CN108347323B - RS generating and receiving method, terminal and base station - Google Patents

Abstract

The present application discloses an RS generation and reception method, a terminal, and a base station. The terminal can determine a reference signal sequence initialization value according to a first parameter set, and generate an RS sequence according to the reference signal sequence initialization value. The first parameter set includes a time number, and the number of symbols included in the time unit is less than the number of symbols included in one slot. The RS sequences provided in the embodiments of this application may be applicable to 5G or future communication systems.

Description

RS generation and reception method, terminal and base station

technical field

The present application relates to the field of mobile communication technologies, and in particular, to a method for generating and receiving an RS, a terminal, and a base station.

Background technique

In Long Term Evolution (Long Term Evolution, LTE) communication, the basic unit of scheduling is a slot (ie, a time slot). And the reference signal (Reference Signal, RS) is generated by adopting the RS formula defined by the LTE protocol, for example, a channel state information reference signal (Channel State Information Reference Signal, CSI-RS), a demodulation reference signal (Demodulation Reference Signal, DMRS), cell reference signal (Cell-specific Reference Signal, CRS), frequency hopping of uplink RS, etc., and the generation formulas of these RSs all take the slot number as one of the parameters.

At present, mobile communication has developed to 5G (for example, New Radio (NR)), in 5G communication, the time unit of scheduling is no longer a slot, but other time units, such as mini-slot, in which a A mini-slot contains fewer symbols than a slot. A slot can be divided into multiple mini-slots, and multiple mini-slots can share one RS.

If the existing RS generation formula in LTE is directly applied to 5G, the following problems will occur: the RS sequences in a slot are the same, which will affect interference randomization.

To sum up, in the current 5G communication, there is no method for generating RS sequences.

SUMMARY OF THE INVENTION

The present application provides a method for generating and receiving an RS, a terminal, and a base station, so as to provide a method for generating an RS sequence suitable for a 5G communication system.

In a first aspect, the present application provides a method for generating an RS, the method comprising:

The terminal determines a reference signal sequence initialization value according to a first parameter set, where the first parameter set includes a number of a time unit, and the number of symbols included in the time unit is less than the number of symbols included in a slot;

The terminal generates an RS sequence according to the reference signal sequence initialization value.

In this embodiment of the present application, the terminal may determine the reference signal sequence initialization value according to the first parameter set, and generate the RS sequence according to the reference signal sequence initialization value. The generation of sequences and the generation of other RS sequences, wherein the parameters included in the first parameter set may refer to the parameters used in the existing corresponding RS sequence generation formulas. For a parameter set, reference may be made to the parameter set in the formula used in the generation of the CSI-RS sequence in LTE, but different from the parameter set used by LTE to generate the CSI-RS sequence, the first parameter set used in the embodiments of the present application The parameter set contains the time number, and the number of symbols contained in the time unit is less than the number of symbols contained in a slot, and the time unit used to generate the CSI-RS sequence in the current LTE is the slot itself. In communication or future communication methods after 5G, the time unit no longer uses a slot, but a time unit with fewer symbols than the number of symbols contained in the slot. Therefore, in order to adapt to a communication mode and be able to correctly generate the RS sequence, this application When generating the RS sequence in the embodiment, the RS sequence is generated in the time unit under the communication standard, so it can be ensured that the RS sequence can be correctly generated under the communication standard.

With reference to the first aspect, in a first possible implementation manner of the first aspect, the number of the time unit is determined according to the number of a time unit including the time domain position of the RS, or, according to the time domain position of the same RS. At least two time unit numbers are determined.

In a communication system, an RS time domain location may be exclusively occupied by one time unit, or may be shared by multiple time units. When each time unit independently corresponds to an RS time domain location, in the embodiment of the present application The time unit number in the first parameter set is equal to the number of the time unit containing the RS time domain position; when multiple time units (at least two) share one RS time domain position, the time unit number in the first parameter set can be Determined according to a plurality of time unit numbers.

With reference to the first possible implementation manner of the first aspect, in a second possible implementation manner of the first aspect, the number of the time unit is determined according to the number of at least two time units that share the same RS time domain location, including : the number of the time unit is equal to the smallest time unit number among the at least two time unit numbers, or the number of the time unit is equal to the largest time unit number among the at least two time unit numbers.

When there are multiple time units sharing the same RS time domain location, there are many methods for determining the time unit number in the first parameter set. Represents the number of the time unit in the first parameter set in the embodiment of the present application, then _ns =min(mini-slot#), where mini-slot# represents the number of all time units that share the same RS time domain position. Set, either _ns =max(mini-slot#), or _ns =min(mini-slot#odd+1, mini-slot#even), or _ns =max(mini- slot#odd+1, mini-slot#even), or _ns =min(mini-slot#odd, mini-slot#even+1), or _ns =max(mini-slot# odd+1, mini-slot#even+1), or _ns =min(mini-slot#odd-1, mini-slot#even), or _ns =max(mini-slot# odd-1, mini-slot#even), where mini-slot#odd represents the odd-numbered set of time units, and mini-slot#odd+1 represents the The odd-numbered number is incremented by 1, similarly, mini-slot#even represents the even-numbered set of time units, and mini-slot#even+1 represents the even number of each time unit in the even-numbered set of time units is incremented by 1, For example, taking the formula of n _s =min(mini-slot#odd+1,mini-slot#even) as an example, it is assumed that the time units currently sharing the same RS time domain location are time unit 0, time unit 1, time unit Unit 2 and time unit 3, then mini-slot#odd={1,3}, mini-slot#even={0,2}, thus, n _s =min(2,4,0,2)=0, For other formulas, the calculation methods are similar, and will not be repeated here. In addition, the method for obtaining the event unit number in the first parameter set according to the number of multiple time units sharing the same RS time domain position in the embodiment of the present application is not limited to The above methods are only used as examples, and any method that can obtain the time unit number in the first parameter set according to the number of multiple time units sharing the same RS time domain position can be used in this embodiment of the present application.

With reference to the first aspect, in a third possible implementation manner of the first aspect, the terminal receives signaling from the base station, where the signaling includes information used to indicate the number _ns of the time unit.

In this way, the terminal directly receives the signaling sent by the base station, where the signaling includes the time unit number in the first parameter set used by the terminal, where the signaling may be Radio Resource Control (RRC), Downlink Control Information (Downlink Control Information, DCI) signaling configuration. For example, the signaling carries a parameter RSgeneratorSlotnumber and a specific value corresponding to the parameter. The value is used to indicate the number of the time unit. For example, the value range of the value is any integer from 0 to 59, and 59 is an example, indicating that LTE The slot numbers are 0 to 19 (in a radio frame). If a slot contains 3 time units, there are 60 time units in total. If the base station indicates a specific number through signaling, such as RSgeneratorSlotnumber=20, then the first Time unit number = 20 in a parameter set. Therefore, after the base station sends the signaling, the terminal knows what the value of _ns used for RS generation on a certain mini-slot is.

With reference to the first possible implementation manner of the first aspect or the second possible implementation manner of the first aspect, in a fourth possible implementation manner of the first aspect, the terminal receives signaling from a base station, the The signaling includes information indicating at least two time unit numbers that share the same RS time domain location.

In this way, the terminal can know which time units share the same RS time domain position according to the received signaling, and then determine the number of the time unit in the first parameter set according to the number of these time units. The signaling carries the number of the time unit, such as (0, 1, 2, 3), after receiving the signaling, the terminal obtains the number of the time unit 0, 1, 2, 3 from it, and then obtains the The parameter value of the number of the time unit in the first parameter set, and the specific calculation method, refer to the above description, which will not be repeated here.

With reference to the first aspect, in a fifth possible implementation manner of the first aspect, the first parameter set further includes the number of time units sharing the RS sequence in one or more time slots.

In a second aspect, an embodiment of the present application provides a terminal, where the terminal includes a processor for:

determining a reference signal sequence initialization value according to a first parameter set, where the first parameter set includes a number of a time unit, and the number of symbols included in the time unit is less than the number of symbols included in a slot;

An RS sequence is generated according to the reference signal sequence initialization value.

With reference to the second aspect, in a first possible implementation manner of the second aspect, the number of the time unit is determined according to the number of a time unit including the RS time domain position, or, according to the same RS time domain position. At least two time unit numbers are determined.

With reference to the first possible implementation manner of the second aspect, in the second possible implementation manner of the second aspect, the number of the time unit is determined according to the number of at least two time units that share the same RS time domain location, including :

The number of the time unit is equal to the smallest time unit number among the at least two time unit numbers, or the number of the time unit is equal to the largest time unit number among the at least two time unit numbers.

With reference to the second aspect, in a third possible implementation manner of the second aspect, the terminal further includes a transceiver, configured to: receive signaling from the base station, where the signaling includes a signal for indicating the time Information about the number of the unit.

With reference to the first possible implementation manner of the second aspect or the second possible implementation manner of the second aspect, in a fourth possible implementation manner of the second aspect, the terminal further includes a transceiver for: Receive signaling from a base station, the signaling including information indicating at least two time unit numbers that share the same RS time domain location.

With reference to the second aspect, in a fifth possible implementation manner of the second aspect, the first parameter set further includes the number of time units sharing the RS sequence in one or more time slots.

In a possible design, the terminal provided by the present application may include a module corresponding to the behavior of the terminal station in the method design of the above-mentioned first aspect. The modules may be software and/or hardware.

In a third aspect, an embodiment of the present application provides a method for receiving a reference signal RS, the method comprising:

The terminal receives signaling from the base station, the signaling is used to indicate the RS time domain position used by one or at least two time units, and the number of symbols in the time unit is less than the number of symbols in a slot;

The terminal receives the RS from the base station according to the signaling.

In this way, the terminal can receive signaling from the base station, so as to know the specific symbol position to which the RS is mapped according to the signaling, and receive the RS from the obtained symbol position. Thus, the RS is correctly received from the base station.

As an alternative solution, the symbol position of the RS may also be received by multiple time units that are pre-defined by the protocol to exclusively or share the same time-domain position of the RS, so that the terminal can receive the RS from the symbol position predefined by the protocol.

With reference to the third aspect, in a first possible implementation manner of the third aspect, the signaling is used to indicate the RS time domain position used by one or at least two time units, including:

The signaling includes the information of the symbol K, or, includes the information of the time unit L and the information of the symbol P on the time unit L;

Wherein, the information of the symbol K is the information of the symbol corresponding to the RS time domain position shared by the continuous or discontinuous N time units, and the time unit L is the continuous or discontinuous RS time domain position that shares the same RS time domain position. In the Lth time unit in the N time units, the symbol P is the Pth symbol in the Lth time unit, K is an integer, N is a positive integer, L is a positive integer not greater than N, and P is not more than the number of symbols contained in the time unit.

In one possible design, consecutive or non-consecutive N time units may share the RS sequence. The value of N may be predefined in the protocol, or the signaling sent by the base station to the terminal may include information of N, such as the value indicating the value of N.

In a possible design, the terminal can obtain the channel information to be measured according to the received RS sequence and the locally generated RS sequence.

In a fourth aspect, an embodiment of the present application provides a terminal, including a processor configured to receive signaling from a base station, where the signaling is used to indicate an RS time domain position used by one or at least two time units, the time The number of symbols in the unit is less than the number of symbols in a slot;

a transceiver for receiving an RS from the base station according to the signaling.

With reference to the fourth aspect, in a first possible implementation manner of the fourth aspect, the signaling is used to indicate the RS time domain position used by one or at least two time units, including: the signaling includes a symbol K information, or, including the information of the time unit L and the information of the symbol P on the time unit L;

Wherein, the information of the symbol K is the information of the symbol corresponding to the RS time domain position shared by the continuous or discontinuous N time units, and the time unit L is the continuous or discontinuous RS time domain position that shares the same RS time domain position. In the Lth time unit in the N time units, the symbol P is the Pth symbol in the Lth time unit, K is an integer, N is a positive integer, L is a positive integer not greater than N, and P is not more than the number of symbols contained in the time unit.

In a possible design, the terminal provided by the present application may include a module corresponding to the behavior of the terminal station in the method design of the above-mentioned third aspect. The modules may be software and/or hardware.

In a fifth aspect, an embodiment of the present application provides a method for sending a reference signal RS, the method comprising:

The base station determines a reference signal sequence initialization value according to a first parameter set, where the first parameter set includes a time unit number, and the number of symbols included in the time unit is less than the number of symbols included in a slot;

The base station generates an RS sequence according to the reference signal sequence initialization value.

In a possible design, after the base station generates the RS sequence, the base station generates the reference signal according to the RS sequence, for example, the reference signal sequence is subjected to operations such as mapping to generate the reference signal, and sends the generated reference signal to the terminal.

With reference to the fifth aspect, in a first possible implementation manner of the fifth aspect, the number of the time unit is determined according to the number of a time unit including the time domain position of the RS, or, according to the time domain position of the same RS. At least two time unit numbers are determined.

With reference to the first possible implementation manner of the fifth aspect, in a second possible implementation manner of the fifth aspect, the number of the time unit is determined according to the number of at least two time units that share the same RS time domain location, including :

The number of the time unit is equal to the smallest time unit number among the at least two time unit numbers, or the number of the time unit is equal to the largest time unit number among the at least two time unit numbers.

With reference to the fifth aspect, in a third possible implementation manner of the fifth aspect, the first parameter set further includes the number of time units sharing the RS sequence in one or more time slots.

In a sixth aspect, an embodiment of the present application provides a base station, where the base station includes:

The processor is configured to determine a reference signal sequence initialization value according to a first parameter set, where the first parameter set includes a time unit number, and the number of symbols included in the time unit is less than the number of symbols included in a slot. number;

An RS sequence is generated according to the reference signal sequence initialization value.

With reference to the sixth aspect, in a first possible implementation manner of the sixth aspect, the number of the time unit is determined according to the number of a time unit including the RS time domain position, or, according to the same RS time domain position. At least two time unit numbers are determined.

With reference to the first possible implementation manner of the sixth aspect, in the second possible implementation manner of the sixth aspect, the number of the time unit is determined according to the number of at least two time units that share the same RS time domain location, including :

The number of the time unit is equal to the smallest time unit number among the at least two time unit numbers, or the number of the time unit is equal to the largest time unit number among the at least two time unit numbers.

With reference to the sixth aspect, in a third possible implementation manner of the sixth aspect, the first parameter set further includes the number of time units sharing the RS sequence in one or more time slots.

In a possible design, the terminal provided by the present application may include a module corresponding to the behavior of the terminal station in the method design of the fifth aspect described above. The modules may be software and/or hardware.

In a seventh aspect, an embodiment of the present application provides a method for generating a reference signal RS, the method comprising:

The first device determines a reference signal sequence initialization value according to a second parameter set, wherein the second parameter set includes a first parameter, and the first parameter is a parameter related to the number of the time unit, the number of the time unit related to the type of the time unit; or, the second parameter set includes a second parameter and a third parameter, the second parameter is a parameter related to the type of the time unit, and the third parameter is related to the time unit The number-related parameters of ; wherein, one time unit contains one or more symbols, and different time unit types contain different numbers of symbols;

The first device generates an RS sequence according to the reference signal sequence initialization value.

In this embodiment of the present application, the first device may determine the reference signal sequence initialization value according to the second parameter set, and generate the RS sequence according to the reference signal sequence initialization value, where the second parameter set includes the first parameter, or includes the second parameter and the first parameter. Three parameters, wherein the first parameter is a parameter related to the number of the time unit, the second parameter is a parameter related to the type of the time unit, and the third parameter is a parameter related to the number of the time unit, so that the number of the time unit can be based on the number of the time unit. Or the RS sequence is obtained based on the type of the time unit and the number of the time unit.

With reference to the seventh aspect, in a first possible implementation manner of the seventh aspect, the number of the time unit is related to the type of the time unit, including:

The first device determines the number of the time unit according to the type of the time unit.

The type of the time unit is determined according to the number of symbols contained in the time unit. For example, the time unit contains 7 symbols or 14 symbols, then the time unit containing 7 symbols is one type, and the time unit containing 14 symbols is a type.

With reference to the first possible implementation manner of the seventh aspect, in the second possible implementation manner of the seventh aspect, the first device determines the number of the time unit according to the type of the time unit, including:

The first device determines the number of the time unit according to the number of the reference time unit corresponding to the time unit;

The type of the reference time unit is a signal-configured or predefined time unit type, and the reference time unit is a time unit corresponding to the type of the reference time unit.

The reference time unit is a time unit including a specific number of symbols, for example, a time unit including 7 symbols is used as the reference time.

In conjunction with the second possible implementation manner of the seventh aspect, in the third possible implementation manner of the seventh aspect, determining the number of the time unit according to the number of the reference time unit corresponding to the time unit, including:

The numbering of the time unit is the Qth number of the reference time unit corresponding to the time unit;

Q is a positive integer, and Q is configured or predefined on the network side.

In conjunction with the second possible implementation manner of the seventh aspect, in the fourth possible implementation manner of the seventh aspect, determining the number of the time unit according to the number of the reference time unit corresponding to the time unit includes:

The time unit corresponds to one or more subunits, each subunit corresponds to a reference time unit, and each subunit has the number of the corresponding reference time unit.

In this way, a time unit can be divided into a plurality of subunits according to the reference unit, and the number of symbols contained in each subunit is the same as the number of symbols of a reference time unit, so a time unit can correspond to multiple numbers, and each number represents the time The number of a subunit of the unit.

In conjunction with the seventh aspect, in a fifth possible implementation manner of the seventh aspect, the third parameter is a parameter related to the number of the time unit, including:

The third parameter is the number of the time unit, and the number of the time unit is sequentially numbered with natural numbers, or,

The third parameter is determined according to the number of the time unit, the number of symbols corresponding to the type of the time unit and the number of symbols corresponding to the type of the reference time unit, and the number of the time unit is determined according to the number of symbols corresponding to the type of the time unit And the numbering interval is determined, and the numbering interval is determined according to the type of the time unit and the type of the reference time unit, and the type of the reference time unit is a network side configuration or a predefined time unit type;

The second parameter is a parameter related to the type of time unit, including:

The first device determines the second parameter according to the type of the time unit.

With reference to the seventh aspect or any one of the first possible implementation manner of the seventh aspect to the fifth possible implementation manner of the seventh aspect, in the sixth possible implementation manner of the seventh aspect, the The first device is a network-side device or a terminal or a relay.

In an eighth aspect, an embodiment of the present application provides a device, where the device may be a terminal or a base station, including:

a processor, configured to determine a reference signal sequence initialization value according to a second parameter set, wherein the second parameter set includes a first parameter, and the first parameter is a parameter related to the number of the time unit, the time unit The number of the time unit is related to the type of the time unit; or, the second parameter set includes a second parameter and a third parameter, the second parameter is a parameter related to the type of the time unit, and the third parameter is related to Parameters related to the number of the time unit; wherein, one time unit contains one or more symbols, and different time unit types contain different numbers of symbols;

An RS sequence is generated according to the reference signal sequence initialization value.

With reference to the eighth aspect, in a first possible implementation manner of the eighth aspect, the processor is specifically configured to:

The number of the time unit is determined according to the type of the time unit.

With reference to the first possible implementation manner of the eighth aspect, in the second possible implementation manner of the eighth aspect, the processor is specifically configured to:

Determine the number of the time unit according to the number of the reference time unit corresponding to the time unit;

The type of the reference time unit is a signal-configured or predefined time unit type, and the reference time unit is a time unit corresponding to the type of the reference time unit.

In conjunction with the second possible implementation manner of the eighth aspect, in the third possible implementation manner of the eighth aspect, determining the number of the time unit according to the number of the reference time unit corresponding to the time unit, including:

The numbering of the time unit is the Qth number of the reference time unit corresponding to the time unit;

Q is a positive integer, and Q is configured or predefined on the network side.

In conjunction with the second possible implementation manner of the eighth aspect, in the fourth possible implementation manner of the eighth aspect, determining the number of the time unit according to the number of the reference time unit corresponding to the time unit includes:

The time unit corresponds to one or more subunits, each subunit corresponds to a reference time unit, and each subunit has the number of the corresponding reference time unit.

With reference to the eighth aspect, in a fifth possible implementation manner of the eighth aspect, the third parameter is a parameter related to the number of the time unit, including:

The third parameter is the number of the time unit, and the number of the time unit is sequentially numbered with natural numbers, or,

The third parameter is determined according to the number of the time unit, the number of symbols corresponding to the type of the time unit and the number of symbols corresponding to the type of the reference time unit, and the number of the time unit is determined according to the number of symbols corresponding to the type of the time unit And the numbering interval is determined, and the numbering interval is determined according to the type of the time unit and the type of the reference time unit, and the type of the reference time unit is a network side configuration or a predefined time unit type;

The processor is specifically configured to: determine the second parameter according to the type of the time unit.

With reference to the eighth aspect or any one of the first possible implementation manner of the eighth aspect to the fifth possible implementation manner of the eighth aspect, in the sixth possible implementation manner of the eighth aspect, the The device is a network-side device or terminal or relay.

In a possible design, the first device provided by the present application may include a module corresponding to the behavior of the terminal station in the method design of the above-mentioned seventh aspect. The modules may be software and/or hardware.

In a ninth aspect, an embodiment of the present application provides a method for generating a reference signal RS, the method comprising:

The first device determines the reference signal sequence initialization value according to the type of the time unit, wherein the number of symbols included in different types of time units is different, and the number of symbols included in the time unit is one or more;

The first device generates an RS sequence according to the reference signal sequence initialization value.

With reference to the ninth aspect, in a first possible implementation manner of the ninth aspect, the first device determines the reference signal sequence initialization value according to the type of the time unit, including:

The first device determines the number of the time unit according to the type of the time unit;

The first device determines the reference signal sequence initialization value according to the number of the time unit; or the first device determines the reference signal sequence initialization value according to the type of the time unit and the number of the time unit.

With reference to the first possible implementation manner of the ninth aspect, in the second possible implementation manner of the ninth aspect, the first device determines the number of the time unit according to the type of the time unit, including:

The first device determines the number of the time unit in the radio frame according to the number of symbols corresponding to the type of the time unit.

With reference to the first possible implementation manner of the ninth aspect, in a third possible implementation manner of the ninth aspect, the first device determines the number of the time unit according to the type of the time unit, including:

The first device determines the number of the time unit in the radio frame according to the number of symbols and the numbering interval corresponding to the type of the time unit;

The numbering interval is determined by the first device according to the number of symbols corresponding to the type of the time unit and the number of symbols corresponding to the type of the reference time unit, and the type of the reference time unit is configured or predefined on the base station side.

In conjunction with the second possible implementation manner or the third possible implementation manner of the ninth aspect, in the fourth possible implementation manner of the ninth aspect, the first device is based on the type of the time unit and the number of the time unit. , determine the initial value of the reference signal sequence, including:

The first device determines the third parameter according to the number of the time unit, or the first device determines the third parameter according to the number of the time unit, the number of symbols corresponding to the type of the time unit, and the number of symbols corresponding to the type of the reference time unit. Three parameters, the first parameter is a parameter related to the number of the time unit, and the type of the reference time unit is configured or predefined on the base station side;

The first device determines the second parameter according to the type of the time unit;

The first device determines a reference signal sequence initialization value according to the second parameter and the third parameter.

With reference to the first possible implementation manner of the ninth aspect, in a fifth possible implementation manner of the ninth aspect, the first device determines the number of the time unit according to the type of the time unit, including:

The first device determines the number of the time unit in the radio frame according to the number of symbols corresponding to the type of the time unit and the number of symbols corresponding to the type of the reference time unit;

The type of the reference time unit is configured or predefined on the base station side.

With reference to the fifth possible implementation manner of the ninth aspect, in the sixth possible implementation manner of the ninth aspect, the time unit corresponds to one or more subunits, each subunit corresponds to a reference time unit, and each subunit corresponds to a reference time unit. Has the number of the corresponding reference time unit.

With reference to the fifth possible implementation manner or the sixth possible implementation manner of the ninth aspect, in the seventh possible implementation manner of the ninth aspect, the first device determines the reference signal sequence according to the number of the time unit Initialization values, including:

The first device determines a first parameter according to the number of the time unit, where the first parameter is a parameter related to the number of the time unit;

The first device determines a reference signal sequence initialization value according to the first parameter.

In combination with the ninth aspect or in combination with the first possible implementation manner to the seventh possible implementation manner of the ninth aspect, in the eighth possible implementation manner of the ninth aspect, the first device is a base station or a terminal or relay.

In a tenth aspect, an embodiment of the present application provides a device, which may be a terminal, a base station, or a relay, including:

a processor, configured to determine a reference signal sequence initialization value according to the type of the time unit, wherein the number of symbols included in different types of time units is different, and the number of symbols included in the time unit is one or more; and The RS sequence is generated with reference to the signal sequence initialization value.

With reference to the tenth aspect, in a first possible implementation manner of the tenth aspect, the processor is specifically configured to:

Determine the number of the time unit according to the type of the time unit;

Determine the reference signal sequence initialization value according to the number of the time unit; or, the first device determines the reference signal sequence initialization value according to the type of the time unit and the number of the time unit.

With reference to the first possible implementation manner of the tenth aspect, in the second possible implementation manner of the tenth aspect, the processor is specifically configured to: determine the wireless The number of the time unit in the frame.

With reference to the first possible implementation manner of the tenth aspect, in the third possible implementation manner of the tenth aspect, the processor is specifically configured to: the number of symbols and the numbering interval corresponding to the type of the time unit , determine the number of the time unit in the radio frame;

The numbering interval is determined by the first device according to the number of symbols corresponding to the type of the time unit and the number of symbols corresponding to the type of the reference time unit, and the type of the reference time unit is configured or predefined on the base station side.

With reference to the second possible implementation manner or the third possible implementation manner of the tenth aspect, in a fourth possible implementation manner of the tenth aspect, the processor is specifically used for:

The third parameter is determined according to the number of the time unit, or the first device determines the third parameter according to the number of the time unit, the number of symbols corresponding to the type of the time unit, and the number of symbols corresponding to the type of the reference time unit, the The first parameter is a parameter related to the number of the time unit, and the type of the reference time unit is configured or predefined on the base station side;

determining a second parameter according to the type of the time unit;

A reference signal sequence initialization value is determined according to the second parameter and the third parameter.

With reference to the first possible implementation manner of the tenth aspect, in a fifth possible implementation manner of the tenth aspect, the processor is specifically configured to: the number of symbols corresponding to the type of the time unit and the reference time The number of symbols corresponding to the type of the unit, to determine the number of the time unit in the radio frame;

The type of the reference time unit is configured or predefined on the base station side.

With reference to the fifth possible implementation manner of the tenth aspect, in the sixth possible implementation manner of the tenth aspect, the time unit corresponds to one or more subunits, each subunit corresponds to a reference time unit, and each subunit corresponds to a reference time unit. Has the number of the corresponding reference time unit.

With reference to the fifth possible implementation manner or the sixth possible implementation manner of the tenth aspect, in the seventh possible implementation manner of the tenth aspect, the processor is specifically configured to: according to the number of the time unit, determining a first parameter, the first parameter being a parameter related to the number of the time unit;

According to the first parameter, a reference signal sequence initialization value is determined.

In combination with the tenth aspect or in combination with the first possible implementation manner to the seventh possible implementation manner of the tenth aspect, in the eighth possible implementation manner of the tenth aspect, the device is a base station or a terminal or a relay .

In a possible design, the device provided by the present application may include a module corresponding to the behavior of the terminal station in the method design of the above-mentioned ninth aspect. The modules may be software and/or hardware.

In an eleventh aspect, the embodiments of the present application provide a computer storage medium for storing computer software instructions used by the base station, terminal, or device provided in the above-mentioned aspects, including the programs designed for executing the above-mentioned aspects.

In a twelfth aspect, the present application also provides a computer program product comprising instructions, which, when executed on a computer, cause the computer to perform the methods described in the above aspects.

Description of drawings

1 is a flowchart of an RS generation method provided by an embodiment of the present application;

Fig. 2 is the mini-slot schematic diagram that this application provides;

3 is a flowchart of an RS generation method provided by an embodiment of the present application;

4 is a flowchart of a method for receiving an RS provided by an embodiment of the present application;

5 is a flowchart of an RS generation method provided by an embodiment of the present application;

Fig. 6 provides the first kind of slot numbering mode of the embodiment of this application;

Fig. 7 provides the second kind of slot numbering method of the embodiment of this application;

FIG. 8 provides a third slot numbering method in an embodiment of the present application;

FIG. 9 provides the fourth slot numbering method in the embodiment of the present application;

FIG. 10 is a schematic diagram of frequency domain resource numbering provided by an embodiment of the present application;

FIG. 11 is a schematic diagram of a base station provided by an embodiment of the present application;

FIG. 12 is a schematic diagram of a terminal provided by an embodiment of the present application;

FIG. 13 is a schematic diagram of an apparatus provided by an embodiment of the present application.

Detailed ways

In order to make the objectives, technical solutions and advantages of the present application clearer, the present application will be further described in detail below with reference to the accompanying drawings.

The embodiments of the present application may be applicable to 5G (fifth generation mobile communication system) systems, such as access networks using new radio access technology (New RAT); CRAN (Cloud Radio Access Network, cloud radio access network) ) and other communication systems, or can also be used in future communication systems above 5G. Hereinafter, some terms in the present application will be explained so as to facilitate the understanding of those skilled in the art.

1) A terminal, also known as User Equipment (UE), is a device that provides voice and/or data connectivity to a user, for example, a handheld device with a wireless connection function, a vehicle-mounted device, and the like. Common terminals include, for example, mobile phones, tablet computers, notebook computers, palmtop computers, mobile internet devices (mobile internet devices, MIDs), wearable devices, such as smart watches, smart bracelets, and pedometers.

2) A base station, also known as a radio access network (Radio Access Network, RAN) device is a device that accesses a terminal to a wireless network, including but not limited to: evolved Node B (evolved Node B, eNB), Radio network controller (radio network controller, RNC), Node B (Node B, NB), base station controller (Base Station Controller, BSC), base transceiver station (Base Transceiver Station, BTS), home base station (for example, Homeevolved NodeB, Or Home Node B, HNB), baseband unit (BaseBand Unit, BBU), base station (g NodeB, gNB), transmission point (Transmitting and receiving point, TRP), transmitting point (Transmitting point, TP). In addition, a Wifi access point (Access Point, AP) and the like may also be included.

In the 4G (fourth generation mobile communication system) communication system, the RS sequence is generated according to the slot number, for example, for a reference signal used to indicate downlink channel state information, such as a downlink channel state information reference signal (channel state information reference signal) , the generation formula of CSI-RS) is:

为参考信号序列值，即RS序列，n_s为无线帧的slot编号，m为参考信号映射的资源块(Resource Block，RB)序号，l为符号编号，

为下行最大资源块(Resource Block，RB)数，c()为协议定义的参考信号初始化函数(例如为伪随机数生成函数或者是非伪随机数生成函数等)，c_init为c()函数的初始化值，称为参考信号初始化值，并且：in,

is the reference signal sequence value, that is, the RS sequence, _ns is the slot number of the radio frame, m is the resource block (Resource Block, RB) sequence number mapped by the reference signal, l is the symbol number,

is the maximum number of downlink resource blocks (RBs), c() is the reference signal initialization function defined by the protocol (for example, a pseudo-random number generation function or a non-pseudo-random number generation function, etc.), c _init is the c() function The initialization value, called the reference signal initialization value, and:

Among them, n' _s is a reference related to the slot number, which is calculated according to the slot number. Specifically,

Wherein, for frame structure type 3 (a secondary cell using a normal cyclic prefix in licensed-assisted access (LAA)), the above value is used for n _'s , otherwise the following value is used.

为基站通过高层信令配置的值，默认值为小区标识(ID)。And, N _CP is a cyclic prefix (cylic prefix, CP) identifier,

The value configured by the base station through higher layer signaling, the default value is the cell identification (ID).

也是根据slot编号得到的，但是在5G中，对于时间单元，已经不再使用slot，而是使用包含比slot更少的符号数的时间单元，具体可称之为mini-slot，例如，一个mini-slot包含的符号数为2个、4个等，而一个slot包含的符号数为7个或14个，因此mini-slot包含的符号数是是少于slot包含的符号数，并且，在一个无线帧中可以只包含一种类型的mini-slot，也可以是多种类型的mini-slot的混合。It can be seen from the above formula that c _init is obtained according to n _s , that is, the slot number, so that the RS sequence

It is also obtained according to the slot number, but in 5G, for the time unit, the slot is no longer used, but the time unit containing fewer symbols than the slot is used, which can be called mini-slot, for example, a mini-slot -The number of symbols contained in a slot is 2, 4, etc., while the number of symbols contained in a slot is 7 or 14, so the number of symbols contained in a mini-slot is less than the number of symbols contained in a slot, and, in a A radio frame may contain only one type of mini-slot, or may be a mixture of multiple types of mini-slots.

For another example, for a reference signal used to indicate a downlink cell, for example, the generation formula of a downlink cell reference signal (cell-specific reference signal, CRS) is:

Wherein, for frame structure type 3 (a secondary cell using a normal cyclic prefix in licensed-assisted access (LAA)), the above value is used for n _'s , otherwise the following value is used.

为参考信号序列值，即RS序列，n_s为无线帧的slot编号，m为参考信号映射的资源块(Resource Block，RB时)序号，l为符号编号，

为下行RB数，c()为协议定义的参考信号初始化函数(例如为伪随机数生成函数或者是非伪随机数生成函数等)，c_init为c()函数的初始化值，称为参考信号初始化值，N_CP为CP标识，

表示小区标识。in,

is the reference signal sequence value, that is, the RS sequence, n _s is the slot number of the radio frame, m is the sequence number of the resource block (Resource Block, RB time) mapped by the reference signal, l is the symbol number,

is the downlink RB number, c() is the reference signal initialization function defined by the protocol (for example, a pseudo-random number generation function or a non-pseudo-random number generation function, etc.), and c _init is the initialization value of the c() function, which is called reference signal initialization value, N _CP is the CP identifier,

Indicates the cell ID.

也是根据slot编号得到的。It can be seen from the above formula that c _init is obtained according to n _s , that is, the slot number, so that the RS sequence

It is also obtained according to the slot number.

For another example, for the reference signal used for downlink demodulation, for example, the generation formula of the downlink demodulation reference signal (demodulation reference signal, DMRS) is:

For port number 5:

为参考信号序列值，即RS序列，n_s为无线帧的slot编号，m为参考信号映射的，l为符号编号，

为根据下行共享物理信道(physical downlink sharedchannel，PDSCH)传输而确定的RB块所对应的带宽，c()为协议定义的参考信号初始化函数(例如为伪随机数生成函数或者是非伪随机数生成函数等)，c_init为c()函数的初始化值，称为参考信号初始化值，

为小区标识。in,

is the reference signal sequence value, that is, the RS sequence, _ns is the slot number of the radio frame, m is the reference signal mapping, l is the symbol number,

For the bandwidth corresponding to the RB block determined according to the physical downlink shared channel (PDSCH) transmission, c() is the reference signal initialization function defined by the protocol (for example, a pseudo-random number generation function or a non-pseudo-random number generation function). etc.), c _init is the initialization value of the c() function, called the reference signal initialization value,

is the cell ID.

When the port numbers are 7, 8, ... v+6, (where v is the number of layers of signal transmission), the RS sequence r(m) is determined by the following formula:

and,

为下行最大的RB数。伪随机序列c(i)的生成器由c_init初始化。其中，n_SCID为加扰标识。当高层配置或者使用了DCI格式1A，2B，2C时，

为配置的DMRS标识

否则，

为小区标识。

is the maximum number of downlink RBs. The generator of the pseudorandom sequence c(i) is initialized by _cinit . Wherein, n _SCID is a scrambling identifier. When the upper layer is configured or DCI format 1A, 2B, 2C is used,

for the configured DMRS identifier

otherwise,

is the cell ID.

也是根据slot编号得到的。特别的，DMRS的参考信号初始化值的计算公式中，slot编号除以2并向下取整，目的是为了在相邻slot上生成一样的RS序列，以便使用正交覆盖码(Orthogonal Cover Code，OCC)使相邻slot上的RS保持正交性。It can be seen from the above formula that c _init is obtained according to n _s , that is, the slot number, so that the RS sequence

It is also obtained according to the slot number. In particular, in the calculation formula of the reference signal initialization value of DMRS, the slot number is divided by 2 and rounded down, the purpose is to generate the same RS sequence on adjacent slots, so as to use the orthogonal cover code (Orthogonal Cover Code, OCC) keeps the RSs on adjacent slots orthogonal.

For another example, the uplink RS sequence is generated based on the ZC sequence (Zadoff-Chu sequence), and the generation of the ZC sequence does not depend on the slot number in the LTE protocol. However, when the uplink RS generated based on the ZC sequence performs frequency hopping or mapping, the frequency hopping or mapping is related to the slot number, and the generation formula is as follows:

u=(f _gh (n _s )+f _ss )mod30,

Among them, u represents the sequence group number, _fgh (n _s ) represents the group frequency hopping pattern, and f _ss represents the sequence shift pattern.

and,

Among them, c() represents a pseudo-random sequence, i is an integer value from 0 to 7, gh represents group hopping, and _ns represents the number of the slot.

To sum up, it can be seen that the RS generation formula in the prior art adopts the RS formula defined in the LTE protocol, whether it is the downlink CSI-RS generation formula, the DMRS generation formula, the CRS generation formula, etc., or the uplink sequence mapping, all are Takes the slot number as one of the arguments.

With the development of communication technology, the slot is currently divided into smaller time units in 5G communication, which are collectively referred to as mini-slot in the embodiments of this application. Since mini-slot is a smaller unit than slot, if the above If the formula for generating RS is used directly without modification, the RS sequences corresponding to multiple mini-slots located in the same slot will be the same, thus affecting the randomization of interference.

To this end, an RS generation method is provided in this embodiment of the present application. As shown in FIG. 1 , the method is executed by the terminal side, and specifically includes:

Step 101, the terminal determines the reference signal sequence initialization value according to the first parameter set, the first parameter set includes the number of the time unit, and the number of symbols included in the time unit is less than the number of symbols included in a slot. number.

Step 102: The terminal generates an RS sequence according to the reference signal sequence initialization value.

n_RNTI，以及还包括时间单元的编号，本申请实施例中仍然以n_s表示，对于其他RS序列的生成公式，则第一参数集相应地为其他参数的集合，但不管是何种公式生成RS，所使用的第一参数集中均包含时间单元的编号这个参数。For the convenience of understanding, the following description is given in conjunction with specific examples. Taking the generation formula of CSI-RS as an example, the first reference set includes:

n _RNTI , and also includes the number of the time unit, which is still represented by n _s in the embodiment of the present application. For the generation formulas of other RS sequences, the first parameter set is correspondingly the set of other parameters, but no matter what formula is used to generate RS, the used first parameter set includes the parameter of the number of the time unit.

Therefore, in the application embodiment, taking the generation formula of CSI-RS as an example, in order to obtain the RS sequence, it is still necessary to obtain the parameter values in the first parameter set by calculation, and then obtain the initialization value of the reference signal sequence. The technical difference is that the method of obtaining the parameters used has changed. For example, taking the parameter number of the time unit as an example, the method of obtaining the parameter is no longer using the number of the slot as the value of the parameter n _s , but according to The number of the time unit is obtained.

For convenience of description, in the embodiments of the present application, mini-slots will be used to represent the time units to which the embodiments of the present application are applicable.

Among them, the reference signal sequence initialization value in the specific implementation mode is the calculation method of c _init appearing in the above formula. Of course, the calculation of c _{init union} is not limited to the above several forms, and other calculation methods about c _init also include within the scope of protection of this application.

The following describes how to determine the number of the time unit in the first parameter set, that is, how to determine the _ns value in each RS sequence generation formula, with reference to the accompanying drawings.

When each mini-slot occupies an RS time domain position, the value of _ns is the number of a mini-slot. The number of the mini-slot can be notified to the terminal by the base station through signaling. For example, the signaling carries a parameter including the number of the mini-slot, and the signaling carries a parameter RSgeneratorSlotnumber and the specific value corresponding to the parameter. This value is used to indicate the number of the time unit. For example, the value range of this value is any integer from 0 to 59. 59 is an example, indicating that the slot number in LTE is 0 to 19 (in a radio frame). If a slot Including 3 time units, there are 60 time units (mini-slot) in total. If the base station indicates a specific number through signaling, such as indicating RSgeneratorSlotnumber=20, then the time unit number in the first parameter set=20, that is, n _s =20.

When multiple mini-slots share the same RS time domain location, the protocol can predefine which mini-slots share an RS time domain location, so that the terminal can use multiple mini-slots that share the same RS time domain location. -The number of the slot is calculated to obtain the value of n _s ; or the number of multiple mini-slots that share a RS time domain location is issued by the base station to the terminal through an order, so that the terminal receives the multiple mini-slot according to the number of slots. The number is calculated to get the value of n _s .

The signaling may be radio resource control (Radio Resource Control, RRC), downlink control information (Downlink Control Information, DCI), MAC control element (Media Access Control control element, MAC CE) signaling, etc. Of course, it can also be other signaling, which is not limited in this embodiment of the present application.

As shown in FIG. 2 , a schematic diagram of a possible time unit (mini-slot) provided by an embodiment of the present application, wherein, the example is that each mini-slot includes 4 symbols, and mini-slot#0 and mini-slot #1 shares an RS time domain location, and mini-slot #2 and mini-slot #3 share an RS time domain location. When the terminal generates an RS sequence, the parameter of the number of the time unit used can be based on the shared RS sequence. The number of the time unit in the time domain location is determined, and the number of the time unit sharing the same RS time domain location can be predefined by the protocol or issued by the base station through signaling, and shared by mini-slot#0 and mini-slot#1 Taking an RS time domain location as an example, mini-slot#0 and mini-slot#1 can be sent by the base station through signaling or predefined by the protocol. When mini-slot#0 and mini-slot#1 are received from the terminal When obtained from the signaling, after the signaling is obtained, the mini-slot #0 and the mini-slot #1 are obtained therefrom, and the parameter (ie, _ns ) of the time unit number in the first parameter set is further obtained through operation.

There are many specific calculation methods, which are not limited in the embodiment of the present application. For example, it may be n _s =min(mini-slot#), where mini-slot# represents the number of all time units that share the same RS time domain position. The formed set is either _ns =max(mini-slot#), or _ns =min(mini-slot#odd+1, mini-slot#even), or _ns =max( mini-slot#odd+1, mini-slot#even), or _ns =min(mini-slot#odd, mini-slot#even+1), or _ns =max(mini- slot#odd+1, mini-slot#even+1), or _ns =min(mini-slot#odd-1, mini-slot#even), or _ns =max(mini- slot#odd-1, mini-slot#even), where mini-slot#odd represents the odd-numbered set of time units, and mini-slot#odd+1 represents each time in the odd-numbered set of time units The odd-numbered unit is incremented by 1. Similarly, mini-slot#even indicates the even-numbered set of time units, and mini-slot#even+1 indicates that the even-numbered unit of each time unit in the even-numbered set of time units is added. 1. For example, taking the formula of n _s =min(mini-slot#odd+1,mini-slot#even) as an example, it is assumed that the time units currently sharing the same RS time domain position have time unit 0 and time unit 1 respectively. , time unit 2, time unit 3, then mini-slot#odd={1,3}, mini-slot#even={0,2}, thus, _ns =min(2,4,0,2)= 0. For other formulas, the calculation methods are similar, and will not be repeated here. Moreover, in this embodiment of the present application, the method for obtaining the event unit number in the first parameter set according to the number of multiple time units sharing the same RS time domain position is not Not limited to the above methods, the above is only for illustration, any method that can obtain the event unit number in the first parameter set according to the number of multiple time units sharing the same RS time domain location can be used in the embodiment of the present application.

In a possible design, considering that the existing protocol uses an orthogonal cover code (OCC) in order to make the RSs on the adjacent slots consistent, when calculating the RS sequence, the formula used also calculates the time The number parameter of the unit is processed accordingly, for example, the number of the time unit is divided by 2 and then rounded down, so as to ensure that two adjacent slots can generate the same RS sequence.

Taking the DMRS generation formula of the existing protocol as an example, it can be seen that the calculation formula for the initialization value of the parameter signal sequence is:

Among them, n _s is divided by 2 and rounded down.

In order to continue the use of the OCC, in this embodiment of the present application, the above formula may be appropriately modified according to the specific situation of the mini-slot sharing the time domain position of the RS.

修改为

同理，如果图2所示的每个mini-slot的长度缩减到2个符号，即8个mini-slot共享2个符号的RS，公式可以修改为

For example, taking the sharing situation shown in FIG. 2 as an example, for the RS of a symbol shared by mini-slot#0 and mini-slot#1 in FIG. 2 and mini-slot#2 and mini-slot#3 If the RS of a shared symbol is the same, the above calculation formula about downlink DMRS can be

change into

Similarly, if the length of each mini-slot shown in Figure 2 is reduced to 2 symbols, that is, 8 mini-slots share the RS of 2 symbols, the formula can be modified as

修改为

其中M等于一个或多个时隙内共享RS序列的时间单元的个数，即M与numerology(用于指示mini-slot的编号)有关。numerology中包含了mini-slot的长度。此方案的前提是沿用了LTE中DMRS的设计思路(相邻slot上的RS一致，并使用OCC)。Therefore, when generating the reference information sequence initialization value in the DMRS generation formula, it can be

change into

M is equal to the number of time units sharing the RS sequence in one or more time slots, that is, M is related to the numerology (used to indicate the number of the mini-slot). The length of the mini-slot is included in the numerology. The premise of this solution is to follow the design idea of DMRS in LTE (RSs on adjacent slots are consistent and OCC is used).

Example: Indicate a 4-symbol mini-slot (for example, the number of symbols in the mini-slot is indicated by signaling, or the number of symbols in the mini-slot can be determined through the numerology), the terminal and the base station can correspond to M=4 and generate a consistent DMRS with demodulated at the UE.

Indicates that the numerology is a 2-symbol mini-slot, and the terminal and the base station can correspond to M=8. That is, the value of M is related to the number of symbols contained in the mini-slot.

Therefore, in the above example, the first parameter set not only includes the number of the time unit, but also includes the number of time units that share the RS sequence in one or more time slots, that is, the above-mentioned M value. Specifically, M is equal to the number of time units sharing the RS sequence. Wherein, when multiple timeslots share the RS sequence, the multiple timeslots may be continuous multiple timeslots, or may be multiple discontinuous timeslots. For example, the consecutive multiple timeslots may be two consecutive timeslots, and the discontinuous multiple timeslots are multiple timeslots with discontinuous numbers. Multiple non-consecutive time slots may also share the RS sequence, for example, time slots 1 and 3 share the RS sequence located on time slot 1 and so on.

Another solution designed for DMRS is not to use OCC, so the RS of adjacent slots does not need to be consistent. The calculation formula of CSI-RS can be used for reference, that is, n _s ' and n _s have a linear relationship, that is, the calculation formula of DMRS can be calculated by:

Change it to:

为基站配置的虚拟小区ID，n_SCID为小区内做多用户时不同用户所使用的加扰ID，只能配置为0、1，in,

The virtual cell ID configured for the base station, n _SCID is the scrambling ID used by different users when there are multiple users in the cell, and can only be configured as 0 and 1.

It should be noted that the above embodiments only take the generation of DMRS as an example for description, and the embodiments of the present application are also applicable to the generation of other RS sequences that need to use OCC or do not use OCC, which is not limited.

The above describes how the terminal side generates the RS sequence, but the base station side may also use the same method to generate the RS sequence, which will be described below.

Referring to FIG. 3 , a schematic diagram of an RS generation method provided by an embodiment of the present application is provided. The method execution body is a base station, including:

Step 301, the base station determines the reference signal sequence initialization value according to a first parameter set, the first parameter set includes a time unit number, and the number of symbols included in the time unit is less than the number of symbols included in a slot. ;

Step 302: The base station generates an RS sequence according to the reference signal sequence initialization value.

Further, the number of the time unit is determined according to the number of one time unit including the time domain position of the RS, or is determined according to the number of at least two time units that share the same RS time domain position.

Further, the number of the time unit is determined according to the number of at least two time units that share the same RS time domain position, including:

The number of the time unit is equal to the smallest time unit number among the at least two time unit numbers, or the number of the time unit is equal to the largest time unit number among the at least two time unit numbers.

Further, the first parameter set further includes the number of time units sharing the RS sequence in one or more time slots.

It can be seen from the above steps that the method for generating the RS sequence on the base station side is the same as that on the terminal side, which will not be repeated here. For details, please refer to the description of the method for generating the RS sequence on the terminal side.

It should be noted that, after generating the RS sequence, the base station side generates the reference signal according to the RS sequence, for example, the reference signal sequence is subjected to operations such as mapping to generate the reference signal, and sends the generated reference signal to the terminal. The terminal can obtain the channel information to be measured according to the received RS sequence and the locally generated RS sequence.

Therefore, for the terminal side, a method for receiving a reference signal RS is also included, as shown in FIG. 4 , including:

Step 401, the terminal receives signaling from the base station, the signaling is used to indicate the RS time domain position used by one or at least two time units, and the number of symbols in the time unit is less than the number of symbols in a slot. .

Step 402: The terminal receives the RS from the base station according to the signaling.

In this way, the terminal can receive signaling from the base station, so as to know the specific symbol position to which the RS is mapped according to the signaling, and receive the RS from the obtained symbol position. Thus, the RS is correctly received from the base station.

Wherein, for the signaling sent by the base station, in a specific embodiment, it can be implemented in a variety of ways. For example, the signaling can include the information of the symbol K, where the information of the symbol K is continuous or discontinuous N time units For the information of the symbols corresponding to the shared RS time domain positions, in a possible design, the RS sequence may be shared by consecutive or non-consecutive N time units. The value of N may be predefined in the protocol, or the signaling sent by the base station to the terminal may include information of N, such as the value indicating the value of N.

For example, the signaling includes a value of K, and the terminal side obtains the number of multiple time units that share the same RS time domain position through protocol pre-defined or the base station through signaling, such as mini-slot# 0, mini-slot#1, mini-slot#2, mini-slot#3, and the value of K is 10 (as an example), the terminal starts from mini-slot#0, mini-slot#1, mini-slot# 2. The first symbol in mini-slot #3 starts, and the 10th symbol position after that is the symbol position where the base station maps the RS sequence, so the terminal can receive the RS sequence on the base station side from this position.

For another example, for the signaling sent by the base station, it may also include the information of the time unit L and the information of the symbol P on the time unit L; wherein, the time unit L is a continuous time unit that shares the same RS time domain position. Or the Lth time unit in the N time units that are not consecutive, the symbol P is the Pth symbol in the Lth time unit, K is an integer, N is a positive integer, and L is not greater than N A positive integer, P is not greater than the number of symbols contained in the time unit.

For example, the signaling indicates that the value of L is 2, and the value of P is 4, indicating that N time units (such as mini-slot#0, mini-slot#1, The fourth symbol position of the second time unit in mini-slot#2, mini-slot#3) is the symbol position where the base station maps the RS sequence, so the terminal receives the RS sequence on the base station side from this position. Wherein, similarly, the value of N may be predefined in the protocol, or the signaling sent by the base station to the terminal may include information of N, such as indicating the value of N.

In a possible design method, a signaling may be separately issued for each mini-slot to indicate the RS time domain location information applicable to the mini-slot.

The form of signaling can be RRC, DCI or MAC CE.

In a possible design, after receiving the RS sequence on the base station side, the terminal can obtain the channel information to be measured according to the received RS sequence and the locally generated RS sequence.

That is, in the embodiment of the present application, the terminal side and the base station side generate the RS sequence in the same way, and the base station also maps the generated RS sequence to a certain symbol position and sends it to the terminal, and the terminal finds the symbol position and receives the base station side. and further obtain the channel information to be measured according to the received RS sequence on the base station side and the locally generated RS sequence.

As an alternative solution, in this embodiment of the present application, the symbol position of the RS can be received by multiple time units that are predefined by the protocol to exclusively or share the same time domain position of the RS, so that the terminal can receive the RS from the symbol position predefined by the protocol.

In the above embodiment, the terminal can determine the reference signal sequence initialization value according to the first parameter set, and generate the RS sequence according to the reference signal sequence initialization value. and the generation of other RS sequences, wherein the parameters included in the first parameter set may refer to the parameters used in the existing corresponding RS sequence generation formulas, for example, for the generation of CSI-RS sequences, the used first parameter For the parameter set, reference may be made to the parameter set in the formula used to generate the CSI-RS sequence in LTE, but different from the parameter set used by LTE to generate the CSI-RS sequence, the first parameter used in the embodiment of the present application The time number is included in the set, and the number of symbols contained in the time unit is less than the number of symbols contained in a slot. At present, the time unit used to generate the CSI-RS sequence in LTE is the slot itself, because in 5G communication Or in the future communication mode after 5G, the time unit will no longer use the slot, but use the time unit with fewer symbols than the number of symbols contained in the slot. Therefore, in order to adapt to a communication mode and be able to correctly generate the RS sequence, this application implements For example, when generating the RS sequence, the RS sequence is generated in the time unit under the communication standard, so it can be ensured that the RS sequence can be correctly generated under the communication standard.

As shown in FIG. 5 , an embodiment of the present application also provides a method for generating a reference signal RS. The method is executed by a network side device (such as a base station), a relay, or a terminal, including:

Step 501: The first device determines the reference signal sequence initialization value according to the second parameter set.

Step 502: The first device generates an RS sequence according to the reference signal sequence initialization value.

The embodiment of the present application is still an improvement based on the formula for generating the RS sequence in the existing protocol, wherein the parameters related to the time unit in the second parameter set can be described in two cases.

Case 1. The second parameter set includes the first parameter

The first parameter is a parameter related to the number of the time unit, and the number of the time unit is related to the type of the time unit. Wherein, one time unit contains one or more symbols, and different time unit types contain different numbers of symbols.

It should be noted that the definition of the time unit in the RS generation method shown in FIG. 5 is different from the definition of the time unit in the RS generation method of FIG. 1 and FIG. 3 . In FIG. 1 and FIG. 3 , the time unit The number of symbols contained is less than the number of symbols contained in the slot, and in the RS generation method shown in Figure 5, the number of symbols contained in the time unit may be equal to the number of symbols in the slot, or may be greater than the number of slot symbols, or less than the number of slot symbols. , for example, in one possible design, the slot contains 7 symbols or contains 14 symbols.

Therefore, the type of the time unit is determined according to the number of symbols contained in the time unit. For example, the time unit contains 7 symbols or 14 symbols, then the time unit containing 7 symbols is one type, and the time unit containing 14 symbols is a type.

Taking the above CSI-RS generation formula as an example, because:

Therefore, n' _s is the first parameter in the second parameter set in this embodiment of the present application, and the parameter is determined according to the number of the time unit, and the number of the time unit is determined according to the type of the time unit.

Case 2. The second parameter set includes the second parameter and the third parameter

The second parameter is a parameter related to the type of the time unit, and the third parameter is a parameter related to the number of the time unit.

Wherein, the third parameter is similar to the first parameter in Case 1, and is a parameter related to the number of the time unit, namely n' _s in the above formula (of course, the above formula is only an example, and is not limited to the above formula).

For the convenience of description, the second parameter can be represented by N _slot . For example, taking the type of time unit including 7 symbols and including 14 symbols as an example, in a possible implementation,

In this embodiment of the present application, the first device may determine the reference signal sequence initialization value according to the second parameter set, and generate the RS sequence according to the reference signal sequence initialization value, where the second parameter set includes the first parameter, or includes the second parameter and the first parameter. Three parameters, wherein the first parameter is a parameter related to the number of the time unit, the second parameter is a parameter related to the type of the time unit, and the third parameter is a parameter related to the number of the time unit, so that the number of the time unit can be based on the number of the time unit. Or the RS sequence is obtained based on the type of the time unit and the number of the time unit.

In this embodiment of the present application, under different numbering manners of time units, corresponding RS sequences are generated in different manners. Therefore, the numbering manners of time units in the embodiments of the present application are first described below.

For convenience of description, in the RS generation method shown in FIG. 5 , the time unit is taken as an example of a slot, and the number of symbols included in one slot is taken as an example of 7 or 14 for description. And, a slot containing 7 symbols is referred to as a reference slot (or referred to as a reference time unit). Of course, a time unit containing other symbols may also be used as a reference slot, which is not limited in this embodiment of the present application. It can be understood that the embodiments of the present invention can also be applied to time units other than slots, for example, a time unit including a time unit with fewer symbols than a slot, such as a mini-slot, will not be repeated here.

Moreover, the type of the reference time unit is a time unit type configured or predefined by the network side.

In this embodiment of the present application, the first device determines the serial number of the time unit according to the type of the time unit.

slot numbering method one

Referring to Figure 6, the first slot numbering method provided by the embodiment of the present application determines the number of the slot in the wireless frame according to the number of symbols corresponding to the type of the slot, or the number of symbols corresponding to the type of the slot, and the number of the slot where the slot is located. The sequence number of the subframe, which determines the number of the slot in the radio frame.

That is, the slots containing 7 symbols and the slots containing 14 symbols are numbered sequentially. Specifically, for the slots containing 7 symbols, the numbers are 0, 1, 2, 3, 4, 5, . . . ..., Similarly, for the slot containing 14 symbols, it is also sequentially numbered 0, 1, 2, 3, 4, 5, ....

For example, a radio frame has 10 subframes, each subframe includes 2 slots, and each slot includes the same symbols (for example, 7 symbols or 14 symbols), then the second subframe on the fifth subframe The number of each slot can be obtained by sequentially numbering from front to back, and its number is 9 (counting from 0), or according to the slot is the second slot of the 5th subframe, so its number = subframe number * subframe The number of slots in the frame + the number of slots in the subframe=4*2+1=9. It can be understood that, the subframe and the radio frame here may have other names, and the relationship between the subframe, the radio frame and the slot may also be other relationships, which will not be repeated here.

slot numbering method 2

Referring to Figure 7, the second slot numbering method provided for the embodiment of the application, the numbering method is to determine the number of the slot according to the number of symbols corresponding to the type of the slot and the number of symbols corresponding to the type of the reference slot; The number of symbols corresponding to the type, the number of symbols corresponding to the type of the reference time unit, and the sequence number of the subframe where the slot is located determines the number of the slot; wherein, the type of the reference slot is configured or predefined on the base station side.

Alternatively, it can also be understood that the number of the time unit is determined according to the number of the reference time unit corresponding to the time unit.

That is, the time unit and the reference time unit are mixed and numbered. For example, for a time unit containing 7 symbols, they are numbered sequentially. For a time unit containing 14 symbols, since there are two subunits, each corresponding to a reference time unit , so it can correspond to two numbers, and one of them can be selected as the number of the time unit, for example, select the Qth (in this example, Q=1 or Q=2) number of the reference time unit corresponding to the time unit , as the number of the time unit, such as selecting the first number as the number of the time unit, of course, other numbers can also be selected as the number of the time unit. Referring to Figure 7, for the slot containing 7 symbols, the numbers are 0, 1, For a slot containing 14 symbols, since the number of symbols in the reference slot is 7, the slot containing 14 symbols contains two subunits, so it can correspond to two numbers, such as 2 and 3 respectively, then for The number of the time unit (slot) may be 2 or 3, depending on the actual situation.

slot numbering method three

Referring to Figure 8, the third slot numbering method provided for the embodiment of the application, the numbering method is to determine the number of the slot in the wireless frame according to the number of symbols and the numbering interval corresponding to the type of the slot; or, according to the corresponding type of the slot. The number of symbols, the serial number and numbering interval of the subframe where the slot is located, determine the number of the slot in the radio frame; wherein, the numbering interval is determined by the number of symbols corresponding to the type of the slot and the number of symbols corresponding to the type of the reference slot by the first device. The type of the reference time unit is configured or predefined on the base station side.

其中，N_symbol为slot包含的符号数，

为参考slot包含的符号数。如，当前slot包含14个符号，参考slot包含7个符号，则编号间隔为14/7＝2。因此参照图8，对于包含14个符号的slot，其编号方式如图8所示，依次编号为0，2，……，而对于包含7个符号的slot，由于其对应的编号间隔为7/7＝1，因此实际上是按自然数依次编号。For example, for the situation shown in Figure 8, the calculation formula of the numbering interval is:

Among them, N _symbol is the number of symbols contained in the slot,

The number of symbols to include for the reference slot. For example, if the current slot includes 14 symbols and the reference slot includes 7 symbols, the numbering interval is 14/7=2. Therefore, referring to Fig. 8, for a slot containing 14 symbols, the numbering method is shown in Fig. 8, and the numbers are 0, 2, . . . 7=1, so it is actually numbered sequentially by natural numbers.

slot numbering method four

Referring to FIG. 9, the fourth slot numbering method provided by the embodiment of the present application, under this numbering method, a slot may correspond to one or more time units, each subunit corresponds to a reference time unit, and each subunit has a corresponding time unit. With reference to the number of the time unit, specifically, the number of the slot is determined according to the number of symbols corresponding to the type of the slot; or, the number of the slot is determined according to the number of symbols corresponding to the type of the slot and the serial number of the subframe where the slot is located.

Referring to Figure 9, the reference slot is a slot containing 7 symbols, so for a slot containing 14 symbols, since it corresponds to two reference slots, it contains two time units (2 and 3 shown in Figure 9), That is, each subunit (the same number of symbols contained in the reference slot) corresponds to a number.

After the slots are numbered according to any of the foregoing numbering methods, the initialization value of the reference signal sequence may be further determined according to the numbered slots.

Two cases are described below.

Case 1. The second parameter set contains the first parameter

Wherein, the first parameter is a parameter related to the number of the time unit. Taking the CSI-RS generation formula as an example, the first parameter is n' _s in it, that is, n' _s is determined according to the number of the time unit, and then According to the determined n' _s and other parameters in the second parameter set, the initial value of the reference signal sequence is determined.

The calculation method of the first situation is applicable to the above-mentioned slot numbering method 2 and slot numbering method 4. Specifically, the generation formula of the reference signal sequence initialization value in the existing protocol can still be used, that is:

Wherein, n' _s is the first parameter, and the first parameter is determined according to the number of the time unit, and the number of the time unit is determined according to the above-mentioned numbering method 2 and numbering method 4.

It should be noted that the above only takes the generation formula of CSI-RS as an example for description, but is not limited to the generation formula of CSI-RS, and can also be applied to other RS sequence generation formulas.

Case 2. The second parameter set includes the second parameter and the third parameter

Optionally, the third parameter is the number of the time unit, and the number of the time unit is sequentially numbered with a natural number, or the third parameter corresponds to the type of the time unit according to the number of the time unit and the type of the time unit. The number of symbols and the number of symbols corresponding to the type of the reference time unit are determined, and the number of the time unit is determined according to the number of symbols corresponding to the type of the time unit and the numbering interval, and the numbering interval is determined according to the type of the time unit and the numbering interval. The type of the reference time unit is determined, and the type of the reference time unit is configured or predefined on the base station side.

The second parameter is determined according to the type of the time unit.

Wherein, when the third parameter is the number of the time unit, it corresponds to the above-mentioned numbering method 1, and correspondingly, the generation method of c _init in the generation formula of CSI-RS can be modified as follows:

Wherein, n' _s is the third parameter, and n' _s is equal to the number of the time unit, and N _slot is the second parameter, which is determined according to the type of the time unit.

When the third parameter is determined according to the number of the time unit, the number of symbols corresponding to the type of the time unit, and the number of symbols corresponding to the type of the reference time unit, a possible design is to use the following formula to determine the third parameter n' _s :

为编号间隔，slot为时间单元的编号，in,

is the numbering interval, slot is the number of the time unit,

In a possible design, the embodiment of the present application also provides a calculation method for the initialization value of the reference signal sequence. Taking CSI-RS as an example, the calculation formula of CSI-RS in the existing protocol is:

There are different sequences in different CP cases. Similarly, when the system has slots of 7 and 14 symbols at the same time, it can be distinguished in a way similar to N_CP. For example, the calculation formula of c _init can be modified as:

in,

As shown in FIG. 10 , a schematic diagram of frequency domain resource numbering provided by an embodiment of the present application, taking CSI-RS as an example, for different subcarrier spacings (eg, 15kHz, 30KHz), according to the existing system solution (fixed at 15KHz), it is impossible to The number of the physical resource block (PRB) in the frequency domain is determined, so that the pilot mapping method cannot be determined.

The embodiment of the present application takes Sub6GHz as an example, selects 15kHz as the reference numerology or reference subcarrier spacing, and determines the reference signal sequence according to the maximum number of RBs (maximum system bandwidth) corresponding to 15kHz.

For example, for 30kHz, the pilot value on the RE is determined according to the relationship between the current 30kHz and the reference numerology/subcarrier spacing, that is, the relationship between 30KHz and 15KHz. As shown in Figure 10, for the pilot on the second RB of 30kHz The frequency value is the same as the pilot value on the third RB of 15kHz.

A CSI-RS mapping method provided in LTE is:

为下行最大带宽的RB数，

为系统带宽的RB数，m'为参考信号序列元素在系统带宽内的序号，m为参考信号序列元素在最大下行带宽内的序号，w_l"为正交覆盖码系数，

为映射到参考信号RE的信号。in,

is the number of RBs with the maximum downlink bandwidth,

is the number of RBs in the system bandwidth, m' is the sequence number of the reference signal sequence element in the system bandwidth, m is the sequence number of the reference signal sequence element in the maximum downlink bandwidth, w _' is the orthogonal cover code coefficient,

is the signal mapped to the reference signal RE.

According to Figure 10, the mapping method can be:

为参考子载波间隔对应的下行最大RB数，

为调度带宽对应参考子载波间隔下的RB数，m'为参考信号序列元素在系统带宽内的序号，m为参考信号序列元素在最大下行带宽内的序号，w_l"为正交覆盖码系数，

为映射到参考信号RE的信号，f为当前导频的子载波间隔，f_ref为参考子载波间隔。in,

is the maximum number of downlink RBs corresponding to the reference subcarrier spacing,

is the number of RBs under the reference subcarrier interval corresponding to the scheduling bandwidth, m' is the sequence number of the reference signal sequence element in the system bandwidth, m is the sequence number of the reference signal sequence element in the maximum downlink bandwidth, w _l" is the orthogonal cover code coefficient ,

is the signal mapped to the reference signal RE, f is the subcarrier spacing of the current pilot, and _fref is the reference subcarrier spacing.

Of course, other RS sequence generation formulas can also be modified using a similar method, which will not be repeated here.

The embodiments of the present application support pilot mapping in frequency division multiplexing (Frequency Division Multiplexing, FDM) between different subcarriers, and ensure that sequences on different RBs are different.

According to the method of the embodiment of the present application, the RBs in the system bandwidth that simultaneously exist with different subcarrier intervals can be numbered, and it is ensured that the numbers are not repeated.

All contents and embodiments of this application can be applied to the transmission or reception of downlink or uplink reference signals.

Based on the same inventive concept, an embodiment of the present application further provides a base station 1100, as shown in FIG. 11, which is a schematic structural diagram of the base station 1100, and the base station 1100 can be applied to execute the methods shown in FIG. 3 and FIG. 5 . The base station 1100 includes one or more remote radio units (English: remote radio unit, RRU for short) 1101 and one or more baseband units (English: baseband unit, BBU for short) 1102 . The RRU 1101 may be referred to as a transceiver unit, a transceiver, a transceiver circuit, or a transceiver, etc., which may include at least one antenna 11011 and a radio frequency unit 11012 . The RRU 1101 is mainly used for sending and receiving radio frequency signals and converting radio frequency signals to baseband signals, for example, for sending the signaling instructions described in the above embodiments to user equipment (ie, terminals). The part of the BBU1102 is mainly used to perform baseband processing and control the base station. The RRU1101 and the BBU1102 may be physically set together, or may be physically separated and set up, that is, a distributed base station.

The BBU 1102 is the control center of the base station, which may also be called a processing unit, and is mainly used to complete baseband processing functions, such as channel coding, multiplexing, modulation, and spreading. For example, the BBU (processing unit) may be used to control the base station to execute the processes shown in FIG. 3 and FIG. 5 .

In an example, the BBU 1102 may be composed of one or more boards, and the multiple boards may jointly support a wireless access network (such as an LTE network) of a single access standard, or may separately support wireless access systems of different access standards. Access Network. The BBU 1102 also includes a memory 11021 and a processor 11022. The memory 11021 is used to store necessary instructions and data. For example, the memory 11021 stores the parameter sets (including the first parameter set and the second parameter set) and the generated RS sequences in the above embodiments. The processor 11022 is used to control the base station to perform necessary actions, for example, to control the actions of the base station as shown in FIG. 3 and FIG. 5 . The memory 11021 and the processor 11022 may serve one or more single boards. That is to say, the memory and processor can be provided separately on each single board. It can also be that multiple boards share the same memory and processor. In addition, necessary circuits are also provided on each single board.

Based on the same inventive concept, an embodiment of the present application further provides a user equipment UE1200, as shown in FIG. 12 , which is a schematic structural diagram of the user equipment UE. For convenience of explanation, FIG. 12 only shows the main components of the user equipment. As shown in FIG. 12 , the user equipment 1200 includes a processor, a memory, a control circuit, an antenna, and an input and output device. The processor is mainly used to process the communication protocol and communication data, control the entire user equipment, execute software programs, and process data of the software programs, for example, to support the UE to execute parts of Fig. 1, Fig. 4, Fig. 5 the described action. The memory is mainly used to store software programs and data, such as the codebook described in the above embodiments. The control circuit is mainly used for the conversion of the baseband signal and the radio frequency signal and the processing of the radio frequency signal. The control circuit together with the antenna can also be called a transceiver, which is mainly used to send and receive radio frequency signals in the form of electromagnetic waves. For example, it can be used to execute part 402 in FIG. 4 to receive the signaling indication and/or reference signal sent by the base station. For details, please refer to the description of the relevant part above. Input and output devices, such as touch screens, display screens, and keyboards, are mainly used to receive data input by users and output data to users.

When the user equipment is powered on, the processor can read the software program in the storage unit, interpret and execute the instructions of the software program, and process the data of the software program. When data needs to be sent wirelessly, the processor performs baseband processing on the data to be sent, and outputs the baseband signal to the radio frequency circuit. The radio frequency circuit performs radio frequency processing on the baseband signal and sends the radio frequency signal through the antenna in the form of electromagnetic waves. When data is sent to the user equipment, the radio frequency circuit receives the radio frequency signal through the antenna, converts the radio frequency signal into a baseband signal, and outputs the baseband signal to the processor, which converts the baseband signal into data and processes the data.

Those skilled in the art can understand that, for the convenience of description, FIG. 12 only shows one memory and a processor. In an actual user equipment, there may be multiple processors and memories. The memory may also be referred to as a storage medium or a storage device, etc., which is not limited in this embodiment of the present invention.

As an optional implementation manner, the processor may include a baseband processor and a central processing unit. The baseband processor is mainly used to process communication protocols and communication data, and the central processing unit is mainly used to control the entire user equipment, execute A software program that processes data from the software program. The processor in FIG. 12 integrates the functions of the baseband processor and the central processing unit. Those skilled in the art can understand that the baseband processor and the central processing unit may also be independent processors, interconnected by technologies such as a bus. Those skilled in the art can understand that the user equipment may include multiple baseband processors to adapt to different network standards, the user equipment may include multiple central processors to enhance its processing capability, and various components of the user equipment may be connected through various buses. The baseband processor may also be expressed as a baseband processing circuit or a baseband processing chip. The central processing unit can also be expressed as a central processing circuit or a central processing chip. The function of processing the communication protocol and communication data may be built in the processor, or may be stored in the storage unit in the form of a software program, and the processor executes the software program to realize the baseband processing function.

Exemplarily, in this embodiment of the invention, an antenna and a control circuit with a transceiving function can be regarded as a transceiving unit 1201 of the UE1200, and a processor having a processing function can be regarded as a processing unit 1202 of the UE1200. As shown in FIG. 12 , the UE1200 includes a transceiver unit 1201 and a processing unit 1202 . The transceiving unit may also be referred to as a transceiver, a transceiver, a transceiving device, or the like. Optionally, the device used for implementing the receiving function in the transceiver unit 1201 may be regarded as a receiving unit, and the device used for implementing the sending function in the transceiver unit 1201 may be regarded as a sending unit, that is, the transceiver unit 1201 includes a receiving unit and an example of a sending unit. Attributes, the receiving unit may also be referred to as a receiver, a receiver, a receiving circuit, etc., and the transmitting unit may be referred to as a transmitter, a transmitter or a transmitting circuit, and the like.

Based on the same inventive concept, an embodiment of the present application further provides an apparatus, which may be a base station or a UE. As shown in FIG. 13 , the apparatus at least includes a processor 1301 and a memory 1302, and may further include a transceiver 1303, and may also include bus 1304.

The processor 1301, the memory 1302 and the transceiver 1303 are all connected through a bus 1304;

the memory 1302 for storing computer-executed instructions;

The processor 1301 is configured to execute computer-executed instructions stored in the memory 1302;

When the apparatus 1300 is a base station, the processor 1301 executes the computer execution instructions stored in the memory 1302, so that the apparatus 1300 executes the steps performed by the base station in the above-mentioned content request method provided in the embodiments of the present application, or causes the base station Deploy the functional unit corresponding to this step.

When the apparatus 1300 is a terminal, the processor 1301 executes the computer execution instructions stored in the memory 1302, so that the apparatus 1300 executes the steps performed by the terminal in the above-mentioned content request method provided in the embodiment of the present application, or causes the terminal Deploy the functional unit corresponding to this step.

The processor 1301 may include different types of processors 1301, or include processors 1301 of the same type; the processor 1301 may be any of the following: a central processing unit (Central Processing Unit, CPU for short), an ARM processor, a field A programmable gate array (Field Programmable Gate Array, referred to as FPGA), a dedicated processor and other devices with computing processing capabilities. In an optional implementation manner, the processor 1301 may also be integrated into a many-core processor.

The memory 1302 may be any one or any combination of the following: random access memory (Random Access Memory, RAM for short), read only memory (ROM for short), non-volatile memory (non-volatile memory, NVM for short), Solid State Drives (SSD for short), mechanical hard disks, magnetic disks, disk arrays and other storage media.

The transceiver 1303 is used for the apparatus 1300 to exchange data with other devices; for example, if the apparatus 1300 is a base station, the base station can execute the methods described in FIG. 3 and FIG. 5 ; the base station exchanges data with the terminal through the transceiver 1303; 1300 is a terminal, then the terminal can execute the methods described in FIG. 1, FIG. 4, and FIG. 5; the terminal exchanges data with the base station through the transceiver 1303; the transceiver 1303 can be any one or any combination of the following: network Interfaces (such as Ethernet interfaces), wireless network cards and other devices with network access functions.

The bus 1304 may include an address bus, a data bus, a control bus, and the like. For ease of presentation, FIG. 13 represents the bus with a thick line. The bus 1304 may be any one or any combination of the following: an Industry Standard Architecture (ISA for short) bus, a Peripheral Component Interconnect (PCI for short) bus, an Extended Industry Standard Architecture (Extended) IndustryStandard Architecture, referred to as EISA) bus and other wired data transmission devices.

Embodiments of the present application provide a computer-readable storage medium, where computer-executable instructions are stored in the computer-readable storage medium; a processor of a base station or a terminal executes the computer-executable instructions, so that the base station or terminal executes the foregoing method provided by the embodiments of the present application Steps performed by the base station or terminal in the above steps, or cause the base station or terminal to deploy functional units corresponding to the steps.

An embodiment of the present application provides a computer program product, where the computer program product includes computer-executable instructions, and the computer-executable instructions are stored in a computer-readable storage medium. The processor of the base station or the terminal can read the computer-executable instruction from the computer-readable storage medium; the processor executes the computer-executable instruction, so that the base station or the terminal performs the steps performed by the base station or the terminal in the above-mentioned method provided in the embodiment of the present application, Or make the base station or terminal deploy the functional unit corresponding to this step.

Those skilled in the art can also understand that various illustrative logical blocks (illustrative logical blocks) and steps (steps) listed in the embodiments of the present invention may be implemented by electronic hardware, computer software, or a combination of the two. Whether such functionality is implemented in hardware or software depends on the specific application and overall system design requirements. Those skilled in the art may use various methods to implement the described functions for each specific application, but such implementation should not be construed as exceeding the protection scope of the embodiments of the present invention.

The various illustrative logic units and circuits described in the embodiments of the present invention may be implemented by general purpose processors, digital signal processors, application specific integrated circuits (ASICs), field programmable gate arrays (FPGAs) or other programmable logic devices, Discrete gate or transistor logic, discrete hardware components, or any combination of the above are designed to implement or operate the described functions. A general-purpose processor may be a microprocessor, or alternatively, the general-purpose processor may be any conventional processor, controller, microcontroller, or state machine. A processor may also be implemented by a combination of computing devices, such as a digital signal processor and a microprocessor, multiple microprocessors, one or more microprocessors in combination with a digital signal processor core, or any other similar configuration. accomplish.

The steps of the method or algorithm described in the embodiments of the present invention may be directly embedded in hardware, a software unit executed by a processor, or a combination of the two. A software unit may be stored in RAM memory, flash memory, ROM memory, EPROM memory, EEPROM memory, registers, hard disk, removable disk, CD-ROM, or any other form of storage medium known in the art. Illustratively, a storage medium may be coupled to the processor such that the processor may read information from, and store information in, the storage medium. Optionally, the storage medium can also be integrated into the processor. The processor and storage medium may be provided in the ASIC, and the ASIC may be provided in the UE. Alternatively, the processor and the storage medium may also be provided in different components in the UE.

In one or more exemplary designs, the above functions described in the embodiments of the present invention may be implemented in hardware, software, firmware, or any combination of the three. If implemented in software, the functions may be stored on, or transmitted over, a computer-readable medium in the form of one or more instructions or code. Computer-readable media includes computer storage media and communication media that facilitate the transfer of a computer program from one place to another. Storage media can be any available media that a general-purpose or special-purpose computer can access. For example, such computer-readable media may include, but are not limited to, RAM, ROM, EEPROM, CD-ROM or other optical disk storage, magnetic disk storage or other magnetic storage devices, or any other device that can be used to carry or store instructions or data structures and Other media in the form of program code that can be read by a general-purpose or special-purpose computer, or a general-purpose or special-purpose processor. Also, any connection is properly defined as a computer-readable medium, for example, if software is transmitted from a web site, server or other remote source over a coaxial cable, fiber optic computer, twisted pair, digital subscriber line (DSL) Or transmitted by wireless means such as infrared, wireless, and microwave are also included in the definition of computer-readable media. The disks and disks include compact disks, laser disks, optical disks, DVDs, floppy disks and blu-ray disks. Disks usually reproduce data magnetically, while discs generally reproduce data optically with lasers. Combinations of the above can also be included in computer readable media.

The above description of the present specification can enable anyone skilled in the art to utilize or implement the present invention, and any modifications based on the disclosed content should be considered obvious in the art, and the basic principles described in the present invention can be applied to other modifications without departing from the spirit and scope of the invention. Thus, the present disclosure is not intended to be limited only to the embodiments and designs described, but can be extended to the widest scope consistent with the principles of the present invention and the novel features disclosed.

Claims (22)

1. A method for generating a reference signal RS, wherein the method comprises: The terminal determines a reference signal sequence initialization value according to a first parameter set, where the first parameter set includes a number of a time unit, and the number of symbols included in the time unit is less than the number of symbols included in a slot; The terminal generates an RS sequence according to the reference signal sequence initialization value. 2. The method according to claim 1, wherein the number of the time unit is determined according to the number of a time unit including the RS time domain position, or, according to at least two times that share the same RS time domain position The unit number is determined. 3. The method according to claim 2, wherein the number of the time unit is determined according to at least two time unit numbers that share the same RS time domain position, comprising: The number of the time unit is equal to the smallest time unit number among the at least two time unit numbers, or the number of the time unit is equal to the largest time unit number among the at least two time unit numbers. 4 . The method according to claim 1 , further comprising: the terminal receiving signaling from a base station, wherein the signaling includes information used to indicate the number of the time unit. 5 . The method according to claim 2 or 3, wherein the terminal receives signaling from a base station, the signaling including information indicating at least two time unit numbers that share the same RS time domain location. 6. The method according to claim 1, wherein the first parameter set further comprises the number of time units sharing the RS sequence in one or more time slots. 7. A method for receiving a reference signal RS, wherein the method comprises: The terminal receives signaling from the base station, the signaling is used to indicate the RS time domain position used by one or at least two time units, and the number of symbols in the time unit is less than the number of symbols in a slot; The terminal receives the RS from the base station according to the signaling. 8. The method according to claim 7, wherein the signaling is used to indicate the RS time domain position used by one or at least two time units, comprising: The signaling includes the information of the symbol K, or, includes the information of the time unit L and the information of the symbol P on the time unit L; Wherein, the information of the symbol K is the information of the symbol corresponding to the RS time domain position shared by the continuous or discontinuous N time units, and the time unit L is the continuous or discontinuous RS time domain position that shares the same RS time domain position. In the Lth time unit in the N time units, the symbol P is the Pth symbol in the Lth time unit, K is an integer, N is a positive integer, L is a positive integer not greater than N, and P is not more than the number of symbols contained in the time unit. 9. A method for generating a reference signal RS, wherein the method comprises: The base station determines a reference signal sequence initialization value according to a first parameter set, where the first parameter set includes a time unit number, and the number of symbols included in the time unit is less than the number of symbols included in a slot; The base station generates an RS sequence according to the reference signal sequence initialization value. 10. The method according to claim 9, wherein the number of the time unit is determined according to the number of a time unit including the RS time domain position, or according to at least two times that share the same RS time domain position The unit number is determined. 11. The method according to claim 10, wherein the number of the time unit is determined according to the number of at least two time units sharing the same RS time domain position, comprising: The number of the time unit is equal to the smallest time unit number among the at least two time unit numbers, or the number of the time unit is equal to the largest time unit number among the at least two time unit numbers. 12. The method according to claim 9, wherein the first parameter set further comprises the number of time units sharing the RS sequence in one or more time slots. 13. A method for generating a reference signal RS, wherein the method comprises: The first device determines a reference signal sequence initialization value according to a second parameter set, wherein the second parameter set includes a first parameter, and the first parameter is a parameter related to the number of the time unit, the number of the time unit related to the type of the time unit; or, the second parameter set includes a second parameter and a third parameter, the second parameter is a parameter related to the type of the time unit, and the third parameter is related to the time unit The number-related parameters of ; wherein, the number of symbols contained in a time unit is one or more, and the types of different time units contain different numbers of symbols in a time unit; The first device generates an RS sequence according to the reference signal sequence initialization value. 14. The method according to claim 13, wherein the number of the time unit is related to the type of the time unit, comprising: The first device determines the number of the time unit according to the type of the time unit. 15. The method according to claim 14, wherein the first device determines the number of the time unit according to the type of the time unit, comprising: The first device determines the number of the time unit according to the number of the reference time unit corresponding to the time unit; The type of the reference time unit is a signaling-configured or predefined time unit type. 16. The method according to claim 15, wherein determining the number of the time unit according to the number of the reference time unit corresponding to the time unit, comprising: The numbering of the time unit is the Qth number of the reference time unit corresponding to the time unit; Q is a positive integer, and Q is configured or predefined on the network side. 17. The method according to claim 15, wherein determining the serial number of the time unit according to the serial number of the reference time unit corresponding to the time unit comprises: The time unit corresponds to one or more subunits, each subunit corresponds to a reference time unit, and each subunit has the number of the corresponding reference time unit. 18. The method according to claim 13, wherein the third parameter is a parameter related to the number of the time unit, comprising: The third parameter is the number of the time unit, and the number of the time unit is sequentially numbered with natural numbers, or, The third parameter is determined according to the number of the time unit, the number of symbols corresponding to the type of the time unit and the number of symbols corresponding to the type of the reference time unit, and the number of the time unit is determined according to the number of symbols corresponding to the type of the time unit And the numbering interval is determined, and the numbering interval is determined according to the type of the time unit and the type of the reference time unit, and the type of the reference time unit is a network side configuration or a predefined time unit type; The second parameter is a parameter related to the type of time unit, including: The first device determines the second parameter according to the type of the time unit. The method according to any one of claims 13 to 18, wherein the first device is a network side device or a terminal or a relay. 20. An apparatus comprising a processor and a memory: The processor is configured to execute instructions in the memory, causing the apparatus to perform steps in the method of any of claims 1-8. 21. An apparatus comprising a processor and a memory: The processor is adapted to execute instructions in the memory to cause the apparatus to perform the steps in the method of any of claims 9-12. 22. An apparatus comprising a processor and a memory: The processor is adapted to execute instructions in the memory to cause the apparatus to perform steps in the method of any of claims 13-18.

Images