CN109150435B

CN109150435B - CSI-RS configuration method and device, storage medium, base station and terminal

Info

Publication number: CN109150435B
Application number: CN201710456034.5A
Authority: CN
Inventors: 周化雨
Original assignee: Spreadtrum Communications Shanghai Co Ltd
Current assignee: Spreadtrum Communications Shanghai Co Ltd
Priority date: 2017-06-16
Filing date: 2017-06-16
Publication date: 2021-05-18
Anticipated expiration: 2037-06-16
Also published as: CN109150435A

Abstract

A CSI-RS configuration method and device, a storage medium, a base station and a terminal are provided, the method comprises the following steps: configuring and sending bandwidth part information of a synchronization signal block to user equipment, wherein the bandwidth part information of the synchronization signal block at least comprises an identifier of a bandwidth part where the synchronization signal block is located; determining one or more items in the corresponding relationship between the attributes of the CSI-RS and the attributes of the synchronization signal block as a preset default corresponding relationship, and configuring and sending the corresponding relationship of the remaining items except the one or more items to the user equipment, so that the user equipment determines the attributes of the CSI-RS according to the bandwidth part information of the synchronization signal block, the default corresponding relationship and the corresponding relationship of the remaining items. The scheme of the invention can enable the user equipment to determine the attribute of the CSI-RS by enabling the base station to send less signaling, thereby realizing the efficient configuration of the CSI-RS.

Description

CSI-RS configuration method and device, storage medium, base station and terminal

Technical Field

The present invention relates to the field of communications technologies, and in particular, to a CSI-RS configuration method and apparatus, a storage medium, a base station, and a terminal.

Background

In 5G systems, the synchronization signal, the physical broadcast channel, is transmitted in synchronization signal blocks (SS-blocks). Each synchronization signal block can be regarded as a resource of one beam (analog domain) in a beam sweeping (beam sweeping) process, i.e., a process in which the synchronization signal block is repeatedly transmitted on different beams. By performing blind detection on the synchronization signal block, the user equipment can determine the attribute of the synchronization signal block. The synchronization signal block may be used to implement time frequency synchronization, Radio Resource Management (RRM) measurement, beam Management, and other functions.

In the existing 5G technology, a single carrier can be divided into multiple Bandwidth parts (Bandwidth parts), also called Sub-bands, in the frequency domain. The base station performs single or multiple repeated configuration on one of the bandwidth parts for one synchronization signal block, and then transmits the synchronization signal block to the user equipment. In the case of multiple synchronization signal blocks, multiple bandwidth portions within a single carrier all have synchronization signal blocks.

In addition, the base station may configure a Channel State Information Reference Signal (CSI-RS) for the ue on multiple bandwidth parts, where the CSI-RS may be used to implement time-frequency synchronization, RRM measurement, beam management, and other functions. Since the CSI-RS and the synchronization signal block have similar characteristics and functions, the transmission densities of the CSI-RS and the synchronization signal block in the time domain and the frequency domain are also similar, and the base station can only transmit the synchronization signal block or only transmit the CSI-RS in a certain bandwidth portion, thereby saving transmission resources. Compared with the synchronous signal block, the CSI-RS has shorter signal length and occupies less resources, thereby being beneficial to transmitting more data signals in the bandwidth part.

However, in the prior art, since the CSI-RS does not support blind detection, the base station needs to inform the user equipment of the attributes of the CSI-RS through signaling, such as the appearance period of the CSI-RS, the number of repetitions of the CSI-RS in each appearance period, the signal starting point of the CSI-RS, and the frequency domain position of the CSI-RS. When the bandwidth part needing to configure the CSI-RS is more, the signaling overhead is larger.

Disclosure of Invention

The technical problem to be solved by the invention is to provide a CSI-RS configuration method and device, a storage medium, a base station and a terminal, which can enable user equipment to determine the attribute of CSI-RS by enabling the base station to send less signaling, thereby realizing the efficient configuration of the CSI-RS.

To solve the foregoing technical problem, an embodiment of the present invention provides a CSI-RS configuration method, including the following steps: configuring and sending bandwidth part information of a synchronization signal block to user equipment, wherein the bandwidth part information of the synchronization signal block at least comprises an identifier of a bandwidth part where the synchronization signal block is located; determining one or more items in the corresponding relationship between the attributes of the CSI-RS and the attributes of the synchronization signal block as a preset default corresponding relationship, and configuring and sending the corresponding relationship of the remaining items except the one or more items to the user equipment, so that the user equipment determines the attributes of the CSI-RS according to the bandwidth part information of the synchronization signal block, the default corresponding relationship and the corresponding relationship of the remaining items.

Optionally, the correspondence between the attribute of the CSI-RS and the attribute of the synchronization signal block includes: the corresponding relation between the appearance period of the CSI-RS and the appearance period of the synchronous signal block; the number of repetitions of the CSI-RS corresponding to the synchronization signal block in an appearance period of each synchronization signal block; a time offset between a signal start point of the synchronization signal block and a signal start point of the CSI-RS; an offset of a frequency domain position of the CSI-RS from a frequency domain position of the synchronization signal block.

Optionally, the default correspondence includes one or more of the following: the appearance period of the CSI-RS and the appearance period of the synchronous signal block have a preset multiple relation; the number of repetitions of the CSI-RS corresponding to the synchronization signal block in an appearance period of each synchronization signal block; the signal starting point of the synchronous signal block and the signal starting point of the CSI-RS have a preset time offset; the frequency domain position of the CSI-RS and the frequency domain position of the synchronization signal block have a preset offset.

Optionally, the preset multiple relationship between the appearance period of the CSI-RS and the appearance period of the synchronization signal block includes: the appearance period of the CSI-RS is the same as that of the synchronization signal block.

Optionally, the number of repetitions of the CSI-RS corresponding to the synchronization signal block in the occurrence period of each synchronization signal block includes: and in the occurrence period of each synchronous signal block, the synchronous signal block corresponds to one CSI-RS.

Optionally, the signal start point of the synchronization signal block and the signal start point of the CSI-RS have a preset time offset selected from: the signal starting point of the synchronous signal block is consistent with the signal starting point of the CSI-RS; the signal starting point of the synchronous signal block and the signal starting point of the CSI-RS have fixed time offset; the signal starting point of the CSI-RS is consistent with the signal starting point of a main synchronizing signal in the synchronizing signal block; the signal starting point of the CSI-RS is consistent with the signal starting point of the auxiliary synchronizing signal in the synchronizing signal block; the signal start point of the CSI-RS coincides with a signal start point of a physical broadcast channel in the synchronization signal block.

Optionally, the CSI-RS configuration method further includes: configuring and transmitting to the user equipment whether the CSI-RS is activated or deactivated through MAC signaling or DCI signaling.

Optionally, the CSI-RS configuration method further includes: and if the time-frequency position of the CSI-RS is consistent with the time-frequency position of the synchronous signal block, only transmitting the synchronous signal block.

Optionally, the CSI-RS configuration method further includes: and if the time-frequency position of the CSI-RS and the time-frequency position of the synchronous signal block have an overlapping part, configuring and sending the CSI-RS to the user equipment on resources outside the overlapping part within the time-frequency position of the CSI-RS.

To solve the foregoing technical problem, an embodiment of the present invention provides a CSI-RS configuration method, including the following steps: receiving bandwidth part information of a synchronization signal block from a base station; receiving, from a base station, a correspondence of the remaining items other than one or more items among the correspondence between the attributes of the CSI-RS and the attributes of the synchronization signal block; determining the attribute of the synchronization signal block according to the bandwidth part information of the synchronization signal block; determining the attribute of the CSI-RS according to the attribute of the synchronization signal block, the default corresponding relation of the one or more items and the corresponding relation of the other items; wherein the one or more default correspondences are used to indicate that one or more of the correspondences between the attributes of the CSI-RS and the attributes of the synchronization signal block are preset default correspondences, and the bandwidth part information of the synchronization signal block at least includes an identifier of a bandwidth part where the synchronization signal block is located.

Optionally, the CSI-RS configuration method further includes: receiving, from the base station, whether the CSI-RS is activated or deactivated through a MAC instruction or a DCI instruction.

Optionally, the CSI-RS configuration method further includes: and if the time-frequency position of the CSI-RS is consistent with the time-frequency position of the synchronous signal block, only receiving the synchronous signal block from a base station.

Optionally, the CSI-RS configuration method further includes: and if the time-frequency position of the CSI-RS and the time-frequency position of the synchronous signal block have an overlapping part, receiving the CSI-RS from a base station on resources outside the overlapping part within the time-frequency position of the CSI-RS.

To solve the foregoing technical problem, an embodiment of the present invention provides a CSI-RS configuration apparatus, including: a synchronization signal block configuration module, adapted to configure and send bandwidth part information of a synchronization signal block to a user equipment, where the bandwidth part information of the synchronization signal block at least includes an identifier of a bandwidth part where the synchronization signal block is located; a corresponding relation configuration module, adapted to determine that one or more items of corresponding relations between the attributes of the CSI-RS and the attributes of the synchronization signal block are preset default corresponding relations, configure and send corresponding relations of the remaining items except the one or more items to the user equipment, so that the user equipment determines the attributes of the CSI-RS according to the bandwidth part information of the synchronization signal block, the default corresponding relations, and the corresponding relations of the remaining items.

To solve the foregoing technical problem, an embodiment of the present invention provides a CSI-RS configuration apparatus, including: a synchronization signal block information receiving module adapted to receive bandwidth part information of a synchronization signal block from a base station; a correspondence receiving module adapted to receive, from a base station, a correspondence of the remaining items other than one or more items among the correspondence between the attributes of the CSI-RS and the attributes of the synchronization signal block; a synchronization signal block determination module adapted to determine an attribute of the synchronization signal block according to bandwidth part information of the synchronization signal block; a CSI-RS determining module adapted to determine an attribute of the CSI-RS according to the attribute of the synchronization signal block, the default correspondence of the one or more items, and the correspondence of the remaining items; wherein the one or more default correspondences are used to indicate that one or more of the correspondences between the attributes of the CSI-RS and the attributes of the synchronization signal block are preset default correspondences, and the bandwidth part information of the synchronization signal block at least includes an identifier of a bandwidth part where the synchronization signal block is located.

To solve the above technical problem, an embodiment of the present invention provides a computer-readable storage medium, on which computer instructions are stored, and the computer instructions, when executed, perform the steps of the CSI-RS configuration method.

In order to solve the above technical problem, an embodiment of the present invention provides a base station, including a memory and a processor, where the memory stores computer instructions capable of being executed on the processor, and the processor executes the steps of the CSI-RS configuration method when executing the computer instructions.

In order to solve the above technical problem, an embodiment of the present invention provides a terminal, including a memory and a processor, where the memory stores computer instructions capable of being executed on the processor, and the processor executes the steps of the CSI-RS configuration method when executing the computer instructions.

Compared with the prior art, the technical scheme of the embodiment of the invention has the following beneficial effects:

in the embodiment of the invention, bandwidth part information of a synchronization signal block is configured and sent to user equipment, wherein the bandwidth part information of the synchronization signal block at least comprises an identifier of a bandwidth part where the synchronization signal block is located; determining one or more items in the corresponding relationship between the attributes of the CSI-RS and the attributes of the synchronization signal block as a preset default corresponding relationship, and configuring and sending the corresponding relationship of the remaining items except the one or more items to the user equipment, so that the user equipment determines the attributes of the CSI-RS according to the bandwidth part information of the synchronization signal block, the default corresponding relationship and the corresponding relationship of the remaining items. By adopting the scheme, the user equipment can determine the attribute of the CSI-RS according to the attribute of the synchronizing signal block according to the corresponding relationship between the attribute of the synchronizing signal block and the attribute of the CSI-RS, and can send the corresponding relationship of other items except the one or more items by adopting less signaling overhead through presetting one or more items in the corresponding relationship between the attribute of the CSI-RS and the attribute of the synchronizing signal block as the default corresponding relationship, and determine the attribute of the CSI-RS according to the bandwidth part information of the synchronizing signal block, the default corresponding relationship and the corresponding relationship of the other items. By adopting the scheme of the embodiment of the invention, the base station can send less signaling overhead to ensure that the user equipment determines the attribute of the CSI-RS, thereby realizing the efficient configuration of the CSI-RS.

Further, in the embodiment of the present invention, a plurality of default correspondence relationships may be set, and the more detailed the number of the set items is, the more beneficial the base station reduces the content sent to the user equipment, thereby saving more signaling overhead.

Further, if the time-frequency position of the CSI-RS is consistent with the time-frequency position of the synchronization signal block, only the synchronization signal block is sent. In the embodiment of the invention, because the characteristics and functions of the CSI-RS and the synchronizing signal block are similar, the base station can only send the synchronizing signal block or only send the CSI-RS on a single bandwidth part, and when the synchronizing signal block and the CSI-RS are configured on the same time-frequency position, the base station can only send the synchronizing signal block so as to save transmission resources.

Further, if the time-frequency position of the CSI-RS and the time-frequency position of the synchronization signal block have an overlapping part, configuring and transmitting the CSI-RS to the user equipment on resources outside the overlapping part within the time-frequency position of the CSI-RS. In the embodiment of the invention, the CSI-RS can be configured and sent on the resources except the overlapped part by configuring and sending the synchronizing signal block on the resources of the overlapped part, thereby more finely realizing the functions of time-frequency synchronization, RRM measurement, beam management and the like.

Drawings

Fig. 1 is a flowchart of a CSI-RS configuration method according to an embodiment of the present invention;

fig. 2 is a data flow diagram of a CSI-RS configuration method according to an embodiment of the present invention;

fig. 3 is a data flow diagram of another CSI-RS configuration method according to an embodiment of the present invention;

fig. 4 is a flowchart of another CSI-RS configuration method according to an embodiment of the present invention;

fig. 5 is a data flow diagram of another CSI-RS configuration method according to an embodiment of the present invention;

fig. 6 is a data flow diagram of another CSI-RS configuration method according to an embodiment of the present invention;

fig. 7 is a schematic structural diagram of a CSI-RS configuration apparatus according to an embodiment of the present invention;

fig. 8 is a schematic structural diagram of another CSI-RS configuration apparatus according to an embodiment of the present invention;

fig. 9 is a schematic diagram of a correspondence relationship between an attribute of a CSI-RS and an attribute of a synchronization signal block in an embodiment of the present invention.

Detailed Description

In the 5G system, a Synchronization Signal and a Physical Broadcast Channel are transmitted in a Synchronization Signal block, and a Primary Synchronization Signal (PSS), a Secondary Synchronization Signal (SSS), and a Physical Broadcast Channel (PBCH) are in the Synchronization Signal block. A plurality of synchronization signal blocks constitute a synchronization signal burst (SS-burst), which can be viewed as a relatively centralized block of resources that contains multiple beams. The plurality of synchronization signal bursts form a set of synchronization signal bursts (SS-burst-set). Through the training of scanning the beams, the user equipment can perceive the strongest signal on which beam. Further, the base station may configure the CSI-RS for the user equipment on multiple bandwidth parts.

In the prior art, the base station needs to inform the user equipment of the attributes of the CSI-RS, such as the appearance period of the CSI-RS, the number of repetitions of the CSI-RS in each appearance period, the signal starting point of the CSI-RS, and the frequency domain position of the CSI-RS, through signaling. When the bandwidth part needing to configure the CSI-RS is more, the signaling overhead is larger.

The inventor of the present invention finds, through research, that the characteristics and functions of the CSI-RS and the synchronization signal block are similar, and the transmission densities of the CSI-RS and the synchronization signal block in the time domain and the frequency domain are also similar, so that a user can determine the attribute of the CSI-RS according to the attribute of the synchronization signal block according to the corresponding relationship between the attribute of the CSI-RS and the attribute of the synchronization signal block.

In the embodiment of the invention, bandwidth part information of a synchronization signal block is configured and sent to user equipment, wherein the bandwidth part information of the synchronization signal block at least comprises an identifier of a bandwidth part where the synchronization signal block is located; determining one or more items in the corresponding relationship between the attributes of the CSI-RS and the attributes of the synchronization signal block as a preset default corresponding relationship, and configuring and sending the corresponding relationship of the remaining items except the one or more items to the user equipment, so that the user equipment determines the attributes of the CSI-RS according to the bandwidth part information of the synchronization signal block, the default corresponding relationship and the corresponding relationship of the remaining items. By adopting the scheme, the user can determine the attribute of the CSI-RS according to the attribute of the synchronizing signal block according to the corresponding relationship between the attribute of the synchronizing signal block and the attribute of the CSI-RS, and the corresponding relationship of other items except the one or more items is sent by adopting less signaling overhead by presetting one or more items in the corresponding relationship between the attribute of the CSI-RS and the attribute of the synchronizing signal block as the default corresponding relationship, so that the user equipment determines the attribute of the CSI-RS according to the bandwidth part information of the synchronizing signal block, the default corresponding relationship and the corresponding relationship of the other items. By adopting the scheme of the embodiment of the invention, the base station can send less signaling overhead to ensure that the user equipment determines the attribute of the CSI-RS, thereby realizing the efficient configuration of the CSI-RS.

In order to make the aforementioned objects, features and advantages of the present invention comprehensible, embodiments accompanied with figures are described in detail below.

Referring to fig. 1, fig. 1 is a flowchart of a CSI-RS configuration method according to an embodiment of the present invention. The CSI-RS configuration method may be applied to a base station, and may include steps S11 to S12:

step S11: configuring and sending bandwidth part information of a synchronization signal block to user equipment, wherein the bandwidth part information of the synchronization signal block at least comprises an identifier of a bandwidth part where the synchronization signal block is located;

step S12: determining one or more items in the corresponding relationship between the attributes of the CSI-RS and the attributes of the synchronization signal block as a preset default corresponding relationship, and configuring and sending the corresponding relationship of the remaining items except the one or more items to the user equipment, so that the user equipment determines the attributes of the CSI-RS according to the bandwidth part information of the synchronization signal block, the default corresponding relationship and the corresponding relationship of the remaining items.

In a specific implementation of step S11, the base station configures and sends bandwidth part information of a synchronization signal block to the user equipment, where the bandwidth part information of the synchronization signal block is used to indicate a bandwidth part where the synchronization signal block is located, and at least includes an identifier of the bandwidth part where the synchronization signal block is located.

It should be noted that the base station may further configure and send bandwidth part information of the CSI-RS to the user equipment, where the bandwidth part information of the CSI-RS at least includes an identifier of a bandwidth part where the CSI-RS is located, so that the user equipment may directly determine the bandwidth part where the CSI-RS is located.

In a specific implementation of step S12, the base station may preset one or more of the correspondences between the attributes of the CSI-RS and the attributes of the synchronization signal block as default correspondences.

It should be noted that the CSI-RS indicates a downlink reference signal used by the user equipment to perform beam measurement, RRM measurement, and the like. One CSI-RS may refer to one CSI-RS resource or one CSI-RS configuration. In the embodiment of the present invention, a naming method of the CSI-RS in a 5G New Radio (NR) system is not limited.

Wherein the attributes of the CSI-RS may include: the occurrence period of the CSI-RS, the number of repeated CSI-RS in each occurrence period, the signal starting point of the CSI-RS and the time-frequency position of the CSI-RS; the properties of the synchronization signal block may include: the occurrence period of the synchronization signal block, the number of repetitions of the synchronization signal block in each occurrence period, the signal start point of the synchronization signal block, and the time-frequency position of the synchronization signal block

It should be noted that the time domain position of the CSI-RS can be determined by the appearance period of the CSI-RS, the number of repetitions of the CSI-RS in each appearance period, and the signal starting point of the CSI-RS; and the time-frequency position of the CSI-RS can be determined by combining the frequency-domain position of the CSI-RS.

Specifically, the correspondence between the attribute of the CSI-RS and the attribute of the synchronization signal block may include: the corresponding relation between the appearance period of the CSI-RS and the appearance period of the synchronous signal block; the number of repetitions of the CSI-RS corresponding to the synchronization signal block in an appearance period of each synchronization signal block; a time offset between a signal start point of the synchronization signal block and a signal start point of the CSI-RS; an offset of a frequency domain position of the CSI-RS from a frequency domain position of the synchronization signal block.

Further, the appearance period of the CSI-RS may be the same as or in a multiple relationship with the appearance period of the synchronization signal block. Specifically, the multiple appearance periods of the CSI-RS correspond to the duration corresponding to each appearance period of the synchronization signal block, or the multiple appearance periods of the synchronization signal block correspond to the duration corresponding to each appearance period of the CSI-RS.

The number of repetitions of the CSI-RS corresponding to the synchronization signal block in the occurrence period of each synchronization signal block may be used to indicate how many repetitions of the CSI-RS correspond to a single synchronization signal block in a duration corresponding to the occurrence period of each synchronization signal block.

The signal start point of the synchronization signal block and the signal start point of the CSI-RS have a preset time offset, which may be used to indicate whether the signal start point of the synchronization signal block and the signal start point of the CSI-RS have a deviation in a time domain, and may also be used to indicate a value of the deviation when there is a deviation.

The frequency domain position of the CSI-RS and the frequency domain position of the synchronization signal block have a preset offset, which may be used to indicate whether the synchronization signal block and the CSI-RS have a deviation in the frequency domain, and may also be used to indicate a value of the deviation when there is a deviation.

In a specific implementation, the default correspondence may include one or more of the following items, which are described below.

The default correspondence may include that the appearance period of the CSI-RS has a preset multiple relationship with the appearance period of the synchronization signal block.

Further, the appearance period of the CSI-RS may be set to be the same as the appearance period of the synchronization signal block. Thereby reducing the complexity of determining the properties of the CSI-RS by the properties of the synchronization signal block.

The default correspondence may include a number of repetitions of the CSI-RS corresponding to each synchronization signal block in an occurrence period of the synchronization signal block.

Further, it may be set that the synchronization signal block corresponds to one of the CSI-RSs within an occurrence period of each synchronization signal block. Thereby reducing the complexity of determining the properties of the CSI-RS by the properties of the synchronization signal block.

The default correspondence may include that a signal start point of the synchronization signal block and a signal start point of the CSI-RS have a preset time offset.

Further, it may be set that a signal start point of the synchronization signal block coincides with a signal start point of the CSI-RS. Thereby reducing the complexity of determining the properties of the CSI-RS by the properties of the synchronization signal block.

It may also be set that the signal start point of the synchronization signal block and the signal start point of the CSI-RS have a fixed time offset, for example, 2symbols, so that the signal start point of the CSI-RS can be determined by the signal start point of the synchronization signal block and the time offset.

The signal starting point of the CSI-RS may be set to coincide with the signal starting point of the primary synchronization signal in the synchronization signal block, so that the signal starting point of the CSI-RS may be determined by the signal starting point of the primary synchronization signal in the synchronization signal block. By adopting the scheme of the embodiment of the invention, the signal starting point of the CSI-RS can be determined by setting the main synchronous signal in the synchronous signal block as a reference object, so that the influence on the determination of the signal starting point of the CSI-RS is avoided when the sequence or the signal length of the main synchronous signal, the auxiliary synchronous signal and the physical broadcast channel in the synchronous signal block is changed.

Similarly, the CSI-RS signal start point may be set to be consistent with the signal start point of the secondary synchronization signal in the synchronization signal block, or the CSI-RS signal start point may be set to be consistent with the signal start point of the physical broadcast channel in the synchronization signal block.

The default correspondence may include that the frequency domain position of the CSI-RS has a preset offset from the frequency domain position of the synchronization signal block.

In the embodiment of the present invention, a plurality of default correspondence relationships may be set, and the more detailed the number of the set items is, the more beneficial the base station reduces the content sent to the user equipment, thereby saving more signaling overhead.

In a specific implementation, the base station may determine one or more of the correspondence between the attributes of the CSI-RS and the synchronization signal block as a preset default correspondence, so as to configure and send the correspondence of the remaining items except the one or more items to the user equipment.

Further, the user equipment determines the attribute of the CSI-RS according to the bandwidth part information of the synchronization signal block, the default correspondence, and the correspondence of the remaining items. Specifically, since the user equipment already knows the content of the default correspondence, for example, the content is obtained according to a protocol, the user equipment may determine the correspondence of the one or more items that are not received according to the default correspondence, so as to determine the correspondence of all items. And determining the attribute of the CSI-RS according to the bandwidth part information of the synchronous signal block and the corresponding relation of all the items.

It is noted that the user equipment may determine the property of the synchronization signal block according to the bandwidth part information of the synchronization signal block, for example, by performing blind detection on the synchronization signal block in the bandwidth part corresponding to the bandwidth part information. In the embodiment of the present invention, a specific implementation manner of the user equipment determining the attribute of the synchronization signal block according to the bandwidth part information of the synchronization signal block is not limited.

In the embodiment of the present invention, the base station may determine, according to a correspondence between an attribute of the synchronization signal block and an attribute of the CSI-RS, an attribute of the CSI-RS according to the attribute of the synchronization signal block, and send, with less signaling overhead, a correspondence of the remaining items other than the one or more items by setting, in advance, one or more items of the correspondence between the attribute of the CSI-RS and the attribute of the synchronization signal block as a default correspondence, and determine, by the user equipment, the attribute of the CSI-RS according to bandwidth part information of the synchronization signal block, the default correspondence, and the correspondence of the remaining items. By adopting the scheme of the embodiment of the invention, the base station can send less signaling overhead to ensure that the user equipment determines the attribute of the CSI-RS, thereby realizing the efficient configuration of the CSI-RS.

Further, the base station may configure and transmit to the user equipment whether the CSI-RS is activated or deactivated through Media Access Control (MAC) signaling or Downlink Control Information (DCI) signaling.

In particular, the CSI-RS is active, meaning that the user equipment can measure this CSI-RS; the CSI-RS is deactivated, meaning that the user equipment may not measure this CSI-RS.

In a specific implementation, if the time-frequency position of the CSI-RS is consistent with the time-frequency position of the synchronization signal block, only the synchronization signal block is transmitted.

Specifically, when the time-frequency position of the CSI-RS is consistent with the time-frequency position of the synchronization signal block, it may be considered that the CSI-RS collides with the synchronization signal block, and the base station may be configured to send only the synchronization signal block.

In the embodiment of the invention, because the characteristics and functions of the CSI-RS and the synchronizing signal block are similar, the base station can only send the synchronizing signal block or only send the CSI-RS on a single bandwidth part, and when the synchronizing signal block and the CSI-RS are configured on the same time-frequency position, the base station can only send the synchronizing signal block so as to save transmission resources.

In a specific implementation, if the time-frequency position of the CSI-RS and the time-frequency position of the synchronization signal block have an overlapping portion, the CSI-RS is configured and sent to the user equipment on a resource outside the overlapping portion within the time-frequency position of the CSI-RS.

Specifically, when the time-frequency position of the CSI-RS and the time-frequency position of the synchronization signal block have an overlapping portion, it may be considered that the CSI-RS and the synchronization signal block collide on a resource of the overlapping portion, and the base station may be configured to transmit the synchronization signal block on a resource other than the overlapping portion.

In the embodiment of the invention, the CSI-RS can be configured and sent on the resources except the overlapped part by configuring and sending the synchronizing signal block on the resources of the overlapped part, thereby more finely realizing the functions of time-frequency synchronization, RRM measurement, beam management and the like.

Referring to fig. 2, fig. 2 is a data flow diagram of a CSI-RS configuration method in an embodiment of the present invention. The CSI-RS configuration method may include steps S21 to S24, each of which is explained below.

In step S21, the base station 21 configures and transmits bandwidth part information of the synchronization signal block to the user equipment 22.

In step S22, the base station 21 determines one or more of the correspondence between the attributes of the CSI-RS and the synchronization signal block as a preset default correspondence.

In step S23, the base station 21 configures and transmits the correspondence of the remaining items other than the one or more items to the user equipment 22.

In step S24, the base station 21 determines the attributes of the CSI-RS.

For more details regarding steps S21 to S24, please refer to the related description of the CSI-RS configuration method shown in fig. 1 and above, and will not be described herein again.

Referring to a data flow diagram of another CSI-RS configuration method in the embodiment of the present invention shown in fig. 3, the another CSI-RS configuration method may include steps S31 to S33, and the steps are described below.

In step S31, the base station 31 configures and transmits bandwidth part information of the synchronization signal block to the user equipment 32.

In step S32, the base station 31 determines all items of the correspondence between the attributes of the CSI-RS and the synchronization signal block as preset default correspondences.

In step S33, the base station 31 determines the attributes of the CSI-RS.

In a specific implementation, when the base station determines that the corresponding relationships of all the items are the default corresponding relationship, since the user equipment already knows the content of the default corresponding relationship, for example, obtains the content according to a protocol, the user equipment may determine the corresponding relationships of all the items according to the default corresponding relationship, and further determine the attribute of the CSI-RS according to the bandwidth part information of the synchronization signal block and the corresponding relationships of all the items, so that the base station is not required to send the corresponding relationship between the attribute of the CSI-RS and the attribute of the synchronization signal block, which is beneficial to saving signaling overhead.

For more details regarding steps S31 to S33, please refer to the related description regarding the CSI-RS configuration method shown in fig. 1 to 2 and described above, and will not be repeated herein.

Referring to fig. 4, fig. 4 is a flowchart of another CSI-RS configuration method according to an embodiment of the present invention. The other CSI-RS configuration method may be used in a user equipment, and may include steps S41 to S44:

step S41: receiving bandwidth part information of a synchronization signal block from a base station;

step S42: receiving, from a base station, a correspondence of the remaining items other than one or more items among the correspondence between the attributes of the CSI-RS and the attributes of the synchronization signal block;

step S43: determining the attribute of the synchronization signal block according to the bandwidth part information of the synchronization signal block;

step S44: and determining the attribute of the CSI-RS according to the attribute of the synchronization signal block, the default corresponding relation of the one or more items and the corresponding relation of the other items.

Wherein the one or more default correspondences are used to indicate that one or more of the correspondences between the attributes of the CSI-RS and the attributes of the synchronization signal block are preset default correspondences, and the bandwidth part information of the synchronization signal block at least includes an identifier of a bandwidth part where the synchronization signal block is located.

In a specific implementation of step S41, bandwidth part information of a synchronization signal block is received from a base station, where the bandwidth part information of the synchronization signal block is used to indicate a bandwidth part where the synchronization signal block is located, and at least includes an identifier of the bandwidth part where the synchronization signal block is located.

It should be noted that the base station may further configure and send bandwidth part information of the CSI-RS to the user equipment, where the bandwidth part information of the CSI-RS at least includes an identifier of a bandwidth part where the CSI-RS is located, so that the user equipment may directly determine the bandwidth part where the CSI-RS is located by receiving the bandwidth part information of the CSI-RS from the base station.

In a specific implementation of step S42, since the base station sets one or more items of the correspondence between the attributes of the CSI-RS and the synchronization signal block as default correspondence in advance, the ue receives the correspondence of the remaining items except for the one or more items from the base station.

In a specific implementation of step S43, the ue determines the attribute of the synchronization signal block according to the bandwidth part information of the synchronization signal block, for example, by performing blind detection on the synchronization signal block in the bandwidth part corresponding to the bandwidth part information, the attribute of the synchronization signal block can be determined.

In a specific implementation of step S44, since the user equipment already knows the content of the default corresponding relationship, for example, obtained according to a protocol, the user equipment may determine the corresponding relationship of the one or more items that are not received according to the default corresponding relationship, so as to determine the corresponding relationship of all items. And determining the attribute of the CSI-RS according to the bandwidth part information of the synchronous signal block and the corresponding relation of all the items.

Further, the user equipment may receive, from the base station, whether the CSI-RS is activated or deactivated through a MAC instruction or a DCI instruction, and then measure the activated CSI-RS, but not measure the deactivated CSI-RS.

Further, the synchronization signal block is received only from a base station if the time-frequency position of the CSI-RS coincides with the time-frequency position of the synchronization signal block. Specifically, when the time-frequency position of the CSI-RS is consistent with the time-frequency position of the synchronization signal block, it may be considered that the CSI-RS collides with the synchronization signal block, and the base station may be set to only transmit the synchronization signal block, so that the user equipment only receives the synchronization signal block.

Further, if the time-frequency position of the CSI-RS and the time-frequency position of the synchronization signal block have an overlapping portion, the CSI-RS is received from a base station on resources outside the overlapping portion within the time-frequency position of the CSI-RS. Specifically, when the time-frequency position of the CSI-RS and the time-frequency position of the synchronization signal block have an overlapping portion, it may be considered that the CSI-RS and the synchronization signal block collide on a resource of the overlapping portion, and the base station may be configured to transmit the synchronization signal block on a resource outside the overlapping portion, so that the user equipment receives the synchronization signal block on the resource outside the overlapping portion.

For more details regarding steps S41 to S44, please refer to the related description regarding the CSI-RS configuration method shown in fig. 1 to 3, which is not repeated herein.

Fig. 5 is a data flow diagram of another CSI-RS configuration method according to an embodiment of the present invention. The other CSI-RS configuration method may include steps S51 to S55, which are explained below.

In step S51, the user equipment 52 receives bandwidth part information of the synchronization signal block from the base station 51.

In step S52, the base station 51 determines one or more of the correspondence between the attributes of the CSI-RS and the synchronization signal block as a preset default correspondence.

In step S53, the user equipment 52 receives, from the base station 51, the correspondence of the remaining items other than one or more items among the correspondence between the attributes of the CSI-RS and the synchronization signal block.

In step S54, the user equipment 52 determines the properties of the synchronization signal block according to the bandwidth part information of the synchronization signal block.

In step S55, the user equipment 52 determines the attribute of the CSI-RS according to the attribute of the synchronization signal block, the default corresponding relationship of the one or more items, and the corresponding relationship of the remaining items.

For more details regarding steps S51 to S55, please refer to the related description related to another CSI-RS configuration method shown in fig. 4 and described above, and will not be repeated herein.

Referring to fig. 6, a data flow diagram of another CSI-RS configuration method in an embodiment of the present invention is shown, where the yet another CSI-RS configuration method may include steps S61 to S64, and the following steps are described.

In step S61, the user equipment 62 receives bandwidth part information of the synchronization signal block from the base station 61.

In step S62, the base station 61 determines all items of the correspondence between the attributes of the CSI-RS and the synchronization signal block as preset default correspondences.

In step S63, the user equipment 62 determines the properties of the synchronization signal block according to the bandwidth part information of the synchronization signal block.

In step S64, the ue 62 determines the attribute of the CSI-RS according to the attribute of the synchronization signal block and the default corresponding relationship of all items.

For more details regarding steps S61 to S64, please refer to the related description related to another CSI-RS configuration method shown in fig. 4 to fig. 5, which is not repeated herein.

Referring to fig. 7, fig. 7 is a schematic structural diagram of a CSI-RS configuration apparatus according to an embodiment of the present invention. The CSI-RS configuration apparatus may be used on the base station side, and may include a synchronization signal block configuration module 71, a correspondence configuration module 72, a transmission module 73, a synchronization signal block transmission module 74, and a CSI-RS transmission module 75.

Wherein the synchronization signal block configuration module 71 is adapted to configure and send bandwidth part information of a synchronization signal block to a user equipment, where the bandwidth part information of the synchronization signal block at least includes an identifier of a bandwidth part where the synchronization signal block is located.

The correspondence configuration module 72 is adapted to determine that one or more items of the correspondence between the attributes of the CSI-RS and the synchronization signal block are preset default correspondences, and configure and send the correspondence of the remaining items except the one or more items to the user equipment, so that the user equipment determines the attributes of the CSI-RS according to the bandwidth part information of the synchronization signal block, the default correspondences, and the correspondence of the remaining items.

The transmitting module 73 is adapted to configure and transmit to the user equipment whether the CSI-RS is activated or deactivated through MAC signaling or DCI signaling.

The synchronization signal block sending module 74 is adapted to send the synchronization signal block only when the time-frequency position of the CSI-RS is consistent with the time-frequency position of the synchronization signal block.

The CSI-RS sending module 75 is adapted to configure and send the CSI-RS to the user equipment on resources outside the overlapping portion within the time-frequency position of the CSI-RS when the time-frequency position of the CSI-RS and the time-frequency position of the synchronization signal block have the overlapping portion.

Further, the correspondence between the properties of the CSI-RS and the properties of the synchronization signal block may include: the corresponding relation between the appearance period of the CSI-RS and the appearance period of the synchronous signal block; the number of repetitions of the CSI-RS corresponding to the synchronization signal block in an appearance period of each synchronization signal block; a time offset between a signal start point of the synchronization signal block and a signal start point of the CSI-RS; an offset of a frequency domain position of the CSI-RS from a frequency domain position of the synchronization signal block.

The default correspondence may include one or more of: the appearance period of the CSI-RS and the appearance period of the synchronous signal block have a preset multiple relation; the number of repetitions of the CSI-RS corresponding to the synchronization signal block in an appearance period of each synchronization signal block; the signal starting point of the synchronous signal block and the signal starting point of the CSI-RS have a preset time offset; the frequency domain position of the CSI-RS and the frequency domain position of the synchronization signal block have a preset offset.

Further, the step of the CSI-RS having the preset multiple relationship with the occurrence period of the synchronization signal block may include: the appearance period of the CSI-RS is the same as that of the synchronization signal block.

The number of repetitions of the CSI-RS corresponding to the synchronization signal block in the occurrence period of each synchronization signal block may include: and in the occurrence period of each synchronous signal block, the synchronous signal block corresponds to one CSI-RS.

The signal start point of the synchronization signal block and the signal start point of the CSI-RS have a preset time offset, which may be selected from: the signal starting point of the synchronous signal block is consistent with the signal starting point of the CSI-RS; the signal starting point of the synchronous signal block and the signal starting point of the CSI-RS have fixed time offset; the signal starting point of the CSI-RS is consistent with the signal starting point of a main synchronizing signal in the synchronizing signal block; the signal starting point of the CSI-RS is consistent with the signal starting point of the auxiliary synchronizing signal in the synchronizing signal block; the signal start point of the CSI-RS coincides with a signal start point of a physical broadcast channel in the synchronization signal block.

For more details of the CSI-RS configuration apparatus, please refer to the related description of the CSI-RS configuration method applied to the base station side shown in fig. 1 to fig. 3, which is not repeated herein.

Fig. 8 is a schematic structural diagram of another CSI-RS configuration apparatus according to an embodiment of the present invention. The CSI-RS configuration apparatus may be used on the user equipment side, and may include a synchronization signal block information receiving module 81, a correspondence receiving module 82, a synchronization signal block determining module 83, a CSI-RS determining module 84, a receiving module 85, a synchronization signal block receiving module 86, and a CSI-RS receiving module 87.

Wherein, the synchronization signal block information receiving module 81 is adapted to receive bandwidth part information of a synchronization signal block from a base station; wherein the bandwidth part information of the synchronization signal block at least comprises an identification of the bandwidth part where the synchronization signal block is located.

The correspondence receiving module 82 is adapted to receive, from a base station, a correspondence of the remaining items except for one or more items among the correspondence between the attributes of the CSI-RS and the attributes of the synchronization signal block; wherein the one or more default correspondences are used to indicate that one or more of the correspondences between the attributes of the CSI-RS and the attributes of the synchronization signal block are preset default correspondences.

The synchronization signal block determining module 83 is adapted to determine an attribute of the synchronization signal block based on the bandwidth part information of the synchronization signal block.

The CSI-RS determining module 84 is adapted to determine the attribute of the CSI-RS according to the attribute of the synchronization signal block, the default correspondence of the one or more items, and the correspondence of the remaining items.

The receiving module 85 is adapted to receive whether the CSI-RS is activated or deactivated from the base station through a MAC instruction or a DCI instruction.

The synchronization signal block receiving module 86 is adapted to receive the synchronization signal block only from the base station when the time-frequency position of the CSI-RS is consistent with the time-frequency position of the synchronization signal block.

The CSI-RS receiving module 87 is adapted to receive the CSI-RS from the base station on resources outside the overlapping part within the time-frequency position of the CSI-RS, when the time-frequency position of the CSI-RS and the time-frequency position of the synchronization signal block have the overlapping part.

Further, the default correspondence may include one or more of: the appearance period of the CSI-RS and the appearance period of the synchronous signal block have a preset multiple relation; the number of repetitions of the CSI-RS corresponding to the synchronization signal block in an appearance period of each synchronization signal block; the signal starting point of the synchronous signal block and the signal starting point of the CSI-RS have a preset time offset; the frequency domain position of the CSI-RS and the frequency domain position of the synchronization signal block have a preset offset.

The preset multiple relationship between the appearance period of the CSI-RS and the appearance period of the synchronization signal block may include: the appearance period of the CSI-RS is the same as that of the synchronization signal block.

For more details of the CSI-RS configuration apparatus, please refer to the related descriptions of the CSI-RS configuration method applicable to the ue side shown in fig. 4 to fig. 6, which are not repeated herein.

As shown in fig. 9, in the time-frequency domain resources corresponding to the cell a and the cell B, a bandwidth portion 93, a bandwidth portion 94, and a bandwidth portion 95 may be included in the frequency domain, the synchronization signal block shown in the legend 91 is located in the bandwidth portion 94, and the CSI-RS shown in the legend 92 is located in the bandwidth portion 95. It can be seen that, since the attribute of the synchronization signal block has a corresponding relationship with the attribute of the CSI-RS, the attribute of the CSI-RS can be determined according to the bandwidth part information of the synchronization signal block and the attribute of the synchronization signal block.

It should be noted that fig. 9 illustrates an example where 3 bandwidth portions are included in the frequency domain and the synchronization signal block coincides with the signal starting point of the CSI-RS, but in the embodiment of the present invention, the number of bandwidth portions and the specific correspondence relationship between the synchronization signal block and the CSI-RS are not limited by fig. 9.

The embodiment of the present invention further provides a computer-readable storage medium, on which computer instructions are stored, and when the computer instructions are executed, the steps of the CSI-RS configuration method applicable to the base station side are executed. The computer readable storage medium may be an optical disc, a mechanical hard disk, a solid state hard disk, etc.

The embodiment of the present invention further provides a computer-readable storage medium, on which computer instructions are stored, and when the computer instructions are executed, the steps of the CSI-RS configuration method applicable to the user equipment side are executed. The computer readable storage medium may be an optical disc, a mechanical hard disk, a solid state hard disk, etc.

The embodiment of the invention also provides a base station, which comprises a memory and a processor, wherein the memory is stored with computer instructions capable of running on the processor, and the processor executes the steps of the CSI-RS configuration method suitable for the base station side when running the computer instructions.

The embodiment of the present invention further provides a terminal, which includes a memory and a processor, where the memory stores a computer instruction capable of being executed on the processor, and the processor executes the steps of the CSI-RS configuration method applicable to the user equipment side when executing the computer instruction. The terminal can comprise various user equipment such as a smart phone and a tablet computer.

Although the present invention is disclosed above, the present invention is not limited thereto. Various changes and modifications may be effected therein by one skilled in the art without departing from the spirit and scope of the invention as defined in the appended claims.

Claims

1. A CSI-RS configuration method is characterized by comprising the following steps:

configuring and sending bandwidth part information of a synchronization signal block to user equipment, wherein the bandwidth part information of the synchronization signal block at least comprises an identifier of a bandwidth part where the synchronization signal block is located;

determining one or more items in the corresponding relationship between the attributes of the CSI-RS and the attributes of the synchronization signal block as a preset default corresponding relationship, and configuring and sending the corresponding relationship of the remaining items except the one or more items to the user equipment, so that the user equipment determines the attributes of the CSI-RS according to the bandwidth part information of the synchronization signal block, the default corresponding relationship and the corresponding relationship of the remaining items;

wherein the correspondence between the attributes of the CSI-RS and the attributes of the synchronization signal block comprises: the corresponding relation between the appearance period of the CSI-RS and the appearance period of the synchronous signal block;

a time offset between a signal start point of the synchronization signal block and a signal start point of the CSI-RS;

an offset of a frequency domain position of the CSI-RS from a frequency domain position of the synchronization signal block;

the default correspondence includes one or more of:

the appearance period of the CSI-RS and the appearance period of the synchronous signal block have a preset multiple relation;

the signal starting point of the synchronous signal block and the signal starting point of the CSI-RS have a preset time offset;

the frequency domain position of the CSI-RS and the frequency domain position of the synchronization signal block have a preset offset.

2. The CSI-RS configuration method according to claim 1, wherein the correspondence between the properties of the CSI-RS and the properties of the synchronization signal block further comprises:

the number of repetitions of the CSI-RS corresponding to the synchronization signal block in an appearance period of each synchronization signal block.

3. The CSI-RS configuration method of claim 1, wherein the default correspondence further comprises:

4. The CSI-RS configuration method according to claim 1, wherein the CSI-RS occurrence period has a preset multiple relation with the occurrence period of the synchronization signal block comprises:

the appearance period of the CSI-RS is the same as that of the synchronization signal block.

5. The CSI-RS configuration method according to claim 2 or 3, wherein the number of repetitions of the CSI-RS corresponding to the synchronization signal block in the occurrence period of each synchronization signal block comprises: and in the occurrence period of each synchronous signal block, the synchronous signal block corresponds to one CSI-RS.

6. The CSI-RS configuration method according to claim 1, wherein the signal start point of the synchronization signal block and the signal start point of the CSI-RS have a preset time offset selected from:

the signal starting point of the synchronous signal block is consistent with the signal starting point of the CSI-RS;

the signal starting point of the synchronous signal block and the signal starting point of the CSI-RS have fixed time offset;

the signal starting point of the CSI-RS is consistent with the signal starting point of a main synchronizing signal in the synchronizing signal block;

the signal starting point of the CSI-RS is consistent with the signal starting point of the auxiliary synchronizing signal in the synchronizing signal block;

the signal start point of the CSI-RS coincides with a signal start point of a physical broadcast channel in the synchronization signal block.

7. The CSI-RS configuration method according to claim 1, further comprising:

configuring and transmitting to the user equipment whether the CSI-RS is activated or deactivated through MAC signaling or DCI signaling.

8. The CSI-RS configuration method according to claim 1, further comprising:

and if the time-frequency position of the CSI-RS is consistent with the time-frequency position of the synchronous signal block, only transmitting the synchronous signal block.

9. The CSI-RS configuration method according to claim 1, further comprising:

and if the time-frequency position of the CSI-RS and the time-frequency position of the synchronous signal block have an overlapping part, configuring and sending the CSI-RS to the user equipment on resources outside the overlapping part within the time-frequency position of the CSI-RS.

10. A CSI-RS configuration method is characterized by comprising the following steps:

receiving bandwidth part information of a synchronization signal block from a base station;

receiving, from a base station, a correspondence of the remaining items other than one or more items among the correspondence between the attributes of the CSI-RS and the attributes of the synchronization signal block;

determining the attribute of the synchronization signal block according to the bandwidth part information of the synchronization signal block;

determining the attribute of the CSI-RS according to the attribute of the synchronization signal block, the default corresponding relation of the one or more items and the corresponding relation of the other items;

the one or more default corresponding relations are used for indicating that one or more corresponding relations between the attributes of the CSI-RS and the attributes of the synchronization signal block are preset default corresponding relations, and the bandwidth part information of the synchronization signal block at least comprises an identifier of a bandwidth part where the synchronization signal block is located;

the default correspondence includes one or more of:

11. The CSI-RS configuration method according to claim 10, wherein the correspondence between the properties of the CSI-RS and the properties of the synchronization signal block further comprises:

12. The CSI-RS configuration method of claim 10, wherein the default correspondence further comprises:

13. The CSI-RS configuring method according to claim 10, wherein the CSI-RS occurrence period has a preset multiple relationship with the occurrence period of the synchronization signal block, comprising:

14. The CSI-RS configuration method according to claim 11 or 12, wherein the number of repetitions of the CSI-RS corresponding to the synchronization signal block in the occurrence period of each synchronization signal block comprises:

and in the occurrence period of each synchronous signal block, the synchronous signal block corresponds to one CSI-RS.

15. The CSI-RS configuration method according to claim 10, wherein the signal start point of the synchronization signal block and the signal start point of the CSI-RS have a preset time offset selected from: the signal starting point of the synchronous signal block is consistent with the signal starting point of the CSI-RS;

16. The CSI-RS configuration method according to claim 10, further comprising:

receiving, from the base station, whether the CSI-RS is activated or deactivated through a MAC instruction or a DCI instruction.

17. The CSI-RS configuration method according to claim 10, further comprising:

and if the time-frequency position of the CSI-RS is consistent with the time-frequency position of the synchronous signal block, only receiving the synchronous signal block from a base station.

18. The CSI-RS configuration method according to claim 10, further comprising:

and if the time-frequency position of the CSI-RS and the time-frequency position of the synchronous signal block have an overlapping part, receiving the CSI-RS from a base station on resources outside the overlapping part within the time-frequency position of the CSI-RS.

19. An apparatus for CSI-RS configuration, comprising:

a synchronization signal block configuration module, adapted to configure and send bandwidth part information of a synchronization signal block to a user equipment, where the bandwidth part information of the synchronization signal block at least includes an identifier of a bandwidth part where the synchronization signal block is located;

a corresponding relation configuration module, adapted to determine that one or more items of corresponding relations between the attributes of the CSI-RS and the attributes of the synchronization signal block are preset default corresponding relations, configure and send corresponding relations of the remaining items except the one or more items to the user equipment, so that the user equipment determines the attributes of the CSI-RS according to the bandwidth part information of the synchronization signal block, the default corresponding relations, and the corresponding relations of the remaining items;

the default correspondence includes one or more of:

20. The CSI-RS configuration apparatus of claim 19, wherein the correspondence between the properties of the CSI-RS and the properties of the synchronization signal block further comprises:

21. The CSI-RS configuration apparatus of claim 19, wherein the default correspondence further comprises:

22. The apparatus of claim 19, wherein the CSI-RS configuration apparatus having the preset multiple relationship between the occurrence period of the CSI-RS and the occurrence period of the synchronization signal block comprises:

23. The CSI-RS configuring apparatus of claim 20 or 21, wherein the number of repetitions of the CSI-RS corresponding to the synchronization signal block in the occurrence period of each synchronization signal block comprises:

24. The CSI-RS configuration apparatus of claim 19, wherein the signal start point of the synchronization signal block and the signal start point of the CSI-RS have a preset time offset selected from: the signal starting point of the synchronous signal block is consistent with the signal starting point of the CSI-RS;

25. The CSI-RS configuration apparatus of claim 19, further comprising:

a transmitting module adapted to configure and transmit to the user equipment whether the CSI-RS is activated or deactivated through MAC signaling or DCI signaling.

26. The CSI-RS configuration apparatus of claim 19, further comprising:

and the synchronization signal block sending module is suitable for only sending the synchronization signal block when the time-frequency position of the CSI-RS is consistent with the time-frequency position of the synchronization signal block.

27. The CSI-RS configuration apparatus of claim 19, further comprising:

and the CSI-RS sending module is suitable for configuring and sending the CSI-RS to the user equipment on resources outside the overlapping part within the time-frequency position of the CSI-RS when the time-frequency position of the CSI-RS and the time-frequency position of the synchronization signal block have the overlapping part.

28. An apparatus for CSI-RS configuration, comprising:

a synchronization signal block information receiving module adapted to receive bandwidth part information of a synchronization signal block from a base station; a correspondence receiving module adapted to receive, from a base station, a correspondence of the remaining items other than one or more items among the correspondence between the attributes of the CSI-RS and the attributes of the synchronization signal block;

a synchronization signal block determination module adapted to determine an attribute of the synchronization signal block according to bandwidth part information of the synchronization signal block;

a CSI-RS determining module adapted to determine an attribute of the CSI-RS according to the attribute of the synchronization signal block, the default correspondence of the one or more items, and the correspondence of the remaining items;

the correspondence between the properties of the CSI-RS and the properties of the synchronization signal block includes:

the corresponding relation between the appearance period of the CSI-RS and the appearance period of the synchronous signal block;

the default correspondence includes one or more of:

29. The CSI-RS configuration apparatus of claim 28, wherein the correspondence between the properties of the CSI-RS and the properties of the synchronization signal block further comprises:

30. The CSI-RS configuration apparatus of claim 28, wherein the default correspondence further comprises:

31. The apparatus of claim 28, wherein the CSI-RS configuration apparatus has a preset multiple relationship between the occurrence period of the CSI-RS and the occurrence period of the synchronization signal block comprises:

32. The CSI-RS configuring apparatus of claim 29 or 30, wherein the number of repetitions of the CSI-RS corresponding to the synchronization signal block in the occurrence period of each synchronization signal block comprises:

33. The CSI-RS configuration apparatus of claim 28, wherein the signal start point of the synchronization signal block and the signal start point of the CSI-RS have a preset time offset selected from: the signal starting point of the synchronous signal block is consistent with the signal starting point of the CSI-RS;

34. The CSI-RS configuration apparatus of claim 28, further comprising:

a receiving module adapted to receive whether the CSI-RS is activated or deactivated from the base station through a MAC instruction or a DCI instruction.

35. The CSI-RS configuration apparatus of claim 28, further comprising:

and the synchronization signal block receiving module is suitable for receiving the synchronization signal block only from a base station when the time-frequency position of the CSI-RS is consistent with the time-frequency position of the synchronization signal block.

36. The CSI-RS configuration apparatus of claim 28, further comprising:

a CSI-RS receiving module adapted to receive the CSI-RS from a base station on resources outside of an overlapping portion within a time-frequency position of the CSI-RS when the time-frequency position of the CSI-RS and the time-frequency position of the synchronization signal block have the overlapping portion.

37. A computer readable storage medium having computer instructions stored thereon, wherein the computer instructions when executed perform the steps of the CSI-RS configuration method of any of claims 1 to 9.

38. A computer readable storage medium having computer instructions stored thereon, wherein the computer instructions when executed perform the steps of the CSI-RS configuration method of any of claims 10 to 18.

39. A base station comprising a memory and a processor, the memory having stored thereon computer instructions executable on the processor, wherein the processor, when executing the computer instructions, performs the steps of the CSI-RS configuration method of any of claims 1 to 9.

40. A terminal comprising a memory and a processor, the memory having stored thereon computer instructions executable on the processor, wherein the processor, when executing the computer instructions, performs the steps of the CSI-RS configuration method of any of claims 10 to 18.