CN108111203A

CN108111203A - The method and device that a kind of method, apparatus, the information of information feedback receive

Info

Publication number: CN108111203A
Application number: CN201711148768.3A
Authority: CN
Inventors: 张淑娟; 高波; 陈艺戬; 蒋创新; 李儒岳; 鲁照华
Original assignee: ZTE Corp
Current assignee: ZTE Corp
Priority date: 2017-11-17
Filing date: 2017-11-17
Publication date: 2018-06-01
Also published as: WO2019096230A1

Abstract

The method and device that a kind of method, apparatus, the information of information feedback receive, including：The maximum occurrences M_max of the definite indication information for needing to feed back；Feed back at least one following information：M resource indication information, Q quality indication (CQI) information；Wherein, M, Q are the nonnegative integer less than or equal to M_max；Indication information includes resource indication information and/or quality indication (CQI) information.Embodiment of the present disclosure method realizes the information feedback of multi-beam.

Description

Information feedback method and device, and information receiving method and device

Technical Field

The present disclosure relates to, but not limited to, wireless communication technologies, and more particularly, to a method and an apparatus for information feedback, and a method and an apparatus for information reception.

Background

High frequency communication is one of core technologies of a new air interface (NR), and the high frequency communication can provide ultra-large bandwidth communication for future communication, thereby greatly improving communication capacity. An important feature of high frequency communication is based on beam transmission, in particular radio frequency beam transmission. Because the path loss of the high-frequency signal is large, the coverage distance needs to be increased based on the beam gain, and on the other hand, the high-frequency wavelength is short, so that a large-scale antenna array can be formed, and the possibility is provided for beam-based communication.

In a system based on beam communication, a transmitting beam and a receiving beam pair need to be aligned before communication, and because a beam is partially covered, the situation that the aligned beam cannot communicate easily occurs due to factors such as obstruction, movement of both communication parties and the like, and in order to quickly recover from a failed beam pair and consider a scenario such as multi-user scheduling of a base station, a terminal needs to feed back a plurality of transmitting beams to the base station.

The NR determining terminal may feed back 4 beams at a time among 64 transmission beams, and considering that each transmission beam also needs to feed back Reference Signal Received Power (RSRP), so that the feedback overhead may be relatively large, and considering that more transmission beams may need to be fed back in future standard versions and quality information of each beam may need to be fed back, how to reduce the feedback overhead problem in multi-beam feedback needs to be considered; at present, there is no scheme for reducing the overhead problem of multi-beam feedback.

Disclosure of Invention

The following is a summary of the subject matter described in detail herein. This summary is not intended to limit the scope of the claims.

The embodiment of the disclosure provides an information feedback method and device, and an information receiving method and device, which can realize multi-beam information feedback.

The embodiment of the disclosure provides an information feedback method, which includes:

determining a maximum value M _ max of the indication information needing to be fed back;

feeding back M resource indication information and/or Q quality indication information;

wherein M, Q is a non-negative integer less than or equal to M _ max.

The indication information comprises resource indication information and/or quality indication information.

On the other hand, the embodiment of the present disclosure further provides a computer storage medium, in which computer-executable instructions are stored, and the computer-executable instructions are used for executing the above information feedback method.

In another aspect, an embodiment of the present disclosure further provides an information feedback method, including:

feeding back C resource indication information and index information of N resources meeting preset characteristics in the C resources;

wherein C is a positive integer, N is a positive integer less than or equal to C, and the C resources are characterized by the C resource indication information.

In still another aspect, the embodiments of the present disclosure further provide a computer storage medium, where computer-executable instructions are stored in the computer storage medium, and the computer-executable instructions are used to execute the above information feedback method.

determining first quality information;

determining quantization information of the second quality information according to the first quality information;

quantizing the second quality information according to the determined quantization information;

feeding back the quantized second quality information;

wherein the quantization information comprises at least one of: quantization method, quantization parameter.

In another aspect, an embodiment of the present disclosure further provides an information receiving method, including:

receiving the quantized second quality information;

determining first quality information;

determining quantization information referred to by the received quantized second quality information according to the determined first quality information;

determining second quality information according to the quantization information and the quantized second quality information;

In still another aspect, the embodiments of the present disclosure further provide a computer storage medium, where computer-executable instructions are stored in the computer storage medium, and the computer-executable instructions are configured to perform the above-mentioned information receiving method.

In still another aspect, an embodiment of the present disclosure further provides an apparatus for information feedback, including: a first unit and a second unit; wherein,

the first unit is used for: determining a maximum value M _ max of the indication information needing to be fed back;

the second unit is used for: feeding back at least one of the following information: m resource indication information and Q quality indication information;

wherein M, Q is a non-negative integer less than or equal to M _ max.

In still another aspect, an embodiment of the present disclosure further provides an apparatus for information feedback, including: a fourth unit to:

In still another aspect, an embodiment of the present disclosure further provides an apparatus for information feedback, including: a sixth unit, a seventh unit, an eighth unit, and a ninth unit; wherein,

the sixth unit is configured to: determining first quality information;

a seventh unit is configured to: determining quantization information of the second quality information according to the first quality information;

the eighth unit is to: quantizing the second quality information according to the determined quantization information;

the ninth unit is configured to: feeding back the quantized second quality information;

wherein the quantization information comprises part or all of the following: quantization method, quantization parameter.

In another aspect, an embodiment of the present disclosure further provides an information receiving apparatus, including: a first module, a second module, a third module and a fourth module; wherein,

the first module is to: receiving the quantized second quality information;

the second module is to: determining first quality information;

a third module is to: determining quantization information referred to by the received quantized second quality information according to the determined first quality information;

the fourth module is to: determining second quality information according to the quantization information;

In another aspect, an embodiment of the present disclosure further provides a terminal, including: a memory and a processor; wherein,

the processor is configured to execute program instructions in the memory;

the program instructions read on the processor to perform the following operations:

feeding back at least one of the following information: m resource indication information and Q quality indication information;

wherein M, Q is a non-negative integer less than or equal to M _ max.

the processor is configured to execute program instructions in the memory;

determining first quality information;

feeding back the quantized second quality information;

the processor is configured to execute program instructions in the memory;

receiving the quantized second quality information;

determining first quality information;

wherein the quantization information comprises at least one of: quantization method, quantization parameter. .

Compared with the related art, the technical scheme of the application comprises the following steps: determining a maximum value M _ max of the indication information needing to be fed back; feeding back at least one of the following information: m resource indication information and Q quality indication information; wherein M, Q is a non-negative integer less than or equal to M _ max; the indication information comprises resource indication information and/or quality indication information. The method of the embodiment of the disclosure realizes information feedback of multiple beams.

Additional features and advantages of the disclosure will be set forth in the description which follows, and in part will be obvious from the description, or may be learned by the practice of the disclosure. The objectives and other advantages of the disclosure may be realized and attained by the structure particularly pointed out in the written description and claims hereof as well as the appended drawings.

Drawings

The accompanying drawings are included to provide a further understanding of the disclosed embodiments and are incorporated in and constitute a part of this specification, illustrate embodiments of the disclosure and together with the example serve to explain the principles of the disclosure and not to limit the disclosure.

Fig. 1 is a flow chart of a method of information feedback according to an embodiment of the present disclosure;

FIG. 2 is a flow chart of a method of information feedback according to another embodiment of the present disclosure;

FIG. 3 is a flow chart of a method of information feedback according to yet another embodiment of the present disclosure;

FIG. 4 is a flow chart of a method of information reception according to an embodiment of the present disclosure;

FIG. 5 is a block diagram of an apparatus for information feedback according to an embodiment of the disclosure;

fig. 6 is a block diagram of an apparatus for information feedback according to another embodiment of the present disclosure;

fig. 7 is a block diagram of an apparatus for feeding back information according to still another embodiment of the present disclosure;

fig. 8 is a block diagram of an information receiving apparatus according to an embodiment of the present disclosure.

Detailed Description

To make the objects, technical solutions and advantages of the present disclosure more apparent, embodiments of the present disclosure will be described in detail below with reference to the accompanying drawings. It should be noted that the embodiments and features of the embodiments in the present application may be arbitrarily combined with each other without conflict.

The steps illustrated in the flow charts of the figures may be performed in a computer system such as a set of computer-executable instructions. Also, while a logical order is shown in the flow diagrams, in some cases, the steps shown or described may be performed in an order different than here.

The disclosed embodiment comprises the following parts: in the feedback of multiple resource indication information and multiple quality indication information, how to reduce feedback load and improve resource utilization may specifically include:

1. when the number of the resource indication information fed back by the terminal according to the actual measurement result can be lower than the number of the maximum resource indication information allocated by the base station, how the terminal feeds back a plurality of resource indication information and/or a plurality of quality indication information;

2. in order to save feedback bits, feeding back a plurality of indication information in a combined mode, and informing that the indication information meeting the preset characteristics in the plurality of indication information fed back in the combined mode is the index information in the plurality of indication information fed back in the combined mode; wherein the indication information includes: resource indication information, and/or quality indication information;

3. classifying the plurality of indication information, wherein different classes adopt different feedback modes for feedback; wherein the indication information includes: resource indication information, and/or quality indication information.

4. And determining the quantization precision and/or feedback load of the rest quality information according to the optimal quality indication information in the plurality of quality indication information.

Fig. 1 is a flowchart of an information feedback method according to an embodiment of the present disclosure, as shown in fig. 1, including:

step 101, determining a maximum value M _ max of indication information needing to be fed back; here, the number of the maximum indication information that needs to be fed back may be issued by the base station after being analyzed and determined by a person skilled in the art, or may be a fixed value predetermined by the base station and the terminal;

the indication information of the embodiment of the disclosure includes: resource indication information, and/or quality indication information;

102, feeding back at least one of the following information: m resource indication information and Q quality indication information; wherein M, Q is a non-negative integer less than or equal to M _ max.

The embodiment M, Q of the present invention can be set by those skilled in the art according to empirical values, or can be determined by the terminal in real time according to the measurement results.

Optionally, embodiment M of the present disclosure is equal to min (M _ max, M1); wherein, M1 is the number of resources satisfying the first predetermined characteristic among the predetermined L candidate resources, and min (M _ max, M1) represents taking the minimum value of M _ max and M1; and/or the presence of a gas in the gas,

q is equal to min (M _ max, Q1); wherein, Q1 is the number of quality indication information satisfying the second predetermined characteristic in the predetermined L quality indication information, and min (M _ max, Q1) represents taking the minimum value of M _ max and Q1;

wherein M1 and Q1 are nonnegative integers less than or equal to L.

Optionally, the resource satisfying the first predetermined characteristic in the embodiment of the present invention includes at least one of:

m1 resources are resources with quality values larger than a first preset threshold in L qualities corresponding to the L candidate resources;

the M1 resources are resources of which the correlation between the L candidate resources and the first predetermined resource is less than a second predetermined threshold;

m1 resources are resources whose difference value from the first predetermined quality among L qualities corresponding to the L candidate resources is greater than a third predetermined threshold;

optionally, the quality corresponding to the quality indication information meeting the second predetermined characteristic in the embodiment of the present invention includes at least one of the following:

the quality corresponding to the Q1 quality indication information is the quality of which the quality value is greater than the fourth predetermined threshold among the L qualities corresponding to the L candidate resources;

the quality corresponding to the Q1 quality indication information is the quality of which the correlation between the quality of the second predetermined resource and the quality of the L quality corresponding to the L candidate resources is less than the fifth predetermined threshold;

the quality corresponding to the Q1 quality indication information is the quality of which the difference value from the second predetermined quality is greater than the sixth predetermined threshold among the L qualities corresponding to the L candidate resources.

Optionally, when feeding back M resource indication information and/or Q quality indication information, the method according to the embodiment of the present disclosure further includes: feeding back one or more of the following information:

the value of M; a Q value; a first specified value representing an end of the M resource indication information; a second specified value representing the end of the Q quality indication information.

Here, the first specified value may include: a specific value predetermined by the base station and the terminal, or a numerical value determined according to the coding of the resource indication information and the like; for example, the first specified value is represented by the value L + y, y being a non-negative integer; wherein, the resource represented by the M resource indication information is selected from L resources or is represented by a valueIndicating a first specified value, although other values of the first specified value are not excluded; the base station can know the first assigned valueAnd ending the feedback of the M resource indication information, thereby being used for a scene with variable number of resource indication information fed back by the terminal. The second designated value may include: the base station and the terminal preset a specific value, or a value determined according to the coding of the quality indication information, and the base station can know the end of the Q quality indication information feedbacks after receiving the specific value, thereby being used for the scene that the number of the quality indication information feedbacks by the terminal is variable.

Optionally, the method in the embodiment of the present disclosure further includes performing joint coding on at least two of the following fed-back information: m value, M resource indication information, a first specified value, Q quality indication information and a second specified value.

Optionally, the method according to the embodiment of the present disclosure further includes at least one of:

determining the M value according to the Q quality indication information;

determining resources required for feeding back the M resource indication information according to the M value;

determining resources required for feeding back the Q quality indication information according to the Q value; here, the resource includes at least one of the following resources: time domain, frequency domain, code domain, space domain, and the number of bits occupied by the above information before channel coding.

Feeding back index information of M2 resources, of the M resources characterized by the M resource indication information, of which the quality value is lower than a seventh predetermined threshold; wherein Q is equal to the difference between M and M2;

feeding back index information of M3 resources, of the M resources characterized by the M resource indication information, of which the difference value between the quality value and the quality value of the third predetermined resource is lower than the eighth predetermined threshold; where Q is equal to the difference between M and M3.

Determining resources required for feeding back the Q quality indication information according to the Q value; here, the seventh predetermined threshold may be analyzed and determined by a person skilled in the art according to a usage condition of the resource, for example, the first predetermined threshold is a quality value agreed by the base station and the terminal, or a quality value informed by the base station to the terminal through signaling information, or a resource agreed by the base station and the terminal, the seventh predetermined threshold is a quality corresponding to the agreed resource, the base station may also inform the terminal of a resource, and the first predetermined threshold is a quality informed by the base station to the terminal;

the eighth predetermined threshold may be analytically determined by those skilled in the art according to the usage condition of the resource. For example, the quality value of the third predetermined resource is a quality value agreed by the base station and the terminal; or the base station informs the terminal of a quality value through signaling information; or the base station and the terminal appoint a resource, the first predetermined quality value is the quality corresponding to the appointed resource, the base station can also inform the terminal of a resource, and the first predetermined quality value is the quality corresponding to the resource which the base station informs the terminal of.

Optionally, the feeding back the M value in the embodiment of the present disclosure includes:

and feeding back M according to the repetition times of the M resource indication information.

determining by means of an agreed rule or signaling information: a correspondence between Q resource indication information of the M resource indication information and the Q quality indication information; wherein Q is an integer less than or equal to M;

feeding back index information of Q resource indication information corresponding to the Q quality indication information in the M resource indication information; wherein Q is an integer less than or equal to M; (ii) a

Determining by means of an agreed rule or signaling information: a correspondence between the M resource indication information and M quality indication information of the Q quality indication information; wherein Q is an integer greater than or equal to M;

feeding back index information of M quality indication information corresponding to the M resource indication information in the Q quality indication information; wherein M is less than or equal to an integer of Q.

It should be noted that, the rule or the signaling information agreed by the embodiments of the present disclosure may include: determining a corresponding relation between Q resources of the M resources and the Q quality indication information; for example, the first Q resources of the M resources correspond to the Q quality indication information in sequence.

Optionally, when Q is equal to M _ max, M is equal to 0; alternatively, when Q is equal to M _ max, M is equal to 1.

The embodiment of the present disclosure also provides a computer storage medium, in which computer-executable instructions are stored, and the computer-executable instructions are used for executing the above information feedback method.

Fig. 2 is a flowchart of a method for feeding back information according to another embodiment of the present disclosure, as shown in fig. 2, including:

step 201, feeding back C resource indication information and index information of N resources meeting predetermined characteristics in C resources;

It should be noted that, the embodiment C of the present disclosure may be preset, or may be determined by the terminal according to the measurement result.

Optionally, the index information in the embodiment of the present disclosure satisfies one of the following characteristics:

n1 resources with the best quality in the C qualities corresponding to the C resources;

reporting resources corresponding to the reference quality when the quality is reported in a differential mode;

n2 resources with the quality value lower than the ninth preset threshold in the C qualities corresponding to the C resources;

the difference value between the quality value in the C qualities corresponding to the C resources and the third preset quality is lower than N3 resources of a tenth preset threshold;

n4 resources with the quality value higher than the eleventh preset threshold in the C qualities corresponding to the C resources;

the difference value between the quality value of the C qualities corresponding to the C resources and the fourth preset quality is higher than N5 resources of a twelfth preset threshold;

n6 resources with the optimal quality in L quality resources corresponding to the predetermined L resources, wherein the C resources are selected from the L resources;

the quality indication information of the resources comprises N7 resources in the feedback information;

wherein N1, N2, N3, N4, N5, N6 and N7 are positive integers less than or equal to N.

It should be noted that, in the embodiment N of the present disclosure, one of N1, N2, N3, N4, N5, N6, and N7 may be used, or two or more of them may be used; the third predetermined quality may be a quality directly predetermined by both the transmitter and the receiver, or may be a quality predetermined by both the transmitter and the receiver only for the resource, and the third predetermined quality is a quality of the predetermined resource.

Alternatively, the disclosed embodiment N may be equal to 1.

Optionally, in the embodiment of the present disclosure, the C resource indication information satisfies at least one of the following characteristics:

the C resource indication informationA bit representation;

for M resource indication informationRepresents;

wherein, represents from L-b_iThe number of combinations of C-i resources when C-i resources are selected from the resources,representing rounding up, the C resources being selected from a predetermined number L of candidate resources, L being a positive integer greater than or equal to C, b_iIndex information of the ith resource in the L candidate resources in the C resources, b_i＜b_i+1，1≤b_i≤L。

Optionally, the feeding back the index information of the N resources in the C resources in the embodiment of the present disclosure includes:

and when the C value is larger than a first preset value, feeding back the index information.

Alternatively, embodiments of the present disclosure

The C resource indication information and the index information of the N resources meet at least one of the following characteristics:

c resource indication information and index information of N resources are fed back in one feedback information;

c resource indication information and N resource index information share a cyclic verification check code;

the C resource indication information and the index information of the N resources are fed back in one time unit.

Optionally, in the embodiment of the present disclosure, the C resource indication information and the index information of the N resources satisfy at least one of the following characteristics:

c resource indication information and index information of N resources are fed back in different feedback information;

different cyclic verification check codes are respectively adopted by the C resource indication information and the index information of the N resources;

the C resource indication information and the index information of the N resources are fed back in different time units.

Optionally, the method in the embodiment of the present disclosure further includes:

step 202, determining resources used for feeding back the index information according to the value of C;

and determining the resource used for feeding back the index value according to the value of X.

by usingThe bits represent index information of the N resources in the C resources;

wherein the functionIndicates the number of different combinations of B resources when B resources are selected from A resources,indicating rounding up a.

Fig. 3 is a flowchart of a method for feeding back information according to still another embodiment of the present disclosure, as shown in fig. 3, including:

step 301, determining first quality information;

step 302, determining quantization information of second quality information according to the first quality information;

Optionally, the quantization parameter in the embodiment of the present disclosure includes:

quantizing a mapping table referred to by the second quality information;

wherein the mapping table represents:

a mapping between index values and quality values; or,

a mapping relationship between the index value and the difference value;

the quantized second quality information belongs to a set of index values comprised by the mapping table.

It should be noted that, the mapping relationship between the index value and the quality value according to the embodiment of the present invention includes: a mapping between the index value and the quality value of the second quality information.

In addition, the calculation method of the difference value according to the embodiment of the present disclosure may include: and setting a quality value as a standard value, and subtracting the standard value from the current quality value to obtain corresponding difference values. Or setting a quality value as a standard value, and subtracting the current quality value from the standard value to obtain a corresponding difference value; wherein the current quality value is a quality value requiring feedback. The differential value of the embodiments of the present disclosure may also be referred to as a quality differential value.

Optionally, the mapping table in the embodiment of the present disclosure has the following partial or all features:

the mapping relation item contained in the mapping table is proportional to the first quality value contained in the first quality information;

the quality value contained in the mapping table is proportional to the first quality value contained in the first quality information;

the differential value included in the mapping table is proportional to the first quality value included in the first quality information.

Step 303, quantizing the second quality information according to the determined quantization information;

step 304, feeding back the quantized second quality information;

feeding back the first quality information; and/or the presence of a gas in the gas,

signaling information including first quality information is received.

determining resources required for feeding back the second quality information according to the first quality information;

it should be noted that, the larger the first quality is, the more resources are required for feeding back the second quality information.

and determining resources required for feeding back the second quality information according to the quantization information.

Fig. 4 is a flowchart of a method for receiving information according to an embodiment of the present disclosure, as shown in fig. 4, including:

step 401, receiving quantized second quality information;

step 402, determining first quality information;

step 403, determining quantization information referred to by the received quantized second quality information according to the determined first quality information;

quantizing a mapping table referred to by the second quality information;

wherein the mapping table represents:

a mapping between index values and quality values; or,

a mapping relationship between the index value and the difference value;

Step 404, determining second quality information according to the quantization information and the quantized second quality information;

receiving first quality information; and/or the presence of a gas in the gas,

transmitting signaling information including the first quality information.

Optionally, in the embodiment of the present disclosure, the second quality information and/or the quantized second quality information satisfy at least one of the following characteristics:

the quantization accuracy of the second quality information is inversely proportional to the first quality value included in the first quality information;

determining the resource where the quantized second quality information is located according to the first quality information;

and determining the resource of the quantized second quality information according to the quantization information. Optionally, the mapping table in the embodiment of the present disclosure has the following partial or all features:

The embodiment of the disclosure also provides a computer storage medium, in which computer-executable instructions are stored, and the computer-executable instructions are used for executing the above information receiving method.

Fig. 5 is a block diagram of a structure of an apparatus for feeding back information according to an embodiment of the present disclosure, as shown in fig. 5, including: a first unit and a second unit; wherein,

wherein M, Q is a non-negative integer less than or equal to the M _ max.

Optionally, the second unit in the embodiment of the present disclosure is further configured to feed back one or more of the following information:

the value of M; the Q value; a first specified value representing an end of the M resource indication information; a second specified value representing an end of the Q quality indication information.

Optionally, the apparatus in this embodiment of the present disclosure further includes a third unit, where the third unit is configured to jointly encode one or more of the following information in the second unit:

an M value, the M resource indication information, the first specified value, the Q quality indication information, the second specified value.

Fig. 6 is a block diagram of an apparatus for feeding back information according to another embodiment of the present disclosure, as shown in fig. 6, including: a fourth unit for generating a second signal based on the first signal,

Optionally, the N resources that satisfy the predetermined characteristic in the embodiment of the present disclosure include at least one of the following resources:

the N1 resources with the optimal quality in the C qualities corresponding to the C resources;

n2 resources with the quality value lower than a ninth preset threshold in the C qualities corresponding to the C resources;

the difference value between the quality value of the C qualities corresponding to the C resources and the third preset quality is lower than N3 resources of a tenth preset threshold;

wherein N1, N2, N3, N4, N5, N6 and N7 are positive integers less than or equal to N. Optionally, the apparatus in this embodiment of the present disclosure further includes a fifth unit, configured to:

when the C value is larger than a first preset value, feeding back the index information; and/or the presence of a gas in the gas,

and determining resources used for feeding back the index information according to the C value.

Fig. 7 is a block diagram of an apparatus for feeding back information according to still another embodiment of the disclosure, as shown in fig. 7, including: a sixth unit, a seventh unit, an eighth unit, and a ninth unit; wherein,

the sixth unit is configured to: determining first quality information;

Optionally, the apparatus in the embodiment of the present disclosure further includes a tenth unit, configured to:

receiving signaling information including the first quality information.

Fig. 8 is a block diagram of an information receiving apparatus according to an embodiment of the disclosure, as shown in fig. 8, including: a first module, a second module, a third module and a fourth module; wherein,

the first module is to: receiving the quantized second quality information;

the second module is to: determining first quality information;

quantizing a mapping table referred to by the second quality information;

wherein the mapping table represents:

a mapping between index values and quality values; or,

a mapping relationship between the index value and the differential value.

The fourth module is to: determining second quality information according to the quantized second quality information received by the quantization information;

an embodiment of the present disclosure further provides a terminal, including: a memory and a processor; wherein,

the processor is configured to execute program instructions in the memory;

wherein M, Q is a non-negative integer less than or equal to M _ max;

the processor is configured to execute program instructions in the memory;

determining first quality information;

feeding back the quantized second quality information;

the processor is configured to execute program instructions in the memory;

receiving the quantized second quality information;

determining first quality information;

The method of the embodiment of the present disclosure is described in detail below by using application examples, which are only used for illustrating the present disclosure and are not used for limiting the protection scope of the present disclosure.

Application example 1

In the present application example, the base station indicates to the terminal that the maximum M _ max measurement reference signal resources among the L measurement reference signal resources need to be selected at most and reported to the base station; or, the base station and the terminal may agree that the terminal may select at most M _ max sounding reference signal resources from the L sounding reference signal resources to report to the base station. The terminal only reports M pieces of quality indication information corresponding to the resource indication information of the M pieces of measurement reference signal resources and the resource indication information of the M pieces of measurement reference signals according to the actual measurement condition; or, the terminal may only report resource indication information of M sounding reference signals and Q quality indication information corresponding to (Q) sounding reference signal resources according to an actual measurement condition; wherein M, Q is an integer less than or equal to M _ max. Since M, Q is allowed to be less than M _ max, the terminal needs to feed back M, Q information to the base station. For this purpose, the following can be used:

the first method is as follows: the terminal has a bit field in the feedback information, and the bit field is used for indicating the M and/or Q value; for example, the information field fed back by the terminal is as follows [ M value (occupancy)Bit), M resource indication information, Q valueBit), Q quality indication information]Alternatively, when the contract M and Q are always the same, only the value M may be fed back, that is, for example, the feedback information is (value M) (occupation of value M)Bits), M resource indication information, M quality indication information).

Optionally, the bit number occupied by the M resource indication information may be determined according to the M value; for example, the number of bits occupied by the M resource indication information isAnd (4) a bit. Since the base station does not determine the value of M actually selected by the terminal, it will followAllocating feedback resources to the terminal, when M is less than M _ max, ifIs less thanThen can be used forThe bits are repeated to formA bit; such asIs a bit of 3 bits, and the bit is,is 8 bits, then willRepeating for 3 times, and discarding the last bit of the last repetition; wherein, M resourcesIs selected from the L resources.

The second method comprises the following steps: the terminal uses a first designated value to represent the end character of M resource indication information in the feedback information, and/or uses a second designated value to represent the end character of Q quality indication information in the feedback information; for example, the information fed back by the terminal is (M resource indication information, an end indicator of the resource indication information, Q quality indication information, and an end indicator of the quality indication information); optionally, the bit number occupied by each resource indication information in the M resource indication information is the same as the bit number occupied by the end symbol of the resource indication information; for example, each resource indication information is usedRepresented by a single bit, alsoThe bits represent an end of resource indication information; for example, L + y represents the end of the resource indicator; wherein y is a non-negative integer, i.e. the L value represents the end of the M resource indication information; for example, if L is 7 and M is 2, the terminal feeds back the resource indication information of 2 selected resources using 23 bits, and then uses 3 bits and has a value of 7 to indicate that the M resource indication information ends, that is, the last bit of the M resource indication information always follows the end of one resource indication information.

TABLE 1

Index value	Quality value (RSRP)
		0	-140dBm
1	-139dBm
		…	…
96	-44dBm
		97	Quality information end symbol

TABLE 2

Optionally, the number of bits occupied by each of the Q pieces of quality indication information is the same as the number of bits occupied by the quality indication information end symbol; for example, for each quality indication informationThe bit indicates that the quality indication information end symbol is occupiedA bit; wherein, P is the number of index values included in the mapping table between the index value and the quality value referred by the quality indication information; for example, a mapping table between index values and quality values is shown in table 1 (table 1 quality values take Reference Signal Received Power (RSRP) as an example); wherein, P is 97. Optionally, the end of the quality indication information is represented by an index P value, i.e. P + z value represents the end of the resource indication information, z being a non-negative integer. I.e. the table shown in table 2 is established, i.e. the quality indication information end-pointer and the quality indication information are jointly coded at this time. I.e. including a specific mapping item in the mapping table between the index value and the quality value referred to by the quality indication informationAnd the index value in a specific mapping item represents a terminator of Q resource indication information. The quality indication end in table 2 may also represent a resource indication end when the reservations M, Q are always equal.

The third method comprises the following steps: the terminal feeds back M resource indication information, and the base station blindly detects different M values; for example, because the base station does not know the number of the actual feedback resources of the terminal, the resources are allocated according to the maximum M _ max, the terminal determines the number of bits required by the M resource indication information according to the value of the actual feedback M, and when M is smaller than M _ max, the number of bits occupied by the M resource indication information is less than the number of bits occupied by the M _ max resource indication information, and the terminal feeds back according to the number of bits occupied by the M resource indication information; due to the CRC protection, the base station can know the M value selected by the terminal through blind detection. And similarly, the terminal feeds back Q quality indication information, and the base station performs blind detection to obtain the Q value selected by the terminal. That is, M, Q values are not fed back in the feedback information of the terminal, the base station obtains M values by blind-checking M resource indication information, and/or obtains Q values by blind-checking Q quality indication information, or obtains a combined value of M, Q by blind-checking M resource indication information and Q quality indication information. That is, the feedback information of the terminal may occupy only a part of the feedback resources allocated by the base station. The feedback resource may be a Physical Uplink Control Channel (PUCCH), a Physical Uplink Shared Channel (PUSCH), etc. Optionally, at this time, the number of bits occupied by the M resource indication information corresponding to different M values is different, and the number of bits occupied by the Q quality indication information corresponding to different Q values is different.

The method is as follows: the terminal feeds back an M value through the repetition times of the sending bits; for example, because the base station does not know the number of the actual feedback resources of the terminal, the resources are allocated according to the maximum M _ max, the terminal determines the number of bits required by the M resource indication information according to the value of the actual feedback M, and when M is smaller than M _ max, the number of bits occupied by the M resource indication information is less than the number of bits occupied by the M resource indication information, and at this time, the terminal expands the number of bits occupied by the M resource indication information to the number of bits occupied by the M _ max resource indication information through bit repetition. For example, the number of bits occupied by the M _ max resource indication information is 12, and when the number of bits occupied by the M resource indication information is 6, the M resource indication information may be repeated twice to form 12 bits; alternatively, the number of bits occupied at this time is the number of bits after channel coding (the number of bits occupied in the foregoing description may be the number of bits before channel coding or the number of bits after channel coding). That is, each repeated segment of the M resource indication information is protected by a CRC check code. That is, the feedback information of the terminal occupies all the resources of the feedback resources allocated by the base station, and the coverage performance is improved to some extent by repetition.

The fifth mode is as follows: feeding back Q quality indication information; when the quality indication information is lower than a preset threshold, the resource indication information corresponding to the quality indication information is not fed back; for example, if only 3 pieces of the Q pieces of quality information are higher than the predetermined value, 3 pieces of resource indication information are fed back in the resource indication field value, that is, M is 3, and the Q pieces of quality indication information precede the M pieces of resource indication information.

Optionally, the M is a minimum value between M _ max and M1, where M1 is a number of the L sounding reference signal resources that satisfy a first predetermined characteristic that satisfies at least one of the following characteristics: the M1 resources are resources whose quality values are greater than a predetermined threshold among L qualities corresponding to the L candidate resources; the M1 resources are resources whose correlation between the L candidate resources and a predetermined resource is less than a predetermined threshold; the M1 resources are resources whose difference from a predetermined quality among L qualities corresponding to the L candidate resources is greater than a predetermined threshold, where M1 is a non-negative number.

Optionally, Q is a minimum value between M _ max and Q1, where Q1 is the number of quality information satisfying a second predetermined characteristic among L quality information corresponding to the L measured reference signal resources, and the second predetermined characteristic satisfies at least one of the following characteristics: the quality corresponding to the Q1 quality indication information is the quality of which the quality value is greater than the fourth predetermined threshold among the L qualities corresponding to the L candidate resources; the quality corresponding to the Q1 quality indication information is the quality of which the correlation with the quality of the predetermined resource is less than a fifth predetermined threshold in the L qualities corresponding to the L candidate resources; the quality corresponding to the Q1 quality indication information is the quality of which the difference value from the second predetermined quality is greater than the sixth predetermined threshold among the L qualities corresponding to the L candidate resources.

Similarly, the L srs resources may also be L synchronization signals.

Application example 2

In this application example, the base station allocates L sounding reference signal resources to the terminal, and indicates that the terminal needs to select C resources from the L sounding reference signal resources, and the terminal needs to feed back resource indication information of the selected C resources and C quality indication information corresponding to the C resources to the base station. The optimal value (for example, the maximum value) in the C quality indication information is fed back in an absolute value mode, the rest quality indication information in the C quality indication information is fed back in a differential mode, and the reference quality of the differential quality feedback is the optimal quality in the C quality indication information.

The indication information of the C resources indicates index information of the selected C resources in L sounding reference signal resources configured by the base station. Optionally, the L measurement reference signal resources are channel state information reference symbol (CSI-RS) resources, and the resource indication information is CRI (CSI-RS resource indicator).

For saving bits, the C resource indication information is usedA bit representation;

the C resource indication informationRepresents;

wherein, represents from L-b_iThe number of different combinations of C-i resources when C-i resources are selected from the resources,representing rounding up, the C resources being selected from a predetermined number L of candidate resources, L being a positive integer greater than or equal to C, b_iIndex information of the ith resource in the L candidate resources in the C resources, b_i＜b_i+1，1≤b_i≤L。

Although the combination mode is adopted compared with each resourceThe feedback mode of bits saves feedback overhead, but the above combined feedback mode needs to satisfy b_i＜b_i+1Therefore, the quality of the fed back first CRI is not necessarily the resource with the best quality among the C resources, and when C quality indication information corresponding to the C resources needs to be further fed back. Feeding back the optimal quality in the C quality indication information in an absolute value mode; otherwise, the quality reference is given to the optimal quality using differential feedback. Therefore, after reporting the C resource indication information in a combined manner, index information of the resource corresponding to the optimal quality indication information in the C resource needs to be further fed back; for example, usingAnd index information of the resource indication information corresponding to the optimal quality indication information in the C resource indication information fed back by the bit feedback combination mode is obtained in the C resources, the optimal quality indication information is fed back by adopting an absolute value mode, for example, the optimal quality indication information corresponds to the first quality indication information in the C quality indication information, and the rest C-1 resource indication information and the C-1 quality indication information are in one-to-one correspondence. For example, the feedback information of the terminal includes the following information [ C resource indication information (occupation)One bit), index information (occupied) of resource corresponding to the most excellent quality indication information among C quality indication information corresponding to C resources among C resourcesOne bit), the most optimal quality indication information (occupying 7 bits, using absolute value feedback), C-1 quality indication information (each quality indication information using differential feedback, occupying 4 x (C-1) bits)]. The terminal feeds back index information of N resources meeting the preset characteristics in the fed back C resource indication information; in this application example, N may be set to 1, and the resource that satisfies the predetermined characteristic is a resource corresponding to the optimal quality in the C quality indication information corresponding to the C resources.

The quality indication information of the embodiment of the present disclosure may be one of the following quality indication information: channel Quality Indication (CQI), RSRP, Reference Signal Received Quality (RSRQ), signal-to-noise ratio (SINR), block error rate (BLER).

Similarly, the L srs resources may also be L synchronization signals.

In the above embodiment, the C resource indication information is reported in a combined manner, and N resource indication information satisfying the predetermined characteristic in the C resource indication information reported in the combined manner is further reported. Optionally, at this time, the C resource indication information is not reported in a combined manner, so that the C resource indication information and the C quality indication information can be in one-to-one correspondence.

Application example 3

In the application example, the base station allocates L sounding reference signal resources to the terminal, and indicates that the terminal needs to select C resources from the L sounding reference signal resources, and the terminal needs to feed back resource indication information of the selected C resources and Q quality indication information corresponding to the Q resources to the base station; wherein Q is an integer less than or equal to C.

Optionally, the terminal further needs to feed back, to the base station, resources that satisfy the predetermined characteristics in the C resource indication information; for example, the predetermined characteristic is that the quality corresponding to the resource is lower than a predetermined threshold; or the difference between the quality corresponding to the resource and the predetermined quality is less than a predetermined threshold.

For example, the terminal feeds back C optimal resources in a combined manner; optionally, the terminal further indicates, through the C bit, index information of the N resources satisfying the predetermined characteristic in the C resources in the fed back optimal C resources; optionally, the terminal only needs to feed back quality indication information corresponding to the remaining C-N resources, that is, Q is equal to C-N; wherein, the C-N resource indication information except the N resource indication information in the C resource indication information corresponds to the C-N quality indication information in sequence.

In another embodiment of the present application example, when N resources satisfying the predetermined characteristic are selected from the C resources, and when the optimal quality in X ═ C-N resources excluding the N resources among the C resources is fed back by using an absolute value and the rest of the qualities are fed back by using a relative value, index information of the optimal quality in the X resources among the X resources, that is, feedback information of the terminal may include information fields [ C resource indication information (occupied by C resources) ]One bit), indexing information (occupying C bits) in the C resources for N resources with quality lower than a predetermined threshold, and indexing information (occupying X resources) in the X resources for the resource with the most optimal quality among the remaining X-C-N resourcesOne bit), the most optimal quality indication information (taking 7 bits by using absolute value feedback) in the X resources, and the X-1 quality indication information (taking 4X (X-1) by using relative value feedback) in the X resources]. Wherein the C resources are characterized by the C resource indication information.

In the above manner, N resource indication information with poor quality is fed back, but of course, in the C resource indication information fed back, the application example may directly feed back the indication information of N resources with quality higher than the predetermined threshold (or feed back the indication information of X resources with quality higher than the predetermined threshold, in the C resource indication information), that is, the feedback information includes the following information fields: [ C resource indication information (occupancy)Bits), the information is indexed in the C resources by the N resources with the quality higher than the predetermined threshold among the C resources (occupying the C bits), and the information is indexed in the N resources by the resource with the most excellent quality among the N resources (occupying the C bits)Bits), the most optimal quality indication information (7 bits occupied by absolute value feedback) among the N resources, and the quality indication information (4X (X-1) bits occupied by relative value feedback) of the N-1 resources.

In an implementation manner of this embodiment, the feedback information includes the following three items: [ C resource indication information; index information of N7 resources satisfying a first predetermined characteristic among C resources characterized by C resource indication information in the C resources; index information of N8 resources among the C resources characterized by the C resource indication information, wherein the N7 and the N8 are integers less than or equal to C, and satisfy a second predetermined characteristic.

Application example 4

In this application example, the base station allocates L sounding reference signal resources to the terminal, and indicates that the terminal needs to select M resources from the L sounding reference signal resources, and the terminal needs to feed back resource indication information of the selected M resources and M quality indication information corresponding to the M resources to the base station. The maximum value of the M quality indication information is fed back in an absolute value mode, the rest quality indication information of the M quality indication information is fed back in a differential mode, and the reference quality fed back in the differential mode is the optimal quality of the M quality indication information.

The feedback cost is saved by adopting a combination mode to feed back the indication information of the plurality of resources, but the resource indication information in the combination mode needs to meet the requirement of index sequence arrangement, so that the resource with the optimal quality in the plurality of resources needs to be identified, the optimal quality indication information is fed back in an absolute value mode, and the rest quality indication information is fed back in a differential mode according to the optimal quality.

For this, the resource indication information corresponding to the optimal quality and the rest resource indication information can be divided into independent bit fields for feedback; for example, using(index information of resources indicating the optimal quality among L resources) resource indication information indicating the optimal quality is represented by a plurality of bits, and the resource indication information is usedThe bits represent index information of the rest M-1 resources in L-1 resources (namely, the rest L-1 resources except the resource corresponding to the optimal quality in the L measurement reference signal resources); wherein,each bit takes the value ofWherein Represents a group consisting of L-1-b_iThe number of different combinations of M-1-i resources when M-1-i resources are selected from the resources,meaning rounding up, b_i＜b_i+1,1≤b_i≤L-1,b_iIndex information representing the ith resource in the M-1 resources in the L-1 resources;

or, adopt(index information of resources indicating the optimal quality among L resources) resource indication information indicating the optimal quality is represented by a plurality of bits, and the resource indication information is usedOne bit represents index information of the remaining M-1 resources among the L resources. Wherein,each bit takes the value ofWherein Represents from L-b_iThe number of different combinations of M-1-i resources when M-1-i resources are selected from the resources,meaning rounding up, b_i＜b_i+1,1≤b_i≤L,b_iIndex information representing the ith resource in the M-1 resources in the L candidate resources;

that is, the resource indication information with the optimal quality is fed back by adopting a single bit field, and the resource indication information of the rest M-1 is fed back by adopting the above combination mode.

Application example 5

In this embodiment, the terminal feeds back M resource indication information and M quality indication information to the base station, and the correspondence between the M resource indication information and the M quality indication information needs to be determined.

Optionally, the M resource indication information and the M quality indication information are in one-to-one correspondence. The correspondence between the M resource indication information and the M quality indication information may be determined by one of the following ways:

the first method is as follows: the M resource indication information and the M quality indication information correspond to each other in sequence; specifically, taking M ═ 2 as an example, the feedback information is resource indication information { CRI1, CRI2} first, and then M pieces of quality indication information { RSRP1, RSPR2}, then RSRP1 is the quality indication information of CRI1, and RSPR2 is the quality indication information of CRI 2.

The second method comprises the following steps: a resource indication information terminal corresponding to the optimal quality in the M quality indication information informs the base station through a specific mode, and the optimal quality indication information is fed back at a specific position in the M quality indication information; for example, the first quality indication information is the optimal quality indication information, and the remaining M-1 quality indication information and the remaining M-1 resource indication information correspond to each other in sequence; for example, reporting the resource indication information of M resources in a combined manner, i.e. for the resource indication information of M resourcesThe number of bits indicates that the number of bits,each bit takes the value ofWherein Represents from L-b_iThe number of combinations of M-i resources when M-i resources are selected from the resources,representing rounding up, the M resources being selected from a predetermined number L of candidate resources, L being a positive integer greater than or equal to M, b_iIndex information of ith resource in L candidate resources in M resources, b_i＜b_i+1，1≤b_iLess than or equal to L. E.g. b_iIs CRI or b_i-1 is CRI (CSI-RS resource indicator); let L be 64, M be 4; terminal adoptsThe bit and the above combination mode feedback b₁,b₈,b₁₇,b₅₉The resource selected for it, because b needs to be satisfied in the above combined feedback_i＜b_i+1Therefore, the first CRI fed back does not necessarily correspond to the CRI with the best quality, so the terminal needs to further feed back the selected b to the base station₁,b₈,b₁₇,b₅₉Of four resources, b₁₇CRI corresponding to optimal quality, then RSRP1 in { RSRP1, RSPR2, RSRP3, RSPR4} fed back by base station corresponds to b₁₇The rest M-1 resource indication information and the M-1 quality indication information correspond to each other in sequence, namely b₁The quality indication information corresponding to the characterized measurement reference signal resource is RSRP2, b₈The quality indication information corresponding to the characterized measurement reference signal resource is RSRP3, b₅₉The quality indication information corresponding to the characterized measurement reference signal resource is RSRP 4.

In the foregoing manner, the number of the resource indication information and the quality indication information is the same, and this embodiment does not exclude a feedback manner in which the terminal feeds back M resource indication information and Q quality indication information, and there is a correspondence relationship between the M resource indication information and the Q quality indication information that can be determined as follows.

The third method comprises the following steps: feeding back M resource indication information and Q quality indication information, and further feeding back index information of the Q resource indication information corresponding to the Q quality information in the M resource indication information; wherein M is greater than or equal to Q; for example, 2 pieces of quality indication information and 4 pieces of resource indication information are fed back, and index information of 2 pieces of resource indication information corresponding to the 2 pieces of quality indication information in the fed back 4 pieces of resource indication information is fed back; for example, 4 bits are used for feedback, so that it is known which 2 of the fed-back 4 resource indication information corresponds to the quality of the resource.

The method is as follows: feeding back M resource indication information and Q quality indication information, and further feeding back index information of the M quality indication information corresponding to the M resource indication information in the Q quality indication information; wherein M is less than or equal to Q.

Application example 6

In this application example, the base station allocates L sounding reference signal resources to the terminal, and indicates that the terminal needs to select M resources from the L sounding reference signal resources, and the terminal needs to feed back the indication information of the selected M resources and M quality indication information corresponding to the M resources to the base station. The reference quality of the differential parameter quality feedback is the optimal quality of the M quality indication information.

Optionally, a mapping table between an index value and a difference value referred to by the quality indication information fed back in the differential mode is determined according to a value of the quality indication information fed back in the absolute value feedback mode.

For example, the mapping table referred to by the quality indication information fed back by the absolute value feedback method is shown in table 3, the number of bits used for differential feedback is a bits, or the mapping table of the index value and the differential value referred to by the differential feedback method includes a mapping item of 2^aAnd (4) items. The first 2 except the last entry in the mapping table^a-the i-th (i counts from 1) of the 1 entries corresponds to a differential value ofWherein RSRP_bestIndicating the optimal quality, RSRP, for the terminal using absolute value feedback_minIndicating a predetermined minimum quality threshold, e.g. the minimum value in table 3, i.e. RSRP, may be used_minQuality indication information at-140 dBm, i.e. below-140 dBm, is not in the range of interest, although other RSRPs are not excluded_minAnd (4) taking the value. Specifically, for example, a is 4, M is 4, and the feedback of the optimal quality indication information in the absolute value manner adopts 7-bit feedback and refers to the mapping table in table 3. If the index value of the bit field feeding back the optimal quality 7 is 20 (that is, the fed back quality indication information is one index value in the mapping table), the optimal quality is-120 dBm by referring to table 3, and the mapping table between the referenced index value and the differential value is fed back by the rest M-1 quality in a differential way as shown in table 4; wherein the step size of the increment is

If the index value of the bit field feeding back the optimal quality of 7 bits is 90 and the optimal quality is-50 dBm by referring to the table 3, the mapping table between the index values and the differential values referred by the quality indication information with the differential feedback for the remaining M-1 qualities is shown in the table 5, wherein the incremental step size is

Index value	Quality value (RSRP)
		0	-140dBm
1	-139dBm
		…	…
96	-44dBm

TABLE 3

Index value	Differential value (RSRP)
		0	-4/3dBm
1	-2*4/3dBm
		…	…
14	-15*4/3dBm
		15	Less than-15 x 4/3dBm

TABLE 4

Or, the incremental step size of the differential feedback is:wherein step₀Indicating a predetermined differential feedback accuracy, or a predetermined step size of the differential accuracy increase by 1 for an index value of the differential feedback, e.g. step₀1 dBm. In tables 4 to 5, the difference values are all negative values, i.e., the difference value is equal to the current quality — the reference quality, and equivalently, the difference value may be positive values, i.e., the difference value is equal to the reference quality — the current value. In short, in the present embodiment, the differential feedback accuracy is determined based on the value of the reference quality at the time of differential feedback. Wherein the reference quality at the time of the differential feedback indicates that the differential quality of the differential feedback is a difference between the current quality and the reference quality. The above determination of the differential feedback accuracy by the value of the reference quality corresponding to the differential feedback is only an example, and this embodiment does not exclude other embodiments in which the differential feedback accuracy is determined according to the value of the reference quality during the differential feedback.

Index value	Differential value (RSRP)
		0	-6dBm
1	-2*6dBm
		…	…
14	-15*6dBm
		15	Less than-15 x 6dBm

TABLE 5

Alternatively, the reference quality indication information fed back differentially may also be notified to the terminal by the base station.

Application example 7

In this embodiment, the base station allocates L srs resources to the terminal, and indicates that the terminal needs to select M resources from the L srs resources, and the terminal needs to feed back the indication information of the selected M resources and M quality indication information corresponding to the M resources to the base station. The reference quality of the differential parameter quality feedback is the optimal quality in the M quality indication information.

Optionally, a mapping table between an index value and a difference value referred to by the quality indication information fed back in the differential mode is determined according to a value of the quality indication information fed back in the absolute value feedback mode. Or determining the bit number occupied by one quality indication information fed back differentially according to the value of the quality indication information fed back in the absolute value feedback mode. For example, as shown in table 5, a mapping table between the index value referred to when feeding back the quality indication information as an absolute value and the quality indication information divides 97 index values into 3 sections {0,1, …,33}, {34,35, …,67}, {68,69, …,96}, when the index value of the absolute value feedback is in the first interval {0,1, …,33}, one quality indication information of the differential feedback occupies 3 bits, for example, a mapping table between the index value and the differential value referred to by the differential feedback is shown in table 6, when the index value of the absolute value feedback is in the second section {34,35, …,67}, one quality indication information of the differential feedback occupies 4 bits, as shown in table 7, when the index value of the absolute value feedback is in the third section {68,69, …,96}, one quality indication information of the differential feedback occupies 5 bits, as shown in table 8.

The mapping relationship table between the index value and the difference value in tables 7 to 9 is only an example, and the present embodiment does not exclude other mapping relationship manners.

Index value	Quality value (RSRP)
		0	-140dBm
1	-139dBm
		…	…
96	-44dBm

TABLE 6

Index value	Differential value (RSRP)
		0	-1dBm
1	-2dBm
		2	-3dBm
3	-4dBm
		4	-5dBm
5	-6dBm
		6	-7dBm
7	Less than or equal to-8 dBm

TABLE 7

Index value	Differential value (RSRP)
		0	-1dBm
1	-2dBm
		2	-3dBm
3	-4dBm
		4	-5dBm
5	-6dBm
		6	-7dBm
…
		15	Less than or equal to-15 dBm

TABLE 8

Index value	Differential value (RSRP)
		0	-1dBm
1	-2dBm
		2	-3dBm
3	-4dBm
		4	-5dBm
5	-6dBm
		6	-7dBm
…
		32	Less than or equal to-32 dBm

TABLE 9

In a word, determining the mapping relation between the index value referred by the differential feedback and the differential value according to the reference quality value referred by the differential feedback; optionally, the bit number required for differentially feeding back one quality indication message is determined according to the reference quality value referred by the differential feedback. Although the reference quality of the differential feedback in the above embodiment is the optimal quality indication information fed back by the terminal, this embodiment does not exclude that the reference quality of the differential feedback is notified to the terminal by the base station.

Application example 8

In the present application example, the first quality is an optimal value, and the feedback accuracy or the feedback load of the remaining qualities is determined according to the optimal quality. For example, the larger the quality value of the optimal quality, the lower the feedback accuracy of the remaining qualities, or the larger the feedback load of the remaining qualities. At this time, the optimal quality and the rest of the qualities can be fed back in an absolute value mode, or the optimal quality is fed back in an absolute value mode, and the rest of the qualities are fed back in relative values.

Application example 9

In this application example, the terminal performs the following steps:

the method comprises the following steps: determining first quality information;

step two: determining quantization information of the second quality information according to the first quality information;

step three: quantizing the second quality information according to the determined quantization information;

step four: feeding back the quantized second quality information; wherein the quantization information comprises part or all of the following: quantization method, quantization parameter.

Wherein quantization represents the process of digitizing a continuous quantity;

the quantization method includes a scalar quantization method, a vector quantization method, a quantization model (which may also be referred to as a quantization function), and the like, and the quantization parameter includes one or more of the following parameters: quantization step size, related parameters of the probability density function PDF of the quantized quantity, the number of quantized values (for example, there are 64 quantized values in total after quantization, i.e., the quantized values can be fed back by 6 bits), and related parameters of vector quantization. The quantization model represents that continuous variables needing to be quantized are represented as a function of one or more parameters, such as y ═ f (x1, x2), where f (x1, x2) represents a predetermined function with respect to parameters x1, x2, the value of the continuous quantity needing to be quantized is y0, the above formula is substituted to obtain y0 ═ f (x1, x2) to obtain values of x1, x2, the values of { x1, x2} are fed back to the base station, and the base station substitutes { x1, x2} into formula f (x1, x2) to obtain quantized quantity y 0.

The above are only examples, and the order of the front and back of each other is not strictly limited. For example, the first quality is the optimal quality, the rest qualities are in a differential feedback mode, and optionally, the reference quality of the differential feedback is the first quality. Or the first quality is an optimal value, and the rest qualities are fed back by absolute values.

The quantization parameter may also include a mapping relationship between the index value and the quality value, and the terminal refers to the mapping table, finds the index value corresponding to the quantized second quality information in the mapping table, and feeds back the index value to the base station, that is, the quantized second quality information belongs to the set of index values included in the mapping relationship.

Optionally, determining resources required for feeding back the quantized second quality information according to the first quality information, and/or determining resources required for feeding back the quantized second quality information according to the quantization information; for example, the larger the first quality information is, the more resources are required for feeding back the quantized second quality information; or the finer the quantization precision is, the more resources are required for feeding back the quantized second quality information.

Application example 10

In the present application example, an information feedback method is described, including: determining M pieces of indication information;

dividing the M pieces of indication information into G types;

the G-type indication information corresponds to G feedback bit fields one by one;

feeding back the G feedback bit fields.

Wherein the indication information comprises resource indication information and/or quality indication information.

Optionally, each feedback bit field of the G feedback bit fields satisfies the following characteristics:

each bit in the feedback bit field is derived from g pieces of indication information associated with the feedback bit field; wherein g is an integer greater than or equal to 1.

Or, optionally, the G feedback bit fields at least include a first feedback bit field and a second feedback bit field, where each bit in the first feedback bit field is obtained according to one piece of indication information in the first type of indication information, each bit in the second feedback bit field is obtained according to s pieces of indication information included in the second type of indication information, and s is an integer greater than or equal to 1.

The first feedback bit field corresponds to the first type of indication information, and the second feedback bit field corresponds to the second type of indication information.

Optionally, the M pieces of indication information are classified into G classes according to at least one of the following information: according to the quality information corresponding to the indication information; difference information of quality information corresponding to the indication information and the preset quality; the comparison relation between the quality information corresponding to the indication information and a preset threshold; sorting information according to the quality information corresponding to the indication information; when the indication information is resource indication information, the quality information corresponding to the indication information is quality information corresponding to the resource represented by the resource indication information.

Specifically, for example, G ═ 2, the first feedback bit field includes N resource indication information, and the second feedback bit field includes resource indication information corresponding to M-N resources; wherein the N resources satisfy at least one of the following characteristics: the N resources are N resources with the optimal quality in M qualities corresponding to the M resources; the quality of the N resources is a reference quality when the quality is reported in a differential mode; the N resources are N resources of which the quality values are lower than a preset threshold in M qualities corresponding to the M resources; the N resources are N resources of which the difference value between the quality value and the preset quality in M qualities corresponding to the M resources is lower than a preset threshold; the N resources are N resources with the quality value higher than a preset threshold in M qualities corresponding to the M resources; the N resources are N resources, wherein the difference value between the quality value and the preset quality in M qualities corresponding to the M resources is higher than a preset threshold; the N resources are L resources with the optimal quality in L qualities corresponding to the L resources;

optionally, L ═ 64, M ═ 8, and N ═ 1, that is, the terminal needs to select 8 resources from L candidate resources; optionally, the selected 8 resources are divided into two categories, where the first category includes a resource representing the resource with the best quality among the 8 resources, and the resource is usedBit representation corresponding to the first feedback bit field, the second feedback bit field representing the selected remaining 7 resource indication informationOne bit represents, corresponding to the second feedback bit field, the value of the second feedback bit field at this time beingRepresents; wherein Represents from L-b_iThe number of combinations of M-N-i resources when M-N-i resources are selected from the resources,representing rounding up, the M resources being selected from a predetermined number L of candidate resources, L being a positive integer greater than or equal to M, b_iIndex information of the ith resource in the L candidate resources in the M-N resources, b_i＜b_i+1，1≤b_i≤L。

Alternatively, the second feedback bit field is usedThe value of the second feedback bit field is thenRepresents;

wherein, represents a group consisting of L-1-b_iThe number of combinations of M-N-i resources when M-N-i resources are selected from the resources,indicating rounding up, said M resources being selected from a predetermined number L of candidate resourcesL is a positive integer greater than or equal to M, b_iIndex information of the ith resource in the L candidate resources in the M-N resources, b_i＜b_i+1，1≤b_i≤L。

Application example 11

In this application example, a terminal needs to feed back multiple CRIs and quality information corresponding to the multiple CRIs to a base station, and it is necessary to ensure that a channel coding rate of the CRIs is lower than a channel coding rate corresponding to the quality information; wherein, the channel coding rate represents the information bit number before channel coding divided by the Resource Element (RE) number occupied by the information; wherein, the RE corresponds to one subcarrier in a time domain equal to a time-duration frequency domain of one OFDM symbol.

Application example 12

In this application example, the terminal needs to feed back the multiple CRIs and the quality information corresponding to the multiple CRIs to the base station, and determines the multiple CRIs and the encoding modes of the quality information corresponding to the multiple CRIs according to the channel where the feedback information is located. For example, when feeding back on a Physical Uplink Control Channel (PUCCH), multiple CRIs and quality information corresponding to the multiple CRIs are placed in one coding block, thereby saving CRC overhead, and when feeding back on a Physical Uplink Shared Channel (PUSCH), multiple CRIs are placed in a first coding block corresponding to a first CRC, and quality information corresponding to the multiple CRIs is placed in a second coding block corresponding to a second CRC.

Application example 13

In this application example, the terminal needs to feed back the multiple CRIs and the quality information corresponding to the multiple CRIs to the base station, and when the allocated feedback resources are not matched with the feedback resources needed for feeding back the multiple CRIs and the quality information corresponding to the multiple CRIs, a discard principle needs to be determined. One of the following rejection principles may be employed.

Principle 1 (alternatively referred to as feedback priority) is discarded, and the feedback priority is fed back in a manner that CRI is first and then RSRP is from top to bottom. Non-feedback is easier to discard the lower the feedback priority, and less easy to discard the higher the feedback priority. For example, CRI1, CRI2,... CRIN, RSRP1, RSRP2,... and RSRPN need to be fed back, and if RSRP1, RSRP2,. RSRPN are sorted from large to small, the feedback priority goes from high to low as shown in table 10, and the granularity is discarded as one Box (Box).

Watch 10

Rejection principle 2: discarding according to the size of RSRP, the larger the RSRP, the CRI and RSRP are kept earlier, for example, the feedback priority is from high to low as shown in table 11, and the discarding granularity is one Box;

TABLE 11

Rejection principle 3: n (CRI, RSRP) are sorted according to the size of RSPR, and are divided into multiple groups at equal intervals, and discarded according to groups, for example, the feedback priority is from high to low as shown in table 12, and divided into two groups (i.e., every 2 CRI are groups, and the feedback priority is obtained from high to low according to RSRP in a group), and the discard granularity is one Box:

TABLE 12

Application example 14

In this application example, the base station configures L sounding reference signal resources for the terminal, and the terminal feeds back M resource indication information and Q quality indication information to the base station.

When Q is L, M is 0; that is, only the quality indication information is fed back at this time, and the resource indication information is not fed back, since the quality indication information is fed back for each configured srs, and at this time, the L srs and the L quality indication information correspond to each other sequentially. Alternatively, when Q is equal to M _ max, M is equal to 0; wherein, M _ max is a base station notification terminal; or, the base station and the terminal agree on the number of the quality indication information fed back by the terminal at most.

In another alternative of this application example, when Q is equal to L, M is equal to 1, that is, the quality of the resource with the best quality among the L measurement reference signal resources is fed back in an absolute value manner, the qualities of the remaining resources are fed back in a relative value manner (that is, differential feedback), at this time, resource indication information of the resource corresponding to the best quality is fed back, that is, one resource indication information is fed back, the quality indication information fed back in a corresponding absolute value manner corresponds, and the quality indication information fed back in a corresponding relative value feedback manner and the remaining L-1 measurement reference signal resources correspond in sequence to each other. Alternatively, when Q is equal to M _ max, M is equal to 1; wherein, M _ max is a base station notification terminal; or, the base station and the terminal agree on the number of the quality indication information fed back by the terminal at most.

Application example 15

In this embodiment, the terminal needs to feed back Q pieces of quality indication information to the base station, and the Q pieces of quality indication information are fed back in a combined manner, that is, Q pieces of indication information are used for the terminalThe number of bits indicates that the number of bits,a value of one bit isIs shown in which

Where Qual _ max is the number of index values included in the mapping table between index values referred to by quality information and quality values (Qual _ max is 97 in the mapping table shown in table 6), and q is_iIs the index value corresponding to the ith quality indication information in the mapping table, optionally, Q quality indication information satisfies the increasing order, that is, Q_i＜q_i+1。

In the embodiment of the present disclosure, the quality indication information may be signal quality indication information, and the quality information may also be channel quality indication information, for example, the quality indication information may be one or more of the following information: RSRP, RSRQ, SINR, BLER, CQI (Channel quality indicator).

In the embodiment of the present disclosure, the resource quality information may be signal quality information, and the quality information may also be channel quality information, for example, the quality information may be one or more of the following information: RSRP, RSRQ, SINR, BLER, CQI.

In the embodiments of the present disclosure, it is preferred,indicates the number of different combinations of B resources when B resources are selected from A resources,indicating rounding up a.

In the embodiment of the present disclosure, the resource indication information represents one or more of the following information: index information (e.g., CRI) of the measurement reference signal resource in a measurement reference signal resource group, and index information (e.g., port index) of the measurement reference signal port in a plurality of ports included in the measurement reference signal resource. Index information in the measurement reference signal setting (i.e. such as including multiple CSI-RS resource sets in the CSI-RS resource setting, the resource indication information may be index information of the CSI-RS resource sets in the CSI-RS resource setting) synchronization signal index (such as an index of SS block, an index of SS burst, etc.) of the measurement reference signal group.

The reference quality when feeding back the quality indication information differentially according to the embodiments of the present disclosure may also be referred to as a reference quality, or other equivalent names, that is, a difference value is current quality-reference quality, or a difference value is reference quality-current quality.

It will be understood by those skilled in the art that all or part of the steps of the above methods may be implemented by a program instructing associated hardware (e.g., a processor) to perform the steps, and the program may be stored in a computer readable storage medium, such as a read only memory, a magnetic or optical disk, and the like. Alternatively, all or part of the steps of the above embodiments may be implemented using one or more integrated circuits. Accordingly, each module/unit in the above embodiments may be implemented in hardware, for example, by an integrated circuit to implement its corresponding function, or in software, for example, by a processor executing a program/instruction stored in a memory to implement its corresponding function. The present disclosure is not limited to any specific form of combination of hardware and software.

Although the embodiments disclosed in the present disclosure are described above, the descriptions are only for the convenience of understanding the present disclosure, and are not intended to limit the present disclosure. It will be understood by those skilled in the art of the present disclosure that various changes in form and details may be made therein without departing from the spirit and scope of the disclosure, and that the scope of the disclosure is to be limited only by the terms of the appended claims.

Claims

1. A method for information feedback, comprising:

feeding back at least one of the following information:

m resource indication information and Q quality indication information;

wherein M, Q is a non-negative integer less than or equal to M _ max;

2. The method of claim 1, wherein:

said M is equal to min (M _ max, M1); wherein, the M1 is the number of resources satisfying the first predetermined characteristic in the predetermined L candidate resources; and/or the presence of a gas in the gas,

said Q is equal to min (M _ max, Q1); wherein, the Q1 is the number of quality indication information satisfying a second predetermined characteristic in the predetermined L quality indication information;

wherein M1 and Q1 are nonnegative integers less than or equal to L.

3. The method of claim 2, wherein:

the resources meeting the first predetermined characteristic include at least one of:

the M1 resources are resources whose quality values are greater than a first predetermined threshold among L qualities corresponding to the L candidate resources;

the M1 resources are resources whose correlation between the L candidate resources and the first predetermined resource is less than a second predetermined threshold;

the M1 resources are resources whose difference value from the first predetermined quality among the L qualities corresponding to the L candidate resources is greater than a third predetermined threshold;

the quality corresponding to the quality indication information meeting the second predetermined characteristic comprises at least one of the following:

the quality corresponding to the Q1 quality indication information is the quality of which the quality value is greater than a fourth predetermined threshold among the L qualities corresponding to the L candidate resources;

the quality corresponding to the Q1 quality indication information is the quality of which the correlation between the quality of the second predetermined resource and the quality of the L quality corresponding to the L candidate resources is less than a fifth predetermined threshold;

4. The method according to claim 1, wherein when feeding back M resource indication information and/or Q quality indication information, the method further comprises: feeding back at least one of the following information:

the value of M;

the Q value;

a first specified value representing an end of the M resource indication information;

a second specified value representing an end of the Q quality indication information.

5. The method of claim 4, further comprising jointly encoding at least two of the following fed back information:

the M value, the M resource indication information, the first specified value, the Q quality indication information, the second specified value.

6. The method of claim 1, further comprising at least one of:

determining the M value according to the Q quality indication information;

determining resources required for feeding back the Q quality indication information according to the Q value;

feeding back index information of M3 resources, of the M resources characterized by the M resource indication information, of which the difference value between the quality value and the quality value of the third predetermined resource is lower than an eighth predetermined threshold; wherein the Q is equal to a difference between the M and the M3.

7. The method of claim 1, wherein the feeding back the M value comprises: and feeding back the M value through the repeated times of the indication information.

8. The method of claim 1, further comprising at least one of:

feeding back index information of Q resource indication information corresponding to Q quality indication information in the M resource indication information; wherein Q is an integer less than or equal to M; (ii) a

9. The method of claim 1, wherein:

when Q is equal to M _ max, M is equal to 0; or,

when Q is equal to M _ max, M is equal to 1.

10. A method for information feedback, comprising:

11. The method of claim 10, wherein the N resources satisfying the predetermined characteristic comprise at least one of:

the quality value of the C resources is higher than N4 resources of an eleventh preset threshold;

12. The method according to claim 10, wherein the C resource indication information satisfies at least one of the following characteristics:

the C resource indication informationA bit representation;

the C resource indication informationRepresents;

13. The method of claim 10, wherein the feeding back the index information of the N resources in the C resources comprises:

when the value C is larger than a first preset value, the index information is fed back; and/or

14. The method according to claim 10, wherein the C resource indication information and the index information of the N resources satisfy at least one of the following characteristics:

the C resource indication information and the index information of the N resources are fed back in one feedback information;

the C resource indication information and the index information of the N resources share a cyclic verification check code;

15. The method of claim 10, the C resource indication information and the index information of the N resources satisfy at least one of the following characteristics:

the C resource indication information and the index information of the N resources are fed back in different feedback information;

16. The method of claim 10, further comprising:

17. A method for information feedback, comprising:

determining first quality information;

feeding back the quantized second quality information;

18. The method of claim 17, wherein the quantization parameter comprises:

quantizing a mapping table referred to by the second quality information;

wherein the mapping table represents:

a mapping between index values and quality values; or,

a mapping relationship between the index value and the difference value;

wherein the quantized second quality information belongs to a set of index values included in the mapping table.

19. The method of claim 17, further comprising at least one of:

determining resources required for feeding back the second quality information according to the first quality information; and/or the presence of a gas in the gas,

20. The method of claim 17, further comprising:

receiving signaling information including the first quality information.

21. A method of information reception, comprising:

receiving the quantized second quality information;

determining first quality information;

22. The method of claim 21, the quantization parameter comprising:

quantizing a mapping table referred to by the second quality information;

wherein the mapping table represents:

a mapping between index values and quality values; or,

a mapping relationship between the index value and the difference value;

23. The method of claim 21, further comprising:

receiving the first quality information; and/or the presence of a gas in the gas,

transmitting signaling information including the first quality information.

24. The method according to claim 21, wherein the second quality information and/or the quantized second quality information satisfies at least one of the following characteristics:

a quantization accuracy of the second quality information is inversely proportional to a first quality value included in the first quality information;

and determining the resource of the quantized second quality information according to the quantization information.

25. An apparatus for information feedback, comprising: a first unit and a second unit; wherein,

the second unit is used for: feeding back at least one of the following information:

m resource indication information and Q quality indication information;

wherein M, Q is a non-negative integer less than or equal to M _ max.

26. The apparatus of claim 25, wherein the second means is further for feeding back one or more of:

the value of M;

the Q value;

27. The apparatus of claim 26, further comprising a third unit configured to: jointly encoding one or more of the following information in the second unit:

28. An apparatus for information feedback, comprising: a fourth unit to:

29. The apparatus of claim 28, wherein the N resources satisfying the predetermined characteristic comprise at least one of:

30. The apparatus according to claim 28, further comprising a fifth unit for:

31. An apparatus for information feedback, comprising: a sixth unit, a seventh unit, an eighth unit, and a ninth unit; wherein,

the sixth unit is configured to: determining first quality information;

32. The apparatus according to claim 31, wherein the apparatus further comprises a tenth unit configured to:

receiving signaling information including the first quality information.

33. An apparatus for receiving information, comprising: a first module, a second module, a third module and a fourth module; wherein,

the first module is to: receiving the quantized second quality information;

the second module is to: determining first quality information;

the fourth module is to: determining second quality information according to the quantization information and the quantized second quality information;

34. The method of claim 33, the quantization parameter comprising:

quantizing a mapping table referred to by the second quality information;

wherein the mapping table represents:

a mapping between index values and quality values; or,

a mapping relationship between the index value and the difference value;

the quantized second quality information belongs to a set of index values included in the mapping table.

35. A computer storage medium having stored thereon computer-executable instructions for performing the method of any one of claims 1-9.

36. A computer storage medium having stored thereon computer-executable instructions for performing the method of any one of claims 10-16.

37. A computer storage medium having stored thereon computer-executable instructions for performing the method of any one of claims 17-20.

38. A computer storage medium having stored thereon computer-executable instructions for performing the method of any one of claims 21-24.

39. A terminal, comprising: a memory and a processor; wherein,

the processor is configured to execute program instructions in the memory;

wherein M, Q is a non-negative integer less than or equal to M _ max;

40. A terminal, comprising: a memory and a processor; wherein,

the processor is configured to execute program instructions in the memory;

41. A terminal, comprising: a memory and a processor; wherein,

the processor is configured to execute program instructions in the memory;

determining first quality information;

feeding back the quantized second quality information;

42. A terminal, comprising: a memory and a processor; wherein,

the processor is configured to execute program instructions in the memory;

receiving the quantized second quality information;

determining first quality information;