CN107026723B

CN107026723B - Method and equipment for transmitting uplink control information

Info

Publication number: CN107026723B
Application number: CN201610073606.7A
Authority: CN
Inventors: 司倩倩; 高雪娟; 潘学明; 王加庆
Original assignee: China Academy of Telecommunications Technology CATT
Current assignee: China Academy of Telecommunications Technology CATT; Datang Mobile Communications Equipment Co Ltd
Priority date: 2016-02-02
Filing date: 2016-02-02
Publication date: 2020-10-09
Anticipated expiration: 2036-02-02
Also published as: CN107026723A; WO2017133445A1

Abstract

The invention relates to the technical field of wireless communication, in particular to a method and equipment for transmitting uplink control information, which are used for solving the problems that in the prior art, if a terminal transmits an uplink control channel on an unauthorized carrier, the terminal cannot be ensured to access the channel at any moment, and uplink control information cannot be transmitted correctly in time. After the LBT detection on the uplink control information transmission carrier is failed, the terminal can be switched to other unauthorized carriers or authorized carriers which are successful in LBT detection to transmit the uplink control information, and the condition that the uplink control information cannot be transmitted correctly in time due to the fact that a channel cannot be preempted is avoided.

Description

Method and equipment for transmitting uplink control information

Technical Field

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

Background

In order to support an LTE (Long Term Evolution) system to be deployed on an unlicensed spectrum resource for transmission, a Licensed Assisted Access (LAA) mode is currently defined. That is, when the terminal uses the unlicensed carrier, it must first access an licensed primary carrier, and the unlicensed carrier can only be used as a secondary carrier.

The unlicensed spectrum does not plan a specific application system, and can be shared by various wireless communication systems such as bluetooth and WiFi, and the various systems use shared unlicensed spectrum resources in a resource preemption manner. In order to ensure the transmission performance of the LTE terminal and better use the unlicensed frequency band, an LBT (listen before Talk) mechanism needs to be used before transmission on the unlicensed frequency band. The LBT process is a CCA (channel busy idle assessment) performed by the device before using the channel for transmission, and determines whether there are other signals on the channel by means of energy detection and the like to determine whether the channel is occupied or idle, and data transmission can be performed if the channel is idle.

Due to the abundant unlicensed spectrum resources, the terminal may receive data on a plurality of unlicensed carriers simultaneously, and if only supporting uplink control channel transmission on the licensed carrier is supported, the overhead of the uplink control channel on the licensed carrier may be too large, so that it is necessary to consider the uplink control channel transmission on the unlicensed carrier. However, resources on the unlicensed carrier are commonly used by multiple systems, the LBT must be first performed before the terminal performs uplink transmission, and it cannot be guaranteed that the terminal can access a channel at any time, and if the terminal does not preempt the channel at a time when the terminal needs to transmit an uplink control channel, uplink control information cannot be transmitted correctly in time.

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

Disclosure of Invention

The invention provides a method and equipment for transmitting uplink control information, which are used for solving the problems that in the prior art, if a terminal transmits an uplink control channel on an unauthorized carrier, the terminal cannot be ensured to access the channel at any time, and uplink control information cannot be transmitted correctly in time.

The method for transmitting the uplink control information provided by the embodiment of the invention comprises the following steps:

the method comprises the steps that a terminal carries out LBT detection on an uplink control information transmission carrier, wherein the uplink control information transmission carrier is an unauthorized carrier;

if LBT detection fails, the terminal determines an actual transmission carrier of the uplink control information, wherein the actual transmission carrier of the uplink control information is an authorized carrier or another unauthorized carrier for which LBT detection succeeds;

the terminal transmits uplink control information through the actual transmission carrier of the uplink control information;

the uplink control information is uplink control information which can be transmitted through a PUCCH format.

Optionally, after the terminal performs the LBT detection on the uplink control information transmission carrier, the method further includes:

and if the LBT detection is successful, the terminal takes the uplink control information transmission carrier as an actual uplink control information transmission carrier.

Optionally, the determining, by the terminal, the actual transmission carrier of the uplink control information includes:

and if the LBT detection fails, the terminal takes the authorized carrier as an actual transmission carrier of the uplink control information.

if the LBT detection fails, the terminal selects one other unauthorized carrier which meets the preset rule and is successfully detected by the LBT from the switching carrier group as an actual transmission carrier of the uplink control information;

wherein the switching carrier group comprises an uplink control information transmission carrier and at least one other unlicensed carrier.

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

the carrier sequence number of other unauthorized carriers which are successfully detected by LBT is the smallest;

the LBT detects the highest priority in other unauthorized carriers successfully;

and randomly selecting other unauthorized carriers with successful LBT detection.

and if no other unauthorized carrier with successful LBT detection exists in the switching carrier group, the switching carrier group comprises an authorized carrier, and the currently supported uplink control information is switched to the authorized carrier, the terminal takes the authorized carrier as the actual transmission carrier of the uplink control information.

Optionally, the terminal determines whether the uplink control information is currently supported to be switched to the authorized carrier by the following method:

and the terminal judges whether the uplink control information is currently supported to be switched to the authorized carrier or not through the indication information contained in the high-level signaling or the physical layer signaling.

Optionally, the terminal actually transmits the uplink control information through the uplink control information, where the method includes:

if the uplink control information actual transmission carrier is an uplink control information transmission carrier or other non-authorized carriers, the terminal transmits the uplink control information through the uplink control information resource on the uplink control information actual transmission carrier;

if the actual transmission carrier of the uplink control information is an authorized carrier, the terminal transmits the uplink control information through an uplink control information resource which is used for transmitting the uplink control information switched by the unauthorized carrier and is on the actual transmission carrier of the uplink control information; and the uplink control information resource used for transmitting the unauthorized carrier and switching the unauthorized carrier and the uplink control information resource used for transmitting the uplink control information of the authorized carrier are the same or different.

Optionally, the terminal determines all uplink control information resources on the actual transmission carrier of the uplink control information through part or all of the following manners:

the terminal determines all uplink control information resources on the actual transmission carrier of the uplink control information through the downlink control indication information;

the terminal determines all uplink control information resources on the actual transmission carrier of the uplink control information through high-level signaling configuration information;

and the terminal determines all uplink control information resources on the actual transmission carrier of the uplink control information according to the predefined configuration information.

if the terminal is scheduled to transmit uplink data on the PUCCH actual transmission carrier and supports simultaneous transmission of a PUCCH and a Physical Uplink Shared Channel (PUSCH), the terminal transmits uplink control information through the PUCCH on the PUCCH actual transmission carrier; or

And 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 uplink control information through the PUSCH on the PUCCH actual transmission carrier.

Optionally, the uplink control information actually transmitted by the terminal through the uplink control information includes uplink control information of all carriers in a carrier group to which the uplink control information actually transmitted carrier belongs.

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

the method comprises the steps that network side equipment carries out DTX detection on an uplink control information transmission carrier, wherein the uplink control information transmission carrier is an unauthorized carrier;

if DTX detection fails, the network side equipment determines that uplink control information actually transmits carriers, wherein the uplink control information actually transmits carriers which are authorized carriers or other unauthorized carriers with successful DTX detection;

the network side equipment actually transmits the uplink control information of the carrier receiving terminal through the uplink control information;

Optionally, before performing DTX detection on the uplink control information transmission carrier, the network side device further includes:

and the network side equipment configures an uplink control information transmission carrier for the terminal.

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

and if DTX detection is successful, the network side equipment takes the uplink control information transmission carrier as an actual uplink control information transmission carrier.

Optionally, the determining, by the network side device, the actual transmission carrier of the uplink control information includes:

and if DTX detection fails, the network side equipment takes the authorized carrier as an actual transmission carrier of the uplink control information.

if DTX detection fails, the network side equipment performs DTX detection on each other unauthorized carrier except the uplink control information transmission carrier in the switching carrier group;

the network side equipment takes other unauthorized carriers with successful DTX detection as actual transmission carriers of the uplink control information;

and if no other non-authorized carrier successfully detected by DTX exists in the switching carrier group, the switching carrier group comprises an authorized carrier, and the terminal currently supports the uplink control information to be switched to the authorized carrier, the network side equipment takes the authorized carrier as the actual transmission carrier of the uplink control information.

Optionally, the method further includes:

and the network side equipment indicates whether the terminal currently supports the uplink control information to be switched to the authorized carrier through high-level signaling or physical-layer signaling.

and the network side equipment configures a switching carrier group for the terminal.

Optionally, the actually transmitting, by the network side device, the uplink control information of the carrier receiving terminal through the uplink control information includes:

if the actual uplink control information transmission carrier is an uplink control information transmission carrier or other unauthorized carriers, the network side equipment reserves uplink control information resources for transmitting the uplink control information for the terminal through the unauthorized carrier in the switching carrier group, and receives the uplink control information of the terminal;

if the actual transmission carrier of the uplink control information is an authorized carrier, the network side equipment reserves an uplink control information resource for transmitting the uplink control information switched by the unauthorized carrier for the terminal through the authorized carrier; and the uplink control information resource used for transmitting the unauthorized carrier and switching the unauthorized carrier and the uplink control information resource used for transmitting the uplink control information of the authorized carrier are the same or different.

Optionally, the uplink control information resource is a non-predefined resource;

before the network side device actually transmits the uplink control information of the carrier receiving terminal through the uplink control information, the method further includes:

the terminal informs the terminal of the uplink control information resource on the actual transmission carrier of the uplink control information through downlink control indication information; and/or

And the network side equipment informs the terminal of the uplink control information resource on the actual transmission carrier of the uplink control information through high-level signaling configuration information.

The terminal for transmitting uplink control information provided by the embodiment of the invention comprises:

a first detection module, configured to perform LBT detection on an uplink control information transmission carrier, where the uplink control information transmission carrier is an unlicensed carrier;

a first processing module, configured to determine an actual uplink control information transmission carrier if LBT detection fails, where the actual uplink control information transmission carrier is an authorized carrier or another unauthorized carrier for which LBT detection succeeds;

the transmission module is used for transmitting the uplink control information through the actual transmission carrier wave of the uplink control information;

Optionally, the first processing module is further configured to:

and if the LBT detection is successful, taking the uplink control information transmission carrier as the actual uplink control information transmission carrier.

Optionally, the first processing module is further configured to:

and if the LBT detection fails, the authorized carrier is used as the actual transmission carrier of the uplink control information.

Optionally, the first processing module is specifically configured to:

if the LBT detection fails, selecting one other unauthorized carrier which meets a preset rule and is successfully detected by the LBT from the switching carrier group as an actual transmission carrier of the uplink control information;

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

Optionally, the first processing module is specifically configured to:

and if no other unauthorized carrier with successful LBT detection exists in the switching carrier group, the switching carrier group comprises an authorized carrier, and the currently supported uplink control information is switched to the authorized carrier, taking the authorized carrier as the actual transmission carrier of the uplink control information.

Optionally, the first processing module is specifically configured to determine whether the uplink control information is currently supported to be switched to the authorized carrier by the following manner:

and judging whether the current uplink control information is switched to the authorized carrier or not by the indication information contained in the high-level signaling or the physical layer signaling.

Optionally, the transmission module is specifically configured to:

if the uplink control information actual transmission carrier is an uplink control information transmission carrier or other non-authorized carriers, transmitting uplink control information through uplink control information resources on the uplink control information actual transmission carrier;

if the uplink control information actual transmission carrier is an authorized carrier, transmitting the uplink control information through an uplink control information resource which is used for transmitting the uplink control information switched by the unauthorized carrier and is arranged on the uplink control information actual transmission carrier; and the uplink control information resource used for transmitting the unauthorized carrier and switching the unauthorized carrier and the uplink control information resource used for transmitting the uplink control information of the authorized carrier are the same or different.

Optionally, the transmission module is specifically configured to,

determining all uplink control information resources on the actual transmission carrier of the uplink control information by part or all of the following modes:

determining all uplink control information resources on the actual transmission carrier of the uplink control information through downlink control indication information;

determining all uplink control information resources on the actual transmission carrier of the uplink control information through high-level signaling configuration information;

and determining all uplink control information resources on the actual transmission carrier of the uplink control information according to predefined configuration information.

Optionally, the transmission module is specifically configured to:

if the terminal is scheduled to transmit uplink data on the uplink control information actual transmission carrier and the terminal supports simultaneous transmission of uplink control information and a PUSCH, transmitting the uplink control information through the uplink control information on the uplink control information actual transmission carrier; or

And if the terminal is scheduled to transmit uplink data on the uplink control information actual transmission carrier and does not support the simultaneous transmission of the uplink control information and the PUSCH, transmitting the uplink control information through the PUSCH on the uplink control information actual transmission carrier.

Optionally, the uplink control information transmitted by the uplink control information actual transmission carrier includes uplink control information of all carriers in a carrier group to which the uplink control information actual transmission carrier belongs.

The network side device for transmitting uplink control information provided by the embodiment of the invention comprises:

a second detection module, configured to perform DTX detection on an uplink control information transmission carrier, where the uplink control information transmission carrier is an unlicensed carrier;

a second processing module, configured to determine, if DTX detection fails, an actual transmission carrier of uplink control information, where the actual transmission carrier of the uplink control information is an authorized carrier or another unauthorized carrier for which DTX detection succeeds;

a receiving module, configured to actually transmit uplink control information of a carrier receiving terminal through the uplink control information;

Optionally, the second processing module is further configured to:

and configuring uplink control information transmission carriers for the terminal.

Optionally, the second processing module is further configured to:

and if DTX detection is successful, taking the uplink control information transmission carrier as an actual uplink control information transmission carrier.

Optionally, the second processing module is specifically configured to:

and if the DTX detection fails, taking the authorized carrier as the actual transmission carrier of the uplink control information.

Optionally, the second processing module is specifically configured to:

if DTX detection fails, carrying out DTX detection on each other unauthorized carrier except the uplink control information transmission carrier in the switching carrier group;

taking other unauthorized carriers with successful DTX detection as actual transmission carriers of the uplink control information;

Optionally, the second processing module is specifically configured to:

and if no other non-authorized carrier successfully detected by DTX exists in the switching carrier group, the switching carrier group comprises an authorized carrier, and the terminal currently supports the uplink control information to be switched to the authorized carrier, taking the authorized carrier as the actual transmission carrier of the uplink control information.

Optionally, the second processing module is further configured to:

and indicating whether the terminal supports the uplink control information to be switched to the authorized carrier currently or not through high-level signaling or physical-level signaling.

Optionally, the second processing module is specifically configured to:

and configuring a switching carrier group for the terminal.

Optionally, the receiving module is specifically configured to:

if the actual uplink control information transmission carrier is an uplink control information transmission carrier or other unauthorized carriers, reserving uplink control information resources for transmitting the uplink control information for the terminal through the unauthorized carrier in the switching carrier group, and receiving the uplink control information of the terminal;

if the actual transmission carrier of the uplink control information is an authorized carrier, reserving uplink control information resources for transmitting the uplink control information switched by the unauthorized carrier for the terminal through the authorized carrier; and the uplink control information resource used for transmitting the unauthorized carrier and switching the unauthorized carrier and the uplink control information resource used for transmitting the uplink control information of the authorized carrier are the same or different.

the second processing module is further configured to:

informing the terminal of uplink control information resources on the actual transmission carrier of the uplink control information through downlink control indication information; and/or

And informing the terminal of the uplink control information resource on the actual transmission carrier of the uplink control information through high-level signaling configuration information.

After the LBT detection on the uplink control information transmission carrier is failed, the terminal of the embodiment of the invention can determine the actual transmission carrier of the uplink control information and transmit the uplink control information through the actual transmission carrier of the uplink control information, wherein the actual transmission carrier of the uplink control information is an authorized carrier or other non-authorized carriers for which the LBT detection is successful. The terminal of the embodiment of the invention can determine the actual transmission carrier of the uplink control information, wherein the actual transmission carrier of the uplink control information is an authorized carrier or another unauthorized carrier which is successfully detected by LBT, so that the terminal can switch to the unauthorized carrier or the authorized carrier which is successfully detected by other LBT to transmit the uplink control information, and the condition that the uplink control information cannot be timely and correctly transmitted due to the fact that a channel cannot be preempted is avoided; further improving system performance.

Drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without inventive exercise.

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

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

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

fig. 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;

fig. 6 is a flowchart illustrating a method for transmitting uplink control information at a terminal side according to an embodiment of the present invention;

fig. 7 is a flowchart illustrating a method for transmitting uplink control information by a network side according to an embodiment of the present invention.

Detailed Description

After the LBT detection on the uplink control information transmission carrier is failed, the terminal of the embodiment of the invention can determine the actual transmission carrier of the uplink control information and transmit the uplink control information through the actual transmission carrier of the uplink control information, wherein the actual transmission carrier of the uplink control information is an authorized carrier or other non-authorized carriers for which the LBT detection is successful. The terminal of the embodiment of the invention can determine the actual transmission carrier of the uplink control information, wherein the actual transmission carrier of the uplink control information is an authorized carrier or another unauthorized carrier which is successfully detected by LBT, so that the terminal can switch to the unauthorized carrier or the authorized carrier which is successfully detected by other LBT to transmit the uplink control information, and the condition that the uplink control information cannot be timely and correctly transmitted due to the fact that a channel cannot be preempted is avoided; the systematicness is further improved.

The embodiment of the invention can be applied to a scene that the terminal aggregates one authorized carrier and at least one unauthorized carrier.

In order to make the objects, technical solutions and advantages of the present invention clearer, the present invention will be described in further detail with reference to the accompanying drawings, and it is apparent that the described embodiments are only a part of the embodiments of the present invention, not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

The embodiments of the present invention will be described in further detail with reference to the drawings attached hereto.

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

A terminal 10, configured to perform LBT detection on an uplink control information transmission carrier, where the uplink control information transmission carrier is an unlicensed carrier; if LBT detection fails, determining an actual transmission carrier of the uplink control information, wherein the actual transmission carrier of the uplink control information is an authorized carrier or another unauthorized carrier for which LBT detection succeeds; transmitting uplink control information through an actual transmission carrier of the uplink control information; the uplink control information is uplink control information which can be transmitted through a PUCCH format.

A network side device 20, configured to perform DTX (discontinuous transmission) detection on an uplink control information transmission carrier, where the uplink control information transmission carrier is an unlicensed carrier; if DTX detection fails, determining an actual transmission carrier of uplink control information, wherein the actual transmission carrier of the uplink control information is an authorized carrier or other unauthorized carriers with successful DTX detection; and actually transmitting the uplink control information of the carrier receiving terminal through the uplink control information.

After the LBT detection of the uplink control information transmission carrier is failed, the terminal of the embodiment of the invention can take the authorized carrier or other non-authorized carrier which is successfully detected by the LBT as the actual transmission carrier of the uplink control information to transmit the uplink control information;

correspondingly, after the DTX detection on the uplink control information transmission carrier fails, the network side device may receive the uplink control information by using the authorized carrier or another unauthorized carrier whose DTX detection is successful as the actual uplink control information transmission carrier.

If the LBT detection of the uplink control information transmission carrier by the terminal is successful, the uplink control information transmission carrier is used as the actual uplink control information transmission carrier to transmit the uplink control information;

correspondingly, if the network side device succeeds in performing DTX detection on the uplink control information transmission carrier, the uplink control information transmission carrier is used as an actual uplink control information transmission carrier to receive the uplink control information.

The embodiments of the present invention may or may not configure a handover carrier group for a terminal, and will be described in detail below.

In case one, the terminal is not configured with a switch carrier group.

In implementation, the network side device may configure an uplink control information transmission carrier for the terminal;

correspondingly, the terminal determines the uplink control information transmission carrier according to the configuration of the network side equipment.

In this case, if the LBT detection fails, the terminal uses the grant carrier as the actual transmission carrier of the uplink control information;

correspondingly, if the DTX detection fails, the network side device uses the authorized carrier as the actual transmission carrier of the uplink control information.

Optionally, when the terminal actually transmits the Uplink control information through the Uplink control information actual transmission carrier, if the terminal is scheduled to transmit Uplink data on the PUCCH actual transmission carrier and the terminal supports simultaneous transmission of a PUCCH and a PUSCH (Physical Uplink Shared Channel), the terminal transmits the Uplink control information through the PUCCH on the PUCCH actual transmission carrier; or

In an implementation, a carrier group may be divided for all carriers, where the carrier group is different from the switch carrier group. The carrier group including the primary carrier is referred to as a primary carrier group, the carrier group not including the primary carrier is referred to as a secondary carrier group, the uplink control information actually transmitted carrier belongs to the secondary carrier group, and the uplink control information actually transmitted on the uplink control information actually transmitted carrier may include uplink control information of all carriers of the secondary carrier group.

Specifically, the uplink control information actually transmitted by the terminal through the uplink control information includes the uplink control information of all carriers in the second carrier group to which the uplink control information actually transmitted carrier belongs;

and the terminal transmits the uplink control information through the actual transmission carrier of the uplink control information.

For example, the second carrier group includes carrier 1, carrier 2, and carrier 3, and if carrier 1 is an uplink control information actually transmitted carrier, the uplink control information transmitted on carrier 1 may include uplink control information of some or all of carriers 1, 2, and 3.

When the uplink control information actual transmission carrier is an uplink control information transmission carrier and the uplink control information actual transmission carrier is an authorized carrier, the uplink control information resource indication modes on the uplink control information actual transmission carrier are different, which is described below.

In a first mode, if the actual uplink control information transmission carrier is an uplink control information transmission carrier, the terminal transmits uplink control information through an uplink control information resource on the actual uplink control information transmission carrier;

correspondingly, the network side equipment reserves uplink control information resources for transmitting uplink control information for the terminal through the unauthorized carrier in the switching carrier group, and receives the uplink control information of the terminal.

The uplink control information transmission carrier is provided with an uplink control information resource, and the uplink control information resource is used for transmitting uplink control information. The number of resources may be set as desired, such as 1.

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

If the setting is not in a predefined mode:

the network side equipment can inform the terminal of the uplink control information resource on the actual transmission carrier of the uplink control information through downlink control indication information;

correspondingly, the terminal determines all uplink control information resources on the actual transmission carrier of the uplink control information through the downlink control indication information. And/or

Correspondingly, the terminal determines all uplink control information resources on the actual transmission carrier of the uplink control information through high-level signaling configuration information.

In a second mode, if the actual transmission carrier of the uplink control information is an authorized carrier, the terminal transmits the uplink control information through an uplink control information resource which is used for transmitting the uplink control information switched by the unauthorized carrier and is on the actual transmission carrier of the uplink control information; and the uplink control information resource used for transmitting the unauthorized carrier and switching the unauthorized carrier and the uplink control information resource used for transmitting the uplink control information of the authorized carrier are the same or different.

Correspondingly, the network side equipment reserves uplink control information resources for transmitting the uplink control information switched by the unauthorized carrier for the terminal through the authorized carrier.

There are uplink control information resources on the authorized carrier, and the uplink control information resources may be of two types or one type. If the uplink control information resources are of two types, one type is the uplink control information resources used for transmitting the uplink control information switched by the unauthorized carrier, and the other type is the uplink control information resources used for transmitting the uplink control information switched by the authorized carrier;

if the uplink control information resource is of the same type, the uplink control information resource can transmit the uplink control information of the unauthorized carrier switching; the uplink control information of the authorized carrier can also be transmitted, so that two uplink control information can be transmitted simultaneously, and the uplink control information resource can be relatively large. Optionally, to avoid resource waste, the base station may instruct other terminals to use the resource after confirming that the terminal has preempted the channel.

If the setting is not in a predefined mode:

The network side equipment informs the terminal of the uplink control information resource on the actual transmission carrier of the uplink control information through high-level signaling configuration information;

And in case two, configuring a switching carrier group for the terminal.

The handover carrier group here includes an uplink control information transmission carrier and at least one other unlicensed carrier.

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

correspondingly, the terminal determines the switching carrier group according to the configuration of the network side equipment.

In this case, if the LBT detection fails, the terminal selects, from the handover carrier group, another unlicensed carrier that satisfies the predetermined rule and that the LBT detection succeeds as the actual uplink control information transmission carrier.

Correspondingly, if the DTX detection fails, the network side equipment performs DTX detection on each other unauthorized carrier except the uplink control information transmission carrier in the switching carrier group; and taking other unauthorized carriers with successful DTX detection as actual transmission carriers of the uplink control information.

For the second case, suppose that there are N unauthorized carriers in the handover carrier group, if DTX detection fails on the uplink control information transmission carrier, and if LBT detection succeeds on M unauthorized carriers among the remaining N-1 unauthorized carriers, the terminal selects the actual uplink control information 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 DTX detection on the uplink control information transmission carrier fails, the network side equipment respectively performs DTX detection on the remaining N-1 unauthorized carriers.

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

the carrier sequence number of other unauthorized carriers which are successfully detected by the LBT is the smallest, for example, the carrier with the smallest carrier sequence number is selected from M unauthorized carriers as the actual transmission carrier of the uplink control information;

the highest priority in other unauthorized carriers with successful LBT detection, wherein the priority can be determined according to interference conditions on the carriers or other manners;

Optionally, if there is no other unauthorized carrier for which LBT detection is successful in the handover carrier group, and the handover carrier group includes an authorized carrier, and the current supported uplink control information is handed over to the authorized carrier, the terminal uses the authorized carrier as an actual transmission carrier of the uplink control information;

correspondingly, if there are no other unauthorized carriers in the handover carrier group for which DTX detection is successful, and the handover carrier group includes an authorized carrier, and the terminal currently supports uplink control information to be handed over to the authorized carrier, the network side device uses the authorized carrier as an actual uplink control information transmission carrier.

That is, if LBT on the N unlicensed carriers fails

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

correspondingly, if the uplink control information switching carrier group does not contain the authorized carrier or does not support the uplink control information switching to the authorized carrier, the network side equipment 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.

And if the uplink control information switching carrier group contains the authorized carrier and supports the uplink control information switching to the authorized carrier, determining the authorized carrier as the actual transmission carrier of the uplink control information.

The embodiment of the present invention may further provide that only one authorized carrier is in one handover carrier group.

Of course, a plurality of them is also possible.

In implementation, the network side device indicates, through a higher layer signaling or a physical layer signaling, whether the terminal currently supports uplink control information to be switched to an authorized carrier, for example, may indicate through 1 bit in a downlink scheduling signaling;

correspondingly, the terminal judges whether the uplink control information is currently supported to be switched to the authorized carrier through the indication information contained in the high-level signaling or the physical-layer signaling.

When the actual uplink control information transmission carrier is an uplink control information transmission carrier and the actual uplink control information transmission carrier is an authorized carrier, uplink control information resources on the actual uplink control information transmission carrier are different, which is described below.

In a first mode, if the actual uplink control information transmission carrier is an uplink control information transmission carrier or other unauthorized carriers, the terminal transmits uplink control information through uplink control information resources on the actual uplink control information transmission carrier;

If the setting is not in a predefined mode:

if the uplink control information resource is of the same type, the uplink control information resource can transmit uplink control information for unauthorized carrier switching; the uplink control information of the authorized carrier can also be transmitted, so that two uplink control information can be transmitted simultaneously, and the uplink control information resource can be relatively large. Optionally, to avoid resource waste, the base station may instruct other terminals to use the resource after confirming that the terminal has preempted the channel.

Correspondingly, the base station can determine whether the uplink control information resource is transmitted by the uplink control information switched by the unauthorized carrier or the uplink control information switched by the authorized carrier or both through blind detection.

If the setting is not in a predefined mode:

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.), or may be another network side device.

The terminal according to the embodiment of the present invention may also be referred to as UE (user equipment), for example, a pad, a mobile phone, and other terminals capable of connecting to a network side device.

The embodiments of the present invention will be described in detail below with reference to several examples.

Example 1:

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

case 1: the terminal performs LBT detection on the carrier 6, if the LBT detection result on the carrier 6 is that the carrier is idle, the uplink control information 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 the uplink control information after detecting the transmission of the uplink control information.

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

correspondingly, the base station firstly performs DTX detection on the carrier 6 without detecting uplink control information transmission, and then performs DTX detection on the carrier 1, and receives the uplink control information after detecting the uplink control information transmission.

Case 3: the terminal does not support simultaneous transmission of uplink control information 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, so that the terminal transmits uplink control information of the carrier 6 and the carrier 10 on the PUSCH on the carrier 1;

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

Example 2:

the terminal aggregates 10 carriers, wherein the carrier 1 is an authorized carrier, and the carriers 2-10 are unauthorized carriers. The carrier waves 1-5 are carrier wave group A, the carrier waves 6-10 are carrier wave group B, the carrier wave 1 is a main carrier wave in the carrier wave group A, and the carrier wave 6 is a main carrier wave in the carrier wave group B. The base station configures the carrier 6 as an uplink control information transmission carrier, and configures the carriers 6-10 as a switching carrier group. The terminal needs to perform uplink control information feedback for the carrier 6 and the carrier 10, and executes the following processes:

case 1: the terminal carries out LBT detection on the carriers 6-10, if the LBT detection result on the carrier 6 is that the carrier is idle, the uplink control information is transmitted on the carrier 6;

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

Case 2: the method comprises the steps that a terminal carries out LBT detection on carriers 6-10, the LBT detection results on the carrier 6 and the carrier 8 are carrier busy, the LBT detection results on the carrier 7, the carrier 9 and the carrier 10 are carrier idle, the terminal selects an uplink control information transmission carrier according to a carrier serial number, and then selects the carrier 7 which is successful in LBT detection and has the smallest carrier serial number to transmit the uplink control information;

correspondingly, the base station firstly carries out DTX detection on the carrier 6 without detecting the transmission of the uplink control information, then carries out DTX detection on the carriers 7-10 according to the carrier serial numbers respectively, and receives the uplink control information after detecting the transmission of the uplink control information on the carrier 7;

case 3: the terminal selects the uplink control information transmission carrier according to the scheduling information and the carrier serial number, and selects the carrier 10 with successful LBT detection and uplink control information feedback to transmit the uplink control information as only the uplink control information needs to be transmitted aiming at the carrier 6 and the carrier 10;

correspondingly, the base station firstly performs DTX detection on the carrier 6 without detecting uplink control information transmission, then performs DTX detection on the carrier 10 on which the terminal needs to perform uplink control information feedback, and receives the uplink control information after detecting uplink control information transmission on the carrier 10.

Case 4: the terminal selects the uplink control information to transmit the carrier according to the interference information, and when 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, the terminal selects to transmit the uplink control information on the carrier 9;

correspondingly, the base station firstly performs DTX detection on the carrier 6 without detecting the transmission of the uplink control information, then performs DTX detection on the carriers 7-10 according to the carrier serial numbers respectively, and receives the uplink control information after detecting the transmission of the uplink control information on the carrier 9.

Example 3:

the terminal aggregates 10 carriers, wherein the carrier 1 is an authorized carrier, and the carriers 2-10 are unauthorized carriers. The carrier waves 1-5 are carrier wave group A, the carrier waves 6-10 are carrier wave group B, the carrier wave 1 is a main carrier wave in the carrier wave group A, and the carrier wave 6 is a main carrier wave in the carrier wave group B. The base station configures the carrier 6 as an uplink control information transmission carrier, and configures the carriers 6-10 as an uplink control information switching carrier group. The terminal needs to perform uplink control information feedback for carrier 1, carrier 2/6 and carrier 10, and performs the following processes:

case 1: the terminal feeds back the uplink control information of the carrier 1 and the carrier 2 on the carrier 1, performs LBT detection on the carriers 6-10, and transmits the uplink control information of the carrier 6 and the carrier 10 on the carrier 1 if the LBT detection results on the carriers 6-10 are all carrier busy. The same uplink control information is used for the uplink control information of the carrier 1 and the carrier 2 and the uplink control information of the carrier 6 and the carrier 10.

Correspondingly, the base station firstly performs DTX detection on the carriers 6-10, no uplink control information transmission is detected, then bits with two lengths are used for decoding the uplink control information on the carrier 1, the first length corresponds to the feedback of the uplink control information of the carrier 1 and the carrier 2 only, the second length corresponds to the feedback of the uplink control information of the carrier 1, the carrier 2/6 and the carrier 10 at the same time, if the base station successfully decodes with the first length, the terminal only feeds back the uplink control information of the carrier 1 and the carrier 2, and if the base station successfully decodes with the second length, the terminal simultaneously feeds back the uplink control information of the carrier 1, the carrier 2/6 and the carrier 10.

Case 2: the terminal feeds back the uplink control information of the carrier 1 and the carrier 2 on the carrier 1, performs LBT detection on the carriers 6-10, and transmits the uplink control information of the carrier 6 and the carrier 10 on the carrier 1 if the LBT detection results on the carriers 6-10 are all carrier busy. The uplink control information of the carrier 1 and the carrier 2 and the uplink control information of the carrier 6 and the carrier 10 use different uplink control information resources.

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

As shown in fig. 2, a first terminal according to an embodiment of the present invention includes:

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

a first processing module 201, configured to determine an actual uplink control information transmission carrier if LBT detection fails, where the actual uplink control information transmission carrier is an authorized carrier or another unauthorized carrier for which LBT detection succeeds;

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

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

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

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

Optionally, the first processing module 201 is specifically configured to determine whether the uplink control information is currently supported to be switched to the authorized carrier by the following manner:

Optionally, the transmission module 202 is specifically configured to:

Optionally, the transmission module 202 is specifically configured to,

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 the terminal supports simultaneous transmission of the PUCCH and the PUSCH, transmitting uplink control information through the PUCCH on the PUCCH actual transmission carrier; or

And 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, transmitting uplink control information through the PUSCH on the PUCCH actual transmission carrier.

Optionally, the uplink control information actually transmitted by the transmission module 202 through the uplink control information includes uplink control information of all carriers in a carrier group to which the uplink control information actually transmitted carrier belongs.

As shown in fig. 3, a first network-side device according to an embodiment of the present invention includes:

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

a second processing module 301, configured to determine, if DTX detection fails, an actual uplink control information transmission carrier, where the actual uplink control information transmission carrier is an authorized carrier or another unauthorized carrier for which DTX detection succeeds;

a receiving module 302, configured to actually transmit uplink control information of a carrier receiving terminal through the uplink control information;

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

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:

and configuring a switching carrier group for the terminal.

Optionally, the receiving module 302 is specifically configured to:

the second processing module 301 is further configured to:

As shown in fig. 4, a second terminal according to an embodiment of the present invention includes:

a processor 401 for reading the program in the memory 404 and executing the following processes:

performing LBT detection on an uplink control information transmission carrier, wherein the uplink control information transmission carrier is an unauthorized carrier; if LBT detection fails, determining an actual transmission carrier of the uplink control information, wherein the actual transmission carrier of the uplink control information is an authorized carrier or another unauthorized carrier for which LBT detection succeeds; the uplink control information is transmitted by the transceiver 402 through the uplink control information actual transmission carrier.

A transceiver 402 for receiving and transmitting 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:

Optionally, the processor 401 is specifically configured to:

Optionally, the processor 401 is specifically configured to determine whether the uplink control information is currently supported to be switched to the authorized carrier by the following manner:

Optionally, the processor 401 is specifically configured to:

Optionally, the processor 401 is specifically configured to,

Optionally, the processor 401 is specifically configured to:

Optionally, the uplink control information actually transmitted by the processor 401 through the uplink control information includes uplink control information of all carriers in a carrier group to which the uplink control information actually transmitted carrier belongs.

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

Processor 401 is responsible for managing bus 400 and the usual processes, such as running a general-purpose operating system as described previously. And memory 404 may be used to store data used by processor 401 in performing operations.

Alternatively, the processor 401 may be a CPU (central processing unit), an ASIC (Application specific integrated Circuit), an FPGA (Field Programmable Gate Array), or a CPLD (Complex Programmable Logic Device).

As shown in fig. 5, a second network-side device according to the embodiment of the present invention includes:

the processor 501 is configured to read the program in the memory 504, and execute the following processes:

performing DTX detection on an uplink control information transmission carrier, wherein the uplink control information transmission carrier is an unauthorized carrier; if DTX detection fails, determining an actual transmission carrier of uplink control information, wherein the actual transmission carrier of the uplink control information is an authorized carrier or other unauthorized carriers with successful DTX detection; uplink control information of the carrier receiving terminal is actually transmitted through the uplink control information by using the transceiver 502.

A transceiver 502 for receiving and transmitting data under the control of the processor 501;

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:

and configuring a switching carrier group for the terminal.

Optionally, the processor 501 is specifically configured to:

the processor 501 is further configured to:

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

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

Alternatively, the processor 501 may be a CPU, ASIC, FPGA or CPLD.

Based on the same inventive concept, the embodiment of the present invention further provides a method for transmitting uplink control information at a terminal side, because the device corresponding to the method is the terminal in the system for transmitting uplink control information in the embodiment of the present invention, and the principle of the method for solving the problem is similar to that of the system, the implementation of the method can refer to the implementation of the system, and repeated details are not repeated.

As shown in fig. 6, the method for transmitting uplink control information by a terminal side according to the embodiment of the present invention includes:

step 600, the terminal performs LBT detection on an uplink control information transmission carrier, wherein the uplink control information transmission carrier is an unauthorized carrier;

601, if the LBT detection fails, the terminal determines an actual transmission carrier of the uplink control information, wherein the actual transmission carrier of the uplink control information is an authorized carrier or another unauthorized carrier for which the LBT detection succeeds;

step 602, the terminal actually transmits carrier wave transmission uplink control information through the uplink control information;

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

Based on the same inventive concept, the embodiment of the present invention further provides a method for transmitting uplink control information by a network side, and since a device corresponding to the method is a network side device in the system for transmitting uplink control information in the embodiment of the present invention, and a principle of solving problems of the method is similar to that of the system, the implementation of the method can refer to the implementation of the system, and repeated details are omitted.

As shown in fig. 7, the method for transmitting uplink control information by a network side according to the embodiment of the present invention includes:

step 700, a network side device performs DTX detection on an uplink control information transmission carrier, wherein the uplink control information transmission carrier is an unauthorized carrier;

step 701, if DTX detection fails, the network side device determines an actual transmission carrier of uplink control information, where the actual transmission carrier of the uplink control information is an authorized carrier or another unauthorized carrier for which DTX detection succeeds;

step 702, the network side device actually transmits uplink control information of a carrier receiving terminal through the uplink control information;

Optionally, the method further includes:

From the above, it can be seen that: after the LBT detection on the uplink control information transmission carrier is failed, the terminal of the embodiment of the invention can determine the actual transmission carrier of the uplink control information and transmit the uplink control information through the actual transmission carrier of the uplink control information, wherein the actual transmission carrier of the uplink control information is an authorized carrier or other non-authorized carriers for which the LBT detection is successful. The terminal of the embodiment of the invention can determine the actual transmission carrier of the uplink control information, wherein the actual transmission carrier of the uplink control information is an authorized carrier or another unauthorized carrier which is successfully detected by LBT, so that the terminal can switch to the unauthorized carrier or the authorized carrier which is successfully detected by other LBT to transmit the uplink control information, and the condition that the uplink control information cannot be timely and correctly transmitted due to the fact that a channel cannot be preempted is avoided; the systematicness is further improved.

The present application is described above with reference to block diagrams and/or flowchart illustrations of methods, apparatus (systems) and/or computer program products according to embodiments of the application. It will be understood that one block of the block diagrams and/or flowchart illustrations, and combinations of blocks in the block diagrams and/or flowchart illustrations, can be implemented by computer program instructions. These computer program instructions may be provided to a processor of a general purpose computer, special purpose computer, and/or other programmable data processing apparatus to produce a machine, such that the instructions, which execute via the processor of the computer and/or other programmable data processing apparatus, create means for implementing the functions/acts specified in the block diagrams and/or flowchart block or blocks.

Accordingly, the subject application may also be embodied in hardware and/or in software (including firmware, resident software, micro-code, etc.). Furthermore, the present application may take the form of a computer program product on a computer-usable or computer-readable storage medium having computer-usable or computer-readable program code embodied in the medium for use by or in connection with an instruction execution system. In the context of this application, a computer-usable or computer-readable medium may be any medium that can contain, store, communicate, propagate, or transport the program for use by or in connection with the instruction execution system, apparatus, or device.

It will be apparent to those skilled in the art that various changes and modifications may be made in the present invention without departing from the spirit and scope of the invention. Thus, if such modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalents, the present invention is also intended to include such modifications and variations.

Claims

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

a terminal performs Listen Before Talk (LBT) detection on an uplink control information transmission carrier, wherein the uplink control information transmission carrier is an unauthorized carrier;

if the LBT detection fails, the terminal determines an actual transmission carrier of the uplink control information, wherein the actual transmission carrier of the uplink control information is one other unauthorized carrier of which the LBT detection is successful;

the uplink control information is uplink control information which can be transmitted through a Physical Uplink Control Channel (PUCCH) format;

the terminal determines the actual transmission carrier of the uplink control information, and the determination comprises the following steps:

if the LBT detection fails, the terminal selects one other unauthorized carrier which meets the preset rule and is successfully detected by the LBT from the switching carrier group as an actual transmission carrier of the uplink control information; the switching carrier group is configured for the terminal by network side equipment, and comprises an uplink control information transmission carrier and at least one other unauthorized carrier;

wherein, the switching carrier group comprises an uplink control information transmission carrier and at least one other non-authorized carrier;

the predetermined rule is one of the following rules:

2. The method of claim 1, wherein after the terminal performs the LBT detection on the uplink control information transmission carrier, further comprising:

3. The method of claim 1, wherein the determining, by the terminal, the actual transmission carrier of the uplink control information comprises:

4. The method of claim 1, wherein the determining, by the terminal, the actual transmission carrier of the uplink control information comprises:

5. The method of claim 1, wherein the terminal determines whether the uplink control information is currently supported to be switched to the authorized carrier by:

6. The method of claim 2, wherein the terminal transmits the uplink control information through the uplink control information actual transmission carrier, comprising:

if the actual transmission carrier of the uplink control information is an authorized carrier, the terminal transmits the uplink control information through the resource of the uplink control information for transmitting the unauthorized carrier switching on the actual transmission carrier of the uplink control information; and the resource used for transmitting the unauthorized carrier and switching on the authorized carrier is the same as or different from the uplink control information resource used for transmitting the uplink control information of the authorized carrier.

7. The method of claim 6, wherein the terminal determines all uplink control information resources on the uplink control information actual transmission carrier by some or all of:

8. The method according to any one of claims 1 to 7, wherein the terminal transmits the uplink control information through an uplink control information actual transmission carrier, and the method comprises:

9. The method according to any one of claims 1 to 7, wherein the uplink control information transmitted by the terminal through the uplink control information actual transmission carrier includes uplink control information of all carriers in a carrier group to which the uplink control information actual transmission carrier belongs.

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

the method comprises the steps that network side equipment carries out Discontinuous Transmission (DTX) detection on an uplink control information transmission carrier, wherein the uplink control information transmission carrier is an unauthorized carrier;

if DTX detection fails, the network side equipment determines that uplink control information actually transmits carriers, wherein the uplink control information actually transmits carriers which are other unauthorized carriers with successful DTX detection;

the uplink control information is uplink control information which can be transmitted through a PUCCH format;

the determining, by the network side device, an actual transmission carrier of the uplink control information includes:

wherein, the switching carrier group is configured for the terminal by the network side equipment; the switching carrier group comprises an uplink control information transmission carrier and at least one other unauthorized carrier.

11. The method of claim 10, wherein before DTX detection on the uplink control information transmission carrier by the network side device, further comprising:

12. The method of claim 10, wherein after DTX detection on the uplink control information transmission carrier by the network side device, further comprising:

13. The method of claim 10, wherein the determining, by the network side device, the actual transmission carrier of the uplink control information comprises:

14. The method of claim 10, wherein the determining, by the network side device, the actual transmission carrier of the uplink control information comprises:

15. The method of claim 14, further comprising:

16. The method of claim 14, wherein before DTX detection on the uplink control information transmission carrier by the network side device, further comprising:

17. The method of claim 10, wherein the network side device actually transmits uplink control information of the carrier receiving terminal through the uplink control information, and the method includes:

18. The method of claim 17, wherein the uplink control information resource is a non-predefined resource;

19. A terminal for transmitting uplink control information, the terminal comprising:

a first processing module, configured to determine an actual uplink control information transmission carrier if LBT detection fails, where the actual uplink control information transmission carrier is one of other unlicensed carriers for which LBT detection succeeds;

the first processing module is specifically configured to:

if the LBT detection fails, selecting one other unauthorized carrier which meets a preset rule and is successfully detected by the LBT from the switching carrier group as an actual transmission carrier of the uplink control information; the switching carrier group is configured for the terminal by network side equipment, and comprises an uplink control information transmission carrier and at least one other unauthorized carrier;

the predetermined rule is one of the following rules:

20. The terminal of claim 19, wherein the first processing module is further configured to:

21. The terminal of claim 19, wherein the first processing module is further configured to: and if the LBT detection fails, the authorized carrier is used as the actual transmission carrier of the uplink control information.

22. The terminal of claim 19, wherein the first processing module is specifically configured to:

23. The terminal of claim 19, wherein the first processing module is specifically configured to determine whether the uplink control information is currently supported to be switched to the authorized carrier by:

24. The terminal of claim 19, wherein the transmission module is specifically configured to:

25. The terminal of claim 24, wherein the transmission module is specifically configured to,

26. The terminal of any of claims 19 to 25, wherein the transmission module is specifically configured to:

27. The terminal according to any of claims 19 to 25, wherein the uplink control information transmitted via the uplink control information actual transmission carrier includes uplink control information of all carriers in a carrier group to which the uplink control information actual transmission carrier belongs.

28. A network side device for transmitting uplink control information, the network side device comprising:

a second processing module, configured to determine, if DTX detection fails, an actual transmission carrier of uplink control information, where the actual transmission carrier of uplink control information is another unauthorized carrier for which DTX detection succeeds;

the second processing module is specifically configured to:

29. The network-side device of claim 28, wherein the second processing module is further configured to:

30. The network-side device of claim 28, wherein the second processing module is further configured to:

31. The network-side device of claim 28, wherein the second processing module is specifically configured to:

32. The network-side device of claim 28, wherein the second processing module is specifically configured to:

33. The network-side device of claim 32, wherein the second processing module is further configured to:

34. The network-side device of claim 28, wherein the second processing module is specifically configured to:

and configuring a switching carrier group for the terminal.

35. The network-side device of claim 28, wherein the receiving module is specifically configured to:

36. The network-side device of claim 35, wherein the uplink control information resource is a non-predefined resource;

the second processing module is further configured to: