WO2017167158A1

WO2017167158A1 - Method and device for transmitting pilot configuration information, and system

Info

Publication number: WO2017167158A1
Application number: PCT/CN2017/078323
Authority: WO
Inventors: 李永; 陈艺戬; 李儒岳; 鲁照华; 吴昊; 肖华华; 王瑜新; 蔡剑兴
Original assignee: 中兴通讯股份有限公司
Priority date: 2016-04-01
Filing date: 2017-03-27
Publication date: 2017-10-05
Also published as: CN107294689A

Abstract

The present invention provides a method and device for transmitting pilot configuration information, and a system. The method comprises: a base station sends signaling comprising configuration information for transmitting a channel state information-reference signal (CSI-RS) resource, the configuration information comprising: the number of ports, the number of CSI-RS configurations, the number of CSI-RS configuration ports, and the serial numbers of the CSI-RS configurations. The present invention resolves the problem in the related art of reduced data transmission efficiency of a system due to large overhead for CSI-RS transmission on the system bandwidth; the overhead for CSI-RS transmission is reduced, such that the data transmission efficiency of the system is improved.

Description

Method, device and system for transmitting pilot configuration information

Technical field

The present invention relates to the field of communications, and in particular to a method, device, and system for transmitting pilot configuration information.

Background technique

Long Term Evolution (LTE)/LTE-Advanced (LTE-A) technology is the mainstream fourth-generation mobile communication technology (4G). LTE/LTE-A is divided into two different duplex modes: Frequency Division Duplex (FDD) and Time Division Duplex (TDD). The frame structure of the frequency division duplex mode is called a frame structure type 1 (Frame structure type 1), and the frame structure of the time division duplex mode is called a frame structure type 2 (Frame structure type 2).

1 is a schematic diagram of a first type of frame structure according to the related art. As shown in FIG. 1, a description of a first type of frame structure is as follows: each radio frame has a length of T _f =307200·T ^s =10 ms. (milliseconds), consisting of 20 slots, the length of which is T _slot =15360·T _s =0.5ms (milliseconds), numbered from 0 to 19, where Ts is the time unit and T _s =1 / (15000 × 2048) seconds; a subframe is defined as consisting of two consecutive time slots, that is, subframe i consists of time slots 2i and 2i+1; for FDD duplex mode, at 10 millisecond intervals 10 subframes are used for downlink transmission, 10 subframes are used for uplink transmission, and uplink transmission and downlink transmission are performed on different frequencies respectively. In half-duplex FDD mode, the terminal (UE, User Equipment) It cannot be transmitted and received at the same time, but in the full-duplex FDD mode, there is no such limitation.

2 is a schematic diagram of a second type of frame structure according to the related art. As shown in FIG. 2, the description of the second type of frame structure is as follows: each radio frame has a length of T _f =307200·T _s =10 ms. , consisting of two half-frames, the length of the field is 153600·T _s =5ms, each field consists of 5 subframes, each subframe length is 30720·T _s =1ms, each The sub-frames are defined as two slots, that is, the sub-frame i is composed of the slots 2i and 2i+1, and the slot length is T _slot = 15360 · T _s = 0.5 ms, where Ts is the time unit, T _s =1/(15000×2048) seconds.

The uplink-downlink configuration change of a cell occurs between frames, and the uplink and downlink transmission occurs on a subframe of a frame. The uplink and downlink configuration of the current frame is obtained by high layer signaling.

There are 7 types of uplink-downlink configuration shown in Table 1. For each subframe in a radio frame, "D" marks a downlink subframe for downlink transmission, and "U" marks an uplink sub-frame. Frame for uplink transmission, "S" for a special subframe. The special subframe has the following three areas: a downlink pilot time slot (DwPTS), a guard interval (GP, Guard Period), and an uplink pilot time slot (UpPTS).

Table 1

LTE/LTE-A technology downlink transmission uses Orthogonal Frequency Division Multiplexing (OFDM) modulation technology, data is modulated on the subcarriers in the frequency domain, and then converted to the time domain to increase the upper cyclic prefix. Form a complete time domain transmit OFDM symbol. A cyclic prefix (CP) is used to resist symbol interference generated by multipath in the time domain and inter-subcarrier interference generated in the frequency domain. In the LTE/LTE-A system, there are two types of CPs, one is a normal cyclic prefix (NCP), and the other is an extended cyclic prefix (ECP). Extended CP applications are used in scenarios where multipath delays are extended. In the case of a normal CP, the subcarrier spacing is 15 kHz; in the case of an extended CP, there are two subcarrier spacings, 15 kHz and 7.5 kHz, respectively.

The signal transmitted in each time slot is described by one or more resource grids, and the resource grid is composed of

Subcarriers and

OFDM symbols are constructed. among them,

Representing the number of Physical Resource Blocks (PRBs) or Resource Blocks (RBs),

Represents the number of subcarriers in the resource block,

Represents the number of OFDM symbols in a slot. Table 2 shows the physical resource block parameters. The number of OFDM symbols and the number of subcarriers on one RB are shown in Table 2. Table 3 shows the OFDM symbol parameters, and the length of the cyclic prefix is as shown in Table 3.

Table 2

table 3

Number of physical resource blocks

It is determined by the downlink transmission bandwidth configured by the cell, and has a minimum value of 6 and a maximum value of 110.

The same PRB on two consecutive time slots in the same subframe is called a PRB pair.

3 is a schematic diagram of a downlink resource grid according to the related art. As shown in FIG. 3, each unit in a resource grid is called a resource element (RE, Resource Element), and is marked with an index pair (k, l). among them,

Indicates the subcarrier number in the frequency domain.

Indicates the OFDM symbol number in the time domain.

An antenna port is defined as the channel through which symbols transmitted on this antenna port pass, and can be guessed by the channel through which other symbols transmitted on the same port pass. An antenna port is also defined with a corresponding sequence number to distinguish between antenna ports and an index of the antenna port.

The Downlink Physical Channel corresponds to a set of resource units for carrying information from the upper layer. The downlink physical information includes: a Physical Downlink Shared Channel (PDSCH), a Physical Multicast Channel (PMCH), a Physical Broadcast Channel (PBCH), and physical control. The Physical Control Format Indicator Channel (PCFICH), the Physical Downlink Control Channel (PDCCH), and the Physical Hybrid ARQ Indicator Channel (PHICH). The Enhanced Physical Downlink Control Channel (EPDCCH) is enhanced.

The downlink physical signal (Downlink Physical Signal) corresponds to a set of resource elements, which are used by the physical layer and are not used to carry upper layer information. The downlink physical signals include: a pilot signal (RS, a reference signal), a synchronization signal, and a discovery signal.

The pilot signal is also called a pilot, and has the following types: Cell-specific Reference Signal (CRS), and Multicast Broadcast Single Frequency Network (Mb) MBSFN) pilot (MBSFN reference signals), UE-specific pilot (Demodulation Reference Signal (DMRS)), positioning pilot signal, CSI reference signal (CSI reference signal, CSI for short) -RS). The UE-specific pilots have the following two types: UE-specific reference signals associated with PDSCH and Demodulation reference signals associated with EPDCCH.

Channel State Measurement Pilot (CSI-RS) is used by the terminal to predict channel conditions. A CSI-RS that uses non-zero power transmission is called a non-zero power CSI-RS (NZP CSI-RS); sometimes to avoid interference, it is necessary to avoid data transmission on some REs on the PDSCH, and use zero-power transmission CSI-RS. The mode is implemented as a zero-power CSI-RS (ZP CSI-RS), and the corresponding resource unit set is a Zero Power CSI-RS Resource. Sometimes, in order to measure interference, a CSI-RS is transmitted with zero power, and the corresponding resource unit set is called a Channel-State Information-Interference Measurement Resource (CSI-IM Resource).

The CSI-RS configuration (CSI-RS configuration) is used to indicate the RE mapped by the CSI-RS, that is, the RE used for transmitting the CSI-RS, and the CSI-RS configuration sequence number is used to distinguish different CSI-RS configurations. . A CSI reference signal subframe configuration is used to indicate a subframe in which a CSI-RS transmission is located.

A CSI-RS configuration is a CSI-RS configuration with a certain number of antenna ports, for example, a CSI-RS configuration with a configuration number of 0 with an antenna port number of 8. Usually the serial number is the index number.

In the related art, a CSI-RS having a port number of 1, 2, 4, 8, 12, 16 is supported, and the number of CSI-RS resource patterns of these port numbers is repeated on each PRB pair of the bandwidth range on the transmission subframe.

The CSI-RS resource with the port number of 1, 2, 4, and 8 is composed of a single CSI-RS resource, and the CSI-RS resources with the port number of 12 and 16 are configured by multiple CSI-RSs. Aggregated.

The base station or the terminal usually measures the channel state through a channel state measurement process (CSI Process). One CSI-RS resource is usually configured in one CSI process, and the terminal feeds back according to the measurement of the CSI-RS.

4 is a schematic diagram of a resource pattern of a CSI-RS on an RB pair according to a port number of 4 in the related art; FIG. 5 is a resource pattern of a CSI-RS on an RB pair according to the related art in FIG. schematic diagram.

In order to make full use of power and improve the accuracy of channel measurement, the ports are divided into multiple groups, and the ports in the group are code division multiplexed.

The base station notifies the terminal about the CSI-RS by using upper layer signaling, and the information includes: a CSI-RS resource configuration identifier, a CSI-RS port number, a CSI-RS configuration, and a CSI-RS subframe. Configuration.

The CRS can be used for both channel state measurement and channel coefficient estimation when receiving demodulation, but as the number of ports increases, the overhead increases dramatically. Therefore, when the number of ports is 8, the CRS is no longer used to measure the channel state, and the CSI-RS with low pilot density and low overhead is used instead. But as technology and demand evolve, it needs Techniques for further development of a greater number of antenna termination applications, such as the number of ports 20, 24, 28, 32, etc., involve measurements of the channel state of these larger numbers of ports, however, the prior art cannot support more ports than 16 CSI-RS transmission.

In the related art, the density of CSI-RS transmission is 1RE/PRB/Port, that is, the CSI-RS of each port is transmitted on each RB of the system bandwidth, and on average, each port uses one RE per RB. . As the number of ports increases, the overhead of CSI-RS transmission over the system bandwidth will increase. In order to support CSI-RS transmission with a port number greater than 16, if the newly designed CSI-RS is not compatible with the CSI-RS in the original version, the overhead of CSI-RS transmission is increased, and the efficiency of data transmission by the system is reduced.

In the related art, the overhead of CSI-RS transmission on the system bandwidth is large, which reduces the problem of the efficiency of the system transmission data, and there is no effective solution at present.

Summary of the invention

The embodiment of the invention provides a method, a device and a system for transmitting pilot configuration information, so as to at least solve the problem that the CSI-RS transmission in the related art has a large overhead on the system bandwidth and reduces the efficiency of the system transmission data.

According to an embodiment of the present invention, a method for transmitting pilot configuration information is provided.

Transmitting, by the base station, signaling including configuration information of a transport channel state measurement pilot resource CSI-RS resource;

The configuration information includes: the number of ports, the number of CSI-RS configurations, the number of CSI-RS configuration ports, and the CSI-RS configuration sequence number.

Further, there are at least two types of CSI-RS configurations in the configuration information.

Further, the number of ports of the first type of CSI-RS configuration of the two types is different from the number of ports of the second type of CSI-RS configuration of the two types;

Alternatively, the pilot density of the first type of CSI-RS configuration of the two types is different from the pilot density of the second type of CSI-RS configuration of the two types.

Further, the configuration information of the CSI-RS resource further includes: aggregation mode indication information, the candidate aggregation mode has a Q class, and Q is an integer greater than 1.

Further, at least one of the following types exists in the candidate aggregation mode type:

In the case where the CSI-RS is aggregated by two types of CSI-RS configurations, the first type of CSI-RS configuration of the two types is the same as the two types of the two types. The second type of CSI-RS configuration has a different number of ports;

In the case that the CSI-RS is aggregated by two types of CSI-RS configurations, the first type of CSI-RS configuration is different from the second type CSI-RS configuration. ;

In a case where the CSI-RS is aggregated by two types of CSI-RS configurations, the first type of CSI-RS configuration is different from the pilot density of the configuration of the second type CSI-RS;

The partial resource unit RE does not transmit the CSI-RS in the aggregation of the CSI-RS configuration.

Further, the first type of code division multiplexing length is 4, and the second type of code division multiplexing length is 8;

The first type of pilot density is 1RE per port per RB, and the second type of pilot density is 0.5RE per port per RB.

Further, the number of ports of the CSI-RS is divided into at least two sets, and the CSI-RS corresponding to the first set of the two sets adopts a first type of aggregation mode, and the second set of the two sets The corresponding CSI-RS adopts a second type of aggregation mode, wherein the first type of aggregation mode is different from the second type of aggregation mode.

Further, the first type of aggregation mode is different from the second type of aggregation mode, including at least one of the following:

In the first type of aggregation mode, the number of ports participating in an aggregated CSI-RS configuration is only one. In the second type of aggregation mode, the number of ports participating in an aggregated CSI-RS configuration is multiple. ;

In the first type of aggregation mode, there is only one code division multiplexing mode of the CSI-RS configuration participating in the same aggregation, and in the second type of aggregation mode, participating in an aggregated CSI-RS configuration There are many ways to code division multiplexing;

In the first type of aggregation mode, the pilot density of the CSI-RS configuration participating in the same aggregation is only one type. In the second type of aggregation mode, the pilots participating in an aggregated CSI-RS configuration are involved. There are many kinds of density;

In the first type of aggregation mode, all REs of the CSI-RS configuration are transmitted with CSI-RS. In the second type of aggregation mode, some REs in the aggregation of the CSI-RS configuration do not transmit CSI- RS.

Further, the configuration information of the CSI-RS resource further includes: RE information indicating that the CSI-RS is not transmitted.

Further, for the CSI-RS in which the CSI-RS configuration port number is M, a part of the REs in the aggregation of the CSI-RS configuration does not transmit the CSI-RS, where M is an integer greater than 1.

Further, for the CSI-RS whose CSI-RS configuration port number is M, the CSI-RS code division multiplexing mode is divided into two sets, and the corresponding CSI is set in the first one of the two sets. - A part of the REs in the aggregation of the RS configuration does not transmit the CSI-RS, and all the REs of the CSI-RS configuration corresponding to the second set of the two sets transmit the CSI-RS, where M is an integer greater than 1. .

Further, the code division multiplexing length of the first set is 2, and the code division multiplexing length of the second set is 4.

Further, M is 20 or 28.

Further, the configuration information of the CSI-RS resource further includes: pilot density indication information of the CSI-RS configuration.

According to another embodiment of the present invention, a method for transmitting pilot configuration information is further provided, including:

Receiving signaling sent by the base station, where the signaling is signaling including configuration information of a transport channel state measurement pilot resource CSI-RS resource; the configuration information includes: number of ports, number of CSI-RS configurations, CSI-RS configuration Number of ports, CSI-RS configuration number.

Further, the number of ports of the CSI-RS is divided into at least two sets, and the CSI-RS corresponding to the first set of the two sets adopts a first type of aggregation mode, and the second set of the two sets The corresponding CSI-RS adopts a second type of aggregation mode, where the first type of aggregation mode and the second type of aggregation mode Not the same.

Further, M is 20 or 28.

According to another embodiment of the present invention, a transmission apparatus for pilot configuration information is further provided, which is located at a base station side, and includes:

a sending module, configured to send signaling that includes configuration information of a transport channel state measurement pilot resource CSI-RS resource;

According to another embodiment of the present invention, a transmission device for transmitting pilot configuration information is provided, which is located in the terminal, and includes:

a receiving module, configured to receive signaling sent by the base station, where the signaling is signaling that includes configuration information of a transport channel state measurement pilot CSI-RS resource resource;

According to another embodiment of the present invention, a transmission system for pilot configuration information is provided, including: a terminal and a base station;

The terminal is configured to receive signaling sent by the base station, where the signaling is signaling that includes configuration information of a channel state measurement pilot CSI-RS resource resource;

In the embodiment of the present invention, a computer storage medium is further provided, and the computer storage medium may store an execution instruction for performing the implementation of the transmission method of the pilot configuration information in the foregoing embodiment.

According to the embodiment of the present invention, the base station sends signaling including the configuration information of the transport channel state measurement pilot resource CSI-RS resource, where the configuration information includes: the number of ports, the number of CSI-RS configurations, the number of CSI-RS configuration ports, and CSI- The RS configuration sequence number solves the problem that the CSI-RS transmission in the related art has a large overhead on the system bandwidth, reduces the efficiency of the system transmission data, and reduces the overhead of the CSI-RS transmission, thereby improving the efficiency of the system transmission data.

DRAWINGS

The drawings described herein are intended to provide a further understanding of the invention, and are intended to be a part of the invention. In the drawing:

1 is a schematic diagram of a first type of frame structure according to the related art;

2 is a schematic diagram of a second type of frame structure according to the related art;

3 is a schematic diagram of a downlink resource grid according to the related art;

4 is a schematic diagram of a resource pattern of a CSI-RS with a port number of 4 on one RB pair according to the related art;

5 is a schematic diagram of a resource pattern of a CSI-RS with a port number of 8 on one RB pair according to the related art;

FIG. 6 is a flowchart 1 of a method for transmitting pilot configuration information according to an embodiment of the present invention;

FIG. 7 is a second flowchart of a method for transmitting pilot configuration information according to an embodiment of the present invention; FIG.

FIG. 8 is a structural block diagram 1 of a transmission apparatus for pilot configuration information according to an embodiment of the present invention; FIG.

FIG. 9 is a structural block diagram 2 of a transmission apparatus for pilot configuration information according to an embodiment of the present invention.

detailed description

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

It is to be understood that the terms "first", "second" and the like in the specification and claims of the present invention are used to distinguish similar objects, and are not necessarily used to describe a particular order or order.

In this embodiment, a method for transmitting pilot configuration information is provided. FIG. 6 is a flowchart 1 of a method for transmitting pilot configuration information according to an embodiment of the present invention. As shown in FIG. 6, the process includes the following steps. step:

Step S602: The base station generates signaling for configuring configuration information of a pilot channel state measurement pilot pilot resource CSI-RS resource, where the configuration information includes: number of ports, number of CSI-RS configurations, number of CSI-RS configuration ports, and CSI-RS configuration Serial number

Step S604, the base station sends the signaling.

Through the foregoing steps, the base station sends signaling including configuration information of the transport channel state measurement pilot resource CSI-RS resource, where the configuration information includes: the number of ports, the number of CSI-RS configurations, the number of CSI-RS configuration ports, and the CSI-RS configuration. The serial number solves the problem that the CSI-RS transmission in the related technology has a large overhead on the system bandwidth, reduces the problem of the efficiency of the system transmission data, reduces the overhead of the CSI-RS transmission, and improves the efficiency of the system transmission data.

With the embodiment, not only the CSI-RS with the port number greater than 16 but also the newly designed CSI-RS is compatible with the CSI-RS in the original version, thereby reducing the overhead of the CSI-RS transmission and improving the system transmission data. s efficiency.

In the embodiment of the present invention, there are at least two types of CSI-RS configurations in the configuration information.

It should be noted that the CSI-RS configuration participating in the aggregation has two types with greater flexibility than a single type. For example, if the number of CSI-RSs with the number of ports is 20, the CSI-RS configuration with the port number of 8 is used for aggregation. Because 20 is not an integer multiple of 8, the aggregation can only be performed with three CSI-RS configurations with a port number of 8. , will waste 4 ports of resources. If two CSI-RS configurations with a port number of 8 and a CSI-RS configuration with a port number of 4 participate in the aggregation, port resources are not wasted. For example, if a CSI-RS configuration with a code division multiplexing length of 8 is used for aggregation, three groups of 8 REs, that is, 24 REs, are used, and 4 REs are wasted; and 2 sets of CSIs with a code length of 8 are used. The RS configuration and a set of CSI-RS configurations with a code division multiplexing length of 4 can fully utilize power without wasting resources.

In the embodiment of the present invention, the number of ports of the first type of CSI-RS configuration of the two types is different from the number of ports of the second type of CSI-RS configuration of the two types;

It should be noted that two types of CSI-RS configuration with different port numbers participate in aggregation, which has greater flexibility.

It should be noted that the two types use different pilot densities, which can flexibly meet the requirements of CSI-RS for users with cost-saving and compatible transmission versions, and can select an appropriate proportion of pilot density according to different channel scenarios.

In the embodiment of the present invention, the configuration information of the CSI-RS resource further includes: aggregation mode indication information, the candidate aggregation mode has a Q class, and Q is an integer greater than 1.

It should be noted that there are multiple candidate aggregation methods to achieve different effects or functional purposes. When a CSI-RS is aggregated, a specific type is indicated.

It should be noted that two different types of CSI-RS configurations participate in aggregation with greater flexibility.

In the embodiment of the present invention, at least one of the following types exists in the candidate aggregation mode type:

In the case where the CSI-RS is aggregated by two types of CSI-RS configurations, the first type of CSI-RS configuration of the two types and the second of the two types of the two types The number of ports of the configuration of the type CSI-RS is different;

In a case where the CSI-RS is aggregated by two types of CSI-RS configurations, the first type of CSI-RS configuration is different from the code division multiplexing manner of the configuration of the second type of CSI-RS;

It should be noted that two CSI-RS configuration types with different code division multiplexing modes participate in aggregation, which has greater flexibility; for example, in the case of code division multiplexing length of 4, adjacent subcarriers The RE is a CSI-RS configuration with a port number of 8 in the multiplexing group. A CSI-RS with a number of aggregation ports of 20 or 28 wastes resources. However, the number of ports using the REs of adjacent subcarriers is a code division multiplexing group. A CSI-RS configuration of 8 and a RE of a conventional 4-port CSI-RS are CSI-RSs with a port number of 4 and a CSI-RS configuration aggregation port number of 20 or 28, which does not waste resources.

In a case where the CSI-RS is aggregated by two types of CSI-RS configurations, the first type of CSI-RS configuration is different from the pilot density of the configuration of the second type of CSI-RS;

A part of resource elements RE in the aggregation of the CSI-RS configuration does not transmit the CSI-RS.

It should be noted that some REs in the aggregation of the CSI-RS configuration do not transmit CSI-RS, which brings flexibility to aggregate CSI-RSs with different port numbers. For example, a CSI-RS configuration with a port number of 8 cannot be used to aggregate CSI-RSs whose number of ports is not an integer multiple of 8. However, if some REs in the aggregation do not transmit CSI-RS, the number of ports can be aggregated to be less than 8. An integer multiple of the CSI-RS.

In the embodiment of the present invention, the first type of code division multiplexing length is 4, and the second type of code division multiplexing length is 8; it should be noted that the code division multiplexing length is 4 CSI. The -RS configuration type and the CSI-RS configuration type with a code division multiplexing length of 8 participate in aggregation, which provides greater flexibility.

It should be noted that the first type of pilot density is that the average RB of the RB per resource block per port can be compatible with the traditional CSI-RS, and the second type of pilot density is 0.5RE per port per RB. The adjacent RBs respectively transmit CSI-RSs of different ports, while reducing overhead.

In an embodiment of the present invention, the number of ports of the CSI-RS is divided into at least two sets, and the CSI-RS corresponding to the first set of the two sets adopts a first type of aggregation mode, and the second of the two sets The CSI-RS corresponding to the set adopts the second type of aggregation mode, wherein the first type of aggregation mode is different from the second type of aggregation mode.

Another embodiment of the present embodiment is that the number of ports of the CSI-RS is divided into two sets, the CSI-RS corresponding to the first set adopts the first type of aggregation mode, and the second set corresponds to the CSI-RS adopts the second type. Types of aggregation; the first type of aggregation is different from the second type of aggregation.

It should be noted that the CSI-RSs with different port numbers are suitable for different aggregation modes, for example, the number of ports is an integer multiple of 8, {24, 32}, and the number of ports is 8 CSI-RS configuration aggregation; A non-integer multiple of 8, {20, 28}, a CSI-RS configuration with a port number of 8 and a CSI-RS configuration with a port number of 4.

For example, the number of ports is an integer multiple of 8, {24, 32}, CSI-RS configuration aggregation with a code division multiplexing length of 8; a non-integer multiple of 8 ports, {20, 28}, using code division A CSI-RS configuration of length 8 is used to aggregate with a CSI-RS configuration with a code division multiplexing length of 4.

For example, the number of ports is an integer multiple of 8, {24, 32}, and the number of ports is 8 CSI-RS configuration aggregation, all the aggregated REs transmit CSI-RS; the number of ports is a non-integer multiple of 8, {20, 28 }, CSI-RS configuration with port number 8 is used for aggregation. Some REs in the aggregation do not transmit CSI-RS.

In the embodiment of the present invention, the first type of aggregation mode is different from the second type of aggregation mode, including at least one of the following:

In the first type of aggregation mode, the number of ports participating in an aggregated CSI-RS configuration is only one. In the second type of aggregation mode, the number of ports participating in an aggregated CSI-RS configuration is multiple;

In the first type of aggregation mode, there is only one code division multiplexing mode of the CSI-RS configuration participating in the same aggregation. In the second type of aggregation mode, the code points of an aggregated CSI-RS configuration are involved. There are many ways to reuse;

In the first type of aggregation mode, the pilot density of the CSI-RS configuration participating in the same aggregation is only one. In the second type of aggregation mode, the pilot density of the CSI-RS configuration participating in an aggregation is Multiple

In the first type of aggregation mode, all the REs of the CSI-RS configuration are transmitted with the CSI-RS. In the second type of aggregation mode, some REs in the aggregation of the CSI-RS configuration do not transmit the CSI-RS.

In an embodiment of the present invention, the configuration information of the CSI-RS resource further includes: RE information indicating that the CSI-RS is not transmitted.

In the embodiment of the present invention, for a CSI-RS whose number of CSI-RS configuration ports is M, a part of the REs in the aggregation of the CSI-RS configuration does not transmit the CSI-RS, where M is an integer greater than 1.

In the embodiment of the present invention, for the CSI-RS whose number of CSI-RS configuration ports is M, the CSI-RS code division multiplexing mode is divided into two sets, and the first one of the two sets corresponds to A part of the REs in the aggregation of the CSI-RS configuration does not transmit the CSI-RS, and all the REs of the CSI-RS configuration corresponding to the second set of the two sets transmit the CSI-RS, where M is greater than 1. Integer.

It should be noted that, for a CSI-RS with a port number of M, different aggregation modes are adopted in different code division multiplexing modes, so that different code division multiplexing modes can be supported. For example, for a CSI-RS with a port number of {20, 28}, a code division multiplexing length of 2 is used, and a CSI-RS configuration with a port number of 8 is used for aggregation, and some REs in the aggregation of the CSI-RS configuration are not transmitted. The CSI-RS is configured to aggregate the CSI-RS configuration with the port number of 8 and the CSI-RS configuration with the port number of 4, and all the REs of the CSI-RS configuration are transmitted with the CSI-RS.

In an embodiment of the invention, the first set has a code division multiplexing length of 2, and the second set has a code division multiplexing length of 4.

In an embodiment of the invention, M is 20 or 28.

In the embodiment of the present invention, the configuration information of the CSI-RS resource further includes: pilot density indication information of the CSI-RS configuration.

In this embodiment, a method for transmitting pilot configuration information is provided. FIG. 7 is a second flowchart of a method for transmitting pilot configuration information according to an embodiment of the present invention. As shown in FIG. 7, the process includes the following steps. step:

Step S702: The terminal receives the signaling sent by the base station, where the signaling is signaling including configuration information of a transport channel state measurement pilot pilot resource CSI-RS resource, where the configuration information includes: the number of ports, the number of CSI-RS configurations, Number of CSI-RS configuration ports, CSI-RS configuration sequence number;

Step S704, the terminal parses the configuration information.

Through the foregoing steps, the terminal receives the signaling sent by the base station, where the signaling is signaling including the configuration information of the transmission channel state measurement pilot CSI-RS resource resource; the configuration information includes: the number of ports, the number of CSI-RS configurations, CSI - The number of RS configuration ports and the CSI-RS configuration sequence number. The terminal parses the configuration information.

In the embodiment of the present invention, the first type of code division multiplexing length is 4, and the second type of code division multiplexing length is 8;

In an embodiment of the invention, M is 20 or 28.

In this embodiment, a device for transmitting pilot configuration information is provided, which is used to implement the foregoing embodiments and preferred embodiments, and details are not described herein. As used below, the term "module" may implement a combination of software and/or hardware of a predetermined function. Although the apparatus described in the following embodiments is preferably implemented in software, hardware, or a combination of software and hardware, is also possible and contemplated.

FIG. 8 is a block diagram showing the structure of a transmission apparatus for transmitting pilot configuration information, which is located on the base station side. As shown in FIG. 8, the apparatus includes:

The generating module 82 is configured to generate signaling for configuring configuration information of the transport channel state measurement pilot resource CSI-RS resource; the configuration information includes: the number of ports, the number of CSI-RS configurations, the number of CSI-RS configuration ports, and the CSI-RS configuration Serial number.

The sending module 84 is configured to send the signaling.

FIG. 9 is a second structural block diagram of a device for transmitting pilot configuration information according to an embodiment of the present invention. The device is located in a terminal. As shown in FIG. 9, the device includes:

The receiving module 92 is configured to receive signaling sent by the base station, where the signaling is signaling that includes configuration information of a transport channel state measurement pilot CSI-RS resource resource;

The parsing module 94 is configured to parse the configuration information.

The terminal is configured to receive signaling sent by the base station, where the signaling is signaling that includes configuration information of a transport channel state measurement pilot CSI-RS resource resource;

According to the present invention, the base station transmits signaling including configuration information of a transport channel state measurement pilot resource CSI-RS resource, the configuration information including: number of ports, number of CSI-RS configurations, number of CSI-RS configuration ports, CSI-RS configuration The serial number solves the problem that the CSI-RS transmission in the related technology has a large overhead on the system bandwidth, reduces the problem of the efficiency of the system transmission data, reduces the overhead of the CSI-RS transmission, and improves the efficiency of the system transmission data.

The invention will now be described in detail in conjunction with the preferred embodiments and embodiments.

Embodiment 1

In this embodiment, the base station first determines configuration information of the CSI-RS resource, generates signaling including configuration information of the CSI-RS resource, and then transmits signaling including configuration information of the CSI-RS resource. For example, the port number information is represented by a bit, the bit number indicates the number of CSI-RS configurations, the c bit indicates the number of CSI-RS configuration ports, and the d bit indicates the CSI-RS configuration sequence number, where a+b+c+ d=X.

Alternatively, a bit (bit) may be used to indicate the port number information, b bit is a CSI-RS configuration number, and c bit is a joint coding number of the CSI-RS configuration port number and the CSI-RS configuration sequence number, where a+b+c =X.

Alternatively, a bit (bit) may be used to indicate the joint number of the port number information, the number of CSI-RS configurations, and the number of CSI-RS configuration ports, and the b bit indicates the CSI-RS configuration sequence number, where a+b=X.

Alternatively, X-bit (bit) may be used to indicate the joint coding of the port number information, the number of CSI-RS configurations, the number of CSI-RS configuration ports, and the CSI-RS configuration sequence number.

The number of ports may be a value in {20, 24, 28, 32}, the number of CSI-RS configuration ports may be a value in {4, 8}, and the number of CSI-RS configurations may be {1, 2, The value in 3, 4, 5, 6, 7}.

Embodiment 2

In this embodiment, there are two types of CSI-RS configuration in the configuration information.

For example, a CSI-RS configuration with a number of aggregation ports of 8 and a CSI-RS configuration with a number of aggregation ports of 4; for example, a CSI-RS configuration with a code division multiplexing length of 8 and code division multiplexing into a length A CSI-RS configuration of 2.

Embodiment 3

In this embodiment, the number of ports of the first type of CSI-RS configuration is different from the number of ports of the second type of CSI-RS configuration; or the first type of CSI of the two types The pilot density of the RS configuration is different from the pilot density of the second type of CSI-RS configuration of the two types.

For example, for example, the number of ports of the first type of CSI-RS configuration is 4, and the number of ports of the second type of CSI-RS configuration is 8; for example, the number of ports of the first type of CSI-RS configuration 2 is the number of ports of the second type of CSI-RS configuration; for example, the number of ports of the first type of CSI-RS configuration is 2, and the number of ports of the second type of CSI-RS configuration is 8;

For another example, the pilot density of the first type of CSI-RS configuration is 1RE/PRB/Port, and the pilot density of the second type of CSI-RS configuration is 0.5RE/PRB/Port; for example, the first type The pilot density of the CSI-RS configuration of the type is 1RE/PRB/Port, and the pilot density of the second type of CSI-RS configuration is 0.25RE/PRB/Port;

Embodiment 4

In this embodiment, the configuration information of the CSI-RS resource further includes: an aggregation mode indication information, where the candidate aggregation mode has a Q class, and Q is an integer greater than 1:

For example, if Q is 2, there are two types of candidate aggregation modes; Q is 3, and there are three types of candidate aggregation modes; the aggregation mode indication information indicates that one of the candidate aggregation modes is adopted; for example, indicating that the first type of aggregation mode is adopted. Or indicate a second type of aggregation.

Embodiment 5

In this embodiment, there is at least one type of candidate aggregation mode: CSI-RS is aggregated by two types of CSI-RS configurations.

For example, for example, the number of ports of the first type of CSI-RS configuration is 4, and the number of ports of the second type of CSI-RS configuration is 8; for example, the number of ports of the first type of CSI-RS configuration 2 is the number of ports of the second type of CSI-RS configuration; for example, the number of ports of the first type of CSI-RS configuration is 2; the number of ports of the second type of CSI-RS configuration is 8; for example, One type of CSI-RS configuration has a code division multiplexing length of 4, and the second type of CSI-RS configuration has a code division multiplexing length of 8; for example, a code type of the first type of CSI-RS configuration The multiplexing length is 2, and the code division multiplexing length of the second type of CSI-RS configuration is 4; for example, the first type of CSI-RS The configuration is multiplexed with REs on adjacent subcarriers, and the second type of CSI-RS configuration is multiplexed with REs on non-adjacent subcarriers; for example: pilots of the first type of CSI-RS configuration The density is 1RE/PRB/Port, and the pilot density of the second type of CSI-RS configuration is 0.5RE/PRB/Port; for example, the pilot density of the first type of CSI-RS configuration is 1RE/PRB/ Port, the pilot density of the second type of CSI-RS configuration is 0.25RE/PRB/Port;

Embodiment 6

In this embodiment, there is at least one type of candidate aggregation mode: CSI-RS is aggregated by two types of CSI-RS configurations, and the number of ports of the first type of CSI-RS configuration and the second type of CSI-RS configuration different.

For example, for example, the number of ports of the first type of CSI-RS configuration is 4, and the number of ports of the second type of CSI-RS configuration is 8 by two second types of CSI-RS configurations and one A type of CSI-RS configuration is aggregated into CSI-RSs with a port number of 20, and three CSI-RS configurations of the second type are aggregated with one CSI-RS configuration of the first type into CSI-RSs with a port number of 28. .

For another example, the number of ports of the first type of CSI-RS configuration is 2, and the number of ports of the second type of CSI-RS configuration is 4; for example, the number of ports of the first type of CSI-RS configuration is 2, second. The number of ports of the type of CSI-RS configuration is 8.

Example 7

In this embodiment, there is at least one type of candidate aggregation mode: the CSI-RS is aggregated by two types of CSI-RS configurations, and the code of the first type of CSI-RS configuration and the second type of CSI-RS are configured. The multiplexing method is different.

For example, for example, the code division multiplexing length of the first type of CSI-RS configuration is 4, and the code division multiplexing length of the second type of CSI-RS configuration is 8, and the number of 2 ports is 8. The second type of CSI-RS configuration is aggregated with a first type of CSI-RS configuration with a port number of 4 into a CSI-RS with a port number of 20, and a second type of CSI-RS with a number of three ports of 8. The configuration and the first type of CSI-RS configuration with a port number of 4 are aggregated into CSI-RSs with a port number of 28.

For another example, the first type of CSI-RS configuration is multiplexed with REs on adjacent subcarriers, and the second type of CSI-RS configuration is multiplexed with REs on non-adjacent subcarriers by two ports. The first type of CSI-RS configuration with a number of 8 and the first type of CSI-RS configuration with a port number of 4 are aggregated into a CSI-RS with a port number of 20, and the first type with 3 ports of 8 The CSI-RS configuration is aggregated with a first type of CSI-RS configuration with a port number of 4 into a CSI-RS with a port number of 28.

Example 8

In this embodiment, when the CSI-RS is aggregated by two types of CSI-RS configurations, the configuration of the first type of CSI-RS configuration and the configuration of the second type of CSI-RS Frequency density different;

For example, for example, the pilot density of the first type of CSI-RS configuration is 1RE/PRB/Port, and the pilot density of the second type of CSI-RS configuration is 0.5RE/PRB/Port; for example, The pilot density of the first type of CSI-RS configuration is 1RE/PRB/Port, and the pilot density of the second type of CSI-RS configuration is 0.25RE/PRB/Port;

Example nine

In this embodiment, there is at least one type of candidate aggregation mode: CSI-RS is aggregated by two types of CSI-RS configurations, and the first type of code division multiplexing has a length of 4, and the second type of code division multiplexing Length 8

Example ten

In this embodiment, there is at least one type of candidate aggregation mode: a part of the REs in the aggregation of the CSI-RS configuration does not transmit the CSI-RS.

For example, for example, the RE of the last 4 ports in the CSI-RS configuration with the largest aggregation number does not transmit the CSI-RS, such as a CSI-RS with a number of CSI-RS configuration aggregation ports of 8 ports of 8 ports. The four REs of the last four ports of the CSI-RS configuration with the highest sequence number do not transmit CSI-RS; for example, the base station indicates that the REs of the four ports do not transmit CSI-RS, such as CSI with a number of four ports of 8. The RS configuration has a CSI-RS with a number of aggregation ports of 28. The base station indicates that the RE corresponding to the first four ports of the last CSI-RS configuration does not transmit the CSI-RS.

Embodiment 11

In this embodiment, the number of ports of the CSI-RS is divided into two sets, the CSI-RS corresponding to the first set adopts the first type of aggregation mode, and the CSI-RS corresponding to the second set adopts the second type of aggregation. The first type of aggregation is different from the second type of aggregation.

For example, for example, the number of ports is an integer multiple of 8, {16, 24, 32}, using CSI-RS configuration aggregation with a port number of 8; the number of ports is a non-integer multiple of 8, {12, 20, 28} A CSI-RS configuration with a port number of 8 and a CSI-RS configuration with a port number of 4 are used.

For example, the number of ports is an integer multiple of 8, {16, 24, 32}, using a CSI-RS configuration with a port number of 8. Aggregation, all the REs transmitted by the CSI-RS; the number of ports is a non-integer multiple of 8, {20, 28}, and the CSI-RS configuration of the port number is 8, and some REs in the aggregation do not transmit CSI-RS.

For example, a set of ports having a number of ports less than or equal to 16 {1, 2, 4, 8, 12, 16} adopts a set of port pilot densities of 1RE/PRB/Port; a number of ports greater than 16 {20, 24, 28 32}, using two types of port pilot densities, respectively 1RE/PRB/Port and 0.5RE/PRB/Port.

Example twelve

In this embodiment,

In the first type of aggregation mode, the number of ports participating in an aggregated CSI-RS configuration is only one. In the second type of aggregation mode, the number of ports participating in an aggregated CSI-RS configuration is multiple.

For example, the CSI-RS corresponding to the port number set {12, 16, 24, 32} adopts the first type of aggregation mode, and the CSI-RS with the port number of 12 uses the CSI-RS configuration aggregation with the port number of 4. For a CSI-RS of {16, 24, 32}, a CSI-RS configuration with a port number of 8 is used; the CSI-RS corresponding to the port number set {20, 28} adopts a second type of aggregation, and the number of ports is { The CSI-RS of 20, 28} adopts a CSI-RS configuration with a port number of 8 and a CSI-RS configuration with a port number of 4.

For example, the CSI-RS corresponding to the port number set {16, 24, 32} adopts the first type of aggregation mode, and the CSI-RS with the port number of {16, 24, 32} adopts the CSI-RS configuration with the port number of 8. Aggregation; the number of ports is {12, 20, 28}. The corresponding CSI-RS adopts the second type of aggregation. The number of ports with the number of ports is {12, 20, 28}. The number of ports is 8 for the number of ports. The CSI-RS configuration is aggregated with a CSI-RS configuration with a port number of 4.

Example thirteen

In this embodiment, in the first type of aggregation mode, there is only one code division multiplexing mode of the CSI-RS configuration participating in the same aggregation; in the second type of aggregation mode, participating in an aggregated CSI-RS configuration There are many ways to code division multiplexing.

For example, for example, the number of ports is an integer multiple of 8, {24, 32}, CSI-RS configuration aggregation with a code division multiplexing length of 8; the number of ports is a non-integer multiple of 8, {20, 28}, A CSI-RS configuration with a code division multiplexing length of 8 and a CSI-RS configuration with a code division multiplexing length of 4 are used.

For another example, the CSI-RS configuration of the first type of code division multiplexing mode is multiplexed with REs on adjacent subcarriers, and the CSI-RS configuration of the second type of code division multiplexing mode is performed on non-adjacent subcarriers. RE reuse;

The CSI-RS configuration corresponding to the port number set {12, 16, 24, 32} adopts a type code division multiplexing method. That is, the CSI-RS configuration corresponding to the port number of 12 adopts the second type code division multiplexing mode, and the CSI-RS configuration corresponding to {16, 24, 32} adopts the first type code division multiplexing mode.

The CSI-RS configuration corresponding to the port number set {20, 28} adopts the first type of code division multiplexing mode and the second type of code division multiplexing mode;

Embodiment 14

In this embodiment, in the first type of aggregation mode, the pilot density of the CSI-RS configuration participating in the same aggregation is only one type; in the second type of aggregation mode, the pilots participating in an aggregated CSI-RS configuration are used. There are many kinds of densities.

For example, a set of ports having a number of ports less than or equal to 16 {1, 2, 4, 8, 12, 16} adopts a set of port pilot densities of 1RE/PRB/Port; a number of ports greater than 16 {20, 24 , 28, 32}, using two types of port pilot density, respectively, 1RE / PRB / Port and 0.5RE / PRB / Port.

Example fifteen

In this embodiment, in the first type of aggregation mode, all the REs of the CSI-RS configuration are transmitted by the CSI-RS; in the second type of aggregation mode, some of the REs in the CSI-RS configuration are not transmitted by the CSI- RS.

For example, for example, the CSI-RS corresponding to the port number set {12, 16, 24, 32} adopts the first type of aggregation mode; the CSI-RS corresponding to the port number set {20, 28} adopts the second type of aggregation. the way;

For example, the CSI-RS corresponding to the port number set {, 16, 24, 32} adopts the first type of aggregation mode; the CSI-RS corresponding to the port number set {12, 20, 28} adopts the second type of aggregation mode;

Example sixteen

In this embodiment, for a CSI-RS with a port number of M, a part of the REs in the aggregation of the CSI-RS configuration does not transmit a CSI-RS, where M is an integer greater than 1.

For example, the number of ports is a non-integer multiple of 8, for example, M is 20 or M is 28, and CSI-RS configuration aggregation with a port number of 8 is used, and some REs in the aggregation do not transmit CSI-RS.

Example seventeen

In this embodiment, for a CSI-RS with a port number of M, the code division multiplexing mode is divided into two sets, and some REs in the aggregation of the corresponding CSI-RS configuration in the first set do not transmit CSI-RS. All REs of the aggregate of the CSI-RS configuration corresponding to the second set transmit CSI-RS, where M is an integer greater than one.

For example, for example, M is 20, or 28; the first set is a set of code division multiplexing length 2, the second set is a set of code division multiplexing length 4; or the first set is The REs on adjacent subcarriers are multiplexed, and the second set is multiplexed on REs on non-adjacent subcarriers.

Example 18

In this embodiment, the configuration information of the CSI-RS resource further includes: pilot density indication information of the CSI-RS configuration.

For example, indicating the pilot density of each CSI-RS configuration; for example, indicating the pilot density of each group of CSI-RS configurations, where each group of CSI-RS configurations may have one or more CSI- RS configuration; for another example, indicating the pilot density of all CSI-RS configurations.

Through the description of the above embodiments, those skilled in the art can clearly understand that the method according to the above embodiment can be implemented by means of software plus a necessary general hardware platform, and of course, by hardware, but in many cases, the former is A better implementation. Based on such understanding, the technical solution of the present invention, which is essential or contributes to the prior art, may be embodied in the form of a software product stored in a storage medium (such as ROM/RAM, disk, The optical disc includes a number of instructions for causing a terminal device (which may be a mobile phone, a computer, a server, or a network device, etc.) to perform the method of various embodiments of the present invention.

Embodiments of the present invention also provide a storage medium. Optionally, in the embodiment, the storage medium may be configured to store program code for performing the method steps of the above embodiment:

Optionally, in this embodiment, the foregoing storage medium may include, but not limited to, a USB flash drive, a Read-Only Memory (ROM), a Random Access Memory (RAM), a mobile hard disk, and a magnetic memory. A variety of media that can store program code, such as a disc or a disc.

Optionally, in this embodiment, the processor performs the method steps of the foregoing embodiments according to the stored program code in the storage medium.

For example, the specific examples in this embodiment may refer to the examples described in the foregoing embodiments and the optional embodiments, and details are not described herein again.

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

The above description is only the preferred embodiment of the present invention, and is not intended to limit the present invention, and various modifications and changes can be made to the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and scope of the present invention are intended to be included within the scope of the present invention.

Industrial applicability

The foregoing technical solution provided by the embodiment of the present invention may be applied to a process of transmitting pilot configuration information, and the base station sends a packet. The signaling of the configuration information of the transmission channel state measurement pilot resource CSI-RS resource, the configuration information includes: the number of ports, the number of CSI-RS configurations, the number of CSI-RS configuration ports, and the CSI-RS configuration sequence number, which are related to the related art. The overhead of CSI-RS transmission on the system bandwidth is large, which reduces the problem of system data transmission efficiency, reduces the overhead of CSI-RS transmission, and improves the efficiency of system transmission data.

Claims

A method for transmitting pilot configuration information includes:

Transmitting, by the base station, signaling including configuration information of a transport channel state measurement pilot resource CSI-RS resource;

The configuration information includes: the number of ports, the number of CSI-RS configurations, the number of CSI-RS configuration ports, and the CSI-RS configuration sequence number.
The method of claim 1 wherein

There are at least two types of CSI-RS configurations in the configuration information.
The method of claim 2, wherein

The number of ports of the first type of CSI-RS configuration of the two types is different from the number of ports of the second type of CSI-RS configuration of the two types;

Alternatively, the pilot density of the first type of CSI-RS configuration of the two types is different from the pilot density of the second type of CSI-RS configuration of the two types.
The method of claim 1 wherein

The configuration information of the CSI-RS resource further includes: aggregation mode indication information, the candidate aggregation mode has a Q class, and Q is an integer greater than 1.
The method of claim 4, wherein

At least one of the following types exists in the candidate aggregation mode type:

In the case where the CSI-RS is aggregated by two types of CSI-RS configurations, the first type of CSI-RS configuration of the two types is the same as the two types of the two types. The second type of CSI-RS configuration has a different number of ports;

In the case that the CSI-RS is aggregated by two types of CSI-RS configurations, the first type of CSI-RS configuration is different from the second type CSI-RS configuration. ;

In a case where the CSI-RS is aggregated by two types of CSI-RS configurations, the first type of CSI-RS configuration is different from the pilot density of the configuration of the second type CSI-RS;

The partial resource unit RE does not transmit the CSI-RS in the aggregation of the CSI-RS configuration.
The method of claim 5, wherein

The first type of code division multiplexing length is 4, and the second type of code division multiplexing length is 8;

The first type of pilot density is 1RE per port per RB, and the second type of pilot density is 0.5RE per port per RB.
The method of claim 1 wherein

The number of ports of the CSI-RS is divided into at least two sets, and the CSI-RS corresponding to the first set of the two sets adopts a first type of aggregation mode, and the second set of the two sets corresponds to a CSI. The RS adopts a second type of aggregation mode, wherein the first type of aggregation mode is different from the second type of aggregation mode.
The method according to claim 7, wherein the first type of aggregation mode is different from the second type of aggregation mode, including at least one of the following:

In the first type of aggregation mode, the number of ports participating in an aggregated CSI-RS configuration is only one. In the second type of aggregation mode, the number of ports participating in an aggregated CSI-RS configuration is multiple. ;

In the first type of aggregation mode, there is only one code division multiplexing mode of the CSI-RS configuration participating in the same aggregation, and in the second type of aggregation mode, participating in an aggregated CSI-RS configuration There are many ways to code division multiplexing;

In the first type of aggregation mode, the pilot density of the CSI-RS configuration participating in the same aggregation is only one type. In the second type of aggregation mode, the pilots participating in an aggregated CSI-RS configuration are involved. There are many kinds of density;

In the first type of aggregation mode, all REs of the CSI-RS configuration are transmitted with CSI-RS. In the second type of aggregation mode, some REs in the aggregation of the CSI-RS configuration do not transmit CSI- RS.
The method of claim 1 wherein

The configuration information of the CSI-RS resource further includes: RE information indicating that the CSI-RS is not transmitted.
The method of claim 1 wherein

For a CSI-RS whose number of CSI-RS configuration ports is M, a part of REs in the aggregation of CSI-RS configurations does not transmit CSI-RS, where M is an integer greater than 1.
The method of claim 1 wherein

For the CSI-RS whose CSI-RS configuration port number is M, the CSI-RS code division multiplexing mode is divided into two sets, and the corresponding CSI-RS configuration under the first set of the two sets A part of the REs does not transmit a CSI-RS, and all of the aggregated CSI-RSs of the CSI-RS configuration corresponding to the second set of the two sets transmit CSI-RS, where M is an integer greater than one.
The method of claim 11 wherein

The first set has a code division multiplexing length of 2, and the second set has a code division multiplexing length of 4.
The method according to claim 10 or 11, wherein

M is 20 or 28.
The method of claim 1 wherein

The configuration information of the CSI-RS resource further includes: pilot density indication information of the CSI-RS configuration.
A method for transmitting pilot configuration information includes:

Receiving signaling sent by the base station, where the signaling is signaling including configuration information of a transport channel state measurement pilot resource CSI-RS resource; the configuration information includes: number of ports, number of CSI-RS configurations, CSI-RS configuration Number of ports, CSI-RS configuration number.
The method of claim 15 wherein

There are at least two types of CSI-RS configurations in the configuration information.
The method of claim 16 wherein

The number of ports of the first type of CSI-RS configuration of the two types is different from the number of ports of the second type of CSI-RS configuration of the two types;

Alternatively, the pilot density of the first type of CSI-RS configuration of the two types is different from the pilot density of the second type of CSI-RS configuration of the two types.
The method of claim 15 wherein

The configuration information of the CSI-RS resource further includes: aggregation mode indication information, the candidate aggregation mode has a Q class, and Q is an integer greater than 1.
The method of claim 18, wherein

At least one of the following types exists in the candidate aggregation mode type:

In the case where the CSI-RS is aggregated by two types of CSI-RS configurations, the first type of CSI-RS configuration of the two types is the same as the two types of the two types. The second type of CSI-RS configuration has a different number of ports;

In the case that the CSI-RS is aggregated by two types of CSI-RS configurations, the first type of CSI-RS configuration is different from the second type CSI-RS configuration. ;

In a case where the CSI-RS is aggregated by two types of CSI-RS configurations, the first type of CSI-RS configuration is different from the pilot density of the configuration of the second type CSI-RS;

The partial resource unit RE does not transmit the CSI-RS in the aggregation of the CSI-RS configuration.
The method of claim 19, wherein

The first type of code division multiplexing length is 4, and the second type of code division multiplexing length is 8;

The first type of pilot density is 1RE per port per RB, and the second type of pilot density is 0.5RE per port per RB.
The method of claim 15 wherein

The number of ports of the CSI-RS is divided into at least two sets, and the CSI-RS corresponding to the first set of the two sets adopts a first type of aggregation mode, and the second set of the two sets corresponds to a CSI. The RS adopts a second type of aggregation mode, wherein the first type of aggregation mode is different from the second type of aggregation mode.
The method according to claim 21, wherein the first type of aggregation mode is different from the second type of aggregation mode, including at least one of the following:

In the first type of aggregation mode, the number of ports participating in an aggregated CSI-RS configuration is only one. In the second type of aggregation mode, the number of ports participating in an aggregated CSI-RS configuration is multiple. ;

In the first type of aggregation mode, there is only one code division multiplexing mode of the CSI-RS configuration participating in the same aggregation, and in the second type of aggregation mode, participating in an aggregated CSI-RS configuration There are many ways to code division multiplexing;

In the first type of aggregation mode, the pilot density of the CSI-RS configuration participating in the same aggregation is only one type. In the second type of aggregation mode, the pilots participating in an aggregated CSI-RS configuration are involved. There are many kinds of density;

In the first type of aggregation mode, all REs of the CSI-RS configuration are transmitted with CSI-RS. In the second type of aggregation mode, some REs in the aggregation of the CSI-RS configuration do not transmit CSI- RS.
The method of claim 15 wherein

The configuration information of the CSI-RS resource further includes: RE information indicating that the CSI-RS is not transmitted.
The method of claim 15 wherein

For a CSI-RS whose number of CSI-RS configuration ports is M, a part of REs in the aggregation of CSI-RS configurations does not transmit CSI-RS, where M is an integer greater than 1.
The method of claim 15 wherein

For the CSI-RS whose CSI-RS configuration port number is M, the CSI-RS code division multiplexing mode is divided into two sets, and the corresponding CSI-RS configuration under the first set of the two sets A part of the REs does not transmit a CSI-RS, and all of the aggregated CSI-RSs of the CSI-RS configuration corresponding to the second set of the two sets transmit CSI-RS, where M is an integer greater than one.
The method of claim 25, wherein

The first set has a code division multiplexing length of 2, and the second set has a code division multiplexing length of 4.
The method according to claim 25 or 26, wherein

M is 20 or 28.
The method of claim 15 wherein

The configuration information of the CSI-RS resource further includes: pilot density indication information of the CSI-RS configuration.
A transmission device for transmitting pilot configuration information, located at a base station side, includes:

a sending module, configured to send signaling that includes configuration information of a transport channel state measurement pilot resource CSI-RS resource;

The configuration information includes: the number of ports, the number of CSI-RS configurations, the number of CSI-RS configuration ports, and the CSI-RS configuration sequence number.
A transmission device for transmitting pilot configuration information, located in the terminal, comprising:

a receiving module, configured to receive signaling sent by the base station, where the signaling is signaling that includes configuration information of a transport channel state measurement pilot CSI-RS resource resource;

The configuration information includes: the number of ports, the number of CSI-RS configurations, the number of CSI-RS configuration ports, and the CSI-RS configuration sequence number.
A transmission system for pilot configuration information, comprising: a terminal and a base station;

The terminal is configured to receive signaling sent by the base station, where the signaling is signaling that includes configuration information of a channel state measurement pilot CSI-RS resource resource;

The configuration information includes: the number of ports, the number of CSI-RS configurations, the number of CSI-RS configuration ports, and the CSI-RS configuration sequence number.