CN111314039A

CN111314039A - Bandwidth indication method, system, device and medium in partial bandwidth detection

Info

Publication number: CN111314039A
Application number: CN202010093377.1A
Authority: CN
Inventors: 张萌
Original assignee: Spreadtrum Communications Shanghai Co Ltd
Current assignee: Spreadtrum Communications Shanghai Co Ltd
Priority date: 2020-02-14
Filing date: 2020-02-14
Publication date: 2020-06-19
Anticipated expiration: 2040-02-14
Also published as: CN111314039B

Abstract

The invention discloses a bandwidth indicating method, a system, equipment and a medium during partial bandwidth detection. When the bandwidth indication method is applied to the user equipment, the method comprises the following steps: detecting whether an indication domain corresponding to a sub-band for transmitting the SRS is received; if so, acquiring a sub-band bandwidth of a sub-band for sending the SRS, searching a plurality of pieces of SRS bandwidth configuration information matched with the sub-band bandwidth in an SRS bandwidth configuration table, and determining one of the plurality of pieces of SRS bandwidth configuration information as target SRS bandwidth configuration information according to the indication domain; and configuring the SRS according to the target SRS bandwidth configuration information. In the present invention, compared with the use of C_SRSThe SRS bandwidth configuration information is indicated, and the number of bits required by the method of indicating the SRS bandwidth configuration information by combining the indication field on the basis of the known subband bandwidth is small, that is, the base station and the user equipment can determine the SRS bandwidth configuration information based on the small number of bits.

Description

Bandwidth indication method, system, device and medium in partial bandwidth detection

Technical Field

The present invention relates to the field of communications technologies, and in particular, to a method, a system, a device, and a medium for bandwidth indication during partial bandwidth detection.

Background

When performing partial bandwidth detection, the base station may designate the ue to send SRS (sounding reference Signal) on different subbands, where for SRS configuration, according to Release 15/16(5G air interface standard),can be based on C_SRS(one parameter of higher layer signaling configuration) looking up in SRS bandwidth configuration table to determine bandwidth configuration information for SRS on a particular subband, which in turn may be based on B_SRS(a parameter for higher layer signaling configuration) and n_RRC(one parameter of the higher layer signaling configuration) to assist in determining the starting frequency-domain location of the SRS and the number of PRBs (physical resource blocks) on that particular subband. Since in the SRS bandwidth configuration table, C_SRSIs in the value range of [0,63 ]]At least 6 bits are required for representation, so that no matter the base station transmits C for indicating SRS bandwidth configuration to the user equipment_SRSOr the user equipment receives C for indicating SRS bandwidth configuration_SRSMore bits are required. The SRS bandwidth configuration table is as follows:

disclosure of Invention

The technical problem to be solved by the present invention is to overcome the C used for indicating the SRS bandwidth configuration and sent by the base station to the user equipment in the prior art_SRSThe defect of more required bit numbers provides a bandwidth indicating method, a system, equipment and a medium in partial bandwidth detection.

The invention solves the technical problems through the following technical scheme:

a bandwidth indication method in partial bandwidth detection is applied to user equipment, and comprises the following steps:

detecting whether an indication domain corresponding to a sub-band for transmitting an SRS is received, wherein the indication domain is used for indicating one of a plurality of pieces of SRS bandwidth configuration information;

if yes, acquiring a sub-band bandwidth of a sub-band for sending the SRS, searching a plurality of pieces of SRS bandwidth configuration information matched with the sub-band bandwidth in an SRS bandwidth configuration table, and determining one of the plurality of pieces of SRS bandwidth configuration information as target SRS bandwidth configuration information according to the indication domain;

and configuring the SRS according to the target SRS bandwidth configuration information.

Preferably, before the step of determining one of the plurality of SRS bandwidth configuration information as the target SRS bandwidth configuration information according to the indication field, the method further includes:

acquiring a corresponding relation between the value of the indication domain and the matched SRS bandwidth configuration information;

and/or the presence of a gas in the gas,

in the step of detecting whether an indication field is received:

the indication field is included in a higher layer signaling or DCI (Downlink Control Information) or MAC-CE (Medium Access Control-Control Element).

A bandwidth indication method in partial bandwidth detection is applied to a base station, and comprises the following steps:

and transmitting configuration information to the user equipment, wherein the configuration information is used for indicating one of SRS bandwidth configuration information matched with the subband bandwidth of the subband used for transmitting the SRS.

Preferably, the configuration information includes an indication field for indicating one of the plurality of SRS bandwidth configuration information, and a value of the indication field is binary, where a bit number N ═ ceil (log) of the indication field₂M), wherein M represents the number of matched SRS bandwidth configuration information;

and/or the presence of a gas in the gas,

the step of sending the configuration information to the user equipment comprises:

and transmitting the configuration information through higher layer signaling or DCI or MAC-CE.

A bandwidth indicating method in partial bandwidth detection comprises the following steps:

the base station sends first configuration information to the user equipment;

the user equipment detects whether the first configuration information comprises an indication domain corresponding to a subband used for sending an SRS, wherein the indication domain is used for indicating one of a plurality of SRS bandwidth configuration information;

if so, the user equipment acquires a sub-band bandwidth of a sub-band used for sending the SRS, searches a plurality of pieces of SRS bandwidth configuration information matched with the sub-band bandwidth in an SRS bandwidth configuration table, and determines one of the plurality of pieces of SRS bandwidth configuration information as target SRS bandwidth configuration information according to the indication domain;

and the user equipment configures the SRS according to the target SRS bandwidth configuration information.

Preferably, the first configuration information is further used for specifying a number of subbands for transmitting SRS;

after the step of configuring the SRS by the user equipment according to the target SRS bandwidth configuration information, the method further includes:

the user equipment respectively sends the SRS after the configuration is finished on the sub-bands;

and the base station sends second configuration information to the user equipment, wherein the second configuration information is used for appointing one of the subbands as a target subband, and the target subband is used for sending a plurality of SRS.

A bandwidth indication system in partial bandwidth detection, the bandwidth indication system is applied to a user equipment, the bandwidth indication system comprises a detection module, a first determination module and a configuration module, wherein:

the detection module is configured to detect whether an indication field corresponding to a subband used for transmitting an SRS is received, where the indication field is used to indicate one of a plurality of SRS bandwidth configuration information;

if yes, calling the first determining module;

the first determining module includes:

a first obtaining unit, configured to obtain a subband bandwidth of a subband used for transmitting an SRS;

a first searching unit, configured to search, in an SRS bandwidth configuration table, a plurality of SRS bandwidth configuration information matched with the subband bandwidth;

a first determining unit, configured to determine, according to the indication field, that one of the multiple pieces of SRS bandwidth configuration information is target SRS bandwidth configuration information;

the configuration module is used for configuring the SRS according to the target SRS bandwidth configuration information.

Preferably, the first determining module further comprises:

a third obtaining unit, configured to obtain a corresponding relationship between the value of the indication field and the matched SRS bandwidth configuration information;

and/or the presence of a gas in the gas,

the indication field is included in higher layer signaling or DCI or MAC-CE.

A bandwidth indication system in partial bandwidth detection, the bandwidth indication system being applied to a base station, the bandwidth indication system comprising:

a sending module, configured to send configuration information to a user equipment, where the configuration information is used to indicate one of SRS bandwidth configuration information that matches a subband bandwidth of a subband used for sending an SRS.

and/or the presence of a gas in the gas,

the sending module is specifically configured to send the configuration information through a high-level signaling or DCI or MAC-CE.

A bandwidth indicating system in partial bandwidth detection comprises a base station side bandwidth indicating system and a user equipment side bandwidth indicating system; wherein:

the base station side bandwidth indicating system comprises:

the first sending module is used for sending first configuration information to the user equipment;

the user equipment side bandwidth indication system comprises: the device comprises a detection module, a first determination module and a configuration module, wherein:

the detection module is configured to detect whether the first configuration information includes an indication field corresponding to a subband used for transmitting an SRS, where the indication field is used to indicate one of a plurality of SRS bandwidth configuration information;

if yes, calling the first determining module;

the first determining module includes:

the user equipment side bandwidth indication system further comprises:

a second sending module, configured to send the configured SRS on the subbands respectively;

the base station side bandwidth indicating system further comprises:

a third sending module, configured to send second configuration information to the user equipment, where the second configuration information is used to specify one of the subbands as a target subband, and the target subband is used to send multiple SRSs.

An electronic device comprises a memory, a processor and a computer program stored on the memory and capable of running on the processor, wherein the processor executes the computer program to realize any one of the above bandwidth indication methods in partial bandwidth detection.

A computer-readable storage medium, on which a computer program is stored, which, when being executed by a processor, carries out the steps of any of the above-mentioned bandwidth indication methods in partial bandwidth detection.

A base station comprising any of the above bandwidth indication systems for partial bandwidth detection in a base station.

A user equipment comprising any of the above bandwidth indication systems applied to partial bandwidth sounding of the user equipment.

The positive progress effects of the invention are as follows: the invention determines a plurality of SRS bandwidth configuration information sets matched with the SRS bandwidth configuration table according to the subband bandwidth of the subband used for transmitting the SRS and designated by the base station to the user equipment, and then the base station can set an indication field according to the number of the matched SRS bandwidth configuration information to indicate the SRS bandwidth configuration information used for configuring the SRS, because the number (at most 4) of the SRS bandwidth configuration information matched based on the subband width is obviously smaller than the number (64) of the SRS bandwidth configuration information included by the SRS bandwidth configuration table, thereby comparing with the C method adopting the C method_SRSThe method and the device indicate the SRS bandwidth configuration information, and the method and the device indicate the SRS bandwidth configuration information by combining the indication domain on the basis of the known subband bandwidth, wherein the bit number is less, namely, the base station and the user equipment can determine the SRS bandwidth configuration information based on the less bit number.

Drawings

Fig. 1 is a flowchart of a bandwidth indication method in partial bandwidth detection according to embodiment 1 of the present invention.

Fig. 2 is a flowchart of a bandwidth indication method in partial bandwidth detection according to embodiment 2 of the present invention.

Fig. 3 is a flowchart of a bandwidth indication method in partial bandwidth detection according to embodiment 3 of the present invention.

Fig. 4 is a block diagram of a bandwidth indicating system in partial bandwidth detection according to embodiment 4 of the present invention.

Fig. 5 is a block diagram of a bandwidth indicating system during partial bandwidth detection according to embodiment 5 of the present invention.

Fig. 6 is a block diagram of a bandwidth indicating system during partial bandwidth detection according to embodiment 6 of the present invention.

Fig. 7 is a schematic structural diagram of an electronic device according to embodiment 7 of the present invention.

Detailed Description

The invention is further illustrated by the following examples, which are not intended to limit the scope of the invention.

Example 1

Referring to fig. 1, the bandwidth indication method of this embodiment includes:

s101, detecting whether an indication domain corresponding to a sub-band used for sending the SRS is received or not;

if yes, executing steps S102-S104; if not, executing steps S105-S107;

s102, acquiring a sub-band bandwidth of a sub-band used for sending the SRS;

s103, searching a plurality of SRS bandwidth configuration information matched with the sub-band bandwidth in an SRS bandwidth configuration table;

s104, determining one of the plurality of SRS bandwidth configuration information as target SRS bandwidth configuration information according to the indication domain, and subsequently executing step S108;

s105, acquiring a sub-band bandwidth of a sub-band used for sending the SRS;

s106, searching SRS bandwidth configuration information matched with the sub-band bandwidth in the SRS bandwidth configuration table;

s107, determining the SRS bandwidth configuration information as target SRS bandwidth configuration information, and subsequently executing step S108;

and S108, configuring the SRS according to the target SRS bandwidth configuration information.

The subband bandwidth of the subband used for transmitting the SRS may be configured by the base station through higher layer signaling (e.g., RRC) or DCI indication or MAC-CE indication; alternatively, the subband bandwidth of the subband used for transmitting the SRS may be determined by the RB number of the uplink bwp (bandwidth part), for example, the RB number of the uplink bwp (bandwidth part) uniquely corresponds to a subband bandwidth when the RB number of the uplink bwp (bandwidth part) is within a specific interval; alternatively, the subband bandwidth of the subband for transmitting the SRS may be determined in a predefined manner, such as specifying it to be 10PRB, or other values; or, the user equipment obtains the subband bandwidth of the subband used for transmitting the SRS through other manners, which is not limited in the present invention.

In the SRS Bandwidth configuration Table, m_SRS，0The maximum bandwidth that the SRS can be transmitted can be represented, and thus can be used to characterize the subband bandwidth used for transmitting the SRS, and each behavior in the SRS bandwidth configuration table is SRS bandwidth configuration information. In this embodiment, the base station may transmit the indication field to the ue through a higher layer signaling (e.g., RRC (Radio Resource Control), DCI, or MAC-CE), that is, the indication field may be included in the higher layer signaling (e.g., RRC), DCI, or MAC-CE, where the indication field is used to indicate one of the SRS bandwidth configuration information.

In this embodiment, the base station may also instruct, based on a bitmap (bitmap), the user equipment to transmit the SRS on a specified number of subbands, and not transmit the SRS on other subbands, where the subband width may be denoted as W. Wherein the bitmap indication may be configured by higher layer signaling (e.g. RRC) or DCI indication or MAC-CE indication.

For example, in the case that the number of subbands is 4, the base station may instruct the user equipment to transmit the SRS on the designated number of subbands and not to transmit the SRS on other subbands by using 4 bits through higher layer signaling. For example, 1011 means that the user equipment transmits the SRS on the first subband, the third subband, and the fourth subband without transmitting the SRS on the second subband.

As another example, the bandwidth of a subband may be calculated by a bitmap of bits. For example, the total number of bits of the bitmap is N, the total number of PRBs of the uplink BWP of the ue is M, the subband bandwidth from the first subband to the N-1 th subband is floor (M/N), and the subband bandwidth of the nth subband is M- (N-1) × floor (M/N). Where floor (x) denotes rounding down x.

For example, when the bandwidth of the sub-band is indicated as W₁When the SRS is transmitted on a plurality of sub-bands a, in step S101, the ue detects whether the base station transmits the indication field corresponding to the sub-band a, and obtains the sub-band bandwidth W of the sub-band a based on step S105, where the detection result may be that the indication field corresponding to the sub-band a is not received₁The value is 4, and the subband bandwidth W can be determined based on step S106₁Matched SRS Bandwidth configuration information, i.e.，m_SRS，0And sub-band bandwidth W₁SRS bandwidth configuration information with the same value is positioned in the L-th of the SRS bandwidth configuration table₀Line, subband bandwidth W₁The number of the matched SRS bandwidth configuration information is 1, so that the user equipment is based on the sub-band bandwidth W₁The SRS bandwidth configuration information corresponding thereto can be uniquely determined, and then the unique SRS bandwidth can be associated with the subband bandwidth W in step S107₁The corresponding SRS bandwidth configuration information is target SRS bandwidth configuration information.

For example, when the bandwidth of the sub-band is indicated as W₂When the SRS is transmitted on several sub-bands B, in step S101, the user equipment detects whether the base station transmits the indication field corresponding to the sub-band B, and obtains the sub-band bandwidth W of the sub-band B based on step S102, where the detection result may be that the indication field corresponding to the sub-band B is received₂The value is 16, and the subband bandwidth W can be determined based on step S103₂Matched SRS Bandwidth configuration information, i.e., m_SRS，0And sub-band bandwidth W₂SRS bandwidth configuration information with the same value is positioned in the L-th of the SRS bandwidth configuration table₃Row and Lth₄Line, subband bandwidth W₂The number of the matched SRS bandwidth configuration information is 2, thereby being based on the sub-band bandwidth W₂The SRS bandwidth configuration information corresponding to the SRS bandwidth configuration information cannot be uniquely determined, and in step S104, the user equipment determines one of the 2 SRS bandwidth configuration information as the target SRS bandwidth configuration information according to the value of the indication field.

Further, before step S104, a corresponding relationship between the value of the indication field and the SRS bandwidth configuration information matched with the value of the indication field needs to be obtained, where the corresponding relationship may be, for example, the value 0 of the indication field and the lth located in the SRS bandwidth configuration table₃Corresponds to the bandwidth indication information of (1), the value of the indication field is 1 and L < th > located in the SRS bandwidth configuration table₄The bandwidth indication information of (2) corresponds, or a smaller value of the indication field corresponds to the bandwidth indication information with a smaller number of rows, which is not limited in this embodiment.

As another example, when the indication is that the bandwidth is W in the sub-band₃When SRS is transmitted on several subbands C, in step S101, the user equipment determines whether to transmit SRS to the base stationDetecting the indication domain corresponding to the sub-band C, wherein the detection result may be that the indication domain corresponding to the sub-band C is received, and acquiring the sub-band bandwidth W of the sub-band C based on the step S102₃The value is 144, and the subband bandwidth W can be determined based on step S103₃Matched SRS Bandwidth configuration information, i.e., m_SRS，0And sub-band bandwidth W₃SRS bandwidth configuration information with the same value is positioned in the L-th of the SRS bandwidth configuration table₃₅Line, L₃₆Line, L₃₇Row and Lth₃₈Line, subband bandwidth W₃The number of the matched SRS bandwidth configuration information is 4, thereby being based on the sub-band bandwidth W₃The SRS bandwidth configuration information corresponding to the SRS bandwidth configuration information cannot be uniquely determined, and in step S104, the user equipment determines one of the 4 SRS bandwidth configuration information as the target SRS bandwidth configuration information according to the value of the indication field.

Further, before step S104, a corresponding relationship between the value of the indication field and the SRS bandwidth configuration information matched thereto needs to be obtained, where the corresponding relationship may be, for example, the value 00 of the indication field and the lth located in the SRS bandwidth configuration table₃₅Corresponding to the bandwidth indication information of (1), the value 01 of the indication field and the L-th bandwidth allocation table₃₆Corresponds to the bandwidth indication information of (1), and the value 10 of the indication field is the L-th value in the SRS bandwidth configuration table₃₇Corresponds to the bandwidth indication information of (1), and the value 11 of the indication field is the L-th value in the SRS bandwidth configuration table₃₈The bandwidth indication information of (2) corresponds, or a smaller value of the indication field corresponds to the bandwidth indication information with a smaller number of rows, which is not limited in this embodiment.

After determining the target SRS bandwidth configuration information, the method can be further based on B_SRSAnd n_RRCTo determine the starting frequency-domain location of the SRS on the corresponding subband and the number of PRBs.

In step S102 and step S105 of this embodiment, the user equipment may acquire the subband bandwidth of the subband used for transmitting the SRS through a higher layer parameter configuration or a predefined manner, where the predefined manner may be, for example, the subband bandwidth associated with a value of SCS (sub-carrier Spacing), and the user equipment may also acquire the subband bandwidth of the subband used for transmitting the SRS by following the definition of the subband in the existing CSI (Channel State Information) feedback, which is not limited in this embodiment.

In this embodiment, based on whether the user equipment receives the detection result of the indication field corresponding to the subband used for transmitting the SRS and transmitted by the base station, the user equipment may determine the target SRS bandwidth configuration information according to the subband bandwidth used for transmitting the SRS only, or may determine the target SRS bandwidth configuration information according to the subband bandwidth used for transmitting the SRS and the corresponding indication field, and on the premise that the subband bandwidth is known, the target SRS bandwidth configuration information needs 6 bits of C compared with the target SRS bandwidth configuration information needing 6 bits of C_SRSIn this embodiment, the target SRS bandwidth configuration information for configuring the SRS may be indicated based on the indication field that requires at most 2 bits, that is, the user equipment may determine the target SRS bandwidth configuration information for configuring the SRS based on a smaller number of bits.

Example 2

The present embodiment provides a bandwidth indication method applied to partial bandwidth detection of a base station, and the bandwidth indication method of the present embodiment includes a step of transmitting configuration information to a user equipment, where the configuration information is used to indicate one of SRS bandwidth configuration information that matches a subband bandwidth of a subband used for transmitting an SRS, and specifically, the configuration information may include an indication field used to indicate one of a plurality of SRS bandwidth configuration information. Referring to fig. 2, the step of sending the configuration information to the user equipment may specifically include:

s201, configuring a sub-band bandwidth of a sub-band used for sending SRS by user equipment;

s202, searching SRS bandwidth configuration information matched with the sub-band bandwidth in an SRS bandwidth configuration table;

s203, judging whether the number of the matched SRS bandwidth configuration information exceeds one;

if yes, go to step S204; if not, go to step S205;

s204, sending an indication domain to the user equipment;

and S205, not sending the indication domain to the user equipment.

In the SRS Bandwidth configuration Table, m_SRS，0The maximum bandwidth that the SRS can be transmitted can be represented, and thus can be used to characterize the subband bandwidth used for transmitting the SRS, and each behavior in the SRS bandwidth configuration table is SRS bandwidth configuration information.

In this embodiment, the base station may instruct, based on the bitmap, the user equipment to transmit the SRS on a specified number of subbands, and not transmit the SRS on other subbands, where the configured subband width may be denoted as W. Wherein the bitmap indication may be configured by higher layer signaling (e.g. RRC) or DCI indication or MAC-CE indication.

For example, when the bandwidth of the sub-band is indicated as W₁When SRS is transmitted on several sub-bands AConfiguring subband bandwidth W₁The value is 4, and the subband bandwidth W can be determined based on step S202₁Matched SRS Bandwidth configuration information, i.e., m_SRS，0And sub-band bandwidth W₁SRS bandwidth configuration information with the same value is positioned in the L-th of the SRS bandwidth configuration table₀Line, subband bandwidth W₁The number of the matched SRS bandwidth configuration information is 1, thereby being based on the sub-band bandwidth W₁The SRS bandwidth configuration information corresponding to the SRS bandwidth configuration information can be uniquely determined, that is, an indication field for indicating the SRS bandwidth configuration information does not need to be configured, that is, in this case, the indication field can be set by default, that is, the indication field does not need to be transmitted to the user equipment.

For example, when the bandwidth of the sub-band is indicated as W₂When the SRS is transmitted on a plurality of sub-bands B, the sub-band bandwidth W is configured₂A value of 16, based on step S202, the subband bandwidth W can be determined₂Matched SRS Bandwidth configuration information, i.e., m_SRS，0And sub-band bandwidth W₂SRS bandwidth configuration information with the same value is positioned in the L-th of the SRS bandwidth configuration table₃Row and Lth₄Line, subband bandwidth W₂The number of the matched SRS bandwidth configuration information is 2, thereby being based on the sub-band bandwidth W₂The SRS bandwidth configuration information corresponding to the SRS bandwidth configuration information cannot be uniquely determined, and the base station needs to indicate one of the 2 SRS bandwidth configuration information by transmitting an indication field to the user equipment, so that the user equipment can determine the SRS bandwidth configuration information based on the subband bandwidth W₂And indicating the value of the domain to determine the SRS bandwidth configuration information finally used for configuring the SRS.

In step S204, the value of the indication field may adopt a binary system, wherein the bit number of the indication field may be ceil (log) according to the formula N₂M), ceil (x) indicates rounding up x, in this embodiment, M indicates the number of matched SRS bandwidth configuration information, and for subband B, the value of M is 2, so that the bit number N of the indication field may be determined to be 1.

Further, before step S204, a corresponding relationship between the value of the indication field and the SRS bandwidth configuration information matched with the value of the indication field needs to be set, for example, the value of the indication field 0 and the SRS bandwidth configuration information located in the indication field may be setLth of SRS Bandwidth configuration Table₃Corresponding to the bandwidth indication information, setting the value 1 of the indication field and the L-th bandwidth allocation table in the SRS bandwidth allocation table₄The bandwidth indication information of (2) corresponds to, a smaller value of the indication field may also be set to correspond to the bandwidth indication information with a smaller number of rows, which is not limited in this embodiment.

As another example, when the indication is that the bandwidth is W in the sub-band₃When the SRS is transmitted on a plurality of sub-bands C, the sub-band bandwidth W is configured₃The value is 144, and the subband bandwidth W can be determined based on step S202₃Matched SRS Bandwidth configuration information, i.e., m_SRS，0And sub-band bandwidth W₃SRS bandwidth configuration information with the same value is positioned in the L-th of the SRS bandwidth configuration table₃₅Line, L₃₆Line, L₃₇Row and Lth₃₈Line, subband bandwidth W₃The number of the matched SRS bandwidth configuration information is 4, thereby being based on the sub-band bandwidth W₃The SRS bandwidth configuration information corresponding to the SRS bandwidth configuration information cannot be uniquely determined, and the base station needs to indicate one of the 4 SRS bandwidth configuration information by transmitting an indication field to the user equipment, so that the user equipment can determine the SRS bandwidth configuration information based on the subband bandwidth W₃And indicating the value of the domain to determine the SRS bandwidth configuration information finally used for configuring the SRS.

In step S204, for the subband C, the number M of the SRS bandwidth configuration information matched to the subband C is set to be 4, so that the bit number N of the indication field may be determined to be 2. Further, before step S204, a corresponding relationship between the value of the indication field and the SRS bandwidth configuration information matched with the value of the indication field needs to be set, for example, the value 00 of the indication field and the L-th frame in the SRS bandwidth configuration table may be set₃₅Corresponding to the bandwidth indication information, setting the value 01 of the indication field and the L-th bandwidth allocation table in the SRS bandwidth allocation table₃₆Corresponding to the bandwidth indication information, the value 10 of the setting indication field and the L-th value in the SRS bandwidth configuration table₃₇Corresponding to the bandwidth indication information, the value 11 of the setting indication field and the L-th bandwidth allocation table₃₈The bandwidth indication information of (2) corresponds to, a smaller value of the indication field may also be set to correspond to the bandwidth indication information with a smaller number of lines, which is not limited in this embodiment。

In step S204 of this embodiment, the base station may specifically transmit the configuration information to the user equipment through higher layer signaling (e.g., RRC), DCI, MAC-CE, or the like.

In this embodiment, a number of sets of SRS bandwidth configuration information matched with the SRS bandwidth configuration table in the SRS bandwidth configuration table is determined according to the subband bandwidth of the subband used for transmitting the SRS, which is specified by the base station to the user equipment, and then the base station may set an indication field according to the number of the matched SRS bandwidth configuration information to indicate the SRS bandwidth configuration information used for configuring the SRS, on the premise that the subband bandwidth is known, compared with the SRS bandwidth configuration information requiring 6 bits of C_SRSIn this embodiment, the bandwidth configuration of the SRS can be indicated based on the indication field that requires at most 2 bits, that is, the base station may indicate the bandwidth configuration of the SRS based on a smaller number of bits.

Example 3

Referring to fig. 3, the bandwidth indication method in this embodiment includes:

s301, the base station sends first configuration information to the user equipment;

s302, the user equipment detects whether the first configuration information comprises an indication domain corresponding to a sub-band used for sending the SRS;

if yes, executing steps S303-S305; if not; executing steps S306-S308;

s303, the user equipment acquires the sub-band bandwidth of the sub-band used for sending the SRS;

s304, the user equipment searches a plurality of pieces of SRS bandwidth configuration information matched with the sub-band bandwidth in the SRS bandwidth configuration table;

s305, the user equipment determines one of the plurality of SRS bandwidth configuration information as target SRS bandwidth configuration information according to the indication domain, and then executes step S309;

s306, the user equipment acquires the sub-band bandwidth of the sub-band used for sending the SRS;

s307, the user equipment searches SRS bandwidth configuration information matched with the sub-band bandwidth in the SRS bandwidth configuration table;

s308, the user equipment determines that the SRS bandwidth configuration information is the target SRS bandwidth configuration information, and then step S309 is executed;

s309, the user equipment configures the SRS according to the target SRS bandwidth configuration information;

s310, the user equipment respectively sends the SRS after the configuration is finished on a plurality of sub-bands;

s311, the base station sends the second configuration information to the user equipment.

In this embodiment, the first configuration information may be used to specify several subbands for transmitting the SRS, and specifically, the base station may instruct, based on the bitmap, the user equipment to transmit the SRS on the specified several subbands and not transmit the SRS on other subbands, where the configured subband width may be denoted as W. Wherein the bitmap indication may be configured by higher layer signaling (e.g. RRC) or DCI indication or MAC-CE indication.

As another example, the bandwidth of a subband may be calculated by a bitmap of bits. For example, the total number of bits of the bitmap is N, the total number of PRBs of the uplink BWP of the ue is M, the subband bandwidth from the first subband to the N-1 th subband is floor (M/N), and the subband bandwidth of the nth subband is M- (N-1) × floor (M/N). Where floor (x) denotes rounding down x. For example, when the bandwidth of the sub-band is indicated as W₁When the SRS is transmitted on a plurality of subbands a, a subband bandwidth W may be configured first₁The value is 4, and then the sub-band bandwidth W can be determined₁Matched SRS Bandwidth configuration information, i.e., m_SRS，0And sub-band bandwidth W₁SRS bandwidth configuration information with the same value is positioned in the L-th of the SRS bandwidth configuration table₀Line, subband bandwidth W₁The number of the matched SRS bandwidth configuration information is 1, thereby being based on the sub-band bandwidth W₁The SRS bandwidth configuration information corresponding to the SRS bandwidth configuration information can be uniquely determined, that is, an indication field for indicating the SRS bandwidth configuration information does not need to be configured, that is, in this case, the indication field can be set by default, that is, the indication field does not need to be transmitted to the user equipment.

In step S302, the ue detects whether the first configuration information includes an indication field corresponding to the subband a, and obtains the subband bandwidth W of the subband a based on step S306 if the detection result is that the indication field corresponding to the subband a is not received₁The value is 4, and the subband bandwidth W can be determined based on step S307₁The matched SRS bandwidth configuration information is positioned at the L-th of the SRS bandwidth configuration table₀Line, subband bandwidth W₁The number of the matched SRS bandwidth configuration information is 1, so that the user equipment is based on the sub-band bandwidth W₁The SRS bandwidth configuration information corresponding thereto can be uniquely determined, and then the unique SRS bandwidth W can be associated with the subband bandwidth W in step S308₁The corresponding SRS bandwidth configuration information is target SRS bandwidth configuration information.

For example, when the bandwidth of the sub-band is indicated as W₂When the SRS is transmitted on a plurality of subbands B, a subband bandwidth W may be configured first₂A value of 16, and thus the subband bandwidth W can be determined₂Matched SRS Bandwidth configuration information, i.e., m_SRS，0And sub-band bandwidth W₁SRS bandwidth configuration information with the same value is positioned in the L-th of the SRS bandwidth configuration table₃Row and Lth₄Line, subband bandwidth W₂The number of the matched SRS bandwidth configuration information is 2, thereby being based on the sub-band bandwidth W₂The SRS bandwidth configuration information corresponding to the SRS bandwidth configuration information cannot be uniquely determined, and the base station needs to indicate one of the 2 SRS bandwidth configuration information by transmitting an indication field to the user equipment, so that the user equipment can determine the SRS bandwidth configuration information based on the subband bandwidth W₂And indicating the value of the domain to determine the SRS bandwidth configuration information finally used for configuring the SRS.

The value of the indication field may adopt a binary system, wherein the bit number of the indication field may be ceil (log) according to a formula N₂M), ceil (x) indicates rounding up x, in this embodiment, M indicates the number of matched SRS bandwidth configuration information, and for subband B, the value of M is 2, so that the bit number N of the indication field may be determined to be 1.

Further, before sending the indication field to the user equipment, a corresponding relationship between a value of the indication field and the SRS bandwidth configuration information matched with the value of the indication field needs to be set, for example, a value 0 of the indication field and an lth value located in the SRS bandwidth configuration table may be set₃Corresponding to the bandwidth indication information, setting the value 1 of the indication field and the L-th bandwidth allocation table in the SRS bandwidth allocation table₄The bandwidth indication information of (2) corresponds to, a smaller value of the indication field may also be set to correspond to the bandwidth indication information with a smaller number of rows, which is not limited in this embodiment.

In step S302, the ue detects whether the base station transmits an indication field corresponding to subband B, and obtains the subband bandwidth W of subband B based on step S303 when the detection result is that the indication field corresponding to subband B is received₂The value is 16, and the subband bandwidth W can be determined based on step S304₂The matched SRS bandwidth configuration information is positioned at the L-th of the SRS bandwidth configuration table₃Row and Lth₄Line, subband bandwidth W₂The number of the matched SRS bandwidth configuration information is 2, thereby being based on the sub-band bandwidth W₂Cannot uniquely determine the SRS bandwidth configuration information corresponding to the SRS bandwidth configuration informationIn step S305, the ue determines one of the 2 SRS bandwidth configuration information as the target SRS bandwidth configuration information according to the value of the indication field. Further, before step S305, a corresponding relationship between the value of the indication field and the matched SRS bandwidth configuration information needs to be obtained.

As another example, when the indication is that the bandwidth is W in the sub-band₃When the SRS is transmitted on a plurality of subbands C, a subband bandwidth W may be configured first₃A value of 144 may be taken to determine the subband bandwidth W₃Matched SRS Bandwidth configuration information, i.e., m_SRS，0And sub-band bandwidth W₃SRS bandwidth configuration information with the same value is positioned in the L-th of the SRS bandwidth configuration table₃₅Line, L₃₆Line, L₃₇Row and Lth₃₈Line, subband bandwidth W₃The number of the matched SRS bandwidth configuration information is 4, thereby being based on the sub-band bandwidth W₃The SRS bandwidth configuration information corresponding to the SRS bandwidth configuration information cannot be uniquely determined, and the base station needs to indicate one of the 4 SRS bandwidth configuration information by transmitting an indication field to the user equipment, so that the user equipment can determine the SRS bandwidth configuration information based on the subband bandwidth W₃And indicating the value of the domain to determine the SRS bandwidth configuration information finally used for configuring the SRS.

For the subband C, the value of the number M of the SRS bandwidth configuration information matched with the subband C is 4, so that the bit number N of the indication field may be determined to be 2. Further, before sending the indication field to the user equipment, a corresponding relationship between the value of the indication field and the SRS bandwidth configuration information matched with the value of the indication field needs to be set, for example, the value 00 of the indication field and the lth value located in the SRS bandwidth configuration table may be set₃₅Corresponding to the bandwidth indication information, setting the value 01 of the indication field and the L-th bandwidth allocation table in the SRS bandwidth allocation table₃₆Corresponding to the bandwidth indication information, the value 10 of the setting indication field and the L-th value in the SRS bandwidth configuration table₃₇Corresponding to the bandwidth indication information, the value 11 of the setting indication field and the L-th bandwidth allocation table₃₈The bandwidth indication information of (2) corresponds to, a smaller value of the indication field may also be set to correspond to the bandwidth indication information with a smaller number of rows, which is not limited in this embodiment.

In step S302, the ue detects whether the base station transmits an indication field corresponding to the subband C, and obtains the subband bandwidth W of the subband C based on step S303 when the detection result is that the indication field corresponding to the subband C is received₃Taking the value as 144, the sum-subband bandwidth W can be determined based on step S304₃The matched SRS bandwidth configuration information is positioned at the L-th of the SRS bandwidth configuration table₃₅Line, L₃₆Line, L₃₇Row and Lth₃₈Line, subband bandwidth W₃The number of the matched SRS bandwidth configuration information is 4, thereby being based on the sub-band bandwidth W₃The SRS bandwidth configuration information corresponding thereto cannot be uniquely determined, and in step S305, the user equipment determines one of the 4 SRS bandwidth configuration information as the target SRS bandwidth configuration information according to the value of the indication field. Further, before step S305, a corresponding relationship between the value of the indication field and the matched SRS bandwidth configuration information needs to be obtained.

After determining the target SRS bandwidth configuration information, in step S309, it may be further based on B_SRSAnd n_RRCTo determine the starting frequency-domain location of the SRS on the corresponding subband and the number of PRBs.

In this embodiment, the user equipment respectively transmits the configured SRS on a plurality of subbands, the base station may designate a subband with better quality as a target subband according to the SRS transmitted on the plurality of subbands, and the subsequent base station may designate the target subband for transmitting the plurality of SRS by transmitting the second configuration information to the user equipment, and further, the base station may designate a subband bandwidth in which SRS transmission may occupy the target subband.

In steps S303 and S306 of this embodiment, the user equipment may acquire the subband bandwidth of the subband used for transmitting the SRS through a high-layer parameter configuration or a predefined manner, where the predefined manner may be, for example, the subband bandwidth associated with the value of the SCS, and the user equipment may also acquire the subband bandwidth of the subband used for transmitting the SRS by following the definition of the subband in the existing CSI feedback, which is not limited in this embodiment.

In this embodiment, the base station may specifically send the first configuration information to the user equipment through higher layer signaling (e.g., RRC), DCI, or MAC-CE, and the like, that is, the first configuration information may be included in the higher layer signaling (e.g., RRC), DCI, or MAC-CE.

In this embodiment, a number of sets of SRS bandwidth configuration information matched with the SRS bandwidth configuration table in the SRS bandwidth configuration table is determined according to the subband bandwidth of the subband used for transmitting the SRS, which is specified by the base station to the user equipment, and then the base station may set an indication field according to the number of the matched SRS bandwidth configuration information to indicate the SRS bandwidth configuration information used for configuring the SRS, on the premise that the subband bandwidth is known, compared with the SRS bandwidth configuration information requiring 6 bits of C_SRSIn this embodiment, the bandwidth configuration of the SRS can be indicated based on the indication field that requires at most 2 bits, that is, the base station and the user equipment may determine the SRS bandwidth configuration information based on a smaller number of bits.

Example 4

Referring to fig. 4, the bandwidth indication system of this embodiment includes:

a detecting module 401, configured to detect whether an indication field corresponding to a subband used for transmitting an SRS is received;

if yes, call the first determination module 402; if not, a second determination module 403 is called;

wherein the first determining module 402 comprises:

a first obtaining unit 4021, configured to obtain a subband bandwidth of a subband used for transmitting an SRS;

a first searching unit 4022, configured to search multiple pieces of SRS bandwidth configuration information matched with the subband bandwidth in the SRS bandwidth configuration table;

a first determining unit 4023, configured to determine, according to the indication domain, one of the multiple pieces of SRS bandwidth configuration information as the target SRS bandwidth configuration information;

wherein the second determining module 403 includes:

a second obtaining unit 4031, configured to obtain a subband bandwidth of a subband used for transmitting an SRS;

a second searching unit 4032, configured to search, in the SRS bandwidth configuration table, one SRS bandwidth configuration information that matches the subband bandwidth;

a second determining unit 4033, configured to determine that the SRS bandwidth configuration information is target SRS bandwidth configuration information;

a configuring module 404, configured to configure the SRS according to the target SRS bandwidth configuration information.

In the SRS Bandwidth configuration Table, m_SRS，0The maximum bandwidth that the SRS can be transmitted can be represented, and thus can be used to characterize the subband bandwidth used for transmitting the SRS, and each behavior in the SRS bandwidth configuration table is SRS bandwidth configuration information. In this embodiment, the base station may transmit the indication field to the user equipment through higher layer signaling (e.g., RRC) or DCI or MAC-CE, etc., that is, the indication field may be included in the higher layer signaling (e.g., RRC) or DCI or MAC-CE, etc., where the indication field is used to indicate one of the plurality of SRS bandwidth configuration information.

In this embodiment, the base station may also instruct, based on the bitmap, the user equipment to transmit the SRS on a specified number of subbands, and not transmit the SRS on other subbands, where the subband width may be denoted as W. Wherein the bitmap indication may be configured by higher layer signaling (e.g. RRC) or DCI indication or MAC-CE indication.

For example, when the bandwidth of the sub-band is indicated as W₁When the SRS is transmitted on the plurality of sub-bands a, based on the detection module 401, the user equipment detects whether the base station transmits the indication domain corresponding to the sub-band a, and the detection result may be that the indication domain corresponding to the sub-band a is not received, and based on the second obtaining unit 4031, the sub-band bandwidth W of the sub-band a is obtained₁The value is 4, and the subband bandwidth W may be determined based on the second lookup unit 4032₁Matched SRS Bandwidth configuration information, i.e., m_SRS，0And sub-band bandwidth W₁SRS bandwidth configuration information with the same value is positioned in the L-th of the SRS bandwidth configuration table₀Line, subband bandwidth W₁The number of the matched SRS bandwidth configuration information is 1, so that the user equipment is based on the sub-band bandwidth W₁The SRS bandwidth configuration information corresponding to the SRS bandwidth can be uniquely determined, and then the SRS bandwidth configuration information can be uniquely determined according to the subband bandwidth W based on the second determination unit 4033₁The corresponding SRS bandwidth configuration information is target SRS bandwidth configuration information.

For example, when the bandwidth of the sub-band is indicated as W₂When the SRS is transmitted on the plurality of sub-bands B, based on the detection module 401, the user equipment detects whether the base station transmits the indication field corresponding to the sub-band B, and the detection result may be that the indication field corresponding to the sub-band B is received, and based on the first obtaining unit 4021, the sub-band bandwidth W of the sub-band B is obtained₂The value is 16, and the subband bandwidth W can be determined based on the first search unit 4022₂Matched SRS Bandwidth configuration information, i.e., m_SRS，0And sub-band bandwidth W₂SRS bandwidth configuration information with the same value and positioned in SRS bandwidth configurationL th of the table₃Row and Lth₄Line, subband bandwidth W₂The number of the matched SRS bandwidth configuration information is 2, thereby being based on the sub-band bandwidth W₂The SRS bandwidth configuration information corresponding to the SRS bandwidth configuration information cannot be uniquely determined, and in this embodiment, the user equipment determines one of the 2 SRS bandwidth configuration information as the target SRS bandwidth configuration information according to the value of the indication field.

Further, in this embodiment, the first determining module 402 may further include a third obtaining unit 4024 configured to obtain a corresponding relationship between the value of the indication field and the SRS bandwidth configuration information matched thereto, where the corresponding relationship may be, for example, the value 0 of the indication field and the lth located in the SRS bandwidth configuration table₃Corresponds to the bandwidth indication information of (1), the value of the indication field is 1 and L < th > located in the SRS bandwidth configuration table₄The bandwidth indication information of (2) corresponds, or a smaller value of the indication field corresponds to the bandwidth indication information with a smaller number of rows, which is not limited in this embodiment.

As another example, when the indication is that the bandwidth is W in the sub-band₃When the SRS is transmitted on the plurality of sub-bands C, based on the detection module 401, the user equipment detects whether the base station transmits the indication field corresponding to the sub-band C, and the detection result may be that the indication field corresponding to the sub-band C is received, and the first obtaining unit 4021 obtains the sub-band bandwidth W of the sub-band C₃The value is 144, and the sum subband bandwidth W may be determined based on the first search unit 4022₃Matched SRS Bandwidth configuration information, i.e., m_SRS，0And sub-band bandwidth W₃SRS bandwidth configuration information with the same value is positioned in the L-th of the SRS bandwidth configuration table₃₅Line, L₃₆Line, L₃₇Row and Lth₃₈Line, subband bandwidth W₃The number of the matched SRS bandwidth configuration information is 4, thereby being based on the sub-band bandwidth W₃The SRS bandwidth configuration information corresponding to the SRS bandwidth configuration information cannot be uniquely determined, and in this embodiment, the user equipment determines one of the 4 SRS bandwidth configuration information as the target SRS bandwidth configuration information according to the value of the indication field.

Further, in this embodiment, the correspondence relationship acquired by the third acquisition unit 4024For example, the value 00 of the indication field and the L-th value located in the SRS bandwidth configuration table may be₃₅Corresponding to the bandwidth indication information of (1), the value 01 of the indication field and the L-th bandwidth allocation table₃₆Corresponds to the bandwidth indication information of (1), and the value 10 of the indication field is the L-th value in the SRS bandwidth configuration table₃₇Corresponds to the bandwidth indication information of (1), and the value 11 of the indication field is the L-th value in the SRS bandwidth configuration table₃₈The bandwidth indication information of (2) corresponds, or a smaller value of the indication field corresponds to the bandwidth indication information with a smaller number of rows, which is not limited in this embodiment.

In this embodiment, first obtaining unit 4021 and second obtaining unit 4031 may obtain the subband bandwidth of the subband used for transmitting the SRS through a higher layer parameter configuration or a predefined manner, where the predefined manner may be, for example, the subband bandwidth associated with the value of the SCS, or may obtain the subband bandwidth of the subband used for transmitting the SRS by following the definition of the subband in the existing CSI feedback, which is not limited in this embodiment.

Example 5

The present embodiment provides a bandwidth indication system applied to partial bandwidth detection of a base station, and the bandwidth indication system of the present embodiment includes a transmission module configured to transmit configuration information to a user equipment, where the configuration information is used to indicate one of SRS bandwidth configuration information that matches a subband bandwidth of a subband used to transmit an SRS, and specifically, the configuration information may include an indication field used to indicate one of a plurality of SRS bandwidth configuration information. Referring to fig. 5, the sending module 50 may specifically include:

a configuration unit 501, configured to configure a subband bandwidth of a subband used by a user equipment for sending an SRS;

a searching unit 502, configured to search SRS bandwidth configuration information matched with a subband bandwidth in an SRS bandwidth configuration table;

a determining unit 503, configured to determine whether the number of the matched SRS bandwidth configuration information exceeds one;

if yes, invoking a sending unit 504, where the sending unit 504 is configured to send an indication field to the user equipment;

if not, then the sending unit 504 is not invoked.

For example, when the bandwidth of the sub-band is indicated as W₁When the SRS is transmitted on a plurality of sub-bands A, the sub-band bandwidth W is configured₁With a value of 4, based on the search unit 502, the subband bandwidth W can be determined₁Matched SRS Bandwidth configuration information, i.e., m_SRS，0And sub-band bandwidth W₁SRS bandwidth configuration information with the same value is positioned in the L-th of the SRS bandwidth configuration table₀Line, subband bandwidth W₁The number of the matched SRS bandwidth configuration information is 1, thereby being based on the sub-band bandwidth W₁The SRS bandwidth configuration information corresponding to the SRS bandwidth configuration information can be uniquely determined, that is, an indication field for indicating the SRS bandwidth configuration information does not need to be configured, that is, in this case, the indication field can be set by default, that is, the indication field does not need to be transmitted to the user equipment.

For example, when the bandwidth of the sub-band is indicated as W₂When the SRS is transmitted on a plurality of sub-bands B, the sub-band bandwidth W is configured₂The value is 16, and the subband bandwidth W can be determined based on the search unit 502₂Matched SRS Bandwidth configuration information, i.e., m_SRS，0And sub-band bandwidth W₂SRS bandwidth configuration information with the same value is positioned in the L-th of the SRS bandwidth configuration table₃Row and Lth₄Line, subband bandwidth W₂The number of the matched SRS bandwidth configuration information is 2, thereby being based on the sub-band bandwidth W₂The SRS bandwidth configuration information corresponding to the SRS bandwidth configuration information cannot be uniquely determined, and the base station needs to indicate one of the 2 SRS bandwidth configuration information by transmitting an indication field to the user equipment, so that the user equipment can determine the SRS bandwidth configuration information based on the subband bandwidth W₂And indicating the value of the domain to determine the SRS bandwidth configuration information finally used for configuring the SRS.

In this embodiment, the value of the indication field may adopt a binary system, wherein the bit number of the indication field may be ceil (log) according to the formula N₂M), ceil (x) indicates rounding up x, in this embodiment, M indicates the number of matched SRS bandwidth configuration information, and for subband B, the value of M is 2, so that the bit number N of the indication field may be determined to be 1.

Further, in this embodiment, a setting unit 505 for setting a corresponding relationship between a value of the indication field and the SRS bandwidth configuration information matched thereto may be further included, for example, a value 0 of the indication field and an lth indicator located in the SRS bandwidth configuration table may be set₃Corresponding to the bandwidth indication information, setting the value 1 of the indication field and the L-th bandwidth allocation table in the SRS bandwidth allocation table₄The bandwidth indication information of (2) corresponds to, a smaller value of the indication field may also be set to correspond to the bandwidth indication information with a smaller number of rows, which is not limited in this embodiment.

As another example, when the indication is that the bandwidth is W in the sub-band₃When the SRS is transmitted on a plurality of sub-bands C, the sub-band bandwidth W is configured₃Taking the value as 144, the subband bandwidth W may be determined based on the search unit 502₃Matched SRS Bandwidth configuration information, i.e., m_SRS，0And sub-band bandwidth W₃SRS bandwidth configuration information with the same value is positioned in the L-th of the SRS bandwidth configuration table₃₅Line, L₃₆Line, L₃₇Row and Lth₃₈Line, subband bandwidth W₃The number of the matched SRS bandwidth configuration information is 4, thereby being based on the sub-band bandwidth W₃The SRS bandwidth configuration information corresponding to the SRS bandwidth configuration information cannot be uniquely determined, and the base station needs to transmit an indication field to the user equipment to configure one of 4 pieces of SRS bandwidth configuration informationIndicating so that the user equipment can be based on the sub-band bandwidth W₃And indicating the value of the domain to determine the SRS bandwidth configuration information finally used for configuring the SRS.

In this embodiment, for the subband C, the value of the number M of the SRS bandwidth configuration information matched to the subband C is 4, so that the bit number N of the indication field may be determined to be 2. Further, in this embodiment, for example, the setting unit 505 may set the value 00 of the indication field and the lth located in the SRS bandwidth configuration table₃₅Corresponding to the bandwidth indication information, setting the value 01 of the indication field and the L-th bandwidth allocation table in the SRS bandwidth allocation table₃₆Corresponding to the bandwidth indication information, the value 10 of the setting indication field and the L-th value in the SRS bandwidth configuration table₃₇Corresponding to the bandwidth indication information, the value 11 of the setting indication field and the L-th bandwidth allocation table₃₈The setting unit 505 may also set a smaller value of the indication field corresponding to the bandwidth indication information with a smaller number of rows, which is not limited in this embodiment.

In this embodiment, the transmitting module 50 may specifically transmit the configuration information to the user equipment through higher layer signaling (e.g., RRC), DCI, MAC-CE, or the like.

Example 6

Referring to fig. 6, the bandwidth indication system of this embodiment includes a base station side bandwidth indication system 61 and a user equipment side bandwidth indication system 62, where the base station side bandwidth indication system 61 is a bandwidth indication system applied to the base station during the partial bandwidth detection, and the user equipment side bandwidth indication system 62 is a bandwidth indication system applied to the user equipment during the partial bandwidth detection.

Specifically, in this embodiment, the base station side bandwidth indicating system 61 includes:

a first sending module 611, configured to send first configuration information to a user equipment;

a third sending module 612, configured to send second configuration information to the user equipment;

the user equipment side bandwidth indication system 62 includes:

a detecting module 621, configured to detect whether the first configuration information includes an indication field corresponding to a subband used for transmitting the SRS;

if so, the first determination module 622 is invoked; if not, a second determination module 623 is called;

wherein the first determining module 622 includes:

a first acquisition unit 6221 configured to acquire a subband bandwidth of a subband used to transmit the SRS;

a first searching unit 6222, configured to search, in the SRS bandwidth configuration table, a plurality of SRS bandwidth configuration information matched with the subband bandwidth;

a first determining unit 6223, configured to determine one of the plurality of SRS bandwidth configuration information as the target SRS bandwidth configuration information according to the indication field;

wherein the second determining module 623 comprises:

a second acquisition unit 6231 configured to acquire a subband bandwidth of a subband used to transmit the SRS;

a second searching unit 6232, configured to search, in the SRS bandwidth configuration table, one SRS bandwidth configuration information matched with the subband bandwidth;

a second determining unit 6233, configured to determine the SRS bandwidth configuration information as the target SRS bandwidth configuration information;

a configuration module 624, configured to configure SRS according to the target SRS bandwidth configuration information;

a second sending module 625, configured to send the configured SRS on several subbands respectively.

For example, when the bandwidth of the sub-band is indicated as W₁When the SRS is transmitted on a plurality of subbands a, a subband bandwidth W may be configured first₁The value is 4, and then the sub-band bandwidth W can be determined₁Matched SRS Bandwidth configuration information, i.e., m_SRS，0And sub-band bandwidth W₁SRS bandwidth configuration information with the same value is positioned in the L-th of the SRS bandwidth configuration table₀Line, subband bandwidth W₁The number of the matched SRS bandwidth configuration information is 1, thereby being based on the sub-band bandwidth W₁The SRS bandwidth configuration information corresponding to the SRS bandwidth configuration information can be uniquely determined, that is, an indication field for indicating the SRS bandwidth configuration information does not need to be configured, that is, in this case, the indication field can be set by default, that is, the indication field does not need to be transmitted to the user equipment.

Based on the detecting module 621, the ue detects whether the first configuration information includes an indication field corresponding to the sub-band a, and obtains the sub-band bandwidth W of the sub-band a based on the second obtaining unit 6231 when the detection result is that the indication field corresponding to the sub-band a is not received₁A value of 4, based on which the second searching unit 6232 can determine the subband bandwidth W₁The matched SRS bandwidth configuration information is positioned at the L-th of the SRS bandwidth configuration table₀Line, subband bandwidth W₁The number of the matched SRS bandwidth configuration information is 1, so that the user equipment is based on the sub-band bandwidth W₁The SRS bandwidth configuration information corresponding thereto can be uniquely determined, and then the second determining unit 6233 can uniquely determine the sub-band bandwidth W₁The corresponding SRS bandwidth configuration information is target SRS bandwidth configuration information.

For example, when the bandwidth of the sub-band is indicated as W₂When the SRS is transmitted on a plurality of subbands B, a subband bandwidth W may be configured first₂A value of 16, and thus the subband bandwidth W can be determined₂Matched SRS Bandwidth configuration information, i.e., m_SRS，0And sub-band bandwidth W₁SRS bandwidth configuration information with the same value is positioned in the L-th of the SRS bandwidth configuration table₃Row and Lth₄Line, subband bandwidth W₂The number of the matched SRS bandwidth configuration information is 2, thereby being based on the sub-band bandwidth W₂Cannot uniquely determine the SRS bandwidth configuration information corresponding to the SRS bandwidth configuration informationThe station needs to indicate one of the 2 SRS bandwidth configuration information by transmitting an indication field to the user equipment, so that the user equipment can indicate the SRS bandwidth based on the subband bandwidth W₂And indicating the value of the domain to determine the SRS bandwidth configuration information finally used for configuring the SRS.

Further, before sending the indication field to the user equipment, a corresponding relationship between a value of the indication field and the SRS bandwidth configuration information matched with the value needs to be preset, for example, a value 0 of the indication field and an lth value located in the SRS bandwidth configuration table may be set₃Corresponding to the bandwidth indication information, setting the value 1 of the indication field and the L-th bandwidth allocation table in the SRS bandwidth allocation table₄The bandwidth indication information of (2) corresponds to, a smaller value of the indication field may also be set to correspond to the bandwidth indication information with a smaller number of rows, which is not limited in this embodiment.

Based on detecting module 621, the ue detects whether the base station transmits an indication field corresponding to subband B, and obtains the subband bandwidth W of subband B based on first obtaining unit 6221 when the ue receives the indication field corresponding to subband B₂Value 16) based on which the first lookup unit 6222 can determine the subband bandwidth W₂The matched SRS bandwidth configuration information is positioned at the L-th of the SRS bandwidth configuration table₃Row and Lth₄Line, subband bandwidth W₂The number of the matched SRS bandwidth configuration information is 2, thereby being based on the sub-band bandwidth W₂The SRS bandwidth configuration information corresponding thereto cannot be uniquely determined, and based on the first determining unit 6223, the user equipment determines one of the 2 SRS bandwidth configuration information as the target SRS bandwidth configuration information according to the value of the indication field. Further, in this embodiment, the first determining module 622 may further include a module for obtaining the value of the indication field and the SRS band matched with the value of the indication fieldA third acquisition unit 6224 of the correspondence relationship between the wide configuration information.

In this embodiment, for the subband C, the value of the number M of the SRS bandwidth configuration information matched to the subband C is 4, so that the bit number N of the indication field may be determined to be 2. Further, in this embodiment, for example, the value 00 of the indication field and the lth located in the SRS bandwidth configuration table may be preset₃₅Corresponding to the bandwidth indication information, setting the value 01 of the indication field and the L-th bandwidth allocation table in the SRS bandwidth allocation table₃₆Corresponding to the bandwidth indication information, the value 10 of the setting indication field and the L-th value in the SRS bandwidth configuration table₃₇Corresponding to the bandwidth indication information, the value 11 of the setting indication field and the L-th bandwidth allocation table₃₈The bandwidth indication information of (2) corresponds to, a smaller value of the indication field may also be set to correspond to the bandwidth indication information with a smaller number of rows, which is not limited in this embodiment.

Based on detecting module 621, the ue detects whether the base station transmits an indication field corresponding to subband C, and obtains the subband bandwidth W of subband C based on first obtaining unit 6221 when the detection result is that the indication field corresponding to subband C is received₃Value 144) based on the first lookup unit 6222Sum subband bandwidth W₃The matched SRS bandwidth configuration information is positioned at the L-th of the SRS bandwidth configuration table₃₅Line, L₃₆Line, L₃₇Row and Lth₃₈Line, subband bandwidth W₃The number of the matched SRS bandwidth configuration information is 4, thereby being based on the sub-band bandwidth W₃The SRS bandwidth configuration information corresponding thereto cannot be uniquely determined, and based on the first determining unit 6223, the user equipment determines one of the 4 SRS bandwidth configuration information as the target SRS bandwidth configuration information according to the value of the indication field.

After determining the target SRS bandwidth configuration information, the configuration module 624 may be further based on B_SRSAnd n_RRCTo determine the starting frequency-domain location of the SRS on the corresponding subband and the number of PRBs.

In this embodiment, based on the second transmitting module 625, the user equipment respectively transmits the SRS after configuration on several subbands, the base station may specify a subband with better quality as a target subband according to the SRS transmitted on the several subbands, and then the third transmitting module 612 may transmit the second configuration information to the user equipment to specify the target subband for transmitting the several SRS, and further, the base station may specify that the SRS transmission may occupy the subband bandwidth of the target subband.

In this embodiment, the first obtaining unit 6221 and the second obtaining unit 6231 may obtain the subband bandwidth of the subband used for transmitting the SRS through a higher layer parameter configuration or a predefined manner, where the predefined manner may be, for example, the subband bandwidth associated with the value of the SCS, or the user equipment may obtain the subband bandwidth of the subband used for transmitting the SRS by following the definition about the subband in the existing CSI feedback, which is not limited in this embodiment.

In this embodiment, the first sending module 611 may specifically send the first configuration information to the ue through a higher layer signaling (e.g., RRC), DCI, or MAC-CE, that is, the first configuration information may be included in the higher layer signaling (e.g., RRC), DCI, or MAC-CE.

In the present embodiment, the user equipment is designated according to the base stationThe subband bandwidths of the subbands used for transmitting the SRS are used for determining a plurality of SRS bandwidth configuration information sets matched with the SRS bandwidth configuration table in the SRS bandwidth configuration table, and then the base station can set an indication field according to the number of the matched SRS bandwidth configuration information to indicate the SRS bandwidth configuration information used for configuring the SRS, and on the premise that the subband bandwidths are known, the number of the SRS bandwidth configuration information sets is larger than that of the SRS bandwidth configuration table requiring 6 bits of C_SRSIn this embodiment, the bandwidth configuration of the SRS can be indicated based on the indication field that requires at most 2 bits, that is, the base station and the user equipment may determine the SRS bandwidth configuration information based on a smaller number of bits.

Example 7

The present embodiment provides an electronic device, which may be represented in the form of a computing device (for example, may be a server device), and includes a memory, a processor, and a computer program stored in the memory and executable on the processor, where the processor executes the computer program to implement the bandwidth indication method in the partial bandwidth detection provided in any one of embodiments 1 to 3.

Fig. 7 shows a schematic diagram of a hardware structure of the present embodiment, and as shown in fig. 7, the electronic device 9 specifically includes:

at least one processor 91, at least one memory 92, and a bus 93 for connecting the various system components (including the processor 91 and the memory 92), wherein:

the bus 93 includes a data bus, an address bus, and a control bus.

Memory 92 includes volatile memory, such as Random Access Memory (RAM)921 and/or cache memory 922, and can further include Read Only Memory (ROM) 923.

Memory 92 also includes a program/utility 925 having a set (at least one) of program modules 924, such program modules 924 including, but not limited to: an operating system, one or more application programs, other program modules, and program data, each of which, or some combination thereof, may comprise an implementation of a network environment.

The processor 91 executes a computer program stored in the memory 92 to execute various functional applications and data processing, such as a bandwidth indication method in partial bandwidth detection provided in any of the embodiments 1-3 of the present invention.

The electronic device 9 may further communicate with one or more external devices 94 (e.g., a keyboard, a pointing device, etc.). Such communication may be through an input/output (I/O) interface 95. Also, the electronic device 9 may communicate with one or more networks (e.g., a Local Area Network (LAN), a Wide Area Network (WAN), and/or a public network, such as the Internet) via the network adapter 96. The network adapter 96 communicates with the other modules of the electronic device 9 via the bus 93. It should be understood that although not shown in the figures, other hardware and/or software modules may be used in conjunction with the electronic device 9, including but not limited to: microcode, device drivers, redundant processors, external disk drive arrays, RAID (disk array) systems, tape drives, and data backup storage systems, etc.

It should be noted that although in the above detailed description several units/modules or sub-units/modules of the electronic device are mentioned, such a division is merely exemplary and not mandatory. Indeed, the features and functionality of two or more of the units/modules described above may be embodied in one unit/module, according to embodiments of the application. Conversely, the features and functions of one unit/module described above may be further divided into embodiments by a plurality of units/modules.

Example 8

The present embodiment provides a computer-readable storage medium, on which a computer program is stored, which when executed by a processor implements the steps of the bandwidth indication method in partial bandwidth detection provided in any of embodiments 1-3.

More specific examples, among others, that the readable storage medium may employ may include, but are not limited to: a portable disk, a hard disk, random access memory, read only memory, erasable programmable read only memory, optical storage device, magnetic storage device, or any suitable combination of the foregoing.

In a possible implementation manner, the present invention can also be implemented in a form of a program product, which includes program code for causing a terminal device to execute steps of implementing the bandwidth indication method in the partial bandwidth detection described in any one of embodiments 1 to 3 when the program product is run on the terminal device.

Where program code for carrying out the invention is written in any combination of one or more programming languages, the program code may be executed entirely on the user device, partly on the user device, as a stand-alone software package, partly on the user device and partly on a remote device or entirely on the remote device.

Example 9

The present embodiment provides a user equipment, wherein the user equipment includes the bandwidth indication system in the partial bandwidth detection provided in embodiment 4. In this embodiment, on the premise that the subband bandwidth is known, the present embodiment may indicate the target SRS bandwidth configuration information for configuring the SRS based on an indication field that requires at most 2 bits, that is, the user equipment may determine the target SRS bandwidth configuration information for configuring the SRS based on a smaller number of bits.

Example 10

The present embodiment provides a base station, wherein the base station includes the bandwidth indication system in partial bandwidth detection provided in embodiment 5. In this embodiment, under the premise that the sub-band bandwidth is known, compared with C requiring 6 bits_SRSIn this embodiment, the bandwidth configuration of the SRS can be indicated based on the indication field that requires at most 2 bits, that is, the base station may indicate the SRS bandwidth configuration information based on a smaller number of bits.

While specific embodiments of the invention have been described above, it will be appreciated by those skilled in the art that this is by way of example only, and that the scope of the invention is defined by the appended claims. Various changes and modifications to these embodiments may be made by those skilled in the art without departing from the spirit and scope of the invention, and these changes and modifications are within the scope of the invention.

Claims

1. A bandwidth indication method in partial bandwidth detection is applied to user equipment, and the bandwidth indication method comprises the following steps:

2. The method for bandwidth indication during partial bandwidth sounding according to claim 1, wherein before the step of determining one of the SRS bandwidth configuration information as a target SRS bandwidth configuration information according to the indication field, the method further comprises:

and/or the presence of a gas in the gas,

in the step of detecting whether an indication field is received:

the indication field is included in higher layer signaling or DCI or MAC-CE.

3. A bandwidth indication method in partial bandwidth detection is characterized in that the bandwidth indication method is applied to a base station, and the bandwidth indication method comprises the following steps:

4. The method of claim 3, wherein the configuration information comprises an indication field for indicating one of the SRS bandwidth configuration information, and a value of the indication field is taken asUsing binary system, wherein the bit number N ═ ceil (log) of the indication field₂M), wherein M represents the number of matched SRS bandwidth configuration information;

and/or the presence of a gas in the gas,

5. A bandwidth indicating method in partial bandwidth detection is characterized by comprising the following steps:

the base station sends first configuration information to the user equipment;

6. The method of bandwidth indication in fractional bandwidth sounding of claim 5, wherein the first configuration information is further used to specify a number of subbands used for transmitting SRS;

7. A bandwidth indicating system in partial bandwidth detection is applied to user equipment, and the bandwidth indicating system comprises a detection module, a first determination module and a configuration module, wherein:

if yes, calling the first determining module;

the first determining module includes:

8. The bandwidth indication system at partial bandwidth probing according to claim 7 wherein said first determining module further comprises:

and/or the presence of a gas in the gas,

the indication field is included in higher layer signaling or DCI or MAC-CE.

9. A bandwidth indicating system for partial bandwidth detection, the bandwidth indicating system being applied to a base station, the bandwidth indicating system comprising:

10. The bandwidth indication system of claim 9, wherein the configuration information includes an indication field for indicating one of the SRS bandwidth configuration information, and a value of the indication field is binary, wherein a bit number N-ceil (log) of the indication field is equal to₂M), wherein M represents the number of matched SRS bandwidth configuration information;

and/or the presence of a gas in the gas,

11. A bandwidth indicating system in partial bandwidth detection is characterized by comprising a base station side bandwidth indicating system and a user equipment side bandwidth indicating system; wherein:

the base station side bandwidth indicating system comprises:

if yes, calling the first determining module;

the first determining module includes:

12. The bandwidth indication system in fractional bandwidth detection according to claim 11, wherein the first configuration information is further used to specify a number of subbands used for transmitting SRS;

the user equipment side bandwidth indication system further comprises:

the base station side bandwidth indicating system further comprises:

13. An electronic device comprising a memory, a processor and a computer program stored on the memory and executable on the processor, wherein the processor implements the method for indicating bandwidth during partial bandwidth probing according to claim 1 or 2, or implements the method for indicating bandwidth during partial bandwidth probing according to claim 3 or 4, or implements the method for indicating bandwidth during partial bandwidth probing according to claim 5 or 6 when executing the computer program.

14. 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 method for bandwidth indication in partial bandwidth detection according to claim 1 or 2, or the steps of the method for bandwidth indication in partial bandwidth detection according to claim 3 or 4, or the steps of the method for bandwidth indication in partial bandwidth detection according to claim 5 or 6.

15. A user equipment comprising a bandwidth indication system in partial bandwidth probing according to claim 7 or 8.

16. A base station comprising a bandwidth indication system in partial bandwidth detection according to claim 9 or 10.