CN108781144B

CN108781144B - Resource allocation method, resource receiving method, device, base station and user equipment

Info

Publication number: CN108781144B
Application number: CN201680083626.0A
Authority: CN
Inventors: 刘建琴
Original assignee: Huawei Technologies Co Ltd
Current assignee: Huawei Technologies Co Ltd
Priority date: 2016-03-31
Filing date: 2016-03-31
Publication date: 2020-11-17
Anticipated expiration: 2036-03-31
Also published as: WO2017166250A1; CN108781144A

Abstract

The invention relates to a resource allocation method, a resource receiving device, a base station and user equipment. The method comprises the following steps: a base station sends a configuration signaling of a reference signal to user equipment, wherein the number of ports of the reference signal is N, the reference signal of the N port corresponds to reference signals of K (K > -1) M ports, 1< -M < N, and N is a positive integer greater than or equal to 1; the configuration signaling comprises configuration information of reference signals of K M ports corresponding to the reference signal of the N port and corresponding relation indication information between the reference signal of the N port and the reference signals of the K M ports; and the base station transmits the reference signal of the N port to the user equipment according to the configuration signaling.

Description

Resource allocation method, resource receiving method, device, base station and user equipment

Technical Field

The present invention relates to the field of communications technologies, and in particular, to a resource allocation method, a resource receiving method, a device, a base station, and a user equipment.

Background

At present, different types of reference signals are generally used in a communication system to measure different service data, wherein one type of reference signal is used for estimating a channel and can perform coherent demodulation on a received signal containing control information or data; the other type implements scheduling for User Equipment (UE) with reference to measurement for channel state or channel quality.

In a downlink system of Long Term Evolution (LTE) version 10 (Release 10, R10) established by the 3rd Generation Partnership Project (3 GPP), a Reference Signal for coherent Demodulation is called a Demodulation Reference Signal (DMRS); the Reference Signal used for Channel State Information measurement is called a Channel State Information Reference Signal (CSI-RS). In addition, the Reference Signal also includes a Cell-specific Reference Signal (CRS) inherited from the R8/R9 system, and the CRS Signal is used for the UE to estimate the Channel and implement demodulation of a Physical Downlink Control Channel (PDCCH) and other common channels.

The number of antennas supported by the several reference signals in the LTE system is different. In LTE R10, DMRS signals support at most 8 antenna ports, and the number of the antenna ports may be 1 to 8; the CSI-RS signal supports at most 8 antenna ports, and the number of the antenna ports can be 1,2,4 or 8; the CRS signal supports a maximum of 4 antenna ports, and the number of the antenna ports may be 1,2 or 4.

In order to support the configuration of CSI-RS resources of more antenna ports, in the prior art, the configuration of CSI-RS resources of a high-dimensional port is generated by aggregating CSI-RS resources of a low-dimensional port. For example, the CSI-RS resource configuration of 16 antenna ports may be aggregated by using two CSI-RS resources 1 and 2 of 8 ports; or, the CSI-RS resources 1-8 with 82 ports are aggregated.

However, the method for generating the CSI-RS resource configuration of the high-dimensional port by aggregating the CSI-RS resources of the low-dimensional port in the prior art has some limitations. Currently, each aggregated CSI-RS resource configuration needs to occupy 5bit resources to notify the UE, and as the number of antenna ports increases, for example, when the number of antenna ports of CSI-RS resources to be supported further increases from 16 to 18,20, 22 … … or more antenna ports, the configuration overhead of CSI-RS resource aggregation also increases correspondingly.

Disclosure of Invention

The embodiment of the invention provides a resource allocation method, a resource receiving method, a device, a base station and user equipment, and solves the problem that configuration overhead of CSI-RS resource aggregation is correspondingly increased along with the increase of the number of antenna ports of CSI-RS resources in the prior art.

In a first aspect, an embodiment of the present invention provides a resource allocation method, where the method includes: a base station sends configuration signaling of a reference signal to user equipment, wherein the number of ports of the reference signal is N, reference signals of N ports correspond to reference signals of K (K > ═ 1) M ports, wherein 1< ═ M < N, and N is a positive integer greater than or equal to 1; the configuration signaling comprises configuration information of reference signals of K M ports and corresponding relation indication information between the reference signals of the N port and the reference signals of the K M ports; and the base station transmits the reference signal of the N port to the user equipment according to the configuration signaling. The user equipment can directly carry out channel measurement and estimation according to the configuration rule of self-adaptive change corresponding to the configuration signaling sent by the base station and the corresponding reference signal, thereby avoiding the problem of increased configuration overhead when the reference signal is aggregated and reducing the configuration overhead of reference signal aggregation.

In the embodiment of the invention, various configuration modes are provided, and the effect of reducing the configuration overhead of CSI-RS resource aggregation can be realized.

In one possible design, the reference signal of N port corresponds to the reference signal of K M ports, and the reference signal of N port also corresponds to the reference signal of at least L (L > ═ 1) P ports, 1< ═ P < N, and P is not equal to M, N is a positive integer greater than or equal to 1;

the configuration signaling further includes configuration information of reference signals of the L P ports and correspondence indication information between reference signals of the N port and reference signals of the L P ports.

In one possible design, before the base station sends the configuration signaling of the reference signal to the user equipment, the method further includes:

the base station determines corresponding relation indication information between the reference signals of the N ports and the reference signals of the K M ports according to the port number N of the reference signals;

and/or

And determining corresponding relation indication information between the reference signals of the N ports and the reference signals of the L P ports.

In one possible design, the corresponding relation indication information corresponds to a 1-bit corresponding relation indication information field; the corresponding relation indication information field is used for indicating that the corresponding relation is a first mapping relation or a second mapping relation.

In one possible design, the configuration information of the reference signals of the K M ports or the reference signals of the L P ports includes mapping of the reference signals to resource units and/or a transmission subframe configuration of the reference signals of each M port or P port, so that the ue receives the reference signals of the N port according to the configuration information.

In one possible design, the transmission subframe configurations for reference signals for which there are at least two mports or P-ports are different.

In one possible design, the configuration signaling further includes an overlap factor and/or a sampling factor of the reference signals of the K M ports.

In one possible design, the configuration signaling of the reference signals of the K M ports includes group index indication information of the reference signals of the M ports and indication information of the reference signals within the resource group;

the reference signals of all M ports are formed by T (T > ═ 1) reference signal groups, and each reference signal group is formed by at least one reference signal; or

The configuration signaling of the reference signals of the K M ports comprises group index indication information of the reference signals of the M ports;

the reference signals of all M ports are formed by R (R > ═ 1) reference signal groups, and each reference signal group is formed by at least K reference signals.

In one possible design, the configuration signaling further includes bitmap indication information indicating configuration information of a reference signal of an M port and/or configuration information of a reference signal of a P port constituting the reference signal of the N port.

In one possible design, the reference signal of the M port corresponds to a bitmap indication, and the reference signal of the P port corresponds to a bitmap indication;

when M is larger than P, the bitmap indication of the reference signal of the P port is obtained according to the complement of the bitmap indication of the reference signal of the M port;

wherein the valid bit in the bitmap indication information indicates configuration information of a reference signal of an M or P port used to constitute the reference signal of the N port.

Each configuration mode can reduce the configuration overhead of CSI-RS resource aggregation.

In a second aspect, an embodiment of the present invention provides a resource configuration apparatus, where the apparatus includes: a sending unit, configured to send a configuration signaling of a reference signal to a user equipment, where the number of ports of the reference signal is N, and reference signals of N ports correspond to reference signals of K (K > ═ 1) M ports, where 1< ═ M < N, and N is a positive integer greater than or equal to 1;

the configuration signaling comprises configuration information of reference signals of K M ports and corresponding relation indication information between the reference signals of the N port and the reference signals of the K M ports;

the sending unit is further configured to send the reference signal of the N port to the user equipment according to the configuration signaling.

In a third aspect, an embodiment of the present invention provides a base station, where the base station has a function of implementing the behavior of the base station in the foregoing method. The functions can be realized by hardware, and the functions can also be realized by executing corresponding software by hardware. The hardware or software includes one or more units corresponding to the above functions.

In one possible design, the base station may be configured to include a processor and a transmitter, and the processor may be configured to support the base station to perform the corresponding functions of the method. The transmitter is configured to support communication between a base station and a user equipment. The base station may also include a memory, coupled to the processor, that retains program instructions and data necessary for the base station.

In a fourth aspect, an embodiment of the present invention provides a resource receiving method, where the method includes: the method comprises the steps that user equipment receives configuration signaling of a reference signal sent by a base station, the number of ports of the reference signal is N, the reference signal of an N port corresponds to reference signals of K (K > -1) M ports, wherein 1< -M < N, and N is a positive integer greater than or equal to 1; the configuration signaling comprises configuration information of reference signals of K M ports and corresponding relation indication information between the reference signals of the N port and the reference signals of the K M ports; the user equipment receives a reference signal of an N port sent by the base station according to the configuration signaling; and according to the configuration signaling and the reference signal, the user equipment receives the reference signal and measures the channel quality based on the N ports. The base station sends the determined configuration signaling and the reference signal to the user equipment, and the user equipment can directly measure and estimate the channel according to the configuration signaling and the reference signal, so that the problem of configuration overhead increase during reference signal aggregation is avoided, and the configuration overhead of reference signal aggregation is reduced.

In a fifth aspect, an embodiment of the present invention provides a resource configuration apparatus, where the apparatus includes: a receiving unit, configured to receive a configuration signaling of a reference signal sent by a base station, where the number of ports of the reference signal is N, and reference signals of the N ports correspond to reference signals of K (K > -1) M ports, where 1< -M < N, and N is a positive integer greater than or equal to 1; the configuration signaling comprises configuration information of reference signals of the K M ports and corresponding relation indication information between the reference signals of the N port and the reference signals of the K M ports; the receiving unit is further configured to receive a reference signal of an N port sent by the base station according to the configuration signaling; and the channel measuring unit is used for measuring the channel quality of the reference signal based on the N ports according to the configuration signaling and the reference signal.

In a sixth aspect, an embodiment of the present invention provides a user equipment, where the user equipment includes: the user equipment has the function of realizing the actual user equipment behavior in the method. The functions can be realized by hardware, and the functions can also be realized by executing corresponding software by hardware. The hardware or software includes one or more units corresponding to the above functions.

In one possible design, the structure of the user equipment includes a processor and a receiver, and the processor is configured to support the user equipment to perform corresponding functions in the above method. The receiver is used for supporting communication between the user equipment and the base station. The user equipment may also include a memory for coupling with the processor that retains program instructions and data necessary for the user equipment.

In a seventh aspect, an embodiment of the present invention provides a resource configuration method, where the method includes: the base station sends a trigger signaling of a reference signal to the user equipment, wherein the trigger signaling is used for indicating whether the base station sends the reference signal or not; the triggering signaling corresponds to a reference signal triggering domain field in the downlink control information; and the base station transmits the reference signal according to the trigger signaling. The base station sends the determined reference signal resource to the user equipment, and the user equipment can directly measure and estimate the channel according to the trigger signaling and the reference signal resource, so that the problem of increased configuration overhead during reference signal aggregation is avoided, and the configuration overhead of reference signal aggregation is reduced.

In the embodiment of the invention, various configuration modes are provided, and the configuration overhead of CSI-RS resource aggregation can be reduced.

In one possible design, the trigger signaling is channel state information, CSI, process specific or reference signal resource group specific;

the CSI process-specific triggering signaling refers to that all reference signal resources in the CSI process are triggered, the reference signal resource-specific triggering signaling refers to that each reference signal resource in the CSI process is triggered respectively, and the reference signal resource group-specific triggering signaling refers to that the reference signal resource in each reference signal resource group in the CSI process is triggered respectively.

In one possible design, the method further includes: the triggering signaling of the reference signal indicates the triggering of the CSI request at the same time; or the triggering signaling of the CSI request indicates the triggering of the reference signal at the same time.

Wherein the triggering of the CSI request is CSI process-specific or reference signal resource group-specific.

In one possible design, the reference signal trigger field is 1 or 2 bits in length.

In one possible design, the method further includes: and the base station sends a trigger type indication signaling to the user equipment, wherein the trigger type indication signaling is used for indicating whether the current trigger is the trigger of the reference signal or the trigger of the CSI request.

In one possible design, the triggering of the reference signal corresponds to a first field indication format and the triggering of the CSI request corresponds to a second field indication format.

In one possible design, when the reporting time of the CQI in the CSI is subframe n, the subframe of the reference measurement reference signal resource on which the CQI is based is n-n_{CQI_ref}；

N is_{CQI_ref}So that the reference measurement reference signal transmission time n-n_{CQI_ref}Is the same downlink subframe as the triggered transmission of the CSI request or the reference signal; or said n_{CQI_ref}So that the reference measurement reference signal transmission time n-n_{CQI_ref}An S (S) th subframe after a triggered transmission subframe for the CSI request or the reference signal>1) downlink subframes; or said n-n_{CQI_ref}So that the reference measurement reference signal transmission time n-n_{CQI_ref}T (T) after downlink subframe transmission for the CSI request or the reference signal trigger>1) or any one of T subframes.

In one possible design, the reference signal is a non-zero power reference signal and corresponds to a non-zero power reference signal resource pool;

the method further comprises the following steps: the base station adopts the same bitmap indication signaling for the non-zero power reference signal pool configuration of the user equipment and the zero power reference signal resource configuration of the user equipment;

and the effective bit in the bitmap indication signaling corresponding to the non-zero power reference signal resource pool configuration is different from the effective bit in the bitmap indication signaling corresponding to the zero power reference signal resource configuration.

In one possible design, the method further includes: the base station sends a configuration signaling of the zero power reference signal to the user equipment through the downlink control information, and the configuration signaling is used for indicating the configuration information of the zero power reference signal sent by the base station.

In one possible design, before the base station sends the configuration signaling of the zero-power reference signal to the user equipment through the downlink control information, the method further includes: and the base station sends the configuration information of the zero power reference signal resource to the user equipment through a high-level signaling. Each configuration mode can reduce the configuration overhead of CSI-RS resource aggregation.

In an eighth aspect, an embodiment of the present invention provides a resource configuration apparatus, where the apparatus includes: a sending unit, configured to send a trigger signaling of a reference signal to a user equipment, where the trigger signaling is used to indicate whether a base station sends the reference signal;

wherein, the trigger signaling corresponds to a reference signal resource trigger field in the downlink control information;

the sending unit is further configured to send the reference signal resource according to the trigger signaling.

In a ninth aspect, an embodiment of the present invention provides a base station, where the base station has a function of implementing the behavior of the base station in the method. The functions can be realized by hardware, and the functions can also be realized by executing corresponding software by hardware. The hardware or software includes one or more units corresponding to the above functions.

In a tenth aspect, an embodiment of the present invention provides a resource receiving method, where the method includes: the user equipment receives a trigger signaling of a reference signal sent by a base station, wherein the trigger signaling is used for indicating whether the base station sends the reference signal or not; the triggering signaling corresponds to a reference signal triggering domain field in the downlink control information; the user equipment receives a reference signal sent by the base station according to the trigger signaling; and according to the trigger signaling and the reference signal, the user equipment measures the channel quality of the reference signal. The base station sends the determined reference signal resource to the user equipment, and the user equipment can directly measure and estimate the channel of the reference signal according to the trigger signaling and the reference signal resource, so that the problem of increased configuration overhead during reference signal aggregation is avoided, and the configuration overhead of reference signal aggregation is reduced.

In one possible design, the ue receives a trigger signaling of a reference signal sent by a base station, wherein the method further includes:

the triggering signaling of the reference signals simultaneously indicates the triggering of the CSI request; or the triggering signaling of the CSI request indicates the triggering of the reference signal at the same time; and the user equipment carries out corresponding CSI reporting according to the trigger signaling.

In one possible design, when the reporting time of a channel quality indicator CQI in the CSI is a subframe n, a subframe of a reference measurement reference signal resource on which the CQI is based is n-n_{CQI_ref}；

N is_{CQI_ref}So that the reference measurement reference signal transmission time n-n_{CQI_ref}Is the same downlink subframe as the triggered transmission of the CSI request or the reference signal; or said n_{CQI_ref}So that the reference measurement reference signal transmission time n-n_{CQI_ref}An S (S) th subframe after a triggered transmission subframe for the CSI request or the reference signal>1) downlink subframes; or said n_{CQI_ref}So that the reference measurement reference signal transmission time n-n_{CQI_ref}T (T) after downlink subframe transmission for the CSI request or the reference signal trigger>1) or any one of T subframes.

In an eleventh aspect, an embodiment of the present invention provides a resource receiving apparatus, where the apparatus includes: a receiving unit, configured to receive a trigger signaling of a reference signal sent by a base station, where the trigger signaling is used to indicate whether the base station sends the reference signal; the triggering signaling corresponds to a reference signal triggering domain field in the downlink control information; the receiving unit is further configured to receive a reference signal sent by the base station according to the trigger signaling; and the channel measuring unit is used for measuring the channel quality of the reference signal according to the trigger signaling and the reference signal.

In a twelfth aspect, an embodiment of the present invention provides a user equipment, where the user equipment includes: the user equipment has the function of realizing the actual user equipment behavior in the method. The functions can be realized by hardware, and the functions can also be realized by executing corresponding software by hardware. The hardware or software includes one or more units corresponding to the above functions.

Drawings

FIG. 1 is a schematic diagram of a system according to an embodiment of the present invention;

fig. 2 is a flowchart of a resource allocation method according to an embodiment of the present invention;

fig. 3 is a schematic structural diagram of a resource allocation apparatus according to an embodiment of the present invention;

fig. 4 is a schematic structural diagram of a resource allocation apparatus according to an embodiment of the present invention;

fig. 5 is a schematic structural diagram of a base station according to an embodiment of the present invention;

fig. 6 is a schematic structural diagram of a user equipment according to an embodiment of the present invention;

FIG. 7 is a flowchart of another resource allocation method according to an embodiment of the present invention;

fig. 8 is a schematic structural diagram of another resource allocation apparatus according to an embodiment of the present invention;

fig. 9 is a schematic structural diagram of another resource allocation apparatus according to an embodiment of the present invention;

fig. 10 is a schematic structural diagram of another base station according to an embodiment of the present invention;

fig. 11 is a schematic structural diagram of another ue according to an embodiment of the present invention.

Detailed Description

The technical solution in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. It is to be understood that the described embodiments are merely exemplary of the invention, and not restrictive of the full scope of the invention. All other embodiments, which can be obtained by a person skilled in the art without inventive effort based on the embodiments of the present invention, are within the scope of the present invention.

The network architecture and the service scenario described in the embodiment of the present invention are for more clearly illustrating the technical solution of the embodiment of the present invention, and do not form a limitation on the technical solution provided in the embodiment of the present invention, and it can be known by those skilled in the art that the technical solution provided in the embodiment of the present invention is also applicable to similar technical problems along with the evolution of the network architecture and the appearance of a new service scenario.

As shown in fig. 1, a base station performs wireless communication with a UE, and the UE transmits information to the base station by using uplink transmission; and the base station adopts downlink transmission when sending the instruction/information to the UE. The technology described in the embodiment of the present invention can be applied to a Long Term Evolution (LTE) system or other wireless communication systems using various wireless Access technologies, such as systems using Wideband Code Division Multiple Access (WCDMA), frequency Division Multiple Access, time Division Multiple Access, orthogonal frequency Division Multiple Access, single carrier frequency Division Multiple Access, and other Access technologies. In addition, the method can also be applied to a subsequent evolution system using an LTE system, such as a fifth generation 5G system and the like. For clarity, the LTE system is only exemplified here.

In the embodiments of the present invention, the terms "network" and "system" are often used interchangeably, but those skilled in the art can understand the meaning. The terminals to which embodiments of the present invention relate may include various devices having wireless communication capabilities or other processing devices connected to wireless modems. For convenience of description, in the embodiments of the present invention, the above-mentioned devices are collectively referred to as a terminal. The Base Station (BS) according to the embodiment of the present invention is a device deployed in a radio access network to provide a terminal with a wireless communication function. The base stations may include various forms of macro base stations, micro base stations, relay stations, access points, and the like. In systems using different radio access technologies, the names of devices with base station functions may be different, for example, in an LTE network, the device is called an evolved node B (eNB or eNodeB), in a third generation 3G network, the device is called a node B (node B), and so on. For convenience of description, the above-mentioned apparatuses providing a UE with a wireless communication function are collectively referred to as a base station or BS in this application.

One embodiment of the invention provides a resource allocation method and a device based on the method. The base station configures reference signals for a plurality of UEs, and takes a first UE in a wireless network as an example for description. A base station sends a configuration signaling of a reference signal to UE; the configuration signaling comprises configuration information of reference signals of K M ports corresponding to the reference signal of the N port and indication information of corresponding relation between the reference signal of the N port and the reference signals of the K M ports; and the base station sends the reference signal of the N port to the UE according to the configuration information, and the UE performs channel measurement and estimation of the reference signal according to the received configuration signaling and the reference signal.

It should be noted that, in the embodiment of the present invention, a base station may configure a reference signal of a UE through multiple configuration manners, and a solution provided in the embodiment of the present invention is described in detail below with reference to fig. 2, where fig. 2 is a flowchart of a resource configuration method provided in the embodiment of the present invention, and an implementation subject in the embodiment of the present invention is the base station. As shown in fig. 2, this embodiment specifically includes the following steps:

step 210, the base station sends a configuration signaling of a reference signal to the user equipment, where the number of ports of the reference signal is N, and the reference signal of the N ports corresponds to reference signals of K (K > -1) M ports, where 1< -M < N, and N is a positive integer greater than or equal to 1;

the configuration signaling comprises configuration information of reference signals of K M ports and corresponding relation indication information between the reference signals of the N port and the reference signals of the K M ports.

Specifically, the base station determines, according to the network environment and the location of each UE, the port number N of the reference signal of each UE, for example, the base station determines that the port number N of the reference signal of the first UE is 24; the base station determines that the number of ports N of the reference signal of the second UE is 30, and so on.

Before this step, the base station further determines configuration information of the reference signal of the N port and the reference signals of the K M ports and a corresponding relationship between the reference signal of the N port and the reference signals of the K M ports according to the port number N.

In the embodiment of the present invention, the K M ports are specifically the number of ports aggregated to the N port at the UE side. For example, 24 ports are aggregated by 64 ports.

A base station sends configuration signaling of a reference signal to UE, the number of ports of the reference signal is N, wherein the reference signal of the N port corresponds to reference signals of K (K > ═ 1) M ports, 1< ═ M < N, and N is a positive integer greater than or equal to 1; the configuration signaling comprises configuration information of reference signals of K M ports and corresponding relation indication information between the reference signals of the N port and the reference signals of the K M ports

Furthermore, the reference signal of the N port corresponds to the reference signals of K M ports, the reference signal of the N port also corresponds to the reference signals of at least L (L > ═ 1) P ports, 1< ═ P < N, and P is not equal to M, N is a positive integer greater than or equal to 1; the configuration signaling further includes configuration information of reference signals of the L P ports and correspondence indication information between reference signals of the N port and reference signals of the L P ports.

It can be understood that, before this step, the base station further determines, according to the port number N, configuration information of reference signals of L P ports corresponding to the reference signal of the N port and correspondence relationship indication information between the reference signal of the N port and the reference signals of the L P ports.

In the embodiment of the present invention, the K M ports are specifically K resources used by the base station and the UE side to generate CSI-RS resources of the N port. For example, the 24-port CSI-RS resource is aggregated by 3 8-port CSI-RS resources.

In the embodiment of the present invention, the configuration signaling may specifically be a higher layer signaling, such as an RRC signaling, or a physical layer dynamic signaling, such as a Downlink Control Information (DCI) signaling.

Step 220, the base station sends the reference signal of the N port to the user equipment according to the configuration signaling.

Specifically, according to the configuration signaling determined in step 210, the base station sends a reference signal to the first UE, so that the first UE receives the corresponding reference signal and performs channel measurement according to the received configuration signaling and the reference signal.

The resource allocation method provided by the embodiment of the invention is described in detail through a plurality of allocation modes.

Further, in the first configuration, before step 210, the base station determines the reference signals of the N port and the reference signals of the K M ports and/or determines correspondence indication information between the reference signals of the N port and the reference signals of the L P ports, which is further specifically: the base station determines the corresponding relation according to whether the port number N exceeds a preset port threshold value, and determines different mapping relations according to the determined values of different port numbers so as to achieve the purpose of saving configuration overhead of reference signal aggregation.

In the embodiment of the present invention, the preset port threshold may be set according to the inherent attribute of each base station, and different base stations may set different port thresholds, for example, the port threshold may be 20, 24, and so on. If the port number N exceeds the port threshold, the corresponding relation is a first mapping relation; if the number of ports N does not exceed the port threshold, the corresponding relationship is the second mapping relationship.

The corresponding relation indication information is a 1-bit corresponding relation indication information field, and the corresponding relation indication information field is used for indicating that the corresponding relation is a first mapping relation or a second mapping relation; that is, according to the number N of ports, after determining the first mapping relationship and the second mapping relationship, the base station generates a corresponding relationship indication information field, where the corresponding relationship indication information field is used to indicate the first mapping relationship or the second mapping relationship corresponding to the first UE.

For example, the correspondence relation indication information field is 0 or 1, and when 0, corresponds to the first mapping relation; when the mapping relation is 1, the mapping relation corresponds to a second mapping relation; and the first UE selects the corresponding first mapping relation or second mapping relation according to the corresponding relation indication information field.

In the embodiment of the present invention, the first mapping relationship is specifically a reduced order configuration rule, that is, when the number N of ports exceeds the port threshold, the base station determines a preset value or a predefined complementary set of a full CSI-RS resource and an N-port CSI-RS resource, and uses the complementary set as a CSI-RS resource to be configured by the first UE. The second mapping relationship is specifically an ordering configuration rule, that is, when the port number N does not exceed the port threshold, the base station uses the port number N as a CSI-RS resource port to be configured by the first UE.

And the first UE configures the reference signals of the K M ports of the first UE with the reference signals of the N ports according to the first mapping relation or the second mapping relation.

In one example, assuming a port threshold of 20, one resource element per CSI-RS port, and a total number of resource elements of the predefined CSI-RS resource of 40; assuming that the number N of CSI-RS ports to be transmitted of the base station is 32, the base station determines that the corresponding relation is a first mapping relation according to the complement 8 of the number N of ports and the total number of resource elements of a predefined CSI-RS resource, the base station sends a configuration signaling to the UE, the configuration signaling comprises the first mapping relation, so that the UE analyzes the configuration signaling to obtain the first mapping relation, and meanwhile, the base station sends the CSI-RS resource of the 8 ports based on the configuration signaling, so that the UE determines the CSI-RS resource of the 32 ports to be transmitted according to the total number (40 CSI-RS resource elements) of the CSI-RS resource of the 8 ports and the predefined CSI-RS resource.

Further, in the second configuration mode, the configuration signaling does not include the corresponding relationship indication information, that is, the configuration signaling only includes the configuration information of the reference signals of the K M ports, and does not include the indications of the first mapping relationship and the second mapping relationship.

It should be noted that the predefined total number of Resource elements of the CSI-RS Resource is the fixed number of CSI-RS Resource elements available for performing CSI-RS Resource configuration in each Resource Block (RB), for example, in the current LTE standard, the total number of CSI-RS Resource elements available for performing CSI-RS Resource configuration in each RB is 40.

Further, in the third configuration mode, the configuration information of the reference signals of the K M ports or the reference signals of the L P ports includes mapping of the reference signals to resource units and/or a transmission subframe configuration of the reference signals of each M port or P port, so that the first UE receives the reference signals of the N port according to the configuration information.

Wherein, the transmission subframe configurations of the reference signals of at least two M ports or P ports are different.

For example, assuming that the number N of reference signal ports to be configured or transmitted is 32, the resource aggregation configuration of the reference signal of the 32 ports is jointly composed of a frequency domain resource location configuration and a time domain subframe configuration (the resource aggregation can be generated by aggregating reference signal resources configured on a plurality of subframes, for example, the resource of the reference signal of the 32 ports is composed of one 16-port reference signal resource transmitted on subframe 1 and one 16-port reference signal resource transmitted on subframe 2. more specifically, the frequency domain resource configuration of the reference signal resource of the first 16 ports is 4, and the frequency domain configuration of the reference signal resource of the second 16 ports is 8. the time domain resource configuration information is combined by the subframe configuration of the time domain (i.e. I_CSI-RS，T_CSI-RS) Is preferably T_CSI-RSThe same value is taken in one configuration. Through I_CSI-RSThe aggregation of the reference signal resources on a plurality of subframes can be realized by different values of the reference signal resources. Wherein the subframe configuration parameter (I)_CSI-RS，T_CSI-RS) The values of (a) can be shown in the following table:

in the embodiment of the present invention, the subframe is specifically a DwPTS subframe or a Normal subframe, by way of example and not limitation.

Further, in the fourth configuration, the base station further determines an overlapping factor (overlapping) of the reference signal resource and/or a sampling factor (overlapping) of the reference signal according to the port number N corresponding to the reference signal resource; the base station sends configuration signaling to the first UE, wherein the configuration signaling comprises configuration information, and the configuration information comprises overlapping factors and/or sampling factors of reference signals of K M ports, so that the first UE performs configuration of corresponding reference signal resources according to the overlapping factors and/or the sampling factors.

For example, assuming that the number N of reference signal ports to be transmitted is 24, if the resource configuration of the 24 ports has overlapping and/or sampling of multiple sets of reference signal resources, when the base station transmits the configuration signaling to the first UE, the overlapping factor and/or the overlapping factor corresponding to the reference signal resources of the N ports are carried in the configuration signaling. Wherein, by way of example and not limitation, the overlapping factor is specifically 2 or 4, and represents that there are 2 or 4 identical reference signal resources that overlap among K sets of reference signal resources used to generate the N-port reference signal resource, and the 2 or 4 identical reference signal resources that overlap may be reference signal resources located in different subframes but having the same frequency domain position; or that there are 2 or 4 identical component reference signal resources between any two N-port reference signal resources.

The oversampling factor may also be specifically 2 or 4, which means that the sampling granularity of the N-port reference signal resource is 2 or 4 ports, that is, one port is extracted from every 2 or 4 ports of the N ports, and then the reference signal resource is sent only on the corresponding extracted port.

In one example, the total number of CSI-RS resource elements per RB is 40, and there are two reference signal resource configurations of 24 ports in the 40 resource elements, where a first reference signal resource of 24 ports is generated by combining one reference signal resource configuration of 12 ports and one reference signal resource configuration of 12 ports, and a second reference signal resource of 24 ports is generated by combining one reference signal resource configuration of 12 ports and one reference signal resource configuration of 12 ports, where the second reference signal resource configuration of 12 ports is a reference signal resource overlapped between the reference signal resource configurations of two 24 ports. The overlap factor is 1/2.

The foregoing base station may send overlapping factors or overlapping factors for reference signal resource configuration to the UE respectively, and the base station may also send overlapping to the UE simultaneouslyThe combined configuration of the aping and overrating factors, i.e. both overrating and overrating factors, e.g. (O)₁，S₁) Wherein O is₁And S₁Indicating the overlapping and overlapping factors, respectively. And flexible aggregation and configuration of more reference signal resources can be realized in a combined mode.

It is understood that the configuration information may also include an overlap factor and/or a sampling factor of the reference signals of the L P ports, which will not be repeated again since the process is similar.

Further, in the fifth configuration mode, the method further includes a step of grouping the low-dimensional reference signals by the base station, and through the step, the base station generates the high-dimensional reference signal configuration by grouping the low-dimensional reference signals, so that the effect of saving the overhead of the reference signal aggregation configuration can be achieved.

In the embodiment of the invention, the configuration information of the reference signals of the K M ports comprises the indication information of the reference signal group of the M ports and the indication information of the selected reference signal resource in the resource group; wherein the reference signals of all candidate M ports are divided into T (T > ═ 1) groups, and each group of reference signals is composed of at least one reference signal; or

In the embodiment of the invention, the configuration information of the reference signals of the K M ports comprises indication information of a reference signal group of the M port; wherein the reference signals of all candidate M ports are divided into T (T > ═ 1) groups, each group consisting of at least K reference signals.

For example, for a 2-port reference signal configuration example, 20 types of 2-port reference signal Resource configurations are shared in each Physical Resource Block (PRB), and the base station groups 20 2-port reference signal resources, that is, every 4 types of 2-port reference signal resources are a group, so as to obtain 5 reference signal Resource groups. Assume that the reference signal resource numbers of 2 ports in the 5 reference signal resource groups are: {0,1,2,3}, {4,5,6,7}, {8,9,10,11}, {12,13,14,15} and {16,17,18,19}, wherein each reference signal resource configuration in each group corresponds to a 2-port reference signal resource. The base station determines, according to the number N of reference signal resource ports to be transmitted (for example, the number of ports is 18), indication information of a reference signal group and indication information of a selected reference signal in a resource group, and determines not only a number of the reference signal resource group but also a number of a selected reference signal resource configuration in each resource group.

It should be noted that the configuration information may also include only the reference signal group indication information, that is, the base station only needs to determine the indication information of the reference signal resource group. For example, the first and second sets of reference signal resources are selected. The indication information of the reference signal resource group is 1 and 2.

It is to be understood that the configuration information may further include reference signal resource group indication information of the P-port and indication information of a selected reference signal resource within the resource group; wherein the reference signals of all candidate P ports are divided into T (T > ═ 1) groups, and each group of reference signals is composed of at least one reference signal; or

The configuration information comprises indication information of a reference signal resource group of the P port; wherein the reference signal resources of all candidate P ports are divided into T (T > ═ 1) groups, and each group of reference signals is composed of at least L reference signal resources.

Further, in a sixth configuration, the configuration signaling further includes bitmap indication information, where the bitmap indication information indicates configuration information of reference signal resources of an M port and/or reference signal resources of a P port, which constitute reference signal resources of the N port.

In the embodiment of the invention, the reference signal resource of the M port corresponds to a bitmap indication, and the reference signal resource of the P port corresponds to a bitmap indication; when M is larger than P, the bitmap indication of the reference signal resource of the P port is obtained according to the complement of the bitmap indication of the reference signal resource of the M port; wherein the valid bit in the bitmap indication information indicates configuration information of an M or P port reference signal used to constitute the reference signal of the N port.

A base station determines a port base number for configuring reference signal resources; and the reference signal resource under the port base number is a reference signal resource at a low latitude. For example, reference signal resources of 2 ports, and reference signal resources of 4 ports. According to the port base number, the base station determines the length of bitmap indication information of the reference signal resource based on the port base number, wherein each bit in the bitmap indication information corresponds to the same port base number; in the embodiment of the present invention, the length of the bitmap information corresponds to the port base number, that is, the bitmap information corresponding to the port base number with the lower dimension is longer. For example, in bitmap information with a length of 20 bits, each bit corresponds to a reference signal resource of 2 ports; in the bitmap information with the length of 10 bits, each bit corresponds to a reference signal resource with 4 ports. The base station sets partial bits in the bitmap information as valid bits, and optionally, 1 is the valid bit; "0" is an invalid bit, wherein each bit in the bitmap indication corresponds to a reference signal resource configuration under the port cardinality, and the valid bit indicates that the reference signal resource configuration corresponding to the bit is used for generating reference signal resources of the N ports; the invalid bit represents that the reference signal resource configuration corresponding to the bit is not used to generate the reference signal resource of the N-port. The base station sends configuration signaling to the first UE, wherein the configuration signaling comprises bitmap indication information, so that the first UE carries out aggregation configuration on N-port reference signal resources according to a valid bit pair in the bitmap indication information.

In one example, the bitmap information is "00110001010101010101", the bitmap indication information has a total length of 20 bits, wherein each bit corresponds to a reference signal resource of 2 ports. The bitmap indication information indicates that the aggregation configuration of the reference signal resources of the 18 th port is generated by aggregation of the reference signal resource configurations of the 2 nd port corresponding to the 3rd, 4 th, 8 th, 10 th, 12 th, 14 th, 16 th, 18 th and 20 th bit. In another example, the bitmap indication information is specifically "0011000101", and the total length of the bitmap indication information is 10 bits, where each bit corresponds to a reference signal resource of 4 ports. The bitmap indication information gives the aggregation configuration of the reference signal resources of 16 ports, and the aggregation configuration is generated by aggregating the reference signal resource configurations of 4 ports correspondingly indicated by 3rd, 4 th, 8 th and 10 th bits.

In the embodiment of the present invention, when M is 8, that is, the reference signal resource of the M port is the reference signal resource of the 8 ports, and P is 4, that is, the reference signal resource of the P port is the reference signal resource of the 4 ports, the bitmap indication of the reference signal resource of the 4 ports may be obtained according to the complement of the bitmap indication of the reference signal resource of the 8 ports. The base station may configure a plurality of bitmap indication information to the UE, for example, the base station may configure one bitmap indication of 8-port reference signal resources, and configure one bitmap indication of 4-port reference signal resources and one bitmap indication of 2-port reference signal resources. The bitmap indication of the reference signal resource of the low-dimensional port is obtained based on the bitmap indication of the reference signal resource of the high-dimensional port.

Therefore, by applying the above multiple resource allocation methods, the base station sends the allocation signaling of the reference signal to the UE; the configuration signaling comprises configuration information of reference signals of K M ports corresponding to the reference signal of the N port and indication information of corresponding relation between the reference signal of the N port and the reference signals of the K M ports; and the base station sends the reference signal of the N port to the UE according to the configuration information, and the UE performs channel quality measurement corresponding to the reference signal according to the received configuration signaling and the reference signal. The base station sends the configuration signaling to the user equipment, so that the user equipment can receive the reference signal and measure the corresponding channel quality according to the self-adaptive configuration rule indicated by the configuration signaling, thereby avoiding the problem of increased configuration overhead when the reference signal is aggregated and reducing the configuration overhead of reference signal aggregation.

The method of the above embodiment is described with the base station as the executing subject, and the resource receiving method is briefly described with the user equipment as the executing subject.

Specifically, the UE receives a configuration signaling of a reference signal sent by a base station, where the number of ports of the reference signal is N, and reference signals of N ports correspond to reference signals of K (K > ═ 1) M ports, where 1< ═ M < N, and N is a positive integer greater than or equal to 1; the configuration signaling comprises configuration information of reference signals of K M ports and corresponding relation indication information between the reference signals of the N port and the reference signals of the K M ports;

the UE receives a reference signal of an N port sent by a base station according to the configuration signaling; and receiving the corresponding N-port reference signal and measuring the channel quality according to the configuration signaling. The methods described in the foregoing embodiments can all implement the resource allocation method, and accordingly, an embodiment of the present invention further provides a resource allocation apparatus for implementing the resource allocation method provided in the foregoing embodiments, as shown in fig. 3, the apparatus includes: a transmitting unit 310.

A sending unit of the apparatus, configured to send a configuration signaling of a reference signal to a user equipment, where the number of ports of the reference signal is N, and reference signals of the N ports correspond to reference signals of K (K > ═ 1) M ports, where 1< ═ M < N, and N is a positive integer greater than or equal to 1;

the sending unit is further configured to send a reference signal of an N port to the user equipment according to the configuration signaling.

Further, in addition to the reference signals of K M ports corresponding to the reference signals of the N ports, the reference signal of the N port sent by the sending unit 310 also corresponds to reference signals of at least L (L > -1) P ports, where 1< ═ P < N, where P is not equal to M, and N is a positive integer greater than or equal to 1;

Further, the apparatus further comprises:

a determining unit 320, configured to determine, according to the port number N of the reference signal, correspondence indication information between the reference signal of the N port and the reference signals of the K M ports;

and/or

The determining unit 320 is further configured to determine correspondence indication information between the reference signals of the N ports and the reference signals of the L P ports.

Further, the air conditioner is provided with a fan,

the corresponding relationship indication information included in the configuration signaling sent by the sending unit 310 corresponds to a 1-bit corresponding relationship indication information field; the corresponding relation indication information field is used for indicating that the corresponding relation is a first mapping relation or a second mapping relation.

Further, the configuration information of the reference signals of the K M ports or the reference signals of the L P ports includes mapping of the reference signals to resource units and/or a transmission subframe configuration of the reference signal of each M port or P port, so that the ue receives the reference signal of the N port according to the configuration information.

Further, the transmission subframe configurations of the reference signals for which there are at least two M-ports or P-ports are different.

Further, the configuration signaling sent by the sending unit 310 further includes an overlap factor and/or a sampling factor of the reference signals of the K M ports.

Further, the configuration signaling of the reference signals of the K M ports includes group index indication information of the reference signals of the M ports and indication information of the reference signals within the resource group;

wherein the reference signals of all M ports are composed of R (R > ═ 1) reference signal groups, and each reference signal group is composed of at least K reference signals.

Further, the configuration signaling sent by the sending unit 310 further includes bitmap indication information, where the bitmap indication information indicates configuration information of a reference signal of an M port and/or configuration information of a reference signal of a P port, which constitute the reference signal of the N port.

Further, the reference signal of the M port corresponds to a bitmap indication, and the reference signal of the P port corresponds to a bitmap indication;

wherein the valid bit in the bitmap indication information indicates configuration information of a reference signal of an M or P port used to constitute a reference signal of an N port.

Correspondingly, an embodiment of the present invention further provides a resource receiving apparatus, configured to implement the resource receiving method provided in the foregoing embodiment, as shown in fig. 4, where the apparatus includes: a receiving unit 410 and a channel measuring unit 420.

A receiving unit 410 of the apparatus is configured to receive a configuration signaling of a reference signal sent by a base station, where the number of ports of the reference signal is N, and reference signals of the N ports correspond to reference signals of K (K > ═ 1) M ports, where 1< ═ M < N, and N is a positive integer greater than or equal to 1;

the configuration signaling comprises configuration information of reference signals of the K M ports and corresponding relation indication information between the reference signals of the N port and the reference signals of the K M ports;

the receiving unit 410 is further configured to receive a reference signal of an N port sent by the base station according to the configuration signaling;

a channel measuring unit 420, configured to perform channel quality measurement based on N ports according to the configuration signaling and the reference signal.

Therefore, by applying the resource allocation apparatus and the resource receiving apparatus, the resource allocation apparatus sends the configuration signaling of the reference signal to the resource receiving apparatus; the configuration signaling comprises configuration information of reference signals of K M ports corresponding to the reference signal of the N port and indication information of corresponding relation between the reference signal of the N port and the reference signals of the K M ports; and the resource allocation device sends the reference signal of the N port to the resource receiving device according to the allocation information, and the resource receiving device receives the reference signal of the N port and measures the corresponding channel quality according to the received allocation signaling. The resource allocation device sends the allocation signaling to the resource receiving device, so that the resource receiving device can receive the reference signal and measure the corresponding channel quality according to the adaptive allocation rule indicated by the allocation signaling, thereby avoiding the problem of increased allocation overhead when the reference signal is aggregated and reducing the allocation overhead of reference signal aggregation.

In addition, the resource allocation apparatus provided in the embodiment of the present invention may further adopt the following implementation manner to implement the resource allocation method in the foregoing embodiment of the present invention, as shown in fig. 5, where the base station includes: a transmitter 510, a processor 520, and a memory 530.

A transmitter 510 of the apparatus transmits a configuration signaling of a reference signal to a user equipment, where the number of ports of the reference signal is N, and K (K > -1) reference signals of M ports corresponding to the reference signal of the N ports, where 1< M < N, and N is a positive integer greater than or equal to 1;

the transmitter 510 is further configured to transmit a reference signal of an N port to the ue according to the configuration signaling.

The memory 530 is used for storing program codes and data of the terminal.

It will be appreciated that fig. 5 only shows a simplified design of a base station. In practice, the base station may comprise any number of transmitters, receivers, processors, controllers, memories, etc., and all base stations that can implement the present invention are within the scope of the present invention.

Furthermore, the reference signal of the N port corresponds to reference signals of at least L (L > -1) P ports, in addition to reference signals of K M ports corresponding to reference signals of the N port, where 1< ═ P < N, and P is not equal to M, and N is a positive integer greater than or equal to 1;

the configuration signaling sent by the transmitter further includes configuration information of reference signals of the L P ports and correspondence indication information between reference signals of the N port and reference signals of the L P ports.

Further, the processor 520 is configured to determine, according to the port number N of the reference signal, correspondence indication information between the reference signal of the N port and the reference signals of the K M ports;

and/or

Further, the air conditioner is provided with a fan,

the corresponding relation indication information included in the configuration signaling sent by the transmitter 510 corresponds to a 1-bit corresponding relation indication information field; the corresponding relation indication information field is used for indicating that the corresponding relation is a first mapping relation or a second mapping relation.

Further, the configuration signaling sent by the transmitter 510 further includes an overlap factor and/or a sampling factor of the reference signals of the K M ports.

Further, the configuration signaling of the reference signals of the K M ports includes reference signal group indication information of the M ports and indication information of the reference signals in the resource group;

Further, the configuration signaling sent by the transmitter 510 further includes bitmap indication information, where the bitmap indication information indicates configuration information of reference signals of M ports and/or configuration information of reference signals of P ports constituting the reference signals of N ports.

In addition, the resource receiving apparatus provided in the embodiment of the present invention may further adopt the following implementation manner to implement the resource receiving method in the foregoing embodiment of the present invention, as shown in fig. 6, where the user equipment includes: a receiver 610, a processor 620, and a memory 630.

A receiver 610 of the apparatus is configured to receive a configuration signaling of a reference signal sent by a base station, where the number of ports of the reference signal is N, and reference signals of the N ports correspond to reference signals of K (K > -1) M ports, where 1< -M < N, and N is a positive integer greater than or equal to 1;

the receiver 610 is further configured to receive a reference signal of an N port sent by the base station according to the configuration signaling;

the processor 620 is configured to perform channel quality measurement based on the reference signal of the N-port according to the configuration signaling and the reference signal.

The memory 630 is used for storing program codes and data of the terminal.

It will be appreciated that fig. 6 only shows a simplified design of the user equipment. In practical applications, the user equipment may comprise any number of transmitters, receivers, processors, controllers, memories, etc., and all user equipment that can implement the present invention are within the scope of the present invention.

The controller/processor for implementing the above described base station or user equipment of the present invention may be a Central Processing Unit (CPU), general purpose processor, Digital Signal Processor (DSP), Application Specific Integrated Circuit (ASIC), Field Programmable Gate Array (FPGA) or other programmable logic device, transistor logic device, hardware component or any combination thereof. Which may implement or perform the various illustrative logical blocks, modules, and circuits described in connection with the disclosure. The processor may also be a combination of computing functions, e.g., comprising one or more microprocessors, DSPs, and microprocessors, among others.

Therefore, by applying the base station and the user equipment, the base station sends a configuration signaling of the reference signal to the UE; the configuration signaling comprises configuration information of reference signals of K M ports corresponding to the reference signal of the N port and indication information of corresponding relation between the reference signal of the N port and the reference signals of the K M ports; and the base station sends the reference signal of the N port to the UE according to the configuration information, and the UE performs channel quality measurement of the reference signal according to the received configuration signaling and the reference signal. The base station sends the configuration signaling to the user equipment, so that the user equipment can receive the reference signal and measure the corresponding channel quality according to the self-adaptive configuration rule indicated by the configuration signaling, thereby avoiding the problem of increased configuration overhead when the reference signal is aggregated and reducing the configuration overhead of reference signal aggregation.

The invention also provides another resource allocation method and a device based on the method. The base station configures reference signals for a plurality of UEs, and takes a first UE in a wireless network as an example for description. A base station sends a trigger signaling of a reference signal to a first UE; in the embodiment of the present invention, the trigger signaling is used to indicate whether the base station transmits the reference signal resource or not; and the base station sends the reference signal resource to the UE according to the trigger signaling, and the first UE receives the reference signal according to the received reference signal resource.

It should be noted that, in the embodiment of the present invention, a base station may configure a reference signal of a UE through multiple configuration manners, and the following describes a scheme provided in the embodiment of the present invention in detail with reference to fig. 7, where fig. 7 is a flowchart of another resource configuration method provided in the embodiment of the present invention, and an implementation subject in the embodiment of the present invention is the base station. As shown in fig. 7, this embodiment specifically includes the following steps:

step 710, the base station sends a trigger signaling of a reference signal to the user equipment, wherein the trigger signaling is used for indicating whether the base station sends the reference signal;

wherein, the trigger signaling corresponds to a reference signal resource trigger field in the downlink control information. Optionally, the trigger signaling may also correspond to a CSI request field in the downlink control information.

Specifically, when the reference signal (e.g., CSI-RS resource) is a user-specific reference signal resource, and different users have their own specific reference signal resource and the number of users having active packets in a cell at the same time is large, reference signal resource configuration and corresponding time-frequency resource overhead required by the whole cell will be large.

The existing CSI-RS resource is a periodic CSI-RS which is configured by high-level signaling in a semi-static mode. That is, the transmission mechanism of the reference signal resource does not support dynamic switching and adaptive change of the CSI-RS resource. For example, when K (K > ═ 1) reference signal resources within one CSI process are configured as a period P, K CSI-RS resources are transmitted at the period P, respectively. However, in the actual data transmission process, when L (1< ═ L < ═ K) CSI-RS resources among the K resources can be released, since the configuration of the K resources is semi-static, the closing of the L CSI-RS resources cannot be supported in time.

In order to reduce the overhead of the user-specific reference signal resource, in the embodiment of the present invention, the CSI-RS resource is transmitted in an aperiodic triggering manner (i.e., a manner of triggering only when needed and not triggering when not needed). In order to implement the aperiodic triggering of the CSI-RS resource, in the embodiment of the present invention, the aperiodic triggering of the CSI-RS resource is implemented by adding a reference signal resource trigger field in an uplink or downlink DCI format of a downlink control channel.

In the embodiment of the invention, the base station sends a trigger signaling to the first UE, and the trigger signaling is used for indicating whether the base station sends the reference signal or not.

Step 720, the base station sends the reference signal according to the trigger signaling.

Specifically, after generating the trigger signaling, the base station sends a reference signal to the first UE according to the trigger signaling, so that the first UE performs channel quality measurement corresponding to the reference signal according to the received trigger signaling and the reference signal.

Optionally, in this embodiment of the present invention, the trigger signaling is specific to a CSI process or specific to a reference signal resource group;

Optionally, the method in the embodiment of the present invention further includes: the triggering signaling of the reference signal indicates the triggering of the CSI request at the same time; or the triggering signaling of the CSI request indicates the triggering of the reference signal at the same time;

wherein the triggering of the CSI request is CSI process specific or reference signal resource group specific. The reference signal trigger signaling indicates the triggering of the CSI request at the same time, which means that the reference signal trigger signaling implies the triggering of reporting the CSI corresponding to the reference signal resource at the same time. Therefore, when the trigger signaling of the reference signal is sent to the UE, the UE can simultaneously obtain the sending information of the reference signal resource and the reporting trigger information of the CSI corresponding to the sent reference signal resource based on the interpretation of the trigger signaling. The fact that the triggering signaling of the CSI request indicates the triggering of the reference signal at the same time means that the triggering of the CSI request implies the triggering of the reference signal sending corresponding to the CSI request at the same time.

Therefore, when the trigger signaling of the CSI request is sent to the UE, the UE can simultaneously obtain the trigger of the CSI request and the trigger information of the reference signal sending corresponding to the CSI request based on the interpretation of the trigger signaling.

Optionally, the reference signal trigger field length is 1bit or 2 bits.

Optionally, the method further comprises: the base station sends a trigger type indication signaling to the UE, wherein the trigger type indication signaling is used for indicating whether the current trigger is the trigger of the reference signal or the trigger of the CSI request.

Optionally, the triggering of the reference signal corresponds to a first field indication format, and the triggering of the CSI request corresponds to a second field indication format.

Wherein the first field indication format corresponds to a field value description of one signaling indication, and the second field indication format corresponds to a field value description of another signaling indication. Optionally, each field indicates a table whose format may correspond to a signaling interpretation.

Optionally, when a reporting time of a Channel Quality Indication (CQI) in the CSI is a subframe n, a subframe of a reference measurement reference signal resource on which the CQI is based is n-n_{CQI_ref}；n_{CQI_ref}So that the reference measurement reference signal transmission time n-n_{CQI_ref}A downlink subframe which is the same as the triggered transmission of the CSI request or the reference signal; or n_{CQI_ref}So that the reference measurement reference signal transmission time n-n_{CQI_ref}S (S) th (S) after transmission subframe for triggering of CSI request or reference signal>1) downlink subframes; or n-n_{CQI_ref}Satisfy the requirements ofReference signal emission time n-n is measured_{CQI_ref}T (T) after sending downlink subframe for CSI request or triggering of the reference signal>1) or any one of T subframes.

Optionally, in the embodiment of the present invention, the reference signal may also be a non-zero power reference signal and corresponds to a non-zero power reference signal resource pool;

the method of the embodiment of the invention also comprises the following steps: the base station adopts the same bitmap indication signaling for the non-zero power reference signal resource pool configuration of the UE and the zero power reference signal resource configuration of the UE;

Optionally, the method further comprises: the base station sends a configuration signaling of the zero power reference signal to the UE through the downlink control information, and the configuration signaling is used for indicating the configuration information of the zero power reference signal sent by the base station.

Optionally, before the base station sends the configuration signaling of the zero power reference signal to the UE through the downlink control information, the method further includes: and the base station sends the configuration information of the zero power reference signal resource to the UE through a high-level signaling.

Further, in the existing triggering technology supporting aperiodic CSI reporting, the triggering signaling of the triggering technology is included in the CSI request field of the uplink DCI of the downlink control channel. Specifically, the following table 1 shows.

Table 1 existing CSI request field and description

However, the triggering of the conventional aperiodic CSI reporting is CSI process specific or serving cell specific, that is, when the aperiodic CSI reporting is triggered, CSI reports corresponding to all CSI processes in the serving cell C by the UE are aperiodic CSI reports. In addition, when two restricted measurement subframe sets are configured, aperiodic CSI reporting by the UE on the two measurement subframe sets is triggered separately.

For triggering of the aperiodic CSI-RS resource, since the switch and the change of the configuration of the CSI-RS resource transmission are CSI-RS resource specific, the triggering signaling of the aperiodic CSI-RS resource should be resource specific signaling. When the number of CSI-RS resources in one CSI process is large, the overhead of required aperiodic CSI-RS trigger signaling is large, and therefore, the base station may divide K (K > ═ 1) CSI-RS resources in each CSI process into two groups, where each group corresponds to the trigger signaling of one aperiodic CSI-RS resource. Optionally, the triggering signaling of an aperiodic CSI-RS is shown in table 2 below, where the triggering signaling in table 2 is only an exemplary triggering signaling design. Other designs for the trigger signaling for aperiodic CSI-RS are not excluded.

TABLE 2 triggering Signaling of aperiodic CSI-RS

In addition, when there is one CSI-RS resource in each CSI process, another optional aperiodic CSI-RS trigger signaling is shown in table 3 below, where the trigger signaling in table 3 is only an exemplary trigger signaling design. Other designs for the trigger signaling for aperiodic CSI-RS are not excluded.

TABLE 3 triggering Signaling of aperiodic CSI-RS

And because a certain coupling relation exists between the aperiodic CSI report and the triggering of the aperiodic CSI-RS resource, the aperiodic CSI report is implied at the same time when the aperiodic CSI-RS resource is sent. Namely, the triggering of the aperiodic CSI-RS and the triggering of the aperiodic CSI report are bound. The triggering of the aperiodic CSI-RS implies the triggering of the corresponding aperiodic CSI report, or the triggering of the aperiodic CSI report implies the triggering of the corresponding aperiodic CSI-RS at the same time.

In the first configuration, the base station binds the trigger sent by the aperiodic CSI-RS resource and the trigger reported by the aperiodic CSI, so that the trigger reported by the aperiodic CSI is correspondingly extended to be specific to the CSI-RS resource.

Optionally, the triggering of the aperiodic CSI-RS resource may also be CSI-RS resource group specific. In specific implementation, one CSI-RS resource pool can be customized, and the base station divides resources in the resource pool into T groups which correspond to T CSI processes respectively. And carrying out aperiodic triggering on the CSI-RS resource in each process of the T processes. The triggering signaling is a CSI-RS triggering field in an uplink or Downlink DCI format of a PDCCH/Enhanced Physical Downlink Control Channel (EPDCCH). Optionally, the number of bits of the CSI-RS trigger field is 1 bit. Optionally, another trigger signaling for aperiodic CSI-RS triggering is shown in table 4 below. The trigger signaling in table 4 is only an exemplary trigger signaling design. Other designs for the trigger signaling for aperiodic CSI-RS are not excluded.

Table 4 trigger signaling and description for aperiodic CSI-RS trigger provided in embodiments of the present invention

Optionally, the base station may further trigger each CSI-RS resource in the resource pool to perform aperiodic transmission. And the field of the aperiodic CSI-RS trigger domain corresponding to each CSI-RS resource is 1 bit. The number of the CSI-RS resources included in one resource pool is P (P > ═ 1). An alternative aperiodic CSI-RS trigger signaling design is shown in table 5 below, where the trigger signaling in table 5 is only an exemplary trigger signaling design. Other designs for the trigger signaling for aperiodic CSI-RS are not excluded.

Table 5 trigger signaling and description for aperiodic CSI-RS triggering according to embodiments of the present invention

Further, in the second configuration, the base station decouples the triggering of the aperiodic CSI-RS resource from the aperiodic CSI reporting, that is, the aperiodic CSI reporting may be CSI process specific, while the triggering of the aperiodic CSI-RS resource is CSI-RS resource specific, so that the respective corresponding trigger signaling will be different.

In the same way, it is assumed that the triggering signaling of the aperiodic CSI-RS resource is one CSI-RS triggering field domain in the uplink or downlink DCI format of the downlink control channel with 2 bits, and the triggering signaling reported by the aperiodic CSI is one CSI request field domain in the uplink or downlink DCI format of the downlink control channel with 2 bits. The two DCI signaling formats may be designed based on DCI signaling with the same or similar formats, and specific trigger signaling is shown in tables 6 and 7 below. The base station indicates that the current DCI signaling format is the trigger signaling shown in table 6 or table 7 through 1-bit type signaling in the DCI signaling.

Table 6 corresponds to the triggering signaling of the aperiodic CSI-RS, and table 7 corresponds to the triggering signaling reported by the aperiodic CSI. The trigger signaling in either table 6 or table 7 is only one exemplary trigger signaling design. It is not excluded that the trigger signaling for aperiodic CSI-RS or the trigger signaling for aperiodic CSI reporting may have other design forms.

Optionally, the trigger signaling is included in an uplink or downlink DCI format of the PDCCH/EPDCCH, and as configured above, the trigger signaling of the aperiodic CSI-RS is specific to a CSI process or specific to a CSI-RS resource or a CSI-RS resource group.

Table 6 still another trigger signaling and description provided in embodiments of the present invention

Table 7 still another trigger signaling and description provided in embodiments of the present invention

Further, in the third configuration, when aperiodic CSI-RS is supported, CQI calculation and CSI measurement behavior of the UE in periodic or aperiodic CSI reporting may be affected. When the CQI reporting time is a subframe n, the time domain subframe position of a reference measurement reference signal resource based on the CQI is n-n_{CQI_ref}。

n-n_{CQI_ref}Refers to the reference signal transmission time n-n assumed or based on CQI calculation reported at the time n_{CQI_ref}For the case that the reference measurement reference signal resource corresponding to the aperiodic CSI report is the aperiodic CSI-RS resource, n-n_{CQI_ref}So that the reference measurement reference signal transmission time n-n_{CQI_ref}A downlink subframe which is the same as the transmission of the aperiodic CSI request in the uplink control information indication; or n-n_{CQI_ref}So that the reference measurement reference signal transmission time n-n_{CQI_ref}And sending the downlink subframe for the downlink subframe sent by the aperiodic CSI request or the downlink subframe triggered by the aperiodic CSI-RS in the downlink control information indication.

Alternatively, n-n_{CQI_ref}So that the reference measurement reference signal transmission time n-n_{CQI_ref}Sending an S (S) th subframe after a downlink subframe for aperiodic CSI request or triggering of aperiodic CSI-RS in downlink control information indication>1) downlink subframes; or n-n_{CQI_ref}T (T) after downlink subframe transmission for aperiodic CSI request or triggering of aperiodic CSI-RS in downlink control information indication>1) or T downlink subframes. Wherein the size of T depends on the CQI measurement processing time of the UE.

In the embodiment of the present invention, the CQI calculation in aperiodic CSI reporting may be based on aperiodic CSI-RS resources on consecutive T subframes after a downlink subframe where an aperiodic CSI request is sent.

Optionally, the reference measurement reference signal resource on which the aperiodic CSI report is based may also be a CSI-RS resource that is periodically transmitted. When periodic CSI-RS transmission and aperiodic CSI-RS are simultaneously supported, it is necessary to define whether a reference measurement reference signal resource on which a CQI in aperiodic CSI reporting is based is periodic or aperiodic.

In the embodiment of the invention, the periodic CSI reporting is triggered by high-level signaling, the CQI calculation in the periodic CSI reporting can be based on aperiodic CSI-RS resources, if the periodic CSI-RS resources and the aperiodic CSI-RS resources coexist, the sending period of the periodic CSI-RS resources is longer, and the CQI in the periodic CSI reporting can be based on periodic CSI-RS or aperiodic CSI-RS. Similarly, it is necessary to define whether the reference measurement reference signal resource on which the CQI is based in the periodic CSI report is periodic or aperiodic. n-n_{CQI_ref}So that the reference measurement reference signal transmission time n-n_{CQI_ref}And the subframe is a downlink subframe triggered by a latest aperiodic CSI-RS before the periodic CSI reporting time n. For periodic CSI-RS resources, n_{CQI_ref}For one valid downlink subframe greater than or equal to M, n is a valid downlink subframe for aperiodic CSI-RS resource_{CQI_ref}The downlink subframe is a downlink subframe which is more than or equal to N or an effective downlink subframe which is more than or equal to P and is the latest before the CSI reporting time N.

The scheme is characterized by comprising the following steps: when CQI calculation in periodic CSI reporting is based on aperiodic CSI-RS transmission, the n-n_{CQI_ref}So that the reference measurement reference signal transmission time n-n_{CQI_ref}A downlink subframe for sending an aperiodic CSI request or a trigger of an aperiodic CSI-RS in a downlink control information indication;

or said n-n_{CQI_ref}So that the reference measurement reference signal transmission time n-n_{CQI_ref}S (S) th after transmitting downlink subframe for aperiodic CSI request or triggering of aperiodic CSI-RS in downlink control information indication>1) downlink subframes.

Optionally, the n-n_{CQI_ref}So that the reference measurement reference signal transmission time n-n_{CQI_ref}For aperiodic CSI request in the latest downlink control information indicationA downlink subframe for triggered transmission of the aperiodic CSI-RS. Or said n_{CQI_ref}Is a minimum valid downlink subframe equal to or greater than G (e.g., G — 4).

Alternatively, the triggering and dynamic indication of the aperiodic CSI-RS resource may be a method as follows:

and sharing and dynamically switching the CSI-RS resources which are periodically configured among different users at each CSI-RS transmission time in the transmission time sequence of the periodic CSI-RS. The specific implementation process comprises the following steps: the base station sends configuration information of a predefined or preset CSI-RS resource to the user equipment, wherein the configuration information comprises the predefined or preset number of CSI-RS ports, time frequency resource position information and the like. If the CSI-RS resource allowed to be actually transmitted by the user is dynamically changeable, the changed number of CSI-RS resource ports, or location information of time-frequency resource, etc. is further dynamically indicated in the downlink control information by M (M > -1) bits, such as 2-4 bits, in the DCI. If the predefined number of the CSI-RS ports sent periodically is 8, and the number of the CSI-RS ports in actual transmission is any one of 1,2,4 and 8, the number of the ports actually used in the current CSI-RS transmission can be indicated through 2-bit DCI signaling. So that other users can transmit data of the dedicated traffic channel on the vacated CSI-RS resource location. Wherein, the dynamic variation of the CSI-RS resources (such as the number of ports, the location of time-frequency resources, etc.) is limited within the predefined or preset CSI-RS resource range or the CSI-RS resource range implied by the predefined or preset CSI-RS resources. The range of the CSI-RS resource comprises information such as the port number and/or the time-frequency position of the CSI-RS resource. And the implied CSI-RS resource range refers to the extended resource range of the predefined or preset CSI-RS resource. When the number of the predefined CSI-RS ports is 8 and the number of the actually used CSI-RS ports is 4, the 4-port CSI-RS resource is required to be further informed as to which one of two 4-port CSI-RS resources in the predefined 8-port CSI-RS resource is. And if the number of the actually used CSI-RS ports is 2, further informing the CSI-RS resource of the 2 ports which one of four 2-port CSI-RS resources in the predefined 8-port CSI-RS resource. Similarly, if the number of actually used CSI-RS ports is 1, it needs to further notify which one of eight predefined 8-port CSI-RS resources the single-port CSI-RS resource is. In the above example, considering that the number of ports of the CSI-RS resource is to be notified and the configuration information of the CSI-RS resource actually used is to be notified, the number of bits of the dynamic notification signaling of the finally required CSI-RS resource is 5.

The scheme is characterized by comprising the following steps: the base station sends first-stage configuration information of the CSI-RS resource to the user equipment through a high-level signaling, and performs second-stage dynamic notification of the CSI-RS resource based on the first-stage configuration information. The CSI-RS resource in the first-stage configuration information is a predefined or preset CSI-RS resource sent periodically, and the number of ports of the CSI-RS resource sent periodically is fixed. And the CSI-RS resource in the second-stage dynamic notification is a periodic or aperiodic CSI-RS resource which is actually used. Optionally, the signaling of the second-level dynamic notification may be downlink control signaling of layer one. And the signaling of the second-stage dynamic notification comprises a port number condition indication of the CSI-RS resource and/or a configuration indication of the CSI-RS resource under the indicated port number.

In the above scheme, the time-frequency domain resource configuration of the shared periodic CSI-RS is the same for all users. And triggering the corresponding CSI-RS resources of different users at the periodic transmission time point of each CSI-RS resource. For example, at the first transmission time point, the CSI-RS resource of the first user is transmitted, and at the second transmission time point, the CSI-RS resource of the second user is transmitted. And if the port number of the CSI-RS resource actually transmitted by the user I or the user II is not equal to the port number of the configured periodic CSI-RS resource, further notifying other users through DCI signaling so as to enable the other users to carry out rate matching when corresponding data transmission is carried out.

Optionally, there may be K (K > ═ 1) sets of periodic CSI-RS resources sent at each periodic transmission time point, at the transmission time point one, sending the CSI-RS resources of the user one and the user two is performed, at the time point two, sending the CSI-RS resources of the user three and the user four is performed, and if dynamic change of actually sent CSI-RS resources is supported, it is necessary to notify, in the downlink control information, which set of actually used CSI-RS resources is the K set, and also notify the port number of each set of actually used CSI-RS resources. The number of DCI bits required is thus (log2(K) +2) bits.

In the implementation method, the method for binding and triggering the aperiodic CSI-RS transmission and the aperiodic CSI report may also be applied in this embodiment.

Further, in a fourth configuration, the base station defines and configures cell-specific NZP CSI-RS resources and ZP CSI-RS resources.

In the embodiment of the invention, the cell-level NZP CSI-RS resource is characterized by the following two points: 1) semi-statically variable during cell level NZP CSI-RS resource configuration; 2) the cell-level CSI-RS resources are fixed-ported.

Specifically, the configuration method of the cell-level NZP CSI-RS resource comprises the following steps: and the base station is configured together with the ZP CSI-RS resource and informs the UE.

In one example, assuming that the number of ports of the cell-level NZP CSI-RS resource is fixed to 4, the base station may be configured jointly with the 16-bit bitmap indication of the ZP CSI-RS resource of 4 ports.

The base station indicates the cell-level NZP CSI-RS resource allocation of the cell and indicates the ZP CSI-RS resource allocation by using the ZP CSI-RS resource allocation. When the UE demodulates, the cell-level NZP CSI-RS resource allocation of the cell is firstly demodulated, and then the ZP CSI-RS resource allocation is demodulated at other positions.

The 16-bit configuration signaling adopts two-stage CRC coding, wherein 111000001100000 bit indicates NZP CSI-RS resource configuration for CRC 1; 0000000000000011 bit indicates ZP CSI-RS resource configuration for CRC 2.

Optionally, in another implementation method, the base station performs configuration indication of the CSI-RS resource to the user equipment in a two-level signaling notification manner, where the two-level signaling includes a semi-static high-level signaling and a dynamic control signaling. Specifically, the base station firstly informs the user equipment of a first-stage configuration indication of the CSI-RS resource through a high-layer signaling, and then carries out a second-stage dynamic configuration indication of the CSI-RS resource based on the first-stage configuration indication. And the user equipment performs rate matching when transmitting data based on the configuration indication information of the two-stage CSI-RS resources. And the CSI-RS resource in the two-stage signaling notification is a ZP CSI-RS resource or a CSI-IM resource.

Or the base station divides all CSI-RS resources into M groups, and dynamically indicates which group in the M groups the configuration of the CSI-RS resources is. The CSI-RS resource is a ZP CSI-RS resource or a CSI-IM resource. And when the M is equal to 1, the method is equivalent to that the base station dynamically indicates the configuration of the CSI-RS resource through a downlink control signaling, and in the same way, the CSI-RS resource is a ZP CSI-RS resource or a CSI-IM resource.

Therefore, by applying the multiple resource allocation methods, the base station sends the trigger signaling of the reference signal to the user equipment; wherein, the trigger signaling corresponds to a reference signal resource trigger domain field in an uplink or downlink DCI format of a downlink control channel; and the base station sends a reference signal to the user equipment according to the trigger signaling, and the user equipment performs channel measurement and estimation according to the received reference signal. The user equipment performs channel measurement and estimation according to the received trigger signaling whether the reference signal is sent or not and the corresponding reference signal resource, so that the use efficiency of the reference signal resource is improved.

Specifically, the UE receives a trigger signaling of a reference signal sent by a base station, where the trigger signaling is used to indicate whether the base station has sent the reference signal; the triggering signaling corresponds to a reference signal triggering domain field in the downlink control information; UE receives a reference signal sent by a base station according to a trigger signaling; and according to the received trigger signaling and the reference signal, the UE performs channel quality measurement based on the reference signal.

And the base station sends a trigger signaling and a reference signal to the UE according to the various configuration modes, and the UE performs channel quality measurement based on the reference signal after receiving the trigger signaling and the reference signal.

Optionally, the user equipment receives a trigger signaling of a reference signal sent by the base station, and the method further includes:

the triggering signaling of the reference signal indicates the triggering of the CSI request at the same time; or the triggering signaling of the CSI request indicates the triggering of the reference signal at the same time; and the user equipment carries out corresponding CSI reporting according to the trigger signaling.

Optionally, when the reporting time of the CQI in the CSI is subframe n, the subframe of the reference measurement reference signal resource on which the CQI is based is n-n_{CQI_ref}；

n_{CQI_ref}So that the reference measurement reference signal transmission time n-n_{CQI_ref}A downlink subframe which is the same as the CSI request or the triggered transmission of the reference signal; or n_{CQI_ref}So that the reference measurement reference signal transmission time n-n_{CQI_ref}An S (S) th subframe after a transmission subframe being a trigger of a CSI request or the reference signal>1) downlink subframes; or n_{CQI_ref}So that the reference measurement reference signal transmission time n-n_{CQI_ref}T (T) after sending downlink subframe for CSI request or triggering of the reference signal>1) or any one of T subframes.

The methods described in the foregoing embodiments can all implement the resource allocation method, and accordingly, an embodiment of the present invention further provides a resource allocation apparatus for implementing the resource allocation method provided in the foregoing embodiments, as shown in fig. 8, the apparatus includes: and a transmitting unit 810.

A sending unit 810 of the apparatus, configured to send a trigger signaling of a reference signal to a user equipment, where the trigger signaling is used to indicate whether a base station sends the reference signal;

the triggering signaling corresponds to a reference signal resource triggering domain field in the downlink control information;

the sending unit 810 is further configured to send the reference signal resource according to the trigger signaling.

Further, the trigger signaling sent by the sending unit 810 is specific to a channel state information, CSI, process or specific to a reference signal resource group;

Further, the apparatus further comprises:

an indicating unit 820, configured to indicate triggering of CSI request at the same time as the triggering signaling of the reference signal; or the triggering signaling of the CSI request indicates the triggering of the reference signal at the same time;

Further, the length of the reference signal trigger field included in the trigger signaling sent by the sending unit 810 is 1bit or 2 bits.

Further, the sending unit 810 is further configured to send, to the user equipment, trigger type indication signaling, where the trigger type indication signaling is used to indicate whether the current trigger is a trigger of a reference signal or a trigger of a CSI request.

Further, the trigger of the reference signal sent by the sending unit 810 corresponds to a first field indication format, and the trigger of the CSI request indicated by the indication unit corresponds to a second field indication format.

Further, when the reporting time of the channel quality indicator CQI in the CSI is a subframe n, the subframe of a reference measurement reference signal resource on which the CQI is based is n-n_{CQI_ref}；

N is_{CQI_ref}So that the reference measurement reference signal transmission time n-n_{CQI_ref}Is the same downlink subframe as the triggered transmission of the CSI request or the reference signal; or said n_{CQI_ref}So that the reference measurement reference signal transmission time n-n_{CQI_ref}An S (S) th subframe after a triggered transmission subframe for the CSI request or the reference signal>1) downstreamA subframe; or said n-n_{CQI_ref}So that the reference measurement reference signal transmission time n-n_{CQI_ref}T (T) after downlink subframe transmission for the CSI request or the reference signal trigger>1) or any one of T subframes.

Further, the reference signal is a non-zero power reference signal and corresponds to a non-zero power reference signal resource pool;

the device further comprises: a configuring unit 830, configured to adopt the same bitmap indication signaling for the non-zero power reference signal resource pool configuration of the ue and for the zero power reference signal resource configuration of the ue;

Further, the sending unit 810 is further configured to send, to the ue, a configuration signaling of a zero power reference signal through downlink control information, where the configuration signaling is used to indicate configuration information of the zero power reference signal sent by the apparatus.

Further, the sending unit 810 is further configured to send configuration information of a zero power reference signal resource to the user equipment through higher layer signaling.

Correspondingly, an embodiment of the present invention further provides a resource receiving apparatus, configured to implement the resource receiving method provided in the foregoing embodiment, as shown in fig. 9, where the apparatus includes: a receiving unit 910 and a channel measuring unit 920.

A receiving unit 910 of the apparatus, configured to receive a trigger signaling of a reference signal sent by a base station, where the trigger signaling is used to indicate whether the base station sends the reference signal;

the triggering signaling corresponds to a reference signal triggering domain field in the downlink control information;

the receiving unit 910 is further configured to receive the reference signal sent by the base station according to the trigger signaling;

a channel measuring unit 920, configured to perform channel quality measurement of a reference signal according to the trigger signaling and the reference signal.

Further, the trigger signaling of the reference signal received by the receiving unit 910 indicates the triggering of CSI request at the same time; or the triggering signaling of the CSI request indicates the triggering of the reference signal at the same time;

the device further comprises: a reporting unit 930, configured to perform corresponding CSI reporting according to the trigger signaling.

Therefore, by applying the above multiple resource allocation apparatuses, the apparatuses send a trigger signaling of a reference signal to the user equipment; wherein, the trigger signaling corresponds to a reference signal resource trigger field in an uplink DCI format of a downlink control channel; the device sends reference signal resources to the base station according to the trigger signaling, and the user equipment carries out channel measurement and estimation according to the received reference signal resources. The user equipment can receive the corresponding reference signal resource and measure and estimate the channel according to whether the reference signal resource is sent or not indicated by the trigger signaling, so that the use efficiency of the reference signal resource is improved.

In addition, the resource allocation apparatus provided in the embodiment of the present invention may further adopt the following implementation manner to implement the resource allocation method in the foregoing embodiment of the present invention, as shown in fig. 10, where the base station includes: a transmitter 1010, a processor 1020, and a memory 1030.

A transmitter 1010 of the apparatus, configured to send a trigger signaling of a reference signal to a user equipment, where the trigger signaling is used to indicate whether a base station sends the reference signal;

the transmitter 1010 is further configured to transmit the reference signal according to the trigger signaling.

The memory 1030 is used for storing program codes and data of the terminal.

It will be appreciated that fig. 10 only shows a simplified design of a base station. In practice, the base station may comprise any number of transmitters, receivers, processors, controllers, memories, etc., and all base stations that can implement the present invention are within the scope of the present invention.

Further, the trigger signaling sent by the transmitter 1010 is channel state information, CSI, process specific or reference signal resource group specific;

Further, a processor 1020, wherein the trigger signaling for the reference signal indicates triggering of a CSI request; or the triggering signaling of the CSI request indicates the triggering of the reference signal at the same time;

Further, the trigger signaling sent by the transmitter 1010 includes a trigger field length of the reference signal being 1bit or 2 bits.

Further, the transmitter 1010 is further configured to send a trigger type indication signaling to the ue, where the trigger type indication signaling is used to indicate whether the current trigger is a trigger of a reference signal or a trigger of a CSI request.

Further, the trigger of the reference signal sent by the transmitter 1010 corresponds to a first field indication format, and the trigger of the CSI request indicated by the processor corresponds to a second field indication format.

the processor 1020 is further configured to employ the same bitmap indication signaling for the non-zero power reference signal resource pool configuration of the ue and for the zero power reference signal resource configuration of the ue;

Further, the transmitter 1010 is further configured to send, to the user equipment, configuration signaling of a zero power reference signal through downlink control information, where the configuration signaling is used to indicate configuration information of the zero power reference signal sent by the base station.

Further, the transmitter 1010 is further configured to transmit configuration information of a zero power reference signal resource to the user equipment through higher layer signaling.

In addition, the resource receiving apparatus provided in the embodiment of the present invention may further adopt the following implementation manner to implement the resource receiving method in the foregoing embodiment of the present invention, as shown in fig. 11, where the user equipment includes: a receiver 1110, a processor 1120, and a memory 1130.

A receiver 1110 of the apparatus, configured to receive a trigger signaling of a reference signal sent by a base station, where the trigger signaling is used to indicate whether the base station sends the reference signal;

the receiver 1110 is further configured to receive the reference signal sent by the base station according to the trigger signaling;

the processor 1120 is configured to perform reference signal configuration according to the trigger signaling and the reference signal.

The memory 1130 is used to store program codes and data of the terminal.

It will be appreciated that fig. 11 only shows a simplified design of the user equipment. In practical applications, the user equipment may comprise any number of transmitters, receivers, processors, controllers, memories, etc., and all user equipment that can implement the present invention are within the scope of the present invention.

Further, the triggering signaling of the reference signal indicates the triggering of the CSI request at the same time; or the triggering signaling of the CSI request indicates the triggering of the reference signal at the same time; the processor 1120 is further configured to perform corresponding CSI reporting according to the trigger signaling.

Further, whenWhen the reporting time of the channel quality indicator CQI in the CSI is a subframe n, the subframe of a reference measurement reference signal resource based on the CQI is n-n_{CQI_ref}；

Therefore, by applying the base station and the user equipment provided by the embodiment of the invention, the base station sends the trigger signaling of the reference signal to the user equipment; wherein, the trigger signaling corresponds to a reference signal resource trigger domain field in an uplink or downlink DCI format of a downlink control channel; and the base station sends the reference signal resource to the user equipment according to the trigger signaling, and the user equipment receives the corresponding reference signal resource and measures and estimates the channel according to the indication of the trigger signaling. Therefore, the use efficiency of the reference signal resource is greatly improved.

The steps of a method or algorithm described in connection with the disclosure herein may be embodied in hardware or may be embodied in software instructions executed by a processor. The software instructions may consist of corresponding software modules that may be stored in RAM memory, flash memory, ROM memory, EPROM memory, EEPROM memory, registers, a hard disk, a removable disk, a CD-ROM, or any other form of storage medium known in the art. An exemplary storage medium is coupled to the processor such the processor can read information from, and write information to, the storage medium. Of course, the storage medium may also be integral to the processor. The processor and the storage medium may reside in an ASIC. Additionally, the ASIC may reside in user equipment. Of course, the processor and the storage medium may reside as discrete components in user equipment

Those skilled in the art will recognize that, in one or more of the examples described above, the functions described in this invention may be implemented in hardware, software, firmware, or any combination thereof. When implemented in software, the functions may be stored on or transmitted over as one or more instructions or code on a computer-readable medium. Computer-readable media includes both computer storage media and communication media including any medium that facilitates transfer of a computer program from one place to another. A storage media may be any available media that can be accessed by a general purpose or special purpose computer.

The above-mentioned embodiments, objects, technical solutions and advantages of the present invention are further described in detail, it should be understood that the above-mentioned embodiments are only exemplary embodiments of the present invention, and are not intended to limit the scope of the present invention, and any modifications, equivalent substitutions, improvements and the like made on the basis of the technical solutions of the present invention should be included in the scope of the present invention.

Claims

1. A method for resource allocation, the method comprising:

the base station determines corresponding relation indication information between the reference signals of the N ports and the reference signals of the K M ports and determines corresponding relation indication information between the reference signals of the N ports and the reference signals of the L P ports according to the port number N of the reference signals; the mapping relation indication information is used for indicating that the mapping relation is a first mapping relation or a second mapping relation, if the port number N is greater than the port threshold value, the mapping relation is the first mapping relation, and if the port number N is less than or equal to the port threshold value, the mapping relation is the second mapping relation;

a base station sends configuration signaling of a reference signal to user equipment, wherein the number of ports of the reference signal is N, the reference signal of the N port corresponds to reference signals of K M ports and reference signals of at least L P ports, where K > is 1, L > is 1, 1< > is M < N, 1< > is P < N, P is not equal to M, and N is a positive integer greater than or equal to 1;

the configuration signaling includes configuration information of reference signals of the K M ports, correspondence relationship indication information between reference signals of the N port and reference signals of the K M ports, and configuration information of reference signals of the L P ports and correspondence relationship indication information between reference signals of the N port and reference signals of the L P ports;

and the base station transmits the reference signal of the N port to the user equipment according to the configuration signaling.

2. The method according to claim 1, wherein the mapping indication information corresponds to a 1-bit mapping indication information field.

3. The method according to claim 1 or 2, wherein the reference signals of the K M ports include the mapping of the reference signals to resource elements and/or the transmission subframe configuration of the reference signal of each M port, and the configuration information of the reference signals of the L P ports includes the mapping of the reference signals to resource elements and/or the transmission subframe configuration of the reference signal of each P port, so that the ue receives the reference signals of the N port according to the configuration information.

4. The method according to claim 3, wherein the transmission subframe configurations of the reference signals of at least two M-ports or P-ports are different.

5. The method according to claim 1, wherein the configuration signaling further includes an overlap factor and/or a sampling factor of the reference signals of the K M ports.

6. The method according to claim 1, wherein the configuration signaling of the reference signals of the K M ports includes group index indication information of the reference signals of the M ports and indication information of the reference signals within a reference signal resource group;

the reference signals of all M ports are formed by T reference signal groups, each reference signal group is formed by at least one reference signal, wherein T & ltgt & lt 1 & gt; or

wherein the reference signals of all M ports are composed of R reference signal groups, each of which is composed of at least K reference signals, wherein R > is 1.

7. The method according to claim 1, wherein the configuration signaling further includes bitmap indication information, and the bitmap indication information indicates configuration information of reference signals of M ports and/or configuration information of reference signals of P ports which constitute the reference signals of the N ports.

8. The method of claim 7, wherein the reference signal of the M port corresponds to a bitmap indication, and the reference signal of the P port corresponds to a bitmap indication;

9. A resource receiving method, the method comprising:

the method comprises the steps that user equipment receives configuration signaling of a reference signal sent by a base station, the number of ports of the reference signal is N, the reference signal of the N port corresponds to reference signals of K M ports and reference signals of at least L P ports, wherein K > is 1, L > is 1, 1< > M < N, 1< > P < N, P is not equal to M, and N is a positive integer greater than or equal to 1;

the configuration signaling includes configuration information of reference signals of the K M ports, correspondence indication information between reference signals of the N port and reference signals of the K M ports, and configuration information of reference signals of the L P ports and correspondence indication information between reference signals of the N port and reference signals of the L P ports, where the correspondence indication information is used to indicate whether a correspondence is a first mapping relationship or a second mapping relationship; the correspondence indication information between the reference signals of the N ports and the reference signals of the K M ports and the correspondence indication information between the reference signals of the N ports and the reference signals of the L P ports are determined by the base station in advance according to the port number N of the reference signals; if the port number N is greater than the port threshold, the correspondence is a first mapping relationship, and if the port number N is less than or equal to the port threshold, the correspondence is a second mapping relationship;

the user equipment receives a reference signal of an N port sent by the base station according to the configuration signaling;

and according to the configuration signaling and the reference signal, the user equipment receives the reference signal based on the N port and measures the channel quality.

10. A method for resource allocation, the method comprising:

a base station sends a trigger signaling of a reference signal to user equipment, wherein the trigger signaling is used for indicating whether the base station sends the reference signal or not; the reference signals are sent by the base station according to configuration signaling, where the configuration signaling includes configuration information of reference signals of K M ports corresponding to reference signals of an N port, correspondence indication information between the reference signals of the N port and the reference signals of the K M ports, configuration information of reference signals of L P ports corresponding to the reference signals of the N port, and correspondence indication information between the reference signals of the N port and the reference signals of the L P ports, where 1< M < N, 1< P < N, where P is not equal to M, and N is a positive integer greater than or equal to 1;

and the base station transmits the reference signal according to the trigger signaling.

11. The method of claim 10, wherein the trigger signaling is channel state information, CSI, process specific or reference signal resource group specific;

12. The method of claim 10, further comprising:

the triggering signaling of the reference signals simultaneously indicates the triggering of the CSI request; or the like, or, alternatively,

the triggering signaling of the CSI request indicates the triggering of the reference signal at the same time;

13. The method of any one of claims 10-12, wherein the reference signal trigger field is 1-bit or 2-bit in length.

14. The method of any of claims 10-12, wherein the method further comprises: the base station sends a trigger type indication signaling to the user equipment, wherein the trigger type indication signaling is used for indicating whether the current trigger is the trigger of the reference signal or the trigger of the CSI request.

15. The method of claim 14, wherein the trigger for the reference signal corresponds to a first field indication format and the trigger for the CSI request corresponds to a second field indication format.

16. The resource allocation method according to claim 12,

when the reporting time of the channel quality indicator CQI in the CSI is a subframe n, the subframe of a reference measurement reference signal resource based on the CQI is n-n_{CQI_ref}；

N is_{CQI_ref}Satisfy so that reference measures the reference letterNumber transmission time n-n_{CQI_ref}A downlink subframe which is the same as a triggered transmission subframe of the CSI request or the reference signal; or said n_{CQI_ref}So that the reference measurement reference signal transmission time n-n_{CQI_ref}An S-th downlink subframe after a triggered transmission subframe for the CSI request or the reference signal, wherein S>1 is ═ 1; or said n-n_{CQI_ref}So that the reference measurement reference signal transmission time n-n_{CQI_ref}Any one of T subframes or T subframes after the downlink subframe is sent for the CSI request or the reference signal trigger, wherein T is>＝1。

17. The method according to any of claims 10-12, wherein the reference signal is a non-zero power reference signal and corresponds to a non-zero power reference signal resource pool;

the method further comprises the following steps: the base station adopts the same bitmap indication signaling for the non-zero power reference signal resource pool configuration of the user equipment and the zero power reference signal resource configuration of the user equipment;

18. The method of any of claims 10-12, wherein the method further comprises:

the base station sends a configuration signaling of a zero power reference signal to the user equipment through downlink control information, wherein the configuration signaling is used for indicating the configuration information of the zero power reference signal sent by the base station.

19. The method of claim 18, wherein before the base station sends the configuration signaling of the zero power reference signal to the ue through downlink control information, the method further comprises:

and the base station sends the configuration information of the zero power reference signal resource to the user equipment through a high-level signaling.

20. A resource receiving method, the method comprising:

the method comprises the steps that user equipment receives a trigger signaling of a reference signal sent by a base station, wherein the trigger signaling is used for indicating whether the base station sends the reference signal or not; the reference signal is sent by the base station according to a configuration signaling, where the configuration signaling includes configuration information of reference signals of K M ports corresponding to a reference signal of an N port, correspondence indication information between the reference signal of the N port and the reference signals of the K M ports, configuration information of reference signals of L P ports corresponding to the reference signal of the N port, and correspondence indication information between the reference signal of the N port and the reference signals of the L P ports, where 1< M < N, 1< P < N, and P is not equal to M, N is a positive integer greater than or equal to 1, where the correspondence indication information is used to indicate whether a correspondence is a first mapping relationship or a second mapping relationship; the correspondence indication information between the reference signals of the N ports and the reference signals of the K M ports and the correspondence indication information between the reference signals of the N ports and the reference signals of the L P ports are determined by the base station in advance according to the port number N of the reference signals; if the port number N is greater than the port threshold, the correspondence is a first mapping relationship, and if the port number N is less than or equal to the port threshold, the correspondence is a second mapping relationship;

the user equipment receives the reference signal sent by the base station according to the trigger signaling;

and according to the trigger signaling and the reference signal, the user equipment measures the channel quality of the reference signal.

21. The resource receiving method of claim 20, wherein the method further comprises:

and the user equipment carries out corresponding CSI reporting according to the trigger signaling.

22. The resource receiving method as claimed in claim 21,

N is_{CQI_ref}So that the reference measurement reference signal transmission time n-n_{CQI_ref}A downlink subframe which is the same as a triggered transmission subframe of the CSI request or the reference signal; or said n_{CQI_ref}So that the reference measurement reference signal transmission time n-n_{CQI_ref}An S-th downlink subframe after a triggered transmission subframe for the CSI request or the reference signal, wherein S>1 is ═ 1; or said n_{CQI_ref}So that the reference measurement reference signal transmission time n-n_{CQI_ref}Any one of T subframes or T subframes after the downlink subframe is sent for the CSI request or the reference signal trigger, wherein T is>＝1。

23. An apparatus for resource configuration, the apparatus comprising:

the device comprises a determining unit, a judging unit and a judging unit, wherein the determining unit is used for determining corresponding relation indication information between a reference signal of an N port and reference signals of K M ports according to the port number N of the reference signals and determining corresponding relation indication information between the reference signal of the N port and the reference signals of L P ports; the mapping relation indication information is used for indicating that the mapping relation is a first mapping relation or a second mapping relation, if the port number N is greater than the port threshold value, the mapping relation is the first mapping relation, and if the port number N is less than or equal to the port threshold value, the mapping relation is the second mapping relation;

a sending unit, configured to send a configuration signaling of a reference signal to a user equipment, where the number of ports of the reference signal is N, and a reference signal of the N port corresponds to reference signals of K M ports and reference signals of at least L P ports, where K > is 1, L > is 1, 1< > is M < N, 1< > is P < N, and P is not equal to M, and N is a positive integer greater than or equal to 1;

24. The resource configuration apparatus of claim 23,

the corresponding relation indication information included in the configuration signaling sent by the sending unit corresponds to a 1-bit corresponding relation indication information field.

25. The apparatus according to claim 23 or 24, wherein the reference signals of the K M ports include mapping of the reference signals to resource elements and/or transmission subframe configuration of the reference signals of each M port, and the configuration information of the reference signals of the L P ports includes mapping of the reference signals to resource elements and/or transmission subframe configuration of the reference signals of each P port, so that the ue receives the reference signals of the N port according to the configuration information.

26. The apparatus of claim 25, wherein the transmission subframe configurations of the reference signals of at least two M-ports or P-ports are different.

27. The apparatus of claim 23, wherein the configuration signaling sent by the sending unit further includes an overlap factor and/or a sampling factor of the reference signals of the K M ports.

28. The apparatus of claim 23, wherein the configuration signaling of the reference signals of the K M ports comprises group index indication information of the reference signals of the M ports and indication information of the reference signals within a reference signal resource group;

29. The apparatus of claim 23, wherein the configuration signaling sent by the sending unit further includes bitmap indication information, and the bitmap indication information indicates configuration information of a reference signal of an M port and/or configuration information of a reference signal of a P port which constitute the reference signal of the N port.

30. The apparatus according to claim 29, wherein the reference signal of the M-port corresponds to a bitmap indication, and the reference signal of the P-port corresponds to a bitmap indication;

31. An apparatus for receiving a resource, the apparatus comprising:

a receiving unit, configured to receive a configuration signaling of a reference signal sent by a base station, where the number of ports of the reference signal is N, and a reference signal of the N port corresponds to reference signals of K M ports and reference signals of at least L P ports, where K > is 1, L > is 1, 1< > is M < N, 1< > is P < N, and P is not equal to M, and N is a positive integer greater than or equal to 1;

the receiving unit is further configured to receive a reference signal of an N port sent by the base station according to the configuration signaling;

and the channel measuring unit is used for measuring the channel quality of the reference signal based on the N ports according to the configuration signaling and the reference signal.

32. An apparatus for resource configuration, the apparatus comprising:

a sending unit, configured to send a trigger signaling of a reference signal to a user equipment, where the trigger signaling is used to indicate whether a base station sends the reference signal; the reference signals are sent by the base station according to configuration signaling, where the configuration signaling includes configuration information of reference signals of K M ports corresponding to reference signals of an N port, correspondence indication information between the reference signals of the N port and the reference signals of the K M ports, configuration information of reference signals of L P ports corresponding to the reference signals of the N port, and correspondence indication information between the reference signals of the N port and the reference signals of the L P ports, where 1< M < N, 1< P < N, where P is not equal to M, and N is a positive integer greater than or equal to 1;

the sending unit is further configured to send the reference signal according to the trigger signaling.

33. The apparatus for resource configuration according to claim 32, wherein the trigger signaling sent by the sending unit is specific to a channel state information, CSI, process or specific to a reference signal resource group;

34. The apparatus for resource allocation according to claim 32, wherein said apparatus further comprises:

an indication unit, configured to indicate the triggering of the CSI request at the same time as the triggering signaling of the reference signal; or, the triggering signaling of the CSI request indicates the triggering of the reference signal at the same time;

35. The apparatus of any one of claims 32-34, wherein the trigger signaling sent by the sending unit includes the reference signal trigger field with a length of 1bit or 2 bits.

36. The apparatus of any one of claims 32 to 34, wherein the sending unit is further configured to send a trigger type indication signaling to the ue, where the trigger type indication signaling indicates whether the current trigger is a trigger of a reference signal or a trigger of a CSI request.

37. The apparatus of claim 34, wherein the trigger for the reference signal sent by the sending unit corresponds to a first field indication format, and wherein the trigger for the CSI request indicated by the indication unit corresponds to a second field indication format.

38. The apparatus of claim 34, wherein when a reporting time of a Channel Quality Indicator (CQI) in the CSI is a subframe n, a subframe of a reference measurement reference signal resource on which the CQI is based is n-n_{CQI_ref}；

N is_{CQI_ref}So that the reference measurement reference signal transmission time n-n_{CQI_ref}To the CSI request or the reference signalThe downlink subframes with the same number as the triggered sending subframes; or said n_{CQI_ref}So that the reference measurement reference signal transmission time n-n_{CQI_ref}An S-th downlink subframe after a triggered transmission subframe of the CSI request or the reference signal, wherein S>1 is ═ 1; or said n-n_{CQI_ref}So that the reference measurement reference signal transmission time n-n_{CQI_ref}Any one of T subframes or T subframes after the downlink subframe is sent for the CSI request or the reference signal trigger, wherein T is>＝1。

39. The apparatus according to any of claims 32-34, wherein the reference signal is a non-zero power reference signal and corresponds to a non-zero power reference signal resource pool;

the device further comprises: a configuration unit, configured to adopt the same bitmap indication signaling for the non-zero power reference signal resource pool configuration of the ue and for the zero power reference signal resource configuration of the ue;

40. The apparatus for resource configuration according to any of claims 32-34, wherein the sending unit is further configured to send configuration signaling of a zero power reference signal to the ue through downlink control information, where the configuration signaling is used to indicate configuration information of the zero power reference signal sent by the apparatus.

41. The apparatus of claim 40, wherein the sending unit is further configured to send configuration information of zero power reference signal resources to the UE through higher layer signaling.

42. An apparatus for receiving a resource, the apparatus comprising:

a receiving unit, configured to receive a trigger signaling of a reference signal sent by a base station, where the trigger signaling is used to indicate whether the base station sends the reference signal; the reference signal is sent by the base station according to a configuration signaling, where the configuration signaling includes configuration information of reference signals of K M ports corresponding to a reference signal of an N port, correspondence indication information between the reference signal of the N port and the reference signals of the K M ports, configuration information of reference signals of L P ports corresponding to the reference signal of the N port, and correspondence indication information between the reference signal of the N port and the reference signals of the L P ports, where 1< M < N, 1< P < N, and P is not equal to M, N is a positive integer greater than or equal to 1, where the correspondence indication information is used to indicate whether a correspondence is a first mapping relationship or a second mapping relationship; the correspondence indication information between the reference signals of the N ports and the reference signals of the K M ports and the correspondence indication information between the reference signals of the N ports and the reference signals of the L P ports are determined by the base station in advance according to the port number N of the reference signals; if the port number N is greater than the port threshold, the correspondence is a first mapping relationship, and if the port number N is less than or equal to the port threshold, the correspondence is a second mapping relationship;

the receiving unit is further configured to receive the reference signal sent by the base station according to the trigger signaling;

and the channel measuring unit is used for measuring the channel quality of the reference signal according to the trigger signaling and the reference signal.

43. The resource receiving apparatus of claim 42, wherein the triggering signaling of the reference signal received by the receiving unit indicates triggering of CSI request at the same time; or the like, or, alternatively,

the device further comprises: and the reporting unit is used for carrying out corresponding CSI reporting according to the trigger signaling.

44. The apparatus of claim 43, wherein when the reporting time of CQI in the CSI is subframe n, the subframe of the reference SRS resource on which the CQI is based is n-n_{CQI_ref}；

N is_{CQI_ref}So that the reference measurement reference signal transmission time n-n_{CQI_ref}A downlink subframe which is the same as a triggered transmission subframe of the CSI request or the reference signal; or said n_{CQI_ref}So that the reference measurement reference signal transmission time n-n_{CQI_ref}An S-th downlink subframe after a triggered transmission subframe of the CSI request or the reference signal, wherein S>1 is ═ 1; or said n_{CQI_ref}So that the reference measurement reference signal transmission time n-n_{CQI_ref}Any one of T subframes or T subframes after the downlink subframe is sent for the CSI request or the reference signal trigger, wherein T is>＝1。

45. A base station, characterized in that the base station comprises:

at least one processor, configured to determine, according to a port number N of reference signals, correspondence indication information between reference signals of the N port and reference signals of K M ports, and determine correspondence indication information between reference signals of the N port and reference signals of L P ports; the mapping relation indication information is used for indicating that the mapping relation is a first mapping relation or a second mapping relation, if the port number N is greater than the port threshold value, the mapping relation is the first mapping relation, and if the port number N is less than or equal to the port threshold value, the mapping relation is the second mapping relation;

a transmitter, configured to send configuration signaling of a reference signal to a user equipment, where the number of ports of the reference signal is N, and a reference signal of the N port corresponds to reference signals of K M ports and reference signals of at least L P ports, where K > is 1, L > is 1, 1< ═ M < N, 1< ═ P < N, and P is not equal to M, and N is a positive integer greater than or equal to 1;

the transmitter is further configured to send a reference signal of an N port to the user equipment according to the configuration signaling.

46. The BS of claim 45, wherein the configuration signaling sent by the transmitter includes the corresponding relation indication information corresponding to a 1-bit corresponding relation indication information field; the corresponding relation indication information field is used for indicating that the corresponding relation is a first mapping relation or a second mapping relation.

47. The BS of claim 45 or 46, wherein the reference signals of K M-ports comprise the mapping of the reference signals to resource elements and/or the transmission subframe configuration of the reference signals of each M-port, and the configuration information of the reference signals of L P-ports comprises the mapping of the reference signals to resource elements and/or the transmission subframe configuration of the reference signals of each P-port, so that the UE performs the receiving of the reference signals of N-port according to the configuration information.

48. The base station of claim 45, wherein the transmission subframe configurations of the reference signals of at least two M-ports or P-ports are different.

49. The base station of claim 45, wherein the configuration signaling sent by the transmitter further comprises an overlap factor and/or a sampling factor of the reference signals of the K M ports.

50. The base station of claim 45, wherein the configuration signaling of the reference signals of the K M ports comprises group index indication information of the reference signals of the M ports and indication information of the reference signals in a reference signal resource group;

51. The base station according to claim 45, wherein the configuration signaling sent by the transmitter further comprises bitmap indication information indicating configuration information of reference signals of M ports and/or configuration information of reference signals of P ports constituting the reference signals of N ports.

52. The base station of claim 51, wherein the M-port reference signal corresponds to a bitmap indication and the P-port reference signal corresponds to a bitmap indication;

53. A user equipment, the user equipment comprising:

a receiver, configured to receive a configuration signaling of a reference signal sent by a base station, where the number of ports of the reference signal is N, and a reference signal of the N port corresponds to reference signals of K M ports and reference signals of at least L P ports, where K > is 1, L > is 1, 1< > is M < N, 1< > is P < N, and P is not equal to M, and N is a positive integer greater than or equal to 1;

the receiver is further configured to receive a reference signal of an N port sent by the base station according to the configuration signaling;

at least one processor, configured to perform channel quality measurement of reference signals of N ports according to the configuration signaling and the reference signals.

54. A base station, characterized in that the base station comprises:

a transmitter, configured to send a trigger signaling of a reference signal to a user equipment, where the trigger signaling is used to indicate whether a base station sends the reference signal; the reference signals are sent by the base station according to configuration signaling, where the configuration signaling includes configuration information of reference signals of K M ports corresponding to reference signals of an N port, correspondence indication information between the reference signals of the N port and the reference signals of the K M ports, configuration information of reference signals of L P ports corresponding to the reference signals of the N port, and correspondence indication information between the reference signals of the N port and the reference signals of the L P ports, where 1< M < N, 1< P < N, where P is not equal to M, and N is a positive integer greater than or equal to 1;

the transmitter is further configured to transmit the reference signal according to the trigger signaling.

55. The base station of claim 54, wherein the trigger signaling sent by the transmitter is Channel State Information (CSI) process specific or reference signal resource group specific;

the CSI process-specific trigger signaling refers to that all reference signals in the CSI process are triggered, the reference signal resource-specific trigger signaling refers to that each reference signal in the CSI process is triggered respectively, and the reference signal resource group-specific trigger signaling refers to that the reference signal resource in each reference signal resource group in the CSI process is triggered.

56. The base station of claim 54, wherein the at least one processor is further configured to signal the trigger of the reference signal to indicate the trigger of the CSI request; or, the triggering signaling of the CSI request indicates the triggering of the reference signal at the same time;

57. The base station according to any of claims 54-56, wherein the trigger signaling sent by the transmitter comprises the reference signal trigger field having a length of 1bit or 2 bits.

58. The base station according to any of claims 54-56, wherein the transmitter is further configured to send a trigger type indication signaling to the UE, wherein the trigger type indication signaling indicates whether the current trigger is a trigger of a reference signal or a trigger of a CSI request.

59. The base station of claim 58, wherein the reference signal trigger sent by the transmitter corresponds to a first field indication format and the CSI request trigger indicated by the processor corresponds to a second field indication format.

60. The base station of claim 56,

N is_{CQI_ref}So that the reference measurement reference signal transmission time n-n_{CQI_ref}A downlink subframe which is the same as a triggered transmission subframe of the CSI request or the reference signal; or said n_{CQI_ref}So that the reference measurement reference signal transmission time n-n_{CQI_ref}An S-th downlink subframe after a triggered transmission subframe of the CSI request or the reference signal, wherein S>1 is ═ 1; or said n-n_{CQI_ref}So that the reference measurement reference signal transmission time n-n_{CQI_ref}Touching for the CSI request or the reference signalSending any one of T subframes or T subframes after the downlink subframe, wherein T>＝1。

61. The base station of claim 54, wherein the reference signal is a non-zero power reference signal and corresponds to a non-zero power reference signal resource pool;

the processor is further configured to employ the same bitmap indication signaling for the non-zero power reference signal resource pool configuration of the ue and for the zero power reference signal resource configuration of the ue;

62. The base station according to any of claims 54-56, wherein the transmitter is further configured to send configuration signaling of a zero power reference signal to the UE through downlink control information, and the configuration signaling is used to indicate configuration information of a zero power reference signal sent by the base station.

63. The base station of claim 62, wherein the transmitter is further configured to send configuration information of zero power reference signal resources to the UE through higher layer signaling.

64. A user equipment, the user equipment comprising:

the receiver is used for receiving a trigger signaling of a reference signal sent by a base station, wherein the trigger signaling is used for indicating whether the base station sends the reference signal or not; the reference signal is sent by the base station according to a configuration signaling, where the configuration signaling includes configuration information of reference signals of K M ports corresponding to a reference signal of an N port, correspondence indication information between the reference signal of the N port and the reference signals of the K M ports, configuration information of reference signals of L P ports corresponding to the reference signal of the N port, and correspondence indication information between the reference signal of the N port and the reference signals of the L P ports, where 1< M < N, 1< P < N, and P is not equal to M, N is a positive integer greater than or equal to 1, where the correspondence indication information is used to indicate whether a correspondence is a first mapping relationship or a second mapping relationship; the correspondence indication information between the reference signals of the N ports and the reference signals of the K M ports and the correspondence indication information between the reference signals of the N ports and the reference signals of the L P ports are determined by the base station in advance according to the port number N of the reference signals; if the port number N is greater than the port threshold, the correspondence is a first mapping relationship, and if the port number N is less than or equal to the port threshold, the correspondence is a second mapping relationship;

the receiver is further configured to receive the reference signal sent by the base station according to the trigger signaling;

and the at least one processor is used for measuring the channel quality of the reference signal according to the trigger signaling and the reference signal.

65. The user equipment of claim 64, the triggering signaling of the reference signals simultaneously indicates triggering of CSI requests, or the triggering signaling of CSI requests simultaneously indicates triggering of the reference signals; and the processor is further configured to perform corresponding CSI reporting according to the trigger signaling.

66. The UE of claim 65, wherein when a reporting time of a CQI in the CSI is a subframe n, a subframe of a reference sounding reference signal resource on which the CQI is based is n-n_{CQI_ref}；

N is_{CQI_ref}So that the reference measurement reference signal transmission time n-n_{CQI_ref}Is the same as a triggered transmission subframe of the CSI request or the reference signalA downlink subframe; or said n_{CQI_ref}So that the reference measurement reference signal transmission time n-n_{CQI_ref}An S-th downlink subframe after a triggered transmission subframe of the CSI request or the reference signal, wherein S>1 is ═ 1; or said n_{CQI_ref}So that the reference measurement reference signal transmission time n-n_{CQI_ref}Any one of T subframes or T subframes after the downlink subframe is sent for the CSI request or the reference signal trigger, wherein T is>＝1。