WO2017133445A1

WO2017133445A1 - Method and device for transmitting uplink control information

Info

Publication number: WO2017133445A1
Application number: PCT/CN2017/071429
Authority: WO
Inventors: 司倩倩; 高雪娟; 潘学明; 王加庆
Original assignee: 电信科学技术研究院
Priority date: 2016-02-02
Filing date: 2017-01-17
Publication date: 2017-08-10
Also published as: CN107026723A; CN107026723B

Abstract

The present invention relates to the technical field of wireless communications, and especially relates to a method and device for transmitting uplink control information, so as to solve the problem existing in the art that if a terminal transmits an uplink control information on an unlicensed carrier currently, it cannot be ensured that the terminal can access a channel at any time, which may cause the fact that the uplink control information cannot be correctly transmitted in time. In the embodiments of the present invention, after LBT detection on a PUCCH transmission carrier has failed, a terminal can switch to other unlicensed carriers or licensed carriers on which LBT detection is successful, to transmit uplink control information, thereby avoiding the situation that uplink control information cannot be correctly transmitted in time due to not occupying a channel.

Description

Method and device for transmitting uplink control information

This application claims the priority of the Chinese Patent Application, filed on Feb. 2, 2016, filed on Jan. 2,,,,,,,,,,,,,,,,,,,,,,,,, In this application.

Technical field

The present invention relates to the field of wireless communication technologies, and in particular, to a method and device for transmitting uplink control information.

Background technique

In order to support the deployment of LTE (Long Term Evolution) systems on unlicensed spectrum resources, a method of authorizing LAA (Licensed Assisted Access) is currently defined. That is, when the terminal uses an unlicensed carrier, it must first access an authorized primary carrier, and the unlicensed carrier can only serve as a secondary carrier.

The unlicensed spectrum does not have a specific application system, and can be shared by various wireless communication systems such as Bluetooth, WiFi, etc., and the shared unlicensed spectrum resources are used by multiple systems by preempting resources. In order to ensure the transmission performance of the LTE terminal and to better use the unlicensed frequency band, an LBT (Listen Before Talk) mechanism is required before transmission on the unlicensed frequency band. The LBT process is a CCA (clear channel assessment) performed by the device before using the channel for transmission. It is determined by energy detection whether other signals exist on the channel to determine whether the channel is occupied or idle. Idle for data transfer.

Because the unlicensed spectrum resources are abundant, the terminal may receive data on many unlicensed carriers at the same time. If only the uplink control channel is supported on the authorized carrier, the uplink control channel overhead on the authorized carrier is too large, so it needs to be considered. The uplink control channel is transmitted on the unlicensed carrier. However, the resources on the unlicensed carrier are used by multiple systems. The terminal must first enter the LBT before the uplink transmission. The terminal cannot access the channel at any time. If the terminal does not preempt the transmission of the uplink control channel. On the channel, the uplink control information cannot be transmitted correctly in time.

In summary, if the terminal transmits the uplink control channel on the unlicensed carrier, the terminal cannot access the channel at any time, and the uplink control information cannot be correctly transmitted in time.

Summary of the invention

The present invention provides a method and a device for transmitting uplink control information, which are used to solve the problem that the current terminal existing in the prior art can transmit an uplink control channel on an unlicensed carrier, and cannot ensure that the terminal can access the channel at any time. This may cause the uplink control information to be incorrectly transmitted in time.

A method for transmitting uplink control information provided by an embodiment of the present invention includes:

The terminal performs LBT detection on the PUCCH transmission carrier, where the PUCCH transmission carrier is an unlicensed carrier;

If the LBT detection fails, the terminal determines a PUCCH actual transmission carrier, where the PUCCH actual transmission carrier is an authorized carrier or an unlicensed carrier that is successfully detected by the LBT;

The terminal transmits uplink control information by using a PUCCH actual transmission carrier.

Optionally, after performing the LBT detection on the PUCCH transmission carrier, the terminal further includes:

If the LBT detection is successful, the terminal uses the PUCCH transmission carrier as a PUCCH actual transmission carrier.

Optionally, when the PUCCH actual transmission carrier is an unlicensed carrier that is successfully detected by the LBT, the PUCCH actual transmission carrier is a carrier that meets a predetermined rule selected from the group of switching carriers, where the switching carrier group includes The PUCCH transmits a carrier and at least one other unlicensed carrier.

Optionally, the predetermined rule is one of the following rules:

The carrier number of the unlicensed carrier that is successfully detected by the LBT is the smallest;

The highest priority among the unlicensed carriers that the LBT detects successfully;

Random selection of unlicensed carriers for successful LBT detection.

Optionally, the terminal determines, by the terminal, the actual transmission carrier of the PUCCH, including:

If there is no unlicensed carrier in the switching carrier group that is successfully detected by the LBT, and the switching carrier group includes the authorized carrier, and the PUCCH is currently switched to the authorized carrier, the terminal uses the authorized carrier as the PUCCH actual transmission carrier.

Optionally, the terminal determines, by using the following manner, whether the PUCCH is currently switched to the authorized carrier:

The terminal determines whether the PUCCH is currently switched to the authorized carrier by using the indication information included in the high layer signaling or the physical layer signaling.

Optionally, the terminal transmits uplink control information by using a PUCCH actual transmission carrier, including:

If the actual transmission carrier of the PUCCH is an unlicensed carrier that is successfully detected by the DTX, the terminal transmits the uplink control information by using the PUCCH resource on the actual transmission carrier of the PUCCH;

If the actual transmission carrier of the PUCCH is an authorized carrier, the terminal transmits uplink control information by using a PUCCH resource for transmitting uplink control information of the unlicensed carrier handover on the actual transmission carrier of the PUCCH; wherein, the authorized carrier is used. The PUCCH resource for transmitting the unlicensed carrier and the handover PUCCH resource and the uplink control information for transmitting the authorized carrier are the same or different.

Optionally, the terminal determines, by using part or all of the following manners, all PUCCH resources on the PUCCH actual transmission carrier:

Determining, by the downlink control indication information, all PUCCH resources on the actual transmission carrier of the PUCCH;

Determining, by the high layer signaling configuration information, all PUCCH resources on the actual transmission carrier of the PUCCH;

The terminal determines, by using predefined configuration information, all PUCCH resources on the PUCCH actual transmission carrier.

If the terminal is scheduled to transmit uplink data on the PUCCH actual transmission carrier, and the terminal supports PUCCH and PUSCH transmission simultaneously, the terminal transmits uplink control information by using a PUCCH on a PUCCH actual transmission carrier; or

If the terminal is scheduled to transmit uplink data on the PUCCH actual transmission carrier, and the terminal does not support PUCCH and PUSCH simultaneous transmission, the terminal transmits uplink control information by using the PUSCH on the PUCCH actual transmission carrier.

Optionally, the uplink control information that is transmitted by the terminal through the PUCCH actual transmission carrier includes uplink control information of all carriers in the carrier group to which the PUCCH actual transmission carrier belongs.

Another method for transmitting uplink control information provided by the embodiment of the present invention includes:

The network side device performs DTX detection on the PUCCH transmission carrier, where the PUCCH transmission carrier is an unlicensed carrier;

If the DTX detection fails, the network side device determines a PUCCH actual transmission carrier, where the PUCCH actual transmission carrier is an authorized carrier or an unlicensed carrier successfully detected by DTX;

The network side device actually transmits the uplink control information of the carrier through the PUCCH.

Optionally, before the performing, by the network side device, the DTX detection on the PUCCH transmission carrier, the method further includes:

The network side device configures a PUCCH transmission carrier for the terminal.

Optionally, after performing the DTX detection on the PUCCH transmission carrier, the network side device further includes:

If the DTX detection is successful, the network side device uses the PUCCH transmission carrier as the PUCCH actual transmission carrier.

Optionally, the network side device determines the PUCCH actual transmission carrier, including:

If the DTX detection fails, the network side device performs DTX detection on each of the other unlicensed carriers except the PUCCH transmission carrier in the handover carrier group;

The network side device uses the unlicensed carrier that is successfully detected by the DTX as the actual transmission carrier of the PUCCH;

The switching carrier group includes a PUCCH transmission carrier and at least one other unlicensed carrier.

Optionally, the network side device determines the actual transmission carrier of the PUCCH, and further includes:

If the switching carrier group does not have an unlicensed carrier that is successfully detected by the DTX, and the switching carrier group includes the authorized carrier, and the terminal currently supports the PUCCH handover to the authorized carrier, the network side device actually transmits the authorized carrier as the PUCCH. Carrier.

Optionally, the method further includes:

The network side device indicates, by using high layer signaling or physical layer signaling, whether the terminal currently supports PUCCH handover to grant Weight carrier.

The network side device configures a switching carrier group for the terminal.

Optionally, the network side device actually transmits the uplink control information of the carrier receiving terminal by using the PUCCH, including:

If the PUCCH actual transmission carrier is an unlicensed carrier that is successfully detected by the DTX, the network side device reserves, by using the unlicensed carrier in the handover carrier group, a PUCCH resource for transmitting uplink control information, and the receiving terminal Uplink control information;

If the PUCCH actual transmission carrier is an authorized carrier, the network side device reserves, by using the authorized carrier, a PUCCH resource for transmitting the uplink control information of the unlicensed carrier handover for the terminal, where the authorized carrier is used for transmitting the non-transmission The PUCCH resource of the licensed carrier and the switched PUCCH resource and the uplink control information for transmitting the authorized carrier are the same or different.

Optionally, the PUCCH resource is a non-predefined resource;

Before the network side device actually transmits the uplink control information of the carrier receiving terminal by using the PUCCH, the network side device further includes:

Transmitting, by the downlink control indication information, the PUCCH resource on the actual transmission carrier of the PUCCH by the terminal; and/or

The network side device notifies the terminal of the PUCCH resource on the PUCCH actual transmission carrier by using the high layer signaling configuration information.

A terminal for transmitting uplink control information is provided by the embodiment of the present invention, where the terminal includes:

a first detecting module, configured to perform LBT detection on a PUCCH transmission carrier, where the PUCCH transmission carrier is an unlicensed carrier;

a first processing module, configured to determine, if the LBT detection fails, the actual transmission carrier of the PUCCH, where the actual transmission carrier of the PUCCH is an authorized carrier or an unlicensed carrier that is successfully detected by the LBT;

And a transmission module, configured to transmit uplink control information by using a PUCCH actual transmission carrier.

Optionally, the first processing module is further configured to:

If the LBT detection is successful, the PUCCH transmission carrier is used as the PUCCH actual transmission carrier.

Optionally, the first processing module is specifically configured to:

If the LBT detection fails, the unlicensed carrier that satisfies the predetermined rule and the LBT detection succeeds is selected as the PUCCH actual transmission carrier from the switching carrier group;

Optionally, the predetermined rule is one of the following rules:

Random selection of unlicensed carriers for successful LBT detection.

Optionally, the first processing module is further configured to:

If there is no unlicensed carrier in the switching carrier group that is successfully detected by the LBT, and the switching carrier group includes the authorized carrier, and the PUCCH is currently switched to the authorized carrier, the authorized carrier is used as the PUCCH actual transmission carrier.

Optionally, the first processing module determines whether the PUCCH is currently switched to the authorized carrier by using the following manner:

Whether the PUCCH handover to the authorized carrier is currently supported is determined by the indication information included in the high layer signaling or the physical layer signaling.

Optionally, the transmission module is specifically configured to:

If the actual transmission carrier of the PUCCH is an unlicensed carrier that is successfully detected by the DTX, the uplink control information is transmitted by using the PUCCH resource on the actual transmission carrier of the PUCCH;

If the actual transmission carrier of the PUCCH is an authorized carrier, the uplink control information is transmitted by using the PUCCH resource of the uplink control information for transmitting the unlicensed carrier handover on the actual transmission carrier of the PUCCH; wherein the authorized carrier is used for transmitting the non-transmission The PUCCH resource of the licensed carrier and the switched PUCCH resource and the uplink control information for transmitting the authorized carrier are the same or different.

Optionally, the transmitting module determines all PUCCH resources on the PUCCH actual transmission carrier by using part or all of the following manners:

Determining, by using downlink control indication information, all PUCCH resources on the PUCCH actual transmission carrier;

Determining, by the high layer signaling configuration information, all PUCCH resources on the PUCCH actual transmission carrier;

All PUCCH resources on the PUCCH actual transmission carrier are determined by pre-defined configuration information.

Optionally, the transmitting module transmits uplink control information by using a PUCCH actual transmission carrier, specifically:

If the terminal is scheduled to transmit uplink data on the PUCCH actual transmission carrier, and the terminal supports PUCCH and PUSCH simultaneous transmission, transmitting uplink control information by using a PUCCH on a PUCCH actual transmission carrier; or

If the terminal is scheduled to transmit uplink data on the PUCCH actual transmission carrier, and does not support simultaneous transmission of the PUCCH and the PUSCH, the terminal transmits the uplink control information by using the PUSCH on the PUCCH actual transmission carrier.

Optionally, the uplink control information that is transmitted by using the PUCCH to actually transmit the carrier includes uplink control information of all carriers in the carrier group to which the actual transmission carrier of the PUCCH belongs.

A network side device for transmitting uplink control information is provided by the embodiment of the present invention, where the network side device includes:

a second detecting module, configured to perform DTX detection on a PUCCH transmission carrier, where the PUCCH transmission carrier is an unlicensed carrier;

a second processing module, configured to determine a PUCCH actual transmission carrier if the DTX detection fails, where the PUCCH actual transmission carrier is an authorized carrier or an unlicensed carrier successfully detected by DTX;

The receiving module is configured to actually transmit uplink control information of the carrier through the PUCCH.

Optionally, the second processing module is further configured to:

A PUCCH transmission carrier is configured for the terminal.

Optionally, the second processing module is further configured to:

If the DTX detection is successful, the PUCCH transmission carrier is used as the PUCCH actual transmission carrier.

Optionally, the second processing module is specifically configured to:

If the DTX detection fails, performing DTX detection on each unlicensed carrier except the PUCCH transmission carrier in the handover carrier group;

The unlicensed carrier that successfully detects the DTX is used as the actual transmission carrier of the PUCCH;

Optionally, the second processing module is further configured to:

If there is no unlicensed carrier in the switching carrier group, and the switching carrier group includes the authorized carrier, and the terminal currently supports the PUCCH handover to the authorized carrier, the authorized carrier is used as the PUCCH actual transmission carrier.

Optionally, the second processing module is further configured to:

Whether the terminal currently supports PUCCH handover to the authorized carrier is indicated by higher layer signaling or physical layer signaling.

Optionally, before the second detection module performs DTX detection on the PUCCH transmission carrier, the second processing module is further configured to:

A switching carrier group is configured for the terminal.

Optionally, the receiving module is specifically configured to:

If the actual transmission carrier of the PUCCH is an unlicensed carrier that is successfully detected by the DTX, the PUCCH resource used for transmitting the uplink control information is reserved for the terminal on the unlicensed carrier in the handover carrier group, and the uplink control information of the terminal is received;

And if the PUCCH actual transmission carrier is an authorized carrier, the PUCCH resource for transmitting the uplink control information for the unlicensed carrier handover is reserved for the terminal by using the authorized carrier, where the authorized carrier is used for transmitting the unlicensed carrier and is switched. The PUCCH resource is the same as or different from the PUCCH resource used to transmit the uplink control information of the licensed carrier.

Optionally, the PUCCH resource is a non-predefined resource;

The second processing module is further configured to:

Notifying, by the downlink control indication information, the PUCCH resource on the PUCCH actual transmission carrier of the terminal; and/or

Notifying, by the high layer signaling configuration information, the PUCCH resource on the PUCCH actual transmission carrier of the terminal.

Another terminal provided by the embodiment of the present application includes:

A processor for reading a program in the memory, performing the following process:

Performing LBT detection on a PUCCH transmission carrier, where the PUCCH transmission carrier is an unlicensed carrier; If the LBT detection fails, the actual transmission carrier of the PUCCH is determined, where the actual transmission carrier of the PUCCH is an authorized carrier or an unlicensed carrier that is successfully detected by the LBT; and the uplink control information is transmitted by using the transceiver to actually transmit the carrier through the PUCCH;

A transceiver for receiving and transmitting data under the control of a processor.

Another network side device provided by the embodiment of the present application includes:

Performing DTX detection on a PUCCH transmission carrier, where the PUCCH transmission carrier is an unlicensed carrier; if the DTX detection fails, determining a PUCCH actual transmission carrier, where the PUCCH actual transmission carrier is an authorized carrier or an unlicensed carrier successfully detected by DTX Transmitting the uplink control information of the carrier receiving terminal through the PUCCH by using the transceiver;

In the embodiment of the present invention, after performing the LBT detection failure on the PUCCH transmission carrier, the terminal may determine the actual transmission carrier of the PUCCH, and transmit the uplink control information by using the PUCCH actual transmission carrier, where the actual transmission carrier of the PUCCH is the authorized carrier or the LBT detection succeeds. Authorized carrier. In the embodiment of the present invention, the terminal may determine the actual transmission carrier of the PUCCH, where the actual transmission carrier of the PUCCH is an authorized carrier or an unlicensed carrier that is successfully detected by the LBT, so that the unlicensed carrier that is successfully detected by other LBTs or the uplink transmission of the authorized carrier may be switched. The information avoids the situation that the uplink control information cannot be correctly transmitted in time due to the preemption of the channel; further improving the system performance.

DRAWINGS

In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings used in the description of the embodiments will be briefly described below. It is obvious that the drawings in the following description are only some embodiments of the present invention, Those skilled in the art can also obtain other drawings based on these drawings without paying for inventive labor.

1 is a schematic structural diagram of a system for transmitting uplink control information according to an embodiment of the present invention;

2 is a schematic structural diagram of a first terminal according to an embodiment of the present invention;

3 is a schematic structural diagram of a first network side device according to an embodiment of the present invention;

4 is a schematic structural diagram of a second terminal according to an embodiment of the present invention;

FIG. 5 is a schematic structural diagram of a second network side device according to an embodiment of the present invention;

6 is a schematic flowchart of a method for transmitting uplink control information on a terminal side according to an embodiment of the present invention;

FIG. 7 is a schematic flowchart of a method for transmitting uplink control information on a network side according to an embodiment of the present invention.

detailed description

In the embodiment of the present invention, after the LBT detection fails on the PUCCH (Physical Uplink Control Channel) transmission carrier, the terminal may determine the actual transmission carrier of the PUCCH, and transmit the uplink control information by using the PUCCH actual transmission carrier, where the PUCCH is actually The transmission carrier is an authorized carrier or an unlicensed carrier that the LBT detects successfully. In the embodiment of the present invention, the terminal may determine the actual transmission carrier of the PUCCH, where the actual transmission carrier of the PUCCH is an authorized carrier or an unlicensed carrier that is successfully detected by the LBT, so that the unlicensed carrier that is successfully detected by other LBTs or the uplink transmission of the authorized carrier may be switched. The information avoids the situation that the uplink control information cannot be correctly transmitted in time due to the preemption of the channel; further improving the system.

The embodiment of the present invention can be applied to a scenario in which a terminal aggregates one authorized carrier and at least one unlicensed carrier.

The present invention will be further described in detail with reference to the accompanying drawings, in which . All other embodiments obtained by a person of ordinary skill in the art based on the embodiments of the present invention without creative efforts are within the scope of the present invention.

The embodiments of the present invention are further described in detail below with reference to the accompanying drawings.

As shown in FIG. 1, the system for transmitting uplink control information in the embodiment of the present invention includes: a terminal 10 and a network side device 20.

The terminal 10 is configured to perform LBT detection on a PUCCH transmission carrier, where the PUCCH transmission carrier is an unlicensed carrier; if the LBT detection fails, determine a PUCCH actual transmission carrier, where the PUCCH actual transmission carrier is an authorized carrier or an LBT detection. A successful unlicensed carrier; the uplink control information is transmitted through the actual transmission carrier of the PUCCH.

The network side device 20 is configured to perform DTX (Discontinuous Transmission) detection on the PUCCH transmission carrier, where the PUCCH transmission carrier is an unlicensed carrier; if the DTX detection fails, determine the PUCCH actual transmission carrier, where the The actual transmission carrier of the PUCCH is an unlicensed carrier whose authorized carrier or DTX is successfully detected; the uplink control information of the carrier receiving terminal is actually transmitted through the PUCCH.

In the embodiment of the present invention, after performing the LBT detection on the PUCCH transmission carrier, the terminal may use the authorized carrier or the unlicensed carrier that is successfully detected by the LBT to transmit the uplink control information as the actual transmission carrier of the PUCCH.

Correspondingly, after failing to perform DTX detection on the PUCCH transmission carrier, the network side device may receive the uplink control information as the PUCCH actual transmission carrier by using the authorized carrier or one other unlicensed carrier that is successfully detected by the DTX.

If the terminal successfully performs LBT detection on the PUCCH transmission carrier, the PUCCH transmission carrier is used as the PUCCH actual transmission carrier to transmit uplink control information;

Correspondingly, if the network side device successfully performs DTX detection on the PUCCH transmission carrier, the PUCCH transmission carrier is used as the PUCCH actual transmission carrier to receive uplink control information.

In the embodiment of the present invention, the switching carrier group may be configured for the terminal, or the switching carrier group may not be configured for the terminal.

Case 1: The switch carrier group is not configured for the terminal.

In an implementation, the network side device may configure a PUCCH transmission carrier for the terminal;

Correspondingly, the terminal determines the PUCCH transmission carrier according to the configuration of the network side device.

In this case, if the LBT detection fails, the terminal uses the authorized carrier as the actual transmission carrier of the PUCCH;

Correspondingly, if the DTX detection fails, the network side device uses the authorized carrier as the PUCCH actual transmission carrier.

Optionally, when the terminal transmits uplink control information by using a PUCCH actual transmission carrier, if the terminal is scheduled to transmit uplink data on the PUCCH actual transmission carrier, and the terminal supports PUCCH and PUSCH (Physical Uplink Shared Channel, The physical uplink shared channel is transmitted simultaneously, and the terminal transmits the uplink control information by using the PUCCH on the actual transmission carrier of the PUCCH; or

In an implementation, a carrier group may be divided for all carriers, where the carrier group is different from the switching carrier group. A carrier group including a primary carrier is referred to as a primary carrier group, a carrier group not including a primary carrier is referred to as a second carrier group, and an actual transmission carrier of the PUCCH belongs to a second carrier group, and uplink control information transmitted on the actual transmission carrier of the PUCCH may include Uplink control information of all carriers in the two carrier groups.

Specifically, the uplink control information that is transmitted by the terminal through the PUCCH actual transmission carrier includes uplink control information of all carriers in the second carrier group to which the PUCCH actual transmission carrier belongs;

For example, the second carrier group includes carrier 1, carrier 2, and carrier 3. If carrier 1 is a PUCCH actual transmission carrier, the uplink control information transmitted on carrier 1 may include part or all of carrier 1, carrier 2, and carrier 3. Uplink control information of the carrier.

When the PUCCH actual transmission carrier is the PUCCH transmission carrier and the PUCCH actual transmission carrier is the authorized carrier, the PUCCH resource indication manners on the PUCCH actual transmission carrier are different, and are respectively introduced below.

Manner 1: If the actual transmission carrier of the PUCCH is a PUCCH transmission carrier, the terminal transmits uplink control information by using a PUCCH resource on the actual transmission carrier of the PUCCH;

Correspondingly, the network side device reserves the PUCCH resource for transmitting the uplink control information for the terminal by using the unlicensed carrier in the switching carrier group, and receives the uplink control information of the terminal.

The PUCCH resource has a PUCCH resource, and the PUCCH resource is used to transmit uplink control information. The number of resources can be set as needed, such as one.

In the implementation, the PUCCH resource on the PUCCH transmission carrier can be set in a predefined manner, so that the network side device is not required to configure the terminal.

If you do not use the predefined settings, then:

The network side device may notify, by using the downlink control indication information, the PUCCH resource on the actual transmission carrier of the PUCCH by the terminal;

Correspondingly, the terminal determines, by using downlink control indication information, all PUCCH resources on the actual transmission carrier of the PUCCH. and / or

Correspondingly, the terminal determines, by using the high layer signaling configuration information, all PUCCH resources on the actual transmission carrier of the PUCCH.

Manner 2: If the actual transmission carrier of the PUCCH is an authorized carrier, the terminal transmits uplink control information by using a PUCCH resource for transmitting uplink control information of the unlicensed carrier handover on the actual transmission carrier of the PUCCH; The PUCCH resource for transmitting the unlicensed carrier on the carrier and the handover PUCCH resource and the uplink control information for transmitting the authorized carrier are the same or different.

Correspondingly, the network side device reserves, by using the authorized carrier, a PUCCH resource for transmitting, by the terminal, uplink control information for unlicensed carrier handover.

The PUCCH resource is available on the authorized carrier. The PUCCH resource may be of two types or one type. If there are two types, one is a PUCCH resource for transmitting uplink control information of an unlicensed carrier handover, and the other is a PUCCH resource for transmitting uplink control information of an authorized carrier;

If the PUCCH resource can transmit the uplink control information of the unlicensed carrier handover, the uplink control information of the authorized carrier can also be transmitted. Therefore, it is possible to transmit the two uplink control signals at the same time, so the PUCCH resource can be relatively large. Optionally, in order to avoid waste of resources, the base station may instruct other terminals to use the resource after confirming that the terminal preempts the channel.

If you do not use the predefined settings, then:

The network side device notifies, by using the high layer signaling configuration information, the PUCCH resource on the PUCCH actual transmission carrier of the terminal;

Case 2: Configure a switching carrier group for the terminal.

The handover carrier group herein includes a PUCCH transmission carrier and at least one other unlicensed carrier.

In an implementation, the network side device may configure a switching carrier group for the terminal;

Correspondingly, the terminal determines the switching carrier group according to the configuration of the network side device.

In this case, if the LBT detection fails, the terminal selects an unlicensed carrier that satisfies a predetermined rule from the switching carrier group and the LBT detection succeeds as the PUCCH actual transmission carrier.

Correspondingly, if the DTX detection fails, the network side device performs DTX detection on each of the other unlicensed carriers except the PUCCH transmission carrier in the handover carrier group; the unlicensed carrier that successfully detects the DTX is used as the PUCCH actual transmission carrier.

For case 2, it is assumed that there are N unlicensed carriers in the switched carrier group. If the DTX detection fails on the PUCCH transmission carrier, if the LBT detection succeeds on the M unlicensed carriers among the remaining N-1 unlicensed carriers, the terminal Selecting a PUCCH actual transmission carrier according to a predetermined rule, where M is greater than or equal to 1 and less than or equal to N-1;

Correspondingly, if the network side device fails to perform DTX detection on the PUCCH transmission carrier, DTX detection is performed on each of the remaining N-1 unlicensed carriers.

Optionally, the predetermined rule in the embodiment of the present invention is one of the following rules:

The carrier number of the unlicensed carrier that is successfully detected by the LBT is the smallest, for example, the smallest carrier number of the M unlicensed carriers is selected as the actual PUCCH carrier;

The highest priority among the unlicensed carriers that the LBT detects successfully, wherein the priority may be determined according to interference conditions on the carrier or other manners;

Random selection of unlicensed carriers for successful LBT detection.

Optionally, if the switch carrier group does not have an unlicensed carrier that is successfully detected by the LBT, and the switch carrier group includes the authorized carrier, and the PUCCH is currently switched to the authorized carrier, the terminal uses the authorized carrier as the actual PUCCH. Transmission carrier

Correspondingly, if there is no unlicensed carrier in the switching carrier group that is successfully detected by the DTX, and the switching carrier group includes the authorized carrier, and the terminal currently supports the PUCCH handover to the authorized carrier, the network side device uses the authorized carrier as The PUCCH actually transmits the carrier.

That is, if the above L unlicensed carriers fail to perform LBT

If the PUCCH switching carrier group does not include the authorized carrier or does not support the PUCCH handover to the authorized carrier, the terminal considers that the LBT fails and does not transmit the uplink control information;

Correspondingly, if the PUCCH switching carrier group does not include the authorized carrier or does not support the PUCCH handover to the authorized carrier, the network side device considers that the terminal does not transmit the uplink control channel, and does not need to receive the uplink control channel in the current subframe.

If the PUCCH handover carrier group includes the licensed carrier and supports the PUCCH handover to the authorized carrier, it is determined that the authorized carrier is the PUCCH actual transmission payload.

The embodiment of the present invention may further specify that only one authorized carrier is included in one of the switching carrier groups. Of course, more than one can.

In an implementation, the network side device indicates, by using the high layer signaling or the physical layer signaling, whether the terminal currently supports the PUCCH handover to the authorized carrier, for example, by using 1 bit in the downlink scheduling signaling;

Correspondingly, the terminal determines whether the PUCCH is currently switched to the authorized carrier by using the indication information included in the high layer signaling or the physical layer signaling.

When the PUCCH actual transmission carrier is the PUCCH transmission carrier and the PUCCH actual transmission carrier is the authorized carrier, the PUCCH resources on the PUCCH actual transmission carrier are different, and are respectively introduced below.

Manner 1: If the actual transmission carrier of the PUCCH is an unlicensed carrier that is successfully detected by the DTX, the terminal transmits the uplink control information by using the PUCCH resource on the actual transmission carrier of the PUCCH;

If you do not use the predefined settings, then:

The PUCCH resource is available on the authorized carrier. The PUCCH resource may be of two types or one type. If there are two types, one is a PUCCH resource for transmitting uplink control information for unlicensed carrier switching, and the other is a PUCCH resource for transmitting uplink control information of an authorized carrier;

If the PUCCH resource can transmit the uplink control information of the unlicensed carrier handover, and the uplink control information of the authorized carrier can also be transmitted, it is possible to transmit the two uplink control signals at the same time, so the PUCCH resource can be relatively large. Optionally, in order to avoid waste of resources, the base station may instruct other terminals to use the resource after confirming that the terminal preempts the channel.

Correspondingly, the base station can determine whether the uplink control signal transmitted by the unlicensed carrier is transmitted on the PUCCH resource, or the uplink control information of the authorized carrier is transmitted, or both are transmitted.

If you do not use the predefined settings, then:

The network side device in the embodiment of the present invention may be a base station (such as a macro base station, a home base station, etc.), and may also be other network side devices.

A terminal in the embodiment of the present invention may also be referred to as a UE (user equipment), such as a terminal that can connect to a network side device, such as a pad or a mobile phone.

The scheme of the present invention will be described in detail below by way of a few examples.

Example 1:

The terminal aggregates 10 carriers, where carrier 1 is an authorized carrier and carriers 2-10 are unlicensed carriers. Carriers 1 to 5 are carrier group A, carriers 6 to 10 are carrier group B, carrier 1 is a primary carrier in carrier group A, and carrier 6 is a primary carrier in carrier group B. The base station configures the carrier 6 as the PUCCH transmission carrier, and the terminal needs to perform uplink control information feedback for the carrier 6 and the carrier 10. The specific implementation process is described according to the following different situations:

Case 1: The terminal performs LBT detection on the carrier 6, and the LBT detection result on the carrier 6 is that the carrier is idle, and the PUCCH on the carrier 6 transmits the uplink control information of the carrier 6 and the carrier 10;

Correspondingly, the base station performs DTX detection on the carrier 6, and receives uplink control information after detecting the PUCCH transmission.

Case 2: The terminal performs LBT detection on the carrier 6, and the LBT detection result on the carrier 6 is that the carrier is busy, and the PUCCH on the carrier 1 transmits the uplink control information of the carrier 6 and the carrier 10;

Correspondingly, the base station first performs DTX detection on the carrier 6, does not detect the PUCCH transmission, and then performs DTX detection on the carrier 1, and receives the uplink control information after detecting the PUCCH transmission.

Case 3: The terminal does not support simultaneous transmission of PUCCH and PUSCH.

The terminal performs LBT detection on the carrier 6, the LBT detection result on the carrier 6 is that the carrier is busy, and the base station schedules uplink data transmission on the carrier 1, and the terminal controls the uplink control information of the carrier 6 and the carrier 10 on the carrier 1 ;

Correspondingly, the base station first performs DTX detection on the carrier 6, does not detect the PUCCH transmission, and then receives the uplink control information in the PUSCH on the carrier 1.

Example 2:

The terminal aggregates 10 carriers, where carrier 1 is an authorized carrier and carriers 2-10 are unlicensed carriers. Carriers 1 to 5 are carrier group A, carriers 6 to 10 are carrier group B, carrier 1 is a primary carrier in carrier group A, and carrier 6 is a primary carrier in carrier group B. The base station configures the carrier 6 as a PUCCH transmission carrier, and configures the carriers 6 to 10 as a handover carrier group. The terminal needs to perform uplink control information feedback for carrier 6 and carrier 10, and performs the following process:

Case 1: The terminal performs LBT detection on carriers 6-10, and the LBT detection result on carrier 6 is carrier idle, then PUCCH is transmitted on carrier 6.

Case 2: The terminal performs LBT detection on carriers 6 to 10. The LBT detection result on carrier 6 and carrier 8 is carrier busy, and the LBT detection result on carrier 7, carrier 9 and carrier 10 is carrier idle, and the terminal is based on carrier. Selecting a PUCCH transmission carrier, and selecting to transmit a PUCCH on the carrier 7 with successful LBT detection and the smallest carrier number;

Correspondingly, the base station first performs DTX detection on the carrier 6, does not detect the PUCCH transmission, and then performs DTX detection on the carriers 7-10 according to the carrier sequence, and receives the uplink control information after detecting the PUCCH transmission on the carrier 7.

Case 3: The terminal selects a PUCCH transmission carrier according to the scheduling information and the carrier sequence number. Since only the uplink control information needs to be transmitted for the carrier 6 and the carrier 10, the PUCCH is selected to be transmitted on the carrier 10 with the LBT detection success and the uplink control information feedback.

Correspondingly, the base station first performs DTX detection on the carrier 6, does not detect the PUCCH transmission, and then performs DTX detection on the carrier 10 on which the terminal needs to perform uplink control information feedback, and receives uplink control information after detecting the PUCCH transmission on the carrier 10.

Case 4: The terminal selects a PUCCH transmission carrier according to the interference information, and the terminal detects that the interference on the carrier 7 and the carrier 10 is large, and the interference on the carrier 9 is small, then the PUCCH is selected to be transmitted on the carrier 9;

Correspondingly, the base station first performs DTX detection on the carrier 6, does not detect the PUCCH transmission, and then performs DTX detection on the carriers 7-10 according to the carrier sequence, and receives the uplink control after detecting the PUCCH transmission on the carrier 9. Information.

Example 3:

The terminal aggregates 10 carriers, where carrier 1 is an authorized carrier and carriers 2-10 are unlicensed carriers. Carriers 1 to 5 are carrier group A, carriers 6 to 10 are carrier group B, carrier 1 is a primary carrier in carrier group A, and carrier 6 is a primary carrier in carrier group B. The base station configures the carrier 6 as a PUCCH transmission carrier, and configures the carriers 6 to 10 as a PUCCH switching carrier group. The terminal needs to perform uplink control information feedback for carrier 1 and carrier 2/6 and carrier 10, and performs the following process:

Case 1: The terminal feeds back the uplink control information of carrier 1 and carrier 2 on carrier 1, and performs LBT detection on carriers 6 to 10. The LBT detection result on carriers 6 to 10 is carrier busy, and the carrier is also transmitted on carrier 1. 6 and uplink control information of carrier 10. The uplink control information of carrier 1 and carrier 2 and the uplink control information of carrier 6 and carrier 10 use the same PUCCH.

Correspondingly, the base station first performs DTX detection on carriers 6-10, and does not detect PUCCH transmission, and then uses two length bits on carrier 1 to decode PUCCH, and the first length corresponds to only feedback carrier 1 and carrier 2 Uplink control information, the second length corresponds to the uplink control information of carrier 1 and carrier 2/6 and carrier 10, and if the base station successfully decodes using the first type, the terminal only feeds back uplink control of carrier 1 and carrier 2. The information, if the second length decoding is successful, indicates that the terminal simultaneously feeds back uplink control information of carrier 1 and carrier 2/6 and carrier 10.

Case 2: The terminal feeds back the uplink control information of carrier 1 and carrier 2 on carrier 1, and performs LBT detection on carriers 6 to 10. The LBT detection result on carriers 6 to 10 is carrier busy, and the carrier is also transmitted on carrier 1. 6 and uplink control information of carrier 10. The uplink control information of carrier 1 and carrier 2 and the uplink control information of carrier 6 and carrier 10 use different PUCCH resources.

Correspondingly, the base station first performs DTX detection on carriers 6-10, and does not detect PUCCH transmission, and then performs DTX detection on two PUCCH resources on carrier 1, the first PUCCH resource corresponding to carrier 1 and carrier 2. For the uplink control information, the second PUCCH resource corresponds to the uplink control information of the carrier 6 and the carrier 10. The base station receives the corresponding uplink control information after detecting the PUCCH transmission.

As shown in FIG. 2, the first terminal of the embodiment of the present invention includes:

The first detecting module 200 is configured to perform LBT detection on a PUCCH transmission carrier, where the PUCCH transmission carrier is an unlicensed carrier;

The first processing module 201 is configured to determine, if the LBT detection fails, the actual transmission carrier of the PUCCH, where the actual transmission carrier of the PUCCH is an authorized carrier or an unlicensed carrier that is successfully detected by the LBT;

Optionally, the first processing module 201 is further configured to:

If the LBT detection fails, the licensed carrier is used as the actual transmission carrier of the PUCCH.

Optionally, the first processing module 201 is specifically configured to:

Optionally, the predetermined rule is one of the following rules:

Random selection of unlicensed carriers for successful LBT detection.

Optionally, the first processing module 201 is specifically configured to:

Optionally, the first processing module 201 is specifically configured to determine, by using the following manner, whether the PUCCH is currently switched to the authorized carrier:

Optionally, the transmission module 202 is specifically configured to:

All PUCCH resources on the actual transmission carrier of the PUCCH are determined by some or all of the following ways:

Optionally, the transmission module 202 is specifically configured to:

If the terminal is scheduled to transmit uplink data on the PUCCH actual transmission carrier, and does not support PUCCH Simultaneously transmitting with the PUSCH, the terminal transmits uplink control information through the PUSCH on the actual transmission carrier of the PUCCH.

Optionally, the uplink control information that is transmitted by the transmission module 202 through the PUCCH actual transmission carrier includes uplink control information of all carriers in the carrier group to which the PUCCH actual transmission carrier belongs.

As shown in FIG. 3, the first network side device in the embodiment of the present invention includes:

a second detecting module 300, configured to perform DTX detection on a PUCCH transmission carrier, where the PUCCH transmission carrier is an unlicensed carrier;

The second processing module 301 is configured to determine, if the DTX detection fails, the actual transmission carrier of the PUCCH, where the actual transmission carrier of the PUCCH is an authorized carrier or an unlicensed carrier that is successfully detected by DTX;

The receiving module 302 is configured to actually transmit uplink control information of the carrier through the PUCCH.

Optionally, the second processing module 301 is further configured to:

A PUCCH transmission carrier is configured for the terminal.

Optionally, the second processing module 301 is further configured to:

Optionally, the second processing module 301 is specifically configured to:

If the DTX detection fails, the licensed carrier is used as the actual transmission carrier of the PUCCH.

Optionally, the second processing module 301 is specifically configured to:

If the DTX detection fails, performing DTX detection on each of the other unlicensed carriers except the PUCCH transmission carrier in the handover carrier group;

Optionally, the second processing module 301 is specifically configured to:

Optionally, the second processing module 301 is further configured to:

Optionally, the second processing module 301 is specifically configured to:

A switching carrier group is configured for the terminal.

Optionally, the receiving module 302 is specifically configured to:

Optionally, the PUCCH resource is a non-predefined resource;

The second processing module 301 is further configured to:

As shown in FIG. 4, a second terminal in the embodiment of the present invention includes:

The processor 401 is configured to read a program in the memory 404 and perform the following process:

Performing LBT detection on the PUCCH transmission carrier, where the PUCCH transmission carrier is an unlicensed carrier; if the LBT detection fails, determining the PUCCH actual transmission carrier, where the PUCCH actual transmission carrier is an authorized carrier or an LBT detection successful unlicensed carrier Transmitting, by the transceiver 402, the uplink control information is transmitted through the PUCCH actual transmission carrier.

The transceiver 402 is configured to receive and transmit data under the control of the processor 401.

Optionally, the processor 401 is further configured to:

Optionally, the processor 401 is specifically configured to:

Optionally, the predetermined rule is one of the following rules:

Random selection of unlicensed carriers for successful LBT detection.

Optionally, the processor 401 is specifically configured to:

Optionally, the processor 401 is specifically configured to determine, by using the following manner, whether the PUCCH is currently switched to the authorized carrier:

Determine whether the PUCCH switch to the authorization is currently supported by the indication information included in the high layer signaling or the physical layer signaling. Carrier.

Optionally, the processor 401 is specifically configured to:

Optionally, the uplink control information that is sent by the processor 401 by using the PUCCH to actually transmit the carrier includes uplink control information of all carriers in the carrier group to which the PUCCH actual transmission carrier belongs.

In FIG. 4, a bus architecture (represented by bus 400), which may include any number of interconnected buses and bridges, will include one or more processors and memory 404 represented by general purpose processor 401. The various circuits of the memory are linked together. The bus 400 can also link various other circuits, such as peripherals, voltage regulators, and power management circuits, as is known in the art and, therefore, will not be further described herein. Bus interface 403 provides an interface between bus 400 and transceiver 402. Transceiver 402 can be an element or a plurality of elements, such as a plurality of receivers and transmitters, providing means for communicating with various other devices on a transmission medium. For example, transceiver 402 receives external data from other devices. The transceiver 402 is configured to send the processed data of the processor 401 to other devices. Depending on the nature of the computing system, a user interface 405 can also be provided, such as a keypad, display, speaker, microphone, joystick.

The processor 401 is responsible for managing the bus 400 and the usual processing, running a general purpose operating system as described above. The memory 404 can be used to store data used by the processor 401 in performing operations.

Optionally, the processor 401 may be a CPU (Central Embedded Device), an ASIC (Application Specific Integrated Circuit), an FPGA (Field-Programmable Gate Array), or a CPLD (Complex Programmable Logic Device). , complex programmable logic devices).

As shown in FIG. 5, the second network side device of the embodiment of the present invention includes:

The processor 501 is configured to read a program in the memory 504 and perform the following process:

Performing DTX detection on a PUCCH transmission carrier, where the PUCCH transmission carrier is an unlicensed carrier; if the DTX detection fails, determining a PUCCH actual transmission carrier, where the PUCCH actual transmission carrier is an authorized carrier or an unlicensed carrier successfully detected by DTX Using the transceiver 502 to actually transmit the uplink control information of the carrier receiving terminal through the PUCCH.

The transceiver 502 is configured to receive and transmit data under the control of the processor 501.

Optionally, the processor 501 is further configured to:

A PUCCH transmission carrier is configured for the terminal.

Optionally, the processor 501 is further configured to:

Optionally, the processor 501 is specifically configured to:

Optionally, the processor 501 is further configured to:

Optionally, the processor 501 is specifically configured to:

A switching carrier group is configured for the terminal.

Optionally, the processor 501 is specifically configured to:

Optionally, the PUCCH resource is a non-predefined resource;

The processor 501 is further configured to:

In FIG. 5, a bus architecture (represented by bus 500), bus 500 can include any number of interconnected buses and bridges, and bus 500 will include one or more processors represented by processor 501 and memory represented by memory 504. The various circuits are linked together. The bus 500 can also link various other circuits, such as peripherals, voltage regulators, and power management circuits, as is known in the art, and therefore, will not be further described herein. Bus interface 503 provides an interface between bus 500 and transceiver 502. Transceiver 502 can be an element or a plurality of elements, such as multiple receivers and transmitters, providing means for communicating with various other devices on a transmission medium. Data processed by processor 501 is transmitted over wireless medium via antenna 505. Further, antenna 505 also receives the data and transmits the data to processor 501.

The processor 501 is responsible for managing the bus 500 and the usual processing, and can also provide various functions including timing, peripheral interfaces, voltage regulation, power management, and other control functions. The memory 504 can be used to store data used by the processor 501 when performing operations.

Optionally, the processor 501 can be a CPU, an ASIC, an FPGA, or a CPLD.

Based on the same inventive concept, the embodiment of the present invention further provides a method for transmitting uplink control information by a terminal, where the device corresponding to the method is a terminal in a system for transmitting uplink control information according to an embodiment of the present invention, and the method solves the problem. The principle is similar to the system, so the implementation of the method can be referred to the implementation of the system, and the repeated description will not be repeated.

As shown in FIG. 6, the method for transmitting uplink control information on the terminal side of the embodiment of the present invention includes:

Step 600: The terminal performs LBT detection on a PUCCH transmission carrier, where the PUCCH transmission carrier is an unlicensed carrier.

Step 601: If the LBT detection fails, the terminal determines the actual transmission carrier of the PUCCH, where the actual transmission carrier of the PUCCH is an authorized carrier or an unlicensed carrier with successful LBT detection;

Step 602: The terminal transmits uplink control information by using a PUCCH actual transmission carrier.

If the LBT detection fails, the terminal uses the licensed carrier as the actual transmission carrier of the PUCCH.

If the LBT detection fails, the terminal selects an unlicensed carrier that satisfies a predetermined rule from the switching carrier group and the LBT detection succeeds as the PUCCH actual transmission carrier;

Optionally, the predetermined rule is one of the following rules:

Random selection of unlicensed carriers for successful LBT detection.

If the terminal is scheduled to transmit uplink data on the PUCCH actual transmission carrier, and the terminal supports PUCCH and PUSCH transmission simultaneously, the terminal transmits the PUCCH on the carrier through the PUCCH actual transmission. Line control information; or

Based on the same inventive concept, the embodiment of the present invention further provides a method for transmitting uplink control information on the network side, where the device corresponding to the method is a network side device in a system for transmitting uplink control information according to an embodiment of the present invention, and the method The principle of solving the problem is similar to that of the system, so the implementation of the method can be referred to the implementation of the system, and the repeated description will not be repeated.

As shown in FIG. 7, the method for transmitting uplink control information on the network side of the embodiment of the present invention includes:

Step 700: The network side device performs DTX detection on a PUCCH transmission carrier, where the PUCCH transmission carrier is an unlicensed carrier.

Step 701: If the DTX detection fails, the network side device determines a PUCCH actual transmission carrier, where the PUCCH actual transmission carrier is an authorized carrier or an unlicensed carrier successfully detected by DTX;

Step 702: The network side device actually transmits uplink control information of the carrier through the PUCCH.

If the DTX detection fails, the network side device uses the authorized carrier as the PUCCH actual transmission carrier.

Optionally, the method further includes:

The network side device indicates, by using high layer signaling or physical layer signaling, whether the terminal currently supports PUCCH handover to the authorized carrier.

The network side device configures a switching carrier group for the terminal.

Optionally, the PUCCH resource is a non-predefined resource;

It can be seen from the above that after the LBT detection fails on the PUCCH transmission carrier, the terminal can determine the actual transmission carrier of the PUCCH, and transmit the uplink control information by using the PUCCH actual transmission carrier, where the actual transmission carrier of the PUCCH is an authorized carrier or The LBT detects a successful unlicensed carrier. In the embodiment of the present invention, the terminal may determine the actual transmission carrier of the PUCCH, where the actual transmission carrier of the PUCCH is an authorized carrier or an unlicensed carrier that is successfully detected by the LBT, so that the unlicensed carrier that is successfully detected by other LBTs or the uplink transmission of the authorized carrier may be switched. The information avoids the situation that the uplink control information cannot be correctly transmitted in time due to the preemption of the channel; further improving the system.

The present application has been described above with reference to block diagrams and/or flowchart illustrations of a method, apparatus (system) and/or computer program product according to embodiments of the present application. It will be understood that one block of the block diagrams and/or flowchart illustrations and combinations of blocks of the block diagrams and/or flowchart illustrations can be implemented by computer program instructions. These computer program instructions may be provided to a general purpose computer, a processor of a special purpose computer, and/or other programmable data processing apparatus to produce a machine such that instructions for execution via a computer processor and/or other programmable data processing apparatus are created for A method of implementing the functions/actions specified in the block diagrams and/or flowchart blocks.

Accordingly, the application can also be implemented in hardware and/or software (including firmware, resident software, microcode, etc.). Still further, the application can take the form of a computer program product on a computer usable or computer readable storage medium. A computer-usable or computer readable program code embodied in a medium for use by or in connection with an instruction execution system. In the context of the present application, a computer usable or computer readable medium can be any medium that can contain, store, communicate, communicate, or transport a program for use by an instruction execution system, apparatus or device, or in conjunction with an instruction execution system, Used by the device or device.

It is apparent that those skilled in the art can make various modifications and variations to the invention without departing from the spirit and scope of the invention. Thus, it is intended that the present invention cover the modifications and modifications of the invention

Claims

A method for transmitting uplink control information, the method comprising:

The terminal performs LBT detection on the physical uplink control channel PUCCH transmission carrier, where the PUCCH transmission carrier is an unlicensed carrier;

If the LBT detection fails, the terminal determines a PUCCH actual transmission carrier, where the PUCCH actual transmission carrier is an authorized carrier or an unlicensed carrier that is successfully detected by the LBT;

The terminal transmits uplink control information by using a PUCCH actual transmission carrier.
The method of claim 1, after the terminal performs LBT detection on the PUCCH transmission carrier, the method further includes:

If the LBT detection is successful, the terminal uses the PUCCH transmission carrier as a PUCCH actual transmission carrier.
The method according to claim 1, wherein when the PUCCH actual transmission carrier is an unlicensed carrier whose LBT detection succeeds, the PUCCH actual transmission carrier is a carrier that satisfies a predetermined rule selected from the switching carrier group, The switching carrier group includes a PUCCH transmission carrier and at least one other unlicensed carrier.
The method of claim 3 wherein said predetermined rule is one of the following rules:

The carrier number of the unlicensed carrier that is successfully detected by the LBT is the smallest;

The highest priority among the unlicensed carriers that the LBT detects successfully;

Random selection of unlicensed carriers for successful LBT detection.
The method of claim 3, wherein the determining, by the terminal, the actual transmission carrier of the PUCCH comprises:

If there is no unlicensed carrier in the switching carrier group that is successfully detected by the LBT, and the switching carrier group includes the authorized carrier, and the PUCCH is currently switched to the authorized carrier, the terminal uses the authorized carrier as the PUCCH actual transmission carrier.
The method according to claim 5, wherein the terminal determines whether the PUCCH is currently switched to the authorized carrier by:

The terminal determines whether the PUCCH is currently switched to the authorized carrier by using the indication information included in the high layer signaling or the physical layer signaling.
The method according to claim 1, wherein the terminal transmits uplink control information by using a PUCCH actual transmission carrier, including:

If the actual transmission carrier of the PUCCH is an unlicensed carrier that is successfully detected by the LBT, the terminal transmits uplink control information by using the PUCCH resource on the actual transmission carrier of the PUCCH;

If the actual transmission carrier of the PUCCH is an authorized carrier, the terminal transmits the uplink control information by using the PUCCH resource of the uplink control information for transmitting the unlicensed carrier handover on the actual transmission carrier of the PUCCH; The PUCCH resource for transmitting the unlicensed carrier on the authorized carrier and the handover PUCCH resource and the uplink control information for transmitting the authorized carrier are the same or different.
The method according to claim 7, wherein the terminal determines all PUCCH resources on the PUCCH actual transmission carrier by part or all of the following manners:

Determining, by the downlink control indication information, all PUCCH resources on the actual transmission carrier of the PUCCH;

Determining, by the high layer signaling configuration information, all PUCCH resources on the actual transmission carrier of the PUCCH;

The terminal determines, by using predefined configuration information, all PUCCH resources on the PUCCH actual transmission carrier.
The method according to any one of claims 1 to 8, wherein the terminal transmits uplink control information by using a PUCCH actual transmission carrier, including:

If the terminal is scheduled to transmit uplink data on the PUCCH actual transmission carrier, and the terminal supports the PUCCH and the physical uplink shared channel PUSCH to be simultaneously transmitted, the terminal transmits the uplink control through the PUCCH on the PUCCH actual transmission carrier. Information; or

If the terminal is scheduled to transmit uplink data on the PUCCH actual transmission carrier, and the terminal does not support PUCCH and PUSCH simultaneous transmission, the terminal transmits uplink control information by using the PUSCH on the PUCCH actual transmission carrier.
The method according to any one of claims 1 to 8, wherein the terminal actually transmits uplink control information of the carrier transmission through the PUCCH, and includes uplink control information of all carriers in the carrier group to which the PUCCH actual transmission carrier belongs.
A method for transmitting uplink control information, the method comprising:

The network side device performs discontinuous transmission DTX detection on the PUCCH transmission carrier, where the PUCCH transmission carrier is an unlicensed carrier;

If the DTX detection fails, the network side device determines a PUCCH actual transmission carrier, where the PUCCH actual transmission carrier is an authorized carrier or an unlicensed carrier successfully detected by DTX;

The network side device actually transmits the uplink control information of the carrier through the PUCCH.
The method of claim 11, wherein the network side device further comprises: before performing DTX detection on the PUCCH transmission carrier,

The network side device configures a PUCCH transmission carrier for the terminal.
The method according to claim 11, wherein after the network side device performs DTX detection on the PUCCH transmission carrier, the method further includes:

If the DTX detection is successful, the network side device actually transmits the PUCCH transmission carrier as a PUCCH. Carrier.
The method according to claim 11, wherein the network side device determines the PUCCH actual transmission carrier, including:

If the DTX detection fails, the network side device performs DTX detection on each unlicensed carrier except the PUCCH transmission carrier in the handover carrier group;

The network side device uses the unlicensed carrier that is successfully detected by the DTX as the actual transmission carrier of the PUCCH;

The switching carrier group includes a PUCCH transmission carrier and at least one other unlicensed carrier.
The method according to claim 14, wherein the network side device determines the actual transmission carrier of the PUCCH, and further includes:

If the switching carrier group does not have an unlicensed carrier that is successfully detected by the DTX, and the switching carrier group includes the authorized carrier, and the terminal currently supports the PUCCH handover to the authorized carrier, the network side device actually transmits the authorized carrier as the PUCCH. Carrier.
The method of claim 15 further comprising:

The network side device indicates, by using high layer signaling or physical layer signaling, whether the terminal currently supports PUCCH handover to the authorized carrier.
The method of claim 14, wherein the network side device further comprises: before performing DTX detection on the PUCCH transmission carrier,

The network side device configures a switching carrier group for the terminal.
The method according to claim 14, wherein the network side device actually transmits the uplink control information of the carrier receiving terminal by using the PUCCH, including:

If the actual transmission carrier of the PUCCH is an unlicensed carrier that is successfully detected by the LBT, the network side device reserves, by using the unlicensed carrier in the handover carrier group, a PUCCH resource for transmitting uplink control information, and the receiving terminal Uplink control information;

If the PUCCH actual transmission carrier is an authorized carrier, the network side device reserves, by using the authorized carrier, a PUCCH resource for transmitting the uplink control information of the unlicensed carrier handover for the terminal, where the authorized carrier is used for transmitting the non-transmission The PUCCH resource of the licensed carrier and the switched PUCCH resource and the uplink control information for transmitting the authorized carrier are the same or different.
The method of claim 18, wherein the PUCCH resource is a non-predefined resource;

Before the network side device actually transmits the uplink control information of the carrier receiving terminal by using the PUCCH, the network side device further includes:

Transmitting, by the downlink control indication information, the PUCCH resource on the actual transmission carrier of the PUCCH by the terminal; and/or

The network side device notifies the terminal of the PUCCH resource on the PUCCH actual transmission carrier by using the high layer signaling configuration information.
A terminal for transmitting uplink control information, where the terminal includes:

a first detecting module, configured to perform LBT detection on a PUCCH transmission carrier, where the PUCCH transmission carrier is an unlicensed carrier;

a first processing module, configured to determine, if the LBT detection fails, the actual transmission carrier of the PUCCH, where the actual transmission carrier of the PUCCH is an authorized carrier or an unlicensed carrier that is successfully detected by the LBT;

And a transmission module, configured to transmit uplink control information by using a PUCCH actual transmission carrier.
The terminal according to claim 20, wherein the first processing module is further configured to:

If the LBT detection is successful, the PUCCH transmission carrier is used as the PUCCH actual transmission carrier.
The terminal according to claim 20, wherein the first processing module is specifically configured to:

If the LBT detection fails, the unlicensed carrier that satisfies the predetermined rule and the LBT detection succeeds is selected as the PUCCH actual transmission carrier from the switching carrier group;

The switching carrier group includes a PUCCH transmission carrier and at least one other unlicensed carrier.
The terminal of claim 22, wherein the predetermined rule is one of the following rules:

The carrier number of the unlicensed carrier that is successfully detected by the LBT is the smallest;

The highest priority among the unlicensed carriers that the LBT detects successfully;

Random selection of unlicensed carriers for successful LBT detection.
The terminal according to claim 22, wherein the first processing module is further configured to:

If there is no unlicensed carrier in the switching carrier group that is successfully detected by the LBT, and the switching carrier group includes the authorized carrier, and the PUCCH is currently switched to the authorized carrier, the authorized carrier is used as the PUCCH actual transmission carrier.
The terminal according to claim 24, wherein the first processing module determines whether the PUCCH is currently switched to the authorized carrier by:

Whether the PUCCH handover to the authorized carrier is currently supported is determined by the indication information included in the high layer signaling or the physical layer signaling.
The terminal according to claim 20, wherein the transmission module is specifically configured to:

If the actual transmission carrier of the PUCCH is an unlicensed carrier that is successfully detected by the LBT, the uplink control information is transmitted by using the PUCCH resource on the actual transmission carrier of the PUCCH;

If the actual transmission carrier of the PUCCH is an authorized carrier, the uplink control information is transmitted by using the PUCCH resource of the uplink control information for transmitting the unlicensed carrier handover on the actual transmission carrier of the PUCCH; wherein the authorized carrier is used for transmitting the non-transmission The PUCCH resource of the licensed carrier and the switched PUCCH resource and the uplink control information for transmitting the authorized carrier are the same or different.
The terminal according to claim 26, wherein the transmission module determines all PUCCH resources on the PUCCH actual transmission carrier by part or all of the following manners:

Determining, by using downlink control indication information, all PUCCH resources on the PUCCH actual transmission carrier;

Determining, by the high layer signaling configuration information, all PUCCH resources on the PUCCH actual transmission carrier;

All PUCCH resources on the PUCCH actual transmission carrier are determined by pre-defined configuration information.
The terminal according to any one of claims 20 to 27, wherein the transmission module transmits uplink control information by using a PUCCH actual transmission carrier, which specifically includes:

If the terminal is scheduled to transmit uplink data on the PUCCH actual transmission carrier, and the terminal supports PUCCH and PUSCH simultaneous transmission, transmitting uplink control information by using a PUCCH on a PUCCH actual transmission carrier; or

If the terminal is scheduled to transmit uplink data on the PUCCH actual transmission carrier, and does not support simultaneous transmission of the PUCCH and the PUSCH, the terminal transmits the uplink control information by using the PUSCH on the PUCCH actual transmission carrier.
The terminal according to any one of claims 20 to 27, wherein the uplink control information that is actually transmitted by the carrier through the PUCCH includes uplink control information of all carriers in the carrier group to which the actual transmission carrier of the PUCCH belongs.
A network side device that transmits uplink control information, where the network side device includes:

a second detecting module, configured to perform DTX detection on a PUCCH transmission carrier, where the PUCCH transmission carrier is an unlicensed carrier;

a second processing module, configured to determine a PUCCH actual transmission carrier if the DTX detection fails, where the PUCCH actual transmission carrier is an authorized carrier or an unlicensed carrier successfully detected by DTX;

The receiving module is configured to actually transmit uplink control information of the carrier through the PUCCH.
The network side device according to claim 30, wherein the second processing module is further configured to:

A PUCCH transmission carrier is configured for the terminal.
The network side device according to claim 30, wherein the second processing module is further configured to:

If the DTX detection is successful, the PUCCH transmission carrier is used as the PUCCH actual transmission carrier.
The network side device according to claim 30, wherein the second processing module is specifically configured to:

If the DTX detection fails, performing DTX detection on each unlicensed carrier except the PUCCH transmission carrier in the handover carrier group;

The unlicensed carrier that successfully detects the DTX is used as the actual transmission carrier of the PUCCH;

The switching carrier group includes a PUCCH transmission carrier and at least one other unlicensed carrier.
The network side device according to claim 33, wherein the second processing module is further configured to:

If there is no unlicensed carrier in the switching carrier group, and the switching carrier group includes the authorized carrier, and the terminal currently supports the PUCCH handover to the authorized carrier, the authorized carrier is used as the PUCCH actual transmission carrier.
The network side device according to claim 34, wherein the second processing module is further configured to:

Whether the terminal currently supports PUCCH handover to the authorized carrier is indicated by higher layer signaling or physical layer signaling.
The network side device according to claim 33, wherein the second processing module is further configured to: before the second detecting module performs DTX detection on the PUCCH transmission carrier:

A switching carrier group is configured for the terminal.
The network side device according to claim 33, wherein the receiving module is specifically configured to:

If the actual transmission carrier of the PUCCH is an unlicensed carrier that is successfully detected by the DTX, the PUCCH resource used for transmitting the uplink control information is reserved for the terminal on the unlicensed carrier in the handover carrier group, and the uplink control information of the terminal is received;

And if the PUCCH actual transmission carrier is an authorized carrier, the PUCCH resource for transmitting the uplink control information for the unlicensed carrier handover is reserved for the terminal by using the authorized carrier, where the authorized carrier is used for transmitting the unlicensed carrier and is switched. The PUCCH resource is the same as or different from the PUCCH resource used to transmit the uplink control information of the licensed carrier.
The network side device according to claim 37, wherein the PUCCH resource is a non-predefined resource;

The second processing module is further configured to:

Notifying, by the downlink control indication information, the PUCCH resource on the PUCCH actual transmission carrier of the terminal; and/or

Notifying, by the high layer signaling configuration information, the PUCCH resource on the PUCCH actual transmission carrier of the terminal.
A terminal, comprising:

A processor for reading a program in the memory, performing the following process:

Performing LBT detection on the PUCCH transmission carrier, where the PUCCH transmission carrier is an unlicensed carrier; if the LBT detection fails, determining the PUCCH actual transmission carrier, where the PUCCH actual transmission carrier is an authorized carrier or an LBT detection successful unlicensed carrier Transmitting the uplink control information by using the transceiver to actually transmit the carrier through the PUCCH;

A transceiver for receiving and transmitting data under the control of a processor.
A network side device, comprising:

A processor for reading a program in the memory, performing the following process:

Performing DTX detection on a PUCCH transmission carrier, where the PUCCH transmission carrier is an unlicensed carrier; if the DTX detection fails, determining a PUCCH actual transmission carrier, where the PUCCH actual transmission carrier is an authorized carrier or an unlicensed carrier successfully detected by DTX Transmitting the uplink control information of the carrier receiving terminal through the PUCCH by using the transceiver;

A transceiver for receiving and transmitting data under the control of a processor.