A configuration and determination method and device for phase noise pilot

Abstract

The present invention discloses a method and device for configuring and determining a phase noise pilot, wherein the method comprises: a first node sends control information to a second node, wherein the control information is used to indicate configuration parameters of a phase noise pilot to the second node; wherein the phase noise pilot is a phase noise pilot sent by the first node, or a phase noise pilot sent by the second node. The second node determines the configuration parameters of the phase noise pilot through the control information sent by the first node and / or through an agreed implicit rule. A third node sends control information to a fourth node, wherein the control information is used to feed back received power or quality information of the phase noise pilot to the fourth node.

Description

[0001] This application is a divisional application of patent application with application number 201710067997.6 (the application date of the original application is February 7, 2017, and the name of the invention is a method and device for configuring, determining, and providing information feedback for a phase noise pilot). Technical Field

[0002] The present invention relates to the field of communication technology, and in particular to a configuration and determination method and device for a phase noise pilot. Background Art

[0003] Phase noise refers to the random change in the phase of the system output signal caused by various noises in the system (such as various RF devices). The three elements that describe radio waves are amplitude, frequency, and phase. Among them, frequency and phase affect each other. Ideally, the fluctuation period of a wireless signal with a fixed frequency is fixed, just like the normal flight of an airplane, the take-off time is fixed. A pulse signal in the frequency domain (spectrum width close to 0) is a sine wave of a certain frequency in the time domain.

[0004] But the actual situation is that the signal always has a certain spectrum width, and due to the influence of noise, the signal power is also far away from the center frequency, just like a flight delayed for more than 1 hour; the signal far away from the center frequency is called a sideband signal, and the sideband signal may be squeezed into the adjacent frequency, just like a delayed flight may squeeze the time of other flights, thus making the flight schedule chaotic. This sideband signal is called phase noise.

[0005] In actual communication systems, the phase noise that always exists comes from all places where the local oscillator (LO) is used. For an orthogonal frequency division multiplexing (OFDM) system, the importance of maintaining orthogonality between subcarriers is obvious, so the phase noise in the OFDM system mainly considers the phase noise from the local oscillators at the transmitter and receiver.

[0006] The magnitude of phase noise is related to frequency. In high-frequency systems, the phase noise problem will be more serious. Since this noise is essentially a multiplicative noise, it cannot be improved by increasing power or using multi-antenna shaping like additive noise. Therefore, it is necessary to introduce a phase noise measurement pilot to compensate for the impact of phase noise. The phase noise compensation pilot can be referred to as a phase noise pilot (PTRS).

[0007] In existing communication systems, the design of PTRS is relatively simple. Generally, each transmission layer corresponds to a PTRS. Here, the correspondence generally indicates that the phase noise is correlated, and other description methods such as joint demodulation are not excluded. However, in a multi-antenna system, using multiple transmission layers for transmission is a very typical situation. Therefore, the main problem with this PTRS transmission method is that the overhead is large, which will cause unnecessary waste of pilot overhead. Another design is that when multi-layer transmission is used in a multi-antenna system, all layers correspond to the same PTRS port, but this method is very inflexible. When transmitting at multiple different transmitting nodes, it may cause inaccurate phase noise estimation. This is mainly because different nodes may have different local oscillator LOs. Summary of the invention

[0008] In order to solve the above technical problems, an embodiment of the present invention provides a method and device for configuring and determining a phase noise pilot.

[0009] The method for configuring a phase noise pilot provided by an embodiment of the present invention includes:

[0010] The first node sends control information to the second node, where the control information is used to indicate configuration parameters of a phase noise pilot to the second node;

[0011] The phase noise pilot is a phase noise pilot sent by the first node, or a phase noise pilot sent by the second node.

[0012] In the embodiment of the present invention, when the configuration parameter is a power configuration parameter, the configuration parameter includes at least one of the following:

[0013] Transmit power offset between PTRS ports;

[0014] The transmit power offset of PTRS relative to the demodulation reference signal DMRS port;

[0015] The transmit power offset of PTRS relative to the sounding reference signal SRS port;

[0016] PTRS transmit power offset relative to data information;

[0017] PTRS transmit power offset relative to control information;

[0018] PTRS measures the transmit power offset of the CSI-RS relative to the channel state information;

[0019] The transmit power offset of PTRS relative to the beam pilot BRS.

[0020] In the embodiment of the present invention, when the configuration parameter is a power configuration parameter, the method for indicating the configuration parameter includes at least one of the following:

[0021] indicating the bias value through control information;

[0022] Indicating a biased reference object through control information;

[0023] Indicating a power offset value through precoding information;

[0024] Indicates the reference signal information associated with PTRS power.

[0025] In an embodiment of the present invention, the method for indicating the configuration parameters further includes at least one of the following:

[0026] Indicates the selection information of the associated SRS port of the PTRS port power;

[0027] Indicating selection information of associated DMRS ports of PTRS port power;

[0028] Indicating the selection information of the associated CSI-RS port of the PTRS port power;

[0029] Indicates the selection information of the associated BRS port of the PTRS port power.

[0030] In an embodiment of the present invention, the method for indicating the configuration parameters further includes: indicating a reference signal type associated with the PTRS port power, wherein the type includes at least one of the following: DMRS, SRS, CSI-RS, BRS.

[0031] In the embodiment of the present invention, the reference signal information indicating PTRS power association includes: indicating that the PTRS power is the same as the power of the associated reference signal port; or indicating that the PTRS power is the sum of the powers of the associated reference signal ports.

[0032] In the embodiment of the present invention, when the configuration parameter is a precoding configuration parameter, the method for indicating the configuration parameter includes: indicating an associated reference signal of PTRS port precoding.

[0033] In an embodiment of the present invention, the method for indicating the configuration parameters further includes at least one of the following:

[0034] Indicates the selection information of the associated SRS port for PTRS port precoding;

[0035] Indicates the selection information of the associated DMRS port of the PTRS port precoding;

[0036] Indicates the selection information of the associated CSI-RS port for PTRS port precoding;

[0037] Indicates the selection information of the associated BRS port for PTRS port precoding.

[0038] In the embodiment of the present invention, the method for indicating the configuration parameters further includes: notifying the reference signal type associated with the PTRS port precoding, wherein the type includes at least one of the following: DMRS, SRS, CSI-RS, BRS.

[0039] In the embodiment of the present invention, the associated reference signal indicating PTRS port precoding includes: indicating that the PTRS port precoding is the same as the associated reference signal port precoding; or indicating that the PTRS port precoding is a weighted combination of the associated reference signal ports.

[0040] In the embodiment of the present invention, when the configuration parameter is a density configuration parameter, the method for indicating the configuration parameter includes at least one of the following:

[0041] An associated reference signal indicating the PTRS port density;

[0042] Indicates the PTRS port density relative to the associated reference signal multiple.

[0043] In the embodiment of the present invention, the PTRS port density is the same as the density of the associated reference signal ports; or the PTRS port density is an integer multiple of the density of the associated reference signal ports.

[0044] In the embodiment of the present invention, when the configuration parameter is a sequence configuration parameter, the method for indicating the configuration parameter includes: indicating an associated reference signal of a PTRS port sequence.

[0045] In the embodiment of the present invention, the associated reference signal indicating the PTRS port sequence includes: indicating that the PTRS sequence is the same as the sequence parameter of the associated reference signal port, wherein the sequence parameter includes at least one of the following: sequence type, sequence initialization parameter.

[0046] In the embodiment of the present invention, when the configuration parameter is a quasi-co-location parameter, the method for indicating the configuration parameter includes at least one of the following:

[0047] Indicating selection information of SRS ports quasi-co-located with PTRS ports;

[0048] Indicating selection information of DMRS ports quasi-co-located with PTRS ports;

[0049] Indicating selection information of associated CSI-RS ports of quasi-co-location of PTRS ports;

[0050] Indicates the selection information of the BRS port where the PTRS port is quasi-co-located.

[0051] In the embodiment of the present invention, when the configuration parameter is a resource configuration parameter, the method for indicating the configuration parameter includes: indicating a maximum number of subcarriers or a maximum number of REs of a PTRS port in the frequency domain.

[0052] In an embodiment of the present invention, when the configuration parameter is a parameter indicating the association relationship between a DMRS port and a PTRS port, the first node indicates PTRS grouping information associated with the DMRS port through signaling, and / or the first node indicates DMRS port grouping information associated with the PTRS port through signaling.

[0053] The method for determining a phase noise pilot provided by an embodiment of the present invention includes:

[0054] The second node determines the configuration parameters of the phase noise pilot through the control information sent by the first node and / or through an agreed implicit rule;

[0055] The phase noise pilot is a phase noise pilot sent by the first node, or a phase noise pilot sent by the second node.

[0056] In the embodiment of the present invention, when the configuration parameter is a DMRS port and PTRS port association relationship indication parameter, the second node determines the DMRS port and PTRS port association relationship by an agreed implicit rule, specifically including at least one of the following:

[0057] Determine the grouping method of PTRS according to the number of PTRS ports;

[0058] Determine the grouping method of PTRS according to the PTRS density parameter;

[0059] Determine the grouping method of PTRS according to the modulation and coding method;

[0060] Determine a PTRS grouping method according to the allocated frequency domain resources and / or time domain resources;

[0061] Determine the PTRS grouping method based on the operating frequency;

[0062] Determine the grouping method of PTRS according to the transmission mode / technology type;

[0063] Determine the PTRS grouping method based on the DCI type;

[0064] Determine the PTRS grouping method based on the PTRS power parameters;

[0065] Determine the PTRS grouping method based on the mapping of code streams to layers;

[0066] Determine the grouping method of PTRS according to the multiple access method;

[0067] Determine the PTRS grouping method based on the OCC value;

[0068] The PTRS density is determined based on the maximum number of PTRS REs.

[0069] In the embodiment of the present invention, when the configuration parameter is a precoding indication parameter, the second node determines the PTRS precoding by an agreed implicit rule, specifically including:

[0070] A codeword is selected from a precoding set for PTRS precoding according to an agreed time domain and / or time domain resource position.

[0071] In an embodiment of the present invention, when the configuration parameter is a PTRS transmission status indication parameter, the second node determines the PTRS transmission status according to the PTRS transmission status configuration signaling and MCS method sent by the first node, and the transmission status includes at least one of the following: no transmission, zero power transmission, and non-zero power transmission.

[0072] In the embodiment of the present invention, when the configuration parameter is a power configuration parameter, the configuration parameter includes at least one of the following:

[0073] Transmit power offset between PTRS ports;

[0074] The transmit power offset of PTRS relative to the DMRS port;

[0075] The transmit power offset of PTRS relative to the SRS port;

[0076] PTRS transmit power offset relative to data information;

[0077] PTRS transmit power offset relative to control information;

[0078] Transmit power offset of PTRS relative to CSI-RS;

[0079] The transmit power offset of PTRS relative to BRS.

[0080] In the embodiment of the present invention, when the configuration parameter is a power configuration parameter, the second node determines at least one of the following information through the control information sent by the first node: a power offset value, a reference object of the offset, and a precoding weight.

[0081] In the embodiment of the present invention, when the configuration parameter is a power configuration parameter, the second node determines at least one of the following information through the control information sent by the first node:

[0082] Selection information of the associated SRS port of the PTRS port power;

[0083] Selection information of DMRS ports associated with PTRS port power;

[0084] Selection information of CSI-RS ports associated with PTRS port power;

[0085] The selection information of the associated BRS port of the PTRS port power.

[0086] In the embodiment of the present invention, when the configuration parameter is a power parameter, the second node determines the power parameter of the phase noise pilot by using an agreed implicit rule, specifically including at least one of the following:

[0087] Determine the power parameters of PTRS according to the number of PTRS ports;

[0088] Determine a PTRS power parameter based on the number of DMRS ports associated with the PTRS;

[0089] Determine a PTRS power parameter according to the power of the DMRS associated with the PTRS;

[0090] Determine the power parameters of PTRS according to the modulation and coding method;

[0091] Determine a power parameter of the PTRS according to the allocated frequency domain resources and / or time domain resources;

[0092] Determine the power parameters of PTRS according to the operating frequency;

[0093] Determine the power parameters of PTRS based on the transmission mode / technology type;

[0094] Determine the power parameters of PTRS according to the DCI type;

[0095] Determine the power parameters of PTRS according to the PTRS time / frequency density;

[0096] Determine the power parameters of PTRS based on the mapping of code streams to layers;

[0097] Determine the power parameters of PTRS according to the multiple access mode;

[0098] Determine the power parameters of PTRS according to the value of OCC;

[0099] Determine the power parameter of PTRS according to the sequence of PTRS;

[0100] Determine the power parameters of PTRS based on the quasi-co-location relationship between PTRS and other reference signals;

[0101] The power parameter includes a power absolute value or a power offset value.

[0102] In the embodiment of the present invention, when the configuration parameter is a density parameter, the second node determines the density of the phase noise pilot by using an agreed implicit rule, specifically including at least one of the following:

[0103] Determine the density parameter of PTRS according to the number of PTRS ports;

[0104] Determine a PTRS density parameter based on the number of DMRS ports associated with the PTRS;

[0105] Determine a PTRS density parameter according to the density of the DMRS associated with the PTRS;

[0106] Determine the density parameters of PTRS according to the modulation and coding method;

[0107] Determine a density parameter of the PTRS according to the allocated frequency domain resources and / or time domain resources;

[0108] Determine the density parameters of PTRS according to the operating frequency;

[0109] Determine the density parameters of PTRS based on the transmission mode / technology type;

[0110] Determine the density parameters of PTRS according to the DCI type;

[0111] Determine the density parameter of PTRS according to the PTRS power parameter;

[0112] Determine the density parameters of PTRS based on the mapping of code streams to layers;

[0113] Determine the density parameters of PTRS according to the multiple access method;

[0114] Determine the density parameter of PTRS according to the value of OCC;

[0115] The PTRS density is determined based on the maximum number of PTRS REs;

[0116] Determining PTRS density based on a quasi-co-location relationship between PTRS and other reference signals with respect to frequency offset or Doppler shift;

[0117] The density parameter includes time domain density and / or frequency domain density.

[0118] In the embodiment of the present invention, when the configuration parameter is the number of ports, the second node determines the number of ports of the phase noise pilot by using an agreed implicit rule, specifically including at least one of the following:

[0119] Determine the number of PTRS ports based on the density of PTRS;

[0120] Determine the number of PTRS ports based on the modulation and coding method;

[0121] Determine the number of PTRS ports according to the allocated frequency domain resources and / or time domain resources;

[0122] Determine the number of PTRS ports based on the operating frequency;

[0123] Determine the number of PTRS ports based on the transmission mode / technology type;

[0124] Determine the number of PTRS ports based on the DCI type;

[0125] Determine the number of PTRS ports based on PTRS time / frequency density;

[0126] Determine the number of PTRS ports based on the mapping of code streams to layers;

[0127] Determine the number of PTRS ports based on the multiple access method;

[0128] Determine the number of PTRS ports based on the value of OCC;

[0129] The number of ports of PTRS is determined according to the quasi-co-location relationship between PTRS and other reference signals.

[0130] In the embodiment of the present invention, when the configuration parameter is a sequence parameter, the second node determines the sequence parameter of the phase noise pilot by using an agreed implicit rule, specifically including at least one of the following:

[0131] Determine the sequence parameters of PTRS according to the modulation and coding mode;

[0132] Determine a sequence parameter of the PTRS according to the allocated frequency domain resources and / or time domain resources;

[0133] Determine the sequence parameters of PTRS according to the operating frequency;

[0134] Determine the sequence parameters of PTRS according to the transmission mode / technology type;

[0135] Determine the sequence parameters of PTRS according to the DCI type;

[0136] Determine the sequence parameters of PTRS according to the multiple access mode;

[0137] Determining a PTRS sequence parameter according to a reference signal sequence parameter associated with the PTRS;

[0138] The sequence parameters include at least one of the following: sequence initialization parameters and sequence type.

[0139] In the embodiment of the present invention, when the configuration parameter is a noise pilot pattern, the second node determines the phase noise pilot pattern by using an agreed implicit rule, specifically including at least one of the following:

[0140] Determine the pilot pattern of PTRS according to the number of PTRS ports;

[0141] Determine a PTRS pilot pattern according to a DMRS port pattern associated with the PTRS;

[0142] Determine the pilot pattern of PTRS according to the modulation and coding mode;

[0143] Determine a pilot pattern of the PTRS according to the allocated frequency domain resources and / or time domain resources;

[0144] Determine the pilot pattern of PTRS according to the working frequency;

[0145] Determine the pilot pattern of PTRS according to the transmission mode / technology type;

[0146] Determine the pilot pattern of PTRS according to the DCI type;

[0147] Determine a dense pilot pattern of PTRS according to a PTRS power parameter;

[0148] Determine the pilot pattern of PTRS according to the mapping of code stream to layer;

[0149] Determine a pilot pattern of PTRS according to a multiple access method;

[0150] Determine the pilot pattern of PTRS according to the value of OCC;

[0151] The pilot pattern of the PTRS is determined according to the maximum number of PTRS REs.

[0152] In the embodiment of the present invention, when the configuration parameter is a resource configuration parameter, the second node determines the maximum number of subcarriers or the maximum number of REs of the PTRS port in the frequency domain through the control information sent by the first node.

[0153] The information feedback method of the phase noise pilot provided by the embodiment of the present invention includes:

[0154] The third node sends control information to the fourth node, where the control information is used to feed back received power or quality information of the phase noise pilot to the fourth node.

[0155] In an embodiment of the present invention, the received power or quality information includes at least one of the following:

[0156] Receive power or quality offset between PTRS ports;

[0157] The receive power or quality offset of PTRS relative to DMRS port;

[0158] The receive power or quality offset of the PTRS port relative to the SRS port;

[0159] The received power or quality bias of PTRS relative to data information;

[0160] PTRS received power or quality offset relative to control information;

[0161] The received power or quality offset of PTRS relative to CSI-RS;

[0162] The received power or quality offset of PTRS relative to BRS.

[0163] The phase noise pilot configuration device provided in an embodiment of the present invention is applied to a first node, and the device includes:

[0164] A configuration unit, configured to send control information to the second node, wherein the control information is used to indicate configuration parameters of the phase noise pilot to the second node;

[0165] The phase noise pilot is a phase noise pilot sent by the first node, or a phase noise pilot sent by the second node.

[0166] In the embodiment of the present invention, when the configuration parameter is a power configuration parameter, the configuration parameter includes at least one of the following:

[0167] Transmit power offset between PTRS ports;

[0168] The transmit power offset of PTRS relative to the DMRS port;

[0169] The transmit power offset of PTRS relative to the SRS port;

[0170] PTRS transmit power offset relative to data information;

[0171] PTRS transmit power offset relative to control information;

[0172] Transmit power offset of PTRS relative to CSI-RS;

[0173] The transmit power offset of PTRS relative to BRS.

[0174] In the embodiment of the present invention, when the configuration parameter is a power configuration parameter, the configuration unit is specifically configured to: indicate the configuration parameter by at least one of the following:

[0175] indicating the bias value through control information;

[0176] Indicating a biased reference object through control information;

[0177] Indicating a power offset value through precoding information;

[0178] Indicates the reference signal information associated with PTRS power.

[0179] In the embodiment of the present invention, the configuration unit is specifically used to indicate the configuration parameter by at least one of the following:

[0180] Indicates the selection information of the associated SRS port of the PTRS port power;

[0181] Indicating selection information of associated DMRS ports of PTRS port power;

[0182] Indicating the selection information of the associated CSI-RS port of the PTRS port power;

[0183] Indicates the selection information of the associated BRS port of the PTRS port power.

[0184] In an embodiment of the present invention, the configuration unit is specifically used to: indicate the configuration parameter by: indicating the reference signal type associated with the PTRS port power, wherein the type includes at least one of the following: DMRS, SRS, CSI-RS, BRS.

[0185] In the embodiment of the present invention, the reference signal information indicating PTRS power association includes: indicating that the PTRS power is the same as the power of the associated reference signal port; or indicating that the PTRS power is the sum of the powers of the associated reference signal ports.

[0186] In the embodiment of the present invention, when the configuration parameter is a precoding configuration parameter, the configuration unit is specifically used to: indicate the configuration parameter by: indicating an associated reference signal of PTRS port precoding.

[0187] In the embodiment of the present invention, the configuration unit is specifically used to indicate the configuration parameter by at least one of the following:

[0188] Indicates the selection information of the associated SRS port for PTRS port precoding;

[0189] Indicates the selection information of the associated DMRS port of the PTRS port precoding;

[0190] Indicates the selection information of the associated CSI-RS port for PTRS port precoding;

[0191] Indicates the selection information of the associated BRS port for PTRS port precoding.

[0192] In the embodiment of the present invention, the configuration unit is specifically used to: indicate the configuration parameters by: notifying the reference signal type associated with the PTRS port precoding, wherein the type includes at least one of the following: DMRS, SRS, CSI-RS, BRS.

[0193] In the embodiment of the present invention, the associated reference signal indicating PTRS port precoding includes: indicating that the PTRS port precoding is the same as the associated reference signal port precoding; or indicating that the PTRS port precoding is a weighted combination of the associated reference signal ports.

[0194] In the embodiment of the present invention, when the configuration parameter is a density configuration parameter, the configuration unit is specifically configured to indicate the configuration parameter by at least one of the following:

[0195] An associated reference signal indicating the PTRS port density;

[0196] Indicates the PTRS port density relative to the associated reference signal multiple.

[0197] In the embodiment of the present invention, the PTRS port density is the same as the density of the associated reference signal ports; or the PTRS port density is an integer multiple of the density of the associated reference signal ports.

[0198] In the embodiment of the present invention, when the configuration parameter is a sequence configuration parameter, the configuration unit is specifically used to: indicate the configuration parameter by: indicating an associated reference signal of a PTRS port sequence.

[0199] In the embodiment of the present invention, the associated reference signal indicating the PTRS port sequence includes: indicating that the PTRS sequence is the same as the sequence parameter of the associated reference signal port, wherein the sequence parameter includes at least one of the following: sequence type, sequence initialization parameter.

[0200] In the embodiment of the present invention, when the configuration parameter is a quasi-co-location parameter, the configuration unit is specifically configured to indicate the configuration parameter by at least one of the following:

[0201] Indicating selection information of SRS ports quasi-co-located with PTRS ports;

[0202] Indicating selection information of DMRS ports quasi-co-located with PTRS ports;

[0203] Indicating selection information of associated CSI-RS ports of quasi-co-location of PTRS ports;

[0204] Indicates the selection information of the BRS port where the PTRS port is quasi-co-located.

[0205] In the embodiment of the present invention, when the configuration parameter is a resource configuration parameter, the configuration unit is specifically used to: indicate the configuration parameter by: indicating the maximum number of subcarriers or the maximum number of REs of the PTRS port in the frequency domain.

[0206] In an embodiment of the present invention, when the configuration parameter is a parameter indicating the association relationship between a DMRS port and a PTRS port, the first node indicates PTRS grouping information associated with the DMRS port through signaling, and / or the first node indicates DMRS port grouping information associated with the PTRS port through signaling.

[0207] The phase noise pilot determination device provided by the embodiment of the present invention is applied to the second node, and the device includes:

[0208] A determining unit, configured to determine configuration parameters of a phase noise pilot through control information sent by the first node and / or through an agreed implicit rule;

[0209] The phase noise pilot is a phase noise pilot sent by the first node, or a phase noise pilot sent by the second node.

[0210] In the embodiment of the present invention, when the configuration parameter is a DMRS port and PTRS port association relationship indication parameter, the second node determines the DMRS port and PTRS port association relationship by an agreed implicit rule, specifically including at least one of the following:

[0211] Determine the grouping method of PTRS according to the number of PTRS ports;

[0212] Determine the grouping method of PTRS according to the PTRS density parameter;

[0213] Determine the grouping method of PTRS according to the modulation and coding method;

[0214] Determine a PTRS grouping method according to the allocated frequency domain resources and / or time domain resources;

[0215] Determine the PTRS grouping method based on the operating frequency;

[0216] Determine the grouping method of PTRS according to the transmission mode / technology type;

[0217] Determine the PTRS grouping method based on the DCI type;

[0218] Determine the PTRS grouping method based on the PTRS power parameters;

[0219] Determine the PTRS grouping method based on the mapping of code streams to layers;

[0220] Determine the grouping method of PTRS according to the multiple access method;

[0221] Determine the PTRS grouping method based on the OCC value;

[0222] The PTRS density is determined based on the maximum number of PTRS REs.

[0223] In the embodiment of the present invention, when the configuration parameter is a precoding indication parameter, the second node determines the PTRS precoding by an agreed implicit rule, specifically including:

[0224] A codeword is selected from a precoding set for PTRS precoding according to an agreed time domain and / or time domain resource position.

[0225] In an embodiment of the present invention, when the configuration parameter is a PTRS transmission status indication parameter, the second node determines the PTRS transmission status according to the PTRS transmission status configuration signaling and MCS method sent by the first node, and the transmission status includes at least one of the following: no transmission, zero power transmission, and non-zero power transmission.

[0226] In the embodiment of the present invention, when the configuration parameter is a power configuration parameter, the configuration parameter includes at least one of the following:

[0227] Transmit power offset between PTRS ports;

[0228] The transmit power offset of PTRS relative to the DMRS port;

[0229] The transmit power offset of PTRS relative to the SRS port;

[0230] PTRS transmit power offset relative to data information;

[0231] PTRS transmit power offset relative to control information;

[0232] Transmit power offset of PTRS relative to CSI-RS;

[0233] The transmit power offset of PTRS relative to BRS.

[0234] In the embodiment of the present invention, when the configuration parameter is a power configuration parameter, the determination unit determines at least one of the following information through control information sent by the first node: a power offset value, a reference object of the offset, and a precoding weight.

[0235] In the embodiment of the present invention, when the configuration parameter is a power configuration parameter, the determining unit determines at least one of the following information through the control information sent by the first node:

[0236] Selection information of the associated SRS port of the PTRS port power;

[0237] Selection information of DMRS ports associated with PTRS port power;

[0238] Selection information of CSI-RS ports associated with PTRS port power;

[0239] The selection information of the associated BRS port of the PTRS port power.

[0240] In the embodiment of the present invention, when the configuration parameter is a power parameter, the determining unit determines the power parameter of the phase noise pilot by using an agreed implicit rule, specifically including at least one of the following:

[0241] Determine the power parameters of PTRS according to the number of PTRS ports;

[0242] Determine a PTRS power parameter based on the number of DMRS ports associated with the PTRS;

[0243] Determine a PTRS power parameter according to the power of the DMRS associated with the PTRS;

[0244] Determine the power parameters of PTRS according to the modulation and coding method;

[0245] Determine a power parameter of the PTRS according to the allocated frequency domain resources and / or time domain resources;

[0246] Determine the power parameters of PTRS according to the operating frequency;

[0247] Determine the power parameters of PTRS based on the transmission mode / technology type;

[0248] Determine the power parameters of PTRS according to the DCI type;

[0249] Determine the power parameters of PTRS according to the PTRS time / frequency density;

[0250] Determine the power parameters of PTRS based on the mapping of code streams to layers;

[0251] Determine the power parameters of PTRS according to the multiple access mode;

[0252] Determine the power parameters of PTRS according to the value of OCC;

[0253] Determine the power parameter of PTRS according to the sequence of PTRS;

[0254] Determine the power parameters of PTRS based on the quasi-co-location relationship between PTRS and other reference signals;

[0255] The power parameter includes a power absolute value or a power offset value.

[0256] In the embodiment of the present invention, when the configuration parameter is a density parameter, the determination unit determines the density of the phase noise pilot by using an agreed implicit rule, specifically including at least one of the following:

[0257] Determine the density parameter of PTRS according to the number of PTRS ports;

[0258] Determine a PTRS density parameter based on the number of DMRS ports associated with the PTRS;

[0259] Determine a PTRS density parameter according to the density of the DMRS associated with the PTRS;

[0260] Determine the density parameters of PTRS according to the modulation and coding method;

[0261] Determine a density parameter of the PTRS according to the allocated frequency domain resources and / or time domain resources;

[0262] Determine the density parameters of PTRS according to the operating frequency;

[0263] Determine the density parameters of PTRS based on the transmission mode / technology type;

[0264] Determine the density parameters of PTRS according to the DCI type;

[0265] Determine the density parameter of PTRS according to the PTRS power parameter;

[0266] Determine the density parameters of PTRS based on the mapping of code streams to layers;

[0267] Determine the density parameters of PTRS according to the multiple access method;

[0268] Determine the density parameter of PTRS according to the value of OCC;

[0269] The PTRS density is determined based on the maximum number of PTRS REs;

[0270] Determining PTRS density based on a quasi-co-location relationship between PTRS and other reference signals with respect to frequency offset or Doppler shift;

[0271] The density parameter includes time domain density and / or frequency domain density.

[0272] In the embodiment of the present invention, when the configuration parameter is the number of ports, the determining unit determines the number of ports of the phase noise pilot by using an agreed implicit rule, specifically including at least one of the following:

[0273] Determine the number of PTRS ports based on the density of PTRS;

[0274] Determine the number of PTRS ports based on the modulation and coding method;

[0275] Determine the number of PTRS ports according to the allocated frequency domain resources and / or time domain resources;

[0276] Determine the number of PTRS ports based on the operating frequency;

[0277] Determine the number of PTRS ports based on the transmission mode / technology type;

[0278] Determine the number of PTRS ports based on the DCI type;

[0279] Determine the number of PTRS ports based on PTRS time / frequency density;

[0280] Determine the number of PTRS ports based on the mapping of code streams to layers;

[0281] Determine the number of PTRS ports based on the multiple access method;

[0282] Determine the number of PTRS ports based on the value of OCC;

[0283] The number of ports of PTRS is determined according to the quasi-co-location relationship between PTRS and other reference signals.

[0284] In the embodiment of the present invention, when the configuration parameter is a sequence parameter, the determining unit determines the sequence parameter of the phase noise pilot by using an agreed implicit rule, specifically including at least one of the following:

[0285] Determine the sequence parameters of PTRS according to the modulation and coding mode;

[0286] Determine a sequence parameter of the PTRS according to the allocated frequency domain resources and / or time domain resources;

[0287] Determine the sequence parameters of PTRS according to the operating frequency;

[0288] Determine the sequence parameters of PTRS according to the transmission mode / technology type;

[0289] Determine the sequence parameters of PTRS according to the DCI type;

[0290] Determine the sequence parameters of PTRS according to the multiple access mode;

[0291] Determining a PTRS sequence parameter according to a reference signal sequence parameter associated with the PTRS;

[0292] The sequence parameters include at least one of the following: sequence initialization parameters and sequence type.

[0293] In the embodiment of the present invention, when the configuration parameter is a noise pilot pattern, the determining unit determines the phase noise pilot pattern by using an agreed implicit rule, specifically including at least one of the following:

[0294] Determine the pilot pattern of PTRS according to the number of PTRS ports;

[0295] Determine a PTRS pilot pattern according to a DMRS port pattern associated with the PTRS;

[0296] Determine the pilot pattern of PTRS according to the modulation and coding mode;

[0297] Determine a pilot pattern of the PTRS according to the allocated frequency domain resources and / or time domain resources;

[0298] Determine the pilot pattern of PTRS according to the working frequency;

[0299] Determine the pilot pattern of PTRS according to the transmission mode / technology type;

[0300] Determine the pilot pattern of PTRS according to the DCI type;

[0301] Determine a dense pilot pattern of PTRS according to a PTRS power parameter;

[0302] Determine the pilot pattern of PTRS according to the mapping of code stream to layer;

[0303] Determine a pilot pattern of PTRS according to a multiple access method;

[0304] Determine the pilot pattern of PTRS according to the value of OCC;

[0305] The pilot pattern of the PTRS is determined according to the maximum number of PTRS REs.

[0306] In the embodiment of the present invention, when the configuration parameter is a resource configuration parameter, the determination unit determines the maximum number of subcarriers or the maximum number of REs of the PTRS port in the frequency domain through control information sent by the first node.

[0307] The phase noise pilot information feedback device provided by the embodiment of the present invention is applied to a third node, and the device includes:

[0308] A feedback unit is used to send control information to the fourth node, where the control information is used to feed back received power or quality information of the phase noise pilot to the fourth node.

[0309] In an embodiment of the present invention, the received power or quality information includes at least one of the following:

[0310] Receive power or quality offset between PTRS ports;

[0311] The receive power or quality offset of PTRS relative to DMRS port;

[0312] The receive power or quality offset of the PTRS port relative to the SRS port;

[0313] The received power or quality bias of PTRS relative to data information;

[0314] PTRS received power or quality offset relative to control information;

[0315] The received power or quality offset of PTRS relative to CSI-RS;

[0316] The received power or quality offset of PTRS relative to BRS.

[0317] In the technical solution of the embodiment of the present invention, the first node sends control information to the second node, and the control information is used to indicate the configuration parameters of the phase noise pilot to the second node; wherein the phase noise pilot is the phase noise pilot sent by the first node, or the phase noise pilot sent by the second node. The second node determines the configuration parameters of the phase noise pilot through the control information sent by the first node, and / or through the agreed implicit rules. The third node sends control information to the fourth node, and the control information is used to feedback the received power or quality information of the phase noise pilot to the fourth node. The technical solution of the embodiment of the present invention can effectively save pilot overhead and improve estimation performance, with higher flexibility and less impact when interfered or there is a blocking problem. BRIEF DESCRIPTION OF THE DRAWINGS

[0318] The drawings illustrate generally, by way of example and not limitation, various embodiments discussed herein.

[0319] Figure 1 This is a block diagram of an OFDM system with phase noise;

[0320] Figure 2 Schematic diagram of phase noise pilot;

[0321] Figure 3 A schematic diagram of a flow chart of a method for configuring a phase noise pilot according to an embodiment of the present invention;

[0322] Figure 4 A schematic diagram of a flow chart of a method for determining a phase noise pilot according to an embodiment of the present invention;

[0323] Figure 5 A schematic flow chart of a method for feeding back information of a phase noise pilot according to an embodiment of the present invention;

[0324] Figure 6 A composition diagram of a phase noise pilot configuration device according to an embodiment of the present invention;

[0325] Figure 7 A composition diagram of a device for determining a phase noise pilot according to an embodiment of the present invention;

[0326] Figure 8 It is a composition diagram of the information feedback device of the phase noise pilot according to an embodiment of the present invention. DETAILED DESCRIPTION

[0327] In order to enable a more detailed understanding of the features and technical contents of the embodiments of the present invention, the implementation of the embodiments of the present invention is described in detail below in conjunction with the accompanying drawings. The attached drawings are for reference only and are not intended to limit the embodiments of the present invention.

[0328] In actual communication systems, phase noise always exists from all places where LO is used. For an OFDM system, the importance of maintaining orthogonality between subcarriers is obvious, so the phase noise in the OFDM system mainly considers the phase noise from the local oscillator at the transmitter and receiver. An OFDM system with phase noise is as follows: Figure 1 shown.

[0329] Figure 1 The OFDM system has N subcarriers and the length of the useful symbol is T u , then the interval between subcarriers is B u =1 / T u , the system bandwidth is B = NB u . Assume that the equivalent phase noise is because Random changes over time can be considered a random process, so θ(t) can also be considered a random process.

[0330] Phase noise is another way to measure the timing variation of a signal, and its results are displayed in the frequency domain. Use an oscillator signal to explain phase noise. If there is no phase noise, the entire power of the oscillator should be concentrated at the frequency f=fo. However, the appearance of phase noise extends part of the oscillator's power to adjacent frequencies, generating sidebands, which is equivalent to affecting the surrounding subcarriers, thus causing performance loss.

[0331] The magnitude of phase noise is related to frequency. In high-frequency systems, the phase noise problem will be more serious. Since this noise is essentially a multiplicative noise, it cannot be improved by increasing power or multi-antenna shaping like additive noise. Therefore, it is necessary to introduce a phase noise measurement pilot to compensate for the impact of phase noise. The phase noise compensation pilot can be referred to as PTRS. Figure 2 By measuring the high-density phase noise pilot in the time domain, the terminal can estimate the phase noise and compensate for it during demodulation, thereby improving the performance when using high-order coding modulation and avoiding the impact of phase.

[0332] In the communication system, the PTRS design is relatively simple. Generally, each transmission layer corresponds to a PTRS. Here, the correspondence generally indicates that the phase noise is correlated, and other description methods are not excluded, such as joint demodulation. However, in a multi-antenna system, the use of multiple transmission layers for transmission is a very typical situation. Therefore, the main problem with this PTRS transmission method is that the overhead is large, which will cause unnecessary waste of pilot overhead. Another design is that when multi-layer transmission is used in a multi-antenna system, all layers correspond to the same PTRS port, but this method is very inflexible. When transmitting at multiple different transmitting nodes, it may cause inaccurate phase noise estimation. This situation is mainly because different nodes may have different local oscillator LOs. The above PTRS design has at least the following problems:

[0333] 1) There is a lack of a flexible and effective way to ensure PTRS performance while minimizing its overhead. This problem exists in both uplink (terminal to base station) and downlink (base station to terminal) as well as base station to base station and terminal to terminal communications.

[0334] In addition, there is no good technology to control the power of PTRS in the uplink, and there is no mechanism to notify its related power in the downlink.

[0335] 2) There is no relevant mechanism for PTRS power control or power indication, and it is not possible to make a good compromise between PTRS power and performance.

[0336] 3) The transmission precoding of PTRS is associated with the precoding of the first layer. One problem with this approach is that if PTRS is interfered with after using the precoding, or if there is blocking that is easy to occur in high frequencies in the space corresponding to this layer, its performance cannot be guaranteed. If the PTRS corresponds to multiple layers, once a problem occurs, it will have a relatively large impact. In addition, considering the flexibility of mapping, it cannot be guaranteed that the first layer is the layer with the best transmission performance in all cases. Therefore, the precoding of PTRS has the problem of poor robustness and lack of flexibility.

[0337] Figure 3 FIG. 1 is a flow chart of a method for configuring a phase noise pilot according to an embodiment of the present invention. Figure 3 As shown, the configuration method of the phase noise pilot includes:

[0338] Step 301: A first node sends control information to a second node, where the control information is used to indicate configuration parameters of a phase noise pilot to the second node; wherein the phase noise pilot is a phase noise pilot sent by the first node, or a phase noise pilot sent by the second node.

[0339] In the embodiment of the present invention, when the configuration parameter is a power configuration parameter, the configuration parameter includes at least one of the following:

[0340] Transmit power offset between PTRS ports;

[0341] The transmit power offset of PTRS relative to the demodulation reference signal (DMRS) port;

[0342] The transmit power offset of PTRS relative to the Sounding Reference Signal (SRS) port;

[0343] PTRS transmit power offset relative to data information;

[0344] PTRS transmit power offset relative to control information;

[0345] The transmit power offset of PTRS relative to the Channel State Information-Reference Signal (CSI-RS);

[0346] The transmit power offset of PTRS relative to BRS.

[0347] In the embodiment of the present invention, when the configuration parameter is a power configuration parameter, the method for indicating the configuration parameter includes at least one of the following:

[0348] indicating the bias value through control information;

[0349] Indicating a biased reference object through control information;

[0350] Indicating a power offset value through precoding information;

[0351] Indicates the reference signal information associated with PTRS power.

[0352] The method for indicating the configuration parameters further includes at least one of the following:

[0353] Indicates the selection information of the associated SRS port of the PTRS port power;

[0354] Indicating selection information of associated DMRS ports of PTRS port power;

[0355] Indicating the selection information of the associated CSI-RS port of the PTRS port power;

[0356] Indicates the selection information of the associated BRS port of the PTRS port power.

[0357] The method for indicating the configuration parameters further includes: indicating a reference signal type associated with the PTRS port power, wherein the type includes at least one of the following: DMRS, SRS, CSI-RS, BRS.

[0358] The reference signal information indicating the PTRS power association includes: indicating that the PTRS power is the same as the power of the associated reference signal port; or indicating that the PTRS power is the sum of the powers of the associated reference signal ports.

[0359] In the embodiment of the present invention, when the configuration parameter is a precoding configuration parameter, the method for indicating the configuration parameter includes: indicating an associated reference signal of PTRS port precoding.

[0360] The method for indicating the configuration parameters further includes at least one of the following:

[0361] Indicates the selection information of the associated SRS port for PTRS port precoding;

[0362] Indicates the selection information of the associated DMRS port of the PTRS port precoding;

[0363] Indicates the selection information of the associated CSI-RS port for PTRS port precoding;

[0364] Indicates the selection information of the associated BRS port for PTRS port precoding.

[0365] The method for indicating the configuration parameters further includes: notifying the reference signal type associated with the PTRS port precoding, wherein the type includes at least one of the following: DMRS, SRS, CSI-RS, BRS.

[0366] The associated reference signal indicating the PTRS port precoding includes: indicating that the PTRS port precoding is the same as the associated reference signal port precoding; or indicating that the PTRS port precoding is a weighted combination of the associated reference signal ports.

[0367] In the embodiment of the present invention, when the configuration parameter is a density configuration parameter, the method for indicating the configuration parameter includes at least one of the following:

[0368] An associated reference signal indicating the PTRS port density;

[0369] Indicates the PTRS port density relative to the associated reference signal multiple.

[0370] The PTRS port density is the same as the density of the associated reference signal ports; or the PTRS port density is an integer multiple of the density of the associated reference signal ports.

[0371] In the embodiment of the present invention, when the configuration parameter is a sequence configuration parameter, the method for indicating the configuration parameter includes: indicating an associated reference signal of a PTRS port sequence.

[0372] In the embodiment of the present invention, the associated reference signal indicating the PTRS port sequence includes: indicating that the PTRS sequence is the same as the sequence parameter of the associated reference signal port, wherein the sequence parameter includes at least one of the following: sequence type, sequence initialization parameter.

[0373] In the embodiment of the present invention, when the configuration parameter is a quasi-co-location parameter, the method for indicating the configuration parameter includes at least one of the following:

[0374] Indicating selection information of SRS ports quasi-co-located with PTRS ports;

[0375] Indicating selection information of DMRS ports quasi-co-located with PTRS ports;

[0376] Indicating selection information of associated CSI-RS ports of quasi-co-location of PTRS ports;

[0377] Indicates the selection information of the BRS port where the PTRS port is quasi-co-located.

[0378] In the embodiment of the present invention, when the configuration parameter is a resource configuration parameter, the method for indicating the configuration parameter includes: indicating a maximum number of subcarriers or a maximum number of REs of a PTRS port in the frequency domain.

[0379] In an embodiment of the present invention, when the configuration parameter is a parameter indicating the association relationship between a DMRS port and a PTRS port, the first node indicates PTRS grouping information associated with the DMRS port through signaling, and / or the first node indicates DMRS port grouping information associated with the PTRS port through signaling.

[0380] Assume that there are DMRS port p1…pn and PTRS port q1…qn.

[0381] The DMRS ports are grouped into X groups, each of which may include one or more DMRS ports. The grouping method may be determined based on a mapping method from antennas to pilot ports, or based on a mapping method from codeword streams to ports.

[0382] The first transmitting node determines the PTRS port group information associated with some or all DMRS port groups, where the association means that there are similar phase noise characteristics. A DMRS port group corresponds to a group of PTRS ports. The first transmitting node indicates which PTRS ports are included in the PTRS port group associated with the DMRS port group through signaling.

[0383] Alternatively, the first sending node determines the DMRS port group information associated with some or all PTRS port groups, where the association means that similar phase noise characteristics are considered. A PTRS port group corresponds to a group of DMRS ports. The first sending node indicates which DMRS ports are included in the DMRS port group associated with the PTRS port group through signaling.

[0384] Figure 4 FIG. 1 is a flow chart of a method for determining a phase noise pilot according to an embodiment of the present invention. Figure 4 As shown, the phase noise pilot determination method includes:

[0385] Step 401: The second node determines the configuration parameters of the phase noise pilot through the control information sent by the first node and / or through an agreed implicit rule; wherein the phase noise pilot is the phase noise pilot sent by the first node, or is the phase noise pilot sent by the second node.

[0386] In the embodiment of the present invention, when the configuration parameter is a DMRS port and PTRS port association relationship indication parameter, the second node determines the DMRS port and PTRS port association relationship by an agreed implicit rule, specifically including at least one of the following:

[0387] Determine the grouping method of PTRS according to the number of PTRS ports;

[0388] Determine the grouping method of PTRS according to the PTRS density parameter;

[0389] Determine the grouping method of PTRS according to the modulation and coding method;

[0390] Determine a PTRS grouping method according to the allocated frequency domain resources and / or time domain resources;

[0391] Determine the PTRS grouping method based on the operating frequency;

[0392] Determine the grouping method of PTRS according to the transmission mode / technology type;

[0393] Determine the PTRS grouping method based on the DCI type;

[0394] Determine the PTRS grouping method based on the PTRS power parameters;

[0395] Determine the PTRS grouping method based on the mapping of code streams to layers;

[0396] Determine the grouping method of PTRS according to the multiple access method;

[0397] Determine the PTRS grouping method based on the OCC value;

[0398] The PTRS density is determined based on the maximum number of PTRS REs.

[0399] In the embodiment of the present invention, when the configuration parameter is a precoding indication parameter, the second node determines the PTRS precoding by an agreed implicit rule, specifically including:

[0400] A codeword is selected from a precoding set for PTRS precoding according to an agreed time domain and / or time domain resource position.

[0401] Specifically, for example, the precoding of the PTRS port is defined on the DMRS port. Assuming there are p DMRS ports and q PTRS ports, the precoding should be a q*p matrix, that is, the PTRS port is a linear combination of the DMRS port. This matrix can be selected from a precoding set, which can be some agreed codewords or some codewords configured by the base station. The selection rule can be to select different codewords on different time-frequency resources, and the selection rule can be agreed in advance. The precoding of PTRS can be determined according to the location of the time-frequency resources.

[0402] In an embodiment of the present invention, when the configuration parameter is a PTRS transmission status indication parameter, the second node determines the PTRS transmission status according to the PTRS transmission status configuration signaling and MCS method sent by the first node, and the transmission status includes at least one of the following: no transmission, zero power transmission, and non-zero power transmission.

[0403] Specifically, the base station sends a 1-bit signaling to indicate the PTRS transmission status, and the terminal determines the PTRS transmission status according to the indication signaling combined with the MCS mode, including:

[0404] Not sending: There is no PTRS. There is no need to reserve resources for PTRS. These resources can be used to send other channels or signals.

[0405] Zero power transmission: No PTRS is sent, but these positions need to be reserved.

[0406] Non-zero power transmission: sending PTRS signals.

[0407] If the 1-bit signaling indicates that the PTRS exists and the MCS is low, the second node may consider that it is necessary to send a zero-power PTRS.

[0408] If the 1-bit signaling indicates that the PTRS exists and the MCS is relatively high, the second node may consider that it is necessary to send a PTRS with non-zero power.

[0409] If the 1-bit signaling indicates that the PTRS does not exist, the second node may consider that it is not necessary to send the PTRS.

[0410] In the embodiment of the present invention, when the configuration parameter is a power configuration parameter, the configuration parameter includes at least one of the following:

[0411] Transmit power offset between PTRS ports;

[0412] The transmit power offset of PTRS relative to the DMRS port;

[0413] The transmit power offset of PTRS relative to the SRS port;

[0414] PTRS transmit power offset relative to data information;

[0415] PTRS transmit power offset relative to control information;

[0416] Transmit power offset of PTRS relative to CSI-RS;

[0417] The transmit power offset of PTRS relative to BRS.

[0418] In the embodiment of the present invention, when the configuration parameter is a power configuration parameter, the second node determines at least one of the following information through the control information sent by the first node: a power offset value, a reference object of the offset, and a precoding weight.

[0419] In the embodiment of the present invention, when the configuration parameter is a power configuration parameter, the second node determines at least one of the following information through the control information sent by the first node:

[0420] Selection information of the associated SRS port of the PTRS port power;

[0421] Selection information of DMRS ports associated with PTRS port power;

[0422] Selection information of CSI-RS ports associated with PTRS port power;

[0423] The selection information of the associated BRS port of the PTRS port power.

[0424] In the embodiment of the present invention, when the configuration parameter is a power parameter, the second node determines the power parameter of the phase noise pilot by using an agreed implicit rule, specifically including at least one of the following:

[0425] Determine the power parameters of PTRS according to the number of PTRS ports;

[0426] Determine a PTRS power parameter based on the number of DMRS ports associated with the PTRS;

[0427] Determine a PTRS power parameter according to the power of the DMRS associated with the PTRS;

[0428] Determine the power parameters of PTRS according to the modulation and coding method;

[0429] Determine a power parameter of the PTRS according to the allocated frequency domain resources and / or time domain resources;

[0430] Determine the power parameters of PTRS according to the operating frequency;

[0431] Determine the power parameters of PTRS based on the transmission mode / technology type;

[0432] Determine the power parameters of PTRS according to the type of downlink control information (DCI);

[0433] Determine the power parameters of PTRS according to the PTRS time / frequency density;

[0434] Determine the power parameters of PTRS based on the mapping of code streams to layers;

[0435] Determine the power parameters of PTRS according to the multiple access mode;

[0436] Determine the power parameters of PTRS according to the value of OCC;

[0437] Determine the power parameter of PTRS according to the sequence of PTRS;

[0438] Determine the power parameters of PTRS based on the quasi-co-location relationship between PTRS and other reference signals;

[0439] The power parameter includes a power absolute value or a power offset value.

[0440] In the embodiment of the present invention, when the configuration parameter is a density parameter, the second node determines the density of the phase noise pilot by using an agreed implicit rule, specifically including at least one of the following:

[0441] Determine the density parameter of PTRS according to the number of PTRS ports;

[0442] Determine a PTRS density parameter based on the number of DMRS ports associated with the PTRS;

[0443] Determine a PTRS density parameter according to the density of the DMRS associated with the PTRS;

[0444] Determine the density parameters of PTRS according to the modulation and coding method;

[0445] Determine a density parameter of the PTRS according to the allocated frequency domain resources and / or time domain resources;

[0446] Determine the density parameters of PTRS according to the operating frequency;

[0447] Determine the density parameters of PTRS based on the transmission mode / technology type;

[0448] Determine the density parameters of PTRS according to the DCI type;

[0449] Determine the density parameter of PTRS according to the PTRS power parameter;

[0450] Determine the density parameters of PTRS based on the mapping of code streams to layers;

[0451] Determine the density parameters of PTRS according to the multiple access method;

[0452] Determine the density parameter of PTRS according to the value of OCC;

[0453] The PTRS density is determined based on the maximum number of PTRS REs;

[0454] Determining PTRS density based on a quasi-co-location relationship between PTRS and other reference signals with respect to frequency offset or Doppler shift;

[0455] The density parameter includes time domain density and / or frequency domain density.

[0456] In the embodiment of the present invention, when the configuration parameter is the number of ports, the second node determines the number of ports of the phase noise pilot by using an agreed implicit rule, specifically including at least one of the following:

[0457] Determine the number of PTRS ports based on the density of PTRS;

[0458] Determine the number of PTRS ports based on the modulation and coding method;

[0459] Determine the number of PTRS ports according to the allocated frequency domain resources and / or time domain resources;

[0460] Determine the number of PTRS ports based on the operating frequency;

[0461] Determine the number of PTRS ports based on the transmission mode / technology type;

[0462] Determine the number of PTRS ports based on the DCI type;

[0463] Determine the number of PTRS ports based on PTRS time / frequency density;

[0464] Determine the number of PTRS ports based on the mapping of code streams to layers;

[0465] Determine the number of PTRS ports based on the multiple access method;

[0466] Determine the number of PTRS ports based on the value of OCC;

[0467] The number of ports of PTRS is determined according to the quasi-co-location relationship between PTRS and other reference signals.

[0468] In the embodiment of the present invention, when the configuration parameter is a sequence parameter, the second node determines the sequence parameter of the phase noise pilot by using an agreed implicit rule, specifically including at least one of the following:

[0469] Determine the sequence parameters of PTRS according to the modulation and coding mode;

[0470] Determine a sequence parameter of the PTRS according to the allocated frequency domain resources and / or time domain resources;

[0471] Determine the sequence parameters of PTRS according to the operating frequency;

[0472] Determine the sequence parameters of PTRS according to the transmission mode / technology type;

[0473] Determine the sequence parameters of PTRS according to the DCI type;

[0474] Determine the sequence parameters of PTRS according to the multiple access mode;

[0475] Determining a PTRS sequence parameter according to a reference signal sequence parameter associated with the PTRS;

[0476] The sequence parameters include at least one of the following: sequence initialization parameters and sequence type.

[0477] In the embodiment of the present invention, when the configuration parameter is a noise pilot pattern, the second node determines the phase noise pilot pattern by using an agreed implicit rule, specifically including at least one of the following:

[0478] Determine the pilot pattern of PTRS according to the number of PTRS ports;

[0479] Determine a PTRS pilot pattern according to a DMRS port pattern associated with the PTRS;

[0480] Determine the pilot pattern of PTRS according to the modulation and coding mode;

[0481] Determine a pilot pattern of the PTRS according to the allocated frequency domain resources and / or time domain resources;

[0482] Determine the pilot pattern of PTRS according to the working frequency;

[0483] Determine the pilot pattern of PTRS according to the transmission mode / technology type;

[0484] Determine the pilot pattern of PTRS according to the DCI type;

[0485] Determine a dense pilot pattern of PTRS according to a PTRS power parameter;

[0486] Determine the pilot pattern of PTRS according to the mapping of code stream to layer;

[0487] Determine a pilot pattern of PTRS according to a multiple access method;

[0488] Determine the pilot pattern of PTRS according to the value of OCC;

[0489] The pilot pattern of the PTRS is determined according to the maximum number of PTRS REs.

[0490] In the embodiment of the present invention, when the configuration parameter is a resource configuration parameter, the second node determines the maximum number of subcarriers or the maximum number of REs of the PTRS port in the frequency domain through the control information sent by the first node.

[0491] Figure 5 FIG. 1 is a flow chart of a method for feeding back information of a phase noise pilot according to an embodiment of the present invention. Figure 5 As shown, the information feedback method of the phase noise pilot includes:

[0492] Step 501: The third node sends control information to the fourth node, where the control information is used to feed back received power or quality information of the phase noise pilot to the fourth node.

[0493] In an embodiment of the present invention, the received power or quality information includes at least one of the following:

[0494] Receive power or quality offset between PTRS ports;

[0495] The receive power or quality offset of PTRS relative to DMRS port;

[0496] The receive power or quality offset of the PTRS port relative to the SRS port;

[0497] The received power or quality bias of PTRS relative to data information;

[0498] PTRS received power or quality offset relative to control information;

[0499] The received power or quality offset of PTRS relative to CSI-RS;

[0500] The received power or quality offset of PTRS relative to BRS.

[0501] The technical solution of the embodiment of the present invention is further described in detail below in conjunction with specific application examples.

[0502] Example 1

[0503] The first node sends control information to indicate configuration parameters of the phase noise pilot to the second node.

[0504] Here, preferably, the first node is a base station, and the second node is a terminal;

[0505] Or the first node is a base station, and the second node is also a base station;

[0506] Or the first node is a terminal and the second node is also a terminal;

[0507] Alternatively, the first node is a terminal, and the second node is a base station.

[0508] The configuration parameter of the phase noise pilot may refer to the phase noise pilot sent by the first node;

[0509] The configuration parameter of the phase noise pilot may also refer to the phase noise pilot sent by the second node.

[0510] There are many types of phase noise pilot configuration parameters, including power parameters, density parameters, precoding parameters, sequence parameters and other types of parameters.

[0511] Sub-implementation method 1

[0512] When the parameter is a power configuration parameter, it includes one or more of the following:

[0513] Transmit power offset between PTRS ports; represents the relative difference between PTRS ports;

[0514] The transmit power offset of the PTRS port relative to the DMRS port; represents the relative difference in transmit power between the PTRS port and the DMRS port;

[0515] The transmit power offset of the PTRS port relative to the SRS port; represents the relative difference in transmit power between the PTRS port and the SRS port;

[0516] The transmit power offset of PTRS relative to data information; represents the relative difference in transmit power between PTRS ports and data;

[0517] PTRS transmit power offset relative to control information; characterizes the relative difference in transmit power between PTRS ports and control information;

[0518] The transmit power offset of PTRS relative to CSI-RS; represents the relative difference in transmit power between the PTRS port and the CSI-RS port;

[0519] The transmit power offset of PTRS relative to BRS; represents the relative difference in transmit power between the PTRS port and the BRS port;

[0520] Some of the pilot types mentioned here are described as follows:

[0521] Downlink CSI measurement pilot CSI-RS;

[0522] Uplink sounding pilot SRS.

[0523] These two types of pilots are used for downlink and uplink channel information CSI measurement respectively, and can be sent in a periodic or aperiodic manner. For their specific configuration and use, please refer to the 3rd Generation Partnership Project (3GPP) technical specifications TS 36.211 and TS36.213; both downlink and uplink support measurement pilots of multiple ports.

[0524] With the development of technology, in 5G, due to the introduction of more antennas and more service beams, these pilot signals may adopt some new designs. For example, they will be sent by beam scanning, and the sending configuration will also be more diverse.

[0525] In addition, because there will be some other measurement requirements, such as the received signal quality of some cells / sectors related to mobility management, the measurement of large scale properties, etc., there will be some other types of measurement pilots. This pilot is also a kind of measurement pilot. CSI-RS / SRS can be used to implement the above measurement function, and some other pilots can also be sent additionally, such as beam reference signal (BRS) or other names of some pilots used for measurement.

[0526] DMRS is a general term for demodulation reference pilots, including reference demodulation pilots for data and reference demodulation pilots for control. After obtaining channel information, the transmitter can perform pre-coded data / control transmission based on the channel information, and can use one or more layers of multi-antenna transmission technology. Generally speaking, each layer has a corresponding demodulation reference pilot DMRS, and data or control information is demodulated by combining the channel estimated by the demodulation reference pilot with the received signal; the demodulation reference pilot is divided into uplink demodulation reference pilot DL DMRS and downlink demodulation reference pilot UL DMRS, which are used for downlink control / data demodulation and uplink control / data demodulation respectively.

[0527] When the parameter is a power configuration parameter, the indication method includes one or more of the following:

[0528] 1. The bias value is indicated by control information; the bias value can be expressed in dB;

[0529] The offset may be an offset between ports or a power offset of a PTRS sent on different time domain resources or a PTRS power offset on different frequency domain resources and / or time domain resources or a PTRS power offset on different code domain resources.

[0530] 2. Indicate the biased reference object through control information; for example, whether it is the reference CSI-RS or DL ​​DMRS or BRS, SRS or UL DMRS; it is necessary to indicate which reference signal the reference object is;

[0531] 3. Notify the PTRS power-related reference signal information; for example, which pilot ports are referenced.

[0532] For example:

[0533] Indicates the selection information of the associated SRS port of the PTRS port power;

[0534] Indicating selection information of associated DMRS ports of PTRS port power;

[0535] Indicating the selection information of the associated CSI-RS port of the PTRS port power;

[0536] Indicates the selection information of the associated BRS port of the PTRS port power;

[0537] The association relationship includes that the PTRS power is the same as the power of the associated reference signal port; or is the sum of the powers of the associated reference signal ports.

[0538] 4. The power bias value is indicated by precoding information; for example, a 0 element in a precoding matrix or vector indicates that the corresponding port is not selected, a non-zero element in the precoding matrix indicates that the corresponding port is selected, and the difference in the square of the modulus value of the non-zero element indicates the power difference between the ports.

[0539] The signaling here may be physical layer signaling, MAC layer signaling or high-level RRC signaling.

[0540] Sub-implementation method 2

[0541] When the parameter is a precoding configuration parameter, the first node may indicate the associated reference signal of the PTRS port precoding through signaling; the indication method includes one or more of the following:

[0542] Indicates the selection information of the associated SRS port for PTRS port precoding;

[0543] Indicates the selection information of the associated DMRS port of the PTRS port precoding;

[0544] Indicates the selection information of the associated CSI-RS port for PTRS port precoding;

[0545] Indicates the selection information of the associated BRS port for PTRS port precoding;

[0546] The association relationship includes that the PTRS precoding is the same as the precoding of the associated reference signal port; or is a weighted combination of the associated reference signal ports.

[0547] The indicating method may also include:

[0548] Notify the reference signal type associated with the PTRS port precoding; candidate types include one or more of the following: DMRS, SRS, CSI-RS, BRS.

[0549] Sub-implementation method 3

[0550] When the parameter is a density configuration parameter, the indication method includes one or more of the following: indicating an associated reference signal of the PTRS port density; the association relationship includes that the PTRS density is the same as the density of the associated reference signal port; or an integer multiple thereof; further, it can also indicate a multiple of the PTRS port density relative to the associated reference signal.

[0551] Sub-implementation method 4

[0552] When the parameter is a sequence configuration parameter, the indication method includes one or more of the following: indicating an associated reference signal of a PTRS port sequence;

[0553] The association relationship includes that the sequence parameters of the PTRS sequence and the associated reference signal port are the same; the sequence parameters include one or more of the following: sequence type; sequence initialization parameters.

[0554] Sub-implementation method 5

[0555] When the parameter is a quasi-co-location parameter, the indication method includes one or more of the following:

[0556] Indicating selection information of SRS ports quasi-co-located with PTRS ports;

[0557] Indicating selection information of DMRS ports quasi-co-located with PTRS ports;

[0558] Indicating selection information of associated CSI-RS ports of quasi-co-location of PTRS ports;

[0559] Indicates the selection information of the BRS port where the PTRS port is quasi-co-located.

[0560] Example 2

[0561] This embodiment provides a method for determining a phase noise pilot, including:

[0562] The second node determines the configuration parameter configuration of the phase noise pilot through the configuration signaling sent by the first node;

[0563] Here, preferably, the first node is a base station, and the second node is a terminal;

[0564] Or the first node is a base station, and the second node is also a base station;

[0565] Or the first node is a terminal and the second node is also a terminal;

[0566] Alternatively, the first node is a terminal, and the second node is a base station;

[0567] The configuration parameter of the phase noise pilot may refer to the phase noise pilot sent by the first node;

[0568] The configuration parameter of the phase noise pilot may also refer to the phase noise pilot sent by the second node;

[0569] There are many types of phase noise pilot configuration parameters, including power parameters, density parameters, precoding parameters, sequence parameters and other types of parameters.

[0570] Sub-implementation method 1

[0571] When the parameter is a power parameter, it includes one or more of the following:

[0572] Transmit power offset between PTRS ports; represents the relative difference between PTRS ports;

[0573] The transmit power offset of the PTRS port relative to the DMRS port; represents the relative difference in transmit power between the PTRS port and the DMRS port;

[0574] The transmit power offset of the PTRS port relative to the SRS port; represents the relative difference in transmit power between the PTRS port and the SRS port;

[0575] The transmit power offset of PTRS relative to data information; represents the relative difference in transmit power between PTRS ports and data;

[0576] PTRS transmit power offset relative to control information; characterizes the relative difference in transmit power between PTRS ports and control information;

[0577] The transmit power offset of PTRS relative to CSI-RS; represents the relative difference in transmit power between the PTRS port and the CSI-RS port;

[0578] The transmit power offset of PTRS relative to BRS; represents the relative difference in transmit power between the PTRS port and the BRS port;

[0579] When the parameter is a power configuration parameter, the determination method includes one or more of the following:

[0580] 1. Determine the transmission power offset value between PTRS ports through the control information sent by the first node; the offset value can be expressed in dB; the offset can be the offset between ports or the power offset of PTRS sent on different time domain resources or the PTRS power offset on different frequency domain resources and / or time domain resources or the PTRS power offset on different code domain resources.

[0581] 2. Determine the reference object indicating the bias through control information; for example, whether it is the reference CSI-RS or DL ​​DMRS or BRS, SRS or UL DMRS; it is necessary to determine which reference signal the reference object is through control information.

[0582] 3. Determine the reference signal information associated with the PTRS power through the control information; for example, which pilot ports are referenced.

[0583] For example: determining the selection information of the associated SRS port of the PTRS port power through the control information;

[0584] Determine the selection information of the associated DMRS port of the PTRS port power through the control information;

[0585] Determine the selection information of the CSI-RS port associated with the PTRS port power through the control information;

[0586] Determine the selection information of the associated BRS port of the PTRS port power through the control information;

[0587] The association relationship includes that the PTRS power is the same as the power of the associated reference signal port; or is the sum of the powers of the associated reference signal ports.

[0588] 4. Determine the power bias value through precoding information; for example, a 0 element in a precoding matrix or vector indicates that the corresponding port is not selected, a non-zero element in the precoding matrix indicates that the corresponding port is selected, and the difference in the square of the modulus value of the non-zero element indicates the power difference between the ports.

[0589] The signaling here may be physical layer signaling, MAC layer signaling or high-level RRC signaling.

[0590] Sub-implementation method 2

[0591] When the parameter is a precoding configuration parameter, the second node may determine the associated reference signal indicating the PTRS port precoding through the signaling sent by the first node; the determination method includes one or more of the following:

[0592] Determine the selection information of the associated SRS port of the PTRS port precoding through the control information;

[0593] Determine the selection information of the associated DMRS port of the PTRS port precoding through the control information;

[0594] Determine the selection information of the associated CSI-RS port of the PTRS port precoding through the control information;

[0595] Determine the selection information of the associated BRS port of the PTRS port precoding through the control information;

[0596] The association relationship includes that the PTRS precoding is the same as the precoding of the associated reference signal port; or is a weighted combination of the associated reference signal ports.

[0597] Determining the precoding method by control information may also include:

[0598] The reference signal type associated with the PTRS port precoding is determined through control information; candidate types include one or more of the following: DMRS, SRS, CSI-RS, BRS.

[0599] Sub-implementation method 3

[0600] When the parameter is a density configuration parameter, the method for determining the density parameter through control information includes one or more of the following: determining the associated reference signal of the PTRS port density through control information; the associated relationship includes that the PTRS density is the same as the density of the associated reference signal port; or is an integer multiple thereof; further, the multiple of the PTRS port density relative to the associated reference signal can also be determined through control information.

[0601] Sub-implementation method 4

[0602] When the parameter is a sequence configuration parameter, the method for determining the sequence parameter configuration through the control information includes one or more of the following: determining an associated reference signal of a PTRS port sequence through the control information;

[0603] The association relationship includes that the sequence parameters of the PTRS sequence and the associated reference signal port are the same; the sequence parameters include one or more of the following: sequence type; sequence initialization parameters.

[0604] Sub-implementation method 5

[0605] When the parameter is a quasi-co-location parameter, the method for determining the quasi-co-location relationship through control information includes one or more of the following:

[0606] Determine selection information of the SRS port of the quasi-co-location of the PTRS port through control information;

[0607] Determine selection information of a DMRS port of a quasi-co-location of a PTRS port through control information;

[0608] Determine selection information of associated CSI-RS ports of quasi-co-location of PTRS ports through control information;

[0609] Determine selection information of the BRS port of the quasi-co-location of the PTRS port through control information;

[0610] Example 3

[0611] This embodiment provides a method for determining a phase noise pilot, including:

[0612] The second node determines the configuration parameter configuration of the phase noise pilot through some pre-agreed implicit rules;

[0613] Here, preferably, the first node is a base station, and the second node is a terminal;

[0614] Or the first node is a base station, and the second node is also a base station;

[0615] Or the first node is a terminal and the second node is also a terminal;

[0616] Alternatively, the first node is a terminal, and the second node is a base station;

[0617] The configuration parameter of the phase noise pilot may refer to the phase noise pilot sent by the first node;

[0618] The configuration parameter of the phase noise pilot may also refer to the phase noise pilot sent by the second node;

[0619] There are many types of phase noise pilot configuration parameters, including power parameters, density parameters, precoding parameters, sequence parameters and other types of parameters.

[0620] Sub-implementation method 1

[0621] When the parameter is a power parameter, the second node determines the power of the phase noise pilot by an agreed implicit rule:

[0622] For example, the power parameters of the PTRS are determined according to the number of PTRS ports.

[0623] A typical situation is that the fewer the number of PTRS ports, the higher the transmit power of each port;

[0624] Therefore, the power offset values ​​for different PTRS ports can be agreed upon. A simple example is shown in Table 1:

[0625] 1PTRS port 2PTRS port 4PTRS port 8PTRS port Offset=0dB Offset=-1dB Offset=-3dB Offset=-6dB

[0626] Table 1

[0627] The offset here may be an offset relative to other reference signals or data or control information.

[0628] For example, the PTRS power parameter is determined according to the number of DMRS ports associated with the PTRS.

[0629] The more DMRS ports associated with PTRS, the higher the transmission power, as shown in Table 2.

[0630] 1PTRS port is associated with 1DMRS port 1PTRS port association > 1DMRS port Offset=0dB Offset=3dB

[0631] Table 2

[0632] For example, the PTRS power parameter is determined according to the power of the DMRS associated with the PTRS.

[0633] There is a linear relationship between the power of PTRS and the power of the associated DMRS. The higher the power of the associated DMRS, the higher the power of PTRS.

[0634] For example: determine the power parameters of PTRS according to the modulation and coding method.

[0635] The power of PTRS is related to the modulation and coding mode. When used in a higher-order modulation mode, the power of PTRS will be higher.

[0636] For example: determining the power parameters of the PTRS according to the allocated frequency domain resources and / or time domain resources;

[0637] The power parameter of PTRS is related to the allocated frequency domain resources and / or time domain resources. The fewer the frequency domain resources and / or time domain resources, the higher the transmission power.

[0638] For example: determine the power parameters of PTRS according to the operating frequency;

[0639] The power parameter of PTRS is related to the operating frequency. The higher the frequency, the greater the phase noise and the higher the power bias.

[0640] For example: Determine the power parameters of PTRS based on the transmission mode / technology type;

[0641] The power parameter of PTRS is related to the transmission mode / technology type. Different transmission modes or transmission technologies are affected by phase noise in different ways, so their power biases may be different.

[0642] For example: determining the power parameters of PTRS according to the DCI type;

[0643] The power parameter of PTRS is related to the DCI type. Different DCI types may correspond to different transmission modes or transmission technologies that are affected by different phase noise, so their power offsets may be different.

[0644] For example: determine the power parameters of PTRS based on the PTRS time / frequency density;

[0645] The power parameter of PTRS is related to the time / frequency density of PTRS. The lower the time / frequency density, the higher the power bias can be agreed to be.

[0646] For example: determining the power parameters of PTRS based on the mapping of code streams to layers;

[0647] The power parameter of PTRS is related to the mapping of code streams to layers. When a code stream is mapped to multiple layers but a code stream corresponds to a phase noise pilot of one port, the more layers are mapped, the higher the PTRS power can be.

[0648] For example: determining the power parameters of PTRS according to the multiple access mode;

[0649] Different multiple access modes are affected differently by phase noise. Typical multiple access modes include CP-OFDM and SC-FDMA. Different PTRS power bias parameters can be set for these two multiple access modes.

[0650] For example: determine the power parameters of PTRS based on the value of OCC;

[0651] The longer the OCC is, the more reference signals are multiplexed and the lower the corresponding single-port PTRS power is.

[0652] The OCC here may be the OCC of the PTRS or the OCC of a reference signal associated therewith.

[0653] OCC is the abbreviation of orthogonal code.

[0654] For example: determining the power parameters of PTRS according to the sequence of PTRS;

[0655] Different PTRS sequences or sequences used by reference signals associated therewith may correspond to different power offsets.

[0656] For example: determining the power parameters of PTRS based on the quasi-co-location relationship between PTRS and other reference signals;

[0657] The quasi-co-location relationship between the PTRS and other reference signals can be used to determine the association relationship between the PTRS and other reference signals, and further determine the power parameters of the PTRS.

[0658] Power parameters include absolute power value or power offset value. Absolute power is generally expressed in dBm, and phase power is generally expressed in dB.

[0659] Sub-implementation method 2

[0660] When the parameter is a density parameter, the second node determines the density of the phase noise pilot by an agreed implicit rule:

[0661] For example, the density parameter of PTRS is determined according to the number of PTRS ports.

[0662] Different numbers of PTRS ports may correspond to different PTRS densities. The more the number of ports, the smaller the density may be.

[0663] For example, the PTRS density parameter is determined according to the number of DMRS ports associated with the PTRS.

[0664] The greater the number of DMRS ports associated with PTRS, the greater the density can be.

[0665] For example, the PTRS density parameter is determined according to the density of the DMRS associated with the PTRS.

[0666] The greater the density of DMRS associated with PTRS, the greater the density can be.

[0667] For example: Determine the density parameter of PTRS according to the modulation and coding method.

[0668] The higher the modulation order, the higher the PTRS density.

[0669] For example: determining a density parameter of the PTRS based on the allocated frequency domain resources and / or time domain resources;

[0670] The fewer frequency domain resources and / or time domain resources are allocated, the higher the density can be.

[0671] For example: Determine the density parameters of PTRS based on the operating frequency;

[0672] The higher the operating frequency, the higher the PTRS density.

[0673] For example: Determine the density parameters of PTRS based on the transmission mode / technology type;

[0674] Different transmission modes / technology types can agree on different PTRS density parameters.

[0675] For example: Determine the density parameters of PTRS according to the DCI type;

[0676] Different DCIs correspond to different transmission modes / technology types, and different PTRS density parameters can be agreed upon respectively.

[0677] For example: Determine the density parameters of PTRS based on the PTRS power parameters;

[0678] The higher the power, the lower the PTRS density can be.

[0679] For example: Determine the density parameters of PTRS based on the mapping of code stream to layer;

[0680] The more layers mapped, the higher the PTRS density.

[0681] For example: Determine the density parameters of PTRS based on the multiple access method;

[0682] Different multiple access modes set different PTRS densities.

[0683] For example: Determine the density parameter of PTRS based on the value of OCC;

[0684] Different OCC lengths set different PTRS densities.

[0685] For example: Determine the PTRS density based on the maximum number of PTRS REs;

[0686] The maximum number of PTRS REs in the frequency domain and / or time domain is agreed upon, and the PTRS density is determined based on the agreement and the allocated time-frequency resources.

[0687] The density parameter includes time domain density and / or frequency domain density.

[0688] Sub-implementation method 3

[0689] When the parameter is the number of ports, the second node determines the number of ports of the phase noise pilot through an agreed implicit rule including one or more of:

[0690] For example: Determine the number of PTRS ports according to the density of PTRS.

[0691] The higher the density of PTRS, the smaller the number of ports.

[0692] For example: Determine the number of PTRS ports based on the modulation and coding method.

[0693] The higher the modulation level, the more ports there are.

[0694] For example: determining the number of PTRS ports based on allocated frequency domain resources and / or time domain resources;

[0695] The fewer the frequency domain resources and / or time domain resources are, the fewer the number of PTRS ports is.

[0696] For example: Determine the number of PTRS ports based on the operating frequency;

[0697] The higher the frequency, the more ports there are.

[0698] For example: Determine the number of PTRS ports based on the transmission mode / technology type;

[0699] Different transmission modes / technology types have different PTRS port number settings.

[0700] For example: Determine the number of PTRS ports based on the DCI type;

[0701] Different DCI types have different PTRS port number settings.

[0702] For example: Determine the number of PTRS ports based on the mapping of code streams to layers;

[0703] Different codeword stream to layer mapping methods have different PTRS port number settings.

[0704] For example: Determine the number of PTRS ports based on the multiple access method;

[0705] Different multiple access modes have different PTRS port number settings.

[0706] For example: Determine the number of PTRS ports based on the value of OCC;

[0707] Different OCC values ​​have different PTRS port number settings.

[0708] Sub-implementation method 4

[0709] When the parameter is a sequence parameter, the second node determines the sequence parameter of the phase noise pilot through an agreed implicit rule, including one or more of:

[0710] For example: determining the sequence parameters of PTRS according to the modulation and coding method;

[0711] Different modulation modes use different PTRS sequence parameters.

[0712] For example: determining the sequence parameters of the PTRS according to the allocated frequency domain resources and / or time domain resources;

[0713] Different frequency domain resources and / or time domain resources use different sequence parameters of the PTRS.

[0714] For example: determine the sequence parameters of PTRS according to the operating frequency;

[0715] The sequence parameters of PTRS used at different working frequencies are different.

[0716] For example: Determine the sequence parameters of PTRS based on the transmission mode / technology type;

[0717] Different transmission modes / technology types use different PTRS sequence parameters.

[0718] For example: determining the sequence parameters of PTRS according to the DCI type;

[0719] Different DCI types use different PTRS sequence parameters.

[0720] For example: determining the sequence parameters of PTRS according to the multiple access mode;

[0721] Different multiple access modes use different PTRS sequence parameters.

[0722] For example: determining a PTRS sequence parameter according to a reference signal sequence parameter associated with the PTRS;

[0723] PTRS can be associated with reference signals such as SRS, CSI-RS, and DMRS. The sequence of PTRS is related to the sequence parameters of the DMRS associated with it. Taking DMRS as an example, the sequence of PTRS can be determined by the scrambling code sequence of DMRS.

[0724] The sequence parameters mentioned above include at least one of the following: sequence initialization parameters; sequence type.

[0725] Sub-implementation method 5

[0726] When the parameter is a noise pilot pattern, the second node determines the phase noise pilot pattern through an agreed implicit rule including one or more of:

[0727] For example: determine the pilot pattern of PTRS according to the number of PTRS ports;

[0728] Different numbers of PTRS ports correspond to different PTRS pilot patterns.

[0729] For example, the PTRS pilot pattern is determined according to the DMRS port pattern associated with the PTRS.

[0730] The pattern configuration of the DMRS port will also be used to change the PTRS pilot pattern;

[0731] For example: determining the pilot pattern of PTRS according to the modulation and coding method;

[0732] The PTRS pilot patterns corresponding to different modulation and coding modes may be different; the modulation and coding mode will change the PTRS pilot pattern.

[0733] For example: the pilot pattern of the PTRS is determined according to the allocated frequency domain resources and / or time domain resources.

[0734] The PTRS pilot patterns corresponding to different frequency domain resources and / or time domain resources may be different;

[0735] For example: determine the pilot pattern of PTRS according to the working frequency.

[0736] The PTRS pilot patterns corresponding to different frequencies can be different;

[0737] For example: the pilot pattern of PTRS is determined according to the transmission mode / technology type.

[0738] The PTRS pilot patterns corresponding to different transmission modes / technology types may be different;

[0739] For example: determine the pilot pattern of PTRS according to the DCI type.

[0740] The PTRS pilot patterns corresponding to different DCI types may be different;

[0741] For example, the dense pilot pattern of the PTRS is determined according to the PTRS power parameter.

[0742] The PTRS pilot patterns corresponding to different PTRS powers may be different;

[0743] For example, the pilot pattern of PTRS is determined according to the mapping of code stream to layer.

[0744] The PTRS pilot patterns corresponding to different code stream to layer mapping methods may be different;

[0745] For example: the pilot pattern of PTRS is determined according to the multiple access method.

[0746] The PTRS pilot patterns corresponding to different multiple access modes may be different;

[0747] For example: the pilot pattern of PTRS is determined according to the value of OCC.

[0748] The PTRS pilot patterns corresponding to different OCC values ​​may be different;

[0749] For example, the PTRS pilot pattern is determined according to the maximum number of PTRS REs.

[0750] Example 4

[0751] A method for feedback of information of a phase noise pilot, wherein a third node sends control information to feedback received power or quality information of the phase noise pilot to a fourth node;

[0752] Here, preferably, the third node is a base station, and the fourth node is a terminal;

[0753] Or the third node is a base station, and the fourth node is also a base station;

[0754] Or the third node is a terminal, and the fourth node is also a terminal;

[0755] Alternatively, the third node is a terminal, and the fourth node is a base station;

[0756] The received power or quality information includes at least one of the following:

[0757] (1) Receive power or quality offset between PTRS ports;

[0758] (2) The received power or quality offset of the PTRS port relative to the DMRS port;

[0759] (3) The received power or quality offset of the PTRS port relative to the SRS port;

[0760] (4) The received power or quality bias of PTRS relative to data information;

[0761] (5) PTRS received power or quality bias relative to control information;

[0762] (6) Received power or quality bias of PTRS relative to CSI-RS;

[0763] (7) Received power or quality bias of PTRS relative to BRS;

[0764] Preferably, the received power or quality information of the phase noise pilot can be fed back via the control channel.

[0765] Figure 6 This is a composition diagram of a phase noise pilot configuration device according to an embodiment of the present invention, which is applied to a first node, and the device includes:

[0766] A configuration unit 61, configured to send control information to the second node, wherein the control information is used to indicate configuration parameters of the phase noise pilot to the second node;

[0767] The phase noise pilot is a phase noise pilot sent by the first node, or a phase noise pilot sent by the second node.

[0768] In the embodiment of the present invention, when the configuration parameter is a power configuration parameter, the configuration parameter includes at least one of the following:

[0769] Transmit power offset between PTRS ports;

[0770] The transmit power offset of PTRS relative to the DMRS port;

[0771] The transmit power offset of PTRS relative to the SRS port;

[0772] PTRS transmit power offset relative to data information;

[0773] PTRS transmit power offset relative to control information;

[0774] Transmit power offset of PTRS relative to CSI-RS;

[0775] The transmit power offset of PTRS relative to BRS.

[0776] In the embodiment of the present invention, when the configuration parameter is a power configuration parameter, the configuration unit 61 is specifically configured to indicate the configuration parameter by at least one of the following:

[0777] indicating the bias value through control information;

[0778] Indicating a biased reference object through control information;

[0779] Indicating a power offset value through precoding information;

[0780] Indicates the reference signal information associated with PTRS power.

[0781] The configuration unit 61 is specifically configured to indicate the configuration parameter by at least one of the following:

[0782] Indicates the selection information of the associated SRS port of the PTRS port power;

[0783] Indicating selection information of associated DMRS ports of PTRS port power;

[0784] Indicating the selection information of the associated CSI-RS port of the PTRS port power;

[0785] Indicates the selection information of the associated BRS port of the PTRS port power.

[0786] The configuration unit 61 is specifically used to: indicate the configuration parameter by: indicating the reference signal type associated with the PTRS port power, wherein the type includes at least one of the following: DMRS, SRS, CSI-RS, BRS.

[0787] The reference signal information indicating the PTRS power association includes: indicating that the PTRS power is the same as the power of the associated reference signal port; or indicating that the PTRS power is the sum of the powers of the associated reference signal ports.

[0788] In the embodiment of the present invention, when the configuration parameter is a precoding configuration parameter, the configuration unit 61 is specifically configured to: indicate the configuration parameter by: indicating an associated reference signal of PTRS port precoding.

[0789] The configuration unit 61 is specifically configured to indicate the configuration parameter by at least one of the following:

[0790] Indicates the selection information of the associated SRS port for PTRS port precoding;

[0791] Indicates the selection information of the associated DMRS port of the PTRS port precoding;

[0792] Indicates the selection information of the associated CSI-RS port for PTRS port precoding;

[0793] Indicates the selection information of the associated BRS port for PTRS port precoding.

[0794] The configuration unit 61 is specifically used to indicate the configuration parameters by: notifying the reference signal type associated with the PTRS port precoding, wherein the type includes at least one of the following: DMRS, SRS, CSI-RS, BRS.

[0795] The associated reference signal indicating the PTRS port precoding includes: indicating that the PTRS port precoding is the same as the associated reference signal port precoding; or indicating that the PTRS port precoding is a weighted combination of the associated reference signal ports.

[0796] In the embodiment of the present invention, when the configuration parameter is a density configuration parameter, the configuration unit 61 is specifically configured to indicate the configuration parameter by at least one of the following:

[0797] An associated reference signal indicating the PTRS port density;

[0798] Indicates the PTRS port density relative to the associated reference signal multiple.

[0799] The PTRS port density is the same as the density of the associated reference signal ports; or the PTRS port density is an integer multiple of the density of the associated reference signal ports.

[0800] In the embodiment of the present invention, when the configuration parameter is a sequence configuration parameter, the configuration unit 61 is specifically configured to: indicate the configuration parameter by: indicating an associated reference signal of a PTRS port sequence.

[0801] The associated reference signal indicating the PTRS port sequence includes: a sequence parameter indicating that the PTRS sequence is the same as a sequence parameter of the associated reference signal port, wherein the sequence parameter includes at least one of the following: a sequence type, an initialization parameter of a sequence.

[0802] In the embodiment of the present invention, when the configuration parameter is a quasi-co-location parameter, the configuration unit 61 is specifically configured to indicate the configuration parameter by at least one of the following:

[0803] Indicating selection information of SRS ports quasi-co-located with PTRS ports;

[0804] Indicating selection information of DMRS ports quasi-co-located with PTRS ports;

[0805] Indicating selection information of associated CSI-RS ports of quasi-co-location of PTRS ports;

[0806] Indicates the selection information of the BRS port where the PTRS port is quasi-co-located.

[0807] In the embodiment of the present invention, when the configuration parameter is a resource configuration parameter, the configuration unit 61 is specifically used to: indicate the configuration parameter by: indicating the maximum number of subcarriers or the maximum number of REs of the PTRS port in the frequency domain.

[0808] In an embodiment of the present invention, when the configuration parameter is a parameter indicating the association relationship between a DMRS port and a PTRS port, the first node indicates PTRS grouping information associated with the DMRS port through signaling, and / or the first node indicates DMRS port grouping information associated with the PTRS port through signaling.

[0809] Figure 7 This is a composition diagram of a phase noise pilot determination device according to an embodiment of the present invention, which is applied to a second node, and the device includes:

[0810] A determining unit 71, configured to determine a configuration parameter of a phase noise pilot through control information sent by the first node and / or through an agreed implicit rule;

[0811] The phase noise pilot is a phase noise pilot sent by the first node, or a phase noise pilot sent by the second node.

[0812] In the embodiment of the present invention, when the configuration parameter is a DMRS port and PTRS port association relationship indication parameter, the second node determines the DMRS port and PTRS port association relationship by an agreed implicit rule, specifically including at least one of the following:

[0813] Determine the grouping method of PTRS according to the number of PTRS ports;

[0814] Determine the grouping method of PTRS according to the PTRS density parameter;

[0815] Determine the grouping method of PTRS according to the modulation and coding method;

[0816] Determine a PTRS grouping method according to the allocated frequency domain resources and / or time domain resources;

[0817] Determine the PTRS grouping method based on the operating frequency;

[0818] Determine the grouping method of PTRS according to the transmission mode / technology type;

[0819] Determine the PTRS grouping method based on the DCI type;

[0820] Determine the PTRS grouping method based on the PTRS power parameters;

[0821] Determine the PTRS grouping method based on the mapping of code streams to layers;

[0822] Determine the grouping method of PTRS according to the multiple access method;

[0823] Determine the PTRS grouping method based on the OCC value;

[0824] The PTRS density is determined based on the maximum number of PTRS REs.

[0825] In the embodiment of the present invention, when the configuration parameter is a precoding indication parameter, the second node determines the PTRS precoding by an agreed implicit rule, specifically including:

[0826] A codeword is selected from a precoding set for PTRS precoding according to an agreed time domain and / or time domain resource position.

[0827] In an embodiment of the present invention, when the configuration parameter is a PTRS transmission status indication parameter, the second node determines the PTRS transmission status according to the PTRS transmission status configuration signaling and MCS method sent by the first node, and the transmission status includes at least one of the following: no transmission, zero power transmission, and non-zero power transmission.

[0828] In the embodiment of the present invention, when the configuration parameter is a power configuration parameter, the configuration parameter includes at least one of the following:

[0829] Transmit power offset between PTRS ports;

[0830] The transmit power offset of PTRS relative to the DMRS port;

[0831] The transmit power offset of PTRS relative to the SRS port;

[0832] PTRS transmit power offset relative to data information;

[0833] PTRS transmit power offset relative to control information;

[0834] Transmit power offset of PTRS relative to CSI-RS;

[0835] The transmit power offset of PTRS relative to BRS.

[0836] In the embodiment of the present invention, when the configuration parameter is a power configuration parameter, the determination unit 71 determines at least one of the following information through control information sent by the first node: a power offset value, a reference object for the offset, and a precoding weight.

[0837] In the embodiment of the present invention, when the configuration parameter is a power configuration parameter, the determining unit 71 determines at least one of the following information through the control information sent by the first node:

[0838] Selection information of the associated SRS port of the PTRS port power;

[0839] Selection information of DMRS ports associated with PTRS port power;

[0840] Selection information of CSI-RS ports associated with PTRS port power;

[0841] The selection information of the associated BRS port of the PTRS port power.

[0842] In the embodiment of the present invention, when the configuration parameter is a power parameter, the determining unit 71 determines the power parameter of the phase noise pilot by using an agreed implicit rule, specifically including at least one of the following:

[0843] Determine the power parameters of PTRS according to the number of PTRS ports;

[0844] Determine a PTRS power parameter based on the number of DMRS ports associated with the PTRS;

[0845] Determine a PTRS power parameter according to the power of the DMRS associated with the PTRS;

[0846] Determine the power parameters of PTRS according to the modulation and coding method;

[0847] Determine a power parameter of the PTRS according to the allocated frequency domain resources and / or time domain resources;

[0848] Determine the power parameters of PTRS according to the operating frequency;

[0849] Determine the power parameters of PTRS based on the transmission mode / technology type;

[0850] Determine the power parameters of PTRS according to the DCI type;

[0851] Determine the power parameters of PTRS according to the PTRS time / frequency density;

[0852] Determine the power parameters of PTRS based on the mapping of code streams to layers;

[0853] Determine the power parameters of PTRS according to the multiple access mode;

[0854] Determine the power parameters of PTRS according to the value of OCC;

[0855] Determine the power parameter of PTRS according to the sequence of PTRS;

[0856] Determine the power parameters of PTRS based on the quasi-co-location relationship between PTRS and other reference signals;

[0857] The power parameter includes a power absolute value or a power offset value.

[0858] In the embodiment of the present invention, when the configuration parameter is a density parameter, the determination unit 71 determines the density of the phase noise pilot by using an agreed implicit rule, specifically including at least one of the following:

[0859] Determine the density parameter of PTRS according to the number of PTRS ports;

[0860] Determine a PTRS density parameter based on the number of DMRS ports associated with the PTRS;

[0861] Determine a PTRS density parameter according to the density of the DMRS associated with the PTRS;

[0862] Determine the density parameters of PTRS according to the modulation and coding method;

[0863] Determine a density parameter of the PTRS according to the allocated frequency domain resources and / or time domain resources;

[0864] Determine the density parameters of PTRS according to the operating frequency;

[0865] Determine the density parameters of PTRS based on the transmission mode / technology type;

[0866] Determine the density parameters of PTRS according to the DCI type;

[0867] Determine the density parameter of PTRS according to the PTRS power parameter;

[0868] Determine the density parameters of PTRS based on the mapping of code streams to layers;

[0869] Determine the density parameters of PTRS according to the multiple access method;

[0870] Determine the density parameter of PTRS according to the value of OCC;

[0871] The PTRS density is determined based on the maximum number of PTRS REs;

[0872] Determining PTRS density based on a quasi-co-location relationship between PTRS and other reference signals with respect to frequency offset or Doppler shift;

[0873] The density parameter includes time domain density and / or frequency domain density.

[0874] In the embodiment of the present invention, when the configuration parameter is the number of ports, the determining unit 71 determines the number of ports of the phase noise pilot by using an agreed implicit rule, specifically including at least one of the following:

[0875] Determine the number of PTRS ports based on the density of PTRS;

[0876] Determine the number of PTRS ports based on the modulation and coding method;

[0877] Determine the number of PTRS ports according to the allocated frequency domain resources and / or time domain resources;

[0878] Determine the number of PTRS ports based on the operating frequency;

[0879] Determine the number of PTRS ports based on the transmission mode / technology type;

[0880] Determine the number of PTRS ports based on the DCI type;

[0881] Determine the number of PTRS ports based on PTRS time / frequency density;

[0882] Determine the number of PTRS ports based on the mapping of code streams to layers;

[0883] Determine the number of PTRS ports based on the multiple access method;

[0884] Determine the number of PTRS ports based on the value of OCC;

[0885] The number of ports of PTRS is determined according to the quasi-co-location relationship between PTRS and other reference signals.

[0886] In the embodiment of the present invention, when the configuration parameter is a sequence parameter, the determining unit 71 determines the sequence parameter of the phase noise pilot by using an agreed implicit rule, specifically including at least one of the following:

[0887] Determine the sequence parameters of PTRS according to the modulation and coding mode;

[0888] Determine a sequence parameter of the PTRS according to the allocated frequency domain resources and / or time domain resources;

[0889] Determine the sequence parameters of PTRS according to the operating frequency;

[0890] Determine the sequence parameters of PTRS according to the transmission mode / technology type;

[0891] Determine the sequence parameters of PTRS according to the DCI type;

[0892] Determine the sequence parameters of PTRS according to the multiple access mode;

[0893] Determining a PTRS sequence parameter according to a reference signal sequence parameter associated with the PTRS;

[0894] The sequence parameters include at least one of the following: sequence initialization parameters and sequence type.

[0895] In the embodiment of the present invention, when the configuration parameter is a noise pilot pattern, the determining unit 71 determines the phase noise pilot pattern by using an agreed implicit rule, specifically including at least one of the following:

[0896] Determine the pilot pattern of PTRS according to the number of PTRS ports;

[0897] Determine a PTRS pilot pattern according to a DMRS port pattern associated with the PTRS;

[0898] Determine the pilot pattern of PTRS according to the modulation and coding mode;

[0899] Determine a pilot pattern of the PTRS according to the allocated frequency domain resources and / or time domain resources;

[0900] Determine the pilot pattern of PTRS according to the working frequency;

[0901] Determine the pilot pattern of PTRS according to the transmission mode / technology type;

[0902] Determine the pilot pattern of PTRS according to the DCI type;

[0903] Determine a dense pilot pattern of PTRS according to a PTRS power parameter;

[0904] Determine the pilot pattern of PTRS according to the mapping of code stream to layer;

[0905] Determine a pilot pattern of PTRS according to a multiple access method;

[0906] Determine the pilot pattern of PTRS according to the value of OCC;

[0907] The pilot pattern of the PTRS is determined according to the maximum number of PTRS REs.

[0908] In the embodiment of the present invention, when the configuration parameter is a resource configuration parameter, the determining unit 71 determines the maximum number of subcarriers or the maximum number of REs of the PTRS port in the frequency domain through the control information sent by the first node.

[0909] Figure 8 This is a composition diagram of a phase noise pilot information feedback device according to an embodiment of the present invention, which is applied to a third node. The device includes:

[0910] The feedback unit 81 is used to send control information to the fourth node, where the control information is used to feed back received power or quality information of the phase noise pilot to the fourth node.

[0911] In an embodiment of the present invention, the received power or quality information includes at least one of the following:

[0912] Receive power or quality offset between PTRS ports;

[0913] The receive power or quality offset of PTRS relative to DMRS port;

[0914] The receive power or quality offset of the PTRS port relative to the SRS port;

[0915] The received power or quality bias of PTRS relative to data information;

[0916] PTRS received power or quality offset relative to control information;

[0917] The received power or quality offset of PTRS relative to CSI-RS;

[0918] The received power or quality offset of PTRS relative to BRS.

[0919] Those skilled in the art should understand that the description of each device in the embodiments of the present invention can be understood by referring to the description of the corresponding method.

[0920] Those skilled in the art will appreciate that embodiments of the present invention may be provided as methods, systems, or computer program products. Therefore, the present invention may take the form of hardware embodiments, software embodiments, or embodiments combining software and hardware. Furthermore, the present invention may take the form of a computer program product implemented on one or more computer-usable storage media (including but not limited to disk storage and optical storage, etc.) containing computer-usable program code.

[0921] The present invention is described with reference to flowcharts and / or block diagrams of methods, devices (systems), and computer program products according to embodiments of the present invention. It should be understood that each process and / or block in the flowchart and / or block diagram, as well as the combination of processes and / or blocks in the flowchart and / or block diagram, can be implemented by computer program instructions. These computer program instructions can be provided to a processor of a general-purpose computer, a special-purpose computer, an embedded processor, or other programmable data processing device to produce a machine, so that the instructions executed by the processor of the computer or other programmable data processing device generate instructions for implementing the processes in the flowchart and / or block diagram. Figure 1 A process or multiple processes and / or boxes Figure 1 A device that provides the functions specified in a block or multiple blocks.

[0922] These computer program instructions may also be stored in a computer-readable memory capable of directing a computer or other programmable data processing device to operate in a specific manner, so that the instructions stored in the computer-readable memory produce an article of manufacture comprising an instruction device, which implements the process Figure 1 A process or multiple processes and / or boxes Figure 1 A function specified in one or more boxes.

[0923] These computer program instructions can also be loaded onto a computer or other programmable data processing device so that a series of operating steps are executed on the computer or other programmable device to produce a computer-implemented process, thereby providing instructions for implementing the process. Figure 1 A process or multiple processes and / or boxes Figure 1 The steps for the functions specified in one or more boxes.

[0924] Accordingly, an embodiment of the present invention further provides a computer storage medium, in which a computer program is stored, and the computer program is configured to execute the configuration, determination, and information feedback method of the phase noise pilot of the embodiment of the present invention.

[0925] The above description is only a preferred embodiment of the present invention and is not intended to limit the protection scope of the present invention.

Claims

1. A method for configuring a phase noise pilot, characterized in that: The method comprises: The first node sends control information to the second node, where the control information is used to indicate configuration parameters of a phase noise pilot to the second node; The phase noise pilot is a phase noise pilot sent by the first node, or a phase noise pilot sent by the second node; The configuration parameters include: precoding configuration parameters, density configuration parameters, sequence configuration parameters, quasi-colocation parameters, resource configuration parameters, DMRS port and PTRS port association relationship indication parameters, and power configuration parameters.

2. The method according to claim 1, characterized in that When the configuration parameter is a precoding configuration parameter, the method for indicating the configuration parameter includes: indicating an associated reference signal of PTRS port precoding.

3. The method according to claim 2, characterized in that The method for indicating the configuration parameter further includes at least one of the following: Indicates the selection information of the associated SRS port for PTRS port precoding; Indicates the selection information of the associated DMRS port of the PTRS port precoding; Indicates the selection information of the associated CSI-RS port for PTRS port precoding; Indicates the selection information of the associated BRS port for PTRS port precoding.

4. The method according to claim 2, characterized in that: The method for indicating the configuration parameters further includes: notifying a reference signal type associated with the PTRS port precoding, wherein the type includes at least one of the following: DMRS, SRS, CSI-RS, BRS.

5. The method according to claim 2, characterized in that: The associated reference signal indicating the PTRS port precoding includes: indicating that the PTRS port precoding is the same as the associated reference signal port precoding; or indicating that the PTRS port precoding is a weighted combination of the associated reference signal ports.

6. The method according to claim 1, characterized in that When the configuration parameter is a density configuration parameter, the method for indicating the configuration parameter includes at least one of the following: An associated reference signal indicating the PTRS port density; Indicates the PTRS port density relative to the associated reference signal multiple.

7. The method according to claim 6, characterized in that The PTRS port density is the same as the density of the associated reference signal ports; or the PTRS port density is an integer multiple of the density of the associated reference signal ports.

8. The method according to claim 1, characterized in that When the configuration parameter is a sequence configuration parameter, the method for indicating the configuration parameter includes: indicating an associated reference signal of a PTRS port sequence.

9. The method according to claim 8, characterized in that The associated reference signal indicating the PTRS port sequence includes: a sequence parameter indicating that the PTRS sequence is the same as a sequence parameter of the associated reference signal port, wherein the sequence parameter includes at least one of the following: a sequence type, and an initialization parameter of a sequence.

10. The method according to claim 1, characterized in that When the configuration parameter is a quasi-co-location parameter, the method for indicating the configuration parameter includes at least one of the following: Indicating selection information of SRS ports quasi-co-located with PTRS ports; Indicating selection information of DMRS ports quasi-co-located with PTRS ports; Indicating selection information of associated CSI-RS ports of quasi-co-location of PTRS ports; Indicates the selection information of the BRS port where the PTRS port is quasi-co-located.

11. The method according to claim 1, characterized in that: When the configuration parameter is a resource configuration parameter, the method for indicating the configuration parameter includes: indicating a maximum number of subcarriers or a maximum number of REs of a PTRS port in the frequency domain.

12. The method according to claim 1, characterized in that When the configuration parameter is a DMRS port and PTRS port association relationship indication parameter, the first node indicates PTRS grouping information associated with the DMRS port through signaling, and / or the first node indicates DMRS port grouping information associated with the PTRS port through signaling.

13. A method for determining a phase noise pilot, characterized in that: The method comprises: The second node determines the configuration parameters of the phase noise pilot through the control information sent by the first node and / or through an agreed implicit rule; The phase noise pilot is a phase noise pilot sent by the first node, or a phase noise pilot sent by the second node; The configuration parameters include: precoding indication parameter, density configuration parameter, sequence configuration parameter, PTRS transmission status indication parameter, number of ports, noise pilot pattern, resource configuration parameter, DMRS port and PTRS port association relationship indication parameter, and power configuration parameter.

14. The method according to claim 13, characterized in that When the configuration parameter is a DMRS port and PTRS port association relationship indication parameter, the second node determines the DMRS port and PTRS port association relationship through an agreed implicit rule, specifically including at least one of the following: Determine the grouping method of PTRS according to the number of PTRS ports; Determine the grouping method of PTRS according to the PTRS density parameter; Determine the grouping method of PTRS according to the modulation and coding method; Determine a PTRS grouping method according to the allocated frequency domain resources and / or time domain resources; Determine the PTRS grouping method based on the operating frequency; Determine the grouping method of PTRS according to the transmission mode / technology type; Determine the PTRS grouping method based on the DCI type; Determine the PTRS grouping method based on the PTRS power parameters; Determine the PTRS grouping method based on the mapping of code streams to layers; Determine the grouping method of PTRS according to the multiple access method; Determine the grouping method of PTRS according to the value of OCC; The PTRS density is determined based on the maximum number of PTRS REs.

15. The method according to claim 13, characterized in that When the configuration parameter is a precoding indication parameter, the second node determines the PTRS precoding by an agreed implicit rule, specifically including: A codeword is selected from a precoding set for PTRS precoding according to an agreed time domain and / or time domain resource position.

16. The method according to claim 13, characterized in that When the configuration parameter is a PTRS transmission status indication parameter, the second node determines the PTRS transmission status according to the PTRS transmission status configuration signaling and the MCS mode sent by the first node, and the transmission status includes at least one of the following: no transmission, zero power transmission, and non-zero power transmission.

17. The method according to claim 13, characterized in that When the configuration parameter is a density parameter, the second node determines the density of the phase noise pilot by an agreed implicit rule, specifically including at least one of the following: Determine the density parameter of PTRS according to the number of PTRS ports; Determine a PTRS density parameter based on the number of DMRS ports associated with the PTRS; Determine a PTRS density parameter according to the density of the DMRS associated with the PTRS; Determine the density parameters of PTRS according to the modulation and coding method; Determine a density parameter of the PTRS according to the allocated frequency domain resources and / or time domain resources; Determine the density parameters of PTRS according to the operating frequency; Determine the density parameters of PTRS based on the transmission mode / technology type; Determine the density parameters of PTRS according to the DCI type; Determine the density parameter of PTRS according to the PTRS power parameter; Determine the density parameters of PTRS based on the mapping of code streams to layers; Determine the density parameters of PTRS according to the multiple access method; Determine the density parameter of PTRS according to the value of OCC; The PTRS density is determined based on the maximum number of PTRS REs; Determining PTRS density based on a quasi-co-location relationship between PTRS and other reference signals with respect to frequency offset or Doppler shift; The density parameter includes time domain density and / or frequency domain density.

18. The method according to claim 13, characterized in that When the configuration parameter is the number of ports, the second node determines the number of ports of the phase noise pilot by using an agreed implicit rule, specifically including at least one of the following: Determine the number of PTRS ports based on the density of PTRS; Determine the number of PTRS ports based on the modulation and coding method; Determine the number of PTRS ports according to the allocated frequency domain resources and / or time domain resources; Determine the number of PTRS ports based on the operating frequency; Determine the number of PTRS ports based on the transmission mode / technology type; Determine the number of PTRS ports based on the DCI type; Determine the number of PTRS ports based on PTRS time / frequency density; Determine the number of PTRS ports based on the mapping of code streams to layers; Determine the number of PTRS ports based on the multiple access method; Determine the number of PTRS ports based on the value of OCC; The number of ports of PTRS is determined according to the quasi-co-location relationship between PTRS and other reference signals.

19. The method according to claim 13, characterized in that When the configuration parameter is a sequence parameter, the second node determines the sequence parameter of the phase noise pilot by using an agreed implicit rule, specifically including at least one of the following: Determine the sequence parameters of PTRS according to the modulation and coding mode; Determine a sequence parameter of the PTRS according to the allocated frequency domain resources and / or time domain resources; Determine the sequence parameters of PTRS according to the operating frequency; Determine the sequence parameters of PTRS according to the transmission mode / technology type; Determine the sequence parameters of PTRS according to the DCI type; Determine the sequence parameters of PTRS according to the multiple access mode; Determining a PTRS sequence parameter according to a reference signal sequence parameter associated with the PTRS; The sequence parameters include at least one of the following: sequence initialization parameters and sequence type.

20. The method according to claim 13, characterized in that When the configuration parameter is a noise pilot pattern, the second node determines the phase noise pilot pattern by using an agreed implicit rule, specifically including at least one of the following: Determine the pilot pattern of PTRS according to the number of PTRS ports; Determine a PTRS pilot pattern according to a DMRS port pattern associated with the PTRS; Determine the pilot pattern of PTRS according to the modulation and coding mode; Determine a pilot pattern of the PTRS according to the allocated frequency domain resources and / or time domain resources; Determine the pilot pattern of PTRS according to the working frequency; Determine the pilot pattern of PTRS according to the transmission mode / technology type; Determine the pilot pattern of PTRS according to the DCI type; Determine a dense pilot pattern of PTRS according to a PTRS power parameter; Determine the pilot pattern of PTRS according to the mapping of code stream to layer; Determine a pilot pattern of PTRS according to a multiple access method; Determine the pilot pattern of PTRS according to the value of OCC; The pilot pattern of the PTRS is determined according to the maximum number of PTRS REs.

21. The method according to claim 13, characterized in that When the configuration parameter is a resource configuration parameter, the second node determines the maximum number of subcarriers or the maximum number of REs of the PTRS port in the frequency domain through the control information sent by the first node.

22. A phase noise pilot configuration device, characterized in that: include: memory, and one or more processors; The memory is configured to store one or more programs; When the one or more programs are executed by the one or more processors, the one or more processors implement the method as described in any one of claims 1 to 12.

23. A device for determining a phase noise pilot, characterized in that: include: memory, and one or more processors; The memory is configured to store one or more programs; When the one or more programs are executed by the one or more processors, the one or more processors implement the method as described in any one of claims 13 to 21.

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