WO2015101150A1

WO2015101150A1 - A method and device for csi-rs port configuration and csi-rs transmission

Info

Publication number: WO2015101150A1
Application number: PCT/CN2014/093452
Authority: WO
Inventors: 刘建军; 郑毅; 童辉; 王飞; 侯雪颖; 胡臻平
Original assignee: 中国移动通信集团公司
Priority date: 2014-01-02
Filing date: 2014-12-10
Publication date: 2015-07-09
Also published as: CN104767592A; CN104767592B

Abstract

Disclosed are a method and a device for CSI-RS port configuration and CSI-RS transmission. The method for port configuration comprises: dividing the CSI-RSs of a number X of ports in a 3D-MIMO system into X/8 sets of CSI-RSs, with the CSI-RSs of eight ports being a set, and the CSI-RS pattern of each CSI-RS set being compatible with a specific eight-port CSI-RS pattern, wherein X＝8*n, and n is an integer greater than or equal to 2; using FDMA and/or TDMA for distributing resources among the different CSI-RS sets. In the embodiment of the present application, by means of applying necessary enhancements and expansion to present CSI-RS pattern design, CSI-RSs of more logical ports in the 3D-MIMO system are supported. Furthermore, by means of introducing new indication signaling for supporting detection of 3D-MIMO multi-port CSI-RS configurations in user equipment, the backward compatibility of network side CSI-RS configuration and CSI-RS detection by user equipment is maintained to the greatest degree.

Description

Port configuration of CSI-RS, method and device for CSI-RS transmission

Cross-reference to related applications

The present application claims priority to Chinese Patent Application No. 201410001524.2, filed on Jan. 2, 2014, in

Technical field

The present disclosure relates to the field of communications technologies, and in particular, to a port configuration method and device for a CSI-RS, and further relates to a method and device for CSI-RS transmission.

Background technique

Existing communication systems (such as LTE (Long Term Evolution) systems) use 2D-MIMO (2Dimension-Multiple Input Multiple Output) technology. The basic principle is to use horizontal planes. Two-dimensional spatial freedom to improve transmission quality and increase system capacity. The 2D-MIMO can form a narrow beam that tracks the user according to the difference in the geographic dimension of the user equipment (User Equipment), and provides services for the user while suppressing interference to other users, as shown in FIG. Schematic diagram of the application scenario of 2D-MIMO. The angles of the UE1, the UE2, and the UE4 are different from those of the base station equipment in the horizontal plane. Therefore, the base station equipment can form three narrow beams that are aligned with the UE1, UE2, and UE4 for directional transmission in the horizontal plane. However, UE2 and UE3 are in the same horizontal angle as the base station device, but UE2 and UE3 are different in the vertical dimension from the base station device. When the base station device sends the same narrow beam direction to UE2 and UE3, Will interfere with each other, which in turn affects the quality of user service.

In the future, how to further improve the spectrum efficiency of wireless communication systems, the more feasible direction is to fully explore the vertical space degrees of freedom, and extend 2D-MIMO technology to 3D-MIMO (3Dimension-Multiple Input Multiple Output) technology to fully Use the three dimensions of space to improve system performance. As shown in FIG. 2, it is a schematic diagram of an application scenario of 3D-MIMO. For the directional beam of the UE2 and the UE3, according to the difference between the angle between the UE2 and the UE3 and the base station device in the vertical direction, the vertical dimension is further differentiated, that is, the precise alignment of the user is formed in the three-dimensional space. Narrow beam and provide services to improve system spectral efficiency. 3D-MIMO technology can fully exploit the spatial 3D space freedom, further improve the system spectrum efficiency, reduce inter-cell interference, and improve the overall performance of the system. It is the future development direction of MIMO technology. In order to achieve the 3D-MIMO vertical direction freedom, the antenna needs to be improved. As shown in FIG. 3, it is a 3D antenna schematic. The 3D antenna expands the original N antenna into a matrix form of an N×M-dimensional antenna, wherein the horizontal direction has N antennas have M antennas in the vertical direction. Each of the original horizontal antennas consists of M (for example, 8-10) vertical antenna frames.

For the R10 phase of LTE-A (LTE-Advanced), the UE needs to perform CSI-RS (Channel State Information Reference Signal) measurement in the transmission mode 9, and obtain CSI (Channel State Information). , channel state information), and perform CQI (Channel Quality Indicator) feedback. The CSI-RS can support up to 8 logical ports (8 CSI-RS Ports). The CSI-RS is transmitted periodically, its period is a multiple of 5ms, and is transmitted on the full frequency band. In the subframe where the CSI-RS is located, 8 different CSI-RS Patterns can be configured, as shown in FIG. 4A and FIG. 4B, which are 8 groups of 8-port CSI-RS patterns defined in the R10 phase. The CSI-RS Pattern 1 in FIG. 4A includes five types, and the CSI-RS pattern 2 in FIG. 4B includes three types, and the time-frequency occupied by each 8-port CSI-RS pattern in a PRB (Physical Resource Block) The resource locations are different. In Figure 4A and Figure 4B, 8 REs (Resource Element) in the same format, that is, 0, 1, ..., 7 represent 8 logics in the same 8-port CSI-RS pattern. The resources occupied by the port. Different formats indicate the resources occupied by different 8-port CSI-RS patterns.

In the 3D-MIMO system, since the vertical dimension antenna array is introduced, the number of antenna elements is increased, so the number of logical ports needs to be further expanded, for example, N×M=8×8-dimensional antennas (corresponding to 64 antenna elements) At this time, it is necessary to design a CSI-RS reference signal of 64 logical ports. Obviously, the CSI-RS of the existing design can only support CSI-RS of 8 logical ports at the maximum, which is not enough to support CSI-RS of 64 logical ports, and needs to strengthen the design of the existing CSI-RS Pattern. expansion.

Summary of the invention

(1) Technical problems to be solved

The embodiments of the present disclosure provide a port configuration of a CSI-RS, a method and a device for CSI-RS transmission, to perform necessary enhancement and expansion of the design of the existing CSI-RS Pattern.

(2) Technical plan

In order to achieve the above object, an embodiment of the present disclosure provides a port configuration method of a channel state information reference signal CSI-RS, the method comprising the following steps:

The CSI-RSs of the X ports in the three-dimensional multiple-input multiple-output 3D-MIMO system are split into X/8 CSI-RS groups in groups of CSI-RSs of eight ports, and each CSI-RS group The CSI-RS pattern is compatible with a specific 8-port CSI-RS pattern; where X=8*n, n is an integer greater than or equal to 2;

Resources are allocated between different CSI-RS groups by means of frequency division multiplexing and/or time division multiplexing.

For example, the process of allocating resources by using frequency division multiplexing between different CSI-RS groups includes: distributing X/8 CSI-RS groups in X/8 physical resources in the frequency domain. Above the block pair; wherein the X/8 physical resource block pairs are distributed or distributed in a distributed manner in the frequency domain; or

When a k1 group of 8-port CSI-RSs can be transmitted in a physical resource block pair, X/8 CSI-RS groups are respectively distributed on the frequency domain with m1 physical resource block pairs; wherein, the m1 The physical resource block pair is distributed or distributed in a distributed manner in the frequency domain, the m1 being rounded up to (X/8)/k1, and the k1 being less than or equal to (X/8).

For example, the process of allocating resources in a time division multiplexing manner between different CSI-RS groups includes: distributing X/8 CSI-RS groups in X/8 subframes in the time domain. Wherein the X/8 subframes are distributed or distributed distributed in the time domain; or, when a k2 group of 8-port CSI-RSs can be transmitted within one physical resource block pair, X/8 CSI- The RS groups are respectively distributed in m2 subframes in the time domain; wherein the m2 subframes are distributed or distributed in a time domain, and the m2 is rounded up (X/8)/k2. And the k2 is less than or equal to (X/8).

For example, the process of allocating resources by using frequency division multiplexing and time division multiplexing between different CSI-RS groups includes: distributing X1 CSI-RS groups in X1 physical resources in the frequency domain. Above the block pair, and X2 CSI-RS groups are respectively distributed in X2 subframes in the time domain; wherein X1*X2=X/8, and the X1 physical resource block pairs are concentrated in the frequency domain Or distributed distribution, and the X2 subframes are distributed or distributed in a time domain; or

When a k3 group of 8-port CSI-RSs can be transmitted in one physical resource block pair, X3 CSI-RS groups are respectively distributed on the frequency domain over m3 physical resource block pairs, and X4 CSI-RSs are respectively The groups are respectively distributed in m4 subframes in the time domain; wherein the m3 physical resource block pairs are distributed or distributed in a distributed manner in a frequency domain, and the m4 subframes are distributed or distributed in a time domain. Formula, X3*X4=X/8, the m3 is rounded up to X3/k3, the m4 is rounded up to X4/k3, and the k3 is less than or equal to (X/8).

For example, the method further includes: configuring a CSI-RS pattern of the one CSI-RS group in a frequency domain when configuring a CSI-RS pattern of one CSI-RS group in the X/8 CSI-RS group The full-bandwidth transmission is performed, and the CSI-RS pattern of the one CSI-RS group is configured to be periodically transmitted in the time domain with a period T _CSI-RS and a subframe offset Δ _CSI-RS .

For example, the specific 8-port CSI-RS pattern is specifically a set of 8-port CSI-RS patterns in 8 groups of 8-port CSI-RS patterns defined by the R10 phase of the Advanced Long Term Evolution (LTE) system.

In addition, the embodiments of the present disclosure provide a method for performing CSI-RS transmission in the foregoing method, where the method includes the following steps: the network side device sends first indication signaling to the user equipment, where the first indication signaling is Carrying a packet sequence number of a CSI-RS group, and the CSI-RS group includes a CSI-RS of 8 ports; and/or, when a resource is allocated by using a frequency division multiplexing manner between different CSI-RS groups, the network The side device sends the second indication signaling to the user equipment, where the second indication signaling carries the frequency domain resource block interval and the frequency domain resource block offset of the CSI-RS group; or the network side device sends the first to the user equipment. The third indication signaling and the fourth indication signaling, where the third indication signaling carries a frequency domain resource block interval of the CSI-RS group, and the fourth indication signaling carries a frequency domain resource block bias of the CSI-RS group Transfer amount.

For example, the method further includes: when the resources are allocated by using a time division multiplexing manner between different CSI-RS groups, the network side device sends fifth indication signaling to the user equipment, where the fifth indication signaling is Carrying a time subframe period and a time subframe offset of the CSI-RS group; or, the network side device sends sixth indication signaling and seventh indication signaling to the user equipment, where the sixth indication signal The command carries a time subframe period of the CSI-RS group, where the seventh indicator signaling carries a time subframe offset of the CSI-RS group; frequency division multiplexing and time division multiplexing are used between different CSI-RS groups. When the resource is allocated in a manner, the network side device sends the eighth indication signaling to the user equipment, where the eighth indication signaling carries the frequency domain resource block interval and the frequency domain resource block offset of the CSI-RS group. And the time subframe period and the time subframe offset of the CSI-RS group; or the network side device sends the ninth indication signaling and the tenth indication signaling to the user equipment, where the ninth indication signal Order to carry the frequency domain of the CSI-RS group a source block interval and a frequency domain resource block offset, where the tenth indication signaling carries a time subframe period and a time subframe offset of the CSI-RS group; or the network side device sends the user equipment to the user equipment Transmitting the eleventh indication signaling, the twelfth indication signaling, the thirteenth indication signaling, and the fourteenth indication signaling, where the eleventh indication signaling carries a frequency domain resource block interval of the CSI-RS group, The twelfth indication signaling carries a frequency domain resource block offset of the CSI-RS group, where the thirteenth indication signaling carries a time subframe period of the CSI-RS group, and the fourteenth indication The time subframe offset of the CSI-RS group is carried in the order.

For example, the packet numbers of the CSI-RS group are 0, 1, ..., (X/8)-1, respectively; the CSI-RS group with the packet sequence number 0 corresponds to the first port of the X ports to The eighth port, the CSI-RS group with the packet sequence number 1 corresponds to the ninth port to the 16th port of the X ports, ..., and the CSI-RS group corresponding to the packet number (X/8)-1 corresponds to The (X-8)th port to the Xth port of the X ports.

For example, the method further includes: the network side device sends a fifteenth indication signaling to the user equipment, where the fifteenth indication signaling carries a CSI-RS pattern mapping parameter Number of CSI reference signals configured; and/or The network side device sends the sixteenth indication signaling to the user equipment, and the sixteenth indication signaling carries the CSI-RS pattern mapping parameter CSI reference signal Configuration.

In addition, an embodiment of the present disclosure provides a method for performing CSI-RS transmission by using the foregoing method, where the method includes the following steps: a user equipment receives first indication signaling from a network side device, and the first indication signaling And carrying the CSI-RS of the CSI-RS group, and the CSI-RS group includes the CSI-RS of the eight ports; after receiving the first indication signaling, the user equipment uses the first indication signaling. The packet sequence number of the carried CSI-RS group determines the mapping relationship between the packet sequence number and the port of the CSI-RS group; and/or, when the resources are allocated by using frequency division multiplexing between different CSI-RS groups, the user equipment Receiving the second indication signaling from the network side device, where the second indication signaling carries the frequency domain resource block interval and the frequency domain resource block offset of the CSI-RS group; or the user equipment receives the network side device a third indication signaling and a fourth indication signaling, where the third indication signaling carries a frequency domain resource block interval of a CSI-RS group, and the fourth indication signaling carries a frequency domain resource block of a CSI-RS group Offset.

For example, the method further includes: when the resources are allocated by using a time division multiplexing manner between different CSI-RS groups, the user equipment receives the fifth indication signaling from the network side device, where the fifth indication The signaling carries a time subframe period and a time subframe offset of the CSI-RS group; or the user equipment receives the sixth indication signaling and the seventh indication signaling from the network side device, where the sixth indication The signaling carries a time subframe period of the CSI-RS group, where the seventh indicator signaling carries a time subframe offset of the CSI-RS group; frequency division multiplexing and time division are used between different CSI-RS groups. When the resource is allocated in a multiplexed manner, the user equipment receives the eighth indication signaling from the network side device, where the eighth indication signaling carries the frequency domain resource block interval and the frequency domain resource block of the CSI-RS group. The offset, the time subframe period of the CSI-RS group, and the time subframe offset; or the user equipment receives the ninth indication signaling and the tenth indication signaling from the network side device, where the The N-indication signaling carries a frequency domain resource block interval and a frequency domain resource block offset of the CSI-RS group, where the tenth indication signaling carries a time subframe period and a time subframe offset of the CSI-RS group Or the user equipment receives the eleventh indication signaling from the network side device, The second indication signaling, the thirteenth indication signaling, and the fourteenth indication signaling, where the eleventh indication signaling carries a frequency domain resource block interval of the CSI-RS group, where the twelfth indication signaling carries a frequency domain resource block offset of the CSI-RS group, where the thirteenth indication signaling carries a time subframe period of the CSI-RS group, and the fourteenth indication signaling carries a time of the CSI-RS group Frame offset.

For example, the user equipment determines the mapping relationship between the packet sequence number and the port of the CSI-RS group by using the packet sequence number of the CSI-RS group carried in the first indication signaling, which specifically includes: the packet sequence numbers in the CSI-RS group respectively When it is 0, 1, ..., (X/8)-1, the user equipment determines that the CSI-RS group whose packet sequence number is 0 corresponds to the first port to the eighth port of the X ports. The CSI-RS group with the packet sequence number 1 corresponds to the ninth port to the 16th port of the X ports, ..., and the CSI-RS group corresponding to the packet sequence number (X/8)-1 corresponds to The (X-8)th port to the Xth port of the X ports.

For example, the method further includes: the user equipment receives the fifteenth indication signaling from the network side device, and the fifteenth indication signaling carries a CSI-RS pattern mapping parameter Number of CSI reference signals configured; and/or, The user equipment receives the sixteenth indication signaling from the network side device, and the sixteenth indication signaling carries a CSI-RS pattern mapping parameter CSI reference signal Configuration; the user equipment uses the CSI-RS pattern mapping parameter Number of CSI The reference signals configured and/or the CSI-RS pattern mapping parameter CSI reference signal Configuration determines the time-frequency domain of the resource particle RE mapping of the CSI-RS group in the physical resource block PRB starting point.

In addition, an embodiment of the present disclosure provides a port configuration device of a channel state information reference signal CSI-RS, where the port configuration device of the CSI-RS specifically includes: a processing module for using a three-dimensional multiple input multiple output 3D-MIMO system The CSI-RS of the X ports in the group is split into X/8 CSI-RS groups by a group of 8 ports of CSI-RS, and the CSI-RS pattern of each CSI-RS group is compatible with a specific 8-port CSI- An RS pattern; wherein, X=8*n, n is an integer greater than or equal to 2; and an allocation module, configured to allocate resources by using frequency division multiplexing and/or time division multiplexing between different CSI-RS groups.

For example, the allocation module is specifically configured to distribute X/8 CSI-RS groups on the frequency domain to X/8 physical resource block pairs respectively; wherein the X/8 physical resource block pairs are Centralized distribution or distributed distribution in the frequency domain; or, when k1 group 8-port CSI-RS can be transmitted in one physical resource block pair, X/8 CSI-RS groups are respectively distributed in m1 in the frequency domain a pair of physical resource blocks; wherein the m1 physical resource block pairs are collectively distributed or distributed in a frequency domain, wherein the m1 is rounded up (X/8)/k1, and the k1 is smaller than Equal to (X/8).

For example, the allocation module is specifically configured to distribute X/8 CSI-RS groups in X/8 subframes in the time domain; the X/8 subframes are distributed or distributed in a time domain. Or, when a k2 group of 8-port CSI-RSs can be transmitted within one physical resource block pair, X/8 CSI-RS groups are respectively distributed in m2 subframes in the time domain; the m2 sub-subs The frames are centrally distributed or distributed over the time domain, the m2 being rounded up to (X/8)/k2, and the k2 being less than or equal to (X/8).

For example, the allocation module is specifically configured to distribute X1 CSI-RS groups on the X1 physical resource block pairs in the frequency domain, and distribute X2 CSI-RS groups in the X2 sub-times in the time domain. Within the frame; wherein X1*X2=X/8, and the X1 physical resource block pairs are distributed or distributed in a distributed manner in the frequency domain, and the X2 subframes are distributed or distributed in a time domain. Or, when a k3 group of 8-port CSI-RSs can be transmitted in a physical resource block pair, X3 CSI-RS groups are respectively distributed on the frequency domain over m3 physical resource block pairs, and X4 is The CSI-RS groups are respectively distributed in m4 subframes in the time domain; wherein the m3 physical resource block pairs are concentratedly distributed or distributed in the frequency domain, and the m4 subframes are concentrated in the time domain. Or distributed distribution, X3*X4=X/8, the m3 is rounded up to X3/k3, the m4 is rounded up to X4/k3, and the k3 is less than or equal to (X/8) .

For example, the allocation module is further configured to configure a CSI-RS pattern of the one CSI-RS group when configuring a CSI-RS pattern of one of the X/8 CSI-RS groups. The full bandwidth is transmitted in the frequency domain, and the CSI-RS pattern of the one CSI-RS group is configured to be periodically transmitted in the time domain with a period T _CSI-RS and a subframe offset Δ _CSI-RS .

In addition, the embodiment of the present disclosure provides a network side device that is applied to the foregoing device to perform channel state information reference signal CSI-RS transmission, where the network side device includes:

a sending module, configured to send the first indication signaling to the user equipment, where the first indication signaling carries a packet sequence number of the CSI-RS group, and the CSI-RS group includes a CSI-RS of 8 ports; The transmitting module is configured to send the second indication signaling to the user equipment, where the second indication signaling carries the CSI- when the resource is allocated by using a frequency division multiplexing manner between the different CSI-RS groups. a frequency domain resource block interval and a frequency domain resource block offset of the RS group; or the sending module, configured to send third indication signaling and fourth indication signaling to the user equipment, where the third indication signaling is The frequency domain resource block interval of the CSI-RS group is carried in the fourth indicator signaling, and the frequency domain resource block offset of the CSI-RS group is carried in the fourth indicator signaling.

For example, the sending module is further configured to send a fifth indication signaling to the user equipment when the resource is allocated by using a time division multiplexing manner between different CSI-RS groups, where the fifth indication signaling carries CSI - a time subframe period and a time subframe offset of the RS group; or, sending the sixth indication signaling and the seventh indication signaling to the user equipment, where the sixth indication signaling carries the CSI-RS group a time subframe period, where the seventh indicator signaling carries a time subframe offset of the CSI-RS group; when resources are allocated by using frequency division multiplexing and time division multiplexing between different CSI-RS groups, The user equipment sends an eighth indication signaling, where the eighth indication signaling carries a frequency domain resource block interval and a frequency domain resource block offset of the CSI-RS group, and a time subframe period and time of the CSI-RS group. And a ninth indication signaling and a tenth indication signaling, where the ninth indication signaling carries a frequency domain resource block interval and a frequency domain resource block of the CSI-RS group Offset, the tenth indication signaling carries a time subframe period and a time subframe offset of the CSI-RS group Or transmitting the eleventh indication signaling, the twelfth indication signaling, the thirteenth indication signaling, and the fourteenth indication signaling to the user equipment, where the eleventh indication signaling carries CSI- a frequency domain resource block interval of the RS group, where the twelfth indication signaling carries a frequency domain resource block offset of the CSI-RS group, where the thirteenth indication signaling carries the CSI-RS group An inter-subframe period, where the fourteenth indication signaling carries a time subframe offset of the CSI-RS group.

For example, the packet numbers of the CSI-RS group are 0, 1, ..., (X/8)-1, respectively; wherein the CSI-RS group with the packet sequence number 0 corresponds to the first one of the X ports. From the port to the eighth port, the CSI-RS group with the packet sequence number 1 corresponds to the ninth port to the 16th port of the X ports, ..., the CSI-RS with the packet sequence number (X/8)-1 The group corresponds to the (X-8)th port to the Xth port of the X ports.

For example, the sending module is further configured to send the fifteenth indication signaling to the user equipment, where the fifteenth indication signaling carries a CSI-RS pattern mapping parameter Number of CSI reference signals configured; and/or, Sending a sixteenth indication signaling to the user equipment, where the sixteenth indication signaling carries a CSI-RS pattern mapping parameter CSI reference signal Configuration.

In addition, the embodiment of the present disclosure provides a user equipment that is applied to the foregoing device for performing CSI-RS transmission, where the user equipment includes: a receiving module, configured to receive first indication signaling from a network side device, where the An indication signaling carries a packet sequence number of a CSI-RS group, and the CSI-RS group includes a CSI-RS of 8 ports; and/or a frequency division multiplexing manner is adopted between different CSI-RS groups. When the resource is allocated, receiving the second indication signaling from the network side device, where the second indication signaling carries the frequency domain resource block interval and the frequency domain resource block offset of the CSI-RS group; or, receiving from the network side a third indication signaling and a fourth indication signaling of the device, where the third indication signaling carries a frequency domain resource block interval of the CSI-RS group, where the fourth indication signaling carries a frequency domain of the CSI-RS group a resource block offset; a determining module, configured to determine, by using a packet sequence number of the CSI-RS group carried in the first indication signaling, a packet sequence number of the CSI-RS group after receiving the first indication signaling Port mapping relationship.

For example, the receiving module is further configured to: when the resource is allocated by using a time division multiplexing manner between different CSI-RS groups, receive the fifth indication signaling from the network side device, where the fifth indication signaling carries the CSI - a time subframe period and a time subframe offset of the RS group; or, receiving the sixth indication signaling and the seventh indication signaling from the network side device, where the sixth indication signaling carries the CSI-RS group a time subframe period, where the seventh indicator signaling carries a time subframe offset of the CSI-RS group; when resources are allocated by using frequency division multiplexing and time division multiplexing between different CSI-RS groups, receiving The eighth indication signaling from the network side device, where the eighth indication signaling carries the frequency domain resource block interval and the frequency domain resource block offset of the CSI-RS group, and the time subframe period and time of the CSI-RS group a subframe offset; or, receiving ninth indication signaling and tenth indication signaling from a network side device, where the ninth indication signaling is Carrying a frequency domain resource block interval and a frequency domain resource block offset of the CSI-RS group, where the tenth indication signaling carries a time subframe period and a time subframe offset of the CSI-RS group; or, the receiving is from The eleventh indication signaling, the twelfth indication signaling, the thirteenth indication signaling, and the fourteenth indication signaling of the network side device, where the eleventh indication signaling carries the frequency domain resource of the CSI-RS group a block interval, where the twelfth indication signaling carries a frequency domain resource block offset of the CSI-RS group, where the thirteenth indication signaling carries a time subframe period of the CSI-RS group, and the tenth The four-information signaling carries the time subframe offset of the CSI-RS group.

For example, the determining module is specifically configured to determine, when the packet sequence numbers of the CSI-RS group are 0, 1, . . . , (X/8)-1, the CSI of the packet sequence number is 0. The RS group corresponds to the first port to the eighth port of the X ports, and determines that the CSI-RS group with the packet sequence number 1 corresponds to the ninth port to the 16th port of the X ports, ..., It is determined that the CSI-RS group whose packet sequence number is (X/8)-1 corresponds to the (X-8)th port to the Xth port of the X ports.

For example, the receiving module is further configured to receive the fifteenth indication signaling from the network side device, where the fifteenth indication signaling carries a CSI-RS pattern mapping parameter Number of CSI reference signals configured; and/or, Receiving a sixteenth indication signaling from the network side device, where the sixteenth indication signaling carries a CSI-RS pattern mapping parameter CSI reference signal Configuration;

For example, the determining module is further configured to determine, by using a CSI-RS pattern mapping parameter Number of CSI reference signals configured and/or a CSI-RS pattern mapping parameter CSI reference signal Configuration, a resource particle RE of the CSI-RS group in the physical resource block PRB. The starting position of the mapped time-frequency domain.

(3) Beneficial effects

At least one of the above technical solutions provided by the specific embodiments of the present disclosure has the following beneficial effects:

Compared with the prior art, the embodiments of the present disclosure have at least the following advantages: in the embodiment of the present disclosure, by designing an existing CSI-RS pattern (ie, 8-port CSI-RS in an LTE-A system) Pattern design) performs the necessary enhancements and extensions to support CSI-RS for more logical ports (such as 32 ports or 64 ports, etc.) in 3D-MIMO systems. Further, by introducing new indication signaling, the user equipment can detect the 3D-MIMO multi-port CSI-RS configuration, and can simultaneously maintain the network-side configuration CSI-RS and the user equipment to detect the CSI-RS. Capacitance.

DRAWINGS

In order to more clearly illustrate the embodiments of the present disclosure or the technical solutions in the prior art, the drawings used in the description of the embodiments will be briefly described below. It is obvious that the drawings in the following description are only the present disclosure. Some embodiments of the text may also be used to obtain other figures from these figures without departing from the art.

1 is a schematic diagram of an application scenario of 2D-MIMO in the prior art;

2 is a schematic diagram of an application scenario of 3D-MIMO in the prior art;

3 is a schematic diagram of a 3D antenna in the prior art;

4A and 4B are 8 sets of 8-port CSI-RS patterns in the prior art;

5 is a schematic flowchart of a CSI-RS port configuration method according to Embodiment 1 of the present disclosure;

6 is a schematic structural diagram of a port configuration device of a CSI-RS according to Embodiment 3 of the present disclosure;

7 is a schematic structural diagram of a network side device according to Embodiment 4 of the present disclosure;

FIG. 8 is a schematic structural diagram of a user equipment according to Embodiment 5 of the present disclosure.

detailed description

The specific embodiments of the present disclosure are further described below in conjunction with the accompanying drawings and embodiments. The following examples are only intended to illustrate the disclosure, but are not intended to limit the scope of the disclosure.

The technical solutions of the embodiments of the present disclosure will be clearly and completely described in the following description of the embodiments of the present disclosure. It is apparent that the described embodiments are part of the embodiments of the present disclosure, and not all of the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the described embodiments of the present disclosure are within the scope of the disclosure.

Unless otherwise defined, technical terms or scientific terms used herein shall be taken to mean the ordinary meaning of the ordinary skill in the art to which this disclosure belongs. The words "first", "second" and similar words used in the specification and claims of the present disclosure do not denote any order, Quantity or importance, but only to distinguish between different components. Similarly, the words "a" or "an" and the like do not denote a quantity limitation, but mean that there is at least one. The words "connected" or "connected" and the like are not limited to physical or mechanical connections, but may include electrical connections, whether direct or indirect. "Upper", "lower", "left", "right", etc. are only used to indicate the relative positional relationship, and when the absolute position of the object to be described is changed, the relative positional relationship is also changed accordingly.

The technical solutions in the present disclosure will be clearly and completely described in conjunction with the drawings in the present disclosure. It is obvious that the described embodiments are only a part of the embodiments of the present disclosure, and not all of the embodiments. All other embodiments obtained by a person of ordinary skill in the art based on the embodiments of the present disclosure without departing from the inventive scope are the scope of the invention.

Embodiment 1

For a problem in the prior art, the first embodiment of the present disclosure provides a port configuration method for a CSI-RS, where the port configuration method of the CSI-RS can be applied to a network side device (such as a base station device), as shown in FIG. 5. As shown, the CSI-RS port configuration method can include the following steps:

Step 501: The CSI-RSs of the X ports in the 3D-MIMO system are split into X/8 CSI-RS groups by CSI-RS of 8 ports, and the CSI of each CSI-RS group is The RS pattern is compatible with a specific 8-port CSI-RS pattern; where X = 8 * n, n is an integer greater than or equal to 2.

In an embodiment of the present disclosure, the specific 8-port CSI-RS pattern is specifically a set of 8-port CSI-RS patterns in 8 groups of 8-port CSI-RS patterns defined by the R10 phase of the LTE-A system. For example, the specific 8-port CSI-RS pattern is a set of 8-port CSI-RS patterns in the 8 groups of 8-port CSI-RS patterns as shown in FIGS. 4A and 4B, and the CSI-RS patterns shown in FIGS. 4A and 4B. I will not repeat them in detail.

In a preferred embodiment of the embodiments of the present disclosure, the CSI-RSs of the X ports in the 3D-MIMO system are split into X/8 CSIs by grouping the CSI-RSs of the 8 ports. In the -RS group, the packet numbers of the CSI-RS group are 0, 1, ..., (X/8)-1, respectively; wherein the CSI-RS group with the packet sequence number 0 corresponds to the first of the X ports. From port to port 8, the CSI-RS group with packet sequence number 1 corresponds to the ninth port to the 16th port of the X ports, ..., and so on, the packet sequence number is (X/8)- The CSI-RS group of 1 corresponds to the (X-8)th port to the Xth port of the X ports.

In the embodiment of the present disclosure, 8 groups of 8 ports defined by the R10 phase of the LTE-A system The CSI-RS pattern is extended to implement CSI-RS design of the 3D-MIMO system (such as 32-port or 64-port, etc.), that is, CSI of X ports (such as 32 ports/64 ports, etc.) in the 3D-MIMO system. The RS is split into several groups in groups of 8 ports, and each group of CSI-RS is compatible with the 8-port CSI-RS pattern design of LTE-A R10 (only port number mapping is different), thereby reducing the 3D-MIMO system There is an impact of the CSI-RS scheme in the specification. Taking the CSI-RS Pattern design of the X port (such as 32 ports, 64 ports, etc.) as an example, the CSI-RS is split into X/8 groups, the 0th group is mapped to the corresponding ports 0 to 7, and the first group is corresponding to the port 8~ 15 mapping, and so on, the (X/8)-1 group corresponds to the port (X-8) to (X-1) mapping.

Step 502: allocate resources by using frequency division multiplexing (FDM) and/or time division multiplexing (TDM) between different CSI-RS groups, that is, adopt frequency division multiplexing between different CSI-RS groups. The resources are allocated in a manner, or resources are allocated in a time division multiplexing manner between different CSI-RS groups, or resources are allocated in a frequency division multiplexing and a time division multiplexing manner among different CSI-RS groups.

Method 1: Allocating resources by using frequency division multiplexing between different CSI-RS groups.

Case 1: The X/8 CSI-RS groups are distributed in the frequency domain on X/8 physical resource block pairs (PRB Pairs); wherein the X/8 physical resource block pairs can be in the frequency domain. Centralized distribution (ie, continuous distribution in the frequency domain) or distributed distribution (ie, discrete distribution in the frequency domain).

Case 2: If each of the physical resource block pairs (PRB Pairs) can be configured to send multiple sets of 8-port CSI-RSs, the 3D-MIMO system can also send multiple sets of 8-port CSIs in the same physical resource block pair. RS (for example, k1 group, etc.). Based on this, when a k1 group of 8-port CSI-RSs can be transmitted in a physical resource block pair, the X/8 CSI-RS groups can be distributed on the frequency domain to the m1 physical resource block pairs respectively; M1 physical resource block pairs can be distributed in a frequency domain (ie, continuous distribution in the frequency domain) or distributed distribution (ie, discrete distribution in the frequency domain), m1 is a pair (X/8)/k1 up Rounded up, and k1 is less than or equal to (X/8). Based on the above, only the (X/8)/k1 in the frequency domain needs to be transmitted within the entire PRB Pair, which can reduce the subband interval of all X CSI-RS ports and reduce the frequency selective fading channel. The effects of detection and interference measurements.

Manner 2: Allocate resources by means of time division multiplexing between different CSI-RS groups.

Case 1: The X/8 CSI-RS groups are respectively distributed in X/8 sub-frames in the time domain; wherein, the X/8 subframes can be distributed in a centralized manner in the time domain (ie, at the time) Continuous points on the domain Cloth, mainly for FDD LTE systems) or distributed distribution (ie discrete distribution in the time domain).

Case 2: If each of the physical resource block pairs (PRB Pairs) can be configured to send multiple sets of 8-port CSI-RSs, the 3D-MIMO system can also send multiple sets of 8-port CSIs in the same physical resource block pair. RS (for example, k2 group, etc.). Based on this, when a k2 group 8-port CSI-RS can be transmitted in one physical resource block pair, X/8 CSI-RS groups can be respectively distributed in m2 subframes in the time domain; wherein, m2 subframes In the time domain, centralized distribution (ie, continuous distribution in the time domain) or distributed distribution (ie, discrete distribution in the time domain), m2 is rounded up (X/8)/k2, and k2 is less than or equal to (X/8). Based on the above, only the time interval (X/8)/k2 is taken up within the entire subframe (Subframe), which can reduce the time interval for completing all X CSI-RS port transmissions, and can reduce the time domain. The effect of channel variation on channel detection and interference measurements.

Manner 3: Allocating resources by means of frequency division multiplexing and time division multiplexing between different CSI-RS groups.

Case 1: The X1 CSI-RS groups are respectively distributed over the X1 physical resource block pairs (PRB Pairs) in the frequency domain, and the X2 CSI-RS groups are respectively distributed in the X2 subframes in the time domain (Subframe) Within; where X1*X2=X/8, and the X1 physical resource block pairs can be distributed in a frequency domain (ie, continuous distribution in the frequency domain) or distributed distribution (ie, in the frequency domain) Discrete distribution), and these X2 subframes can be distributed centrally in the time domain (ie, continuous distribution in the time domain, mainly for FDD LTE systems) or distributed distribution (ie discrete distribution in the time domain).

Specifically, one group of 8-port CSI-RSs in each PRB multiplexes m-group 8-port CSI-RSs in frequency domain FDM, and n-group 8-port CSI-RSs in time domain TDM; where X/8= m*n, the multiplexing mode can be a centralized distribution or a distributed distribution. Each group of 8-port CSI-RSs in each PRB multiplexes m 8-port CSI-RSs in frequency domain FDM, and multiplexes n-port 8-port CSI-RSs in time domain TDM; where X/8=m*n* k, the multiplexing mode may be a centralized distribution or a distributed distribution.

Case 2: If each of the physical resource block pairs (PRB Pairs) can be configured to send multiple sets of 8-port CSI-RSs, the 3D-MIMO system can also send multiple sets of 8-port CSIs in the same physical resource block pair. RS. Based on this, when k3 group 8-port CSI-RS can be transmitted in one physical resource block pair, X3 CSI-RS groups are respectively distributed on m3 physical resource block pairs in the frequency domain, and X4 CSIs are added. - RS groups are respectively distributed in m4 subframes in the time domain; wherein m3 physical resource block pairs are distributed in a frequency domain (ie, continuous distribution in the frequency domain) or distributed distribution (ie, in the frequency domain) On a discrete distribution), m4 subframes are distributed centrally in the time domain (ie continuous in the time domain) Distribution) or distributed distribution (ie discrete distribution in the time domain), X3*X4=X/8, m3 is rounded up to X3/k3, m4 is rounded up to X4/k3, and k3 is less than or equal to ( X/8).

In a preferred implementation manner of the embodiments of the present disclosure, when the CSI-RS patterns of one CSI-RS group in the X/8 CSI-RS groups are configured for the foregoing manner 1, the second mode, and the third mode, Configuring a CSI-RS pattern of a CSI-RS group to transmit in a full bandwidth in the frequency domain, and configuring a CSI-RS pattern of a CSI-RS group in a time domain with a period T _CSI-RS and a subframe offset Δ _{CsI -Rs is} sent periodically.

Specifically, in order to ensure that the LTE-A R10 accesses the 3D-MIMO system, one set of 8-port CSI-RS in the X/8 group 8-port CSI-RS adopts a complete backward compatibility design, that is, one set of 8-port CSI -RS is configured according to the 8-port CSI-RS pattern defined by the LTE-A R10 specification, and is transmitted in full bandwidth in the frequency domain. The time domain is configured with a certain period T _CSI-RS and a certain subframe offset. Δ _{CSI-RS is} periodically transmitted, which can be as shown in Table 1 (ie, periodically configured as a multiple of 5ms and different subframe offsets according to the requirements of channel measurement or interference measurement, such as 5ms, 10ms, 20ms, 40ms and 80ms, etc.). The advantage of this design is that the user equipment of LTE-A R10 can be connected to the 3D-MIMO system according to the existing protocol scheme without affecting backward compatibility. Further, other groups of newly added 8-port CSI-RSs (for example, X-port CSI-RS is split into X/8 groups, except for the first group of 8-port CSI-RSs, new (X/8) - A group of 8-port CSI-RSs can be correspondingly designed and resource mapped by the multiplexing method of the above method 1, or the second method or the third method.

Table 1: CSI-RS transmission period and subframe offset defined by the LTE-A Rel-10 specification

In summary, in the embodiments of the present disclosure, the necessary enhancement and expansion of the existing CSI-RS Pattern design (ie, the 8-port CSI-RS Pattern design in the LTE-A system) is performed. CSI-RS can support more logical ports (such as 32 ports or 64 ports, etc.) in 3D-MIMO systems.

Embodiment 2

The port configuration method of the CSI-RS proposed in the first embodiment (ie, the CSI-RS of the X ports in the 3D-MIMO system is divided into X/8 CSIs by using a CSI-RS of 8 ports as a group. -RS group, the CSI-RS pattern of each CSI-RS group is compatible with a specific 8-port CSI-RS pattern, and resources are allocated by frequency division multiplexing and/or time division multiplexing between different CSI-RS groups) Embodiment 2 of the disclosure provides a method for transmitting CSI-RS, by using a signaling message to indicate a

packet sequence number

0, 1, . . . , (X/8)-1 corresponding to each 8-port CSI-RS packet, And introducing a frequency domain resource block interval (in units of PRBs) and a frequency domain resource block offset (in units of PRBs), two parameter signaling or a parameter signaling including the above two information, supporting user equipment to 3D - Detection of MIMO multi-port CSI-RS configuration.

Based on this, in the embodiment of the present disclosure, the network side device sends the first indication signaling to the user equipment, where the first indication signaling carries the packet sequence number of the CSI-RS group, and the CSI-RS group includes the CSI of the eight ports. -RS. The CSI-RS group has a packet number of 0, 1, ..., (X/8)-1, and the CSI-RS group with a packet number of 0 corresponds to the first port of the X ports to the 8th. For each port, the CSI-RS group with the packet sequence number 1 corresponds to the ninth port to the 16th port of the X ports, ..., the CSI-RS group with the packet sequence number (X/8)-1 corresponds to X. The (X-8)th port to the Xth port in the port.

Further, the user equipment receives the first indication signaling from the network side device, where the first indication signaling carries the packet sequence number of the CSI-RS group, and the CSI-RS group includes the CSI-RS of the eight ports; the user equipment is After receiving the first indication signaling, the mapping between the packet sequence number of the CSI-RS group and the port is determined by using the packet sequence number of the CSI-RS group carried in the first indication signaling. In a specific implementation manner, the process of determining, by the user equipment, the mapping relationship between the packet sequence number and the port of the CSI-RS group by using the packet sequence number of the CSI-RS group carried in the first indication signaling, specifically: in the CSI-RS When the group number of the group is 0, 1, ..., (X/8)-1, the user equipment determines that the CSI-RS group with the packet sequence number 0 corresponds to the first port to the eighth of the X ports. Port, the CSI-RS group with the packet sequence number 1 corresponds to the ninth port to the 16th port of the X ports, ..., and so on, and the CSI-RS group with the packet sequence number (X/8)-1 Corresponding to the (X-8)th to Xth ports of the X ports.

In a specific application scenario, the packet sequence number corresponding to each 8-port CSI-RS packet is 0. 1,....,,(X/8)-1, for example, for 32-port CSI-RS split into X/8=4 groups, at least 2bit indication; for 64-port CSI-RS split into X /8=8 groups, at least 3bit indication. After receiving the first indication signaling, the user equipment acquires a port number mapping corresponding to the 8-port CSI-RS packet; where the 0th group is mapped to the corresponding port 0-7, the first group corresponds to the port 8-15, and so on. .

Since the multiplexing mode between each 8-port CSI-RS packet may use frequency division multiplexing (FDM), a certain group of 8-port CSI-RSs may not be transmitted with full bandwidth, in order to distinguish each frequency domain. Resource mapping of a set of 8-port CSI-RS, in the embodiment of the present disclosure, introducing a frequency domain resource block interval (in terms of PRB, corresponding to a frequency domain period) and a frequency domain resource block offset (in units of PRB) Two parameter signaling, or a parameter signaling containing the above two pieces of information.

Based on this, in the embodiment of the present disclosure, the network side device sends the second indication signaling to the user equipment, and the second indication signaling carries the CSI, when the resource is allocated by using the frequency division multiplexing manner between the different CSI-RS groups. a frequency domain resource block interval and a frequency domain resource block offset of the RS group; or the network side device sends the third indication signaling and the fourth indication signaling to the user equipment, where the third indication signaling carries the CSI-RS group The frequency domain resource block interval, and the fourth indication signaling carries the frequency domain resource block offset of the CSI-RS group.

Further, the user equipment receives the second indication signaling from the network side device, where the second indication signaling carries the frequency of the CSI-RS group, when the resources are allocated by using the frequency division multiplexing manner between the different CSI-RS groups. a domain resource block interval and a frequency domain resource block offset; or the user equipment receives the third indication signaling and the fourth indication signaling from the network side device, where the third indication signaling carries the frequency domain of the CSI-RS group The resource block interval, where the fourth indicator signaling carries the frequency domain resource block offset of the CSI-RS group.

To ensure backward compatibility, the I _{CSI-RS is} configured based on the CSI-RS subframe corresponding to each 8-port CSI-RS packet, and the subframe period and the subframe offset of the time domain are determined. Based on this, in the embodiment of the present disclosure, when the resources are allocated by using a time division multiplexing manner between different CSI-RS groups, the network side device sends the fifth indication signaling to the user equipment, and the fifth indication signaling carries the CSI- a time sub-frame period and a time sub-frame offset of the RS group; or, the network side device sends the sixth indication signaling and the seventh indication signaling to the user equipment, where the sixth indication signaling carries the time of the CSI-RS group The frame period, the seventh indication signaling carries the time subframe offset of the CSI-RS group. Further, when allocating resources by using a time division multiplexing manner between different CSI-RS groups, the user equipment receives the fifth indication signaling from the network side device, and the fifth indication signaling carries the time subframe of the CSI-RS group. a period and a time subframe offset; or, the user equipment receives the sixth indication signaling and the seventh indication signaling from the network side device, where the sixth indication signaling carries the time subframe period of the CSI-RS group, and the seventh The indication signaling carries the time subframe offset of the CSI-RS group.

It should be further noted that, in the embodiment of the present disclosure, when the resources are allocated by using frequency division multiplexing and time division multiplexing in different CSI-RS groups, the network side device sends the eighth indication signaling to the user equipment. The eight-indication signaling carries the frequency domain resource block interval and the frequency domain resource block offset of the CSI-RS group, the time subframe period and the time subframe offset of the CSI-RS group, or the network side device to the user equipment And transmitting the ninth indication signaling and the tenth indication signaling, where the ninth indication signaling carries the frequency domain resource block interval and the frequency domain resource block offset of the CSI-RS group, and the tenth indication signaling carries the CSI-RS group The time subframe period and the time subframe offset; or the network side device sends the eleventh indication signaling, the twelfth indication signaling, the thirteenth indication signaling, and the fourteenth indication signaling to the user equipment, The eleventh indication signaling carries the frequency domain resource block interval of the CSI-RS group, the twelfth indication signaling carries the frequency domain resource block offset of the CSI-RS group, and the thirteenth indication signaling carries the CSI- Time sub-frame period of the RS group, and the time of the CSI-RS group in the fourteenth indication signaling Offset. Further, the user equipment receives the eighth indication signaling from the network side device, and the eighth indication signaling carries the CSI-RS, when the resources are allocated by using the frequency division multiplexing and the time division multiplexing in different CSI-RS groups. The frequency domain resource block interval and the frequency domain resource block offset of the group, the time subframe period of the CSI-RS group, and the time subframe offset; or the user equipment receives the ninth indication signaling and the first from the network side device The ten-instruction signaling, the ninth indication signaling carries the frequency domain resource block interval and the frequency domain resource block offset of the CSI-RS group, and the tenth indication signaling carries the time subframe period and the time sub-group of the CSI-RS group a frame offset; or, the user equipment receives the eleventh indication signaling, the twelfth indication signaling, the thirteenth indication signaling, the fourteenth indication signaling, and the eleventh indication signaling from the network side device The frequency domain resource block interval carrying the CSI-RS group, the twelfth indication signaling carries the frequency domain resource block offset of the CSI-RS group, and the thirteenth indication signaling carries the time subframe period of the CSI-RS group The fourteenth indication signaling carries a time subframe offset of the CSI-RS group.

When the number of CSI-RS logical ports configured on the network side is less than 8 (such as 1 port, 2 ports, and 4 ports), the resources of the 8-port CSI-RS in FIG. 4A and FIG. 4B can be split into multiple groups of 1 ports and 2 Port, 4-port CSI-RS to increase the multiplexing dimension. According to the LTE-A Rel-10 specification, the network side can configure 1 port/2 port/4 port/8 port CSI-RS transmission (2 bits (bit) indicating Number of CSI reference signals configured) through high layer signaling, and The high-level signaling configuration selects which set of CSI-RS available resources to send channel state information (5 bits indicate CSI reference signal) Configuration, and the number of CSI reference signals configured and CSI reference signal Configuration together determine the starting position of the time-frequency domain of the set of CSI-RS available resources). Among them, 1/2 port CSI-RS occupies 2 REs, a total of 32 groups may be configured, 4 ports CSI-RS occupies 4 REs, a total of 16 groups may be configured, and 8-port CSI-RS occupies 8 REs, a total of 8 groups may be Configuration.

Based on this, in the embodiment of the present disclosure, the network side device sends the fifteenth indication signaling to the user equipment, where the fifteenth indication signaling carries the CSI-RS pattern mapping parameter Number of CSI reference signals configured; and/or, the network The side device sends the sixteenth indication signaling to the user equipment, and the sixteenth indication signaling carries the CSI-RS pattern mapping parameter CSI reference signal Configuration. The user equipment receives the fifteenth indication signaling from the network side device, the fifteenth indication signaling carries a CSI-RS pattern mapping parameter Number of CSI reference signals configured; and/or receives the sixteenth indication from the network side device Signaling, the sixteenth indication signaling carries a CSI-RS pattern mapping parameter CSI reference signal Configuration; the user equipment utilizes a CSI-RS pattern mapping parameter Number of CSI reference signals configured and/or a CSI-RS pattern mapping parameter CSI reference signal Configuration Determine the start time position of the time-frequency domain of the RE mapping of the CSI-RS group in the PRB.

In summary, in the embodiment of the present disclosure, 3D- can be supported by the necessary enhancement and expansion of the existing CSI-RS Pattern design (ie, the 8-port CSI-RS Pattern design in the LTE-A system). CSI-RS for more logical ports in MIMO systems. Further, by introducing new indication signaling, the user equipment can detect the 3D-MIMO multi-port CSI-RS configuration, and can maintain the backward compatibility between the network-side configuration CSI-RS and the user equipment detection CSI-RS. .

Embodiment 3

Based on the same inventive concept as the foregoing method, the port configuration device of the CSI-RS is further provided in the embodiment of the present disclosure. As shown in FIG. 6, the port configuration device of the CSI-RS specifically includes: a processing module 11, The CSI-RS for the X ports in the 3D-MIMO system is divided into X/8 CSI-RS groups by CSI-RS of 8 ports, and CSI-RS per CSI-RS group. The pattern is compatible with a specific 8-port CSI-RS pattern; wherein X=8*n, n is an integer greater than or equal to 2; the allocation module 12 is configured to use frequency division multiplexing and/or time division between different CSI-RS groups Allocate resources in a multiplexed manner.

The allocating module 12 is specifically configured to distribute X/8 CSI-RS groups on the frequency domain to X/8 physical resource block pairs respectively; wherein the X/8 physical resource block pairs are in frequency Centralized distribution or distributed distribution on the domain; or, when k1 group 8-port CSI-RS can be transmitted in one physical resource block pair, X/8 CSI-RS groups are respectively distributed in m1 physics in the frequency domain Above the resource block pair; wherein the m1 physical resource block pairs are collectively distributed or distributedly distributed in the frequency domain, the m1 is rounded up (X/8)/k1, and the k1 is less than or equal to (X/8).

The allocation module 12 is specifically configured to distribute X/8 CSI-RS groups in X/8 subframes in the time domain; the X/8 subframes are distributed or distributed in a time domain. Or; when a k2 group of 8-port CSI-RSs can be transmitted in a physical resource block pair, X/8 CSI-RS groups are respectively distributed in m2 subframes in the time domain; the m2 subframes In a time domain, a centralized distribution or a distributed distribution, the m2 is rounded up to (X/8)/k2, and the k2 is less than or equal to (X/8).

The allocating module 12 is configured to distribute X1 CSI-RS groups on the X1 physical resource block pairs in the frequency domain, and distribute the X2 CSI-RS groups in the X2 subframes in the time domain. Wherein X1*X2=X/8, and the X1 physical resource block pairs are distributed or distributed in a distributed manner in a frequency domain, and the X2 subframes are distributed or distributed in a time domain. Or, when the k3 group of 8-port CSI-RSs can be sent in a physical resource block pair, the allocation module 12 is specifically configured to distribute X3 CSI-RS groups in the frequency domain to m3 physical resources. On the block pair, and the X4 CSI-RS groups are respectively distributed in the time domain over the m4 subframes; wherein the m3 physical resource block pairs are distributed or distributed in a distributed manner in the frequency domain, M4 subframes are distributed or distributed in a time domain, X3*X4=X/8, the m3 is rounded up to X3/k3, and the m4 is rounded up to X4/k3, and the K3 is less than or equal to (X/8).

The allocating module 12 is further configured to configure a CSI-RS pattern of the one CSI-RS group in a frequency when configuring a CSI-RS pattern of one CSI-RS group in the X/8 CSI-RS group The full bandwidth is transmitted on the domain, and the CSI-RS pattern of the one CSI-RS group is configured to be periodically transmitted in the time domain with a period T _CSI-RS and a subframe offset Δ _CSI-RS .

The specific 8-port CSI-RS pattern is specifically a set of 8-port CSI-RS patterns in 8 groups of 8-port CSI-RS patterns defined by the R10 phase of the Advanced Long Term Evolution (LTE) system.

The modules of the device of the present disclosure may be integrated into one or may be deployed separately. The above modules can be combined into one module, or can be further split into multiple sub-modules.

Embodiment 4

Based on the same inventive concept as the above method, the embodiment of the present disclosure further provides a network side device that is applied to the device shown in the third embodiment to perform channel state information reference signal CSI-RS transmission, as shown in FIG. 7 . The network side device includes: a sending module 21, configured to send first indication signaling to the user equipment, where the first indication signaling carries a packet sequence number of the CSI-RS group, and the CSI-RS group includes eight The CSI-RS of the port; and/or, when the resource is allocated by using a frequency division multiplexing manner between the different CSI-RS groups, sending the second indication signaling to the user equipment, where the second indication signaling carries the CSI- a frequency domain resource block interval and a frequency domain resource block offset of the RS group; or, the third indication signaling and the fourth indication signaling are sent to the user equipment, where the third indication signaling carries the frequency of the CSI-RS group The domain resource block interval, where the fourth indicator signaling carries a frequency domain resource block offset of the CSI-RS group.

The sending module 21 is further configured to send a fifth indication signaling to the user equipment when the resources are allocated by using a time division multiplexing manner between different CSI-RS groups, where the fifth indication signaling carries CSI- a time subframe period and a time subframe offset of the RS group; or, sending the sixth indication signaling and the seventh indication signaling to the user equipment, where the sixth indication signaling carries the CSI-RS group a sub-frame period, where the seventh indication signaling carries a time subframe offset of the CSI-RS group; when the resources are allocated by using frequency division multiplexing and time division multiplexing between different CSI-RS groups, The user equipment sends the eighth indication signaling, where the eighth indication signaling carries the frequency domain resource block interval and the frequency domain resource block offset of the CSI-RS group, and the time subframe period and time of the CSI-RS group. And the ninth indication signaling and the tenth indication signaling are sent to the user equipment, where the ninth indication signaling carries a frequency domain resource block interval and a frequency domain resource block offset of the CSI-RS group a shift, the tenth indication signaling carries a time subframe period and a time subframe offset of the CSI-RS group Or sending the eleventh indication signaling, the twelfth indication signaling, the thirteenth indication signaling, and the fourteenth indication signaling to the user equipment, where the eleventh indication signaling carries the CSI-RS group a frequency domain resource block interval, where the twelfth indication signaling carries a frequency domain resource block offset of the CSI-RS group, where the thirteenth indication signaling carries a time subframe period of the CSI-RS group, The fourteenth indication signaling carries a time subframe offset of the CSI-RS group.

In the embodiment of the present disclosure, the packet numbers of the CSI-RS group are 0, 1, . . . , (X/8)-1, respectively; wherein the CSI-RS group with the packet sequence number 0 corresponds to X. The first port to the eighth port of the port, the CSI-RS group with the packet sequence number 1 corresponds to the ninth port to the 16th port of the X ports, ..., the packet sequence number is The CSI-RS group of (X/8)-1 corresponds to the first of the X ports. (X-8) ports to the Xth port.

The sending module 21 is further configured to send the fifteenth indication signaling to the user equipment, where the fifteenth indication signaling carries a CSI-RS pattern mapping parameter Number of CSI reference signals configured; and/or The user equipment sends a sixteenth indication signaling, where the sixteenth indication signaling carries a CSI-RS pattern mapping parameter CSI reference signal Configuration.

Embodiment 5

Based on the same inventive concept as the foregoing method, the embodiment of the present disclosure further provides a user equipment that is applied to the device shown in the third embodiment to perform CSI-RS transmission. As shown in FIG. 8, the user equipment specifically includes: The receiving module 31 is configured to receive the first indication signaling from the network side device, where the first indication signaling carries the packet sequence number of the CSI-RS group, and the CSI-RS group includes the CSI of the eight ports. And receiving the second indication signaling from the network side device, where the second indication signaling carries the CSI-RS group, when the resource is allocated by using a frequency division multiplexing manner between the different CSI-RS groups. Frequency domain resource block interval and frequency domain resource block offset; or receiving third indication signaling and fourth indication signaling from the network side device, where the third indication signaling carries the frequency of the CSI-RS group a domain resource block interval, where the fourth indicator signaling carries a frequency domain resource block offset of the CSI-RS group, and the determining module 32 is configured to use the first indication signal after receiving the first indication signaling The packet sequence number of the CSI-RS group carried in the command determines the packet sequence number of the CSI-RS group and Port mapping relationship.

The receiving module 31 is further configured to: when the resource is allocated by using a time division multiplexing manner between different CSI-RS groups, receive the fifth indication signaling from the network side device, where the fifth indication signaling carries the CSI- a time sub-frame period and a time sub-frame offset of the RS group; or, receiving the sixth indication signaling and the seventh indication signaling from the network side device, where the sixth indication signaling carries the CSI-RS group a subframe period, where the seventh indicator signaling carries a time subframe offset of the CSI-RS group; when resources are allocated by using frequency division multiplexing and time division multiplexing between different CSI-RS groups, the receiving is from The eighth indication signaling of the network side device, where the eighth indication signaling carries the frequency domain resource block interval and the frequency domain resource block offset of the CSI-RS group, and the time subframe period and time of the CSI-RS group a frame offset; or, receiving the ninth indication signaling and the tenth indication signaling from the network side device, where the ninth indication signaling carries the frequency domain resource block interval and the frequency domain resource block offset of the CSI-RS group Shift, the tenth indication signaling Carrying a time subframe period and a time subframe offset of the CSI-RS group; or receiving the eleventh indication signaling, the twelfth indication signaling, the thirteenth indication signaling, and the fourteenth from the network side device Instructing signaling, the eleventh indication signaling carries a frequency domain resource block interval of the CSI-RS group, and the twelfth indication signaling carries a frequency domain resource block offset of the CSI-RS group, The thirteenth indication signaling carries a time subframe period of the CSI-RS group, and the fourteenth indication signaling carries a time subframe offset of the CSI-RS group.

The determining module 32 is specifically configured to determine, when the packet sequence numbers of the CSI-RS group are 0, 1, . . . , (X/8)-1, the CSI-RS whose packet sequence number is 0. The group corresponds to the first port to the eighth port of the X ports, and determines that the CSI-RS group with the packet sequence number 1 corresponds to the ninth port to the 16th port of the X ports, ..., determining The CSI-RS group whose packet number is (X/8)-1 corresponds to the (X-8)th port to the Xth port of the X ports.

The receiving module 31 is further configured to receive the fifteenth indication signaling from the network side device, where the fifteenth indication signaling carries a CSI-RS pattern mapping parameter Number of CSI reference signals configured; and/or, receives The 16th indication signaling from the network side device, where the 16th indication signaling carries a CSI-RS pattern mapping parameter CSI reference signal Configuration; the determining module 32 is further configured to use the CSI-RS pattern mapping The parameter Number of CSI reference signals configured and/or CSI-RS pattern mapping parameter CSI reference signal Configuration determines the time-frequency domain start position of the resource particle RE mapping of the CSI-RS group in the physical resource block PRB.

Through the description of the above embodiments, those skilled in the art can clearly understand that the present disclosure can be implemented by means of software plus a necessary general hardware platform, and of course, can also be through hardware, but in many cases, the former is better. Implementation. Based on such understanding, portions of the technical solution of the present disclosure that contribute substantially or to the prior art may be embodied in the form of a software product stored in a storage medium, including a number of instructions for making A computer device (which may be a personal computer, server, or network device, etc.) performs the methods described in various embodiments of the present disclosure.

A person skilled in the art can understand that the drawings are only a schematic diagram of a preferred embodiment, and the modules or processes in the drawings are not necessarily required to implement the present disclosure.

Those skilled in the art can understand that the modules in the apparatus in the embodiments may be distributed in the apparatus of the embodiment according to the description of the embodiments, or the corresponding changes may be located in one or more apparatuses different from the embodiment. The modules of the above embodiments may be combined into one module, or may be further split into multiple sub-modules.

The above-mentioned serial number of the present disclosure is merely for the description, and does not represent the advantages and disadvantages of the embodiment.

The above disclosure is only a few specific embodiments of the present disclosure, but the present disclosure is not limited thereto, and any changes that can be made by those skilled in the art should fall within the protection scope of the present invention.

Claims

A port configuration method for a channel state information reference signal (CSI-RS), the method comprising the following steps:

The CSI-RS of the X ports in the 3D-MIMO system is divided into X/8 CSI-RS groups by CSI-RS of 8 ports, and each CSI- The CSI-RS pattern of the RS group is compatible with a specific 8-port CSI-RS pattern; where X=8*n, n is an integer greater than or equal to 2;

Resources are allocated between different CSI-RS groups by means of frequency division multiplexing and/or time division multiplexing.
The method of claim 1, wherein the process of allocating resources by means of frequency division multiplexing between different CSI-RS groups comprises:

The X/8 CSI-RS groups are respectively distributed on the frequency domain over the X/8 physical resource block pairs; wherein the X/8 physical resource block pairs are concentrated or distributed in the frequency domain. ;or

When a k1 group of 8-port CSI-RSs can be transmitted in a physical resource block pair, X/8 CSI-RS groups are respectively distributed on the frequency domain with m1 physical resource block pairs; wherein, the m1 The physical resource block pair is distributed or distributed in a distributed manner in the frequency domain, the m1 being rounded up to (X/8)/k1, and the k1 being less than or equal to (X/8).
The method of claim 1, wherein the process of allocating resources by means of time division multiplexing between different CSI-RS groups comprises:

Locating X/8 CSI-RS groups in X/8 subframes in the time domain; wherein the X/8 subframes are distributed or distributed in a time domain; or

When a k2 group 8-port CSI-RS can be transmitted in a physical resource block pair, X/8 CSI-RS groups are respectively distributed in m2 subframes in the time domain; wherein the m2 subframes are in time A centralized distribution or a distributed distribution on the domain, the m2 being rounded up to (X/8)/k2, and the k2 being less than or equal to (X/8).
The method of claim 1, wherein the process of allocating resources by means of frequency division multiplexing and time division multiplexing between different CSI-RS groups comprises:

The X1 CSI-RS groups are respectively distributed on the X1 physical resource block pairs in the frequency domain, and the X2 CSI-RS groups are respectively distributed in the X2 subframes in the time domain; wherein, X1*X2= X/8, and the X1 physical resource block pairs are distributed or distributed in a distributed manner in the frequency domain, and the X2 Subframes are distributed or distributed in a time domain; or

When a k3 group 8-port CSI-RS can be transmitted in a physical resource block pair, X3 CSI-RS groups are respectively distributed on the frequency domain over m3 physical resource block pairs, and X4 CSI-RS groups are Distributed in m4 subframes in the time domain; wherein the m3 physical resource block pairs are distributed or distributed in a distributed manner in a frequency domain, and the m4 subframes are distributed or distributed in a time domain. Distribution, X3*X4=X/8, the m3 is rounded up to X3/k3, the m4 is rounded up to X4/k3, and the k3 is less than or equal to (X/8).
The method of any of claims 2-4, further comprising:

When the CSI-RS pattern of one CSI-RS group in the X/8 CSI-RS group is configured, the CSI-RS pattern of the one CSI-RS group is configured to be transmitted in the entire bandwidth in the frequency domain, and configured. The CSI-RS pattern of one CSI-RS group is periodically transmitted in the time domain with a period T CSI-RS and a subframe offset Δ CSI-RS .
The method according to any one of claims 1 to 4, wherein the specific 8-port CSI-RS pattern is specifically: 8 groups of 8-port CSI-RS patterns defined in the R10 phase of the Advanced Long Term Evolution (LTE) system. A set of 8-port CSI-RS patterns.
A method for applying a channel state information reference signal CSI-RS transmission according to the method of any one of claims 1 to 6, the method comprising the steps of:

The network side device sends the first indication signaling to the user equipment, where the first indication signaling carries the packet sequence number of the CSI-RS group, and the CSI-RS group includes the CSI-RS of 8 ports; and/or

The network side device sends the second indication signaling to the user equipment, where the second indication signaling carries the frequency domain resource block of the CSI-RS group, when the resource is allocated by using the frequency division multiplexing manner between the different CSI-RS groups. The interval and the frequency domain resource block offset; or the network side device sends the third indication signaling and the fourth indication signaling to the user equipment, where the third indication signaling carries the frequency domain resource block interval of the CSI-RS group The fourth indication signaling carries a frequency domain resource block offset of the CSI-RS group.
The method of claim 7 further comprising:

When the resources are allocated by using a time division multiplexing manner between different CSI-RS groups, the network side device sends a fifth indication signaling to the user equipment, where the fifth indication signaling carries the CSI-RS group. a subframe period and a time subframe offset; or the network side device sends the sixth indication signaling and the seventh indication signaling to the user equipment, where the sixth indication signaling carries the CSI-RS group Time a frame period, where the seventh indicator signaling carries a time subframe offset of the CSI-RS group;

When the resources are allocated by using the frequency division multiplexing and the time division multiplexing in different CSI-RS groups, the network side device sends the eighth indication signaling to the user equipment, where the eighth indication signaling carries the CSI. a frequency domain resource block interval and a frequency domain resource block offset of the RS group, a time subframe period of the CSI-RS group, and a time subframe offset; or the network side device sends the ninth to the user equipment Instructing signaling and the tenth indication signaling, where the ninth indication signaling carries a frequency domain resource block interval and a frequency domain resource block offset of the CSI-RS group, where the tenth indication signaling carries the CSI-RS a time sub-frame period and a time sub-frame offset of the group; or, the network side device sends the eleventh indication signaling, the twelfth indication signaling, the thirteenth indication signaling, and the tenth to the user equipment The fourth indication signaling, where the eleventh indication signaling carries a frequency domain resource block interval of the CSI-RS group, where the twelfth indication signaling carries a frequency domain resource block offset of the CSI-RS group. The thirteenth indication signaling carries a time subframe period of the CSI-RS group, where the fourteenth indication signaling carries CSI- The time subframe offset of the RS group.
The method according to claim 7, wherein the packet numbers of the CSI-RS group are 0, 1, ..., (X/8)-1, respectively; wherein the CSI of the packet sequence number is 0. The RS group corresponds to the first port to the eighth port of the X ports, and the CSI-RS group with the packet sequence number 1 corresponds to the ninth port to the 16th port of the X ports, ... The CSI-RS group whose packet number is (X/8)-1 corresponds to the (X-8)th port to the Xth port of the X ports.
The method of claim 7 further comprising:

The network side device sends a fifteenth indication signaling to the user equipment, where the fifteenth indication signaling carries a CSI-RS pattern mapping parameter Number of CSI reference signals configured; and/or the network side device Sending a sixteenth indication signaling to the user equipment, where the sixteenth indication signaling carries a CSI-RS pattern mapping parameter CSI reference signal Configuration.
A method for applying a channel state information reference signal CSI-RS transmission according to the method of any one of claims 1 to 6, the method comprising the steps of:

The user equipment receives the first indication signaling from the network side device, where the first indication signaling carries the packet sequence number of the CSI-RS group, and the CSI-RS group includes the CSI-RS of 8 ports; After receiving the first indication signaling, the user equipment determines, by using a packet sequence number of the CSI-RS group carried in the first indication signaling, a mapping relationship between a packet sequence number and a port of the CSI-RS group; and/or

When the resources are allocated by using frequency division multiplexing between different CSI-RS groups, the user equipment receives The second indication signaling from the network side device, where the second indication signaling carries a frequency domain resource block interval and a frequency domain resource block offset of the CSI-RS group; or, the user equipment receives the first from the network side device The third indication signaling and the fourth indication signaling, where the third indication signaling carries a frequency domain resource block interval of the CSI-RS group, and the fourth indication signaling carries a frequency domain resource block bias of the CSI-RS group Transfer amount.
The method of claim 11 further comprising:

The user equipment receives the fifth indication signaling from the network side device, where the fifth indication signaling carries the CSI-RS group, when the resource is allocated by using a time division multiplexing manner between different CSI-RS groups. a time subframe period and a time subframe offset; or the user equipment receives the sixth indication signaling and the seventh indication signaling from the network side device, where the sixth indication signaling carries the CSI-RS a time sub-frame period of the group, where the seventh indication signaling carries a time subframe offset of the CSI-RS group;

When the resources are allocated by using the frequency division multiplexing and the time division multiplexing in different CSI-RS groups, the user equipment receives the eighth indication signaling from the network side device, where the eighth indication signaling carries a frequency domain resource block interval and a frequency domain resource block offset of the CSI-RS group, a time subframe period of the CSI-RS group, and a time subframe offset; or the user equipment receives the network side device And a ninth indication signaling, where the ninth indication signaling carries a frequency domain resource block interval and a frequency domain resource block offset of the CSI-RS group, where the tenth indication signaling carries CSI a time subframe period and a time subframe offset of the RS group; or, the user equipment receives the eleventh indication signaling, the twelfth indication signaling, and the thirteenth indication signaling from the network side device And a fourteenth indication signaling, where the eleventh indication signaling carries a frequency domain resource block interval of the CSI-RS group, where the twelfth indication signaling carries a frequency domain resource block offset of the CSI-RS group And the thirteenth indication signaling carries a time subframe period of the CSI-RS group, where the fourteenth indication In order to carry temporal sub-group CSI-RS frame offset.
The method of claim 11, wherein the user equipment determines, by using a packet sequence number of the CSI-RS group carried in the first indication signaling, a mapping relationship between a packet sequence number and a port of the CSI-RS group, specifically The user equipment determines that the CSI-RS group corresponding to the packet sequence number is 0 when the packet sequence numbers of the CSI-RS group are 0, 1, . . . , (X/8)-1, respectively. The first port to the eighth port of the port, the CSI-RS group with the packet sequence number 1 corresponds to the ninth port to the 16th port of the X ports, ..., the packet sequence number is The CSI-RS group of (X/8)-1 corresponds to the (X-8)th port to the Xth port of the X ports.
The method of claim 11 further comprising:

The user equipment receives the fifteenth indication signaling from the network side device, where the fifteenth indication signaling carries a CSI-RS pattern mapping parameter Number of CSI reference signals configured; and/or, the user equipment receives the The sixteenth indication signaling of the network side device, where the sixteenth indication signaling carries a CSI-RS pattern mapping parameter CSI reference signal Configuration;

Determining, by the user equipment, a time-frequency domain of the resource particle RE mapping in the physical resource block PRB by using a CSI-RS pattern mapping parameter and a CSI-reference mapping parameter CSI reference signal configuration Starting position.
A port configuration device of a channel state information reference signal CSI-RS, where the port configuration device of the CSI-RS specifically includes:

The processing module is configured to split the CSI-RSs of the X ports in the three-dimensional multi-input and multi-output 3D-MIMO system into a set of CSI-RSs of eight ports, and split into X/8 CSI-RS groups, each The CSI-RS pattern of the CSI-RS group is compatible with a specific 8-port CSI-RS pattern; where X=8*n, n is an integer greater than or equal to 2;

And an allocation module, configured to allocate resources by using frequency division multiplexing and/or time division multiplexing between different CSI-RS groups.
The apparatus of claim 15 wherein

The allocation module is specifically configured to distribute X/8 CSI-RS groups on the frequency domain to X/8 physical resource block pairs respectively; wherein the X/8 physical resource block pairs are in the frequency domain Upper centralized distribution or distributed distribution; or, when k1 group 8-port CSI-RS can be transmitted in one physical resource block pair, X/8 CSI-RS groups are respectively distributed in m1 physical resources in the frequency domain Above the block pair; wherein the m1 physical resource block pairs are collectively distributed or distributedly distributed in a frequency domain, where m1 is rounded up (X/8)/k1, and the k1 is less than or equal to ( X/8).
The apparatus of claim 15 wherein

The allocation module is specifically configured to distribute X/8 CSI-RS groups in X/8 subframes in the time domain; the X/8 subframes are distributed in a time domain or distributed in a distributed manner. Or, when a k2 group 8-port CSI-RS can be transmitted in a physical resource block pair, X/8 CSI-RS groups are respectively distributed in m2 subframes in the time domain; the m2 subframes are in A centralized distribution or a distributed distribution in the time domain, the m2 being rounded up to (X/8)/k2, and the k2 being less than or equal to (X/8).
The apparatus of claim 15 wherein

The allocation module is specifically configured to distribute X1 CSI-RS groups on the X1 physical resource block pairs in the frequency domain, and distribute the X2 CSI-RS groups in the X2 subframes in the time domain. Wherein X1*X2=X/8, and the X1 physical resource block pairs are distributed or distributed in a distributed manner in a frequency domain, and the X2 subframes are distributed or distributed in a time domain. Or, when k3 group 8-port CSI-RS can be transmitted in one physical resource block pair, X3 CSI-RS groups are respectively distributed on m3 physical resource block pairs in the frequency domain, and X4 CSIs are respectively - The RS groups are respectively distributed in m4 subframes in the time domain; wherein the m3 physical resource block pairs are distributed or distributed in a distributed manner in the frequency domain, and the m4 subframes are distributed in a time domain. Or distributed distribution, X3*X4=X/8, the m3 is rounded up to X3/k3, the m4 is rounded up to X4/k3, and the k3 is less than or equal to (X/8).
A device according to any of claims 16-18, wherein

The allocating module is further configured to configure a CSI-RS pattern of the one CSI-RS group in a frequency domain when configuring a CSI-RS pattern of one CSI-RS group in the X/8 CSI-RS group The full-bandwidth transmission is performed, and the CSI-RS pattern of the one CSI-RS group is configured to be periodically transmitted in the time domain with a period T CSI-RS and a subframe offset Δ CSI-RS .
The device according to any one of claims 15 to 18, wherein the specific 8-port CSI-RS pattern is specifically: 8 groups of 8-port CSI-RS patterns defined in the R10 phase of the Advanced Long Term Evolution LTE-A system A set of 8-port CSI-RS patterns.
A network side device that is applied to a device according to any one of claims 15 to 20 for performing channel state information reference signal CSI-RS transmission, where the network side device includes:

a sending module, configured to send the first indication signaling to the user equipment, where the first indication signaling carries a packet sequence number of the CSI-RS group, and the CSI-RS group includes a CSI-RS of 8 ports; The transmitting module is configured to send the second indication signaling to the user equipment, where the second indication signaling carries the CSI- when the resource is allocated by using a frequency division multiplexing manner between the different CSI-RS groups. a frequency domain resource block interval and a frequency domain resource block offset of the RS group; or the sending module, configured to send third indication signaling and fourth indication signaling to the user equipment, where the third indication signaling is The frequency domain resource block interval of the CSI-RS group is carried in the fourth indicator signaling, and the frequency domain resource block offset of the CSI-RS group is carried in the fourth indicator signaling.
The network side device according to claim 21, wherein

The sending module is further configured to allocate resources by using time division multiplexing between different CSI-RS groups. And sending, by the user equipment, fifth indication signaling, where the fifth indication signaling carries a time subframe period and a time subframe offset of the CSI-RS group; or, sending the first to the user equipment a sixth indication signaling and a seventh indication signaling, where the sixth indication signaling carries a time subframe period of the CSI-RS group, and the seventh indication signaling carries a time subframe offset of the CSI-RS group When the resources are allocated by using the frequency division multiplexing and the time division multiplexing in different CSI-RS groups, the eighth indication signaling is sent to the user equipment, where the eighth indication signaling carries the CSI-RS group. a frequency domain resource block interval and a frequency domain resource block offset, a time subframe period of the CSI-RS group, and a time subframe offset; or sending the ninth indication signaling and the tenth indication signaling to the user equipment And the ninth indication signaling carries a frequency domain resource block interval and a frequency domain resource block offset of the CSI-RS group, where the tenth indication signaling carries a time subframe period and a time sub of the CSI-RS group a frame offset; or, sending the eleventh indication signaling, the twelfth indication signaling, and the tenth to the user equipment Instructing signaling, the fourteenth indication signaling, the eleventh indication signaling carries a frequency domain resource block interval of the CSI-RS group, and the twelfth indication signaling carries the frequency domain resource of the CSI-RS group a block offset, where the thirteenth indication signaling carries a time subframe period of the CSI-RS group, and the fourteenth indication signaling carries a time subframe offset of the CSI-RS group.
The network side device according to claim 21, wherein the packet numbers of the CSI-RS group are 0, 1, ..., (X/8)-1, respectively; wherein the packet sequence number is 0. The CSI-RS group corresponds to the first port to the eighth port of the X ports, and the CSI-RS group with the packet sequence number 1 corresponds to the ninth port to the 16th port of the X ports, ... The CSI-RS group whose packet sequence number is (X/8)-1 corresponds to the (X-8)th port to the Xth port of the X ports.
The network side device according to claim 21, wherein

The sending module is further configured to send the fifteenth indication signaling to the user equipment, where the fifteenth indication signaling carries a CSI-RS pattern mapping parameter Number of CSI reference signals configured; and/or The user equipment sends a sixteenth indication signaling, where the sixteenth indication signaling carries a CSI-RS pattern mapping parameter CSI reference signal Configuration.
A user equipment, which is applied to a device according to any one of claims 15 to 20, for performing channel state information reference signal CSI-RS transmission, wherein the user equipment specifically includes:

a receiving module, configured to receive first indication signaling from a network side device, where the first indication signaling carries a packet sequence number of a CSI-RS group, and the CSI-RS group includes a CSI-RS of 8 ports And/or, when resources are allocated by frequency division multiplexing between different CSI-RS groups, receiving from the network a second indication signaling of the network side device, where the second indication signaling carries a frequency domain resource block interval and a frequency domain resource block offset of the CSI-RS group; or receives a third indication signal from the network side device And the fourth indication signaling, where the third indication signaling carries a frequency domain resource block interval of the CSI-RS group, where the fourth indication signaling carries a frequency domain resource block offset of the CSI-RS group;

And a determining module, configured to determine, by using a packet sequence number of the CSI-RS group carried in the first indication signaling, a mapping relationship between a packet sequence number and a port of the CSI-RS group, after receiving the first indication signaling.
The user equipment according to claim 25, wherein

The receiving module is further configured to receive a fifth indication signaling from a network side device, where the fifth indication signaling carries a CSI-RS, when a resource is allocated by using a time division multiplexing manner between different CSI-RS groups. a time sub-frame period and a time sub-frame offset of the group; or, receiving the sixth indication signaling and the seventh indication signaling from the network side device, where the sixth indication signaling carries the time of the CSI-RS group a frame period, where the seventh indicator signaling carries a time subframe offset of the CSI-RS group; when resources are allocated by using frequency division multiplexing and time division multiplexing between different CSI-RS groups, the receiving from the network The eighth indication signaling of the side device, where the eighth indication signaling carries the frequency domain resource block interval and the frequency domain resource block offset of the CSI-RS group, the time subframe period of the CSI-RS group, and the time subframe Offset; or, receiving the ninth indication signaling and the tenth indication signaling from the network side device, where the ninth indication signaling carries the frequency domain resource block interval and the frequency domain resource block offset of the CSI-RS group The time sub-frame period and time subframe of the CSI-RS group carried in the tenth indication signaling Or shifting; or, receiving the eleventh indication signaling, the twelfth indication signaling, the thirteenth indication signaling, and the fourteenth indication signaling from the network side device, where the eleventh indication signaling carries the CSI - a frequency domain resource block interval of the RS group, where the twelfth indication signaling carries a frequency domain resource block offset of the CSI-RS group, and the thirteenth indication signaling carries a time of the CSI-RS group a frame period, where the fourteenth indication signaling carries a time subframe offset of the CSI-RS group.
The user equipment according to claim 25, wherein

The determining module is specifically configured to determine, when the packet sequence numbers of the CSI-RS group are 0, 1, . . . , (X/8)-1, the CSI-RS group with the packet sequence number 0 Corresponding to the first port to the eighth port of the X ports, determining that the CSI-RS group with the packet sequence number 1 corresponds to the ninth port to the 16th port of the X ports, ..., determining The CSI-RS group whose packet number is (X/8)-1 corresponds to the (X-8)th port to the Xth port of the X ports.
The user equipment according to claim 25, wherein

The receiving module is further configured to receive the fifteenth indication signaling from the network side device, where the fifteenth indication signaling carries a CSI-RS pattern mapping parameter Number of CSI reference signals configured; and/or, the receiving is from The 16th indication signaling of the network side device, where the 16th indication signaling carries a CSI-RS pattern mapping parameter CSI reference signal Configuration;

The determining module is further configured to determine, by using a CSI-RS pattern mapping parameter Number of CSI reference signals configured and/or a CSI-RS pattern mapping parameter CSI reference signal Configuration, a resource particle RE mapping of the CSI-RS group in the physical resource block PRB The starting position of the time-frequency domain.