CN108111271A

CN108111271A - Signaling instruction, the sending method of reference signal and the device of reference signal

Info

Publication number: CN108111271A
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: 2018-06-01
Anticipated expiration: 2037-06-16
Also published as: WO2018228339A1; CN108111271B

Abstract

The present invention provides signaling instruction, the sending method of reference signal and the device of a kind of reference signal, wherein, the signaling indication method of the reference signal includes：First communication node indicates the generation method or sending method of the uplink reference signals of second communication node by signaling；Alternatively, the generation method or sending method of the uplink reference signals of second communication node are predefined between first communication node and second communication node.Therefore, can solve the problems, such as how to generate and send measuring reference signals in new system in correlation technique, reaching can generate and mode strategy reference signal effect in new system.

Description

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

Technical Field

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

Background

In the related art, in Long Term Evolution (LTE), a Physical Downlink Control Channel (PDCCH) is used to carry uplink and Downlink scheduling information and uplink power Control information. Downlink Control Information (DCI) format (format) is divided into DCI formats 0, 1A, 1B, 1C, 1D, 2A, 3A, etc., and then, DCI formats 2B, 2C, 2D are added to LTE-a Release12(LTE-a Release 12) to support various applications and transmission modes. The first communication Node (e-Node-B, abbreviated as eNB) may configure a second communication Node device (UE) through downlink control information, or the second communication Node device receives configuration of a higher layer (high layer), which is also called to configure the UE through higher layer signaling.

A Sounding Reference Signal (SRS) is a Signal used between the second communication node device and the first communication node device to measure wireless Channel Information (CSI). In a long term evolution system, a UE (user equipment) transmits an uplink SRS (sounding reference signal) on the last data symbol of a transmission subframe at fixed time according to parameters such as a frequency band, a frequency domain position, a sequence cyclic shift, a period and subframe offset indicated by an eNB (evolved node B). And the eNB judges the uplink CSI of the UE 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 a study of LTE-A Release 10(LTE-A Release 10) it was proposed: in uplink communication, non-precoded SRS should be used, namely: the SRS is unique to an antenna, and a Reference Signal (DMRS) for demodulation of a Physical Uplink Shared Channel (PUSCH) is precoded. The first communication node can estimate the original CSI of the uplink by receiving the non-precoded SRS, and the precoded DMRS cannot enable the first communication node to estimate the original CSI of the uplink. At this time, when the UE transmits the non-precoded SRS using multiple antennas, SRS resources required by each UE are increased, which results in a decrease in the number of UEs that can be simultaneously multiplexed in the system. The UE may send the SRS through two triggering modes, namely, a higher layer signaling (also referred to as triggering through trigger type 0) or downlink control information (also referred to as triggering through trigger type 1), where the triggering is based on the higher layer signaling and the triggering is based on the downlink control information, and the triggering is based on the higher layer signaling and the non-periodic SRS. The LTE-A Release 10 is added with a mode of non-periodically sending the SRS, thereby improving the utilization rate of the SRS resource to a certain extent and improving the flexibility of resource scheduling.

With the development of communication technology, the demand of data services 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 becomes one of important communication means for solving future high-speed data communication. The available bandwidth for high frequency carrier communications is large to provide efficient high speed data communications. However, one of the great technical challenges facing high frequency carrier communication is: compared with low-frequency signals, high-frequency signals have very large fading in space, and although the problem of spatial fading loss occurs in outdoor communication of the high-frequency signals, more antennas can be generally used due to the reduction of the wavelength of the high-frequency signals, so that the communication can be performed based on beams to compensate the fading loss in space.

However, when the number of antennas increases, the problem of increased cost and power consumption is also caused by the digital beam forming because each antenna needs to have one radio frequency link. Therefore, studies in the related art tend to be more complex beamforming, i.e., the rf beam and the digital beam together form the final beam.

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

There is currently no effective solution to the problem of how to generate and transmit sounding reference signals in new systems in the related art.

Disclosure of Invention

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

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

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,

the method comprises the steps of 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, wherein the generation method is used for the second communication node to generate the uplink reference signal, and the sending method is used for the second communication node to send the uplink reference signal.

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

generating a measurement reference signal sequence based on the measurement bandwidth, generating a measurement reference signal sequence based on the measured bandwidth position or the measured physical resource block position.

Preferably, the signaling comprises at least one of:

signaling for indicating a measurement reference signal sequence generation manner;

signaling for indicating an uplink transmission waveform;

signaling for indicating a modulation coding mode index of uplink data;

signaling for indicating a modulation mode of uplink data;

signaling for indicating an uplink system bandwidth, a sounding reference signal allocation bandwidth, or a sounding reference signal scheduling bandwidth;

signaling for configuring a set of timeslots, a set of subframes, or a long and short timeslot.

Preferably, the method for the first communication node to indicate the second communication node through signaling to generate the uplink reference signal of the second communication node 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 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 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 second communication node through the signaling that the uplink reference signal generation method of the second communication node is used for generating a measurement reference signal sequence 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 a modulation mode of 16 quadrature amplitude modulation QAM or 64QAM or 256QAM or is 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, where C is a positive integer greater than or equal to 2.

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

Preferably, the method for the first communication node to indicate the second communication node through signaling that the uplink reference signal of the second communication node is generated includes at least one of the following:

the first communication node configures a time slot set 1 and a time slot set 2 to the second communication node through signaling, so 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 the time slot set 1, and generates a measurement reference signal sequence based on a measurement 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 timeslot set 2, and generates a measurement reference signal sequence based on the measurement bandwidth in the timeslot set 1;

the first communication node configures a subframe set 1 and a subframe set 2 to the second communication node through signaling, so 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 the subframe set 1 and generates a measurement reference signal sequence based on 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 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, and then 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 measurement 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 measurement bandwidth in the long time slot.

Preferably, the signaling comprises at least one of: radio Resource Control (RRC) signaling, Medium Access Control (MAC) CE signaling and physical downlink control signaling.

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

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, a method for generating the uplink reference signal of the second communication node between the first communication node and the second communication node is predefined 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, a method for generating the uplink reference signal of the second communication node between the first communication node and the second communication node is predefined to generate a measurement reference signal sequence based on a measured bandwidth position or a measured physical resource block position.

when the Channel Quality Indicator (CQI) fed back to the first communication node by the second communication node is less than or equal to a preset first threshold value, a method for generating an uplink reference signal of the second communication node between the first communication node and the second communication node is predefined to generate a measurement reference signal sequence based on measurement bandwidth;

when the Channel Quality Indicator (CQI) fed back to the first communication node by the second communication node is greater than a preset first threshold value, a method for generating an uplink reference signal of the second communication node between the first communication node and the second communication node is predefined, and a measurement reference signal sequence is generated 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 predefined second communication node between the first communication node and the second communication node includes:

when the modulation mode of the uplink data is a modulation mode of 16 Quadrature Amplitude Modulation (QAM) or 64QAM or 256QAM or more 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 more than or equal to E, the generation method of the uplink reference signal between the first communication node and the second communication node predefines 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 between the second communication node predefines the second communication node is to generate the measurement reference signal sequence based on the measured bandwidth, wherein the E is a positive integer more 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 an 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 measured bandwidth position or a measured physical resource block position, otherwise predefining a generation method of an uplink reference signal of the second communication node to generate a measurement reference signal sequence based on a measurement bandwidth, wherein F is a positive integer greater than or equal to 2;

predefining between the first communication node and the second communication node 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 measurement bandwidth in a time slot set 2; or, predefining 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 time slot set 2, and predefining the second communication node to generate a measurement reference signal sequence based on the measured bandwidth in the time slot set 1;

predefining between the first communication node and the second communication node 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 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 predefining the second communication node to generate a measurement reference signal sequence based on the measurement bandwidth in the subframe set 1;

predefining between the first communication node and the second communication node 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 measurement bandwidth in a short time slot; or, predefining 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 predefining the second communication node to generate the measurement reference signal sequence based on the measurement bandwidth in the long time slot.

Preferably, the generating of the sounding reference signal sequence based on the sounding bandwidth includes:

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

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

the first communication node configures X sections of measurement reference signal sending bandwidths or measurement bandwidths for the second communication node on frequency domain resources, and a measurement reference signal 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 X is an integer greater than or equal to 2.

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

transmitting a measurement reference signal on N continuous 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 first and second electrodes are formed of a metal,

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 times of sending the measurement reference signal between the measurement reference signal activation signaling and the measurement reference signal deactivation signaling.

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

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

and the second communication node transmits the measurement reference signal on different antenna panels by using the same precoding matrix, the same beamforming weight or the same direction.

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

a second communication node receives a 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,

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

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

Preferably, the signaling comprises at least one of:

signaling for indicating an uplink transmission waveform;

signaling for indicating a modulation coding mode index of uplink data;

signaling for indicating a modulation mode of uplink data;

Preferably, 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 indicated by the signaling 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 indicated by 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.

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 QAM, 64QAM, 256QAM, or more 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 method for generating the uplink reference signal of the signaling indicating 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 method for generating the uplink reference signal of the second communication node is to generate the measurement reference signal sequence based on the measured bandwidth, where C is a positive integer greater than or equal to 2.

Preferably, the first and second electrodes are formed of a metal,

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 signaling indicates that 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, otherwise, the method for generating the uplink reference signal of the second communication node generates the measurement reference signal sequence based on the measurement bandwidth, wherein D is a positive integer greater than or equal to 2.

Preferably, the first and second electrodes are formed of a metal,

the first communication node configures a time slot set 1 and a time slot set 2 to the second communication node through signaling, and then the signaling instructs 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 generate a measurement reference signal sequence based on a measurement bandwidth in the time slot set 2; or the signaling instructs 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 timeslot set 2, and to generate a measurement reference signal sequence based on the measured bandwidth in the timeslot set 1;

the first communication node configures a subframe set 1 and a subframe set 2 to the second communication node through signaling, and the signaling instructs 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 to generate a measurement reference signal sequence based on a measurement bandwidth in the subframe set 2; or the signaling instructs 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 to 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, and then the signaling instructs 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 generate a measurement reference signal sequence based on a measurement bandwidth in the short time slot; or the signaling instructs 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 to generate a measurement reference signal sequence based on the measurement bandwidth in the long time slot.

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

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, a method for generating the uplink reference signal of the second communication node between the second communication node and the first communication node is predefined 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, a method for generating the uplink reference signal of the second communication node between the second communication node and the first communication node is predefined to generate a measurement reference signal sequence based on a measured bandwidth position or a measured physical resource block position.

when the Channel Quality Indicator (CQI) fed back to the first communication node by the second communication node is less than or equal to a preset first threshold value, a method for generating an uplink reference signal of the second communication node between the second communication node and the first communication node is predefined to generate a measurement reference signal sequence based on measurement bandwidth;

when the channel quality indicator CQI fed back to the first communication node by the second communication node is greater than a preset first threshold value, a method for generating an uplink reference signal of the second communication node between the second communication node and the first communication node is predefined 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 predefined second communication node between the second communication node and the first communication node includes:

when the modulation mode of the uplink data is a modulation mode of 16 Quadrature Amplitude Modulation (QAM) or 64QAM or 256QAM or more 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 more than or equal to E, the method for generating the uplink reference signal between the second communication node and the first communication node predefines 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 between the second communication node predefines the second communication node to generate the measurement reference signal sequence based on the measured bandwidth, wherein E is a positive integer more 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 an 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 an uplink reference signal of the second communication node to generate a measurement reference signal sequence based on a 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 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 measurement bandwidth in a time slot set 2; or, predefining 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 time slot set 2, and predefining the second communication node to generate 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 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 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 predefining the second communication node to generate a measurement reference signal sequence based on the measurement bandwidth in the subframe set 1;

predefining between the second communication node and the first communication node 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 measurement bandwidth in a short time slot; or, predefining 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 predefining the second communication node to generate the measurement reference signal sequence based on the measurement bandwidth in the 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 transmission bandwidth or the measurement bandwidth of the measurement reference signal configured by the first communication node, and maps the whole measurement reference signal sequence to the frequency domain resource of the time domain symbol where the measurement reference signal is positioned.

the first communication node configures multiple sections of measurement reference signal sending bandwidths or measurement bandwidths for the second communication node on frequency domain resources, and a measurement reference signal 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.

Preferably, the first and second electrodes are formed of a metal,

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

the device comprises an indicating module, a sending module and a receiving module, wherein the indicating module is used for indicating 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,

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

Preferably, the signaling comprises at least one of:

signaling for indicating an uplink transmission waveform;

signaling for indicating a modulation coding mode index of uplink data;

signaling for indicating a 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 a generation method of an uplink reference signal of a second communication node to the second communication node through signaling 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, indicating the generation method of the uplink reference signal of the second communication node to the second communication node through signaling generates 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 comprises:

Preferably, the indicating 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, and then 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 measurement 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 timeslot set 2, and generates a measurement reference signal sequence based on the measurement bandwidth in the timeslot set 1;

configuring a subframe set 1 and a subframe set 2 to the second communication node through signaling, so 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 the subframe set 1, and generates a measurement reference signal sequence based on 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 measurement bandwidth in the subframe set 1;

configuring a long time slot and a short time slot 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 long time slot and generates a measurement reference signal sequence based on a measurement 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 measurement bandwidth in the long time slot.

Preferably, the first negotiation module further includes:

a first predefining unit, configured to predefine a generation method of an 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 measurement bandwidth when a transmission waveform of the uplink reference signal sent by the second communication node is orthogonal frequency division multiplexing of discrete fourier transform spread spectrum;

a second predefining unit, configured to predefine a generation method of an 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 the measured bandwidth position or the measured physical resource block position when a transmission waveform of the uplink reference signal sent by the second communication node is cyclic prefix orthogonal frequency division multiplexing.

Preferably, the first negotiation module further comprises:

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

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

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 a modulation mode of 16 Quadrature Amplitude Modulation (QAM) or 64QAM or 256QAM or more 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 more than or equal to E, the method for generating the uplink reference signal of the second communication node between the second communication node and 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, otherwise, the method for generating the uplink reference signal of the second communication node is predefined to generate the measurement reference signal sequence based on the measured bandwidth, wherein the E is a positive integer more 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 an 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 the measured bandwidth position or the measured physical resource block position, otherwise predefining a generation method of an uplink reference signal of the second communication node to generate a measurement reference signal sequence based on the measured bandwidth, wherein F is a positive integer greater than or equal to 2;

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

predefining between the second communication node and the second communication node 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 a long time slot and generates the measurement reference signal sequence based on the measurement bandwidth in a short time slot; or, predefining 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 predefining the second communication node to generate the measurement reference signal sequence based on the measurement bandwidth in the long time slot.

Preferably, the first and second electrodes are formed of a metal,

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

a receiving module, configured to receive a signaling sent by a first communication node and used for indicating a generation method or a sending method of an uplink reference signal of a second communication node; or,

a second negotiation module, configured to predefine a generation method or a transmission method of an uplink reference signal of the second communication node with 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 comprises at least one of:

signaling for indicating an uplink transmission waveform;

signaling for indicating a modulation coding mode index of uplink data;

signaling for indicating a modulation mode of uplink data;

Preferably, the first and second electrodes are formed of a metal,

when the first communication node configures a timeslot set 1 and a timeslot set 2 to the second communication node through signaling, the signaling instructs 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 timeslot set 1, and generate a measurement reference signal sequence based on a measurement bandwidth in the timeslot set 2; or the signaling instructs 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 timeslot set 2, and to generate a measurement reference signal sequence based on the measured bandwidth in the timeslot 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 instructs 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 to generate a measurement reference signal sequence based on a measurement bandwidth in the subframe set 2; or the signaling instructs 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 to 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 instructs 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 to generate a measurement reference signal sequence based on a measurement bandwidth in the short time slot; or the signaling instructs 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 to generate a measurement reference signal sequence based on the measurement bandwidth in the long time slot.

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

a first negotiation unit, configured to predefine a generation method of an 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 when a transmission waveform for transmitting the uplink reference signal is ofdm (orthogonal frequency division multiplexing) using discrete fourier transform spread spectrum;

a second negotiation unit, configured to predefine a generation method of an 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 measured bandwidth position or a measured physical resource block position when a transmission waveform for sending 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 predefine a generation method of an uplink reference signal of the second communication node between the first communication node and the third communication node to generate a sounding reference signal sequence based on a sounding bandwidth when a channel quality indicator CQI fed back to the first communication node is less than or equal to a predetermined first threshold;

a fourth negotiation unit, configured to predefine a generation method of an 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 measured bandwidth position or a measured physical resource block position when a channel quality indicator CQI fed back to the first communication node is greater than a predetermined first threshold;

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 a modulation mode of 16 Quadrature Amplitude Modulation (QAM) or 64QAM or 256QAM or more 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 more than or equal to E, the method for generating the uplink reference signal of the second communication node between the first communication node and 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, otherwise, the method for generating the uplink reference signal of the second communication node is predefined to generate the measurement reference signal sequence based on the measured bandwidth, wherein the E is a positive integer more 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 an 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 the measured bandwidth position or the measured physical resource block position, otherwise predefining a generation method of an uplink reference signal of the second communication node to generate a measurement reference signal sequence based on the measured bandwidth, wherein F is a positive integer greater than or equal to 2;

predefining 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 in a time slot set 1 and generate a measurement reference signal sequence based on the measurement bandwidth in a time slot set 2; or, predefining 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 time slot set 2, and predefining the second communication node to generate a measurement reference signal sequence based on the measured bandwidth in the time slot set 1;

predefining 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 in a subframe set 1 and generate a measurement reference signal sequence based on the measurement bandwidth in a subframe set 2; or, predefining 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 predefining the second communication node to generate a measurement reference signal sequence based on the measurement bandwidth in the subframe set 1;

predefining 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 in a long time slot and generate a measurement reference signal sequence based on the measurement bandwidth in a short time slot; or, predefining 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 predefining the second communication node to generate the measurement reference signal sequence based on the measurement bandwidth in the long time slot.

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

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 an uplink reference signal of the mobile terminal with the mobile terminal.

The mobile terminal is configured to receive a signaling sent by the base station and used for indicating a generation 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 sending the uplink reference signal according to the indicated generation method, or sending the uplink reference signal by adopting the indicated sending method.

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

According to yet another embodiment of the present invention, there is also provided a processor for executing a program, wherein the program executes to perform the method of any one of the above.

According to the invention, a first communication node indicates a generation method or a sending method of an uplink reference signal of a second communication node through signaling; or, the first communication node and the second communication node negotiate a method for generating or sending an uplink reference signal of the second communication node, so that a problem of how to generate and send a measurement reference signal in a new system in the related art can be solved, and an effect of generating and sending a mode policy reference signal in the new system can be achieved.

Drawings

The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this application, illustrate embodiment(s) of the invention and together with the description serve to explain the invention without limiting the invention. In the drawings:

fig. 1 is a block diagram of a hardware structure of a mobile terminal for transmitting a reference signal according to an embodiment of the present invention;

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

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

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

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

fig. 6 is a block diagram of a signaling indication apparatus of a reference signal according to a preferred embodiment of the present invention;

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

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

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

Detailed Description

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

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

Example 1

The method provided by the first embodiment of the present application may be executed in a mobile terminal, a computer terminal, or a similar computing device. Taking the operation on the mobile terminal as an example, fig. 1 is a hardware structure block diagram of the mobile terminal of the reference signal transmission method according to the embodiment of the present invention. As shown in fig. 1, the mobile terminal 10 may include one or more (only one shown) processors 102 (the processor 102 may include, but is 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 transmitting device 106 for communication functions. It will be understood by those skilled in the art that the structure shown in fig. 1 is only an illustration and is not intended to limit the structure of the electronic device. 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 reference signal transmission method in the embodiment of the present invention, and the processor 102 executes various functional applications and data processing by running the software programs and modules stored in the memory 104, so as to implement the above-mentioned method. The 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 instances, 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 device 106 is used for receiving or transmitting data via a network. Specific examples of the network described above may include a wireless network provided by a communication provider of the mobile terminal 10. In one example, the transmission device 106 includes a Network adapter (NIC) that can be connected to other Network devices through a base station to communicate with the internet. In one example, the transmission device 106 can be a Radio Frequency (RF) module, which is used to communicate with the internet in a wireless manner.

In this embodiment, a signaling indication method for a reference signal running in the mobile terminal is provided, and fig. 2 is a flowchart of signaling indication for a reference signal according to an embodiment of the present invention, as shown in fig. 1, 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,

step S204, a generating method or a sending 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 by the second communication node to generate the uplink reference signal, and the sending method is used by the second communication node to send 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 first communication node and the second communication node negotiate a method for generating or sending an uplink reference signal of the second communication node, so that a problem of how to generate and send a measurement reference signal in a new system in the related art can be solved, and an effect of generating and sending a mode policy reference signal in the new system can be achieved.

Preferably, the signaling comprises at least one of:

signaling for indicating an uplink transmission waveform;

signaling for indicating a modulation coding mode index of uplink data;

signaling for indicating a modulation mode of uplink data;

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

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

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

Preferably, the first and second electrodes are formed of a metal,

Example 2

An embodiment of the present invention further provides a method for sending a reference signal, and fig. 3 is a flowchart of the method for sending a reference signal according to the embodiment of the present invention, as shown in fig. 3, the method includes:

step S302, a second communication node receives a 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,

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

and step S306, the second communication node generates and sends the uplink reference signal according to the generation method of the indication, or sends the uplink reference signal by adopting the sending method of the indication.

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

Preferably, the signaling comprises at least one of:

signaling for indicating an uplink transmission waveform;

signaling for indicating a modulation coding mode index of uplink data;

signaling for indicating a modulation mode of uplink data;

Preferably, the first and second electrodes are formed of a metal,

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

Preferably, the first and second electrodes are formed of a metal,

Through the above description of the embodiments, those skilled in the art can clearly understand that the method according to the above embodiments can be implemented by software plus a necessary general hardware platform, and certainly can also be implemented by hardware, but the former is a better implementation mode in many cases. Based on such understanding, the technical solutions of the present invention may be embodied in the form of a software product, which is stored in a storage medium (e.g., ROM/RAM, magnetic disk, optical disk) and includes instructions for enabling a terminal device (e.g., a mobile phone, a computer, a server, or a network device) to execute the method according to the embodiments of the present invention.

The embodiment of the application provides a mobile communication network (including but not limited to a 5G mobile communication network), and the network architecture of the network can comprise a network side device (such as 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 an operating environment of the information transmission method provided in this embodiment is not limited to the network architecture. The new system in this document comprises a 5G mobile communication network.

It should be noted that, 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.

It should be noted that, in the present application, the subframe set 1 and the subframe set 2, or the timeslot set 1 and the timeslot set 2 are subframe sets or timeslot sets configured by the first communication node as a reference signal generation method for the second communication node, and the set numbers are not limited to 1 and 2, and may be other numbers, sets a and B, or other english letters.

It should be noted that, in this application, the first communication node is a node for determining a transmission mode of the second communication node and instructing signaling to the second communication node, and the second communication node is a node for receiving the signaling. In one implementation, 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 transmission node in a high frequency communication system, a transmission node in an internet of things system, or the like, and the second communication node may be a node in a communication system such as a User Equipment (UE), a mobile phone, a portable device, an automobile, or the like. In another implementation, a base station of a macro cell, 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, etc. may serve as the second communication node, and a UE, etc. may serve as the first communication node. Specifically, the method comprises the following steps:

in one embodiment, a first communication node indicates a generation method of an uplink reference signal to a second communication node through signaling.

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 position or the measured physical resource block position.

The method for generating the sounding reference signal sequence based on the sounding bandwidth specifically comprises the following steps: 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 the frequency domain resource of the time domain symbol where the SRS is located.

The method specifically includes the steps of generating a sounding reference signal sequence (SRS) based on a measured bandwidth position or a measured physical resource Block position, which is also called a packet-based SRS (Block with base SRS) sequence generation mode: the base station configures a plurality of sections of SRS sending bandwidths or measuring bandwidths for the UE on frequency domain resources, 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 comprises at least one of: radio Resource Control (RRC) signaling, Medium Access Control (MAC) control unit (MACCE) 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 the 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 is to generate a measurement reference signal sequence based on the measured bandwidth position or the measured physical resource block position;

or, when the CQI, which is the channel quality indicator fed back to the first communication node by the second communication node, is less than or equal to a predetermined first threshold, the method for generating the uplink reference signal of the second communication node is to generate a sounding reference signal sequence based on the sounding bandwidth; when the channel quality indicator CQI fed back to the first communication node by the second communication node is greater 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 value is an integer between 1 and 15.

In another embodiment, the first communication node indicates the generation method of the uplink reference signal to the second communication node through signaling.

Further, the signaling includes at least one of:

signaling for indicating an uplink transmission waveform;

a 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 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 transmission waveform indicated by the signaling for indicating the uplink transmission waveform 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 modulation mode of the uplink data indicated by the modulation mode signaling for indicating the uplink data is 16 QAM, 64QAM, 256QAM, or a modulation mode of a higher order 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 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, otherwise, the method for generating the uplink reference signal of the second communication node generates the measurement reference signal sequence based on the measurement bandwidth, where C is a positive integer greater than or equal to 2;

in another embodiment, the first communication node indicates the sending method of the uplink reference signal to the second communication node through signaling.

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

Taking the sounding reference signal over 2 time domain symbols (denoted as symbol 1 and symbol 2) as an example, assume that 2 UEs (UE 1 and UE 2) all transmit SRS over the same 2 time domain symbols, but the transmission bandwidths of the 2 UEs in the frequency domain are not equal and have partial overlap. To achieve orthogonality of the SRS for UE 1 and UE 2, the base station may signal UE 1 to use an orthogonal mask [ +1+1] for the SRS sequence on symbol 1 and symbol 2, and signal UE 2 to use an orthogonal mask [ +1-1] for the SRS sequence on symbol 1 and symbol 2.

The method for transmitting the uplink reference signal comprises at least one of the following steps: sending measurement reference signals on N continuous configured measurement reference signal time domain resources, and sending 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.

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 the measurement reference signal on different antenna panels by using different precoding matrixes or different beamforming weights or different directions, and the second communication node transmits the measurement reference signal on different antenna panels by using the same precoding matrix or the same beamforming weights or the same directions.

Example 3

In this embodiment, a signaling indication apparatus of a reference signal is further provided, and the apparatus is used to implement the foregoing embodiments and preferred embodiments, and the description already made is omitted. As used below, the term "module" may be a combination of software and/or hardware that implements a predetermined function. Although the means described in the embodiments below are preferably implemented in software, an implementation in hardware, or a combination of software and hardware is also possible and contemplated.

Fig. 4 is a block diagram of a signaling indication apparatus for reference signals according to an embodiment of the present invention, as shown in fig. 4, the apparatus includes:

an indicating module 42, configured to indicate, to a second communication node through signaling, a generation method or a sending method of an uplink reference signal of the second communication node; or,

a first negotiation module 44, configured to predefine a generation method or a sending method of an uplink reference signal of the second communication node with the second communication node.

Preferably, the signaling comprises at least one of:

signaling for indicating an uplink transmission waveform;

signaling for indicating a modulation coding mode index of uplink data;

signaling for indicating a modulation mode of uplink data;

Preferably, the indication module 42 is further used for

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

a first predefining unit 52, configured to predefine a generation method of an uplink reference signal of the second communication node between the second communication node and the second communication node to generate a sounding reference signal sequence based on a sounding bandwidth when a transmission waveform of the uplink reference signal sent by the second communication node is ofdm (orthogonal frequency division multiplexing) based on discrete fourier transform spread spectrum;

a second predefining unit 54, configured to predefine a generation method of an 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 the measured bandwidth position or the measured physical resource block position when a transmission waveform of the uplink reference signal sent by the second communication node is cyclic prefix orthogonal frequency division multiplexing.

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

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

a fourth predefining unit 64, configured to predefine, between the second communication node and the first communication node, a generation method of an uplink reference signal of the second communication node to generate a measurement reference signal sequence based on a measured bandwidth position or a measured physical resource block position when a channel quality indicator CQI fed back to the first communication node by the second communication node is greater than a predetermined first threshold;

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 first and second electrodes are formed of a metal,

Example 4

Fig. 7 is a block diagram of a transmitting 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 a signaling sent by a first communication node and used for indicating a generation method or a sending method of an uplink reference signal of a second communication node; or,

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 with the first communication node;

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

Preferably, the signaling comprises at least one of:

signaling for indicating an uplink transmission waveform;

signaling for indicating a modulation coding mode index of uplink data;

signaling for indicating a modulation mode of uplink data;

Preferably, the first and second electrodes are formed of a metal,

Fig. 8 is a block diagram of a first structure of a device for transmitting a reference signal 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 predefine a generation method of an uplink reference signal of the second communication node between the first communication node and the second communication node when a transmission waveform for transmitting the uplink reference signal is ofdm spread by discrete fourier transform, to generate a measurement reference signal sequence based on a measurement bandwidth;

a second negotiation unit 84, configured to predefine a generation method of an 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 the measured bandwidth position or the measured physical resource block position when a transmission waveform for sending the uplink reference signal is cyclic prefix orthogonal frequency division multiplexing.

Fig. 9 is a block diagram of a second structure of the apparatus for transmitting a reference signal 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 predefine a generation method of an uplink reference signal of the second communication node between the first communication node and the second communication node to generate a sounding reference signal sequence based on a sounding bandwidth when a channel quality indicator CQI fed back to the first communication node is less than or equal to a predetermined first threshold;

a fourth negotiation unit 94, configured to predefine a generation method of an 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 measured bandwidth position or a measured physical resource block position when a channel quality indicator CQI fed back to the first communication node is greater than a predetermined first threshold;

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, the above modules may be implemented by software or hardware, and for the latter, the following may be implemented, but not limited to: the modules are all positioned in the same processor; alternatively, the modules are respectively located in different processors in any combination.

Embodiments of the present invention also provide a storage medium comprising a stored program, wherein the storage medium may be configured to store program code for performing the steps of:

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

s12, predefining a method for generating or transmitting an uplink reference signal of the second communication node between the first communication node and the second communication node.

The 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 the uplink reference signal of the second communication node; or;

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 sends the uplink reference signal according to the generation method, or sends the uplink reference signal by adopting an indicated sending method.

Optionally, in this embodiment, the storage medium may include, but is not limited to: various media capable of storing program codes, such as a usb disk, a Read-Only Memory (ROM), a Random Access Memory (RAM), a removable hard disk, a magnetic disk, or an optical disk.

Embodiments of the present invention also provide a processor configured to execute a program, where the program executes to perform any of the steps in the method.

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

The above program may also be used to perform the steps of:

Optionally, the specific examples in this embodiment may refer to the examples described in the above embodiments and optional implementation manners, and this embodiment is not described herein again.

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

The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the principle of the present invention should be included in the protection scope of the present invention.

Claims

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

and 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.

2. The method of claim 1, wherein the method for generating the uplink reference signal comprises at least one of:

3. The method of claim 1, wherein the signaling comprises at least one of:

signaling for indicating an uplink transmission waveform;

signaling for indicating a modulation coding mode index of uplink data;

signaling for indicating a modulation mode of uplink data;

4. The method according to claim 3, wherein the method for the first communication node to indicate the second communication node to generate the uplink reference signal of the second communication node through signaling comprises:

5. The method according to claim 3, wherein the method for the first communication node to indicate the second communication node to generate the uplink reference signal of the second communication node through signaling comprises:

6. The method according to claim 3, wherein the method for the first communication node to indicate the second communication node to generate the uplink reference signal of the second communication node through signaling comprises:

7. The method according to claim 3, wherein 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 comprises at least one of:

8. The method according to any of claims 3 to 7, wherein the signaling comprises at least one of: radio Resource Control (RRC) signaling, Medium Access Control (MAC) CE signaling and physical downlink control signaling.

9. The method according to claim 2, wherein the method for generating the uplink reference signal between the first communication node and the second communication node, which predefines the second communication node, comprises at least one of:

10. The method according to claim 2, wherein the method for generating the uplink reference signal between the first communication node and the second communication node, which predefines the second communication node, comprises at least one of:

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

11. The method according to claim 2, wherein the method for generating the uplink reference signal between the first communication node and the second communication node, which predefines the second communication node, comprises:

12. The method according to claim 2, wherein the method for generating the uplink reference signal between the first communication node and the second communication node, which predefines the second communication node, comprises at least one of:

13. The method of any of claims 9 to 11, wherein generating a sounding reference signal sequence based on the sounding bandwidth comprises:

14. The method of any of claims 9 to 11, wherein generating a measurement reference signal sequence based on a measured bandwidth location or a measured physical resource block location comprises:

15. The method of claim 1, wherein the uplink reference signal transmission method comprises at least one of:

16. The method of claim 15,

17. The method of claim 1, wherein the uplink reference signal transmission method comprises at least one of:

18. A method for transmitting a reference signal, comprising:

19. The method of claim 18, wherein the method for generating the uplink reference signal comprises at least one of:

20. The method of claim 18, wherein the signaling comprises at least one of:

signaling for indicating an uplink transmission waveform;

signaling for indicating a modulation coding mode index of uplink data;

signaling for indicating a modulation mode of uplink data;

21. The method of claim 20,

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 indicated by the signaling for indicating the second communication node is to generate a measurement reference signal sequence based on a measurement bandwidth;

22. The method of claim 20,

when the modulation mode of the uplink data indicated by the signaling for indicating the modulation mode of the uplink data is a modulation mode of 16 Quadrature Amplitude Modulation (QAM) or 64QAM or 256QAM or more 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 more than or equal to C, the signaling indicates that 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, 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 more than or equal to 2.

23. The method of claim 20,

24. The method of claim 20,

25. The method according to any of claims 20 to 24, wherein the signaling comprises at least one of: radio Resource Control (RRC) signaling, Medium Access Control (MAC) CE signaling and physical downlink control signaling.

26. The method according to claim 19, wherein the method for generating the uplink reference signal between the second communication node and the first communication node, which predefines the second communication node, comprises at least one of:

27. The method according to claim 19, wherein the method for generating the uplink reference signal between the second communication node and the first communication node, which predefines the second communication node, comprises at least one of:

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

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

29. The method according to claim 19, wherein the method for generating the uplink reference signal between the second communication node and the first communication node, which predefines the second communication node, comprises at least one of:

30. The method of any one of claims 26 to 29, wherein generating a sounding reference signal sequence based on the sounding bandwidth comprises:

31. The method of any one of claims 26 to 29, wherein generating a measurement reference signal sequence based on a measured bandwidth location or a measured physical resource block location comprises:

32. The method of claim 18, wherein the uplink reference signal transmission method comprises at least one of:

33. The method of claim 32,

34. The method of claim 18, wherein the uplink reference signal transmission method comprises at least one of:

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

and the first 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 first negotiation module and the second communication node.

36. A device for sending a reference signal, applied to a second communication node, comprising:

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

38. A storage medium comprising a stored program, wherein the program when executed performs the method of any one of claims 1 to 17, 18 to 34.

39. A processor, configured to run a program, wherein the program when running performs the method of any one of claims 1 to 17, 18 to 34.