CN105230095B

CN105230095B - Uplink control channel transmission method, device and system

Info

Publication number: CN105230095B
Application number: CN201480029178.7A
Authority: CN
Inventors: 闫志宇; 曲秉玉
Original assignee: Huawei Technologies Co Ltd
Current assignee: Huawei Technologies Co Ltd
Priority date: 2014-01-29
Filing date: 2014-01-29
Publication date: 2020-01-10
Anticipated expiration: 2034-01-29
Also published as: CN105230095A; WO2015113256A1

Abstract

The embodiment of the invention provides a method, a device and a system for transmitting an uplink control channel. The uplink control channel transmission method comprises the following steps: determining a first uplink carrier and a second uplink carrier of a Physical Uplink Control Channel (PUCCH) which can be used for sending hybrid automatic repeat request (HARQ-ACK) feedback information; detecting downlink data on a downlink carrier to obtain a detection result, wherein the downlink carrier comprises a first downlink carrier belonging to a first cell and/or a second downlink carrier belonging to a second cell and/or at least one downlink carrier belonging to other cells, and the downlink data is first-type downlink data or second-type downlink data; and determining the format of the PUCCH and the resource index of the PUCCH for sending the HARQ-ACK feedback information according to the detection result. The embodiment of the invention solves the problem that in the prior art, the UE only feeds back HARQ-ACK information on a PUCCH of a PCell, so that the load of an uplink carrier of the PCell is too heavy.

Description

Uplink control channel transmission method, device and system

Technical Field

The present invention relates to communications technologies, and in particular, to a method, an apparatus, and a system for uplink control channel transmission.

Background

In a Long Term Evolution (LTE) system, in order to support technologies such as adaptive coded modulation and Hybrid Automatic repeat request (HARQ) of a Physical Downlink Shared Channel (PDSCH), a User Equipment (User Equipment, UE) needs to feed back Hybrid Automatic repeat request (HARQ) information to a network device through a Physical Uplink Control Channel (PUCCH) or a Physical Uplink Shared Channel (PUSCH), where the HARQ information includes Acknowledgement (ACK) and Negative Acknowledgement (NACK), and whether Downlink data corresponding to a Downlink data carried on the ACK is correctly received (or not correctly received (NACK) on the UE side. In addition, in order to meet the peak data rate requirement of the international telecommunication union for the fourth generation communication technology, in the LTE-Advanced (LTE-a), a Carrier Aggregation (CA) technology is introduced, and the frequency spectrums of two or more Component Carriers (CC) are aggregated to obtain a wider transmission bandwidth.

In the existing CA technology, a base station (Evolved Node B, eNodeB for short) configures a primary Cell (PCell) and a secondary Cell (SCell) for a UE, and the UE feeds back downlink data carried on a PDSCH transmitted in downlink subframes of all Serving cells (SC for short) (including the PCell and the SCell) through HARQ-ACK information carried on a PUCCH, where the HARQ-ACK information is transmitted only on an uplink carrier of the PCell.

Therefore, in a deployment scenario of a small cell covered by a macro network, in order to ensure a certain mobility performance, a large number of UEs may simultaneously select an uplink carrier of a PCell for HARQ-ACK feedback, so that a load of the uplink carrier of the PCell transmitting a PUCCH is too heavy, and especially under the condition that the number of the uplink carriers of the PCell is small and the carrier bandwidth is small, the uplink carrier of the PCell may not carry uplink data transmission of a PUSCH channel any more.

Disclosure of Invention

The embodiment of the invention provides a method, a device and a system for transmitting an uplink control channel, which aim to solve the problem that in the prior art, the UE only feeds back HARQ-ACK information on a PUCCH of a PCell, so that the load of an uplink carrier of the PCell is too heavy.

The embodiment of the invention provides an uplink control channel transmission method, which comprises the following steps:

determining a first uplink carrier and a second uplink carrier of a Physical Uplink Control Channel (PUCCH) which can be used for sending hybrid automatic repeat request (HARQ-ACK) feedback information, wherein the first uplink carrier corresponds to a first cell, and the second uplink carrier corresponds to a second cell;

detecting downlink data on a downlink carrier to obtain a detection result, wherein the downlink carrier comprises a first downlink carrier belonging to a first cell and/or a second downlink carrier belonging to a second cell and/or at least one downlink carrier belonging to other cells, the downlink data is first type downlink data or second type downlink data, the first type downlink data is a physical downlink shared data channel (PDSCH) scheduled by a Physical Downlink Control Channel (PDCCH) or a PDCCH releasing downlink semi-persistent scheduling (SPS), and the second type downlink data is a PDSCH not scheduled by the PDCCH;

determining the format of the PUCCH and the resource index of the PUCCH for sending the HARQ-ACK feedback information according to the detection result;

the determining the format of the PUCCH and the resource index of the PUCCH for sending the HARQ-ACK feedback information according to the detection result comprises the following steps:

if the downlink data is detected on the at least one downlink carrier belonging to other cells, determining that the format of the PUCCH for sending the HARQ-ACK feedback information is a first format, wherein the first format is PUCCH format 3;

determining that a format of the PUCCH for transmitting the HARQ-ACK feedback information is a second format if the downlink data is detected only on the first downlink carrier of the first cell and/or the second downlink carrier of the second cell, where the second format is PUCCH format 1a or PUCCH format1 b.

In a second aspect, an embodiment of the present invention provides an uplink control channel transmission method, including:

configuring a first uplink carrier and a second uplink carrier of a Physical Uplink Control Channel (PUCCH) for sending hybrid automatic repeat request (HARQ-ACK) feedback information for User Equipment (UE), wherein the first uplink carrier corresponds to a first cell, and the second uplink carrier corresponds to a second cell;

sending downlink data to the UE through a downlink carrier, and determining the PUCCH resource which can be used for sending the HARQ-ACK feedback information by the UE, wherein the downlink carrier comprises a first downlink carrier belonging to a first cell and/or a second downlink carrier belonging to a second cell and/or at least one downlink carrier belonging to other cells, the downlink data is first-type downlink data or second-type downlink data, the first-type downlink data is a physical downlink shared data channel (PDSCH) scheduled by a Physical Downlink Control Channel (PDCCH) or a PDCCH releasing downlink semi-persistent scheduling (SPS), and the second-type downlink data is a PDSCH without PDCCH scheduling;

and detecting the HARQ-ACK feedback information sent by the UE on an uplink carrier according to the determined PUCCH resource.

In a third aspect, an embodiment of the present invention provides a user equipment UE, including:

a carrier determining module, configured to determine a first uplink carrier and a second uplink carrier of a physical uplink control channel PUCCH, where the first uplink carrier corresponds to a first cell and the second uplink carrier corresponds to a second cell, where the physical uplink control channel PUCCH is used to send hybrid automatic repeat request HARQ-ACK feedback information;

a detection module, configured to detect downlink data on a downlink carrier to obtain a detection result, where the downlink carrier includes a first downlink carrier belonging to a first cell and/or a second downlink carrier belonging to a second cell and/or at least one downlink carrier belonging to another cell, the downlink data is first type of downlink data or second type of downlink data, the first type of downlink data is a physical downlink shared data channel PDSCH scheduled by a physical downlink control channel PDCCH or a PDCCH releasing a downlink semi-persistent scheduling SPS, and the second type of downlink data is a PDSCH not scheduled by the PDCCH;

a resource determining module, configured to determine, according to the detection result, a format of the PUCCH and a resource index of the PUCCH, where the PUCCH and the resource index are used to send the HARQ-ACK feedback information;

the resource determining module is specifically configured to determine that a format of the PUCCH that sends the HARQ-ACK feedback information is a first format if the downlink data is detected on the at least one downlink carrier that belongs to the other cell, where the first format is a PUCCH format 3;

In a fourth aspect, an embodiment of the present invention provides a network device, including:

the system comprises a carrier configuration module, a first uplink carrier and a second uplink carrier, wherein the first uplink carrier and the second uplink carrier are used for configuring a Physical Uplink Control Channel (PUCCH) for sending hybrid automatic repeat request (HARQ-ACK) feedback information for User Equipment (UE), and the first uplink carrier corresponds to a first cell and the second uplink carrier corresponds to a second cell;

a sending determination module, configured to send downlink data to the UE through a downlink carrier, and determine the PUCCH resource that the UE can use to send the HARQ-ACK feedback information, where the downlink carrier includes a first downlink carrier belonging to a first cell and/or a second downlink carrier belonging to a second cell and/or at least one downlink carrier belonging to another cell, the downlink data is first type of downlink data or second type of downlink data, the first type of downlink data is a physical downlink shared data channel PDSCH scheduled by a physical downlink control channel PDCCH or a PDCCH releasing downlink semi-persistent scheduling SPS, and the second type of downlink data is a PDSCH without PDCCH scheduling;

and the detection module is used for detecting the HARQ-ACK feedback information sent by the UE on the uplink carrier according to the determined PUCCH resource.

In a fifth aspect, an embodiment of the present invention provides a user equipment UE, including:

the device comprises a processor and a control unit, wherein the processor is used for determining a first uplink carrier and a second uplink carrier of a Physical Uplink Control Channel (PUCCH) which can be used for sending hybrid automatic repeat request (HARQ-ACK) feedback information, wherein the first uplink carrier corresponds to a first cell, and the second uplink carrier corresponds to a second cell; detecting downlink data on a downlink carrier to obtain a detection result, wherein the downlink carrier comprises a first downlink carrier belonging to a first cell and/or a second downlink carrier belonging to a second cell and/or at least one downlink carrier belonging to other cells, the downlink data is first type downlink data or second type downlink data, the first type downlink data is a physical downlink shared data channel (PDSCH) scheduled by a Physical Downlink Control Channel (PDCCH) or a PDCCH releasing downlink semi-persistent scheduling (SPS), and the second type downlink data is a PDSCH not scheduled by the PDCCH; determining the format of the PUCCH and the resource index of the PUCCH for sending the HARQ-ACK feedback information according to the detection result;

the processor is specifically configured to determine that a format of the PUCCH that sends the HARQ-ACK feedback information is a first format if the downlink data is detected on the at least one downlink carrier that belongs to the other cell, where the first format is a PUCCH format 3; determining that a format of the PUCCH for transmitting the HARQ-ACK feedback information is a second format if the downlink data is detected only on the first downlink carrier of the first cell and/or the second downlink carrier of the second cell, where the second format is PUCCH format 1a or PUCCH format1 b.

In a sixth aspect, an embodiment of the present invention provides a network device, including:

a processor, configured to configure, for a user equipment UE, a first uplink carrier and a second uplink carrier of a physical uplink control channel PUCCH that sends hybrid automatic repeat request HARQ-ACK feedback information, where the first uplink carrier corresponds to a first cell and the second uplink carrier corresponds to a second cell;

a transmitter, configured to transmit downlink data to the UE through a downlink carrier, where the downlink carrier includes a first downlink carrier belonging to a first cell and/or a second downlink carrier belonging to a second cell and/or at least one downlink carrier belonging to another cell, the downlink data is first-type downlink data or second-type downlink data, the first-type downlink data is a physical downlink shared data channel PDSCH scheduled by a physical downlink control channel PDCCH or a PDCCH releasing downlink semi-persistent scheduling SPS, and the second-type downlink data is a PDSCH not scheduled by the PDCCH;

the processor is further configured to determine the PUCCH resources that the UE may use to transmit the HARQ-ACK feedback information; and detecting the HARQ-ACK feedback information sent by the UE on an uplink carrier according to the determined PUCCH resource.

In a seventh aspect, an embodiment of the present invention provides an uplink control channel transmission system, including: user Equipment (UE) and network equipment, wherein the UE adopts the UE of the third aspect, and the network equipment adopts the network equipment of the fourth aspect.

In an eighth aspect, an embodiment of the present invention provides an uplink control channel transmission system, including: user Equipment (UE) and network equipment, wherein the UE adopts the UE in the fifth aspect, and the network equipment adopts the network equipment in the sixth aspect.

According to the uplink control channel transmission method, device and system provided by the embodiment of the invention, the HARQ-ACK feedback information is sent on the first uplink carrier and/or the second uplink carrier through the UE to feed back downlink data of a plurality of cells, the load of the uplink carriers is reduced, the transmission format and resources of the PUCCH are dynamically determined under the downlink data scheduling condition of each Cell through the eNodeB, the transmission resources of the PUCCH format3 channel can be reasonably distributed by utilizing the mechanism, and the communication performance of the system is improved.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly introduced below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.

Fig. 1 is a flowchart of a first embodiment of an uplink control channel transmission method according to the present invention;

fig. 2 is a flowchart of a second method for uplink control channel transmission according to the present invention;

fig. 3 is a flowchart of a third method for uplink control channel transmission according to the present invention;

fig. 4 is a flowchart of a fourth method for uplink control channel transmission according to the present invention;

fig. 5 is a flowchart of a fifth embodiment of an uplink control channel transmission method according to the present invention;

fig. 6 is a flowchart of a sixth embodiment of an uplink control channel transmission method according to the present invention;

fig. 7 is a flowchart of a seventh embodiment of an uplink control channel transmission method according to the present invention;

FIG. 8 is a schematic structural diagram of a UE according to a first embodiment of the present invention;

FIG. 9 is a schematic structural diagram of a second UE embodiment according to the present invention;

FIG. 10 is a diagram illustrating a first embodiment of a network device;

fig. 11 is a schematic structural diagram of a second network device according to the embodiment of the present invention;

FIG. 12 is a schematic structural diagram of a UE according to a third embodiment of the present invention;

FIG. 13 is a schematic structural diagram of a UE according to a fourth embodiment of the present invention;

fig. 14 is a schematic structural diagram of a third embodiment of a network device according to the present invention;

fig. 15 is a schematic structural diagram of an uplink control channel transmission system according to an embodiment of the present invention.

Detailed Description

In the prior art, in a carrier aggregation scenario, a UE sends a PUCCH on an uplink carrier of a Pcell, and a power control command word transmitted by the PUCCH channel is derived from information of a TPC command field for the PUCCH in a PDCCH on the Pcell. The network equipment does not distinguish whether format (format)1a/1b or PUCCH format3 is sent by the UE to the power control message carried in the TPC command word of the PUCCH, and the UE reflects certain transmission power deviation according to different transmission formats when adjusting the transmission power of the PUCCH by using the TPC command word.

In order to offload PUCCH load of the uplink carrier of the Pcell, the PUCCH channel may also be transmitted on one or more scells other than the Pcell, i.e., the PUCCH channel is carried on the Scell, assuming that this Cell that can carry the PUCCH channel other than the Pcell is called PUCCH-Scell. If the UE only detects the PDSCH transmission on the downlink carrier of the Pcell, the UE uses PUCCH format 1a/1b to repeat HARQ-ACK, the transmission resource of the PUCCH format 1a/1b corresponds to the PDCCH resource position of the dispatching PDSCH, or uses SPS feedback resource configured on the Pcell; and if the UE detects the PDSCH transmission on any downlink carrier of the Scell except the Pcell, the UE feeds back the HARQ-ACK by using the PUCCH format3, and the resource of the PUCCH format3 is indicated by the eNodeB through the information of the TPC command field of the PDCCH of the Scell and can be on the uplink carrier of the PUCCH-Scell, so that the aim of unloading the PUCCH load in the Pcell is fulfilled.

However, since the power control command words transmitted by the PUCCH channel of PUCCH format 1a/1b and the PUCCH channel of PUCCH format3 are both from the TPC command field in the PDCCH on Pcell, if the eNodeB transmits downlink data for the UE on the downlink carriers of Pcell and other cells except Pcell, but the UE does not detect data on the downlink carriers of other cells except Pcell after reaching the UE, in this case, the UE may mistakenly assume that the eNodeB has data transmission for itself only on the downlink carrier of Pcell and use PUCCH format 1a/1b to feed back HARQ-ACK on the uplink carrier of Pcell. As a result, the eNodeB adjusts the transmission power of the PUCCH channel of the PUCCH format 1a/1b on Pcell by using the power Control message in the PDCCH of Pcell (including the PDCCH for scheduling PDSCH or other PDCCH carrying Downlink Control Information (DCI) format 3/3A).

Therefore, the technical scheme of the invention is that the UE can transmit PUCCH channels on other uplink carriers except Pcell, the sending format and resource index of the PUCCH are dynamically determined by the eNodeB under the scheduling condition of downlink data of each Cell, and the transmitting power of the PUCCH on the uplink carrier of the Cell where the PDCCH is located is respectively controlled on the PDCCH. By utilizing the mechanism, the transmission resources of the PUCCH can be reasonably distributed, the problem of PUCCH power control error is solved, the problem of overweight uplink carrier PUCCH load of the Pcell is also solved, and meanwhile, the transmission performance of the PUCCH is ensured.

In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. 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.

Fig. 1 is a flowchart of a first method for uplink control channel transmission according to an embodiment of the present invention, and as shown in fig. 1, the method of this embodiment may include:

step 101, determining a first uplink carrier and a second uplink carrier of a Physical Uplink Control Channel (PUCCH) which can be used for sending hybrid automatic repeat request (HARQ-ACK) feedback information;

the execution subject of the present embodiment may be a UE. The first uplink carrier corresponds to a first cell, the second uplink carrier corresponds to a second cell, and the UE can accurately acquire PUCCH resources for transmitting HARQ-ACK feedback information in subsequent operations when determining which one of the first uplink carrier and the second uplink carrier is the first uplink carrier and the first cell corresponding to the first uplink carrier and the second cell corresponding to the second uplink carrier.

102, detecting downlink data on a downlink carrier to obtain a detection result;

in this embodiment, the downlink carriers include a first downlink carrier belonging to a first cell and/or a second downlink carrier belonging to a second cell and/or at least one downlink carrier belonging to another cell, the downlink data is first-class downlink data or second-class downlink data, the first-class downlink data is a physical downlink shared data channel PDSCH scheduled by a physical downlink control channel PDCCH or a PDCCH releasing downlink semi-persistent scheduling SPS, and the second-class downlink data is a PDSCH without PDCCH scheduling.

It should be noted that, in all embodiments of the present invention, the detection result obtained by the UE detecting the downlink data on the downlink carrier includes whether the UE detects that there is downlink data transmission on the downlink carrier and/or whether the detected downlink data transmission is correct.

In the existing CA technology, an eNodeB configures a PCell and an SCell for a UE, and in order to ensure mobility performance of the UE in the SCell, the UE feeds back downlink data carried on a PDSCH transmitted in downlink subframes of all SCs (including the PCell and the SCell) through HARQ-ACK information carried on a PUCCH, usually, a plurality of downlink carriers carry the downlink data in one subframe, and the UE feeds back HARQ-ACK information only on the PUCCH of the PCell, and 2 PUCCH formats (formats) are newly added in a 3GPP protocol to support carrier aggregation: one is PUCCH format1b with channel selection (PUCCH format1b with channel selection): using 2-bit HARQ-ACK information carried by PUCCH format1b, and then determining PUCCH resources for sending the HARQ-ACK information through channel selection, wherein the format only supports the scene that the HARQ-ACK information does not exceed 4 bits and the HARQ-ACK information does not exceed 2 SCs; the other is PUCCH format 3: a scenario that at most 5 SCs are supported and the UE configures a Multiple-Input Multiple-Output (MIMO) technology at each SC may be supported, and the PUCCH format3 may also support a scenario of 2 SCs, specifically, whether PUCCH format3 or PUCCH format1b with channel selection depends on the configuration of the eNodeB.

In this embodiment, the UE detects downlink data sent by the network device on a downlink carrier, and for the UE, the data sent by the network device may be sent on a first downlink carrier of a first cell, may also be sent on a second downlink carrier of a second cell, and may also be sent on downlink carriers of other cells, where the other cells refer to cells other than the first cell and the second cell, and since the UE does not determine which downlink carrier the downlink data is specifically sent through, the UE needs to perform detection on each downlink carrier to prevent data loss. Here, the UE detects Downlink data sent by the network device on a Downlink carrier, and the Downlink data is classified into two types, one is a PDSCH scheduled by a Physical Downlink control channel (PDCCH for short) or a PDCCH for releasing Downlink Semi-persistent scheduling (SPS for short), the former can be considered as a PDSCH in a dynamic scheduling state, each time the network equipment sends downlink data, the resource information of the PDSCH is carried on the PDCCH of the downlink carrier, the latter network equipment sends a PDCCH to the UE when activating the downlink SPS, the UE is informed that the network equipment can periodically send the PDSCH on fixed resources in a subsequent period of time, then the network equipment sends a PDCCH to the UE when releasing the downlink SPS, the UE is informed that the downlink SPS scheduling mode is finished, and the UE needs to feed back a receiving result, namely HARQ-ACK feedback information to the network equipment no matter the UE receives the PDSCH with the PDCCH or receives the PDCCH for releasing the downlink SPS; the other type is PDSCH without PDCCH scheduling, which may be considered as downlink SPS scheduling, and the network device has already allocated PDSCH resources in advance when activating downlink SPS, so that the network device will periodically use the same resources to transmit downlink data in a subsequent period of time, at this time, the UE also detects downlink data at a fixed position, and the PDSCH in this process does not need to be scheduled by PDCCH, and the UE also needs to feed back HARQ-ACK information to the network device.

And 103, determining the format of the PUCCH and the resource index of the PUCCH for sending the HARQ-ACK feedback information according to the detection result.

In this embodiment, the UE may detect downlink data on downlink carriers of other cells or only detect downlink data on the first downlink carrier and/or the second downlink carrier according to a result of detecting downlink data on the downlink carrier. According to the detection result, the UE determines the format and the resource index of the PUCCH for sending the HARQ-ACK feedback information, where the uplink carrier carrying the PUCCH includes the first uplink carrier belonging to the first cell and/or the second uplink carrier belonging to the second cell, that is, after the UE receives downlink data on the downlink carriers of the first cell, the second cell, and/or other cells, there may be two uplink carriers for sending the HARQ-ACK feedback information, that is, the first uplink carrier of the first cell and the second uplink carrier of the second cell, and corresponding PUCCH formats and resource indexes may be determined on the two uplink carriers, so that the PUCCH resource carries the HARQ-ACK feedback information.

In this embodiment, the UE sends HARQ-ACK feedback information on the first uplink carrier and/or the second uplink carrier to perform feedback on downlink data of multiple cells, so as to reduce the load of the uplink carriers, and dynamically determine the sending format and resource of the PUCCH according to the downlink data scheduling condition and indication of each Cell by the eNodeB, so that the transmission resource of the PUCCH format3 channel can be reasonably allocated by using the mechanism, thereby improving the system communication performance.

Further, step 103 of the foregoing method embodiment determines, according to the detection result, a format of the PUCCH and a resource index of the PUCCH for sending the HARQ-ACK feedback information, and a specific implementation method may be: if the downlink data is detected on the at least one downlink carrier belonging to other cells, determining that the format of the PUCCH for sending the HARQ-ACK feedback information is a first format, wherein the first format is PUCCH format 3; determining that a format of the PUCCH for transmitting the HARQ-ACK feedback information is a second format if the downlink data is detected only on the first downlink carrier of the first cell and/or the second downlink carrier of the second cell, where the second format is a PUCCH format 1a or format1 b.

Specifically, if the UE detects downlink data on at least one downlink carrier belonging to another cell, regardless of whether downlink data is detected on the first downlink carrier and the second downlink carrier, determining a format of a PUCCH transmitting HARQ-ACK feedback information as PUCCH format 3; if the UE detects the downlink data only on the first downlink carrier of the first cell and/or the second downlink carrier of the second cell, the UE may determine a format of a PUCCH for transmitting HARQ-ACK feedback information as PUCCH format 1a or PUCCH format1 b. This is a principle that the UE needs to comply with when determining the format of the PUCCH, which is also agreed with the UE and the network device in advance.

Further, before step 101 of the above method embodiment, the method further includes receiving resource configuration information, and determining to send the HARQ-ACK feedback information through PUCCH format3 according to the resource configuration information. Specifically, after receiving the resource configuration information configured by the network device, the UE may obtain, according to the resource configuration information, whether the network device configures PUCCH format3 resource for itself, and whether the UE may use PUCCH format3 when sending HARQ-ACK feedback information.

The technical solution of the embodiment of the method shown in fig. 1 will be described in detail below by using several specific examples.

Fig. 2 is a flowchart of a second embodiment of the uplink control channel transmission method of the present invention, and as shown in fig. 2, the method of this embodiment may include:

step 201, detecting downlink data on at least one downlink carrier belonging to other cells;

the main execution body of the embodiment is UE. The UE detects downlink data sent by the network device on at least one downlink carrier belonging to another cell, where whether the UE detects data on the first downlink carrier and the second downlink carrier is not limited. At least one downlink carrier belonging to another cell indicates that the downlink data detected by the UE may be a downlink carrier of another cell or downlink carriers of multiple other cells, which is not specifically limited herein.

Step 202, determining a format of a PUCCH and a resource index of the PUCCH for transmitting HARQ-ACK feedback information according to the detected downlink carrier of the downlink data and the detected downlink data by using a first scheme.

In this embodiment, the UE detects downlink data on a downlink carrier of another cell, where the downlink data generally refers to a PDSCH scheduled by a PDCCH, and in this case, the UE determines that a format of a PUCCH for transmitting HARQ-ACK feedback information is PUCCH format3, and the first scheme includes:

determining all the PUCCH format3 resources which can be used for sending the HARQ-ACK feedback information in the first cell and the second cell according to the PUCCH format3 resources pre-configured by the network equipment; and acquiring a resource index of the PUCCH for transmitting the HARQ-ACK feedback information according to information of a Transmission Power Control (TPC) command field in the PDCCH of the PDSCH detected on the at least one downlink carrier belonging to the other cell.

Specifically, the network device configures at least two available PUCCH format3 resources for the UE in advance, the UE determines available resource indexes of the PUCCHs according to configuration information of the network device, and then determines resource indexes of the PUCCHs according to information in a PDCCH for scheduling the PDSCH detected on a downlink carrier of another cell, where the information is specifically information of a TPC command field in the PDCCH, the field is a multiplexing field and can be used as uplink power control information or resource index information, the field is used as a resource indication in the PUCCH format3, a PUCCH resource corresponding to the resource index of the PUCCH can be of a first uplink carrier or a second uplink carrier, and the UE determines an uplink carrier for transmitting the PUCCH according to the information of the TPC command field. After determining the format and resource index of the PUCCH, the UE may feed back the detection result of the data on the downlink carrier to the network device through the PUCCH resource, where it should be noted that if the UE detects the downlink data only on the downlink carriers of other cells, the detection result of the downlink carrier only needs to be filled in the corresponding bits in the PUCCH format3, if the UE also detects downlink data on the first downlink carrier and/or the second downlink carrier, the UE feeds back the detection results on all downlink carriers filled in the corresponding bits to the network device in PUCCH format3, thus only one PUCCH resource is needed to carry all detection results, compared with the simultaneous feedback of the PUCCH format3 on the first uplink carrier and the second uplink carrier, the method reduces resources occupied by the feedback and also improves the performance of the PUCCH format 3.

In this embodiment, the UE sends the PUCCH format3 on the first uplink carrier or the second uplink carrier to perform feedback on downlink data of multiple cells, so that not only is the load of the uplink carrier reduced, but also the problem that in the prior art, the uplink carrier of the PCell is overloaded due to the fact that the UE only feeds back HARQ-ACK information on the PUCCH of the PCell is solved, and multiple pieces of information are fed back through one PUCCH resource to improve transmission performance.

Fig. 3 is a flowchart of a third embodiment of an uplink control channel transmission method of the present invention, and as shown in fig. 3, the method of this embodiment may include:

step 301, detecting downlink data on both the first downlink carrier and the second downlink carrier and detecting no downlink data on downlink carriers belonging to other cells;

the main execution body of the embodiment is UE. The UE detecting downlink data on both the first downlink carrier and the second downlink carrier includes: detecting the first type of downlink data sent by the network equipment on the first downlink carrier, and detecting the first type of downlink data sent by the network equipment on the second downlink carrier; or, the second type of downlink data sent by the network device is detected on the first downlink carrier, and the second type of downlink data sent by the network device is detected on the second downlink carrier; or, the first type of downlink data sent by the network device is detected on the first downlink carrier, and the second type of downlink data sent by the network device is detected on the second downlink carrier; or, the second type of downlink data sent by the network device is detected on the first downlink carrier, and the first type of downlink data sent by the network device is detected on the second downlink carrier. In addition, the UE does not detect downlink data on the downlink carrier of any other cell.

Step 302, receiving scheme configuration information sent by the network equipment, and determining whether to adopt a second scheme to determine the format of a PUCCH and the resource index of the PUCCH for sending the HARQ-ACK feedback information according to the scheme configuration information;

in this embodiment, according to the above-mentioned condition that the UE detects downlink data, there may be two methods to determine the format of the PUCCH and the resource index of the PUCCH, where this embodiment is one of the methods, and whether the UE uses the method of this embodiment or not, the network device may notify the UE, that is, send scheme configuration information to the UE, and then the UE determines which scheme is used to determine the format of the PUCCH and the resource index of the PUCCH according to the scheme configuration information. It should be noted that step 302 may not be a necessary step, and is herein directed to a method for implementing the present invention, and is not limited to other forms of implementation.

And step 303, determining a format of a PUCCH and a resource index of the PUCCH for transmitting HARQ-ACK feedback information by using a second scheme according to the detected downlink carrier of the downlink data and the detected downlink data.

In this embodiment, according to the condition that the UE detects downlink data, the UE determines the format of a PUCCH and the resource index of the PUCCH, where the PUCCH is used to send HARQ-ACK feedback information, and the second scheme includes:

determining that the format of the PUCCH for sending the HARQ-ACK feedback information is a second format, wherein the second format is PUCCH format1 b; determining the resource index of the PUCCH of the first uplink carrier or the second uplink carrier according to a pre-configured channel selection scheme, wherein the channel selection scheme comprises the pre-configured HARQ-ACK feedback information, the resource index of the PUCCH and the corresponding relation between the HARQ-ACK feedback information bits.

Further, before determining the resource index of the PUCCH of the first uplink carrier or the second uplink carrier according to a preconfigured channel selection scheme, the method further includes: in the first cell, determining a PUCCH resource available for transmitting the HARQ-ACK feedback information on the first uplink carrier according to the PDCCH in the first type of downlink data, or determining the PUCCH resource available for transmitting the HARQ-ACK feedback information on the first uplink carrier according to at least one PUCCH resource available for feeding back a detection result of the second type of downlink data on the first uplink carrier configured by a network device and information of a TPC command field in the PDCCH indicating activation of the downlink SPS; in the second cell, determining the PUCCH resource available for transmitting the HARQ-ACK feedback information on the second uplink carrier according to the PDCCH in the first type of downlink data, or determining the PUCCH resource available for transmitting the HARQ-ACK feedback information on the second uplink carrier according to at least one PUCCH resource available for feeding back the detection result of the second type of downlink data on the second uplink carrier configured by a network device and information of the TPC command field in the PDCCH indicating activation of the downlink SPS.

Specifically, in the second scheme, the UE may feed back the detection result through a format of the PUCCH format1b, where the specific format may be PUCCH format1b with channel selection, and then the UE determines, according to a channel selection scheme pre-configured by the network device, on which uplink carrier the PUCCH format1b is finally sent, where the content of the channel selection scheme is specified in the 3GPP protocol, which is illustrated in the following example:

step one, the UE determines a PUCCH resources available for sending HARQ-ACK feedback information according to table 1 and the method, where table 1 is a mapping table of TBs and HARQ-ACK feedback information, where the PUCCH resources are resources of a first uplink carrier of a first cell and resources of a second uplink carrier of a second cell, and may be considered as a number of Transport Blocks (TBs) configured in the first cell and a number of TBs configured in the second cell. It should be noted that table 1 is an example, and other tables can be designed according to the same principle.

TABLE 1

Wherein, HARQ-ACK (j) indicates that HARQ-ACK feedback needs to be performed corresponding to TBs in the first cell or the second cell, so that how many PUCCH resources are available for transmitting HARQ-ACK feedback information can be determined according to the number of most supported TB blocks in the transmission mode configured in each cell.

Taking the case of a ═ 3 as an example, the UE may know that there are two available PUCCH resources in the first serving cell and one available PUCCH resource in the second serving cell according to the configuration of the transmission mode when a ═ 3 is used. If the UE detects that the downlink data is the first type of downlink data, the resource index of the PUCCH for transmitting HARQ-ACK (0)By passing

Calculating resource index of PUCCH for acquiring and transmitting HARQ-ACK (1)

By passing

Is obtained by calculation, wherein n_CCEIs in the first downlink carrier or the second downlink carrierOn a wave, a sequence number of a first Control Channel Element (CCE) of the PDCCH of the PDSCH scheduled or a sequence number of a first CCE of the PDCCH releasing the downlink SPS,

configuring parameters corresponding to the carrier wave for the network equipment; if the UE detects the second type downlink data, determining the resource index of the PUCCH for transmitting the HARQ-ACK (0) according to the PUCCH resource which is configured by the network equipment and can be used for feeding back the detection result of the second type downlink data on the first uplink carrier or the second uplink carrier and the latest information of the TPC command field in the PDCCH for indicating the downlink SPS activation

And resource index of PUCCH transmitting HARQ-ACK (1)

By the method, the UE can acquire PUCCH resources corresponding to downlink data in the first cell and the second cell. It should be noted that, in the second scheme, the method for the UE to acquire the PUCCH resources corresponding to the downlink data in the first cell and the second cell is not limited to the above method.

And step two, the UE determines PUCCH resources for finally sending the HARQ-ACK feedback information according to tables 2-4 and the result of detecting the downlink data, wherein the table 2 is a channel selection configuration table when A is 2, the table 3 is a channel selection configuration table when A is 3, and the table 4 is a channel selection configuration table when A is 4.

TABLE 2

TABLE 3

TABLE 4

Taking the case of a being 3 shown in table 3 as an example, if the UE detects TB1 and TB2 of the first cell and TB1 of the second cell, and all three TBs check correctly, according to the configuration of the second row in table 3, two HARQ-ACK bits b (0) b (1) in PUCCH format1b may be padded with 1, 1, and HARQ-ACK feedback information is transmitted through that PUCCH resource corresponding to TB2 of the first cell; if the UE detects TB1 and TB2 of the first cell and TB1 of the second cell, and TB1 and TB2 of the first cell check correctly, and TB1 of the second cell check incorrectly, according to the configuration of the sixth row in table 3, two HARQ-ACK bits b (0) b (1) in PUCCH format1b may be padded with 1, 1, and HARQ-ACK feedback information is transmitted through the PUCCH resource corresponding to TB1 of the first cell, and the resource index of the PUCCH has been calculated through the above method.

In this embodiment, the UE sends the pucchfmat 1b on the first uplink carrier or the second uplink carrier through the channel selection scheme to feed back the downlink data of multiple cells, which not only reduces the load of the uplink carrier, but also solves the problem in the prior art that the uplink carrier of the PCell is overloaded due to the fact that the UE only feeds back HARQ-ACK information on the PUCCH of the PCell, and feeds back the detection result of the downlink data to the network device once to improve the transmission performance by combining uplink carrier resources and HARQ-ACK feedback information.

Fig. 4 is a flowchart of a fourth embodiment of the uplink control channel transmission method of the present invention, as shown in fig. 4, the method of this embodiment may include:

step 401, detecting a first type of downlink data on a first downlink carrier;

the main execution body of the embodiment is UE. The UE detects a first type of downlink data on the first downlink carrier, that is, the UE detects a PDSCH scheduled by a PDCCH or a PDCCH releasing a downlink semi-SPS on the first downlink carrier of the first cell, and for the two types of data, the UE needs to feed back a detection result to the network device.

Step 402, determining the format of the PUCCH and the resource index of the PUCCH for sending the HARQ-ACK feedback information by adopting a third scheme according to the first downlink carrier and the first type of downlink data.

In this embodiment, the UE detects the first type of downlink data, and determines a format of a PUCCH and a resource index of the PUCCH, where the PUCCH is used to send HARQ-ACK feedback information, using a third scheme, where the third scheme includes:

determining that the format of the PUCCH for sending the HARQ-ACK feedback information is a third format or a second format according to the PDCCH in the first type of downlink data, wherein the third format is PUCCH format 1a, and the second format is PUCCH format1 b;

according to the formulaCalculating to obtain a resource index of the PUCCH corresponding to a first antenna port

Wherein n is_CCEA sequence number of a first Control Channel Element (CCE) of the PDCCH of the PDSCH scheduled or a sequence number of a first CCE of the PDCCH releasing downlink SPS on the first downlink carrier or the second downlink carrier,parameters configured for the network device;

if the network equipment uses two antennas, according to the formula

Calculating to obtain a resource index of the PUCCH corresponding to a second antenna port

Specifically, in the third scheme, the UE may feed back the detection result through the format of PUCCH format 1a or PUCCH format1b, andPUCCH resources used for feeding back the detection result by the UE are related to the number of antennas, and the resource index of the PUCCH corresponding to the first antenna port is obtained by calculation according to formula (1), where n is n in this embodiment_CCEThe sequence number of a first Control Channel Element (CCE) of a PDCCH for a scheduled PDSCH or a sequence number of a first CCE of a PDCCH for releasing a downlink SPS is set on a first downlink carrier. If two antennas are used, the resource index of the PUCCH corresponding to the second antenna port is calculated by equation (2). And the UE detects the first type of downlink data on the first downlink carrier and feeds back the first type of downlink data through PUCCH resources on the first uplink carrier.

Further, the UE detects that the network device sends the first type of downlink data on the second downlink carrier; and determining the format of the PUCCH and the resource index of the PUCCH for sending the HARQ-ACK feedback information by adopting a third scheme according to the second downlink carrier and the first type of downlink data.

Fig. 5 is a flowchart of a fifth embodiment of the uplink control channel transmission method of the present invention, and as shown in fig. 5, the method of this embodiment may include:

step 501, detecting second type downlink data on a first downlink carrier;

the main execution body of the embodiment is UE. The UE detects a second type of downlink data on the first downlink carrier, that is, a PDSCH without PDCCH scheduling, which is generally downlink data transmitted in a downlink SPS scheduling manner, and the network device transmits the PDCCH only when activating the downlink SPS until releasing the downlink SPS, and during this period, resources used by the PDSCH are scheduled by the PDCCH transmitted when activating the downlink SPS for the latest time, and the resources are relatively fixed.

And 502, determining the format of the PUCCH and the resource index of the PUCCH for sending the HARQ-ACK feedback information by adopting a fourth scheme according to the first downlink carrier and the second type downlink data.

In this embodiment, the UE detects the second type of downlink data, and determines a format of a PUCCH and a resource index of the PUCCH, where the PUCCH is used to send HARQ-ACK feedback information, in a fourth scheme, where the fourth scheme includes:

determining a format of the PUCCH transmitting the HARQ-ACK feedback information as the third format or the second format; determining a resource index of the PUCCH of the first uplink carrier or the second uplink carrier corresponding to a first antenna port according to at least one PUCCH resource which is configured by network equipment and can be used for feeding back a detection result of the second type of downlink data on the first uplink carrier or the second uplink carrier and information of the latest TPC command field in the PDCCH for indicating the downlink SPS activation

And a resource index of the PUCCH corresponding to the first uplink carrier or the second uplink carrier of a second antenna port

Specifically, in the fourth scheme, the UE may feed back the detection result in the format of the PUCCH format 1a or PUCCH format1b, and the PUCCH resource used by the UE to feed back the detection result is also related to the number of antennas, and the UE finally determines the resource indexes of the PUCCH corresponding to the first antenna port and the second antenna port according to information of the TPC command field in the PDCCH sent when the network device activates the downlink SPS the latest time, in combination with the PUCCH resource configured by the network device and available for feeding back the detection result of the second type of downlink data on the first uplink carrier. And the UE detects the second type of downlink data on the first downlink carrier and feeds back the second type of downlink data through PUCCH resources on the first uplink carrier.

Further, the UE detects that the network device sends the second type downlink data on the second downlink carrier; and determining the format of the PUCCH and the resource index of the PUCCH for sending the HARQ-ACK feedback information by adopting a fourth scheme according to the second downlink carrier and the second type downlink data.

In the embodiments shown in fig. 4 and fig. 5, the UE determines the format and the resource index of the PUCCH for sending the HARQ-ACK feedback information on which downlink carrier the UE detects downlink data on the uplink carrier corresponding to the downlink carrier according to a corresponding scheme, that is, the UE feeds back the downlink data on the first uplink carrier when detecting the downlink data on the first downlink carrier, and feeds back the downlink data on the second uplink carrier when detecting the downlink data on the second downlink carrier, and the schemes for calculating the resource index of the PUCCH are different according to different types of the downlink data, so that the UE does not need to perform feedback on one uplink carrier but performs load balancing, thereby solving the problem that the uplink carrier of the PCell is overloaded due to the fact that the UE only feeds back the HARQ-ACK information on the PUCCH of the PCell in the prior art, and improving transmission performance.

Further, in the embodiments shown in fig. 4 and fig. 5, the UE detects downlink data only on the first downlink carrier or the second downlink carrier, and similarly, the method is applicable to the UE detecting downlink data on the first downlink carrier and the second downlink carrier simultaneously, and the UE performs feedback on the uplink carrier corresponding to the downlink carrier according to the type of the detected downlink data.

Further, in the method embodiments shown in fig. 1 to fig. 5, after determining the format of the PUCCH and the resource index of the PUCCH to send the HARQ-ACK feedback information, the UE needs to determine the power control information of the PUCCH, and the implementation method may be: if the HARQ-ACK feedback information is determined to be sent on the first uplink carrier, acquiring power control information of the PUCCH according to the information of the TPC command field in the PDCCH on the first downlink carrier; and if the HARQ-ACK feedback information is determined to be sent on the second uplink carrier, acquiring power control information of the PUCCH according to the information of the TPC command field in the PDCCH on the second downlink carrier.

Specifically, after determining the format and resource index of the PUCCH for transmitting HARQ-ACK feedback information, the UE needs to perform power control on the PUCCH to ensure that the network device can receive the PUCCH and decode the PUCCH correctly, where the UE performs power control according to information from a TPC command field in a PDCCH of detected downlink data, and if the UE is first-type downlink data, the PDCCH is a PDCCH for scheduling a PDSCH, or releases a PDCCH for downlink SPS transmission for the network device, and if the UE is second-type downlink data, the PDCCH indicates a PDCCH activated for downlink SPS for a latest network device. The UE determines which uplink carrier to send the HARQ-ACK feedback information, and then according to the information of the TPC command field in the PDCCH sent on the downlink carrier corresponding to the uplink carrier.

In this way, after the eNodeB sends downlink data to the UE on the downlink carrier, regardless of the detection result of the UE on each carrier, and regardless of whether the UE determines that the format of the PUCCH channel feeding back the HARQ-ACK is PUCCH format3, PUCCH format 1a, or PUCCH format1b by using the scheme, the eNodeB controls the transmit power of the uplink carrier PUCCH of the corresponding cell on the downlink carrier by using the same TPC command word, thereby solving the problem of PUCCH power control error.

Fig. 6 is a flowchart of a sixth embodiment of an uplink control channel transmission method of the present invention, as shown in fig. 6, the method of this embodiment may include:

601, configuring a first uplink carrier and a second uplink carrier of a Physical Uplink Control Channel (PUCCH) for sending hybrid automatic repeat request (HARQ-ACK) feedback information for User Equipment (UE);

the execution subject of this embodiment is a network device. The network device needs to configure which is the first uplink carrier and which is the second uplink carrier for the UE, and the first cell corresponding to the first uplink carrier and the second cell corresponding to the second uplink carrier, so that the network device and the UE can accurately acquire the PUCCH resource for transmitting the HARQ-ACK feedback information in subsequent operations.

Step 602, sending downlink data to the UE through a downlink carrier, and determining the PUCCH resource that the UE can use to send the HARQ-ACK feedback information;

in this embodiment, the downlink carriers include a first downlink carrier belonging to a first cell and/or a second downlink carrier belonging to a second cell and/or at least one downlink carrier belonging to another cell, the downlink data is first-class downlink data or second-class downlink data, the first-class downlink data is a physical downlink shared data channel PDSCH scheduled by a physical downlink control channel PDCCH or a PDCCH releasing downlink semi-persistent scheduling SPS, and the second-class downlink data is a PDSCH without PDCCH scheduling. The network equipment sends downlink data to the UE, the downlink carriers comprise a first downlink carrier of a first cell, a second downlink carrier of a second cell and downlink carriers of other cells, the downlink data sent by the network equipment are divided into two types, one type is a PDSCH scheduled by a PDCCH or a PDCCH releasing downlink SPS, the former type can be considered as a dynamic scheduling state, each time the network equipment sends the downlink data, the PDCCH of the downlink carrier carries resource information of an uplink PDSCH, the latter type of network equipment sends a PDCCH to the UE when activating the downlink SPS, the UE is informed that the network equipment sends the PDSCH according to fixed resources in a subsequent period of time, then the network equipment sends a PDCCH to the UE when releasing the downlink SPS, and the UE is informed that a downlink SPS scheduling mode is finished; the other type is PDSCH without PDCCH scheduling, which may be considered as this type of data, that is, downlink SPS scheduling, and the network device has already allocated resources of PDSCH in advance when activating downlink SPS, so that the network device will use the same resources to transmit downlink data in a subsequent period of time. After the network device sends downlink data, it needs to determine PUCCH resources for feeding back HARQ-ACK information by the UE for the downlink data, for example, the network device sends downlink data to the UE on both the first downlink carrier and the second downlink carrier, and the network device is not aware of which uplink carrier the UE specifically sends HARQ-ACK feedback information on, so the network device considers that the UE may send HARQ-ACK feedback information on both the first uplink carrier and the second uplink carrier, and therefore the PUCCH resources determined by the network device include the first uplink carrier and the second uplink carrier.

Step 603, detecting the HARQ-ACK feedback information sent by the UE on the uplink carrier according to the determined PUCCH resource.

In this embodiment, the uplink carrier includes a first uplink carrier belonging to the first cell and/or a second uplink carrier belonging to the second cell. The network device detects the HARQ-ACK feedback information sent by the UE according to the determined PUCCH resources that the UE may send the HARQ-ACK feedback information, specifically, the network device detects the HARQ-ACK feedback information one by one on the determined PUCCH resources, where at least one PUCCH resource is present, and as long as the UE detects any downlink data of two types of data on any carrier, the network device performs feedback on one of the PUCCH resources, and is responsible for detecting and analyzing the feedback information to determine the next operation. Here, the uplink carriers that the UE configured by the network device can use to send HARQ-ACK feedback information include a first uplink carrier and a second uplink carrier.

In this embodiment, the network device sends downlink data to the UE on the downlink carrier, and configures that the UE can send HARQ-ACK feedback information on the first uplink carrier and/or the second uplink carrier to perform feedback on downlink data of multiple cells, so as to reduce the load of the uplink carrier, solve the problem in the prior art that the load of the uplink carrier of the PCell is too heavy because the UE only feeds back HARQ-ACK information on the PUCCH of the PCell, and improve the communication performance.

Further, before step 601 in the above method embodiment, the method further includes configuring, in advance, for the UE, that a format of the PUCCH for sending the HARQ-ACK feedback information is PUCCH format3 and the UE sends channel resources of the PUCCH format 3. Specifically, before starting downlink scheduling, the network device pre-configures the UE to perform HARQ-ACK feedback according to the format of the PUCCH format3, and pre-allocates a channel resource for sending the PUCCH format3 to the UE, which is a pre-configured process, and in a subsequent specific downlink data sending process, the UE may specifically adjust the resource for sending the PUCCH according to the PDCCH in the downlink data.

Further, step 601 of the foregoing method embodiment sends downlink data to a user equipment UE through a downlink carrier, and determines a physical uplink control channel PUCCH resource that the UE can use to send HARQ-ACK feedback information, where the specific implementation method may be: by N₁Transmitting the downlink data to the UE on the downlink carrier, and then assuming that the UE is in N₂Detecting the downlink data on each downlink carrier, and determining N₃The PUCCH resource, N, available to the UE for transmitting the HARQ-ACK feedback information₁、N₂And N₃Is a natural number, and

the method comprises the following steps: according to the determination N₃And the PUCCH resource which can be used by the UE for sending the HARQ-ACK feedback information detects the HARQ-ACK feedback information sent by the UE on an uplink carrier.

Specifically, the network device may pass N₁One downlink carrier transmits downlink data to the UE, where N is₁The number of each downlink carrier is not limited, and may be 0, or a natural number greater than 0, and is not limited specifically here. The network device then assumes that the UE is actually at N₂For example, the network device sends downlink data to the UE on the first downlink carrier and the second downlink carrier simultaneously, it may be assumed that the UE detects downlink data only on the first downlink carrier, or it may be assumed that the UE detects downlink data on both downlink carriers, because data may be lost in the transmission process or signals are too weak to detect data by the UE, which are unknown to the network device, the network device assumes various detection results, and determines N according to the assumed conditions₃The PUCCH resources that the UE can use to send HARQ-ACK feedback information, here

That is, the network device assumes that the UE is at N₂Detecting downlink data on each downlink carrier to determine N₃In the PUCCH resources, each PUCCH resource is not necessarily required to be detected when the network device detects the PUCCH resource, and it may happen that the network device detects HARQ-ACK feedback information in the first PUCCH resource, and the detection is not required to be continued.

The following describes in detail the technical solution of the embodiment of the method shown in fig. 6, using several specific embodiments.

Fig. 7 is a flowchart of a seventh embodiment of an uplink control channel transmission method according to the present invention, and as shown in fig. 7, the method of this embodiment may include:

step 701, configuring a PUCCH format for sending HARQ-ACK feedback information for the UE in advance as PUCCH format3 and sending channel resources of the PUCCH format3 by the UE;

the execution subject of this embodiment is a network device. Before starting downlink scheduling, the network device configures channel resources for transmitting the PUCCH format3 for the UE in advance. It should be well noted that this is a pre-configured process, and in the subsequent specific downlink data transmission process, the UE may specifically adjust the format of the transmission PUCCH according to the PDCCH in the downlink data.

Step 702, configuring a first uplink carrier and a second uplink carrier of a PUCCH (physical uplink control channel) for sending HARQ-ACK feedback information for UE (user equipment);

in this embodiment, the network device configures, for the UE, which one of the first uplink carriers and the second uplink carrier is used for sending the PUCCH, and the first cell corresponding to the first uplink carrier and the second cell corresponding to the second uplink carrier, so that the network device and the UE can accurately obtain the PUCCH resource for sending the HARQ-ACK feedback information in subsequent operations.

Step 703, sending downlink data to the UE on at least one downlink carrier belonging to another cell, and carrying a resource index of PUCCH format3 for sending HARQ-ACK feedback information by the UE in information of a TPC command field in a PDCCH of the downlink data on the at least one downlink carrier belonging to another cell;

in this embodiment, the network device sends downlink data to the UE on at least one downlink carrier belonging to another cell, the other cells are cells other than the first cell and the second cell, the network device transmits downlink data to the UE on the other cells, in this case, according to a feedback scheme pre-agreed by the network equipment and the UE, the UE performs HARQ-ACK feedback through PUCCH format3, therefore, the network device carries the resource index of the PUCCH format3 for the UE to send HARQ-ACK feedback information in the information of the TPC command field in the PDCCH of the downlink data, where the resource index is a resource index on the first uplink carrier or the second uplink carrier, that is, the network device sends downlink data to the UE in other cells, and ideally, the UE detects the downlink data and still sends HARQ-ACK feedback information through the first uplink carrier or the second uplink carrier. It should be noted that, in this embodiment, the network device sends downlink data to the UE on at least one downlink carrier belonging to another cell, and in addition, the network device may also send downlink data to the UE on the first downlink carrier and/or the second downlink carrier, which is not limited specifically here.

Step 704, assuming that the UE detects downlink data on the at least one downlink carrier belonging to the other cell, determining, by using a first scheme, a PUCCH resource for the UE to send HARQ-ACK feedback information on the first uplink carrier or the second uplink carrier through PUCCH format 3;

in this embodiment, assuming that the UE detects downlink data on downlink carriers of other cells, the network device determines PUCCH format3 resources for the UE to send HARQ-ACK feedback information by using a first scheme, where the first scheme includes:

and determining the resource index of the PUCCH format3 for the UE to send the HARQ-ACK feedback information according to the information of the TPC command field in the PDCCH of the downlink data on the at least one downlink carrier belonging to the other cell.

Specifically, the network device already carries the resource index of the PUCCH in the downlink data on at least one downlink carrier belonging to another cell, that is, the information of the TPC command field in the PDCCH of the downlink data, and then determines the PUCCH resource for the UE to send the HARQ-ACK feedback information according to the information of the TPC command field.

Step 705, detecting HARQ-ACK feedback information sent by the UE on an uplink carrier according to the determined PUCCH resource.

In this embodiment, the network device detects HARQ-ACK feedback information sent by the UE according to the PUCCH resource determined in step 704.

In this embodiment, the network device sends downlink data to the UE on a downlink carrier of another cell, and carries a resource index of a PUCCH format3 for sending HARQ-ACK feedback information by the UE in information of a TPC command field in a PDCCH of the downlink data, specifies that the UE is to use a first uplink carrier or a second uplink carrier, and then detects feedback information of the UE on the PUCCH resource.

Further, after step 704 of the foregoing method embodiment, the method further includes that the network device carries, in the information of the TPC command field in the PDCCH in the downlink data on the first downlink carrier, power control information of the PUCCH where the UE sends the HARQ-ACK feedback information on the first uplink carrier; and carrying power control information of the PUCCH, which is used for the UE to send the HARQ-ACK feedback information on the second uplink carrier, in information of the TPC command field in the PDCCH in the downlink data on the second downlink carrier. Specifically, if the network device transmits first type downlink data on a downlink carrier, the network device carries power control information in a PDCCH for scheduling a PDSCH or a PDCCH for releasing a downlink SPS, and if the network device transmits second type downlink data on the downlink carrier, the network device activates the power control information carried in the PDCCH for the downlink SPS through a latest instruction, in a special case, that is, the network device does not transmit downlink data on the first downlink carrier or the second downlink carrier, but transmits PDCCHs with power control instructions on the two downlink carriers, the network device indicates the power control information to the UE through the PDCCH, and the UE acquires the power control information of the PUCCH using information of a TPC command field of the PDCCH on which corresponding uplink carrier the UE transmits HARQ-ACK feedback information. It should be noted that, no matter how the network device sends downlink data to the UE, the power control information is indicated to the UE through the above method, which is not limited herein. Thereby solving the problem of possible PUCCH power control errors

Further, in steps 703 to 705 of the above method embodiment, there may be another situation, where the network device determines, according to a situation that the UE detects downlink data, a PUCCH resource for the UE to send HARQ-ACK feedback information by using a corresponding scheme, specifically, there are the following situations:

a first scheme, in which a network device determines, on the assumption that the UE detects the downlink data on the first downlink carrier and the second downlink carrier at the same time and does not detect the downlink data on downlink carriers belonging to other cells, the PUCCH resource for transmitting the HARQ-ACK feedback information on the first uplink carrier or the second uplink carrier through PUCCH format1b, includes:

in the first cell, determining a PUCCH resource used by the UE for sending the HARQ-ACK feedback information according to the PDCCH in the first type of downlink data, or determining a PUCCH resource used by the UE for sending HARQ-ACK feedback information in the first cell according to at least one PUCCH resource which is configured on the first uplink carrier for the UE and can be used for feeding back a detection result of the second type of downlink data and the PUCCH resource which is configured in the latest information indicating a TPC command field in the PDCCH activated by the downlink SPS and used for sending the HARQ-ACK feedback information by the UE; in the second cell, determining a PUCCH resource used by the UE for sending the HARQ-ACK feedback information according to the PDCCH in the first type of downlink data, or determining a PUCCH resource used by the UE for sending the HARQ-ACK feedback information in the second cell according to at least one PUCCH resource which is configured on the second uplink carrier for the UE and can be used for feeding back a detection result of the second type of downlink data and the PUCCH resource which is configured in the latest information indicating a TPC command field in the PDCCH activated by the downlink SPS and used for sending the HARQ-ACK feedback information by the UE; configuring a channel selection scheme for the UE, and determining a resource index of the PUCCH format1b for the UE to send the HARQ-ACK feedback information on the first uplink carrier or the second uplink carrier according to the channel selection scheme, wherein the channel selection scheme comprises a pre-configured corresponding relationship among the HARQ-ACK feedback information, the resource index of the uplink carrier, and the HARQ-ACK feedback information bits.

In this case, the network device configures a channel selection scheme for the UE, and a specific implementation method of the channel selection scheme is shown in the method embodiment shown in fig. 3, for the network device, since a detection result of the UE is not known and it is also not determined on which uplink carrier the UE feeds back information, but the network device may determine a transmission mode configured on the first cell and the second cell and a TB number supported by the transmission mode, so that the corresponding network device may calculate a PUCCH format1b resource index corresponding to each TB number, and the network device detects feedback information of the UE one by one according to the PUCCH format1b resource indexes on the first uplink carrier or the second uplink carrier.

Second, assuming that the UE detects the first type of downlink data on the first downlink carrier, determining, by using a third scheme, the PUCCH resource where the UE sends the HARQ-ACK feedback information on the first uplink carrier through a PUCCH format 1a or a PUCCH format1b, where the third scheme includes:

determining the PUCCH resource for the UE to send the HARQ-ACK feedback information according to the resource used by the PDCCH of the downlink data;

according to formula (1)

Calculating to obtain a resource index of the PUCCH corresponding to a first antenna portWherein n is_CCEA sequence number of a first Control Channel Element (CCE) of the PDCCH of the PDSCH scheduled or a sequence number of a first CCE of the PDCCH releasing downlink SPS on the first downlink carrier or the second downlink carrier,

parameters configured for the network device;

if the network device uses two antennas, according to the formula (2)

Specifically, the network device calculates the resource index of the PUCCH where the UE feeds back information on the first uplink carrier by the above method, assuming that the UE detects the first type of downlink data on the first downlink carrier. Optionally, if the network device assumes that the UE detects the first type of downlink data on the second downlink carrier, the network device may also calculate the resource index of the PUCCH where the UE feeds back information on the second uplink carrier by using the above method

Thirdly, assuming that the UE detects the second type of downlink data on the first downlink carrier, determining, by using a fourth scheme, the PUCCH resource for transmitting the HARQ-ACK feedback information on the first uplink carrier by using a PUCCH format 1a or a PUCCH format1b, where the fourth scheme includes:

determining the PUCCH resources used for feeding back the detection result of the second type of downlink data on the first uplink carrier or the second uplink carrier by the UE; determining that the HARQ-ACK feedback information sent by the UE corresponds to the resource index of the PUCCH of the first uplink carrier or the second uplink carrier of a first antenna port according to the latest information of the TPC command field in the PDCCH for indicating the downlink SPS activation

Specifically, the network device calculates the resource index of the PUCCH where the UE feeds back information on the first uplink carrier by the above method, assuming that the UE detects the second type downlink data on the first downlink carrier. Optionally, if the network device assumes that the UE detects the second type of downlink data on the second downlink carrier, the network device may also calculate the resource index of the PUCCH where the UE feeds back information on the second uplink carrier by using the above method.

Fig. 8 is a schematic structural diagram of a UE according to a first embodiment of the present invention, and as shown in fig. 8, the apparatus of this embodiment may include: the system comprises a carrier determining module 11, a detecting module 12 and a resource determining module 13, wherein the carrier determining module 11 is configured to determine a first uplink carrier and a second uplink carrier of a physical uplink control channel PUCCH, which are used for sending hybrid automatic repeat request HARQ-ACK feedback information, wherein the first uplink carrier corresponds to a first cell, and the second uplink carrier corresponds to a second cell; a detection module 12, configured to detect downlink data on a downlink carrier to obtain a detection result, where the downlink carrier includes a first downlink carrier belonging to a first cell and/or a second downlink carrier belonging to a second cell and/or at least one downlink carrier belonging to another cell, the downlink data is first type of downlink data or second type of downlink data, the first type of downlink data is a physical downlink shared data channel PDSCH scheduled by a physical downlink control channel PDCCH or a PDCCH releasing a downlink semi-persistent scheduling SPS, and the second type of downlink data is a PDSCH without PDCCH scheduling; and a resource determining module 12, configured to determine, according to the detection result, a format of the PUCCH and a resource index of the PUCCH, where the PUCCH and the resource index are used to send the HARQ-ACK feedback information.

Further, the resource determining module 13 is specifically configured to determine that a format of the PUCCH that sends the HARQ-ACK feedback information is a first format if the downlink data is detected on the at least one downlink carrier that belongs to the other cell, where the first format is a PUCCH format 3; determining that a format of the PUCCH for transmitting the HARQ-ACK feedback information is a second format if the downlink data is detected only on the first downlink carrier of the first cell and/or the second downlink carrier of the second cell, where the second format is PUCCH format 1a or PUCCH format1 b.

The apparatus of this embodiment may be used to implement the technical solution of the method embodiment shown in fig. 1, and the implementation principle and the technical effect are similar, which are not described herein again.

Fig. 9 is a schematic structural diagram of a second embodiment of the UE of the present invention, and as shown in fig. 9, the apparatus of this embodiment may further include, on the basis of the apparatus structure shown in fig. 8: a format determining module 21, a scheme configuration receiving module 22 and a power control module 23.

A format determining module 21, configured to receive resource configuration information, and determine, according to the resource configuration information, to send the HARQ-ACK feedback information through pucchfmat 3.

Further, the detecting module 12 is specifically configured to detect downlink data on the at least one downlink carrier belonging to the other cell; the resource determining module 13 is specifically configured to determine, according to the detected downlink carrier of the downlink data and the detected downlink data, a format of the PUCCH and a resource index of the PUCCH, which are used to send the HARQ-ACK feedback information, by using a first scheme. The first aspect includes: determining all the PUCCH format3 resources which can be used for sending the HARQ-ACK feedback information in the first cell and the second cell according to the PUCCH format3 resources pre-configured by the network equipment; and acquiring the resource index of the PUCCH for sending the HARQ-ACK feedback information according to the information of the Transmission Power Control (TPC) command field in the PDCCH of the PDSCH detected on the at least one downlink carrier belonging to other cells.

Further, the detecting module 12 is specifically configured to detect the first type of downlink data on the first downlink carrier, detect the first type of downlink data on the second downlink carrier, and detect no downlink data on downlink carriers belonging to other cells; or, the second type of downlink data is detected on the first downlink carrier, the second type of downlink data is detected on the second downlink carrier, and no downlink data is detected on downlink carriers belonging to other cells; or, the first type of downlink data is detected on the first downlink carrier, the second type of downlink data is detected on the second downlink carrier, and no downlink data is detected on downlink carriers belonging to other cells; or, the second type of downlink data is detected on the first downlink carrier, the first type of downlink data is detected on the second downlink carrier, and no downlink data is detected on downlink carriers belonging to other cells; a scheme configuration receiving module 22, configured to receive scheme configuration information sent by a network device, and determine whether to determine, according to the scheme configuration information, a format of the PUCCH and a resource index of the PUCCH, where the PUCCH and the PUCCH are sent by using the second scheme; the resource determining module 13 is specifically configured to determine, according to the detected downlink carrier of the downlink data and the detected downlink data, a format of the PUCCH and a resource index of the PUCCH, which are used to send the HARQ-ACK feedback information, by using a second scheme. The second aspect, including: determining that the format of the PUCCH for sending the HARQ-ACK feedback information is a second format, wherein the second format is PUCCH format1 b; in the first cell, determining a PUCCH resource available for transmitting the HARQ-ACK feedback information on the first uplink carrier according to the PDCCH in the first type of downlink data, or determining the PUCCH resource available for transmitting the HARQ-ACK feedback information on the first uplink carrier according to at least one PUCCH resource available for feeding back a detection result of the second type of downlink data on the first uplink carrier configured by a network device and information of a TPC command field in the PDCCH indicating activation of the downlink SPS; in the second cell, determining the PUCCH resource available for transmitting the HARQ-ACK feedback information on the second uplink carrier according to the PDCCH in the first type of downlink data, or determining the PUCCH resource available for transmitting the HARQ-ACK feedback information on the second uplink carrier according to at least one PUCCH resource available for feeding back a detection result of the second type of downlink data on the second uplink carrier configured by a network device and information of the TPC command field in the PDCCH indicating activation of the downlink SPS; determining the resource index of the PUCCH of the first uplink carrier or the second uplink carrier according to a pre-configured channel selection scheme, wherein the channel selection scheme comprises the pre-configured HARQ-ACK feedback information, the resource index of the PUCCH and the corresponding relation between the HARQ-ACK feedback information bits.

Further, the detecting module 12 is specifically configured to detect the first type of downlink data on the first downlink carrier; the resource determining module 13 is specifically configured to determine, according to the first downlink carrier and the first type of downlink data, a format of the PUCCH and a resource index of the PUCCH, where the PUCCH and the resource index are used to send the HARQ-ACK feedback information, in a third scheme. The third aspect, includes: determining that the format of the PUCCH for sending the HARQ-ACK feedback information is a third format or a second format according to the PDCCH in the first type of downlink data, wherein the third format is PUCCH format 1a, and the second format is PUCCH format1 b; according to the formula

Calculating to obtain a resource index of the PUCCH corresponding to a first antenna port

Wherein n is_CCEA sequence number of a first Control Channel Element (CCE) of the PDCCH of the PDSCH scheduled or a sequence number of a first CCE of the PDCCH releasing downlink SPS on the first downlink carrier or the second downlink carrier,

parameters configured for the network device;

if the network equipment uses two antennas, according to the formula

Further, the detecting module 12 is specifically configured to detect the second type of downlink data on the first downlink carrier; a resource determining module 13, configured to determine, according to the first downlink carrier and the second type of downlink data, by using a fourth schemeAnd transmitting the format of the PUCCH and the resource index of the PUCCH of the HARQ-ACK feedback information. The fourth aspect, including: determining a format of the PUCCH transmitting the HARQ-ACK feedback information as the third format or the second format; determining a resource index of the PUCCH of the first uplink carrier or the second uplink carrier corresponding to a first antenna port according to at least one PUCCH resource which is configured by network equipment and can be used for feeding back a detection result of the second type of downlink data on the first uplink carrier or the second uplink carrier and information of the latest TPC command field in the PDCCH for indicating the downlink SPS activation

Further, the detecting module 12 is specifically configured to detect the first type of downlink data on the second downlink carrier; the resource determining module 13 is specifically configured to determine, according to the second downlink carrier and the first type of downlink data, a format of the PUCCH and a resource index of the PUCCH, where the PUCCH and the resource index are used to send HARQ-ACK feedback information, by using the third scheme.

Further, the detecting module 12 is specifically configured to detect the second type of downlink data on the second downlink carrier; the resource determining module 13 is specifically configured to determine, according to the second downlink carrier and the second type of downlink data, a format of the PUCCH, a resource index of the PUCCH, and power control information of the PUCCH, where the PUCCH is used to send HARQ-ACK feedback information, by using the fourth scheme.

Further, the power control module 23 is configured to, if it is determined that the HARQ-ACK feedback information is sent on the first uplink carrier, obtain power control information of the PUCCH according to information of the TPC command field in the PDCCH on the first downlink carrier; and if the HARQ-ACK feedback information is determined to be sent on the second uplink carrier, acquiring power control information of the PUCCH according to the information of the TPC command field in the PDCCH on the second downlink carrier.

The apparatus of this embodiment may be used to implement the technical solution of any one of the method embodiments in fig. 1 to 5, and the implementation principle and the technical effect are similar, which are not described herein again.

Fig. 10 is a schematic structural diagram of a first embodiment of a network device in the present invention, and as shown in fig. 10, the apparatus of this embodiment may include: the system comprises a carrier configuration module 11, a sending determination module 12 and a detection module 13, wherein the carrier configuration module 11 is configured to configure, for a user equipment UE, a first uplink carrier and a second uplink carrier of a physical uplink control channel PUCCH for sending hybrid automatic repeat request HARQ-ACK feedback information, where the first uplink carrier corresponds to a first cell and the second uplink carrier corresponds to a second cell; a sending determining module 12, configured to send downlink data to the UE through a downlink carrier, and determine the PUCCH resource that the UE can use to send the HARQ-ACK feedback information, where the downlink carrier includes a first downlink carrier belonging to a first cell and/or a second downlink carrier belonging to a second cell and/or at least one downlink carrier belonging to another cell, the downlink data is first type of downlink data or second type of downlink data, the first type of downlink data is a physical downlink shared data channel PDSCH scheduled by a physical downlink control channel PDCCH or a PDCCH releasing downlink semi-persistent scheduling SPS, and the second type of downlink data is a PDSCH without PDCCH scheduling; a detecting module 12, configured to detect, according to the determined PUCCH resource, the HARQ-ACK feedback information sent by the UE on an uplink carrier.

The apparatus of this embodiment may be used to implement the technical solution of the method embodiment shown in fig. 6, and the implementation principle and the technical effect are similar, which are not described herein again.

Fig. 11 is a schematic structural diagram of a second embodiment of a network device in the present invention, and as shown in fig. 11, the apparatus in this embodiment may further include, on the basis of the apparatus structure shown in fig. 10: a resource configuration module 21 and a power control module 22, where the resource configuration module 21 is configured to configure, in advance, the PUCCH format for sending the HARQ-ACK feedback information for the UE to be PUCCH format3 and the UE sends channel resources of the PUCCH format 3; a power control module 22, configured to carry, in the information of the TPC command field in the PDCCH in the downlink data on the first downlink carrier, power control information of the PUCCH that the UE sends the HARQ-ACK feedback information on the first uplink carrier; and carrying power control information of the PUCCH, which is used for the UE to send the HARQ-ACK feedback information on the second uplink carrier, in information of the TPC command field in the PDCCH in the downlink data on the second downlink carrier.

Further, a transmission determination module 12, in particular for passing N₁Transmitting the downlink data to the UE via the downlink carriers, and then determining N3 PUCCH resources available for transmitting the HARQ-ACK feedback information by the UE assuming that the UE detects the downlink data on N2 downlink carriers, wherein the N₁、N₂And N₃Is a natural number, and N₂≤N₁，

(ii) a A detection module 13, specifically configured to determine N according to the above₃And the PUCCH resource which can be used by the UE for sending the HARQ-ACK feedback information detects the HARQ-ACK feedback information sent by the UE on an uplink carrier.

Further, the sending determining module 12 is specifically configured to send downlink data to the UE on the at least one downlink carrier belonging to the other cell, and meanwhile, information of a TPC command field in a PDCCH of the downlink data on the at least one downlink carrier belonging to the other cell carries a resource index of the PUCCH format3 for sending the HARQ-ACK feedback information by the UE.

Further, the sending determining module 12 is specifically configured to, assuming that the UE detects the downlink data on the at least one downlink carrier belonging to the other cell, determine, according to information of a TPC command field in a PDCCH of the downlink data on the at least one downlink carrier belonging to the other cell, a resource index of the PUCCH format3 for the HARQ-ACK feedback information sent by the UE.

Further, the sending determining module 12 is specifically configured to assume that the UE detects the downlink data on the first downlink carrier and the second downlink carrier at the same time and does not detect the downlink data on downlink carriers belonging to other cells, configure a channel selection scheme for the UE, and determine, according to the channel selection scheme, a resource index of the PUCCH format1b where the UE sends the HARQ-ACK feedback information on the first uplink carrier or the second uplink carrier, where the channel selection scheme includes a pre-configured correspondence relationship between the HARQ-ACK feedback information, a resource index of an uplink carrier, and a HARQ-ACK feedback information bit. A sending determining module 11, configured to determine, in the first cell, a PUCCH resource used by the UE to send HARQ-ACK feedback information according to the PDCCH in the first type of downlink data, or determine, in the first cell, a PUCCH resource used by the UE to send HARQ-ACK feedback information according to at least one PUCCH resource configured on the first uplink carrier and available for feeding back a detection result of the second type of downlink data, and the PUCCH resource configured in a latest information indicating a TPC command field in the PDCCH that indicates activation of the downlink SPS, where the UE sends HARQ-ACK feedback information; in the second cell, determining a PUCCH resource used by the UE for sending the HARQ-ACK feedback information according to the PDCCH in the first type of downlink data, or determining a PUCCH resource used by the UE for sending the HARQ-ACK feedback information in the second cell according to at least one PUCCH resource which is configured on the second uplink carrier for the UE and can be used for feeding back a detection result of the second type of downlink data and the PUCCH resource which is configured in the latest information indicating a TPC command field in the PDCCH activated by the downlink SPS and used for sending the HARQ-ACK feedback information by the UE.

Further, the sending determining module 12 is specifically configured to, assuming that the UE detects the first type of downlink data on the first downlink carrier, determine, according to a resource used by the PDCCH of the downlink data, the PUCCH resource where the UE sends the HARQ-ACK feedback information;

according to formula (1)

parameters configured for the network device;

if the network device uses two antennas, according to the formula (2)

Further, the sending determining module 12 is specifically configured to, assuming that the UE detects the second type of downlink data on the first downlink carrier, determine the PUCCH resource used by the UE for feeding back the detection result of the second type of downlink data on the first uplink carrier or the second uplink carrier;

determining that the HARQ-ACK feedback information sent by the UE corresponds to the resource index of the PUCCH of the first uplink carrier or the second uplink carrier of a first antenna port according to the latest information of the TPC command field in the PDCCH for indicating the downlink SPS activation

Further, the sending determining module 12 is specifically configured to, assuming that the UE detects the first type of downlink data on the second downlink carrier, determine, according to a resource used by the PDCCH of the downlink data, the PUCCH resource where the UE sends the HARQ-ACK feedback information;

according to formula (1)

if the network device uses two antennas, according to the formula (2)

Further, the sending determining module 12 is specifically configured to determine, on the assumption that the UE detects the second type of downlink data on the second downlink carrier, the PUCCH resource used for feeding back the detection result of the second type of downlink data on the first uplink carrier or the second uplink carrier by the UE;

The apparatus of this embodiment may be used to implement the technical solutions of the method embodiments shown in fig. 6 or fig. 7, and the implementation principles and technical effects are similar, which are not described herein again.

Fig. 12 is a schematic structural diagram of a UE according to a third embodiment of the present invention, and as shown in fig. 12, the apparatus according to this embodiment may include: a processor 11, configured to determine a first uplink carrier and a second uplink carrier of a physical uplink control channel PUCCH, where the first uplink carrier corresponds to a first cell and the second uplink carrier corresponds to a second cell, where the physical uplink control channel PUCCH is used to send hybrid automatic repeat request HARQ-ACK feedback information; detecting downlink data on a downlink carrier to obtain a detection result, wherein the downlink carrier comprises a first downlink carrier belonging to a first cell and/or a second downlink carrier belonging to a second cell and/or at least one downlink carrier belonging to other cells, the downlink data is first type downlink data or second type downlink data, the first type downlink data is a physical downlink shared data channel (PDSCH) scheduled by a Physical Downlink Control Channel (PDCCH) or a PDCCH releasing downlink semi-persistent scheduling (SPS), and the second type downlink data is a PDSCH not scheduled by the PDCCH; and determining the format of the PUCCH and the resource index of the PUCCH for sending the HARQ-ACK feedback information according to the detection result.

Further, the processor 11 is specifically configured to determine that a format of the PUCCH that sends the HARQ-ACK feedback information is a first format if the downlink data is detected on the at least one downlink carrier that belongs to the other cell, where the first format is PUCCH format 3; determining that a format of the PUCCH for transmitting the HARQ-ACK feedback information is a second format if the downlink data is detected only on the first downlink carrier of the first cell and/or the second downlink carrier of the second cell, where the second format is PUCCH format 1a or PUCCH format1 b.

Fig. 13 is a schematic structural diagram of a UE according to a fourth embodiment of the present invention, and as shown in fig. 13, the apparatus according to this embodiment may further include, on the basis of the apparatus structure shown in fig. 12: a receiver 21 for receiving resource configuration information; the processor 11 is specifically configured to determine, according to the resource configuration information, to send the HARQ-ACK feedback information through the PUCCH format 3.

Further, the processor 11 is specifically configured to detect downlink data on the at least one downlink carrier belonging to the other cell; determining all the PUCCH format3 resources which can be used for sending the HARQ-ACK feedback information in the first cell and the second cell according to the PUCCH format3 resources pre-configured by the network equipment; and acquiring the resource index of the PUCCH for sending the HARQ-ACK feedback information according to the information of the Transmission Power Control (TPC) command field in the PDCCH of the PDSCH detected on the at least one downlink carrier belonging to other cells.

Further, the processor 11 is specifically configured to detect the first type of downlink data on the first downlink carrier, detect the first type of downlink data on the second downlink carrier, and detect no downlink data on downlink carriers belonging to other cells; or, the second type of downlink data is detected on the first downlink carrier, the second type of downlink data is detected on the second downlink carrier, and no downlink data is detected on downlink carriers belonging to other cells; or, the first type of downlink data is detected on the first downlink carrier, the second type of downlink data is detected on the second downlink carrier, and no downlink data is detected on downlink carriers belonging to other cells; or, the second type of downlink data is detected on the first downlink carrier, the first type of downlink data is detected on the second downlink carrier, and no downlink data is detected on downlink carriers belonging to other cells; determining that the format of the PUCCH for sending the HARQ-ACK feedback information is a second format, wherein the second format is PUCCH format1 b; determining the resource index of the PUCCH of the first uplink carrier or the second uplink carrier according to a pre-configured channel selection scheme, wherein the channel selection scheme comprises the pre-configured HARQ-ACK feedback information, the resource index of the PUCCH and the corresponding relation between the HARQ-ACK feedback information bits. A processor 11, configured to determine, in the first cell, a PUCCH resource available for sending the HARQ-ACK feedback information on the first uplink carrier according to the PDCCH in the first type of downlink data, or determine, according to at least one PUCCH resource available for feeding back a detection result of the second type of downlink data on the first uplink carrier configured by a network device and information of a TPC command field in a PDCCH indicating activation of the downlink SPS, the PUCCH resource available for sending the HARQ-ACK feedback information on the first uplink carrier;

in the second cell, determining the PUCCH resource available for transmitting the HARQ-ACK feedback information on the second uplink carrier according to the PDCCH in the first type of downlink data, or determining the PUCCH resource available for transmitting the HARQ-ACK feedback information on the second uplink carrier according to at least one PUCCH resource available for feeding back the detection result of the second type of downlink data on the second uplink carrier configured by a network device and information of the TPC command field in the PDCCH indicating activation of the downlink SPS.

Further, the receiver 21 is further configured to receive scheme configuration information sent by the network device; the processor 11 is specifically configured to determine, according to the scheme configuration information, whether to determine, by using the second scheme, a format of the PUCCH and a resource index of the PUCCH, where the PUCCH and the HARQ-ACK feedback information are sent.

Further, the processor 11 is specifically configured to detect the first type of downlink data on the first downlink carrier; determining that the format of the PUCCH for sending the HARQ-ACK feedback information is a third format or a second format according to the PDCCH in the first type of downlink data, wherein the third format is PUCCH format 1a, and the second format is PUCCH format1 b;

according to formula (1)

parameters configured for the network device;

if the network device uses two antennas, according to the formula (2)

Further, the processor 11 is specifically configured to detect the second type of downlink data on the first downlink carrier; determining a format of the PUCCH transmitting the HARQ-ACK feedback information as the third format or the second format;

determining a resource index of the PUCCH of the first uplink carrier or the second uplink carrier corresponding to a first antenna port according to at least one PUCCH resource which is configured by network equipment and can be used for feeding back a detection result of the second type of downlink data on the first uplink carrier or the second uplink carrier and information of the latest TPC command field in the PDCCH for indicating the downlink SPS activation

Further, the processor 11 is specifically configured to detect the first type of downlink data on the second downlink carrier; determining that the format of the PUCCH for sending the HARQ-ACK feedback information is a third format or a second format according to the PDCCH in the first type of downlink data, wherein the third format is PUCCH format 1a, and the second format is PUCCH format1 b;

according to formula (1)

Wherein n is_CCEA first control channel of the PDCCH of the PDSCH scheduled for on the first downlink carrier or the second downlink carrierA sequence number of an element CCE or a sequence number of a first CCE of the PDCCH releasing the downlink SPS,

parameters configured for the network device;

if the network device uses two antennas, according to the formula (2)

Further, the processor 11 is specifically configured to detect the second type of downlink data on the second downlink carrier; determining a format of the PUCCH transmitting the HARQ-ACK feedback information as the third format or the second format;

Further, the processor 11 is further configured to, if it is determined that the HARQ-ACK feedback information is sent on the first uplink carrier, obtain power control information of the PUCCH according to information of the TPC command field in the PDCCH on the first downlink carrier; and if the HARQ-ACK feedback information is determined to be sent on the second uplink carrier, acquiring power control information of the PUCCH according to the information of the TPC command field in the PDCCH on the second downlink carrier.

The apparatus of this embodiment may be configured to execute the technical solution of any one of the method embodiments in fig. 1 to fig. 5, and the implementation principle and the technical effect are similar, which are not described herein again.

Fig. 14 is a schematic structural diagram of a third embodiment of a network device in the present invention, and as shown in fig. 14, the device in this embodiment may include: a transmitter 11 and a processor 12, where the processor 12 is configured to configure, for a user equipment UE, a first uplink carrier and a second uplink carrier of a physical uplink control channel PUCCH for transmitting hybrid automatic repeat request HARQ-ACK feedback information, where the first uplink carrier corresponds to a first cell, and the second uplink carrier corresponds to a second cell; a transmitter 11, configured to transmit downlink data to the UE through a downlink carrier, where the downlink carrier includes a first downlink carrier belonging to a first cell and/or a second downlink carrier belonging to a second cell and/or at least one downlink carrier belonging to another cell, the downlink data is first-type downlink data or second-type downlink data, the first-type downlink data is a physical downlink shared data channel PDSCH scheduled by a physical downlink control channel PDCCH or a PDCCH releasing downlink semi-persistent scheduling SPS, and the second-type downlink data is a PDSCH not scheduled by the PDCCH; a processor 12 further configured to determine the PUCCH resources available to the UE for transmitting the HARQ-ACK feedback information; and detecting the HARQ-ACK feedback information sent by the UE on an uplink carrier according to the determined PUCCH resource.

Further, the processor 12 is further configured to configure, in advance, for the UE, that the PUCCH format for sending the HARQ-ACK feedback information is PUCCH format3 and channel resources for sending the PUCCH format3 by the UE.

Further, the transmitter 11, in particular for passing N₁The downlink carrier transmits the downlink data to the UE; a processor 12, specifically configured to assume that the UE is at N₂On one of the downlink carriers has detectedThe downlink data determines N₃The PUCCH resource, N, available to the UE for transmitting the HARQ-ACK feedback information₁、N₂And N₃Is a natural number, and N₂≤N₁，

(ii) a According to the determination N₃And the PUCCH resource which can be used by the UE for sending the HARQ-ACK feedback information detects the HARQ-ACK feedback information sent by the UE on an uplink carrier.

Further, the transmitter 11 is specifically configured to send downlink data to the UE on the at least one downlink carrier belonging to the other cell, and simultaneously carry, in information of a TPC command field in a PDCCH of the downlink data on the at least one downlink carrier belonging to the other cell, a resource index of the pucchfmat 3 where the HARQ-ACK feedback information is sent by the UE.

Further, the processor 12 is specifically configured to, assuming that the UE detects the downlink data on the at least one downlink carrier belonging to the other cell, determine, according to information of a TPC command field in a PDCCH of the downlink data on the at least one downlink carrier belonging to the other cell, a resource index of the PUCCH format3 where the UE sends the HARQ-ACK feedback information.

Further, the processor 12 is specifically configured to assume that the UE detects the downlink data on the first downlink carrier and the second downlink carrier at the same time and does not detect the downlink data on downlink carriers belonging to other cells, configure a channel selection scheme for the UE, and determine, according to the channel selection scheme, a resource index of the PUCCH format1b where the UE sends the HARQ-ACK feedback information on the first uplink carrier or the second uplink carrier, where the channel selection scheme includes a pre-configured correspondence relationship between the HARQ-ACK feedback information, a resource index of an uplink carrier, and HARQ-ACK feedback information bits. The processor 12 is further configured to determine, in the first cell, a PUCCH resource used by the UE to send HARQ-ACK feedback information according to the PDCCH in the first type of downlink data, or determine, in the first cell, a PUCCH resource used by the UE to send HARQ-ACK feedback information according to at least one PUCCH resource configured on the first uplink carrier and available for feeding back a detection result of the second type of downlink data, and the PUCCH resource configured in a latest information indicating a TPC command field in the PDCCH indicating activation of the downlink SPS and used by the UE to send HARQ-ACK feedback information; in the second cell, determining a PUCCH resource used by the UE for sending the HARQ-ACK feedback information according to the PDCCH in the first type of downlink data, or determining a PUCCH resource used by the UE for sending the HARQ-ACK feedback information in the second cell according to at least one PUCCH resource which is configured on the second uplink carrier for the UE and can be used for feeding back a detection result of the second type of downlink data and the PUCCH resource which is configured in the latest information indicating a TPC command field in the PDCCH activated by the downlink SPS and used for sending the HARQ-ACK feedback information by the UE.

Further, the processor 12 is specifically configured to assume that the UE detects the first type of downlink data on the first downlink carrier, and determine, according to a resource used by the PDCCH of the downlink data, the PUCCH resource where the UE sends the HARQ-ACK feedback information;

according to formula (1)

parameters configured for the network device;

if the network device uses two antennas, according to the formula (2)

Further, the processor 12 is specifically configured to, assuming that the UE detects the second type of downlink data on the first downlink carrier, determine the PUCCH resource used for feeding back the detection result of the second type of downlink data on the first uplink carrier or the second uplink carrier by the UE;

according to formula (1)

parameters configured for the network device;

if the network device uses two antennas, according to the formula (2)

Further, the processor 12 is further configured to carry, in the information of the TPC command field in the PDCCH in the downlink data on the first downlink carrier, power control information of the PUCCH, where the UE sends the HARQ-ACK feedback information on the first uplink carrier; and carrying power control information of the PUCCH, which is used for the UE to send the HARQ-ACK feedback information on the second uplink carrier, in information of the TPC command field in the PDCCH in the downlink data on the second downlink carrier.

Fig. 15 is a schematic structural diagram of an uplink control channel transmission system according to an embodiment of the present invention, and as shown in fig. 15, the system of the embodiment includes: UE11 and network device 12, where UE11 may adopt the structure of the apparatus embodiment shown in fig. 8 or fig. 9, and correspondingly, may execute the technical solution of any one of the method embodiments in fig. 1 to fig. 5, and its implementation principle and technical effect are similar, and are not described herein again; the network device 12 may adopt the structure of the apparatus embodiment shown in fig. 10 or fig. 11, and accordingly, may execute the technical solution of the method embodiment shown in fig. 6 or fig. 7, which implements similar principles and technical effects, and is not described herein again.

Further, the structure shown in fig. 15 may also be taken as a schematic structural diagram of an uplink control channel transmission entity system, including: UE11 and network device 12, where UE11 may adopt the structure of the apparatus embodiment shown in fig. 12 or fig. 13, and correspondingly, may execute the technical solution of any one of the method embodiments in fig. 1 to fig. 5, and its implementation principle and technical effect are similar, and are not described herein again; the network device 12 may adopt the structure of the apparatus embodiment shown in fig. 14, and accordingly, may execute the technical solution of the method embodiment shown in fig. 6 or fig. 7, which has similar implementation principle and technical effect, and is not described herein again.

In the embodiments provided in the present invention, it should be understood that the disclosed apparatus and method may be implemented in other ways. For example, the above-described apparatus embodiments are merely illustrative, and for example, the division of the units is only one logical division, and other divisions may be realized in practice, for example, a plurality of units or components may be combined or integrated into another system, or some features may be omitted, or not executed. In addition, the shown or discussed mutual coupling or direct coupling or communication connection may be an indirect coupling or communication connection through some interfaces, devices or units, and may be in an electrical, mechanical or other form.

The units described as separate parts may or may not be physically separate, and parts displayed as units may or may not be physical units, may be located in one place, or may be distributed on a plurality of network units. Some or all of the units can be selected according to actual needs to achieve the purpose of the solution of the embodiment.

In addition, functional units in the embodiments of the present invention may be integrated into one processing unit, or each unit may exist alone physically, or two or more units are integrated into one unit. The integrated unit can be realized in a form of hardware, or in a form of hardware plus a software functional unit.

The integrated unit implemented in the form of a software functional unit may be stored in a computer readable storage medium. The software functional unit is stored in a storage medium and includes several instructions to enable a computer device (which may be a personal computer, a server, or a network device) or a processor (processor) to execute some steps of the methods according to the embodiments of the present invention. And the aforementioned storage medium includes: various media capable of storing program codes, such as a usb disk, a removable hard disk, a Read-Only Memory (ROM), a Random Access Memory (RAM), a magnetic disk, or an optical disk.

It is obvious to those skilled in the art that, for convenience and simplicity of description, the foregoing division of the functional modules is merely used as an example, and in practical applications, the above function distribution may be performed by different functional modules according to needs, that is, the internal structure of the device is divided into different functional modules to perform all or part of the above described functions. For the specific working process of the device described above, reference may be made to the corresponding process in the foregoing method embodiment, which is not described herein again.

Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; while the invention has been described in detail and with reference to the foregoing embodiments, it will be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; and the modifications or the substitutions do not make the essence of the corresponding technical solutions depart from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. An uplink control channel transmission method, comprising:

determining that a format of the PUCCH for transmitting the HARQ-ACK feedback information is a first format if the downlink data is detected on the at least one downlink carrier belonging to the other cell, wherein the first format is PUCCH format 3;

2. The method according to claim 1, wherein before determining the first uplink carrier and the second uplink carrier of the Physical Uplink Control Channel (PUCCH) available for transmitting hybrid automatic repeat request (HARQ-ACK) feedback information, further comprising:

and receiving resource configuration information, and determining to send the HARQ-ACK feedback information through PUCCH format3 according to the resource configuration information.

3. The method according to claim 1 or 2, wherein the detecting downlink data on the downlink carrier to obtain a detection result comprises:

detecting downlink data on the at least one downlink carrier belonging to the other cell;

determining all the PUCCH format3 resources which can be used for sending the HARQ-ACK feedback information in the first cell and the second cell according to the PUCCH format3 resources pre-configured by network equipment;

and acquiring the resource index of the PUCCH for sending the HARQ-ACK feedback information according to the information of the Transmission Power Control (TPC) command field in the PDCCH of the PDSCH detected on the at least one downlink carrier belonging to other cells.

4. The method according to claim 1 or 2, wherein the detecting downlink data on the downlink carrier to obtain a detection result comprises:

detecting the first type of downlink data on the first downlink carrier, detecting the first type of downlink data on the second downlink carrier, and not detecting the downlink data on the downlink carriers belonging to other cells; or,

detecting the second type of downlink data on the first downlink carrier, detecting the second type of downlink data on the second downlink carrier, and not detecting the downlink data on the downlink carriers belonging to other cells; or,

detecting the first type of downlink data on the first downlink carrier, detecting the second type of downlink data on the second downlink carrier, and not detecting the downlink data on the downlink carriers belonging to other cells; or,

detecting the second type of downlink data on the first downlink carrier, detecting the first type of downlink data on the second downlink carrier, and not detecting the downlink data on the downlink carriers belonging to other cells;

determining that the format of the PUCCH for sending the HARQ-ACK feedback information is a second format, wherein the second format is PUCCH format1 b;

determining the resource index of the PUCCH of the first uplink carrier or the second uplink carrier according to a pre-configured channel selection scheme, wherein the channel selection scheme comprises the pre-configured HARQ-ACK feedback information, the resource index of the PUCCH and the corresponding relation between the HARQ-ACK feedback information bits.

5. The method of claim 4, wherein before the determining the resource index of the PUCCH for the first uplink carrier or the second uplink carrier according to a preconfigured channel selection scheme, further comprising:

in the first cell, determining a PUCCH resource available for transmitting the HARQ-ACK feedback information on the first uplink carrier according to the PDCCH in the first type of downlink data, or determining the PUCCH resource available for transmitting the HARQ-ACK feedback information on the first uplink carrier according to at least one PUCCH resource available for feeding back a detection result of the second type of downlink data on the first uplink carrier configured by a network device and information of a TPC command field in the PDCCH indicating activation of the downlink SPS;

6. The method according to claim 5, wherein before determining the format of the PUCCH and the resource index of the PUCCH for transmitting the HARQ-ACK feedback information according to the detection result, the method further comprises:

and receiving scheme configuration information sent by network equipment, and determining whether a second scheme is adopted to determine the format of the PUCCH and the resource index of the PUCCH for sending the HARQ-ACK feedback information according to the scheme configuration information.

7. The method according to claim 1 or 2, wherein the detecting downlink data on the downlink carrier to obtain a detection result comprises:

detecting the first type of downlink data on the first downlink carrier;

according to formula (1)

parameters configured for the network device;

if the network device uses two antennas, according to the formula (2)

8. The method according to claim 1 or 2, wherein the detecting downlink data on the downlink carrier to obtain a detection result comprises:

detecting the second type of downlink data on the first downlink carrier;

determining a format of the PUCCH transmitting the HARQ-ACK feedback information to be a third format or the second format;

determining a resource index of the PUCCH of the first uplink carrier or the second uplink carrier corresponding to a first antenna port according to at least one PUCCH resource which is configured by network equipment and can be used for feeding back a detection result of the second type of downlink data on the first uplink carrier or the second uplink carrier and information of a latest TPC command field in a PDCCH (physical Downlink control channel) indicating the downlink SPS activation

9. The method according to claim 1 or 2, wherein the detecting downlink data on the downlink carrier to obtain a detection result comprises:

detecting the first type downlink data on the second downlink carrier;

according to formula (1)

parameters configured for the network device;

if the network device uses two antennas, according to the formula (2)

10. The method according to claim 1 or 2, wherein the detecting downlink data on the downlink carrier to obtain a detection result comprises:

detecting the second type downlink data on the second downlink carrier;

at least one available feedback on the first uplink carrier or the second uplink carrier configured according to network equipmentDetermining a resource index of the PUCCH corresponding to the first uplink carrier or the second uplink carrier of a first antenna port according to the PUCCH resource of the detection result of the second type downlink data and the latest information indicating the TPC command field in the PDCCH activated by the downlink SPS

11. The method according to claim 1 or 2, wherein after determining the format of the PUCCH and the resource index of the PUCCH for transmitting the HARQ-ACK feedback information according to the detection result, the method further comprises:

if the HARQ-ACK feedback information is determined to be sent on the first uplink carrier, acquiring power control information of the PUCCH according to information of a TPC command field in the PDCCH on the first downlink carrier;

and if the HARQ-ACK feedback information is determined to be sent on the second uplink carrier, acquiring power control information of the PUCCH according to the information of the TPC command field in the PDCCH on the second downlink carrier.

12. An uplink control channel transmission method, comprising:

detecting the HARQ-ACK feedback information sent by the UE on an uplink carrier according to the determined PUCCH resource;

the sending downlink data to the UE through a downlink carrier to determine the PUCCH resource that the UE can use to send the HARQ-ACK feedback information includes:

and sending downlink data to the UE on the at least one downlink carrier belonging to the other cell, wherein the information of the TPC command field in the PDCCH of the downlink data on the at least one downlink carrier belonging to the other cell carries the resource index of the PUCCH format3 for the UE to send the HARQ-ACK feedback information.

13. The method of claim 12, wherein before determining the PUCCH resources available to the UE for transmitting the HARQ-ACK feedback information by transmitting downlink data to the UE via a downlink carrier, further comprising:

configuring the PUCCH format for sending the HARQ-ACK feedback information for the UE in advance as PUCCH format3 and sending channel resources of the PUCCH format3 by the UE.

14. The method of claim 13, wherein the determining the PUCCH resources available to the UE for transmitting the HARQ-ACK feedback information by transmitting downlink data to the UE via a downlink carrier comprises:

by N₁Transmitting the downlink data to the UE on the downlink carrier, and then assuming that the UE is in N₂Detecting the downlink data on each downlink carrier, and determining N₃Seed instituteThe PUCCH resource that the UE can use to transmit the HARQ-ACK feedback information, N₁、N₂And N₃Is a natural number, and N₂≤N₁，

The detecting the HARQ-ACK feedback information sent by the UE on an uplink carrier according to the determined PUCCH resource comprises:

according to the determination N₃And the PUCCH resource which can be used by the UE for sending the HARQ-ACK feedback information detects the HARQ-ACK feedback information sent by the UE on an uplink carrier.

15. The method of claim 12, wherein the determining the PUCCH resources available to the UE for transmitting the HARQ-ACK feedback information comprises:

assuming that the UE detects the downlink data on the at least one downlink carrier belonging to the other cell, determining a resource index of the PUCCH format3 for the UE to send the HARQ-ACK feedback information according to information of a TPC command field in a PDCCH of the downlink data on the at least one downlink carrier belonging to the other cell.

16. The method of claim 15, wherein the determining the PUCCH resources available to the UE for transmitting the HARQ-ACK feedback information comprises:

assuming that the UE detects the downlink data on the first downlink carrier and the second downlink carrier at the same time and does not detect the downlink data on downlink carriers belonging to other cells, configuring a channel selection scheme for the UE, and determining a resource index of a PUCCH format1b for the UE to send the HARQ-ACK feedback information on the first uplink carrier or the second uplink carrier according to the channel selection scheme, where the channel selection scheme includes a pre-configured correspondence relationship between the HARQ-ACK feedback information, a resource index of an uplink carrier, and HARQ-ACK feedback information bits.

17. The method of claim 16, wherein before configuring the channel selection scheme for the UE, further comprising:

in the first cell, determining a PUCCH resource used by the UE for sending the HARQ-ACK feedback information according to the PDCCH in the first type of downlink data, or determining a PUCCH resource used by the UE for sending HARQ-ACK feedback information in the first cell according to at least one PUCCH resource which is configured on the first uplink carrier for the UE and can be used for feeding back a detection result of the second type of downlink data and the PUCCH resource which is configured in the latest information indicating a TPC command field in the PDCCH activated by the downlink SPS and used for sending the HARQ-ACK feedback information by the UE;

in the second cell, determining a PUCCH resource used by the UE for sending the HARQ-ACK feedback information according to the PDCCH in the first type of downlink data, or determining a PUCCH resource used by the UE for sending the HARQ-ACK feedback information in the second cell according to at least one PUCCH resource which is configured on the second uplink carrier for the UE and can be used for feeding back a detection result of the second type of downlink data and the PUCCH resource which is configured in the latest information indicating a TPC command field in the PDCCH activated by the downlink SPS and used for sending the HARQ-ACK feedback information by the UE.

18. The method of claim 14, wherein the determining the PUCCH resources available to the UE for transmitting the HARQ-ACK feedback information comprises:

assuming that the UE detects the first type of downlink data on the first downlink carrier, determining the PUCCH resource for the UE to send the HARQ-ACK feedback information according to the resource used by the PDCCH of the downlink data;

according to formula (1)

if the network device uses two antennas, according to the formula (2)

19. The method of claim 14, wherein the determining the PUCCH resources available to the UE for transmitting the HARQ-ACK feedback information comprises:

assuming that the UE detects the second type of downlink data on the first downlink carrier, determining the PUCCH resource used by the UE for feeding back the detection result of the second type of downlink data on the first uplink carrier or the second uplink carrier;

20. The method of claim 14, wherein the determining the PUCCH resources available to the UE for transmitting the HARQ-ACK feedback information comprises:

assuming that the UE detects the first type of downlink data on the second downlink carrier, determining the PUCCH resource for the UE to send the HARQ-ACK feedback information according to the resource used by the PDCCH of the downlink data;

according to formula (1)

parameters configured for the network device;

if the network device uses two antennas, according to the formula (2)

Computing a location corresponding to the second antenna portResource index of PUCCH

21. The method of claim 14, wherein the determining the PUCCH resources available to the UE for transmitting the HARQ-ACK feedback information comprises:

assuming that the UE detects the second type of downlink data on the second downlink carrier, determining the PUCCH resource used by the UE for feeding back the detection result of the second type of downlink data on the first uplink carrier or the second uplink carrier;

determining that the HARQ-ACK feedback information sent by the UE corresponds to the resource index of the PUCCH of the first uplink carrier or the second uplink carrier of a first antenna port according to the latest information of the TPC command field in the PDCCH for indicating the downlink SPS activationAnd a resource index of the PUCCH corresponding to the first uplink carrier or the second uplink carrier of a second antenna port

22. The method according to any of claims 12-21, wherein after determining the PUCCH resources available for transmitting the HARQ-ACK feedback information by the UE by transmitting downlink data to the UE via a downlink carrier, further comprising:

carrying power control information of the PUCCH on which the UE sends the HARQ-ACK feedback information on the first uplink carrier in information of the TPC command field in the PDCCH in the downlink data on the first downlink carrier;

and carrying power control information of the PUCCH, which is used for the UE to send the HARQ-ACK feedback information on the second uplink carrier, in information of the TPC command field in the PDCCH in the downlink data on the second downlink carrier.

23. A User Equipment (UE), comprising:

24. The UE of claim 23, further comprising:

and the format determining module is used for receiving resource configuration information and determining to send the HARQ-ACK feedback information through the PUCCHFIMAT 3 according to the resource configuration information.

25. The UE according to claim 23 or 24, wherein the detecting module is specifically configured to detect downlink data on the at least one downlink carrier belonging to the other cell;

the resource determining module is specifically configured to determine, according to the PUCCH format3 resource pre-configured by the network device, all the pucchfmat 3 resources available for sending the HARQ-ACK feedback information in the first cell and the second cell;

26. The UE according to claim 23 or 24, wherein the detecting module is specifically configured to detect the first type of downlink data on the first downlink carrier, detect the first type of downlink data on the second downlink carrier, and detect no downlink data on downlink carriers belonging to other cells; or,

the resource determining module is specifically configured to determine that a format of the PUCCH for sending the HARQ-ACK feedback information is a second format, where the second format is a PUCCH format1 b;

27. The UE of claim 26, wherein the resource determining module is further configured to determine, in the first cell, a PUCCH resource available for sending the HARQ-ACK feedback information on the first uplink carrier according to the PDCCH in the first type of downlink data, or determine the PUCCH resource available for sending the HARQ-ACK feedback information on the first uplink carrier according to at least one PUCCH resource configured by a network device and available for feeding back a detection result of the second type of downlink data on the first uplink carrier and a latest information indicating a TPC command field in the PDCCH activated for the downlink SPS;

28. The UE of claim 27, further comprising:

and the scheme configuration receiving module is used for receiving scheme configuration information sent by the network equipment and determining whether a second scheme is adopted to determine the format of the PUCCH and the resource index of the PUCCH for sending the HARQ-ACK feedback information according to the scheme configuration information.

29. The UE according to claim 23 or 24, wherein the detecting module is specifically configured to detect the first type of downlink data on the first downlink carrier;

the resource determining module is specifically configured to determine, according to the PDCCH in the first type of downlink data, that a format of the PUCCH that sends the HARQ-ACK feedback information is a third format or a second format, where the third format is PUCCHformat 1a, and the second format is PUCCH format1 b;

according to formula (1)

parameters configured for the network device;

if the network device uses two antennas, according to the formula (2)

30. The UE according to claim 23 or 24, wherein the detecting module is specifically configured to detect the second type of downlink data on the first downlink carrier;

the resource determining module is specifically configured to determine that a format of the PUCCH that sends the HARQ-ACK feedback information is a third format or the second format;

31. The UE according to claim 23 or 24, wherein the detecting module is specifically configured to detect the first type downlink data on the second downlink carrier;

according to formula (1)

parameters configured for the network device;

if the network device uses two antennas, according to the formula (2)

32. The UE according to claim 23 or 24, wherein the detecting module is specifically configured to detect the second type of downlink data on the second downlink carrier;

33. The UE of claim 23 or 24, further comprising:

a power control module, configured to, if it is determined that the HARQ-ACK feedback information is sent on the first uplink carrier, obtain power control information of the PUCCH according to information of a TPC command field in the PDCCH on the first downlink carrier;

34. A network device, comprising:

a detection module, configured to detect, according to the determined PUCCH resource, the HARQ-ACK feedback information sent by the UE on an uplink carrier;

the sending determination module is specifically configured to send downlink data to the UE on the at least one downlink carrier belonging to the other cell, and meanwhile, information of a TPC command field in a PDCCH of the downlink data on the at least one downlink carrier belonging to the other cell carries a resource index of the PUCCH format3 for sending the HARQ-ACK feedback information by the UE.

35. The network device of claim 34, further comprising:

a resource configuration module, configured to configure, in advance, for the UE, that the PUCCH format for sending the HARQ-ACK feedback information is PUCCH format3 and the UE sends channel resources of the PUCCH format 3.

36. Network device according to claim 35, wherein said transmission determination module is specifically configured to pass N₁Transmitting the downlink data to the UE on the downlink carrier, and then assuming that the UE is in N₂Detecting the downlink data on each downlink carrier, and determining N₃The PUCCH resource, N, available to the UE for transmitting the HARQ-ACK feedback information₁、N₂And N₃Is a natural number, and N₂≤ N₁，

(ii) a The detection module is specifically configured to determine N according to the determination₃And the PUCCH resource which can be used by the UE for sending the HARQ-ACK feedback information detects the HARQ-ACK feedback information sent by the UE on an uplink carrier.

37. The network device of claim 34, wherein the transmission determining module is specifically configured to, assuming that the UE detects the downlink data on the at least one downlink carrier belonging to the other cell, determine, according to information in a TPC command field in a PDCCH of the downlink data on the at least one downlink carrier belonging to the other cell, a resource index of the PUCCH format3 for the HARQ-ACK feedback information sent by the UE.

38. The network device according to claim 37, wherein the sending determination module is specifically configured to, assuming that the UE detects the downlink data on the first downlink carrier and the second downlink carrier at the same time and does not detect the downlink data on downlink carriers belonging to other cells, configure a channel selection scheme for the UE, and determine, according to the channel selection scheme, a resource index of a PUCCH format1b for the UE to send the HARQ-ACK feedback information on the first uplink carrier or the second uplink carrier, where the channel selection scheme includes a pre-configured correspondence relationship between the HARQ-ACK feedback information, a resource index of an uplink carrier, and the HARQ-ACK feedback information bits.

39. The network device of claim 38, wherein the transmission determining module is further configured to determine, in the first cell, a PUCCH resource used by the UE to transmit the HARQ-ACK feedback information according to the PDCCH in the first type of downlink data, or determine a PUCCH resource used by the UE to transmit HARQ-ACK feedback information in the first cell according to at least one PUCCH resource configured on the first uplink carrier and used for feeding back a detection result of the second type of downlink data and the PUCCH resource configured in a latest information indicating a TPC command field in the PDCCH indicating activation of the downlink SPS and used by the UE to transmit HARQ-ACK feedback information;

40. The network device according to claim 36, wherein the transmission determining module is specifically configured to determine, based on the resource used by the PDCCH for the downlink data, the PUCCH resource for the UE to transmit the HARQ-ACK feedback information, assuming that the UE detects the first type of downlink data on the first downlink carrier;

according to formula (1)

parameters configured for the network device;

if the network device uses two antennas, according to the formula (2)

41. The network device according to claim 36, wherein the transmission determining module is specifically configured to determine, assuming that the UE detects the second type of downlink data on the first downlink carrier, the PUCCH resource for feeding back the detection result of the second type of downlink data on the first uplink carrier or the second uplink carrier by the UE;

42. The network device according to claim 36, wherein the transmission determining module is specifically configured to determine, based on the resource used by the PDCCH for the downlink data, the PUCCH resource for the UE to transmit the HARQ-ACK feedback information, assuming that the UE detects the first type of downlink data on the second downlink carrier;

according to formula (1)

Wherein n is_CCEIs in the first downlink carrier or the second downlink carrierA sequence number of a first Control Channel Element (CCE) of the PDCCH of the PDSCH scheduled or a sequence number of a first CCE of the PDCCH releasing the downlink SPS on a downlink carrier,

parameters configured for the network device;

if the network device uses two antennas, according to the formula (2)

43. The network device according to claim 36, wherein the transmission determining module is specifically configured to determine, assuming that the UE detects the second type of downlink data on the second downlink carrier, the PUCCH resource used for feeding back the detection result of the second type of downlink data on the first uplink carrier or the second uplink carrier by the UE;

44. The network device of any of claims 34-43, further comprising:

a power control module, configured to carry, in information of the TPC command field in the PDCCH in the downlink data on the first downlink carrier, power control information of the PUCCH where the UE sends the HARQ-ACK feedback information on the first uplink carrier;

45. A User Equipment (UE), comprising

46. The UE of claim 45, further comprising:

a receiver for receiving resource configuration information;

the processor is specifically configured to determine, according to the resource configuration information, to send the HARQ-ACK feedback information through PUCCH format 3.

47. The UE of claim 45 or 46, wherein the processor is specifically configured to detect downlink data on the at least one downlink carrier belonging to the other cell; determining all PUCCH format3 resources which can be used for sending the HARQ-ACK feedback information in the first cell and the second cell according to the PUCCH format3 resources pre-configured by network equipment; and acquiring the resource index of the PUCCH for sending the HARQ-ACK feedback information according to the information of the Transmission Power Control (TPC) command field in the PDCCH of the PDSCH detected on the at least one downlink carrier belonging to other cells.

48. The UE according to claim 45 or 46, wherein the processor is specifically configured to detect the first type of downlink data on the first downlink carrier, detect the first type of downlink data on the second downlink carrier, and detect no downlink data on downlink carriers belonging to other cells; or, the second type of downlink data is detected on the first downlink carrier, the second type of downlink data is detected on the second downlink carrier, and no downlink data is detected on downlink carriers belonging to other cells; or, the first type of downlink data is detected on the first downlink carrier, the second type of downlink data is detected on the second downlink carrier, and no downlink data is detected on downlink carriers belonging to other cells; or, the second type of downlink data is detected on the first downlink carrier, the first type of downlink data is detected on the second downlink carrier, and no downlink data is detected on downlink carriers belonging to other cells; determining that the format of the PUCCH for sending the HARQ-ACK feedback information is a second format, wherein the second format is PUCCH format1 b; determining the resource index of the PUCCH of the first uplink carrier or the second uplink carrier according to a pre-configured channel selection scheme, wherein the channel selection scheme comprises the pre-configured HARQ-ACK feedback information, the resource index of the PUCCH and the corresponding relation between the HARQ-ACK feedback information bits.

49. The UE of claim 48, wherein the processor is further configured to determine, in the first cell, a PUCCH resource on the first uplink carrier that is available for sending the HARQ-ACK feedback information according to the PDCCH in the first type of downlink data, or determine the PUCCH resource on the first uplink carrier that is available for sending the HARQ-ACK feedback information according to at least one PUCCH resource configured by a network device on the first uplink carrier that is available for feeding back a detection result of the second type of downlink data and a latest one of information indicating a TPC command field in the PDCCH activated for downlink SPS;

50. The UE of claim 49, wherein the processor is further configured to receive scheme configuration information sent by a network device, and determine whether to use a second scheme to determine a format of the PUCCH and a resource index of the PUCCH for sending the HARQ-ACK feedback information according to the scheme configuration information.

51. The UE of claim 45 or 46, wherein the processor is specifically configured to detect the first type of downlink data on the first downlink carrier; determining that the format of the PUCCH for sending the HARQ-ACK feedback information is a third format or a second format according to the PDCCH in the first type of downlink data, wherein the third format is PUCCHfomat 1a, and the second format is PUCCH format1 b;

according to formula (1)

Calculating to obtain a resource index of the PUCCH corresponding to a first antenna portWherein n is_CCEA sequence number of a first Control Channel Element (CCE) of the PDCCH of the PDSCH scheduled or a sequence number of a first CCE of the PDCCH releasing downlink SPS on the first downlink carrier or the second downlink carrier,parameters configured for the network device;

if the network device uses two antennas, according to the formula (2)

52. The UE of claim 45 or 46, wherein the processor is specifically configured to detect the second type of downlink data on the first downlink carrier; determining a format of the PUCCH transmitting the HARQ-ACK feedback information to be a third format or the second format;

determining a resource index of the PUCCH of the first uplink carrier or the second uplink carrier corresponding to a first antenna port according to at least one PUCCH resource which is configured by network equipment and can be used for feeding back a detection result of the second type of downlink data on the first uplink carrier or the second uplink carrier and information of a latest TPC command field in a PDCCH (physical Downlink control channel) indicating the downlink SPS activationAnd a resource index of the PUCCH corresponding to the first uplink carrier or the second uplink carrier of a second antenna port

53. The UE according to claim 45 or 46, wherein the processor is specifically configured to detect the first type of downlink data on the second downlink carrier; determining that the format of the PUCCH for sending the HARQ-ACK feedback information is a third format or a second format according to the PDCCH in the first type of downlink data, wherein the third format is PUCCHfomat 1a, and the second format is PUCCH format1 b;

according to formula (1)

Wherein，n_CCEA sequence number of a first Control Channel Element (CCE) of the PDCCH of the PDSCH scheduled or a sequence number of a first CCE of the PDCCH releasing downlink SPS on the first downlink carrier or the second downlink carrier,

parameters configured for the network device;

if the network device uses two antennas, according to the formula (2)

54. The UE according to claim 45 or 46, wherein the processor is specifically configured to detect the second type of downlink data on the second downlink carrier; determining a format of the PUCCH transmitting the HARQ-ACK feedback information to be a third format or the second format;

55. The UE of claim 45 or 46, wherein the processor is further configured to, if it is determined that the HARQ-ACK feedback information is sent on the first uplink carrier, obtain power control information of the PUCCH according to information of a TPC command field in the PDCCH on the first downlink carrier; and if the HARQ-ACK feedback information is determined to be sent on the second uplink carrier, acquiring power control information of the PUCCH according to the information of the TPC command field in the PDCCH on the second downlink carrier.

56. A network device, comprising:

the processor is further configured to determine the PUCCH resources that the UE may use to transmit the HARQ-ACK feedback information; detecting the HARQ-ACK feedback information sent by the UE on an uplink carrier according to the determined PUCCH resource;

the transmitter is specifically configured to send downlink data to the UE on the at least one downlink carrier belonging to the other cell, and meanwhile, information of a TPC command field in a PDCCH of the downlink data on the at least one downlink carrier belonging to the other cell carries a resource index of the PUCCH format3 for which the HARQ-ACK feedback information is sent by the UE.

57. The network device of claim 56, wherein the processor is further configured to configure a format of the PUCCH for sending the HARQ-ACK feedback information for the UE in advance as PUCCH format3 and channel resources for the UE to send the PUCCH format 3.

58. The network device according to claim 57, wherein the transmitter is specifically configured to pass N₁The downlink carrier transmits the downlink data to the UE;

the processor is specifically configured to assume that the UE is at N₂Detecting the downlink data on each downlink carrier, and determining N₃The PUCCH resource, N, available to the UE for transmitting the HARQ-ACK feedback information₁、N₂And N₃Is a natural number, and N₂≤N₁，(ii) a According to the determination N₃And the PUCCH resource which can be used by the UE for sending the HARQ-ACK feedback information detects the HARQ-ACK feedback information sent by the UE on an uplink carrier.

59. The network device of claim 58, wherein the processor is specifically configured to determine, assuming that the UE detects the downlink data on the at least one downlink carrier belonging to the other cell, a resource index of the PUCCH format3 for sending the HARQ-ACK feedback information by the UE according to information in a TPC command field in a PDCCH of the downlink data on the at least one downlink carrier belonging to the other cell.

60. The network device according to claim 58, wherein the processor is specifically configured to, assuming that the UE detects the downlink data on the first downlink carrier and the second downlink carrier at the same time and does not detect the downlink data on downlink carriers belonging to other cells, configure a channel selection scheme for the UE, and determine, according to the channel selection scheme, a resource index of a PUCCH format1b for the UE to send the HARQ-ACK feedback information on the first uplink carrier or the second uplink carrier, where the channel selection scheme includes a pre-configured correspondence relationship between the HARQ-ACK feedback information, a resource index of an uplink carrier, and the HARQ-ACK feedback information bits.

61. The network device of claim 60, wherein the processor is further configured to determine, in the first cell, a PUCCH resource used by the UE for transmitting the HARQ-ACK feedback information according to the PDCCH in the first type of downlink data, or determine a PUCCH resource used by the UE for transmitting HARQ-ACK feedback information in a first cell according to at least one PUCCH resource configured on the first uplink carrier and available for feeding back a detection result of the second type of downlink data and the PUCCH resource configured in a latest information indicating a TPC command field in a PDCCH activated by the downlink SPS for transmitting the HARQ-ACK feedback information by the UE;

62. The network device of claim 58, wherein the processor is specifically configured to determine the PUCCH resource for the UE to send the HARQ-ACK feedback information according to a resource used by the PDCCH for the downlink data, assuming that the UE detects the first type of downlink data on the first downlink carrier;

according to formula (1)

if the network device uses two antennas, according to the formula (2)

63. The network device according to claim 58, wherein the processor is specifically configured to determine, assuming that the UE detects the second type of downlink data on the first downlink carrier, the PUCCH resource for feeding back the detection result of the second type of downlink data on the first uplink carrier or the second uplink carrier by the UE;

indicating said downlink SPS excitation according to the most recent oneInformation of the TPC command field in a living PDCCH determines that the UE transmits the HARQ-ACK feedback information corresponding to a resource index of the PUCCH of the first uplink carrier or the second uplink carrier of a first antenna port

64. The network device of claim 58, wherein the processor is specifically configured to determine, based on a resource used by the PDCCH for the downlink data, the PUCCH resource for the UE to send the HARQ-ACK feedback information, assuming that the UE detects the first type of downlink data on the second downlink carrier;

according to formula (1)

parameters configured for the network device;

if the network device uses two antennas, according to the formula (2)

65. The network device according to claim 58, wherein the processor is specifically configured to determine, assuming that the UE detects the second type of downlink data on the second downlink carrier, the PUCCH resource for feeding back the detection result of the second type of downlink data on the first uplink carrier or the second uplink carrier by the UE;

66. The network device of any one of claims 56 to 65, wherein the processor is further configured to carry power control information of the PUCCH for the UE to send the HARQ-ACK feedback information on the first uplink carrier in information of the TPC command field in the PDCCH in the downlink data on the first downlink carrier;

67. An uplink control channel transmission system, comprising: the UE adopts the UE of any one of claims 23 to 33, and the network equipment adopts the network equipment of any one of claims 34 to 44.

68. An uplink control channel transmission system, comprising: the UE adopts the UE of any one of claims 45 to 55, and the network equipment adopts the network equipment of any one of claims 56 to 66.