WO2017028364A1

WO2017028364A1 - Reference signal assignment method and equipment

Info

Publication number: WO2017028364A1
Application number: PCT/CN2015/090837
Authority: WO
Inventors: 张雷鸣; 刘江华; 刘鹍鹏
Original assignee: 华为技术有限公司
Priority date: 2015-08-19
Filing date: 2015-09-25
Publication date: 2017-02-23
Also published as: CN107925991B; CN107925991A

Abstract

The invention relates to the technical field of mobile communications, and specifically, to a reference signal assignment method and equipment, resolving a technical problem of increased interference owing to a multi-user non-orthogonal transmission. In one embodiment of the invention, information indicating a reference signal and a data streaming number contains different states. A state received by a signal recipient (or a terminal) can correspond to different orthogonal cover code (OCC) lengths, or, to different OCC sequences. The signal recipient is configured to determine that the reference signal is a reference signal corresponding to an assigned state, thereby ensuring a plurality of signal recipients (e.g., three or more signal recipients) to perform orthogonal transmissions during data transmissions. The embodiment not only increases transmission layers but also reduces interference between terminals, increasing a data transmission speed, and enhancing system spectral efficiency.

Description

Reference signal configuration method and device

This application claims the priority of the patent application filed on August 19, 2015, the Chinese Patent Application No. PCT/CN2015/087529, entitled "A Reference Signal Configuration Method and Apparatus", the entire contents of which are incorporated by reference. In this application.

Technical field

The present invention relates to the field of mobile communications technologies, and in particular, to a reference signal configuration method and device.

Background technique

At present, spatial multiplexing of data transmission, that is, multi-stream data transmission, can be supported in a wireless communication system due to the introduction of multiple antennas. The spatial multiplexing of data transmission can be divided into spatial multiplexing of single users (users, which can be understood as terminals) and spatial multiplexing of multiple users. Single-user spatial multiplexing is a multi-stream transmission mode for single users, and multi-user spatial multiplexing is a multi-stream transmission mode for multiple users. By implementing spatial multiplexing of multiple users, the spectrum efficiency of the system can be effectively improved.

In order to support spatial multiplexing of multiple users, the base station generally needs to send signaling to the user, where the signaling includes downlink control information, and after receiving the signaling, the user can obtain information such as a reference signal and a data flow number.

In the existing system, the DMRS (Demodulation Reference Signal) included in the reference signal can only support channel estimation of 2-layer multi-user orthogonal transmission, and if more layers of multi-user transmission, generally only Perform non-orthogonal transmission. Non-orthogonal transmission introduces additional inter-user interference, reduces channel estimation accuracy, and reduces system spectral efficiency.

Summary of the invention

The embodiments of the present invention provide a reference signal configuration method and device, which are used to solve the technical problem that multi-user non-orthogonal transmission causes large interference.

In a first aspect, a reference signal configuration method is provided, including:

Receiving downlink control information, where the downlink control information includes indicating a reference signal and a number of data streams information;

Determining a reference signal according to the information indicating the reference signal and the number of data streams;

Obtaining a channel estimate using the determined reference signal;

The information indicating the reference signal and the number of data streams includes at least three states:

The first state includes: the number of data streams is 1, the first antenna port, and the corresponding first OCC code length;

The second state includes at least: the number of data streams is 1, the second antenna port, and the corresponding first OCC code length;

The third state includes at least: the number of data streams is 1, the third antenna port, and the corresponding first OCC code length;

The fourth state includes at least: the number of data streams is 1, the fourth antenna port, and the corresponding first OCC code length;

The fifth state includes at least: the number of data streams is 1, the fifth antenna port, and the corresponding second OCC code length;

The time and frequency positions of the resources of the reference signals corresponding to the first antenna port, the second antenna port, the third antenna port, and the fourth antenna port are the same.

With reference to the first aspect, in a first possible implementation manner of the first aspect, the OCC corresponding to the first antenna port, the second antenna port, the third antenna port, and the fourth antenna port The code sequence is different.

With reference to the first aspect or the first possible implementation manner of the first aspect, in a second possible implementation manner of the first aspect, the reference signal resource corresponding to the fifth antenna port and the first antenna port The time and frequency are the same.

With reference to the first aspect or the first possible implementation manner or the second possible implementation manner of the first aspect, in a third possible implementation manner of the first aspect, the first OCC code length is 4, The second OCC code length is 2.

In conjunction with the first aspect, or the first possible implementation of the first aspect, or any one of the third possible implementation manners, in a fourth possible implementation manner of the first aspect, Any of the at least three states further includes: scrambling code sequence information.

With reference to the first aspect or the first possible implementation manner of the first aspect to any one of the possible implementation manners of the fourth possible implementation manner, in the fifth possible implementation manner of the first aspect, the code Under the condition that word 0 is enabled and codeword 1 is not enabled, the information indicating the reference signal and the number of data streams includes 8 states.

With reference to the first aspect or the first possible implementation manner of the first aspect to the fifth possible implementation manner, in a sixth possible implementation manner of the first aspect, The information indicating the reference signal and the number of data streams also includes a state in which the number of data streams is greater than one.

In conjunction with the sixth possible implementation of the first aspect, in a seventh possible implementation manner of the first aspect, the state in which the number of data streams is greater than 1 includes the second OCC code length.

With reference to the sixth possible implementation manner of the first aspect, or the seventh possible implementation manner, in the eighth possible implementation manner of the first aspect, the data flow number that is greater than the corresponding state of the data flow is respectively For 2, 3, and 4.

With reference to the first aspect or the first possible implementation manner of the first aspect to the eighth possible implementation manner, in a ninth possible implementation manner of the first aspect, The eight states that indicate the reference signal and the number of data streams are:

The first state includes: the number of data flows is 1, the first antenna port and the corresponding OCC code length is 4;

The second state includes: the number of data streams is 1, the second antenna port and the corresponding OCC code length are 4;

The third state includes: the number of data streams is 1, the third antenna port and the corresponding OCC code length is 4;

The fourth state includes: the number of data streams is 1, the fourth antenna port and the corresponding OCC code length is 4;

The fifth state includes: the number of data streams is 1, the fifth antenna port and the corresponding OCC code length are 2;

The sixth state includes at least: the number of data streams is two, the first antenna port and the second antenna end The port and the corresponding OCC code length are 2;

The seventh state includes: the number of data streams is three, the first antenna port, the second antenna port, and the sixth antenna port, and the corresponding OCC code length is 2;

The eighth state includes: the number of data streams is 4, the first antenna port, the second antenna port, the sixth antenna port, and the seventh antenna port, and the corresponding OCC code length is 2;

With reference to the ninth possible implementation manner of the first aspect, in a tenth possible implementation manner of the first aspect, the time of the resource of the reference signal corresponding to the sixth antenna port and the seventh antenna port The time and frequency position of the resource of the reference signal corresponding to the frequency position and the first antenna port are different.

With reference to the fifth possible implementation manner of the first aspect, the possible implementation manner of the tenth possible implementation manner, in the eleventh possible implementation manner of the first aspect, the indication reference signal The status of the information and the number of data streams includes the following table:

With reference to the first aspect or any one of the first possible implementation manner of the first aspect to the sixth possible implementation manner, in the twelfth possible implementation manner of the first aspect, The information indicating the reference signal and the number of data streams includes at least seven states in the following states:

The sixth state includes: the number of data streams is 2, the first antenna port and the second antenna port, and the corresponding OCC code length is 4;

The seventh state includes: the number of data streams is three, the first antenna port, the second antenna port, and the third antenna port, and the corresponding OCC code length is 4;

The eighth state includes: the number of data streams is 4, the first antenna port, the second antenna port, the third antenna port, and the fourth antenna port, and a corresponding OCC code length is 4;

In a second aspect, a reference signal configuration method is provided, including:

Obtaining a channel estimate using the determined reference signal;

The information indicating the reference signal and the number of data streams includes the following states:

The ninth state at least includes: the number of data streams is 2, the eighth antenna port, the ninth antenna port, and the corresponding first OCC code length;

The tenth state at least includes: the number of data streams is 2, the tenth antenna port, the eleventh antenna port, and the corresponding first OCC code length.

With reference to the second aspect, in a first possible implementation manner of the second aspect, the information indicating the information of the reference signal and the data stream includes: the scrambling code sequence information.

With reference to the second aspect, or the first possible implementation manner of the second aspect, in a second possible implementation manner of the second aspect, the eighth antenna port, the ninth antenna port, and the tenth antenna The time and frequency position of the resource of the reference signal corresponding to the port and the eleventh antenna port are the same, and the corresponding first OCC code length is 4.

With reference to the second aspect, or the first possible implementation manner of the second aspect, or the second possible implementation manner, in a third possible implementation manner of the second aspect, the eighth antenna port and the ninth The time and frequency positions of the resources of the reference signal corresponding to the antenna port are the same, the time and frequency positions of the resources of the reference signal corresponding to the tenth antenna port and the eleventh antenna port are the same, and the eighth antenna The time and frequency position of the resource of the reference signal corresponding to the port and the tenth antenna port are different, and the corresponding first OCC code length is 2.

With reference to the second aspect or the first possible implementation manner of the second aspect to any one of the third possible implementation manners, in the fourth possible implementation manner of the second aspect, the code Under the condition that word 0 is enabled and codeword 1 is enabled, the information indicating the reference signal and the number of data streams includes 8 states.

With reference to the second aspect or the first possible implementation manner of the second aspect, the possible implementation manner of the fourth possible implementation manner, in the fifth possible implementation manner of the second aspect, The information indicating the reference signal and the number of data streams also includes the following states:

The eleventh state includes at least: a data stream number of three, a twelfth antenna port, a thirteenth antenna port, and a fourteenth antenna port, corresponding to the second OCC code length;

The twelfth state includes at least: a data stream number of four, the twelfth antenna port, the thirteenth antenna port, the fourteenth antenna port, and the fifteenth antenna port corresponding to the second OCC code length.

In conjunction with the fifth possible implementation of the second aspect, in a sixth possible implementation of the second aspect, the second OCC code length is 2 or 4.

With reference to the fifth possible implementation manner of the second aspect, or the sixth possible implementation manner, in a seventh possible implementation manner of the second aspect, the twelfth antenna port, the thirteenth antenna port The time and frequency positions of the resources of the reference signal corresponding to the fourteenth antenna port and the fifteenth antenna port are the same.

With reference to the second aspect or the first possible implementation manner of the second aspect, the possible implementation manner of the seventh possible implementation manner, in the eighth possible implementation manner of the second aspect, The information indicating the reference signal and the number of data streams also includes a state in which the number of data streams is greater than four.

In conjunction with the eighth possible implementation of the second aspect, in a ninth possible implementation manner of the second aspect, the OCC code length corresponding to the state in which the number of data flows is greater than 4 is 4.

With reference to the ninth possible implementation manner of the second aspect, in the tenth possible implementation manner of the second aspect, the data flow number of the data flow number greater than 4 is 5, 6, 7, and 8.

In a third aspect, a reference signal configuration method is provided, including:

Transmitting downlink control information, where the downlink control information includes information indicating a reference signal and a number of data streams;

And transmitting, by using the information indicating the reference signal and the number of data streams, the reference signal, where the reference signal is used by the terminal to obtain a channel estimation;

With reference to the third aspect, in a first possible implementation manner of the third aspect, the OCC corresponding to the first antenna port, the second antenna port, the third antenna port, and the fourth antenna port The code sequence is different.

With reference to the third aspect, or the first possible implementation manner of the third aspect, in a second possible implementation manner of the third aspect, the reference signal resource corresponding to the fifth antenna port and the first antenna port The time and frequency are the same.

With reference to the third aspect, or the first possible implementation manner of the third aspect, or the second possible implementation manner, in a third possible implementation manner of the third aspect, the first OCC code length is 4, The second OCC code length is 2.

With reference to the third aspect, or the first possible implementation manner of the third aspect, to any one of the third possible implementation manners, in a fourth possible implementation manner of the third aspect, Any of the at least three states further includes: scrambling code sequence information.

With reference to the third aspect, or the first possible implementation manner of the third aspect, the possible implementation manner of the fourth possible implementation manner, in the fifth possible implementation manner of the third aspect, the code Under the condition that word 0 is enabled and codeword 1 is not enabled, the information indicating the reference signal and the number of data streams includes 8 states.

With reference to the third aspect or the first possible implementation manner of the third aspect, the possible implementation manner of the fifth possible implementation manner, in a sixth possible implementation manner of the third aspect, The information indicating the reference signal and the number of data streams further includes a state in which the number of data streams is greater than one.

With reference to the sixth possible implementation manner of the third aspect, in a seventh possible implementation manner of the third aspect, the state in which the number of data streams is greater than 1 includes the second OCC code length.

With reference to the sixth possible implementation manner of the third aspect, or the seventh possible implementation manner, in the eighth possible implementation manner of the third aspect, the data flow number that is greater than the corresponding state of the data flow is respectively For 2, 3, and 4.

With reference to the third aspect or the first possible implementation manner of the third aspect, to any one of the possible implementation manners of the eighth possible implementation manner, in the ninth possible implementation manner of the third aspect, The eight states that indicate the reference signal and the number of data streams are:

The sixth state includes: the number of data streams is 2, the first antenna port and the second antenna port, and the corresponding OCC code length is 2;

With reference to the ninth possible implementation manner of the third aspect, in a tenth possible implementation manner of the third aspect, the time of the resource of the reference signal corresponding to the sixth antenna port and the seventh antenna port The time and frequency position of the resource of the reference signal corresponding to the frequency position and the first antenna port are different.

With reference to the fifth possible implementation manner of the third aspect, the possible implementation manner of the tenth possible implementation manner, in the eleventh possible implementation manner of the third aspect, the indication reference signal The status of the information and the number of data streams includes the following table:

With reference to the third aspect, or the first possible implementation manner of the third aspect, the possible implementation manner of the sixth possible implementation manner, in the twelfth possible implementation manner of the third aspect, The information indicating the reference signal and the number of data streams includes at least seven states in the following states:

The first state includes at least: the number of data streams is 1, the first antenna port and corresponding The OCC code length is 4;

In a fourth aspect, a reference signal configuration method is provided, including:

With reference to the fourth aspect, in a first possible implementation manner of the fourth aspect, the information indicating the information of the reference signal and the number of data streams includes: the scrambling code sequence information.

With reference to the fourth aspect, or the first possible implementation manner of the fourth aspect, in a second possible implementation manner of the fourth aspect, the eighth antenna port, the ninth antenna port, and the tenth antenna The time and frequency position of the resource of the reference signal corresponding to the port and the eleventh antenna port are the same, and the corresponding first OCC code length is 4.

With reference to the fourth aspect, or the first possible implementation manner or the second possible implementation manner of the fourth aspect, in a third possible implementation manner of the fourth aspect, the eighth antenna port and the ninth The time and frequency positions of the resources of the reference signal corresponding to the antenna port are the same, the time and frequency positions of the resources of the reference signal corresponding to the tenth antenna port and the eleventh antenna port are the same, and the eighth antenna The time and frequency position of the resource of the reference signal corresponding to the port and the tenth antenna port are different, and the corresponding first OCC code length is 2.

With reference to the fourth aspect or the first possible implementation manner of the fourth aspect to any one of the third possible implementation manners, in the fourth possible implementation manner of the fourth aspect, the code Under the condition that word 0 is enabled and codeword 1 is enabled, the information indicating the reference signal and the number of data streams includes 8 states.

With reference to the fourth aspect, or any one of the possible possible implementations of the fourth possible implementation to the fourth possible implementation, in a fifth possible implementation manner of the fourth aspect, The information indicating the reference signal and the number of data streams also includes the following states:

In combination with the fifth possible implementation of the fourth aspect or the sixth possible implementation, In a seventh possible implementation manner of the fourth aspect, the resource of the reference signal corresponding to the twelfth antenna port, the thirteenth antenna port, the fourteenth antenna port, and the fifteenth antenna port The time and frequency are the same.

With reference to the fourth aspect or the first possible implementation manner of the fourth aspect, the possible implementation manner of the seventh possible implementation manner, in the eighth possible implementation manner of the fourth aspect, The information indicating the reference signal and the number of data streams also includes a state in which the number of data streams is greater than four.

In conjunction with the eighth possible implementation of the fourth aspect, in a ninth possible implementation manner of the fourth aspect, the OCC code length corresponding to the state in which the number of data streams is greater than 4 is 4.

With reference to the ninth possible implementation manner of the fourth aspect, in a tenth possible implementation manner of the fourth aspect, the data flow number of the data flow number greater than 4 is 5, 6, 7, and 8.

In a fifth aspect, a signal receiving end is provided, including:

a receiving module, configured to receive downlink control information, where the downlink control information includes information indicating a reference signal and a data flow number;

a processing module, configured to determine a reference signal according to the information indicating the reference signal and the number of data streams;

The processing module is further configured to obtain a channel estimate by using the determined reference signal;

The first antenna port, the second antenna port, the third antenna port, and the The time and frequency positions of the resources of the reference signal corresponding to the fourth antenna port are the same.

With reference to the fifth aspect, in a first possible implementation manner of the fifth aspect, the OCC corresponding to the first antenna port, the second antenna port, the third antenna port, and the fourth antenna port The code sequence is different.

With reference to the fifth aspect, or the first possible implementation manner of the fifth aspect, in a second possible implementation manner of the fifth aspect, the reference signal resource corresponding to the fifth antenna port and the first antenna port The time and frequency are the same.

With reference to the fifth aspect, or the first possible implementation manner of the fifth aspect, or the second possible implementation manner, in a third possible implementation manner of the fifth aspect, the first OCC code length is 4, The second OCC code length is 2.

With reference to the fifth aspect or the first possible implementation manner of the fifth aspect, the possible implementation manner of the third possible implementation manner, in the fourth possible implementation manner of the fifth aspect, Any of the at least three states further includes: scrambling code sequence information.

With reference to the fifth aspect or the first possible implementation manner of the fifth aspect, the possible implementation manner of the fourth possible implementation manner, in the fifth possible implementation manner of the fifth aspect, the code Under the condition that word 0 is enabled and codeword 1 is not enabled, the information indicating the reference signal and the number of data streams includes 8 states.

With reference to the fifth aspect or the first possible implementation manner of the fifth aspect, the fifth possible implementation manner of the fifth aspect, in the sixth possible implementation manner of the fifth aspect, The information indicating the reference signal and the number of data streams also includes a state in which the number of data streams is greater than one.

With reference to the sixth possible implementation manner of the fifth aspect, in a seventh possible implementation manner of the fifth aspect, the state in which the number of data streams is greater than 1 includes the second OCC code length.

With reference to the sixth possible implementation manner of the fifth aspect, or the seventh possible implementation manner, in the eighth possible implementation manner of the fifth aspect, the data flow number that is greater than the corresponding state of the data flow is respectively For 2, 3, and 4.

With reference to the fifth aspect or the first possible implementation manner of the fifth aspect, the possible implementation manner of the eighth possible implementation manner, in the ninth possible implementation manner of the fifth aspect, The eight states indicating the reference signal and the number of data streams include:

With reference to the ninth possible implementation manner of the fifth aspect, in a tenth possible implementation manner of the fifth aspect, the time of the resource of the reference signal corresponding to the sixth antenna port and the seventh antenna port The time and frequency position of the resource of the reference signal corresponding to the frequency position and the first antenna port are different.

With reference to the fifth possible implementation manner of the fifth aspect, the possible implementation manner of the tenth possible implementation manner, in the eleventh possible implementation manner of the fifth aspect, the indication reference signal The status of the information and the number of data streams includes the following table:

With reference to the fifth aspect or the first possible implementation manner of the fifth aspect, the possible implementation manner of the sixth possible implementation manner, in the twelfth possible implementation manner of the fifth aspect, The information indicating the reference signal and the number of data streams includes at least seven states in the following states:

In a sixth aspect, a signal receiving end is provided, including:

With reference to the sixth aspect, in a first possible implementation manner of the sixth aspect, the information indicating the information of the reference signal and the data stream includes: the scrambling code sequence information.

With reference to the sixth aspect, or the first possible implementation manner of the sixth aspect, in a second possible implementation manner of the sixth aspect, the eighth antenna port, the ninth antenna port, and the tenth antenna The time and frequency position of the resource of the reference signal corresponding to the port and the eleventh antenna port are the same, and the corresponding first OCC code length is 4.

Combining the sixth aspect or the first possible implementation of the sixth aspect or the second possible implementation In a third possible implementation manner of the sixth aspect, the time and frequency positions of the resources of the reference signal corresponding to the eighth antenna port and the ninth antenna port are the same, and the tenth antenna port and The time and frequency positions of the resources of the reference signal corresponding to the eleventh antenna port are the same, and the time and frequency positions of the resources of the reference signal corresponding to the eighth antenna port and the tenth antenna port are different. The corresponding first OCC code length is 2.

With reference to the sixth aspect or the first possible implementation manner of the sixth aspect to any one of the third possible implementation manners, in the fourth possible implementation manner of the sixth aspect, the code Under the condition that word 0 is enabled and codeword 1 is enabled, the information indicating the reference signal and the number of data streams includes 8 states.

With reference to the sixth aspect or the first possible implementation manner of the sixth aspect, the possible implementation manner of the fourth possible implementation manner, in the fifth possible implementation manner of the sixth aspect, The information indicating the reference signal and the number of data streams also includes the following states:

With reference to the fifth possible implementation manner of the sixth aspect, or the sixth possible implementation manner, in a seventh possible implementation manner of the sixth aspect, the twelfth antenna port, the thirteenth antenna port The time and frequency positions of the resources of the reference signal corresponding to the fourteenth antenna port and the fifteenth antenna port are the same.

With reference to the sixth aspect or the first possible implementation manner of the sixth aspect, the possible implementation manner of the seventh possible implementation manner, in the eighth possible implementation manner of the sixth aspect, The information indicating the reference signal and the number of data streams also includes a state in which the number of data streams is greater than four.

In conjunction with the eighth possible implementation of the sixth aspect, the ninth possible implementation of the sixth aspect In the current mode, the OCC code length corresponding to the state in which the number of data streams is greater than 4 is 4.

With reference to the ninth possible implementation manner of the sixth aspect, in a tenth possible implementation manner of the sixth aspect, the data flow number of the data flow number greater than 4 is 5, 6, 7, and 8.

In a seventh aspect, a signal transmitting end is provided, including:

a sending module, configured to send downlink control information, where the downlink control information includes information indicating a reference signal and a data flow number;

The sending module is further configured to send, according to the information indicating the reference signal and the number of data streams, the reference signal, where the reference signal is used by the signal receiving end to obtain a channel estimation;

With reference to the seventh aspect, in a first possible implementation manner of the seventh aspect, the OCC corresponding to the first antenna port, the second antenna port, the third antenna port, and the fourth antenna port The code sequence is different.

With reference to the seventh aspect, or the first possible implementation manner of the seventh aspect, in a second possible implementation manner of the seventh aspect, the reference signal resource corresponding to the fifth antenna port and the first antenna port The time and frequency are the same.

With reference to the seventh aspect, the first possible implementation manner of the seventh aspect, or the second possible implementation manner, in a third possible implementation manner of the seventh aspect, the first OCC code length is 4, The second OCC code length is 2.

With reference to the seventh aspect, or the first possible implementation manner of the seventh aspect, to any one of the third possible implementation manners, in a fourth possible implementation manner of the seventh aspect, Any of the at least three states further includes: scrambling code sequence information.

With reference to the seventh aspect, or the first possible implementation manner of the seventh aspect, the possible implementation manner of the fourth possible implementation manner, in the fifth possible implementation manner of the seventh aspect, Under the condition that word 0 is enabled and codeword 1 is not enabled, the information indicating the reference signal and the number of data streams includes 8 states.

With reference to the seventh aspect, or the first possible implementation manner of the seventh aspect, to any one of the possible implementation manners of the fifth possible implementation, in a sixth possible implementation manner of the seventh aspect, The information indicating the reference signal and the number of data streams also includes a state in which the number of data streams is greater than one.

With reference to the sixth possible implementation manner of the seventh aspect, in a seventh possible implementation manner of the seventh aspect, the state in which the number of data streams is greater than 1 includes the second OCC code length.

With reference to the sixth possible implementation manner of the seventh aspect, or the seventh possible implementation manner, in the eighth possible implementation manner of the seventh aspect, the data flow number that is greater than one corresponding state is respectively For 2, 3, and 4.

With reference to the seventh aspect, or the first possible implementation manner of the seventh aspect, to any one of the possible implementation manners of the eighth possible implementation, in a ninth possible implementation manner of the seventh aspect, The eight states that indicate the reference signal and the number of data streams are:

With reference to the ninth possible implementation manner of the seventh aspect, in a tenth possible implementation manner of the seventh aspect, the time of the resource of the reference signal corresponding to the sixth antenna port and the seventh antenna port The time and frequency position of the resource of the reference signal corresponding to the frequency position and the first antenna port are different.

With reference to the fifth possible implementation manner of the seventh aspect, the possible implementation manner of the tenth possible implementation manner, in the eleventh possible implementation manner of the seventh aspect, the indication reference signal The status of the information and the number of data streams includes the following table:

With reference to the seventh aspect, or the first possible implementation manner of the seventh aspect, the possible implementation manner of the sixth possible implementation manner, in the twelfth possible implementation manner of the seventh aspect, The information indicating the reference signal and the number of data streams includes at least seven states in the following states:

The eighth state includes at least: the number of data streams is four, the first antenna port, and the second antenna end The port, the third antenna port, and the fourth antenna port and the corresponding OCC code length are 4;

In an eighth aspect, a signal transmitting end is provided, including:

The ninth state includes at least: a data stream number of 2, an eighth antenna port, a ninth antenna port, and a corresponding first orthogonal spreading code OCC code length;

With reference to the eighth aspect, in a first possible implementation manner of the eighth aspect, the information indicating the information of the reference signal and the data stream includes: the scrambling code sequence information.

With reference to the eighth aspect, or the first possible implementation manner of the eighth aspect, in a second possible implementation manner of the eighth aspect, the eighth antenna port, the ninth antenna port, and the tenth antenna The time and frequency position of the resource of the reference signal corresponding to the port and the eleventh antenna port are the same, and the corresponding first OCC code length is 4.

With reference to the eighth aspect, or the first possible implementation manner of the eighth aspect, or the second possible implementation manner, in a third possible implementation manner of the eighth aspect, the eighth antenna port and the ninth The time and frequency positions of the resources of the reference signal corresponding to the antenna port are the same, the time and frequency positions of the resources of the reference signal corresponding to the tenth antenna port and the eleventh antenna port are the same, and the eighth antenna The time and frequency position of the resource of the reference signal corresponding to the port and the tenth antenna port are different, and the corresponding first OCC code length is 2.

With reference to the eighth aspect, or the first possible implementation manner of the eighth aspect, to any one of the third possible implementation manners, in a fourth possible implementation manner of the eighth aspect, Under the condition that codeword 0 is enabled and codeword 1 is enabled, the information indicating the reference signal and the number of data streams includes eight states.

With reference to the eighth aspect, or the first possible implementation manner of the eighth aspect, the possible implementation manner of the fourth possible implementation manner, in the fifth possible implementation manner of the eighth aspect, The information indicating the reference signal and the number of data streams also includes the following states:

With reference to the fifth possible implementation manner of the fourth aspect, or the sixth possible implementation manner, in a seventh possible implementation manner of the fourth aspect, the twelfth antenna port, the thirteenth antenna port The time and frequency positions of the resources of the reference signal corresponding to the fourteenth antenna port and the fifteenth antenna port are the same.

With reference to the eighth aspect, or the first possible implementation manner of the eighth aspect, the possible implementation manner of the seventh possible implementation manner, in the eighth possible implementation manner of the eighth aspect, The information indicating the reference signal and the number of data streams also includes a state in which the number of data streams is greater than four.

With reference to the eighth possible implementation manner of the eighth aspect, in a ninth possible implementation manner of the eighth aspect, the OCC code length corresponding to the state in which the number of data streams is greater than 4 is 4.

With reference to the ninth possible implementation manner of the eighth aspect, in the tenth possible implementation manner of the eighth aspect, the data flow number of the data flow number greater than 4 is 5, 6, 7, and 8.

A ninth aspect provides a reference signal configuration method, including:

Receiving downlink control information, where the downlink control information includes information indicating a reference signal and a number of data streams;

Obtaining a channel estimate using the determined reference signal;

The twenty-second state includes at least: a data stream number of three, a seventeenth antenna port, an eighteenth antenna port, a nineteenth antenna port, and a corresponding first OCC code length;

The time and frequency position of the resources of the reference signal corresponding to the seventeenth antenna port, the eighteenth antenna port, and the nineteenth antenna port are the same.

With reference to the ninth aspect, in a first possible implementation manner of the ninth aspect, the OCC code sequence corresponding to the seventeenth antenna port, the eighteenth antenna port, and the nineteenth antenna port different.

With reference to the ninth aspect, or the first possible implementation manner of the ninth aspect, in the second possible implementation manner of the ninth aspect, the first OCC code length is 4.

With reference to the ninth aspect, or the first possible implementation manner of the ninth aspect, or the second possible implementation manner, in a third possible implementation manner of the ninth aspect, the state further includes a scrambling code ID or a scrambling code Sequence information.

With reference to the ninth aspect, or the first possible implementation manner of the ninth aspect, to any one of the third possible implementation manners, in a fourth possible implementation manner of the ninth aspect, The codeword 0 corresponding to the state is enabled, the codeword 1 is enabled, or the codeword 0 corresponding to the state is enabled, and the codeword 1 is not enabled.

With reference to the ninth aspect, or the first possible implementation manner of the ninth aspect, the possible implementation manner of the fourth possible implementation manner, in the fifth possible implementation manner of the ninth aspect, The information indicating the reference signal and the number of data streams also includes the following states:

The twenty-third state includes at least: a data stream number of three, a seventeenth antenna port, an eighteenth antenna port, a nineteenth antenna port, and a corresponding second OCC code length;

The time and frequency position of the reference signal resource corresponding to the seventeenth antenna port and the eighteenth antenna port are the same, and the seventeenth antenna port corresponds to the nineteenth antenna port. The time and frequency locations of the resources of the reference signal are not the same.

In conjunction with the fifth possible implementation of the ninth aspect, the sixth possible implementation in the ninth aspect In the current mode, the second OCC code length is 2 or 4.

With reference to the ninth aspect, or the first possible implementation manner of the ninth aspect, the possible implementation manner of the sixth possible implementation manner, in the seventh possible implementation manner of the ninth aspect, The information indicating the reference signal and the number of data streams also includes the following states:

The twenty-fourth state includes at least: a data stream number of four, a seventeenth antenna port, an eighteenth antenna port, a nineteenth antenna port, and a twentieth antenna port, and a corresponding third OCC code length;

The time and frequency position of the resources of the reference signal corresponding to the seventeenth antenna port and the eighteenth antenna port are the same.

With reference to the seventh possible implementation manner of the ninth aspect, in the eighth possible implementation manner of the ninth aspect, the seventeenth antenna port, the eighteenth antenna port, and the nineteenth antenna The time and frequency positions of the resources of the reference signal corresponding to the port are the same.

With reference to the seventh possible implementation manner of the ninth aspect, or the eighth possible implementation manner, in the ninth possible implementation manner of the ninth aspect, the seventeenth antenna port, the eighteenth antenna And a port, wherein the nineteenth antenna port has the same time and frequency position as the resource of the reference signal corresponding to the twentieth antenna port.

With reference to the seventh possible implementation manner of the ninth aspect, or the eighth possible implementation manner or the ninth possible implementation manner, in the tenth possible implementation manner of the ninth aspect, the third OCC code length It is 2 or 4.

A tenth aspect provides a reference signal configuration method, including:

Wherein the seventeenth antenna port, the eighteenth antenna port, and the nineteenth antenna The time and frequency positions of the resources of the reference signal corresponding to the port are the same.

With reference to the tenth aspect, in a first possible implementation manner of the tenth aspect, the OCC code sequence corresponding to the seventeenth antenna port, the eighteenth antenna port, and the nineteenth antenna port different.

In conjunction with the tenth aspect or the first possible implementation manner of the tenth aspect, in a second possible implementation manner of the tenth aspect, the first OCC code length is 4.

With reference to the tenth aspect or the first possible implementation manner or the second possible implementation manner of the tenth aspect, in a third possible implementation manner of the tenth aspect, the state further includes a scrambling code ID or a scrambling code Sequence information.

With reference to the tenth aspect, or the first possible implementation manner of the tenth aspect, to any one of the third possible implementation manners, in a fourth possible implementation manner of the tenth aspect, The codeword 0 corresponding to the state is enabled, the codeword 1 is enabled, or the codeword 0 corresponding to the state is enabled, and the codeword 1 is not enabled.

With reference to the tenth aspect, or the first possible implementation manner of the tenth aspect, the possible implementation manner of the fourth possible implementation manner, in the fifth possible implementation manner of the tenth aspect, The information indicating the reference signal and the number of data streams includes the following states:

In conjunction with the fifth possible implementation of the tenth aspect, in a sixth possible implementation manner of the tenth aspect, the second OCC code length is 2 or 4.

With reference to the tenth aspect, or the first possible implementation manner of the tenth aspect, to any one of the sixth possible implementation manners, in a seventh possible implementation manner of the tenth aspect, The information indicating the reference signal and the number of data streams also includes the following states:

The twenty-fourth state includes at least: the number of data streams is 4, the seventeenth antenna port, and the eighteenth antenna end Port, the nineteenth antenna port and the twentieth antenna port, and the corresponding third OCC code length;

The time and frequency positions of the resources of the reference signals corresponding to the seventeenth antenna port and the eighteenth antenna port are the same.

With reference to the tenth aspect, or the seventh possible implementation manner of the tenth aspect, in the eighth possible implementation manner of the tenth aspect, the seventeenth antenna port, the eighteenth antenna port, and the The time and frequency positions of the resources of the reference signal corresponding to the nineteenth antenna port are the same.

With reference to the seventh possible implementation manner of the tenth aspect, or the eighth possible implementation manner, in the ninth possible implementation manner of the tenth aspect, the seventeenth antenna port, the eighteenth antenna And a port, wherein the nineteenth antenna port has the same time and frequency position as the resource of the reference signal corresponding to the twentieth antenna port.

With reference to the seventh possible implementation manner of the tenth aspect, or the eighth possible implementation manner or the ninth possible implementation manner, in the tenth possible implementation manner of the tenth aspect, the third OCC code length It is 2 or 4.

In an eleventh aspect, a signal receiving end is provided, including:

In conjunction with the eleventh aspect, in a first possible implementation manner of the eleventh aspect, an OCC corresponding to the seventeenth antenna port, the eighteenth antenna port, and the nineteenth antenna port The code sequence is different.

In combination with the eleventh aspect or the first possible implementation of the eleventh aspect, in the eleventh aspect In a second possible implementation manner, the first OCC code length is 4.

In conjunction with the first possible implementation manner or the second possible implementation manner of the eleventh or eleventh aspect, in a third possible implementation manner of the eleventh aspect, the state further includes a scrambling code ID Or scrambling sequence information.

In a fourth possible implementation manner of the eleventh aspect, in combination with the eleventh aspect or the first possible implementation manner of the third possible implementation to the third possible implementation manner The codeword 0 corresponding to the state is enabled, the codeword 1 is enabled, or the codeword 0 corresponding to the state is enabled, and the codeword 1 is not enabled.

In a fifth possible implementation manner of the eleventh aspect, the first possible implementation manner of the eleventh aspect or the eleventh possible implementation manner of the fourth possible implementation manner The information indicating the reference signal and the number of data streams further includes the following states:

In a sixth possible implementation manner of the eleventh aspect, the second OCC code length is 2 or 4.

In a seventh possible implementation manner of the eleventh aspect, in combination with the first possible implementation manner of the eleventh aspect or the eleventh aspect, the possible implementation manner of the sixth possible implementation manner The information indicating the reference signal and the number of data streams further includes the following states:

In conjunction with the seventh possible implementation of the eleventh aspect, in an eighth possible implementation manner of the eleventh aspect, the seventeenth antenna port, the eighteenth antenna port, and the tenth Nine days The time and frequency positions of the resources of the reference signal corresponding to the line port are the same.

With reference to the seventh possible implementation manner of the eleventh aspect, or the eighth possible implementation manner, in the ninth possible implementation manner of the eleventh aspect, the seventeenth antenna port, the tenth An eight-antenna port, wherein the nineteenth antenna port has the same time and frequency position as a resource of a reference signal corresponding to the twentieth antenna port.

With reference to the seventh possible implementation manner, the eighth possible implementation manner, or the ninth possible implementation manner of the eleventh aspect, in a tenth possible implementation manner of the eleventh aspect, the third OCC It is 2 or 4.

According to a twelfth aspect, a signal transmitting end is provided, including:

In conjunction with the twelfth aspect, in a first possible implementation of the twelfth aspect, the seventeenth antenna port, the eighteenth antenna port, and the OCC corresponding to the nineteenth antenna port The code sequence is different.

In a second possible implementation manner of the twelfth aspect, the first OCC code length is 4.

In conjunction with the twelfth aspect or the first possible implementation or the second possible implementation of the twelfth aspect, in a third possible implementation of the twelfth aspect, the state further includes a scrambling code ID Or scrambling sequence information.

Combining the twelfth aspect or the first possible implementation of the twelfth aspect to the third possible In a fourth possible implementation manner of the twelfth aspect, the codeword 0 corresponding to the state is enabled, the codeword 1 is enabled, or the state is corresponding to Codeword 0 is enabled and codeword 1 is not enabled.

In a fifth possible implementation manner of the twelfth aspect, in combination with the twelfth aspect or the first possible implementation to the fourth possible implementation of the twelfth aspect, The information indicating the reference signal and the number of data streams further includes the following states:

In a sixth possible implementation manner of the twelfth aspect, the second OCC code length is 2 or 4.

In a seventh possible implementation manner of the twelfth aspect, in combination with the twelfth aspect or the first possible implementation manner of the twelfth aspect to the sixth possible implementation manner The information indicating the reference signal and the number of data streams further includes the following states:

In conjunction with the seventh possible implementation of the twelfth aspect, in the eighth possible implementation of the twelfth aspect, the seventeenth antenna port, the eighteenth antenna port, and the tenth The time and frequency positions of the resources of the reference signals corresponding to the nine antenna ports are the same.

With reference to the seventh possible implementation manner of the twelfth aspect, or the eighth possible implementation manner, in the ninth possible implementation manner of the twelfth aspect, the seventeenth antenna port, the tenth An eight-antenna port, wherein the nineteenth antenna port has the same time and frequency position as a resource of a reference signal corresponding to the twentieth antenna port.

With reference to the seventh possible implementation manner of the twelfth aspect, or the eighth possible implementation manner, or the ninth possible implementation manner, in the tenth possible implementation manner of the twelfth aspect, the third OCC The code length is 2 or 4.

In the embodiment of the present invention, the information indicating the reference signal and the number of data streams carries different states, and the state received by the terminal may correspond to different OCC code lengths, which may correspond to different OCC code sequences, and the terminal determines. The reference signal is also a reference signal corresponding to the assigned state, so that multiple (for example, at least three) terminals can be orthogonally transmitted when transmitting data, thus increasing the number of transmission layers and reducing the number of terminals. Interference, increase data transfer rates, and increase system spectral efficiency.

DRAWINGS

1 is a flowchart of a first method for configuring a reference signal according to an embodiment of the present invention;

2 is a flowchart of a second reference signal configuration method according to an embodiment of the present invention;

3 is a flowchart of a third reference signal configuration method according to an embodiment of the present invention;

4 is a flowchart of a fourth method for configuring a reference signal according to an embodiment of the present invention;

FIG. 5 is a flowchart of a fifth reference signal configuration method according to an embodiment of the present invention;

6A is a flowchart of a sixth reference signal configuration method according to an embodiment of the present invention;

6B is a flowchart of a seventh reference signal configuration method according to an embodiment of the present invention;

6C is a flowchart of an eighth reference signal configuration method according to an embodiment of the present invention;

FIG. 7 is a structural block diagram of a signal receiving end according to an embodiment of the present invention; FIG.

FIG. 8 is a schematic structural diagram of a signal receiving end in an embodiment of the present invention;

FIG. 9 is a schematic structural diagram of a signal transmitting end according to an embodiment of the present invention.

detailed description

The technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the drawings in the embodiments of the present invention. It is a partial embodiment of the invention, and not all of the embodiments. Based on the embodiments of the present invention, those of ordinary skill in the art obtain the following without creative efforts. All other embodiments obtained are within the scope of the invention.

Hereinafter, some of the terms used in the present invention will be explained so as to be understood by those skilled in the art.

1) A terminal, which is a device that provides voice and/or data connectivity to a user, for example, may include a handheld device with wireless connectivity, or a processing device connected to a wireless modem. The terminal can communicate with the core network via the RAN to exchange voice and/or data with the RAN. The terminal may be referred to as a UE (user equipment), a wireless terminal, a mobile terminal, a Subscriber Unit, a Subscriber Station, a Mobile Station, a Mobile, a remote station ( Remote Station), AP (Access Point), Remote Terminal, Access Terminal, User Terminal, User Agent, or User Device Wait. For example, it can be a mobile phone (or "cellular" phone), a computer with a mobile terminal, a portable, pocket, handheld, computer built-in or in-vehicle mobile device. For example, PCS (Personal Communication Service) telephone, cordless telephone, SIP (Session Initiation Protocol) telephone, WLL (Wireless Local Loop) station, PDA (Personal Digital Assistant), etc. .

2) A network device, such as a base station (e.g., an access point), may specifically refer to a device in the access network that communicates with the wireless terminal over one or more sectors over the air interface. The base station can be used to convert the received air frame to the IP packet as a router between the wireless terminal and the rest of the access network, wherein the remainder of the access network can include an Internet Protocol (IP) network. The base station can also coordinate attribute management of the air interface. For example, the base station may be an evolved base station (NodeB or eNB or e-NodeB, evolutional Node B) in a system such as LTE (Long Term Evolution) or LTE-A (LTE-Advanced). The invention is not limited.

3) MIMO (Multiple-Input Multiple-Output) technology, which uses multiple transmit and receive antennas at the transmitting end and the receiving end respectively, so that the signal passes through multiple antennas between the transmitting end and the receiving end. Transmit and receive to improve communication quality. It can make full use of space resources and achieve multiple transmission and reception through multiple antennas without increasing spectrum resources and antenna transmission power. In this case, the system channel capacity can be multiplied. Wherein, if the transmitting end is transmitted by one antenna and the receiving end is received by one antenna, it can be regarded as a first-class (stream, or layer) data transmission, for example, the transmitting end transmits with two antennas, and the receiving end receives with two antennas, It can be considered as a second-rate data transmission, and so on.

4) In the embodiment of the present invention, the reference signal may refer to the DMRS, or may also refer to other possible reference signals. In the introduction, only the DMRS is taken as an example. In the embodiment of the present invention, the configuration information corresponding to the reference signal is referred to as a state, that is, a state may be used to indicate a reference signal.

5) The terms "system" and "network" in the embodiments of the present invention may be used interchangeably. "Multiple" means two or more. "and/or", describing the association relationship of the associated objects, indicating that there may be three relationships, for example, A and/or B, which may indicate that there are three cases where A exists separately, A and B exist at the same time, and B exists separately. In addition, the character "/", unless otherwise specified, generally indicates that the contextual object is an "or" relationship.

First, the technical background of the present invention will be described.

Currently, the base station can allocate different DMRS configuration information (ie, status) to different terminals, and the base station can store multiple DMRS configuration information in a table, for example, the table is as follows:

Table 1

The left half of Table 1 corresponds to the case where one of the two code words of the transport block is available, and may also be referred to as the case where the transport block codeword is 1 (ie, codeword 0 is enabled, and codeword 1 is not enabled). The right half of Table 1 shows the case where both codewords of the transport block are available. It can also be called the case where the transport block codeword is 2 (ie, both codeword 0 and codeword 1 are enabled), here A transport block is a resource block used to transfer data. In Table 1, Value represents an encoded value, and Message represents DMRS configuration information corresponding to the encoded value. In addition, in the left half of Table 1, it can be seen that the reserved value (Reserved) when the code value is 7, that is, the corresponding DMRS configuration information has not been defined.

For example, for the case of one codeword indicated by the left half of Table 1: each code value corresponds to two or three of the transport layer (ports), port information (ports), and scrambling code sequence (nSCID). Combination of one. For example, an encoded value of 0 indicates that the number of streams is 1, the corresponding antenna port is 7, and the scrambling sequence is labeled as zero.

For example, for the left half of Table 1, if four terminals are respectively configured with DMRS configuration information corresponding to code values 0, 1, 2, and 3, the four terminals can form a 4-layer dedicated reference signal non-orthogonal MU ( Multi-User, multi-user) transmission, where non-orthogonal refers to a transport stream that is distinguished only by the scrambling sequence.

For example, if the coded value is 0 and the coded value is 1, the corresponding number of transmission layers and the antenna port are the same, and only the scrambling code sequence is different (the scrambling code sequence corresponding to the coded value 0 is marked as nSCID=0, and the scrambling code sequence corresponding to the coded value 1 is marked. If nSCID=1), if the DMRS configuration information corresponding to the coded value 1 and the coded value 1 is respectively allocated for the two terminals, the two terminals are non-orthogonal transmission.

Or, for example, the coded value 0 and the coded value 2, the corresponding number of transmission layers and the scrambling code sequence are the same, and the antenna ports are different (the antenna port corresponding to the coded value 0 is 7, and the antenna port corresponding to the code value 2 is 8), If the two terminals are respectively assigned DMRS configuration information corresponding to the code value 1 and the code value 2, the two terminals can implement a completely orthogonal MU transmission.

For example, for the right half of Table 1, if the DMRS configuration information corresponding to the coded value 0 and the coded value 1 is respectively configured for two terminals, each of the two terminals can be implemented by itself. 2 layers of orthogonal data transmission, but between these two terminals is non-orthogonal transmission.

It can be seen that the prior art can only support orthogonal data stream transmission of 2 layers of multi-users or non-orthogonal transmission of 4 layers of multi-users. On the one hand, data transmission limited to 2 layers limits the multi-user data transmission rate, which limits the spectrum efficiency of the system; on the other hand, 4-layer multi-user non-orthogonal transmission introduces additional inter-user interference and reduces data transmission. Rate, as well as system spectral efficiency.

Currently, in a three-dimensional MIMO (3D-MIMO) system, a vertical dimension is introduced, in which multi-user pairing is easier, and the probability of multi-user transmission increases. At the same time, the number of transmission layers for multi-user pairing increases accordingly. Therefore, the transmission methods in the prior art are not sufficient to match 3D-MIMO.

On the other hand, in 3D-MIMO or Massive MIMO (mass MIMO) systems, the number of antennas is also multiplied, which provides more spatial freedom, resulting in increased beamforming gain and more spatially identified granularity. fine. This feature also improves the pairing probability and number of pairs for multiple users.

The embodiments of the present invention fully consider the above problems, and believe that in order to support the application of multi-user multi-stream transmission in 3D-MIMO and Massive MIMO, and improve the spectrum efficiency of the system, it is necessary to support more multi-user pairing layers. Therefore, the embodiment of the present invention carries different states in the information indicating the reference signal and the number of data streams, and the state received by the signal receiving end (or terminal) may correspond to different OCC (Orthogonal Cover Code). The code length can also correspond to different OCC code sequences, and the reference signal determined by the signal receiving end is also a reference signal corresponding to the allocated state, so that multiple (for example, possibly at least three) signal receiving ends can be transmitted. Orthogonal transmission can be realized in data, which increases the number of transmission layers, reduces interference between terminals, increases data transmission rate, and improves system spectral efficiency.

The embodiments of the present invention are further described in detail below with reference to the accompanying drawings.

Referring to FIG. 1 , an embodiment of the present invention provides a first method for configuring a reference signal, which may be performed by a signal receiving end, where the signal receiving end may be a terminal, or may be a network device, such as a base station, which is not limited in the present invention. In the following description, the signal receiving end is a terminal as an example. The flow of the method is described below.

Step 101: Receive downlink control information, where the downlink control information includes information indicating a reference signal and a data flow number;

Step 102: Determine a reference signal according to information indicating a reference signal and a number of data streams;

Step 103: Obtain a channel estimate using the determined reference signal.

In this embodiment, the information indicating the reference signal and the number of data streams includes at least three states:

The first state includes: a data stream (layer) number of 1, a first antenna port, and a corresponding first OCC (Orthogonal Cover Code) code length;

Because the time-frequency resources corresponding to the two antenna ports are different, the terminals corresponding to the two antenna ports can be orthogonally transmitted. Therefore, the application scenario of the embodiment of the present invention is the time-frequency of the antenna ports. The resources are all the same. In this case, only orthogonal transmission of at most two terminals can be implemented in the prior art, and by using the technical solution provided by the present invention, orthogonal transmission of at least three terminals can be implemented.

Wherein, each state can be used to indicate a reference signal, and the information indicating the reference signal and the number of data streams can include multiple states. The various states may be stored in the signal transmitting end, the signal transmitting end may be, for example, a base station, or may be other devices, and various states may also be stored in the signal receiving end, and the signal receiving end may be, for example, a terminal. Or can be other settings Ready. The signal transmitting end and the signal receiving end can obtain various states in advance according to regulations or other standards.

Regardless of whether it is a signal transmitting end or a signal receiving end, when storing various states, the storage manner may be referred to, for example, Table 1, or other storage methods may be employed.

The first state, the second state, the third state, the fourth state, and the fifth state may each correspond to a case where one of the two code words of the transport block is available, that is, the transport block codeword 0 is enabled. The transport block codeword 1 is not enabled.

Optionally, in another embodiment of the present invention, the first OCC code length may correspond to at least four OCC code sequences.

For example, in an embodiment of the present invention, the first OCC code length may be 4, such that the first OCC code length corresponds to 4 OCC code sequences, respectively [1, 1, 1, 1], [1, - 1,1,-1], [1,1,-1,-1], and [1,-1,-1,1]. As long as the orthogonal codes corresponding to the states assigned to the two terminals are different, the two terminals can implement orthogonal transmission. Therefore, in the embodiment of the present invention, the first OCC code length is set to correspond to at least four OCC code sequences, so that by setting the first OCC code length, orthogonal transmission of four terminals can be supported, thus increasing transmission. The number of layers also reduces interference between terminals, increases data transmission rates, and increases system spectral efficiency.

Of course, in other embodiments, the first OCC code length may also be greater than 4, for example, may be 8, 16, etc., and may be set according to requirements and actual hardware conditions.

Optionally, in an embodiment of the present invention, the second OCC code length may be 2. When the OCC code length is 2, it can meet the requirements of the high-speed mobile terminal. In addition, the information indicating the reference signal and the number of data streams includes the OCC code length of 4 and the OCC code length of 2, in addition to supporting at least 3 In addition to user orthogonal transmission, it is also compatible with the configuration of old users (for example, users of the LTE/LTE-A system Rel-12 version). For example, the state in which the OCC code length is 2 is allocated to the old user, and the state in which the OCC code length is 4 is assigned to the new user, so as to prevent the old user from being unable to recognize the case where the OCC code length is 4.

Optionally, in another embodiment of the present invention, the time and frequency positions of the reference signal resources corresponding to the fifth antenna port and the first antenna port are the same.

The following examples are presented.

For example, in the information indicating the reference signal and the number of data streams, one of the two code words corresponding to the transport block is available:

The first state includes: the number of data streams is 1, the antenna port 7 and the corresponding OCC code length are 4;

The second state includes at least: the number of data streams is 1, the antenna port 8 and the corresponding OCC code length are 4;

The third state includes at least: the number of data streams is 1, the antenna port 11 and the corresponding OCC code length are 4;

The fourth state includes at least: the number of data streams is 1, the antenna port 13 and the corresponding OCC code length are 4;

The fifth state includes at least: the number of data streams is 1, the antenna port 7 and the corresponding OCC code length are 2.

In this embodiment, the first antenna port is 7, the second antenna port is 8, the third antenna port is 11, the fourth antenna port is 13, and the fifth antenna port is the same as the first antenna port number.

Optionally, in another embodiment of the present invention, any one of the at least three states further includes: scrambling code sequence information.

For example, continue to use the above example:

Then, for each state as exemplified above, the same scrambling code sequence may be corresponding, or different scrambling code sequences may be corresponding. E.g,

The first state includes at least: the number of data streams is 1, the antenna port 7 and the corresponding OCC code length are 4, and the first scrambling code sequence;

The second state includes at least: the number of data streams is 1, the antenna port 8 and the corresponding OCC code length are 4, and the first scrambling code sequence;

The third state includes at least: the number of data streams is 1, the antenna port 11 and the corresponding OCC code length are 4, and the first scrambling code sequence;

The fourth state includes at least: the number of data streams is 1, the antenna port 13 and the corresponding OCC code length are 4, a first scrambling code sequence;

The fifth state includes at least: the number of data streams is 1, the antenna port 7 and the corresponding OCC code length are 2, and the first scrambling code sequence.

Then, in this embodiment, the information indicating the reference signal and the number of data streams may further include other states, for example:

The thirteenth state includes at least: the number of data streams is 1, the antenna port 7 and the corresponding OCC code length are 4, and the second scrambling code sequence;

The fourteenth state includes at least: the number of data streams is 1, the antenna port 8 and the corresponding OCC code length are 4, and the second scrambling code sequence;

The fifteenth state includes at least: the number of data streams is 1, the antenna port 11 and the corresponding OCC code length are 4, and the second scrambling code sequence;

The sixteenth state includes at least: the number of data streams is 1, the antenna port 13 and the corresponding OCC code length are 4, and the second scrambling code sequence;

The seventeenth state includes at least: the number of data streams is 1, the antenna port 7 and the corresponding OCC code length are 2, and the second scrambling code sequence.

It can be seen that the thirteenth state and the first state are only different in the scrambling code sequence. Then, if the thirteenth state and the first state are respectively assigned to the two signal receiving ends, the two signal receiving ends can realize non-orthogonal transmission. Other states are also corresponding relationships, not enumerated.

By allocating different scrambling code sequences, embodiments of the present invention provide more states, and can support more terminals or more streams of data transmission.

In addition, as an example, the meaning of the state may include: when the signal receiving end receives a state, for example, the received first state, that is, the number of data streams is 1, the antenna port 7 and the corresponding OCC code length 4, the first interference Code sequence. The signal receiving end can be informed that the reference signal (for example, DMRS) sent by the signal transmitting end to the signal receiving end corresponds to the antenna port 7, and the first scrambling code sequence is used to mark the corresponding scrambling code sequence to be scrambled, and corresponding to the reference signal. The superposed OCC code has a length of 4 orthogonal spreading codes. Thereby, the signal receiving end can receive the reference signal according to the first state and perform channel estimation according to the reference signal.

Optionally, in another embodiment of the present invention, in order to save the overhead of configuring signaling, the number of states included in the information indicating the reference signal and the number of data streams may be limited, for example, may be specified as eight, 16 , or 32, and so on.

Based on the previous embodiment, preferably, in another embodiment of the present invention, the information indicating the number of reference signals and the number of data streams corresponds to the state of the case where one of the two code words of the transport block is available. It can be eight. That is, under the condition that the transport block codeword 0 for transmitting data and the transport block codeword 1 are not enabled, the information indicating the reference signal and the number of data streams may include eight states.

As described above, the data stream number is 1. In another embodiment of the present invention, the information indicating the reference signal and the number of data streams may further include a state in which the number of data streams is greater than one.

Optionally, in another embodiment of the present invention, the state in which the number of data streams is greater than one includes a second OCC code length. That is, the state in which the number of data streams is greater than 1 may correspond to the second OCC code length.

Optionally, in another embodiment of the present invention, the second OCC code length is 2 or 4 or 8 or the like.

Optionally, in another embodiment of the present invention, the number of data streams in which the number of data streams is greater than one is 2, 3, and 4, respectively.

Optionally, in another embodiment of the present invention, corresponding to the condition that the transport block codeword 0 is enabled and the transport block codeword 1 is not enabled, if the information indicating the reference signal and the number of data streams includes eight states, Then these 8 states can be as follows:

The first state includes: the number of data streams is 1, the first antenna port and the corresponding OCC code length are 4;

The second state includes: the number of data streams is 1, the second antenna port, and the corresponding OCC code length is 4;

The third state includes at least: the number of data streams is 1, the third antenna port, and the corresponding OCC code length is 4;

The fourth state includes at least: the number of data streams is 1, and the fourth antenna port and the corresponding OCC code length are 4;

The fifth state includes: the number of data streams is 1, the fifth antenna port, and the corresponding OCC code length is 2.

The sixth state includes at least: the number of data streams is 2, the first antenna port and the second antenna port, and the corresponding OCC code length is 2;

Optionally, in another embodiment of the present invention, the time and frequency positions of the resources of the reference signal corresponding to the fifth antenna port and the first antenna port or the second antenna port are the same.

Optionally, in another embodiment of the present invention, the time and frequency position of the resource of the reference signal corresponding to the sixth antenna port and the seventh antenna port and the time of the resource of the reference signal corresponding to the first antenna port are The frequency position is different.

Then, in another embodiment of the present invention, if the transport block codeword 0 for transmitting data is enabled and the transport block codeword 1 is not enabled, if the information indicating the reference signal and the number of data streams includes 8 The status, then one of the possible indications of the reference signal and the number of data streams includes the eight states shown in Table 2:

Table 2

Where Value is the value, that is, the encoded value, and Message is the information, that is, the state. Table 1 is only an example. In practical applications, the correspondence between Value and Message is not limited in the present invention. For example, in another embodiment of the present invention, Table 2 can also be expressed as:

Table 2

In the table 2, the fifth antenna port and the first antenna port are the same antenna port as an example.

As can be seen from Table 2, a value of 7 is also set, which is equivalent to utilizing the reserved bits in the prior art.

Optionally, in another embodiment of the present invention, the state in which the number of data streams is greater than one may include the first OCC code length. That is, the state in which the number of data streams is greater than one may also correspond to the first OCC code length.

Optionally, in another embodiment of the present invention, the data flow is greater than the data flow corresponding to the state of 1 The numbers are 2, 3, and 4.

Optionally, in another embodiment of the present invention, corresponding to the condition that the transport block codeword 0 is enabled and the transport block codeword 1 is not enabled, if the data stream number is greater than 1, the state corresponds to the first OCC code length. And the information indicating the reference signal and the number of data streams may include at least 7 states in the following states:

The sixth state includes at least: the number of data streams is 2, the first antenna port and the second antenna port, and the corresponding OCC code length is 4;

The seventh state includes at least: the number of data streams is three, the first antenna port, the second antenna port, and the third antenna port, and the corresponding OCC code length is 4;

The eighth state includes: the number of data streams is 4, the first antenna port, the second antenna port, the third antenna port, and the fourth antenna port, and the corresponding OCC code length is 4;

Optionally, in another embodiment of the present invention, the time and frequency of the resource of the reference signal corresponding to the fifth antenna port and the time and frequency of the resource of the reference signal corresponding to the first antenna port or the second antenna port The location is the same.

Then, in another embodiment of the present invention, if the transport block codeword 0 for transmitting data is enabled and the transport block codeword 1 is not enabled, if the information indicating the reference signal and the number of data streams includes 8 The status, then one of the possible indications of the reference signal and the number of data streams includes the eight states shown in Table 3:

table 3

In Table 3, the fifth antenna port and the first antenna port are the same antenna port as an example.

Table 3 is only an example. In practical applications, the correspondence between Value and Message is not limited in the present invention. For example, in another embodiment of the present invention, Table 3 can also be expressed as:

table 3

Similarly, as can be seen from Table 3 in the above two examples, a value of 7 is also set, which is equivalent to utilizing the reserved bits in the prior art.

Optionally, in another embodiment of the present invention, if the transport block codeword 0 for transmitting data is enabled, and the transport block codeword 1 is not enabled, if the reference signal and the number of data streams are indicated The information includes 8 states, and the 8 states indicating a possible information indicating the reference signal and the number of data streams are as shown in Table 4:

Table 4

The code value 7 can be reserved, and the OCC code length is 4. Table 4 is just an example, in In practical applications, the correspondence between Value and Message is not limited in the present invention.

Referring to FIG. 2, based on the same inventive concept, an embodiment of the present invention provides a second reference signal configuration method, which may be performed by a signal receiving end, where the signal receiving end may be a terminal, or may be a network device, such as a base station. The invention is not limited. In the following description, the signal receiving end is a terminal as an example. The flow of this method is described below.

Step 201: Receive downlink control information, where the downlink control information includes information indicating a reference signal and a data flow number, where the information indicating the reference signal and the data flow number includes at least two states, and the OCC code lengths corresponding to the at least two states are different. ;

Step 202: Determine a reference signal according to information indicating a reference signal and a number of data streams;

Step 203: Obtain a channel estimate by using the determined reference signal.

Optionally, in another embodiment of the present invention, if the information indicating the reference signal and the number of data streams includes two states, the OCC code lengths corresponding to the two states are respectively the first OCC code length and the second OCC code. long.

Optionally, in another embodiment of the present invention, for example, the first OCC code length is 4.

Optionally, in another embodiment of the present invention, for example, the second OCC code length is 2.

When the OCC code length is 2, it can meet the requirements of the high-speed mobile terminal. In addition, the information indicating the reference signal and the number of data streams includes the OCC code length of 4 and the OCC code length of 2, in addition to supporting at least 3 In addition to user orthogonal transmission, it is also compatible with the configuration of new users and old users (for example, users of the LTE/LTE-A system Rel-12 version). For example, the state in which the OCC code length is 2 is allocated to the old user, and the state in which the OCC code length is 4 is assigned to the new user, so as to prevent the old user from being unable to recognize the case where the OCC code length is 4.

Optionally, in another embodiment of the present invention, for example, the second OCC code length may also be greater than 2, for example, may be 4, or 8, or the like.

Optionally, in another embodiment of the present invention, when the transport block codeword 0 for transmitting data is enabled, and the transport block codeword 1 is not enabled, the information indicating the reference signal and the number of data streams includes 8 states.

Optionally, in another embodiment of the present invention, in the information indicating the reference signal and the number of data streams, the rank corresponding to the state corresponding to the first OCC code length may be 1.

Optionally, in another embodiment of the present invention, in the information indicating the reference signal and the number of data streams, the rank corresponding to the state corresponding to the second OCC code length may be any one of 1, 2, 3, or 4. .

The rank here may refer to the number of transmission layers (that is, the number of data streams), for example, the rank is 1, which can be understood as the number of data streams is 1, the rank is 2, and the number of data streams is 2, and so on.

For example, in another embodiment of the present invention, if the transport block codeword 0 for transmitting data is enabled and the transport block codeword 1 is not enabled, if the information indicating the reference signal and the number of data streams includes 8 The status, then a possible indication of the reference signal and the number of data streams includes eight states as shown in Table 5:

table 5

Table 5 is only an example. In practical applications, the correspondence between Value and Message is not limited in the present invention.

It can be seen that, in Table 5, the state corresponding to the coded value 0 includes the first OCC code length, and the state corresponding to the other coded values includes the second OCC code length.

Table 5 is only an example. In another embodiment of the present invention, any one or more of the encoded value 0-encoded value 3 may correspond to any one or more of the first OCC code length and the encoded value 0-6. It can correspond to the second OCC code length. Of course, one code value can only correspond to one OCC code length. For example, if the code value 0 corresponds to the first OCC code length, it cannot correspond to the second OCC code length. As long as it is ensured that at least one state with a rank of 1 in the information indicating the reference signal and the number of data streams corresponds to the first OCC code length, and that at least one state in the information indicating the reference signal and the number of data streams corresponds to the second OCC code It can be long, and the rest of the invention is not limited.

For example, in another embodiment of the present invention, if the transport block codeword 0 for transmitting data is enabled and the transport block codeword 1 is not enabled, if the information indicating the reference signal and the number of data streams includes 8 For each state, another possible indication of the reference signal and the number of data streams includes eight states as shown in Table 6:

Table 6

Table 6 is only an example. In practical applications, the correspondence between Value and Message is not limited in the present invention.

It can be seen that, in Table 6, the state corresponding to the code value 7 includes the first OCC code length, and the state corresponding to the other code values includes the second OCC code length. The information indicating the reference signal and the number of data streams exemplified in Table 6 utilizes reserved bits (encoded value 7) in the prior art. Certainly, in the actual application, the reserved bit may also correspond to the second OCC code length, and any one or more of the coded value 0-encoded value 3 needs to correspond to the second OCC code length. Similarly, it is ensured that at least one state with a rank of 1 in the information indicating the number of reference signals and the number of data streams corresponds to the first OCC code length, and at least one state corresponding to the information indicating the number of reference signals and the number of data streams is guaranteed. The second OCC code length is sufficient, and the rest of the invention is not limited.

The above describes the case where the transport block codeword 0 is enabled and the transport block codeword 1 is not enabled. The following describes the case where the transport block codewords 0 and 1 are enabled.

According to the technical solution provided by the embodiments of the present invention, at least three orthogonal reference signals can be obtained, and the performance of channel estimation at the signal receiving end is improved. For example, under the condition that the transport block codeword 0 is enabled and the transport block codeword 1 is enabled, the first state, the second state, the third state, and the fourth state are respectively assigned to the two signal receiving ends, so that the four The reference signals between the signal receiving ends are orthogonal to each other, and there is no interference between the reference signals, so that the signal receiving end can obtain better channel estimation, and improve the data transmission rate and spectrum utilization.

In addition, according to the technical solution provided by the embodiments of the present invention, in the case that the number of data streams is 1, in addition to configuring the first OCC code length, the second OCC code length is configured, so that one side can be compatible with LTE/LTE- On the other hand, for example, for a terminal in a high-speed mobile scenario, the second OCC code length can be configured to improve the channel estimation accuracy of the signal receiving end, and the first OCC code length can be configured for the signal receiving end in the low-speed mobile scenario. To increase the number of multi-user reuse.

For example, under the condition that the transport block codeword 0 is enabled and the transport block codeword 1 is not enabled, the information indicating the reference signal and the number of data streams may be included in a total of eight states, and the eight states may be simultaneously packaged. There are 4 orthogonal reference signals corresponding to the number of data streams of 1, that is, at least 4 layers of multi-user orthogonal transmission can be realized under the premise of saving system overhead.

Referring to FIG. 3, based on the same inventive concept, an embodiment of the present invention provides a third reference signal configuration method, which may be performed by a signal receiving end, where the signal receiving end may be a terminal, or may be a network device, such as a base station. The invention is not limited. In the following description, the signal receiving end is a terminal as an example. . The flow of the method is described below.

Step 301: Receive downlink control information, where the downlink control information includes information indicating a reference signal and a data flow number.

Step 302: Determine a reference signal according to the information indicating the reference signal and the number of data streams;

Step 303: Obtain a channel estimate by using the determined reference signal.

In this embodiment, the information indicating the reference signal and the number of data streams includes the following states:

The tenth state includes at least: the number of data streams is 2, the tenth antenna port, the eleventh antenna port, and the corresponding first OCC code length.

Optionally, the first OCC code length may also be 2.

It can be understood that the condition that the transport block codeword 0 is enabled, and the transport block codeword 1 is not enabled, and the conditions in which the transport block codewords 0 and 1 are enabled can respectively correspond to the indication reference signal and the number of data streams. information. Or it may be understood that the information indicating the reference signal and the number of data streams may include a codeword corresponding to the transport block codeword in addition to the state corresponding to the condition that the transport block codeword 0 is enabled and the transport block codeword 1 is not enabled. The state of the condition that both 0 and 1 are enabled.

Optionally, in another embodiment of the present invention, the time and frequency positions of the resources of the reference signals corresponding to the eighth antenna port, the ninth antenna port, the tenth antenna port, and the eleventh antenna port are the same, and corresponding The first OCC code length is 4.

Optionally, in another embodiment of the present invention, the OCC sequences corresponding to the eighth antenna port, the ninth antenna port, the tenth antenna port, and the eleventh antenna port are different.

Optionally, in another embodiment of the present invention, the eighth antenna port corresponds to the ninth antenna port. The time and frequency positions of the resources of the reference signal are the same, and the time and frequency positions of the resources of the reference signal corresponding to the tenth antenna port and the eleventh antenna port are the same, but the reference signals corresponding to the eighth antenna port and the tenth antenna port are The time and frequency positions of the resources are different, and the corresponding first OCC code length is 2.

The application scenario of the embodiment of the present invention is that the time-frequency resources of the antenna ports are the same, the orthogonal layer 4 transmission is implemented by using the OCC code, or the orthogonal layer 4 transmission is implemented by using different time and frequency resources. In the prior art, only two layers of orthogonal transmission of a single terminal can be implemented, and by adopting the technical solution provided by the present invention, multi-layer orthogonal transmission of at least two signal receiving ends can be realized.

Then, corresponding to the case where the transport block code words 0 and 1 are both enabled, if the ninth state and the tenth state are respectively assigned to the two signal receiving ends, since both states correspond to the first OCC code length, this The two signal receiving ends are also capable of orthogonal transmission.

The following examples are presented.

For example, in the information indicating the reference signal and the number of data streams, the case corresponding to the transmission block code words 0 and 1 is enabled:

The ninth state includes at least: the number of data streams is 2, the antenna port 7, the antenna port 8, and the OCC code length is 4;

The tenth state includes at least: the number of data streams is 2, the antenna port 11, the antenna port 13, and the OCC code length is 4.

In this example, the eighth antenna port is 7, the ninth antenna port is 8, the tenth antenna port is 11, and the eleventh antenna port is 13.

As another embodiment of the present invention, for example, in the information indicating the reference signal and the number of data streams, the case corresponding to the transmission block code words 0 and 1 is enabled:

The twentieth state includes at least: the number of data streams is 2, the antenna port 7, the antenna port 8, and the OCC code length is 2;

The twenty-first state includes at least: the number of data streams is 2, the antenna port 9, the antenna port 10, and the OCC code length is 2.

In this embodiment, the eighth antenna port is 7, the ninth antenna port is 8, and the tenth antenna port is 9. The eleventh antenna port is 10.

Optionally, in another embodiment of the present invention, the information included in the information indicating the reference signal and the number of data streams further includes: scrambling code sequence information.

For example, continue to use the above example:

The ninth state includes at least: the number of data streams is 2, the antenna port 7, the antenna port 8, the OCC code length is 4, and the first scrambling code sequence;

The tenth state includes at least: the number of data streams is 2, the antenna port 11, the antenna port 13, the OCC code length is 4, and the first scrambling code sequence.

The eighteenth state includes at least: two-stream data transmission, antenna port 7, antenna port 8, OCC code length of 4, and second scrambling code sequence;

The nineteenth state includes at least: two-stream data transmission, antenna port 11, antenna port 13, OCC code length of 4, and second scrambling code sequence.

It can be seen that the eighteenth state and the ninth state are only different in the scrambling code sequence. Then, if the eighteenth state and the ninth state are respectively assigned to the two signal receiving ends, the two signal receiving ends can realize non-orthogonal transmission. The nineteenth state and the tenth state are also such corresponding relationships, not to be explained.

As described above, in order to save the overhead of configuration signaling, the number of states included in the information indicating the number of reference signals and the number of data streams may be limited, for example, it may be specified as 8, 16, or 32, and the like.

Then, based on the embodiment, preferably, in another embodiment of the present invention, in the information indicating the reference signal and the number of data streams, the number of states corresponding to the case where both codewords of the transport block are available may be 8 One. That is, under the condition that both the transport block code words 0 and 1 for transmitting data are enabled, the information indicating the reference signal and the number of data streams may include 8 states.

Optionally, in another embodiment of the present invention, the information indicating the reference signal and the number of data streams may further include the following states:

The twelfth state includes at least: a data stream number of four, a twelfth antenna port, a thirteenth antenna port, a fourteenth antenna port, and a fifteenth antenna port, corresponding to the second OCC code length.

Optionally, in another embodiment of the present invention, the second OCC code length may be 2 or 4.

Optionally, in another embodiment of the present invention, the time and frequency positions of the resources of the reference signals corresponding to the twelfth antenna port, the thirteenth antenna port, the fourteenth antenna port, and the fifteenth antenna port are the same.

Optionally, in another embodiment of the present invention, the resources of the reference signals corresponding to the eighth antenna port, the ninth antenna port, the twelfth antenna port, and the thirteenth antenna port have the same time and frequency position.

Optionally, in another embodiment of the present invention, the information indicating the reference signal and the number of data streams may further include a state in which the number of data streams is greater than 4.

For example, the information indicating the reference signal and the number of data streams may further include: the thirteenth state includes at least: the number of data streams is 5, the twelfth antenna port, the thirteenth antenna port, the fourteenth antenna port, and the fifteenth antenna The port and the sixteen antenna port, and the corresponding OCC code length is 4.

Optionally, the time and frequency positions of the resources of the reference signals corresponding to the twelfth antenna port, the thirteenth antenna port, and the sixteenth antenna port are the same.

Optionally, the time and frequency positions of the resources of the reference signal corresponding to the fourteenth antenna port and the fifteenth antenna port are the same.

Optionally, in another embodiment of the present invention, the OCC code length corresponding to the state in which the number of data streams is greater than 4 is 4.

Optionally, in another embodiment of the present invention, the number of data streams in which the number of data streams is greater than 4 is 5, 6, 7, and 8, respectively.

Then, in another embodiment of the present invention, the transport block code words 0 and 1 for transmitting data are both Under the enabled condition, if the information indicating the reference signal and the number of data streams includes 8 states, the eight states of a possible information indicating the reference signal and the number of data streams are as shown in Table 7:

Table 7

Table 7 is only an example. In practical applications, the correspondence between Value and Message is not limited in the present invention.

In another embodiment of the present invention, under the condition that the transport block codewords 0 and 1 for transmitting data are both enabled, if the information indicating the reference signal and the number of data streams includes 8 states, then a possible indication The eight states of the reference signal and the number of data streams are as shown in Table 8:

Table 8

Or, under the condition that the transport block code words 0 and 1 for transmitting data are both enabled, if the information indicating the reference signal and the number of data streams includes 8 states, one possible indication signal and number of data streams The eight states included in the information are shown in Table 9:

Table 9

Table 8 and Table 9 are only examples. In practical applications, the correspondence between Value and Message is not limited in the present invention.

With the technical solutions provided by the various embodiments of the present invention, at least four layers of orthogonal reference signals can be obtained to improve the performance of the terminal channel estimation. For example, under the condition that the transport block codeword 0 is enabled and the transport block codeword 1 is enabled, the ninth state and the tenth state are respectively allocated to the two terminals, so that the reference signals between the two terminals are orthogonal to each other. There is no interference between the reference signals to facilitate better channel estimation for the terminal.

Referring to FIG. 4, based on the same inventive concept and the foregoing embodiments, the embodiment of the present invention provides a fourth reference signal configuration method, which may be performed by a signal sending end, where the signal sending end may be a terminal, or may be a network device. For example, it is a base station, and the present invention is not limited. In the following description, the signal transmission end is a network device as an example. The flow of the method is described below.

Step 401: Send downlink control information, where the downlink control information includes information indicating a reference signal and a data flow number.

Step 402: Send a reference signal according to the information indicating the reference signal and the number of data streams, and the reference signal is used by the signal receiving end to obtain a channel estimation.

For example, if the network device is a base station, the base station can select a corresponding state for the terminal and notify the terminal. The status selected by the base station for different terminals may be different at the same time. For example, the base station may select a state for the terminal according to the related information fed back by the terminal, or the base station may also select a state for the terminal according to the current network condition, and the like, and the present invention does not limit how the base station selects the state for the terminal.

Optionally, in another embodiment of the present invention, the first antenna port, the second antenna port, the third antenna port, and the fourth antenna port have different OCC code sequences.

Optionally, in another embodiment of the present invention, the first OCC code length is 4, and the second OCC code length is 2.

Optionally, in another embodiment of the present invention, the information indicating the reference signal and the number of data streams further includes a state in which the number of data streams is greater than one.

Optionally, in another embodiment of the present invention, the state in which the number of data streams is greater than one includes a second OCC code length.

Optionally, in another embodiment of the present invention, the eight states included in the information indicating the reference signal and the number of data streams are:

The first state includes at least: the number of data streams is 1, the first antenna port, and the corresponding OCC code length Is 4;

Optionally, in another embodiment of the present invention, the status of the information indicating the reference signal and the number of data streams may be referred to Table 2.

Optionally, in another embodiment of the present invention, the information indicating the reference signal and the number of data streams includes at least seven states in the following states:

The method introduced in the flow of FIG. 4 is a method corresponding to the previous embodiments (especially the method described in the flow of FIG. 1), and the implementation process can refer to each other, and the repeated content is not introduced.

Referring to FIG. 5, based on the same inventive concept, an embodiment of the present invention provides a fifth reference signal configuration method, where the method may be performed by a signal sending end, and the signal sending end may be a terminal, or may be a network device, such as a base station. The invention is not limited. In the following description, the signal transmission end is a network device as an example. The flow of the method is described below.

Step 501: Send downlink control information, where the downlink control information includes indication reference signals and data flows. Information of the number; wherein the information indicating the reference signal and the number of data streams includes at least two states, and the OCC code lengths corresponding to the at least two states are different;

Step 502: Send a reference signal according to the information indicating the reference signal and the number of data streams, and the reference signal is used by the signal receiving end to obtain a channel estimation.

The method introduced in the flow of FIG. 5 is a method corresponding to the previous embodiments (especially the method described in the flow of FIG. 2), and the implementation process can refer to each other, and the repeated content is not introduced.

Referring to FIG. 6A, based on the same inventive concept, an embodiment of the present invention provides a sixth reference signal configuration method, which may be performed by a signal sending end, where the signal sending end may be a terminal, or may be a network device, such as a base station. The invention is not limited. In the following description, the signal transmission end is a network device as an example. The flow of the method is described below.

Step 6A01: Send downlink control information, where the downlink control information includes information indicating a reference signal and a number of data streams;

Step 6A02: Send the reference signal according to the information indicating the reference signal and the number of data streams, and the reference signal The number is used for the signal receiving end to obtain channel estimation.

Wherein, the information indicating the reference signal and the number of data streams includes the following states:

Optionally, in another embodiment of the present invention, the time and frequency positions of the resources of the reference signal corresponding to the eighth antenna port and the ninth antenna port are the same, and the reference corresponding to the tenth antenna port and the eleventh antenna port The time and frequency positions of the resources of the signal are the same, and the time and frequency positions of the resources of the reference signal corresponding to the eighth antenna port and the tenth antenna port are different, and the corresponding first OCC code length is 2.

Optionally, in another embodiment of the present invention, under the condition that the transport block codeword 0 for transmitting data and the transport block codeword 1 are enabled, the information indicating the reference signal and the number of data streams includes 8 Status.

Optionally, in another embodiment of the present invention, the information indicating the reference signal and the number of data streams further includes the following states:

Optionally, in another embodiment of the present invention, the second OCC code length is 2 or 4.

Optionally, in another embodiment of the present invention, the twelfth antenna port, the thirteenth antenna port, The time and frequency positions of the resources of the reference signals corresponding to the fourteenth antenna port and the fifteenth antenna port are the same.

Optionally, in another embodiment of the present invention, the information indicating the reference signal and the number of data streams further includes a state in which the number of data streams is greater than 4.

The method introduced in the flow of FIG. 6A is a method corresponding to the previous embodiments (especially the method described in the flow of FIG. 3), and the implementation process can refer to each other, and the repeated content is not introduced.

As another embodiment of the present invention, in the case where the number of antennas is further increased, for example, base station 12 antenna or 16 antenna, user side 4 antenna, etc., MU-MIMO (Multi-User Multiple-Input Multiple-Output, multi-user) When multiple inputs and multiple outputs are paired, there may be some user layer 3 or layer 4 data transmission. When performing MU-MIMO transmission in the original system, only one layer or two layers of transmission per user is supported. Therefore, the embodiment of the present invention further provides the following solution to solve the problem of how to support data transmission of one user greater than two layers in MU-MIMO pairing.

Referring to FIG. 6B, based on the same inventive concept and the foregoing embodiments, an embodiment of the present invention provides a seventh reference signal configuration method, which may be performed by a signal receiving end, where the signal receiving end may be a terminal, or may be a network device. For example, it is a base station, and the present invention is not limited. In the following description, the signal receiving end is a terminal as an example. The flow of the method is described below.

Step 6B01: Receive downlink control information, where the downlink control information includes information indicating a reference signal and a data flow number;

Step 6B02: Determine the reference signal according to the information indicating the reference signal and the number of data streams;

Step 6B03: Obtain a channel estimation by using the determined reference signal;

The time and frequency positions of the resources of the reference signal corresponding to the seventeenth antenna port, the eighteenth antenna port, and the nineteenth antenna port are the same.

Referring to FIG. 6C, based on the same inventive concept and the foregoing embodiments, an embodiment of the present invention provides an eighth reference signal configuration method, which may be performed by a signal sending end, where the signal sending end may be a terminal, or may be a network device. For example, it is a base station, and the present invention is not limited. In the following description, the signal transmission end is a network device as an example. The flow of the method is described below.

Step 6C01: Send downlink control information, where the downlink control information includes information indicating a reference signal and a data flow number;

Step 6C02: Send a reference signal according to the information indicating the reference signal and the number of data streams, where the reference signal is used by the terminal to obtain a channel estimation;

6B and FIG. 6C are two corresponding processes, and the content can be referred to each other. For example, it can be understood that the signal receiving end in FIG. 6B receives the reference signal sent by the signal transmitting end in FIG. 6C. Therefore, the schemes in FIGS. 6B and 6C are described together, that is, the schemes described below can be applied to both the process of FIG. 6B and the process of FIG. 6C.

Optionally, in another embodiment of the present invention, the first OCC code length is 4.

Optionally, in another embodiment of the present invention, the sequence of OCC codes corresponding to the seventeenth antenna port, the eighteenth antenna port, and the nineteenth antenna port are different.

Optionally, in another embodiment of the present invention, the status further includes a scrambling code ID (Identity) or scrambling code sequence information.

For example, the twenty-second state includes at least: a data stream number of three, a seventeenth antenna port, an eighteenth antenna port, a nineteenth antenna port, and a corresponding first OCC code length, and a scrambling code ID (n _SCID) ) is 0. Of course, just to give an example, the scrambling code ID can also be other values.

Optionally, in another embodiment of the present invention, the codeword 0 corresponding to the state in which the data stream is 3 is enabled, and the codeword 1 is enabled.

Optionally, in another embodiment of the present invention, the codeword 0 corresponding to the state in which the data stream is 3 is enabled, and the codeword 1 is not enabled.

The time and frequency positions of the resources of the reference signal corresponding to the seventeenth antenna port and the eighteenth antenna port are the same, and the time of the resource of the reference signal corresponding to the seventeenth antenna port and the nineteenth antenna port The frequency position is different.

Optionally, in another embodiment of the present invention, the second OCC code length is 2.

Optionally, in another embodiment of the present invention, the second OCC code length is 4.

The twenty-fourth state includes at least: a data stream number of four, a seventeenth antenna port, an eighteenth antenna port, a nineteenth antenna port, and a twentieth antenna port, and a corresponding third OCC code length; wherein The time and frequency positions of the resources of the reference signals corresponding to the seventeenth antenna port and the eighteenth antenna port are the same.

Optionally, in another embodiment of the present invention, the time and frequency positions of the resources of the reference signals corresponding to the seventeenth antenna port, the eighteenth antenna port, and the nineteenth antenna port are the same.

Optionally, in another embodiment of the present invention, the time and frequency positions of the resources of the reference signal corresponding to the seventeenth antenna port, the eighteenth antenna port, the nineteenth antenna port, and the twentieth antenna port are the same. .

Optionally, in another embodiment of the present invention, the state in which the number of data streams is 4 further includes a scrambling code ID or a scrambling code sequence information.

Optionally, in another embodiment of the present invention, the third OCC code length is 2 or 4.

For example, the information indicating the reference signal and the number of data streams includes the following states:

State 1 includes at least three data streams, antenna port 1, antenna port 2, and antenna port 3, and a corresponding first OCC code length;

State 2 includes at least three data streams, antenna port 4, antenna port 5 and antenna port 6, and a corresponding second OCC code length;

The first OCC code length is 4, and the second OCC code length is 2.

Optionally, the codeword 0 corresponding to the state is enabled, and the codeword 1 is enabled.

Optionally, in another embodiment of the present invention, the time and frequency positions of the resources of the reference signals corresponding to the antenna port 1, the antenna port 2, the antenna port 3, the antenna port 4, and the antenna port 5 are the same.

For another example, the information indicating the reference signal and the number of data streams may include the following states:

State 1 includes at least 1, the number of data streams is 1, antenna port 1, and a corresponding first OCC code length;

State 2 includes at least 1, the number of data streams is 1, antenna port 2, and a corresponding first OCC code length;

The state 3 includes at least, the number of data streams is 1, the antenna port 3, and the corresponding first OCC code length;

The state 4 includes at least, the number of data streams is 1, the antenna port 4, and the corresponding first OCC code length;

The state 5 includes at least, the number of data streams is 1, the antenna port 5, and the corresponding second OCC code length;

The state 6 includes at least, the number of data streams is 1, the antenna port 6, and the corresponding second OCC code length;

State 7 includes at least 2, a data stream number of 2, an antenna port 7 and an antenna port 8, and a corresponding second OCC code length;

The time and frequency of the reference signal resources corresponding to antenna port 1, antenna port 2, antenna port 3, antenna port 4, antenna port 5, antenna port 6, antenna port 7, and antenna port 8. The location is the same.

The first OCC code length is 4, and the second OCC code length is 2.

Optionally, the state corresponds to codeword 0 enabling, and codeword 1 is not enabled.

The following examples are presented.

As an implementation example,

For example, the twenty-second state corresponding to the number of data streams is at least: the number of data streams is 3, the antenna ports are 7, 8, 11, and the corresponding OCC code length is 4.

For example, the twenty-second state corresponding to the number of data streams is at least: the number of data streams is 3, the antenna ports are 7, 8, and 13, and the corresponding OCC code length is 4.

For example, the twenty-second state corresponding to the number of data streams is at least: the number of data streams is 3, the antenna ports are 9, 10, and 12, and the corresponding OCC code length is 4.

For example, the twenty-third state corresponding to the number of data streams is at least: the number of data streams is 3, the antenna ports are 7, 8, and 9, and the corresponding OCC code length is 2.

For example, the twenty-third state corresponding to the number of data streams is at least: the number of data streams is 3, the antenna ports are 7, 8, and 9, and the corresponding OCC code length is 4.

For example, the twenty-fourth state in which the number of data streams is 4 includes: the number of data streams is 4, and the antenna ports 7, 8, 9, and 11, and the corresponding OCC code length is 4.

For example, the twenty-fourth state in which the number of data streams is 4 includes: the number of data streams is 4, the antenna ports 7, 8, 9, 10, and the corresponding OCC code length is 4.

For example, the twenty-fourth state in which the number of data streams is 4 includes: the number of data streams is 4, the antenna ports 7, 8, 11, and 13, and the corresponding OCC code length is 4.

For example, under the condition that the transport block codeword 0 for transmitting data is enabled and the codeword 1 is not enabled, if the information indicating the reference signal and the number of data streams includes 8 states, then one possible indication reference signal and The eight states of the data flow number information are shown in Table 10:

Table 10

It should be noted that this is just an example, where the correspondence between values and states can be different. In addition, the state corresponding to the state 7 may be vacant or other states, for example, 2layer, port 7-8, and the corresponding OCC code length is 4.

Or, for example, under the condition that the transport block codeword 0 for transmitting data is enabled and the codeword 1 is enabled, if the information indicating the reference signal and the number of data streams includes 8 states, then one possible indication reference signal and The eight states of the data flow number information are shown in Table 11:

Table 11

It should be noted that the above are just examples, and the correspondence between values and states may be different. In addition, the state corresponding to the state 7 may be vacant, or may be other states, for example: 4layer, port 7, 8, 11, 13, and the corresponding OCC code length is 4.

The device in the embodiment of the present invention is described below with reference to the accompanying drawings.

Referring to FIG. 7 , based on the same inventive concept and the foregoing embodiments, an embodiment of the present invention provides a signal receiving end, where the signal receiving end may include a receiving module 701 and a processing module 702.

The receiving module 701 is configured to receive downlink control information, where the downlink control information includes information indicating a reference signal and a data flow number;

The processing module 702 is configured to determine a reference signal according to the information indicating the reference signal and the number of data streams;

The processing module 702 is further configured to obtain a channel estimate by using the determined reference signal.

The signal receiving end can be understood as being the same signal receiving end as the signal receiving end as described in the previous method section (especially the same signal receiving end as the signal receiving end described in the flow of FIG. 1), and therefore, regarding other corresponding contents. For example, for the description of the status in the information indicating the reference signal and the number of data streams, reference may be made to the description of the method part as before (in particular, the description in the flow of FIG. 1), and no further description is provided.

Optionally, based on the same inventive concept and the foregoing embodiments, the embodiment of the present invention provides a signal receiving end, and the structure of the signal receiving end may refer to the structure of FIG. 7. In the terminal,

The receiving module 701 is configured to receive downlink control information, where the downlink control information includes information indicating a reference signal and a data flow number, where the information indicating the reference signal and the data flow number includes at least two states, and the OCC corresponding to at least two states Different code lengths;

The processing module 702 is configured to determine the reference signal according to the information indicating the reference signal and the number of data streams;

The signal receiving end can be understood as being the same signal as the signal receiving end as described in the previous method section. The receiving end (in particular, the signal receiving end described in the flow of FIG. 2 is the same signal receiving end), and therefore, regarding other corresponding contents, for example, an introduction to the status in the information indicating the reference signal and the number of data streams, Refer to the description of the previous method section (especially refer to the description in the flow of Figure 2), not to repeat.

Optionally, based on the same inventive concept and the foregoing embodiments, the embodiment of the present invention provides a signal receiving end, and the structure of the signal receiving end may continue to refer to the structure of FIG. 7. In the terminal,

The signal receiving end can be understood as being the same signal receiving end as the signal receiving end as described in the previous method section (especially the same signal receiving end as the signal receiving end described in the flow of FIG. 3), and therefore, regarding other corresponding contents. For example, for the description of the status in the information indicating the reference signal and the number of data streams, reference may be made to the description of the method part as before (in particular, the description in the flow of FIG. 3), and no further description is provided.

Based on the same inventive concept and the foregoing embodiments, the embodiment of the present invention provides a signal sending end, where the signal sending end may include a sending module. Of course, the signal sending end may further include other modules in the existing signal sending end. For example, the signal transmitting end may further include a processing module or the like.

The sending module is configured to send downlink control information, where the downlink control information includes information indicating a reference signal and a data flow number;

The sending module is further configured to send a reference signal according to the information indicating the reference signal and the number of data streams, where the reference signal is used by the signal receiving end to obtain a channel estimation;

The signal transmitting end can be understood as being the same signal transmitting end as the signal transmitting end described in the previous method section (especially, the signal transmitting end described in the flow of FIG. 4 is the same signal transmitting end), and therefore, regarding other corresponding contents. For example, for the description of the status in the information indicating the reference signal and the number of data streams, reference may be made to the description of the method part as before (refer to the description in the flow of FIG. 4 in particular), and no further details are provided.

a sending module, configured to send downlink control information, where the downlink control information includes information indicating a reference signal and a data flow number, where the information indicating the reference signal and the data flow number includes at least two states, and the OCC code corresponding to at least two states Different lengths;

The sending module is further configured to send a reference signal according to the information indicating the reference signal and the number of data streams, where the reference signal is used by the signal receiving end to obtain a channel estimation.

The signal transmitting end can be understood as being the same network as the signal transmitting end as described in the previous method section. The device (especially can be the same signal transmitting end as the signal transmitting end described in the flow of FIG. 5), and therefore, for other related content, for example, for the description of the state in the information indicating the reference signal and the number of data streams, reference may be made to As described in the previous method section (especially with reference to the description in the flow of FIG. 5), it will not be repeated.

The signal transmitting end can be understood as being the same signal transmitting end as the signal transmitting end described in the previous method section (especially the same signal transmitting end as the signal transmitting end described in the flow of FIG. 6A), and therefore, regarding other corresponding contents. For example, for the description of the status in the information indicating the reference signal and the number of data streams, reference may be made to the description of the method part as before (in particular, the description in the flow of FIG. 6A), and no further description is provided.

Referring to FIG. 8 , based on the same inventive concept and the foregoing embodiments, an embodiment of the present invention provides a signal receiving end, where the signal receiving end may include a memory 801, a processor 802, and a receiver 803.

The processor 802 may be a central processing unit or an ASIC (Application Specific Integrated Circuit), and may be one or more integrated circuits for controlling program execution, and may be an FPGA (Field Programmable Gate Array). The hardware circuit developed by the programming gate array can be a baseband chip. The number of memories 801 may be one or more. The memory 801 may include a ROM (Read Only Memory), a RAM (Random Access Memory), and a disk storage. The receiver 803 can belong to the radio frequency system and is used for network communication with an external device, and specifically can communicate with an external device through a network such as an Ethernet, a radio access network, or a wireless local area network.

These memories 801 and receivers 803 may be connected to the processor 802 via a bus, or may be separately connected to the processor 802 through dedicated connection lines.

By programming the processor 802, the code corresponding to the method shown above is solidified into the chip, thereby enabling the chip to perform the method shown in the previous embodiment while it is running. How to design and program the processor 802 is a technique well known to those skilled in the art, and details are not described herein.

The signal receiving end in this embodiment may be the same signal receiving end as the signal receiving end in the above embodiments. For example, the processor 802 in this embodiment may implement the processing module 702 in FIG. 7 . The receiver 803 in the middle can implement the receiving module 701 in FIG.

Referring to FIG. 9, based on the same inventive concept and the above embodiments, an embodiment of the present invention provides a signal sending end, which may include a memory 901, a processor 902, and a transmitter 903.

The processor 902 may be a central processing unit or an ASIC, and may be one or more integrated circuits for controlling program execution, may be hardware circuits developed using an FPGA, and may be baseband chips. The number of memories 901 may be one or more. The memory 901 may include a ROM, a RAM, and a disk storage. The transmitter 903 can belong to a radio frequency system, and is used for network communication with an external device, and specifically can communicate with an external device through a network such as an Ethernet, a radio access network, or a wireless local area network.

These memories 901 and transmitters 903 may be connected to the processor 902 via a bus, or may be connected to the processor 902 via dedicated connection lines, respectively.

By programming the processor 902, the code corresponding to the method shown above is solidified into the chip, thereby enabling the chip to perform the method shown in the previous embodiment while it is running. How to design and program the processor 902 is a technique known to those skilled in the art, and details are not described herein again.

The signal transmitting end in this embodiment may be the same signal transmitting end as the signal transmitting end in the foregoing embodiments. For example, the processor 902 and the transmitter 903 in this embodiment may implement the signal transmitting end as described above. The sending module in .

Based on the same inventive concept and the above embodiments, the embodiment of the present invention provides a signal receiving end, and the structure of the signal receiving end can continue to refer to the structure of FIG. 7. In the signal receiving end,

The processing module 702 is further configured to obtain a channel estimate by using the determined reference signal;

The signal receiving end can be understood as being the same signal receiving end as the signal receiving end as described in the previous method section (especially the same signal receiving end as the signal receiving end described in the flow of FIG. 6B), and therefore, regarding other corresponding contents. For example, for the description of the status in the information indicating the reference signal and the number of data streams, reference may be made to the description of the method part as before (in particular, the description in the flow of FIG. 6B), and no further description is provided.

Wherein, the seventeenth antenna port, the eighteenth antenna port, and the nineteenth antenna port correspond to The time and frequency locations of the resources of the reference signal are the same.

The signal transmitting end can be understood as being the same signal transmitting end as the signal transmitting end described in the previous method section (especially, the signal transmitting end described in the flow of FIG. 6C is the same signal transmitting end), and therefore, regarding other corresponding contents. For example, for the description of the status in the information indicating the reference signal and the number of data streams, reference may be made to the description of the method part as before (in particular, the description in the flow of FIG. 6C), and no further description is provided.

Based on the same inventive concept and the foregoing embodiments, the embodiment of the present invention provides a signal receiving end, and the structure of the signal receiving end can refer to the structure of FIG. 8.

In this embodiment,

The receiver 803 is configured to receive downlink control information, where the downlink control information includes information indicating a reference signal and a data flow number.

The processor 802 is configured to determine a reference signal according to the information indicating the reference signal and the number of data streams;

The processor 802 is further configured to obtain a channel estimate by using the determined reference signal;

Based on the same inventive concept and the foregoing embodiments, an embodiment of the present invention provides a signal sending end. The structure of the signal transmitting end can refer to the structure of FIG.

In this embodiment,

The processor 902 is configured to send, by using the transmitter 903, downlink control information, where the downlink control information includes information indicating the reference signal and the number of data streams; and is further configured to send, by using the transmitter 903, the reference according to the information indicating the reference signal and the number of data streams. a signal, the reference signal is used by the signal receiving end to obtain a channel estimation;

It will be clearly understood by those skilled in the art that for the convenience and brevity of the description, only the division of each functional unit described above is exemplified. In practical applications, the above-mentioned work can be performed as needed. The assignment can be done by different functional units, ie the internal structure of the device is divided into different functional units to perform all or part of the functions described above. For the specific working process of the system, the device and the unit described above, reference may be made to the corresponding process in the foregoing method embodiments, and details are not described herein again.

In the several embodiments provided by the present application, it should be understood that the disclosed system, apparatus, and method may be implemented in other manners. For example, the device embodiments described above are merely illustrative. For example, the division of the unit or unit is only a logical function division. In actual implementation, there may be another division manner, for example, multiple units or components may be used. Combinations can be integrated into another system, or some features can be ignored or not executed. In addition, the mutual coupling or direct coupling or communication connection shown or discussed may be an indirect coupling or communication connection through some interface, device or unit, and may be in an electrical, mechanical or other form.

The units described as separate components may or may not be physically separated, and the components displayed as units may or may not be physical units, that is, may be located in one place, or may be distributed to multiple network units. Some or all of the units may be selected according to actual needs to achieve the purpose of the solution of the embodiment.

In addition, each functional unit in each embodiment of the present application may be integrated into one processing unit, or each unit may exist physically separately, or two or more units may be integrated into one unit. The above integrated unit can be implemented in the form of hardware or in the form of a software functional unit.

The integrated unit, if implemented in the form of a software functional unit and sold or used as a standalone product, may be stored in a computer readable storage medium. Based on such understanding, the technical solution of the present application, in essence or the contribution to the prior art, or all or part of the technical solution may be embodied in the form of a software product stored in a storage medium. A number of instructions are included to cause a computer device (which may be a personal computer, a server, or a network device, etc.) or a processor to execute all or part of the steps of the methods described in various embodiments of the present application. The foregoing storage medium includes various media that can store program codes, such as a USB flash drive, a mobile hard disk, a ROM, a RAM, a magnetic disk, or an optical disk.

The above embodiments are only used to describe the technical solutions of the present application in detail, but The description of the above embodiments is only for the purpose of understanding the embodiments of the present invention and the core idea thereof, and should not be construed as limiting the embodiments of the present invention. A person skilled in the art can easily conceive changes or substitutions within the scope of the invention as disclosed in the embodiments of the present invention.

Claims

A reference signal configuration method, comprising:

Receiving downlink control information, where the downlink control information includes information indicating a reference signal and a number of data streams;

Determining a reference signal according to the information indicating the reference signal and the number of data streams;

Obtaining a channel estimate using the determined reference signal;

The information indicating the reference signal and the number of data streams includes at least three states:

The first state includes: the number of data streams is 1, the first antenna port, and the corresponding first orthogonal spreading code OCC code length;

The second state includes at least: the number of data streams is 1, the second antenna port, and the corresponding first OCC code length;

The third state includes at least: the number of data streams is 1, the third antenna port, and the corresponding first OCC code length;

The fourth state includes at least: the number of data streams is 1, the fourth antenna port, and the corresponding first OCC code length;

The fifth state includes at least: the number of data streams is 1, the fifth antenna port, and the corresponding second OCC code length;

The time and frequency positions of the resources of the reference signals corresponding to the first antenna port, the second antenna port, the third antenna port, and the fourth antenna port are the same.
The method according to claim 1, wherein the first antenna port, the second antenna port, the third antenna port, and the fourth antenna port have different OCC code sequences.
The method according to claim 1 or 2, wherein the time and frequency positions of the reference signal resources corresponding to the fifth antenna port and the first antenna port are the same.
The method according to any one of claims 1-3, wherein the first OCC code length is 4 and the second OCC code length is 2.
The method of any of claims 1-4, wherein any of the at least three states further comprises: scrambling code sequence information.
The method according to any one of claims 1-5, wherein the information indicating the reference signal and the number of data streams includes eight states under the condition that codeword 0 is enabled and codeword 1 is not enabled. .
The method according to any one of claims 1-6, wherein the information indicating the reference signal and the number of data streams further includes a state in which the number of data streams is greater than one.
The method according to claim 7, wherein the state in which the number of data streams is greater than 1 comprises the second OCC code length.
The method according to claim 7 or 8, wherein the number of data streams in which the number of data streams is greater than one is 2, 3, and 4, respectively.
The method according to any one of claims 1-9, wherein the information indicating the reference signal and the number of data streams includes eight states:

The first state includes: the number of data flows is 1, the first antenna port and the corresponding OCC code length is 4;

The second state includes: the number of data streams is 1, the second antenna port and the corresponding OCC code length are 4;

The third state includes: the number of data streams is 1, the third antenna port and the corresponding OCC code length is 4;

The fourth state includes: the number of data streams is 1, the fourth antenna port and the corresponding OCC code length is 4;

The fifth state includes: the number of data streams is 1, the fifth antenna port and the corresponding OCC code length are 2;

The sixth state includes: the number of data streams is 2, the first antenna port and the second antenna port, and the corresponding OCC code length is 2;

The seventh state includes: the number of data streams is three, the first antenna port, the second antenna port, and the sixth antenna port, and the corresponding OCC code length is 2;

The eighth state includes at least: the number of data streams is four, the first antenna port, and the second antenna end The port, the sixth antenna port and the seventh antenna port and the corresponding OCC code length are 2;

The time and frequency positions of the resources of the reference signals corresponding to the first antenna port, the second antenna port, the third antenna port, and the fourth antenna port are the same.
The method according to claim 10, wherein a time and a frequency position of a resource of a reference signal corresponding to the sixth antenna port and the seventh antenna port is a reference corresponding to the first antenna port The time and frequency position of the signal's resources are not the same.
The method according to any one of claims 6-11, wherein the information indicating the reference signal and the number of data streams includes states as shown in the following table:
The method according to any one of claims 1-7, wherein the information indicating the reference signal and the number of data streams includes at least seven states in the following states:

The first state includes at least: the number of data streams is 1, the first antenna port and corresponding The OCC code length is 4;

The second state includes: the number of data streams is 1, the second antenna port and the corresponding OCC code length are 4;

The third state includes: the number of data streams is 1, the third antenna port and the corresponding OCC code length is 4;

The fourth state includes: the number of data streams is 1, the fourth antenna port and the corresponding OCC code length is 4;

The fifth state includes: the number of data streams is 1, the fifth antenna port and the corresponding OCC code length are 2;

The sixth state includes: the number of data streams is 2, the first antenna port and the second antenna port, and the corresponding OCC code length is 4;

The seventh state includes: the number of data streams is three, the first antenna port, the second antenna port, and the third antenna port, and the corresponding OCC code length is 4;

The eighth state includes: the number of data streams is 4, the first antenna port, the second antenna port, the third antenna port, and the fourth antenna port, and a corresponding OCC code length is 4;

The time and frequency positions of the resources of the reference signals corresponding to the first antenna port, the second antenna port, the third antenna port, and the fourth antenna port are the same.
A reference signal configuration method, comprising:

Receiving downlink control information, where the downlink control information includes information indicating a reference signal and a number of data streams;

Determining a reference signal according to the information indicating the reference signal and the number of data streams;

Obtaining a channel estimate using the determined reference signal;

The information indicating the reference signal and the number of data streams includes the following states:

The ninth state includes at least: a data stream number of 2, an eighth antenna port, a ninth antenna port, and a corresponding first orthogonal spreading code OCC code length;

The tenth state at least includes: the number of data streams is 2, the tenth antenna port, the eleventh antenna port, and the corresponding first OCC code length.
The method according to claim 14, wherein the status of the information indicating the reference signal and the number of data streams includes: scrambling code sequence information.
The method according to claim 14 or 15, wherein the resources of the reference signals corresponding to the eighth antenna port, the ninth antenna port, the tenth antenna port, and the eleventh antenna port are The time and frequency positions are the same, and the corresponding first OCC code length is 4.
The method according to any one of claims 14-16, wherein a time and a frequency position of a resource of a reference signal corresponding to the eighth antenna port and the ninth antenna port are the same, and the tenth antenna port The time and frequency positions of the resources of the reference signal corresponding to the eleventh antenna port are the same, and the time and frequency positions of the resources of the reference signal corresponding to the eighth antenna port and the tenth antenna port are different. The corresponding first OCC code length is 2.
The method according to any one of claims 14-17, wherein the information indicating the reference signal and the number of data streams includes eight states under the condition that codeword 0 is enabled and codeword 1 is enabled.
The method according to any one of claims 14-18, wherein the information indicating the reference signal and the number of data streams further includes the following states:

The eleventh state includes at least: a data stream number of three, a twelfth antenna port, a thirteenth antenna port, and a fourteenth antenna port, corresponding to the second OCC code length;

The twelfth state includes at least: a data stream number of four, the twelfth antenna port, the thirteenth antenna port, the fourteenth antenna port, and the fifteenth antenna port corresponding to the second OCC code length.
The method of claim 19 wherein said second OCC code length is 2 or 4.
The method according to claim 19 or 20, wherein the reference corresponding to the twelfth antenna port, the thirteenth antenna port, the fourteenth antenna port, and the fifteenth antenna port The time and frequency locations of the resources of the signal are the same.
The method according to any one of claims 14 to 21, wherein the information indicating the reference signal and the number of data streams further includes a state in which the number of data streams is greater than four.
The method of claim 22, wherein the number of data streams is greater than four The state corresponds to an OCC code length of 4.
The method according to claim 23, wherein the number of data streams in which the number of data streams is greater than 4 corresponds to 5, 6, 7, and 8, respectively.
A reference signal configuration method, comprising:

Transmitting downlink control information, where the downlink control information includes information indicating a reference signal and a number of data streams;

And transmitting, by using the information indicating the reference signal and the number of data streams, the reference signal, where the reference signal is used by the terminal to obtain a channel estimation;

The information indicating the reference signal and the number of data streams includes at least three states:

The first state includes: the number of data streams is 1, the first antenna port, and the corresponding first orthogonal spreading code OCC code length;

The second state includes at least: the number of data streams is 1, the second antenna port, and the corresponding first OCC code length;

The third state includes at least: the number of data streams is 1, the third antenna port, and the corresponding first OCC code length;

The fourth state includes at least: the number of data streams is 1, the fourth antenna port, and the corresponding first OCC code length;

The fifth state includes at least: the number of data streams is 1, the fifth antenna port, and the corresponding second OCC code length;

The time and frequency positions of the resources of the reference signals corresponding to the first antenna port, the second antenna port, the third antenna port, and the fourth antenna port are the same.
The method according to claim 25, wherein the first antenna port, the second antenna port, the third antenna port, and the fourth antenna port have different OCC code sequences.
The method according to claim 25 or 26, wherein the time and frequency positions of the reference signal resources corresponding to the fifth antenna port and the first antenna port are the same.
A method according to any of claims 25-27, wherein said first OCC code The length is 4, and the second OCC code length is 2.
The method of any of claims 25-28, wherein any of the at least three states further comprises: scrambling code sequence information.
The method according to any one of claims 25-29, wherein the information indicating the reference signal and the number of data streams includes eight states under the condition that codeword 0 is enabled and codeword 1 is not enabled. .
The method according to any one of claims 25-30, wherein the information indicating the reference signal and the number of data streams further comprises a state in which the number of data streams is greater than one.
The method according to claim 31, wherein the state in which the number of data streams is greater than one comprises the second OCC code length.
The method according to claim 31 or 32, wherein the number of data streams in which the number of data streams is greater than one is 2, 3, and 4, respectively.
The method according to any one of claims 25 to 33, wherein the information indicating the reference signal and the number of data streams includes eight states:

The first state includes: the number of data flows is 1, the first antenna port and the corresponding OCC code length is 4;

The second state includes: the number of data streams is 1, the second antenna port and the corresponding OCC code length are 4;

The third state includes: the number of data streams is 1, the third antenna port and the corresponding OCC code length is 4;

The fourth state includes: the number of data streams is 1, the fourth antenna port and the corresponding OCC code length is 4;

The fifth state includes: the number of data streams is 1, the fifth antenna port and the corresponding OCC code length are 2;

The sixth state includes: the number of data streams is 2, the first antenna port and the second antenna port, and the corresponding OCC code length is 2;

The seventh state includes: the number of data streams is three, the first antenna port, the second antenna port, and the sixth antenna port, and the corresponding OCC code length is 2;

The eighth state includes: the number of data streams is 4, the first antenna port, the second antenna port, the sixth antenna port, and the seventh antenna port, and the corresponding OCC code length is 2;

The time and frequency positions of the resources of the reference signals corresponding to the first antenna port, the second antenna port, the third antenna port, and the fourth antenna port are the same.
The method according to claim 34, wherein a time and a frequency position of a resource of a reference signal corresponding to the sixth antenna port and the seventh antenna port is a reference corresponding to the first antenna port The time and frequency position of the signal's resources are not the same.
The method according to any one of claims 30 to 35, wherein the information indicating the reference signal and the number of data streams includes states as shown in the following table:
The method according to any one of claims 25 to 31, wherein said information indicating the reference signal and the number of data streams includes at least seven states in the following states:

The first state includes: the number of data flows is 1, the first antenna port and the corresponding OCC code length is 4;

The second state includes: the number of data streams is 1, the second antenna port and the corresponding OCC code length are 4;

The third state includes: the number of data streams is 1, the third antenna port and the corresponding OCC code length is 4;

The fourth state includes: the number of data streams is 1, the fourth antenna port and the corresponding OCC code length is 4;

The fifth state includes: the number of data streams is 1, the fifth antenna port and the corresponding OCC code length are 2;

The sixth state includes: the number of data streams is 2, the first antenna port and the second antenna port, and the corresponding OCC code length is 4;

The seventh state includes: the number of data streams is three, the first antenna port, the second antenna port, and the third antenna port, and the corresponding OCC code length is 4;

The eighth state includes: the number of data streams is 4, the first antenna port, the second antenna port, the third antenna port, and the fourth antenna port, and a corresponding OCC code length is 4;

The time and frequency positions of the resources of the reference signals corresponding to the first antenna port, the second antenna port, the third antenna port, and the fourth antenna port are the same.
A reference signal configuration method, comprising:

Transmitting downlink control information, where the downlink control information includes information indicating a reference signal and a number of data streams;

And transmitting, by using the information indicating the reference signal and the number of data streams, the reference signal, where the reference signal is used by the terminal to obtain a channel estimation;

The information indicating the reference signal and the number of data streams includes the following states:

The ninth state includes at least: a data stream number of 2, an eighth antenna port, a ninth antenna port, and a corresponding first orthogonal spreading code OCC code length;

The tenth state includes at least: the number of data streams is 2, the tenth antenna port, and the eleventh antenna port are And corresponding to the first OCC code length.
The method of claim 38, wherein the status of the information indicating the reference signal and the number of data streams further comprises: scrambling code sequence information.
The method according to claim 38 or 39, wherein the resources of the reference signals corresponding to the eighth antenna port, the ninth antenna port, the tenth antenna port, and the eleventh antenna port are The time and frequency positions are the same, and the corresponding first OCC code length is 4.
The method according to any one of claims 38-40, wherein the time and frequency position of the resource of the reference signal corresponding to the eighth antenna port and the ninth antenna port are the same, and the tenth antenna port The time and frequency positions of the resources of the reference signal corresponding to the eleventh antenna port are the same, and the time and frequency positions of the resources of the reference signal corresponding to the eighth antenna port and the tenth antenna port are different. The corresponding first OCC code length is 2.
The method according to any of claims 38-41, wherein the information indicating the reference signal and the number of data streams includes eight states under the condition that codeword 0 is enabled and codeword 1 is enabled.
The method according to any one of claims 38 to 42, wherein the information indicating the reference signal and the number of data streams further includes the following states:

The eleventh state includes at least: a data stream number of three, a twelfth antenna port, a thirteenth antenna port, and a fourteenth antenna port, corresponding to the second OCC code length;

The twelfth state includes at least: a data stream number of four, the twelfth antenna port, the thirteenth antenna port, the fourteenth antenna port, and a fifteenth antenna port corresponding to the second OCC code long.
The method of claim 43 wherein said second OCC code length is 2 or 4.
The method according to claim 43 or 44, wherein the reference corresponding to the twelfth antenna port, the thirteenth antenna port, the fourteenth antenna port, and the fifteenth antenna port The time and frequency locations of the resources of the signal are the same.
The method according to any one of claims 38 to 45, wherein the information indicating the reference signal and the number of data streams further includes a state in which the number of data streams is greater than four.
The method of claim 46, wherein the number of data streams is greater than four The state corresponds to an OCC code length of 4.
The method according to claim 47, wherein the number of data streams in which the number of data streams is greater than 4 corresponds to 5, 6, 7, and 8, respectively.
A reference signal configuration method, comprising:

Receiving downlink control information, where the downlink control information includes information indicating a reference signal and a number of data streams;

Determining a reference signal according to the information indicating the reference signal and the number of data streams;

Obtaining a channel estimate using the determined reference signal;

The information indicating the reference signal and the number of data streams includes the following states:

The twenty-second state includes at least: a data stream number of three, a seventeenth antenna port, an eighteenth antenna port, a nineteenth antenna port, and a corresponding first orthogonal spreading code OCC code length;

The time and frequency position of the resources of the reference signal corresponding to the seventeenth antenna port, the eighteenth antenna port, and the nineteenth antenna port are the same.
The method according to claim 49, wherein the seventeenth antenna port, the eighteenth antenna port, and the nineteenth antenna port have different OCC code sequences.
The method of claim 49 or 50, wherein the first OCC code length is four.
A method according to any of claims 49-51, wherein said state further comprises a scrambling code identity number ID or scrambling code sequence information.
The method according to any one of claims 49 to 52, wherein the codeword 0 corresponding to the state is enabled, the codeword 1 is enabled, or the codeword 0 corresponding to the state is enabled, and the codeword 1 is enabled. Not enabled.
The method according to any one of claims 49-53, wherein the information indicating the reference signal and the number of data streams further includes the following states:

The twenty-third state includes at least: a data stream number of three, a seventeenth antenna port, an eighteenth antenna port, a nineteenth antenna port, and a corresponding second OCC code length;

The time and frequency position of the resource of the reference signal corresponding to the seventeenth antenna port and the eighteenth antenna port are the same, and the seventeenth antenna port and the nineteenth antenna port are The time and frequency positions of the resources of the corresponding reference signal are different.
The method of claim 54 wherein said second OCC code length is 2 or 4.
The method according to any one of claims 49 to 55, wherein the information indicating the reference signal and the number of data streams further includes the following states:

The twenty-fourth state includes at least: a data stream number of four, a seventeenth antenna port, an eighteenth antenna port, a nineteenth antenna port, and a twentieth antenna port, and a corresponding third OCC code length;

The time and frequency position of the resources of the reference signal corresponding to the seventeenth antenna port and the eighteenth antenna port are the same.
The method according to claim 56, wherein the time and frequency positions of the resources of the reference signal corresponding to the seventeenth antenna port, the eighteenth antenna port, and the nineteenth antenna port are the same .
The method according to claim 56 or 57, wherein said seventeenth antenna port, said eighteenth antenna port, said nineteenth antenna port and said twentieth antenna port The time and frequency locations of the resources of the reference signal are the same.
The method according to any one of claims 56 to 58, wherein the third OCC code length is 2 or 4.
A reference signal configuration method, comprising:

Transmitting downlink control information, where the downlink control information includes information indicating a reference signal and a number of data streams;

And transmitting, by using the information indicating the reference signal and the number of data streams, the reference signal, where the reference signal is used by the terminal to obtain a channel estimation;

The information indicating the reference signal and the number of data streams includes the following states:

The twenty-second state includes at least: a data stream number of three, a seventeenth antenna port, an eighteenth antenna port, a nineteenth antenna port, and a corresponding first orthogonal spreading code OCC code length;

The time and frequency position of the resources of the reference signal corresponding to the seventeenth antenna port, the eighteenth antenna port, and the nineteenth antenna port are the same.
The method according to claim 60, wherein the seventeenth antenna port, the eighteenth antenna port, and the nineteenth antenna port have different OCC code sequences.
The method of claim 60 or 61, wherein the first OCC code length is four.
A method according to any of claims 60-62, wherein said state further comprises a scrambling code identity number ID or scrambling code sequence information.
The method according to any one of claims 60-63, wherein the codeword 0 corresponding to the state is enabled, the codeword 1 is enabled, or the codeword 0 corresponding to the state is enabled, and the codeword 1 is enabled. Not enabled.
The method according to any one of claims 60-64, wherein the information indicating the reference signal and the number of data streams further comprises the following states:

The twenty-third state includes at least: a data stream number of three, a seventeenth antenna port, an eighteenth antenna port, a nineteenth antenna port, and a corresponding second OCC code length;

The time and frequency position of the reference signal resource corresponding to the seventeenth antenna port and the eighteenth antenna port are the same, and the seventeenth antenna port corresponds to the nineteenth antenna port. The time and frequency locations of the resources of the reference signal are not the same.
The method of claim 65 wherein said second OCC code length is 2 or 4.
The method according to any one of claims 60 to 66, wherein the information indicating the reference signal and the number of data streams further includes the following states:

The twenty-fourth state includes at least: a data stream number of four, a seventeenth antenna port, an eighteenth antenna port, a nineteenth antenna port, and a twentieth antenna port, and a corresponding third OCC code length;

The time and frequency position of the resources of the reference signal corresponding to the seventeenth antenna port and the eighteenth antenna port are the same.
The method according to claim 67, wherein the resources of the reference signal corresponding to the seventeenth antenna port, the eighteenth antenna port, and the nineteenth antenna port have the same time and frequency position .
Method according to claim 67 or 68, wherein said seventeenth antenna end And the eighteenth antenna port, wherein the nineteenth antenna port and the twentieth antenna port have the same time and frequency position of the resource of the reference signal.
A method according to any of claims 67-69, wherein said third OCC code length is 2 or 4.
A signal receiving end, comprising:

a receiving module, configured to receive downlink control information, where the downlink control information includes information indicating a reference signal and a data flow number;

a processing module, configured to determine a reference signal according to the information indicating the reference signal and the number of data streams;

The processing module is further configured to obtain a channel estimate by using the determined reference signal;

The information indicating the reference signal and the number of data streams includes at least three states:

The first state includes: the number of data streams is 1, the first antenna port, and the corresponding first orthogonal spreading code OCC code length;

The second state includes at least: the number of data streams is 1, the second antenna port, and the corresponding first OCC code length;

The third state includes at least: the number of data streams is 1, the third antenna port, and the corresponding first OCC code length;

The fourth state includes at least: the number of data streams is 1, the fourth antenna port, and the corresponding first OCC code length;

The fifth state includes at least: the number of data streams is 1, the fifth antenna port, and the corresponding second OCC code length;

The time and frequency positions of the resources of the reference signals corresponding to the first antenna port, the second antenna port, the third antenna port, and the fourth antenna port are the same.
The signal receiving end according to claim 71, wherein the first antenna port, the second antenna port, the third antenna port, and the fourth antenna port have different OCC code sequences.
The signal receiving end according to claim 71 or 72, wherein the time and frequency positions of the reference signal resources corresponding to the fifth antenna port and the first antenna port are the same.
The signal receiving end according to any one of claims 71 to 73, wherein the first OCC code length is 4 and the second OCC code length is 2.
The signal receiving end according to any one of claims 71 to 74, wherein any one of said at least three states further comprises: scrambling code sequence information.
The signal receiving end according to any one of claims 71 to 73, wherein said indication reference is provided under the condition that the transport block codeword 0 for transmitting data is enabled and the transport block codeword 1 is not enabled. The information on the number of signals and data streams includes eight states.
A signal receiving end, comprising:

a receiving module, configured to receive downlink control information, where the downlink control information includes information indicating a reference signal and a data flow number;

a processing module, configured to determine a reference signal according to the information indicating the reference signal and the number of data streams;

The processing module is further configured to obtain a channel estimate by using the determined reference signal;

The information indicating the reference signal and the number of data streams includes the following states:

The ninth state includes at least: a data stream number of 2, an eighth antenna port, a ninth antenna port, and a corresponding first orthogonal spreading code OCC code length;

The tenth state at least includes: the number of data streams is 2, the tenth antenna port, the eleventh antenna port, and the corresponding first OCC code length.
The signal receiving end according to claim 77, wherein the status of the information indicating the reference signal and the number of data streams further comprises: scrambling code sequence information.
The signal receiving end according to claim 77 or 78, wherein the reference signal corresponding to the eighth antenna port, the ninth antenna port, the tenth antenna port, and the eleventh antenna port The time and frequency positions of the resources are the same, and the corresponding first OCC code length is 4.
The signal receiving end according to any one of claims 77 to 79, wherein the time and frequency position of the resource of the reference signal corresponding to the eighth antenna port and the ninth antenna port are the same, and the tenth a time and a frequency position of a resource of the reference signal corresponding to the antenna port and the eleventh antenna port, and a time and a frequency position of a resource of the reference signal corresponding to the eighth antenna port and the tenth antenna port Different, the corresponding first OCC code length is 2.
The signal receiving end according to any one of claims 77 to 80, characterized in that, under the condition that codeword 0 is enabled and codeword 1 is enabled, the information indicating the reference signal and the number of data streams includes eight status.
A signal transmitting end, comprising:

a sending module, configured to send downlink control information, where the downlink control information includes information indicating a reference signal and a data flow number;

The sending module is further configured to send, according to the information indicating the reference signal and the number of data streams, the reference signal, where the reference signal is used by the signal receiving end to obtain a channel estimation;

The information indicating the reference signal and the number of data streams includes at least three states:

The first state includes: the number of data streams is 1, the first antenna port, and the corresponding first orthogonal spreading code OCC code length;

The second state includes at least: the number of data streams is 1, the second antenna port, and the corresponding first OCC code length;

The third state includes at least: the number of data streams is 1, the third antenna port, and the corresponding first OCC code length;

The fourth state includes at least: the number of data streams is 1, the fourth antenna port, and the corresponding first OCC code length;

The fifth state includes at least: the number of data streams is 1, the fifth antenna port, and the corresponding second OCC code length;

The time and frequency positions of the resources of the reference signals corresponding to the first antenna port, the second antenna port, the third antenna port, and the fourth antenna port are the same.
The signal transmitting end according to claim 82, wherein the first antenna port, the second antenna port, the third antenna port, and the fourth antenna port have different OCC code sequences.
The signal transmitting end according to claim 82 or 83, wherein the time and frequency positions of the reference signal resources corresponding to the fifth antenna port and the first antenna port are the same.
A signal transmitting end according to any one of claims 82 to 84, wherein said first The OCC code length is 4, and the second OCC code length is 2.
The signal transmitting end according to any one of claims 82 to 85, wherein any one of said at least three states further comprises: scrambling code sequence information.
The signal transmitting end according to any one of claims 82 to 86, wherein the information indicating the reference signal and the number of data streams includes 8 when codeword 0 is enabled and codeword 1 is not enabled. Status.
A signal transmitting end, comprising:

a sending module, configured to send downlink control information, where the downlink control information includes information indicating a reference signal and a data flow number;

The sending module is further configured to send, according to the information indicating the reference signal and the number of data streams, the reference signal, where the reference signal is used by the signal receiving end to obtain a channel estimation;

The information indicating the reference signal and the number of data streams includes the following states:

The ninth state includes at least: a data stream number of 2, an eighth antenna port, a ninth antenna port, and a corresponding first orthogonal spreading code OCC code length;

The tenth state at least includes: the number of data streams is 2, the tenth antenna port, the eleventh antenna port, and the corresponding first OCC code length.
The signal transmitting end according to claim 88, wherein the status of the information indicating the reference signal and the number of data streams includes: scrambling code sequence information.
The signal transmitting end according to claim 88 or 89, wherein the reference signal corresponding to the eighth antenna port, the ninth antenna port, the tenth antenna port, and the eleventh antenna port The time and frequency positions of the resources are the same, and the corresponding first OCC code length is 4.
The signal transmitting end according to any one of claims 88 to 90, wherein the time and frequency position of the resource of the reference signal corresponding to the eighth antenna port and the ninth antenna port are the same, and the tenth a time and a frequency position of a resource of the reference signal corresponding to the antenna port and the eleventh antenna port, and a time and a frequency position of a resource of the reference signal corresponding to the eighth antenna port and the tenth antenna port Different, the corresponding first OCC code length is 2.
A signal transmitting end according to any of claims 88-91, characterized in that in code word 0 Under the condition that the enable and codeword 1 are enabled, the information indicating the reference signal and the number of data streams includes eight states.
A signal receiving end, comprising:

a receiving module, configured to receive downlink control information, where the downlink control information includes information indicating a reference signal and a data flow number;

a processing module, configured to determine a reference signal according to the information indicating the reference signal and the number of data streams;

The processing module is further configured to obtain a channel estimate by using the determined reference signal;

The information indicating the reference signal and the number of data streams includes the following states:

The twenty-second state includes at least: a data stream number of three, a seventeenth antenna port, an eighteenth antenna port, a nineteenth antenna port, and a corresponding first orthogonal spreading code OCC code length;

The time and frequency position of the resources of the reference signal corresponding to the seventeenth antenna port, the eighteenth antenna port, and the nineteenth antenna port are the same.
The signal receiving end according to claim 93, wherein the seventeenth antenna port, the eighteenth antenna port, and the nineteenth antenna port have different OCC code sequences.
The signal receiving end according to claim 93 or 94, wherein said first OCC code length is four.
A signal receiving end according to any of claims 93-95, wherein said state further comprises a scrambling code identity number ID or scrambling code sequence information.
The signal receiving end according to any one of claims 93-96, wherein the codeword 0 corresponding to the state is enabled, the codeword 1 is enabled, or the codeword 0 corresponding to the state is enabled, and the code is Word 1 is not enabled.
The signal receiving end according to any one of claims 93 to 97, wherein the information indicating the reference signal and the number of data streams further includes the following states:

The twenty-third state includes at least: a data stream number of three, a seventeenth antenna port, an eighteenth antenna port, a nineteenth antenna port, and a corresponding second OCC code length;

The time and frequency position of the resource of the reference signal corresponding to the seventeenth antenna port and the eighteenth antenna port are the same, and the seventeenth antenna port and the nineteenth antenna port are The time and frequency positions of the resources of the corresponding reference signal are different.
The signal receiving end according to claim 98, wherein said second OCC code length is 2 or 4.
The signal receiving end according to any one of claims 93 to 99, wherein the information indicating the reference signal and the number of data streams further includes the following states:

The twenty-fourth state includes at least: a data stream number of four, a seventeenth antenna port, an eighteenth antenna port, a nineteenth antenna port, and a twentieth antenna port, and a corresponding third OCC code length;

The time and frequency positions of the resources of the reference signals corresponding to the seventeenth antenna port and the eighteenth antenna port are the same.
The signal receiving end according to claim 100, wherein a time and a frequency of a resource of a reference signal corresponding to said seventeenth antenna port, said eighteenth antenna port, and said nineteenth antenna port The location is the same.
The signal receiving end according to claim 100 or 101, wherein said seventeenth antenna port, said eighteenth antenna port, said nineteenth antenna port and said twentieth antenna port The time and frequency positions of the resources of the corresponding reference signal are the same.
The signal receiving end according to any one of claims 100 to 102, wherein said third OCC code length is 2 or 4.
A signal transmitting end, comprising:

a sending module, configured to send downlink control information, where the downlink control information includes information indicating a reference signal and a data flow number;

The sending module is further configured to send, according to the information indicating the reference signal and the number of data streams, the reference signal, where the reference signal is used by the signal receiving end to obtain a channel estimation;

The information indicating the reference signal and the number of data streams includes the following states:

The twenty-second state includes at least: a data stream number of three, a seventeenth antenna port, an eighteenth antenna port, a nineteenth antenna port, and a corresponding first orthogonal spreading code OCC code length;

The time and frequency position of the resources of the reference signal corresponding to the seventeenth antenna port, the eighteenth antenna port, and the nineteenth antenna port are the same.
The signal transmitting end according to claim 104, wherein the seventeenth antenna port, the eighteenth antenna port, and the nineteenth antenna port have different OCC code sequences.
The signal transmitting end according to claim 104 or 105, wherein said first OCC code length is four.
The signal transmitting end according to any one of claims 104 to 106, wherein the state further comprises a scrambling code identity number ID or scrambling code sequence information.
The signal transmitting end according to any one of claims 104-107, wherein the codeword 0 corresponding to the state is enabled, the codeword 1 is enabled, or the codeword 0 corresponding to the state is enabled, and the code is Word 1 is not enabled.
The signal transmitting end according to any one of claims 104 to 108, wherein the information indicating the reference signal and the number of data streams further includes the following states:

The twenty-third state includes at least: a data stream number of three, a seventeenth antenna port, an eighteenth antenna port, a nineteenth antenna port, and a corresponding second OCC code length;

The time and frequency position of the reference signal resource corresponding to the seventeenth antenna port and the eighteenth antenna port are the same, and the seventeenth antenna port corresponds to the nineteenth antenna port. The time and frequency locations of the resources of the reference signal are not the same.
The signal transmitting end according to claim 109, wherein said second OCC code length is 2 or 4.
The signal transmitting end according to any one of claims 104 to 110, wherein the information indicating the reference signal and the number of data streams further includes the following states:

The twenty-fourth state includes at least: a data stream number of four, a seventeenth antenna port, an eighteenth antenna port, a nineteenth antenna port, and a twentieth antenna port, and a corresponding third OCC code length;

The time and frequency positions of the resources of the reference signals corresponding to the seventeenth antenna port and the eighteenth antenna port are the same.
The signal transmitting end according to claim 111, wherein resources of the reference signal corresponding to the seventeenth antenna port, the eighteenth antenna port, and the nineteenth antenna port are The time and frequency are the same.
The signal transmitting end according to claim 111 or 112, wherein said seventeenth antenna port, said eighteenth antenna port, said nineteenth antenna port and said twentieth antenna port The time and frequency positions of the resources of the corresponding reference signal are the same.
The signal transmitting end according to any one of claims 111 to 113, wherein said third OCC code length is 2 or 4.