CN108111271B

CN108111271B - Signaling indication of reference signal, and method and device for sending reference signal

Info

Publication number: CN108111271B
Application number: CN201710459097.6A
Authority: CN
Inventors: 王瑜新; 鲁照华; 李儒岳; 陈艺戬; 蒋创新
Original assignee: ZTE Corp
Current assignee: ZTE Corp
Priority date: 2017-06-16
Filing date: 2017-06-16
Publication date: 2023-09-19
Anticipated expiration: 2037-06-16
Also published as: CN108111271A; WO2018228339A1

Abstract

The invention provides a signaling indication method of a reference signal, a signaling indication device of the reference signal and a signaling indication device of the reference signal, wherein the signaling indication method of the reference signal comprises the following steps: the first communication node indicates a generation method or a sending method of an uplink reference signal of the second communication node through signaling; or, a generation method or a transmission method of an uplink reference signal of the second communication node is predefined between the first communication node and the second communication node. Therefore, the problem of how to generate and transmit the measurement reference signal in the new system in the related art can be solved, and the effect of generating and mode strategy reference signal in the new system can be achieved.

Description

Signaling indication of reference signal, and method and device for sending reference signal

Technical Field

The present invention relates to the field of communications, and in particular, to a method and apparatus for signaling indication of a reference signal and transmitting the reference signal.

Background

In the related art, in long term evolution (Long Term Evolution, abbreviated LTE), a physical downlink control channel (Physical Downlink Control Channel, abbreviated PDCCH) is used to carry uplink and downlink scheduling information, and uplink power control information. The downlink control information (Downlink Control Information, abbreviated as DCI) format (format) is divided into DCI formats 0, 1A, 1B, 1C, 1D, 2A, 3a, etc., and later evolved into LTE-a Release12 (LTE-a Release 12) to further add DCI formats 2B, 2C, 2D to support multiple different applications and transmission modes. The first communication Node (e-Node-B, abbreviated eNB) may configure a second communication Node device (UE) through downlink control information, or the second communication Node device accepts configuration of a higher layer (higher layers), which is also referred to as configuring the UE through higher layer signaling.

The measurement reference signal (Sounding Reference Signal, abbreviated SRS) is a signal used between the second communication node device and the first communication node to measure radio channel information (Channel State Information, abbreviated CSI). In a long term evolution system, a UE periodically transmits an uplink SRS on a last data symbol of a transmission subframe according to parameters such as a frequency band, a frequency domain position, a sequence cyclic shift, a period, a subframe offset, and the like indicated by an eNB. And the eNB judges the CSI of the UE uplink according to the received SRS, and performs operations such as frequency domain selection scheduling, closed loop power control and the like according to the obtained CSI.

In the study of LTE-A Release 10 (LTE-A Release 10) it was proposed: in uplink communication, non-precoded SRS should be used, namely: antenna-specific SRS, and a reference signal (De Modulation Reference Signal, abbreviated DMRS) for demodulation of a physical uplink shared channel (Physical Uplink Shared Channel, abbreviated PUSCH) is precoded. The first communication node can estimate the original uplink CSI by receiving the non-precoded SRS, and the precoded DMRS cannot enable the first communication node to estimate the original uplink CSI. At this time, when UEs transmit non-precoded SRS using multiple antennas, SRS resources required for each UE increase, which results in a decrease in the number of UEs that can be multiplexed simultaneously in the system. The UE may send SRS through two trigger modes of higher layer signaling (also referred to as triggering by trigger type 0) or downlink control information (also referred to as triggering by trigger type 1), where the trigger is periodic SRS based on the higher layer signaling, and the trigger is aperiodic SRS based on the downlink control information. The method for aperiodically transmitting the SRS is added in the LTE-A Release 10, so that the utilization rate of SRS resources is improved to a certain extent, and the flexibility of resource scheduling is improved.

With the development of communication technology, the demand of data service is increasing, and available low-frequency carriers are also very scarce, so that communication based on high-frequency (30-300 GHz) carriers which are not fully utilized is one of important communication means for solving the problem of future high-speed data communication. The available bandwidth for high frequency carrier communication is large to provide efficient high speed data communication. However, a great technical challenge faced by high frequency carrier communication is: the fading of the high frequency signal in space is very large compared with the low frequency signal, and although the problem of fading loss in space occurs in communication of the high frequency signal outdoors, more antennas can be generally used due to the reduction of the wavelength, so that communication can be performed based on beams to compensate for the fading loss in space.

However, as the number of antennas increases, the digital beamforming also causes problems of increased cost and power consumption due to the need to have one radio frequency link per antenna. Thus, the research in the related art has a comparative trend toward hybrid beamforming, i.e., a radio frequency beam and a digital beam together form a final beam.

In the research of a new radio access technology (New Radio Access Technology), in addition to the first communication node configuring a large number of antennas to form downlink transmission beams to compensate for spatial fading of high-frequency communication, the second communication node configuring a large number of antennas to form uplink transmission beams, and at this time, SRS is transmitted in the form of beams. In future SRS research, in order to improve the flexibility of SRS resource scheduling, enhance the orthogonality of SRS between users, and also give consideration to the peak-to-average power ratio (PAPR) of SRS transmission sequences, how to generate SRS sequences is a problem to be solved.

There is no effective solution to the problem of how to generate and transmit measurement reference signals in a new system in the related art.

Disclosure of Invention

The embodiment of the invention provides a signaling indication of a reference signal, a method and a device for sending the reference signal, which at least solve the problem of how to generate and send a measurement reference signal in a new system in the related technology.

According to an embodiment of the present invention, there is provided a signaling indication method of a reference signal, including:

the method comprises the steps that a first communication node indicates a generation method or a sending method of an uplink reference signal of a second communication node to the second communication node through signaling; or alternatively, the process may be performed,

a generation method or a transmission method of an uplink reference signal of the second communication node is predefined between the first communication node and the second communication node, wherein the generation method is used for the second communication node to generate the uplink reference signal, and the transmission method is used for the second communication node to transmit the uplink reference signal.

Preferably, the method for generating the uplink reference signal includes at least one of the following:

a measurement reference signal sequence is generated based on the measurement bandwidth, based on the measured bandwidth location or the measured physical resource block location.

Preferably, the signaling includes at least one of:

signaling for indicating the generation mode of the measurement reference signal sequence;

signaling for indicating uplink transmission waveforms;

signaling for indicating modulation coding mode index of uplink data;

signaling for indicating modulation mode of uplink data;

signaling for indicating uplink system bandwidth, measurement reference signal allocation bandwidth or measurement reference signal scheduling bandwidth;

signaling for configuring a set of time slots, a set of subframes, or a long and short time slot.

Preferably, the method for generating the uplink reference signal, which indicates the second communication node to the second communication node through signaling, includes:

when the transmission waveform indicated by the signaling for indicating the uplink transmission waveform is orthogonal frequency division multiplexing of discrete Fourier transform spread spectrum, the first communication node indicates the generation method of the uplink reference signal of the second communication node to the second communication node through the signaling, and the generation method is to generate a measurement reference signal sequence based on measurement bandwidth;

when the transmission waveform indicated by the signaling for indicating the uplink transmission waveform is cyclic prefix orthogonal frequency division multiplexing, the first communication node indicates the generation method of the uplink reference signal of the second communication node to the second communication node through the signaling, and a measurement reference signal sequence is generated based on the measured bandwidth position or the measured physical resource block position.

when the modulation mode of the uplink data indicated by the signaling for indicating the modulation mode of the uplink data is 16 quadrature amplitude modulation QAM or 64QAM or 256QAM or a modulation mode greater than 256QAM, or when the modulation coding mode index of the uplink data indicated by the signaling for indicating the modulation coding mode index of the uplink data is greater than or equal to C, the first communication node indicates to the second communication node through signaling that the generation method of the uplink reference signal of the second communication node is to generate a measurement reference signal sequence based on the measured bandwidth position or the measured physical resource block position, otherwise, the generation method of the uplink reference signal of the second communication node is to generate a measurement reference signal sequence based on the measurement bandwidth, wherein C is a positive integer greater than or equal to 2.

and when the bandwidth indicated by the signaling for indicating the uplink system bandwidth, the measurement reference signal allocation bandwidth or the measurement reference signal scheduling bandwidth is greater than or equal to D RBs, generating a measurement reference signal sequence by the generation method of the uplink reference signal of the second communication node based on the measured bandwidth position or the measured physical resource block position, otherwise generating a measurement reference signal sequence by the generation method of the uplink reference signal of the second communication node based on the measurement bandwidth, wherein D is a positive integer greater than or equal to 2.

Preferably, the method for generating the uplink reference signal, which indicates the second communication node to the second communication node through signaling, includes at least one of the following steps:

the first communication node configures a time slot set 1 and a time slot set 2 to the second communication node through signaling, the second communication node generates a measurement reference signal sequence based on a measured bandwidth position or a measured physical resource block position in the time slot set 1, and generates a measurement reference signal sequence based on a measured bandwidth in the time slot set 2; or, the second communication node generates a measurement reference signal sequence based on the measured bandwidth position or the measured physical resource block position in the time slot set 2, and generates a measurement reference signal sequence based on the measured bandwidth in the time slot set 1;

the first communication node configures a subframe set 1 and a subframe set 2 to the second communication node through signaling, the second communication node generates a measurement reference signal sequence based on a measured bandwidth position or a measured physical resource block position in the subframe set 1, and generates a measurement reference signal sequence based on a measured bandwidth in the subframe set 2; or, the second communication node generates a measurement reference signal sequence based on the measured bandwidth position or the measured physical resource block position in the subframe set 2, and generates a measurement reference signal sequence based on the measured bandwidth in the subframe set 1;

The first communication node configures a long time slot and a short time slot to the second communication node through signaling, the second communication node generates a measurement reference signal sequence based on a measured bandwidth position or a measured physical resource block position in the long time slot, and generates a measurement reference signal sequence based on a measured bandwidth in the short time slot; or the second communication node generates a measurement reference signal sequence based on the measured bandwidth position or the measured physical resource block position in the short time slot, and generates a measurement reference signal sequence based on the measured bandwidth in the long time slot.

Preferably, the signaling includes at least one of: radio resource control, RRC, signaling, medium access control, MAC CE, signaling, physical downlink control signaling.

Preferably, the method for generating the uplink reference signal of the second communication node predefined between the first communication node and the second communication node includes at least one of the following:

when the transmission waveform of the uplink reference signal sent by the second communication node is orthogonal frequency division multiplexing of discrete Fourier transform spread spectrum, the generation method of the uplink reference signal of the predefined second communication node between the first communication node and the second communication node is to generate a measurement reference signal sequence based on measurement bandwidth;

When the transmission waveform of the uplink reference signal sent by the second communication node is cyclic prefix orthogonal frequency division multiplexing, the generation method of the uplink reference signal of the second communication node is predefined between the first communication node and the second communication node, and a measurement reference signal sequence is generated based on the measured bandwidth position or the measured physical resource block position.

when the channel quality indicator CQI fed back by the second communication node to the first communication node is smaller than or equal to a preset first threshold value, the generation method of the predefined uplink reference signal of the second communication node between the first communication node and the second communication node is to generate a measurement reference signal sequence based on a measurement bandwidth;

when the channel quality indicator CQI fed back by the second communication node to the first communication node is greater than a preset first threshold value, the generation method of the predefined uplink reference signal of the second communication node between the first communication node and the second communication node is to generate a measurement reference signal sequence based on a measured bandwidth position or a measured physical resource block position;

Wherein the first threshold is an integer between 1 and 15.

Preferably, the method for generating the uplink reference signal of the second communication node predefined between the first communication node and the second communication node includes:

when the modulation mode of the uplink data is 16 quadrature amplitude modulation QAM or 64QAM or 256QAM or greater than 256QAM, or when the modulation coding mode index of the uplink data indicated by the signaling of the modulation coding mode index of the uplink data is greater than or equal to E, the method for generating the uplink reference signal of the second communication node is predefined between the first communication node and the second communication node to generate a measurement reference signal sequence based on the measured bandwidth position or the measured physical resource block position, otherwise, the method for generating the uplink reference signal of the second communication node is predefined to generate a measurement reference signal sequence based on the measurement bandwidth, wherein E is a positive integer greater than or equal to 2.

when the uplink system bandwidth, the measurement reference signal allocation bandwidth or the measurement reference signal scheduling bandwidth is greater than or equal to F RBs, the generation method of the uplink reference signal of the second communication node is predefined between the first communication node and the second communication node to generate a measurement reference signal sequence based on the measured bandwidth position or the measured physical resource block position, otherwise, the generation method of the uplink reference signal of the second communication node is predefined to generate a measurement reference signal sequence based on the measurement bandwidth, wherein F is a positive integer greater than or equal to 2;

The first communication node and the second communication node predefine that the second communication node generates a measurement reference signal sequence based on a measured bandwidth position or a measured physical resource block position in a time slot set 1 and generates a measurement reference signal sequence based on a measured bandwidth in a time slot set 2; or, predefining that the second communication node generates a measurement reference signal sequence based on the measured bandwidth position or the measured physical resource block position in the time slot set 2, predefining that the second communication node generates a measurement reference signal sequence based on the measured bandwidth in the time slot set 1;

the first communication node and the second communication node predefine that the second communication node generates a measurement reference signal sequence based on a measured bandwidth position or a measured physical resource block position in a subframe set 1, and generates a measurement reference signal sequence based on a measurement bandwidth in a subframe set 2; or, predefining that the second communication node generates a measurement reference signal sequence based on the measured bandwidth position or the measured physical resource block position in the subframe set 2, predefining that the second communication node generates a measurement reference signal sequence based on the measured bandwidth in the subframe set 1;

the first communication node and the second communication node predefine that the second communication node generates a measurement reference signal sequence based on a measured bandwidth position or a measured physical resource block position in a long time slot and generates a measurement reference signal sequence based on a measured bandwidth in a short time slot; or, the second communication node is predefined to generate a measurement reference signal sequence based on the measured bandwidth position or the measured physical resource block position in a short time slot, and the second communication node is predefined to generate a measurement reference signal sequence based on the measured bandwidth in a long time slot.

Preferably, generating the measurement reference signal sequence based on the measurement bandwidth comprises:

the second communication node transmits a bandwidth or a measurement bandwidth according to the measurement reference signal configured by the first communication node, and generating a whole measurement reference signal sequence by adopting a zero correlation ZC sequence generation mode in the LTE or the LTE-A subsequent evolution of the LTE, and mapping the whole measurement reference signal sequence to frequency domain resources of a time domain symbol where the measurement reference signal is positioned.

Preferably, generating the measurement reference signal sequence based on the measured bandwidth location or the measured physical resource block location comprises:

the first communication node configures X sections of measurement reference signal transmission bandwidths or measurement bandwidths on frequency domain resources for the second communication node, and measurement reference signal sequences of each section of bandwidths are independently generated based on the positions of bandwidths or the positions of physical resource blocks of the bandwidths, wherein X is an integer greater than or equal to 2.

Preferably, the method for sending the uplink reference signal includes at least one of the following:

transmitting measurement reference signals on the continuous N configured measurement reference signal time domain resources;

and transmitting the measurement reference signals on N configured measurement reference signal time domain resources with an interval of M, wherein M is an integer greater than 1, and N is an integer greater than 1.

Preferably, the method comprises the steps of,

m is a predefined value, or a value configured by the first communication node by signaling;

n is a value indicated by the first communication node through signaling or a value obtained by calculating the number of measurement reference signal transmissions between measurement reference signal activation signaling and measurement reference signal deactivation signaling.

transmitting measurement reference signals on a plurality of time domain symbols in a time sequence by using an orthogonal mask;

the second communication node transmits measurement reference signals on different antenna panels by using different precoding matrixes, different beam forming weights or different directions;

the second communication node transmits measurement reference signals on different antenna panels using the same precoding matrix, the same beamforming weights or the same direction.

According to another aspect of the present invention, there is also provided a method for transmitting a reference signal, including:

the method comprises the steps that a second communication node receives signaling which is sent by a first communication node and used for indicating a generation method or a sending method of an uplink reference signal of the second communication node; or alternatively, the process may be performed,

a generation method or a transmission method of an uplink reference signal of the second communication node is predefined between the second communication node and the first communication node;

And the second communication node generates and transmits the uplink reference signal according to the generation method, or transmits the uplink reference signal by adopting an indicated transmission method.

Preferably, the signaling includes at least one of:

signaling for indicating uplink transmission waveforms;

signaling for indicating modulation coding mode index of uplink data;

signaling for indicating modulation mode of uplink data;

Preferably, when the transmission waveform used for indicating the signaling indication of the uplink transmission waveform is orthogonal frequency division multiplexing of discrete fourier transform spread spectrum, the method for generating the uplink reference signal of the signaling indication second communication node is to generate a measurement reference signal sequence based on a measurement bandwidth;

When the transmission waveform used for indicating the signaling indication of the uplink transmission waveform is cyclic prefix orthogonal frequency division multiplexing, the generation method of the uplink reference signal of the signaling indication second communication node is to generate a measurement reference signal sequence based on the measured bandwidth position or the measured physical resource block position.

Preferably, when the modulation scheme of the uplink data indicated by the signaling for indicating the modulation scheme of the uplink data is a modulation scheme of 16 quadrature amplitude modulation QAM or 64QAM or 256QAM or greater than 256QAM, or when the modulation coding scheme index of the uplink data indicated by the signaling for indicating the modulation coding scheme index of the uplink data is greater than or equal to C, the generating method of the uplink reference signal of the second communication node generates a measurement reference signal sequence based on the measured bandwidth position or the measured physical resource block position, otherwise, the generating method of the uplink reference signal of the second communication node generates a measurement reference signal sequence based on the measurement bandwidth, where C is a positive integer greater than or equal to 2.

Preferably, the method comprises the steps of,

when the bandwidth indicated by the signaling for indicating the uplink system bandwidth, the measurement reference signal allocation bandwidth or the measurement reference signal scheduling bandwidth is greater than or equal to D RBs, the generating method of the uplink reference signal for the second communication node indicates that the generating method of the uplink reference signal for the second communication node generates the measurement reference signal sequence based on the measured bandwidth position or the measured physical resource block position, otherwise, the generating method of the uplink reference signal for the second communication node generates the measurement reference signal sequence based on the measurement bandwidth, where D is a positive integer greater than or equal to 2.

Preferably, the method comprises the steps of,

the first communication node configures a time slot set 1 and a time slot set 2 to the second communication node through signaling, the signaling indicates the second communication node to generate a measurement reference signal sequence based on a measured bandwidth position or a measured physical resource block position in the time slot set 1, and generates a measurement reference signal sequence based on a measured bandwidth in the time slot set 2; or, the signaling indicates the second communication node to generate a measurement reference signal sequence based on a measured bandwidth position or a measured physical resource block position in the time slot set 2, and generate a measurement reference signal sequence based on a measured bandwidth in the time slot set 1;

the first communication node configures a subframe set 1 and a subframe set 2 to the second communication node through signaling, the signaling indicates the second communication node to generate a measurement reference signal sequence based on a measured bandwidth position or a measured physical resource block position in the subframe set 1, and generates a measurement reference signal sequence based on a measured bandwidth in the subframe set 2; or, the signaling indicates the second communication node to generate a measurement reference signal sequence based on the measured bandwidth position or the measured physical resource block position in the subframe set 2, and generate a measurement reference signal sequence based on the measurement bandwidth in the subframe set 1;

The first communication node configures a long time slot and a short time slot to the second communication node through signaling, the signaling indicates the second communication node to generate a measurement reference signal sequence based on a measured bandwidth position or a measured physical resource block position in the long time slot, and generates a measurement reference signal sequence based on a measured bandwidth in the short time slot; or the signaling indicates the second communication node to generate a measurement reference signal sequence based on the measured bandwidth position or the measured physical resource block position in the short time slot, and generate a measurement reference signal sequence based on the measured bandwidth in the long time slot.

Preferably, the method for generating the uplink reference signal of the second communication node predefined between the second communication node and the first communication node includes at least one of the following:

when the transmission waveform of the uplink reference signal sent by the second communication node is orthogonal frequency division multiplexing of discrete Fourier transform spread spectrum, the generation method of the uplink reference signal of the predefined second communication node between the second communication node and the first communication node is to generate a measurement reference signal sequence based on measurement bandwidth;

When the transmission waveform of the uplink reference signal sent by the second communication node is cyclic prefix orthogonal frequency division multiplexing, the generation method of the uplink reference signal of the second communication node is predefined between the second communication node and the first communication node, and a measurement reference signal sequence is generated based on a measured bandwidth position or a measured physical resource block position.

when the channel quality indicator CQI fed back by the second communication node to the first communication node is smaller than or equal to a preset first threshold value, the generation method of the predefined uplink reference signal of the second communication node between the second communication node and the first communication node is to generate a measurement reference signal sequence based on a measurement bandwidth;

when the channel quality indicator CQI fed back by the second communication node to the first communication node is greater than a preset first threshold value, the generation method of the predefined uplink reference signal of the second communication node between the second communication node and the first communication node is to generate a measurement reference signal sequence based on a measured bandwidth position or a measured physical resource block position;

Wherein the first threshold is an integer between 1 and 15.

Preferably, the method for generating the uplink reference signal of the second communication node predefined between the second communication node and the first communication node includes:

when the modulation mode of the uplink data is 16 quadrature amplitude modulation QAM or 64QAM or 256QAM or greater than 256QAM, or when the modulation coding mode index of the uplink data indicated by the signaling of the modulation coding mode index of the uplink data is greater than or equal to E, the method for generating the uplink reference signal of the second communication node is predefined between the second communication node and the first communication node to generate a measurement reference signal sequence based on the measured bandwidth position or the measured physical resource block position, otherwise, the method for generating the uplink reference signal of the second communication node is predefined to generate a measurement reference signal sequence based on the measurement bandwidth, wherein E is a positive integer greater than or equal to 2.

when the uplink system bandwidth, the measurement reference signal allocation bandwidth or the measurement reference signal scheduling bandwidth is greater than or equal to F RBs, predefining a generation method of the uplink reference signal of the second communication node between the second communication node and the first communication node to generate a measurement reference signal sequence based on a measured bandwidth position or a measured physical resource block position, otherwise predefining a generation method of the uplink reference signal of the second communication node to generate a measurement reference signal sequence based on the measurement bandwidth, wherein F is a positive integer greater than or equal to 2;

The second communication node and the first communication node predefine that the second communication node generates a measurement reference signal sequence based on a measured bandwidth position or a measured physical resource block position in a time slot set 1 and generates a measurement reference signal sequence based on a measured bandwidth in a time slot set 2; or, predefining that the second communication node generates a measurement reference signal sequence based on the measured bandwidth position or the measured physical resource block position in the time slot set 2, predefining that the second communication node generates a measurement reference signal sequence based on the measured bandwidth in the time slot set 1;

the second communication node and the first communication node predefine that the second communication node generates a measurement reference signal sequence based on a measured bandwidth position or a measured physical resource block position in a subframe set 1 and generates a measurement reference signal sequence based on a measurement bandwidth in a subframe set 2; or, predefining that the second communication node generates a measurement reference signal sequence based on the measured bandwidth position or the measured physical resource block position in the subframe set 2, predefining that the second communication node generates a measurement reference signal sequence based on the measured bandwidth in the subframe set 1;

the second communication node and the first communication node predefine that the second communication node generates a measurement reference signal sequence based on a measured bandwidth position or a measured physical resource block position in a long time slot and generates a measurement reference signal sequence based on a measured bandwidth in a short time slot; or, the second communication node is predefined to generate a measurement reference signal sequence based on the measured bandwidth position or the measured physical resource block position in a short time slot, and the second communication node is predefined to generate a measurement reference signal sequence based on the measured bandwidth in a long time slot.

and the second communication node generates a whole measurement reference signal sequence by adopting a zero correlation ZC sequence generation mode in LTE or LTE-A according to the measurement reference signal transmission bandwidth or the measurement bandwidth configured by the first communication node, and maps the whole measurement reference signal sequence to frequency domain resources of a time domain symbol where the measurement reference signal is located.

the first communication node configures a plurality of sections of measurement reference signal transmission bandwidths or measurement bandwidths on frequency domain resources for the second communication node, and the measurement reference signal sequence of each section of bandwidth is independently generated based on the position of the bandwidth or the physical resource block position of the bandwidth.

Preferably, the method comprises the steps of,

According to still another embodiment of the present invention, there is also provided a signaling indication device of a reference signal, applied to a first communication node, including:

the indication module is used for indicating a generation method or a sending method of an uplink reference signal of the second communication node to the second communication node through signaling; or alternatively, the process may be performed,

the first negotiation module is configured to predefine a generation method or a transmission method of an uplink reference signal of the second communication node between the first negotiation module and the second communication node, where the generation method is used for the second communication node to generate the uplink reference signal, and the transmission method is used for the second communication node to transmit the uplink reference signal.

Preferably, the signaling includes at least one of:

signaling for indicating uplink transmission waveforms;

signaling for indicating modulation coding mode index of uplink data;

signaling for indicating modulation mode of uplink data;

Preferably, the indication module is further used for

When the transmission waveform indicated by the signaling for indicating the uplink transmission waveform is orthogonal frequency division multiplexing of discrete Fourier transform spread spectrum, indicating the generation method of the uplink reference signal of the second communication node to the second communication node through the signaling to generate a measurement reference signal sequence based on a measurement bandwidth;

and when the transmission waveform indicated by the signaling for indicating the uplink transmission waveform is cyclic prefix orthogonal frequency division multiplexing, indicating the generation method of the uplink reference signal of the second communication node to the second communication node through signaling to generate a measurement reference signal sequence based on the measured bandwidth position or the measured physical resource block position.

Preferably, the indication module is further used for

Preferably, the indication module includes:

Preferably, the indication module is further configured to perform at least one of the following steps:

configuring a time slot set 1 and a time slot set 2 to the second communication node through signaling, wherein the second communication node generates a measurement reference signal sequence based on a measured bandwidth position or a measured physical resource block position in the time slot set 1, and generates a measurement reference signal sequence based on a measured bandwidth in the time slot set 2; or, the second communication node generates a measurement reference signal sequence based on the measured bandwidth position or the measured physical resource block position in the time slot set 2, and generates a measurement reference signal sequence based on the measured bandwidth in the time slot set 1;

configuring a subframe set 1 and a subframe set 2 to the second communication node through signaling, generating a measurement reference signal sequence by the second communication node on the basis of a measured bandwidth position or a measured physical resource block position in the subframe set 1, and generating a measurement reference signal sequence on the basis of a measurement bandwidth in the subframe set 2; or, the second communication node generates a measurement reference signal sequence based on the measured bandwidth position or the measured physical resource block position in the subframe set 2, and generates a measurement reference signal sequence based on the measured bandwidth in the subframe set 1;

A long time slot and a short time slot are configured to the second communication node through signaling, the second communication node generates a measurement reference signal sequence based on a measured bandwidth position or a measured physical resource block position in the long time slot, and generates a measurement reference signal sequence based on a measured bandwidth in the short time slot; or the second communication node generates a measurement reference signal sequence based on the measured bandwidth position or the measured physical resource block position in the short time slot, and generates a measurement reference signal sequence based on the measured bandwidth in the long time slot.

Preferably, the first negotiation module further comprises:

a first predefined unit, configured to, when the transmission waveform of the uplink reference signal sent by the second communication node is an orthogonal frequency division multiplexing with discrete fourier transform spread spectrum, predefine, between the first predefined unit and the second communication node, a method for generating the uplink reference signal of the second communication node to generate a measurement reference signal sequence based on a measurement bandwidth;

and a second predefined unit, configured to, when the transmission waveform of the uplink reference signal sent by the second communication node is cyclic prefix orthogonal frequency division multiplexing, predefine, between the second predefined unit and the second communication node, that the generation method of the uplink reference signal of the second communication node is to generate a measurement reference signal sequence based on the measured bandwidth position or the measured physical resource block position.

Preferably, the first negotiation module further comprises:

a third predefined unit, configured to, when a channel quality indicator CQI fed back by the second communication node to the first communication node is less than or equal to a predetermined first threshold, predefined a generation method of an uplink reference signal of the second communication node between the third predefined unit and the second communication node is to generate a measurement reference signal sequence based on a measurement bandwidth;

a fourth predefined unit, configured to, when a channel quality indicator CQI fed back by the second communication node to the first communication node is greater than a predetermined first threshold, predefine, with the second communication node, that a method for generating an uplink reference signal of the second communication node is to generate a measurement reference signal sequence based on a measured bandwidth location or a measured physical resource block location;

wherein the first threshold is an integer between 1 and 15.

Preferably, the first negotiation module is further configured to

When the modulation mode of the uplink data is 16 quadrature amplitude modulation QAM or 64QAM or 256QAM or greater than 256QAM, or when the modulation coding mode index of the uplink data indicated by the signaling of the modulation coding mode index of the uplink data is greater than or equal to E, the generation method of the uplink reference signal predefined between the uplink reference signal and the second communication node is to generate a measurement reference signal sequence based on the measured bandwidth position or the measured physical resource block position, otherwise, the generation method of the uplink reference signal predefined between the uplink reference signal and the second communication node is to generate a measurement reference signal sequence based on the measured bandwidth, wherein E is a positive integer greater than or equal to 2.

Preferably, the first negotiation module is further configured to perform at least one of the following steps:

when the uplink system bandwidth, the measurement reference signal allocation bandwidth or the measurement reference signal scheduling bandwidth is greater than or equal to F RBs, predefining a generation method of the uplink reference signal of the second communication node between the second communication node and the second communication node to generate a measurement reference signal sequence based on a measured bandwidth position or a measured physical resource block position, otherwise predefining a generation method of the uplink reference signal of the second communication node to generate a measurement reference signal sequence based on the measurement bandwidth, wherein F is a positive integer greater than or equal to 2;

predefining the second communication node to generate a measurement reference signal sequence based on a measured bandwidth position or a measured physical resource block position in a time slot set 1 and generate a measurement reference signal sequence based on a measured bandwidth in a time slot set 2 between the second communication node and the second communication node; or, predefining that the second communication node generates a measurement reference signal sequence based on the measured bandwidth position or the measured physical resource block position in the time slot set 2, predefining that the second communication node generates a measurement reference signal sequence based on the measured bandwidth in the time slot set 1;

Predefining between the second communication node and the second communication node, generating a measurement reference signal sequence based on a measured bandwidth position or a measured physical resource block position in a subframe set 1, and generating a measurement reference signal sequence based on a measurement bandwidth in a subframe set 2; or, predefining that the second communication node generates a measurement reference signal sequence based on the measured bandwidth position or the measured physical resource block position in the subframe set 2, predefining that the second communication node generates a measurement reference signal sequence based on the measured bandwidth in the subframe set 1;

the second communication node generates a measurement reference signal sequence based on a measured bandwidth position or a measured physical resource block position in a long time slot and generates a measurement reference signal sequence based on a measured bandwidth in a short time slot; or, the second communication node is predefined to generate a measurement reference signal sequence based on the measured bandwidth position or the measured physical resource block position in a short time slot, and the second communication node is predefined to generate a measurement reference signal sequence based on the measured bandwidth in a long time slot.

Preferably, the method comprises the steps of,

According to still another embodiment of the present invention, there is also provided a transmitting apparatus of a reference signal, applied to a second communication node, including:

the receiving module is used for receiving a signaling which is sent by the first communication node and used for indicating a generation method or a sending method of an uplink reference signal of the second communication node; or alternatively, the process may be performed,

the second negotiation module is used for predefining a generation method or a sending method of an uplink reference signal of the second communication node between the second negotiation module and the first communication node;

And the sending module is used for generating and sending the uplink reference signal by the second communication node according to the indicated generation method, or sending the uplink reference signal by adopting the indicated sending method.

Preferably, the signaling includes at least one of:

signaling for indicating uplink transmission waveforms;

signaling for indicating modulation coding mode index of uplink data;

signaling for indicating modulation mode of uplink data;

Preferably, the method comprises the steps of,

when the first communication node configures a time slot set 1 and a time slot set 2 to the second communication node through signaling, the signaling indicates the second communication node to generate a measurement reference signal sequence based on a measured bandwidth position or a measured physical resource block position in the time slot set 1, and generates a measurement reference signal sequence based on a measured bandwidth in the time slot set 2; or, the signaling indicates the second communication node to generate a measurement reference signal sequence based on a measured bandwidth position or a measured physical resource block position in the time slot set 2, and generate a measurement reference signal sequence based on a measured bandwidth in the time slot set 1;

when the first communication node configures a subframe set 1 and a subframe set 2 to the second communication node through signaling, the signaling indicates the second communication node to generate a measurement reference signal sequence based on a measured bandwidth position or a measured physical resource block position in the subframe set 1, and generates a measurement reference signal sequence based on a measured bandwidth in the subframe set 2; or, the signaling indicates the second communication node to generate a measurement reference signal sequence based on the measured bandwidth position or the measured physical resource block position in the subframe set 2, and generate a measurement reference signal sequence based on the measurement bandwidth in the subframe set 1;

When the first communication node configures a long time slot and a short time slot to the second communication node through signaling, the signaling indicates the second communication node to generate a measurement reference signal sequence based on a measured bandwidth position or a measured physical resource block position in the long time slot, and generates a measurement reference signal sequence based on a measured bandwidth in the short time slot; or the signaling indicates the second communication node to generate a measurement reference signal sequence based on the measured bandwidth position or the measured physical resource block position in the short time slot, and generate a measurement reference signal sequence based on the measured bandwidth in the long time slot.

Preferably, the second negotiation module comprises at least one of:

a first negotiation unit, configured to, when a transmission waveform of an uplink reference signal is orthogonal frequency division multiplexing of discrete fourier transform spread spectrum, predefine a method for generating the uplink reference signal of the second communication node between the first communication node and the first communication node to generate a measurement reference signal sequence based on a measurement bandwidth;

And the second negotiation unit is used for predefining the generation method of the uplink reference signal of the second communication node between the second negotiation unit and the first communication node to generate a measurement reference signal sequence based on the measured bandwidth position or the measured physical resource block position when the transmission waveform of the uplink reference signal is cyclic prefix orthogonal frequency division multiplexing.

Preferably, the second negotiation module comprises at least one of:

a third negotiation unit, configured to, when a channel quality indicator CQI fed back to the first communication node is less than or equal to a predetermined first threshold, predefine, between the third negotiation unit and the first communication node, a method for generating an uplink reference signal of the second communication node to generate a measurement reference signal sequence based on a measurement bandwidth;

a fourth negotiation unit, configured to, when a channel quality indicator CQI fed back to the first communication node is greater than a predetermined first threshold, predefine, between the fourth negotiation unit and the first communication node, that a method for generating an uplink reference signal of the second communication node generates a measurement reference signal sequence based on a measured bandwidth location or a measured physical resource block location;

wherein the first threshold is an integer between 1 and 15.

Preferably, the second negotiation module is further configured to

When the modulation mode of the uplink data is 16 quadrature amplitude modulation QAM or 64QAM or 256QAM or greater than 256QAM, or when the modulation coding mode index of the uplink data indicated by the signaling of the modulation coding mode index of the uplink data is greater than or equal to E, the generation method of the uplink reference signal of the second communication node predefined between the first communication node and the first communication node is to generate a measurement reference signal sequence based on the measured bandwidth position or the measured physical resource block position, otherwise, the generation method of the uplink reference signal of the second communication node predefined is to generate a measurement reference signal sequence based on the measured bandwidth, wherein E is a positive integer greater than or equal to 2.

Preferably, the second negotiation module is further configured to perform at least one of the following steps:

when the uplink system bandwidth, the measurement reference signal allocation bandwidth or the measurement reference signal scheduling bandwidth is greater than or equal to F RBs, predefining a generation method of the uplink reference signal of the second communication node between the first communication node and the first communication node to generate a measurement reference signal sequence based on a measured bandwidth position or a measured physical resource block position, otherwise predefining a generation method of the uplink reference signal of the second communication node to generate a measurement reference signal sequence based on the measurement bandwidth, wherein F is a positive integer greater than or equal to 2;

Predefining between the second communication node and the first communication node, generating a measurement reference signal sequence based on a measured bandwidth position or a measured physical resource block position in a time slot set 1, and generating a measurement reference signal sequence based on a measurement bandwidth in a time slot set 2; or, predefining that the second communication node generates a measurement reference signal sequence based on the measured bandwidth position or the measured physical resource block position in the time slot set 2, predefining that the second communication node generates a measurement reference signal sequence based on the measured bandwidth in the time slot set 1;

predefining between the second communication node and the first communication node, generating a measurement reference signal sequence based on a measured bandwidth position or a measured physical resource block position in a subframe set 1, and generating a measurement reference signal sequence based on a measurement bandwidth in a subframe set 2; or, predefining that the second communication node generates a measurement reference signal sequence based on the measured bandwidth position or the measured physical resource block position in the subframe set 2, predefining that the second communication node generates a measurement reference signal sequence based on the measured bandwidth in the subframe set 1;

the second communication node is predefined between the first communication node and the second communication node, and generates a measurement reference signal sequence based on a measured bandwidth position or a measured physical resource block position in a long time slot and generates a measurement reference signal sequence based on a measured bandwidth in a short time slot; or, the second communication node is predefined to generate a measurement reference signal sequence based on the measured bandwidth position or the measured physical resource block position in a short time slot, and the second communication node is predefined to generate a measurement reference signal sequence based on the measured bandwidth in a long time slot.

Preferably, M is a predefined value, or a value configured by the first communication node by signaling;

According to still another embodiment of the present invention, there is also provided a transmission system of a reference signal, including: a base station and a mobile terminal, wherein,

the base station is used for indicating a generation method or a sending method of an uplink reference signal of the mobile terminal to the mobile terminal through signaling; or predefining a generation method or a transmission method of the uplink reference signal of the mobile terminal with the mobile terminal.

The mobile terminal is configured to receive signaling sent by the base station and used to instruct a generating method or a sending method of an uplink reference signal of the second communication node; or predefining a generation method or a transmission method of an uplink reference signal of the mobile terminal with the base station;

and generating and transmitting the uplink reference signal according to the indicated generation method, or transmitting the uplink reference signal by adopting the indicated transmission method.

According to yet another embodiment of the present invention, there is also provided a storage medium including a stored program, wherein the program, when run, performs the method of any one of the above.

According to yet another embodiment of the present invention, there is also provided a processor for running a program, wherein the program when run performs the method of any of the above.

According to the invention, the first communication node indicates the generation method or the sending method of the uplink reference signal of the second communication node through signaling; or the generation method or the transmission method for negotiating the uplink reference signal of the second communication node between the first communication node and the second communication node can solve the problem of how to generate and transmit the measurement reference signal in the new system in the related art, thereby achieving the effect of generating and mode strategy reference signal in the new system.

Drawings

The accompanying drawings, which are included to provide a further understanding of the application and are incorporated in and constitute a part of this specification, illustrate embodiments of the application and together with the description serve to explain the application and do not constitute a limitation on the application. In the drawings:

fig. 1 is a block diagram of a hardware structure of a mobile terminal according to a reference signal transmission method according to an embodiment of the present application;

fig. 2 is a flow chart of signaling indication of a reference signal according to an embodiment of the application;

fig. 3 is a flowchart of a method of transmitting a reference signal according to an embodiment of the present application;

fig. 4 is a block diagram of a signaling indicating apparatus of a reference signal according to an embodiment of the present application;

fig. 5 is a block diagram of a signaling indicating apparatus of a reference signal according to a preferred embodiment of the present application;

fig. 6 is a block diagram of a signaling indicating device of a reference signal according to a preferred embodiment of the present application;

fig. 7 is a block diagram of a transmission apparatus of a reference signal according to an embodiment of the present application;

fig. 8 is a block diagram of a transmission apparatus of a reference signal according to a preferred embodiment of the present application;

fig. 9 is a block diagram of a transmission apparatus of a reference signal according to a preferred embodiment of the present application.

Detailed Description

The application will be described in detail hereinafter with reference to the drawings in conjunction with embodiments. It should be noted that, without conflict, the embodiments of the present application and features of the embodiments may be combined with each other.

It should be noted that the terms "first," "second," and the like in the description and the claims of the present application and the above figures are used for distinguishing between similar objects and not necessarily for describing a particular sequential or chronological order.

Example 1

The method according to the first embodiment of the present application may be implemented in a mobile terminal, a computer terminal or a similar computing device. Taking the mobile terminal as an example, fig. 1 is a block diagram of a hardware structure of the mobile terminal according to a reference signal transmission method according to an embodiment of the present application. As shown in fig. 1, the mobile terminal 10 may include one or more (only one is shown in the figure) processors 102 (the processors 102 may include, but are not limited to, a processing device such as a microprocessor MCU or a programmable logic device FPGA), a memory 104 for storing data, and a transmission device 106 for communication functions. It will be appreciated by those of ordinary skill in the art that the configuration shown in fig. 1 is merely illustrative and is not intended to limit the configuration of the electronic device described above. For example, the mobile terminal 10 may also include more or fewer components than shown in FIG. 1 or have a different configuration than shown in FIG. 1.

The memory 104 may be used to store software programs and modules of application software, such as program instructions/modules corresponding to the method for transmitting a reference signal in the embodiment of the present invention, and the processor 102 executes the software programs and modules stored in the memory 104, thereby performing various functional applications and data processing, that is, implementing the method described above. Memory 104 may include high-speed random access memory, and may also include non-volatile memory, such as one or more magnetic storage devices, flash memory, or other non-volatile solid-state memory. In some examples, the memory 104 may further include memory located remotely from the processor 102, which may be connected to the mobile terminal 10 via a network. Examples of such networks include, but are not limited to, the internet, intranets, local area networks, mobile communication networks, and combinations thereof.

The transmission means 106 is arranged to receive or transmit data via a network. The specific examples of networks described above may include wireless networks provided by the communication provider of the mobile terminal 10. In one example, the transmission device 106 includes a network adapter (Network Interface Controller, NIC) that can connect to other network devices through a base station to communicate with the internet. In one example, the transmission device 106 may be a Radio Frequency (RF) module for communicating with the internet wirelessly.

In this embodiment, a signaling indication method of a reference signal operating on the mobile terminal is provided, and fig. 2 is a flowchart of signaling indication of the reference signal according to an embodiment of the present invention, as shown in fig. 1, where the flowchart includes the following steps:

step S202, a first communication node indicates a generation method or a sending method of an uplink reference signal of a second communication node to the second communication node through signaling; or alternatively, the process may be performed,

step S204, a generating method or a transmitting method of an uplink reference signal of the second communication node is predefined between the first communication node and the second communication node, where the generating method is used for the second communication node to generate the uplink reference signal, and the transmitting method is used for the second communication node to transmit the uplink reference signal.

Through the steps, the first communication node indicates a generation method or a sending method of the uplink reference signal of the second communication node through signaling; or the generation method or the transmission method for negotiating the uplink reference signal of the second communication node between the first communication node and the second communication node can solve the problem of how to generate and transmit the measurement reference signal in the new system in the related art, thereby achieving the effect of generating and mode strategy reference signal in the new system.

Preferably, the signaling includes at least one of:

signaling for indicating uplink transmission waveforms;

signaling for indicating modulation coding mode index of uplink data;

signaling for indicating modulation mode of uplink data;

wherein the first threshold is an integer between 1 and 15.

The second communication node transmits a bandwidth or a measurement bandwidth according to the measurement reference signal configured by the first communication node, and generating a whole measurement reference signal sequence by adopting a zero correlation ZC sequence generation mode in the LTE or the LTE-A subsequent evolution of the LTE, and mapping the whole measurement reference signal sequence to frequency domain resources of a time domain symbol where the measurement reference signal is positioned. Each frequency domain segment or SRS sequence of frequency domain bandwidth is a partial sequence of an independent complete sequence. Alternatively, the SRS sequences for each frequency domain segment use the same root planting.

the first communication node configures X segments of measurement reference signal transmission bandwidths or measurement bandwidths on frequency domain resources for the second communication node, and sequences of each frequency domain segment are independently generated. Or, the measurement reference signal sequence of each bandwidth is independently generated based on the position of the bandwidth or the position of a physical resource block of the bandwidth, or the measurement reference signal sequence of each bandwidth is independently generated based on the SRS sequence ID and/or the SRS sequence length of each segment and/or the time domain position of the SRS sequence, wherein X is an integer greater than or equal to 2. Alternatively, the SRS sequences of the frequency domain segments are planted using different roots, and the SRS sequence root of each frequency domain segment is generated independently based on the SRS sequence ID of each segment and/or the SRS sequence length of each segment and/or the time domain position where the SRS sequence is located.

Preferably, the method comprises the steps of,

Example 2

The embodiment of the invention also provides a method for sending the reference signal, and fig. 3 is a flowchart of the method for sending the reference signal according to the embodiment of the invention, as shown in fig. 3, including:

step S302, a second communication node receives signaling sent by a first communication node and used for indicating a generation method or a sending method of an uplink reference signal of the second communication node; or alternatively, the process may be performed,

step S304, a generation method or a transmission method of an uplink reference signal of the second communication node is predefined between the second communication node and the first communication node;

in step S306, the second communication node generates and transmits the uplink reference signal according to the indicated generating method, or transmits the uplink reference signal by using the indicated transmitting method.

Through the steps, the second communication node determines a generation method or a sending method of an uplink reference signal of the second communication node through signaling indication; or the second communication node negotiates with the first communication node about the generation method or the transmission method of the uplink reference signal of the second communication node, generates the uplink reference signal according to the indicated generation method and transmits the uplink reference signal, or adopts the indicated transmission method to transmit the uplink reference signal, so that the problem of how to generate and transmit the measurement reference signal in a new system in the related art can be solved, and the effect of generating and transmitting the strategy reference signal in the new system can be achieved.

Preferably, the signaling includes at least one of:

signaling for indicating uplink transmission waveforms;

signaling for indicating modulation coding mode index of uplink data;

signaling for indicating modulation mode of uplink data;

Preferably, the method comprises the steps of,

Wherein the first threshold is an integer between 1 and 15.

Preferably, the method comprises the steps of,

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

Embodiments of the present application provide a mobile communication network (including, but not limited to, a 5G mobile communication network), where a network architecture of the network may include a network-side device (e.g., a base station) and a terminal. In this embodiment, an information transmission method capable of operating on the network architecture is provided, and it should be noted that the operating environment of the information transmission method provided in the embodiment of the present application is not limited to the network architecture. The new system in the present document comprises a 5G mobile communication network.

In the present application, the reference signal may be an uplink demodulation reference signal or a measurement reference signal or a downlink demodulation reference signal or a channel state information reference signal.

In the present application, the subframe set 1 and the subframe set 2, or the time slot set 1 and the time slot set 2 are the subframe sets or the time slot sets configured by the first communication node for the reference signal generating method of the second communication node, and the set number is not limited to 1 and 2, and may be other numbers, or may be a set a, a set B, or other english letters.

In the present application, the first communication node is a node for determining a transmission mode of a second communication node and performing a signaling instruction to the second communication node, and the second communication node is a node for receiving the signaling. In one implementation manner, the first communication node may be a base station of a macro cell, a base station or a transmission node of a small cell (small cell), a transmitting node in a high-frequency communication system, a transmitting node in an internet of things system, and the like, and the second communication node may be a node in a communication system such as a user terminal (UE), a mobile phone, a portable device, an automobile, and the like. In another implementation, a base station of a macrocell, a base station or a transmission node of a small cell, a transmission node in a high-frequency communication system, a transmission node in an internet of things system, or the like may be used as the second communication node, and a UE or the like may be used as the first communication node. Specifically, the method comprises the following steps:

In one embodiment, the first communication node indicates to the second communication node by signaling a method of generating an uplink reference signal.

The method for generating the uplink reference signal comprises at least one of the following steps: a measurement reference signal sequence is generated based on the measurement bandwidth, based on the measured bandwidth location or the measured physical resource block location.

The method for generating the measurement reference signal sequence based on the measurement bandwidth comprises the following steps: and the UE generates a whole SRS sequence by adopting a ZC (Zero Correlation) sequence generation mode in LTE/LTE-A according to the SRS transmission bandwidth or the measurement bandwidth configured by the base station, and then maps the SRS sequence to frequency domain resources of a time domain symbol where the SRS is located.

The method for generating the measurement reference signal sequence based on the measured bandwidth position or the measured physical resource block position is also called a packet-based SRS (Block wise based SRS) sequence generation mode, and specifically comprises the following steps: the base station configures a plurality of sections of SRS transmission bandwidths or measurement bandwidths on the frequency domain resources for the UE, and the SRS sequence of each section of bandwidth is independently generated based on the position of the bandwidth or the position of a physical resource block of the bandwidth.

Wherein the signaling includes at least one of: radio resource control, RRC, signaling, medium access control, MAC CE) signaling, and physical downlink control signaling.

In another embodiment, both the first communication node and the second communication node predefine a method for generating or transmitting an uplink reference signal of the second communication node.

Further, when the transmission waveform of the uplink signal sent by the second communication node is orthogonal frequency division multiplexing of discrete fourier transform spread spectrum, the method for generating the uplink reference signal of the second communication node is to generate a measurement reference signal sequence based on the measurement bandwidth; when the transmission waveform of the uplink signal sent by the second communication node is cyclic prefix orthogonal frequency division multiplexing, the generation method of the uplink reference signal of the second communication node generates a measurement reference signal sequence based on the measured bandwidth position or the measured physical resource block position;

or when the channel quality indicator CQI fed back by the second communication node to the first communication node is smaller than or equal to a preset first threshold value, the generation method of the uplink reference signal of the second communication node is to generate a measurement reference signal sequence based on the measurement bandwidth; when the channel quality indication CQI fed back by the second communication node to the first communication node is larger than a preset first threshold value, the generation method of the uplink reference signal of the second communication node generates a measurement reference signal sequence based on the measured bandwidth position or the measured physical resource block position; wherein the first threshold is an integer between 1 and 15.

In another embodiment, the first communication node indicates to the second communication node by signaling a method of generating an uplink reference signal.

Further, the signaling includes at least one of:

signaling for indicating uplink transmission waveforms;

modulation coding mode index signaling for indicating uplink data;

a modulation mode signaling for indicating uplink data;

when the transmission waveform indicated by the signaling for indicating the uplink transmission waveform is orthogonal frequency division multiplexing of discrete fourier transform spread spectrum, the method for generating the uplink reference signal of the second communication node is to generate a measurement reference signal sequence based on a measurement bandwidth; when the transmission waveform indicated by the signaling for indicating the uplink transmission waveform is cyclic prefix orthogonal frequency division multiplexing, the method for generating the uplink reference signal of the second communication node generates a measurement reference signal sequence based on the measured bandwidth position or the measured physical resource block position;

or when the modulation mode of the uplink data indicated by the modulation mode signaling for indicating the uplink data is 16 quadrature amplitude modulation QAM or 64QAM or 256QAM or a higher order modulation mode than 256QAM, or when the modulation coding mode index of the uplink data indicated by the modulation coding mode index signaling for indicating the uplink data is greater than or equal to C, the generating method of the uplink reference signal of the second communication node generates a measurement reference signal sequence based on the measured bandwidth position or the measured physical resource block position, otherwise, the generating method of the uplink reference signal of the second communication node generates a measurement reference signal sequence based on the measurement bandwidth, wherein C is a positive integer greater than or equal to 2;

In another embodiment, the first communication node indicates to the second communication node by signaling a method of sending the uplink reference signal.

The method for transmitting the uplink reference signal comprises at least one of the following steps: an orthogonal mask is used for measurement reference signals over a plurality of time domain symbols within a timing sequence.

Taking the measurement reference signal on 2 time domain symbols (denoted as symbol 1 and symbol 2) as an example, it is assumed that 2 UEs (UE 1 and UE 2) all transmit SRS on the same 2 time domain symbols, but the transmission bandwidths of these 2 UEs on the frequency domain are not equal and there is a partial overlap. To achieve orthogonality of the SRS for UE 1 with the SRS for UE 2, the base station may signal to configure UE 1 to use an orthogonal mask [ +1+1] for SRS sequences on symbol 1 and symbol 2, and may signal to configure UE 2 to use an orthogonal mask [ +1-1] for SRS sequences on symbol 1 and symbol 2.

The method for transmitting the uplink reference signal comprises at least one of the following steps: transmitting measurement reference signals on the continuous N configured measurement reference signal time domain resources, and transmitting measurement reference signals on the N configured measurement reference signal time domain resources with an interval of M; wherein M is an integer greater than 1, and N is an integer greater than 1.

The value of M may be a predefined value, or the size of M may be configured by the base station through signaling.

The value of N may be indicated by the base station through signaling, or may be obtained by calculating the number of SRS transmissions between the SRS activation signaling and the SRS deactivation signaling.

The method for transmitting the uplink reference signal comprises at least one of the following steps: the second communication node transmits measurement reference signals on different antenna panels by using different precoding matrixes or different beam forming weights or different directions, and the second communication node transmits measurement reference signals on different antenna panels by using the same precoding matrixes or the same beam forming weights or the same directions.

Example 3

The embodiment also provides a signaling indicating device for a reference signal, which is used for implementing the foregoing embodiments and preferred embodiments, and is not described in detail. As used below, the term "module" may be a combination of software and/or hardware that implements a predetermined function. While the means described in the following embodiments are preferably implemented in software, implementation in hardware, or a combination of software and hardware, is also possible and contemplated.

Fig. 4 is a block diagram of a signaling indicating apparatus of a reference signal according to an embodiment of the present invention, as shown in fig. 4, the apparatus including:

an indication module 42, configured to indicate, to a second communication node, a generation method or a transmission method of an uplink reference signal of the second communication node through signaling; or alternatively, the process may be performed,

a first negotiation module 44, configured to predefine a method for generating or sending an uplink reference signal of the second communication node between the first negotiation module and the second communication node.

Preferably, the signaling includes at least one of:

signaling for indicating uplink transmission waveforms;

signaling for indicating modulation coding mode index of uplink data;

signaling for indicating modulation mode of uplink data;

Preferably, the indication module 42 is further configured to

Fig. 5 is a block diagram of a signaling indicating device for a reference signal according to a preferred embodiment of the present invention, and as shown in fig. 5, the first negotiation module 44 further includes:

a first predefined unit 52, configured to, when the transmission waveform of the uplink reference signal sent by the second communication node is an orthogonal frequency division multiplexing of discrete fourier transform spread spectrum, predefine, with the second communication node, a method for generating the uplink reference signal of the second communication node to generate a measurement reference signal sequence based on a measurement bandwidth;

a second predefined unit 54, configured to, when the transmission waveform of the uplink reference signal sent by the second communication node is cyclic prefix orthogonal frequency division multiplexing, predefine, with the second communication node, that the generation method of the uplink reference signal of the second communication node is to generate a measurement reference signal sequence based on the measured bandwidth location or the measured physical resource block location.

Fig. 6 is a block diagram of a signaling indicating device for a reference signal according to a preferred embodiment of the present invention, and as shown in fig. 6, the first negotiation module 44 further includes:

a third predefined unit 62, configured to, when a channel quality indicator CQI fed back by the second communication node to the first communication node is less than or equal to a predetermined first threshold, predefine, with the second communication node, a method for generating an uplink reference signal of the second communication node to generate a measurement reference signal sequence based on a measurement bandwidth;

A fourth predefined unit 64, configured to, when a channel quality indicator CQI fed back by the second communication node to the first communication node is greater than a predetermined first threshold, predefine, with the second communication node, that a method for generating an uplink reference signal of the second communication node is to generate a measurement reference signal sequence based on a measured bandwidth location or a measured physical resource block location;

wherein the first threshold is an integer between 1 and 15.

Preferably, the first negotiation module 44 is further configured to

Preferably, the first negotiation module 44 is further configured to perform at least one of the following steps:

Preferably, the method comprises the steps of,

Example 4

Fig. 7 is a block diagram of a transmission apparatus of a reference signal according to an embodiment of the present invention, as shown in fig. 7, including:

a receiving module 72, configured to receive signaling sent by a first communication node and used to instruct a generating method or a sending method of an uplink reference signal of the second communication node; or alternatively, the process may be performed,

a second negotiation module 74, configured to predefine a generation method or a transmission method of an uplink reference signal of the second communication node between the second negotiation module and the first communication node;

And a sending module 76, configured to generate and send an uplink reference signal according to the indicated generating method by the second communication node, or send the uplink reference signal by using the indicated sending method.

Preferably, the signaling includes at least one of:

signaling for indicating uplink transmission waveforms;

signaling for indicating modulation coding mode index of uplink data;

signaling for indicating modulation mode of uplink data;

Preferably, the method comprises the steps of,

Fig. 8 is a block diagram of a reference signal transmitting apparatus according to a preferred embodiment of the present invention, and as shown in fig. 8, the second negotiation module 74 includes at least one of the following:

a first negotiation unit 82, configured to, when a transmission waveform of the uplink reference signal is an orthogonal frequency division multiplexing of a discrete fourier transform spread spectrum, predefine a method for generating the uplink reference signal of the second communication node between the first communication node and the first communication node to generate a measurement reference signal sequence based on a measurement bandwidth;

A second negotiation unit 84, configured to, when the transmission waveform of the uplink reference signal is cyclic prefix orthogonal frequency division multiplexing, predefine, between the second negotiation unit and the first communication node, that the uplink reference signal generation method of the second communication node is to generate a measurement reference signal sequence based on the measured bandwidth position or the measured physical resource block position.

Fig. 9 is a block diagram of a second configuration of the reference signal transmitting apparatus according to the preferred embodiment of the present invention, and as shown in fig. 9, the second negotiation module 74 includes at least one of the following:

a third negotiation unit 92, configured to, when a channel quality indicator CQI fed back to the first communication node is less than or equal to a predetermined first threshold, predefine a method for generating an uplink reference signal of the second communication node between the third negotiation unit and the first communication node to generate a measurement reference signal sequence based on a measurement bandwidth;

a fourth negotiation unit 94, configured to, when a channel quality indicator CQI fed back to the first communication node is greater than a predetermined first threshold, predefine, with the first communication node, that a method for generating an uplink reference signal of the second communication node generates a measurement reference signal sequence based on a measured bandwidth location or a measured physical resource block location;

Wherein the first threshold is an integer between 1 and 15.

Preferably, the second negotiation module 74 is further configured to

Preferably, the second negotiation module 74 is further configured to perform at least one of the following steps:

It should be noted that each of the above modules may be implemented by software or hardware, and for the latter, it may be implemented by, but not limited to: the modules are all located in the same processor; alternatively, the above modules may be located in different processors in any combination.

An embodiment of the present invention also provides a storage medium including a stored program, wherein the storage medium may be configured to store program code for performing the steps of:

s11, a first communication node indicates a generation method or a sending method of an uplink reference signal of a second communication node to the second communication node through signaling; or alternatively;

s12, predefining a generation method or a sending method of an uplink reference signal of the second communication node between the first communication node and the second communication node.

The above-described storage medium may be configured to store program code for performing the steps of:

s21, the second communication node receives a signaling which is sent by the first communication node and used for indicating a generation method or a sending method of an uplink reference signal of the second communication node; or alternatively;

s22, predefining a generation method or a transmission method of an uplink reference signal of the second communication node between the second communication node and the first communication node;

and S23, the second communication node generates and transmits the uplink reference signal according to the generation method, or transmits the uplink reference signal by adopting the indicated transmission method.

Alternatively, in the present embodiment, the storage medium may include, but is not limited to: a U-disk, a Read-Only Memory (ROM), a random access Memory (Random Access Memory, RAM), a removable hard disk, a magnetic disk, or an optical disk, or other various media capable of storing program codes.

Embodiments of the present invention also provide a processor for running a program, wherein the program when run performs the steps of any of the methods described above.

Optionally, in this embodiment, the above program is configured to execute the following steps:

The above procedure may also be used to perform the following steps:

Alternatively, specific examples in this embodiment may refer to examples described in the foregoing embodiments and optional implementations, and this embodiment is not described herein.

It will be appreciated by those skilled in the art that the modules or steps of the invention described above may be implemented in a general purpose computing device, they may be concentrated on a single computing device, or distributed across a network of computing devices, they may alternatively be implemented in program code executable by computing devices, so that they may be stored in a memory device for execution by computing devices, and in some cases, the steps shown or described may be performed in a different order than that shown or described, or they may be separately fabricated into individual integrated circuit modules, or multiple modules or steps within them may be fabricated into a single integrated circuit module for implementation. Thus, the present invention is not limited to any specific combination of hardware and software.

The above description is only of the preferred embodiments of the present invention and is not intended to limit the present invention, but various modifications and variations can be made to the present invention by those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A signaling indication method of a reference signal, comprising:

the method comprises the steps that a first communication node indicates a generation method of an uplink reference signal of a second communication node to the second communication node through signaling; or alternatively, the process may be performed,

a generation method of an uplink reference signal of the second communication node is predefined between the first communication node and the second communication node;

the method for generating the uplink reference signal comprises at least one of the following steps: generating a measurement reference signal sequence based on the measurement bandwidth, generating a measurement reference signal sequence based on the measured bandwidth location or the measured physical resource block location;

wherein the signaling includes at least one of: signaling for indicating the generation mode of the measurement reference signal sequence; signaling for indicating uplink transmission waveforms; signaling for indicating modulation coding mode index of uplink data; signaling for indicating modulation mode of uplink data; signaling for indicating uplink system bandwidth, measurement reference signal allocation bandwidth or measurement reference signal scheduling bandwidth; signaling for configuring a set of time slots, a set of subframes, or a long and short time slot;

The generation method of the uplink reference signal of the second communication node predefined between the first communication node and the second communication node comprises at least one of the following steps: when the transmission waveform of the uplink reference signal sent by the second communication node is orthogonal frequency division multiplexing of discrete Fourier transform spread spectrum, the generation method of the uplink reference signal of the predefined second communication node between the first communication node and the second communication node is to generate a measurement reference signal sequence based on measurement bandwidth; when the transmission waveform of the uplink reference signal sent by the second communication node is cyclic prefix orthogonal frequency division multiplexing, the generation method of the uplink reference signal of the second communication node is predefined between the first communication node and the second communication node, and a measurement reference signal sequence is generated based on the measured bandwidth position or the measured physical resource block position.

2. The method according to claim 1, wherein the method for generating the uplink reference signal by the first communication node to indicate the second communication node to the second communication node by signaling comprises:

3. The method according to claim 1, wherein the method for generating the uplink reference signal by the first communication node to indicate the second communication node to the second communication node by signaling comprises:

4. The method according to claim 1, wherein the method for generating the uplink reference signal by the first communication node to indicate the second communication node to the second communication node by signaling comprises:

5. The method according to claim 1, wherein the method for generating the uplink reference signal by the first communication node to indicate the second communication node to the second communication node by signaling comprises at least one of:

6. The method according to any one of claims 1 to 5, wherein the signaling comprises at least one of: radio resource control, RRC, signaling, medium access control, MAC CE, signaling, physical downlink control signaling.

7. The method according to claim 1, wherein the method of generating the uplink reference signal of the predefined second communication node between the first communication node and the second communication node comprises at least one of:

Wherein the first threshold is an integer between 1 and 15.

8. The method according to claim 1, wherein the method for generating the uplink reference signal of the second communication node predefined between the first communication node and the second communication node comprises:

9. The method according to claim 1, wherein the method of generating the uplink reference signal of the predefined second communication node between the first communication node and the second communication node comprises at least one of:

10. The method of any of claims 1, 7-8, wherein generating a measurement reference signal sequence based on a measurement bandwidth comprises:

11. The method according to any of claims 1, 7 to 8, wherein generating a measurement reference signal sequence based on the measured bandwidth locations or the measured physical resource block locations comprises:

12. A method for generating a reference signal, comprising:

the method comprises the steps that a second communication node receives signaling which is sent by a first communication node and used for indicating a generation method of an uplink reference signal of the second communication node; or alternatively, the process may be performed,

a generation method of an uplink reference signal of the second communication node is predefined between the second communication node and the first communication node;

the second communication node generates an uplink reference signal according to the generation method and sends the uplink reference signal;

The generation method of the uplink reference signal of the second communication node predefined between the second communication node and the first communication node comprises at least one of the following steps: when the transmission waveform of the uplink reference signal sent by the second communication node is orthogonal frequency division multiplexing of discrete Fourier transform spread spectrum, the generation method of the uplink reference signal of the predefined second communication node between the second communication node and the first communication node is to generate a measurement reference signal sequence based on measurement bandwidth; when the transmission waveform of the uplink reference signal sent by the second communication node is cyclic prefix orthogonal frequency division multiplexing, the generation method of the uplink reference signal of the second communication node is predefined between the second communication node and the first communication node, and a measurement reference signal sequence is generated based on a measured bandwidth position or a measured physical resource block position.

13. The method of claim 12, wherein the step of determining the position of the probe is performed,

when the transmission waveform indicated by the signaling for indicating the uplink transmission waveform is orthogonal frequency division multiplexing of discrete fourier transform spread spectrum, the method for generating the uplink reference signal of the second communication node by the signaling indicates that a measurement reference signal sequence is generated based on a measurement bandwidth;

14. The method of claim 12, wherein the step of determining the position of the probe is performed,

and when the modulation mode of the uplink data indicated by the signaling for indicating the modulation mode of the uplink data is 16 quadrature amplitude modulation QAM or 64QAM or 256QAM or a modulation mode greater than 256QAM, or when the modulation coding mode index of the uplink data indicated by the signaling for indicating the modulation coding mode index of the uplink data is greater than or equal to C, the generation method of the uplink reference signal of the signaling for indicating the second communication node generates a measurement reference signal sequence based on the measured bandwidth position or the measured physical resource block position, otherwise, the generation method of the uplink reference signal of the second communication node generates a measurement reference signal sequence based on the measured bandwidth, wherein C is a positive integer greater than or equal to 2.

15. The method of claim 12, wherein the step of determining the position of the probe is performed,

16. The method of claim 12, wherein the step of determining the position of the probe is performed,

17. The method according to any of claims 12 to 16, wherein the signaling comprises at least one of: radio resource control, RRC, signaling, medium access control, MAC CE, signaling, physical downlink control signaling.

18. The method according to claim 12, wherein the method of generating the uplink reference signal of the second communication node predefined between the second communication node and the first communication node comprises at least one of:

Wherein the first threshold is an integer between 1 and 15.

19. The method according to claim 12, wherein the method for generating the uplink reference signal of the second communication node predefined between the second communication node and the first communication node comprises:

20. The method according to claim 12, wherein the method of generating the uplink reference signal of the second communication node predefined between the second communication node and the first communication node comprises at least one of:

21. The method of any of claims 12, 19-20, wherein generating a measurement reference signal sequence based on a measurement bandwidth comprises:

22. The method according to any of claims 12, 19 to 20, wherein generating a measurement reference signal sequence based on the measured bandwidth locations or the measured physical resource block locations comprises:

23. A signaling indication device of a reference signal, applied to a first communication node, comprising:

an indication module, configured to indicate, to a second communication node, a method for generating an uplink reference signal of the second communication node through signaling; or alternatively, the process may be performed,

the first negotiation module is used for predefining a generation method of an uplink reference signal of the second communication node with the second communication node;

Wherein, the first negotiation module further comprises: a first predefined unit, configured to, when the transmission waveform of the uplink reference signal sent by the second communication node is an orthogonal frequency division multiplexing with discrete fourier transform spread spectrum, predefine, between the first predefined unit and the second communication node, a method for generating the uplink reference signal of the second communication node to generate a measurement reference signal sequence based on a measurement bandwidth; and a second predefined unit, configured to, when the transmission waveform of the uplink reference signal sent by the second communication node is cyclic prefix orthogonal frequency division multiplexing, predefine, between the second predefined unit and the second communication node, that the generation method of the uplink reference signal of the second communication node is to generate a measurement reference signal sequence based on the measured bandwidth position or the measured physical resource block position.

24. A reference signal generating apparatus for use in a second communication node, comprising:

a receiving module, configured to receive a signaling sent by a first communication node and used to instruct a generating method of an uplink reference signal of the second communication node; or alternatively, the process may be performed,

a second negotiation module, configured to predefine a method for generating an uplink reference signal of the second communication node between the second negotiation module and the first communication node;

The sending module is used for generating and sending an uplink reference signal by the second communication node according to the indicated generation method;

wherein the second negotiation module comprises at least one of: a first negotiation unit, configured to, when the transmission waveform of the uplink reference signal sent by the second communication node is an orthogonal frequency division multiplexing of discrete fourier transform spread spectrum, predefine a generation method of the uplink reference signal of the second communication node between the first communication node and the second communication node to generate a measurement reference signal sequence based on a measurement bandwidth; and the second negotiation unit is used for predefining the generation method of the uplink reference signal of the second communication node between the second communication node and the first communication node to generate a measurement reference signal sequence based on the measured bandwidth position or the measured physical resource block position when the transmission waveform of the uplink reference signal sent by the second communication node is cyclic prefix orthogonal frequency division multiplexing.

25. A system for generating a reference signal, comprising: a base station and a mobile terminal, wherein,

the base station is used for indicating the generation method of the uplink reference signal of the mobile terminal to the mobile terminal through signaling; or predefining a generation method of an uplink reference signal of the mobile terminal with the mobile terminal;

the mobile terminal is configured to receive signaling sent by the base station and used for indicating a generation method of an uplink reference signal of the mobile terminal; or predefining a generation method of an uplink reference signal of the mobile terminal with the base station;

generating an uplink reference signal according to the indicated generation method and sending the uplink reference signal;

The method for generating the uplink reference signal of the mobile terminal predefined between the base station and the mobile terminal comprises at least one of the following steps: when the transmission waveform of the uplink reference signal sent by the mobile terminal is orthogonal frequency division multiplexing of discrete Fourier transform spread spectrum, the generation method of the uplink reference signal of the predefined mobile terminal between the base station and the mobile terminal is to generate a measurement reference signal sequence based on a measurement bandwidth; when the transmission waveform of the uplink reference signal sent by the mobile terminal is cyclic prefix orthogonal frequency division multiplexing, the generation method of the uplink reference signal of the mobile terminal is predefined between the base station and the mobile terminal, and a measurement reference signal sequence is generated based on the measured bandwidth position or the measured physical resource block position.

26. A storage medium comprising a stored program, wherein the program when run performs the method of any one of claims 1 to 11, 12 to 22.

27. A processor for running a program, wherein the program when run performs the method of any one of claims 1 to 11, 12 to 22.