WO2017075836A1

WO2017075836A1 - Csi-rs configuration method and related apparatus

Info

Publication number: WO2017075836A1
Application number: PCT/CN2015/094063
Authority: WO
Inventors: 刘建琴; 刘鹍鹏
Original assignee: 华为技术有限公司
Priority date: 2015-11-06
Filing date: 2015-11-06
Publication date: 2017-05-11
Also published as: CN107925896A

Abstract

An embodiment of the present invention provides a CSI-RS configuration method and related apparatus, at least solving the problem in which at present there is no technical solution relating to the configuration of CSI-RS in a special subframe. The method comprises: a base station determines a CSI-RS configuration of a special subframe, the CSI-RS configuration comprising an identifier of a resource element (RE) of the CSI-RS, wherein, each pair of t physical resource blocks (PRBs) having m n-port CSI-RS resources, each n-port CSI-RS resource of the m n-port CSI-RS resources comprises r w-port CSI-RS resources in aggregation, n = r × w, and each of t, m, n, r, and w are positive integers; the base station sends to a user equipment (UE) a message indicating the CSI-RS configuration, the message being for indicating the special subframe CSI-RS configuration. The present invention is suitable for the field of communications.

Description

CSI-RS configuration method and related equipment

Technical field

The present invention relates to the field of communications, and in particular, to a method for configuring a channel state information reference signal (CSI-RS) and related devices.

Background technique

In the third generation partner project (English: the 3rd Generation Partnership Project, 3GPP) Long Term Evolution (English: Long Term Evolution, LTE) 10th Edition (English: Release 10, referred to as: R10) downlink system, The reference signal used for channel state information measurement is called CSI-RS.

The CSI-RS configuration of the special subframe is not supported in the LTE R10 standard. The CSI-RS configuration of the number of

ports

1, 2, 4, and 8 of the downlink subframe is supported, and only 8 antenna ports can be supported at most. In order to further improve the spectrum efficiency, the upcoming LTE R13 standard is beginning to consider introducing more antenna configurations, especially antenna configurations based on active antenna systems (English: Active Antenna Systems, AAS) with more than 8 antenna ports. . For example, the number of antenna ports may be 12, 16, 32 or 64, and the like.

Currently, in the Rel-13 standard, the conclusion that the special subframe can support the CSI-RS configuration of the 2/4/8/12/16 port has been passed. However, the CSI-RS is not configured in the special subframe at present. Related solutions.

Summary of the invention

The embodiments of the present invention provide a method and a related device for configuring a CSI-RS, so as to at least solve the problem that the related solution of the CSI-RS is not currently configured in a special subframe.

To achieve the above objective, the embodiment of the present invention adopts the following technical solutions:

In a first aspect, a method for configuring a channel state information reference signal CSI-RS is provided, the method comprising:

Determining, by the base station, a CSI-RS configuration of a special subframe, where the CSI-RS configuration includes an identifier of a resource unit RE of the CSI-RS, where each of the physical resource block PRB pairs includes m n-ends Port CSI-RS resource, each n-port CSI-RS resource of the m n-port CSI-RS resources is aggregated by r w-port CSI-RS resources, n=r×w, t, m, n , r, w are positive integers;

The base station sends the indication information of the CSI-RS configuration to the user equipment UE, where the indication information of the CSI-RS configuration is used to indicate the CSI-RS configuration of the special subframe.

In a second aspect, a method for configuring a channel state information reference signal CSI-RS is provided, the method comprising:

The user equipment UE receives the indication information of the CSI-RS configuration sent by the base station, where the indication information of the CSI-RS configuration is used to indicate the CSI-RS configuration of the special subframe, where the number of the PRB pairs per t physical resource block includes m An n-port CSI-RS resource, where each n-port CSI-RS resource of the m n-port CSI-RS resources is aggregated by r w-port CSI-RS resources, n=r×w, t, m, n, r, w are positive integers;

The UE determines a CSI-RS configuration of the special subframe according to the indication information of the CSI-RS configuration.

A third aspect provides a base station, where the base station includes: a processing unit and a sending unit;

The processing unit is configured to determine a channel state information reference signal CSI-RS configuration of a special subframe, where the CSI-RS configuration includes an identifier of a resource unit RE of the CSI-RS, where each physical resource block PRB The pair includes m n-port CSI-RS resources, and each n-port CSI-RS resource of the m n-port CSI-RS resources is aggregated by r w-port CSI-RS resources, n=r×w , t, m, n, r, w are all positive integers;

The sending unit is configured to send the indication information of the CSI-RS configuration to the user equipment UE, where the indication information of the CSI-RS configuration is used to indicate a CSI-RS configuration of the special subframe.

A fourth aspect provides a user equipment UE, where the UE includes: a receiving unit and a processing unit;

The receiving unit is configured to receive indication information of a channel state information reference signal CSI-RS configuration sent by the base station, where the indication information of the CSI-RS configuration is used to indicate a CSI-RS configuration of a special subframe, where each t The physical resource block PRB pair includes m n-port CSI-RS resources, and each n-port CSI-RS resource of the m n-port CSI-RS resources is aggregated by r w-port CSI-RS resources, n =r×w, t, m, n, r, w are all positive integers;

The processing unit is configured to determine a CSI-RS configuration of the special subframe according to the indication information of the CSI-RS configuration.

In a fifth aspect, a base station is provided, where the base station includes a processor, a memory, a bus, and a communication interface;

The memory is configured to store a computer to execute an instruction, the processor is connected to the memory through the bus, and when the base station is running, the processor executes the computer-executed instruction stored in the memory to make The method in which the base station performs the CSI-RS configuration as described in the first aspect.

In a sixth aspect, a user equipment UE is provided, where the UE includes a processor, a memory, a bus, and a communication interface;

The memory is configured to store a computer to execute an instruction, the processor is connected to the memory through the bus, and when the UE is running, the processor executes the computer-executed instruction stored in the memory to make A method in which a UE performs a CSI-RS configuration as described in the second aspect.

In any of the above first to sixth aspects, when n=2, n=2 ^X , the first n/ of each n-port CSI-RS resource of the m n-port CSI-RS resources The two ports form an n/2 port CSI-RS resource, and the n-1th port and the i th n/2 of the i th n port CSI-RS resource in the m n port CSI-RS resources The identifiers of the REs of the n/2-1th ports of the port CSI-RS resources are the same, 1 ≤ i ≤ m, and i and X are positive integers.

Further, in a possible implementation manner:

If the identifier of the RE of the n-1th port of the n-port CSI-RS resource is denoted as (k, l), k represents a frequency domain index, and l represents a time domain index; then when t=1, a cyclic prefix CP type When it is a normal CP, the n-1th port of the i-th n-port CSI-RS resource and the n/2th of the i-th n/2 port CSI-RS resource of the m n-port CSI-RS resources - The identity of the resource unit RE of the 1 port is the same, including:

When m=20 and n=2, the identifiers of the first 2-port CSI-RS resource to the first port of the 20th 2-port CSI-RS resource are (9, 2), (11, 5, respectively). ), (9,5), (7,5), (9,2), (8,2), (10,5), (8,5), (6,5), (8,2), (3,2), (2,2), (5,5), (4,5), (3,5), (2,5), (1,5), (0,5), (3 2), (2, 2), the RE is located in the radio frame, the number of the slot n _s modulo 2 operation is 0, 0, 0, 0, 1, 0, 0, 0, 0, 1, respectively , 0, 0, 0, 0, 0, 0, 0, 0, 1, 1;

When m=10 and n=4, the identifiers of the REs of the first 4-port CSI-RS resource to the third port of the 10th 4-port CSI-RS resource are (9, 2), (11, 5, respectively). ), (9,5), (7,5), (9,2), (8,2), (10,5), (8,5), (6,5), (8,2), value operation mode number n _s of the radio frame slot positioned RE 2 are 0,0,0,0,1,0,0,0,0,1;

When m=5, n=8, the identifiers of the REs of the first 8-port CSI-RS resource to the 7th port of the 5th 8-port CSI-RS resource are (9, 2), (11, 5, respectively). ), (9, 5), (7, 5), (9, 2), the RE is located in the radio frame, the number of the slot n _s modulo 2 operation is 0, 0, 0, 0, 1, respectively ;

When m=2, n=16, the identifiers of the REs of the first 16-port CSI-RS resource to the 15th port of the second 16-port CSI-RS resource are (9, 2), (11, 5, respectively). The value of the RE located in the radio frame in the number n _s modulo 2 operation is 0, 0.

Optionally, the first 16-port CSI-RS resource and the second 16-port CSI-RS resource may be aggregated by any one of the following configurations A1, B1, C1, D1, E1, and F1. :

Configuration A1: The first 16-port CSI-RS resource is aggregated from the third 8-port CSI-RS resource and the first 8-port CSI-RS resource, and the second 16-port CSI-RS resource is selected from the fifth 8 Port CSI-RS resources and a second 8-port CSI-RS resource are aggregated;

Configuration B1: The first 16-port CSI-RS resource is aggregated by the third 8-port CSI-RS resource and the first 8-port CSI-RS resource, and the second 16-port CSI-RS resource is composed of the fourth 8 Port CSI-RS resources and a second 8-port CSI-RS resource are aggregated;

Configuration C1: The first 16-port CSI-RS resource is aggregated from the 4th 8-port CSI-RS resource and the first 8-port CSI-RS resource, and the second 16-port CSI-RS resource is 5th. Port CSI-RS resources and a second 8-port CSI-RS resource are aggregated;

Configuration D1: The first 16-port CSI-RS resource is aggregated from the 4th 8-port CSI-RS resource and the first 8-port CSI-RS resource, and the second 16-port CSI-RS resource is 3rd. Port CSI-RS resources and a second 8-port CSI-RS resource are aggregated;

Configure E1: The first 16-port CSI-RS resource is aggregated by the fifth 8-port CSI-RS resource and the first 8-port CSI-RS resource, and the second 16-port CSI-RS resource is composed of the third 8 Port CSI-RS resources and a second 8-port CSI-RS resource are aggregated;

Configuration F1: The first 16-port CSI-RS resource is aggregated from the 5th 8-port CSI-RS resource and the first 8-port CSI-RS resource, and the second 16-port CSI-RS resource is 4th. The port CSI-RS resource is aggregated with the second 8-port CSI-RS resource.

Optionally, when m=3, n=12, r=3, and w=4, each n-port CSI-RS resource in the m n-port CSI-RS resources is configured by r w ports CSI-RS The resources are aggregated, including:

Each of the three 12-port CSI-RS resources is aggregated by three 4-port CSI-RS resources, wherein any two of the three 4-port CSI-RS resources are used. 4-port CSI-RS resources are aggregated into one 8-port CSI-RS resource; or,

Each of the three 12-port CSI-RS resources is aggregated by three 4-port CSI-RS resources, wherein any two of the three 12-port CSI-RS resources are used. The 12-port CSI-RS resources are respectively obtained by subtracting one 4-port CSI-RS resource from any one of the two 16-port CSI-RS resources, and the three 12-port CSI- One 12-port CSI-RS resource other than the any two 12-port CSI-RS resources in the RS resource is aggregated by three 4-port CSI-RS resources other than the any two 12-port CSI-RS resources. Made.

Another possible implementation:

If the identifier of the RE of the n-1th port of the n-port CSI-RS resource is denoted as (k, l), k represents a frequency domain index, and l represents a time domain index; then when t=1, the CP type is normal. In the case of the CP, the n-1th port of the i-th n-port CSI-RS resource and the n/2-1 of the i-th n/2 port CSI-RS resource among the m n-port CSI-RS resources The resource unit REs of the ports have the same identifier, including:

When m=12 and n=2, the identifiers of the first 2-port CSI-RS resource to the first port of the 12th 2-port CSI-RS resource are (11, 5), (9, 5, respectively). ), (7,5), (10,5), (8,5), (6,5), (5,5), (4,5), (3,5), (2,5), (1, 5), (0, 5), the RE is located in the radio frame, the number of the slot n _s modulo 2 operation is 0, 0, 0, 0, 0, 0, 0, 0, 0 , 0, 0, 0;

When m=6 and n=4, the identifiers of the REs of the first 4-port CSI-RS resource to the third port of the sixth 4-port CSI-RS resource are (11, 5), (9, 5, respectively). ), (7, 5), (10, 5), (8, 5), (6, 5), the RE is located in the radio frame, the number of the slot n _s modulo 2 operation is 0, 0 , 0, 0, 0, 0;

When m=3, n=8, the identifiers of the REs of the first 8-port CSI-RS resource to the 7th port of the 5th 8-port CSI-RS resource are (11, 5), (9, 5, respectively). (7, 5), the RE is located in the radio frame, the number of the slot n _s modulo 2 operation is 0, 0, 0;

When m=1, n=16, the identifier of the RE of the first 16-port CSI-RS resource is (9, 2), and the RE is located in the radio frame, the number of the slot is n _s , and the value after the modulo 2 operation is respectively Is 0.

Optionally, the first 16-port CSI-RS resource may be aggregated by using any one of the following configurations J1 and K1:

Configuration J1: The first 16-port CSI-RS resource is aggregated by the second 8-port CSI-RS resource and the first 8-port CSI-RS resource;

Configuration K1: The first 16-port CSI-RS resource is aggregated by the third 8-port CSI-RS resource and the first 8-port CSI-RS resource.

Optionally, when m=2, n=12, r=3, and w=4, each n-port CSI-RS resource in the m n-port CSI-RS resources is configured by r w ports CSI-RS The resources are aggregated, including:

Each of the two 12-port CSI-RS resources is aggregated by three 4-port CSI-RS resources, wherein any two of the three 4-port CSI-RS resources are used. 4-port CSI-RS resources are aggregated into one 8-port CSI-RS resource; or,

Each of the two 12-port CSI-RS resources is aggregated by three 4-port CSI-RS resources, wherein any one of the two 12-port CSI-RS resources is used. The 12-port CSI-RS resource is obtained by subtracting one 4-port CSI-RS resource from the one 16-port CSI-RS resource, and any one of the two 12-port CSI-RS resources except the any one of the 12-port CSI-RS resources One 12-port CSI-RS resource other than the RS resource is aggregated by three 4-port CSI-RS resources other than the arbitrary one-port 12-port CSI-RS resource.

Another possible implementation:

If the identifier of the RE of the n-1th port of the n-port CSI-RS resource is denoted as (k, l), k represents a frequency domain index, and l represents a time domain index; then when t=1, the CP type is an extension. When CP, the m The n-1th port of the i-th n-port CSI-RS resource and the n-2-1 port resource unit RE of the i-th n/2 port CSI-RS resource in the n-port CSI-RS resource The same logo, including:

When m=16 and n=2, the identifiers of the first 2-port CSI-RS resource to the first port of the 16th 2-port CSI-RS resource are (11, 4), (9, 4, respectively). ), (10,4), (9,4), (5,4), (3,4), (4,4), (3,4), (8,4), (6,4), (2,4), (0,4), (7,4), (6,4), (1,4), (0,4), the RE is located in the slot number of the radio frame n _s mode 2 The values after the operation are 0, 0, 1, 1, 0, 0, 1, 1, 0, 0, 0, 0, 1, 1, 1, 1;

When m=8 and n=4, the identifiers of the REs of the first 4-port CSI-RS resource to the third port of the eighth 4-port CSI-RS resource are (11, 4), (9, 4, respectively). ), (10,4), (9,4), (5,4), (3,4), (4,4), (3,4), the RE is located in the slot number n of the radio frame The values after _s modulo 2 operation are 0, 0, 1, 1, 0, 0, 1, 1 respectively;

When m=4, n=8, the identifiers of the REs of the first 8-port CSI-RS resource to the 7th port of the 4th 8-port CSI-RS resource are (11, 4), (9, 4, respectively). , (10, 4), (9, 4), the RE is located in the radio frame, the number of the slot n _s modulo 2 operation is 0, 0, 1, 1, respectively;

When m=2, n=16, the identifiers of the REs of the first 16-port CSI-RS resource to the 15th port of the second 16-port CSI-RS resource are (11, 4), (9, 4, respectively). The value of the RE located in the radio frame in the number n _s modulo 2 operation is 0, 0.

Optionally, the first 16-port CSI-RS resource and the second 16-port CSI-RS resource may be aggregated by using any one of the following configurations A2 and B2:

Configuration A2: The first 16-port CSI-RS resource is aggregated by the third 8-port CSI-RS resource and the first 8-port CSI-RS resource, and the second 16-port CSI-RS resource is composed of the fourth 8 Port CSI-RS resources and a second 8-port CSI-RS resource are aggregated;

Configuration B2: The first 16-port CSI-RS resource is aggregated from the 4th 8-port CSI-RS resource and the first 8-port CSI-RS resource, and the second 16-port CSI-RS resource is 3rd. The port CSI-RS resource is aggregated with the second 8-port CSI-RS resource.

Optionally, when m=2, n=12, r=3, and w=4, the m n-port CSI-RS resources Each n-port CSI-RS resource is aggregated by r w-port CSI-RS resources, including:

Each of the two 12-port CSI-RS resources is aggregated by three 4-port CSI-RS resources, wherein the two 12-port CSI-RS resources are respectively A 16-port CSI-RS resource is subtracted from a 4-port CSI-RS resource.

Another possible implementation:

If the identifier of the RE of the n-1th port of the n-port CSI-RS resource is denoted as (k, l), k represents a frequency domain index, and l represents a time domain index; then when t=1, the CP type is an extension. In the case of the CP, the n-1th port of the i-th n-port CSI-RS resource and the n/2-1 of the i-th n/2 port CSI-RS resource among the m n-port CSI-RS resources The resource unit REs of the ports have the same identifier, including:

When m=12 and n=2, the REs of the first 2-port CSI-RS resource to the first port of the 12th 2-port CSI-RS resource are (11, 1), (10, 1), respectively. (9,1), (5,1), (4,1), (3,1), (8,1), (7,1), (6,1), (2,1), (1 , 1), (0, 1), the RE is located in the radio frame, the number of the slot n _s modulo 2 operation, the values are 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, respectively 1,1;

When m=6 and n=4, the REs of the first 4-port CSI-RS resource to the third port of the sixth 4-port CSI-RS resource are (11, 1), (10, 1), respectively. (9,1), (5,1), (4,1), (3,1), the RE is located in the radio frame, the number of the slot n _s modulo 2 operation, the values are 1, 1, 1, respectively 1, 1, 1, 1;

When m=3, n=8, the REs of the first 8-port CSI-RS resource to the 7th port of the 5th 8-port CSI-RS resource are (11, 1), (10, 1), respectively. (9, 1), the RE is located in the radio frame, the number of the slot n _s modulo 2 operation after the value is 1, 1, 1;

When m=1, n=16, the RE of the first 16-port CSI-RS resource is (11, 1), and the RE is located in the radio frame, the number of the slot is n _s , and the value after the modulo 2 operation is 1 respectively. .

Optionally, the first 16-port CSI-RS resource may be aggregated by using any one of the following configurations E2 and F2:

Configure E2: the first 16-port CSI-RS resource is aggregated by the second 8-port CSI-RS resource and the first 8-port CSI-RS resource;

Configuration F2: The first 16-port CSI-RS resource is aggregated by the third 8-port CSI-RS resource and the first 8-port CSI-RS resource.

Another possible implementation:

When t=2, n=16, the first n/2 ports of each n-port CSI-RS resource of the m n-port CSI-RS resources constitute an n/2 port CSI-RS resource, Resources of the n-1th port of the i-th n-port CSI-RS resource and the n/2-1th port of the i-th n/2 port CSI-RS resource in the m n-port CSI-RS resources The identity of the unit RE is the same, including:

The i-th 16-port CSI-RS resource is aggregated by an i-th 8-port CSI-RS resource in a first PRB pair and an i-th 8-port CSI-RS resource in a second PRB pair;

Or the ith 16-port CSI-RS resource is the ith and i+P 4-port CSI-RS resources in the first PRB pair, and the ith and the second in the second PRB pair. i+P 4-port CSI-RS resources are aggregated, and P is the number of 8-port CSI-RS resources in each PRB pair;

Or the i-th 16-port CSI-RS resource is the i-th, i-th, i+th, and i-th+P+Q 4-port CSI-RS resources in the first PRB pair, And the i-th, i+Pth, i+th, and i+P+Q 4-port CSI-RS resource aggregations of the second PRB pair P is the number of 8-port CSI-RS resources in each PRB pair, and Q is the number of 4-port CSI-RS resources in each PRB pair.

The embodiment of the present invention provides a related solution for configuring a CSI-RS in a special subframe. The method, the related device, and the system for configuring a CSI-RS according to the embodiment of the present invention may configure a CSI-RS in a special subframe.

In a seventh aspect, a method for configuring a channel state information reference signal CSI-RS is provided, the method comprising:

Determining, by the base station, a CSI-RS configuration of a downlink transmission subframe, where the CSI-RS configuration includes an identifier of a resource unit RE of the CSI-RS, where each of the physical resource block PRB pairs includes m n-port CSI-RSs The n-port CSI-RS resource of the m n-port CSI-RS resources is aggregated by p q-port CSI-RS resources. When m≥2, there are at least two n-port CSI-RSs. The s q-port CSI-RS resources in the resource are the same, and the downlink transmission subframe includes a special subframe or a downlink subframe, and 1≤s<p, n>q, m, n, t, p, q, s Is a positive integer;

The base station sends the indication information of the CSI-RS configuration to the user equipment UE, where the indication information of the CSI-RS configuration is used to indicate the CSI-RS configuration of the downlink transmission subframe.

In an eighth aspect, a method for configuring a channel state information reference signal CSI-RS is provided, the method comprising:

The user equipment UE receives the indication information of the CSI-RS configuration sent by the base station, where the indication information of the CSI-RS configuration is used to indicate the CSI-RS configuration of the downlink transmission subframe, where the per-physical resource block PRB pair includes m Each n-port CSI-RS resource of the n-port CSI-RS resources is aggregated by p q-port CSI-RS resources, and when m≥2, there are at least two The s q-port CSI-RS resources in the n-port CSI-RS resources are the same, and the downlink transmission subframe includes a special subframe or a downlink subframe, 1≤s<p, n>q, m, n, t, p, q, s are all positive integers;

The UE determines a CSI-RS configuration of the downlink transmission subframe according to the indication information of the CSI-RS configuration.

A ninth aspect, a base station is provided, where the base station includes: a processing unit and a sending unit;

The processing unit is configured to determine a channel state information reference signal CSI-RS configuration of a downlink transmission subframe, where the CSI-RS configuration includes an identifier of a resource unit RE of the CSI-RS, Each of the m physical resource block PRB pairs includes m n-port CSI-RS resources, and each of the m n-port CSI-RS resources is configured by p q-port CSI-RS resources. Agized, when m≥2, there are s q-port CSI-RS resources in at least two n-port CSI-RS resources, and the downlink transmission subframe includes a special subframe or a downlink subframe, 1≤s <p,n>q, m, n, t, p, q, s are all positive integers;

The sending unit is configured to send, to the user equipment UE, the indication information of the CSI-RS configuration, where the indication information of the CSI-RS configuration is used to indicate a CSI-RS configuration of the downlink transmission subframe.

A tenth aspect, a user equipment UE is provided, where the UE includes: a receiving unit and a processing unit;

The receiving unit is configured to receive indication information of a channel state information reference signal CSI-RS configuration sent by the base station, where the indication information of the CSI-RS configuration is used to indicate a CSI-RS configuration of the downlink transmission subframe, where each t The physical resource block PRB pair includes m n-port CSI-RS resources, and each n-port CSI-RS resource of the m n-port CSI-RS resources is aggregated by p q-port CSI-RS resources. When m≥2, there are s q-port CSI-RS resources in at least two n-port CSI-RS resources, and the downlink transmission subframe includes a special subframe or a downlink subframe, 1≤s<p,n >q, m, n, t, p, q, s are all positive integers;

The processing unit is configured to determine a CSI-RS configuration of the downlink transmission subframe according to the indication information of the CSI-RS configuration.

In an eleventh aspect, a base station is provided, the base station comprising a processor, a memory, a bus, and a communication interface;

The memory is configured to store a computer to execute an instruction, the processor is connected to the memory through the bus, and when the base station is running, the processor executes the computer-executed instruction stored in the memory to make A method in which a base station performs a CSI-RS configuration as described in the seventh aspect.

A twelfth aspect, a user equipment UE is provided, where the UE includes a processor, a memory, a bus, and a communication interface;

The memory is configured to store computer execution instructions, the processor is coupled to the memory via the bus, and when the UE is running, the processor executes the memory storage The computer executes instructions to cause the UE to perform the method of CSI-RS configuration as described in the eighth aspect.

The embodiment of the present invention provides a related solution for configuring a CSI-RS in a downlink transmission subframe. The CSI-RS configuration method and related device provided by the embodiment of the present invention may configure a CSI-RS in a special subframe. The CSI-RS may be configured in the downlink subframe when the number of antenna ports is greater than 8.

DRAWINGS

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the embodiments or the description of the prior art will be briefly described below. Obviously, the drawings in the following description are only It is a certain embodiment of the present invention, and other drawings can be obtained from those skilled in the art without any inventive labor.

FIG. 1 is a system architecture diagram of a CSI-RS configuration according to an embodiment of the present invention;

2 is a schematic flowchart 1 of a method for configuring a CSI-RS according to an embodiment of the present invention;

FIG. 3 is a schematic diagram 1 of a configuration pattern of a CSI-RS according to an embodiment of the present disclosure;

FIG. 4 is a schematic diagram 2 of a configuration pattern of a CSI-RS according to an embodiment of the present disclosure;

FIG. 5 is a schematic diagram 3 of a configuration pattern of a CSI-RS according to an embodiment of the present disclosure;

FIG. 6 is a schematic diagram 4 of a configuration pattern of a CSI-RS according to an embodiment of the present disclosure;

FIG. 7 is a schematic diagram 5 of a configuration pattern of a CSI-RS according to an embodiment of the present disclosure;

FIG. 8 is a schematic diagram 6 of a configuration pattern of a CSI-RS according to an embodiment of the present disclosure;

FIG. 9 is a schematic diagram 7 of a configuration pattern of a CSI-RS according to an embodiment of the present invention;

FIG. 10 is a schematic diagram 8 of a configuration pattern of a CSI-RS according to an embodiment of the present invention;

FIG. 11 is a schematic diagram 9 of a configuration pattern of a CSI-RS according to an embodiment of the present invention;

FIG. 12 is a schematic diagram 10 of a configuration pattern of a CSI-RS according to an embodiment of the present invention;

FIG. 13 is a schematic diagram 11 of a configuration pattern of a CSI-RS according to an embodiment of the present invention;

FIG. 14 is a schematic diagram 12 of a configuration pattern of a CSI-RS according to an embodiment of the present disclosure;

FIG. 15 is a schematic diagram of a configuration pattern of a CSI-RS according to an embodiment of the present invention;

FIG. 16 is a schematic diagram showing a configuration pattern of a CSI-RS according to an embodiment of the present invention; FIG.

FIG. 17 is a schematic diagram of a configuration pattern of a CSI-RS according to an embodiment of the present invention;

FIG. 18 is a schematic diagram 16 of a configuration pattern of a CSI-RS according to an embodiment of the present invention; FIG.

FIG. 19 is a schematic diagram of a configuration pattern of a CSI-RS according to an embodiment of the present invention;

FIG. 20 is a schematic diagram of a configuration pattern of a CSI-RS according to an embodiment of the present invention;

FIG. 21 is a schematic diagram of a configuration pattern of a CSI-RS according to an embodiment of the present invention;

FIG. 22 is a schematic diagram of a configuration pattern of a CSI-RS according to an embodiment of the present invention; FIG.

FIG. 23 is a schematic diagram of a configuration pattern of a CSI-RS according to an embodiment of the present invention;

FIG. 24 is a schematic diagram of a configuration pattern of a CSI-RS according to an embodiment of the present invention;

FIG. 25 is a schematic diagram of a configuration pattern of a CSI-RS according to an embodiment of the present invention;

FIG. 26 is a schematic diagram of a configuration pattern of a CSI-RS according to an embodiment of the present invention;

FIG. 27 is a schematic diagram of a configuration pattern of a CSI-RS according to an embodiment of the present invention;

28 is a schematic diagram of a configuration pattern of a CSI-RS according to an embodiment of the present invention;

FIG. 29 is a schematic diagram of a configuration pattern of a CSI-RS according to an embodiment of the present invention;

FIG. 30 is a schematic diagram of a configuration pattern of a CSI-RS according to an embodiment of the present invention;

FIG. 31 is a schematic diagram of a configuration pattern of a CSI-RS according to an embodiment of the present invention;

32 is a schematic diagram of a configuration pattern of a CSI-RS according to an embodiment of the present invention;

33 is a schematic diagram of a configuration pattern of a CSI-RS according to an embodiment of the present invention;

FIG. 34 is a schematic diagram of a configuration pattern of a CSI-RS according to an embodiment of the present invention;

FIG. 35 is a schematic diagram of a configuration pattern of a CSI-RS according to an embodiment of the present invention;

FIG. 36 is a second schematic flowchart of a method for configuring a CSI-RS according to an embodiment of the present disclosure;

37 is a schematic structural diagram 1 of a base station according to an embodiment of the present invention;

FIG. 38 is a schematic structural diagram 1 of a UE according to an embodiment of the present disclosure;

FIG. 39 is a schematic structural diagram 2 of a base station according to an embodiment of the present disclosure;

FIG. 40 is a schematic structural diagram 2 of a UE according to an embodiment of the present invention.

detailed description

For a clear and concise description of the following embodiments, a brief introduction of the related art is first given:

In the LTE or advanced long-term evolution (LTE: LTE-A) system, the downlink multiple access method usually adopts orthogonal frequency division multiplexing multiple access (English: Or thogonal Frequency Division Multiple Access, Abbreviation: OFDMA) mode. The downlink resources of the system are divided into Orthogonal Frequency Division Multiplexing (OFDM) symbols in terms of time, and are divided into subcarriers in terms of frequency. According to the LTE standard, one radio frame contains 10 subframes, one subframe is 1 ms long, and the subframe of each radio frame is numbered 0-9. One sub-frame contains two time slots (English: slot). In the case of a regular cyclic prefix (English: Cyclic Prefix, CP for short), each time slot contains 7 OFDM symbols, numbered 0-6; in the case of extended CP Each slot contains 6 OFDM symbols, numbered 0-5. A time-frequency resource composed of one OFDM symbol and one subcarrier is called a resource element (English: Resource Element, abbreviated as RE). The size of a physical resource block (English: Physical Resource Block, PRB for short) is defined as one time slot in time and 180 kHz in the frequency domain. When the subcarrier spacing is 15 kHz, one PRB contains 12 subcarriers in frequency, and at this time, one PRB contains a total of 84 or 72 REs. The PRB is numbered in the frequency domain, which is the PRB index. A PRB pair is defined as a pair of PRBs having the same PRB index of two slots on one subframe.

The LTE system supports two frame structures: Type1 and Type2, where Type1 is used for Frequency Division Duplexing (English: Frequency Division Duplexing, FDD for short) and Type 2 is used for Time Division Duplexing (TDD). For the frame structure Type1 of the FDD, each subframe included in a 10 ms radio frame can be used for both downlink transmission and uplink transmission. For the frame structure Type 2 of the TDD, a subframe included in a 10 ms radio frame is either a downlink subframe, an uplink subframe, or a special subframe. Which subframe is a downlink subframe, an uplink subframe, or a special subframe is determined by the TDD uplink and downlink configuration. LTE currently supports seven different TDD uplink and downlink configurations, as shown in Table 1, where D represents a downlink subframe for downlink transmission, S represents a special subframe, and U represents an uplink subframe.

Table I

The special subframe includes a downlink pilot time slot (English: Downlink Pilot Time Slot, referred to as DwPTS), a guard time (English: Guard Period, abbreviated as GP), and an uplink pilot time slot (English: Uplink Pilot Time Slot) , referred to as: UpPTS) three parts, GP is mainly used for downlink to uplink conversion time and propagation delay compensation. In addition, downlink data can be transmitted in the DwPTS, but uplink data cannot be transmitted in the UpPTS. The length of the UpPTS and DwPTS is determined by the special subframe configuration, as shown in Table 2. Where T _s is a time unit, T _s =1/(15000x2048) seconds.

Table II

The technical solutions in the embodiments of the present invention will be described below with reference to the accompanying drawings in the embodiments of the present invention. It is obvious that the described embodiments are only a part of the embodiments of the present invention, instead of All embodiments. In the following description, for purposes of explanation and description In some embodiments, detailed descriptions of well-known devices, circuits, and methods are omitted so as not to obscure the description in unnecessary detail. Throughout the description, the same reference numerals and the same names refer to the same or similar elements.

In order to facilitate the clear description of the technical solutions of the embodiments of the present invention, in the embodiments of the present invention, the words "first", "second" and the like are used to distinguish the same or similar items whose functions and functions are substantially the same, in the field. The skilled person will understand that the words "first", "second" and the like do not limit the number and order of execution.

The present invention is mainly applied to an LTE system, or an advanced long-term evolution (English: LTE Advanced, LTE-A) system, or a future version of a continuation-evolved communication system or other mobile communication system, etc. Specifically limited. As long as the user equipment (English: User Equipment, UE) and the base station are present in the communication system, the base station needs to send the CSI-RS configuration indication information to the UE, and the UE needs to receive the indication information of the CSI-RS configuration sent by the base station. As shown in FIG. 1, the base station and the UE1-UE6 form a communication system, in which the base station needs to send the CSI-RS configuration indication information to the UE1-UE6, and the UE1-UE6 needs to receive the CSI-RS configuration sent by the base station. Instructions.

It should be noted that the base station in the embodiment of the present invention may be a NodeB or an evolved NodeB (English: Evolved NodeB, eNB for short), which is not specifically limited in this embodiment of the present invention.

Based on the above communication system, an embodiment of the present invention provides a method for configuring a CSI, as shown in FIG. 2, including:

S201. The base station determines a CSI-RS configuration of a special subframe, where the CSI-RS configuration includes an identifier of an RE of the CSI-RS.

Each of the m PRB pairs includes m n-port CSI-RS resources, and each n-port CSI-RS resource of the m n-port CSI-RS resources is aggregated by r w-port CSI-RS resources. , n=r×w, t, m, n, r, and w are all positive integers.

S202. The base station sends the indication information of the CSI-RS configuration to the UE, where the indication information of the CSI-RS configuration is used to indicate a CSI-RS configuration of the special subframe.

S203. The UE receives the indication information of the CSI-RS configuration sent by the base station.

S204. The UE determines, according to the indication information of the CSI-RS configuration, a CSI-RS configuration of the special subframe.

Specifically, in the embodiment of the present invention, when r=2, n=2 ^X , the first n/2 ports of each n-port CSI-RS resource of the m n-port CSI-RS resources form a n/2 port CSI-RS resource, the n-1th port of the i-th n-port CSI-RS resource and the i-th n/2 port CSI-RS resource of the m n-port CSI-RS resources The identifiers of the REs of the n/2-1th port are the same, 1≤i≤m, and both i and X are positive integers.

In the embodiment of the present invention, when the CP type is a normal CP, in a possible implementation manner:

When m=20 and n=2, the identifiers of the first 2-port CSI-RS resource to the first port of the 20th 2-port CSI-RS resource are (9, 2), (11, 5, respectively). ), (9,5), (7,5), (9,2), (8,2), (10,5), (8,5), (6,5), (8,2), (3,2), (2,2), (5,5), (4,5), (3,5), (2,5), (1,5), (0,5), (3 2), (2, 2), the RE is located in the radio frame, the number of the slot n _s modulo 2 (ie, n _s mod 2), the values after operation are 0, 0, 0, 0, 1, 0, respectively 0, 0, 0, 1, 0, 0, 0, 0, 0, 0, 0, 0, 1, 1;

The identifier of the RE of the CSI-RS in the CSI-RS configuration of the special subframe may be as shown in Table 3.

Table 3

It should be noted that the number order corresponding to the CSI-RS configuration column in Table 3 above corresponds to the order of the following port CSI-RS resources. For example, the 2-port CSI-RS resource with the CSI configuration 0 is the first 2 ports. The CSI-RS resource, the 2-port CSI-RS resource with the CSI configured as 1 is the second 2-port CSI-RS resource, and so on, and will not be repeated here.

Table 3 below shows the configuration pattern of 20 2-port CSI-RS resources corresponding to the CP type of the normal subframe, the configuration pattern of 10 4-port CSI-RS resources, and the five 8-port CSI- The configuration patterns of RS resources are shown in Figure 3-5.

It should be noted that, in the configuration pattern of the CSI-RS shown in FIG. 3-35 in the embodiment of the present invention, in the RE including the number, the multiple numbers of the same padding correspond to one multi-port CSI-RS resource. In the RE that does not include the number, the pattern padding is used to indicate that the OFDM symbol is not occupied. For example, in FIG. 3, the last three OFDM symbols are filled, indicating that the last three OFDM symbols are not occupied, and the following description is unified. Will not be repeated one by one.

It should be noted that, in the configuration pattern of the CSI-RS shown in FIG. 3-35 in the embodiment of the present invention, the upper dotted line and the lower dotted line respectively represent the omission of the configuration pattern corresponding to the resources of other PRBs on the bandwidth resource, where Uniform instructions, the following will not be repeated.

Optionally, in combination with Table 3, the first 16-port CSI-RS resource and the second 16-port CSI-RS resource may be configured by any one of the following: A1, B1, C1, D1, E1, and F1. Configure the aggregation:

Configure C1: The first 16-port CSI-RS resource consists of the 4th 8-port CSI-RS resource. And the first 8-port CSI-RS resource is aggregated, and the second 16-port CSI-RS resource is aggregated by the fifth 8-port CSI-RS resource and the second 8-port CSI-RS resource;

The configuration patterns corresponding to the configurations A1-F1 are as shown in FIG. 6 to FIG. 11, respectively.

Optionally, in combination with Table 3, when m=3, n=12, r=3, and w=4, each n-port CSI-RS resource in the m n-port CSI-RS resources is r w Port CSI-RS resources are aggregated, including:

Exemplarily, the configuration pattern of the 10 types of 4-port CSI-RS resources shown in FIG. 4 is taken as an example, and the configuration patterns of the three types of 12-port CSI-RS resources are respectively shown in FIG. 12 and FIG.

In FIG. 12, the first 12-port CSI-RS resource is aggregated by the sixth 4-port CSI-RS resource, the first 4-port CSI-RS resource, and the ninth 4-port CSI-RS resource. The sixth 4-port CSI-RS resource and the first 4-port CSI-RS resource are aggregated into one 8-port CSI-RS resource; the second 12-port CSI-RS resource is configured by the seventh 4-port CSI-RS. The resource, the second 4-port CSI-RS resource, and the fifth 4-port CSI-RS resource are aggregated, wherein the seventh 4-port CSI-RS resource and the second 4-port CSI-RS resource are aggregated into one. 8-port CSI-RS resource; the third 12-port CSI-RS resource is aggregated by the 8th 4-port CSI-RS resource, the 3rd 4-port CSI-RS resource, and the 10th 4-port CSI-RS resource. The eighth 4-port CSI-RS resource and the third 4-port CSI-RS resource are aggregated into one 8-port CSI-RS resource.

If (a, b, c) represents a 12-port CSI-RS configuration that is aggregated by the a, b, and c 4-port CSI-RS configurations, the a-th is the first in the port number order. 4-port CSI-RS resource, re-editing the b-th 4-port CSI-RS resource, and then coding the c-th 4-port CSI-RS resource, the configuration pattern shown in Figure 12 can be recorded as (6, 1, 9), (7, 2, 5) and (8, 3, 10).

Of course, the combination of the configuration patterns of the three types of 12-port CSI-RS resources may also be (6, 1, 9), (7, 2, 5) and (8, 3, 4), or (6, 1, 4). ), (7, 2, 5) and (8, 3, 10), or (6, 1, 4), (7, 2, 5) and (8, 3, 9), etc., as long as they meet the stated The conditions for the aggregation of any two 4-port CSI-RS resources of the three 4-port CSI-RS resources into one 8-port CSI-RS resource are not listed here.

In FIG. 13, the first 12-port CSI-RS resource is obtained by subtracting the last 4-port CSI-RS resource from the first 16-port CSI-RS resource shown in FIG. 6, and the second 12-port is obtained. The CSI-RS resource is obtained by subtracting the last one 4-port CSI-RS resource from the second 16-port CSI-RS resource, and the third 12-port CSI-RS resource is included in the remaining four 4-port CSI-RS resources. Three 4-port CSI-RS resources are aggregated.

Certainly, the combination of the configuration patterns of the three types of 12-port CSI-RS resources may be other. FIG. 13 is only an exemplary description as long as any two 12-port CSI-RSs of the three 12-port CSI-RS resources are met. The resources are respectively obtained by subtracting one 4-port CSI-RS resource from any one of the two 16-port CSI-RS resources, and the three 12-port CSI-RS resources are excluded. One 12-port CSI-RS resource other than any two 12-port CSI-RS resources, and three 4-ports other than the any two 12-port CSI-RS resources. The conditions for the aggregation of the CSI-RS resources are sufficient, and the embodiments of the present invention are not enumerated here.

In the embodiment of the present invention, when the CP type is a normal CP, another possible implementation manner is as follows:

The identifier of the RE of the CSI-RS in the CSI-RS configuration of the special subframe may be as shown in Table 4.

Table 4

It should be noted that the number order corresponding to the CSI-RS configuration column in Table 4 corresponds to the following sequence of port CSI-RS resources. For example, the 2-port CSI-RS resource with CSI configuration 20 is the first 2 ports. The CSI-RS resource, the 2-port CSI-RS resource with the CSI configured to 21 is the second 2-port CSI-RS resource, and so on, and will not be repeated here.

Table 4 below shows the configuration pattern of 12 types of 2-port CSI-RS resources corresponding to the CP type of the normal subframe, the configuration pattern of the six 4-port CSI-RS resources, and the three 8-port CSI- The configuration pattern of the RS resources is shown in Figure 14-16.

Optionally, in combination with Table 4, the first 16-port CSI-RS resource may be aggregated by using any one of the following configurations J1 and K1:

Configure J1: The first 16-port CSI-RS resource consists of the 2nd 8-port CSI-RS resource and The first 8-port CSI-RS resource is aggregated;

The configuration patterns corresponding to the configurations J1 and K1 are as shown in FIG. 17 and FIG. 18, respectively.

It should be noted that, in Table 4, the 16-port CSI-RS resource is indicated by the RE position of the 15th port. Of course, the 16-port CSI-RS resource can also pass ((9, 5), (11, 5). In the manner of (or (7, 5), (11, 5)), where (9, 5) or (7, 5) corresponds to the location of the RE of port 6 (ie, the 7th port) The (11, 5) corresponds to the location of the RE of the port 14 (ie, the 15th port). The method for indicating the CSI-RS resource in the embodiment of the present invention is not specifically limited.

Certainly, the CSI-RS resources of the other port numbers may also be indicated by the foregoing method, which is not specifically limited in this embodiment of the present invention.

Optionally, in combination with Table 4, when m=2, n=12, r=3, and w=4, each n-port CSI-RS resource in the m n-port CSI-RS resources is r w Port CSI-RS resources are aggregated, including:

Exemplarily, the configuration pattern of the six 4-port CSI-RS resources shown in FIG. 15 is taken as an example, and the configuration patterns of the two types of 12-port CSI-RS resources are respectively shown in FIG. 19 and FIG.

In FIG. 19, the first 12-port CSI-RS resource is aggregated by the fourth 4-port CSI-RS resource, the first 4-port CSI-RS resource, and the fifth 4-port CSI-RS resource. The fourth 4-port CSI-RS resource and the first 4-port CSI-RS resource are aggregated into one. 8-port CSI-RS resources; the second 12-port CSI-RS resource is aggregated by the 6th 4-port CSI-RS resource, the 3rd 4-port CSI-RS resource, and the second 4-port CSI-RS resource The sixth 4-port CSI-RS resource and the third 4-port CSI-RS resource are aggregated into one 8-port CSI-RS resource.

If (a, b, c) represents a 12-port CSI-RS configuration that is aggregated by the a, b, and c 4-port CSI-RS configurations, the a-th is the first in the port number order. 4-port CSI-RS resource, re-editing the b-th 4-port CSI-RS resource, and then coding the c-th 4-port CSI-RS resource, the configuration pattern shown in Figure 19 can be recorded as (4, 1, 5) and (6,3,2).

Of course, the combination of the configuration patterns of the two types of 12-port CSI-RS resources may also be (4, 1, 3) and (5, 2, 6), etc., as long as the three 4-port CSI-RS resources are met. The conditions for the aggregation of any two 4-port CSI-RS resources into one 8-port CSI-RS resource are not listed here.

In FIG. 20, the first 12-port CSI-RS resource is obtained by subtracting the last 4-port CSI-RS resource from the first 16-port CSI-RS resource shown in FIG. 17, and the second 12-port is obtained. The CSI-RS resource is aggregated from the remaining three 4-port CSI-RS resources.

Certainly, the combination of the configuration patterns of the two types of 12-port CSI-RS resources may be other, and FIG. 20 is only an exemplary description as long as any one of the two 12-port CSI-RS resources is consistent with one of the 12-port CSI-RS resources. The resource is obtained by subtracting one 4-port CSI-RS resource from the one 16-port CSI-RS resource, and the two 12-port CSI-RS resources are not included in any one of the 12-port CSI-RS resources. The condition that the one 12-port CSI-RS resource is aggregated by the three 4-port CSI-RS resources except the any one of the 12-port CSI-RS resources may be used in the embodiment of the present invention. List.

In the embodiment of the present invention, when the CP type is an extended CP, in a possible implementation manner:

If the identifier of the RE of the n-1th port of the n-port CSI-RS resource is denoted as (k, l), k represents a frequency domain index, and l represents a time domain index; then when t=1, the CP type is an extension. In the case of the CP, the n-1th port of the i-th n-port CSI-RS resource and the n/2-1 of the i-th n/2 port CSI-RS resource among the m n-port CSI-RS resources The resource unit RE of each port has the same identifier. include:

The identifier of the RE of the CSI-RS in the CSI-RS configuration of the special subframe may be as shown in Table 5.

Table 5

It should be noted that the number sequence corresponding to the CSI-RS configuration column in Table 5 above corresponds to the following sequence of port CSI-RS resources. For example, the 2-port CSI-RS resource with CSI configured to 0 is the first 2 ports. The CSI-RS resource, the 2-port CSI-RS resource with the CSI configured as 1 is the second 2-port CSI-RS resource, and so on, and will not be repeated here.

Table 5 below shows the configuration pattern of 16 2-port CSI-RS resources corresponding to the CP type extended CP, and the configuration pattern of 8 4-port CSI-RS resources and 4 8-port CSI- The configuration pattern of the RS resources is shown in Figure 21-23.

Optionally, in combination with Table 5, the first 16-port CSI-RS resource and the second 16-port CSI-RS resource may be aggregated by using any one of the following configurations A2 and B2:

Configure B2: The first 16-port CSI-RS resource consists of the 4th 8-port CSI-RS resource. And the first 8-port CSI-RS resource is aggregated, and the second 16-port CSI-RS resource is aggregated by the third 8-port CSI-RS resource and the second 8-port CSI-RS resource.

The configuration patterns corresponding to the configurations A2 and B2 are as shown in FIG. 24 and FIG. 25, respectively.

Optionally, in combination with Table 5, when m=2, n=12, r=3, and w=4, each n-port CSI-RS resource in the m n-port CSI-RS resources is r w Port CSI-RS resources are aggregated, including:

Exemplarily, the configuration pattern of the eight 4-port CSI-RS resources shown in FIG. 22 is taken as an example, and the configuration patterns of the two types of 12-port CSI-RS resources are respectively shown in FIG. 26 and FIG.

In FIG. 26, the first 12-port CSI-RS resource is aggregated by the sixth 4-port CSI-RS resource, the second 4-port CSI-RS resource, and the first 4-port CSI-RS resource. The sixth 4-port CSI-RS resource and the second 4-port CSI-RS resource are aggregated into one 8-port CSI-RS resource; the second 12-port CSI-RS resource is configured by the 8th 4-port CSI-RS The resource, the fourth 4-port CSI-RS resource, and the third 4-port CSI-RS resource are aggregated, wherein the eighth 4-port CSI-RS resource and the fourth 4-port CSI-RS resource are aggregated into one. 8-port CSI-RS resource.

If (a, b, c) represents a 12-port CSI-RS configuration that is aggregated by the a, b, and c 4-port CSI-RS configurations, the a-th is the first in the port number order. 4-port CSI-RS resource, re-editing the b-th 4-port CSI-RS resource, and then coding the c-th 4-port CSI-RS resource, the configuration pattern shown in Figure 26 can be recorded as (6, 2, 1) and (8, 4, 3).

Of course, the combination of the configuration patterns of the two types of 12-port CSI-RS resources may also be (5, 1, 2) and (7, 3, 4), etc., as long as the three 4-port CSI-RS resources are met. The condition that any two 4-port CSI-RS resources are aggregated into one 8-port CSI-RS resource can be used. The embodiments are not enumerated here.

In FIG. 27, the first 12-port CSI-RS resource is obtained by subtracting the last 4-port CSI-RS resource from the first 16-port CSI-RS resource shown in FIG. 24, and the second 12-port. The CSI-RS resource is obtained by subtracting the last 4-port CSI-RS resource from the second 16-port CSI-RS resource.

Certainly, the combination of the configuration patterns of the two types of 12-port CSI-RS resources may also be other. FIG. 20 is only an exemplary description, as long as the two 12-port CSI-RS resources are met by the two 16-port CSI- The conditions of the RS resource minus one 4-port CSI-RS resource may be used, and the embodiments of the present invention are not enumerated here.

It should be noted that, in the embodiment of the present invention, when m=2, n=16, r=2, and w=4, each n-port CSI-RS resource in the m n-port CSI-RS resources is configured by The r-port CSI-RS resources are aggregated, and may also include:

The 16-port CSI-RS resource of the two 16-port CSI-RS resources can be aggregated by any one of the following configurations A and B:

Configuration A: The first 16-port CSI-RS resource is aggregated by the first 8-port CSI-RS resource and the second 8-port CSI-RS resource, and the second 16-port CSI-RS resource is composed of the third 8 The port CSI-RS resource is aggregated with the fourth 8-port CSI-RS resource;

Configuration B: The first 16-port CSI-RS resource is aggregated by the first 8-port CSI-RS resource and the ith 8-port CSI-RS resource, and the second 16-port CSI-RS resource is composed of the second 8 The port CSI-RS resource and the j-th 8-port CSI-RS resource are aggregated, i=3 or 4, j=3 or 4, i≠j.

The foregoing implementation manners are not specifically limited in the embodiment of the present invention.

In the embodiment of the present invention, when the CP type is an extended CP, another possible implementation manner is as follows:

The identifier of the RE of the CSI-RS in the CSI-RS configuration of the special subframe may be as shown in Table 6.

Table 6

It should be noted that the number order corresponding to the CSI-RS configuration column in Table 6 corresponds to the following sequence of port CSI-RS resources. For example, the 2-port CSI-RS resource with the CSI configuration of 16 is the first 2 ports. For a CSI-RS resource, a 2-port CSI-RS resource with a CSI configured at 17 is the second 2-port CSI-RS resource, and so on, and will not be repeated here.

Table 6 below shows the configuration pattern of 12 2-port CSI-RS resources corresponding to the CP type extended CP, and the configuration pattern of 6 4-port CSI-RS resources and three 8-port CSI- The configuration pattern of the RS resources is shown in Figure 28-30.

Optionally, in combination with Table 6, the first 16-port CSI-RS resource may be aggregated by using any one of the following configurations E2 and F2:

The configuration patterns corresponding to the configurations E2 and F2 are respectively shown in FIG. 31 and FIG.

It should be noted that, in Table 6, the 16-port CSI-RS resource is indicated by the RE position of the 15th port. Of course, the 16-port CSI-RS resource can also pass ((10, 1), (11, 1) In the manner of (or (9, 1), (11, 1)), where (10, 1) or (9, 1) corresponds to the location of the RE of port 6 (ie, the 7th port) The (11, 1) corresponds to the location of the RE of the port 14 (ie, the 15th port). The method for indicating the CSI-RS resource in the embodiment of the present invention is not specifically limited.

Optionally, in combination with Table 6, when m=2, n=12, r=3, and w=4, each n-port CSI-RS resource in the m n-port CSI-RS resources is r w Port CSI-RS resource aggregation Made up, including:

Exemplarily, the configuration pattern of the six 4-port CSI-RS resources shown in FIG. 29 is taken as an example, and the configuration patterns of the two types of 12-port CSI-RS resources are respectively shown in FIG. 33 and FIG.

In FIG. 33, the first 12-port CSI-RS resource is aggregated by the fifth 4-port CSI-RS resource, the second 4-port CSI-RS resource, and the fourth 4-port CSI-RS resource. The fifth 4-port CSI-RS resource and the second 4-port CSI-RS resource are aggregated into one 8-port CSI-RS resource; the second 12-port CSI-RS resource is configured by the sixth 4-port CSI-RS. The resource, the third 4-port CSI-RS resource, and the first 4-port CSI-RS resource are aggregated, wherein the sixth 4-port CSI-RS resource and the third 4-port CSI-RS resource are aggregated into one. 8-port CSI-RS resource.

If (a, b, c) represents a 12-port CSI-RS configuration that is aggregated by the a, b, and c 4-port CSI-RS configurations, the a-th is the first in the port number order. 4-port CSI-RS resource, re-editing the b-th 4-port CSI-RS resource, and then coding the c-th 4-port CSI-RS resource, the configuration pattern shown in Figure 33 can be recorded as (5, 2, 4) and (6,3,1).

Of course, the combination of the configuration patterns of the two types of 12-port CSI-RS resources may also be (5, 2, 1) and (6, 3, 4), etc., as long as the three 4-port CSI-RS resources are met. The conditions for the aggregation of any two 4-port CSI-RS resources into one 8-port CSI-RS resource are not listed here.

In FIG. 34, the first 12-port CSI-RS resource is the first shown in FIG. The 16-port CSI-RS resource is obtained by subtracting the last 4-port CSI-RS resource, and the second 12-port CSI-RS resource is aggregated from the remaining three 4-port CSI-RS resources.

Optionally, the 12-port CSI-RS resource may be aggregated by six 2-port CSI-RS resources, wherein the six 2-port CSI-RS resources constituting the 12-port are composed of the three 4-port CSIs that constitute the 12-port. - RS resource disassembly is obtained because each of the 4-port CSI-RS resources is aggregated by two 2-port CSI-RS resources. Therefore, the case where six 2-port CSI-RS resource aggregations get 12 ports is not enumerated here.

Preferably, in the embodiment of the present invention, the CSI-RS configuration of the special subframe may also be performed based on multiple PRB pairs (ie, t≥2). Specifically, when t=2, n=16, the first n/2 ports of each n-port CSI-RS resource of the m n-port CSI-RS resources form an n/2 port CSI-RS The n-1th port of the i-th n-port CSI-RS resource and the n/2-1th of the i-th n/2 port CSI-RS resource of the m n-port CSI-RS resources The resource element RE of the port has the same identifier, including:

Or the i-th 16-port CSI-RS resource is the i-th, i-th, i+th, and i-th+P+Q 4-port CSI-RS resources in the first PRB pair, And the i-th, i+P, i+Q, and i+P+Q 4-port CSI-RS resources in the second PRB pair In combination, P is the number of 8-port CSI-RS resources in each PRB pair, and Q is the number of 4-port CSI-RS resources in each PRB pair.

Exemplarily, FIG. 35 is a configuration pattern of three 16-port CSI-RS resources of two PRB pairs, and a left side is a resource position and a port number of the first eight ports of each 16-port CSI-RS resource, and the right side Indicates the resource location and port number for the last 8 ports of each 16-port CSI-RS resource.

The embodiment of the present invention provides a related solution for configuring a CSI-RS in a special subframe. According to the CSI-RS configuration method provided by the embodiment of the present invention, a CSI-RS may be configured in a special subframe.

It should be noted that the configuration pattern of the CSI-RS resources shown in FIG. 3-35 is only an exemplary description, and of course, there are other possible configuration patterns of CSI-RS resources, which are not specifically limited in this embodiment of the present invention. In the configuration pattern of the CSI-RS resources shown in FIG. 3-35, 11 OFDM symbols are used as an example for the normal CP type, and 10 OFDM symbols are used as an example for the extended CP type. In the normal CP type, CSI-RS resources can also be configured on 9, 10 or 12 OFDM symbols; in the extended CP type, CSI-RS resources can also be performed on 8 or 9 OFDM symbols. The configuration of the present invention is not specifically limited thereto.

It should be noted that the foregoing method for configuring the CSI is not only applicable to the configuration of the special subframe, but also applicable to the configuration of the downlink subframe, which is not specifically limited in this embodiment of the present invention.

Based on the above communication system, the embodiment of the present invention further provides a method for configuring a CSI, as shown in FIG. 36, including:

S3601: The base station determines a CSI-RS configuration of a downlink transmission subframe, where the CSI-RS configuration includes an identifier of an RE of the CSI-RS.

Each of the m PRB pairs includes m n-port CSI-RS resources, and each of the m n-port CSI-RS resources is aggregated by p q-port CSI-RS resources. When m≥2, there are s q-port CSI-RS resources in at least two n-port CSI-RS resources, and the downlink transmission subframe includes a special subframe or a downlink subframe, 1≤s<p, n>q, m, n, t, p, q, s are all positive integers;

S3602: The base station sends, to the UE, indication information of the CSI-RS configuration, where the CSI-RS The configured indication information is used to indicate a CSI-RS configuration of the downlink transmission subframe.

S3603: The UE receives the indication information of the CSI-RS configuration sent by the base station.

S3604. The UE determines, according to the indication information of the CSI-RS configuration, a CSI-RS configuration of the downlink transmission subframe.

That is, in the embodiment of the present invention, the CSI-RS configuration of the downlink transmission subframe may be performed by using an aggregation manner in which a plurality of q-port CSI-RS resources are partially overlapped.

Taking a 16-port CSI-RS configuration in a PRB pair as an example, the three 8-port CSI-RS resource configurations in one PRB pair shown in Figure 16 can be partially aggregated to form two 16-port CSI-RSs. Resource configuration, such as the first 16-port CSI-RS resource configuration consists of the first 8-port CSI-RS resource configuration plus the second 8-port CSI-RS resource configuration aggregation, and the second 16-port CSI configuration. The -RS resource configuration consists of the second 8-port CSI-RS resource configuration plus the third 8-port CSI-RS resource configuration aggregation. The CSI-RS resource configuration of the second 8-port is repeatedly displayed in the CSI-RS resource configuration of the first 16-port and the CSI-RS resource configuration of the second 16-port. Further, the repeatedly configured 8-port CSI-RS resources may be scrambled with different 16-port CSI-RS resource configurations, so that the reused resources may be used to perform CSI-RS resources of multiple antenna ports multiple times. polymerization.

When the 16-port CSI-RS resource is aggregated by eight 2-port CSI-RS resources, and the number of 2-port CSI-RS resources in one PRB pair is 12, the possible aggregation mode according to this method may be: 1st The 16-port CSI-RS resource configuration is composed of the first eight 2-port CSI-RS resource configuration aggregations, and the second 16-port CSI-RS resource configuration is composed of the last eight 2-port CSI-RS resource configuration aggregations. The 5th, 6th, 7th, and 8th 2-port CSI-RS resources are repeated in the configuration of two 16-port CSI-RS resources.

The embodiment of the present invention provides a related solution for configuring a CSI-RS in a downlink transmission subframe. The method for configuring a CSI-RS according to the embodiment of the present invention may configure a CSI-RS in a special subframe, or may be in an antenna. The CSI-RS is configured in the downlink subframe when the number of the ports is greater than 8, which is not specifically limited in this embodiment of the present invention.

The embodiment of the present invention provides a base station 370. As shown in FIG. 37, the base station 370 includes a processing unit 3701 and a sending unit 3702.

The processing unit 3701 is configured to determine a CSI-RS configuration of a special subframe, where the CSI-RS Configuring an identifier of the RE including the CSI-RS, where each n PRB pairs includes m n-port CSI-RS resources, and each n-port CSI-RS resource of the m n-port CSI-RS resources It is composed of r w port CSI-RS resources, n=r×w, and t, m, n, r, and w are all positive integers.

The sending unit 3702 is configured to send the indication information of the CSI-RS configuration to the UE, where the indication information of the CSI-RS configuration is used to indicate a CSI-RS configuration of the special subframe.

It should be noted that the sending unit 3702 in this embodiment may be an interface circuit having a transmitting function on the base station 370, such as a transmitter; the processing unit 3701 may be a separately set processor, or may be integrated in a certain processing of the base station 370. In addition, it may be stored in the memory of the base station 370 in the form of program code, and the function of the above processing unit 3701 is called and executed by one of the processors of the base station 370. The processor described herein may be a central processing unit (English: Central Processing Unit, CPU for short), or an application specific integrated circuit (ASIC), or configured to implement the present invention. One or more integrated circuits of an embodiment.

For example, the method for performing the CSI-RS configuration and the various configuration patterns of the base station 370 provided by the embodiment of the present invention may be referred to the foregoing method embodiments, and details are not described herein again.

The embodiment of the present invention provides a related solution for configuring a CSI-RS in a special subframe. The base station according to the embodiment of the present invention may configure a CSI-RS in a special subframe.

The embodiment of the present invention provides a UE 380. As shown in FIG. 38, the UE 380 includes a receiving unit 3801 and a processing unit 3802.

The receiving unit 3801 is configured to receive indication information of a CSI-RS configuration sent by the base station, where the indication information of the CSI-RS configuration is used to indicate a CSI-RS configuration of a special subframe, where each physical resource block PRB The pair includes m n-port CSI-RS resources, and each n-port CSI-RS resource of the m n-port CSI-RS resources is aggregated by r w-port CSI-RS resources, n=r×w , t, m, n, r, w are all positive integers.

The processing unit 3802 is configured to determine a CSI-RS configuration of the special subframe according to the indication information of the CSI-RS configuration.

It should be noted that the receiving unit 3801 in this embodiment may be an interface circuit having a receiving function on the UE 380, such as a receiver; the processing unit 3802 may be a separately set processor. It can also be implemented in a certain processor of the base station. In addition, it can also be stored in the memory of the UE 380 in the form of program code, and the function of the above processing unit 3802 can be called and executed by a certain processor of the UE 380. The processor described herein can be a CPU, or an ASIC, or one or more integrated circuits configured to implement embodiments of the present invention.

For example, the method for performing CSI-RS configuration and the various configuration patterns of the UE 380 provided by the embodiment of the present invention may be referred to the foregoing method embodiments, and details are not described herein again.

The embodiment of the present invention provides a related solution for configuring a CSI-RS in a special subframe. The UE provided by the embodiment of the present invention may configure a CSI-RS in a special subframe.

The embodiment of the present invention further provides a base station 370. As shown in FIG. 37, the base station 370 includes: a processing unit 3701 and a sending unit 3702.

The processing unit 3701 is configured to determine a CSI-RS configuration of a downlink transmission subframe, where the CSI-RS configuration includes an identifier of an RE of the CSI-RS, where each n PRB pairs includes m n-port CSIs -RS resources, each n-port CSI-RS resource of the m n-port CSI-RS resources is aggregated by p q-port CSI-RS resources, and when m≥2, there are at least two n-port CSIs The s q-port CSI-RS resources in the RS resource are the same, and the downlink transmission subframe includes a special subframe or a downlink subframe, 1≤S<p, n>q, m, n, t, p, q, s are positive integers.

The sending unit 3702 is configured to send the indication information of the CSI-RS configuration to the UE, where the indication information of the CSI-RS configuration is used to indicate a CSI-RS configuration of the downlink transmission subframe.

For example, the method for performing the CSI-RS configuration by the base station 370 provided by the embodiment of the present invention may be referred to the foregoing method embodiment, and details are not described herein again.

The embodiment of the present invention provides a related solution for configuring a CSI-RS in a downlink transmission subframe. The base station provided by the embodiment of the present invention may configure a CSI-RS in a special subframe, or when the number of antenna ports is greater than 8. The CSI-RS is configured in the downlink subframe, which is not specifically limited in this embodiment of the present invention.

The embodiment of the present invention further provides a UE 380. As shown in FIG. 38, the UE 380 includes: a receiving unit 3801 and a processing unit 3802.

The receiving unit 3801 is configured to receive indication information of a CSI-RS configuration sent by a base station, where the indication information of the CSI-RS configuration is used to indicate a CSI-RS configuration of a downlink transmission subframe, where each t PRB is aligned. Containing m n-port CSI-RS resources, the m n-port CSI-RS Each n-port CSI-RS resource in the resource is aggregated by p q-port CSI-RS resources. When m≥2, there are s q-port CSI-RS resources in at least two n-port CSI-RS resources. Similarly, the downlink transmission subframe includes a special subframe or a downlink subframe, and 1≤s<p, n>q, and m, n, t, p, q, and s are all positive integers.

The processing unit 3802 is configured to determine a CSI-RS configuration of the downlink transmission subframe according to the indication information of the CSI-RS configuration.

For example, the method for performing CSI-RS configuration by the UE 380 provided by the embodiment of the present invention may be referred to the foregoing method embodiment, and details are not described herein again.

The embodiment of the present invention provides a related solution for configuring a CSI-RS in a downlink transmission subframe. The UE provided by the embodiment of the present invention may configure a CSI-RS in a special subframe, or when the number of antenna ports is greater than 8. The CSI-RS is configured in the downlink subframe, which is not specifically limited in this embodiment of the present invention.

The embodiment of the present invention further provides a base station 390. As shown in FIG. 39, the base station 390 includes a processor 3901, a memory 3902, a bus 3903, and a communication interface 3904.

The memory 3902 is configured to store computer execution instructions 39021, the processor 3901 is connected to the memory 3902 via the bus 3903, and when the base station 390 is running, the processor 3901 executes the memory 3902 stored. The computer executes instructions 39021 to cause the base station 390 to perform a method of CSI-RS configuration performed by the base station 390 in the method embodiment described above.

It should be noted that, in the embodiment of the present invention, the processor 3901 may be a single core or multi-core central processing unit, or a specific integrated circuit, or one or more integrated circuits configured to implement the embodiments of the present invention.

The memory 3902 may be a high speed random access memory (English: Random Access Memory, RAM for short) or a non-volatile memory (English: non-volatile memory), such as at least one disk storage.

Memory 3902 is used to store computer execution instructions 39021. Specifically, the program code may be included in the computer execution instruction 39021.

When the base station 390 is in operation, the processor 3901 executes a computer-executed instruction to perform a method of CSI-RS configuration performed by the base station 390 in the above-described method embodiment.

The base station 390 in the embodiment of the present invention can be used to perform the foregoing method. Therefore, the technical effects can be obtained by referring to the description of the foregoing method embodiments, and details are not described herein again.

The embodiment of the present invention further provides a UE 400. As shown in FIG. 40, the UE 400 includes a processor 4001, a memory 4002, a bus 4003, and a communication interface 4004.

The memory 4002 is configured to store a computer execution instruction 40021, the processor 4001 is connected to the memory 4002 via the bus 4003, and when the UE 400 is running, the processor 4001 executes the memory stored in the memory 4002 The computer executes instructions 40021 to cause the UE 400 to perform a method of CSI-RS configuration performed by the UE 400 in the method embodiments described above.

It should be noted that, in the embodiment of the present invention, the processor 4001 may be a single-core or multi-core central processing unit, or a specific integrated circuit, or one or more integrated circuits configured to implement the embodiments of the present invention.

The memory 4002 may be a high-speed random access memory (English: Random Access Memory, RAM for short) or a non-volatile memory (English: non-volatile memory), such as at least one disk storage.

The memory 4002 is configured to store computer execution instructions 40021. Specifically, the program code may be included in the computer execution instruction 40021.

When the UE 400 is executed, the processor 4001 executes a computer execution instruction, and may perform a method of CSI-RS configuration performed by the UE 400 in the above method embodiment.

The UE 400 in the embodiment of the present invention can be used to perform the foregoing method. Therefore, the technical effects that can be obtained can also be referred to the description of the foregoing method embodiment, and details are not described herein again.

It will be clearly understood by those skilled in the art that, for convenience and brevity of description, the above described device is only illustrated by the division of the above functional modules. In practical applications, the above functions may be assigned differently according to needs. The function module is completed, that is, the internal structure of the device is divided into different functional modules to complete all or part of the functions described above. For the specific working process of the system, the device and the unit described above, refer to the corresponding process in the foregoing method embodiment, 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 embodiment described above For example, the division of the module or unit is only a logical function division, and the actual implementation may have another division manner, for example, multiple units or components may be combined or 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 invention 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 invention, which is essential or contributes 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, server, or network device, etc.) or a processor to perform all or part of the steps of the methods described in various embodiments of the present invention. The foregoing storage medium includes: a U disk, a mobile hard disk, a read-only memory (ROM), a random access memory (RAM), a magnetic disk, or an optical disk, and the like. .

The above is only a specific embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art can easily think of changes or substitutions within the technical scope of the present invention. It should be covered by the scope of the present invention. Therefore, the scope of the invention should be determined by the scope of the appended claims.

Claims

A method for configuring a channel state information reference signal CSI-RS, the method comprising:

Determining, by the base station, a CSI-RS configuration of a special subframe, where the CSI-RS configuration includes an identifier of a resource unit RE of the CSI-RS, where each of the physical resource block PRB pairs includes m n-port CSI-RS resources Each n-port CSI-RS resource of the m n-port CSI-RS resources is aggregated by r w-port CSI-RS resources, n=r×w, t, m, n, r, w Is a positive integer;

The base station sends the indication information of the CSI-RS configuration to the user equipment UE, where the indication information of the CSI-RS configuration is used to indicate the CSI-RS configuration of the special subframe.
The method according to claim 1, wherein when r=2, n=2 X , the first n/2 of each n-port CSI-RS resource of the m n-port CSI-RS resources The port constitutes an n/2 port CSI-RS resource, and the n-1th port and the i-th n/2 port CSI of the i-th n-port CSI-RS resource of the m n-port CSI-RS resources - The identifier of the RE of the n/2-1th port of the RS resource is the same, 1 ≤ i ≤ m, and both i and X are positive integers.
The method according to claim 2, wherein if the identifier of the RE of the n-1th port of the n-port CSI-RS resource is denoted as (k, l), k represents a frequency domain index, and l represents Domain index; when n=1, the cyclic prefix CP type is a normal CP, the n-1th port and the ith of the i-th n-port CSI-RS resource in the m n-port CSI-RS resources The resource element RE of the n/2-1th port of the n/2 port CSI-RS resource has the same identifier, including:

When m=20 and n=2, the identifiers of the first 2-port CSI-RS resource to the first port of the 20th 2-port CSI-RS resource are (9, 2), (11, 5, respectively). ), (9,5), (7,5), (9,2), (8,2), (10,5), (8,5), (6,5), (8,2), (3,2), (2,2), (5,5), (4,5), (3,5), (2,5), (1,5), (0,5), (3 2), (2, 2), the RE is located in the radio frame, the number of the slot n s modulo 2 operation is 0, 0, 0, 0, 1, 0, 0, 0, 0, 1, respectively , 0, 0, 0, 0, 0, 0, 0, 0, 1, 1;

When m=10 and n=4, the identifiers of the REs of the first 4-port CSI-RS resource to the third port of the 10th 4-port CSI-RS resource are (9, 2), (11, 5, respectively). ), (9,5), (7,5), (9,2), (8,2), (10,5), (8,5), (6,5), (8,2), value operation mode number n s of the radio frame slot positioned RE 2 are 0,0,0,0,1,0,0,0,0,1;

When m=5, n=8, the identifiers of the REs of the first 8-port CSI-RS resource to the 7th port of the 5th 8-port CSI-RS resource are (9, 2), (11, 5, respectively). ), (9, 5), (7, 5), (9, 2), the RE is located in the radio frame, the number of the slot n s modulo 2 operation is 0, 0, 0, 0, 1, respectively ;

When m=2, n=16, the identifiers of the REs of the first 16-port CSI-RS resource to the 15th port of the second 16-port CSI-RS resource are (9, 2), (11, 5, respectively). The value of the RE located in the radio frame in the number n s modulo 2 operation is 0, 0.
The method according to claim 3, wherein the first 16-port CSI-RS resource and the second 16-port CSI-RS resource are configured by the following configurations A1, B1, C1, D1, E1, and F1. Any one of the configurations is aggregated:

Configuration A1: The first 16-port CSI-RS resource is aggregated from the third 8-port CSI-RS resource and the first 8-port CSI-RS resource, and the second 16-port CSI-RS resource is selected from the fifth 8 Port CSI-RS resources and a second 8-port CSI-RS resource are aggregated;

Configuration B1: The first 16-port CSI-RS resource is aggregated by the third 8-port CSI-RS resource and the first 8-port CSI-RS resource, and the second 16-port CSI-RS resource is composed of the fourth 8 Port CSI-RS resources and a second 8-port CSI-RS resource are aggregated;

Configuration C1: The first 16-port CSI-RS resource is aggregated from the 4th 8-port CSI-RS resource and the first 8-port CSI-RS resource, and the second 16-port CSI-RS resource is 5th. Port CSI-RS resources and a second 8-port CSI-RS resource are aggregated;

Configuration D1: The first 16-port CSI-RS resource is aggregated from the 4th 8-port CSI-RS resource and the first 8-port CSI-RS resource, and the second 16-port CSI-RS resource is 3rd. Port CSI-RS resources and a second 8-port CSI-RS resource are aggregated;

Configure E1: The first 16-port CSI-RS resource is aggregated by the fifth 8-port CSI-RS resource and the first 8-port CSI-RS resource, and the second 16-port CSI-RS resource is composed of the third 8 Port CSI-RS resources and a second 8-port CSI-RS resource are aggregated;

Configure F1: The first 16-port CSI-RS resource consists of the 5th 8-port CSI-RS resource and The first 8-port CSI-RS resource is aggregated, and the second 16-port CSI-RS resource is aggregated by the fourth 8-port CSI-RS resource and the second 8-port CSI-RS resource.
The method according to claim 3, wherein each of the m n-port CSI-RS resources is CSI-RS when m=3, n=12, r=3, w=4 The resource is aggregated by r w port CSI-RS resources, including:

Each of the three 12-port CSI-RS resources is aggregated by three 4-port CSI-RS resources, wherein any two of the three 4-port CSI-RS resources are used. 4-port CSI-RS resources are aggregated into one 8-port CSI-RS resource; or,

Each of the three 12-port CSI-RS resources is aggregated by three 4-port CSI-RS resources, wherein any two of the three 12-port CSI-RS resources are used. The 12-port CSI-RS resources are respectively obtained by subtracting one 4-port CSI-RS resource from any one of the two 16-port CSI-RS resources, and the three 12-port CSI- One 12-port CSI-RS resource other than the any two 12-port CSI-RS resources in the RS resource is aggregated by three 4-port CSI-RS resources other than the any two 12-port CSI-RS resources. Made.
The method according to claim 2, wherein if the identifier of the RE of the n-1th port of the n-port CSI-RS resource is denoted as (k, l), k represents a frequency domain index, and l represents Domain index; when n=1, the CP type is a normal CP, the n-1th port of the i-th n-port CSI-RS resource in the m n-port CSI-RS resources and the i-th n/ The resource unit RE of the n/2-1th port of the 2-port CSI-RS resource has the same identifier, including:

When m=12 and n=2, the identifiers of the first 2-port CSI-RS resource to the first port of the 12th 2-port CSI-RS resource are (11, 5), (9, 5, respectively). ), (7,5), (10,5), (8,5), (6,5), (5,5), (4,5), (3,5), (2,5), (1, 5), (0, 5), the RE is located in the radio frame, the number of the slot n s modulo 2 operation is 0, 0, 0, 0, 0, 0, 0, 0, 0 , 0, 0, 0;

When m=6 and n=4, the identifiers of the REs of the first 4-port CSI-RS resource to the third port of the sixth 4-port CSI-RS resource are (11, 5), (9, 5, respectively). ), (7, 5), (10, 5), (8, 5), (6, 5), the RE is located in the radio frame, the number of the slot n s modulo 2 operation is 0, 0 , 0, 0, 0, 0;

When m=3, n=8, the identifiers of the REs of the first 8-port CSI-RS resource to the 7th port of the 5th 8-port CSI-RS resource are (11, 5), (9, 5, respectively). (7, 5), the RE is located in the radio frame, the number of the slot n s modulo 2 operation is 0, 0, 0;

When m=1, n=16, the identifier of the RE of the first 16-port CSI-RS resource is (9, 2), and the RE is located in the radio frame, the number of the slot is n s , and the value after the modulo 2 operation is respectively Is 0.
The method according to claim 6, wherein the first 16-port CSI-RS resource is aggregated by any one of the following configurations J1 and K1:

Configuration J1: The first 16-port CSI-RS resource is aggregated by the second 8-port CSI-RS resource and the first 8-port CSI-RS resource;

Configuration K1: The first 16-port CSI-RS resource is aggregated by the third 8-port CSI-RS resource and the first 8-port CSI-RS resource.
The method according to claim 6, wherein each of the m n-port CSI-RS resources is CSI-RS when m=2, n=12, r=3, w=4 The resource is aggregated by r w port CSI-RS resources, including:

Each of the two 12-port CSI-RS resources is aggregated by three 4-port CSI-RS resources, wherein any two of the three 4-port CSI-RS resources are used. 4-port CSI-RS resources are aggregated into one 8-port CSI-RS resource; or,

Each of the two 12-port CSI-RS resources is aggregated by three 4-port CSI-RS resources, wherein any one of the two 12-port CSI-RS resources is used. The 12-port CSI-RS resource is obtained by subtracting one 4-port CSI-RS resource from the one 16-port CSI-RS resource, and any one of the two 12-port CSI-RS resources except the any one of the 12-port CSI-RS resources One 12-port CSI-RS resource other than the RS resource is aggregated by three 4-port CSI-RS resources other than the arbitrary one-port 12-port CSI-RS resource.
The method according to claim 2, wherein if the identifier of the RE of the n-1th port of the n-port CSI-RS resource is denoted as (k, l), k represents a frequency domain index, and l represents The n-1th port and the ith n/ of the i-th n-port CSI-RS resource of the m n-port CSI-RS resources when t=1 and the CP type is the extended CP. The resource unit RE of the n/2-1th port of the 2-port CSI-RS resource has the same identifier, including:

When m=16 and n=2, the identifiers of the first 2-port CSI-RS resource to the first port of the 16th 2-port CSI-RS resource are (11, 4), (9, 4, respectively). ), (10,4), (9,4), (5,4), (3,4), (4,4), (3,4), (8,4), (6,4), (2,4), (0,4), (7,4), (6,4), (1,4), (0,4), the RE is located in the slot number of the radio frame n s mode 2 The values after the operation are 0, 0, 1, 1, 0, 0, 1, 1, 0, 0, 0, 0, 1, 1, 1, 1;

When m=8 and n=4, the identifiers of the REs of the first 4-port CSI-RS resource to the third port of the eighth 4-port CSI-RS resource are (11, 4), (9, 4, respectively). ), (10,4), (9,4), (5,4), (3,4), (4,4), (3,4), the RE is located in the slot number n of the radio frame The values after s modulo 2 operation are 0, 0, 1, 1, 0, 0, 1, 1 respectively;

When m=4, n=8, the identifiers of the REs of the first 8-port CSI-RS resource to the 7th port of the 4th 8-port CSI-RS resource are (11, 4), (9, 4, respectively). , (10, 4), (9, 4), the RE is located in the radio frame, the number of the slot n s modulo 2 operation is 0, 0, 1, 1, respectively;

When m=2, n=16, the identifiers of the REs of the first 16-port CSI-RS resource to the 15th port of the second 16-port CSI-RS resource are (11, 4), (9, 4, respectively). The value of the RE located in the radio frame in the number n s modulo 2 operation is 0, 0.
The method according to claim 9, wherein the first 16-port CSI-RS resource and the second 16-port CSI-RS resource are aggregated by any one of the following configurations A2 and B2. to make:

Configuration A2: The first 16-port CSI-RS resource is aggregated by the third 8-port CSI-RS resource and the first 8-port CSI-RS resource, and the second 16-port CSI-RS resource is composed of the fourth 8 Port CSI-RS resources and a second 8-port CSI-RS resource are aggregated;

Configuration B2: The first 16-port CSI-RS resource is aggregated from the 4th 8-port CSI-RS resource and the first 8-port CSI-RS resource, and the second 16-port CSI-RS resource is 3rd. The port CSI-RS resource is aggregated with the second 8-port CSI-RS resource.
The method according to claim 9, wherein each of the m n-port CSI-RS resources is CSI-RS when m=2, n=12, r=3, w=4 The resource is aggregated by r w port CSI-RS resources, including:

Each of the two 12-port CSI-RS resources is composed of three 4 CSI-RS resources. The port CSI-RS resource is aggregated, and any two 4-port CSI-RS resources of the three 4-port CSI-RS resources are aggregated into one 8-port CSI-RS resource; or

Each of the two 12-port CSI-RS resources is aggregated by three 4-port CSI-RS resources, wherein the two 12-port CSI-RS resources are respectively A 16-port CSI-RS resource is subtracted from a 4-port CSI-RS resource.
The method according to claim 2, wherein if the identifier of the RE of the n-1th port of the n-port CSI-RS resource is denoted as (k, l), k represents a frequency domain index, and l represents The n-1th port and the ith n/ of the i-th n-port CSI-RS resource of the m n-port CSI-RS resources when t=1 and the CP type is the extended CP. The resource unit RE of the n/2-1th port of the 2-port CSI-RS resource has the same identifier, including:

When m=12 and n=2, the REs of the first 2-port CSI-RS resource to the first port of the 12th 2-port CSI-RS resource are (11, 1), (10, 1), respectively. (9,1), (5,1), (4,1), (3,1), (8,1), (7,1), (6,1), (2,1), (1 , 1), (0, 1), the RE is located in the radio frame, the number of the slot n s modulo 2 operation, the values are 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, respectively 1,1;

When m=6 and n=4, the REs of the first 4-port CSI-RS resource to the third port of the sixth 4-port CSI-RS resource are (11, 1), (10, 1), respectively. (9,1), (5,1), (4,1), (3,1), the RE is located in the radio frame, the number of the slot n s modulo 2 operation, the values are 1, 1, 1, respectively 1, 1, 1, 1;

When m=3, n=8, the REs of the first 8-port CSI-RS resource to the 7th port of the 5th 8-port CSI-RS resource are (11, 1), (10, 1), respectively. (9, 1), the RE is located in the radio frame, the number of the slot n s modulo 2 operation after the value is 1, 1, 1;

When m=1, n=16, the RE of the first 16-port CSI-RS resource is (11, 1), and the RE is located in the radio frame, the number of the slot is n s , and the value after the modulo 2 operation is 1 respectively. .
The method according to claim 12, wherein the first 16-port CSI-RS resource is aggregated by any one of the following configurations E2 and F2:

Configure E2: the first 16-port CSI-RS resource is aggregated by the second 8-port CSI-RS resource and the first 8-port CSI-RS resource;

Configure F2: The first 16-port CSI-RS resource consists of the 3rd 8-port CSI-RS resource and The first 8-port CSI-RS resource is aggregated.
The method according to claim 12, wherein each of the m n-port CSI-RS resources is CSI-RS when m=2, n=12, r=3, w=4 The resource is aggregated by r w port CSI-RS resources, including:

Each of the two 12-port CSI-RS resources is aggregated by three 4-port CSI-RS resources, wherein any two of the three 4-port CSI-RS resources are used. 4-port CSI-RS resources are aggregated into one 8-port CSI-RS resource; or,

Each of the two 12-port CSI-RS resources is aggregated by three 4-port CSI-RS resources, wherein any one of the two 12-port CSI-RS resources is used. The 12-port CSI-RS resource is obtained by subtracting one 4-port CSI-RS resource from the one 16-port CSI-RS resource, and any one of the two 12-port CSI-RS resources except the any one of the 12-port CSI-RS resources One 12-port CSI-RS resource other than the RS resource is aggregated by three 4-port CSI-RS resources other than the arbitrary one-port 12-port CSI-RS resource.
The method according to claim 2, wherein, when t=2, n=16, the first n/2 ports of each n-port CSI-RS resource of the m n-port CSI-RS resources Forming an n/2 port CSI-RS resource, the n-1th port and the ith n/2 port CSI of the i th n port CSI-RS resource of the m n port CSI-RS resources The resource unit RE of the n/2-1th port of the RS resource has the same identifier, including:

The i-th 16-port CSI-RS resource is aggregated by an i-th 8-port CSI-RS resource in a first PRB pair and an i-th 8-port CSI-RS resource in a second PRB pair;

Or the ith 16-port CSI-RS resource is the ith and i+P 4-port CSI-RS resources in the first PRB pair, and the ith and the second in the second PRB pair. i+P 4-port CSI-RS resources are aggregated, and P is the number of 8-port CSI-RS resources in each PRB pair;

Or the i-th 16-port CSI-RS resource is the i-th, i-th, i+th, and i-th+P+Q 4-port CSI-RS resources in the first PRB pair, And the i-th, i+Pth, i+th, and i+P+Q 4-port CSI-RS resources of the second PRB pair are aggregated, and P is 8 ports of each PRB pair. The number of CSI-RS resources, and Q is the number of 4-port CSI-RS resources in each PRB pair.
A method for configuring a channel state information reference signal CSI-RS, characterized in that The method includes:

The user equipment UE receives the indication information of the CSI-RS configuration sent by the base station, where the indication information of the CSI-RS configuration is used to indicate the CSI-RS configuration of the special subframe, where the number of the PRB pairs per t physical resource block includes m An n-port CSI-RS resource, where each n-port CSI-RS resource of the m n-port CSI-RS resources is aggregated by r w-port CSI-RS resources, n=r×w, t, m, n, r, w are positive integers;

The UE determines a CSI-RS configuration of the special subframe according to the indication information of the CSI-RS configuration.
The method according to claim 16, wherein when n=2, n=2 X , the first n/2 of each n-port CSI-RS resource of the m n-port CSI-RS resources The port constitutes an n/2 port CSI-RS resource, and the n-1th port and the i-th n/2 port CSI of the i-th n-port CSI-RS resource of the m n-port CSI-RS resources - The identifier of the RE of the n/2-1th port of the RS resource is the same, 1 ≤ i ≤ m, and both i and X are positive integers.
The method according to claim 17, wherein if the identifier of the RE of the n-1th port of the n-port CSI-RS resource is denoted as (k, l), k represents a frequency domain index, and l represents Domain index; when n=1, the cyclic prefix CP type is a normal CP, the n-1th port and the ith of the i-th n-port CSI-RS resource in the m n-port CSI-RS resources The resource element RE of the n/2-1th port of the n/2 port CSI-RS resource has the same identifier, including:

When m=20 and n=2, the identifiers of the first 2-port CSI-RS resource to the first port of the 20th 2-port CSI-RS resource are (9, 2), (11, 5, respectively). ), (9,5), (7,5), (9,2), (8,2), (10,5), (8,5), (6,5), (8,2), (3,2), (2,2), (5,5), (4,5), (3,5), (2,5), (1,5), (0,5), (3 2), (2, 2), the RE is located in the radio frame, the number of the slot n s modulo 2 operation is 0, 0, 0, 0, 1, 0, 0, 0, 0, 1, respectively , 0, 0, 0, 0, 0, 0, 0, 0, 1, 1;

When m=10 and n=4, the identifiers of the REs of the first 4-port CSI-RS resource to the third port of the 10th 4-port CSI-RS resource are (9, 2), (11, 5, respectively). ), (9,5), (7,5), (9,2), (8,2), (10,5), (8,5), (6,5), (8,2), value operation mode number n s of the radio frame slot positioned RE 2 are 0,0,0, 0,1,0,0,0,0,1;

When m=5, n=8, the identifiers of the REs of the first 8-port CSI-RS resource to the 7th port of the 5th 8-port CSI-RS resource are (9, 2), (11, 5, respectively). ), (9, 5), (7, 5), (9, 2), the RE is located in the radio frame, the number of the slot n s modulo 2 operation is 0, 0, 0, 0, 1, respectively ;

When m=2, n=16, the identifiers of the REs of the first 16-port CSI-RS resource to the 15th port of the second 16-port CSI-RS resource are (9, 2), (11, 5, respectively). The value of the RE located in the radio frame in the number n s modulo 2 operation is 0, 0.
The method according to claim 18, wherein the first 16-port CSI-RS resource and the second 16-port CSI-RS resource are configured by the following configurations A1, B1, C1, D1, E1, and F1. Any one of the configurations is aggregated:

Configuration A1: The first 16-port CSI-RS resource is aggregated from the third 8-port CSI-RS resource and the first 8-port CSI-RS resource, and the second 16-port CSI-RS resource is selected from the fifth 8 Port CSI-RS resources and a second 8-port CSI-RS resource are aggregated;

Configuration B1: The first 16-port CSI-RS resource is aggregated by the third 8-port CSI-RS resource and the first 8-port CSI-RS resource, and the second 16-port CSI-RS resource is composed of the fourth 8 Port CSI-RS resources and a second 8-port CSI-RS resource are aggregated;

Configuration C1: The first 16-port CSI-RS resource is aggregated from the 4th 8-port CSI-RS resource and the first 8-port CSI-RS resource, and the second 16-port CSI-RS resource is 5th. Port CSI-RS resources and a second 8-port CSI-RS resource are aggregated;

Configuration D1: The first 16-port CSI-RS resource is aggregated from the 4th 8-port CSI-RS resource and the first 8-port CSI-RS resource, and the second 16-port CSI-RS resource is 3rd. Port CSI-RS resources and a second 8-port CSI-RS resource are aggregated;

Configure E1: The first 16-port CSI-RS resource is aggregated by the fifth 8-port CSI-RS resource and the first 8-port CSI-RS resource, and the second 16-port CSI-RS resource is composed of the third 8 Port CSI-RS resources and a second 8-port CSI-RS resource are aggregated;

Configuration F1: The first 16-port CSI-RS resource is aggregated from the 5th 8-port CSI-RS resource and the first 8-port CSI-RS resource, and the second 16-port CSI-RS resource is 4th. The port CSI-RS resource is aggregated with the second 8-port CSI-RS resource.
The method according to claim 18, wherein each of the m n-port CSI-RS resources is CSI-RS when m=3, n=12, r=3, w=4 The resource is aggregated by r w port CSI-RS resources, including:

Each of the three 12-port CSI-RS resources is aggregated by three 4-port CSI-RS resources, wherein any two of the three 4-port CSI-RS resources are used. 4-port CSI-RS resources are aggregated into one 8-port CSI-RS resource; or,

Each of the three 12-port CSI-RS resources is aggregated by three 4-port CSI-RS resources, wherein any two of the three 12-port CSI-RS resources are used. The 12-port CSI-RS resources are respectively obtained by subtracting one 4-port CSI-RS resource from any one of the two 16-port CSI-RS resources, and the three 12-port CSI- One 12-port CSI-RS resource other than the any two 12-port CSI-RS resources in the RS resource is aggregated by three 4-port CSI-RS resources other than the any two 12-port CSI-RS resources. Made.
The method according to claim 17, wherein if the identifier of the RE of the n-1th port of the n-port CSI-RS resource is denoted as (k, l), k represents a frequency domain index, and l represents Domain index; when n=1, the CP type is a normal CP, the n-1th port of the i-th n-port CSI-RS resource in the m n-port CSI-RS resources and the i-th n/ The resource unit RE of the n/2-1th port of the 2-port CSI-RS resource has the same identifier, including:

When m=12 and n=2, the identifiers of the first 2-port CSI-RS resource to the first port of the 12th 2-port CSI-RS resource are (11, 5), (9, 5, respectively). ), (7,5), (10,5), (8,5), (6,5), (5,5), (4,5), (3,5), (2,5), (1, 5), (0, 5), the RE is located in the radio frame, the number of the slot n s modulo 2 operation is 0, 0, 0, 0, 0, 0, 0, 0, 0 , 0, 0, 0;

When m=6 and n=4, the identifiers of the REs of the first 4-port CSI-RS resource to the third port of the sixth 4-port CSI-RS resource are (11, 5), (9, 5, respectively). ), (7, 5), (10, 5), (8, 5), (6, 5), the RE is located in the radio frame, the number of the slot n s modulo 2 operation is 0, 0 , 0, 0, 0, 0;

When m=3, n=8, the identifiers of the REs of the first 8-port CSI-RS resource to the 7th port of the 5th 8-port CSI-RS resource are (11, 5), (9, 5, respectively). , (7, 5), the RE is located in the radio frame, the number of the slot n s modulo 2 operation is 0, 0, 0;

When m=1, n=16, the identifier of the RE of the first 16-port CSI-RS resource is (9, 2), and the RE is located in the radio frame, the number of the slot is n s , and the value after the modulo 2 operation is respectively Is 0.
The method according to claim 21, wherein the first 16-port CSI-RS resource is aggregated by any one of the following configurations J1 and K1:

Configuration J1: The first 16-port CSI-RS resource is aggregated by the second 8-port CSI-RS resource and the first 8-port CSI-RS resource;

Configuration K1: The first 16-port CSI-RS resource is aggregated by the third 8-port CSI-RS resource and the first 8-port CSI-RS resource.
The method according to claim 21, wherein each of the m n-port CSI-RS resources is CSI-RS when m=2, n=12, r=3, w=4 The resource is aggregated by r w port CSI-RS resources, including:

Each of the two 12-port CSI-RS resources is aggregated by three 4-port CSI-RS resources, wherein any two of the three 4-port CSI-RS resources are used. 4-port CSI-RS resources are aggregated into one 8-port CSI-RS resource; or,

Each of the two 12-port CSI-RS resources is aggregated by three 4-port CSI-RS resources, wherein any one of the two 12-port CSI-RS resources is used. The 12-port CSI-RS resource is obtained by subtracting one 4-port CSI-RS resource from the one 16-port CSI-RS resource, and any one of the two 12-port CSI-RS resources except the any one of the 12-port CSI-RS resources One 12-port CSI-RS resource other than the RS resource is aggregated by three 4-port CSI-RS resources other than the arbitrary one-port 12-port CSI-RS resource.
The method according to claim 17, wherein if the identifier of the RE of the n-1th port of the n-port CSI-RS resource is denoted as (k, l), k represents a frequency domain index, and l represents The n-1th port and the ith n/ of the i-th n-port CSI-RS resource of the m n-port CSI-RS resources when t=1 and the CP type is the extended CP. The resource unit RE of the n/2-1th port of the 2-port CSI-RS resource has the same identifier, including:

When m=16 and n=2, the identifiers of the first 2-port CSI-RS resource to the first port of the 16th 2-port CSI-RS resource are (11, 4), (9, 4, respectively). ), (10,4), (9,4), (5,4), (3,4), (4,4), (3,4), (8,4), (6, 4), (2,4), (0,4), (7,4), (6,4), (1,4), (0,4), the RE is located in the slot number of the radio frame n s mode 2 The values after the operation are 0, 0, 1, 1, 0, 0, 1, 1, 0, 0, 0, 0, 1, 1, 1, 1;

When m=8 and n=4, the identifiers of the REs of the first 4-port CSI-RS resource to the third port of the eighth 4-port CSI-RS resource are (11, 4), (9, 4, respectively). ), (10,4), (9,4), (5,4), (3,4), (4,4), (3,4), the RE is located in the slot number n of the radio frame The values after s modulo 2 operation are 0, 0, 1, 1, 0, 0, 1, 1 respectively;

When m=4, n=8, the identifiers of the REs of the first 8-port CSI-RS resource to the 7th port of the 4th 8-port CSI-RS resource are (11, 4), (9, 4, respectively). , (10, 4), (9, 4), the RE is located in the radio frame, the number of the slot n s modulo 2 operation is 0, 0, 1, 1, respectively;

When m=2, n=16, the identifiers of the REs of the first 16-port CSI-RS resource to the 15th port of the second 16-port CSI-RS resource are (11, 4), (9, 4, respectively). The value of the RE located in the radio frame in the number n s modulo 2 operation is 0, 0.
The method according to claim 24, wherein the first 16-port CSI-RS resource and the second 16-port CSI-RS resource are aggregated by any one of the following configurations A2 and B2. to make:

Configuration A2: The first 16-port CSI-RS resource is aggregated by the third 8-port CSI-RS resource and the first 8-port CSI-RS resource, and the second 16-port CSI-RS resource is composed of the fourth 8 Port CSI-RS resources and a second 8-port CSI-RS resource are aggregated;

Configuration B2: The first 16-port CSI-RS resource is aggregated from the fourth 8-port CSI-RS resource and the first 8-port CSI-RS resource, and the second 16-port CSI-RS resource is formed by the third 8-port. The CSI-RS resource is aggregated with the second 8-port CSI-RS resource.
The method according to claim 24, wherein each of the m n-port CSI-RS resources is CSI-RS when m=2, n=12, r=3, w=4 The resource is aggregated by r w port CSI-RS resources, including:

Each of the two 12-port CSI-RS resources is aggregated by three 4-port CSI-RS resources, wherein any two of the three 4-port CSI-RS resources are used. 4-port CSI-RS resources are aggregated into one 8-port CSI-RS resource; or,

Each of the two 12-port CSI-RS resources is aggregated by three 4-port CSI-RS resources, wherein the two 12-port CSI-RS resources are respectively A 16-port CSI-RS resource is subtracted from a 4-port CSI-RS resource.
The method according to claim 17, wherein if the identifier of the RE of the n-1th port of the n-port CSI-RS resource is denoted as (k, l), k represents a frequency domain index, and l represents The n-1th port and the ith n/ of the i-th n-port CSI-RS resource of the m n-port CSI-RS resources when t=1 and the CP type is the extended CP. The resource unit RE of the n/2-1th port of the 2-port CSI-RS resource has the same identifier, including:

When m=12 and n=2, the REs of the first 2-port CSI-RS resource to the first port of the 12th 2-port CSI-RS resource are (11, 1), (10, 1), respectively. (9,1), (5,1), (4,1), (3,1), (8,1), (7,1), (6,1), (2,1), (1 , 1), (0, 1), the RE is located in the radio frame, the number of the slot n s modulo 2 operation, the values are 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, respectively 1,1;

When m=6 and n=4, the REs of the first 4-port CSI-RS resource to the third port of the sixth 4-port CSI-RS resource are (11, 1), (10, 1), respectively. (9,1), (5,1), (4,1), (3,1), the RE is located in the radio frame, the number of the slot n s modulo 2 operation, the values are 1, 1, 1, respectively 1, 1, 1, 1;

When m=3, n=8, the REs of the first 8-port CSI-RS resource to the 7th port of the 5th 8-port CSI-RS resource are (11, 1), (10, 1), respectively. (9, 1), the RE is located in the radio frame, the number of the slot n s modulo 2 operation after the value is 1, 1, 1;

When m=1, n=16, the RE of the first 16-port CSI-RS resource is (11, 1), and the RE is located in the radio frame, the number of the slot is n s , and the value after the modulo 2 operation is 1 respectively. .
The method according to claim 27, wherein the first 16-port CSI-RS resource is aggregated by any one of the following configurations E2 and F2:

Configure E2: the first 16-port CSI-RS resource is aggregated by the second 8-port CSI-RS resource and the first 8-port CSI-RS resource;

Configuration F2: The first 16-port CSI-RS resource is aggregated by the third 8-port CSI-RS resource and the first 8-port CSI-RS resource.
The method according to claim 27, wherein when m = 2, n = 12, r=3, w=4, each of the n n-port CSI-RS resources is aggregated by r w-port CSI-RS resources, including:

Each of the two 12-port CSI-RS resources is aggregated by three 4-port CSI-RS resources, wherein any two of the three 4-port CSI-RS resources are used. 4-port CSI-RS resources are aggregated into one 8-port CSI-RS resource; or,

Each of the two 12-port CSI-RS resources is aggregated by three 4-port CSI-RS resources, wherein any one of the two 12-port CSI-RS resources is used. The 12-port CSI-RS resource is obtained by subtracting one 4-port CSI-RS resource from the one 16-port CSI-RS resource, and any one of the two 12-port CSI-RS resources except the any one of the 12-port CSI-RS resources One 12-port CSI-RS resource other than the RS resource is aggregated by three 4-port CSI-RS resources other than the arbitrary one-port 12-port CSI-RS resource.
The method according to claim 17, wherein when t=2, n=16, the first n/2 ports of each of the n n-port CSI-RS resources are n-port CSI-RS resources Forming an n/2 port CSI-RS resource, the n-1th port and the ith n/2 port CSI of the i th n port CSI-RS resource of the m n port CSI-RS resources The resource unit RE of the n/2-1th port of the RS resource has the same identifier, including:

The i-th 16-port CSI-RS resource is aggregated by an i-th 8-port CSI-RS resource in a first PRB pair and an i-th 8-port CSI-RS resource in a second PRB pair;

Or the ith 16-port CSI-RS resource is the ith and i+P 4-port CSI-RS resources in the first PRB pair, and the ith and the second in the second PRB pair. i+P 4-port CSI-RS resources are aggregated, and P is the number of 8-port CSI-RS resources in each PRB pair;

Or the i-th 16-port CSI-RS resource is the i-th, i-th, i+th, and i-th+P+Q 4-port CSI-RS resources in the first PRB pair, And the i-th, i+Pth, i+th, and i+P+Q 4-port CSI-RS resources of the second PRB pair are aggregated, and P is 8 ports of each PRB pair. The number of CSI-RS resources, and Q is the number of 4-port CSI-RS resources in each PRB pair.
A method for configuring a channel state information reference signal CSI-RS, the method comprising:

Determining, by the base station, a CSI-RS configuration of a downlink transmission subframe, where the CSI-RS configuration includes the An identifier of a resource unit RE of a CSI-RS, where each t physical resource block PRB pair includes m n-port CSI-RS resources, and each n-port CSI-RS of the m n-port CSI-RS resources The resource is aggregated by the p q-port CSI-RS resources. When m≥2, there are s q-port CSI-RS resources in at least two n-port CSI-RS resources, and the downlink transmission subframe includes a special Subframe or downlink subframe, 1≤s<p, n>q, m, n, t, p, q, s are positive integers;

The base station sends the indication information of the CSI-RS configuration to the user equipment UE, where the indication information of the CSI-RS configuration is used to indicate the CSI-RS configuration of the downlink transmission subframe.
A method for configuring a channel state information reference signal CSI-RS, the method comprising:

The user equipment UE receives the indication information of the CSI-RS configuration sent by the base station, where the indication information of the CSI-RS configuration is used to indicate the CSI-RS configuration of the downlink transmission subframe, where the per-physical resource block PRB pair includes m Each n-port CSI-RS resource of the n-port CSI-RS resources is aggregated by p q-port CSI-RS resources, and when m≥2, there are at least two The s q-port CSI-RS resources in the n-port CSI-RS resources are the same, and the downlink transmission subframe includes a special subframe or a downlink subframe, 1≤s<p, n>q, m, n, t, p, q, s are all positive integers;

The UE determines a CSI-RS configuration of the downlink transmission subframe according to the indication information of the CSI-RS configuration.
A base station, characterized in that the base station comprises a processing unit and a transmitting unit;

The processing unit is configured to determine a channel state information reference signal CSI-RS configuration of a special subframe, where the CSI-RS configuration includes an identifier of a resource unit RE of the CSI-RS, where each physical resource block PRB The pair includes m n-port CSI-RS resources, and each n-port CSI-RS resource of the m n-port CSI-RS resources is aggregated by r w-port CSI-RS resources, n=r×w , t, m, n, r, w are all positive integers;

The sending unit is configured to send the indication information of the CSI-RS configuration to the user equipment UE, where the indication information of the CSI-RS configuration is used to indicate a CSI-RS configuration of the special subframe.
A user equipment UE, characterized in that the UE comprises a receiving unit and a processing unit;

The receiving unit is configured to receive indication information of a CSI-RS configuration sent by the base station, where The CSI-RS configuration indication information is used to indicate a CSI-RS configuration of a special subframe, where each t physical resource block PRB pair includes m n-port CSI-RS resources, and the m n-port CSI-RS resources Each n-port CSI-RS resource is aggregated by r w-port CSI-RS resources, n=r×w, and t, m, n, r, and w are positive integers;

The processing unit is configured to determine a CSI-RS configuration of the special subframe according to the indication information of the CSI-RS configuration.
A base station, the base station includes: a processing unit and a sending unit;

The processing unit is configured to determine a channel state information reference signal CSI-RS configuration of a downlink transmission subframe, where the CSI-RS configuration includes an identifier of a resource unit RE of the CSI-RS, where each t physical resource block The PRB pair includes m n-port CSI-RS resources, and each n-port CSI-RS resource of the m n-port CSI-RS resources is aggregated by p q-port CSI-RS resources, when m≥2 The s q-port CSI-RS resources in the at least two n-port CSI-RS resources are the same, and the downlink transmission subframe includes a special subframe or a downlink subframe, where 1≤s<p,n>q,m , n, t, p, q, s are all positive integers;

The sending unit is configured to send, to the user equipment UE, the indication information of the CSI-RS configuration, where the indication information of the CSI-RS configuration is used to indicate a CSI-RS configuration of the downlink transmission subframe.
A user equipment (UE), the UE includes: a receiving unit and a processing unit;

The receiving unit is configured to receive indication information of a channel state information reference signal CSI-RS configuration sent by the base station, where the indication information of the CSI-RS configuration is used to indicate a CSI-RS configuration of the downlink transmission subframe, where each t The physical resource block PRB pair includes m n-port CSI-RS resources, and each n-port CSI-RS resource of the m n-port CSI-RS resources is aggregated by p q-port CSI-RS resources. When m≥2, there are s q-port CSI-RS resources in at least two n-port CSI-RS resources, and the downlink transmission subframe includes a special subframe or a downlink subframe, 1≤s<p,n >q, m, n, t, p, q, s are all positive integers;

The processing unit is configured to determine a CSI-RS configuration of the downlink transmission subframe according to the indication information of the CSI-RS configuration.
A base station, the base station comprising a processor, a memory, a bus, and Communication Interface;

The memory is configured to store a computer to execute an instruction, the processor is connected to the memory through the bus, and when the base station is running, the processor executes the computer-executed instruction stored in the memory to make A method in which a base station performs the CSI-RS configuration according to any one of claims 1 to 15 or a method of performing the CSI-RS configuration according to claim 31.
A user equipment UE, characterized in that the UE comprises a processor, a memory, a bus and a communication interface;

The memory is configured to store a computer to execute an instruction, the processor is connected to the memory through the bus, and when the UE is running, the processor executes the computer-executed instruction stored in the memory to make A method of the UE performing the CSI-RS configuration according to any one of claims 16-30 or a method of performing the CSI-RS configuration according to claim 32.