the threshold needs to be updated, the specific updated threshold and which MCS threshold can be indicated in the form of (M+N).

When the pre-threshold is the threshold of the number of resource blocks corresponding to the phase tracking reference signal pattern, the number of bits required by M depends on the number of resource blocks RB. In the current LTE system, the number of the maximum scheduling resource blocks is 100 RBs. Therefore, M needs 7 bits, and the value of N is determined by the number of thresholds for scheduling the number of resource blocks.

It should be understood that the values of M and N can be adjusted according to actual conditions.

It should also be understood that the modulation coding mode threshold and the resource block number threshold may have other representations, which are not limited in this application.

In 320, the threshold of the modulation coding mode corresponding to the phase tracking reference signal pattern requested by the terminal device, the threshold of the number of scheduling resource blocks corresponding to the phase tracking reference signal pattern requested by the terminal device, and the phase noise of the terminal device Determining a pattern of the phase tracking reference signal by at least one of an influence factor of the signal received by the terminal device, and at least one of a modulation coding mode of the current network device scheduling terminal device and a bandwidth of the network device scheduling terminal device .

In 330, the network device transmits the phase tracking reference signal to the terminal device according to the determined pattern of the phase tracking reference signal.

At 340, the terminal device receives the phase tracking reference signal.

The method in the range of 320 to 340 is the same as the method 210 to 230 of the method 200. To avoid repetition, the application will not be repeated.

FIG. 6 is a schematic flow diagram of a method 400 of wireless communication in accordance with the present application. As shown in FIG. 6, the method 400 includes the following.

In 410, the terminal device sends a fifth indication message to the network device, where the fifth indication message is used to indicate that the terminal device requests the first resource to the network device, where the first resource is used by the terminal device to send the network device to the network device. The terminal device sends, to the network device, a modulation and coding mode threshold corresponding to the phase tracking reference signal pattern requested by the terminal device, and a threshold number of scheduling resource blocks corresponding to the phase tracking reference signal requested by the terminal device, And at least one of a factor of influence of phase noise of the terminal device on a signal received by the terminal device.

Specifically, since the phase noise is easily affected by the environment, for example, an increase in temperature may cause deterioration of phase noise. Therefore, when the terminal device detects that the current threshold value of the PTRS pattern is inappropriate, the terminal device sends the terminal device to the network device. And sending a fourth indication message, configured to request, to the network device, a modulation coding mode threshold corresponding to the phase tracking reference signal pattern requested by the resource feedback terminal device, and a scheduling resource corresponding to the phase tracking reference signal requested by the terminal device a block number threshold and at least one of a factor of influence of phase noise of the terminal device on a signal received by the terminal device.

Optionally, the terminal device may send, by using an RRC report, a modulation coding mode threshold corresponding to the phase tracking reference signal pattern requested by the terminal device to the network device, and a scheduling resource block corresponding to the phase tracking reference signal pattern requested by the terminal device. a number threshold, and at least one of a factor of influence of phase noise of the terminal device on a signal received by the terminal device.

In 420, the network device receives fifth indication information of the terminal device.

In 430, the network device sends sixth indication information to the terminal device, where the sixth indication information is used to indicate the first resource.

Optionally, the sixth indication information is further used to indicate that the terminal feeds back, to the network device, a modulation and coding mode threshold corresponding to the phase tracking reference signal pattern requested by the terminal device, and the phase requested by the terminal device Tracking a threshold number of scheduling resource blocks corresponding to the reference signal, and at least one of a factor of influence of phase noise of the terminal device on a signal received by the terminal device.

Specifically, when the network device detects that the threshold value of the current PTRS pattern is inappropriate, the terminal device may send indication information to the terminal device, where the terminal device is configured to feed back the phase tracking reference signal pattern requested by the terminal device. a corresponding modulation coding mode threshold, a threshold number of scheduling resource blocks corresponding to the phase tracking reference signal requested by the terminal device, and at least one of a factor of influence of a phase noise of the terminal device on a signal received by the terminal device One.

In 440, the terminal device receives sixth indication information of the network device.

In 450, the terminal device sends, to the network device, a modulation and coding mode threshold corresponding to the phase tracking reference signal pattern requested by the terminal device, a threshold number of scheduling resource blocks corresponding to the phase tracking reference signal pattern requested by the terminal device, and the terminal device. At least one of the influence factors of the phase noise on the signal received by the terminal device.

In 460, a threshold of a modulation coding mode corresponding to a phase tracking reference signal pattern requested by the terminal device, a threshold number of a scheduling resource block corresponding to the phase tracking reference signal pattern requested by the terminal device, and a phase noise of the terminal device Determining a pattern of the phase tracking reference signal by at least one of an influence factor of a signal received by the terminal device and at least one of a currently scheduled modulation coding mode and bandwidth.

In 470, the network device transmits the phase tracking reference signal to the terminal device according to the determined pattern of the phase tracking reference signal.

In 480, the terminal device receives the phase tracking reference signal.

The method in 460 to 480 is the same as 210 to 230 of the method 200, and in order to avoid repetition, the present application will not be described again.

Therefore, in the present application, the network device is configured according to a modulation coding mode threshold corresponding to the phase tracking reference signal pattern requested by the terminal device, a threshold number of scheduling resource blocks corresponding to the phase tracking reference signal pattern requested by the terminal device, and the terminal device. Determining the phase tracking by at least one of a phase noise affecting a signal received by the terminal device, and at least one of a modulation coding mode of the current network device scheduling terminal and a resource block of the current network device scheduling terminal The pattern of the reference signal can flexibly adjust the pattern of the phase tracking reference signal during the communication process, reducing the number of subcarriers occupied by the phase tracking reference signal, and saving resource overhead.

FIG. 7 is a schematic block diagram of an apparatus 500 for wireless communication in accordance with the present application. As shown in FIG. 7, the apparatus for wireless communication includes:

a determining module 510, configured to: according to a modulation coding mode threshold corresponding to the phase tracking reference signal pattern requested by the terminal device, a threshold number of scheduling resource blocks corresponding to the phase tracking reference signal requested by the terminal device, and the terminal device Determining at least one of a factor of influence of the phase noise on the signal received by the terminal device, and at least one of a modulation coding mode of the current network device scheduling terminal and a resource block of the current network device scheduling terminal a pattern of phase tracking reference signals;

The sending module 520 is configured to send the phase tracking reference signal to the terminal device according to the determined pattern of the phase tracking reference signal.

Optionally, the determining module 510 and the sending module 520 are used to perform the operations of the method 200 or the method 300 or the method 400 of the wireless communication of the present application. For brevity, no further details are provided herein.

The device for wireless communication described above is a network device in the method embodiment, and may also be a chip integrated in the network device.

FIG. 8 is a schematic block diagram of an apparatus 600 for wireless communication in accordance with the present application. As shown in FIG. 8, the apparatus for wireless communication includes:

The sending module 610 is configured to send the first indication information to the network device, where the first indication information is used to indicate a modulation coding mode threshold corresponding to the phase tracking reference signal pattern requested by the terminal, and the terminal requests the a threshold of a number of scheduling resource blocks corresponding to the phase tracking reference signal, and at least one of a factor of influence of a phase noise of the terminal device on a signal received by the terminal device;

The receiving module 620 is configured to receive a phase tracking reference signal sent by the network device.

Optionally, the sending module 610 and the receiving module 620 are used to perform the operations of the method 200 or the method 300 or the method 400 of the wireless communication of the present application. For brevity, no further details are provided herein.

The network device and the terminal device are completely corresponding to the network device and the terminal device in the method embodiment, and the corresponding steps are performed by the corresponding module. For details, refer to the corresponding method embodiment.

The device for wireless communication is the terminal device in the method embodiment, and the chip may be integrated into the terminal device.

FIG. 9 is a schematic block diagram of another form of apparatus 700 for wireless communication provided by the present application, the communication apparatus 700 comprising:

a memory 710, configured to store a program, where the program includes a code;

The transceiver 720 is configured to communicate with other devices;

The processor 730 is configured to execute program code in the memory 710.

Optionally, when the code is executed, the processor 730 may implement various operations of the method 200 or the method 300 or the method 400. For brevity, details are not described herein again. At this time, the communication device 700 may be a network device or a terminal device. The transceiver 720 is configured to perform specific signal transceiving under the driving of the processor 730.

The communication device 700 may be the above-mentioned network device or terminal device, or may be a chip integrated in the network device or the terminal device. The processor performs the operation of the determining module, and the transceiver may include a transmitter and/or a receiver, respectively executing the sending module. And the corresponding steps of the receiving module.

The invention also provides the following examples. It should be noted that the numbers of the following embodiments do not necessarily need to follow the numbering sequence of the previous embodiment:

A method of wireless communication, comprising:

a threshold of a modulation coding mode corresponding to a phase tracking reference signal pattern requested by the terminal device, a threshold of a number of scheduling resource blocks corresponding to the phase tracking reference signal requested by the terminal device, and a terminal device according to the terminal device At least one of a factor of influence of the phase noise on the signal received by the terminal device, and a current modulation mode of the network device scheduling the terminal device and a bandwidth of the current network device scheduling the terminal device At least one of determining a pattern of the phase tracking reference signal;

And transmitting the phase tracking reference signal to the terminal device according to the determined pattern of the phase tracking reference signal.

2. The method according to embodiment 1, wherein the determining the pattern of the phase tracking reference signal comprises:

Determining a time domain density of the phase tracking reference signal according to a modulation coding mode threshold corresponding to the phase tracking reference signal pattern requested by the terminal device, and a modulation coding mode of the current network device scheduling the terminal device.

The method according to the embodiment 1 or 2, wherein the modulation coding mode threshold corresponding to the phase tracking reference signal pattern and the modulation coding mode of the current network device scheduling the terminal device Determining a time domain density of the phase tracking reference signal, including:

Correcting a modulation coding mode threshold corresponding to the phase tracking reference signal pattern according to phase noise of the network device;

Determining a time domain density of the phase tracking reference signal according to a modified modulation and coding mode threshold corresponding to the phase tracking reference signal pattern and a current modulation mode of the network device scheduling the terminal device.

The method of embodiment 3, wherein before the transmitting the phase tracking reference signal to the terminal device according to the pattern of the phase tracking reference signal, the method further includes:

Transmitting, by the network device, a first indication information to the terminal device, where the network device corrects a modulation coding mode threshold corresponding to the phase tracking reference signal pattern, where the first indication information is used to indicate the corrected phase tracking reference signal The modulation coding mode threshold corresponding to the pattern; or

When the network device does not modify the modulation and coding mode threshold corresponding to the phase tracking reference signal pattern, the first indication information is sent to the terminal device, where the first indication information is acknowledgement information.

The method of any one of embodiments 1 to 4, wherein the determining the pattern of the phase tracking reference signal comprises:

Determining a frequency domain density of the phase tracking reference signal according to a threshold number of scheduling resource blocks corresponding to the phase tracking reference signal and a bandwidth of the current network device scheduling terminal device.

The method according to the embodiment 5, wherein the phase tracking reference signal is determined according to a threshold number of scheduling resource blocks corresponding to the phase tracking reference signal and a bandwidth of the current network device scheduling terminal device. Frequency domain density, including:

Correcting a threshold of the number of scheduling resource blocks corresponding to the phase tracking reference signal according to phase noise of the network device;

Determining a frequency domain density of the phase tracking reference signal according to the corrected threshold number of scheduling resource blocks corresponding to the phase tracking reference signal and the bandwidth of the current network device scheduling terminal device.

The method according to the embodiment 6, wherein before the transmitting the phase tracking reference signal to the terminal device according to the pattern of the phase tracking reference signal, the method further comprises:

And when the network device corrects the threshold of the number of scheduling resource blocks corresponding to the phase tracking reference signal, sending, to the terminal device, second indication information, where the second indication information is used to indicate the corrected phase tracking The threshold of the number of scheduling resource blocks corresponding to the reference signal; or

When the network device does not have the threshold of the number of scheduling resource blocks corresponding to the phase tracking reference signal, the second indication information is sent to the terminal device, where the second indication information is acknowledgement information.

The method according to the embodiment 4 or 7, wherein the first indication information is radio resource control signaling, and the second indication information is radio resource control signaling.

9. A method of wireless communication, comprising:

The terminal device sends the first indication information to the network device, where the first indication information is used for a modulation coding mode threshold corresponding to the phase tracking reference signal pattern requested by the terminal, and a scheduling corresponding to the phase tracking reference signal requested by the terminal a resource block number threshold, and at least one of a factor of influence of phase noise of the terminal device on a signal received by the terminal device;

Receiving a phase tracking reference signal sent by the network device.

The method according to the embodiment 9, wherein the receiving the phase tracking reference signal sent by the network device comprises:

Receiving, by the network device, second indication information, where the second indication information is used to indicate a modified modulation and coding mode threshold corresponding to the corrected phase tracking reference signal pattern and/or the corrected phase tracking reference The threshold of the number of scheduling resource blocks corresponding to the signal;

Determining, according to the second indication information, a modulation coding mode threshold corresponding to the corrected phase tracking reference signal pattern and/or a threshold number of scheduling resource blocks corresponding to the modified phase tracking reference signal;

And a modulation coding mode threshold corresponding to the corrected phase tracking reference signal pattern and/or a threshold number of scheduling resource blocks corresponding to the modified phase tracking reference signal, and a modulation coding of the network device scheduling terminal device And determining, by the current network device, a bandwidth of the terminal device, determining a time domain and/or a frequency domain density of the phase tracking reference signal;

Determining the corrected phase tracking reference signal pattern according to a time domain density and/or a frequency domain density of the phase tracking reference signal;

Receiving, according to the pattern of the phase tracking reference signal, a phase tracking reference signal transmitted by the network device.

The method of embodiment 10, wherein the second indication information is radio resource control signaling.

12. A network device, comprising:

a determining module, configured to: a threshold of a modulation coding mode corresponding to a phase tracking reference signal pattern requested by the terminal device, and a threshold number of a scheduling resource block corresponding to the phase tracking reference signal requested by the terminal device, and a threshold At least one of a factor of influence of a phase noise of the terminal device on a signal received by the terminal device, and at least one of a modulation coding mode of the current network device scheduling terminal device and a bandwidth of the current network device scheduling terminal device Determining a pattern of the phase tracking reference signal;

And a sending module, configured to send the phase tracking reference signal to the terminal device according to the determined pattern of the phase tracking reference signal.

The network device according to the embodiment 12, wherein the determining module is specifically configured to:

Determining a time domain density of the phase tracking reference signal according to a modulation coding mode threshold corresponding to the phase tracking reference signal pattern requested by the terminal device, and a modulation coding mode of the current network device scheduling the terminal device.

The network device according to the embodiment 12 or 13, wherein the determining module is specifically configured to:

Correcting a modulation coding mode threshold corresponding to the phase tracking reference signal pattern according to phase noise of the network device;

And determining a time domain density of the phase tracking reference signal according to the modified modulation and coding mode threshold corresponding to the phase tracking reference signal pattern and the modulation coding mode of the current network device scheduling terminal device.

The network device according to the embodiment 14, wherein the transmitting module is specifically configured to send the phase tracking reference signal to the terminal device according to the pattern of the phase tracking reference signal. :

Transmitting, by the network device, a first indication information to the terminal device, where the network device corrects a modulation coding mode threshold corresponding to the phase tracking reference signal pattern, where the first indication information is used to indicate the corrected phase tracking reference signal The modulation coding mode threshold corresponding to the pattern; or

When the network device does not modify the modulation and coding mode threshold corresponding to the phase tracking reference signal pattern, the first indication information is sent to the terminal device, where the first indication information is acknowledgement information.

The network device according to any one of the embodiments 12 to 15, wherein the determining module is specifically configured to:

Determining a frequency domain density of the phase tracking reference signal according to a threshold number of scheduling resource blocks corresponding to the phase tracking reference signal and a bandwidth of the current network device scheduling terminal device.

The network device according to the embodiment 16, wherein the determining module is specifically configured to:

Correcting a threshold of the number of scheduling resource blocks corresponding to the phase tracking reference signal according to phase noise of the network device;

Determining a frequency domain density of the phase tracking reference signal according to the corrected threshold number of scheduling resource blocks corresponding to the phase tracking reference signal and the bandwidth of the current network device scheduling terminal device.

The network device according to the embodiment 17, wherein the transmitting module is specifically configured to send the phase tracking reference signal to the terminal device according to the pattern of the phase tracking reference signal. :

And when the network device corrects the threshold of the number of scheduling resource blocks corresponding to the phase tracking reference signal, sending, to the terminal device, second indication information, where the second indication information is used to indicate the corrected phase tracking The threshold of the number of scheduling resource blocks corresponding to the reference signal; or

When the network device does not modify the threshold of the number of scheduling resource blocks corresponding to the phase tracking reference signal, the second indication information is sent to the terminal device, where the second indication information is acknowledgement information.

The network device according to the embodiment 15 or 18, wherein the first indication information is radio resource control signaling, and the second indication information is radio resource control signaling.

20. A terminal device, comprising:

a sending module, configured to send the first indication information to the network device, where the first indication information is used to indicate a modulation coding mode threshold corresponding to the phase tracking reference signal pattern requested by the terminal, and the phase requested by the terminal Tracking a threshold number of scheduling resource blocks corresponding to the reference signal, and at least one of a factor of influence of phase noise of the terminal device on a signal received by the terminal device;

And a receiving module, configured to receive a phase tracking reference signal sent by the network device.

The terminal device according to the embodiment 20, wherein before receiving the phase tracking reference signal sent by the network device, the receiving module is specifically configured to:

Receiving, by the network device, second indication information, where the second indication information is used to indicate a modified modulation and coding mode threshold corresponding to the corrected phase tracking reference signal pattern and/or the corrected phase tracking reference The threshold of the number of scheduling resource blocks corresponding to the signal;

Determining, according to the second indication information, a modulation coding mode threshold corresponding to the corrected phase tracking reference signal pattern and/or a threshold number of scheduling resource blocks corresponding to the modified phase tracking reference signal;

And a modulation coding mode threshold corresponding to the modified phase tracking reference signal pattern and/or a threshold number of scheduling resource blocks corresponding to the modified phase tracking reference signal, and a modulation coding mode of the network device scheduling terminal And/or the bandwidth of the current network device scheduling terminal device, determining a time domain and/or a frequency domain density of the phase tracking reference signal;

Determining the corrected phase tracking reference signal pattern according to a time domain density and/or a frequency domain density of the phase tracking reference signal;

Receiving, according to the pattern of the phase tracking reference signal, a phase tracking reference signal transmitted by the network device.

The terminal device according to the embodiment 21, wherein the second indication information is radio resource control signaling.

Those of ordinary skill in the art will appreciate that the modules and algorithm steps of the various examples described in connection with the embodiments disclosed herein can be implemented in electronic hardware or a combination of computer software and electronic hardware. Whether these functions are performed in hardware or software depends on the specific application and design constraints of the solution. A person skilled in the art can use different methods to implement the described functions for each particular application, but such implementation should not be considered to be beyond the scope of the present application.

A person skilled in the art can clearly understand that for the convenience and brevity of the description, the specific working process of the system, the device and the module described above can refer to the corresponding process in the foregoing method embodiment, and details are not described herein again.

In the several embodiments provided by the present application, it should be understood that the disclosed systems, devices, and methods may be implemented in other manners. For example, the device embodiments described above are merely illustrative. For example, the division of the modules is only a logical function division. In actual implementation, there may be another division manner, for example, multiple modules or components may be combined or Can be integrated into another system, or some features can be ignored or not executed. In addition, the mutual coupling or direct coupling or communication connection shown or discussed may be an indirect coupling or communication connection through some interface, device or module, and may be electrical, mechanical or otherwise.

The modules described as separate components may or may not be physically separated. The components displayed as modules may or may not be physical modules, that is, may be located in one place, or may be distributed to multiple network modules. Some or all of the modules may be selected according to actual needs to achieve the purpose of the solution of the embodiment.

In addition, each functional module in each embodiment of the present application may be integrated into one processing module, or each module may exist physically separately, or two or more modules may be integrated into one module.

The functions, if implemented in the form of software functional modules and sold or used as separate products, may be stored in a computer readable storage medium. Based on such understanding, the technical solution of the present application, which is essential or contributes to the prior art, or a part of the technical solution, may be embodied in the form of a software product, which is stored in a storage medium, including The instructions are used to cause a computer device (which may be a personal computer, server, or network device, etc.) to perform all or part of the steps of the methods described in various embodiments of the present application. The foregoing storage medium includes: a U disk, a mobile hard disk, a read-only memory (ROM), a random access memory (RAM), a magnetic disk, or an optical disk, and the like, which can store program codes. .

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, it may be implemented in whole or in part in the form of a computer program product. The computer program product includes one or more computer instructions. When the computer program instructions are loaded and executed on a computer, the processes or functions described in accordance with the present application are generated in whole or in part. The computer can be a general purpose computer, a special purpose computer, a computer network, or other programmable device. The computer instructions can be stored in a computer readable storage medium or transferred from one computer readable storage medium to another computer readable storage medium, for example, the computer instructions can be from a website site, computer, server or data center Transfer to another website site, computer, server, or data center via wired (eg, coaxial cable, fiber optic, digital subscriber line) or wireless (eg, infrared, wireless, microwave, etc.). The computer readable storage medium can be any available media that can be accessed by a computer or a data storage device such as a server, data center, or the like that includes one or more available media. The usable medium may be a magnetic medium, such as a floppy disk, a hard disk, a magnetic tape, an optical medium, or a semiconductor medium such as a Solid State Disk (SSD).

The foregoing is only a specific embodiment of the present application, but the scope of protection of the present application is not limited thereto, and any person skilled in the art can easily think of changes or substitutions within the technical scope disclosed in the present application. It is covered by the scope of protection of this application. Therefore, the scope of protection of the present application should be determined by the scope of the claims.

Claims (28)

1. A method of wireless communication, comprising:

   a threshold of a modulation coding mode corresponding to a phase tracking reference signal pattern requested by the terminal device, a threshold number of scheduling resource blocks corresponding to the phase tracking reference signal pattern requested by the terminal device, and a phase noise pair of the terminal device Determining at least one of an impact factor of a signal received by the terminal device, and at least one of a modulation coding manner of the current network device scheduling the terminal device and a bandwidth of the current network device scheduling the terminal device, Determining a pattern of the phase tracking reference signal;

   And transmitting the phase tracking reference signal to the terminal device according to the determined pattern of the phase tracking reference signal.
2. The method according to claim 1, wherein the network device corresponds to a modulation coding mode threshold corresponding to a phase tracking reference signal pattern requested by the terminal device, and the phase tracking reference signal pattern requested by the terminal device Scheduling a resource block number threshold, and at least one of a factor of influence of a phase noise of the terminal device on a signal received by the terminal device, and a modulation coding mode of the current network device scheduling the terminal device and the Before the network device schedules at least one of the bandwidths of the terminal device, and before determining the pattern of the phase tracking reference signal, the method further includes:

   Receiving, by the network device, a modulation coding mode threshold corresponding to the phase tracking reference signal pattern requested by the terminal device, a threshold number of scheduling resource blocks corresponding to the phase tracking reference signal pattern requested by the terminal device, and the terminal At least one of a phase noise of the device affecting a signal received by the terminal device.
3. The method according to claim 1, wherein the network device corresponds to a modulation coding mode threshold corresponding to a phase tracking reference signal pattern requested by the terminal device, and the phase tracking reference signal pattern requested by the terminal device Scheduling a resource block number threshold, and at least one of a factor of influence of a phase noise of the terminal device on a signal received by the terminal device, and a modulation coding mode of the current network device scheduling the terminal device and the Before the network device schedules at least one of the bandwidths of the terminal device, and before determining the pattern of the phase tracking reference signal, the method further includes:

   Receiving, by the network device, a number of a table of a modulation coding mode threshold corresponding to the phase tracking reference signal pattern sent by the terminal device, and/or a number of a table of a threshold number of scheduling resource blocks corresponding to the phase tracking reference signal pattern .
4. The method according to claim 1, wherein the network device corresponds to a modulation coding mode threshold corresponding to a phase tracking reference signal pattern requested by the terminal device, and the phase tracking reference signal pattern requested by the terminal device Scheduling a resource block number threshold, and at least one of a factor of influence of a phase noise of the terminal device on a signal received by the terminal device, and a modulation coding mode of the current network device scheduling the terminal device and the Before the network device schedules at least one of the bandwidths of the terminal device, and before determining the pattern of the phase tracking reference signal, the method further includes:

   Receiving, by the network device, a number of a parameter associated with a modulation and coding mode threshold corresponding to the phase tracking reference signal pattern sent by the terminal device, and/or a threshold of a number of scheduling resource blocks corresponding to the phase tracking reference signal pattern The number of the parameter;

   And a parameter of a parameter associated with a modulation coding mode threshold corresponding to the phase tracking reference signal pattern and/or a parameter associated with a threshold number of scheduling resource blocks corresponding to the phase tracking reference signal pattern, sent by the terminal device No. determining a modulation coding mode threshold corresponding to the phase tracking reference signal pattern requested by the terminal device, and a threshold number of scheduling resource blocks corresponding to the phase tracking reference signal pattern requested by the terminal device.
5. The method according to claim 4, wherein the parameter associated with a modulation coding mode threshold corresponding to the phase tracking reference signal pattern and/or a modulation coding mode threshold corresponding to the phase tracking reference signal pattern The associated parameters include at least one of the following parameters:

   Frequency point, phase noise model of the terminal device, subcarrier spacing, and ability of the receiver to process phase noise.
6. The method according to any one of claims 1 to 5, wherein the determining the pattern of the phase tracking reference signal comprises:

   Determining a time domain density of the phase tracking reference signal according to a modulation coding mode threshold corresponding to the phase tracking reference signal pattern requested by the terminal device, and a modulation coding mode of the current network device scheduling the terminal device.
7. The method according to claim 6, wherein the determining, according to a modulation coding mode threshold corresponding to the phase tracking reference signal pattern and the current modulation mode of the network device scheduling the terminal device, determining the The time domain density of the phase tracking reference signal, including:

   Correcting a modulation coding mode threshold corresponding to the phase tracking reference signal pattern;

   Determining a time domain density of the phase tracking reference signal according to a modified modulation and coding mode threshold corresponding to the phase tracking reference signal pattern and a current modulation mode of the network device scheduling the terminal device.
8. The method according to claim 7, wherein before the transmitting the phase tracking reference signal to the terminal device according to the pattern of the phase tracking reference signal, the method further comprises:

   Transmitting, by the network device, a first indication information to the terminal device, where the network device corrects a modulation coding mode threshold corresponding to the phase tracking reference signal pattern, where the first indication information is used to indicate the corrected phase tracking reference signal The modulation coding mode threshold corresponding to the pattern; or

   When the network device does not modify the modulation and coding mode threshold corresponding to the phase tracking reference signal pattern, the first indication information is sent to the terminal device, where the first indication information is acknowledgement information.
9. The method according to any one of claims 1 to 6, wherein the modulation coding mode threshold corresponding to the phase tracking reference signal pattern and the modulation coding mode of the current network device scheduling the terminal device Determining a time domain density of the phase tracking reference signal, including:

   Determining the time domain density of the phase tracking reference signal according to the following table,

   

   Among them, in the table

   

   i=0, 1, 2, 3 are the modified modulation and coding mode thresholds, and the MCS is a modulation and coding mode that the network device schedules for the terminal device.
10. The method according to any one of claims 1 to 9, wherein the determining the pattern of the phase tracking reference signal comprises:

    Determining a frequency domain density of the phase tracking reference signal according to a threshold number of scheduling resource blocks corresponding to the phase tracking reference signal and a bandwidth of the current network device scheduling terminal device.
11. The method according to claim 9, wherein the determining the phase tracking reference signal according to the threshold number of scheduling resource blocks corresponding to the phase tracking reference signal pattern and the bandwidth of the current network device scheduling terminal device Frequency domain density, including:

    Correcting a threshold of the number of scheduling resource blocks corresponding to the phase tracking reference signal pattern;

    Determining a frequency domain density of the phase tracking reference signal according to the corrected threshold number of scheduling resource blocks corresponding to the phase tracking reference signal pattern and the bandwidth of the current network device scheduling terminal device.
12. The method according to claim 11, wherein before the transmitting the phase tracking reference signal to the terminal device according to the pattern of the phase tracking reference signal, the method further comprises:

    And when the network device corrects the threshold of the number of scheduling resource blocks corresponding to the phase tracking reference signal pattern, sending, to the terminal device, second indication information, where the second indication information is used to indicate the corrected phase Tracking the threshold number of scheduling resource blocks corresponding to the reference signal; or

    When the network device does not modify the threshold of the number of scheduling resource blocks corresponding to the phase tracking reference signal pattern, the second indication information is sent to the terminal device, where the second indication information is acknowledgement information.
13. A method of wireless communication, comprising:

    The terminal device sends the first indication information to the network device, where the first indication information is used to indicate a modulation coding mode threshold corresponding to the phase tracking reference signal pattern requested by the terminal, and a scheduling resource block corresponding to the phase tracking reference signal pattern requested by the terminal. a number threshold, and at least one of a factor of influence of phase noise of the terminal device on a signal received by the terminal device;

    Receiving a phase tracking reference signal sent by the network device.
14. The method according to claim 13, wherein the first indication information is a number of a table of modulation coding mode thresholds corresponding to the phase tracking reference signal pattern and/or corresponds to the phase tracking reference signal pattern The number of scheduling resource blocks is the number of the threshold phase table.
15. The method according to claim 14, wherein the first indication information is a number of a parameter associated with a modulation coding mode threshold corresponding to the phase tracking reference signal pattern and/or with the phase tracking reference signal The number of the parameter associated with the number of scheduling resource blocks corresponding to the pattern.
16. The method according to any one of claims 13 to 15, wherein the receiving the phase tracking reference signal sent by the network device comprises:

    Receiving, by the network device, second indication information, where the second indication information is used to indicate a modified modulation and coding mode threshold corresponding to the corrected phase tracking reference signal pattern and/or the corrected phase tracking reference The threshold of the number of scheduling resource blocks corresponding to the signal;

    Determining, according to the second indication information, a modulation coding mode threshold corresponding to the corrected phase tracking reference signal pattern and/or a threshold number of scheduling resource blocks corresponding to the modified phase tracking reference signal;

    And a modulation resource code threshold corresponding to the modified phase tracking reference signal and/or a threshold number of scheduling resource blocks corresponding to the corrected phase tracking reference signal pattern, and a modulation coding of the network device scheduling terminal device And determining, by the current network device, a bandwidth of the terminal device, determining a time domain and/or a frequency domain density of the phase tracking reference signal;

    Determining the corrected phase tracking reference signal pattern according to a time domain density and/or a frequency domain density of the phase tracking reference signal;

    Receiving, according to the pattern of the phase tracking reference signal, a phase tracking reference signal transmitted by the network device.
17. The method according to claim 16, wherein the threshold of the modulation and coding mode corresponding to the corrected phase tracking reference signal pattern and the modulation and coding mode of the network device for scheduling the terminal device are determined. The time domain density of the phase tracking reference signal, including:

    Determine the time domain density according to the table below

    

    Among them, in the table

    

    i=0, 1, 2, 3 are the modified modulation and coding mode thresholds, and the MCS is a modulation and coding mode that the network device schedules for the terminal device.
18. A device for wireless communication, comprising:

    a determining module, configured to: a modulation coding mode threshold corresponding to the phase tracking reference signal pattern requested by the terminal device, a threshold number of scheduling resource blocks corresponding to the phase tracking reference signal pattern requested by the terminal device, and a phase of the terminal device At least one of a factor of influence of a noise on a signal received by the terminal device, and at least a modulation coding manner of the terminal device currently scheduled by the network device and a bandwidth of the current network device scheduling the terminal device a method for determining a pattern of the phase tracking reference signal;

    And a sending module, configured to send the phase tracking reference signal to the terminal device according to the determined pattern of the phase tracking reference signal.
19. The device for wireless communication according to claim 18, wherein the device for wireless communication further comprises:

    a receiving module, configured to receive a modulation coding mode threshold corresponding to the phase tracking reference signal pattern requested by the terminal device, and a threshold number of scheduling resource blocks corresponding to the phase tracking reference signal pattern requested by the terminal device, and At least one of a phase noise of the terminal device affecting a signal received by the terminal device.
20. The apparatus for wireless communication according to claim 19, wherein the receiving module is further configured to receive a number of a table of a modulation coding mode threshold corresponding to the phase tracking reference signal pattern sent by the terminal device and/or Or the number of the table of the threshold number of scheduling resource blocks corresponding to the phase tracking reference signal pattern.
21. The apparatus for wireless communication according to claim 20, wherein the receiving module is further configured to receive a number of a parameter associated with a modulation and coding mode threshold corresponding to the phase tracking reference signal pattern sent by the terminal device And/or a number of a parameter associated with a threshold number of scheduling resource blocks corresponding to the phase tracking reference signal pattern;

    And a parameter of a parameter associated with a modulation coding mode threshold corresponding to the phase tracking reference signal pattern and/or a parameter associated with a threshold number of scheduling resource blocks corresponding to the phase tracking reference signal pattern, sent by the terminal device No. determining a modulation coding mode threshold corresponding to the phase tracking reference signal pattern requested by the terminal device, and a threshold number of scheduling resource blocks corresponding to the phase tracking reference signal pattern requested by the terminal device.
22. Apparatus for wireless communication according to any of claims 18 to 21, wherein said determining module is operative to:

    Determining a time domain density of the phase tracking reference signal according to a modulation coding mode threshold corresponding to the phase tracking reference signal pattern requested by the terminal device, and a modulation coding mode of the current network device scheduling the terminal device.
23. The apparatus for wireless communication according to claim 22, wherein the determining module is specifically configured to:

    Correcting a modulation coding mode threshold corresponding to the phase tracking reference signal pattern;

    And determining a time domain density of the phase tracking reference signal according to the modified modulation and coding mode threshold corresponding to the phase tracking reference signal pattern and the modulation coding mode of the current network device scheduling terminal device.
24. The apparatus for wireless communication according to any one of claims 18 to 23, wherein the determining module is specifically configured to:

    Determining a frequency domain density of the phase tracking reference signal according to a threshold number of scheduling resource blocks corresponding to the phase tracking reference signal pattern and a bandwidth of the current network device scheduling terminal device.
25. The apparatus for wireless communication according to claim 24, wherein the determining module is specifically configured to:

    Correcting a threshold of the number of scheduling resource blocks corresponding to the phase tracking reference signal pattern;

    Determining a frequency domain density of the phase tracking reference signal according to the corrected threshold number of scheduling resource blocks corresponding to the phase tracking reference signal pattern and the bandwidth of the current network device scheduling terminal device.
26. A device for wireless communication, comprising:

    a sending module, configured to send the first indication information to the network device, where the first indication information is used to indicate a modulation coding mode threshold corresponding to the phase tracking reference signal pattern requested by the terminal, and the phase requested by the terminal Tracking a threshold number of scheduling resource blocks corresponding to the reference signal pattern, and at least one of a factor of influence of phase noise of the terminal device on a signal received by the terminal device;

    And a receiving module, configured to receive a phase tracking reference signal sent by the network device.
27. The apparatus for wireless communication according to claim 26, wherein said first indication information is a number of a table of modulation coding mode thresholds corresponding to said phase tracking reference signal pattern and/or a reference to said phase tracking The number of the scheduling resource block corresponding to the signal pattern is the number of the table of the threshold phase.
28. The apparatus for wireless communication according to claim 27, wherein said first indication information is a number and/or a phase of a parameter associated with a modulation coding mode threshold corresponding to said phase tracking reference signal pattern Tracking the number of the parameter associated with the threshold number of scheduling resource blocks corresponding to the reference signal pattern.

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