CN109802797A - Determine the method and the network equipment of the granularity of channel state information reference signals - Google Patents
Determine the method and the network equipment of the granularity of channel state information reference signals Download PDFInfo
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Abstract
The invention discloses the methods and the network equipment of a kind of granularity of determining channel state information reference signals, this method comprises: when not detecting the sub-band information that terminal device reports, the granularity of channel state information reference information CSI-RS is determined one of in several ways；Wherein, the various ways include: that predetermined particle degree is determined as the granularity of the CSI-RS and selects the granularity of the CSI-RS from alternative granularity.The method of the embodiment of the present invention, enable to the network equipment when not detecting the sub-band information that terminal device reports, so that the network equipment can determine the granularity of CSI-RS, so that successfully CSI-RS is sent to terminal device, convenient for more accurately and efficiently communicating between terminal and network.
Description
Technical field
The present invention relates to the communications field more particularly to a kind of particles of determining channel state information reference signals (CSI-RS)
Spend the method and the network equipment of (granularity).
Background technique
With the fast development of the communication technology, more and more new technologies occur in the field of communications.In the 5th Dai Yidong
It in communication system, especially newly eats dishes without rice or wine in (new radio, NR) standard discussion, granularity N refers to channel state information reference signals
(Channel State information-Reference Signal, CSI-RS) continuous resource block on frequency domain
(Resource Block, RB) number.In general, if the network equipments configuration mapping of carrier bandwidths part and subband size
Relationship, then the granularity N of CSI-RS can be equal to subband size, and terminal device (User Equipment, UE) can be according to net
The subband size of network device configuration reports CSI.
However, when occurring situations such as CSI-RS is used as wave beam management or non-subband reports, if the network equipment is not matched
Subband size is set, the network equipment will be unable to determine the granularity of CSI-RS, and the network equipment is caused not send out to terminal device accurately
Send CSI-RS.
Summary of the invention
The embodiment of the present invention provides the method and the network equipment of a kind of granularity of determining channel state information reference signals,
To solve when CSI-RS is used as, situations such as wave beam management or non-subband report occurs and the network equipment does not configure subband size
In the case where, the network equipment can not determine that the granularity of CSI-RS leads to not accurately send asking for CSI-RS to terminal device
Topic or the network equipment can not independently determine that the granularity of CSI-RS causes, and accurately can not send CSI-RS's to terminal device
Problem.
In order to solve the above-mentioned technical problem, the present invention is implemented as follows:
In a first aspect, providing a kind of method of determining channel state information reference signals granularity, set applied to network
It is standby, this method comprises:
When not detecting the sub-band information that terminal device reports, channel state information is determined one of in several ways
The granularity of reference information CSI-RS；
Wherein, the various ways include: predetermined particle degree to be determined as the granularity of the CSI-RS and from alternative
The granularity of the CSI-RS is selected in granularity.
Second aspect provides a kind of network equipment, which includes:
Detection module, the sub-band information reported for detecting terminal device；
Determining module, for passing through a variety of sides when the detection module does not detect the sub-band information that terminal device reports
One of formula determines the granularity of channel state information reference information CSI-RS；
Wherein, the various ways include: predetermined particle degree to be determined as the granularity of the CSI-RS and from alternative
The granularity of the CSI-RS is selected in granularity.
The third aspect provides a kind of network equipment, which includes processor, memory and be stored in described deposit
On reservoir and the computer program that can run on the processor, the computer program are realized when being executed by the processor
The step of method of the granularity of determination channel state information reference signals as described in relation to the first aspect.
Fourth aspect provides a kind of computer readable storage medium, which is characterized in that the computer-readable storage medium
Computer program is stored in matter, and determination channel shape as described in relation to the first aspect is realized when the computer program is executed by processor
The step of method of the granularity of state information reference signal.
5th aspect, provides a kind of method of the granularity of determining channel state information reference signals CSI-RS, is applied to
The network equipment characterized by comprising
The sub-band information that detection terminal device reports；
The granularity of channel state information reference information CSI-RS is determined one of in several ways, wherein described
Various ways include: that predetermined particle degree is determined as the granularity of the CSI-RS and from alternative granularity described in selection
The granularity of CSI-RS.
In embodiments of the present invention, by when not detecting the sub-band information that terminal device reports, in several ways in
A kind of determining channel state information reference information CSI-RS granularity, can be realized the network equipment and do not detecting terminal device
When the sub-band information reported, so that the network equipment can determine the granularity of CSI-RS, to successfully send to terminal device
CSI-RS, convenient for more accurately and efficiently being communicated between terminal and network.Or the network equipment can not can independently determine
The granularity of CSI-RS causes, and more acurrate can send CSI-RS to terminal device, guarantee more quasi- between terminal and network
Really communicate.
Detailed description of the invention
The drawings described herein are used to provide a further understanding of the present invention, constitutes a part of the invention, this hair
Bright illustrative embodiments and their description are used to explain the present invention, and are not constituted improper limitations of the present invention.In the accompanying drawings:
Fig. 1 is the schematic of the method for the determination channel state information reference signals granularity of one embodiment of the present of invention
Flow chart.
Fig. 2 is the example that the predetermined particle degree of one embodiment of the present of invention is determined as the granularity of CSI-RS.
Fig. 3 is another example that the predetermined particle degree of one embodiment of the present of invention is determined as the granularity of CSI-RS.
Fig. 4 is an example of the granularity that CSI-RS is selected from alternative granularity of one embodiment of the present of invention.
Fig. 5 is the structural schematic diagram of the network equipment according to an embodiment of the invention.
Fig. 6 is the structural schematic diagram of the network equipment in accordance with another embodiment of the present invention.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation description, it is clear that described embodiments are some of the embodiments of the present invention, instead of all the embodiments.Based on this hair
Embodiment in bright, every other implementation obtained by those of ordinary skill in the art without making creative efforts
Example, shall fall within the protection scope of the present invention.
Technical solution of the present invention can be applied to various communication systems, such as: global system for mobile communications (Global
System of Mobile communication, GSM), CDMA (Code DivisionMultiple Access,
CDMA) system, wideband code division multiple access (Wideband Code Division MultipleAccess, WCDMA) system are general
Packet wireless business (General Packet Radio Service, GPRS) system, long term evolution (Long Term
Evolution, LTE)/enhancing long term evolution (Long TermEvolution-advanced, LTE-A) system, newly eat dishes without rice or wine (New
Radio, NR) system etc., then the field technical staff is appreciated that the embodiment of the present invention is not limited to above-mentioned communication system
Application.
Terminal device (User Equipment, UE), also referred to as mobile terminal (Mobile Terminal), movement
User equipment etc., can be through wireless access network (for example, Radio Access Network, RAN) and one or more core nets
(Core Network, CN) is communicated, and user equipment can be mobile terminal, such as mobile phone (or being " honeycomb " phone)
With the computer with mobile terminal, for example, it may be portable, pocket, hand-held, built-in computer or it is vehicle-mounted
Mobile device, they exchange language and/or data with wireless access network.
Base station can be the base station (Base Transceiver Station, BTS) in GSM or CDMA, be also possible to
Base station (NodeB) in WCDMA can also be evolved base station (eNB or e-NodeB, evolutional Node in LTE
B) and the base station of the base station 5G (gNB) and subsequent evolution version, the present invention are not restriction with word, but for convenience of description, under
Embodiment is stated to be illustrated by taking gNB as an example.
The technical solution provided below in conjunction with attached drawing, each embodiment that the present invention will be described in detail.
Fig. 1 shows the side of the granularity of determining channel state information reference signals according to an embodiment of the invention
Method.As shown in Figure 1, method 100 is applied to the network equipment, such as gNB, comprising:
S110 determines channel shape when not detecting the sub-band information that terminal device reports one of in several ways
The granularity of state information reference information CSI-RS.In step s 110, the sub-band information that terminal reports is not detected, includes terminal
Sub-band information or terminal is not reported to report sub-band information, network side is not correctly decoded.One of ordinary skill in the art can
To understand " do not detect terminal device report sub-band information " not for limitation.
Wherein, in S110, various ways include: by predetermined particle degree be determined as the CSI-RS granularity and from
The granularity of the CSI-RS is selected in alternative granularity.
Optionally, in some embodiments, the predetermined particle degree is default number.Furthermore, it is understood that implementing at one
In example, the default number can be set to 4, the subband size (subband which can actually use with terminal
Size) unrelated, in an example, as illustrated in FIG. 2, CSI-RS occupies continuous 4 RB on frequency domain.So this is not pair
In the limitation of the embodiment of the present application, network side equipment can apply other default numbers according to application scenarios, for example, 2 or 8
Deng.
Optionally, in further embodiments, it is continuous 1 that the default number, which is set as the granularity of 1, CSI-RS,
RB.In this case, the RB that CSI-RS is occupied can be on frequency domain it is adjacent to each other, can be it is non-conterminous, can also be with
It is that RB adjacent other parts RB in part is non-conterminous in other words, in the case where default number is 1, between the distribution of CSI-RS
It can be continuous discrete or distributed (distributed) on frequency domain.Such as illustrated in FIG. 3
, the granularity of CSI-RS is 1, and a part of RB occupied on frequency domain is adjacent, the adjacent RB in this part and another portion
The RB of split-phase neighbour is non-conterminous.The method gone out as indicated at 3, it is believed that the network equipment can be unoccupied on all frequency domains
RB on send CSI-RS.
Optionally, in some embodiments, the alternative granularity be current carrier portions of bandwidth it is corresponding at least one
Subband size.Wherein, it may include: corresponding from current carrier portions of bandwidth that the granularity of CSI-RS is selected from alternative granularity
At least one subband size in select CSI-RS granularity, specifically, in some embodiments, from current carrier bandwidth portion
The granularity for dividing selection CSI-RS at least one corresponding subband size is according to current carrier portions of bandwidth and carrier bandwidths
The corresponding relationship of part and subband size, determines at least one corresponding subband size of current carrier portions of bandwidth.Specifically, exist
In some embodiments, the granularity of the CSI-RS is selected also at least one corresponding subband size of current carrier portions of bandwidth
It is selected at random including selecting one from the minimum value of the maximum value of subband size or subband size, or from above-mentioned the two
It selects one of described.
For example, for example, corresponding to the PRB of different number at carrier bandwidths part (carrier bandwidth part)
In the case where, the PRB quantity of subband size can have minimum value and/or maximum value.For example, when carrier bandwidths part is 24-
When 60, subband size can be 6 or 12, so wherein it is possible to by the minimum value in the case of 6 settings thus, and 12 feelings thus
Maximum value under condition, then alternative granularity can be 6 and 12, then the network equipment can be selected from maximum value, minimum value
Minimum value 6 perhaps selects maximum value 12 or the random selection one from minimum value and maximum value.
In other words, it is assumed that a kind of when the RB number that carrier bandwidths part includes is 20 to 60 there are two types of corresponding subband sizes
The RB number that subband size includes is 6, and the RB number that another seed belt size includes is 12, then as illustrated in FIG. 4, if working as front bearing
The RB number that wavestrip wide portion includes is 26, then the granularity of CSI-RS can be determined as to 6, i.e. CSI-RS occupies continuous on frequency domain
6 RB.When being other ranges for carrier bandwidths part, similarly, for purpose of brevity, repeat no more.
In the foregoing embodiments, the network equipment (the method 100) is not detect the subband letter that terminal device reports
When breath, the granularity of channel state information reference information CSI-RS is determined one of in several ways, but the present invention is unlimited
In this, the network equipment can also be when detecting the sub-band information that terminal device reports, equally one of in several ways really
Determine the granularity of channel state information reference information CSI-RS.Also, when detecting the sub-band information that terminal device reports, lead to
It crosses one of various ways and determines that the granularity of channel state information reference information CSI-RS can refer to the method 100 of Fig. 1
Each process of embodiment, that is, the sub-band information that network side equipment detection terminal device reports；One of in several ways
Determine the granularity of channel state information reference information CSI-RS, wherein the various ways include: to determine predetermined particle degree
The granularity of the CSI-RS is selected for the granularity of the CSI-RS and from alternative granularity.To avoid repeating, here not
It repeats again.
The granularity of determining channel state information reference signals according to an embodiment of the present invention is described in detail in figure 1 above
The network equipment according to an embodiment of the present invention is described in detail below in conjunction with Fig. 5 in method.
Fig. 5 shows the structure chart of the network equipment according to an embodiment of the invention.As shown in figure 5, the network equipment 500
Include:
Detection module 501, the sub-band information reported for detecting terminal device；
Processing module 503, for when detection module 501 does not detect the sub-band information that terminal device reports, by a variety of
One of mode determines the granularity of channel state information reference information CSI-RS；
Wherein, the various ways include: predetermined particle degree to be determined as the granularity of CSI-RS and from alternative granularity
The granularity of middle selection CSI-RS.
Optionally, as one embodiment, the predetermined particle degree is default number.Furthermore, it is understood that implementing at one
In example, the default number can be set to 4 or 1.
Optionally, as one embodiment, the alternative granularity be current carrier portions of bandwidth it is corresponding at least one
Subband size.Wherein, the processing module 503 is specifically used for:
The granularity of the CSI-RS is selected from least one corresponding subband size of the current carrier portions of bandwidth.
Optionally, as one embodiment, processing module 503 is also used to:
According to the corresponding relationship of the current carrier portions of bandwidth and carrier bandwidths part and subband size, work as described in determination
At least one corresponding subband size of preceding carrier band wide portion.
Optionally, as one embodiment, processing module 503 is specifically used for:
From selecting one in the minimum value of the maximum value of subband size or subband size, or from above-mentioned the two with
One of described in machine selection.
The network equipment provided in an embodiment of the present invention can be realized the network equipment in the embodiment of the method for Fig. 1 realize it is each
Process, to avoid repeating, which is not described herein again.
The network equipment according to an embodiment of the present invention determines channel state information with reference to letter one of in several ways
The granularity for ceasing CSI-RS, can be realized the network equipment when not detecting the sub-band information that terminal device reports, so that network is set
The standby granularity that can determine CSI-RS, so that successfully CSI-RS is sent to terminal device, convenient between terminal and network
More accurately and efficiently communicate.
The field technical staff is appreciated that in the embodiment in Fig. 5 that detection module 501 and processing module 503 can
To inherit in a processing module, which can be implemented as hardware circuit perhaps software or hardware and software
Combination, the embodiment of the present invention, not with the specific implementation form of the processing module be limitation, as long as can solve roughly the same
Technical problem reaches the technical effect roughly the same with the application, in the protection scope of the embodiment of the present invention.
The field technical staff is appreciated that above-mentioned detection module 501 can be implemented as, for detecting terminal device
The sub-band information of report；Processing module 503 can be implemented as, the subband for reporting in detection module 501 in detection terminal device
When information, or when not being correctly decoded the sub-band information that terminal reports, channel status is determined one of in several ways
The granularity of information reference information CSI-RS repeats no more for purpose of brevity.
Referring to Fig. 6, Fig. 6 is the structure chart of the network equipment of application of the embodiment of the present invention, side shown in FIG. 1 can be realized
Details in method embodiment, and reach identical effect.As shown in fig. 6, the network equipment 600 includes: processor 601, transceiver
602, memory 603, user interface 604 and bus interface, in which:
In embodiments of the present invention, the network equipment 600 further include: storage on a memory 603 and can be on processor 301
The computer program of operation realizes following steps when computer program is by processor 601, execution:
When not detecting the sub-band information that terminal device reports, channel state information is determined one of in several ways
The granularity of reference information CSI-RS；
Wherein, the various ways include: predetermined particle degree to be determined as the granularity of the CSI-RS and from alternative
The granularity of the CSI-RS is selected in granularity.
The field technical staff is appreciated that the above-mentioned network equipment 600 further include: storage on a memory 603 and can
The computer program run on processor 301 is realized following steps when computer program is by processor 601, execution: being detected
When the sub-band information that terminal device reports, determine channel state information reference information CSI-RS's one of in several ways
Granularity；Wherein, the various ways include: predetermined particle degree to be determined as the granularity of the CSI-RS and from alternative
The granularity of the CSI-RS is selected in granularity.For purpose of brevity, it repeats no more.
In Fig. 6, bus architecture may include the bus and bridge of any number of interconnection, specifically be represented by processor 601
One or more processors and the various circuits of memory that represent of memory 603 link together.Bus architecture can be with
Various other circuits of such as peripheral equipment, voltage-stablizer and management circuit or the like are linked together, these are all these
Well known to field, therefore, it will not be further described herein.Bus interface provides interface.Transceiver 602 can be
Multiple element includes transmitter and receiver, provides the unit for communicating over a transmission medium with various other devices.Needle
To different user equipmenies, user interface 604, which can also be, external the interface for needing equipment is inscribed, and the equipment of connection includes
But be not limited to keypad, display, loudspeaker, microphone, control stick etc..
Processor 601, which is responsible for management bus architecture and common processing, memory 603, can store processor 601 and is holding
Used data when row operation.
In the embodiment of the present invention, by when not detecting the sub-band information that terminal device reports, in several ways in
A kind of granularity of determining channel state information reference information CSI-RS, so as to not detected on terminal device in the network equipment
When the sub-band information of report, so that the network equipment can determine the granularity of CSI-RS, to successfully send to terminal device
CSI-RS, convenient for more accurately and efficiently being communicated between terminal and network.
Optionally, as one embodiment, the predetermined particle degree is default number.
Optionally, as one embodiment, the alternative granularity be current carrier portions of bandwidth it is corresponding at least one
Subband size；
Wherein, following steps be can also be achieved when computer program is executed by processor 601:
The granularity of the CSI-RS is selected from least one corresponding subband size of the current carrier portions of bandwidth.
Optionally, as one embodiment, computer program can also be achieved following steps when being executed by processor 601:
According to the corresponding relationship of the current carrier portions of bandwidth and carrier bandwidths part and subband size, work as described in determination
At least one corresponding subband size of preceding carrier band wide portion.
Optionally, as one embodiment, computer program can also be achieved following steps when being executed by processor 601:
From selecting one in the minimum value of the maximum value of subband size or subband size, or from above-mentioned the two with
One of described in machine selection.
The embodiment of the present invention also provides a kind of computer readable storage medium, and meter is stored on computer readable storage medium
Calculation machine program, the computer program realize above-mentioned determining channel state information reference signals CSI-RS particle when being executed by processor
Each process of the embodiment of the method for degree, and identical technical effect can be reached, to avoid repeating, which is not described herein again.Wherein,
The computer readable storage medium, such as read-only memory (Read-Only Memory, abbreviation ROM), random access memory
Device (Random Access Memory, abbreviation RAM), magnetic or disk etc..
It should be noted that, in this document, the terms "include", "comprise" or its any other variant are intended to non-row
His property includes, so that the process, method, article or the device that include a series of elements not only include those elements, and
And further include other elements that are not explicitly listed, or further include for this process, method, article or device institute it is intrinsic
Element.In the absence of more restrictions, the element limited by sentence "including a ...", it is not excluded that including being somebody's turn to do
There is also other identical elements in the process, method of element, article or device.
Through the above description of the embodiments, those skilled in the art can be understood that above-described embodiment side
Method can be realized by means of software and necessary general hardware platform, naturally it is also possible to by hardware, but in many cases
The former is more preferably embodiment.Based on this understanding, technical solution of the present invention substantially in other words does the prior art
The part contributed out can be embodied in the form of software products, which is stored in a storage medium
In (such as ROM/RAM, magnetic disk, CD), including some instructions are used so that a terminal (can be mobile phone, computer, service
Device, air conditioner or network equipment etc.) execute method described in each embodiment of the present invention.
The embodiment of the present invention is described with above attached drawing, but the invention is not limited to above-mentioned specific
Embodiment, the above mentioned embodiment is only schematical, rather than restrictive, those skilled in the art
Under the inspiration of the present invention, without breaking away from the scope protected by the purposes and claims of the present invention, it can also make very much
Form belongs within protection of the invention.
Claims (16)
1. a kind of method of the granularity of determining channel state information reference signals CSI-RS is applied to the network equipment, feature
It is, comprising:
When not detecting the sub-band information that terminal device reports, channel state information reference is determined one of in several ways
The granularity of information CSI-RS；
Wherein, the various ways include: predetermined particle degree to be determined as the granularity of the CSI-RS and from alternative granularity
The granularity of the middle selection CSI-RS.
2. the method as described in claim 1, which is characterized in that the predetermined particle degree is default number.
3. the method as described in claim 1, which is characterized in that the alternative granularity is that current carrier portions of bandwidth is corresponding
At least one subband size；
Wherein, the granularity that the CSI-RS is selected from alternative granularity, comprising:
The granularity of the CSI-RS is selected from least one corresponding subband size of the current carrier portions of bandwidth.
4. according to the method described in claim 3, it is characterized in that, the method also includes:
According to the corresponding relationship of the current carrier portions of bandwidth and carrier bandwidths part and subband size, determination is described to work as front bearing
The corresponding at least one subband size of wavestrip wide portion.
5. method as claimed in claim 3, which is characterized in that from least one corresponding son of the current carrier portions of bandwidth
With the granularity for selecting the CSI-RS in size, comprising:
It is selected at random from selecting one in the minimum value of the maximum value of subband size or subband size, or from above-mentioned the two
It selects one of described.
6. a kind of network equipment characterized by comprising
Detection module, the sub-band information reported for detecting terminal device；
Processing module, for when the detection module does not detect the sub-band information that terminal device reports, in several ways in
A kind of determining channel state information reference information CSI-RS granularity；
Wherein, the various ways include: predetermined particle degree to be determined as the granularity of the CSI-RS and from alternative granularity
The granularity of the middle selection CSI-RS.
7. the network equipment as claimed in claim 6, which is characterized in that the predetermined particle degree is default number.
8. the network equipment as claimed in claim 6, which is characterized in that the alternative granularity is current carrier portions of bandwidth pair
At least one the subband size answered；
Wherein, the processing module is specifically used for:
The granularity of the CSI-RS is selected from least one corresponding subband size of the current carrier portions of bandwidth.
9. the network equipment according to claim 8, which is characterized in that the processing module is also used to:
According to the corresponding relationship of the current carrier portions of bandwidth and carrier bandwidths part and subband size, determination is described to work as front bearing
At least one corresponding subband size of wavestrip wide portion.
10. the network equipment as claimed in claim 8, which is characterized in that the processing module is specifically used for: from subband size
One is selected in the minimum value of maximum value or subband size, or from above-mentioned the two one of described in random selection.
11. a kind of computer-readable medium, which is characterized in that computer program is stored on the computer-readable medium, it is described
The determination channel state information reference as described in any one of claims 1 to 5 is realized when computer program is executed by processor
The step of method of the granularity of signal CSI-RS.
12. a kind of method of the granularity of determining channel state information reference signals CSI-RS is applied to the network equipment, feature
It is, comprising:
The sub-band information that detection terminal device reports；
The granularity of channel state information reference information CSI-RS is determined one of in several ways, wherein described a variety of
Mode includes: that predetermined particle degree is determined as the granularity of the CSI-RS and selects the CSI-RS from alternative granularity
Granularity.
13. method as claimed in claim 12, which is characterized in that the predetermined particle degree is default number.
14. method as claimed in claim 12, which is characterized in that the alternative granularity is corresponding for current carrier portions of bandwidth
At least one subband size；
Wherein, the granularity that the CSI-RS is selected from alternative granularity, comprising:
The granularity of the CSI-RS is selected from least one corresponding subband size of the current carrier portions of bandwidth.
15. according to the method for claim 14, which is characterized in that the method also includes:
According to the corresponding relationship of the current carrier portions of bandwidth and carrier bandwidths part and subband size, determination is described to work as front bearing
The corresponding at least one subband size of wavestrip wide portion.
16. method as claimed in claim 14, which is characterized in that from the current carrier portions of bandwidth it is corresponding at least one
The granularity of the CSI-RS is selected in subband size, comprising:
It is selected at random from selecting one in the minimum value of the maximum value of subband size or subband size, or from above-mentioned the two
It selects one of described.
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN111614390A (en) * | 2019-05-31 | 2020-09-01 | 维沃移动通信有限公司 | Transmission method, terminal and network equipment for CSI report |
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| CN111614390B (en) * | 2019-05-31 | 2022-07-08 | 维沃移动通信有限公司 | Transmission method, terminal and network equipment for CSI report |
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