CN110034903B

CN110034903B - Resource indication method, resource determination method, device, base station and terminal

Info

Publication number: CN110034903B
Application number: CN201810077873.0A
Authority: CN
Inventors: 缪德山; 艾托尼; 高雪娟; 司倩倩
Original assignee: Telecommunications Science and Technology Research Institute Co Ltd
Current assignee: Datang Mobile Communications Equipment Co Ltd
Priority date: 2018-01-12
Filing date: 2018-01-26
Publication date: 2020-10-13
Anticipated expiration: 2038-01-26
Also published as: CN110034903A

Abstract

The invention provides a resource indication method, a resource determination device, a base station and a terminal, wherein the method comprises the following steps: indicating the resource configuration parameters of the target PUCCH resource set to the terminal through the system information; indicating one PUCCH resource in the target PUCCH resource set to a terminal through a downlink control channel PDCCH; wherein the resource configuration parameters of the target PUCCH resource set comprise: at least two of a format type of the PUCCH, a starting symbol of the PUCCH, a length of the PUCCH, whether a frequency domain of the PUCCH is frequency hopped, a resource offset value of the PUCCH, a minimum interval of cyclic shift, a number of frequency domain resource blocks available for PUCCH transmission, and an index of the frequency domain resource blocks available for PUCCH transmission; the embodiment of the invention can simply and definitely indicate the allocation of the PUCCH resources, improve the flexibility of resource allocation and save the signaling overhead of resource allocation.

Description

Resource indication method, resource determination method, device, base station and terminal

Technical Field

The present invention relates to the field of communications technologies, and in particular, to a resource indication method, a resource determination method, a device, a base station, and a terminal.

Background

In the PUCCH (Physical Uplink Control Channel) resource indication in LTE (long term evolution), an implicit resource indication method is used for a PUCCH (ACK (acknowledgement or response)/NACK (not acknowledgement or not response)), that is, a PDCCH (Physical Downlink Control Channel) scheduling a PDSCH (Physical Downlink Shared Channel) is used, a minimum CCE (Control Channel Element) corresponds to a specific PUCCH resource, the minimum CCE is also referred to as a starting CCE, and when ACK/NACK is fed back, the PUCCH resource is used to transmit an ACK/NACK signal. Therefore, at the time of initial access, the PDCCH scheduling message4 (message 4) is mapped to one PUCCH resource to carry ACK/NACK feedback. As shown in fig. 1, M1-M4 represents 4 steps of initial access, respectively corresponding to 4 messages (message1, message2, message3, and message4), and for message4, ACK/NACK signal is transmitted in the following PUCCH.

In the technical discussion of 5G NR (5G air interface), there are two PUCCH Resource indication methods currently, one is an explicit indication method, that is, a Resource set (Resource set) allocated to a terminal UE is indicated by using an RRC (Radio Resource Control) signaling, and then a specific Resource index (index) is notified to the terminal by using downlink Control information DCI; another method is an implicit resource indication method, that is, an LTE method is used, and an index number of the corresponding minimum CCE of the PDCCH is mapped to a specific PUCCH resource. The two methods have advantages and disadvantages respectively, the dominant method is more flexible, and the recessive method can save signaling overhead.

In the PUCCH resource indication of the initially accessed message4, there are some methods currently, but the basic idea is to use system Information in combination with DCI (Downlink Control Information) indication or in combination with a random access response message RAR to indicate, but there is no clear step of how to use an indication field of the system Information, how to use the indication Information of the corresponding DCI, and how to combine implicit indication, so these methods are not complete. If the RAR indication method is adopted, the channel structure of the RAR needs to be adjusted greatly, and only one group of users can be indicated, so that the method has a great defect.

In summary, the existing resource method for message4 has no signaling framework that is the same as the RRC connected state method, or has an ambiguous indication information about RMSI (Remaining minimum system information), or has a large adjustment to the channel structure of RAR, which causes a significant impact on the standard, and thus these methods are not effective resource indication methods.

Disclosure of Invention

The invention aims to provide a resource indication method, a resource determination device, a base station and a terminal, which aim to solve the problem that the existing resource indication mode of message4 has defects.

In order to achieve the above object, an embodiment of the present invention provides a resource indication method, including:

indicating the resource configuration parameters of a target uplink control channel PUCCH resource set to a terminal through system information; the target PUCCH resource set can be used for transmitting uplink acknowledgement ACK/non-acknowledgement NACK feedback of downlink information in the random access process;

indicating one PUCCH resource in the target PUCCH resource set to a terminal through a downlink control channel PDCCH;

wherein the resource configuration parameters of the target PUCCH resource set comprise: a format type of the PUCCH, a starting symbol of the PUCCH, a length of the PUCCH, whether a frequency domain of the PUCCH is frequency hopped, a resource offset value of the PUCCH, a minimum interval of cyclic shift, a number of frequency domain resource blocks available for PUCCH transmission, and an index of the frequency domain resource blocks available for PUCCH transmission.

The step of indicating the resource configuration parameters of the target uplink control channel PUCCH resource set to the terminal through the system information includes:

sending system information to a terminal, wherein the system information carries resource configuration parameters of the target PUCCH resource set; or,

and sending system information to a terminal, wherein the index of a preset bit field of the system information is used for indicating the resource configuration parameters of the target PUCCH resource set.

When the system information carries resource configuration parameters of the target PUCCH resource set, each parameter in the resource configuration parameters uses different bit field indications respectively.

When an index of a preset bit field of the system information is used for indicating a resource configuration parameter of the target PUCCH resource set, the index of the preset bit field is used for indicating a set of interrelated resource configuration parameters.

The step of indicating one PUCCH resource in the target PUCCH resource set to the terminal through a downlink control channel PDCCH comprises the following steps:

indicating the index of the first PUCCH resource in the target PUCCH resource set to the terminal through the starting index or the minimum index of a Control Channel Element (CCE) of the PDCCH; and a mapping relation exists between the index of the first PUCCH resource and the configuration parameter of the first PUCCH resource.

indicating the index of the first PUCCH resource in the target PUCCH resource set to the terminal through the starting index or the minimum index of a Control Channel Element (CCE) of the PDCCH;

and indicating an offset value to a terminal through a PUCCH resource indication domain carried by the PDCCH, so that the terminal can determine an index of a second PUCCH resource in the target PUCCH resource set according to the index of the first PUCCH resource and the offset value, wherein a mapping relation exists between the index of the second PUCCH resource and a configuration parameter of the second PUCCH resource.

If the network side is configured with the resource offset value of the PUCCH, the mapping relationship between the start index or the minimum index of the CCE and the index of the first PUCCH resource is:

wherein n is_PUCCH1An index of a first PUCCH resource; n is_CCEA starting index or a minimum index for a Control Channel Element (CCE);

a resource offset value of the PUCCH indicated by the system information;

if the network side does not configure the resource offset value of the PUCCH, the mapping relationship between the start index or the minimum index of the CCE and the index of the first PUCCH resource is:

n_PUCCH1＝n_CCE(ii) a Wherein n is_PUCCH1An index of a first PUCCH resource; n is_CCEIs the starting index or the smallest index of the control channel element CCE.

Wherein, the step of indicating one PUCCH resource in the target PUCCH resource set to the terminal through the downlink control channel PDCCH comprises the following steps:

indicating a target subset in the target PUCCH resource set to a terminal through a PUCCH resource indication domain carried by the PDCCH; wherein the target PUCCH resource set is divided into a plurality of subsets;

indicating the index of a third PUCCH resource in the target subset to a terminal through a starting index or a minimum index of a Control Channel Element (CCE) of the PDCCH; and a mapping relation exists between the index of the third PUCCH resource and the configuration parameter of the third PUCCH resource.

Wherein, the mapping relationship between the starting index or the minimum index of the control channel element CCE and the index of the third PUCCH resource is:

n_PUCCH3＝(n_CCE/L) mod N; or, n_PUCCH3＝n_CCEmod N；

Wherein n is_PUCCH3Is an index of the third PUCCH resource; n is_CCEA starting index or a minimum index for a Control Channel Element (CCE); n is the number of PUCCH resources contained in the target subset; l is the aggregation level of the control channel elements CCE.

The embodiment of the invention also provides a resource determination method, which comprises the following steps:

receiving system information, and determining a target uplink control channel (PUCCH) resource set according to a resource configuration parameter of the PUCCH resource set indicated by the system information; the target PUCCH resource set can be used for transmitting uplink Acknowledgement (ACK)/non-acknowledgement (NACK) feedback of downlink information in a random access process;

receiving a Physical Downlink Control Channel (PDCCH), and determining one PUCCH resource in the target PUCCH resource set according to the PDCCH;

Wherein the system information carries resource configuration parameters of the target PUCCH resource set; or,

and the index of the preset bit field of the system information is used for indicating the resource configuration parameter of the target PUCCH resource set.

Wherein the step of determining one PUCCH resource in the target PUCCH resource set according to the PDCCH includes:

determining an index of a first PUCCH resource in the target PUCCH resource set according to a starting index or a minimum index of a Control Channel Element (CCE) of the PDCCH;

mapping the index of the first PUCCH resource to the configuration parameter of the first PUCCH resource.

Wherein the step of determining one PUCCH resource in the target PUCCH resource set according to the PDCCH further includes:

determining an offset value according to a PUCCH resource indication domain carried by the PDCCH, and determining an index of a second PUCCH resource in the target PUCCH resource set according to the index of the first PUCCH resource and the offset value;

mapping the index of the second PUCCH resource to the configuration parameter of the second PUCCH resource.

Wherein, the step of determining the index of the first PUCCH resource in the target PUCCH resource set according to the starting index or the minimum index of the control channel element CCE of the PDCCH includes:

determining an index of a first PUCCH resource according to a mapping relation between a starting index or a minimum index of a Control Channel Element (CCE) and the index of the first PUCCH resource;

a resource offset value of the PUCCH indicated by the system information;

determining a target subset of the target PUCCH resource set according to a PUCCH resource indication domain carried by the PDCCH; wherein the target PUCCH resource set is divided into a plurality of subsets;

determining an index of a third PUCCH resource in the target subset according to a starting index or a minimum index of a Control Channel Element (CCE) of the PDCCH;

mapping an index of the third PUCCH resource to a configuration parameter of the third PUCCH resource.

Wherein the step of determining an index of a third PUCCH resource in the target subset according to a starting index or a minimum index of a control channel element, CCE, of the PDCCH includes:

determining an index of a third PUCCH resource in the target subset according to a mapping relation between a starting index or a minimum index of the Control Channel Element (CCE) and the index of the third PUCCH resource; the mapping relationship between the starting index or the minimum index of the Control Channel Element (CCE) and the index of the third PUCCH resource is as follows:

n_PUCCH3＝(n_CCE/L) mod N; or, n_PUCCH3＝n_CCEmod N；

An embodiment of the present invention further provides a base station, including: a transceiver, a memory, a processor, and a computer program stored on the memory and executable on the processor; the processor is used for reading the program in the memory and executing the following processes:

controlling the transceiver to indicate resource configuration parameters of a target uplink control channel PUCCH resource set to a terminal through system information; the target PUCCH resource set can be used for transmitting uplink acknowledgement ACK/non-acknowledgement NACK feedback of downlink information in the random access process;

controlling the transceiver to indicate one PUCCH resource in the target PUCCH resource set to a terminal through a downlink control channel PDCCH;

Wherein the transceiver is further configured to:

Wherein the processor is further configured to:

controlling the transceiver to indicate an index of a first PUCCH resource in the target PUCCH resource set to a terminal through a starting index or a minimum index of a Control Channel Element (CCE) of a PDCCH; and a mapping relation exists between the index of the first PUCCH resource and the configuration parameter of the first PUCCH resource.

Wherein the processor is further configured to:

controlling the transceiver to indicate an index of a first PUCCH resource in the target PUCCH resource set to a terminal through a starting index or a minimum index of a Control Channel Element (CCE) of a PDCCH;

and controlling the transceiver to indicate an offset value to a terminal through a PUCCH resource indication field carried by the PDCCH, so that the terminal can determine an index of a second PUCCH resource in the target PUCCH resource set according to the index of the first PUCCH resource and the offset value, wherein a mapping relation exists between the index of the second PUCCH resource and a configuration parameter of the second PUCCH resource.

a resource offset value of the PUCCH indicated by the system information;

Wherein the processor is further configured to:

controlling the transceiver to indicate a target subset in the target PUCCH resource set to a terminal through a PUCCH resource indication domain carried by a PDCCH; wherein the target PUCCH resource set is divided into a plurality of subsets;

controlling the transceiver to indicate an index of a third PUCCH resource in the target subset to a terminal through a starting index or a minimum index of a Control Channel Element (CCE) of the PDCCH; and a mapping relation exists between the index of the third PUCCH resource and the configuration parameter of the third PUCCH resource.

n_PUCCH3＝(n_CCE/L) mod N; or, n_PUCCH3＝n_CCEmod N；

An embodiment of the present invention further provides a resource indicating apparatus, including:

the first indication module is used for indicating the resource configuration parameters of the target uplink control channel PUCCH resource set to the terminal through the system information; the target PUCCH resource set can be used for transmitting uplink acknowledgement ACK/non-acknowledgement NACK feedback of downlink information in the random access process;

a second indication module, configured to indicate one PUCCH resource in the target PUCCH resource set to a terminal through a downlink control channel PDCCH;

An embodiment of the present invention further provides a computer-readable storage medium, where a computer program is stored on the computer-readable storage medium, and when the computer program is executed by a processor, the steps of the resource indication method described above are implemented.

An embodiment of the present invention further provides a terminal, including: a transceiver, a memory, a processor, and a computer program stored on the memory and executable on the processor; the processor is used for reading the program in the memory and executing the following processes:

receiving system information through the transceiver, and determining a target uplink control channel (PUCCH) resource set according to a resource configuration parameter of the PUCCH resource set indicated by the system information; the target PUCCH resource set can be used for transmitting uplink Acknowledgement (ACK)/non-acknowledgement (NACK) feedback of downlink information in a random access process;

receiving a Physical Downlink Control Channel (PDCCH) through the transceiver, and determining one PUCCH resource in the target PUCCH resource set according to the PDCCH;

Wherein the processor is further configured to:

a resource offset value of the PUCCH indicated by the system information;

Wherein the processor is further configured to:

n_PUCCH3＝(n_CCE/L) mod N; or, n_PUCCH3＝n_CCEmod N；

An embodiment of the present invention further provides a resource determining apparatus, including:

the first determining module is used for receiving system information and determining a target uplink control channel (PUCCH) resource set according to a resource configuration parameter of the PUCCH resource set indicated by the system information; the target PUCCH resource set can be used for transmitting uplink Acknowledgement (ACK)/non-acknowledgement (NACK) feedback of downlink information in a random access process;

a second determining module, configured to receive a physical downlink control channel PDCCH, and determine one PUCCH resource in the target PUCCH resource set according to the PDCCH;

An embodiment of the present invention further provides a computer-readable storage medium, where a computer program is stored on the computer-readable storage medium, and when the computer program is executed by a processor, the steps of the resource determination method described above are implemented.

The technical scheme of the invention at least has the following beneficial effects:

in the resource indication method, the resource determination device, the base station and the terminal of the embodiment of the invention, firstly, system information is used for indicating the resource configuration parameters of a target PUCCH resource set, and the terminal can determine the target PUCCH resource set according to the resource configuration parameters; then, one PUCCH resource in the target PUCCH resource set is indicated by the PDCCH, and the terminal can transmit uplink acknowledgement ACK/non-acknowledgement NACK feedback of downlink information in the random access process by using the PUCCH resource indicated by the PDCCH; the embodiment of the invention can simply and definitely indicate the allocation of the PUCCH resources, improve the flexibility of resource allocation and save the signaling overhead of resource allocation.

Drawings

Fig. 1 shows a schematic diagram of a random access procedure in the prior art;

FIG. 2 is a flowchart illustrating steps of a resource indication method according to an embodiment of the present invention;

FIG. 3 is a flowchart illustrating steps of a resource determination method according to an embodiment of the present invention;

fig. 4 is a schematic structural diagram of a base station according to an embodiment of the present invention;

fig. 5 is a schematic structural diagram of a resource indicating apparatus according to an embodiment of the present invention;

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

fig. 7 is a schematic structural diagram of a resource determination apparatus according to an embodiment of the present invention.

Detailed Description

In order to make the technical problems, technical solutions and advantages of the present invention more apparent, the following detailed description is given with reference to the accompanying drawings and specific embodiments.

As shown in fig. 2, an embodiment of the present invention provides a resource indication method, including:

step 21, indicating resource configuration parameters of a target uplink control channel PUCCH resource set to a terminal through system information; the target PUCCH resource set can be used for transmitting uplink Acknowledgement (ACK)/non-acknowledgement (NACK) feedback of downlink information in the random access process;

in this step, the resource configuration parameters of the target PUCCH resource set include: a format type of the PUCCH, a starting symbol of the PUCCH, a length of the PUCCH, whether a frequency domain of the PUCCH is frequency hopped, a resource offset value of the PUCCH, a minimum interval of cyclic shift, a number of frequency domain resource blocks available for PUCCH transmission, and at least two of the frequency domain resource blocks available for PUCCH transmission.

It should be noted that the resource configuration parameter needs to be able to determine a unique target PUCCH resource set. The system information may be RMSI (Remaining minimum system information).

And step 22, indicating one PUCCH resource in the target PUCCH resource set to the terminal through a downlink control channel PDCCH.

In the embodiment of the present invention, first, system information is used to indicate a resource configuration parameter of a target PUCCH resource set, and a terminal can determine a target PUCCH resource set according to the resource configuration parameter; and then, one PUCCH resource in the target PUCCH resource set is indicated by the PDCCH, and the terminal can transmit uplink acknowledgement ACK/non-acknowledgement NACK feedback of downlink information in the random access process by using the PUCCH resource indicated by the PDCCH.

Preferably, step 21 includes:

step 211, sending system information to a terminal, where the system information carries resource configuration parameters of the target PUCCH resource set; or,

step 212, sending system information to a terminal, where an index of a preset bit field of the system information is used to indicate a resource configuration parameter of the target PUCCH resource set.

Preferably, in the above embodiments of the present invention, the N bit information field of the system information RMSI is used to indicate the resource configuration parameter of the target PUCCH resource set. N is an integer greater than or equal to 4, preferably N is equal to 4.

The format type (namely, format type) of the PUCCH occupies a 1-bit information domain, and the number of information bits of ACK/NACK is at most 1bit in the initial access stage, so that the format type of the PUCCH has two options; for example, "0" represents format 0; "1" means format 1.

In order to limit the number of bits, in the embodiment of the present invention, the starting symbol of the PUCCH and the length of the PUCCH are indicated together, that is, the starting symbol of the PUCCH and the length of the PUCCH occupy a 1-bit information field. For example, for format 0, since the total subframe length is 14 symbols, 13/1 and 12/2 may be used, where 13/1 denotes that the starting symbol is 13, the PUCCH length is 1 symbol; 12/2 denotes a starting symbol of 12, and a PUCCH length of 2 symbols. For format1, two options are considered, 14/0 and 10/4, which have the same meaning as in format 0.

The indication of whether the frequency domain of the PUCCH is frequency hopping occupies a 1bit information domain, and if the frequency domain is frequency hopping, the PUCCH is generally divided into two parts on the time domain and transmitted on different frequency bands. For example, "0" indicates no frequency hopping and "1" indicates frequency hopping.

The resource deviant of PUCCH occupies 1bit information domain, the information is used for indicating the starting deviant of PUCCH resource; since the PUCCH resource of the initially accessed user may share resources with other accessed users, in order to reserve PUCCH resources of other users, an offset value of the PUCCH resource needs to be set; such as semi-persistently scheduled SPS users.

The minimum interval of the cyclic shift CS occupies a 1bit information domain or a 2bit information domain, and the information is used for indicating the interval of the cyclic shift CS of different users. For a sequence, the maximum number of available CSs is 12, and the interval size determines the number of users supported.

The number of frequency domain resource blocks available for PUCCH transmission or the frequency domain resource blocks available for PUCCH transmission may occupy 1bit information domain, respectively.

It should be noted that, when the system information has a 4-bit information field to indicate the resource configuration parameter, the information included in the resource configuration parameter does not need to be indicated at the same time, so as to ensure that the total length of the information bit field occupied by the resource configuration parameter does not exceed 4.

Further, in the foregoing embodiment of the present invention, when the system information carries the resource configuration parameters of the target PUCCH resource set, each of the resource configuration parameters uses a different bit field indication. I.e. different bit fields (also called information fields) are used to indicate different parameters. When the system information carries the resource configuration parameters of the target PUCCH resource set, the use of the 4-bit information field of the system information is shown in table 1:

TABLE 1

As shown in table 1, the 4-bit information field of the system information is used for carrying resource configuration parameters; the resource configuration parameters carried by the system information 1 include: 1bit indicates the format type of the PUCCH, 1bit indicates the starting symbol and the length of the PUCCH, and 2bit indicates the minimum interval of cyclic shift; the resource configuration parameters carried by the system information 2 include: 1bit indicates the PUCCH format type, 1bit indicates the PUCCH resource deviation value, and 2bit indicates the minimum interval of cyclic shift; the resource configuration parameters carried by the system information 3 include: 1bit indicates the PUCCH format type, 1bit indicates the PUCCH starting symbol and the PUCCH length, 1bit indicates whether frequency hopping is carried out, and 1bit indicates the minimum interval of cyclic shift.

Further, in the foregoing embodiment of the present invention, when an index of a preset bit field of the system information is used to indicate a resource configuration parameter of the target PUCCH resource set, the index of the preset bit field is used to indicate a set of resource configuration parameters associated with each other; it may also be referred to as jointly encoding at least two parameters included in the resource configuration parameters.

When the index of the preset bit field of the system information is used for indicating the resource configuration parameters of the target PUCCH resource set, the preset bit field of the system information has 16 different indexes at most because the preset bit field is 4 bits, and when the PUCCH length is set to be 2 characters, the frequency hopping is always started; alternatively, if a switch supporting frequency hopping is required, this can be achieved by reducing the number of minimum intervals of cyclic shift, for example, setting the minimum interval of cyclic shift to 2 or 3. Preferably, the mapping relationship between the index of the predetermined bit field (i.e. 4-bit information field) of the system information and the resource allocation parameter is shown in table 2:

TABLE 2

As shown in table 2, when the index of the preset bit field of the system information is "0", the resource configuration parameters included in the system information are: PUCCH format is 0, starting symbol is 12, PUCCH length is 2, there is frequency hopping, and the minimum interval of cyclic shift is 1. The other indexes do not correspond to parameters that are enumerated.

Alternatively, the mapping relationship between the index of the preset bit field (i.e. 4-bit information field) of the system information and the resource configuration parameter is shown in table 3 (the minimum interval for setting the cyclic shift is 2 or 3):

TABLE 3

As shown in table 3, when the index of the preset bit field of the system information is "0", the resource configuration parameters included in the system information are: the PUCCH format is 0, the starting symbol is 12, the PUCCH length is 2, the number of configured frequency domain resource blocks is 2 PRBs, and the minimum interval of cyclic shift is 2. The other indexes do not correspond to parameters that are enumerated.

Further, in the above embodiment of the present invention, step 22 includes:

When a specific PUCCH (i.e. a first PUCCH resource) is demapped according to the starting index or the minimum index of the CCE, if the first PUCCH resource conflicts with other users (e.g. is occupied by other users), it is possible to demap another resource through a PUCCH resource indication field carried by the PDCCH; or, the same PUCCH resource cannot be used between users of different beam beams, and at this time, another resource needs to be mapped through a PUCCH resource indication field carried by the PDCCH; namely, step 22 includes:

and indicating an offset value to a terminal through a PUCCH resource indication field (the PUCCH resource indication field is a certain information field of downlink control information DCI) carried by the PDCCH, so that the terminal can determine an index of a second PUCCH resource in the target PUCCH resource set according to the index of the first PUCCH resource and the offset value, wherein a mapping relation exists between the index of the second PUCCH resource and a configuration parameter of the second PUCCH resource. Preferably, the index of the second PUCCH resource is equal to the index of the first PUCCH resource ± offset value.

Preferably, if the network side is configured with the resource offset value of the PUCCH, the mapping relationship between the start index or the minimum index of the CCE and the index of the first PUCCH resource is:

a resource offset value of the PUCCH indicated by the system information;

Note that the PUCCH resource indication field may be indicated by 2 bits, and a specific offset value may be any one of { -1,0,1,2} and {8, 4, 2, 0 }.

It should be further noted that the index of the first PUCCH resource or the index of the second PUCCH resource corresponds to at least the following parameters: the index of the physical resource block PRB contained in the PUCCH, the index of the time domain orthogonal mask OCC (applicable to format1), the initial cyclic shift CS value, and equivalently, the index of the first PUCCH resource or the index of the second PUCCH resource point to a set of above parameter configuration values, which can determine the specific format and physical resource configuration of the PUCCH resource. Further, the index of the first PUCCH resource or the index of the second PUCCH resource may indicate a specific uplink control channel physical resource.

Alternatively, in the above embodiment of the present invention, step 22 includes:

indicating a target subset in the target PUCCH resource set to a terminal through a PUCCH resource indication domain carried by a PDCCH (the PUCCH resource indication domain is a certain information domain of downlink control information DCI); wherein the target PUCCH resource set is divided into a plurality of subsets; if the PUCCH resource indication field is 2 bits, the target PUCCH resource set is divided into 4 subsets, and the PUCCH resource indication field is used to indicate a specific subset (namely the target subset).

Specifically, the mapping relationship between the starting index or the minimum index of the control channel element CCE and the index of the third PUCCH resource is:

n_PUCCH3＝(n_CCE/L) mod N; or, n_PUCCH3＝n_CCEmod N；

Specifically, when the number of PUCCH resources in one target subset is small, the following formula may be used:

n_PUCCH3＝(n_CCE/L) mod N; the mapping is performed, and the main purpose is to improve the resource utilization rate and prevent resource conflict.

Otherwise, when the number of PUCCH resources in one target subset is large or the CCE aggregation level of a user varies greatly, the following formula may be used:

n_PUCCH3＝n_CCEmod N。

for example, when the polymerization level L-2 and N-2, if the formula is used: n is_PUCCH3＝n_CCEmod N, then CCE index 0 and CCE index 2 map to the same PUCCH resource, causing resource collision.

In summary, in the embodiments of the present invention, first, system information is used to indicate a resource configuration parameter of a target PUCCH resource set, and a terminal can determine a target PUCCH resource set according to the resource configuration parameter; then, one PUCCH resource in the target PUCCH resource set is indicated by the PDCCH, and the terminal can transmit uplink acknowledgement ACK/non-acknowledgement NACK feedback of downlink information in the random access process by using the PUCCH resource indicated by the PDCCH; the embodiment of the invention can simply and definitely indicate the allocation of the PUCCH resources, improve the flexibility of resource allocation and save the signaling overhead of resource allocation.

As shown in fig. 3, an embodiment of the present invention further provides a resource determining method, including:

step 31, receiving system information, and determining a target uplink control channel (PUCCH) resource set according to a resource configuration parameter of the target PUCCH resource set indicated by the system information; the target PUCCH resource set can be used for transmitting uplink Acknowledgement (ACK)/non-acknowledgement (NACK) feedback of downlink information in the random access process.

In this step, the resource configuration parameters of the target PUCCH resource set include: a format type of the PUCCH, a starting symbol of the PUCCH, a length of the PUCCH, whether a frequency domain of the PUCCH is frequency hopped, a resource offset value of the PUCCH, a minimum interval of cyclic shift, a number of frequency domain resource blocks available for PUCCH transmission, and an index of the frequency domain resource blocks available for PUCCH transmission.

And step 32, receiving a Physical Downlink Control Channel (PDCCH), and determining one PUCCH resource in the target PUCCH resource set according to the PDCCH.

The embodiment of the invention firstly determines a target PUCCH resource set according to the resource configuration parameters of the target PUCCH resource set indicated by the system information; and then, one PUCCH resource in the target PUCCH resource set is determined according to the indication of the PDCCH, and the terminal can use the PUCCH resource indicated by the PDCCH to transmit uplink acknowledgement ACK/non-acknowledgement NACK feedback of downlink information in the random access process.

Preferably, in the above embodiment of the present invention, the system information carries a resource configuration parameter of the target PUCCH resource set; or,

Further, in the foregoing embodiment of the present invention, when the system information carries the resource configuration parameters of the target PUCCH resource set, each of the resource configuration parameters uses a different bit field indication. I.e. different bit fields (also called information fields) are used to indicate different parameters. When the system information carries the resource configuration parameters of the target PUCCH resource set, the use of the 4-bit information field of the system information is shown in table 1.

When the index of the preset bit field of the system information is used for indicating the resource configuration parameters of the target PUCCH resource set, the preset bit field of the system information has 16 different indexes at most because the preset bit field is 4 bits, and when the PUCCH length is set to be 2 characters, the frequency hopping is always started; alternatively, if a switch supporting frequency hopping is required, this can be achieved by reducing the number of minimum intervals of cyclic shift, for example, setting the minimum interval of cyclic shift to 2 or 3. Preferably, the mapping relationship between the index of the predetermined bit field (i.e. 4-bit information field) of the system information and the resource allocation parameter is shown in table 2. For example, as shown in table 2, when the index of the preset bit field of the system information is "0", the resource configuration parameters included in the system information are: PUCCH format is 0, starting symbol is 12, PUCCH length is 2, there is frequency hopping, and the minimum interval of cyclic shift is 1. The other indexes do not correspond to parameters that are enumerated.

Alternatively, the mapping relationship between the index of the preset bit field (i.e. 4-bit information field) of the system information and the resource configuration parameter is shown in table 3 (the minimum interval for setting the cyclic shift is 2 or 3). For example, as shown in table 3, when the index of the preset bit field of the system information is "0", the resource configuration parameters included in the system information are: the PUCCH format is 0, the starting symbol is 12, the PUCCH length is 2, the number of configured frequency domain resource blocks is 2 PRBs, and the minimum interval of cyclic shift is 2. The other indexes do not correspond to parameters that are enumerated.

Further, step 32 in the above embodiment of the present invention includes:

When a specific PUCCH (i.e. a first PUCCH resource) is demapped according to the starting index or the minimum index of the CCE, if the first PUCCH resource conflicts with other users (e.g. is occupied by other users), it is possible to demap another resource through a PUCCH resource indication field carried by the PDCCH; or, the same PUCCH resource cannot be used between users of different beam beams, and at this time, another resource needs to be mapped through a PUCCH resource indication field carried by the PDCCH; namely, step 32 includes:

and determining an offset value according to a PUCCH resource indication field (the PUCCH resource indication field is a certain information field of downlink control information DCI) carried by the PDCCH, and determining an index of a second PUCCH resource in the target PUCCH resource set according to the index of the first PUCCH resource and the offset value. Preferably, the index of the second PUCCH resource is equal to the index of the first PUCCH resource ± offset value.

Preferably, the step of determining the index of the first PUCCH resource in the target PUCCH resource set according to the starting index or the minimum index of the control channel element CCE of the PDCCH includes:

a resource offset value of the PUCCH indicated by the system information;

Alternatively, in the above embodiment of the present invention, step 32 includes:

determining a target subset of the target PUCCH resource set according to a PUCCH resource indication domain carried by the PDCCH (the PUCCH resource indication domain is a certain information domain of downlink control information DCI); wherein the target PUCCH resource set is divided into a plurality of subsets; if the PUCCH resource indication field is 2 bits, the target PUCCH resource set is divided into 4 subsets, and the PUCCH resource indication field is used to indicate a specific subset (namely the target subset).

Specifically, the step of determining an index of a third PUCCH resource in the target subset according to a starting index or a minimum index of a control channel element CCE of the PDCCH includes:

n_PUCCH3＝(n_CCE/L) mod N; or, n_PUCCH3＝n_CCEmod N；

In summary, in the embodiments of the present invention, the terminal first determines a target PUCCH resource set according to the resource configuration parameter of the target PUCCH resource set indicated by the system information; and then, one PUCCH resource in the target PUCCH resource set is determined according to the indication of the PDCCH, and the terminal can use the PUCCH resource indicated by the PDCCH to transmit uplink acknowledgement ACK/non-acknowledgement NACK feedback of downlink information in the random access process. The embodiment of the invention can simply and definitely indicate the allocation of the PUCCH resources, improve the flexibility of resource allocation and save the signaling overhead of resource allocation.

As shown in fig. 4, an embodiment of the present invention further provides a base station, including: a transceiver 420, a memory 410, a processor 400 and a computer program stored on the memory 410 and executable on the processor 400, the processor 400 being configured to read the program in the memory 410 and execute the following processes:

controlling the transceiver 420 to indicate the resource configuration parameters of the target uplink control channel PUCCH resource set to the terminal through system information; the target PUCCH resource set can be used for transmitting uplink acknowledgement ACK/non-acknowledgement NACK feedback of downlink information in the random access process;

controlling the transceiver 420 to indicate one PUCCH resource in the target PUCCH resource set to a terminal through a downlink control channel PDCCH;

Preferably, in the above embodiments of the present invention, the transceiver 420 is further configured to:

Preferably, in the above embodiment of the present invention, when the system information carries the resource configuration parameters of the target PUCCH resource set, each of the resource configuration parameters uses a different bit field indication.

Preferably, in the above embodiment of the present invention, when an index of a predetermined bit field of the system information is used to indicate a resource configuration parameter of the target PUCCH resource set, the index of the predetermined bit field is used to indicate a set of resource configuration parameters associated with each other.

Preferably, in the above embodiments of the present invention, the processor 400 is further configured to:

controlling the transceiver 420 to indicate an index of a first PUCCH resource in the target PUCCH resource set to a terminal through a starting index or a minimum index of a Control Channel Element (CCE) of a PDCCH; and a mapping relation exists between the index of the first PUCCH resource and the configuration parameter of the first PUCCH resource.

controlling the transceiver 420 to indicate an index of a first PUCCH resource in the target PUCCH resource set to a terminal through a starting index or a minimum index of a Control Channel Element (CCE) of a PDCCH;

and controlling the transceiver 420 to indicate an offset value to a terminal through a PUCCH resource indication field carried by the PDCCH, so that the terminal can determine an index of a second PUCCH resource in the target PUCCH resource set according to the index of the first PUCCH resource and the offset value, wherein a mapping relation exists between the index of the second PUCCH resource and a configuration parameter of the second PUCCH resource.

Preferably, in the above embodiment of the present invention, if the network side is configured with the resource offset value of the PUCCH, the mapping relationship between the start index or the minimum index of the control channel element CCE and the index of the first PUCCH resource is as follows:

wherein,n_PUCCH1an index of a first PUCCH resource; n is_CCEA starting index or a minimum index for a Control Channel Element (CCE);

a resource offset value of the PUCCH indicated by the system information;

controlling the transceiver 420 to indicate a target subset of the target PUCCH resource sets to a terminal through a PUCCH resource indication field carried by a PDCCH; wherein the target PUCCH resource set is divided into a plurality of subsets;

controlling the transceiver 420 to indicate an index of a third PUCCH resource in the target subset to a terminal through a starting index or a minimum index of a Control Channel Element (CCE) of the PDCCH; and a mapping relation exists between the index of the third PUCCH resource and the configuration parameter of the third PUCCH resource.

Preferably, in the above embodiment of the present invention, the mapping relationship between the start index or the minimum index of the control channel element CCE and the index of the third PUCCH resource is:

n_PUCCH3＝(n_CCE/L) mod N; or, n_PUCCH3＝n_CCEmod N；

It should be noted that, the base station provided in the embodiments of the present invention is a base station capable of executing the resource indication method, and all embodiments of the resource indication method are applicable to the base station and can achieve the same or similar beneficial effects.

As shown in fig. 5, an embodiment of the present invention further provides a resource indicating apparatus, including:

a first indication module 51, configured to indicate a resource configuration parameter of a target uplink control channel PUCCH resource set to a terminal through system information; the target PUCCH resource set can be used for transmitting uplink acknowledgement ACK/non-acknowledgement NACK feedback of downlink information in the random access process;

a second indicating module 52, configured to indicate one PUCCH resource in the target PUCCH resource set to the terminal through a downlink control channel PDCCH;

Preferably, in the above embodiment of the present invention, the first indicating module includes:

the first indication submodule is used for sending system information to a terminal, and the system information carries resource configuration parameters of the target PUCCH resource set; and/or the presence of a gas in the gas,

and the second indicating submodule is used for sending system information to a terminal, and the index of a preset bit field of the system information is used for indicating the resource configuration parameters of the target PUCCH resource set.

Preferably, in the above embodiment of the present invention, the second indicating module includes:

a third indication submodule, configured to indicate, to the terminal, an index of a first PUCCH resource in the target PUCCH resource set through a starting index or a minimum index of a control channel element CCE of the PDCCH; and a mapping relation exists between the index of the first PUCCH resource and the configuration parameter of the first PUCCH resource.

a fourth indication submodule, configured to indicate, to the terminal, an index of a first PUCCH resource in the target PUCCH resource set through a starting index or a minimum index of a control channel element CCE of the PDCCH;

a fifth indication submodule, configured to indicate an offset value to a terminal through a PUCCH resource indication field carried by the PDCCH, so that the terminal can determine an index of a second PUCCH resource in the target PUCCH resource set according to the index of the first PUCCH resource and the offset value, where a mapping relationship exists between the index of the second PUCCH resource and a configuration parameter of the second PUCCH resource.

a resource offset value of the PUCCH indicated by the system information;

a sixth indication submodule, configured to indicate a target subset in the target PUCCH resource set to the terminal through a PUCCH resource indication field carried by the PDCCH; wherein the target PUCCH resource set is divided into a plurality of subsets;

a seventh indication submodule, configured to indicate, to a terminal, an index of a third PUCCH resource in the target subset through a starting index or a minimum index of a Control Channel Element (CCE) of the PDCCH; and a mapping relation exists between the index of the third PUCCH resource and the configuration parameter of the third PUCCH resource.

n_PUCCH3＝(n_CCE/L) mod N; or, n_PUCCH3＝n_CCEmod N；

Wherein n is_PUCCH3Is an index of the third PUCCH resource; n is_CCEFor control of the start of the channel element CCEA start index or a minimum index; n is the number of PUCCH resources contained in the target subset; l is the aggregation level of the control channel elements CCE.

It should be noted that, the resource indication apparatus provided in the embodiments of the present invention is a resource indication apparatus capable of executing the resource indication method, and all embodiments of the resource indication method are applicable to the resource indication apparatus and can achieve the same or similar beneficial effects.

An embodiment of the present invention further provides a computer-readable storage medium, where a computer program is stored on the computer-readable storage medium, and when executed by a processor, the computer program implements each process of the resource indication method embodiment described above, and can achieve the same technical effect, and in order to avoid repetition, details are not repeated here. The computer-readable storage medium may be a Read-Only Memory (ROM), a Random Access Memory (RAM), a magnetic disk or an optical disk.

As shown in fig. 6, an embodiment of the present invention further provides a terminal, including: a transceiver 620, a user interface 630, a memory 610, a processor 600 and a computer program stored on the memory 610 and executable on the processor 600; the processor 600 is used for reading the program in the memory and executing the following processes:

receiving system information through the transceiver 620, and determining a target uplink control channel (PUCCH) resource set according to a resource configuration parameter of the PUCCH resource set indicated by the system information; the target PUCCH resource set can be used for transmitting uplink Acknowledgement (ACK)/non-acknowledgement (NACK) feedback of downlink information in a random access process;

receiving a Physical Downlink Control Channel (PDCCH) through the transceiver 620, and determining one PUCCH resource in the target PUCCH resource set according to the PDCCH;

Preferably, in the above embodiment of the present invention, the processor 600 is further configured to:

a resource offset value of the PUCCH indicated by the system information;

n_PUCCH3＝(n_CCE/L) mod N; or, n_PUCCH3＝n_CCEmod N；

It should be noted that, the terminal provided in the above embodiments of the present invention is a terminal capable of executing the above resource determining method, and all embodiments of the resource determining method are applicable to the terminal, and can achieve the same or similar beneficial effects.

As shown in fig. 7, an embodiment of the present invention further provides a resource determining apparatus, including:

a first determining module 71, configured to receive system information, and determine a target uplink control channel PUCCH resource set according to a resource configuration parameter of the target PUCCH resource set indicated by the system information; the target PUCCH resource set can be used for transmitting uplink Acknowledgement (ACK)/non-acknowledgement (NACK) feedback of downlink information in a random access process;

a second determining module 72, configured to receive a physical downlink control channel PDCCH, and determine one PUCCH resource in the target PUCCH resource set according to the PDCCH;

Preferably, in the above embodiment of the present invention, the second determining module includes:

a first determining submodule, configured to determine an index of a first PUCCH resource in the target PUCCH resource set according to a starting index or a minimum index of a control channel element CCE of the PDCCH;

a second determining submodule, configured to map the index of the first PUCCH resource to a configuration parameter of the first PUCCH resource.

a third determining submodule, configured to determine an index of a first PUCCH resource in the target PUCCH resource set according to a starting index or a minimum index of a control channel element CCE of the PDCCH;

a fourth determining submodule, configured to determine an offset value according to the PUCCH resource indication field carried by the PDCCH, and determine an index of a second PUCCH resource in the target PUCCH resource set according to the index of the first PUCCH resource and the offset value;

a fifth determining submodule, configured to map the index of the second PUCCH resource to the configuration parameter of the second PUCCH resource.

Preferably, in the above embodiment of the present invention, the first determining sub-module or the second determining sub-module is further configured to:

a resource offset value of the PUCCH indicated by the system information;

a sixth determining submodule, configured to determine a target subset of the target PUCCH resource set according to the PUCCH resource indication field carried by the PDCCH; wherein the target PUCCH resource set is divided into a plurality of subsets;

a seventh determining submodule, configured to determine an index of a third PUCCH resource in the target subset according to a starting index or a minimum index of a Control Channel Element (CCE) of the PDCCH;

an eighth determining submodule, configured to map an index of the third PUCCH resource to a configuration parameter of the third PUCCH resource.

Preferably, in the above embodiment of the present invention, the fifth determining sub-module is further configured to:

n_PUCCH3＝(n_CCE/L) mod N; or, n_PUCCH3＝n_CCEmod N；

An embodiment of the present invention further provides a computer-readable storage medium, where a computer program is stored on the computer-readable storage medium, and when executed by a processor, the computer program implements each process of the embodiment of the resource determination method described above, and can achieve the same technical effect, and in order to avoid repetition, details are not repeated here. The computer-readable storage medium may be a Read-Only Memory (ROM), a Random Access Memory (RAM), a magnetic disk or an optical disk.

It should be noted that, in this document, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other like elements in a process, method, article, or apparatus that comprises the element.

Through the above description of the embodiments, those skilled in the art will clearly understand that the method of the above embodiments can be implemented by software plus a necessary general hardware platform, and certainly can also be implemented by hardware, but in many cases, the former is a better implementation manner. Based on such understanding, the technical solutions of the present invention may be embodied in the form of a software product, which is stored in a storage medium (such as ROM/RAM, magnetic disk, optical disk) and includes instructions for enabling a terminal (such as a mobile phone, a computer, a server, an air conditioner, or a network device) to execute the method according to the embodiments of the present invention.

While the present invention has been described with reference to the embodiments shown in the drawings, the present invention is not limited to the embodiments, which are illustrative and not restrictive, and it will be apparent to those skilled in the art that various changes and modifications can be made therein without departing from the spirit and scope of the invention as defined in the appended claims.

While the foregoing is directed to the preferred embodiment of the present invention, it will be understood by those skilled in the art that various changes and modifications may be made without departing from the spirit and scope of the invention as defined in the appended claims.

Claims

1. A method for resource indication, comprising:

wherein the resource configuration parameters of the target PUCCH resource set comprise: at least two of a format type of the PUCCH, a starting symbol of the PUCCH, a length of the PUCCH, whether a frequency domain of the PUCCH is frequency hopped, a resource offset value of the PUCCH, a minimum interval of cyclic shift, a number of frequency domain resource blocks available for PUCCH transmission, and an index of the frequency domain resource blocks available for PUCCH transmission;

sending system information to a terminal, wherein an index of a preset bit field of the system information is used for indicating a resource configuration parameter of the target PUCCH resource set;

when the system information carries resource configuration parameters of the target PUCCH resource set, each parameter in the resource configuration parameters uses different bit field indications respectively; or, when an index of a preset bit field of the system information is used to indicate a resource configuration parameter of the target PUCCH resource set, the index of the preset bit field is used to indicate a set of resource configuration parameters associated with each other.

2. The method according to claim 1, wherein the step of indicating one PUCCH resource in the target PUCCH resource set to the terminal through a downlink control channel PDCCH comprises:

3. The method according to claim 1, wherein the step of indicating one PUCCH resource in the target PUCCH resource set to the terminal through a downlink control channel PDCCH comprises:

4. The method according to claim 2 or 3, wherein if the network side is configured with a resource offset value of PUCCH, the mapping relationship between the starting index or the minimum index of the Control Channel Element (CCE) and the index of the first PUCCH resource is as follows:

a resource offset value of the PUCCH indicated by the system information;

5. The method according to claim 1, wherein the step of indicating one PUCCH resource in the target PUCCH resource set to the terminal through a downlink control channel PDCCH comprises:

6. The method according to claim 5, wherein the mapping relationship between the starting index or the minimum index of the Control Channel Element (CCE) and the index of the third PUCCH resource is as follows:

n_PUCCH3＝(n_CCE/L) mod N; or, n_PUCCH3＝n_CCEmod N；

7. A method for resource determination, comprising:

the index of a preset bit field of the system information is used for indicating the resource configuration parameter of the target PUCCH resource set;

8. The method according to claim 7, wherein the step of determining one PUCCH resource in the target PUCCH resource set according to the PDCCH comprises:

9. The method according to claim 7, wherein the step of determining one PUCCH resource in the target PUCCH resource set according to the PDCCH further comprises:

10. The method according to claim 8 or 9, wherein the step of determining the index of the first PUCCH resource in the target PUCCH resource set according to the starting index or the minimum index of the control channel element CCE of the PDCCH comprises:

a resource offset value of the PUCCH indicated by the system information;

11. The method according to claim 7, wherein the step of determining one PUCCH resource in the target PUCCH resource set according to the PDCCH comprises:

12. The method according to claim 11, wherein the step of determining the index of the third PUCCH resource in the target subset according to the starting index or the minimum index of the control channel element, CCE, of the PDCCH comprises:

n_PUCCH3＝(n_CCE/L) mod N; or, n_PUCCH3＝n_CCEmod N；

13. A base station, comprising: a transceiver, a memory, a processor, and a computer program stored on the memory and executable on the processor; it is characterized in that the preparation method is characterized in that,

the processor is used for reading the program in the memory and executing the following processes:

wherein the transceiver is further configured to:

14. The base station of claim 13, wherein the processor is further configured to:

15. The base station of claim 13, wherein the processor is further configured to:

16. The base station according to claim 14 or 15, wherein if the network side is configured with a resource offset value of PUCCH, the mapping relationship between the starting index or the minimum index of the control channel element CCE and the index of the first PUCCH resource is:

a resource offset value of the PUCCH indicated by the system information;

17. The base station of claim 13, wherein the processor is further configured to:

18. The base station according to claim 17, wherein the mapping relationship between the starting index or the minimum index of the Control Channel Element (CCE) and the index of the third PUCCH resource is:

n_PUCCH3＝(n_CCE/L) mod N; or, n_PUCCH3＝n_CCEmod N；

19. A resource indication apparatus, comprising:

wherein the first indication module comprises:

a second indication submodule, configured to send system information to a terminal, where an index of a preset bit field of the system information is used to indicate a resource configuration parameter of the target PUCCH resource set;

20. A computer-readable storage medium, on which a computer program is stored which, when being executed by a processor, carries out the steps of the resource indication method according to any one of claims 1 to 6.

21. A terminal, comprising: a transceiver, a memory, a processor, and a computer program stored on the memory and executable on the processor; it is characterized in that the preparation method is characterized in that,

22. The terminal of claim 21, wherein the processor is further configured to:

23. The terminal of claim 21, wherein the processor is further configured to:

24. The terminal of claim 22 or 23, wherein the processor is further configured to:

a resource offset value of the PUCCH indicated by the system information;

25. The terminal of claim 21, wherein the processor is further configured to:

26. The terminal of claim 25, wherein the processor is further configured to:

n_PUCCH3＝(n_CCE/L) mod N; or, n_PUCCH3＝n_CCEmod N；

27. A resource determination apparatus, comprising:

28. A computer-readable storage medium, on which a computer program is stored which, when being executed by a processor, carries out the steps of the resource determination method according to any one of claims 7 to 12.