CN108282298A

CN108282298A - A kind of reference signal transmission method and device

Info

Publication number: CN108282298A
Application number: CN201710011174.1A
Authority: CN
Inventors: 陈艺戬; 李儒岳; 鲁照华; 吴昊; 高波
Original assignee: ZTE Corp
Current assignee: ZTE Corp
Priority date: 2017-01-06
Filing date: 2017-01-06
Publication date: 2018-07-13
Anticipated expiration: 2037-01-06
Also published as: CN108282298B; WO2018126830A1

Abstract

The invention discloses a kind of reference signal sending methods, including：Determine that the first of the first reference signal sends resource according to the first information；Determine first reference signal according to the second information or the first information and the second information second sends resource；Resource and second, which is sent, using described first sends resource transmission first reference signal.The present invention also discloses a kind of reference signal receiving method, reference signal sending device and reference signal reception devices.

Description

Reference signal transmission method and device

Technical Field

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

Background

In a wireless communication system, there may be a plurality of different types of reference signals that each play a different important role.

At present, the resource indexes, the time domain, the frequency domain, the code domain, and other sending resources corresponding to the reference signals are generally independent, so that the resources cannot be reused well, and the resource utilization rate is low.

Disclosure of Invention

In order to solve the existing technical problem, embodiments of the present invention provide a method and an apparatus for transmitting a reference signal.

The technical scheme of the embodiment of the invention is realized as follows:

the embodiment of the invention provides a reference signal sending method, which comprises the following steps:

determining a first transmission resource of a first reference signal according to the first information;

determining a second transmission resource of the first reference signal according to the second information or the first information and the second information;

and transmitting the first reference signal by using the first transmission resource and the second transmission resource.

In the foregoing solution, the first transmission resource and/or the second transmission resource is at least one of the following resources:

code/sequence resources;

port/antenna resources;

time domain resources;

frequency domain resources;

a power resource;

transmit beam/precoding resources.

In the above scheme, the first transmission resource is a first transmission sequence, and the second transmission resource is a second transmission sequence;

or the first transmission resource is a first transmission frequency domain resource, and the second transmission resource is a second transmission frequency domain resource;

or the first transmission resource is a first transmission time domain resource, and the second transmission resource is a second transmission time domain resource;

or the first transmission resource is a first transmission power resource, and the second transmission resource is a second transmission power resource;

or the first transmission resource is a first transmission beam/precoding resource, and the second transmission resource is a second transmission beam/precoding resource.

In the above scheme, the method further comprises:

determining the first information using a transmitting cell Identification (ID) or a transmitting node ID;

determining the second information using one of:

transmitting a resource ID or receiving a resource ID;

receiving a node ID;

and (4) receiving mode.

In the above scheme, the receiving manner includes at least one of:

a receiving antenna;

receiving a beam;

receiving a precoding weight;

a cell/sector is received.

In the above scheme, the method further comprises:

determining the first information according to the ID of the sending terminal or the ID of the receiving terminal; determining the second information according to the sending resource ID or the receiving resource ID;

or determining the first information according to the first reference signal type; determining the second information according to the sending resource ID or the receiving resource ID;

or determining the first information according to a first sending cell ID or a first sending node ID; determining the second information according to a second sending cell ID or a second sending node ID;

or determining the first information according to the ID of the first sending terminal or the ID of the first receiving terminal; and determining the second information according to the second transmitting terminal ID or the second receiving terminal ID.

In the above scheme, the method further comprises:

determining at least one of the first information and the second information according to configuration information of a second reference signal; wherein,

the second reference signal is a reference signal of the same type as the first reference signal; or the second reference signal is a different type of reference signal from the first reference signal.

In the above scheme, the first reference signal and the second reference signal satisfy one of the following conditions:

the first reference signal is a first measurement pilot signal, and the second reference signal is a second measurement pilot signal;

the first reference signal is a first synchronization signal, and the second reference signal is a second synchronization signal;

the first reference signal is a first demodulation pilot signal, and the second reference signal is a second demodulation pilot signal;

the first reference signal is a demodulation pilot signal, and the second reference signal is a measurement pilot signal;

the first reference signal is a measurement pilot signal, and the second reference signal is a demodulation pilot signal;

the first reference signal is a phase noise pilot signal, and the second reference signal is a demodulation pilot signal;

the first reference signal is a demodulation pilot signal, and the second reference signal is a phase noise pilot signal;

the first reference signal is a measurement pilot signal, and the second reference signal is a synchronization signal;

the first reference signal is a demodulation pilot signal, and the second reference signal is a synchronization signal.

In the foregoing scheme, the first information or the second information at least includes a current Radio Resource Control (RRC) state.

The embodiment of the invention also provides a reference signal receiving method, which comprises the following steps:

determining a first receiving resource of the first reference signal according to the first information;

determining a second sending and receiving resource of the first reference signal according to the second information or the first information and the second information;

receiving the first reference signal using the first and second receive resources.

In the foregoing solution, the first receiving resource and/or the second receiving resource is at least one of the following resources:

code/sequence resources;

port/antenna resources;

time domain resources;

frequency domain resources;

receive beam/precoding resources.

In the above scheme, the first receiving resource is a first receiving sequence; the second receiving resource is a second receiving sequence;

or the first receiving resource is a first receiving frequency domain resource; the second receiving resource is a second receiving frequency domain resource;

or the first receiving resource is a first receiving time domain resource; the second receiving resource is a second receiving time domain resource;

or the first receiving resource is a first receiving beam/precoding resource; the second receive resource is a second receive beam/precoding resource.

In the above scheme, the method further comprises:

determining the first information using a transmitting cell ID or a transmitting node ID;

determining the second information using one of:

transmitting a resource ID or receiving a resource ID;

receiving a node ID;

and (4) receiving mode.

In the above scheme, the method further comprises:

In the above scheme, the first information or the second information at least includes a current RRC state.

The embodiment of the present invention further provides a reference signal sending apparatus, including:

a first determining unit, configured to determine a first transmission resource of a first reference signal according to the first information; determining a second transmission resource of the first reference signal according to the second information or the first information and the second information;

a sending unit, configured to send the first reference signal by using the first sending resource and the second sending resource.

In the above scheme, the apparatus further comprises:

a second determining unit configured to determine the first information using a transmitting cell ID or a transmitting node ID; and determining the second information using one of:

transmitting a resource ID or receiving a resource ID;

receiving a node ID;

and (4) receiving mode.

In the above scheme, the apparatus further comprises:

a second determination unit configured to:

In the above scheme, the apparatus further comprises:

a second determining unit, configured to determine at least one of the first information and the second information according to configuration information of a second reference signal; wherein,

The embodiment of the invention also provides a reference signal receiving device, which comprises:

a third determining unit, configured to determine a first receiving resource of the first reference signal according to the first information; determining a second sending and receiving resource of the first reference signal according to the second information or the first information and the second information;

a receiving unit, configured to receive the first reference signal by using the first receiving resource and the second receiving resource.

In the above scheme, the apparatus further comprises:

a fourth determination unit configured to determine the first information using a transmitting cell ID or a transmitting node ID; and determining the second information using one of:

transmitting a resource ID or receiving a resource ID;

receiving a node ID;

and (4) receiving mode.

In the above scheme, the apparatus further comprises:

a fourth determination unit configured to:

In the above scheme, the apparatus further comprises:

a fourth determining unit, configured to determine at least one of the first information and the second information according to configuration information of a second reference signal; wherein,

According to the reference signal transmission method and device provided by the embodiment of the invention, a sending end determines a first sending resource of a first reference signal according to first information; determining a second transmission resource of the first reference signal according to the second information or the first information and the second information; transmitting the first reference signal using the first transmission resource and a second transmission resource; the receiving end determines a first receiving resource of the first reference signal according to the first information; determining a second sending and receiving resource of the first reference signal according to the second information or the first information and the second information; the first reference signal is received by the first receiving resource and the second receiving resource, the resource is divided into a plurality of parts, and the transmission resource of the reference information can be flexibly determined, so that the resource sharing (reusing) among different reference signals can be realized, and the utilization rate of the resource can be greatly improved.

Drawings

In the drawings, which are not necessarily drawn to scale, like reference numerals may describe similar components in different views. Like reference numerals having different letter suffixes may represent different examples of similar components. The drawings illustrate generally, by way of example, but not by way of limitation, various embodiments discussed herein.

Fig. 1 is a flowchart illustrating a method for transmitting a reference signal according to an embodiment of the present invention;

fig. 2 is a schematic flow chart of a method for receiving a reference signal according to an embodiment of the present invention;

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

fig. 4A-B are schematic diagrams illustrating a determination method of a first transmission resource and a second transmission resource according to an embodiment of the present invention;

FIG. 5 is a diagram illustrating a structure of a transmission resource according to an embodiment of the present invention;

FIGS. 6A-B are schematic diagrams illustrating a determination method for a second first transmission sequence and a second transmission sequence according to an embodiment of the invention;

FIGS. 7A-B are schematic diagrams illustrating a determination method of a first time-frequency domain resource and a second time-frequency domain resource according to a third embodiment of the invention;

FIG. 8A-B is a schematic diagram illustrating a determination method of a fourth first spatial domain resource and a second spatial domain resource according to an embodiment of the invention;

fig. 9A-B are schematic diagrams illustrating a fifth determination method of first and second transmission powers according to an embodiment of the invention;

fig. 10A-B are schematic diagrams illustrating a method for determining a sixth first transmission sequence and a second transmission sequence according to an embodiment of the invention;

fig. 11A-B are schematic diagrams illustrating a method for determining a first transmission resource and a second transmission resource according to six embodiments of the present invention;

fig. 12A-B are schematic diagrams illustrating another method for determining first and second transmission resources according to a sixth embodiment of the present invention;

fig. 13A-B are schematic diagrams illustrating a method for determining a first transmission resource and a second transmission resource according to a seventh embodiment of the present invention;

fig. 14A-B are schematic diagrams illustrating another method for determining a first transmission resource and a second transmission resource according to a seventh embodiment of the present invention;

15A-B are diagrams illustrating a method for determining a ninth first transmission resource and a second transmission resource according to an embodiment of the invention;

fig. 16 is a schematic structural diagram of a tenth reference signal transmitting apparatus according to an embodiment of the present invention;

fig. 17 is a schematic structural diagram of a tenth reference signal receiving apparatus according to an embodiment of the present invention;

fig. 18 is a schematic structural diagram of a ten-reference signal transmission system according to an embodiment of the present invention.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings and examples.

In a wireless communication system, there may be a plurality of different types of reference signals that each play a different important role. There are mainly the following types of reference signals:

the first type is a Synchronization Signal, which is mainly used for Synchronization between a transmitting end and a receiving end, and includes a downlink Synchronization Signal (SS) and an uplink Synchronization Signal or a Random Access Signal (RAS); the SS may be further divided into a Primary Synchronization Signal (PSS) mainly used for basic time interval Synchronization and a Secondary Synchronization Signal (SSs) used for aligning time interval unit sequence numbers.

The second type is a measurement reference signal, also called a measurement pilot signal, which is mainly used for measurement and feedback at the receiving end. According to different measurement purposes, the measurement method can be divided into mobility related measurement (RRM measurement), beam measurement (beammeasurement), channel state information measurement (CSI measurement), and Large-scale characteristics (Large-scale characteristics) measurement. There are mainly several types of measurement pilot signals:

a downlink Channel State Information reference signal (CSI-RS) is mainly used for downlink CSI measurement, but may also be used for beam measurement, mobility measurement and Large-scale properties measurement in an auxiliary manner;

an uplink Sounding Reference Signal (SRS) is mainly used for uplink CSI measurement, but may also be used for beam measurement, mobility measurement and Large-scale properties measurement in an auxiliary manner;

mobility Reference Signal (MRS) mainly used for Mobility-related measurements, which may be independent signals or synchronization signals, Reference demodulation signals of broadcast channels, or beam measurement Reference signals, and CSI-RS signals;

a Beam Reference Signal (BRS) mainly used for Beam training, and also used for Reference demodulation of a broadcast channel, mobility measurement, Large-scale properties measurement, and the like;

the characteristic measurement pilot is used for measuring Large-scale properties, and includes measurement of characteristics (properties) such as delay spread (delay spread), Doppler spread (Doppler spread), Doppler shift (Doppler shift), average gain (average) and average delay (average delay), Frequency shift (Frequency shift), average Received power (average Received power), Received Timing (Received Timing), channel correlation (channel correlation), angle of arrival (arrival angle), and the like, and may be an independent pilot or measurement of Large-scale properties by using pilot increasing density of other functions.

The third type is a reference demodulation signal, also called reference demodulation pilot frequency, after obtaining the channel information, the sending end can perform data/control transmission of precoding according to the channel information, and one or more layers of multi-antenna transmission technology can be adopted. Generally, each layer has a corresponding Demodulation Reference Signal (DMRS), and data or control information is demodulated by referring to a channel estimated by a Demodulation pilot in combination with a received Signal; the main use for reference demodulation includes:

reference demodulation pilot for data: for reference demodulation of data channels, multiple ports may be configured; the demodulation pilot signals include reference demodulation pilot signals of uplink data and reference demodulation pilot signals of downlink data.

Controlled reference demodulation pilot: a reference demodulation for a control channel, a plurality of ports being configurable; the control channel can be divided into a special control channel and a public control channel; the private/public control channels may be divided into a plurality of subclasses according to different transmission control information, and the control channels respectively need corresponding demodulation pilot frequencies; the reference demodulation pilot frequency can be divided into uplink and downlink control according to uplink and downlink distinction.

Broadcast reference demodulation pilot: reference demodulation for broadcast channels typically occurs only downstream. The reference demodulation pilot frequency of the broadcast channel can be an independent reference demodulation pilot frequency, and can also utilize a synchronization signal or BRS to perform reference demodulation;

it should be noted that DMRS may be used for measurement feedback of CSI in some cases, besides demodulation.

The fourth type of pilot is a Phase Noise estimation reference signal (PNCRS for short), which is also called Phase Noise estimation pilot, and is generally used for Phase Compensation when the Phase Noise is relatively large and also used for tracking frequency offset, so that the pilot may be regarded as a frequency offset estimation pilot; this type of pilot may occur individually, as a step division of the DMRS, and when the compensation of the phase noise is mainly used for demodulation of data, it may also be understood as a special demodulation pilot, and if it is also defined on the transmission layer, each layer corresponds to a port of the phase noise supplemental pilot, and may be considered as a part of the DMRS.

At present, the transmission resources such as the resource index, the time domain, the frequency domain, the resource location of the code domain, etc. corresponding to the reference signals are generally independent. For example, the synchronization signal and the BRS are 2 independent signals, the BRS and the CSI-RS are also two independent signals, and the CSI-RS and the DMRS are also two independent signals, which generally cannot be reused in terms of resources. In addition, if DMRSs of different channels are used, they can be regarded as two independent signals, and even if precoding is the same, it is not easy to fully utilize resources. In addition, for the same type of reference signals, the same base station sends to different users, and in some cases, the reference signals can be theoretically reused, but the problem of configuration flexibility is limited, so that resources cannot be reused well, and the resource utilization rate is low.

Based on this, in various embodiments of the invention: the sending terminal determines a first sending resource of the first reference signal according to the first information; determining a second transmission resource of the first reference signal according to the second information or the first information and the second information; transmitting a first reference signal by using the first transmission resource and the second transmission resource; the receiving end can determine a first receiving resource of the first reference signal according to the first information; determining a second receiving resource of the first reference signal according to the second information or the first information and the second information; and receiving a first reference signal according to the first receiving resource and the second receiving resource.

Example one

The embodiment of the invention provides a reference signal sending method, which is applied to a sending end, such as a terminal or a base station. As shown in fig. 1, the method includes:

step 101: determining a first transmission resource of a first reference signal according to the first information;

step 102: determining a second transmission resource of the first reference signal according to the second information or the first information and the second information;

wherein the first transmission resource and/or the second transmission resource is at least one of the following resources:

code/sequence resources;

port/antenna resources;

time domain resources;

frequency domain resources;

a power resource;

transmit beam/precoding resources.

Wherein, code/sequence resources: codes and sequences are essentially different names of the same concept, including: orthogonal code/sequence resources, scrambling code resources, etc., and cyclic shift resources of the sequence.

Port/antenna resources: antennas generally refer to the physical antenna concept, while ports generally refer to the virtual antenna concept, which may be mapped to ports by one or more physical antennas through some precoding process. The antenna resources include: transmit antenna resources and receive antenna resources. The port resources include: sending port resources and receiving port resources.

Time domain resources: common time domain resources include: time domain symbol resources, time slot resources of a time domain, time domain subframe resources, time interval units of the time domain and the like;

frequency domain resources: common frequency domain resources include subcarriers, groups of subcarriers, subbands, and so on.

Power resources: generally refers to the transmission power, which may be the transmission power of the frequency domain, the transmission power of the time domain, the transmission power of the code domain, or the transmission power of the beam, etc.;

transmit beam/precoding resource: the beam is a visual name of precoding, and the two are essentially the same technology, and the beam can be formed through precoding. The beam referred to herein may be a beam formed at baseband, a beam formed at radio frequency or a mixed beam formed at radio frequency and baseband.

Specifically, the first transmission resource is a first transmission sequence, and the second transmission resource is a second transmission sequence;

In practical application, the first information and the second information need to be determined first.

Based on this, in an embodiment, the method may further include:

determining the second information using one of:

transmitting a resource ID or receiving a resource ID;

receiving a node ID;

and (4) receiving mode.

In practical application, the node may refer to: and a base station.

The receiving mode comprises at least one of the following modes:

a receiving antenna;

receiving a beam;

receiving a precoding weight;

a cell/sector is received.

In one embodiment, the first information may be determined according to a sending terminal ID or a receiving terminal ID; and determining the second information according to the sending resource ID or the receiving resource ID.

Here, the sending terminal and the receiving terminal are determined according to whether the terminal is a sending terminal or a receiving terminal, specifically, when the terminal is a sending terminal, the terminal is called a sending terminal, and accordingly, the first information is determined according to the sending terminal ID; and determining the second information according to the sending resource ID or the receiving resource ID. When the terminal is a receiving terminal, the terminal is called as a receiving terminal, and correspondingly, the first information is determined according to the ID of the receiving terminal; and determining the second information according to the sending resource ID or the receiving resource ID.

The first information may also be determined according to the first reference signal type; and determining the second information according to the sending resource ID or the receiving resource ID.

The first information may also be determined according to a first sending cell ID or a first sending node ID; and determining the second information according to a second sending cell ID or a second sending node ID.

Here, in actual use, generally, when the first information is determined from the first transmission cell ID, the second information is determined from the second transmission cell ID. When the first information is determined according to a first sending node ID, the second information is determined according to a second sending node ID.

The first information may also be determined according to a first transmitting terminal ID or a first receiving terminal ID; and determining the second information according to the second transmitting terminal ID or the second receiving terminal ID.

Here, in actual application, the sending terminal and the receiving terminal are also determined according to whether the terminal is a sending terminal or a receiving terminal, specifically, when the terminal is a sending terminal, the terminal is called a sending terminal, the first information is determined according to a first sending terminal ID, and the second information is determined according to a second sending terminal ID; when the terminal is a receiving terminal, the terminal is called a receiving terminal at the moment, and correspondingly, the first information is determined according to the ID of the first receiving terminal; and determining the second information according to a second receiving terminal ID.

In an embodiment, at least one of the first information and the second information may be determined according to configuration information of a second reference signal; wherein,

Here, the first reference signal and the second reference signal may satisfy one of:

The first demodulation pilot signal may specifically be a data demodulation pilot signal or a control demodulation pilot signal. The first demodulation pilot signal and the second demodulation pilot signal have the following relations:

the first demodulation pilot signal is a data demodulation pilot signal, and the second demodulation pilot signal is a control demodulation pilot signal;

the first demodulation pilot signal is a data demodulation pilot signal, and the second demodulation pilot signal is other data demodulation pilot signals;

the first demodulation pilot signal is a control demodulation pilot signal, and the second demodulation pilot signal is other control demodulation pilot signals;

the first demodulation pilot signal is a control demodulation pilot signal, and the second demodulation pilot signal is a data demodulation pilot signal.

In an embodiment, when the first transmission resource or the second transmission resource is related to a current RRC state, the first information or the second information at least includes the current RRC state.

Step 103: and transmitting the first reference signal by using the first transmission resource and the second transmission resource.

Correspondingly, the embodiment of the invention provides a reference signal receiving method, which is applied to a receiving end, such as a base station or a terminal. Specifically, when the sending end is a terminal, the receiving end is a base station; when the transmitting end is a base station, the receiving end may be a terminal, another base station, or the like.

As shown in fig. 2, the method comprises the steps of:

step 201: determining a first receiving resource of the first reference signal according to the first information;

step 202: determining a second sending and receiving resource of the first reference signal according to the second information or the first information and the second information;

wherein the first receiving resource and/or the second receiving resource is at least one of the following resources:

code/sequence resources;

port/antenna resources;

time domain resources;

frequency domain resources;

receive beam/precoding resources.

The first receiving resource corresponds to a sending resource, and specifically, the first receiving resource is a first receiving sequence; the second receiving resource is a second receiving sequence;

Based on this, in an embodiment, the method may further include:

determining the second information using one of:

transmitting a resource ID or receiving a resource ID;

receiving a node ID;

and (4) receiving mode.

In practical application, the node may refer to: and a base station.

The receiving mode comprises at least one of the following modes:

a receiving antenna;

receiving a beam;

receiving a precoding weight;

a cell/sector is received.

In one embodiment, the first information may be determined according to a sending terminal ID or a receiving terminal ID; determining the second information according to the sending resource ID or the receiving resource ID;

The first information may also be determined according to the first reference signal type; determining the second information according to the sending resource ID or the receiving resource ID;

the first information may also be determined according to a first sending cell ID or a first sending node ID; determining the second information according to a second sending cell ID or a second sending node ID;

The first reference signal and the second reference signal may satisfy one of:

In an embodiment, when the first receiving resource or the second receiving resource is related to a current RRC state, the first information or the second information at least includes the current RRC state.

Step 203: receiving the first reference signal using the first and second receive resources.

It should be noted that: in practical application, the sending end and the receiving end determine the first information and the second information in the same way, and determine corresponding sending resources and receiving resources by using the same first information and second information.

An embodiment of the present invention further provides a transmission method of a reference signal, as shown in fig. 3, the method includes the following steps:

step 301: the sending terminal determines a first sending resource of the first reference signal according to the first information; determining a second transmission resource of the first reference signal according to the second information or the first information and the second information;

here, in actual application, when determining the second transmission resource, as shown in fig. 4A, the transmitting end may determine the second transmission resource according to the first information and the second information, as needed. As shown in fig. 4B, the transmitting end may also determine the second transmission resource according to the enemy information.

Step 302: the sending end sends a first reference signal by using the first sending resource and the second sending resource;

step 303: the receiving end determines a first receiving resource of the first reference signal according to the first information; determining a second receiving resource of the first reference signal according to the second information or the first information and the second information;

step 304: and receiving a first reference signal by using the first receiving resource and the second receiving resource.

The relationship between the first transmission resource and the second transmission resource may be as shown in table 1.

First transmission resource of first reference signal	Second transmission resource of first reference signal
		First transmission sequence	Second transmission sequence
First transmission time-frequency domain resource	Second transmission time-frequency domain resource
		First transmission power resource	Second transmission power resource
First transmission beam/precoding resource	Second transmission beam/precoding resource

TABLE 1

Then, correspondingly, the relationship of the first receiving resource and the second receiving resource may be as an example as shown in table 2.

First receiving resource of first reference signal	Second receiving resource of first reference signal
		First receiving sequence	Second receiving sequence
First receiving time-frequency domain resource	Second receiving time-frequency domain resource
		First received power resource	Second received power resource
First receive beam/precoding resource	Second receive beam/precoding resource

TABLE 2

As can be seen from the above description, in the embodiment of the present invention, as shown in fig. 5, the configuration of the first reference signal resource is divided into a plurality of parts, and the transmission resources of different parts can be configured more flexibly, for example, the generation of sequences, the positions of time-frequency resources, transmission beams, and the like can all be selected flexibly, so that it is easier to share one part of the transmission resources with other reference signals.

Wherein the other reference signals include: other reference signals of the same type, reference signals of different types, reference signals of other transmitting ends, and the like.

It should be noted that: the specific processing procedures of the transmitting end and the receiving end have been described in detail above, and are not described in detail here.

In the reference signal transmission method provided by the embodiment of the present invention, a sending end determines a first sending resource of a first reference signal according to first information; determining a second transmission resource of the first reference signal according to the second information or the first information and the second information; transmitting the first reference signal using the first transmission resource and a second transmission resource; the receiving end determines a first receiving resource of the first reference signal according to the first information; determining a second sending and receiving resource of the first reference signal according to the second information or the first information and the second information; the first reference signal is received by the first receiving resource and the second receiving resource, the resource is divided into a plurality of parts, and the transmission resource of the reference information can be flexibly determined, so that the resource sharing (reusing) among different reference signals can be realized, and the utilization rate of the resource can be greatly improved.

Example two

On the basis of the first embodiment, the present embodiment details the transmission method of the reference signal.

As shown in fig. 6A and 6B, the sequence resource to be transmitted of the reference signal is divided into at least two segments, including a first segment transmission sequence and a second segment transmission sequence (hereinafter referred to as a first transmission sequence and a second transmission sequence, respectively). Wherein,

the determination of the first transmission sequence depends on the cell ID, the first transmission sequences being different for different cells; the first transmission sequences of the same cell are identical. That is, the first information may be a cell ID.

For the second transmission sequence, even for different transmitters of the same cell, the second transmission sequence may be different due to differences in some resource index IDs. In practical applications, the second transmission sequence may be determined by a sequence (code domain) ID, or a beam (spatial domain) ID, or a time domain resource ID, or a frequency domain resource ID, or a combination of resource IDs of multiple domains. In addition to this, the second transmission sequence may be determined by a sequence ID and a cell ID, or a beam ID and a cell ID, or a time domain resource ID and a cell ID, or a frequency domain resource ID and a cell ID. That is, the second information may be a transmission or reception resource index ID.

Here, the cell ID may be a single cell ID, but is not limited to the case of a single cell ID, and the transmission sequence may be determined by a joint method of a plurality of cell IDs.

In addition, in actual application, the first information may be a cell ID or a transmitting node ID.

One benefit of this approach is: the first transmission sequence can well reuse some other reference signals, and if the reference signal is a measurement pilot signal, the first and second transmission sequences form a complete measurement pilot signal, and actually the first transmission sequence and the transmission sequence of the synchronization signal are completely the same, the first transmission sequence can be used as the transmission resource of the synchronization signal or a part of the transmission resource of the measurement pilot signal, so that the same resource can be well reused, and the resource is saved. Similar to the description of the measurement pilot signal and the synchronization signal, the case shown in table 3 is also possible.

TABLE 3

Among them, when two references belong to the same type of reference signal, reference signals facing different receiving ends are preferable.

For the receiving end, similar to the processing manner of the transmitting end, the receiving sequence resource of the reference signal is divided into at least two segments, then, the first information may be a cell ID or a transmitting node ID, and the second information may be a transmitting or receiving resource index ID.

EXAMPLE III

As shown in fig. 7A and 7B, the time-frequency-domain resource to be transmitted of the reference signal is divided into at least two parts, including a first part of the time-frequency-domain resource and a second part of the time-frequency-domain resource (which will be referred to as a first time-frequency-domain resource and a second time-frequency-domain resource in the following description). Wherein,

the determination of the first transmission time frequency domain resource depends on the cell ID, and the first transmission time frequency domain resources of different cells are different; the first transmission time-frequency domain resources of the same cell are the same. That is, the first information may be a cell ID.

For the second transmission time-frequency domain resource, even for different transmitters of the same cell, the second transmission time-frequency domain resource may be different due to a difference in resource index ID. In practical applications, the second transmission time-frequency domain resource may be determined by a sequence (code domain) ID, or a beam (space domain) ID, or a time-frequency domain resource ID, or a combination of resource IDs of multiple domains. In addition to this, it is also possible that the second transmission time-frequency domain resource is determined by the sequence ID and the cell ID, or by the beam ID and the cell ID, or by the time-frequency domain resource ID and the cell ID. That is, the second information may be a transmission resource index ID.

It should be noted that the resource index ID mentioned in the embodiment of the present invention may be a resource index ID of a transmission resource or a reception resource, and the time-frequency domain resource mentioned in the embodiment of the present invention may be a time-domain resource and/or a frequency-domain resource;

here, the cell ID may be a single cell ID, but is not limited to the case of a single cell ID, and the transmission time-frequency domain resource may be determined by a joint method of a plurality of cell IDs.

In addition, the first information may be a transmitting node ID in addition to the cell ID.

One benefit of this approach is: the first transmission time-frequency domain resource can well reuse some other reference signals, and assuming that the reference signals are measurement pilot signals, the first transmission time-frequency domain resource and the second transmission time-frequency domain resource form a complete measurement pilot signal, and actually the first transmission time-frequency domain resource and the transmission content are completely the same as the transmission time-frequency domain resource and the transmission content of the synchronization signal, then the signals transmitted on the first transmission time-frequency domain resource can be used as the synchronization signal and also can be used as a part of the measurement pilot signal, so that the same resource can be well reused, and resources are saved. Similar to the description of the measurement pilot signal and the synchronization signal, the case shown in table 2 is also possible.

TABLE 4

For the receiving end, similar to the processing manner of the transmitting end, the time-frequency domain resource for receiving the reference signal is divided into at least two parts, so the first information may be a cell ID or a transmitting node ID, and the second information may be a transmitting or receiving resource index ID.

Example four

As shown in fig. 8A and 8B, the spatial domain resources to be transmitted of the reference signal are divided into at least two parts, and the at least two parts of spatial domain resources may be used for transmitting the same information or different information, or may be further extended to a case of more than two parts. The spatial domain resources may be transmit beams, transmit antennas.

For convenience of description, in the following description, the divided two spatial domain resources are referred to as a first transmission spatial domain resource and a second transmission spatial domain resource. Wherein,

the determination of the first transmission space domain resources depends on the cell ID, and the first transmission space domain resources are different in different cells; the first sending airspace resources of the same cell are the same.

For the second transmission spatial resource, even for different transmitters of the same cell, the second transmission spatial resource may be different due to the difference of the resource index ID. In practical applications, the second transmission spatial domain resource may be determined by a sequence (code domain) ID, or a beam (spatial domain) ID, or a time-frequency domain resource ID, or a combination of resource IDs of multiple domains. In addition to this, it is also possible that the second transmission spatial domain resource is determined by the sequence ID and the cell ID, or by the beam ID and the cell ID, or by the time-frequency domain resource ID and the cell ID. That is, the second information may be a transmission resource index ID.

It should be noted that the resource index ID mentioned in the embodiment of the present invention may be a resource index ID of a transmission resource or a reception resource.

Here, the cell ID may be a single cell ID, but is not limited to the case of a single cell ID, and the transmission spatial resources may be determined by a joint method of one or more cell IDs.

One benefit of this approach is: the first transmit spatial domain resource can be well reused for some other reference signals, assuming that the reference signal is a measurement pilot signal, the first transmit spatial domain resource and the second transmit spatial domain resource are commonly used for transmitting the measurement pilot signal, and actually the first transmit spatial domain resource and the transmit content are completely the same as the transmit spatial domain resource and the transmit content of the synchronization signal, then the signal transmitted on the first transmit spatial domain resource can be used as the synchronization signal or a part of the measurement pilot signal, so that the same resource can be well reused, and the resource is saved. Similar to the description of the measurement pilot signal and the synchronization signal, the case shown in expression 3 is also possible.

TABLE 5

For the receiving end, the processing mode class of the transmitting end, the receiving space domain resource of the reference signal is divided into at least two parts, so the first information may be a cell ID or a transmitting node ID, and the second information may be a transmitting or receiving resource index ID.

EXAMPLE five

When the transmission resources are divided according to the second, third, and fourth embodiments, that is, when the transmission resources are divided into multi-part time-frequency domain, code domain (sequence), or space domain resources, as shown in fig. 9A and 9B, the first transmission resource may be a first transmission power, and the second transmission resource may be a second transmission power.

The first transmission power may be determined according to the cell ID, and the second transmission power may be determined by the resource index ID, or jointly determined by the cell ID and the resource index ID.

For the receiving end, the corresponding resources are obtained in a mode of configuring the receiving end by the sending end.

EXAMPLE six

The present embodiment provides a transmission method different from the transmission methods described in the second, third, and fourth embodiments.

As shown in fig. 10A and 10B, the sequence resource to be transmitted of the reference signal is divided into at least two segments, including a first segment transmission sequence and a second segment transmission sequence (hereinafter referred to as a first transmission sequence and a second transmission sequence, respectively). Wherein,

the determination of the first transmission sequence depends on the terminal ID, the first transmission sequence being different for different terminals; the first segment transmission sequences of the same terminal are identical.

For the second transmission sequence, even for the same terminal, the second transmission sequence may be different due to a difference in some resource index IDs. In practical applications, the second transmission sequence may be determined by a sequence (code domain) ID, or a beam (spatial domain) ID, or a time domain resource ID, or a frequency domain resource ID, or a combination of resource IDs of multiple domains. In addition to this, the second transmission sequence may be determined by a sequence ID and a terminal ID, or a beam ID and a terminal ID, or a time domain resource ID and a terminal ID, or a frequency domain resource ID and a terminal ID;

the terminal ID may be a single terminal ID, but is not limited to the case of a single terminal ID, and the transmission sequence may be determined by a joint method of a plurality of terminal IDs. It should be noted that, in this case, the terminal may be used as a transmitting end or a receiving end.

It should be noted that: similar to the transmission sequence class processing, as shown in fig. 10A and 10B, the resource to be transmitted may also be a time-frequency domain resource, and a space domain resource such as a transmission beam.

The benefits of this processing method are the same as those of the foregoing embodiments, and the effect of resource sharing can also be achieved, where resource sharing is performed for different reference signals of the same UE or UE group.

When transmission resources of different reference signals transmitted by the same transmitting node need to be shared, it is necessary to determine the first information according to a transmitting cell or a transmitting node (ID) and the second information according to a receiving node (ID) when one of the reference signals is generated, as shown in fig. 11A and 11B. In addition, the second information may also be determined according to a reception manner, as shown in fig. 12A and 12B. Wherein,

the receiving mode may include receiving antenna, receiving beam (receiving precoding), receiving precoding weight or receiving cell/receiving sector, etc.

For the receiving end, the receiving resource of the reference signal is divided into at least two parts, which is similar to the processing mode of the sending end and is not described again.

EXAMPLE seven

Embodiments two to six describe how to determine transmission resources for transmitting reference signals. In the present embodiment, how to determine transmission resources for a plurality of transmitting nodes to transmit reference signals is further described.

Specifically, if it is required that reference signals transmitted by different transmitting nodes (such as different base stations) can be effectively combined at the receiving end, when determining the transmission resource of one of the multiple reference signals of multiple transmitting nodes, it is required that the first information is determined according to the first transmitting cell or the first transmitting node (cell ID or transmitting node ID), and the second information is determined according to the second transmitting cell or the second transmitting node (cell ID or transmitting node ID), as shown in fig. 13A and 13B.

Thereby determining a first transmission resource according to the first information and a second transmission resource according to the second information or the first information and the second information, thereby transmitting the reference signal using the first transmission resource and the second transmission resource.

Similarly, if it is required that reference signals transmitted from different terminals can be effectively combined at the receiving end, transmission resources are required when determining one of the multiple reference signals of multiple terminals, so that the first information is determined according to the first terminal (first terminal ID) and the second information is determined according to the second terminal (second terminal ID), as shown in fig. 14A and 14B.

Example eight

The present embodiment describes in detail how to determine the transmission resources of the reference signal.

In practical applications, since the first transmission resource or the second transmission resource of the reference signal may be shared with the transmission resources of other reference signals, in some cases, the configuration of other reference signals needs to be considered when determining the transmission resource of the reference signal. Here, the other reference signal may be another reference signal of the same type as the reference signal; or may be a different type of reference signal than the reference signal.

For example, it is assumed that the reference signal to be transmitted is a first measurement pilot signal and is shared with the transmission resource of a second measurement pilot signal, and the transmission resource of the first measurement pilot signal is divided into a first transmission resource and a second transmission resource. Wherein the first transmission resource is determined according to the configuration parameter of the second measurement pilot signal. Or the second transmission resource is determined according to the configuration parameter of the second measurement pilot signal. This may enable the first transmission resource or the second transmission resource to be shared with part or all of the transmission resources of the second measurement pilot signal.

For another example, the reference signal to be transmitted is a first synchronization signal, and is shared with the transmission resource of the second synchronization signal, and the transmission resource of the first synchronization signal is divided into a first transmission resource and a second transmission resource. And the first sending resource is determined according to the configuration parameter of the second synchronous signal. Or the second transmission resource is determined according to the configuration parameter of the second synchronization signal. This may enable the first transmission resource or the second transmission resource to be shared with part or all of the transmission resource of the second synchronization signal.

The method can also be as follows: the reference signal to be transmitted is a first demodulation pilot signal, and is shared with the transmission resource of a second demodulation pilot signal, and the transmission resource of the first demodulation pilot signal is divided into a first transmission resource and a second transmission resource. Wherein the first transmission resource is determined according to the configuration parameter of the second demodulation pilot signal. Or the second transmission resource is determined according to the configuration parameter of the second demodulation pilot signal. This may enable the first transmission resource or the second transmission resource to be shared with part or all of the transmission resources of the second demodulation pilot signal.

Similarly, the reference signal to be transmitted may be a demodulation pilot signal, and the other reference signals are measurement pilot signals;

similarly, the reference signal to be transmitted may also be a measurement pilot signal, and the other reference signals are demodulation pilot signals;

similarly, the reference signal to be transmitted may also be a phase noise pilot signal, and the other reference signals are demodulation pilot signals;

similarly, the reference signal to be transmitted may also be a demodulation pilot signal, and the other reference signals are phase noise pilot signals;

similarly, the reference signal to be transmitted may also be a measurement pilot signal, and the other reference signals are synchronization signals;

similarly, the reference signal to be transmitted may also be a synchronization signal, and the other reference signals are measurement pilot signals;

similarly, the reference signal to be transmitted may be a demodulation pilot signal, and the other reference signals may be synchronization signals.

Example nine

Common RRC states can be classified into idle state, connected state, and possibly other states. In different RRC states, one situation may arise: a part of the transmission resources and the reception resources of the reference signal are not related to the RRC state, but a part of the transmission resources and the reception resources are related to the RRC state, as shown in fig. 15.

Specifically, as shown in fig. 15A, the first transmission resource may be a sequence resource, the sequence of which depends on the RRC state; the first transmission resource may also be a time-frequency domain resource, the time-frequency location depends on an RRC state, the first transmission resource may also be a power resource, the power level depends on the RRC state, the first transmission resource may also be a space domain resource, the transmission antenna depends on the RRC state, or the transmission beam depends on the RRC state.

As shown in fig. 15B, the second transmission resource may be a sequence resource, the sequence of which depends on the RRC state; the second transmission resource may also be a time-frequency domain resource, the time-frequency location depends on the RRC state, the second transmission resource may also be a power resource, the power level depends on the RRC state, the second transmission resource may also be a space domain resource, the transmission antenna depends on the RRC state, or the transmission beam depends on the RRC state.

Example ten

In order to implement the method of the embodiment of the present invention, the embodiment provides a reference signal sending apparatus, which is arranged at a sending end, such as a terminal or a base station. As shown in fig. 16, the apparatus includes:

a first determining unit 161, configured to determine a first transmission resource of the first reference signal according to the first information; determining a second transmission resource of the first reference signal according to the second information or the first information and the second information;

a sending unit 162, configured to send the first reference signal by using the first sending resource and the second sending resource.

In an embodiment, the apparatus may further include:

transmitting a resource ID or receiving a resource ID;

receiving a node ID;

and (4) receiving mode.

Wherein the second determination unit is configured to:

In practical application, the second determining unit is configured to determine at least one of the first information and the second information according to configuration information of a second reference signal; wherein,

In practical applications, the first determining unit 161 and the second determining unit may be implemented by a processor in a reference signal transmitting device; the transmitting unit 162 may be implemented by a transceiver in the reference signal transmitting apparatus.

Correspondingly, the embodiment of the invention also provides a reference signal receiving device which is arranged at a receiving end, such as a base station or a terminal. Specifically, when the sending end is a terminal, the receiving end is a base station; when the transmitting end is a base station, the receiving end may be a terminal, another base station, or the like.

As shown in fig. 17, the apparatus includes:

a third determining unit 171, configured to determine a first receiving resource of the first reference signal according to the first information; determining a second sending and receiving resource of the first reference signal according to the second information or the first information and the second information;

a receiving unit 172, configured to receive the first reference signal by using the first receiving resource and the second receiving resource.

In an embodiment, the apparatus may further include:

transmitting a resource ID or receiving a resource ID;

the node ID is received.

Wherein the fourth determining unit is configured to:

The fourth determining unit is configured to determine at least one of the first information and the second information according to configuration information of a second reference signal; wherein,

In practice, the third determining unit 171 and the fourth determining unit may be implemented by a processor in the reference signal receiving device, and the receiving unit 172 may be implemented by a transceiver in the reference signal receiving device.

In order to implement the method according to the embodiment of the present invention, this embodiment further provides a reference signal transmission system, as shown in fig. 18, where the system includes:

a transmitting end 181, configured to determine a first transmission resource of the first reference signal according to the first information; determining a second transmission resource of the first reference signal according to the second information or the first information and the second information; and transmitting a first reference signal using the first transmission resource and a second transmission resource;

a receiving end 182, configured to determine a first receiving resource of the first reference signal according to the first information; determining a second receiving resource of the first reference signal according to the second information or the first information and the second information; and receiving a first reference signal using the first and second receive resources.

It should be noted that: detailed descriptions of the apparatus and system of embodiments of the present invention may be understood with reference to the description of the method above.

The technical schemes described in the embodiments of the present invention can be combined arbitrarily without conflict.

As will be appreciated by one skilled in the art, embodiments of the present invention may be provided as a method, system, or computer program product. Accordingly, the present invention may take the form of a hardware embodiment, a software embodiment, or an embodiment combining software and hardware aspects. Furthermore, the present invention may take the form of a computer program product embodied on one or more computer-usable storage media (including, but not limited to, disk storage, optical storage, and the like) having computer-usable program code embodied therein.

The present invention is described with reference to flowchart illustrations and/or block diagrams of methods, apparatus (systems), and computer program products according to embodiments of the invention. It will be understood that each flow and/or block of the flow diagrams and/or block diagrams, and combinations of flows and/or blocks in the flow diagrams and/or block diagrams, can be implemented by computer program instructions. These computer program instructions may be provided to a processor of a general purpose computer, special purpose computer, embedded processor, or other programmable data processing apparatus to produce a machine, such that the instructions, which execute via the processor of the computer or other programmable data processing apparatus, create means for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.

These computer program instructions may also be stored in a computer-readable memory that can direct a computer or other programmable data processing apparatus to function in a particular manner, such that the instructions stored in the computer-readable memory produce an article of manufacture including instruction means which implement the function specified in the flowchart flow or flows and/or block diagram block or blocks.

These computer program instructions may also be loaded onto a computer or other programmable data processing apparatus to cause a series of operational steps to be performed on the computer or other programmable apparatus to produce a computer implemented process such that the instructions which execute on the computer or other programmable apparatus provide steps for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.

The above description is only a preferred embodiment of the present invention, and is not intended to limit the scope of the present invention.

Claims

1. A method for transmitting a reference signal, the method comprising:

2. The method of claim 1, wherein the first transmission resource and/or the second transmission resource is at least one of the following resources:

code/sequence resources;

port/antenna resources;

time domain resources;

frequency domain resources;

a power resource;

transmit beam/precoding resources.

3. The method according to claim 1,

the first transmission resource is a first transmission sequence, and the second transmission resource is a second transmission sequence;

4. The method of claim 1, further comprising:

determining the first information by using a sending cell Identification (ID) or a sending node ID;

determining the second information using one of:

transmitting a resource ID or receiving a resource ID;

receiving a node ID;

and (4) receiving mode.

5. The method of claim 4, wherein the receiving means comprises at least one of:

a receiving antenna;

receiving a beam;

receiving a precoding weight;

a cell/sector is received.

6. The method of claim 1, further comprising:

7. The method of claim 1, further comprising:

8. The method of claim 7, wherein the first reference signal and the second reference signal satisfy one of:

9. The method of claim 1, wherein the first information or the second information comprises at least a current Radio Resource Control (RRC) state.

10. A method for receiving a reference signal, the method comprising:

11. The method of claim 10, wherein the first receiving resource and/or the second receiving resource is at least one of the following resources:

code/sequence resources;

port/antenna resources;

time domain resources;

frequency domain resources;

receive beam/precoding resources.

12. The method of claim 10,

the first receiving resource is a first receiving sequence; the second receiving resource is a second receiving sequence;

13. The method of claim 10, further comprising:

determining the second information using one of:

transmitting a resource ID or receiving a resource ID;

receiving a node ID;

and (4) receiving mode.

14. The method of claim 10, further comprising:

15. The method of claim 10, further comprising:

16. The method of claim 15, wherein the first reference signal and the second reference signal satisfy one of:

17. The method of claim 10, wherein the first information or the second information comprises at least a current RRC state.

18. An apparatus for transmitting a reference signal, the apparatus comprising:

19. The apparatus of claim 18, further comprising:

transmitting a resource ID or receiving a resource ID;

receiving a node ID;

and (4) receiving mode.

20. The apparatus of claim 18, further comprising:

a second determination unit configured to:

21. The apparatus of claim 18, further comprising:

22. An apparatus for receiving a reference signal, the apparatus comprising:

23. The apparatus of claim 22, further comprising:

transmitting a resource ID or receiving a resource ID;

receiving a node ID;

and (4) receiving mode.

24. The apparatus of claim 22, further comprising:

a fourth determination unit configured to:

25. The apparatus of claim 22, further comprising: